ASME中国制造-中英文计算书-永业

DESIGNCALCULATIONSOFN2STORAGETANK氮气储罐设计计算书DesignCode:ASMECodeSectionⅧDivision12010Edition&2011Addenda设计规范：ASMEⅧ-12010版及2011增补（英文）DrawingNo./Rev.图号/版本:YY12-01-00ProductNo.产品编号:A2012001Doc.No.:文件号：DCS-12011REVISION0FirstissueCONTENT目录Cover封面 1Content目录 21.Designparametersandthecondition设计参数和条件 32.Mainmaterialandallowablestresses主要的材料选择及其许用应力 33.StrengthCalculations强度计算 43.1Calculationofshellwallthickness壳体厚度计算 43.2Calculationofheadswallthickness封头厚度计算 53.3Calculationofpipes接管计算 63.4Reinforcementrequiredofopening开孔所需的补强计算 93.5Calculationforfilletweldingsizeofpipe接管角焊缝尺寸计算…………103.6Calculationforflangetonozzleneckwelds法兰与接管颈部的焊缝计算…113.7Calculationforfilletweldingsizeoflug吊耳角焊缝尺寸计算 134.SelectionofStandardParts标准零部件的选择 145.HydrostaticTestingPressure液压试验 156.JudgmentforImpactTestingExemptions判断是否需要冲击试验 156.1Mainmaterial主要材料 156.2OtherMaterial其他材料 167.JudgmentforPostColdFormingHeatTreatmentRequirement判断冷成形后是否需要进行热处理 188.JudgmentforPostweldHeatTreatment判断是否需要焊后热处理 199.NDErequirement无损检测要求………………1910.Inspectionopening检查孔………2011.Overpressureprotectivedevice超压保护装置……20Appendix附录A.CalculationofLegSupports支腿计算 20B.VesselloadingrequirementsASMESectⅧDiv.1(UG-22&UG-54)容器载荷要求ASME第Ⅷ-1UG-22&UG-54 23DescriptionDataMediumN2StorageTankDesignInternalPressure设计内压MPa1.3OperatingPressure操作压力MPa1.12DesignTemperature设计温度℃50WorkingTemperature工作温度℃5~25MDMT最低设计金属温度℃0CorrosionAllowance腐蚀余量mm0Normalvolume公称容积m30.35Jointefficiency焊接系数Heads封头0.85Shell壳体0.85Mainmaterials主要材料Heads封头SA-516MGr.485Shell壳体SA-516MGr.485Flange法兰SA-105MPipe接管SA-105MOthers其它/Designparametersandthecondition设计参数和条件Mainmaterialandallowablestresses主要材料及其许用应力Location位置Material材料Max.allowancestressvalueatD.T.设计温度下最大允许的工作压力Heads/Shell壳体/封头SA-516MGr.485138MPaFlange法兰SA-105M138MPaPipe接管SA-105M138MPaNote:abstractedfromASMESec.Ⅱ2010ED.&2011ADD.PartD,Table1A.注：摘自ASME第Ⅱ卷D篇2010版及2011增补，表1A。

3.StrengthCalculations强度计算3.1Calculationofshellwallthickness壳体壁厚计算checkingcondition校核条件:UG-27(c)(1)t=8mm<R/2=300/2=150mmDesignformula:设计公式1）Circumferentialstress环向应力P=1.3MPa<0.385SE=0.385×138×0.85=45.16MPatr1=PRSE-0.6P2）Longitudinalstress纵向应力P=1.3MPa<1.25SE=1.25×138×0.85=146.63MPatr2=PRParameter参数Symbol符号Value数据Unit单位Calc.results计算结果DesignInternalPressure设计内压P1.3MPaDesignTemperature设计温度T50℃CorrosionAllowance腐蚀余量C0mmJointefficiency焊接系数E0.85Insideradiusoftheshell筒体内半径R300mmallowancestress许用应力S138MPaRequiredthickness需要厚度tr1=1.3×300/(138×0.85-0.6×1.3)=3.347mmtr2=1.3×300/(2×138×0.85＋0.4×1.3)=1.66mmmaketr=tr2=3.347取其中最大值故tr=tr1=3.347Designthickness设计厚度3.347+0=3.347mmMinwallthickPluscorr.Allow最小壁厚+腐蚀余量根据UG-16(b)1.5+0=1.5mmRequiredmin.thickness要求最小厚度trn3.347mmNominalthickness名义厚度8mm(undertoleranceconsidered公差考虑在内)>3.3473.2Calculationofheadswallthickness封头厚度计算(Underinternalpressure)Theminoraxis(insidedepthoftheheadminustheskirt)equalsone-fourthoftheinsidediameteroftheheadskirt.1/2短轴（封头的内深度减去直边段的长度）等于封头直边段内径的1/4的半椭圆形的凸形封头Designformula:设计公式ts/L=7.2/0.9D=7.2/0.9×600=0.015>0.002(ts=7.2mm)1)tParameter参数Symbol符号Value数据Unit单位Calc.results计算结果DesignInternalPressure设计内压P1.3MPaDesignTemperature设计温度T50℃CorrosionAllowance腐蚀余量C0mmJointefficiency焊接系数E0.85Headdiameter(lesscorrosionallowance)封头直径（减去腐蚀余量）D600mmAllowancestress许用应力S138MPaNominalthickness名义厚度8mmRequiredthickness需要厚度tr1=1.3×600/(2×138×0.85-0.2×1.3)=3.33mmDesignthickness设计厚度3.33+0=3.33mmMinwallthickPluscorr.Allow最小壁厚+腐蚀余量根据UG-16(b)1.5+0=1.5mmRequiredmin.thickness要求最小厚度trn3.33mmNominalthickness名义厚度8mm(undertoleranceconsidered公差考虑在内)＞3.33mmAfterformingtheminimumthickness成型后的最小厚度7.2mm＞3.33mmWhenaskirtisprovided,itsthicknessshallbeatleastthatrequiredforaseamlessshellofthesameinsidediameter.如果封头带直边段时，其厚度至少应等于相同内径无缝壳体所需的厚度。UG-32(l)tr2=PRSE-0.6P+C=1.0×451Actual8mm＞2.842mmAccordingUG-32(l),theminimumthickness8mmofskirtisgreaterthan2.842mmthatrequiredforaseamlessshellofthesameinsidediameter.It’sOK根据UG-32（l），封头直边段实际最小厚度取值8mm大于相同内径无缝壳体要求厚度2.842mm，满足要求。Calculationofpipes接管计算Thetype&sizesofpipesasfollow：Symbol符号DN公称厚度Nom.Th.mm公称壁厚Service用途Spec标准号N1806Inlet进气口ASMEB16.5N2806Outlet出气口ASMEB16.5N3806DRAIN疏水口ASMEB16.5Designformulaforpipe:接管计算公式ta=trnDesignformulaforcylindricalshell:圆柱形壳体计算公式tb1=trs+C=PRSEDesignformulafor2:1EPhead:椭圆封头计算公式

tb1PipeneckNozzleofshell（N2）筒体接管厚度（N2）DESCRIPTION描述Symbol符号Value数据Unit单位Calc.results计算结果DesignInternalPressure设计内压P1.3MPaMaterialofshell筒体材料SA-516MGr.485Materialofpipeneck接管材料SA-105MAllowancestressvalueofshell筒体许用应力SV138MPaAllowancestressvalueofpipe接管许用应力Sn138MPaCorrosionAllowance腐蚀余量C0mmInsideradiusoftheshell壳体内半径R300mmJointefficiency焊接系数E1.0Outsideradiusofthepipe接管外半径RO44.45mmCalc.thick.计算厚度ta=1.3×44.45/(138×1+0.4×1.3)+0=0.417mmAppendix附录11-1(a)(1)Min.thicknessofpipeneck接管颈部最小厚度tb1=1.3×300/(138×1-0.6×1.3)+0=2.84mm2.84mm＞1.5+0mm=1.5mmUG-16(b)tb1=2.84mmtb2isforexternalpressurevessel.Itisnotneedbecheckedhere.tb2用于外压容器，本处不必校核tb3=4.80+0=4.80mmTable表UG-45Takesmaller两者取小tb=min(tb3ortb1)=2.84mmMax.thickofpipeneck接管颈部最大厚度ta=0.417+0=0.417mmtb=2.84mmTakelarger两者取大tUG-45tUG-45=2.84mmReq.thicknessof要求的厚度tUG-452.84mmNominalthickofpipe接管名义厚度tn=6.0mm5.9mm＞2.84mm(Pipeneckismachinedfromforging接管锻件加工)3.3.2PipeneckNozzleofhead（N1\N3）封头接管厚度（N1\N3）DESCRIPTIONSymbol符号Value数据Unit单位Calc.results计算结果DesignInternalPressure设计内压P1.3MPaMaterialofhead封头材料SA-516MGr.485Materialofpipeneck接管材料SA-105MAllowancestressvalueofhead封头许用应力SV138MPaAllowancestressvalueofpipe接管许用应力Sn138MPaCorrosionAllowance腐蚀余量C0mmInsidediametreroftheheadskirt封头直边段内半径D300mmJointefficiency焊接系数E1.0outsideradiusofthepipe接管外半径Ro44.5mmCalc.thick.计算厚度ta=1.3×44.45/(138×1+0.4×1.3)+0=0.417mmAppendix附录11-1(a)(1)Min.thicknessofpipeneck接管颈部最小厚度tb1=1.3×600/(2×138×1-0.2×1.3)+0=2.83mm2.83＞1.5+0=1.5mmUG-16(b)tb1=2.83mmtb2isforexternalpressurevessel.Itisnotneedbecheckedhere.tb2用于外压容器，本处不必校核tb3=4.80+0=4.80mmTableUG-45Takesmaller两者取小tb=min(tb3ortb1)=2.83mmMax.thickofpipeneck接管颈部最大厚度ta=0.417+0=0.417mmtb=2.83mmTakelarger两者取大tUG-45tUG-45=2.83mmReq.thicknessof要求的厚度tUG-452.83mmNominalthickofpipe接管名义厚度tn=5.9mm5.9mm(Pipeneckismachinedfromforging接管锻件加工)＞2.83mm3.4Reinforcementrequiredofopening开孔所需的补强计算Therequiredminimumthicknessoftheshellis3.347mm,andrequiredthicknessofthehead3.33mm,accordingtoUG-36(c)(3)(a),thesizeofnozzleN1、N2、N3islessthan89mm.Theyarenotrequiredforadditionalreinforcement.壳体要求的最小厚度是3.347mm，封头压的最小厚度为3.33mm。按照UG-36(c)(3)(a)，接管N1、N2、N3的管径不大于89mm，这些接管开孔不要求另外补强。接管N2的开孔补强计算如下(演示)。DESCRIPTIONDATADesignInternalPressure设计内压P=1.3MPaMaterialofshell筒体材料SA-516MGr.485Materialofpipeneck接管材料SA-516MGr.485Allowancestressvalueofshell筒体许用应力SV=138MPaAllowancestressvalueofpipeneck接管许用应力Sn=138MPaThicknessofshell筒体有效壁厚:t=8-0=8mmt=8mmThicknessofpipe接管有效壁厚:tn=6-0=6mmtn=6mmCalculatedradiusofpipe接管计算内半径:Rn=(88.9-2×6)/2+0=38.45mmRn=38.45mmCalculatedthicknessofpipewall接管壁计算厚度:trn=1.3×44.45/(138×1+0.4×1.3)=0.417mmtrn=0.417mmJointefficiencyoftheshellcourseunderconsideration所考虑的焊接系数E1=1.0Calculatedthicknessofshell壳体计算厚度：tr=1×300/(138×1-0.6×1.3)=2.84tr=2.84mmOpeningdiameter开孔直径:d=2Rn=2×38.45=76.9mmd=76.9mmOutsidediameterofpipe接管外径Dno=88.9mmDistancepipeprojectbeyondtheinnersurfaceofthevesselwall接管在容器内壁的伸出高度h=0mmCorrectionfactor校正系数F=1mmAngleofplanewithlongitudinalaxis平面与轴的夹角0.00degLegofoutwardweld焊角高度7mmStrengthreductionfactor:强度削弱系数 UG-37(a)fr1=Sn/Sv=138/138=1fr2=Sn/Sv=138/138=1fr3=0fr4=0Arearequiredandareaavailable所需补强面积和有效补强面积A=dtrF+2tntrF(1-fr1)=218.39mm.2A1=d(E1t–Ftr)–2tn(E1t–Ftr)(1-fr1)=396.8mm.2A1=2(t+tn)(E1t-Ftr)-2tn(E1t–Ftr)(1–fr1)=144.48mm.2Becauseweusethelargervalue,sowetakeA1=396.8mm.2取大值A2=5(tn–trn)fr2t=223.32mm2A2=5(tn–trn)fr2tn=167.49mm2Becauseweusethesmallervalue,sowetakeA2=167.49mm2取小值A41=(L1)2fr2=49mm2A1+A2+A41=613.29mm2>218.396mm2OKWhere:A=arearequired所需补强面积A1=areaavailableinshell;筒体有效补强面积A2=areaavailableinnozzleprojectingoutward;接管有效补强面积A41=areaavailableinoutwardweld;焊缝有效补强面积So,reinforcementofopeningisnotrequired.因此开孔不需另加补强3.5Calculationforfilletweldingsizeofpipe接管角焊缝尺寸计算TheweldingtypeofallpipeaccordingtoFig.UW-16.1(c),theminimumdimensionoftcshallbecheckedaccordingtoUW-16(b)接管的焊接类型依照Fig.UW-16.1(c)，最小焊角尺寸tc依照UW-16(b)进行校核RelatedSymbolsAndData相关标记和数据UW-16(b)t=Thethicknessofthethinnerofthepartjoinedbyafillet,single-bevel,orsingle-Jweld角焊缝，单边V型缝或单边J型缝连接的较薄件的厚度tmin=thesmallerof3/4in.(19mm)ort3/4in.(19mm)或t两者取小tc=notlessthanthesmallerof1/4in.(6mm)or0.7tmin不小于1/4in.(6mm)或0.7tmin中较小者Checklistoftheminimumdimensionoftcforallpipe所有管tc最小尺寸检查Pipesymbolt(mm)tmin(mm)0.7tmin(mm)tc(mm)Tc(mm)(actual)ConclusionN1\N2\N36(8;6)6(19;6)4.2≥4.2(6;4.2)4.949satisfactory3.6Calculationforflangetonozzleneckwelds法兰与接管颈部的焊缝计算依据UW-21要求ThisparagraphisbasedonUW-21接管尺寸规格:DN80壁厚6.0mmthenozzleside：DN80thickness6.0mm依照UW-21（b）及图UW-21，角焊缝尺寸：AccordingtoUW-21（b）andFig.UW-21，filletweldlegsize：（1）nozzlethickness=6mm,实际为6mm=6mm满足要求Actual：6mm=6mmOK1.4X6=8.4mm;法兰颈箍厚度为13.15取8.4mmtake8.4mm实际为8.5mm＞8.4mm满足要求Actual：8.5mm＞8.4mmOK3.7Calculationforfilletweldingsizeoflug吊耳角焊缝尺寸计算吊耳简图StandardbasisHG/T21574-2008”Chemicalequipmentliftinglugsandengineeringtechnicalspecification”按HG/T21574-2008《化工设备吊耳及工程技术要求》计算MaterialofLug吊耳材料SA-516MGr.485DesignTemperature设计温度50℃LugsPlateAllowableTensileStress吊耳板许用拉应力［σL］138MPaLugsPlateAllowableYieldStress吊耳板许用屈服应力［σs］：260/1.6=162.5MPaLugsPlateAllowableShearStress吊耳板许用剪应力［τL］：［τL］=0.4*［σS］=0.4×162.5=65MPaLugsPlateAllowableBendStress吊耳板许用弯曲应力［σb］：［σb］=0.66*［σS］=0.66×162.5=107.25MPaLugsPlateCombinedAllowableStress吊耳板组合许用应力［σab］：［σb］=0.9*［σS］=0.9×162.5=146.25MPaShellMaterial筒体材质：ShellAllowableTensileStress筒体材质许用拉应力［σH］：138MPaShellAllowableYieldStress筒体材质许用屈服应力［σs］：162.5MPaFilltWeldCoefficient角焊缝系数：:Φa=0.7Movable-LoadCombinedCoefficient动载综合系数K=1.8EquipmentEmptyWeight设备重量（空重）G=242kgLiftingDesignLoad起吊设计载荷Z=KxG=1.8X242=435.6kgLugsQuantity吊耳数量n=2SingleLugDesignLoad单个吊耳设计载荷LS=Z/n=1494/2=747kgAccelerationofGravity重力加速度g=9.806mS-2DistanceOfLiftingLugsHoleCentreLineToHeadsurfaceL-吊耳孔中心线至封头表面的垂直距离:End'sRoundArcofLiftingLugsPlate吊耳板端部的圆弧R=30CentreHoleDia.OfLiftingLugsPlate吊耳板中心孔直径D=30LengthofbottomofLugPlate吊耳板根部弧长E=180ThicknessOfLiftingLugsPlate吊耳板厚度S=8Calculatedvalues各数据计算值VerticalLoad竖向载荷Fv=Ls×g×K=747×9.8×1.8=13177.08NTransversLoad竖向载荷FH=Fv×tan30°=13177×0.57735=7608NSuspendLoad吊绳方向载荷FL=Fv/COS30°=13177.08/0.866=15216NRadialdirectionmoment径向弯矩M=FH×L=7608×46=347768N.mm=347.8N.mMaximumtensilestressofsuspendropeonLugsPlate吊耳板吊索方向的最大拉应力:σL=FH/[(2R-D)S]=15216/[(2X40-36)X10]=34.58MPa<［σL］=138MPaMaximumtensilestressofsuspendropeonLugsPlate（BiasedConservative）吊耳板吊索方向的最大剪应力（偏于保守）τL=σL=34.58MPa<［τL］=65MPaOverallareaofwelding焊缝总面积A=8x0.7x2x(20+114.8)=1509.76mm2TensilestressofLugwelding吊耳焊缝拉应力τa=Fv/A=13177.08/1509.76=8.73MPaensilestressofLuganglewelding角焊缝剪应力σa=FH/A=7608/1509.76=5.04MPaBendstressofLuganglewelding角焊缝的弯曲应力σab=6M/S[2×(L×tan20°+R)]2=6×347768/10×[2×(46×tan20°+40)]2=16.20MPaCombinationstressofLuganglewelding吊耳角组合应力σz=[(σa+σab)2+4τa2]1/2=[(5.04+16.2)2+4×8.732]1/2=27.46MPaσz<［σ］OK通过4.SelectionofStandardParts标准零部件的选择Flange:selectedinaccordancewithASMEB16.5(2009Ed.)300＃(Pressureratingcanbeatleast5.0MPaatdesigntemperature50℃)法兰:依照ASMEB16.5(2009版)300＃进行选择（设计温度为50℃Support:SelectedinaccordancewithChinesestandardJB/T4712.2-2007.支座：按照中国的标准JB/T4712.2-2007进行选择5.HydrostatictestpressureinaccordancewithUG-99(b)andUG-22(j)液压试验压力依照UG-99(b)及UG-22（j）。St=allowablestressattesttemperatureofvessel试验温度下的许用应力Sd=allowablestressatdesigntemperatureofvessel设计温度下的许用应力Pt1=1.3×MAWP×LSR+STATICHEADPt1=1.3×最大允许工作压力×最低应力系数+静压头Where:LSR=allowablestressattesttemperatureofvessel/allowablestressatdesigntemperatureofvessel式中:最低应力系数等于容器试验温度下的许用应力/容器设计温度下的许用应力PartnameMaterialSt(MPa)Sd(MPa)LSRShell,headSA-516MGr.485138138138/138=1.0FlangeSA-105M138138138/138=1.0PipeSA-105M138138138/138=1.0SA-516MGr.485Min.YieldStrengthatTestTemp.试验温度下最低屈服强度Sy=257MPaSA-105MMin.YieldStrengthatTestTemp.试验温度下最低屈服强度Sy=243.2MPaCoincidetntstaticheadactingduringthetest静压头试验时的压力:Psh=1.0（×1000kgm-3）×9.8（kgms-2）×1350(×10-3m)=13230Pa=0.01323MPaTeststaticpressure0.01323MPa,试验静压力0.01323MPaHydrostatictestpressure水压试验压力:Pt=1.3X1.3X1=1.69MPaPt1=1.3×最大允许工作压力×最低应力系数+静压头=1.69MPa+0.01323MPa=1.70323MPaThestressofshellshallandbottomellipsoidalheadischeckedinaccordancewiththeformulapriortostaticpressuretest:用公式校核筒体和下椭圆封头的应力Ts=8mmTh=7.2mmPt1=1.3×1.3×1+0.01323=1.70323MPaSs=Pt1E=1.70323X(300+0.6X8)/(8X0.85)=76.345MPa<0.9Sy=231.3MPaSoit’sOK因此通过校核5.1.2Bottomellipsoidalhead下椭圆封头SE=1.70323(600+0.2X7.2)/(1X7.2)=142.3MPa<0.9Sy=231.3MPaSoit’sOK因此通过校核ThestressofpipeN1/N2/N3ischeckedinaccordancewiththeformulapriortostaticpressuretest:用公式校核接管N1/N2/N3的应力PipeN1/N2/N3接管N1/N2/N3T=6-0=6mmSE=1.70323(38.45+0.6X6)/(6X1)=11.94MPa<0.9Sy=234MPaSoit’sOK因此通过校核6.JudgmentforImpactTestingExemptions判断是否需要冲击试验Judgmentwhethertheimpacttestisrequiredwhenmaterialsofvesselelementsareworkingatminimumdesignmetaltemperatureof0℃.受压元件在最低设计金属温度0℃下工作时，判断容器受压元件是否需要冲击试验。Mainmaterial主要材料Thematerialofthisproductconforming:UG-20(f)(1)(b)（1）P-No.1Gr.No.1and2；（2）materiallistinFig.UCS-66CurveB,andthinnerthan25mm；（3）Designtemperatureisnotmorethan345℃；（4）Thethermalormechanicalshockloadingsarenotacontrollingdesignrequirement;（5）Thecyclicalisnotacontrollingdesignrequirement。So,theyarefreefromImpactTesting.本产品材料符合：UG-20(f)(1)(b)（1）P-No.1的1、2组；（2）符合图UCS-66曲线B,并且厚度小于25mm；（3）设计温度不高于345℃；（4）热冲击和机械冲载荷击不作为控制性的设计要求；（5）循环载荷不作为控制性的设计要求。故可免除冲击试验。Shell壳体Heads封头Pipes接管N1/N2/N3Flanges法兰MaterialSpecification材料类型SA-516MGr.485SA-516MGr.485SA-105MSA-105MThickness厚度8mm8mm6mm/AppliedcurveofFigUCS-66应用曲线BBBBPerUG-20(f)依据UG-20(f)-29℃-29℃-29℃Impacttestexemptiontemperature(minimumdesignmetaltemperaturewhichimpacttestingisnotrequired)冲击试验豁免温UCS-66（c）29℃UCS-66（d）Generalnote（c）ofFig.UCS-66度（最低设计温度下冲击试验不要求）Fig.UCS-66Minimumdesignmetaltemperature最低设计金属温度0℃Conclusion（impacttestrequirement）结论（冲击试验要求）NotRequired不要求NotRequired不要求NotRequired不要求NotRequired不要求Othermaterial其余材料Lug吊耳垫板LagPad支腿护板Bracket铭牌座MaterialSpecification材料类型SA-516MGr.485SA-516MGr.485SA-516MGr.4858mm8mm8mmAppliedcurveofFigUCS-66应用曲线BBBPerUG-20(f)依据UG-20(f)-29℃-29℃-29℃Impacttestexemptiontemperature(minimumdesignmetaltemperaturewhichimpacttestingisnotrequired)冲击试验豁免温度（最低设计温度下冲击试验不要求）UCS-66（c）UCS-66（d）Generalnote（c）ofFig.UCS-66Fig.UCS-66Minimumdesignmetaltemperature最低设计金属温度0℃Conclusion（impacttestrequirement）结论（冲击试验要求）NotRequired不要求7.JudgmentforPostColdFormingHeatTreatmentRequirement判断冷成形后是否需要进行热处理AccordingtoASMECodesect.Ⅷ,Div.1UCS-79(d),therequirementthatheattreatmentshallbecarriedoutaftercoldformingisthattheresultingextremefiberelongationismorethan5%fromtheas-rolledcondition.按照ASME规范第Ⅷ卷第1册UCS-79(d)的规定，当最大纤维伸长率比轧制状态超过5%时，(冷成形的筒体,封头及其它受压元件)都应要求成形后进行热处理。Fordoublecurvature(forheads)对于双曲率零件（封头）t=platethickness 8mm板厚Rf=finalcenterlineradius 106mm最终中心线半径Ro=originalcenterlineradius ∞成形前中心线半径tremefiberelongationAccordingtoUCS-79(d):根据UCS-79(d)1ThevesselwillcontainN2,itisnon-lethalgaseoussubstances.容器内是氮气，非致命气体。2ImpactTestexemptasperUG-20(f),UCS-66(c).免除冲击试验。3Thethicknessofthepartsbeforecoldformingis8mmlessthan16mm.冷成型前厚度为8mm小于16mm。4Headthinning(封头减薄率)=（8-7.2）/8=10%Thereductionbycoldformingfromtheas-rolledthicknessisnotmorethan10%atanylocationwheretheextremefiberelongationexceeds5%冷成型后任何极限纤维伸长率超过5%的部位原轧制厚度减薄率不超过10%5Thetemperatureofthematerialduringformingwillnotintherangeof250°F。和900°F（120℃～480℃）。成型过程中，材料温度不在250°F(120℃)和900°F(480℃)之间。所以FibeElongation纤维伸长率=5.66%≤40%Shell：壳体Forsinglecurvature(forcylinders)对于单曲率零件（筒体）t=platethickness 8mm板厚Rf=finalcenterlineradius 304mm最终中心线半径Ro=originalcenterlineradius ∞成形前中心线半径extremefiberelongationAccordingtoabovecalculatingresults,theheattreatmentaftercoldformingisnotrequired根据上面的计算结果，（封头、筒体）冷成形后不需要进行热处理。8.Judgmentforpostweldheattreatment.焊后热处理的校核MaterialforshellandheadisSA-516MGr.485,t=8mm壳体和封头的材料是SA-516MGr.485，厚度是8mmAccordingtoUW-2&tableUCS-56(note2),thethicknessofshellandhead(t=8mm)islessthan32mm.sopostweldheattreatmentisnotneeded.根据UW-2和表UCS-56(note2)，壳体和封头的厚度(t=8mm)小于32mm，所以（壳体和封头）不需要进行焊后热处理。9.NDErequirement.无损检测要求1)A、B类焊接接头CategoryAandBweldedjointsTheN2isnotlethal,andboththeshellandheadare8mmthick,lessthan38mm.accordingtoASMECodeSect.Ⅷ,Div.1UW-11(a)(1)、（2），fulllengthradiographyAandBweldedjointsisnotrequired.JointoftheshellandshelltoheadareadoptedbasedonNo.(1)oftableUW-12(1).CustomerrequirescategoryAandBweldedjointsdospotradiographyexamination.氮气为无毒介质，并且壳体和封头的厚度为8mm，小于38mm。按照ASME规范第Ⅷ卷第1册UW-11(a)(1)、（2），可以不必做全部射线检测。筒体及筒体与封头A、B类焊接接头形式按表UW-12中（1）型选取，客户要求A、B类焊接接头进行抽样射线检测。Accordingly,thejointefficiencyofshellis0.85,andtheheadis0.85(tableUW-12(1)(b))综上所述，筒体的焊接接头系数取0.85，封头的焊接接头系数取0.85（表UW-12(1)(b)）。OtherscategoryweldedjointsCustomerspecificationarenotrequireinothercategoryweldedjointsdoNDE.客户技术条件不要求其它焊缝做无损检测。10.Inspectionopening检查孔AccordingtoUG-46(a)（4），serviceisnon-corrosive.Inspectionopeningcanbeomitted.介质无腐蚀，检查孔可不设置，见UG-46(a)（4）。11.Overpressureprotectivedivice超压保护装置Overpressureprotectivedivice，thesafetyvalveshallbeinstallinpipingsystembytheuser.Appendix:附录A.TheCalculationofLegSupports支腿计算StructuredesignoflegsupportisselectedperChinesestandardsJB/T4712.2-2007.Per1.2.支腿的结构设计按中国标准JB/T4712.2-2007第二部分选择。DN≥400AndDN≤1600,公称直径为DN400~1600mm600>400And600<1600Oktangentofcylindertothenominaldiameternotmorethan5L/DN≤5圆筒的切线长度与公称直径比不大于5mm1050/600=1.75≤5OkTotalheightofVesselH5000mm容器总高度不大于5000mm1834mm≤5000mmOkDesigntemperature200℃设计温度200℃50℃<200℃WindReactions,风载荷None不考虑SeismicReactions,地震载荷None不考虑PerFig3.2.1andTable2,LegSupportsselectTypeA2-600-8,ThisApplicableconditions.MaxdistancebetweentangentslinesofshellLmax=3828,按图3.2.1和表2，A2-600-8型支腿可以满足要求，允许的壳体最大切线距为3808mmactualdistanceL=1050mm,实际使用的切线距为1050mm1050mm<3828.mmOkMaxSupportingheightHmax=1000mm,最大支撑高度为1000mmactualH=500mm,实际支撑高度为500mm500mm<1000mmOkCalculationoflegsupports10.Calculationofreactionforceofsupports支座反力的计算Massofvesselitself：ml=242kg容器自重：ml=242kgMassofwaterfilledinpressuretest：m2=350kg水压试验下