Npauj npaim valveyog ib hom valve uas siv lub disc qhib thiab kaw ib feem rau reciprocate txog 90 ° qhib, kaw los yog kho tus nqi ntws ntawm nruab nrab. Npauj npaim valve tsis tsuas yog muaj cov qauv yooj yim, me me, lub teeb yuag, tsis siv cov khoom siv, me me installation loj, me me tsav torque, yooj yim thiab ceev khiav lag luam, tab sis kuj muaj cov dej ntws zoo tswj kev ua haujlwm thiab kaw sealing yam ntxwv, thiab yog ib qho kev loj hlob sai. valve ntau yam hauv kaum xyoo dhau los. Npauj npaim li qub tau siv dav. Qhov ntau thiab ntau ntawm nws cov kev siv txuas ntxiv nthuav dav, thiab txhim kho mus rau qhov kub thiab txias, kev kub siab, txoj kab uas hla loj, nruj nruj, lub neej ntev, cov yam ntxwv zoo heev, thiab kev ua haujlwm ntau ntawm ib lub valve. Nws txoj 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 raunpauj npaim li qub, kev ua haujlwm ntawmnpauj npaim li qubtau txhim kho. Vim tias cov roj hmab hluavtaws muaj cov yam ntxwv ntawm kev tiv thaiv corrosion, yaig tsis kam, qhov ruaj khov, zoo resilience, yooj yim tsim, tsis tshua muaj nqi, thiab lwm yam., hluavtaws roj hmab nrog cov khoom sib txawv tuaj yeem xaiv raws li kev siv sib txawv kom tau raws li kev ua haujlwm ntawmnpauj npaim li qub.
Vim hais tias polytetrafluoroethylene (PTFE) muaj zog corrosion kuj, ruaj khov kev ua tau zoo, tsis yooj yim rau lub hnub nyoog, tsis tshua muaj coefficient ntawm kev sib txhuam, yooj yim rau daim ntawv, seem stability, thiab muaj peev xwm txhim kho nws cov khoom siv los ntawm kev sau thiab ntxiv cov ntaub ntawv tsim nyog, npauj npaim valve sealing khoom nrog zoo dua. Lub zog thiab qis kev sib txhuam coefficient tuaj yeem tau txais, thiab cov kev txwv ntawm cov roj hmab hluavtaws tau kov yeej, yog li cov khoom siv polymeric sawv cev los ntawm PTFE thiab nws cov khoom hloov pauv tau siv dav hauv npauj npaim valve, kom ua tau zoo ntawm npauj npaim valve tau ua tiav. txhim kho ntxiv.Npauj npaim li qubnrog rau qhov dav ntawm qhov kub thiab txias, kev ruaj ntseg sealing kev ua tau zoo thiab kev pab lub neej ntev tau raug tsim.
Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj ntawm cov ntawv thov kev lag luam xws li kub thiab qis, muaj zog yaig, thiab lub neej ntev, hlau foob npauj npaim li qub tau tsim kho zoo heev. Nrog rau daim ntawv thov ntawm kub tsis kam, tsis kub tsis kam, muaj zog corrosion kuj, muaj zog yaig kuj, thiab high-zog alloy cov ntaub ntawv nyob rau hauv npauj npaim li qub, hlau kaw npauj npaim li qub tau lug siv nyob rau hauv industrial teb xws li kub thiab tsis kub, muaj zog yaig. , thiab lub neej ntev, thiab npauj npaim li qub nrog txoj kab uas hla loj (9 ~ 750mm), siab siab (42.0MPa) thiab qhov kub ntawm qhov dav (-196 ~ 606 ° C) tau tshwm sim, yog li ntawd cov cuab yeej ntawm npauj npaim li qub tau mus txog qib tshiab. .
Thaum lub npauj npaim valve qhib tag nrho, nws muaj qhov ua haujlwm me me. Thaum qhib qhov nruab nrab ntawm 15 ° ~ 70 °, nws tuaj yeem siv rau kev tswj cov dej ntws, yog li daim ntawv thov ntawm npauj npaim valve muaj ntau heev nyob rau hauv qhov kev hloov loj-inch.
Vim yog qhov wipeable tsab ntawv tsa suab ntawm npauj npaim valve npauj npaim phaj, feem ntau npauj npaim li qub tuaj yeem siv rau kev tshaj tawm nrog cov khib nyiab tshem tawm. Nyob ntawm lub zog ntawm lub foob, nws kuj tuaj yeem siv rau cov hmoov thiab granular media.
Npauj npaim li qub yog tsim rau kev khiav dej num. Vim tias qhov poob siab ntawm npauj npaim valve hauv cov yeeb nkab yog qhov loj, kwv yees li peb zaug ntawm lub rooj vag valve, thaum xaiv lub npauj npaim valve, qhov cuam tshuam ntawm lub siab poob ntawm lub raj xa dej yuav tsum tau txiav txim siab tag nrho, thiab lub zog ntawm lub valve. npauj npaim phaj kom dais lub siab ntawm cov kav dej nruab nrab thaum nws raug kaw yuav tsum tau txiav txim siab. Tsis tas li ntawd, cov kev txwv ntawm kev khiav hauj lwm kub uas cov khoom siv elastomeric tuaj yeem raug rau ntawm qhov kub thiab txias yuav tsum tau muab rau hauv tus account.
Npauj npaim valve muaj qhov ntev me me thiab qhov siab tag nrho, qhib thiab kaw nrawm, thiab cov yam ntxwv tswj cov dej zoo. Lub hauv paus ntsiab lus ntawm cov npauj npaim li qub yog qhov tsim nyog tshaj plaws rau kev ua cov bore loj. Thaum npauj npaim valve yuav tsum tau siv los tswj tus nqi ntws, nws yog ib qho tseem ceeb uas yuav tsum xaiv qhov loj thiab hom npauj npaim valve kom nws tuaj yeem ua haujlwm tau zoo thiab zoo.
Feem ntau, nyob rau hauv lub throttling, kev tswj kev tswj thiab av nkos nruab nrab, cov qauv ntev yog luv, qhov qhib thiab kaw ceev ceev, thiab lub siab tsis tshua muaj kev txiav-tawm (me me siab sib txawv) yuav tsum tau, thiab npauj npaim valve yog pom zoo. Npauj npaim li qub tuaj yeem siv tau thaum muaj ob txoj haujlwm hloov kho, txo txoj kab uas hla, tsis tshua muaj suab nrov, cavitation thiab vaporization, me me ntawm cov pa tawm mus rau hauv qhov chaw, thiab cov xov xwm abrasive. Nyob rau hauv cov kev ua haujlwm tshwj xeeb, kev hloov kho throttling, lossis kev sib khi nruj, hnav hnyav, kub tsis tshua muaj (cryogenic) thiab lwm yam kev ua haujlwm.
Post lub sij hawm: Nov-02-2024
