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1、ICS27.010FOl3NationalStandardofthePeople,sRepublicofChinaGBT425362023AssemblyvalveonhighpressurehydrogenstoragecylinderforvehiclesIssuedon23-05-2023Implementedon01-06-2024PromulgatedbyStateAdministrationforMarketRegulationStandardizationAdministrationofthePeople,sRepublicofChinaTableofContentsForewo
2、rdII1 Scope12 NormativeReferences13 TermsandDefinitions24 Basicmodel25 TechnicalRequirements36 TestMethodsandQualificationCriterions57 Inspectionregulations218 1.abeling,packaging,transportationandstorage259 Productqualificationcertificateandbatchinspectionqualitycertificate26AnnexA(Informative)Calc
3、ulationMethodofThreadShearStressSafetyFactor.27AnnexB(Informative)PerformanceTestMethodandQualificationCriterionofSealsforAssemblyvalves32AnnexC(Informative)AirTightnessTestMethod(vacuumchambermethod)35ForewordThisstandardisdraftedinaccordancewiththerulesgivenintheGB/T1.1-2020,Guidelinesforstandardi
4、zationPart1:structureandpreparationofstandards.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisstandardmaybethesubjectofpatentrights.Theissuingbodyofthisdocumentshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisstandardwasproposedandpreparedbyNationalStandardizationTechn
5、icalCommitteeofGasCylinders(SACTC31).DraftingentitiesofthisStandard:ChinaSpecialEquipmentInspectionandResearchInstitute,DalianBoilerandPressureVesselInspectionandTestingResearchInstituteCo.,1.td.,ZhejiangUniversity,WeishiEnergyTechnologyCo.,1.td.,ShanghaiSunhuaNewEnergySystemCo.,1.td.,HefeiGeneralMa
6、chineryResearchInstituteCo.,1.td.,ZhangjiagangFuruiValveCo.,1.td.,ShanghaiInstituteofSpecialEquipmentInspectionandTechnicalResearch,BeijingTianhaiIndustrialCo.,1.td.,NingboJinjiajiaValveCo.,1.td.,TehiHydrogenEnergyTesting(Baoding)Co.,1.td.MaindraftersofthisStandard:BoKe,GuChunlin,1.iuYan,WangDongyu,
7、GuChengjie,HuangQianghua,ZhangBaoguo,XuPing,JinXin,1.uJun,XuPeng,Sun1.i,1.iXiang,1.iQian,ZhaoBaodi,WangWei,XuDiqing,ZhangYan,GaoWei.Assemblyvalveonhighpressurehydrogenstoragecylinderforvehicles1 ScopeThisdocumentspecifiesthebasicmodel,technicalrequirements,testmethodsandqualificationcriterion,inspec
8、tionrules,marking,packaging,transportation,storagerequirements,etc.ofassemblyvalveonhighpressurestoragehydrogencylinderforvehicles(hereinafterreferredtoasassemblyvalve).Thisdocumentappliestotheassemblyvalveonhighpressurehydrogenstoragecylinderforvehicles,withthenominalworkingpressurenotgreaterthan70
9、MPa,theworkingtemperatureis-40C85C,fixedontheroadvehiclesusedasfueltanks.Thetypetestofthetemperature-drivensafetypressurereliefdeviceforhigh-pressurehydrogenstoragecylindersusedinvehiclescanbecarriedoutwithreferencetothisdocument.2 NormativeReferencesThefollowingdocumentsareindispensablefortheapplic
10、ationofthisdocument.Fordatedreferences,onlytheeditiondatedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.GB/T192Generalpurposemetricscrewthreads-BasicprofileGB/T196GeneralpurposemetricscrewthreadsBasicdimensionsGB/T197Generalpurposemetricscrewthre
11、ads-TolerancesGB/T223MethodsforChemicalAnalysisofSteelandAlloysGB/T228.1MetallicMaterials-TensileTesting-Part1:MethodofTestatRoomTemperatureGB/T229Metallicmaterials-CharpypendulumimpacttestmethodGB/T1220StainlesssteelbarsGB/T3191ExtrusionrodsandbarsofaluminumandaluminumalloysGB/T3934GaugesforGeneral
12、PurposeScrewThreadsGB/T7762-2014Rubber,VulcanizedorThermoplastic-ResistancetoOzoneCracking-StaticStrainTestingGB/T7999OpticalemissionSpectronietricanalysismethodofaluminumandaluminumalloysGB/T8337FusibleplugdeviceforgascylindersGB/T11170Stainlesssteel-Determinationofmulti-elementcontents-Sparkdischa
13、rgeatomicemissionSpectrometricmethod(Routinemethod)GB/T13005TerminologyofgascylindersGB/T15382GeneralspecificationsofgascylindervalvesGB/T20668UnifiedscrewthreadsBasicdimensionsGB/T20975MethodsforchemicalanalysisofaluminumandaluminumalloysGB/T32249Aluminumandaluminum-aloydieforgings,handforgingsandr
14、olledringforgingsGeneralspecificationGB/T34542.2Storageandtransportationsystemsforgaseoushydrogen-Part2:TestmethodsforevaluatingmetallicmaterialcompatibilityinhydrogenGBZT34542.3Storageandtransportationsystemsforgaseoushydrogen-Part3:Testmethodfordeterminationofthesusceptibilityofmetallicmaterialsto
15、hydrogengasembrittlement(HGE)GB/T37244FuelSpecificationforProtonExchangeMembraneFuelCellVehicles-HydrogenYS/T479Aluminumandaluminumalloyforgingsforgeneralindustrialuse3 TermsandDefinitions3.1 TermsanddefinitionsInadditiontothoseestablishedinGB/T13005,thefollowingtermsanddefinitionsareapplicabletothi
16、sDocument.3.1.1 AssemblyvalveonhighpressurehydrogenstoragecylinderforvehiclesAvalvethatconsistsofmanualshut-offvalve,automaticshut-offvalve,checkvalve,thermally-activatedpressurereliefdevice(TPRD),temperaturesensorandothercomponentsandisinstalledonhighpressurehydrogenstoragecylinderforvehicles.3.2 S
17、ymbolsThefollowingsymbolsapplytothisDocument.P-Nominalworkingpressureoftheassemblyvalve.4 Basicmodel4.1 Theassemblyvalveshallincludemanualshut-offvalve,automaticshut-offvalve,checkvalve,TPRD,temperaturesensorandothercomponents.4.2Themarkingofacylindervalvemodelshallbecomposedofthefollowingparts:CQZF
18、-I设计序号额定电乐公称工作伍力车用高乐储然气瓶缄合脚门DesignserialnumberRatedvoltageNominalworkingpressureAssemblyvalveonhighpressurehydrogenstoragecylinderforvehiclesExample:Foranassemblyvalveonhighpressurehydrogenstoragecylinderforvehicleswithanominalworkingpressureof35MPa,aratedvoltageof12VandadesignserialnumberofI,themod
19、elismarkedasCQZF-35-12-1.5 TechnicalRequirements5.1 Materialrequirements5.1.1 Metallicmaterials5.1.1.1 Themainpartsandmaterialsofassemblyvalves(valve,valvestemandotherpressureparts)shouldhavetheoriginalqualitycertificateprovidedbythematerialmanufacturer,oracopyofthequalitycertificatewiththeofficials
20、ealofthematerialbusinesscompanyandthesignature(seal)ofthepersonincharge.5.1.1.2 Thematerialofthemainpartsoftheassemblyvalveshouldhavegoodcompatibilitywithhydrogenandmeettherequirementsofthecorrespondingmaterialstandards.5.1.1.3 Themainpartsandcomponentsoftheassemblyvalveshouldbemadeof6061aluminumall
21、oyorS31603austeniticstainlesssteel.6061aluminumalloyextrudedrodsshallcomplywiththeprovisionsofGB/T3191,andforgingsshallcomplywiththeprovisionsofGB/T32249orYS/T479.S31603austeniticstainlesssteelbarsshallcomplywiththeprovisionsofGB/T1220,andforgingsshallcomplywiththeprovisionsofNB/T47010.TheNicontento
22、fS31603austeniticstainlesssteelshouldbenotlessthan12%,andthesectionshrinkagerateshouldnotbelessthan70%;forparts,materialswithastressvaluegreaterthan25%ofguaranteedvalueoftensilestrengthunder1.25timesthenominalworkingpressure,shouldalsosatisfythattheNiequivalentisnotlessthan28.5%(Niequivalentcalculat
23、ionformulais:Nig=12.6C+0.35Si+1.05Mn+Ni+0.65Cr+0.98Mo).5.1.1.4 Forassemblyvalveswithanominalworkingpressuregreaterthan40MPa,ifthemainpartsaremadeofmaterialsotherthan6061aluminumalloyandS31603austeniticstainlesssteel,thehydrogencompatibilitytestandhydrogenbrittlesensitivitytestshallbecarriedoutaccord
24、ingtotheprovisionsof6.1.3and6.1.4.5.1.2 Non-metailicsealmaterials5.1.2.1 Non-metallicsealmaterialsshouldhavetheoriginalqualitycertificateprovidedbythematerialmanufacturer,oracopyofthequalitycertificatewiththeofficialsealofthematerialbusinesscompanyandthesignature(seal)ofthepersonincharge.Thequalityc
25、ertificateshouldincludethehardness,tensilestrength,elongationatbreak,etc.ofthenon-metallicsealmaterial.5.1.2.2 Non-metallicsealsshouldbemadeofmaterialswithgoodcompatibilitywithhigh-pressurehydrogen,andthepropertiesofthesealmaterialsshouldmeettherequirementsof6.7.5.2 Designandfabric5.2.1 Theassemblyv
26、alveusedonhigh-pressurehydrogenstoragecylindersforvehiclesthatcannotbedisassembledduetothestructuraldesignofthevehiclebodyhasadesignservicelifeofnotlessthan15years;theassemblyvalveusedonhigh-pressurehydrogenstoragecylindersforothervehicleshasadesignservicelifeofnotlessthan6years.5.2.2 Theassemblyval
27、veshouldhavethefollowingfunction:a) One-waycut-offfunction,whenthepowerisnoton,hydrogencanbefilledintothecylinderthroughtheassemblyvalveinonedirection,andatthesametime,thegasinthecylindercanbepreventedfromflowingoutinreverse;b) Safetypressurerelieffunction,inspecialcasessuchasfire,thegasinthecylinde
28、rcanbeautomaticallyreleasedthroughtheassemblyvalveTPRD;c) Temperaturemonitoringfunction,whichcanmonitorthegastemperatureinsidethecylinder;d) Manualopeningandclosingfunction,thevalvecanbeopenedorclosedbymanualoperation;e) Automaticopeningandclosingfunction,thevalvecanbeopenedorclosedbyelectricsignal.
29、5.2.3 Assemblyvalveshouldcarryoutfiniteelementstressanalysis.Under2.5timesthenominalworkingpressure,thestressofeachpartofthevalveshouldnotbegreaterthantheguaranteedvalueoftheyieldstrengthofthevalvematerial.5.2.4 Thethreadspecificationsoftheinletandoutletportsofassemblyvalvesshalladoptstraightthreads
30、inaccordancewithGB/T192,GB/T196,GB/T197orGB/T20668,orotherthreadsinaccordancewiththecorrespondingstandards.5.2.5 Theassemblyvalvethreadshouldbecheckedforstrength,andtheshearstresssafetyfactorofthethreadat1.5timesthenominalworkingpressureshouldnotbelessthan4.Thecalculationmethodofthreadshearstresssaf
31、etyfactorshallbecarriedoutinaccordancewithAnnexA.5.2.6 Fusiblealloysorglassbubblesshouldbeusedforsafetypressurereliefdevices,andtheoperatingtemperatureis(1105)C.Fusiblealloysandglassbubblesshouldcomplywiththestandardsforsafetypressurereliefdevicesforgascylinders.Thesafetypressurereliefchanneloftheas
32、semblyvalveshouldbeindependentandshouldnotbeconnectedwithotherfunctionalchannels.Onlyonesafetypressurereliefdevicecanbeinstalledoneachsafetypressurereliefchannel.5.2.7 Thevalveshouldbeforgedandformed,andthereshouldbenodefectssuchascracks,wrinkles,inclusions,looseness,andshrinkagecavities.5.2.8 O-rin
33、gsshouldbetestedaccordingtotheprovisionsofB.3inAnnexBbeforeselected.Thecompressionsettest,hardnesschangetest,hydrogendamagetestandtemperatureshrinkagetestshouldbecarriedoutbytheO-ringmanufacturerandtestreportsshouldbeprovided.6 TestMethodsandQualificationCriterions6.1 Mainpartsmetalmaterialtest6.1.1
34、 Mechanicalpropertiestest6.1.1.1 TestmethodsTensiletestspecimensandtestmethodsformaterialsofmainpartsandcomponentsshallbecarriedoutinaccordancewiththeprovisionsofGBT228.1,impacttestspecimensandtestmethodsshallbeinaccordancewithGB/T229(exceptforaluminumalloymaterials).6.1.1.2 QualiflcationCriterionsT
35、hetestresultsshallmeettherequirementsofmaterialstandardsanddesign.6.1.2 Chemicalcompositionanalysis6.1.2.1 AnalyticalmethodThechemicalcompositionanalysisof6061aluminumalloyiscarriedoutinaccordancewithGBT7999orGBT20975,andthechemicalcompositionanalysisofS31603austeniticstainlesssteeliscarriedoutinacc
36、ordancewithGBT223(allparts)orGBT11170.Whenothermaterialsareused,thechemicalcompositionanalysisofthemshallbecarriedoutinaccordancewiththecorrespondingnationalstandards.6.1.2.2 QualificationCriterionsTheanalyticalresultsshallmeettherequirementsofmaterialstandardsanddesign.6.1.3 Hydrogencompatibilityte
37、st6.1.3.1 TestmethodsThedeterminationoftensileproperties,fatiguepropertiesandfracturemechanicalpropertiesofmaterialsinhydrogenshouldmeettherequirementsofGB/T34542.2.6.1.3.2 QualificationcriterionsThetestresultsshallmeettherequirementsofmaterialstandardsanddesign.6.1.4 Hydrogenbrittlesusceptibilityte
38、st6.1.4.1 TestmethodsThehydrogenbrittlesusceptibilitytestshallbecarriedoutaccordingtoGBT34542.3.6.1.4.2 QualificationcriterionsThetestresultsshallmeettherequirementsofmaterialstandardsanddesign.6.2 Visualinspection6.2.1 TestmethodTheappearanceofvalvebodyshallbeinspectedvisually.6.2.2 Qualificationcr
39、iterionsa) Thereshouldbenodefectssuchascracks,wrinkles,inclusions,looseness,shrinkagecavities,etc.onthesurfaceofthevalve;b) Thethreadshouldbesmooth,andinvertedteeth,flatteeth,doublelines,flatteethbottoms,cusps,wideteeth,andobviousjumpingripplesonthethreadsurfacearenotallowed.6.3 Threadinspection6.3.
40、1 TestmethodCheckwithagaugethatcomplieswithGBT3934orthecorrespondingstandard.6.3.2 AcceptanceindicatorsThecheckresultsshouldmeetthefollowingrequirements:a) Thenumberofeffectivepitchesandsurfaceroughnessofthethreadshallmeetthedesignrequirements;b) Theteethprofile,sizeandtoleranceofthethreadshallcompl
41、ywithrelevantstandards.6.4 Airtightnesstest6.4.1 TestmethodInaccordancewiththeprovisionsofAnnexC,theairtightnesstestshallbecarriedoutundernormaltemperatureconditionsat(20.5)MPaandapressurenotlowerthan1.25p,andthetestmediumshallbepurehelium.Accordingtothestructureoftheassemblyvalve,theinternalleakage
42、andexternalleakagetestsarecarriedoutrespectively.6.4.2 QualificationCriterionsHeliumleakagerateshouldnotexceed7.5m1.h.6.5 TPRDtest6.5.1 Hydrogencycletest6.5.1.1 TestmethodUsehydrogentoperform15,000pressurecycleson5TPRDsandthecyclefrequencyshouldnotexceed10times/min.ThetestrequirementsareshowninTable
43、1.Table1HydrogencycletestmethodCyclepressureCycletimes/timesTesttemperature,C1.owerlimitUpperlimit(2l)MPa1.5p(lMPa)585(2l)MPaI.25p(IMPa)149585(2l)MPa1.25p(lMPa)95005556.5.1.2QualificationCriterionsAfterthehydrogencycletest,theTPRDshouldmeettherequirementsof6.5.9leaktest,6.5.10actiontestand6.5.11flow
44、test.6.5.2 Acceleratedlifetest6.5.2.1 TestmethodTheteststepsareasfollows.a) Carryoutthisteston8TPRDs,amongwhichthetesttemperatureof3TPRDsistheoperatingtemperature41,andthetesttemperatureoftheother5TPRDsistheacceleratedlifetemperature1/*,thecalculationformulaisasfollows:6.5.2.26.5.36.5.3.16.53.26.5.4
45、T/0.50210.498-1Intheformula,takes273.15,UatakeS85,%ctakes110.b) PuttheTPRDinanincubatororawaterbath,andthetemperaturetoleranceinthetestisloC.c) ThepressureofhydrogenorinertgasattheinletofTPRDshouldnotbelowerthan1.25p.ThepressuresourcecanbelocatedoutsidetheincubatororwaterbathandpressurizetheTPRDwith
46、asingleorbranchpipingsystem.Ifabranchpipingsystemisused,eachbranchpipingshallcontainacheckvalve.QualificationCriterionsTheTPRDactiontimetestedundershouldnotexceed10h.TheTPRDtestedunder*Mshouldnotactwithin500h,andtheTPRDafterthetestshouldmeettherequirementsof6.5.9leaktest.TemperaturecycletestTestmeth
47、odTheteststepsareasfollows.a) PutaTPRDwithoutinternalpressureinaliquidwithatemperaturelessthanorequalto-40foratleast2hours,thentransferittoaliquidwithatemperaturegreaterthanorequalto85within5minutes,andletitstandatthistemperatureatleast2h,afterwhichtransfertheTPRDtoaliquidatatemperaturelessthanorequ
48、alto-40within5minutes;b) Repeatstepa)tocomplete15cycles;c) PuttheTPRDinaliquidwithatemperaturelessthanorequalto-40foratleast2hours,andthenusehydrogentoperfo11n100pressurecyclesontheTPRDatanambienttemperaturelessthanorequalto-40.Thelowerlimitofthepressurecycleshouldnotexceed2MPa,andtheupperlimitofthepressurecycleshouldnotbelessthan0.8p.QualificationCriterionsAfterthetemperaturecycletest,theTPRDshallmeettherequirementsof6.5
