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1、泵类基础知识()Thenonleakagepumpincludescannedpump,magneticpump,positivedisplacementdiaphragmpump,electromagneticpump,etc..Accordingtotheengineeringhabit,noleakagepumpreferstocannedpumpandmagneticpump,popularlyknownasnonsealpump・Thenonleakagepumpincludescannedpump,magneticpump,positive
2、displacementdiaphragmpump,electromagneticpump,etc..Accordingtotheengineeringhabit,noleakagepumpreferstocannedpumpandmagneticpump,popularlyknownasnonsealpump・Inthenonleakagepump,thecannedmotorpumpiswidelyused.Thepumpismainlycomposedofapumpbody,impeller,stator,rotor,bearingandthru
3、stplatebeforeandafter,motorandpumpintoone,betweenthestatorandtherotorwithnonmagneticthinmaterialshieldingsleevebearingrotorseparatedbythebeforeandafterthedipinthetransmissionmedium.Whenthestatorwindingisenergized,theelectromagneticenergyisintroducedthroughtheshieldingsleevetodri
4、vetherotortorotate,andthentodrivetheimpellertotransportthemedium・Magneticpumpisthemagneticforceproducedbytheinternalandexternalmagneticrotorinstalledonthepumpshaftandmotorshaft,whichtransfersthemotortorquetothepumpshaft,andthendrivestheimpellertotransportthemedium.Whenthemotorro
5、tates,theoutermagneticrotorattractseachotherthroughtheisolationsleeveandtheinnermagneticrotor,whichdrivesthepumpshaftandtheimpellertorotate・Thenumberofthemagneticpiecesoftheinternalandexternalrotoristhesame,formingonetoonepolerelation,andthetwoaresynchronousrotating・Becausetheis
6、olationsleevecompletelysealsthepumpshaft,noshaftsealandnoleakageareachieved・Noleakageofpumpsarewidelyusedincorrosivemediuminchemicalproduction,transportationprojectofionicmembranecausticsodachlorinewastewatertreatmentandaddingacidtechnology(mostofthecurrentdomesticcausticsodapro
7、jectwithpumpwerechosensuchapump),picklingtechnologyinautomobilemanufacture,transportofelectrolyteinnon-ferrousmetalsmelt,andpharmaceuticalandpetroleumelectricpower,electroplating,dyes,pesticides,papermaking,food,textileandotherindustries,inthe-20to150DEGCtemperatureunderthecondi
8、tionoflonglostanyoftheconcentrationofsulfuricac
