常压罐管理

Page1of20MUGLADBASINOILDEVELOPMENTPROJECTEPCⅡPIPELINESYSTEM-SEGMENTA&BCONTRACTNO.MBOD/DS/03A/97SPECIFICATIONFORATMOSPHERICSTORAGETANKSBEIJING·CHINASPECIFICATIONFORATMOSPHERICSTORAGETANKSDOCUMENTNO.SD-AB-E-MA-SP-7001GREATERNILEPETROLEUMOPERATINGCO.KHARTOUMNORTH,SUDANMUGLADBASINOILDEVELOPMENTPROJECT,EPCⅡPIPELINESYSTEM-SEGMENTA&BREVISIONDATEREVISIONDETAILSPREPAREDBYCHECKEDBYAPPROVEDBY0APPROVEDCHENXIANGQIUWANGBAOXIAMADANKEMUGLADBASINOILDEVELOPMENTPROJECTPIPELINESYSTEMGNPOCDEPARTMENT:ENGINEERINGDOCUMENTNo.SD-AB-E-MA-SP-7001REV.0PagePAGE7of20FILENAME\pA:\常压罐规定0.docDATE:DATE\@"yy.M.d"01.1.25CONTENTS1.0SCOPE2.0CODES,REGULATIONSANDSTANDARDS3.0DEFINITIONS4.0DESIGN5.0MATERIALS6.0DIMENSIONALTOLERANCE7.0FABRICATION8.0STRUCTURAL/FOUNDATIONINSPECTIONANDTESTINGCLEANING11.0CALIBRATIONREQUIREMENTS12.0QUALITYANDRECORDINGDOCUMENTREQUIREDTOSUBMIT13.0EQUIPMENTTAGGING14.0PREPARATIONFORSHIPMENT1.0SCOPEThisspecificationdescribestherequirementsforthematerials,design,fabricationandinstallationofallatmosphericstoragetanks,includingdieselfueltanks,sumptanks,treatedwatertanksanddieseldaytanks.2.0CODES,REGULATIONSANDSTANDARDS2.1Suppliershallmeetorexceedtherequirementsofthelatesteditionofthefollowingcodes,regulationsandstandards,exceptassupersededherein.Incaseswheremorethanonecode,regulationorstandardapplytothesamecondition,themoststringentshallbefollowed.Intheeventofaconflictbetweenthisspecificationandotherspecificationsorcorrespondence,theOWNER/CPECCshallbeconsultedandaruling,inwriting,shallbeobtainedbeforeanyworkisstarted.APISpec.12F-ShopWeldedTanksforStorageofProductionLiquidsGuideforInspectionofRefineryEquipment,Chap.XIII-AtmosphericandLow-PressureStorageTanksRegulations,CodesandStatutesofAuthorityhavingjurisdictioninlocationofinstallationASTMA194Class2HNUTsforSweetServiceAPIStd2000-VentingAtmosphericandLow-PressureStorageTanksAPIStd650-WeldedSteelTanksforOilStorageAPIStd2550-MethodForMeasurementandCalibrationofUprightCylindricalTanks2.2ThefollowingGeneralSpecificationsshallbeusedinconjunctionwiththisspecificationwhereapplicable:SD-AB-E-MA-SP-7002EquipmentWeldingSD-AB-E-MA-SP-7014PipingMaterialSD-AB-E-MA-SP-7007InsulationSD-AB-E-MA-SP-7008Above-groundpipelineandequipmentcoatingmaterialinstationsSD-AB-M-CO-CI-0001Civilconstructionprocedure2.3Anydeviationfromthisspecificationshallbeapproved,inwriting,byOWNER/CPECC.Suchwrittenapprovalshallbeobtainedpriortothecommencementofanyworkwhichwouldconstitutesuchadeviation.3.0DEFINITIONS3.1OWNEROWNERmeanstheConsortium,comprisingChinaNationalPetroleumCorporation,PETRONASCarigaliOverseasSdnBhd,StatePetroleumCorporationandSUDAPETLimited(SUDAPET),anditsagentsordesignatedrepresentativesincludingOGPTechnicalServicesSdnBhdoranyoftheirassigns.3.2CPECCCPECCmeansChinaPetroleumEngineering&ConstructionCorporation,thecontractorofMUGLADBASINOILDEVELOPMENTPROJECT,EPCIIPIPELINESYSTEM–SEGMENTA&B.3.3SupplierSuppliermeansthecompanythatprovidestheequipmentormaterialstoOWNER/CPECCforthisproject.3.4WorkmanshipWorkshallbecarriedoutinaccordancewithcoderequirementsandindustrystandardsforgoodworkmanship.4.0DESIGN4.1DesignTemperatureDesignTemperatureofdieselfueltanks,dieseldaytanksandtreatedwatertanksshallbespecifiedas100C~500C.DesignTemperatureofsumptanksshallbespecifiedas250C~750C.4.2CorrosionAllowanceCorrosionallowanceshallbespecifiedas1.6mm.4.3.TellTaleHoles4.3.1ReinforcingPadsTelltalehole,1/8"NPT,shallbeprovidedasfollows:Oneholeinallsinglepiecereinforcingpads.Wherepadsaresplit,eachsectionshallhaveonehole.4.3.2Closed-InAreasThelowerpartofreinforcingpadsorclosedinareasshallbeleftopentoprovideatelltalehole.4.4NozzlesandManways4.4.1WeldSeamsandPlateJointsNozzlesandmanwaysshallnotbemadeinweldseams,norshallreinforcementpadsoverlapplatejoints.4.4.2ManwaySizeManwaysshallbeaminimumsizeof24".4.4.3NozzleTypeNozzles2"andlargershallbeseamlesslongweldingneckflangesorseamlesspipewithweldingneckflanges.Slip-ononlyonmanways.4.4.4ThreadedConnectionsConnections1-1/2"nominalpipesizeandsmallershallbethreadedexceptwhereflangedinstrumentconnectionsarespecifiedandshallbeatleastequivalentto3,000psiforgedsteelcouplingsonhalfcouplings.4.4.5MinimumSizeConnectionsshallbeaminimumof1"withthefittingsatleastequivalentto3,000psiforgedsteelandthepipeschedule80minimumtothefirstvalve.Forinternallycoatedtanks,theminimumconnectionsizeshallbe2”flanged.4.4.6ConnectionWallThicknessNozzles,handholes,andmanwayconnectionsshallhaveaminimumwallthicknessequivalenttoextrastrongpipe.4.4.7NozzleProjectionTheprojectionofnozzlesandmanwaysfromthetankshallbemeasuredfromtheoutsideofthetankoftheflangeface,notbelessthandimensionBasshowninTable1.Wherethevesselisexternallyinsulated,dimensionBshallbeincreasedbythethicknessoftheinsulation.TABLE1ConnectionSizeDimensionB2"3"and4"6"6"to12"inclusive8"Over12"andmanways10"4.4.8MaintenanceandhandlingRequirementsLiftinglugsshallbeprovided.4.4.9HolesinPlatesHolesshallnotbecutinplatesforerectionpurposes.4.5Dipping,venting,reliefandvacuumopeningsThesizeandlocationofdipping,venting,reliefandvacuumopenings,ifrequired,shallbeaddressedinrelevantDatasheet.4.6SupportsThesupportsofdieselfueltanksshallbesaddles.Thesupportsofdieseldaytanksshallbecolumns.Thesumptanksandtreatedwatertanksshallbeflatbottom.4.7WindgirdersWindgirdersshallnotneed.4.8HeatingrequirementThesumptanksshallbeheatedbyHeatingtrace.5.0MATERIALS5.1PipePipeshallbeinaccordancewithSD-AB-E-MA-SP-7014PipingMaterial.5.2BoltsandNutsBoltsandnutsforatmosphericstoragetanksshallconformto:ASTMA193Gr.B7completewithASTMA194Class2HnutsforsweetserviceASTMA193GR.B7McompletewithASTMA194Class2HMnutsforsourservice5.3GasketsThematerialofGasketsshallbeaccordancewithSD-AB-E-MA-SP-7014PipingMaterial.Gasketscompressedcomposition:1/16”thickuptoandincluding18"1/8”thicklargerthan18"5.4GroundingTheframeshallbeconnectedtothepowersystemgroundinggrid,usinggroundTapsconsistingofminimum20#AWG,greenTWinsulatedstrandedcoppercable.DIMENSIONALTOLERANCETheproposalofthetolerancesgivenasfollowingsistoproduceaatmosphericstoragetanksofacceptableappearance.6.1DimensionaltoleranceofcylindricaltanksCylindricaltanksincludedieselfueltanks.6.1.1EllipticandconicheadThethicknessofellipticandconicheadafterformationshallnotbelessthan90percentofnormalthickness.TheformationdimensionaltoleranceshallnotexceedtheallowablevaluegivenasTable6.1.1andFigure6.1.1.Figure6.1.1.aFigure6.1.1.bTheallowableofdimensionaltoleranceafterformationTable6.1.1Diameter(mm)from2600to3199from3200to4000ΔDi(mm)≤6≤6Dimax-Dimin(mm)≤9≤10bi(mm)≤4≤4Δh2(mm)-3to+5-3to+5Δh1(mm)≤16≤20ΔH(mm)≤7≤7Note:h1:Theheightofcurvedsurfaceofelliptichead;Δh1:Thehightoleranceofcurvedsurfaceofelliptichead;h2:Thelatitudeofcylinderofellipticandconichead;Δh2:Thelatitudetoleranceofcylinderofellipticandconichead;H:Thetotalheightofellipticandconichead;ΔH:Thetotalhightoleranceofellipticandconichead;Di:Theinsidediameterofellipticandconichead;ΔDi:Theinsidediametertoleranceofellipticandconichead;Dimax:Themaximumdiameterofmeasurement.Dimin:Theminimumdiameterofmeasurement;bi:Concavityandconvexofellipticandconicheadsurface;6.1.2CylinderThethicknessofcylinderafterformationshallnotbelessthan90percentofnormalthickness.ThedimensionaltoleranceofdifferentshownasFigure6.1.2betweenmaximumandminimumdiameterofmeasurementinthesamesectionafterweldingshallnotexceed0.5percentofnormaldiameter.Figure6.1.2Misalignmentincompletedcylindershallnotexceed2.5mmforthelongitudinalwelding,and2mmforcircumference.Theedgeformedbylongitudinalbutt-weldingjointsofcylinder,shallbemeasuredbyoutsideandinsidetempletwhosechordhasalengthof1/6timesDiandminimum300mm,thevalueofE(shownasFigure6.1.3)shallnotexceed()mm.Theedgeformedbycircumferentialbutt-weldingjointsofcylinder,shallbemeasuredbysteelstraightedgewhichhasalengthofminimum300mm,theEshallnotexceedthevaluementionedabove(shownasFigure6.1.3).Figure6.1.3.aFigure6.1.3.b6.2RectangletanksRectangletanksincludesumptanks,dieseldaytanks.6.2.1ShellplateThedimensionaltoleranceofshellplateinedgelengthshallnotexceed±2mm,diagonallinelengthshallnotexceed±3mm;6.2.2FabricationTheshellplate(includingsidewallandbottomplate)shallbereinforcedbyreinforcementinordertoreduceconcavityandconvexofshellplate.Theconcavityandconvexshallnotexceed10mm.6.3VerticalcylindricalfixedrooftankThistypetankincludestreatedwatertanks.6.3.1ShellThebuttweldingshallbeappliedinshell,misalignmentincompletedshellshallnotexceed0.5mmforthelongitudinalandcircumferencewelding,andthecontinuelengthofmisalignmentareashallnotexceed100mm.Thedimensionaltoleranceofshellplateinedgelengthshallnotexceed±2mm,diagonallinelengthshallnotexceed±3mm;TheConcavityandconvexofshellsurfaceshallnotexceed10mm.Theheighttoleranceshallnotbeexceedthe0.5percentofthetotalheight,theverticalityshallnotbeexceed0.4percentofthetotalheight,andnotexceed50mm.6.3.2BottomThetankbottomshallbeflat,lapjointshallnotbeacceptable.TheConcavityandconvexofbottomsurfaceshallnotexceed2percentofthedeformationlength,andnotexceed50mmafterwelding.6.3.3FixedroofConicroofshallbeapplied,lapjointshallnotbeacceptable.Thetoleranceshallbeaccordancewith6.1.1conichead.6.3.4StairwayStairwayshallbenecessaryforverticalcylindricalfixedrooftank,andthedimensionshallbeaccordancewithAPPENDIXDofAPISpec.12FShopWeldedTanksforStorageofProductionLiquids.7.0FABRICATION7.1Welding7.1.1ProceduresandQualificationsWeldingshallnotbeperformedpriortoCPECC'sapprovalofproceduresandqualifications.SD-AB-E-MA-SP-7002EquipmentWeldingcodesareaminimumrequirement.7.1.2CleaningAllburns,projectionsofweldmetal,weldscaleandspattershallbecompletelyremoved.7.1.3Forinternallycoatedtanks,lapweldingisnotpermittedforsurfacestobeinternallycoated.Internalsurfacesandweldingshallbefreeofsharpcornersandporosity.7.2CoatingSurfacepreparationandcoatingshallconformtoSD-AB-E-MA-SP-7008Above-groundpipelineandequipmentcoatingmaterialinstations.7.2.2InternalCoatingasperSD-AB-E-MA-SP-7008Above-groundpipelineandequipmentcoatingmaterialinstations.7.3InsulationThedieselfueltanksanddieseldaytanksshallbeinsulatedinaccordancewithSD-AB-E-MA-SP-7007Insulation.8.0STRUCTURAL/FOUNDATION8.1SpecificationsandCodesAllstructuresshallconformtoSD-AB-M-CO-CI-0001Civilconstructionprocedure.8.2Ladders,PlatformsandRailingsTheSuppliershallmeettherequirementsofAPPENDIXDofAPISPEC.12F.8.3FoundationFoundationdesignshallbeinaccordancewithSD-AB-M-CO-CI-0001Civilconstructionprocedure9.0INSPECTIONANDTESTING9.1General(a)SupplierisresponsibleforinspectionandtestingbuttheOWNER/CPECCreservestherighttoinspectthetanksatanytimeduringfabricationtoensurethatmaterialandworkmanshipareinaccordancewiththegoverningcodesandthisspecification.(b)Allmaterialsshallhavetracebility.(c)SuppliershallhaveCPECCapprovedmanufacturingsequences,inspectionandtestingprocedures.9.2Radiographs(a)Radiographshallbeappliedforbuttweldedjoints.ThelengthcoveredbyRTshallnotbeless20%oftotallengthforlongweldingandshallbe100%forjunctions.AllradiographstakenduringfabricationshallbeavailabletoOWNER/CPECCandOWNER/CPECCreservestherighttoapprovefinalradiographsandrequestadditionalradiographs.9.3HydrotestingandOtherNDETheattachmentweldingaroundallnozzlesandtheirreinforcementsshallbeinspectedbymagnetic-particlemethod.Thefreshwaterrequiredforhydrotestingandthetemperatureofwaterfortestingshallnotbelowerthan50C.ThepressureofhydrotestingshallbeaccordancewithDATASHEET.IfnotspecifiedinDATASHEET,thepressureshallbeinaccordancewithAPI12F,buttankshallbefullofwater.9.3.4Whenwaterisintroducedintotank,theairstayingintankshallberemovedthroughventing,ventshallbeinstalledonthetopoftankandtheoutsidesurfaceoftankshallbekeptdryduringhydrotesting.9.3.5Thetestpressureshallraiseslowly,andafterreachingthevaluespecified,thepressureshallbekeptfor1hour.Alljointsandconnectionsshallbeinspected.Ifleakagearefound,thedefectsshallberepairedandhydrotestingshallberepeatedagain.Afterhydrotesting,waterintankshallbedrainedimmediately,andtankshallbewipedbyclothtogetdry.10.0CLEANINGAfterfabrication,alllooseforeignmaterialsuchassand,scale,weldspatterandcuttingchipsshallberemovedfromtheinsideandtheoutside.Thesuppliershallmakeavisualinspectiontomakesurethatpropercleaninghasbeenaccomplished.11.0CALIBRATIONREQUIREMENTSThecalibrationofatmosphericstoragetanksshallbeinaccordancewithAPIStd2550MethodForMeasurementandCalibrationofUprightCylindricalTanks.12.0QUALITYANDRECORDINGDOCUMENTREQUIREDTOSUBMIT12.1AnInspectionandTestPlan(ITP)shallbepreparedbySupplierfortestsrequiredbyspecificationsordatasheets.12.2Suppliershallconductitsstandardshoptests,inadditiontootherspecifictestsrequiredbyspecificationsordatasheets.12.3Suppliershallrecordtestresultslistedbelowandothertestdocumentation.Suppliershallmaintainarecordofshoptestdataforatleast18monthsafterdateofshipment.CertifiedcopiesoftestdatashallbesubmittedtoOWNER/CPECC.HydrostaticorpneumatictestprocedureNondestructivetestproceduresWeldingprocedureforshop,field(ifany)andrepairwelds;welderqualificationSurfacepreparationandpaintingprocedure(shopandfields)RepairprocedureCodecompliancecertificateHydrostatictestcertificateCodedatareportsTestrecordsfornondestructivetestingMaterialtestcertificatesInspectionandtestplanMaterialtestcertificates(includingimpacttesting)Calibrationtable13.0EQUIPMENTTAGGINGEachcompletetanksshallbeprovidedwithacorrosionresistantnameplatesecurelyattachedtoabracketwhichisfixedtothetanksshellandsolocatedthatitisreadilyvisibleandaccessibleafterinstallation.Insulatedtanksshouldhaveonepiecenameplatebracketswithenoughprojectiontoinsulationbyatleast25mm.Thisnameplateshallcontainthefollowingdata:(a)Manufacturer'sname;(b)Manufacturer'sserialnumbers;(c)Yearbuilt;(d)Nominalcapacity;(e)ErectionandOperatingweight;(f)Thicknessofheads,cylinder,shell,bottomandsidewall;(g)Corrosionallowance;(h)Designtemperature;(i)Equipmentnumber(j)LiquidtypeTheequipmentnumberofatmosphericstoragetanksisshownasTable13.0.Table13.0EquipmentnumberofatmosphericstoragetanksatmosphericstoragetanksequipmentnumberdieselfueltanksTK-28001A,TK-28001B,TK-29001A,TK-29001BdieseldaytanksTK-28002A,TK-28002B,TK-29002A,TK-29002BsumptanksTK-28003,TK-29003treatedwatertanksTK-28051,TK-2905114.0PREPARATIONFORSHIPMENTTheshopfabricatedtanksshallbedriedandpreparedforshipmentinaccordancewithgoodfabricationpracticesandapplicablespecifications.Theshopfabricatedtanksshallbepackedinaccordancewiththesizing,structure,weight,shipmentdistanceandtransportpattern(byrailway,highway,waterandair),etc.Thepackageshallbestrongenoughtowithstandloadandunloadmanytimes,andtoarriveatdestinationsafely.Theshopfabricatedtanksshallbeshippedintegrally,andmaybeshippedsegmentallybythelimitationoftransport.Themeansofsegmentationshallbeinaccordancewithcharacteristicoftanksandlocaltransportregulations.Theshoptankstobeshippedintegrallyorsegmentallyshallbecommonlypackedbarely;(b)cleanedanddriedbeforeshipment;(c)allnozzlesshallbesealedbysteel,wood,plasticorrubbercoverboard.Thecouplingflangesshallbefastenedbyboltswithboardbetweenthem.