Xaiv Npauj Npaim Valridding Valve Khoom
Qhov kev xaiv ntawm cov khoom tseem ceeb rau npauj npaim valve yuav tsum txiav txim siab ntawm cov yam ntxwv nruab nrab, xws li muaj cov khoom siv, thiab theem ob ntws, thiab lwm yam). Feem ntau, cov neeg siv qhia qhov yuav tsum muaj rau cov khoom siv valve, tshwj xeeb tshaj yog rau cov khoom siv tshwj xeeb lossis kev ua haujlwm hnyav. Feem ntau, cov khoom siv valve yog sib xws nrog lossis me ntsis zoo dua rau cov raj xa dej.
Rau cov li qub, qhov ntsuas tau kub tau muab xa mus rau hauv ENSI B16.34 tus qauv. Carbon Steel, raws li ib qho ntau yam thiab nyiaj txiag, tuaj yeem tiv taus kub txog li 425 degree. Ib qho ntxiv, cam khwb cia hlau thiab Nodular cas hlau yog dav siv nyob rau hauv qis-siab li qub. Rau cov dej hiav txwv-tiv thaiv li qub, kev xaiv yuav tsum yog raws cov kev txiav txim siab ntawm kev ua haujlwm thiab qhov tseem ceeb.
Tshwj xeeb, cov hau kev hauv qab no tuaj yeem saws:
- Siv cov titanium alloy, uas tau zoo heev corrosion tsis kam thiab lub teeb.
- Xaiv cov hlau stainless hlau, uas muaj lub zog zoo thiab corrosion tsis kam.
- Siv cov roj hmab li tab los yog polystetrafluoroethylene (PTFE) los txhim kho lub valve corrosion tsis kam.
- Thov epoxy lossis tej hub txheej txheem los muab cov txheej tiv thaiv ntxiv.
- Xaiv cov qes-npib pov cov hlau los yog tsawg-alloy cam khwb cia hlau, uas ua ua kom ruaj khov nyob rau hauv cov kev ua haujlwm tshwj xeeb.
Hauv kev siv cov kev siv, ua ke ntawm cov ntaub ntawv saum toj no yog qee zaum siv los ua kom tau raws li cov kev ua haujlwm nruj. Piv txwv li, ntawm cov nkoj, titanium alloy yog qhov kev xaiv zoo tshaj plaws vim tias cov nroj tsuag muaj zog thiab cov nroj tsuag tsis zoo lossis cov txheej txheem ntau dua.
Pa Thaum Tshav Kub Kub Pos Thaj Tsam Xam yog cov thev naus laus zis hauv kev lag luam tshuaj. Nyob rau tib lub sijhawm, peb kuj yuav tsum to taub cov kev paub tshuaj lom neeg, hom thiab cov lej ntawm kev ruaj ntseg valve hnyav, thiab xaiv cov gaskets. Hauv cov raj xa hluav taws xob engineering, faus iav - siv cov khoom siv cua sov kev tsim kho, cov raj xa hluav taws xob tsis zoo, thiab kev khiav tawm tsam yog txhua yam tseem ceeb. Tsis tas li ntawd, cov ntaub ntawv xaiv thiab cov khoom siv, cov pa hluav taws xob-thiab-cov pa hluav taws xob ua qauv, thiab cov qauv kev teeb tsa rau cov kav dej sib txawv
Hauv kev xaiv valve, peb yuav tsum nkag siab cov hom thiab cov qauv ntawm lub ntiaj teb li qub, siab xa cov yeeb nkab faib, thiab xaiv cov yeeb nkab flanges. Nyob rau tib lub sijhawm, kev suav ntawm cov kua noj thiab condensate tshem tawm cov kab mob kub, thiab cov kab ke kub ntawm cov kab ke tsis tseem ceeb. Thaum kawg, peb kuj yuav tsum tau cov txuj ci siab heev xws li cov khoom siv hluav taws xob muab cov kev nthuav dav, thiab cov hau kev yooj yim ntawm cov qauv ua haujlwm, thiab kev ua haujlwm rau laij cov roj nrawm thiab mach tus lej. Los ntawm kev paub cov kev paub no, peb tuaj yeem ua tau zoo dua ua kom muaj kev tshav kub ua kom muaj cov khoom siv hluav taws xob ntau thiab lwm cov raj xa hluav taws xob ua haujlwm thiab kev ua haujlwm.
Cov Ntsiab Lus Tseem Ceeb Rau Kev Xaiv Hluav Taws Xob Thiab Cov Khoom Xaiv
Hauv kev lag luam tshuaj, xa xov hluav taws xob txaus, khiav nrog cov qauv ntws ntws tau yooj yim uas cuam tshuam nrog kev nyab xeeb thiab kev ua haujlwm ntawm cov raj xa dej. Ua raws li cov qauv xws li cov qauv tsim qauv rau kev lag luam petrochemical, ASME B31.3, thiab GB / T 20801 yog qhov tseem ceeb rau kev nyab xeeb thiab kev ua kom zoo ntawm cov raj xa hluav taws xob engineering. Ib qho ntxiv, cov qauv khoom siv valve thiab cov ntsiab lus ntawm kev siab xa cov qauv ntsuas hluav taws xob uas yog tsis tseem ceeb.
Hauv kev tsim qauv thiab cov txheej txheem kev tsim qauv, peb yuav tsum muaj kev nkag siab tob thiab kev xaiv ntawm cov nplaim hluav taws, thiab kev suav cov nplaim taws thiab kev muab cov disupurence discs. Nyob rau tib lub sijhawm, peb yuav tsum paub txog cov qauv siv thiab tshwj xeeb rau cov raj xa khoom, thiab cov kev xaiv ntawm cov neeg xa khoom siab, thiab siv cov tshuaj lom neeg, thiab cov tshuaj ntsiav kom siab gauges.
Tsis tas li ntawd, cov khoom xaiv rau ammonia dej thiab kua ammonia cov raj tshuaj, thiab cov khoom tshwj xeeb rau cov chaw muaj phom sij, thiab cov chaw tshwj xeeb yog txhua yam uas tsis tuaj yeem tsis quav ntsej. Hais txog cov ntaub ntawv, peb yuav tsum nkag siab cov kev ua tau zoo thiab cov yam ntxwv ntawm ntau cov raj xa dej los ua cov kev xaiv tsim nyog raws li kev xav tau.
Ib qho ntxiv, peb yuav tsum nkag mus rau lub pip thiab tom qab weld cov qauv kev nyab xeeb rau cov khoom siv tshwj xeeb (TSG) thiab cov cuab yeej tshwj xeeb. Hauv kev tsim tshwj xeeb thiab kev tsim kho, peb kuj yuav tsum tau them sai sai rau kev txiav txim siab ntawm cov khoom tsim kev tsim kho thiab kev ntsuas, thiab kev teeb tsa thiab xaiv cov raj xa dej txhawb nqa.
Zuag qhia tag nrho, los ntawm kev nkag siab tob thiab paub cov ntsiab lus tseem ceeb no, peb tuaj yeem ua kom zoo dua qub tsim thiab ua kom muaj kev nyab xeeb thiab ua tau zoo ntawm txoj haujlwm. Cov qauv xws li HG 20615 thiab HG 20623 rau cov yeeb nkab flanges, cov kev xaiv ntawm cov roj ntsha tshuab hluav taws xob, thiab kev xaiv ntawm HG / T 20592 FliS Hom yog txhua yam tsis tseem ceeb hauv Kev Siv Tshuaj Hluav Taws Xob Cov Hluav Taws Xob thiab Kev Tsim Kho. Nyob rau tib lub sijhawm, cov xim yuav tsum them rau cov kev cai ntawm cov tshuab hluav taws xob, kev xaiv hluav taws xob ntawm GC1, cov txiaj ntsig kev tsim nyog, kev ntsuas tsim nyog ntawm cov twj tso kua mis thiab NPSHA. Tsis tas li ntawd, nkag siab cov yam ntxwv ntawm Q345 cov ntaub ntawv, kev sab laj ntawm cov qauv tshuaj lom neeg cov qauv 2022, thiab kev sib tham ntawm kev nyab xeeb thiab zoo ntawm cov xa hluav taws xob engineering.