Txij li thaum lub siab poob ntawm npauj npaim li qub hauv cov raj xa dej yog qhov loj, kwv yees li peb zaug ntawm lub rooj vag li qub, thaum xaiv cov npauj npaim li qub, qhov cuam tshuam ntawm kev poob siab ntawm cov kav dej yuav tsum tau txiav txim siab tag nrho. Lub zog ntawm npauj npaim phaj kom tiv taus lub siab ntawm cov kav dej nruab nrab thaum kaw yuav tsum tau txiav txim siab. poj niam deev.
Tsis tas li ntawd, kev ua haujlwm kub txwv ntawm elastic valve lub rooj zaum cov khoom ntawm qhov kub thiab txias yuav tsum tau txiav txim siab.
Cov txheej txheem ntev thiab tag nrho qhov siab ntawm npauj npaim valve yog me me, qhov qhib thiab kaw nrawm nrawm, thiab nws muaj cov yam ntxwv zoo tswj cov kua dej. Lub hauv paus ntsiab lus ntawm tus npauj npaim valve yog tsim los ua cov kab loj-ntev li qub.
Thaum npauj npaim valve yuav tsum tau siv los tswj kev ntws, nws yog ib qho tseem ceeb kom xaiv qhov loj thiab hom npauj npaim valve kom nws ua haujlwm tau zoo thiab zoo. Centerline npauj npaim li qub feem ntau yuav tsum muaj qhov ntev ntawm cov qauv thiab qhib thiab kaw ceev (1/4 tig) hauv throttling, tswj tswj thiab av nkos xov xwm.
Rau qhov tsis tshua muaj siab txiav tawm (qhov sib txawv me me), npauj npaim valve raug pom zoo. Npauj npaim li qub tuaj yeem siv tau thaum muaj ob txoj haujlwm hloov kho, cov kev txwv nruj, tsis tshua muaj suab nrov, cavitation thiab vaporization phenomena, ib qho me me ntawm cov pa tawm mus rau hauv qhov chaw, thiab cov xov xwm abrasive.
Thaum throttling raug kho raws li kev ua hauj lwm tshwj xeeb, yuav tsum tau nruj sealing, los yog npauj npaim li qub yog siv nyob rau hauv hnyav hnyav, tsis tshua muaj kub (cryogenic) thiab lwm yam kev ua hauj lwm, yuav tsum tau ib tug tshwj xeeb tsim hlau sealing siv kho cuab yeej nrog triple eccentricity los yog ob chav eccentricity yuav tsum tau. npauj npaim valve.
Cia peb saib cov yam ntxwv ntawm cov hluav taws xob npauj npaim li qub:
1. Nws tseem muaj qhov ruaj khov sealing kev ua tau zoo nyob rau hauv qhov kub thiab txias siab. Nws qhov tshwj xeeb sealing system tuaj yeem ua kom muaj kev sib khi zoo hauv ntau qhov kub thiab txias ntawm ultra-low kub mus rau ultra-siab kub.
2. Peb-dimensional eccentric sealing system thiab optimized tsim ua rau lub valve qhib tsis kam me me. Lub sealing nto ntawm tus npauj npaim phaj yog ib lub convex upwardly. Thaum qhib, tag nrho cov ntsiab lus ntawm lub voj voog ncig ntawm lub phaj npauj npaim ua tiav qhov kev sib cais los ntawm lub nplhaib sealing tib lub sijhawm, thiab cov khoom siv tsis yooj yim rau ntawm qhov chaw sealing. Cov txheej txheem kaw lub valve yog ua tiav los ntawm elastic siab ntawm lub nplhaib sealing.
3. Tsis muaj theem jamming ntawm npauj npaim phaj thiab lub nplhaib sealing.
4. Lub sealing kev ua tau zoo ntawm lub valve tsis cuam tshuam los ntawm kev hloov kub.
5. Lub valve qia ncej txoj kab uas hla foob siv lub graphite xovxwm-tsim sealing nplhaib. Hauv cov ntsiab lus, nws ua kom xoom xoom. Tsis tas li ntawd, cov hlau foob muaj xoom xau ua ntej, thaum lub sij hawm thiab tom qab hluav taws kub, yog li nws yog hom hluav taws kub intrinsically zoo.