膜片稳压溢流阀的设计计算

:100225855(2006)0420005204:(1955-),,,,(,710032),;;;:TH134:AThedesignandanalysisofdiaphragmoverflowvalveLIUZhong2ren,FENGYun(XianHeavyMachineryResearchInstitute,Xian710032,China)Abstract:Inthispaper,anewlow2presslarge2fluxover2flowvalveisintroduced.Theforcebalanceformulationandthebasicdesigningrulesofdiaphragmover2flowvalvearedeveloped,basedonwhichthecharacteristicsanalysisofthevalveisprocessed.Keywords:overflowvalve:pressure;volumeofflow;propertycalculate1,,2,,,,,,,,,,,(1)3111213141516113111,PKA=Ky0+PK(A1-A2)+G+Fb520064PK=Ky0+G+FbA-(A1-A2)(1)PK,MPaA,mm2K(K=187991),N/my0,mmG,kgFb,NA2,mm2A1mm21Ps=0163MPaQs=250l/min95%312Fs,PA=K(y0+y)+G+Fb+Fs+P(A1-A2)P=Ky+PK[A-(A1-A2)]A-E-(A1-A2)(2)Fs,NFs=EPEE=CQdmysin2P,MPa313,,:A1=A2,PK0163MPa,(1)A=Ky0+G+FbP(3)A=81310-3m2,,PminPd=Ps(4)Pmin,MPaPd,MPaPs,MPa(3)y0=0,Pmin=G+FbA-E=30+4981310-3-117810-4=010097MPaPd=Ps=01050163=010315MPaPmin=010097MPaPd=010315MPa314,,,,,(2)A3A3=dmysin1-y2dmsin2(5)ydm,A3=dmysin(6)d0,mmy,mm,()A3,mm2dm,mm2,,2=90d0=70mm,d1=75mm3154D2=QsV(7)D=4QsV=4250103/60115=010595m620064DN=65mmD,mmQs(Qs=250),l/minV(V=115),m/s316Qs=CQdmsinys2Ps-P0(8)(=900),kg/m3P0(P0=0),MPaCQ(CQ=01782)(=45),(),ys=QsCQdmsin2Ps=25010-3/6001782721510-3sin4529000163106=916310-4mVmax=QsAs=Qsdmyssin=25010-3/60721510-3818410-4sin45=2913m/s(9)As,m2317(,),,,yc=hQcQc=CQdmsinyc2Pc(10)Qc(Qc=Qs=250),l/minyc,mmPc(Pc,Pc=Ps1%=010063),MPah,mmh=yc=QsCQdmsin2Pc=25010-3/6001782721510-3sin4529006300=818410-3mh=8mm,yc(9)Vc=3119m/s318,100,100,,,3191%PK,QKQK=Qs1%=2500101=215l/minPK=K(y0+yk)+GSA-E(11)S,NPsPKPKPK=Pk-Psyk,PKA=KyK(12)QK=CQdmsinyK2PK(13)yK=QK2FCQdmsin22K(14)yK=1129710-4m,CQ=01782,K=187994N/m,=900kg/m3,G=30kg,S=39N,A=8133210-3m2,Ps=0163MPa,dm=721510-3m,E=21310-5m2,y0=271410-3m,PK720064PK=K(y0+yK)+G+SA-E=016324MPa,,,PbPb=K(y0+yk)+G-SA-E=016206MPanK=PsPK100%=0163016324100%=9916%(15)nb=PbPs100%=0162060163100%=9815%(16)n=nk-nb=111%,34-,01020103MPa,01019MPa,3Qsmax=450l/min,,,1.M.:,1965.2.M.:,1982.3B.H.,,.M.:,1964.(:2006103108)112000,,:()ISBN7-5083-0297-4,80100/21()2005,[]PhilipL1Skousen,:,ISBN7-80164-896-X,55100/312002500,,,ISBN7211121265624,118/10%,3,:110025,:024-25653780820064