弹性密封闸阀橡胶密封条件分析

:100225855(2007)0220031206:(1947-),,,(,315020),;:TH136:AAnalysisofrubbersealingconditionsofresilientseatedgatevalveNIPing(NingboAMICOCopperValvesMfgInc,Ningbo315020,China)Abstract:Thepaperanalysisofrubbersealingconditionsandclosemomentofresilientseatedgatevalve.Keywords:resilientseatedgatevalve;rubbersealing1116MPa,80,70A,,,,,,,,,,2,,Z1215X40Y(1),,,,Y,40,,(1),,1DN1501320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=4+6PN10bmbm,mmPN=116MPa,qMFqMF=413bm(1),=LL(2)qq=QS(3)L,mmL,mmS,mm2Q,Nq[q],,q=E(4)E,MPa70AE=7184MPa(4),=q7184(5)(1)(5),0155bm(6)qMF,q116MPa,E=7184MPa,0155q=5MPa2,6318%8%30%,,40%3(1)(6),,(6),40%4,,(1)bm1=1215mm,L=12mm,(6),1516%,(2)L119mm40%418mm,119418mm,216(2)2=25,2a,ABCDh,L22320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=hsin(7)L=6mm,bm2=9mm(112mm,715mm)(6),1813%(2),L111mm(7)h511mm,,,011116MPa,0101%10%,2813%9mm,1813%2813%,,,,Y(),Y0155mm,111mm,,,Y3715%(116MPa),716mm(3)1K40,bm3=48mmL=8mm,719%,L0164mm,h110mm(4)1K40,bm4=813mm(115mm,713mm),L=8mm,19%,L115mm,h2136mm5,,,214mm,,1913%20%h716mm,214mm512mm,512mm,,015mm214mm,214mm,(H-214)mm,(L-313)mm,111mm,212mm6,,OO,,QFZ=Q+QG+QT(8)QFZ,NQ,NQGO,NQT,N611QTQT=dFhTTP(9)dF(dF=28),mmhT,mmT(T=014)P(P=PN=116),MPaOOd0=6mm,O=20%4,Obb=(42+0134+0131)d0(10)b=312mm,hT=3b=916mm,3320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(9),QT=28916014116=540N612OO,28mm,d0=3155mm,d=3415mm=(d0-h)/d0(11)hO,mmh=(d-dF2)(12)=01084,(9)(10),QG=7312N613QQ=Q1+Q2+Q3+Q4(13)Q,NQ1,NQ2,NQ3,NQ4,N(1)Q1,Q1Q1=QMFcos(tg+tg)(14)QMF,NQMF=SqMFS(1,S=3130),mm2qMF(qMF=2194),MPa(=01065,arctg=3134),()(=1215),()(14),Q1=253016N(2)Q2Q31644mm2115MPa,930mm2115MPa(3)QMF(14)40Q=0168875QMFQ2=169815N,Q3=96018N(3)Q41944mm21157MPa,(3)Q4=3052N(4)QQ1Q2Q3Q4(13),Q=824119N614QFZ(8),QFZ=824119+7312+540=8855N7MM=MFL+MFJ(15)MFL,NmMFL=QFZRFM(16)RFM(RFM=2174),mmMFJ,NmMFJ=0.5QFZfjdp(17)fj(fj=011)dp(dp=5815),mm(15),M=5012Nm11100150200250300Nm28175012701599111N230335403495493Nm305075901058,MM=MFL+2MFT+MTJ+MG(18)MFL,NmMFL=QRFMMFT,NmMTJ,NmMGO,Nm4320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(18),M=5417Nm,M=4217Nm9,,,,(1)3mm6mm,215mm,,6mm,,(2),(H-214)mm,(L-110)mm,,,,7%,4617Nm,,40%61%,81Nm(3)215MPa,45%,56%58%,116mm,,3515%2615%2715%(4)62A,,E=510MPa6116MPa(5)(6)=q/50186/bm,(2)260A/%L/mmh/mm24132192192817117810121401991152817213316,39%,62A,47%,62A(5)216,94mm,bm3=50mmPN=116MPa,E=7184MPa,338/%L/mmh/mm15161191191813111719718016019719115214,37%,2=25(6),,h=/tg1215,,,3715%,,,(4)4%/mm+112-112+110-110421520381820411937141941193714193715471537154514,110mm,61%,,,(7)mm,mm,40sin40mmsin1215mm,110mm,3715%316%,30%5320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(8)+210mm,1mm,5216%116%,117,23785N,,58%56%45%,3,5,(DN100DN125,)5mm801001502002502026283236182315251529334181120192519291332183151718112214251428145dF(19)dF=1.251.354QFZ[](mm)(19)[]([]=12215),MPaQFZ,NQFZ=M/(RFM+0105dp)10(1)8%40%,6570A(2),,(3)110mm,,(4),,1.M.:,2004.2.M.:,1992.3.M.:,1999.4.M.:,1985.5.J.,2003(6).6.J.,1994(1).7.J.,2001(6).(:2006111106)(CAD)(E2mail)100,()50,,::0577-86877197:0577-28873761E2mail:[e-mail]::95588012031148647466320072©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.