Npauj npaim valve yog ib hom ntawm valve uas siv disc hom qhib thiab kaw qhov chaw kom tig txog 90 ° kom qhib, kaw lossis tswj nruab nrab ntws. Npauj npaim valve tsis yog tsuas yog yooj yim hauv cov qauv, me me ntawm lub teeb me me, lub teeb hauv qhov hnyav, kev siv khoom tsawg, me me hauv kev teeb tsa loj, me me nyob rau hauv kev tsav tsheb torque, yooj yim thiab nrawm hauv kev ua haujlwm, tab sis kuj muaj cov kev tswj khiav dej num zoo thiab kaw sealing cov yam ntxwv ntawm tib lub sijhawm. Nws yog ib qho ntawm kev loj hlob ceev tshaj plaws ntawm ntau yam sib txawv hauv kaum xyoo dhau los. Npauj npaim li qub tau dav siv. Qhov ntau thiab ntau ntawm nws txoj kev siv tseem nthuav dav, thiab nws tab tom tsim kho qhov kub thiab txias, ntshav siab, lub taub loj, ntim siab, lub neej ntev, kev coj zoo ntawm cov yam ntxwv, thiab muaj ntau yam ntawm ib lub valve. Nws ntseeg tau thiab lwm qhov ntsuas kev ua tiav tau mus txog qib siab.
Nrog rau daim ntawv thov ntawm cov khoom siv tshuaj lom neeg cov roj hmab hluav taws xob hauv npauj npaim valve, qhov ua tau zoo ntawm npauj npaim valve tuaj yeem hloov kho. Cov roj hmab hluavtaws muaj cov yam ntxwv ntawm kev ua haujlwm ntawm corrosion, yaig tsis kam, dim seem, zoo dua qub, yooj yim ua thiab yooj yim tus nqi, thiab tuaj yeem xaiv raws li qhov sib txawv kom tau raws li kev ua haujlwm ntawm npauj npaim valve.
Polytetrafluoroethylene (PTFE) muaj qhov muaj zog tiv thaiv corrosion, kev ua haujlwm ruaj khov, tsis yooj yim rau kev laus, kev sib txhuam tsis sib haum, yooj yim sib sau, ruaj khov loj, thiab nws cov kev ua tau zoo tuaj yeem txhim kho los ntawm kev sau thiab ntxiv cov ntaub ntawv tsim nyog kom tau txais npauj npaim valve sealing cov khoom nrog lub zog zoo dua thiab qis txhuam kev sib txhuam coefficient, uas kov yeej cov kev txwv ntawm cov roj hmab hluavtaws. Yog li ntawd, polytetrafluoroethylene (PTFE) yog tus sawv cev ntawm cov khoom siv polymer polymer polymer Cov khoom siv thiab lawv cov khoom siv tau hloov tau siv dav hauv npauj npaim li qub, yog li kev ua tau zoo ntawm npauj npaim li qub tau txhim kho ntxiv lawm. Npauj npaim li qub nrog dav dua kub thiab siab ntau yam, txhim khu kev qha kev ua tau zoo thiab kev pab cuam lub neej ntev tau tsim tawm.
Txhawm rau kom ua tau raws li qhov yuav tsum tau ua ntawm siab thiab qis kub, muaj zog xeb, lub neej ntev thiab lwm yam kev siv, hlau ntim npauj npaim valve tau tsim tau zoo heev. Nrog rau daim ntawv thov ntawm qhov kub thiab txias tsis kam, siab kub tsis kam, muaj zog corrosion, muaj zog tiv taus thiab lub zog loj cov ntaub ntawv hauv npauj npaim li qub, hlau ntim npauj npaim li qub tau dav siv nyob rau hauv siab thiab qis kub, muaj zog tiv thaiv, kev pab lub neej ntev thiab lwm yam cov liaj teb muaj. Cov npauj npaim li qub nrog lub taub loj (9 ~ 750mm), lub zog siab (42.0mpa) thiab qhov kub thiab txias (- 196 ~ 606 ℃) tau tshwm sim, uas ua rau lub npauj npaim valve technology nce mus txog qib tshiab。
Lub npauj npaim valve muaj qhov me me tsis kam thaum nws qhib tag nrho. Thaum lub pob qhib yog li ntawm 15 ° txog 70 ° nws tuaj yeem tswj hwm qhov khiav nrawm. Yog li ntawd, npauj npaim valve yog siv dav hauv thaj tsam ntawm txoj kab uas hla loj txoj cai.
Raws li tus npauj npaim valve disc txav nrog so, yog li feem ntau npauj npaim li qub tuaj yeem siv nrog cov khoom cais tawm ntawm qhov nruab nrab. Raws li lub zog ntawm lub foob, nws kuj tseem siv tau ua hmoov thiab xov xwm.
Npauj npaim li qub yog tsim nyog rau cov cai tswj. Txij li thaum lub siab poob ntawm npauj npaim valve hauv cov yeeb nkab yog qhov loj, uas yog kwv yees li peb zaug ntawm qhov ntawm lub rooj vag valve, qhov cuam tshuam ntawm lub siab poob ntawm qhov cov raj xa dej yuav tsum tau ua tib zoo txiav txim siab thaum xaiv npauj npaim valve, thiab lub zog ntawm npauj npaim phaj cov raj xa dej. nruab nrab lub siab thaum kaw yuav tsum txiav txim siab. Tsis tas li ntawd, kev ua hauj lwm qhov kev txwv tsis pub tsawg ntawm cov khoom siv zawv zawg zog ntawm qhov kub siab yuav tsum txiav txim siab.
Tus qauv ntev thiab qhov siab tag nrho ntawm npauj npaim valve yog me me, qhov qhib thiab kaw nrawm nrawm nrawm, thiab nws muaj cov dej tswj tau zoo. Tus qauv txheej txheem ntawm npauj npaim valve yog qhov zoo tshaj plaws rau kev ua rau lub taub loj valve. Thaum tus npauj npaim valve qhov yuav tsum tau siv rau kev tswj ntws, qhov tseem ceeb tshaj plaws yog kom xaiv qhov loj thiab hom ntawm npauj npaim valve, kom nws tuaj yeem ua haujlwm tau zoo thiab ua haujlwm tau zoo.
Feem ntau, hauv kev kaw, tswj kev tswj hwm thiab av nkos nruab nrab, tus qauv luv luv, qhib ceev thiab kaw nrawm nrawm thiab lub siab txiav tawm (lub siab me me sib txawv) yog qhov yuav tsum tau ua, thiab npauj npaim valve pom zoo. Npauj npaim valve tuaj yeem siv rau hauv ob txoj hauj lwm hloov kho, txo cov kab channel, lub suab qis, cavitation thiab vaporization tshwm sim, paug me me rau cov cua thiab qhov nruab nrab tsis zoo. Kev ua kom qhov kev tso tawm nyob rau hauv kev ua haujlwm tshwj xeeb, lossis kev sib khi nruj, hnav hnyav thiab tsis kub (cryogenic) kev ua haujlwm yuav tsum tau ua.
qauv
Nws yog tsuas yog tsim ntawm lub cev valve, lub pas nrig valve, npauj npaim phaj thiab lub nplhaib sib khi. Lub cev lub cev valve yog cylindrical nrog luv axial ntev thiab built-in npauj npaim phaj.
tus yam ntxwv
1. Npauj npaim valve muaj cov yam ntxwv ntawm cov qauv yooj yim, ntim me me, lub teeb yuag, kev siv khoom me me, kev teeb tsa me me, kev hloov ceev, 90 ° kev sib hloov, kev tsav tsheb me me, thiab lwm yam nws yog siv los txiav, txuas thiab kho qhov nruab nrab hauv qhov kav raj xa dej, thiab muaj cov dej tswj tau zoo thiab ua kom tsis muaj kev sib khi.
2. Lub npauj npaim valve tuaj yeem thauj cov av nkos thiab khaws cov kua qis dua ntawm cov yeeb nkab qhov ncauj. Raws li qhov siab nqig, kev sib khi zoo tuaj yeem ua tiav. Kev cai zoo kev tswj.
3. Kev tsim tus qauv ntawm npauj npaim phaj ua rau cov kua tsis kam ua me me, uas tuaj yeem piav qhia cov khoom txuag hluav taws xob.
4. Lub pas nrig valve muaj zoo corrosion tsis kam thiab tiv thaiv cov cuab yeej puas. Thaum lub npauj npaim valve qhib thiab kaw, lub pas nrig valve tsuas tig thiab tsis txav mus thiab nqis. Kev ntim ntawm tus pas nrig valve tsis yooj yim yuav puas thiab lub sealing yog kev ntseeg tau. Nws yog tsau nrog taper tus pin ntawm npauj npaim phaj, thiab qhov txuas txuas ntxiv yog tsim los tiv thaiv lub valve pas nrig tawg thaum lub qhov sib txuas ntawm lub pas nrig valve thiab lub npauj npaim phaj tawg tas li.
5. Muaj qhov txuas flange, txuas txuas, taub qab txuas txuas thiab lug txuas clamp.
Cov ntawv tsav tsheb suav nrog phau ntawv, cua iav tsav, hluav taws xob, pneumatic, hydraulic thiab hluav taws xob-hydraulic txuas sib txuas ua ke, tuaj yeem paub cov chaw taws teeb tswj thiab kev ua haujlwm tsis siv neeg.
Sijhawm Post: Dec-18-2020