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《高比轉(zhuǎn)數(shù)雙蝸殼混流泵設(shè)計(jì)及流動(dòng)特性分析高比轉(zhuǎn)數(shù)雙蝸殼混流泵設(shè)計(jì)及流動(dòng)特性分析》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、高比轉(zhuǎn)數(shù)雙蝸殼混流泵設(shè)計(jì)及流動(dòng)特性分析高比轉(zhuǎn)數(shù)雙蝸殼混流泵設(shè)計(jì)及流動(dòng)特性分析泵；優(yōu)化；設(shè)計(jì)；高比轉(zhuǎn)數(shù)；雙蝸殼；流動(dòng)特性；徑向力Designandinternalflowfieldanalysisofhighspecificmixed-flowpumpwithdoublevolutesShiWei1,2,LiYanjun1,YuanShouqi1,DengDongsheng2,LiuJun2,ZhangDaqing1(1.NationalResearchCenterofPumps,JiangsuUniversity,Zhenjiang212013,China;2.JiangsuWaterSou
2、rceCo.,Ltd.oftheEasternRouteofSouth-to-NorthWaterDivision,Nanjing210029,China)Abstract:Globalenergyissuesaffecttheeconomicdevelopment,itisthebaseofimprovingnationalstandardoflivingconditions.Accordingtoincompletestatistics,powerconsumptionofpumpsaccountapproximately17％oftotalgeneratingcapacity.Ther
3、ebyincreasingtheefficiencyofthepumpisnecessarytoenergyconservationwhichalsohasaveryimportantsignificanceoncreatingaresource-savingsociety.Mixed-flowpumpsaremoreandmorewidelyappliedtoindustrialandagriculturalproduction,therequirementoftheperformanceofthemixed-flowpumpbecomeincreasinglyhigh.Whenthewo
4、rkingconditiondeviatesfromthedesignedcondition,theflowfiledatimpelleroutletdoesnotmatchwellwiththeflowfieldatvoluteinlet,whichwillleadtotheefficiencydropofmixed-flowpump.Reasonabledesignofmixed-flowpumpimpellerandvolutecanimprovethedistributionofflowfield,andthenimprovethehydraulicperformanceofthem
5、ixed-flowpump.Basedontheoreticalanalysis,numericalsimulationandmodelexperimentresearchmethods,impellerandvolutematchingoptimizationofhighspecificmixed-flowpumpwithvolutewereconducted.Thispaperdevelopedahigh-performancemixed-flowpumpmodelwithdoublevoluteswhosensequalsto585withthetargetofperfectmatch
6、betweenimpellerandvoluteunderdifferentflowrateconditions.Thefullthree-dimensionalnumericalcalculationinternalflowfieldandradialforceoftheoptimaldesignedhighspecificspeedmixed-flowpumpwithdoublevoluteswasinvestigated.Numericalsimulationofthepumpusedthestandardκ-εturbulencemodel.Theκ-εturbulencemodel
7、wasconsideredtobeamodelwhichcanpredictthehydraulicperformanceandsimulatetheinternalflowfieldaccurately.Thecalculationdomaincontainsinletpipe,runner,volute,outletpipe.Andthemeshofinletpipeandoutletpipeadopte
