BS ISO 21789-2009 Gas turbine applications - Safety《燃气涡轮机应用 安全性》.pdf
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1、BS ISO21789:2009ICS 27.040NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas turbineapplications SafetyThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 April2009 BSI 2009ISBN 978 0 580 54169 8Amendments/co
2、rrigenda issued since publicationDate CommentsBS ISO 21789:2009National forewordThis British Standard is the UK implementation of ISO 21789:2009.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/16/-/1, Gas turbines - Safety.A list of organizations represented on this c
3、ommittee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS ISO 21789:2009Reference num
4、berISO 21789:2009(E)ISO 2009INTERNATIONAL STANDARD ISO21789First edition2009-02-01Gas turbine applications Safety Applications des turbines gaz Scurit BS ISO 21789:2009ISO 21789:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file
5、 may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat a
6、ccepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that
7、 the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2009 All rights reserved. Unless otherwise specified, no part of this publication may b
8、e reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. +
9、41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedBS ISO 21789:2009ISO 21789:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword .vii Introductionviii 1 Scope 1 2 Normative references1 3 Terms and definiti
10、ons .4 4 List of significant hazards 5 5 Safety requirements 6 5.1 General .6 5.2 Risk assessment6 5.3 Modifications and replacement parts7 5.4 Foreseeable misuse 7 5.5 Lifetime .7 5.6 Hazard combinations 7 5.7 Noise .8 5.8 Mechanical .8 5.8.1 Guarding.8 5.8.2 Accessibility for maintenance8 5.8.3 Ca
11、sing design 9 5.8.4 Gas turbine compressor surge 9 5.8.5 Stability and handling .9 5.8.6 Overload of rotating shafts due to torque 9 5.8.7 Vibration .9 5.8.8 Mechanical failure caused by corrosion .10 5.8.9 Design methods and materials 10 5.8.10 Gas turbine temperatures.10 5.8.11 Environmental loads
12、 .10 5.8.12 Assembly features.11 5.8.13 Couplings .11 5.8.14 Rotor bearings .11 5.8.15 Rotating part failure 11 5.8.16 Foreign object damage (FOD) screen .12 5.8.17 Gearbox 12 5.8.18 Starting systems12 5.8.19 Low ambient temperature conditions .13 5.9 Gas turbine compressor air inlet system13 5.9.1
13、General .13 5.9.2 Inlet air contamination 13 5.9.3 Icing monitoring and prevention13 5.9.4 Implosion protection .14 5.9.5 Inlet explosion protection.14 5.9.6 Waste disposal through combustion 14 5.9.7 Recirculation15 5.9.8 Gas turbine compressor air inlet ducting .15 5.10 Fuel systems15 5.10.1 Gener
14、al .15 5.10.2 Fuel supply quality and supply conditions.15 5.10.3 Pressure testing.16 5.10.4 Fuel supply heating.16 5.10.5 Gas fuel systems .16 BS ISO 21789:2009ISO 21789:2009(E) iv ISO 2009 All rights reserved5.10.6 Liquid fuel systems 20 5.10.7 Multi-fuel systems. 23 5.10.8 Fuel purging 23 5.10.9
15、Fuel drainage. 24 5.11 Combustion supervision 24 5.11.1 General. 24 5.11.2 Requirements for ignition 24 5.11.3 Extinction safety time. 25 5.12 Exhaust system. 25 5.12.1 Damper controls . 25 5.12.2 Flexible joint location . 25 5.12.3 Exhaust stack 25 5.12.4 Explosion protection 25 5.13 Enclosures. 26
16、 5.13.1 General. 26 5.13.2 Enclosure structure 26 5.13.3 Enclosure fire precautions. 27 5.13.4 Explosion prevention and protection Area classification Ventilation . 27 5.13.5 Gas detection 27 5.13.6 Enclosure purging 27 5.13.7 Mist detection 27 5.13.8 Access and doors . 28 5.13.9 Entrapment 28 5.14
17、Lighting 28 5.15 Fire precautions 28 5.15.1 General. 28 5.15.2 Structural fire risk reduction . 28 5.15.3 Hydrocarbon fire risk reduction 29 5.15.4 Fire protection. 29 5.15.5 Fire detection 30 5.15.6 Fire extinguishing systems 30 5.15.7 Water mist extinguishant . 31 5.15.8 Extinguishing system contr
18、ols . 31 5.15.9 Escape 33 5.15.10 Uncontrolled release of media and loss of propellant pressure 33 5.15.11 Vessel thermal relief (burst disc) 33 5.15.12 Vessel and/or pipe failure 33 5.15.13 Release of extinguishant into gas turbine halls, control rooms, etc. . 34 5.16 Hazardous area classification
19、and explosion prevention and protection 34 5.16.1 General. 34 5.16.2 Area classification 34 5.16.3 Explosion prevention . 34 5.16.4 Ignition source control. 35 5.16.5 Reduction of explosion effects in an enclosed space 35 5.17 Ventilation 37 5.17.1 General. 37 5.17.2 Cooling. 37 5.17.3 Heating. 37 5
20、.17.4 Hazardous area control 38 5.17.5 Hot surfaces 38 5.17.6 Ventilation inlet location 38 5.17.7 Ventilation inlet filtration 38 5.17.8 Ventilation inlet ducting . 38 5.17.9 Ventilation outlet location 39 5.17.10 Flow monitoring Artificial ventilation. 39 5.18 Fans 39 5.18.1 Fan guards and structu
21、ral failure 39 5.18.2 Air blast oil coolers. 39 5.19 Flammable gas detection. 39 5.19.1 General. 39 BS ISO 21789:2009ISO 21789:2009(E) ISO 2009 All rights reserved v5.19.2 Type/selection principles39 5.19.3 Location principles40 5.19.4 Settings.40 5.19.5 Enclosures containing hot surfaces Screening
22、tool.40 5.19.6 Maintenance and calibration 40 5.20 Control and automatic protection systems 41 5.20.1 General .41 5.20.2 Environmental suitability41 5.20.3 Ergonomics41 5.20.4 Failure .41 5.20.5 Calibration41 5.20.6 Testing41 5.20.7 Speed control.42 5.20.8 Gas turbine emergency shut-down system42 5.
23、20.9 Interlocks43 5.21 Electrical.43 5.21.1 Design/Installation.43 5.21.2 Isolation and stored energy43 5.21.3 Electrostatic energy and bonding44 5.21.4 Water ingress.44 5.21.5 Lightning 44 5.21.6 Electromagnetic compatibility (EMC)44 5.21.7 Battery installations 45 5.21.8 Electrical overload.45 5.2
24、1.9 Electrical power failure .45 5.22 Drains, vents and bleeds 45 5.22.1 General .45 5.22.2 Vents for flammable gases.46 5.22.3 Toxic and hazardous emissions 46 5.22.4 Gas turbine compressor bleeds.46 5.23 Pressure equipment 47 5.23.1 General .47 5.23.2 Design.47 5.23.3 Hazards.47 5.23.4 Misuse.47 5
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