氮氣緩沖罐設計計算書Rev0鍋爐及壓力容器規(guī)范

JTSS天津金泰盛世石化設備有限公司DesignCalculations設計計算書Doc.No.文件號DC-JT14-01-01Rev.No.更改號0JobNo.工作令號JT14-01DWG.No./Rev.No.圖號/更改號ASME-JT14-01-00/0Page頁數(shù)28/32PAGE28DESIGNCALCULATIONSHEETFORNITROGENBUFFERTANK氮氣緩沖罐設計計算書DesignCode:ASMECodeSectionⅧDivision12013Edition設計規(guī)范：ASME2013版第Ⅷ卷第1冊Prepared:______________Date:_____________設計日期Approved:_______________Date:_____________批準日期天津金泰盛世石化設備有限公司JTSSCONTENT目錄Cover封面1Content目錄21.Designparametersandthecondition4設計參數(shù)和條件2.Mainmaterialandallowablestresses5主要的材料選擇及其許用應力3.StrengthCalculations5強度計算3.1Calculationofshellwallthickness5筒體壁厚計算3.2Calculationofheadswallthickness6封頭厚度計算3.3Calculationofnozzles7接管計算3.4Calculationofopeningreinforcement12開孔補強計算3.5Calculationforfilletweldingsizeofnozzle15接管角焊縫尺寸計算3.6Strengthofreinforcementattachmentwelds16補強件連接焊縫的強度3.7Calculationforthestrengthoffilletweldingbetweenflangeandnozzle..18法蘭和接管處角焊縫的強度計算3.8Calculationforfilletweldingsizeoflug19吊耳角焊縫尺寸計算3.9CalculationforfilletweldingstrengthoftheattachmentofManhole…..21人孔附件角焊縫強度計算4.SelectionofStandardParts22標準零部件的選擇5.HydrostaticTestingPressure22液壓試驗6.JudgmentforImpactTestingExemptions25判斷是否需要沖擊試驗7.JudgmentforPostColdFormingHeatTreatmentRequirement27判斷冷成形后是否需要進行熱處理8.JudgmentforPostweldHeatTreatment28判斷是否需要焊后熱處理9.NDErequirement28無損檢測要求10.Overpressureprotectivedevice29超壓保護裝置Appendix附錄A.CalculationofLegSupports29支腿計算B.VesselloadingrequirementsASMESectionⅧDivision12013Edition(UG-22&UG-54)31容器載荷要求ASME2013版第Ⅷ卷第1冊(UG-22&UG-54)1.Designparametersandthecondition設計參數(shù)和條件

Description描述Data數(shù)據(jù)Medium介質Nitrogen氮氣DesignInternalPressure設計內壓MPa1.2OperatingPressure操作壓力MPa1.0DesignTemperature設計溫度℃50WorkingTemperature工作溫度℃40MDMT最低設計金屬溫度℃-10CorrosionAllowance腐蝕裕量mm1.0Normalvolume公稱容積m31.47(SeeNote)Jointefficiency接頭系數(shù)Heads封頭0.85Shell殼體0.85Mainmaterials主要材料Heads封頭SA-516MGr.485Shell殼體SA-516MGr.485Flange法蘭SA-105MNozzle接管SA-105MOthers其它/注：公稱容積計算Note：NormalvolumeCalculations1).筒體容積V1計算ShellvolumeCalculations筒體內徑Di=1000mm筒體長度H=1500mm筒體容積V1=(Di/2)2×π×H=（1/2）2×3.1416×1.5=1.12).封頭容積V2計算HeadvolumeCalculations按GBT25198-2010壓力容器封頭附錄A計算StandardbasisGBT25198-2010HeadsforpressurevesselAppendixA封頭內徑Di=1000mm封頭直邊高度h=25mmV2=V2=(π/24)Di3+(π/4)Di2h=（π/24)×13＋(π/4)12×0.025=0.13).公稱容積V計算NormalvolumeCalculationsV=V1+2×V2=1.17＋2×0.15=1.472.Mainmaterialandallowablestresses主要材料及其許用應力

Location位置Material材料Max.allowancestressvalueatdesigntemperature.設計溫度下最大允許的應力值Heads/Shell殼體/封頭SA-516MGr.485138MPaFlange法蘭SA-105M138MPaNozzle接管SA-105M138MPaNote:abstractedfromSectionⅡ2013Edition注：摘自第Ⅱ卷D篇2013版3.StrengthCalculations強度計算3.1Calculationofshellwallthickness筒體壁厚計算3.1.1Checkingcondition校核條件:R=500+1=501t=8mm<R/2=250.5mmUG-27(c)-(1)(23.1.2Designformula:設計公式1）Circumferentialstress環(huán)向應力P=1.2Mpa<0.385SE=0.385×138×0.85=45.16MPaUG-27(c)(1)2）Longitudinalstress縱向應力P=1.2Mpa<1.25SE=1.25×138×0.85=146.63MPaUG-27(c)(2)Parameter參數(shù)Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度T50℃Corrosionallowance腐蝕裕量C1.0mmJointefficiency焊接系數(shù)E0.85Insideradiusoftheshell筒體內半徑R501mmAllowancestress許用應力S138MPaRequiredthickness需要厚度tr1=1.2×501/(138×0.85-0.6×1.2)=5.157mmtr2=1.2×501/(2×138×0.85+0.4×1.2)=2.557mmmaketr=tr1=5.157Designthickness設計厚度5.157+1.0=6.157mmMinwallthickpluscorrosionallowance最小壁厚+腐蝕裕量ForUG-16(b)1.5+1.0=2.5mmRequiredmin.thickness要求最小厚度trn6.157mmEffectivethickness有效壁厚8mm(undertoleranceconsidered)＞6.157mm3.2Calculationofheadswallthickness封頭厚度計算(內壓)(Underinternalpressure)Theminoraxis(insidedepthoftheheadminustheskirt)equalsone-fourthoftheinsidediameteroftheheadskirt.1/2短軸（封頭的內深度減去直邊段的長度）等于封頭直邊段內徑的1/4的半橢圓形的凸形封頭Checkingcondition:校核條件ts/L=7.2/0.9D=7.2/(0.9×1002)=0.008.＞0.002Designformula:設計公式UG-32(d)(1)Parameter參數(shù)Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度T50℃Corrosionallowance腐蝕裕量C1.0mmJointefficiency焊接系數(shù)E0.85Headdiameter(lesscorrosionallowance)封頭直徑（減去腐蝕裕量）D1002mmallowancestress許用應力S138MPaNominalthickness名義厚度8mmRequiredthickness需要厚度tr1=1.2×1002/(2×138×0.85-0.2×1.2)=5.131mmDesignthickness設計厚度5.131+1.0=6.131mmMinwallthickpluscorrosionallowance最小壁厚+腐蝕裕量ForUG-16(b)1.5+1.0=2.5mmRequiredmin.thickness要求最小厚度trn6.131mmEffectivethickness有效壁厚8mm(undertoleranceconsidered)＞6.131Afterformingtheminimumthickness成型后的最小厚度7.2mm＞6.131mmWhenaskirtisprovided,itsthicknessshallbeatleastthatrequiredforaseamlessshellofthesameinsidediameter.UG-32(l)如果封頭帶直邊段時，其厚度至少應等于相同內徑無縫殼體所需的厚度。AccordingtoUG-27(c)(1)Actualtr1=8mm＞5.379mmAccordingUG-32(l),theminimumthickness8mmofskirtisgreaterthan5.379根據(jù)UG-32(l)，封頭直邊段實際最小厚度取值8mm大于相同內徑無縫殼體要求厚度5.379mm，滿足要求。3.3Calculationofnozzles接管計算Thetype&sizesofnozzlesasfollow：Symbol符號Outerdiameter(mm)外徑Nominalthickness(mm)公稱壁厚Service用途N160.35.54NitrogenInlet氮氣進口N233.46.35Pressuregauge壓力表接口N360.35.54NitrogenOutlet氮氣出口N433.46.35Drain排凈口N533.46.35PressureGauge壓力表口M4578Manhole人孔Nozzleneckthickness接管頸部厚度：UG-45Foraccessopeningsandopeningsusedonlyforinspection對于出入孔和僅用于檢查的開孔：tUG-45=taForothernozzle對于其接管：tb=min[tb3,max(tb1,tb2)]tUG-45=max(ta,tb)Designformulafornozzle:接管計算公式t=PRo/(SE+0.4P)Appendix附錄11-1(a)(1)Designformulaforcylindricalshell:圓柱形殼體計算公式t=PR/(SE-0.6P)UG-27(c)(1)Designformulaforellipsoidalhead:橢圓形封頭計算公式t=PD/(2SE-0.2P)UG-32(d)(1)3.3.1NozzleneckthicknessfornozzleN1andN3接管N1和N3的厚度：AccordingtoASMEB36.10M,thenozzleparameterasfollow:根據(jù)ASMEB36.10M標準，接管參數(shù)如下：Outerdiameter外徑:60.3mmWallthickness壁厚:5.54mmRelatedsymbolanddata相關符號及數(shù)值DESCRIPTION描述Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度50℃Materialofshell筒體材料SA-516MGr.485Materialofnozzleneck接管材料SA-105Allowancestressvalueofshell筒體許用應力Sv138MPaAllowancestressvalueofnozzle接管許用應力Sn138MPaCorrosionAllowance腐蝕余量C1.0mmInnerradiusoftheshell殼體內半徑R501mmJointefficiency焊接系數(shù)E1.0outerradiusofthenozzle接管外半徑Ro60.3/2=30.15mmCalc.thick.計算厚度ta=1.2×30.15/(138×1+0.4×1.2)+1.0=1Appendix附錄11-1(a)(1)Min.thicknessofnozzleneck接管頸部最小厚度tb1=1.2×501/(138×1-0.6×1.2)+1.0=5.379UG-27(c)(1)5.379mm>(1.5+1.0mm=tb1=5.379mmtb2isforexternalpressurevessel.Itisnotneedhere.tb3=3.42+1.0=4.42mmTabletb=min(tb3,max(tb1,tb2)=4.42Min.thickofnozzleneck接管頸部最小厚度ta=1.261mmtbtUG-45=max(ta,tb)=4.42mmRequiredthicknessof要求的厚度tUG-454.42mmNominalthick接管名義厚度tn=5.545.54×0.875=4.848mm＞4.423.3.2NozzleneckthicknessfornozzleN5接管N5的厚度：AccordingtoASMEB36.10M,thenozzleparameterasfollow:根據(jù)ASMEB36.10M標準，接管參數(shù)如下：Outerdiameter外徑:33.4mmWallthickness壁厚:6.35mmRelatedsymbolanddata相關符號及數(shù)值DESCRIPTION描述Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度50℃Materialofshell筒體材料SA-516MGr.485Materialofnozzleneck接管材料SA-Allowancestressvalueofshell筒體許用應力Sv138MPaAllowancestressvalueofnozzle接管許用應力Sn138MPaCorrosionAllowance腐蝕余量C1.0mmInnerradiusoftheshell殼體內半徑R501mmJointefficiency焊接系數(shù)E1.0outerradiusofthenozzle接管外半徑Ro33.4/2=16.7mmCalc.thick.計算厚度ta=1.2×16.7/(138×1+0.4×1.2)+1.0=1.145Appendix附錄11-1(a)(1)Min.thicknessofnozzleneck接管頸部最小厚度tb1=1.2×501/(138×1-0.6×1.2)+1.0=5.379UG-27(c)(1)5.379mm>(1.5+1.0mm=tb1=5.379mmtb2isforexternalpressurevessel.Itisnotneedhere.tb3=2.96+1.0=3.96mmtb=min(tb3,max(tb1,tb2)=3.96Min.thickofnozzleneck接管頸部最小厚度ta=1.145mmtbtUG-45=max(ta,tb)=3.96Requiredthicknessof要求的厚度tUG-453.96mmNominalthick接管名義厚度tn=6.356.35×0.875=5.556mm＞3.963.3.3NozzleneckthicknessfornozzleN2andN4接管N2和N4的厚度：AccordingtoASMEB36.10M,thenozzleparameterasfollow:根據(jù)ASMEB36.10M標準，接管參數(shù)如下：Outerdiameter外徑:33.4mmWallthickness壁厚:6.35mmRelatedsymbolanddata相關符號及數(shù)值DESCRIPTION描述Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度50℃Materialofshell筒體材料SA-516MGr.485Materialofnozzleneck接管材料SA-Allowancestressvalueofshell筒體許用應力Sv138MPaAllowancestressvalueofnozzle接管許用應力Sn138MPaCorrosionAllowance腐蝕余量C1.0mmInnerdiameteroftheheadskirt封頭直邊段內直徑D1002mmJointefficiency焊接系數(shù)E1.0outerradiusofthenozzle接管外半徑Ro33.4/2=16.7mmCalc.thick.計算厚度ta=1.2×16.7/(138×1+0.4×1.2)+1.0=1.Appendix附錄11-1(a)(1)Min.thicknessofnozzleneck接管頸部最小厚度tb1=1.2×1002/(2×138×1-0.2×1.2)+1.0=5.36UG-32(d)(1)5.36mm>(1.5+1.0mm=tb1=5.36mmtb2isforexternalpressurevessel.Itisnotneedhere.tb3=2.96+1.0=3.96mmtb=min(tb3,max(tb1,tb2)=3.96Min.thickofnozzleneck接管頸部最小厚度ta=1.145mmtbtUG-45=max(ta,tb)=3.96Requiredthicknessof要求的厚度tUG-453.96mmNominalthick接管名義厚度tn=6.356.35×0.875=5.556mm＞3.963.3.4NozzleneckthicknessfornozzleM(manhole)接管M(人孔)的厚度：Relatedsymbolanddata相關符號及數(shù)值DESCRIPTION描述Symbol符號Value數(shù)據(jù)Unit單位Calc.results計算結果Designinternalpressure設計內壓P1.2MPaDesigntemperature設計溫度50℃Materialofshell筒體材料SA-516MGr.485Materialofnozzleneck接管材料SA-516MGr.485Allowancestressvalueofshell筒體許用應力Sv138MPaAllowancestressvalueofnozzle接管許用應力Sn138MPaCorrosionAllowance腐蝕余量C1.0mmInnerradiusoftheshell殼體內半徑R501mmJointefficiency焊接系數(shù)E0.85outerradiusofthenozzle接管外半徑Ro457/2=228.5mmCalc.thick.計算厚度ta=1.2×228.5/(138×0.85+0.4×1.2)+1.0=3.328Appendix附錄11-1(a)(1)Min.thicknessofnozzleneck接管頸部最小厚度1.5+1.0mm=2.5mmMin.thickofnozzleneck接管頸部最小厚度ta=3.328mmRequiredthicknessof要求的厚度tUG-453.328mmNominalthick接管名義厚度tn=8mm(undertoleranceconsidered)8mm＞3.328mm3.4Calculationofopeningreinforcement開孔補強計算Therequiredminimumthicknessoftheshellis5.157mm,andtherequiredminimumthicknessoftheheadis5.131mm,therequiredthicknessoftheshellandtheheadislessthan10mm,andthesizeofopening(N1~N5)islessthan89mm,accordingtoUG-36(c)(3)(a),theopeningsexceptopenings殼體要求的最小厚度是5.157mm，封頭要求的最小厚度是5.131mm，筒體和封頭的最小需要厚度小于10mm并且開孔尺寸(N1~N5)小于89mm，按照UG-36(c)(3)(a)，除了檢查孔ReinforcementcalculationsforinspectionopeningnozzleMasfollowing:人孔補強計算如下:DESCRIPTION描述DATA數(shù)據(jù)Designinternalpressure設計內壓P=1.2MPaDesigntemperature設計溫度50Materialofshell筒體材料 SA-516MGr.485Materialofnozzleneck接管材料 SA-516MMaterialofreinforcingring補強圈材料SA-516MAllowancestressvalueofshell筒體許用應力Sv=138MPaAllowancestressvalueofnozzleneck接管許用應力Sn=138MPaAllowancestressvalueofreinforcingring補強圈許用應力Sp=138MPaThicknessofshell筒體有效壁厚:t=8.0-1.0=7.0t=7.Thicknessofnozzle接管有效壁厚:tn=8.0-1.0=7.0mmtn=7.0Thicknessofreinforcingring補強圈有效壁厚:te=8.0te=8.0Theoutsidediameterofreinforcingring補強圈的外徑Dp=760mmCalculatedradiusofnozzle接管計算半徑:Rn=(457-2×8.0)/2+1=221.5mmRn=221.5Requiredthicknessofaseamlessnozzlewall無縫接管壁需要厚度:trn=1.2×228.5/(138×1+0.4×1.2)=1.98trn=1.98Jointefficiencyoftheshellcourseunderconsideration所考慮的殼體焊接系數(shù) E1=1.0Calculatedthicknessofshell殼體計算厚度：tr=1.2×501/(138×1-0.6×1.2)=4.379tr=4.379Openingdiameter開孔直徑:d=2Rn=2×221.5=443mmd=443Outsidediameterofnozzle接管外徑 Dno=457Heightofoutwardextensionfornozzle接管外伸高度ho=120mmHeightofinwardextensionfornozzle接管內伸高度 hi=0mmCorrectionfactor校正系數(shù) F=1mmLegofoutwardweld外焊角高度 7Legofinwardweld內焊角高度 9a)Judgment:accordingtoUG-36(b)(1)d<(D/2=501mm),andd<500mm,reinforcementcalculationbyusingUG-36toUG-43.判斷：依據(jù)UG-36(b)(1)d<(D/2=501mm)，并且d<500mm，補強計算可以使用UG-36到UG-43。b)Limitsofreinforcement:補強范圍Paralleltothevesselwall:max(d,Rn+tn+t)=max(443,221.5+7+7)=443mmUG-40(b)平行容器壁方向：Normaltothevesselwall:min(2.5t,2.5tn+te)=min(2.5×7,2.5×7×7)=17.5mmUG-40(c)垂直于容器壁方向：Outsidediameterofreinforcingring(補強圈的外徑)+2×Legofoutwardweld(外部焊角高度)=760+2×7=774mm<443×2=886mmHeightofoutwardextensionfornozzle接管外伸高度ho=120mm>17.5mmc)Calculationforfilletweldingsizeofnozzle接管角焊縫尺寸計算1)Inwardweld內焊角t=8mmtn=8mmtmin=min(19mm,min(t,tn))=min(19mm,min(8,8))=8mmtc=min(6mm,0.7tmin)=min(6mm,0.7×8)=5.6mmsetC=9mmactualSoC=9mm2)Outwardweld外焊角t=8mmtn=8mmtmin=min(19mm,min(t,tn))=min(19mm,min(8,8))=8mmtc=1/2tmin=1/2×8=4mmsetC1=7mmactualSoC1=7mmd)Reinforcementarearequired:需要的補強面積1)Strengthreductionfactor:強度削弱系數(shù)UG-37(a)fr1=Sn/Sv=138/138=1fr2=Sn/Sv=138/138=1fr3=min(Sn,Sp)/Sv=138/138=1fr4=Sp/Sv=138/138=12)Reinforcementcalculation補強計算:UG-37(a)Fig.UG-37.1Arearequired所需面積A=dtrF+2tntrF(1－fr1)=443×4.379×1+2×7.0×4.379×1×(1－1)=1939.9mm2A1=Areaavailableinshell;uselargervalue殼體有效補強面積，采用較大值d(E1t-Ftr)-2tn(E1t-Ftr)(1-fr1)A1=Max.of2(t+tn)(E1t-Ftr)-2tn(E1t-Ftr)(1-fr1)443(1×7.0-1×4.379)-2×7.0(1×7.0-1×4.379)(1-1)=1161=Max.of2(7.0+7.0)(1×7.0-1×4.379)-2×7.0(1×7.0-1×4.379)(1-1)=73.39=1161mmA2=Areaavailableinnozzleprojectingoutward;usesmallervalue外伸接管的有效補強面積，采用較小值5(tn-trn)fr2tA2=Min.of5(tn-trn)fr2tn5×(7.0-1.98)×1×7.0=175.7=Min.of5×(7.0-1.98)×1×7.0=175.7=175.7mmA3=Areaavailableininwardnozzle;usesmallestvalue內伸接管的有效補強面積，采用最小值A3=0A41=AreaavailableinoutwardweldA41=(leg)2×fr2=9×9×1=81mmA1+A2+A3+A41=1161+175.7+0+81=1417.7mm2＜A=Openingisnotadequatelyreinforcedsoreinforcingelementsmustbeincreased開孔補強不足，需要增加補強件。A2=Areaavailableinnozzleprojectingoutward;usesmallervalue外伸接管的有效補強面積，采用較小值5(tn-trn)fr2t=5×(7.0-1.98)×1×7.0=175.7A2=Min.of2(tn-trn)(2.5tn+te)fr2=2×(7.0-1.98)×(2.5×7.0+8)×1=256.02=175.7mmA41=AreaavailableinoutwardweldA41=(leg)2×fr3=9×9×1=81mmA42=AreaavailableinouterweldA42=(leg)2×fr4=7×7×1=49mmA5=Areaavailableinelement外加元件的有效補強面積A5=(Dp–d–2tn)tefr4=(760-443-2×7.0)×8×1=2424mm2A1+A2+A3+A41+A42+A5=1161+175.7+0+81+49+2424=3890.7mm2Conclusion：AreaavailableforreinforcementisgreaterthantherequiredareasothereinforcingelementisneedforM.3.5Calculationforfilletweldingsizeofnozzle接管角焊縫尺寸計算TheweldingtypeofallnozzleaccordingtoFig.UW-16.1(c),theminimumdimensionoftcshallbecheckedaccordingtoUW-16(b)接管的焊接類型依照Fig.UW-16.1(c),最小焊角尺寸tc依照UW-16(b)進行校核RelatedSymbolsAndData相關標記和數(shù)據(jù)UW-16(b)t=nominalthicknessofvesselshellorhead容器殼體或封頭的公稱厚度tn=nominalthicknessofnozzlewall公稱管的壁厚tmin=thesmallerof3/4in.(19mm)orthethicknessofthethinnerofthepartjoinedbyafillet,single-bevel,orsingle-Jweld3/4in.(19mm)或角焊縫,單邊V型縫或單邊J型縫連接的較薄件的厚度兩者取小tc=notlessthanthesmallerof1/4in.(6mm)or0.7tmin不小于1/4in.(6mm)或0.7tmin中較小者a)CheckoftheminimumdimensionoftcforN1&N3nozzlet=8mmtn=5.54mmtmin=min(19mm,min(t,tn))=min(19mm,min(8,5.54))=5.54mmtc=min(6mm,0.7tmin)=min(6mm,0.7×5.54)=3.88mmsetC=7mmactualSoC=7mmb)CheckoftheminimumdimensionoftcforN5nozzlet=8mmtn=6.35mmtmin=min(19mm,min(t,tn))=min(19mm,min(8,6.35))=6.35mmtc=min(6mm,0.7tmin)=min(6mm,0.7×6.35)=4.45mmsetC=7mmactualSoC=7mmc)CheckoftheminimumdimensionoftcforN2&N4nozzlet=8mmtn=6.35mmtmin=min(19mm,min(t,tn))=min(19mm,min(8,6.35))=6.35mmtc=min(6mm,0.7tmin)=min(6mm,0.7×6.35)=4.45mmsetC=7mmactualSoC=7mm3.6Strengthofreinforcementattachmentwelds補強件連接焊縫的強度a)TheattachmentweldsofnozzleN1.N2,N3,N4,N5toshellandheadscomplywithFig.UW-16.1(c).AccordingtoUW-15(b)(1),thestrengthcalculationsforthesenozzlearenotrequired.接管N1,N2,N3,N4,N5與筒體和封頭的連接焊縫依據(jù)圖UW16.1(c)，根據(jù)UW-15(b)(1)不要求進行強度計算。b)Checkingofweldingjointstrength:焊接接頭強度校核(人孔)InaccordancewithUG-41andFigUG-41.1andallowablestressvalues(UW-15(c),UG-45):根據(jù)UG-41和圖UG-41.1和許用應力(UW-15（c）,UG-45)Calculationofmanholering人孔頸部計算(1)Allowablestressvalues[UW-15(c)],各類許用應力值(UW-15(c))(a)Outfillet-weldshear外填角焊縫剪切應力=0.49×138=67.62MPa(b)Interfillet-weldshear

內填角焊縫剪切應力=0.49×138=67.62MPa(c)Nozzlewallshear

接管壁剪切應力=0.7×138=96.6MPa(d)Elementgrooveweldtension

補強板坡口焊縫拉伸應力=0.74×138=102.12MPa(e)Nozzlegrooveweldtension

接管坡口焊縫拉伸應力=0.74×138=102.12MPa(2)StrengthofConnectionElements連接元件的強度(a)Interfillet-weldshear內填角焊縫剪切強度=（π/2）×nozzleO.D.(接管外徑)×weldleg(焊角高)×67.62=（π/2）×457×9×67.62=436871.53N(b)Outfillet-weldshear外填角焊縫剪切應力=（π/2）×reinforcingelementO.D.(補強圈外徑)×weldleg(焊角高)×67.62=（π/2）×760×7×67.62=565075.75N(c)Nozzlewallshear接管壁剪切強度=（π/2）×meannozzleO.D.(接管平均直徑)×tn×96.6=（π/2）×450×7×96.6=477977.61N(d)Elementgrooveweldtension補強板坡口焊縫拉伸應力=（π/2）×nozzleO.D.(接管外徑)×te×102.12=（π/2）×457×8×102.12=586457.93N(e)Nozzlegrooveweldtension接管坡口焊縫拉伸應力=（π/2）×nozzleO.D.(接管外徑)×t×102.12=（π/2）×457×7×102.12=513150.69N(3)CheckStrengthPaths校核各途徑的強度InaccordancewithUG-41(b)andFigUG-41.1(a)依照UG-41（b）和圖UG-41.1（a）W=[A-A1+2tnfr1(E1t-Ftr)]×Sv=[1939.9-1161+2×7×1×(1×7-1×4.379)]×138=112552NW1-1=[A2+A5+A41+A42]×Sv=(175.7+2424+81+49)×138=376698.6NW2-2=[A2+A3+A41+A43+2tntfr1]×Sv=(175.7+0+81+0+2×7×7×1)×138=48948.6NW3-3=[A2+A3+A5+A41+A42+A43+2tntfr1]×Sv=(175.7+0+2424+81+49+0+2×7×7×1)×138=390222.6NPath:1-1途徑1-1565075.75+477977.61=1043053.36N＞W(wǎng)1-1Path:2-2途徑2-2436871.53+586457.93+513150.69=1536480.15N＞W(wǎng)2-2Path:3-3途徑3-3565075.75+513150.69=1078226.44N＞W(wǎng)3-3Allpathsarestrongerthanthestrengthof112552NrequiredbyUG-41(b)(2)所有途徑的強度大于所需要的強度112552N，見UG-41(b)(2)。3.7Calculationforthestrengthoffilletweldingbetweenflangeandnozzle法蘭和接管處角焊縫的強度計算ForN1andN3accordingtoUW-21(b)對于N1和N3口根據(jù)UW-21(b)規(guī)定do=60.3mmtheoutdiameterofnozzle管外徑tn=5.54mmthethicknessofnozzle管壁厚t=min(tn,6)=min(5.54,6)=5.54mmfigUW-21Xmin=min(1.4tn,(78-61.9)/2)=min(1.4×5.54,8.05)=7.756mmActualXmin=8mm實際Xmin=8mmIt’sOK.ForN2,N4andN5accordingtoUW-21(b)對于N2,N4和N5口根據(jù)UW-21(b)規(guī)定do=33.4mmtheoutdiameterofnozzle管外徑t=6.35mmthethicknessofnozzle管壁厚t=min(tn,6)=min(6.35,6)=6mmfigUW-21Xmin=min(1.4tn,(49-34.5)/2)=min(1.4×6.35,7.25)=7.25mmActualXmin=7.5mm實際Xmin=It’sOK.ForMaccordingtoUW-21(b)對于M口根據(jù)UW-21(b)規(guī)定do=457mmtheoutdiameterofnozzle管外徑t=8mmthethicknessofnozzle管壁厚t=min(tn,6)=min(8,6)=6mmfigUW-21Xmin=min(1.4tn,(505-461.8)/2)=min(1.4×8=11.2,21.6)=11.2ActualXmin=12mm實際Xmin=It’sOK.3.8Calculationforfilletweldingsizeoflug吊耳角焊縫尺寸計算吊耳簡圖StandardbasisHG/T21574-2008”Chemicalequipmentliftinglugsandengineeringtechnicalspecification”MaterialofLug吊耳材料SA-516MGr.485DesignTemperature設計溫度50LugsPlateAllowableTensileStress吊耳板許用拉應力［σL］138MPaLugsPlateAllowableYieldStress吊耳板許用屈服應力［σs］：255.6/1.6=159.75MPaLugsPlateAllowableShearStress吊耳板許用剪應力［τL］：［τL］=0.4×［σs］=0.4×159.75=63.9MPaLugsPlateAllowableBendStress吊耳板許用彎曲應力［σab］：［σab］=0.66×［σs］=0.66×159.75=105.43MPaLugsPlateCombinedAllowableStress吊耳板組合許用應力［σz］：［σz］=0.9×［σs］=0.9×159.75=143.77MPaHeadMaterial封頭材質：HeadAllowableTensileStress封頭材質許用拉應力［σH］：138MPaHeadAllowableYieldStress封頭材質許用屈服應力［σs］：159.75MPaFilletWeldCoefficient角焊縫系數(shù)：:Φa=0.7Movable-LoadCombinedCoefficient動載綜合系數(shù)K=1.8EquipmentEmptyWeight設備重量（空重）G=79LiftingDesignLoad起吊設計載荷Z=K×G=1.8×798=1LugsQuantity吊耳數(shù)量n=2SingleLugDesignLoad單個吊耳設計載荷LS=Z/n=1436.4/2=71AccelerationofGravity重力加速度g=9.8mS-2DistanceOfLiftingLugsHoleCentreLineToHeadsurface吊耳孔中心線至封頭表面的垂直距離L=46mmEnd'sRoundArcofLiftingLugsPlate吊耳板端部的圓弧R=40CentreHoleDia.ofLiftingLugsPlate吊耳板中心孔直徑D=30LengthofbottomofLugPlate吊耳板根部弧長E=118ThicknessofLiftingLugsPlate吊耳板厚度S=8Calculatedvalues各數(shù)據(jù)計算值VerticalLoad豎向載荷Fv=Ls×g=718.2×9.8=7038.36NTransverseLoad橫向載荷FH=Fv×tan30°=7038.36×0.57735=4063.6NSuspendLoad吊繩方向載荷FL=Fv/cos30°=7038.36/0.866=8127.43NRadialdirectionmoment徑向彎矩M=FH×L=4063.6×46=186927N.mmMaximumtensilestressofsuspendropeonLugsPlate吊耳板吊索方向的最大拉應力:σL=FL/[(2R-D)S]=8127.43/[(2×40-30)×8]=20.3MPa<［σL］=138MPa，OK通過MaximumtensilestressofsuspendropeonLugsPlate（BiasedConservative）吊耳板吊索方向的最大剪應力（偏于保守）τL=σL=20.3MPa<［τL］=63.9MPa，OK通過Overallareaofwelding焊縫總面積A=8×0.7×2×(46×tan15°+40+8)=675.65mmTensilestressofLugwelding吊耳焊縫拉應力σa=Fv/A=7038.36/675.65=10.4MPaensilestressofLuganglewelding角焊縫剪應力τa=FH/A=4063.6/675.65=6MPaBendstressofLuganglewelding角焊縫的彎曲應力σab=6M/{S[2×(L×tan15°+R)]2}=6×186927/{8×[2×(46×tan15°+40)]2}=12.8MPaCombinationstressofLuganglewelding吊耳角組合應力σz=[(σa+σab)2+4τa2]1/2=[(10.4+12.8)2+4×62]1/2=26.1MPaσz<［σz］=143.77MPaOK通過3.9CalculationforfilletweldingstrengthoftheattachmentofManhole人孔附件角焊縫計算人孔蓋軸耳焊接簡圖WeldcornerstrengthcalculationisselectedperChinesestandardsYZB250-89角焊縫強度計算按中國標準YZB250-89Parameters:參數(shù)Material材料SA-516MGr.485&SAAllowableTensileStress許用拉伸應力[σ]=138MPaAllowableShearStress許用剪應力[τ]=0.49×138=67.62MPaTensilestrengthofthefillet-weld(FlangeCoverAxisPlate)法蘭蓋軸耳角焊縫拉伸強度校核FlangeCoverweight法蘭蓋質量m=98.52a)Atthesupportplate在支撐板處Areaofwelding焊縫面積A1=2×8×0.7×180=20ShearStress剪應力τ=mg/A1=98.52×9.8/2016=0.479MPa<[τ]Lengthbetweenthecenteroftheboomandtheweldingneck法蘭蓋中心到焊縫距離l=372.5mmTensilestress拉應力σ=6M/(hl2)=6×(98.52×9.8×372.5)/(8×1802)=8.33MPa<[σσ<[σ]τ<[τ]Soit’sOK因此通過校核b)Attheflyingring在吊環(huán)處Areaofwelding焊縫面積A2=8×0.7×(25×4+16×2)=739.2mmTensilestress拉應力σ=mg/A2=98.52×9.8/739.2=1.31MPa<[σ]σ<[σ]Soit’sOK因此通過校核c)Atthehandle在把手處Areaofwelding焊縫面積A3=8×0.7×3.14×20=351.68mm2Tensilestress拉應力σ=mg/(4×A3)=98.52×9.8/(4×351.68)=0.686MPa<[σ]σ<[σ]Soit’sOK因此通過校核4.SelectionofStandardParts標準零部件的選擇Flange:selectedinaccordancewithASMEB16.5(2009Edition)150＃(Pressureratingcanbeatleast1.92MPaatdesigntemperature50℃法蘭:依照ASMEB16.5(2009版)150＃進行選擇（設計溫度為50℃Support:SelectedinaccordancewithChinesestandardJB/T4712.2-2007.支座：按照中國的標準JB/T4712.2-2007進行選擇5.Hydrostatictestpressure(inaccordancewithUG-22(j)andUG-99(b))液壓試驗壓力(依照UG-22（j）及UG-99(b))St=allowablestressattesttemperatureofvessel試驗溫度下的許用應力Sd=allowablestressatdesigntemperatureofvessel設計溫度下的許用應力Pt=1.3×MAWP×LSRPt=1.3×最大允許工作壓力×最低應力系數(shù)Pt1=Pt+STATICHEADPt1=Pt+靜壓頭Note:LSR=allowablestressattesttemperatureofvessel/allowablestressatdesigntemperatureofvessel注:LSR=最低應力系數(shù)等于容器試驗溫度下的許用應力/容器設計溫度下的許用應力Partname部件名稱Material材料St(MPa)7℃～Sd(MPa)LSRShell&head筒體及封頭SA-516MGr.485138138138/138=1Flange法蘭SA-105M138138138/138=1Nozzle管SA-105M138138138/138=1Note:theyieldstrengthofmaterial各材料的屈服強度(a)SA-516MGr.485when48℃當48℃MakeSm=256.88MPa設置Sm=256.88MPa(b)SA-105MFlange法蘭when48℃當48℃MakeSm=243.2MPa設置Sm=243.2MPa(c)SA-105MNozzle接管when48℃當48℃MakeSm=243.2MPa設置Sm=243.2MPaTheheightofliquidlevelis2.05m.液位高度為Coincidentstaticheadactingduringthetest靜壓頭試驗時的壓力:Psh=（1000kg/m3）×9.8（kgm/s2）×2.05(m)≈0.02MPaTeststaticpressure0.02MPa,試驗靜壓力0.02MPaHydrostatictestpressure水壓試驗壓力:LSR=1Pt=1.3×1.2×LSR=1.3×1.2×1=1.56MPaPt1=Pt+Psh=1.56+0.02=1.58MPa5.1 Thestressofshellshallandbottomellipsoidalheadandtopellipsoidalheadarecheckedinaccordancewiththeformulapriortostaticpressuretest:用公式校核筒體、下橢圓封頭和上橢圓封頭的應力Ts=8mmtheeffectivethicknessofshell筒體的有效壁厚Th=7.2mmafterformingtheminimumthicknessofhead封頭成型后的壁厚R=500mmtheinsideradiusD=1000mmtheinsidediameter5.1.1Shell筒體S=Pt1(R+0.6Ts)/(ETs)=1.58×(500+0.6×8)/(0.85×8)=117.29MPa<0.9Sm=0.9×256.88=231.19MPaSoit’sOK因此通過校核5.1.2Bottomellipsoidalhead下橢圓封頭S=Pt1(D+0.2Th)/(2ETh)=1.58×(1000+0.2×7.2)/(2×0.85×7.2)=129.27MPa<0.9Sm=0.9×256.88=231.19MPaSoit’sOK因此通過校核5.1.3Topellipsoidalhead上橢圓封頭S=Pt(D+0.2Th)/(2ETh)=1.56×(1000+0.2×7.2)/(2×0.85×7.2)=127.63MPa<0.9Sm=0.9×256.88=231.19MPaSoit’sOK因此通過校核5.2 ThestressofnozzleN1,N3checkedinaccordancewiththeformulapriortostaticpressuretest:用公式校核接管N1,N3的應力5.2.1NozzleN1andN3接管N1,N3Ro=60.3/2=30.15mmT=5.54mmS=Pt1(Ro-0.4T)/(ET)=1.58×(30.15-0.4×5.54)/(1×5.54)=7.97MPa<0.9Sm=0.9×243.2=218.88MPaSoit’sOK因此通過校核5.2.2NozzleN2,N4接管N2,N4,N5Ro=33.4/2=16.7mmT=6.35mmS=Pt1(Ro-0.4T)/(ET)=1.58×(16.7-0.4×6.35)/(1×6.35)=3.52MPa<0.9Sm=0.9×243.2=218.88MPaSoit’sOK因此通過校核5.2.3ManholeshellM人孔筒節(jié)MRo=457/2=228.5mmT=8mmS=Pt1(Ro-0.4T)/(ET)=1.58×(228.5-0.4×8)/(0.85×8)=52.35MPa<0.9Sm=0.9×243.2=218.88MPaSoit’sOK因此通過校核5.3ThePressure-TemperatureRatingsofflangeischeckedthatisgreaterthanhydrostatictestpressure.校核法蘭材料壓力-溫度額定值大于水壓試驗壓力。AccordingtoASMEB16.5Table2-1.1Pressure-TemperatureRatingsof7℃or48℃forGroup1.1Materials,Pressure-TemperatureRatingsis1.927MPa(48℃)根據(jù)ASMEB16.5表2-1.1中1.1組材料壓力-溫度額定值，48℃時的工作壓力是1.927MPa＞1.58Soit’sOK因此通過校核Note：SA-193MGr.B7when48℃,Sy=715.68當48℃時,Sy=715.68MakeSm=715.68MPa設置Sm=715.68MPaBoltingshallnotbeincludedinthedeterminationoftheLSR,dueto注：螺栓不參與LSR的確定,由于1.3×LSR×Sd(SA-193MB7)=1.3×1×172=223.6MPa90%Sy(SA-193MB7)=0.9×715.68=644.11MPaWhere:Syistheminimumyieldstrengthatthetesttemperature式中：Sy是試驗溫度下的最小屈服強度1.3×LSR×Sd(SA-193MB7)＜90%Sy(SA-193MB7)Soit’sOK因此通過校核6.JudgmentforImpactTestingExemptions判斷是否需要沖擊試驗Judgmentwhethertheimpacttestisrequiredwhenmaterialsofvesselelementsa