Cov ntsiab lus tseem ceeb ntawm kev xaiv valve yog sau tseg

Cov ntsiab lus tseem ceeb ntawm kev xaiv valve yog sau tseg

Feem ntau ntawm cov xov xwm hauv cov khoom siv tshuaj lom neeg muaj cov yam ntxwv ntawm cov tshuaj lom neeg, combustible, tawg thiab corrosive. Cov kev ua haujlwm yog qhov nyuaj thiab hnyav, thiab kev khiav hauj lwm kub thiab siab yog siab. Thaum lub valve tsis ua hauj lwm, lub teeb yuav ua rau nruab nrab to, qhov hnyav yuav ua rau lub tshuab kaw, thiab tseem ua rau muaj kev sib tsoo tsis zoo. Yog li ntawd, kev xaiv kev tshawb fawb thiab tsim nyog ntawm lub valve tuaj yeem tsis tsuas yog txo cov nqi tsim kho ntawm cov cuab yeej, tab sis kuj ua kom muaj kev nyab xeeb ntawm kev tsim khoom. Wb tham txogvalve xaiv!
Feem ntau ntawm cov xov xwm hauv cov khoom siv tshuaj lom neeg muaj cov yam ntxwv ntawm cov tshuaj lom neeg, combustible, tawg thiab corrosive. Cov kev ua haujlwm yog qhov nyuaj thiab hnyav, thiab kev khiav hauj lwm kub thiab siab yog siab. Thaum lub valve tsis ua hauj lwm, lub teeb yuav ua rau nruab nrab to, qhov hnyav yuav ua rau lub tshuab kaw, thiab tseem ua rau muaj kev sib tsoo tsis zoo. Yog li ntawd, kev xaiv kev tshawb fawb thiab tsim nyog ntawm lub valve tuaj yeem tsis tsuas yog txo cov nqi tsim kho ntawm cov cuab yeej, tab sis kuj ua kom muaj kev nyab xeeb ntawm kev tsim khoom. Wb tham txog kev xaiv valve!
Cov ntsiab lus tseem ceeb ntawm kev xaiv valve
1 Clear valve nyob rau hauv cov khoom siv los yog cov cuab yeej siv
Txiav txim siab qhov kev ua haujlwm ntawm lub valve: qhov xwm txheej ntawm qhov nruab nrab, kev ua haujlwm siab, kev ua haujlwm kub thiab kev ua haujlwm tswj hom.
Xaiv hom valve zoo
Kev xaiv kom raug ntawm hom valve yog raws li tus tsim qauv ntawm tag nrho cov txheej txheem tsim khoom, kev nkag siab tag nrho ntawm kev ua haujlwm raws li qhov yuav tsum tau ua ua ntej, hauv kev xaiv hom valve, tus tsim qauv yuav tsum xub paub cov yam ntxwv thiab kev ua haujlwm ntawm txhua lub valve.
Txiav txim siab qhov kawg txuas ntawm lub valve
Nyob rau hauv threaded kev twb kev txuas, flange kev twb kev txuas, welding kawg kev twb kev txuas, thawj ob hom ntawm ntau. Threaded li qub feem ntau yog li qub nrog nominal txoj kab uas hla hauv qab 50mm. Yog tias txoj kab uas hla loj dhau lawm, kev teeb tsa thiab kev sib khi ntawm kev sib txuas yog qhov nyuaj heev.
Flanged li qub yog yooj yim dua rau nruab thiab tshem tawm, tab sis lawv yog cov bulkier thiab kim dua li cov threaded li qub, yog li lawv tsim nyog rau cov yeeb nkab sib txuas ntawm ntau qhov ntau thiab tsawg thiab siab.
Qhov kev sib txuas welded yog txhim khu kev qha ntau dua li kev sib txuas flanged, uas yog tsim rau kev thauj khoom. Tab sis lub welded valve disassembly thiab reinstallation yog nyuaj dua, yog li nws siv feem ntau nyob rau hauv lub sij hawm ntev txhim khu kev qha lag luam, los yog siv tej yam kev mob ntawm loading, siab kub zaus.
4. Kev xaiv cov khoom siv valve
Kev xaiv ntawm lub plhaub lub plhaub, cov khoom siv sab hauv thiab cov khoom siv sib khi, ntxiv rau kev txiav txim siab lub cev lub cev ntawm kev ua haujlwm nruab nrab (kub, siab) thiab cov khoom siv tshuaj lom neeg (corrosion), yuav tsum tau ua kom tiav qib ntawm kev huv huv (nrog lossis tsis muaj cov khoom siv. ), Tsis tas li ntawd, tab sis kuj tseem xa mus rau cov kev cai ntawm lub xeev thiab kev siv cov tuam tsev.
Kev xaiv raug thiab tsim nyog ntawm cov khoom siv valve tuaj yeem tau txais kev pabcuam nyiaj txiag zoo tshaj plaws thiab kev ua haujlwm zoo ntawm lub valve. Valve lub cev cov khoom xaiv kev txiav txim: cam khwb cia hlau - carbon steel - stainless hlau, sealing nplhaib khoom xaiv kev txiav txim: roj hmab - tooj liab - hlau alloy -F4.
Tsib lwm
Ntxiv rau, KEV NOJ QAB HAUS HUV THIAB TSEV KAWM NTAWV ntawm cov kua dej ntws los ntawm lub VALVE yuav tsum tau txiav txim siab, THIAB lub valve tsim nyog yuav tsum tau xaiv siv cov ntaub ntawv muaj (xws li, valve khoom catalog, valve khoom qauv, thiab lwm yam).
Kev piav qhia ntawm hom valve hom xaiv
Specification ntawm rooj vag valve hom xaiv
Feem ntau, qhov tseem ceeb yuav tsum tau muab rau cov rooj vag li qub. Lub rooj vag valve ntxiv rau qhov tsim nyog rau chav, roj thiab lwm yam xov xwm, tab sis kuj tseem siv tau rau cov khoom siv granular thiab viscosity ntawm qhov nruab nrab, thiab tsim nyog rau qhov cua thiab lub tshuab nqus tsev qis. Rau qhov nruab nrab nrog cov khoom siv, lub rooj vag valve lub cev yuav tsum tau muab nrog ib lossis ob qhov kev tshem tawm. Rau qhov nruab nrab kub qis, qhov kub ntawm qhov rooj valve yuav tsum tau xaiv.
2. Kev piav qhia ntawm kev txiav tawm valve xaiv
Globe valve yog tsim rau cov dej tsis haum rau cov raj xa dej, uas yog, qhov poob siab tsis raug txiav txim siab, thiab kub siab, siab siab nruab nrab cov kav dej lossis cov cuab yeej siv, tsim rau DN Lub valve me tuaj yeem xaiv lub ntiaj teb valve, xws li rab koob valve, ntsuas valve, sampling valve, siab ntsuas valve, thiab lwm yam.;
Lub ntiaj teb valve muaj cov kev cai ntws los yog kev tswj xyuas lub siab, tab sis qhov kev hloov kho qhov tseeb tsis yog siab, thiab cov yeeb nkab txoj kab uas hla yog me me, nws tsim nyog xaiv lub ntiaj teb valve lossis throttle valve;
Rau qhov nruab nrab muaj kuab lom heev, nws yog qhov tsim nyog los xaiv lub tshuab raj kaw lub ntiaj teb valve; Tab sis lub ntiaj teb valve yuav tsum tsis txhob siv rau nruab nrab nrog cov viscosity loj thiab nruab nrab uas muaj cov khoom yooj yim rau precipitate, thiab yuav tsum tsis txhob siv los ua lub qhov cua valve thiab lub valve ntawm lub tshuab nqus tsev qis.
3. Specification ntawm pob valve xaiv
Pob valve yog tsim rau qhov kub thiab txias, siab siab, viscosity nruab nrab. Feem ntau cov pob li qub tuaj yeem siv rau hauv nruab nrab nrog cov khoom raug tshem tawm, raws li cov khoom siv sealing yuav tsum tau siv rau hauv cov hmoov thiab granular media;
Tag nrho-channel pob valve tsis haum rau kev khiav dej num, tab sis tsim nyog rau lub sijhawm qhib thiab kaw nrawm, yooj yim kom ua tiav qhov xwm txheej ceev; Feem ntau nyob rau hauv nruj sealing kev ua tau zoo, hnav, shrinkage channel, ceev qhib thiab kaw qhov kev txiav txim siab, kev kub siab (qhov sib txawv loj), tsis tshua muaj suab nrov, gasification tshwm sim, me me kev khiav hauj lwm torque, dej tsis kam, kev siv lub pob li qub yog pom zoo.
Pob valve yog tsim rau lub teeb qauv, tsis tshua muaj siab txiav tawm, corrosive media; Pob valve los yog qhov kub thiab txias, qhov nruab nrab cryogenic ntawm lub zoo tagnrho valve, tsis tshua muaj kub nruab nrab piping system thiab ntaus ntawv, yuav tsum tau xaiv nrog ib tug tsawg kub pob valve cover;
Lub pob valve lub rooj zaum cov khoom siv yuav tsum tau ua haujlwm ntawm lub pob thiab qhov nruab nrab ua haujlwm, qhov loj caliber pob valve hauv kev ua haujlwm yuav tsum muaj zog ntau dua, DN≥
200mm pob valve yuav tsum xaiv worm iav kis daim ntawv; Lub pob valve ruaj khov yog tsim rau txoj kab uas hla loj dua thiab lub sijhawm siab siab; Tsis tas li ntawd, lub pob valve siv rau cov txheej txheem ntawm cov khoom siv tshuaj lom neeg, cov khoom siv hluav taws xob combustible, yuav tsum muaj hluav taws kub, tiv thaiv zoo li qub.
4. Kev piav qhia ntawm kev xaiv valve throttle
Throttle valve yog tsim rau qhov nruab nrab ntawm qhov kub thiab txias, lub sijhawm siab, haum rau qhov yuav tsum tau kho qhov ntws thiab qhov siab, tsis yog rau cov viscosity thiab muaj cov khoom nruab nrab, yuav tsum tsis txhob siv los ua lub pob valve.
Kev piav qhia ntawm plug valve hom xaiv
Plug valve yog tsim rau ceev ceev qhib thiab kaw lub sij hawm, feem ntau tsis haum rau chav thiab kub nruab nrab, rau qhov kub thiab txias, siab viscosity nruab nrab, kuj haum rau nruab nrab nrog tshem tawm hais.
Kev piav qhia ntawm npauj npaim valve hom xaiv
Npauj npaim valve yog tsim rau txoj kab uas hla loj (xws li DN> 600mm) thiab luv qauv ntev yuav tsum tau, thiab xav tau kev khiav dej num thiab ceev ceev qhib thiab kaw, feem ntau yog siv rau kub ≤
80 ℃, siab ≤1.0MPa dej, roj thiab compressed cua thiab lwm yam xov xwm; Vim yog npauj npaim valve txheeb ze rau lub rooj vag valve, lub pob valve siab poob yog qhov loj, yog li npauj npaim valve yog tsim rau lub siab poob qhov yuav tsum tsis nruj rau hauv cov kav dej.
Kev piav qhia ntawm kev xaiv lub pob valve
Kos lub valve feem ntau haum rau cov xov xwm huv, yuav tsum tsis txhob siv rau hauv qhov nruab nrab uas muaj cov khoom siv thiab cov viscosity loj. Thaum ≤40mm, nws raug nquahu kom siv lub tshuab nqa nqa (* tso cai rau nruab rau ntawm kab rov tav raj); Thaum DN = 50 ~ 400mm, nws yog qhov tsim nyog los siv lub viav vias hom nqa daim tshev valve (hauv kab rov tav thiab ntsug tuaj yeem ntsia tau, xws li ntsia tau rau hauv cov kav dej ntsug, nruab nrab ntws los ntawm hauv qab mus);
Thaum DN≥450mm, yuav tsum tsis txhob siv hom kos valve; Thaum DN = 100 ~ 400mm kuj tuaj yeem xaiv lub clamp hom kos valve; Lub viav vias kos valve tuaj yeem ua los ntawm kev ua haujlwm siab heev, PN tuaj yeem ncav cuag 42MPa, raws li lub plhaub thiab cov khoom foob tuaj yeem siv rau txhua qhov chaw ua haujlwm nruab nrab thiab txhua qhov kev ua haujlwm kub.
Qhov nruab nrab yog dej, chav, roj, corrosive nruab nrab, roj, tshuaj, thiab lwm yam. Qhov kev ua haujlwm kub ntawm qhov nruab nrab yog nruab nrab ntawm -196 ℃ thiab 800 ℃.
Kev piav qhia ntawm diaphragm valve xaiv
Diaphragm valve yog tsim rau kev ua haujlwm kub tsawg dua 200 ℃, siab tsawg dua 1.0MPa roj, dej, acid nruab nrab thiab nruab nrab uas muaj cov teeb meem tshem tawm, tsis haum rau cov kuab tshuaj organic thiab muaj zog oxidant nruab nrab;
Abrasive granular nruab nrab yuav tsum xaiv weir diaphragm valve, xaiv weir diaphragm valve kom xa mus rau nws cov yam ntxwv ntws cov lus; Cov kua nplaum nplaum, cov cement slurry thiab precipitating nruab nrab yuav tsum tau xaiv ncaj nraim los ntawm diaphragm valve; Tshwj tsis yog tias tau teev tseg, lub diaphragm valve yuav tsum tsis txhob siv rau ntawm lub tshuab nqus tsev thiab cov khoom siv lub tshuab nqus tsev.