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1No.HTA001(D)系列安全阀PRESSURERELIEFVALVES北京航天动力研究所BEIJINGAEROSPACEPROPULSIONINSTITUTE北京航天石化技术装备工程公司BEIJINGAEROSPACEPETROCHEMICALTECHNOLOGYANDEQUIPMENTENGINEERINGCORPORATION(BSPC)HTO/HTOAHTB/HTBAR2HT安全阀在苏丹吉利联合循环电HT安全阀在上海石化公司站工程天然气储罐装置上运行2000M³液化气罐上运行为燕山石化生产的安全阀HT安全阀在金陵石化炼油焦化装置上运行为大庆石化总厂生产的高压耐蚀安全阀3简介北京航天动力研究所（原中国航天科技集团公司第十一研究所（京））是我国大型航天运载器液体火箭发动机的研究设计单位。从上世纪六十年代开始就开发出了高性能、高可靠性的用于航天的安全泄放装置即安全阀。五十年来积累了丰富的研制经验，建设了先进的生产试验设备。安全阀是一种自动阀门，介质超压时自动开启排出额定数量的流体，当压力恢复正常后自行关闭并阻止介质流出。它是压力容器和工艺系统上的重要保护装置，在航天、石化、能源、医药、冶金等行业的装置和设备上有广泛的应用。由于安全阀的性能和可靠性直接关系到装置和设备的安全和稳定运行，因此必须在设计、选材、制造、试验等方面严格执行相关标准或规范，并进行全过程严格质量管理。为了满足国内各行业对具有国外标准和先进水平的安全阀的需求，从八十年代开始，我所在中石化总公司、原化工部、劳动部及石化、化工等行业各厂家的帮助和支持下，开发成功了HT系列安全阀。HT系列安全阀严格按照API标准和ASME规范进行设计、制造、试验和验收。并在安全阀的内部结构，关键零件的设计、制造和工艺方法上采用了五十年来航天技术的成熟经验。1996年10月HT系列安全阀获得GB/T19001---1994(idtIS09001:1994)质量体系认证书；1997年5月通过航天质量认证工作委员会审查和检验，被授予“中国航天标志产品”；1999年9月获得国家质量技术监督局首批颁发的“安全注册”证书。目前已广泛应用于国内数百家企业和国家重点建设项目、大型技改项目，并出口国外，受到用户的普遍好评。我所是国家特种泵阀工程技术研究中心的依托单位，建有国内一流水平的安全阀性能检测试验装置，可以满足国内各行业和出口项目对具有国外标准和先进水平安全阀的需求。4INTRODUCTIONTheBeijingAerospacePropulsionInstitute(OriginalThe11thResearchInstituteofChinaAerospaceScience&TechnologyCorporation(Beijing))isengagedindevelopingtheliquidrocketengineforthelargelaunchvehicleofChina.Since1960s,wehavedevelopedmanysafetyrelievingdevices(pressurereliefvalves)withhighperformanceandreliabilitywhichusedforaerospace.Andwehaveaccumulatedabundantdevelopingexperience,builtperfectmanufacturing&testequipment.Pressurereliefvalveisakindofautovalvewhichautomaticallyliftstodischargefluidofratedrelievingcapacitywhensystempressureexceedsthepresetvalue,andwhenthepressuredecreasestonormalvalue,thevalvereclosestostopdischarging.Itisanimportantdeviceofpressuredvesselandprocesssystem,andwidelyusedinthefieldsofaerospace,petrochemistry,energy,medicine,metallurgy,etc..Asitsperformanceandreliabilityismuchimportantforthesafetyandtheoperationstabilizationofequipment,itmustbestrictlydesigned,material-selected,manufacturedandtestedaccordingtotherelatedstandardsorcodes,andstrictqualitycontrolmustbeadoptedduringfullprocess.Tomeetthedemandsforhighperformancepressurereliefvalvesmanufacturedinaccordancewithinternationalstandardsinvariousfields,wehavedevelopedHTseriespressurereliefvalvewiththehelpofChinaCorporationofPetrochemistryIndustry,previousMinistryofChemicalIndustry,MinistryofLaborandrelativeplantssince1980s.HTseriespressurereliefvalvewasstrictlydesigned,manufactured,testedandacceptancecheckedinaccordancewithAPIstandardsandASMEcodes.Theinnerstructureofvalve,alongwiththedesign,manufactureandprocessmethodofcriticalpartsaredesignedbyutilizingmatureexperiencesfromaerospacetechnologywhichhasbeenaccumulatedformorethan50years.InOctober1996,HTseriespressurereliefvalvegotGB/T19001-1994(idtISO9001:1994)qualitysystemcertification.InMay1997,examinedandverifiedbySpaceQualityCertificateCommission,theproductsweregranted“ChinaSpaceMarkProduct”.AndinSept.1999,asfirstbatchmanufacturer,weareacquiredthecertificateof“safetyregistration”whichisissuedbyChinaStateBureauofQuality&TechnologySupervision.Nowourproductshavebeenappliedbyhundredsofdomesticcorporations,nationalimportantconstructionprojectsandtechnicalimprovementprojects,andourproductsaregotofhighreputation.OurinstituteisthecommissionentityofNationalEngineeringResearchCenterforSpecialPumps&Valves,andhastop-rankingpressurereliefvalveperformancetestequipment.Aboveall,weareabletosupplyhighperformancepressurereliefvalveinaccordancewithinternationalstandardstodomesticprojectsandothersetsestablishedabroad.5目录Contents页次Page简介Introduction性能、特点PerformancesandFeatures型号编制CodeSystem结构Construction材料Materials规格Specifications钢制法兰标准SteelFlangeStandard阀座的密封性SeatTightness定径Sizing遵循标准CodesandStandards●ISO4126-1安全阀SafetyDevicesforProtectionAgainstExcessivePressurePart1:Safetyvalves●APIStd526钢制法兰连接泄压阀FlangedSteelPressureReliefValves●APIStd527泄压阀阀座的密封性SeatTightnessofPressureReliefValves●ASME《锅炉与压力容器规范》第Ⅷ卷第一册《压力容器建造规则》ASME，BoilerandPressureVesselCode，SectionⅧDivision1，RulesforConstructionofPressureVessels6性能·整定压力偏差：≤±3%·超压：≤10%(气体介质)/≤20%(液体介质)·启闭压差：≤10%(气体介质)/≤20%(液体介质)·密封性能：符合APIStd527标准规定特点·阀座与阀体为可分离式，维修方便、经济。·伞形反冲盘能够有效地提高升力，阀瓣在较小超压下就能够迅速地全开启，排放介质，从而达到保护设备的目的。·调节圈能够调整满意的启闭压差。·对反冲盘和导套、阀杆和调整螺钉的材料进行合适的选择以及间隙的适当选取，保证阀瓣运动灵活。·阀瓣和阀座密封面堆焊硬质合金，表面精研后保证高密封性和使用寿命长。·平衡波纹管式安全阀中的波纹管能够消除背压波动对阀门性能的影响，还能保护弹簧和其它内件免受介质的腐蚀。·弹簧和波纹管选材及加工工艺精良，并进行严格的测试和检查。7Performances·Theallowabletoleranceofthesetpressure≤±3%ofthesetpressure·Overpressure:≤10%ofthesetpressure（gas）/≤20%ofthesetpressure（liquid）·Blowdown:≤10%ofthesetpressure（gas）/≤20%ofthesetpressure（liquid）·Tightness:ThevalveshavegoodseattightnessandtheleakagerateconformstoAPIStd527Features·Thesolidnozzleisscrewedintothebody,whichmakesthemaintenanceeasy.·Theshapeofthedischolderhasbeendesignedtoenhancetheeffectofthefluidthrustforaninstantliftofthedisc.·Blowdowncontrolisprovidedwithadjustablenuzzleringonly.·Theadequatematerialsandclearancebetweendischolderandguide,spindleandadjustingscrewassuresdisctoliftsuccessfully.·Thesurfaceofboththediscandthenozzleseataredeposite