ASME换(取)证产品的设计

1971.3-19940574-811824832005-04-042005-05-24==============================================================================ASME315207ASMEASMETH49A1003-6490200502-0027-060ASMEASMEASMEASMEASME2004ASME1GB150ASMEASMEASMEⅧ1ASMEASME12ASME31220056ChemicalEngineeringDesignCommunicationsVol.31No.2Jun.20051ShellOperatingpressure/kPa1200Designpressure/kPa1300Operatingtemperature/℃160Designtemperature/℃180Operatingmedium/℃GASCH4ect.PositionHorizonVolume/m32.77Diameter/mmI.D.1100Length/mm2550mmT.L.toT.L.Thelowesttemperatureofvesselbeingoperated/℃-10Corrosionallowance/mm2ErosionormechanicalabrasionallowanceNotrequiredTypeofhead2:1EllipsoidalheadHeattreatmentNotrequiredTypeofsupportsSaddle2ASME12mmSA-516Gr.60N110mmmmkPa21LoadingInternaldesignpressureWeightofthevesselandnor-malcontents&undertestconditionsVesselsupports-saddlesDateCodeInsidediameterSpecialServiceCapacityDesigntemperatureDesignpressureCorrosionallowanceMin.designtemperatureect.2UW-12ABUW-3aABUW-11UW-1231ASMEⅡD2UG-16btrs13UG-27c1trs24UG-27c2trs35trs1trs2trs31Symbolsdefined2MaterialselectedforshellisSA-516Gr.60.tas=12S=117900@180℃Sec.ⅡPartDTable1A3Min.requiredthk.trs1=4.44Min.requiredthk.forcircumferentialstresslongitudinaljointefficiencyE=0.85trs2=9.225Min.requiredthk.ForlongitudinalstressCircumferentialJointefficiencyE=0.85trs3=5.576Themax.thk.requiredfromabove345trs=9.227Theactualthk.ofshellincludingC/Atas=12mmissufficienttobethethk.ofshell.41ASMEⅡD2UG-16btrh13UG-32dtrh24trh1trh2trh5UG-32b1SymbolsdefinedandMin.requiredThk.of2:1Semi-ellip-soidalheadafterformingis10mm2MaterialselectedforshellisSA-516Gr.60.tas=10mmS=117900@180℃Sec.ⅡPartDTable1A3Min.requiredthktrh1=4.44Min.requiredthktrh2=9.25Themax.thk.requiredfromabovetrh=9.26Min.requiredthk.forsphereheadtrhsp=5.287trh=5.287/0.85=6.22trhthatsOK7Theactualthk.ofheadincludingC/Atah=10mmtrhissufficienttobethethk.ofhead823125ASMEB16.5D1A2-1MaterialselectedforNozzleFlangeisSA-105class150#ASMEB16.5-19962Materialspec.SA-105FlangematerialGr.No.1.1Table1A-ASMEB16.5-19963Pressure-temp.ratingofFlangeMat.Gr.No.1.1class150Temp.on180℃Table2→Themax.allowablepressureis1467kPa4Allowablepressureis14671300DesignpressureSose-lectedFlangesareacceptabletomeetthedesigncondition.61ASMEⅡD2UG-45atrn1UG-27c1trn113UG-45btrn2UG-16btr1UG-27c1tr21tr1tr2trn24UG-45b4trn3trn2trn3trn45trn1trn4UG-45atrnUG-27c1trn1UG-45b1Symbolsdefined&definedNozzlesizeNPS8Sch802MaterialselectedforshellisSA-106Gr.BS=117900@180℃Sec.ⅡPartDTable1A3Min.requiredthk.forcircumferentialstresslongitudinaljointefficiencyE=1trn1=3.14Min.requiredthk.tr1=4.4Min.requiredthk.forcircum-ferentialstresslongitudinaljointefficiencyE=1tr2=8.13Min.requiredthk.Trn2isthelargerfromabovetrn2=8.135ForNPS8thethk.ofstandardwallpipeis8.18thethk.ofSch80is12.7@ASMEB36.10M.∴trn=8.18*0.875+2=9.166Determinedthesmallerfrom4&5trn4=8.137Determinedthelargerfrom3&6trn=8.13Theactualthk.ofnozzleneckplusC/Atan=12.7*0.875=11.1trnissufficientthedesigncondition71UG-36c3a2dRn+t+t{n2.5t2.5tn+tcUG-40{34UG-3751Diameteroftheholed=197.7accordingtoUG-36c3athereinforcementofNozzleshallbecalculated2Symbolsdefinedforreinforcementcalculated3Calculatedthemin.requiredthk.forshellwheretheholeistr=8.134ArearequiredA=1607.3mm25AreaavailableinshellA1=369.7mm2themax.of369.7&77.42AreaavailableinnozzleprojectingoutwardA2=370mm2themin.of589&370AreaavailableinnozzleinwardA3=0mm25AreaavailableinshellAreaavailableinoutwardweldA41=36mm2AreaavailableinouterweldA42=100mm2AreaavailableininwardweldA43=0mm26∵A1+A2+A3+A41+A42+A43A∴Thenozzleshouldbereinforcement.7AreaavailableinelementA5=2170.8mm28∵A1+A2+A3+A41+A42+A43+A5A∴Thereinforcementissufficient8UG-15bUW-16.1cUW-16b1AccordingtoUW-15bstrengthcalculationarenotre-quiredfornozzleandattachmentweldsjointtypeofFig.UW16.1sketchescforpressureloading2SymbolsdefinedasFig.UW16.1sketches3AccordingtoUW-16btministhesmallerof19mmorthethk.ofthethinnerofthepartsjointtmin=124AccordingtoUW-16btcisnotlessthanthesmallerof6mmor0.7tmintc=65Sothesizeofnozzleweldstrw=8.56Verificationtaw=108.5=trwthatsOK7Reinforcementplatetoshelltmin=6tc=8.6verficationtaw=10mmtrwthatsOK922ASME291ThecompletedvesselshallbehydrostaticallytestedperUG-99b.2HydrostatictestpressurecalculationForshell&headSA-516Gr.60pt=1690kPaFornozzleSA-106Gr.Bpt=1690kPaForflangeSA-105pt=1690kPa10SW6-98ASMEThk.calculationofsaddleforVesselisaccordingtoGB150-198911TableUCS-5612UCS-795%1Headfordoublecurvature%extremefiberelongation=75tRf1-RfR()0=4.31%5%∴Thecoldformedheadneednotbestressrelievedafterforming2ShellForsinglecurvature%extremefiberelongation=50tRf1-RfR()0=1.54%c5%∴Thecoldformedshellneednotbestressrelievedafterforming3ShellofmanholeForsinglecurvature%extremefiberelonga-tion=50tRf1-RfR()0=3.81%5%∴Thecoldformedshellofmanholeneednotbestressrelievedaf-terforming13UG-20fUCS-66AccordingtoUG-20fthefollowingrequirementsshallbesat-isfied1ThematerialsforshellheadandnozzleareallbelongedtoP-No.1Gr.No.1CurveBandC.andtheirthicknessarenomorethan1inchinaccordancewithUCS-66.2DesignTemperatureis-10℃～180℃whichisnowarmerthan343℃norcolderthan-29℃.3Thether