Npauj npaim valve yog ib hom valve uas siv lub disc -zoo li tus qhib thiab kaw lub ntsiab kom reciprocate kwv yees li 90℃qhib, kaw, los yog tswj cov ndlwg ntawm cov xov xwm. Npauj npaim li qub tsis yog yooj yim hauv cov qauv, me me, lub teeb yuag, kev lag luam hauv cov khoom siv, me me hauv kev teeb tsa qhov ntev, tsis tshua muaj kev tsav tsheb torque, thiab yooj yim thiab ceev rau kev khiav lag luam, tab sis lawv kuj muaj kev tswj hwm zoo heev thiab sealing yam ntxwv, ua rau lawv yog ib qho ceev tshaj plaws - loj hlob valve hom nyob rau hauv kaum xyoo dhau los. Kev siv npauj npaim li qub yog dav heev. Cov hom thiab ntau npaum li cas siv txuas ntxiv mus, thiab lawv tab tom txhim kho mus rau qhov kub thiab txias, siab siab, txoj kab uas hla loj, kev ua haujlwm siab sealing, lub neej ua haujlwm ntev, cov yam ntxwv zoo heev, thiab ntau yam -functionality. Lawv qhov kev ntseeg siab thiab lwm yam kev ntsuas kev ua tau zoo tau mus txog qib siab.
Nrog rau daim ntawv thov ntawm chemically resistant hluavtaws roj hmab nyob rau hauv npauj npaim li qub, lawv cov kev ua tau zoo lawm. Synthetic roj hmab muaj cov yam ntxwv xws li corrosion kuj, yaig tsis kam, seem stability, zoo resilience, yooj yim ntawm molding, thiab tus nqi qis. Cov khoom sib txawv ntawm cov roj hmab hluavtaws tuaj yeem xaiv tau raws li cov ntawv thov sib txawv kom tau raws li kev ua haujlwm ntawm npauj npaim valve.
Polytetrafluoroethylene (PTFE) muaj zog corrosion kuj, ruaj khov kev ua tau zoo, tiv thaiv kev laus, tsis tshua muaj coefficient ntawm kev sib txhuam, yooj yim ntawm molding, thiab seem stability. Tsis tas li ntawd, nws qhov kev ua tau zoo tag nrho tuaj yeem txhim kho los ntawm kev sau thiab ntxiv cov khoom tsim nyog, ua rau npauj npaim valve sealing cov ntaub ntawv nrog lub zog zoo dua thiab qis coefficient ntawm kev sib txhuam, kov yeej cov kev txwv ntawm cov roj hmab hluavtaws. Yog li ntawd, siab -molecular polymers, sawv cev los ntawm PTFE, thiab lawv cov kev hloov pauv tau siv dav hauv cov npauj npaim li qub, ntxiv dag zog rau lawv cov kev ua tau zoo thiab ua rau kev tsim cov npauj npaim li qub nrog qhov dav ntawm qhov kub thiab txias, kev ua tau zoo sealing, thiab kev pab lub neej ntev dua.
Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj ntawm cov ntawv thov kev lag luam uas muaj qhov kub thiab qis qis, muaj zog yaig, thiab lub neej ua haujlwm ntev, hlau - kaw npauj npaim li qub tau pom kev txhim kho tseem ceeb. Nrog rau daim ntawv thov ntawm siab- kub resistant, qis- kub resistant, muaj zog corrosion resistant, muaj zog erosion resistant, thiab siab-lub zog alloy cov ntaub ntawv nyob rau hauv npauj npaim li qub, hlau- kaw npauj npaim li qub tau dav siv nyob rau hauv industrial teb xav tau kub thiab tsis kub, muaj zog erosion, lub neej ntev. Qhov no tau ua rau muaj qhov tshwm sim ntawm npauj npaim li qub nrog cov kab loj (9 ~ 750mm), siab siab (42.0MPa), thiab qhov kub ntawm qhov dav (-196 ~ 606 degree), coj npauj npaim valve tshuab mus rau qib tshiab.
Npauj npaim li qub pom muaj qhov tsis txaus txaus thaum qhib tag nrho. Thaum qhib nruab nrab ntawm kwv yees li 15℃thiab 70 degree, lawv muab rhiab txaus tswj, ua rau lawv dav siv nyob rau hauv loj - daim ntaub ntawv txoj kab uas hla.
Vim yog qhov kev txav ntawm cov npauj npaim valve disc, feem ntau npauj npaim li qub tuaj yeem siv nrog cov xov xwm uas muaj cov khoom raug tshem tawm. Nyob ntawm lub zog ntawm lub foob, lawv tuaj yeem siv nrog cov hmoov thiab granular media.
Npauj npaim li qub yog tsim rau kev khiav dej num. Vim tias qhov poob siab hauv cov raj xa dej kuj loj heev rau cov npauj npaim li qub, kwv yees li peb zaug ntawm lub rooj vag li qub, qhov cuam tshuam ntawm kev poob siab ntawm cov kav dej yuav tsum tau txiav txim siab thaum xaiv lub npauj npaim valve. Lub zog ntawm lub disc tiv thaiv cov kav dej nruab nrab siab thaum kaw yuav tsum tau coj mus rau hauv tus account. Tsis tas li ntawd, qhov kev txwv kub ntawm kev ua haujlwm ntawm cov khoom siv lub rooj zaum ntawm lub rooj zaum ntawm qhov kub siab yuav tsum raug txiav txim siab.
Npauj npaim li qub muaj qhov ntev me me ntawm cov qauv thiab qhov siab tag nrho, qhib nrawm thiab kaw nrawm, thiab cov yam ntxwv tswj dej zoo heev. Lub hauv paus ntsiab lus ntawm cov npauj npaim li qub yog qhov zoo tshaj plaws rau kev tsim loj - txoj kab uas hla li qub. Thaum npauj npaim li qub xav tau rau kev tswj kev khiav dej num, qhov tseem ceeb tshaj plaws yog xaiv kom raug lub valve qhov tshwj xeeb thiab hom kom ua haujlwm tau zoo thiab ua haujlwm tau zoo.
Feem ntau, npauj npaim li qub tau pom zoo rau kev throttling, kev tswj hwm, thiab cov ntawv thov uas muaj cov xov xwm slurry uas qhov ntev ntawm cov qauv, qhib thiab kaw nrawm, thiab qis - siab kaw- tawm (qhov sib txawv me me) yuav tsum tau. Npauj npaim li qub kuj tseem siv tau rau ob - txoj cai tswj hwm txoj haujlwm, nqaim- bore channels, qis- daim ntawv thov suab nrov, cov xwm txheej nrog cavitation thiab vaporization, me me to hauv huab cua, thiab cov xov xwm abrasive. Lawv kuj tsim nyog rau kev tswj hwm kev tswj hwm raws li kev ua haujlwm tshwj xeeb, lossis rau cov ntawv thov uas xav tau kev sib khi nruj, hnav hnyav, lossis qis- kub (cryogenic) tej yam kev mob.
