文档介绍：迷宫密封的结构型式磨阻效应Labyrinthsealissetseveralsequentialcircuitaroundtheshaftsealingteeth,toothandtoothformaseriesofriverclosuregapbetweenwithexpansionofcavity,thesealedmediumduringwindingthroughamazeofclearaneethrottleeffectandachievethegoalofleakageresistance・Becauseoflabyrinthsealclearancebetweentherotorandthecasing,withoutasolidcontact,withoutlubrication,andallowthethermalexpansion,toadapttothehightemperatureandhighpressure,asions,thiskindofsealiswidelyusedinsteamturbine,pressor,"labyrintheffect〃・Fluidmechanicaleffect,ineludinghydraulicfrictioneffectandtheeffectoff1owcontraction;Andthethermodynamiceffectofthegas,pressionorexpansionofthegasinthemaze:Inaddition,thereare^breathableeffects〃・Themazeeffectisthesynthesisoftheseeffects,,,thepathfrictionofthefluidalongthef1owcharmelandthepartialresistanceconstitutesthegrindingresistaneeeffect,theformerisassociatedwiththelengthandcrosssectionshapeofthechannel,whichisrelatedtothebendingnumberandshapeofthemaze・Generally:whentheflowislong,thecurveissharp,thetoothisthetop,theresistanceisbig,thepressuredifferenceissignific