美国PE管道发展现状

NSFInternationalPresentationNSFInternationalPresentationADiscussiononPEPipeinUnitedStatesADiscussiononPEPipeinUnitedStatesPEPipeinNorthAmericaABriefHistoryPEPipeinNorthAmericaABriefHistoryPolyethylene’suseasapipingmaterialwasfirstdevelopedinthemid1950’sinNorthAmerica.It’soriginalusewasinoilfieldproductionwhereaflexibleandlightweightpipingproductwasneededtofulfilltheneedsofarapidlydevelopingoilandgasproductionindustryTheuseofpolyethylenepipeintheseinstallationsquicklyledtoit’suseinnaturalgasdistribution.Polyethylene’suseasapipingmaterialwasfirstdevelopedinthemid1950’sinNorthAmerica.It’soriginalusewasinoilfieldproductionwhereaflexibleandlightweightpipingproductwasneededtofulfilltheneedsofarapidlydevelopingoilandgasproductionindustryTheuseofpolyethylenepipeintheseinstallationsquicklyledtoit’suseinnaturalgasdistribution.HistoricalGrowthinNorthAmericaHDPEPipeShipmentsHistoricalGrowthinNorthAmericaHDPEPipeShipments02004006008001000120014001600197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004YearMillionPoundsPEPipeApplicationsPEPipeApplicationsSolidwallpolyethylenepipesarebeingusedforawiderangeofpipingapplications,includinggas,municipal,industrial,marine,mining,landfill,ductandcommunicationsapplications.Itisbeingusedfortheaboveground,buried,trenchless,floatingandmarineapplications.Today,over95%ofthepipeinstalledforthenaturalgasdistributionindustryintheU.S.andCanadaispolyethylene.PEpipehasalsobeenusedinpotablewaterapplicationsforalmost50years.Solidwallpolyethylenepipesarebeingusedforawiderangeofpipingapplications,includinggas,municipal,industrial,marine,mining,landfill,ductandcommunicationsapplications.Itisbeingusedfortheaboveground,buried,trenchless,floatingandmarineapplications.Today,over95%ofthepipeinstalledforthenaturalgasdistributionindustryintheU.S.andCanadaispolyethylene.PEpipehasalsobeenusedinpotablewaterapplicationsforalmost50years.JoiningLargeDiameterHDPEPipewithButtFusionJoiningLargeDiameterHDPEPipewithButtFusionButtFusedHDPEPipe“Arced”forInsertionintoDirectionalDrillingInstallationButtFusedHDPEPipe“Arced”forInsertionintoDirectionalDrillingInstallationHDPEPipeWeightedandFloatedforMarineInstallationHDPEPipeWeightedandFloatedforMarineInstallationPEPipeandMaterialStandardsInUSPEPipeandMaterialStandardsInUSPEMaterialRequirementsPEMaterialRequirementsASTMD3350:CellClassificationsforPolyethylenePipeandFittingMaterials.MaterialDesignations:PE1404,PE2406andPE3408whereas:–Firstdigitisdensityclass,–SeconddigitsthePENTclass,–The“0”isblank,–Fourthdigitmeansthatthematerialhasa:•Valueof4:an400-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).•Valueof(6)an600-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).•(Valueof(8)an800-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).ASTMD3350:CellClassificationsforPolyethylenePipeandFittingMaterials.MaterialDesignations:PE1404,PE2406andPE3408whereas:–Firstdigitisdensityclass,–SeconddigitsthePENTclass,–The“0”isblank,–Fourthdigitmeansthatthematerialhasa:•Valueof4:an400-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).•Valueof(6)an600-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).•(Valueof(8)an800-psimaximumrecommendedHDS(0.5designfactor)at73oF(23oC).PEMaterialCellClassifications-waterPEMaterialCellClassifications-waterSpecificationD3350CellClassificationsforPolyethylenePipeMaterials:ATypicalCellClassificationforPE3408materialisidentifiedasPE334464CPEMaterialDesignationCode:PE1404PE2406PE3408PhysicalPropertyCellClassificationsDensity123MeltIndex23or43or4FlexuralModulus33or44or5TensileStrengthatYield13or44or5SlowCrackGrowthResistance166HydrostaticDesignBasis134ColorandUVStabilizerCCCorECorESpecificationD3350CellClassificationsforPolyethylenePipeMaterials:ATypicalCellClassificationforPE3408materialisidentifiedasPE334464CPEMaterialDesignationCode:PE1404PE2406PE3408PhysicalPropertyCellClassificationsDensity123MeltIndex23or43or4FlexuralModulus33or44or5TensileStrengthatYield13or44or5SlowCrackGrowthResistance166HydrostaticDesignBasis134ColorandUVStabilizerCCCorECorEPEMaterialRequirementsPEMaterialRequirementsColorandUltraviolet(UV)StabilizeLetterCodes:CodeLetterColorandUVStabilizerANaturalBColoredCBlackwith2%minimumcarbonblackDNaturalwithUVstabilizerEColoredwithUVstabilizerColorandUltraviolet(UV)StabilizeLetterCodes:CodeLetterColorandUVStabilizerANaturalBColoredCBlackwith2%minimumcarbonblackDNaturalwithUVstabilizerEColoredwithUVstabilizerPEMaterial–LongTermHydrostaticRequirementsWaterPEMaterial–LongTermHydrostaticRequirementsWaterTestinginaccordancewithASTMD2837:One,10,000hourstestat23°C(18datapoints)Two,2,000hourstestat23°C(12datapoints)Two,6,000hourstestat60°C(12datapoints)One,10,000hoursteststressat60°C(18datapoints)Thedataisextrapolatedto50yearsor100,000hourstocalculatetheLTHS(the100,000interceptandtimetofailure).TheHDBisobtainedbasedonaseriesofestablishedstressvaluesforacompoundthataresetbasedontheLTHSinASTMD2837.TheHDSisthenobtainedbymultiplyingtheHDBbyaservicefactor.Testinginaccordanc