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1、电磁阀工作原理解析Solenoidvalveathomeandabroadfromtheprincipleisdividedintothreecategories(i.e.:directacting,stepbystep,andtheamountofpilot)fromdifferentandprincipleofthevalvestructureandmaterialsonthedividedintosixbranchtype(straightactiondiaphragmstructure,stepbystepheavyplatestructure,pi
2、lotfilmtypestructurestraightmovingpistonstructure,directactingpistonstructurestepbystep,thepilotpistonstructure)・Forsmallautomaticcontrolequipment,thetracheaisusuallymadeof812mmindustrialrubbertube・Inelectricalterms,two一bitthree一waysolenoidvalveisgenerallysingleelectriccontrol(that
3、is,singlecoil),two-bit,five-waysolenoidvalveisgenerallydouble-control(thatis,doublecoi1).CoilvoltagelevelsgenerallyuseDC24V,AC220Vandsoon.Twopositionthreewaysolenoidvalveisnormallyclosedandnormallyopentypetwo,normallyclosedtypereferstothecoilisnotenergizedwhentheroadisbroken,thenor
4、mallyopentypereferstothecoilisnotenergizedwhentheroadis.Normallyclosedtypetwobitthreewaysolenoidvalveactionprinciple:tothecoilenergized,gaslinethrough,oncethecoilisswitchedoff,thegaspathwillbedisconnected,whichisequivalentto"inching.〃“.Normallyopentypetwobit,threewaysingleelectroni
5、callycontrolledsolenoidvalveactionprinciple:tothecoilenergized,gaspathoff,oncethecoilisswitchedoff,thegaspathwillbeconnected,andthisis"inching."〃・Twopositionfivewaydoublesolenoidvalveactionprinciple:toactioncoilsareconnected(actiongaspathwasmade,theporositygas)eveniftheactionisthec
6、oilpoweractionisthegaspathisstillconnected,andwillbemaintaineduntilthecoilpowertocounteraction.Coilpowertocounteraction,thenthegaslineantiactionsconnect(tomakeholesreactionarygas),evenifthecoilmovestothecountergaspathafterthepowerisstillconnected,andwillbemaintainedtogivepositiveac
7、tioncoilssofar・Thisisequivalentto"self-locking"・Thecharacteristicsofthetwopositionfivewaydoublesolenoidvalvebasedon,inthedesignofmechanicalandelectricalcontrolcircuitoraPLCprogram,thesolenoidvalvecoilcanmove广2seconds,thiscanprotectthesolenoidvalvecoilisnoteasytodamage・Thesolenoidva
8、lveinhydraulicsystemusedto
