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1、rdProceedingsofThe3WorldConferenceonSafetyofOilandGasIndustryWCOGI2010Sept.26-27,2010,Beijing,ChinaWCOGI_0206THEREASEARCHONABRASIONMECHANISMOFGASPIPELINEVALVEWangLianweiDongShaohuaSchoolofMaterialsScienceandEngineeringCNPCBeijingNaturalGasPipelineCo.,LtdUniversityofScie
2、nceandTechnologyBeijingBeijing100101,ChinaBeijing100083,ChinaTel:+861084884253,Tel:+861084884452,Email:Shdong@petrochina.com.cnEmail:wanglianwei@petrochina.com.cnABSTRACTlaboratoryexperimentshavebeendone,theerosiondatabaseGasPipelinevalvedamageisaseriousproblem.Aclearha
3、vebeenbuilt,basedontheanalysisresult,therelativeunderstandingbetweenthegasqualityanderosioncanparameterwasadjusted,thevalvelifewasanalyzed,aftertheeffectivelyensuretheintegrityofcontrolvalves,preventvalvepracticeonthesite,itiseffecttoreducetheerosion.Seethecorrosioneven
4、erosionwear,whichfinallyputforwardthefig.1.solutionofpotentialexplosion-relatedsecurity,healthproblems.BNGPC,bechargeoftheoperationoftheShaanxi-BeijingPipeline.Duringtheoperation,anumberoferosiondamageeventsoccurredwhosereasonishigh-speederodeofdustandconstructionremain
5、s.BNGPCstartedthevalveabrasionresearch,thegoodsolutionshavebeenproposed,soasthatthegoodeffectivewasmadeinoperation.Keywords:Gaspipeline,Valve,Erosion1.INTRODUCTIONBNGPC(BeijingNaturalGasPipelineCo.,Ltd)，isabranchofCNPC,whichchargeoftheconstructionandFig1thedamageerosion
6、valveoperationofShaan-Jingnaturalgaspipeline,andprovidethegasforBeijingandTianjin.BNGPCFirstlycarriedoutpipeline2.ANALYSISOFREASONintegritymanagement,whichisdelegateofinternationalUndertheimpactofthehigh-speedairflow,tabletscuttingmanagementofChinesepipeline.Shaan-JingG
7、asPipelinethevalvecavity,leadingtovalvewallthinning,damageevenI,Totallength1256km,3layerPEcoating,CPsystems,perforation.Simultaneously,whenfreewaterexit,corrosionDiameter660mm(26inch),pressure6.4Mpa.Pipelineandabrasionexacerbated,whichdamagethevalveandmakeaII,Totallengt
8、h939.8km,diameter1016mm(40inch),pressurefailureforcontrolandoperation.10Mpa,2Compressorstations，6undergroundst
