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1、英文原文PerformanceStudyBasedonInnerFlowFieldNumericalSimulationofMagneticDrivePumpswithDifferentRotateSpeedsAbstract:Magneticdrivepumphasgottengreatachievementandhasbeenwidelyusedinsomespecialfields.Currently,theresearchesonmagneticdrivepumphavefocusedonhydraulicdesig
2、n,bearing,axialforceinChina,andanewmagneticdrivepumpwithlowflowandhighheadhavebeendevelopedoverseas.However,lowefficiencyandlargesizearethecommondisadvantagesforthemagneticdrivepump.Inordertostudytheperformanceofhigh-speedmagneticdrivepump,FLUENTwasusedtosimulateth
3、einnerflowfieldofmagneticdrivepumpswithdifferentrotatespeeds,andgetvelocityandpressuredistributionsofinnerflowfield.Accordingtoanalysisthechangesofvelocityandpressuretoensurethestableoperationofpumpandavoidcavitation.Basedontheanalysisofvelocityandpressure,thispape
4、rpresentsthepumpefficiencyofmagneticdrivepumpswithdifferentrotatedspeedsbycalculatingthepowerlossinimpellerandvolute,hydraulicloss,volumetricloss,mechanicallossanddiscussingthedifferentreasonsofpowerlossbetweenthemagneticdrivepumpswithdifferentrotatedspeeds.Inaddit
5、ion,themagneticdrivepumpsweretestedinaclosedtestingsystem.Pressuresensorsweresetininletandoutletofmagneticdrivepumpstogetthepressureandthehead。Theresultsofsimulationandtestweresimilar,whichshowsthatthemethodofsimulationisfeasible.Theproposedresearchprovidestheinstr
6、uctiontodesignhigh-speedmagneticdrivepump.Keywords:magneticdrivepump,simulation,powerloss,pumpefficiency.1.IntroductionMagneticdrivepumpsarecurrentlyusedinpetrolandchemicalindustriestopumptoxic,explosive,corrosiveandexpensivefluid.High-speedmagneticdrivepumpwillhav
7、eanextensiveprospectwiththeapplicationoffrequencyconversiontechnologyandtherequirementofenvironmentalprotection.Currently,studiesonthedesignofmagneticdrivepump,bearing,axialforceandmagneticcouplinghavebeengoingonforseveralyears,andsomeachievementshavebeengot.Jiangs
8、uUniversitydevelopedthemagneticdrivepumpwithhighpower,whichprovidedthedesignmethodofmagneticdrivepump.KongFnayudevelopedanewbearingmaterialFC50[4