Cov lus qhia rau kev txhim kho thiab tswj cov mos-sealed riam rooj vag li qub
Lub soft-sealedriam rooj vag valveyog lub valve uas siv lub foob ua los ntawm cov khoom siv elastic los tswj cov dej ntws los ntawm kev txav ntawm lub rooj vag. Nws yog tus cwj pwm los ntawm kev ua tau zoo sealing, me me qhib thiab kaw torque, thiab lub neej ua haujlwm ntev. Kab lus no yuav qhia txog kev xaiv cov khoom siv, kev saib xyuas cov lus pom zoo, cov kauj ruam ntawm kev teeb tsa thiab kev ceev faj ntawm cov mos-sealed riam rooj vag valve kom ntxaws.
I. Cov khoom xaiv ntawm cov mos-sealed riam rooj vag li qub
1.1 Valve lub cev khoom
Kev xaiv cov khoom siv lub cev valve yuav tsum coj mus rau hauv tus account qhov chaw ua haujlwm thiab cov yam ntxwv nruab nrab ntawm lub valve. Feem ntau siv cov ntaub ntawv xws li cam khwb cia hlau, hlau ductile, carbon steel, stainless hlau, thiab lwm yam. Rau corrosive media, nws yog pom zoo kom xaiv stainless hlau los yog yas-lined cov ntaub ntawv.
1.2 Sealing khoom
Cov ntaub ntawv mos mos feem ntau muaj xws li EPDM, NBR, PTFE, thiab lwm yam. EPDM yog tsim rau cov dej kub, chav thiab lwm yam xov xwm; NBR yog tsim rau roj thiab hydrocarbon media; PTFE muaj kev tiv thaiv corrosion zoo heev thiab ua haujlwm kub.
1.3 Valve qia khoom
Lub valve qia cov khoom yuav tsum muaj lub zog zoo thiab corrosion kuj. Cov khoom siv feem ntau muaj xws li stainless hlau thiab hlau alloy. Rau qhov kub thiab txias siab, nws raug nquahu kom xaiv cov hlau alloy.
II. Cov lus pom zoo ntawm kev kho rau cov mos-sealed riam rooj vag li qub
2.1 Kev tshuaj xyuas tsis tu ncua
Tsis tu ncua xyuas cov sealing kev ua tau zoo thiab qhib thiab kaw cov yam ntxwv ntawm cov li qub, thiab tswj txhua qhov txawv txav raws sijhawm. Ua tib zoo saib xyuas qhov hnav ntawm cov ntsaws ruaj ruaj thiab hloov lawv yog tias tsim nyog.
2.2 Ntxuav thiab lubrication
Tsis tu ncua ntxuav lub puab thiab sab nraud ntawm lub li qub kom huv si. Rau cov li qub uas nquag qhib thiab kaw, roj yuav tsum tau ntxiv tsis tu ncua kom txo kev sib txhuam thiab hnav.
2.3 Anti-corrosion kho
Rau cov li qub raug rau cov huab cua, kev tiv thaiv corrosion yuav tsum tau ua tsis tu ncua los tiv thaiv corrosion ntawm lub cev valve thiab qia valve. Cov kev ntsuas tiv thaiv corrosion feem ntau suav nrog kev siv tshuaj tiv thaiv xeb thiab electroplating.
III. Cov kauj ruam ntawm kev txhim kho thiab kev ceev faj rau cov mos-sealed riam rooj vag li qub
3.1 Installation cov kauj ruam
1). Kos lub valve: Ua ntej kev teeb tsa, xyuas seb lub valve qauv, qhov tshwj xeeb thiab kev ntsuas siab ua tau raws li cov qauv tsim. Paub meej tias lub valve sealing nto tsis puas.
2). Ntxuav lub raj xa dej: xyuas kom tsis muaj vuam slag, cov ntaub ntawv hlau thiab lwm cov khib nyiab hauv cov kav dej kom tsis txhob muaj kev puas tsuaj rau cov ntsaws ruaj ruaj.
3). Txhim kho lub valve: muab lub valve tso rau hauv lub raj xa dej, kho lub flange nrog bolts, thiab xyuam xim rau kev zawm cov bolts diagonally kom tsis txhob muaj zog tsis sib xws.
4). Kho lub valve: tom qab kev teeb tsa, qhib thiab kaw lub valve manually los xyuas kom meej qhib thiab kaw kom tsis txhob muaj teeb meem.
3.2 Kev ceev faj
- Directionality: Cov mos-sealed riam rooj vag valve muaj directionality. Thaum txhim kho, xyuam xim rau cov kev taw qhia ntawm qhov nruab nrab ntws raws li tus xub ntawm lub valve lub cev.
- Tiv thaiv kom dhau lub zog: Thaum qhib thiab kaw lub valve, tsis txhob siv lub zog ntau dhau los tiv thaiv kev puas tsuaj rau lub foob thiab lub valve qia.
- Tsis txhob kub siab: Tsis txhob txhim kho lub valve nyob rau hauv qhov kub thiab txias ib puag ncig tiv thaiv kev laus thiab deterioration ntawm lub foob.
- Kev ntsuas Antifreeze: Hauv qhov chaw txias, yuav tsum ntsuas kev tiv thaiv kom tsis txhob muaj lub valve los ntawm kev khov.
Raws li ib qho tseem ceeb ntawm kev tswj cov cuab yeej, cov khoom siv xaiv, kev saib xyuas thiab kev teeb tsa ntawm lub qhov rooj ntawm qhov rooj riam muag muagvalvencaj qha cuam tshuam rau kev ua haujlwm thiab lub neej ntawm lub valve. Los ntawm kev xaiv cov khoom tsim nyog, kev saib xyuas tsis tu ncua thiab kev txhim kho kom raug, kev siv kev ua haujlwm thiab lub neej ntawm cov mos-sealed riam rooj vag valve tuaj yeem txhim kho tau zoo. Kuv vam tias cov ntsiab lus ntawm tsab xov xwm no tuaj yeem muab cov ntaub ntawv siv tau zoo rau cov neeg siv.
Cov ntaub ntawv
1. GB / T 12232-2005 《General li qub - Phau ntawv hlau thiab tooj liab rooj vag li qub》
2. JB/T 5300-2005 《Valve model compilation method》
3. HG/T 20592-2009 steel yeeb nkab flange
4. API 6D-2007 《Pipeline li qub rau roj av thiab ntuj tsim kev lag luam》