Installation valve 14 loj taboo fluorine hauv ob sab phlu valve qauv npaj txoj kev

Installation valve 14 loj taboo fluorine hauv ob sab phlu valve qauv npaj txoj kev Txhim kho li qub tsis yog ib txoj hauj lwm yooj yim. Muaj 14 yam taboos, koj puas paub? Yuav ua li cas yog tias cov kev txwv no raug ua txhaum? Koj daws nws li cas? No. 1 Hydrostatic test ntawm qhov kub tsis zoo thaum lub caij ntuj no tsim. Txhim kho li qub tsis yog ib txoj haujlwm yooj yim. Muaj 14 yam taboos, koj puas paub? Yuav ua li cas yog tias cov kev txwv no raug ua txhaum? Koj daws nws li cas? Tsis yog-tsis yog 1 Hauv kev tsim kho lub caij ntuj no, kev sim hydrostatic yog ua raws li qhov ntsuas kub tsis zoo. Vim li cas: Cov yeeb nkab khov sai sai thaum kuaj hydrostatic, ua rau cov yeeb nkab puas. Kev ntsuas: sim ua qhov ntsuas hydrostatic ua ntej lub caij ntuj no daim ntawv thov, thiab tshuab cov dej huv tom qab kev ntsuas siab, tshwj xeeb tshaj yog cov dej hauv lub valve yuav tsum yog *** hauv net, txwv tsis pub lub valve yuav khov. Qhov project yuav tsum tau ua nyob rau hauv lub caij ntuj no kev ntsuam xyuas hydrostatic, kom lub sab hauv tsev kub yog zoo, tom qab lub siab ntsuas los tshuab dej. Thaum qhov kev ntsuam xyuas hydrostatic tsis tuaj yeem ua tiav, qhov ntsuas tau tuaj yeem nqa nrog cua compressed. Tsis yog-tsis yog 2 Ua ntej ua tiav ntawm cov kav dej phwj dej tsis yog qhov hnyav, tus nqi ntws thiab ceev tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov kav dej ntws tawm. Txawm tias dej siab lub zog kuaj cov kua dej es tsis txhob ntws tawm. Cov txiaj ntsig: Cov dej tsis zoo tsis ua raws li kev ua haujlwm ntawm cov kav dej, uas feem ntau ua rau txo qis lossis thaiv cov kav dej. Kev ntsuas: siv lub kaw lus los teeb tsa cov kua dej siab tshaj plaws lossis cov dej ntws yuav tsum tsis pub tsawg dua 3m / s los yaug. Cov xim dej thiab pob tshab ntawm lub qhov hluav taws xob yuav tsum ua raws li cov xim dej thiab pob tshab ntawm cov dej hauv dej raws li kev tsim nyog los ntawm kev tshuaj xyuas qhov muag. Tsis yog-tsis muaj 3 Cov dej phwj tuaj, dej nag, cov yeeb nkab condensate tsis ua qhov ntsuas dej kaw yuav ua kom zais. Qhov tshwm sim: Tej zaum yuav ua rau cov dej xau, thiab ua rau cov neeg siv poob. Kev ntsuas: Kev ntsuas dej kaw yuav tsum tau kuaj xyuas thiab lees txais nruj me ntsis raws li tus qauv. Muab faus rau hauv av, hauv qab nthab, nruab nrab ntawm cov kav dej thiab lwm yam dej phwj tsaus, dej nag, cov yeeb nkab condensate kom tsis txhob muaj qhov to. Taboo 4 Thaum ntsuas qhov ntsuas dej siab thiab ntsuas qhov nruj ntawm cov kav dej, saib xyuas qhov kev hloov pauv ntawm tus nqi siab thiab qib dej, thiab xyuas qhov xau tsis txaus. Qhov tshwm sim: Cov dej xau tshwm sim tom qab cov kav dej ua haujlwm, cuam tshuam rau kev siv ib txwm muaj. Kev ntsuas: Thaum lub raj xa dej raug kuaj raws li cov qauv tsim thiab kev tsim kho tshwj xeeb, ntxiv rau kev sau cov nqi siab lossis kev hloov dej hauv lub sijhawm, tshwj xeeb tshaj yog yuav tsum tau ua tib zoo xyuas seb puas muaj teeb meem to. Tsis yog-tsis muaj 5 Npauj Npaim valve flange nrog zoo tib yam valve flange. Qhov tshwm sim: npauj npaim valve flange thiab zoo tib yam valve flange loj sib txawv, qee qhov flange txoj kab uas hla me me, thiab npauj npaim valve disc loj, ua rau tsis tuaj yeem qhib lossis nyuaj rau qhib lub valve puas. Kev ntsuas: raws li qhov loj me ntawm npauj npaim valve flange flange ua flange. Tsis yog-tsis muaj 6 Tsis muaj qhov tshwj tseg thiab cov khoom siv hauv kev tsim kho ntawm lub tsev, lossis qhov loj ntawm qhov tshwj tseg yog me me thiab cov khoom siv kos tsis raug cim. Yog vim li cas: WARM sanitation project tsim, xaiv chisel tsev qauv, txawm txiav tawm qhov kev ntxhov siab, cuam tshuam rau lub tsev kev nyab xeeb kev ua tau zoo. Kev ntsuas: Yuav tsum paub txog kev tsim cov duab kos ntawm cov cua sov thiab kev huv huv engineering ua tib zoo, thiab koom tes nrog kev tsim kho ntawm lub tsev qauv kom khaws cov qhov thiab cov khoom seem raws li kev xav tau ntawm cov kav dej thiab kev txhawb nqa hangers, nrog rau kev siv tshwj xeeb rau cov qauv tsim thiab kev tsim kho specifications. Tsis yog-tsis muaj 7 Thaum vuam cov yeeb nkab, qhov tsis ncaj ncees lawm ntawm cov yeeb nkab tom qab cov khub tsis nyob rau tib lub Central Line, tsis muaj qhov sib txawv ntawm cov khub, cov yeeb nkab tuab tuab tsis yog shovelled, thiab qhov dav thiab qhov siab ntawm qhov vuam. tsis ua raws li cov cai ntawm kev tsim kho. Yog vim li cas: Qhov kawg ntawm cov yeeb nkab tsis yog nyob rau hauv cov kab ncaj qha cuam tshuam rau qhov zoo ntawm vuam thiab qhov pom kev zoo. Tsis muaj qhov sib txawv ntawm ob sab, cov yeeb nkab phab ntsa tuab tsis shovelled, qhov dav thiab qhov siab ntawm qhov vuam tsis ua raws li qhov yuav tsum tau ua ntawm vuam lub zog. Kev ntsuas: Tom qab vuam cov yeeb nkab khub, cov yeeb nkab yuav tsum tsis txhob yuam kev, yuav tsum nyob rau hauv Central Line, qhov sib txawv yuav tsum tau muab tso rau ntawm khub, tuab phab ntsa yeeb nkab yuav tsum tau shoveled zawj, ntxiv rau, qhov dav thiab qhov siab ntawm vuam seam. yuav tsum tau welded raws li specification yuav tsum tau. Taboo 8 Cov yeeb nkab yog ncaj qha faus rau hauv cov av khov thiab cov av xoob yam tsis muaj kev kho mob, thiab qhov sib nrug thiab txoj hauj lwm ntawm cov yeeb nkab piers yog tsis tsim nyog, txawm nyob rau hauv daim ntawv ntawm qhuav code cib. Qhov tshwm sim: Vim qhov kev txhawb nqa tsis ruaj khov, cov yeeb nkab tau raug puas ntsoog hauv cov txheej txheem ntawm lub ntiaj teb rov qab tamping, ua rau rov ua haujlwm dua. Kev ntsuas: Lub raj xa dej yuav tsum tsis txhob muab faus rau hauv cov av khov lossis tsis kho cov av xoob, qhov sib txawv ntawm cov PIERS yuav tsum tau raws li cov kev cai ntawm kev tsim kho, thiab kev txhawb nqa CUSHION yuav tsum ruaj khov, tshwj xeeb tshaj yog nyob rau hauv cov yeeb nkab interface, uas yuav tsum tsis txhob dais shear quab yuam. Lub cib piers yuav tsum tau ua nrog cov cement mortar kom ntseeg tau tias muaj kev ntseeg siab thiab ruaj khov. Tsis yog-tsis muaj 9 Cov bolts nthuav dav siv los txhawm rau cov yeeb nkab txhawb nqa yog cov khoom siv tsis zoo, lub aperture ntawm cov bolts nthuav dav yog qhov loj heev, lossis cov bolts nthuav dav tau nruab rau ntawm cov phab ntsa cib lossis cov phab ntsa teeb. Qhov tshwm sim: Cov yeeb nkab txhawb nqa xoob, yeeb nkab deformation, lossis txawm poob. Kev ntsuas: Cov bolts nthuav dav yuav tsum raug xaiv raws li cov khoom tsim nyog, thiab yuav tsum tau coj mus kuaj xyuas thaum tsim nyog. Lub aperture ntawm lub expansion bolts yuav tsum tsis txhob loj tshaj lub sab nraud txoj kab uas hla ntawm lub expansion bolts. Lub expansion bolts yuav tsum tau siv rau lub pob zeb ua qauv. Tsis yog-tsis yog 10 Lub flange thiab gasket ntawm cov yeeb nkab txuas tsis muaj zog txaus, thiab cov ntsia hlau txuas yog luv luv lossis nyias hauv txoj kab uas hla. Cov ntaub qhwv roj hmab yog siv rau cov kav dej kub, cov ntaub qhwv asbestos rau cov kav dej txias, thiab ob lub ncoo los yog cov ntaub qhwv ntsej nrog flange liners protruding rau hauv cov yeeb nkab. Yog vim li cas: flange sib koom ua ke tsis nruj, txawm tias puas lawm, phenomenon to. Lub flange liner protrudes rau hauv cov yeeb nkab, uas yuav ua rau kom cov ndlwg tsis kam. Kev ntsuas: flanges thiab gaskets rau cov kav dej yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm siab rau kev tsim cov kav dej. Lub flange liner ntawm cov cua kub thiab cov kav dej kub yuav tsum yog roj hmab asbestos ncoo; Lub flange gasket ntawm cov dej thiab cov kav dej yuav tsum yog roj hmab gasket. Lub gasket ntawm lub flange yuav tsum tsis txhob tawg mus rau hauv lub raj, thiab nws cov txheej puag ncig mus rau lub bolt qhov ntawm lub flange yog tsim nyog. Lub bevel ncoo los yog ob peb gaskets yuav tsum tsis txhob muab tso rau hauv nruab nrab ntawm lub flange. Txoj kab uas hla ntawm lub ntsia liaj qhov rooj txuas lub flange yuav tsum tsawg dua 2 hli tshaj qhov aperture ntawm flange, thiab qhov ntev ntawm lub ntsia liaj qhov rooj protruding txiv ntseej yuav tsum yog 1/2 lub thickness ntawm cov txiv ntseej. Taboo 11 Valve installation txoj kev tsis raug. Piv txwv li, lub ntiaj teb valve los yog kos valve dej (steam) ntws kev taw qhia yog opposite rau lub kos npe rau, lub qia yog ntsia downward, kab rov tav installation ntawm kos valve yog ntsia vertically, pas nrig rooj vag valve los yog npauj npaim valve kov tsis qhib los yog kaw qhov chaw, lub valve qia tsis tig lub qhov rooj tshuaj ntsuam. Qhov tshwm sim: valve tsis ua hauj lwm, hloov kho teeb meem, valve stem down feem ntau ua rau dej to. Kev ntsuas: Txhim kho lub valve nruj me ntsis raws li cov lus qhia kev teeb tsa lub valve, tawm ntawm lub qia kom txuas qhov qhib qhov siab, lub npauj npaim valve siab xav txog qhov chaw sib hloov ntawm tus kov, txhua yam valve qia tsis tuaj yeem qis dua txoj haujlwm kab rov tav, cia ib leeg down. Nkaum valve tsis tsuas yog tsim kom tau raws li lub valve qhib thiab kaw cov kev xav tau ntawm lub qhov rooj tshuaj xyuas, tib lub sijhawm lub qia valve yuav tsum tau taw qhia rau lub qhov rooj tshuaj xyuas. Taboo 12 Cov kev qhia tshwj xeeb thiab cov qauv ntawm cov ntsia hlau tsis ua raws li cov qauv tsim. Piv txwv li, lub nominal siab ntawm lub valve yog tsawg tshaj li qhov system xeem siab; Thaum txoj kab uas hla ntawm cov kav dej pub dej yog tsawg dua lossis sib npaug li 50 hli, siv lub rooj vag valve; Cov dej kub cua sov kom qhuav, ntsug yeeb nkab siv nres valve; Lub tshuab nqus dej ntawm lub twj tua hluav taws siv npauj npaim valve. Qhov tshwm sim: cuam tshuam rau lub valve ib txwm qhib thiab kaw thiab kho qhov tsis kam, siab thiab lwm yam haujlwm. Txawm ua rau lub cev ua haujlwm, valve puas raug yuam kho. Kev ntsuas: Paub txog daim ntawv thov ntawm ntau hom li qub, raws li cov qauv tsim los xaiv lub valve specifications thiab qauv. Lub nominal siab ntawm lub valve yuav tsum ua tau raws li qhov yuav tsum tau ntawm lub kaw lus ntsuas siab. Raws li qhov yuav tsum tau ua ntawm txoj cai kev tsim kho: cov dej xa dej yeeb nkab txoj kab uas hla tsawg dua los yog sib npaug li 50 hli yuav tsum tau siv txiav tawm valve; Lub rooj vag li qub yuav tsum tau siv thaum cov yeeb nkab txoj kab uas hla ntau dua 50mm. Cov dej kub cua sov qhuav, ntsug tswj valve yuav tsum siv lub rooj vag valve, hluav taws kub twj tso kua mis yuav tsum tsis txhob siv npauj npaim valve. Taboo 13 Tsis txhob ua qhov tsim nyog tshuaj xyuas raws li cov cai ua ntej kev teeb tsa valve. Qhov tshwm sim: qhov kev ua haujlwm valve hloov pauv tsis hloov pauv, kaw xoob thiab dej ntws tawm (steam) tshwm sim, ua rau rov ua haujlwm dua, thiab tseem cuam tshuam rau cov dej ib txwm muaj (steam). Ntsuas: Lub valve yuav tsum tau kuaj rau lub zog siab thiab nruj ua ntej kev teeb tsa. Qhov kev xeem yuav tsum xaiv 10% ntawm qhov ntau ntawm txhua batch (tib hom, tib specification, tib qauv), thiab tsis tsawg tshaj li ib. Rau lub kaw Circuit Court valve ntsia rau ntawm lub ntsiab yeeb nkab kom txiav tawm qhov kev ua haujlwm, yuav tsum yog ib qho los ntawm ib qho rau lub zog thiab kev ntsuas nruj. Lub VALVE lub zog thiab kev ntsuas nruj nruj yuav tsum ua raws li "Kev Tsim Kho Zoo Txais Txoj Cai rau Lub Tsev Siv Dej, Dej thiab Cua Sov Engineering" (GB 50242-2002). Taboo 14 Rau cov ntaub ntawv tseem ceeb, cov cuab yeej siv thiab cov khoom siv hauv kev tsim kho, tsis muaj cov ntaub ntawv pov thawj kev ua haujlwm zoo lossis cov ntawv pov thawj cov khoom tsim nyog raws li cov qauv tam sim no hauv tebchaws lossis tsoomfwv. Qhov tshwm sim: qhov zoo ntawm qhov project tsis tsim nyog, muaj kev sib tsoo zais, tsis tuaj yeem xa tuaj raws sijhawm, yuav tsum tau rov ua dua tshiab; Ua rau qhov project qeeb, manpower thiab cov khoom nkag tau nce. Kev ntsuas: cov ntaub ntawv tseem ceeb, cov khoom siv thiab cov khoom siv hauv cov dej thiab cov dej ntws thiab cov cua sov thiab kev huv huv engineering yuav tsum ua kom tau raws li cov qauv tam sim no los ntawm lub xeev lossis Ministry of technical appraisal cov ntaub ntawv lossis daim ntawv pov thawj khoom tsim nyog; Cov khoom npe, qauv, specification, lub teb chaws zoo tus qauv code, hnub yug, lub npe thiab qhov chaw ntawm lub chaw tsim tshuaj paus, soj ntsuam daim ntawv pov thawj los yog code ntawm tus me nyuam yuav tsum tau qhia. Kev npaj ntawm fluorine lined valve qauv Kev piav qhia ntawm fluorine lined valve qauv kev npaj: fluorine hauv ob sab phlu valve qauv yog sib cais los ntawm cov fluorine hauv ob sab phlu nyob rau hauv "Txoj kev rau kev npaj ntawm Valve Model", thiab lub valve qauv tau luam tawm los ntawm Standardization Administration tsis ntev los no . Tshaj tawm los ntawm Tuam Tshoj Machinery Industry Federation, raws li GB / T1.1-2009 cov cai rau kev tsim, valve qauv muab tso ua ke los ntawm National valve Standardization Technical Committee (SAC / TC188) centralized. Raws li JB/T 308-2004 kho. Fluorine lined valve qauv muab tso ua ke qhov zoo tshaj plaws fluorine lined valve nyob rau hauv kev ua lag luam thaum kawg ntawm cov khoom chaos. Fluorine lined valve qauv system yog tsim los ntawm hom, tsav, kev sib txuas hom, cov qauv txheej txheem, cov khoom siv hauv ob sab phlu, nominal siab, cov khoom siv lub cev thiab lwm yam tsis zoo ntawm qee txoj kev xov tooj thiab cov tsiaj ntawv code tsim los ntawm tus lej yuav khoom, muag khoom yooj yim, tsim, tsim thiab lwm yam. siv cov specification kom raug. Cov nram qab no valve hauv kev nthuav dav rau koj los qhia txog lub hauv paus ntsiab lus ntawm fluorine lined valve yog dab tsi, lub ntsiab lus ntawm tus qauv code. Lub hauv paus ntsiab lus ua haujlwm ntawm fluorine lined valve: Fluorine lined valve, tseem hu ua fluorine yas lined corrosion resistance valve, yog PTFE resin (los yog cov txheej txheem ua tiav) los ntawm molding (los yog inlaid) txoj kev nyob rau hauv lub puab phab ntsa ntawm cov hlau los yog hlau valve bearing qhov chaw (lub tib txoj kev tsim nyog rau txhua yam ntawm cov hlab ntsha siab thiab cov kav dej hauv ob sab phlu) los yog sab nrauv ntawm lub valve sab hauv qhov chaw, siv nws cov cim tsis zoo rau cov xov xwm muaj zog corrosive ua los ntawm txhua yam ntawm li qub thiab cov hlab ntsha siab. Fluorine lined valve yog lub valve lub cev nruab nrab tuaj yeem ncav cuag txhua qhov chaw uas siv cov txheej txheem hauv ob sab phlu, cov ntaub ntawv hauv ob sab phlu feem ntau yog FEP (F46) thiab PCTFE (F3) thiab lwm yam fluorine plastics, tuaj yeem tsim rau ntau hom sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua aqua thiab ntau yam organic acids, muaj zog acids, muaj zog oxidants thiab lwm yam corrosive media pipelines, thiab lwm yam. Txawm li cas los xij, fluorine lined valve raug txwv los ntawm qhov kub thiab txias (tsuas yog siv rau qhov nruab nrab ntawm -50 ℃ thiab 150 ℃ ) . Cov li qub uas tuaj yeem ua los ntawm cov yas fluorine yog: fluorine lined npauj npaim valve, fluorine lined pob valve, fluorine lined globe valve, fluorine lined diaphragm valve, fluorine lined gate valve, fluorine lined plug valve, thiab lwm yam.