离心泵运行调节能耗分析

245200610DrainageandIrrigationMachineryVol.24No.5Oct.20061,2,2(1.,212013;2.,730065):..,,;,,;,,,,,.:;;;:TH311:A:1005-6254(2006)05-0044-04OperationadjustingmethodsforenergyconsumptionofcentrifugalpumpYUANJian2ping1,ZHANGGai2cheng2,CHENXiang2(1.FluidMachineryEngineeringResearchCenter,JiangsuUniverisity,Zhenjiang,Jiangsu212013,China;2.No.504Factory,CNNC,Lanzhou,Gansu730065,China)Abstract:Theprinciplesofadjustmentmethodforcentrifugalpumpsoperation,includingthrottlingad2justment,flowdividingadjustment,adjustmentthroughcouplingpumpsinseriesorinparallel,androta2tingspeedadjustmentareintroduced.Thehydraulicconsumptions,operationefficiency,advantagesanddisadvantages,andappliedconditionsarediscussed.Therearetwoflowrateadjustingmethods:thatflowratecanbecontinuouslychangedthrottlingadjustmentandflowdividingadjustment,andthelatterhaslargerenergyconsumptionandisalwaysappliedtothesiteswhererunningsafetyandreliabilitymustbeconsidered.Theadjustmentmethodthroughcouplingpumpsinseriesorinparallelcantcontinuouslychangeflowratio,buttheadjustmentrangeisverywideandthereisnoadditionalhydrauliclossintheo2ry.Themethodofrotatingspeedadjustmentchangestheflowratiocontinuouslyiftherotatingspeedchangescontinuously.Themethoddontcauseadditionalhydrauliclossexceptthelossinsidepump.Keywords:centrifugalpump;operationadjusting;energyconsumption;energyconservation,.1981200234%,10%;GDP2;30%[1].,35000MW,40%;,20%,59%26%.,300500kWh/,6101000MW[2].,.,:2006-02-20:(BM2002805):(1970-),,,,.(1971-),,,,.,,.1,;[3].(H-Q),,.1.1,,..1,n0H-Q,R0,R1.n0R0,R1A(QA,HA)B(QB,HB);B,R0C(QB,HC).,,QAQB;,.,,R0R1,AB,HAHB.1,.1.2.;,,.2,n0H-Q,R,R,R0.n0R0A(QA,HA);ARRG1(QG1,HA)G2(QG2,HA),QG1QG2.,R,,R1.,n0R1B(QB,HB);BRRG1(QG1,HB)G2(QG2,HB),QG1QG2.,QAQB,An0B;G1RG1,QG1QG1.2,.1.3,[4].3a.R0,n1n2,n0.R0n0n1n2A(QA,HA),B(QB,HB),C(QC,HC);A,n1n2P1(QA,HP1)P2(QA,HP2).Bn1,Cn2,P1P2,n1n2.n1,n1B,,n2,n1BP1,n2P2.3b.R0,n1n2545:,n0.R0n0,n1n2A(QA,HA)B(QB,HB)C(QC,HC);A,n1n2P1(QP1,HA)P2(QP2,HA).Bn1,Cn2,P1P2n1n2.n1,n1B,,n2,n1BP1,n2P2.3,;,;.1.4,,:Q1/Q2=n1/n2H1/H2=(n1/n2)2P1/P2=(n1/n2)31/2=14,R0,n0n1.R0n0n1A(QA,HA)B(QB,HB),.,n0n1,AR0B,QAQB.,.42,.2.11,QAQB,CHC,B,HB.,,H=HB-HC,P=QBH=QB(HB-HC),,.,,.2.22,,QAQB,AB.,,P=QG1HB,P=QG2HB,.,,.,.2.3,,,6424(3)P=QAHA=QA(HP1+HP2)()P=QAHA=(QP1+QP2)HA(),,[4].,,,..2.44,,QAQB,AR0B,,,,P=QBHB,,,,.2.5,j=v,j,,v.(1),,,,,.B(1)jj=HCHB=HB-HHB(2),,,,,.B(2)jj=QG1HB=QG1QG1+QG2(3),,.3a,Aj==HP1+HP2HP1/P1+HP2/P2,3b,Aj==QP1+QP2QP1/P1+QP2/P2(4),,,;,,..,.3,.,.,,,.,,,.,,,,.,,.,,.,.(References)[1].[J].,2004(1):1-4.[2]/.EMC[Z],2004(3).[3].[M].:,1998:85-92.[4],,.[J].,2004,22(2):12-15,20.[5],,,.[J].,2004,22(6):1-4.[6],,.[J].,2000,28(7):40-43.()745: