1、BS ISO 16924:2016Natural gas fuelling stations LNG stations for fuellingvehiclesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 16924:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 16924:2016.The UK participation in
2、 its preparation was entrusted to Technical Committee GSE/40, Gas supply equipment for natural gas vehicles.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users
3、 are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 80678 0 ICS 75.200 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of th
4、e Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 16924:2016 ISO 2016Natural gas fuelling stations LNG stations for fuelling vehiclesStations-service de gaz naturel Stations GNL pour le ravitaillement de vhi
5、culesINTERNATIONAL STANDARDISO16924First edition2016-12-01Reference numberISO 16924:2016(E)BS ISO 16924:2016ISO 16924:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may
6、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 ISOs member body in the country of the r
7、equester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 16924:2016ISO 16924:2016(E)Foreword vii1 Scope . 12 Normative references 13 Terms and definitions . 24 Abbreviated terms 95 Risk manag
8、ement .105.1 Risk assessment 105.1.1 General. 105.1.2 Protection against overpressure . 105.1.3 Static electricity .115.2 Fire protection 115.2.1 Hazardous area classification 115.2.2 Sources of ignition .115.2.3 Fire fighting . 125.3 Explosion protection measures . 126 General design requirements 1
9、26.1 General 126.1.1 Design philosophy .126.1.2 Buildings and civil works 136.1.3 Installation and construction . 146.2 Site layout . 156.2.1 Separation distances .156.2.2 Traffic management .156.2.3 Security . 156.2.4 Requirements for location of equipment .156.3 Environmental considerations . 166.
10、3.1 Noise attenuation .166.3.2 Prevention of venting of natural gas 167 Fuel supply to the fuelling station .167.1 Application 167.2 Equipment compatibility 167.3 Filling connector . 177.4 Requirements for filling . 177.4.1 General requirements .177.4.2 Prevention of overpressurization and overfilli
11、ng 177.5 Prevention of back flow 177.6 Bleed connections . 177.7 Draining of liquid from the LNG storage tank .187.8 LNG tanker . 187.8.1 Immobility 187.8.2 Anti-drive-away equipment 187.8.3 Turning off the engine 187.8.4 Equalizing the potentials . 188 Storage .188.1 LNG storage . 188.1.1 Design an
12、d construction 188.1.2 Safety requirements .208.1.3 Installation guidance .248.2 CNG buffer storage 259 Pumps and compressors .259.1 Connection of LNG pumps to the LNG storage tank .25 ISO 2016 All rights reserved iiiContents PageBS ISO 16924:2016ISO 16924:2016(E)9.1.1 General. 259.1.2 NPSH requirem
13、ents 259.1.3 Vapour return 259.1.4 Protection against weather 259.1.5 Accessibility 269.2 LNG centrifugal pump (including ancillaries) . 269.2.1 General provisions.269.2.2 Liquid inlet to the centrifugal pump 269.2.3 Centrifugal pump design 269.2.4 Vibration 269.2.5 Detection of shaft seal leak 279.
14、2.6 Detection of cavitation .279.3 LNG reciprocating pump for LCNG fuelling stations (including ancillaries) 279.3.1 General provisions.279.3.2 Liquid supplied to the reciprocating pump .279.3.3 Design . 279.3.4 Vibration 279.3.5 Pulsation 279.4 Commonalities for LNG centrifugal and reciprocating pu
15、mps .279.4.1 Suction line 279.4.2 Instrumentation 289.4.3 Markings of a pump 289.4.4 Instructions .289.5 Natural gas compressor . 2910 Dispensers 2910.1 LNG dispensers 2910.1.1 General requirements .2910.1.2 Breakaway system .3110.1.3 Fuelling hoses 3110.1.4 Fuelling nozzles .3210.1.5 Dispenser encl
16、osure 3210.1.6 Other requirements 3310.2 CNG dispensers 3311 Vaporizers and heaters .3411.1 Application 3411.2 Design of vaporizers and heaters . 3411.3 Ambient air vaporizer 3511.3.1 General. 3511.3.2 Defrosting . 3511.3.3 Aluminium vaporizers .3511.4 Electric vaporizer/heater . 3511.5 Water bath v
17、aporizer 3611.6 Fired vaporizers 3611.7 Remotely heated vaporizers . 3612 Odorization .3612.1 General requirements 3612.2 High-pressure odorizer 3712.3 Safety 3712.4 Monitoring . 3712.5 Odorant . 3812.6 Dynamics of function 3813 Pipework 3813.1 General 3813.2 Pipework design . 3813.2.1 General. 3813
18、.2.2 Overground pipework 39iv ISO 2016 All rights reservedBS ISO 16924:2016ISO 16924:2016(E)13.2.3 Underground pipework 3913.2.4 Pipework in ducts 3913.2.5 Flexible connections 4014 Electrical equipment and wiring 4014.1 General 4014.2 Main considerations 4014.2.1 Grounding . 4014.2.2 Lightning 4014
19、.2.3 Contact with live parts .4014.2.4 Cables 4014.2.5 Static electricity .4114.3 Other considerations 4114.3.1 Interface . 4114.3.2 Primary seal 4114.3.3 Additional seal 4114.3.4 Conduit seals 4114.3.5 Detection vents .4215 Instrumentation and control system 4215.1 General 4215.2 Gas detectors . 42
20、15.3 Flame detectors . 4215.4 Pressure gauges. 4215.5 Temperature sensors 4215.6 Manual emergency shutdown devices 4215.7 Emergency power supply unit 4316 Emergency shutdown .4316.1 Application 4316.2 Procedure . 4316.3 Activation 4316.4 ESD action 4316.5 Reset 4417 Special configurations4417.1 Mova
21、ble LNG fuelling station. 4417.1.1 General requirements .4417.1.2 Anchoring 4417.1.3 Containment . 4417.2 Mobile LNG fuelling station . 4417.2.1 General requirements .4417.2.2 Anchoring 4517.2.3 Containment . 4517.2.4 Design . 4517.2.5 Additional requirements for operation .4518 Testing and commissi
22、oning 4518.1 Testing . 4518.1.1 Electrical testing 4518.1.2 Pressure strength testing 4618.1.3 Leak testing . 4618.2 Commissioning 4618.2.1 General provisions.4618.2.2 Purging 4718.2.3 Functional testing 4718.2.4 First filling of the LNG storage tank and other components .4719 Operations 4719.1 LNG
23、tanker offloading 4719.2 Fuelling procedure 47 ISO 2016 All rights reserved vBS ISO 16924:2016ISO 16924:2016(E)19.3 Safety signs 4819.3.1 General on identification labels . 4819.3.2 Equipment marking .4819.4 Equipment and pipework identification 4919.5 Training 4919.6 Installation and operating inst
24、ructions 5019.7 Emergency plan . 5119.8 Maintaining the emergency shutdown . 5120 Inspection and maintenance .5120.1 Inspection . 5120.1.1 General requirements .5120.1.2 Inspection and testing of electrical systems .5220.1.3 Inspection and re-testing of the safety relief valves .5220.1.4 Safety and
25、fire protection equipment .5320.2 Maintenance . 5320.2.1 Preventive maintenance planning . 5320.2.2 Maintenance procedures . 5320.2.3 Maintenance safety .5320.2.4 Draining of the LNG storage tank . 54Annex A (informative) Examples of hazardous zones classification 55Annex B (normative) Separation di
26、stances 59Annex C (informative) Example flow diagram of an LNG fuelling station .63Annex D (informative) Example flow diagram of an LCNG fuelling station .64Annex E (informative) Example flow diagram of an LNG and LCNG fuelling station 65Annex F (informative) Process requirements for the effective c
27、ryogenic pump operation .66Annex G (informative) Recommendations for installation of a centrifugal pump.68Annex H (informative) Recommendations for centrifugal pump design .69Annex I (informative) Recommendations for installation of a reciprocating pump .70Annex J (informative) Recommendations on th
28、e content of the cryogenic pump operation instructions .72Annex K (informative) Example flow diagram of a high-pressure odorizer.74Annex L (informative) LNG identification mark of an LNG fuelling station 75Bibliography .76vi ISO 2016 All rights reservedBS ISO 16924:2016ISO 16924:2016(E)ForewordISO (
29、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 commi
30、ttee 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 electrotec
31、hnical 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
32、 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
33、. 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
34、 an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/forew
35、ord.html.The committee responsible for this document is ISO/PC 252, Natural gas fuelling stations for vehicles. ISO 2016 All rights reserved viiBS ISO 16924:2016BS ISO 16924:2016Natural gas fuelling stations LNG stations for fuelling vehicles1 ScopeThis document specifies the design, construction, o
36、peration, maintenance and inspection of stations for fuelling liquefied natural gas (LNG) to vehicles, including equipment, safety and control devices.This document also specifies the design, construction, operation, maintenance and inspection of fuelling stations for using LNG as an onsite source f
37、or fuelling CNG to vehicles (LCNG fuelling stations), including safety and control devices of the station and specific LCNG fuelling station equipment.NOTE Specific CNG equipment is dealt with in ISO 16923.This document is applicable to fuelling stations receiving LNG and other liquefied methane-ric
38、h gases that comply with local applicable gas composition regulation or with the gas quality requirements of ISO 13686.This document includes all equipment from the LNG storage tank filling connection up to the fuelling nozzle on the vehicle. The LNG storage tank filling connection itself and the ve
39、hicle fuelling nozzle are not covered in this document.This document includes fuelling stations having the following characteristics: private access; public access (self-service or assisted); metered dispensing and non metered dispensing; fuelling stations with fixed LNG storage; fuelling stations w
40、ith mobile LNG storage; movable fuelling stations; mobile fuelling stations; multi-fuel stations.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition
41、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4126 (all parts), Safety devices for protection against excessive pressureISO 9606-1, Qualification testing of welders Fusion welding Part 1: SteelsISO 12100, Safety of machin
42、ery General principles for design Risk assessment and risk reductionISO 12617, Road vehicles Liquefied natural gas (LNG) refuelling connector 3,1 MPa connectorISO 13709, Centrifugal pumps for petroleum, petrochemical and natural gas industriesINTERNATIONAL STANDARD ISO 16924:2016(E) ISO 2016 All rig
43、hts reserved 1BS ISO 16924:2016ISO 16924:2016(E)ISO 15609-1, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc weldingISO 15609-2, Specification and qualification of welding procedures for metallic materials Welding procedure spe
44、cification Part 2: Gas weldingISO 15609-3, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 3: Electron beam weldingISO 15609-4, Specification and qualification of welding procedures for metallic materials Welding procedure specificati
45、on Part 4: Laser beam weldingISO 15609-5, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 5: Resistance weldingISO 15609-6, Specification and qualification of welding procedures for metallic materials Welding procedure specification P
46、art 6: Laser-arc hybrid weldingISO 20421-1, Cryogenic vessels Large transportable vacuum-insulated vessels Part 1: Design, fabrication, inspection and testingISO 21011, Cryogenic vessels Valves for cryogenic serviceISO 21012, Cryogenic vessels HosesISO 21013-1, Cryogenic vessels Pressure-relief acce
47、ssories for cryogenic service Part 1: Reclosable pressure-relief valvesISO 21029-1, Cryogenic vessels Transportable vacuum insulated vessels of not more than 1 000 litres volume Part 1: Design, fabrication, inspection and testsISO 24490, Cryogenic vessels Pumps for cryogenic serviceISO 31000, Risk m
48、anagement Principles and guidelinesIEC 31010, Risk management Risk assessment techniquesIEC 60079-10-1, Explosive atmospheres Part 10-1: Classification of areas Explosive gas atmospheresIEC 60079-14, Explosive atmospheres Part 14: Electrical installations design, selection and erectionIEC 60079-17,
49、Explosive atmospheres Part 17: Electrical installations inspection and maintenanceIEC 60204-1:2005, Safety of machinery Electrical equipment of machines Part 1: General requirementsIEC 61508 (all parts), Functional safety of electrical/electronic/programmable electronic safety-related systemsIEC 61511 (all parts), Functional safety Safety instrumented systems for the process industry sector3 Terms and definitionsFor the purposes of this document, the following terms and def
