Process diagrams for power plants

ISO 14084-2:2015 specifies graphical symbols for process diagrams for power plants and guidelines for creation of new graphical symbol examples. ISO 14084-2:2015 is a collective application standard of the ISO 14617‑series. Graphical symbols for fluid power diagrams can be found in ISO 1219‑1. Graphical symbols for electrotechnical diagrams can be found in IEC 60617.

Schémas de procédés pour centrales électriques

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Status
Published
Publication Date
07-Apr-2015
Current Stage
9093 - International Standard confirmed
Start Date
25-Sep-2020
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ISO 14084-2:2015 - Process diagrams for power plants
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INTERNATIONAL ISO
STANDARD 14084-2
First edition
2015-04-01
Process diagrams for power plants —
Part 2:
Graphical symbols
Schémas de procédés pour centrales électriques —
Partie 2: Symboles graphiques
Reference number
ISO 14084-2:2015(E)
ISO 2015
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ISO 14084-2:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

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Published in Switzerland
ii © ISO 2015 – All rights reserved
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ISO 14084-2:2015(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................vi

Introduction ..............................................................................................................................................................................................................................vii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Graphical symbols ............................................................................................................................................................................................... 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Size of graphical symbols ............................................................................................................................................................... 1

4.3 Creation of new symbol examples ......................................................................................................................................... 2

4.4 Symbols for large/complex objects ....................................................................................................................................... 2

5 Structuring and representation ............................................................................................................................................................ 2

5.1 Overall structure .................................................................................................................................................................................... 2

5.2 Registration numbers ....................................................................................................................................................................... 2

5.3 Representation of graphical symbols in the standard .......................................................................................... 3

5.4 Legend to table representation ......... ........................................................................................................................................ 3

6 Connections and related devices ......................................................................................................................................................... 4

6.1 Fluid connections .................................................................................................................................................................................. 4

6.1.1 Functional connections .............................................................................................................................................. 4

6.1.2 Connections with indication of process media ...................................................................................... 4

6.1.3 Simplified representation ........................................................................................................................................ 5

6.1.4 Symbols for direction, branching, crossing, etc..................................................................................... 5

6.1.5 Pipeline joints, couplings, etc................................................................................................................................ 6

6.1.6 Accessories for connections ................................................................................................................................... 6

6.1.7 Pipeline components .................................................................................................................................................... 7

6.1.8 Pipeline insulation, tracing, etc. .......................................................................................................................... 8

6.2 Mechanical connections .................................................................................................................................................................. 9

7 Fluid flow control ................................................................................................................................................................................................. 9

7.1 Valves ............................................................................................................................................................................................................... 9

7.1.1 On-off valves ........................................................................................................................................................................ 9

7.1.2 Non-return valves ........................................................................................................................................................10

7.1.3 Control valves ..................................................................................................................................................................11

7.1.4 Safety and relief valves ............................................................................................................................................12

7.1.5 Special valves ...................................................................................................................................................................13

7.1.6 Supplementary valve symbols ..........................................................................................................................13

7.1.7 Specific valve features ..............................................................................................................................................14

7.2 Dampers .....................................................................................................................................................................................................14

7.2.1 On-off dampers ..............................................................................................................................................................14

7.2.2 Non-return dampers..................................................................................................................................................15

7.2.3 Control dampers ...........................................................................................................................................................15

7.2.4 Safety dampers ...............................................................................................................................................................16

7.3 Safety devices other than valves ...........................................................................................................................................16

8 Actuators ....................................................................................................................................................................................................................16

8.1 Manual actuators ......... .......................................................................................................................................................................16

8.2 Mechanical actuators ......................................................................................................................................................................16

8.3 Automatic actuators ........................................................................................................................................................................17

8.4 Supplementary symbols ..............................................................................................................................................................17

9 Fluid transport ....................................................................................................................................................................................................18

9.1 Pumps ..........................................................................................................................................................................................................18

9.2 Fans, ventilators, blowers, compressors, etc. ............................................................................................................19

9.3 Vacuum pumps, etc. .........................................................................................................................................................................20

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ISO 14084-2:2015(E)

10 Fluid energy transfer ....................................................................................................................................................................................21

10.1 Heat exchangers ..................................................................................................................................................................................21

10.2 Energy transfer by mixing ..........................................................................................................................................................23

10.3 Cooling towers ......................................................................................................................................................................................23

11 Fluid processing .................................................................................................................................................................................................24

11.1 Separation ................................................................................................................................................................................................24

11.1.1 Separation, general .....................................................................................................................................................24

11.1.2 Separation of suspended substances in liquids .................................................................................25

11.1.3 Separation of suspended substances in gasses ..................................................................................27

11.2 Processing of fluids by adsorption, catalysis, conversion, thermic, etc. .............................................28

11.2.1 Liquids ...................................................................................................................................................................................28

11.2.2 Gasses .....................................................................................................................................................................................29

11.3 Mixing ..........................................................................................................................................................................................................30

11.3.1 General...................................................................................................................................................................................30

11.3.2 Devices for mixing .......................................................................................................................................................30

12 Storage .........................................................................................................................................................................................................................31

12.1 Permanent storage ...........................................................................................................................................................................31

12.2 Storage devices, surface indications, etc. ......................................................................................................................32

12.3 Mobile storage devices ..................................................................................................................................................................33

12.4 Energy storage, expansion devices .....................................................................................................................................33

13 Material transport ...........................................................................................................................................................................................34

13.1 Conveyors, elevators, unloaders, etc. ................................................................................................................................34

13.2 Material flow control ......................................................................................................................................................................36

13.3 Feeders ........................................................................................................................................................................................................37

13.4 Handling equipment ........................................................................................................................................................................38

13.5 Mobile transport equipment ....................................................................................................................................................39

14 Material processing ........................................................................................................................................................................................40

14.1 Separation ................................................................................................................................................................................................40

14.2 Processing, size reduction ..........................................................................................................................................................42

14.2.1 Size reduction ..................................................................................................................................................................42

14.2.2 Coarse size reduction, crushers .......................................................................................................................42

14.2.3 Fine size reduction, mills .......................................................................................................................................42

14.2.4 Biomass processing ....................................................................................................................................................43

14.3 Humidifieing ..........................................................................................................................................................................................43

15 Thermal energy generators ...................................................................................................................................................................44

15.1 Conventional energy generators...........................................................................................................................................44

15.2 Boiler combustion / heating systems ...............................................................................................................................45

15.3 Boiler devices ........................................................................................................................................................................................45

15.4 Non-conventional energy generators ...............................................................................................................................46

15.5 Thermal energy consumers ......................................................................................................................................................47

16 Machines, engines ............................................................................................................................................................................................47

16.1 Steam turbines, steam engines ..............................................................................................................................................47

16.2 Combustion engines, gas turbines ......................................................................................................................................47

16.3 Electrical engines, motors, generators, converters ..............................................................................................48

17 Mechanical transmission, shafts, bearings, couplings, etc. ...................................................................................48

17.1 Shafts ............................................................................................................................................................................................................48

17.2 Bearings .....................................................................................................................................................................................................48

17.3 Gears .............................................................................................................................................................................................................49

17.4 Couplings ..................................................................................................................................................................................................49

17.5 Brakes ..........................................................................................................................................................................................................50

17.6 Transmissions devices...................................................................................................................................................................50

18 Instrumentation, measurement and control .......................................................................................................................50

18.1 Process control information (PCI) ......................................................................................................................................50

18.2 Measurement devices, sensors, etc. ...................................................................................................................................51

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ISO 14084-2:2015(E)

18.2.1 Sensors general, etc. ...................................................................................................................................................51

18.2.2 Temperature .....................................................................................................................................................................51

18.2.3 Level .........................................................................................................................................................................................52

18.2.4 Weight ....................................................................................................................................................................................52

18.2.5 Flow ........................................................................................................................................... ...............................................52

18.2.6 Speed, vibrations, etc. ...............................................................................................................................................53

18.2.7 Length, position displacement, etc. ..............................................................................................................54

18.3 Signals ..........................................................................................................................................................................................................54

18.4 Miscellaneous ........................................................................................................................................................................................54

18.5 Control processing elements ...................................................................................................................................................55

Annex A (informative) Creation of new symbol examples ..........................................................................................................57

Annex B (informative) Examples of large and complex symbols .........................................................................................59

Bibliography .............................................................................................................................................................................................................................60

© ISO 2015 – All rights reserved v
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ISO 14084-2:2015(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT), see the following URL: Foreword — Supplementary information.

The committee responsible for this document is ISO/TC 10, Technical product documentation,

Subcommittee SC 10, Process plant documentation.

ISO 14084 consists of the following parts, under the general title Process diagrams for power plants:

— Part 1: Specification for diagrams
— Part 2: Graphical symbols
vi © ISO 2015 – All rights reserved
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ISO 14084-2:2015(E)
Introduction
General

This part of ISO 14084 deals with preparation of process diagrams for power plants.

ISO/TC 10/SC 10 prepares standards for diagrams including graphical symbols which together with

standards prepared by other ISO committees and IEC constitute the basis for preparation of diagrams

for process industry.

The interrelations between these standards are illustrated in Figure 1. Standards in bold are

ISO/TC 10/SC 10 standards
NOTE Standards marked * are collective application standards.

Figure 1 — Interrelations between ISO and IEC standards for diagrams for power plants

Collective application standard
ISO/TC 10/SC 10 standards:
— ISO 15519-series: Specifications for diagrams for process industry;
— ISO 14617-series: Graphical symbols for diagrams;

are basic standards, which are general and apply to all fields of applications. Technical committees

working in a specific application field are allowed to make extracts and publish them as collective

application standards of ISO 15519-series, ISO 14617-series or both.
Application fields

This International Standard applies to the power plant field, which include conventional fossil and

biomass fired power plants, hydro power plants, sea wave power plants, wind power plants, nuclear

power plants, geothermal power plants, solar power plants, osmosis power plants, incineration plants,

and industrial power plants.
© ISO 2015 – All rights reserved vii
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INTERNATIONAL STANDARD ISO 14084-2:2015(E)
Process diagrams for power plants —
Part 2:
Graphical symbols
1 Scope

This part of ISO 14084 specifies graphical symbols for process diagrams for power plants and guidelines

for creation of new graphical symbol examples.

This part of ISO 14084 is a collective application standard of the ISO 14617-series.

Graphical symbols for fluid power diagrams can be found in ISO 1219-1.
Graphical symbols for electrotechnical diagrams can be found in IEC 60617.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 10209, Technical product documentation — Vocabulary — Terms relating to technical drawings,

product definition and related documentation
ISO 14617 (all parts), Graphical symbols for diagrams
3 Terms and definitions

For the purposes of this document, the terms and definitions given in the ISO 15519-series and ISO 10209

and the following apply.
3.1
symbol example
graphical symbol created of basic and supplementary graphical symbols
4 Graphical symbols
4.1 General
Graphical symbols shall comply with ISO 14617-series.

General rules for graphical symbols are given in ISO 81714-1. Rules for CAx application of graphical

symbols are given in IEC 81714-2.

Specific rules and guidelines for graphical symbols for use in diagrams are given in ISO 15519-1.

4.2 Size of graphical symbols

Graphical symbols in this part of ISO 14084 are shown in a grid system with module M = 2,5 mm.

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ISO 14084-2:2015(E)
4.3 Creation of new symbol examples

This International Standard includes the most common used graphical symbols for diagrams for power

plants. In case a needed symbol cannot be found in this International Standard or in ISO 14617-series

then, the needed graphical symbol example should be created on basis of basic and supplementary

graphical symbols in ISO 14617 as illustrated in Annex A.

In case the needed graphical symbol neither exists in ISO 14617 nor can be created on basis of basic

and supplementary symbols in ISO 14617 then, a new graphical symbol shall be requested according to

ISO/IEC Directives, Part 1, Consolidated ISO Supplement, 2014, Annex SH.
4.4 Symbols for large/complex objects

Graphical symbols for large and complex objects like boilers, turbines, flue gas treatment plants, boiler

feed pumps, etc. a
...

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