1. Concentric Npauj Npaim Valve:
Lub ntsiab lus txhais: Lub axis ntawm kev sib hloov ntawm lub valve disc coincides zoo kawg nkaus nrog rau qhov chaw ntawm lub valve lub cev thiab qhov chaw ntawm lub valve disc nws tus kheej.
Sealing thiab Friction Characteristics: Thaum lub sij hawm qhib thiab kaw, ntug ntawm lub valve disc tseem nyob rau hauv tas li kev sib txhuam nrog lub sealing nto thoob plaws tag nrho cov hlab ntsha. Qhov no ua rau lub sealing nto yuav hnav, ua rau lub neej ua haujlwm luv dua; Tsis tas li ntawd, qhov kev sib txhuam siab ua haujlwm yuav tsum muaj kev ua haujlwm siab dua rau kev qhib thiab kaw.
Daim ntawv thov:
Tsim nyog rau qis - siab, ib txwm - kub xov xwm qhov twg sealing yuav tsum tsis yog tshwj xeeb tshaj yog nruj heev - xws li cov kav dej dav dav, HVAC dej systems, thiab lwm yam.
2. Ob npaug -Eccentric Npauj Npaim Valve:
Txhais: Tsim raws li ib qho - eccentric tsim, ib tug thib ob eccentricity yog qhia- lub valve qia yog offset los ntawm qhov chaw ntawm lub valve lub cev sealing nto.
Sealing thiab Friction Characteristics: Ob lub eccentricities ua hauj lwm nyob rau hauv tandem los xyuas kom meej tias lub valve disc kiag li disengages los ntawm sealing nto thoob plaws tag nrho cov txheej txheem qhib thiab kaw, yog li ua tiav "zero kev sib txhuam." Ob chav -eccentric qauv nta ib "nruj-raws li-nws-kaw" sealing muaj nuj nqi.
Daim ntawv thov:
Cov xwm txheej uas yuav tsum tau muaj kev sib khi tshwj xeeb, xws li hauv nroog qis - cov pa hluav taws xob xaim hluav taws xob, cov chaw kho dej khib nyiab, thiab kev tuav ntawm ib txwm muaj - cov dej kub huv hauv cov khoom noj thiab tshuaj lag luam.
3. Triple -Eccentric Npauj Npaim Valve:
Txhais: Tsim raws li ob - eccentric tsim, ib tug thib peb eccentricity yog qhia- cov hlau sealing nto ntawm lub valve disc yog angled txheeb ze rau lub dav hlau geometric ntawm lub disc nws tus kheej.
Sealing thiab Friction yam ntxwv:
Nws khaws qhov zoo ntawm ob -eccentric tsim- "zero kev sib txhuam thoob plaws hauv tag nrho cov txheej txheem qhib thiab kaw." Thaum kaw tag nrho, lub kaum sab xis sealing nto ua ib qho "wedge- haum" nrog lub valve lub cev sealing nto, yog li ua tiav "hlau- rau-hlau nyuaj foob."
Daim ntawv thov:
Kev khiav hauj lwm hnyav, xws li siab - cov kav dej kub hauv cov chaw tsim hluav taws xob, cov kav dej tshuaj rau cov kua qaub thiab alkali thauj, ntev - cov roj thiab cov kav xa hluav taws xob, thiab cov kav dej kub hauv cov chaw tsim khoom.
