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GOST 21.408-93

UDC 691:002:006:354 Zh01

INTERSTATE STANDARD

System project documentation for construction

RULES FOR THE IMPLEMENTATION OF WORKING DOCUMENTATION

AUTOMATION OF TECHNOLOGICAL PROCESSES

System of design documents for construction.

Roles of industrial process automation working documentation execution

OKSTU 0021

Introduction date 1994-12-01

Foreword

1 DEVELOPED by the State Design and Design Institute "Proektmontazhavtomatika" and the Central Research and Design and Experimental Institute for Methodology, Organization, Economics and Design Automation (TsNIIproekt)

INTRODUCED by Gosstroy of Russia

2 ADOPTED by the Interstate Scientific and Technical Commission for Standardization and Technical Regulation in Construction November 10, 1993

State name

Body name government controlled construction

The Republic of Azerbaijan

Gosstroy of the Republic of Azerbaijan

Republic of Armenia

State Architecture of the Republic of Armenia

Republic of Belarus

Gosstroy of the Republic of Belarus

The Republic of Kazakhstan

Ministry of Construction of the Republic of Kazakhstan

Republic of Kyrgyzstan

Gosstroy of the Kyrgyz Republic

The Russian Federation

Gosstroy of Russia

The Republic of Tajikistan

Gosstroy of the Republic of Tajikistan

Ukraine

Ministry of Construction and Architecture of Ukraine

3 INTRODUCED IN THE FIRST

4 ENTERED INTO FORCE December 1, 1994 as state standard Russian Federation Decree of the Gosstroy of Russia dated April 5, 1994 No. 18-26

1 AREA OF USE

This standard establishes the composition and rules for the design of working documentation for automation systems technological processes And engineering systems(hereinafter - automation systems) of designed construction objects for various purposes.

The requirements of this standard apply to the working documentation for the technical support of automated process control systems, developed in accordance with GOST 34.201.

The standard does not apply to the working documentation of automation systems for centralized power supply management.

This standard uses references to the following standards:

GOST 2.701-84 ESKD. Schemes. Types and types. General requirements to fulfillment

GOST 2.702-75 ESKD. Rules for the execution of electrical circuits

GOST 2.710-81 ESKD. Alphanumeric designations in electrical circuits

GOST 2.722-69 ESKD. Conditional graphic designations in schemes. Electrical machines

GOST 2.732-68 ESKD. Conditional graphic designations in schemes. Sources of light

GOST 2.741-68 ESKD. Conditional graphic designations in schemes. Acoustic devices

GOST 2.780-68 ESKD. Conditional graphic designations in schemes. Elements of hydraulic and pneumatic networks

GOST 2.781-68 ESKD. Conditional graphic designations in schemes. Hydraulic and pneumatic guiding and regulating devices, control and measuring instruments

GOST 2.782-68 ESKD. Conditional graphic designations. Pumps and motors hydraulic and pneumatic

GOST 2.784-70 ESKD. Conditional graphic designations. Piping elements

GOST 2.785-70 ESKD. Conditional graphic designations. Pipe fittings

GOST 2.788-74 ESKD. Conditional graphic designations. Evaporators

GOST 2.789-74 ESKD. Conditional graphic designations. Heat exchangers

GOST 2.790-74 ESKD. Conditional graphic designations. Column devices

GOST 2.791-74 ESKD. Conditional graphic designations. Settling tanks and filters

GOST 2.792-74 ESKD. Conditional graphic designations. Dryers

GOST 2.793-79 ESKD. Conditional graphic designations. Elements and devices of machines and devices chemical industries. General notation

GOST 2.794-79 ESKD. Conditional graphic designations. Feeding and dosing devices

GOST 2.795-80 ESKD. Conditional graphic designations. Centrifuges

GOST 8.417-81 GSI. Units of physical quantities

GOST 21.101-93 SPDS. Basic requirements for working documentation

GOST 21.110-95 SPDS. Rules for the implementation of the specification of equipment, products and materials

GOST 21.401-88 SPDS. Production technology. Basic requirements for working drawings

GOST 21.404-85 SPDS. Automation of technological processes. Conventional designations of devices and automation equipment in diagrams

GOST 21.614-88 SPDS. Images of conditional graphic electrical equipment and wiring on the plans

GOST 34.201-89 Information technology. Set of standards for automated systems. Types, completeness and designation of documents during creation automated systems

GOST 14202-69 Pipelines industrial enterprises. Identification painting, warning signs and labels

3 GENERAL

3.1 The working documentation of automation systems is carried out in accordance with the requirements of this standard, GOST 21.101 and other related standards of the Design Documentation System for Construction (SPDS) and unified system design documentation (ESKD).

3.2 The composition of the working documentation of automation systems includes:

Working drawings intended for the installation of technical automation equipment * (main sets of working drawings of automation systems of brands A..., given in Appendix A);

Sketch drawings general types non-standard means of automation;

Specification of equipment, products and materials (hereinafter referred to as equipment specification).

__________________

* Technical means of automation include devices, regulators, functional blocks, actuators, regulatory bodies (hereinafter referred to as devices), as well as electrical devices, panels, panels, complexes, and other automation equipment

3.3 Simultaneously with the working documentation of automation systems, they develop technical documentation for the manufacture and supply of technical automation equipment to the construction site, including:

Questionnaires for devices;

Order cards for electric devices;

Tables of connections and wiring connections in panels and consoles *;

Documentation for ordering complexes of means of centralized control and regulation, telemechanics, computer technology, software and hardware complexes, microprocessor tools and controllers, systems and installations of pneumatic automation, etc. (hereinafter referred to as complexes of technical means **).

________________

* Perform as needed

** Performed at the request of the customer

3.4 In the drawings and diagrams, the elements of automation systems are depicted as a solid thick main line, technological equipment, communications and building structures are depicted in a simplified way - as a solid thin line.

4 MAIN SET OF DESIGN DRAWINGS OF AUTOMATION SYSTEMS

4.1 The composition of the main set of working drawings of automation systems

4.1.1 In the main set of working drawings of automation systems of brand A ... (hereinafter referred to as the main set) in general case include:

General data on working drawings;

Automation schemes;

Schematic diagrams (electrical, pneumatic);

Schemes (tables) of connections and connection of external wiring;

Drawings of the location of equipment and external wiring;

Drawings of installations of automation equipment.

4.1.2 Control objects (departments, systems, installations, units, devices) and related automation tools that are not interconnected and have the same equipment with automation systems are depicted on diagrams and location plans once, explaining with textual instructions.

4.1.3 The main set is allowed to be drawn up as independent documents with the assignment of a basic designation, the brand of the main set and the addition (through a dot) of the serial number of the document (in Arabic numerals).

Example - XXXX - XX - ATX1.1; XXXX - XX - ATX1.2 etc.

4.1.4 For objects with a small volume installation work for automation, it is allowed to combine working drawings of automation of various technological processes and engineering systems into one main set if their installation is carried out by one installation organization. The combined main set is assigned the AK brand.

4.1.5 In the case of using devices with radioisotope methods of measurement, working drawings for their installation are separated into an independent main set.

4.2 General data on working drawings

4.2.1 General data on working drawings (hereinafter referred to as general data) are performed in accordance with GOST 21.101. In this case, the specification sheet is not compiled.

4.2.2 In addition to the data specified in GOST 21.101, they include:

Table of initial data and calculation results of narrowing devices (not supplied by the industry) in form 1*;

Table of initial data and results of calculations by regulatory bodies in form 2*;

List of embedded structures, primary devices (placed on technological, sanitary and other equipment and communications) in form 3.

__________________________

* If restrictors and regulators are integral part automation systems supplied complete with equipment, these tables do not comply.

The list of embedded structures, primary devices and automation equipment includes:

Embedded structures intended for the installation of temperature measuring devices, selective devices for pressure, level, composition and quality of a substance;

Primary devices (volumetric and high-speed counters, narrowing devices, rotameters, sensors of flowmeters and concentrators);

Float and buoy sensors of level gauges and level indicators;

Control valves.

4.2.3 When drawing up the main set as separate documents, the general data include a list of documents in form 2 GOST 21.101, and in each of the subsequent documents - a list of working drawings of the document in form 1 GOST 21.101 and a link to general data.

Form 1 Initial data and results of calculations of narrowing devices

Form 2 Initial data and results of calculations by regulatory authorities

Form 3 List of embedded structures, primary devices

4.3 Automation schemes

4.3.1 Automation schemes are developed as a whole for a technological (engineering) system or part of it - a production line, a piece of equipment, an installation or a unit.

The automation scheme may be combined with the wiring diagram (installation) performed as part of the main set of the TX brand according to GOST 21.401, or with the engineering systems diagrams.

4.3.2 The automation diagram shows:

1) technological and engineering equipment and communications (pipelines, gas ducts, air ducts) of the automated object (hereinafter referred to as technological equipment);

2) technical means of automation or circuits of control, regulation and control *;

3) communication lines between individual technical means of automation or circuits (if necessary).

___________________________

* The control, regulation and control loop is a set of separate functionally connected devices that perform a specific task of monitoring, regulating, signaling, controlling, etc.

4.3.3 Technological equipment on automation diagrams is recommended to be depicted in accordance with the connection diagram adopted in the main set of the TX brand or diagrams of engineering systems. At the same time, it is allowed to simplify the images of process equipment without showing on the diagram equipment, communications and their elements that are not equipped with automation hardware and do not affect the operation of automation systems.

4.3.4 In the absence of the TX brand in the main set, the connection diagrams of the technological equipment are depicted taking into account the requirements of the following standards:

Equipment - according to GOST 2.780, GOST 2.782, GOST 2.788, GOST 2.789, GOST 2.790, GOST 2.791, GOST 2.792, GOST 2.793, GOST 2.794, GOST 2.795;

Communications depending on the transported media in accordance with Appendix 3 of GOST 14202;

Pipeline shut-off valves used in automation systems (not regulating) - according to GOST 2.785.

Conditional graphic and letter designations of devices and control and management circuits are accepted in accordance with GOST 21.404. The letter designations of the measured quantities and functional features of the devices are indicated in the upper part of the circle (oval).

Communication lines between devices and monitoring and control loops are shown on the diagrams as a solid thin line, regardless of the type of signals and the number of wires and pipes.

4.3.5 Automation schemes are performed in two ways:

1) deployed, in which the diagram shows the composition and location of the technical means of automation of each control and management loop.

2) simplified, in which the diagram shows the main functions of the monitoring and control loops (without highlighting the individual technical means of automation included in them and indicating the location).

4.3.6 Extended way of executing automation schemes

4.3.6.1 Technological equipment is depicted in the upper part of the diagram.

Devices embedded in technological communications are shown in the break of lines of the image of communications in accordance with Figure 1, installed on technological equipment (using embedded devices) are shown side by side - in accordance with Figure 2.

Picture 1

Figure 2

4.3.6.2 The remaining technical means of automation are shown by conventional graphic symbols in the rectangles located at the bottom of the diagram. Each rectangle is assigned headings corresponding to the technical means shown in them.

The first one is a rectangle, which shows off-panel devices that are not structurally related to technological equipment, with the heading "Local devices", below - rectangles that show boards and consoles, as well as complexes of technical means (if necessary).

The headings of the rectangles intended for the image of panels and consoles are taken in accordance with the names adopted in the sketch drawings of general views, for complexes of technical means - in accordance with their entry in the equipment specification.

4.3.6.3 On the automation diagram, the alphanumeric designations of the devices are indicated in the lower part of the circle (oval) or on the right side of it, the designations of electrical devices - to the right of their conventional graphic designation.

In this case, the designations of technical means are assigned according to the equipment specification and are made up of the digital designation of the corresponding circuit and the letter designation (in capital letters of the Russian alphabet) of each element included in the circuit (depending on the signal passage sequence).

With a large number of devices, it is allowed to use designations in which the first sign corresponds to the symbol of the measured value, the subsequent signs - to the ordinal number of the circuit within the measured value.

Electric devices included in the automation system (bells, sirens, signal lamps, scoreboards, electric motors, etc.) are shown on the diagram with graphic symbols in accordance with GOST 2.722, GOST 2.732, GOST 2.741 and assign them alphanumeric designations in accordance with GOST 2.710.

4.3.6.4 It is allowed to depict communication lines with a break if they are long and/or if their location is complex. Places of breaks in communication lines are numbered Arabic numerals in the order of their location in a rectangle with the heading "Devices local".

Intersection of communication lines with images of technological equipment is allowed. The intersection of communication lines with the designations of devices is not allowed.

4.3.6.5 On the communication lines indicate the limiting (maximum or minimum) operating values ​​of the measured (adjustable) quantities in accordance with GOST 8.417 or in the units of the scale of the selected device. To indicate rarefaction (vacuum) put "minus". For devices that are built directly into the process equipment and do not have communication lines with other devices, the limit values ​​\u200b\u200bof the quantities are indicated next to the designation of the devices.

4.3.6.6 Technological equipment may not be depicted on the diagram in cases where control and management points in technological shops are few (for example, in the working documentation for dispatching). In this case, in the upper part of the diagram, instead of the image of the technological equipment, a table is given according to Figure 3, in the columns of which the name of the equipment and communications is indicated.

Entrance to the hydrogenation workshop

original product

Nitrogen

Figure 3

4.3.6.7 An example of executing an automation scheme in an expanded way is given in Appendix B.

4.3.7 Simplified way to execute automation schemes

4.3.7.1 With a simplified method for implementing automation schemes, control and management loops, as well as single devices, are applied next to the image of process equipment and communications (or in their gap) according to Figures 1 and 2.

At the bottom of the diagram, it is recommended to provide a table of contours in accordance with Appendix B. In the table of contours, the numbers of the contours and the sheet number of the main set, which shows the composition of each circuit, are indicated.

4.3.7.2 The contour (regardless of the number of elements included in it) is depicted as a circle (oval) separated by a horizontal line. In the upper part of the circle, a letter designation is written that determines the measured (adjustable) parameter and the functions performed by this circuit, in the lower part - the number of the circuit. For circuits of automatic control systems, in addition, the diagram shows actuators, regulators and a communication line connecting the circuits with actuators.

The limiting operating values ​​of the measured (adjustable) quantities are indicated next to the graphic symbols of the circuits or in the additional column of the circuit table.

4.3.7.3 The composition of each circuit must be given on:

Principal (electrical, pneumatic) scheme of control, regulation and management;

External wiring diagram.

An example of a block diagram

Figure 4

4.3.7.4 When it is difficult to show the full composition of the circuit elements on the automation diagrams, a block diagram of the circuit is developed, an example of which is shown in Figure 4.

4.3.7.5 An example of executing an automation scheme in a simplified way is given in Appendix B.

4.4 Circuit diagrams

4.4.1 Depending on the purpose and the automation tools used, develop:

Principal electrical and pneumatic diagrams of control and regulation control circuits;

Principal power supply schemes.

Schematic diagrams for controlling electric drives of equipment and pipeline valves are included in the main set when they are controlled from panels and control panels of automation systems.

Schematic diagrams of control and regulation loops may not be developed if the interconnections of the instruments and apparatus included in them are simple and unambiguous and can be shown on other drawings of the main set. It is allowed to combine circuits of various functional purposes (for example, a power circuit with a control circuit) in compliance with the rules for the implementation of these circuits given below.

4.4.2 Electrical circuits are performed in accordance with GOST 2.701 and GOST 2.702. On electrical diagrams it is allowed:

Do not give the designations of the conclusions of electrical appliances, if they are given in technical documentation on boards and consoles;

Do not include qualifying symbols in the designation of elements.

4.4.3 Schemes using combined automation equipment (pneumatic and electric) are performed in accordance with GOST 2.701.

4.4.4 On circuit diagrams data on technical means are recorded in the list of elements according to GOST 2.701.

It is allowed to record equipment in groups in the list of elements according to their installation locations. Headings are assigned to these groups and indicated in the "Name" column.

Example - "Devices in place", "Control panel", etc.

4.4.5 Pneumatic diagrams of monitoring and control circuits show:

Devices that are part of the circuits;

Pneumatic command communication lines and pneumatic supply lines;

Power supply lines.

Impulse communication lines supplying measured and controlled media to sensors, measuring instruments and regulators are not shown on pneumatic diagrams.

4.4.6 Instruments (with the exception of actuators and regulatory bodies depicted in accordance with GOST 21.404) are shown in a simplified form as rectangles. This shows:

In circles located along the contour of the rectangle - designations of input and output connections of devices (fittings) for connecting command communication and power lines established in the technical documentation for the device, or on the corresponding diagram;

Inside the rectangle is the alphanumeric designation of the device.

4.4.7 The designations of the connecting fittings of the most common devices are given in Table 1.

Table 1

Nozzle designation

Purpose

Program

Output

input (variable)

To the switching relay of the compressed air regulator

The task

To the actuator

If the device has several connecting fittings of the same purpose, then a serial number is included in their designation through a hyphen.

Example - 2-1, 2-2, 2-3;

4.4.8 The designation of the device consists of a letter designation corresponding to the functional purpose of the device, and its serial number.

Example - RU1, RU2, F1, F2.

The letter designations of the most common devices and elements of pneumatic automation are taken according to table 2.

table 2

Name

Designation

Sensor

Secondary measuring instrument

VIP

Measuring mechanism showing

IM-P

Self-recording measuring mechanism

IM-S

measuring device

PS

Manual adjuster

RZ

control station

SU

Program generator

PZ

Regulating device

RU

Ratio adjuster

ENG

Buttons for switching devices and control stations:

Manual remote control

Automatic control

Program regulation

AP

Regulator included

On

Regulator disabled

Off

Amplifier

MIND

Algebraic summation device

US

Preliminary device

UP

Constant factor multiplier

uu

Signal limiter

BO

Pneumatic signaling device

PS

Pneumotableau

Fri

Switch relay

RP

Control Panel

PU

Actuating mechanism

THEM

Positioner

Control pressure gauge

MN

Air filter

Air pressure stabilizer (reducer)

SD

Shut-off valve

VN

Three-way valve

4.4.9 Control stations and individual switching devices are performed in a simplified manner, in expanded form, in the selected operating position (manual, automatic, etc.) indicating the mode for which the elements of switching devices are given.

Regulatory bodies are shown in the diagrams in cases where they are common with actuators.

4.4.10 Communication lines on pneumatic diagrams are made with solid thin lines, power lines - with dash-dotted thin lines. The arrows indicate the direction of the pneumatic signal. Compressed air supply lines, power supply lines and air discharge into the atmosphere can be applied according to Figure 5.

Figure 5

4.4.11 Pneumatic supply diagrams show:

Main and distribution manifolds;

Networks of air ducts from manifolds to pneumatic receivers;

Air pressure stabilizers and filters;

Control pressure gauges;

Shutoff valves;

Reserve and purge valves;

Air collectors (if necessary).

On the power supply diagrams, the air ducts are not numbered and the pneumatic receivers are not depicted. At the same time, at the bottom of the diagram, a table is given with the characteristics of pneumatic receivers (positional designations in accordance with the automation scheme, types, compressed air consumption, installation locations).

4.4.12 Symbols used on power circuits are accepted according to the following standards:

4.4.13 On the pneumatic supply diagrams indicate the diameters of the conditional passages of the pipes of the collectors and branches of the air ducts to the pneumatic receivers. Above the line depicting the collector, indicate the pressure, below the line - the flow of compressed air.

4.4.14 In the list of elements for pneumatic circuits, indicate:

In the column "Pos. designation" - the designation of the device according to 4.4.8;

In the column "Name" - the name of the device and its type;

In the column "Note" - the designations of the devices indicated on the automation diagrams.

An example of the implementation of the list of elements is shown in Figure 6.

Pos. designation

Name

Qty.

Note

Devices on site

D1, D2

Rotameter pneumatic RP-16 ZhUZ

2

44b, 45a

THEM

Flanged control valve

1

44d

25h37nzh

Switchboard

VIP

Pneumatic control device

1

44c

showing PKP.2

RU

Pneumatic control device proportional-integral

1

45g

PRZ.31M1

Figure 6

4.4.15 Examples of the implementation of pneumatic circuit diagrams are given in Appendices D and E.

4.5 Schemes (tables) of connections and connection of external wiring

4.5.1 General requirements

4.5.1.1 Connections and connections of external wiring are shown in the form of diagrams or tables.

4.5.1.2 Schemes of connections and connections are performed, as a rule, separately for each automated unit, the installation of which is carried out independently of the others. At the same time, the name of the block is additionally indicated in the name of the scheme.

Example - Pump block. Connection diagram of external wiring.

4.5.1.3 It is recommended to show wiring connections to devices installed directly on process equipment and communications, as well as to single off-panel (local) devices on the external wiring diagrams.

With a small amount of electrical wiring connected to technical means of automation, these connections can be shown on the connection diagram without following the connection diagram.

4.5.1.4 Wiring connections to group installations of devices, panels and consoles, complexes of technical means are recommended to be provided on independent connection diagrams.

4.5.1.5 The technical means for which electrical wiring connections are shown in the diagrams are depicted in a simplified form with external outlines or in the form of rectangles in which:

Introductory elements (for example, pressure seals, glands) - along the contour of the rectangle, they are shown with conventional graphic symbols in accordance with GOST 2.702;

Input and output elements are shown as circles (for round plug connectors) or rectangles (for example, for assemblies and terminal blocks and other elements of the corresponding form).

4.5.1.6. Designations (off-panel devices), serial number and type (connection boxes) indicate leader lines above the shelf, below the shelf - the designation and / or number of the installation sheet (Figure 7)

Figure 7

For other technical means, their name is indicated inside the rectangle, as well as:

Sheet number (document designation) of the installation drawing (for group installation);

Designation of a sketch drawing of a general view (for panels and consoles).

4.5.1.7 Designation of cores of cables and wires on the diagrams and tables of connections and connections is accepted in accordance with the circuit diagrams.

4.5.2 Rules for the execution of external wiring diagrams

4.5.2.1 In the connection diagram, in the general case, the following are given:

Primary devices and actuators installed directly on the process equipment and communications;

Off-panel devices and group installations of devices;

Shields, consoles, complexes of technical means;

External electrical and pipe wiring between all technical means of automation;

GOST 21.408-93

UDC 691:002:006:354 Zh01

INTERSTATE STANDARD

System of design documents for construction

RULES FOR THE IMPLEMENTATION OF WORKING DOCUMENTATION

AUTOMATION OF TECHNOLOGICAL PROCESSES

System of design documents for construction.

Roles of industrial process automation working documentation execution

Introduction date 1994-12-01

Foreword

1 DEVELOPED by the State Design and Design Institute "Proektmontazhavtomatika" and the Central Research and Design and Experimental Institute for Methodology, Organization, Economics and Design Automation (TsNIIproekt)

INTRODUCED by Gosstroy of Russia

2 ADOPTED by the Interstate Scientific and Technical Commission for Standardization and Technical Regulation in Construction November 10, 1993

State name

Name of the public administration body for construction

The Republic of Azerbaijan

Gosstroy of the Republic of Azerbaijan

Republic of Armenia

State Architecture of the Republic of Armenia

Republic of Belarus

Gosstroy of the Republic of Belarus

The Republic of Kazakhstan

Ministry of Construction of the Republic of Kazakhstan

Republic of Kyrgyzstan

Gosstroy of the Kyrgyz Republic

the Russian Federation

Gosstroy of Russia

The Republic of Tajikistan

Gosstroy of the Republic of Tajikistan

Ministry of Construction and Architecture of Ukraine

3 INTRODUCED IN THE FIRST

4 INTRODUCED from December 1, 1994 as the state standard of the Russian Federation by the Decree of the Gosstroy of Russia dated April 5, 1994 No. 18-26

1 AREA OF USE

This standard establishes the composition and rules for the design of working documentation for automation systems of technological processes and engineering systems (hereinafter referred to as automation systems) of designed construction objects for various purposes.

The requirements of this standard apply to the working documentation for the technical support of automated process control systems, developed in accordance with GOST 34.201.

The standard does not apply to the working documentation of automation systems for centralized power supply management.

GOST 2.701-84 ESKD. Schemes. Types and types. General performance requirements

GOST 2.702-75 ESKD. Rules for the execution of electrical circuits

GOST 2.710-81 ESKD. Alphanumeric designations in electrical circuits

GOST 2.722-69 ESKD. Conditional graphic designations in schemes. Electrical machines

GOST 2.732-68 ESKD. Conditional graphic designations in schemes. Sources of light

GOST 2.741-68 ESKD. Conditional graphic designations in schemes. Acoustic devices

GOST 2.780-68 ESKD. Conditional graphic designations in schemes. Elements of hydraulic and pneumatic networks

GOST 2.781-68 ESKD. Conditional graphic designations in schemes. Hydraulic and pneumatic guiding and regulating devices, control and measuring instruments

GOST 2.782-68 ESKD. Conditional graphic designations. Pumps and motors hydraulic and pneumatic

GOST 2.784-70 ESKD. Conditional graphic designations. Piping elements

GOST 2.785-70 ESKD. Conditional graphic designations. Pipe fittings

GOST 2.788-74 ESKD. Conditional graphic designations. Evaporators

GOST 2.789-74 ESKD. Conditional graphic designations. Heat exchangers

GOST 2.790-74 ESKD. Conditional graphic designations. Column devices

GOST 2.791-74 ESKD. Conditional graphic designations. Settling tanks and filters

GOST 2.792-74 ESKD. Conditional graphic designations. Dryers

GOST 2.793-79 ESKD. Conditional graphic designations. Elements and devices of machines and apparatuses for chemical production. General notation

GOST 2.794-79 ESKD. Conditional graphic designations. Feeding and dosing devices

GOST 2.795-80 ESKD. Conditional graphic designations. Centrifuges

GOST 8.417-81 GSI. Units of physical quantities

GOST 21.101-93 SPDS. Basic requirements for working documentation

GOST 21.110-95 SPDS. Rules for the implementation of the specification of equipment, products and materials

GOST 21.401-88 SPDS. Production technology. Basic requirements for working drawings

GOST 21.404-85 SPDS. Automation of technological processes. Conventional designations of devices and automation equipment in diagrams

GOST 21.614-88 SPDS. Images of conditional graphic electrical equipment and wiring on the plans

GOST 34.201-89 Information technology. Set of standards for automated systems. Types, completeness and designation of documents when creating automated systems

GOST 14202-69 Pipelines of industrial enterprises. Identification painting, warning signs and labels

3 GENERAL

3.1 The working documentation of automation systems is carried out in accordance with the requirements of this standard, GOST 21.101 and other related standards of the Design Documentation System for Construction (SPDS) and the Unified Design Documentation System (ESKD).

3.2 The composition of the working documentation of automation systems includes:

Working drawings intended for the installation of technical automation equipment * (main sets of working drawings of automation systems of brands A..., given in Appendix A);

Sketch drawings of general views of non-standard automation equipment;

Specification of equipment, products and materials (hereinafter referred to as equipment specification).

__________________

* Technical means of automation include devices, regulators, functional blocks, actuators, regulatory bodies (hereinafter referred to as devices), as well as electrical devices, panels, panels, complexes, and other automation equipment

3.3 Simultaneously with the working documentation of automation systems, they develop technical documentation for the manufacture and supply of technical automation equipment to the construction site, including:

Questionnaires for devices;

Order cards for electric devices;

Tables of connections and wiring connections in panels and consoles *;

Documentation for ordering complexes of means of centralized control and regulation, telemechanics, computer technology, software and hardware complexes, microprocessor tools and controllers, systems and installations of pneumatic automation, etc. (hereinafter referred to as complexes of technical means **).

________________

* Perform as needed

** Performed at the request of the customer

(full version of the document in the attached file)

This manual (PM) contains guidelines on the design of automation schemes and block diagrams of control and management circuits included in the working documentation of automation systems (SA) according to the recommendations of GOST 21.408 and RM 4-59. These recommendations are also applicable in the development of these schemes at the "project (working draft)" stage, as well as for automation schemes and block diagrams of monitoring and control loops in the development of documentation for the technical support of automated process control systems (APCS) in accordance with GOST 34.201. When developing the RM, the requirements and recommendations of the standards approved after the release of GOST 21.408 were also taken into account. Guidelines for the development of SA objects that are subject to the requirements of SNiP 3.05.07 and GOST 21.408. (Refined list of objects - see RM 4-59, Appendix 2). For other objects, this manual is used to the extent that it does not contradict special requirements. normative documents for the creation of SA of these objects

AUTOMATION SYSTEMS

AUTOMATION SCHEMES

INSTRUCTIONS FOR IMPLEMENTATION

P special to GOST 21.408-93

RM4-2-96

State Enterprise "Proektmontazhavtomatika"

1996

Date of introduction 01.09.96

This manual (RM) contains guidelines for the design of automation circuits and block diagrams of control and management circuits included in the working documentation of automation systems (SA) according to the recommendations of GOST 21.408 and RM4-59. These recommendations are also applicable in the development of these schemes at the "project (working draft)" stage, as well as automation schemes and block diagrams of monitoring and control loops in the development of documentation for the technical support of automated process control systems (APCS) in accordance with GOST 34.201. When developing the RM, the requirements and recommendations of the standards approved after the release of GOST 21.408 were also taken into account.

The recommendations of the manual are used in the development of SA objects that are subject to the requirements of SNiP 3.05.07 and GOST 21.408. (Refined list of objects - see PM4-59, Appendix 2). For other objects, this manual is used to the extent that it does not contradict the special requirements of regulatory documents for the creation of SA of these objects.

one . MAIN PROVISIONS

1.1. The automation scheme is the main technical document that defines the structure (hierarchy) of control and management points, the functions of the control and management systems of the automated object, equipping the SA with technical means: automation devices and means, shields, consoles, computer equipment, etc.

Automation schemes are included in the main set of working documentation of brand A ... according to GOST 21.408 of the stage "working documentation". On their basis, the rest of the documentation of this stage is developed.

When developing schemes using CAD tools, the recommendations of clause 3.1.13 of RM4-59 should be followed.

1.8. All examples of automation schemes given in this PM cannot serve as models for determining the scope of automation of technological processes and the composition of control and management loops. They are given only to illustrate the methods of designing schemes and cannot serve as reference data.

2. GENERAL RULES FOR THE IMPLEMENTATION OF AUTOMATION SCHEMES

In all cases of developing a scheme for a part of the TOU, an assessment is made of the possibility of subsequent application of these schemes in other sets of working documentation and (if necessary) they are released according to the recommendations of PM4-59, clause 2.12.

2.2. The automation diagram shows:

1) a diagram of the technological process of the automation object - equipment and communications of the automated object (TOU);

2) automation systems - control, automatic regulation and control circuits and their technical means. In this case, the monitoring, regulation and control loop is understood as a set of separate functionally related or independent devices and other technical means that perform a specific task of monitoring, regulating, signaling, managing, etc.;

3) communication lines between individual technical means of automation in circuits or between circuits (if necessary);

4) the necessary explanations (tables of symbols, applicability; links to diagrams and drawings of adjacent sets of taxiways, about the applicability of repeating elements of the diagram, etc.

2.3. Control systems for electric drives of equipment that are not connected with the control loops and automatic control of the physical and chemical parameters of the TOU, as a rule, are not shown on automation diagrams.

2.4. Automation schemes are performed in two ways:

1) deployed, in which the diagram shows the composition and location of the technical means of automation of each control and management circuit;

2) simplified, in which the diagram shows the main functions of the monitoring and control loops (without highlighting the individual technical means of automation included in them and indicating the location).

depict on the diagram that equipment and communications that equip one circuit (or interconnected circuits) with automation tools, but the image of which in the technological (engineering) working documentation is given in different diagrams and drawings or in different basic sets.

Example: for TOU of a boiler plant, it is recommended to provide a thermal scheme of the installation in accordance with GOST 21.606 and depict on it: air ducts and gas ducts based on the equipment location drawings, as well as gas pipelines according to the drawings of the main set of the GSV brand (according to GOST 21.609);

to simplify the image of the equipment, not showing the equipment (in its entirety or its separate parts), communications and their elements that are not equipped with technical means of automation and do not affect the operation of the SA on the diagram.

Example: steam traps, silencers in plumbing systems, sumps, safety devices.

Equipment - according to GOST 2.790, GOST 2.791, GOST 2.792, GOST 2.793, GOST 2.794, GOST 2.795, GOST 21.205;

Communications depending on the transported media in accordance with Appendix 3 of GOST 14202;

Intersections of pipeline communications - according to GOST 21.206;

Pipeline shut-off valves used in automation systems (not regulating) - according to GOST 21.205.

If necessary, images of views, sections and sections of equipment are performed in accordance with GOST 2.305, hatching - in accordance with GOST 2.306.

2.5.3. Next to the image of technological equipment, explanatory inscriptions should be given (either the name of the equipment, or their positions, if any, on the technological scheme).

Picture 1

2.8. Control objects of the same type (departments, systems, installations, units, devices) that are not interconnected and have the same equipment with automation systems, the technical means of automation related to them are depicted in the diagrams once.

The diagrams provide explanations.

Example. “The diagram was drawn up for unit 1; for units 2 - 5, the schemes are similar.

When executing an automation scheme on several sheets or when developing automation schemes for parts of technological systems, corresponding links are given on interconnected schemes (or its subsequent sheets).

Example. “Compressor automation diagram see 16315-АХТ-015” or “Reactor automation diagram see sheet 2”.

2.9. On the automation diagram (on the first sheet, if the diagram is made on several sheets), explanations are given on the basis of which document it was developed.

Example. “The automation scheme was developed on the basis of scheme 34652-TX ... VNIIVProekt.

symbols of technological communications;

symbols of instruments and automation equipment that cannot be depicted according to current standards;

alphanumeric abbreviations adopted for symbols of individual blocks or devices (or functions performed by them) of aggregated complexes, computers, telemechanics kits (points), etc.;

reserve letter designations used to designate controlled quantities or functional features of devices that are absent in GOST 21.404.

Note. The use of the letter N to designate launch equipment in accordance with GOST 21.404 can be omitted.

Figure 3

3.1.4. The remaining technical means of automation are shown by conventional graphic symbols in the rectangles located at the bottom of the diagram (below the TOU image). Each rectangle is assigned titles according to the guidelines below.

The first one is a rectangle, which shows off-board devices that are not structurally related to technological equipment with the heading “Local devices”, below - rectangles that show boards and consoles, as well as complexes of technical means (if necessary).

The headings of the rectangles intended for the image of panels and consoles are indicated in accordance with the names adopted in the sketch drawings of general views, for complexes of technical means - in accordance with their entry in the equipment specification.

The devices used for control (regulation) are of the same type, the controlled parameters have different values; at the same time, all devices should be shown on the board. Explanations are given near the communication lines connecting devices and automation equipment with a controlled object (without the technological equipment shown). Example. "From Reactors 2 - 3"(picture ).

(controlled parameters have the same values)

Rice. 4

An example of the implementation of an automation scheme for the same type of technological objects with devices installed on a common switchboard (controlled parameters have different values)

Rice. five

3.1.7. When using a multi-point device to control a parameter in several devices of the same type, only one technological device and one sensor are shown on the diagram, and communication lines from other sensors are shown near the device (Figure).

An example of an image on a temperature measurement automation diagram in several similar devices using a multipoint device

Rice. 6

An example of the implementation of the automation scheme using the pneumatic complex "Nominal"

Rice. 7

An example of an implementation of an automation scheme using an electronic computer (the technological part of the circuit is conditionally not shown)

Example. TI - telemetry, TS - telesignaling, TU - telecontrol, etc.

All accepted symbols must be deciphered on the diagram.

blockages with their small volume (no more than 3 - 4 x) should be shown in the form of communication lines between the contact devices of devices and equipment drives (or between interconnected drives) in case of their unambiguous effect;

in multi-mode control of electric drives with a large number of interdependencies - do not represent interlocks between different equipment, the switching on and off of which is carried out according to various interdependencies in the same mode or in different modes for several (more than 3 - 4) parameters or with a complex combination of switching on and off interconnected equipment. In this case, give indications for the designations of circuit diagrams, in which they reflect all the locks and modes;

bring to the field of the automation scheme (or its subsequent sheets) schemes (tables) of blocking dependencies;

depict control systems according to the rules for depicting aggregated complexes, computer facilities, telemechanics (see paragraphs;).

3.1.11. When the image of a shield or a complex of technical means is located on only one sheet, the rectangle of the shield on the right is closed by a line. If necessary, their images on subsequent sheets of one diagram or subsequent automation diagrams of the image of these rectangles are not closed on the right side. In this place make the appropriate inscription.

Example: When the image of the shield is located on three sheets, the inscription is made on the first sheet: “Sheet 2”, on the second sheet - “Sheet 3”, on the third sheet the rectangle of the shield is closed with a line.

Similar inscriptions are made on interconnected automation schemes that have common control points. In this case, instead of the sheet number, write the designation of the subsequent scheme. The name of the shield, located on the left on sheets 2 and 3 or subsequent diagrams, is performed in the same way as on sheet 1.

3.1.12. When developing complex multi-level automation systems in the working documentation using different equipment at each level (for example, project-combined complexes for local information and control systems at the lower or middle level of management and PC - at the upper) it is recommended to additionally develop structural diagrams of the complex of technical means (CTS). The content of the scheme of the structural CTS is accepted according to RD 50-34.698, an example of the implementation of the scheme is given in the appendix.

3.1.13. When developing design and estimate documentation automation systems for facilities designed using units or units of aggregated equipment, the following instructions must be additionally taken into account:

3.1.13.1. Instruments and automation equipment located on the equipment block are depicted on the block diagram (automation diagram, combined diagram with the block equipment). The communication lines from the devices on the block are displayed on the image of the contour (border) of the block.

Such schemes can be developed both in the design documentation of the block, and are provided in the main sets of working drawings of the corresponding TOU of technological or engineering grades, and also developed as a task (part of the task) for the manufacture of the block.

3.1.13.2. The blocks on the automation diagram of the TOU are depicted as a rectangle, to which lines are drawn, indicating technological communications connected to the block (figure). Inside the rectangle there are inscriptions indicating the name and type of the block, as well as the designation of the automation scheme from the design documentation of the block or the block diagram from the technological (engineering) documentation.

3.1.13.3. Numbers (designations) of communication lines from devices installed on the unit are shown in the rectangle outline. The location of the numbers of communication lines in the rectangle must correspond to their location on the block diagrams. These lines are connected to images of instruments and automation equipment located at control points.

3.1.13.4. The block automation scheme is performed as a fragment technological scheme with the image of devices and automation equipment installed on the block. The rules for the image of technological equipment and communications, as well as instruments and automation tools are adopted according to this RM. Communication lines from devices included in the blocks to devices and automation equipment installed outside the block are recommended to be placed one or two base lines located (if possible) below the process equipment. The ends of the communication lines are marked with serial numbers from left to right, starting with the number 1.

An example of the implementation of an automation scheme using blocks of aggregated equipment

3.2.6. Communication lines should clearly display the functional connections of devices (elements) from the beginning of the signal (impact) to the end. If it is necessary to indicate the direction of signal transmission on communication lines, it is allowed to mow the arrows.

An example of execution on the automation diagram of the intersection of communication lines with and without connection to each other

Rice. 10

3.2.7. For complex objects with a large number of used instruments and automation equipment, when the image of continuous communication lines makes it difficult to read the circuit, it is allowed to depict them with a break (address method of depicting communication lines). The places of breaks in communication lines are numbered in Arabic numerals in the order in which they are located in a rectangle with the heading "Local devices" or "Shield ..." (Figure).

Combined execution of communication lines is allowed: continuous lines and the address method for those sections of the circuits where drawing continuous lines is difficult.

3.2.10. Extension lines with shelves, which serve to record on them a brief explanation of the functions performed by the equipment, are shown as shown in the diagram (see Appendix).

An example of the image of breaks in communication lines

Rice. eleven

3.2.11. At the ends of the communication lines passing from one sheet of the diagram to another sheet or diagram, indicate the sheet number or designation of the diagram, where the continuation of these lines is shown. Such explanations are given on each of the interconnected sheets or diagrams (see figure) .

3.3. Positional designations of devices, means of automation and electric devices.

3.3.1. The positional designations of devices and automation equipment should, as a rule, consist of two parts: a digital designation assigned to the control and management circuit, and an alphabetic designation (in capital letters of the Russian alphabet) assigned to each individual element included in the circuit in alphabetical order, depending on the sequence signal passage (from the device for obtaining information to devices for influencing the controlled process).

1) devices for control and regulation (temperature, pressure and rarefaction, flow, quantity, level, composition and quality of a substance);

2) other devices, regulators, complete devices.

3.3.6. Loops consisting of several sensors and one secondary device are assigned a reference designation containing a common digital designation and several letter designations. In this case, identical sensors should be assigned the same letter designations, different - different. The secondary device is assigned a subsequent letter designation.

3.3.7. The procedure for assigning positional designations to devices and automation equipment in the control and management loops, functioning in conjunction with the technical means of the control computer complex (UVK), is accepted in accordance with the above paragraphs.

3.3.8. It is recommended that local devices of the same type and characteristics be assigned the same reference designations, regardless of their installation location.

3.3.9. The same circuits and their elements installed on the same type of equipment are assigned the same reference designations. The same circuits and their elements installed on different types of equipment are assigned different positional designations.

For docking automation circuits with electrical circuit diagrams, on which the output device of devices and automation equipment is assigned reference designations in accordance with GOST 2.710 and PM4-105, the reference designations of devices according to the specification of equipment, products and materials are indicated in the “Note” column of the list of elements of the corresponding circuit diagram .

4 . SIMPLIFIED WAY TO PERFORM AUTOMATION SCHEMES

4.1. With a simplified method for implementing automation schemes, control and control loops are applied to them, as well as single devices, they are applied next to the image of process equipment and communications (or in their break) according to the figures and. The composition of the technical means of the circuit is given in other sheets (documents) of the main set.

At the bottom of the diagram, it is recommended to bring the contour table in accordance with the application. In the table of circuits indicate the numbers of circuits and the number of the sheet (document designation) of the main set, which shows the composition of each circuit.

4.2. The contour (regardless of the number of elements included in it) is depicted as a circle (oval) separated by a horizontal line. In the upper part of the circle, a letter designation is written that determines the measured (adjustable) parameter and the functions performed by this circuit, in the lower part - the number of the circuit. For circuits of automatic control systems, in addition, the diagram shows actuators, regulators and a communication line connecting the circuit with actuators.

The limiting operating values ​​of the measured (adjustable) quantities are indicated next to the graphic symbols of the circuits or in the additional column of the circuit table.

4.3. The composition of each circuit should be given on:

Principal (electrical, pneumatic) scheme of control, regulation and management;

External wiring diagram.

4.4. When it is difficult to give the full composition of the circuit elements on these diagrams, a block diagram of the circuit is developed, an example of which is shown in the figure.

4.5. An example of executing an automation scheme in a simplified way is given in the appendix.

An example of the image of the composition of the circuit for measuring, regulating and signaling the level on the block diagram of the KTS

Rice. 12

4.6. The circuit table, depending on the amount of automation, can be located either in the free field of the automation diagram (application), or on subsequent sheets of the A4 format diagram (figure).

Single devices are not included in the table. Contours having the same composition, which can be depicted on one document, are entered into the table once. In this case, in the column "Contour number" list the designations of these contours.

In doing so, the following rules must be observed:

1) the scheme is performed in compliance with general rules according to the image of devices, wiring, etc. according to PM4-6 h. III;

2) devices installed on boards, consoles, complexes are depicted using mounting symbols by analogy with the image of local devices;

3) for wiring combined into main streams, connections to junction boxes, shields, etc. show conditionally (without terminal clamps). Their actual connection is displayed on general scheme connections of external wiring, which show the structure of combining wiring from individual circuits into streams. An example of the image of the composition of the flow measurement circuit on the connection diagram of external wiring is shown in the figure (the type of junction box pos. 4 and cable pos. 5 is not indicated, since these data are shown on the general connection diagram of external wiring).

An example of the execution of the contour table located on subsequent sheets of the automation scheme

circuit number

circuit number

Design document designation

Limit value of the measured (adjustable) quantity

1

XXX-AXT-XX

... °C

13

XXX-AXT-XX

... m 3 /h

2

XXX-ATX-XX

... °C

14

UO4.XXX.XX

... m 3 /h

3

XXX-AXT-XX

... °C

15

XXX-AXT-XX

... m

4

XXX-AXT-XX

... °C

16

XXX-AXT-XX

... m

5

XXX-AOB-XX

... °C

17

XXX-AXT-XX

... m

6

XXX-AXT-XX

... MPa

18

XXX-AXT-XX

mg/l

7

XXX-AXT-XX

... MPa

8

XXX-AOB-XX

... MPa

9

UO4.XXX.XX

... MPa

10

UO4.XXX.XX

... MPa

11

XXX-AXT-XX

... m 3 /h

12

XXX-AXT-XX

... m 3 /h

Rice. 13

An example of the image of the composition of the flow measurement circuit on the connection diagram of external wiring


Pos. designation

Name

Qty.

Note.

1

Seamless steel pipe

2

Shut-off valve V-501 d y = 10 mm

4

3

Control cable KVVG 5 ´ 1,0

4

Junction box

5

Control cable

1) the main inscription on the documents is performed in accordance with form 3 GOST 21.101;

2) documents of reuse are assigned names by type:

ATS temperature circuit.

Electrical circuit diagram;

Flow measuring circuit.

Connection diagram of external wiring;

Level measurement and alarm circuit.

Structural scheme of KTS;

3) re-use documents are recorded in the list of reference and attached documents in accordance with GOST 21.101 (in the section "Attached documents");

4) if there are variable data in the documents for re-use (positions and types of devices, designations of elements and circuits, markings, types and lengths of wiring, etc.), they are presented in the circuit applicability table (figure).

4.14. Tables of applicability of contours are developed independently text documents subject to the following rules:

1) the name of the tables should consist of the name of the scheme of the corresponding circuit (p. ) and the words: "Table of applicability";

1) a graphical representation of the composition of the contour and its connections;

2) the form of the applicability table;

3) the main inscription in accordance with GOST 21.101 (form 1), on which it is recommended to fill in columns 4, 7, 8.

The form must be made on tracing paper by an electrographic method that ensures good, clear copies.

The development of contour schemes in this case comes down to filling in the applicability table with the necessary variable data and the remaining blank columns of the title block.

An example of the execution of the table of applicability of the flow measurement circuit

Pos. diaphragm

Pos. differential pressure gauge

valve type

Pipe

Cable

Brand

Length

Brand

Length

34a

34b

B-501; d y = 10

Trumpet 14 ´ 2

GOST 8734-75

KRVG 5 ´ 1

GOST 1508-78

35a

35b

Same

Too

Too

36a

36b

37a

37b

38a

38b

39a

39b

134a

134b

14nzh 19p

dy = 10

Trumpet 14 ´ 2

17X18H9

GOST 9941-81

KRVG 5 ´ 1

GOST 1508-781

INTERSTATE COUNCIL FOR STANDARDIZATION. METROLOGY AND CERTIFICATION

INTERSTATE COUNCIL FOR STANDARDIZATION. METROLOGY ANO CERTIFICATION

GOST 21.408 -

interstate standard

Official edition

Standartinform

Foreword

The goals, basic principles and basic procedure for work on interstate standardization are established by GOST 1.0-92 "Interstate system

standardization. Basic provisions”, and GOST 1.2-2009 “System

interstate standardization. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, application, updating and cancellation "

About the standard

1 DESIGNED BY OPEN joint stock company- Association "Montazhavto-matika"

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (ICC) (Minutes No. 44-2013 dated November 14, 2013)

Short name of the country according to MK (ISO 3166) 004 -97

MK country code (ISO 3166) 004-97

Abbreviated name of the state construction management body

Azerbaijan

Aestandard

Ministry of Economy of the Republic of Armenia

Belarus

State Standard of the Republic of Belarus

Kazakhstan

State Standard of the Republic of Kazakhstan

Kyrgyzstan

Kyrgyzstandart

Moldova-Standard

the Russian Federation

Rosstandart

Tajikistan

Taji "standard

Uzbekistan

Uzstandard

4 By order of the Federal Agency for Technical Regulation and Metrology dated December 17, 2013 No. 2293-st, the interstate standard GOST 21.408-2013 was put into effect as the national standard of the Russian Federation from January 01, 2015.

4 INSTEAD OF GOST 21.408-85

Information about changes to this standard is published in the annual information index " National Standards", and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information, notification and texts are also placed in information system general use - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet.

© Standartinform, 2014

In the Russian Federation, this standard cannot be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

INTERSTATE STANDARD

System of design documents for construction

RULES OF IMPLEMENTATION OF WORKING DOCUMENTATION OF AUTOMATION OF TECHNOLOGICAL PROCESSES

System of design documents for construction.

Rules of industrial process automation working documentation execution

Introduction date - 2015-01-01

1 area of ​​use

This standard establishes the composition and rules for the design of working documentation for automation systems for technological processes and engineering systems, buildings and structures (hereinafter referred to as automation systems) of designed construction objects for various purposes.

The requirements of this standard apply to the working documentation for the technical support of automated process control systems. developed according to GOST 34.201.

clever graphics. Feeding and dosing devices

GOST 2.795-80 Unified system for design documentation. Conditional graphic designations. Centrifuges

GOST 8.417-2002 State system ensuring the uniformity of measurements. Units

GOST 8.586.5-2005 Interstate standard State system for ensuring the uniformity of measurements Measuring the flow and quantity of liquids and gases using standard orifice devices Part 5 Methods for performing measurements GOST 21.101-97 * Design documentation system for construction. Basic requirements for design and working documentation

GOST 21.110-2012 System of design documentation for construction. Specification of equipment, products and materials

Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet. or according to the annual information index "National Standards", which is published as of January 1 of the current year, and according to the issues of the monthly index "National Standards" for the current year.

If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Terms, definitions and abbreviations

3.1 The following terms, with their respective definitions and abbreviations, are used in this standard:

3.1.1 automated process control system; APCS: A set of software and hardware designed to automate the control of process equipment at enterprises.

3.1.2 embedded structure: A part or assembly unit that is integrally embedded in building structures (channel, angle, sleeve, branch pipe, plate with sleeves, boxes with a sand gate, suspended ceiling structures, etc.). into equipment or communications (lugs, sleeves, fittings, pockets, expanders, flange connections, mating flanges, adapter pipes, etc.).

3.1.3 control, regulation and control loop: A set of separate functionally related technical means of automation that perform a specific task of monitoring, regulating, signaling, managing, etc.

3.1.4 selection device: A device (embedded structure) installed on process equipment or a pipeline and designed to supply a controlled medium to instruments or measuring transducers or to install instruments and transducers.

3.1.5 distributed control system: DCS: A process control system characterized by the construction of a distributed input/output system and decentralized data processing.

3.1.6 automatic emergency protection system; PAZ: A process control system that, in the event of a process going beyond the safe limits, takes a set of measures to protect equipment and personnel.

3.1.7 pipe wiring: A set of pipes (pipe cables), connections, connections, protective devices and fittings.

3.1.8 technical means of automation: Technical means of automation include devices, regulators, functional blocks, actuators, regulatory bodies (hereinafter referred to as devices), as well as electrical devices, panels, consoles, complexes, and other means of automation.

4 General provisions

4.1 Working documentation of automation systems is carried out in accordance with the requirements of this standard. GOST 21.101 and other related standards of the Design Documentation System for Construction (SPDS) and the Unified Design Documentation System (ESKD).

4.2 The composition of the working documentation of automation systems includes:

Working drawings intended for the production of work on the installation of technical means of automation (the main set of working drawings of automation systems). Marks of the main sets of working drawings are given in Appendix A;

Attached documents including:

Questionnaires for devices and order cards for electrical devices, filled out according to the forms and instructions of manufacturers or suppliers. Questionnaires, order cards are transferred to the customer according to the statement separately from the rest of the working documentation of automation systems (SA);

Specification of equipment, products and materials:

Sketch drawings of general views of non-standard automation equipment;

Local estimate.

4.3 In the drawings, the elements of automation systems are depicted in accordance with GOST 21.208, process equipment, communications and building structures are depicted in a simplified way - as a solid thin line.

5 Main set of working drawings of automation systems

5.1 The composition of the main set of working drawings of automation systems

5.1.1 8 the composition of the main set of working drawings of automation systems of brand A ... (hereinafter referred to as the main set) generally includes:

General data on working drawings;

Automation schemes;

Principal (electric, pneumatic) schemes;

Schemes (tables) of connections and connection of external wiring;

Drawings of the location of equipment and external wiring;

Drawings of installations of automation equipment.

5.1.2 The composition of the developed documents and their completeness for the automated process control system and its parts must be determined in the terms of reference for the creation of an automated system (subsystem).

5.1.3 Control objects (departments, systems, installations, units, devices) and related automation tools that are not interconnected and have the same equipment of the SA. depicted on diagrams and layout plans once, explaining with textual indications.

5.1.4 The main set is allowed to be drawn up as independent documents with the assignment of a basic designation, the brand of the main set and the addition (through a dot) of the serial number of the document (in Arabic numerals).

It is allowed to assign designations to the documents included in the set in accordance with the coding system adopted in the organization.

Example - XXXX -XX - ATX1.1; XXXX -XX -ATX1.2 etc.

5.1.5 For objects with a small amount of installation work on automation, it is allowed to combine working drawings of automation of various technological processes and engineering systems into one main set. The combined main set is assigned the AK brand.

5.1.6 In the case of using devices with radioisotope methods of measurement, working drawings for their installation are separated into an independent main set.

5.1.7 Types, completeness and designation of documents when creating automated systems - in accordance with GOST 34.201.

5.2 General data on working drawings

5.2.2 In addition to the data specified in GOST 21.101, they include:

Table of initial data and calculation results of narrowing devices (not supplied by the industry) in form 1*;

Form 1 - Initial data and results of calculations of narrowing devices

ending form 1

‘If the narrowing devices are an integral part of the automation systems supplied with the equipment, the specified table is not followed.

Table of initial data and results of calculations by regulatory bodies in form 2*;

Form 2 - Initial data and results of calculations by regulatory authorities

List of embedded structures, primary devices (placed on technological, sanitary and other equipment and communications) in form 3. The list of embedded structures, primary devices and automation equipment includes:

Embedded structures intended for the installation of temperature measuring devices, selective devices for pressure, level, composition and quality of a substance;

Primary devices (volumetric and high-speed counters, narrowing devices, rotameters, sensors of flowmeters and concentrators);

Float and buoy sensors of level gauges and level indicators;

Control valves.

* If the regulatory bodies are an integral part of the automation systems supplied with the equipment, the specified table is not followed.

Form 3 - List of embedded structures, primary devices

Notes

2 Drawings of embedded structures and device installation drawings are included in the attached documents of working drawings of the corresponding grade in accordance with GOST 21.101.

List of embedded structures, devices and structures for laying pipe and electrical wiring and installation of technical automation equipment according to form 4. The list includes: embedded structures for installing cable structures and passages of pipe and electrical wiring through walls and ceilings, structures for installing devices, actuators , boards, cable channels, overpasses for pipe and electrical wiring, rooms for accommodating boards and control points, analyzer and other rooms for accommodating automation equipment, indicating the required climatic conditions.

5.2.3 When drawing up the main set of working drawings as separate documents, instead of working drawings of the main set, the list of documents in accordance with Form 2 GOST 21.101 is included in the general data. and in each of the subsequent documents of the main set, statements of working drawings of the document are given in form 1 GOST 21.101 and a link to general data.

5.2.4 The general instructions give:

Information about the special characteristics of industrial safety of the facility being designed;

Information about the classes and boundaries of explosive and fire hazardous zones in rooms and outdoor installations, about categories and groups of explosive mixtures.

5.3 Automation schemes

5.3.1 Automation schemes are developed as a whole for a technological (engineering) system or part of it - a production line, a unit of equipment, an installation or a unit.

It is allowed to combine the automation scheme with the wiring diagram (installation) performed as part of the main set of the TX brand according to GOST 21.401, or with the engineering systems diagrams - the automation circuit diagram.

5.3.2 The automation diagram shows:

Technological and engineering equipment and communications (pipelines, gas ducts, air ducts) of the automated object (hereinafter referred to as technological equipment);

Technical means of automation or circuits of control, regulation and management;

Communication lines between individual technical means of automation or circuits (if necessary). Communication lines between devices and control loops and

control, including wireless communication lines, are depicted on the diagrams by the conventional graphic symbols given in Table B.1 (Appendix B).

5.3.3 Technological equipment on automation diagrams is recommended to be depicted in accordance with the connection diagram adopted in the main set of the TX brand or diagrams of engineering systems. At the same time, it is allowed to simplify the images of process equipment without showing on the diagram equipment, communications and their elements that are not equipped with automation hardware and do not affect the operation of automation systems.

5.3.4 Technological equipment is depicted taking into account the requirements of the following standards:

Equipment - according to GOST 2.780. GOST 2.782. GOST 2.788, GOST 2.789, GOST 2.790, GOST 2.791. GOST 2.792. GOST 2.793, GOST 2.794, GOST 2.795;

Pipeline shut-off valves used in automation systems (not regulating) - according to GOST 2.785.

Conditional graphic and alphabetic designations of devices and control and management circuits are accepted in accordance with GOST 21.208. The letter designations of the measured quantities and functional features of the devices are indicated in the upper part of the conditional graphic designation.

5.3.5 Automation schemes are performed in two ways:

Expanded, in which the diagram shows the composition and location of the technical means of automation of each control and management circuit;

Simplified, in which the diagram shows the main functions of the monitoring and control loops (without highlighting the individual technical means of automation included in them and indicating the location).

5.3.6 Extended way of executing automation schemes

5.3.6.1 Technological equipment is depicted in the upper part of the diagram.

The conditional graphic designation of devices embedded in technological communications is shown in the break of lines of the image of communications in accordance with Figure 1, and those installed on process equipment (using embedded devices) are shown next to each other in accordance with Figure 2. Symbolic graphic designation of devices in accordance with GOST 21.208.

Figure 2

5.3.6.2 The remaining technical means of automation are shown by conventional graphic symbols in the rectangles located at the bottom of the diagram. Each rectangle is assigned headings corresponding to the technical means shown in them.

The first one is a rectangle showing off-panel devices that are not structurally related to the process equipment, with the heading "Local devices", below - rectangles that show boards and consoles, as well as, if necessary, complexes of technical means, for example, a controller board, [ drawings B.Za, B.36 (Appendix B)], shield of the PAZ system.

The headings of the rectangles intended for the image of panels and consoles are taken in accordance with the names adopted in the sketch drawings of general views, for complexes of technical means - in accordance with their entry in the specification of equipment, products and materials.

5.3.6.3 On the automation diagram, the alphanumeric designations of the devices are indicated in the lower part of the circle (square, rectangle) or on the right side of it, the designations of electrical devices - to the right of their conventional graphic designation.

In this case, the designations of technical means are assigned according to the specification of equipment, products and materials and are made up of the digital designation of the corresponding circuit and the letter designation (in capital letters) of each element included in the circuit (depending on the signal passage sequence).

With a large number of devices, it is allowed to use designations in which the first sign corresponds to the symbol of the measured value, the subsequent signs - to the ordinal number of the circuit within the measured value.

Electric devices included in the automation system (bells, sirens, signal lamps, scoreboards, electric motors, etc.) are shown on the diagram with graphic conditional

designations according to GOST 2.722. GOST 2.732, GOST 2.741 and assign them alphanumeric designations in accordance with GOST 2.710.

5.3.6.4 Communication lines may be depicted with a break if they are long and/or if they are in a complex location. The places of breaks in communication lines are numbered with Arabic numerals in the order of their location in a rectangle with the heading "Local devices".

Intersection of communication lines with images of technological equipment is allowed. The intersection of communication lines with the designations of devices is not allowed.

5.3.6.5 The communication lines indicate the limiting (maximum or minimum) operating values ​​of the measured (adjustable) quantities in accordance with GOST 8.417 or in the units of the scale of the selected instrument. To indicate rarefaction (vacuum), put a minus sign in front of the value of the measured (adjustable) quantities. For devices that are built directly into the process equipment and do not have communication lines with other devices, the limit values ​​\u200b\u200bof the quantities are indicated next to the designation of the devices.

5.3.6.6 Technological equipment may not be depicted on the diagram in cases where control and management points in technological shops are few (for example, in the working documentation for dispatching). In this case, in the upper part of the diagram, instead of the image of the technological equipment, a table is given according to Figure 3, in the columns of which the name of the equipment and communications is indicated.

Entrance to the hydrogenation shop_

original product | Nitrogen

Figure 3

5.3.6.7 An example of the implementation of an automation scheme in an expanded way is shown in Figure B.1 (Appendix B).

5.3.7 Simplified way to execute automation schemes

5.3.7.1 An example of executing an automation scheme in a simplified way is shown in Figure B.2 (Appendix B).

5.3.7.2 With a simplified method for implementing automation schemes, control and management loops, as well as single devices, are applied next to the image of process equipment and communications (or in their gap) according to Figures 1 and 2.

The contour table indicates the contour numbers and the sheet number of the main set. which shows the composition of each circuit.

5.3.7.3 The contour (regardless of the number of elements included in it) is depicted as a circle (rectangle) separated by a horizontal line. In the upper part of the circle, a letter designation is written that determines the measured (adjustable) parameter, and the functions performed by this circuit, in the lower part - the number of the circuit. For circuits of automatic control systems, in addition, the diagram shows actuators, regulators and a communication line connecting the circuits with actuators.

The limiting operating values ​​of the measured (adjustable) quantities are indicated next to the graphic symbols of the circuits or in the additional column of the circuit table.

5.3.7.4 The composition of each circuit must be given on:

Principal (electrical, pneumatic) scheme of control, regulation and control:

External wiring diagram.

5.3.7.5 When it is difficult to show the full composition of the circuit elements on the automation diagrams, a block diagram of the circuit is developed, an example of which is shown in Figure D.1 (Appendix D).

5.4 Circuit diagrams

5.4.1 Depending on the purpose and the automation tools used, develop:

Principal electrical and pneumatic diagrams of control and regulation control circuits;

Schematic diagrams of electrical and pneumatic power supply..

Principal electrical circuits of control and management include

the main set when they are controlled from panels and panels of automation systems.

Schematic diagrams of control and regulation loops may not be developed if the interconnections of the instruments and apparatus included in them. are simple and unambiguous and can be shown on other drawings of the main set. Allowed

combination of circuits of various functional purposes (for example, a power circuit with a control circuit) in compliance with the rules for the implementation of these circuits, given below.

5.4.2 Schematic electrical diagrams are performed in accordance with GOST 2.701 and GOST 2.702. On electrical diagrams it is allowed:

Do not give the designations of the conclusions of electrical appliances, if they are given in the technical documentation for panels and consoles;

Do not include qualifying symbols in the designation of elements.

5.4.3 Schematic diagrams using combined automation equipment (pneumatic and electric) are performed in accordance with GOST 2.701.

5.4.4 On the schematic diagrams, data on technical means are recorded in the list of elements in accordance with GOST 2.701.

It is allowed to record equipment in groups in the list of elements according to their installation locations. Headings are assigned to these groups and indicated in the "Name" column, for example. "Apparatus in place", "Control panel", etc.

5.4.5 Pneumatic circuit diagrams.

5.4.5.1 Pneumatic diagrams of monitoring and control circuits show:

Devices included in the circuits:

Pneumatic command communication lines and pneumatic supply lines;

Power supply lines.

Impulse communication lines supplying measured and controlled media to sensors, measuring instruments and regulators are not shown on pneumatic diagrams.

5.4.5.2 Devices (with the exception of actuators and regulatory bodies depicted in accordance with GOST 21.208) are shown in the form of rectangles. This shows:

In circles located along the contour of the rectangle. - designation of input and output connections of devices (fittings) for connecting command lines of communication and power, established in the technical documentation for the device, or on the corresponding diagram;

Inside the rectangle is the alphanumeric designation of the device.

5.4.5.3 The designations of the connecting fittings of the most common devices are given in Table 1.

Table 1

If the device has several connecting fittings of the same purpose, then a serial number is included in their designation through a hyphen.

Example - 2-1, 2-2, 2-3.

5.4.5.4 The designation of the device consists of a letter designation corresponding to the functional purpose of the device, and its serial number.

Example - RU1, RU2, F1, F2.

The letter designations of the most common devices and elements of pneumatic automation are taken in accordance with Appendix D.

5.4.5.5 Control stations and individual switching devices are performed in a simplified manner, in expanded form, in the selected operating position (manual, automatic, etc.) indicating the mode for which the elements of switching devices are given.

Regulatory bodies are shown on the pneumatic circuit diagrams in cases where they are common with actuators.

5.4.5.6 Communication lines are made with solid thin lines. The arrows indicate the direction of the pneumatic signal

5.4.5.7 On the principle pneumatic power supply diagrams show:

Main and distribution manifolds;

Networks of air ducts from manifolds to pneumatic receivers;

Air pressure stabilizers and filters:

Control pressure gauges;

Shutoff valves;

Reserve and purge valves;

Air collectors (if necessary).

Air ducts are not numbered and pneumatic receivers are not depicted on the principle pneumatic power supply diagrams. At the same time, at the bottom of the diagram, a table is given with the characteristics of pneumatic receivers (positional designations in accordance with the automation scheme, types, compressed air consumption, installation locations).

5.4.5.8 Symbols used on power circuits, when

accepted according to the following standards:

Air filters ................................................ according to GOST 2.793;

Air pressure stabilizers ........................ according to GOST 2.785;

Shut-off valves, three-way cocks ............. according to GOST 2.785;

Control pressure gauges ................................ according to GOST 2.781;

Compressed air pipelines ........................ according to GOST 2.784.

5.4.5.9 The schematic diagrams of the pneumatic supply indicate the diameters of the conditional passages of the pipes of the collectors and branches of the air ducts to the pneumatic receivers. Above the line depicting the collector, indicate the pressure, below the line - the flow of compressed air.

Examples of the implementation of fundamental pneumatic diagrams are shown in Figures E.1, E.2 (Appendix E).

5.4.5.10 In the list of elements for pneumatic circuits, indicate:

In the column "Pos. designation” - device designation;

In the column "Name" - the name of the device and its type;

In the column "Note" - the designations of the devices indicated on the automation diagrams.

An example of the implementation of the list of elements is given in Table G.1 (Appendix G)

5.5 Functional diagrams of process control systems, block diagrams and others (in accordance with the terms of reference for the development of process control systems)