DL∕T 5366-2006 英文版 火力发电厂汽水管道应力计算技术规程

ICS27.100P61RecordNo.J641—2007ElectricPowerIndustryStandardofthePeople'sRepublicofChinaPDL/T5366—2006TechnicalCodeforStressCalculatingofSteam/WaterPipinginFossilFuelPowerPlantDesignofFossilFuelPowerPlantDesignofFossilFuelPowerPlantIssueDate:December17,2006ImpIementationDate:May1,2007IssuedbytheNationaIDeveIopmentandReformCommissionofthePeopIe'sRepubIicofChinaElectricPowerIndustryStandardofthePeople'sRepublicofChinaPDL/T5366—2006TechnicalCodeforStressCalculatingofSteam/WaterPipinginFossilFuelPowerPlantDesignofFossilFuelPowerPlantDesignofFossilFuelPowerPlantCHINAELECTRICPOWERPRESSBEIJING,2012图书在版编目（CIP）数据DL/T5366—2006火力发电厂汽水管道应力计算技术规程=TechnicalCodeforStressCalculatingofSteam/WaterPipinginFossilFuelPowerPlant:英文/中华人民共和国国家发展和改革委员会发布.—北京：中国电力出版社，2012.4ISBN978-7-5123-2903-4Ⅰ.①D…Ⅱ.①中…Ⅲ.①火电厂-汽水系统-管道-应力-计算-技术规范-英文Ⅳ.①TM621.7-65中国版本图书馆CIP数据核字（2012）第066731号中国电力出版社出版、发行（北京市东城区北京站西街19号100005）北京博图彩色印刷有限公司印刷各地新华书店经售*2012年4月第一版2012年4月北京第一次印刷850毫米×1168毫米32开本2印张50千字敬告读者本书封面贴有防伪标签，加热后中心图案消失本书如有印装质量问题，我社发行部负责退换版权专有翻印必究DL/T5366—2006IContentsForeword……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………Ⅱ1Scope…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………12NormativeReferences……………………………………………………………………………………………………………………………………………………………………………23General…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………34AllowableStressofSteel…………………………………………………………………………………………………………………………………………………………………45PipingDesignParameters………………………………………………………………………………………………………………………………………………………………56CalculationofWallThicknessofPipingUnderInternalPressure…………………………………………………………………………………………………………………………………………………………………137CalculationofCompensationValue…………………………………………………………………………………………………………………198CheckingofPipingStress…………………………………………………………………………………………………………………………………………………………229CalculationofThrustForceandMomentActingonEquipmentbyPiping……………………………………………………………………………………………………………………………………………………………………………28AppendixA(Normative)UnitsandMeaningsofSymbols……………………………31AppendixB(Informative)PropertiesofCommonSteels……………………………………35AppendixC(Normative)FlexibilityFactorandStressIntensificationFactor………………………………………………49DL/T5366—2006IIForewordThiscodeispreparedasrequiredbyNoticeonIssuanceofPlanforDevelopmentofElectricPowerIndustryStandardsin2006issuedbytheGeneralOfficeofNationalDevelopmentandReformCommission(FGBGY[2006]DocumentNo.1093).AppendicesAandCtothiscodearenormative;AppendixBisinformative.ThiscodewillbeeffectiveuponimplementationandreplaceSDGJ6-1990TechnicalRuleforStressCalculatingofSteam/WaterPipinginFossilFuelPowerPlant.ThiscodeisproposedbyChinaElectricityCouncil.ThiscodeismanagedandinterpretedbyTechnicalCommitteeonElectricPowerPlanningandEngineeringofStandardizationAdministrationofPowerIndustry.ThiscodeisdraftedbyEastChinaElectricPowerDesignInstitute.Theleadingauthorsofthiscode:GuJinandShenQinfeng.ThiscodeistranslatedbySUNTHERTranslation&SolutionsundertheauthorityofChinaElectricPowerPlanning&EngineeringAssociation.DL/T5366—200611ScopeThiscodespecifiesthebasictechnicalrequirementsforthecalculationofstressinsteam/waterpipinginfossilfuelpowerplants.Thiscodeappliestothecalculationofstressinsteam/waterpipingmadeoflowcarbonsteel,lowalloysteelandhighchromesteelinnewlybuilt,expandedormodifiedfossilfuelpowerplants.Thiscodemayprovidereferenceforthecalculationofstressinoilandgaspipingandnon-nuclearrelatedpipinginnuclearstations.DL/T5366—200622NormativeReferencesThefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthisstandard.Fordatedreferences,subsequentamendments(excludingthecontentsoferrata)to,orrevisionsof,anyofthesepublicationsdonotapply.Howeverpartiestoagreementsbasedonthisstandardareencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.DL/T5054CodeforDesignofThermalPowerPlantSteam/WaterPipingSY/T5037SpiralSubmergedArc-WeldedSteelPipeforPipelinesforLowPressureFluidServiceASMEB31.1—2004PowerPipingDL/T5366—200633General3.0.1Thecalculationofpipingstressmainlyaddressestheprimarystressthatoccursunderinternalpressure,deadweightandotherexternalloads,andthesecondarystressthatoccursinconstraineddisplacementarisingfromthermalexpansionandcontraction.Italsodealswiththejudgmentandcalculationofpipingsafety,economyandrationality,aswellasthatthethrustandmomentcreatedbypipingonequipmentshallbewithintheaffordablerangeoftheequipment.3.0.2Thethermalexpansionstressofpipingshallbecheckedforstressrangewithincoldandhotchangerange.Thethrustandmomentactingonequipmentbypipingshallbecheckedrespectivelyaccordingtothemaximumpossiblevaluesundercoldandoperatingconditions.3.0.3Propercoldspringmayreducethehotstatestressandhotstatethrustofpipingonendsduringinitialpipingoperation,aswellasreducethelocaloverstrainofpipingsystem.Coldspringisirrelevanttothecheckedstressrange.3.0.4Anentirepipingsystemmaybe