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1、英文翻译MechanicalstirringchestbackplateresearchMechanicalstirringchestreasonablestructureincludingmixerchoice,stirringcheststructureaswellasbackplatestructuralstyle.Anyplacementthestaticpartallconstitutesthebackplatebesideinthestirringdevicetrough.Thustheba
2、ckplatemaydivideintotwokinds:ThemostcommonbackplateformisverticalinstallsYuCaobithecomponent,namelywallbackplate;Anotherkindisthespecialbackplate,theshape,thepositionrespectivelydifferent,isconfidentthebackplate,thesuperficialbackplateandsoon,intherecupe
3、ratortubeandtheinsertiontroughundertheliquidlevelvaporpipe,theairconduitandtheinletpipeandsooninternalcomponentalsocanplaythebackplaterole.First,thebackplatefunctionbackplatebasicfunction,ischangestheliquidrotarymotiontheverticaltiltingmotion,eliminatest
4、hewhirlpool,simultaneouslyimprovesexertsthepowertheeffectiveusefactor.Thebackplatehaslimitedtheliquidtangentialspeed,increasedaxialandtheradialvelocitycomponent,itspurificationisenablethemixerexhauststreamtohaveawidermobileradius,theexhauststreamwhichmix
5、errevolvingproduces,becauseofthetroughwallandthebackplatefunction,formsinthestirringchestthecomplexflowfield,theflowpattern,thespeedsizeandthedirectionandsoonhasbecauseofthemixerimpellerandthebackplatemutualfunctionthechange,themixeffectobtainstheremarka
6、bleenhancement.Second,theentirebackplateconditionpoweristhemixercharacteristicparameter.Regardingspecificmixer(impellerformandrotationalspeedinvariable),thepowerincreasesalongwiththebackplatecoefficientincreases.Butwhenthebackplatecoefficientachievedwhen
7、certainvalue,thepowercannotfurtherincrease,butisthebasicmaintenanceisconstant.Thistimethrustplatecoefficientiscalledtheentirebackplatecondition,namelytheagitationpowerachievessaturated.Inthestirringchestactualdesign,accordingtothebackplatewidth,quantitye
8、mpiricalstipulatedthat,usuallyusesverticalYuCaobi4widthbdistheD/12〜D/10backplate(calledgenerallyitustandardbackplate")satisfiestheentirebackplatecondition,thisisbecauseofthebasisformula(1),undertheentirebackplateconditionb
