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《化工设备与管道》(,610041):,,250m3/h,4001600m,,:;;;;:TQ051.2:A:1009-3281(2009)03-0024-06ApplicationofPitotPumpinLowFlowandUltra-highHeadSituationWEIZong-sheng(ChengdaEngineeringCorporationofChina,Chengdu610041,China)Abstract:Inthisarticle,theorigination,developmentprocess,structure,workingmechanismandcharacteristicsofpitotpumpwereintroduced.Withengineeringinstance,theengineering-economyevaluationtableforpitotpump,highvelocitypumpandmulti-stagepumpwaspresented.Ithasbeenshownthatwithinthescopeof250m3/hinflowand4001600minpressurehead,thelowerflowandthehigherhead,themoreevidentthetechnicaladvantageofpitotpumphas.Keywords:lowflow;super-highpressurehead;pitotpump;application;engineering-economyevaluation:2009-01-05;:2009-01-20:(1941),,,1938,,,;,,[1]:Barske,();,,,,,,,,,5GPM(1.1m3/h),,,,,(Pi-totPump),,,,,,,,,,,11960Kobe,,《化工设备与管道》[2-4]EnviroSterlingBEGEMANNPOMPENB.V.Enviro:CWHB(R11)CWHA(RO),EnviroEnviroRD11210022001994,()[5][6-8],2090,320m3/h,280340m,XPB[9],,,2000,,585m,,,2002LG-2/130,,,130m,[10]R,850m,100m3/h,200612(),,2005,,,,,,,,:NMP920m,1581m,22.1,1(),,,,,,,O,,12.2,,,,,,,,,5220096.《化工设备与管道》(2160m3/h1600m),,Enviro11EnviroR11RGRORO-D8502200/(m3h-1)234291214051602110/m45079216006401232/%6062625868/(rmin-1)48584380632143805443/MPa1.41.42.81.41.4/177121288288288/kW55300300450290/(m3h-1)121313.63.54.8133,:(1),,,,,,,,,(2),11:90%:Pv,,,,Pv,(),,,,,,(3),,(4)-,,,,,(5),(6),Enviro,,,,(1416,4)4,22,,,,,,,,,62463《化工设备与管道》(m3h-1)6(1.615)6(28)35(750)35(3040)/m450450500500/(rmin-1)35507000370012000ns5.317.212.943.7/%55156150/(m3h-1)13NPSHr/m1.21.53.53(),(1)1500t/dCO2,27.4m3/h,411m,0.992,316SSSUNDYNE(2007),3(2)NCRBRD,4.1m3/h,460m,145(3),8m3/h,750m,(0.8)63SUNDYNEEnviro2200-32-S484SUNDYNE-NIKKISOLMV311-75-123S2SS/%63.949.614.3%,/kW47.661.35.3/kW5575/(rmin-1)343112300,,,,:,,,,15,14.3117272.1:0.48/(kWh),8000h,(61.3-47.6)80000.48=5.3CIF,10%17%4(Enviro)2200-S266()LMV322-30-142/%43.219.623.6,/kW11.926.25.5*/kW1530/(rmin-1)348014200,,/(m3h-1)0.92.6NPSHr/m1.24.7,,:,,,,15,:(26.2-11.9)80000.48=5.57220096.《化工设备与管道》(Enviro)2200-S266()MC4011/%43.222811.5,/kW11.923.34.4*111111,22,1,,,,,,,,:,,,,15:(23.311.9)80000.48=4.46HXK400-S1EGS-L1-(W2)/%35.8269.8%,/kW36.550.35.3*/(rmin-1)440014300,,,,:,,,,15,:(50.3-36.5)80000.48=5.35,:(1)1%,,,(,,),,1%(2),,,(3),NPSHr,Enviro,NPSHr,;20m3/h,NPSHr1.53m;NPSHr,,NPSHa,,(4)-,,,,(5),(6),,,,,420mA,[11],()25%50%,70kPa,,,,,,,1,,16250m3/h,4001600m,,,(44)82463《化工设备与管道》(190),97,:(1),(2),1.2m(3),(5),(6)(7),(8),(9)(10),(11),[1].[M].:,2006.[2]DL/T50541996,[S].(28),,,,,,,100m3/h,1600m,[1]BarskeUM.DevelopmentofSomeUnconventionalCentrifugalPumps[R].ProceedingoftheInstitutionofMechanicalEngi-neers,1960,174-177.[2]Crichlow,WalterW.(Kobe,Inc.):USP3989881,CentrifugalPumpofthePitotType.[3]EricksonJW.(Kobe,Inc.):USP3994618,Multipleoutletpi-totpumpwithdifferentoutputflowsand/orpressures.[4]EricksonJW.ANewPumpforIndustry-TheRoto-JetPump[R].ProceedingsoftheMechanicalEngineeringConference,1974.[5].[J].,1996,23(2):29-31.[6],,,.[J].,2002,31(5):49-50.[7],,.S[J].,2005,33(10):16-19.[8],,,.[J].,2004,19(5):598-603.[9].[J].,1997,18(5):40-43.[10],,.LG-2/130[J].,2005,42(6):42-44.[11].[J].(),2008.10:90-92.44463