Tsib daim ntawv thov teb thiab qhov zoo ntawm faus pob valve cov lus qhia rau pob valve

Tsib daim ntawv thov teb thiab qhov zoo ntawm faus pob valve cov lus qhia rau pob valve Tag nrho cov hluav taws xob vuam pob valve rau ntau yam khoom siv tshuab: ntau yam txheej txheem kev kho cua sov, ntau yam kev lag luam ntawm cov roj liquefied thiab cov kav dej cua sov. faus pob valve ob lub ntsaws thiab tso tawm siv lub caij nplooj ntoos hlav torque fluctuation lub rooj, tsis hais lub valve nyob rau hauv lub qhib los yog kaw lub xeev, lub sab sauv, nruab nrab thiab downstream sab lub rooj ua kua barrier, roj txoj kev phaj nyob rau hauv kab noj hniav tuav raws li cov paug valve. metabolism. Lub siab tsis siv neeg lub siab nyem ntawm faus pob valve tuaj yeem ua rau qhov kub thiab txias ntawm lub raum tube tuav cov khoom nce siab thiab ua rau lub siab hloov pauv, tsis tas yuav tsum tau cia siab rau lub valve, thiab lub rooj zaum ua haujlwm tuaj yeem ua rau siab tsis siv neeg siab, uas yuav xyuas kom muaj kev ruaj ntseg ntawm lub valve hauv kev thauj mus los ntawm cov khoom ua kua yog qhov tseem ceeb heev. 1, tag nrho hluav taws xob vuam pob valve rau lub nroog gas: liquefied gas export pipeline, txoj kev loj thiab txhua ceg hauj lwm mov pipeline, thiab lwm yam. 2, central cua sov: loj thiab nruab nrab-sized cua sov khoom export pipeline, txoj kev loj, sab hauj lwm. 3, tag nrho hluav taws xob vuam pob valve rau cov khoom siv hluav taws xob: cov yeeb nkab thiab lub voj tswj kev qhib thiab kaw. 4, smelter: txhua yam ntawm cov kav dej ua kua, cov pa roj av xaiv cov kav dej, cov roj liquefied thiab cov kav dej cua sov, cov kav dej xa hluav taws xob. 5, tag nrho hluav taws xob vuam pob valve rau ntau yam khoom siv kho tshuab: ntau yam txheej txheem kev kho cua sov, ntau yam kev lag luam tsim cov roj liquefied thiab cov kav dej cua sov. faus pob valve ob lub ntsaws thiab tso tawm siv lub caij nplooj ntoos hlav torque fluctuation lub rooj, tsis hais lub valve nyob rau hauv lub qhib los yog kaw lub xeev, lub sab sauv, nruab nrab thiab downstream sab lub rooj ua kua barrier, roj txoj kev phaj nyob rau hauv kab noj hniav tuav raws li cov paug valve. metabolism. Lub siab tsis siv neeg lub siab nyem ntawm faus pob valve tuaj yeem ua rau qhov kub thiab txias ntawm lub raum tube tuav cov khoom nce siab thiab ua rau lub siab hloov pauv, tsis tas yuav tsum tau cia siab rau lub valve, thiab lub rooj zaum ua haujlwm tuaj yeem ua rau siab tsis siv neeg siab, uas yuav xyuas kom muaj kev ruaj ntseg ntawm lub valve hauv kev thauj mus los ntawm cov khoom ua kua yog qhov tseem ceeb heev. Qhov zoo ntawm faus pob valve 1, sealing thaum muaj xwm ceev roj cawm: vim hais tias ntawm cov khoom qias neeg hauv cov khoom siv los yog hluav taws kub sib tsoo ua rau qhov kev xav tsis zoo ntawm lub rooj zaum valve, cov roj valve coj kev sib txuas nrog cov roj txhaj tshuaj, lub twj tso kua mis tuaj yeem txuag lub sijhawm thiab kev siv zog los txhaj cov roj sealing rau hauv lub rooj zaum sealing txoj hauj lwm, txo cov to. 2. Txhim khu kev ruaj ntseg valve qia sealing thiab siab ua haujlwm torque: ntxiv rau cov txheej txheem sealing nplhaib, O-nplhaib ntxiv rau ntawm lub hau ntsaws ntsaws ntsaws ruaj ruaj, ob txoj kev sealing kom ruaj khov ntawm valve qia sealing; Qhov sib ntxiv ntawm high purity graphite packing thiab sealing grease ua rau qia to tom qab hluav taws kub tsawg heev. Qws dov bearings thiab thrust bearings ua rau lub valve yooj yim rau kev khiav lag luam. 3. Tag nrho cov yeeb nkab txoj kab uas hla los yog txo txoj kab uas hla: Tag nrho cov yeeb nkab txoj kab uas hla los yog txo txoj kab uas hla yuav siv tau raws li qhov tseeb qhov teeb meem. Tag nrho txoj kab uas hla ntawm qhov puv-inch valve yog zoo ib yam nrog lub nominal txoj kab uas hla ntawm lub raj xa dej, uas yog conducive rau pipeline tu. 4, lub valve qia tuaj yeem txuas ntxiv: raws li qhov xav tau ntawm kev sib dhos lossis kev ua haujlwm, lub qia valve tuaj yeem txuas ntxiv. Extended pas nrig pob valve, tshwj xeeb tshaj yog tsim rau cov pa hauv nroog thiab lwm qhov chaw uas yuav tsum tau muab faus ncaj qha paved pipelines. Extension valve qia specifications raws li tus neeg yuav tsum tau muaj. 5. Yooj yim rau kev khiav lag luam: lub rooj zaum valve thiab qia dov bearing nrog kev sib txhuam me me thiab kev ua haujlwm zoo ntawm tus kheej yog xaiv los txo cov kev khiav hauj lwm lub zog ntawm lub valve. Yog li ntawd, faus pob li qub tuaj yeem ua haujlwm yooj yim rau lub valve rau lub sijhawm ntev txawm tias lawv tsis muab lubrication sealing. Kev tuav tswj valve nrog rocker lossis iav, hluav taws xob lossis pneumatic pob valve uas tau tsav los ntawm cov khoom siv hluav taws xob lossis cov khoom siv pneumatic, ua kom lub pob tig 90. Qhib lossis kaw lub valve. Tes-ua pob valve qia yog kos rau saum. Concave zawj azimuth thiab qhov ntev ntawm cov spinner thiab cov kev taw qhia ntawm cov ntws channel yog qhib, thiab ntsug kev taw qhia ntawm cov khoom ntws yog kaw. Lub sij hawm ntev cia lub valve yuav tsum tsis tu ncua, *** pov tseg. Yuav tsum tau them sai sai rau kev ntxuav ntawm qhov chaw, tiv thaiv kev puas tsuaj ntawm qhov chaw. Ua ntej kev tsim kho los xyuas lub valve channel thiab nto, yog tias muaj stains, yuav tsum xaiv cov ntaub so huv. Kauj Ruam 1: Qeb Cov lus qhia no suav nrog nominal txoj kab uas hla DN15mm ~ 500mm (1/2 "~ 20"), nominal txoj kab uas hla PN1.6MPa ~ 10MPa (ANSI> 2. Main siv 2.1 Tus yuam sij yog siv los qhib lossis kaw cov kav dej thiab tshuab. 2.2 Siv cov khoom siv valve raws li cov khoom siv 2.2.1 Carbon steel valve tuaj yeem siv dej, chav dej, diesel thiab lwm yam khoom siv 2.2.2 Stainless hlau phaj li qub yog tsim rau cov khoom siv corrosive 2.3 Qhov kub ntawm lub rooj zaum 130 ℃ PTFE iav fiber ntau ≤160 ℃ PPL (admixture polystyrene) ≤ 300 ℃ Kauj Ruam 3: Cov qauv 3.1 Pob valve qauv nta tau qhia hauv daim duab 1 3.2 Cov khoom siv ntim khoom siv sealing gaskets, ntim PTFE lossis graphite hloov tau, txhim khu kev sib khi 4. 4 Kev tuav tswj valve siv rocker los yog iav kis tau tus mob, hluav taws xob los yog pneumatic pob valve tsav los ntawm hluav taws xob ntaus ntawv los yog pneumatic ntaus ntawv, kom lub pob rotates 90. Qhib los yog kaw lub valve 4.2 phau ntawv pob valve qia sab saum toj engraved concave groove azimuth thiab qhov ntev ntawm cov spinner thiab cov kev taw qhia ntawm cov ntws channel yog qhib, thiab ntsug kev taw qhia ntawm cov khoom ntws yog kaw. 4.3 Qhov qhib thiab kaw cov cim hluav taws xob thiab pneumatic pob li qub yog cim los ntawm qhov taw qhia txoj hauj lwm hauv cov khoom siv hluav taws xob thiab cov khoom siv pneumatic. 5. Kev khaws cia, txij nkawm, kev teeb tsa thiab daim ntawv thov 5.1 Lub valve yuav tsum muab cia rau hauv chav qhuav, qhov cua. Ob sab ntawm txoj kev nyab xeeb ntawm lub valve yuav tsum tau thaiv. 5.2 Lub sijhawm ntev cia li qub yuav tsum tau khaws cia tsis tu ncua, pov tseg. Yuav tsum tau ua tib zoo saib xyuas qhov chaw, tiv thaiv kev puas tsuaj ntawm qhov chaw. 5.3 Ua ntej kev tsim kho, ua tib zoo xyuas seb lub cim valve puas haum rau kev siv. 5.4 Ua ntej kev tsim kho, kos lub valve channel thiab nto. Yog tias muaj stains, ntxuav lawv nrog cov phuam ntxuav muag. 5.5 Txheeb xyuas seb qhov ntim puas raug kaw ua ntej kev tsim kho, thiab xyuas kom meej qhov nruj ntawm cov ntim. Nyob rau tib lub sijhawm, kev sib hloov ntawm lub qia valve tsis tuaj yeem tiv thaiv. 5.6 Valves yuav tsum nyob rau hauv qhov chaw qhib tag nrho thaum ua tiav ntawm kev teeb tsa lossis cov kav dej hydrostatic test. 5.7 Lub pob yuav tsum qhib lossis kaw ua ntej siv, thiab ib feem ntawm lub pob yuav tsum tsis txhob qhib los kho lub valve. 5.8 Nyob rau hauv tus txheej txheem ntawm kev qhib los yog kaw lub phau ntawv valve, lub rocker yuav tsum tau siv los qhib los yog kaw nws, thiab kev pab nyiaj txiag lever los yog lwm yam cuab yeej yuav tsum tsis txhob siv. 5.9 Daim ntawv thov Valve yuav tsum tau khaws cia tsis tu ncua los xyuas seb puas muaj kev puas tsuaj rau saum npoo thiab ntim cov gasket. Yog tias qhov kev puas tsuaj tsis raug, nws yuav tsum tau kho thiab hloov lub sijhawm. 5.10 Rau kev sib kis ntawm hluav taws xob thiab pneumatic li qub, thov xa mus rau "Valve Electric Device Operation Manual" thiab "Valve Pneumatic Device Operation Manual" rau kev khaws cia, tu, kev teeb tsa thiab daim ntawv thov.