压力容器斜大开孔的有限元分析

3411200611EastChinaElectricPowerVol.34No.11Nov.20061,2(1.,210036;2.,212001):,,,:;;:(19712),,,,:TH49:B:100129529(2006)1120083203FiniteelementanalysisforpressurevesselswithobliquelargeopeningDENGGuang2fa1,MOJian2yi2(1.JiangsuElectricPowerTest&ResearchInstitute,Nanjing210036,China;2.JianbiPowerPlant,Zhenjiang212001,China)Abstract:Sincethetraditionalmethodandcommondesignsoftwarecannotcalculatethepressurevesselmodelwithobliquelargeopening,thefiniteelementanalysiswasadoptedtoconductstressanalysisandcarryoutstressclassifi2cationandcheckingforthecalculationresults.Structuredesigncanbeoptimizedbasedonthatconsequently.Keywords:pressurevessel;obliquelargeopening;finiteelementanalysis,,,,,:ASMEGB15021998,,,,;,,ASMEJB473221995,,,,,,,1,,,,Pm,PL,Pb,PL,Pm,PLPmQ,,,Q,,,,Q84(1066)2006,34(11)F,,ASME[2,3]::PL1.5KSmh:PL+Pb+Q3KSmavg:PL+Pb+Q+FSaK,1.0;Smh,Smavg;Sa12:2.5MPa,20,20,426mm12mm,300mm8mm,22,,,FE/PIPE20E=1.98105MPa,=0.3,20,134MPa,,1FE/PIPE,,11/MPa/MPa/%2072011032194025523520111732040280592012969402177420137103402267820139105402261,,,312mm,,,22/MPa/MPa/%167201831814024518020190217402543920119474021271201359740224522012679402202,,,90%,,33,,,33%3411200611EastChinaElectricPowerVol.34No.11Nov.2006110MW(,100040):12,,,:;;;;:(19732),,,:TK263.2:B:100129529(2006)1120085203Applicationofcellularsteamsealstotechnicalretrofitsofflowpassagefor110MWsteamturbinesZHAOJian2min(DatangInternationalBeijingGaojingCogenerationPowerPlant,Beijing100040,China)Abstract:InthetechnicalretrofitoftheflowpassageforNo.1andNo.2unitsinBeijingGaojingCogenerationPowerPlant,thecellularsteamsealwasappliedtothelowpressureflowpassage.Aftertheretrofit,steamleakageandre2ductionofvacuuminthefrontandbacklowpressureshaftsealsaresolved,andthedehumidificationofthebladetipsteamsealisreinforced.Theeconomyandsafetyoftheunitarethusimproved.Keywords:cellularsteamseal;energysavingandenergyconsumptionreduction;shaftseal;vacuum;comb2typelabyrinthseal3/MPa/MPa/%207167192191811723518023320217335939336947327471410397678523310579254,,,,,:2006204205121961419645,200512,,,,;15N110/C8028.83/0.5,,FW,1,,