第1页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共7页TorqueoverloadprotectionValveelectricdeviceisusedtooperatethevalveandwasoneofthevalvesconnectedtothedevice.Thedeviceisdrivenbyelectricity,theirmotionprocesscanbestroke,torque,ortocontrolthesizeoftheaxialthrust.Asthevalveshouldbetheworkofelectricaldevicecharacteristicsandutilizationdependonthetypeofvalves,fittingsandvalvesregulatetheworkofthepipelineorequipmentlocation.Therefore,controlvalveelectricdevicetherightchoice;considerthepreventionofoverload(workingtorquehigherthanthecontroltorque)hasbecomeessentialtotheoccurrenceofaring.Valveelectricdevicerightchoiceshouldbebasedon:1.Operationtorque:Operationtorqueistoselectthemainvalveelectricaldeviceparameters.Theoutputtorqueelectricactuatorvalveoperationshouldbethegreatestmomentof1.2~1.5times.2.OperationThrust:thehoststructureofMOTORIZEDVALVEACTUATORthevalveelectricdevice,therearetwo,oneisnotconfiguredthrustplate,thistimedirectlytotheoutputtorque;theotherisequippedwiththrustplate,andthistimetheoutputtorqueofthevalvestemthroughthethrustdisknutisconvertedtotheoutputthrust.3.Numberofoutputshaftrotationcircle:valveelectricactuatoroutputshaftrotationthenumberoflapsandthevalvenominaldiameter,stempitch,threadthefirstfewrelated,accordingtoM=H/ZScomputing(where:Mfortheelectricalinstallationsshouldbetomeetthetotalnumberofrotatingring;Hofthevalveopeningheight,mm;Stostemtransmissionthreadpitch,mm;Ztostemthenumberofscrewheads.)4.StemDiameter:Formulti-turntypevalvesforthenextshot,iftheelectricactuatorallowsthemaximumstemdiameterofthevalvestemcannotbedispensed,itcannotbeassembledintoelectricvalve.Therefore,theelectricaldevicehollowoutputshaftdiametermustbegreaterthanspecifiedunderthevalvestemdiameter.Forsomerotaryvalves,aswellasmulti-turnvalvesinthedarkbarvalve,althoughwithoutconsideringtheadoptionofstemdiameter,butshouldalsotakefullaccountofthematchingstemdiameterandkeywaysize,sothatworkcanbeassembled.5.OutputSpeed:valveKai,closedfast,easytoproducewaterhammerphenomenon.Shouldthereforebeunderdifferentconditionsofuse,choosetheappropriateKaiandclosingspeed.6.Theinstallation,connectionmethod:electricequipmentinstallationforverticalinstallation,theleveloftheinstallation,floorinstallation;connectionsasfollows:Arethrustplate;stemthrough(Mingpolemulti-turnvalves);darkbarmulti-turn;withoutthrustdisk;stemisnotpassed;partoftherotationElectricdeviceiswidelyused,istoachieveproductionprogram-controlledvalves,automaticcontrolandremotecontrolcannotbealackofequipment,itsmainuseintheclosedvalve.Butwecannotignorethespecialrequirementsofvalveelectricdevice-mustbeabletolimitthetorqueoraxialforce.ValveElectricinstallationsareusuallylimitedtorqueCouplings.Whentheelectricaldevicespecificationisdetermined,thecontroltorqueisalsodetermined.Whileinapre-determinedperiodoftimetorunwhenthemotornormallydoesnotoverload.However,ifthefollowingconditionssothatitcanbeoverloaded:1.Powersupplyvoltageislow,arenotrequiredtorque,themotorstopsrotating.2.Mistakenlysetthetorquelimitadjustmentagencies,sothatitisgreaterthanstoptorque,generatedtoolargearesultofcontinuoustorque,themotorstopsrotating.3.Suchasthepointofactionasintermittentuseofheatgeneratedsavingsofup,morethantheallowabletemperatureriseofthemotor.4.第2页共7页第1页共7页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共7页Torque...
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