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1、英文原文PerformanceStudyBasedonInnerFlowFieldNumericalSimulationofMagneticDrivePumpswithDifferentRotateSpeedsAbstract:Magneticdrivepumphasgottengreatachievementandhasbeenwidelyusedinsomespecialfields.Currently,theresearchesonmagneticdrivepumphavefocusedonhydraulicdesign,bea
2、ring,axialforceinChina,andanewmagneticdrivepumpwithlowflowandhighheadhavebeendevelopedoverseas.However,lowefficiencyandlargesizearethecommondisadvantagesforthemagneticdrivepump.Inordertostudytheperformanceofhigh-speedmagneticdrivepump,FLUENTwasusedtosimulatetheinnerflow
3、fieldofmagneticdrivepumpswithdifferentrotatespeeds,andgetvelocityandpressuredistributionsofinnerflowfield.Accordingtoanalysisthechangesofvelocityandpressuretoensurethestableoperationofpumpandavoidcavitation.Basedontheanalysisofvelocityandpressure,thispaperpresentsthepum
4、pefficiencyofmagneticdrivepumpswithdifferentrotatedspeedsbycalculatingthepowerlossinimpellerandvolute,hydraulicloss,volumetricloss,mechanicallossanddiscussingthedifferentreasonsofpowerlossbetweenthemagneticdrivepumpswithdifferentrotatedspeeds.Inaddition,themagneticdrive
5、pumpsweretestedinaclosedtestingsystem.Pressuresensorsweresetininletandoutletofmagneticdrivepumpstogetthepressureandthehead。Theresultsofsimulationandtestweresimilar,whichshowsthatthemethodofsimulationisfeasible.Theproposedresearchprovidestheinstructiontodesignhigh-speedm
6、agneticdrivepump.Keywords:magneticdrivepump,simulation,powerloss,pumpefficiency.1.IntroductionMagneticdrivepumpsarecurrentlyusedinpetrolandchemicalindustriestopumptoxic,explosive,corrosiveandexpensivefluid.High-speedmagneticdrivepumpwillhaveanextensiveprospectwiththeapp
7、licationoffrequencyconversiontechnologyandtherequirementofenvironmentalprotection.Currently,studiesonthedesignofmagneticdrivepump,bearing,axialforceandmagneticcouplinghavebeengoingonforseveralyears,andsomeachievementshavebeengot.JiangsuUniversitydevelopedthemagneticdriv
8、epumpwithhighpower,whichprovidedthedesignmethodofmagneticdrivepump.KongFnayudevelopedanewbearingmaterialFC50[4
