Taboo 1

Lub valve raug ntsia tsis raug.

Piv txwv li, cov dej (steam) ntws cov kev taw qhia ntawm lub nres valve los yog kos valve yog opposite rau lub kos npe rau, thiab lub valve qia yog ntsia downward.Kab rov tav ntsia valve yog ntsia vertically.Tus kov ntawm qhov nce qia rooj vag valve lossis npauj npaim valve tsis muaj qhov qhib thiab kaw.Lub qia ntawm lub zais valve yog ntsia.Tsis mus rau qhov rooj tshuaj ntsuam.

Qhov tshwm sim: Lub valve tsis ua haujlwm, qhov hloov pauv tsis yooj yim kho, thiab lub valve qia taw qhia qis qis, feem ntau ua rau cov dej ntws tawm.

Kev ntsuas: Txhim kho nruj me ntsis raws li cov lus qhia kev teeb tsa valve.Raunce-stem gate valves, tawm txaus valve qia extension qhib qhov siab.Raunpauj npaim li qub, tag nrho xav txog qhov kev sib hloov qhov chaw.Ntau yam valve stems tsis tuaj yeem qis dua li txoj haujlwm kab rov tav, cia nyob ib leeg downward.Npog li qub yuav tsum tsis yog tsuas yog nruab nrog lub qhov rooj tshuaj xyuas uas ua tau raws li qhov xav tau ntawm lub valve qhib thiab kaw, tab sis kuj tseem yuav tsum muaj lub valve qia yuav tsum tau ntsib lub qhov rooj tshuaj xyuas.

Taboo 2

Cov kev qhia tshwj xeeb thiab cov qauv ntawm cov ntsia hlau ntsia tsis tau raws li cov qauv tsim.

Piv txwv li, lub nominal siab ntawm lub valve yog tsawg tshaj li qhov system xeem siab;Lub rooj vag li qub yog siv thaum cov yeeb nkab txoj kab uas hla ntawm cov kav dej kav dej tsawg dua lossis sib npaug li 50 hli;nres li qub yog siv rau qhuav thiab standpipe kav dej kub cua sov;npauj npaim li qub yog siv rau hluav taws kub twj tso kua mis suction kav dej.

Cov txiaj ntsig: cuam tshuam rau qhov ib txwm qhib thiab kaw ntawm lub valve thiab tswj kev tiv thaiv, siab thiab lwm yam haujlwm.Nws tuaj yeem ua rau lub valve puas thiab yuav tsum tau kho thaum lub kaw lus ua haujlwm.

Kev ntsuas: Yuav tsum paub txog daim ntawv thov ntau yam ntawm ntau hom li qub, thiab xaiv valve specifications thiab qauv raws li tus qauv tsim.Lub nominal siab ntawm lub valve yuav tsum ua kom tau raws li qhov system ntsuas siab xav tau.Raws li qhov yuav tsum tau ua ntawm kev tsim kho tshwj xeeb: thaum txoj kab uas hla ntawm cov kav dej kav dej tsawg dua lossis sib npaug li 50 hli, yuav tsum siv lub valve nres;Thaum cov yeeb nkab txoj kab uas hla ntau dua 50mm, yuav tsum siv lub rooj vag valve.Lub rooj vag li qub yuav tsum tau siv rau cov dej kub cua sov kom qhuav thiab ntsug tswj li qub, thiab npauj npaim li qub yuav tsum tsis txhob siv rau cov hluav taws kub dej twj tso kua mis.

Taboo 3

Ua tsis tau raws li qhov tsim nyog kev kuaj xyuas raws li qhov xav tau ua ntej kev teeb tsa valve.

Cov txiaj ntsig: Thaum lub sijhawm ua haujlwm, lub valve hloov pauv hloov tsis tau, kaw kom nruj thiab cov dej (steam) tuaj yeem tshwm sim, ua rau rov ua haujlwm thiab kho dua tshiab, thiab txawm tias cuam tshuam rau cov dej ib txwm muaj (steam).

Kev ntsuas: Ua ntej txhim kho lub valve, kev ntsuas lub zog thiab nruj yuav tsum tau ua.Qhov kev xeem yuav tsum random check 10% ntawm txhua batch (tib hom, tib specification, tib qauv), thiab tsis tsawg tshaj li ib.Rau qhov kaw-circuit li qub tau nruab rau ntawm cov kav dej loj uas muaj cov haujlwm txiav, kev ntsuas lub zog thiab nruj yuav tsum tau ua ib qho los ntawm ib qho.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 Dej thiab Cua Sov" (GB 50242-2002).

Taboo 4

Cov ntaub ntawv tseem ceeb, cov khoom siv thiab cov khoom siv hauv kev tsim kho tsis muaj cov ntaub ntawv pov thawj zoo lossis cov ntawv pov thawj cov khoom lag luam uas ua raws li cov qauv hauv tebchaws tam sim no lossis tsoomfwv.

Qhov tshwm sim: Qhov zoo ntawm qhov project yog tsis tsim nyog, muaj kev nyab xeeb ntawm kev sib tsoo, tsis tuaj yeem xa tuaj raws sijhawm, thiab yuav tsum tau rov ua dua thiab kho dua tshiab;ua rau ncua sijhawm ntawm kev tsim kho thiab nce peev hauv kev ua haujlwm thiab cov khoom siv.

Kev ntsuas: Cov ntaub ntawv tseem ceeb, cov khoom siv thiab cov khoom siv hauv dej, dej thiab cua sov thiab kev ua kom huv yuav tsum muaj cov ntaub ntawv pov thawj zoo lossis cov ntawv pov thawj cov khoom uas ua raws li cov qauv tam sim no los ntawm lub xeev lossis lub chaw haujlwm;lawv cov npe khoom, qauv, specifications, thiab lub teb chaws cov qauv zoo yuav tsum raug cim.Tus lej lej, hnub tsim khoom, chaw tsim khoom lub npe thiab qhov chaw, daim ntawv pov thawj ntawm cov khoom lag luam tshuaj xyuas lossis tus lej lej.

Taboo 5

Valve flip-up

Qhov tshwm sim:Kos li qub, throttle li qub, siab txo li qub, kos li qubthiab lwm yam li qub yog tag nrho cov kev taw qhia.Yog tias ntsia upside down, lub throttle valve yuav cuam tshuam rau kev siv thiab lub neej;Lub siab txo valve yuav tsis ua haujlwm tag nrho, thiab lub tshev valve yuav tsis ua haujlwm tag nrho.Nws tuaj yeem ua rau muaj kev phom sij.

Kev ntsuas: Feem ntau, li qub muaj cov cim taw qhia ntawm lub cev valve;yog tias tsis yog, lawv yuav tsum raug txheeb xyuas raws li txoj cai ua haujlwm ntawm lub valve.Lub valve kab noj hniav ntawm qhov nres valve yog asymmetrical los ntawm sab laug mus rau sab xis, thiab cov kua dej yuav tsum dhau los ntawm qhov chaw nres nkoj valve los ntawm hauv qab mus rau sab saum toj.Nyob rau hauv txoj kev no, cov dej tsis kam yog me me (txiav txim siab los ntawm cov duab), thiab nws yog kev txuag hluav taws xob qhib (vim tias qhov nruab nrab siab yog nce).Tom qab kaw, qhov nruab nrab tsis nias lub ntim, uas yooj yim rau kev txij nkawm..Qhov no yog vim li cas qhov nres valve tsis tuaj yeem ntsia rov qab.Tsis txhob nruab lub rooj vag valve upside down (uas yog, nrog lub tes log tig downwards), txwv tsis pub lub nruab nrab yuav nyob twj ywm nyob rau hauv lub valve npog qhov chaw ntev, uas yuav yooj yim corrode lub valve qia, thiab yog contraindicated los ntawm tej yam txheej txheem yuav tsum tau. .Nws yog qhov tsis yooj yim heev los hloov cov ntim khoom tib lub sijhawm.Tsis txhob nruab qhov nce qia rooj vag li qub hauv av, txwv tsis pub cov qia raug corroded los ntawm noo noo.Thaum txhim kho lub tshuab nqa nqa, xyuas kom meej tias nws lub valve yog ntsug kom nws tuaj yeem nqa tau yooj yim.Thaum txhim kho lub viav vias kos valve, xyuas kom meej tias nws tus pin yog theem kom nws tuaj yeem hloov pauv tau yooj yim.Lub siab txo valve yuav tsum tau muab ntsia rau ntawm ib tug kab rov tav yeeb nkab thiab yuav tsum tsis txhob tilted nyob rau hauv txhua txoj kev.

Taboo 6

Kev tuav lub valve qhib thiab kaw nrog lub zog ntau dhau

Qhov tshwm sim: Lub valve yuav raug puas tsuaj yam tsawg kawg nkaus, lossis kev nyab xeeb yuav tshwm sim qhov phem tshaj.

Kev ntsuas: Cov phau ntawv valve, nws lub log los yog kov, yog tsim los ntawm cov neeg ua haujlwm zoo tib yam, suav nrog lub zog ntawm qhov sib khi thiab qhov tsim nyog kaw lub zog.Yog li ntawd, ntev levers lossis ntev wrenches tsis tuaj yeem siv los txav lub rooj tsavxwm.Qee tus neeg tau siv cov wrenches, yog li lawv yuav tsum tau ceev faj tsis txhob siv ntau dhau, txwv tsis pub nws yooj yim rau kev puas tsuaj rau lub sealing nto los yog tawg ntawm tes log lossis kov.Txhawm rau qhib thiab kaw lub valve, lub zog yuav tsum nyob ruaj khov thiab tsis muaj kev cuam tshuam.Qee cov khoom ntawm lub siab-siab li qub uas cuam tshuam rau qhov qhib thiab kaw tau txiav txim siab tias qhov cuam tshuam quab yuam tsis tuaj yeem sib npaug li qub li qub.Rau chav dej, lawv yuav tsum tau preheated thiab condensed dej yuav tsum tau muab tshem tawm ua ntej qhib.Thaum qhib, lawv yuav tsum qhib kom qeeb li sai tau kom tsis txhob muaj dej rauj.Thaum lub valve qhib tag nrho, lub handwheel yuav tsum tig me ntsis kom cov xov nruj kom tsis txhob xoob thiab puas.Rau qhov nce qia li qub, nco ntsoov lub valve qia txoj haujlwm thaum qhib tag nrho thiab kaw kom tsis txhob tsoo qhov chaw tuag saum toj kawg nkaus thaum qhib tag nrho.Thiab nws yog qhov yooj yim los xyuas seb nws puas zoo li qub thaum kaw tag nrho.Yog hais tias lub valve qia ntog, los yog cov khib nyiab loj yog embedded ntawm lub valve core seals, lub valve qia txoj hauj lwm yuav hloov thaum kaw tag nrho.Thaum lub raj xa dej tau siv thawj zaug, muaj cov av ntau hauv.Koj tuaj yeem qhib lub valve me ntsis, siv lub siab ceev ntawm qhov nruab nrab los ntxuav nws, thiab tom qab ntawd kaw nws maj mam (tsis txhob kaw nrawm los yog slam nws kom tsis txhob muaj cov khoom seem ntawm qhov chaw sib khi).Qhib nws dua, rov ua qhov no ntau zaus, yaug cov av, thiab rov qab mus ua haujlwm li qub.Rau ib txwm qhib li qub, tej zaum yuav muaj av daig rau ntawm qhov chaw sib khi.Thaum kaw, siv cov txheej txheem saum toj no los ntxuav nws, thiab tom qab ntawd kaw nws kom nruj.Yog hais tias lub handwheel los yog kov puas los yog ploj, nws yuav tsum tau hloov tam sim ntawd.Tsis txhob siv lub viav vias viav vias los hloov nws, kom tsis txhob muaj kev puas tsuaj rau plaub sab ntawm lub valve qia, tsis tuaj yeem qhib thiab kaw kom zoo, thiab txawm tias muaj xwm txheej hauv kev tsim khoom.Qee qhov kev tshaj tawm yuav txias tom qab lub valve kaw, ua rau lub valve kom qis.Tus neeg teb xov tooj yuav tsum kaw nws dua thaum lub sij hawm tsim nyog kom tsis txhob muaj qhov sib khi ntawm qhov chaw sib khi.Txwv tsis pub, qhov nruab nrab yuav ntws los ntawm cov slits ntawm kev kub ceev thiab yooj yim erode lub sealing nto..Thaum lub sijhawm ua haujlwm, yog tias koj pom tias kev ua haujlwm nyuaj dhau, koj yuav tsum txheeb xyuas qhov laj thawj.Yog hais tias lub ntim yog nruj heev, loosen nws tsim nyog.Yog hais tias lub valve qia yog skewed, ceeb toom rau cov neeg ua haujlwm kho nws.Thaum qee lub valve nyob rau hauv lub xeev kaw, qhov chaw kaw yog rhuab thiab nthuav, ua rau nws nyuaj rau qhib;yog tias nws yuav tsum tau qhib lub sijhawm no, loosen lub valve npog xov ib nrab tig mus rau ib qho tig kom tshem tawm cov kev ntxhov siab ntawm lub valve qia, thiab tom qab ntawd tig lub log ntawm tes.

Taboo 7

Kev teeb tsa tsis raug ntawm cov li qub rau qhov kub thiab txias ib puag ncig

Qhov tshwm sim: ua rau muaj kev sib tsoo

Kev ntsuas: Cov qhov kub ntawm qhov kub siab tshaj 200 ° C yog qhov kub thiab txias thaum nruab, tab sis tom qab siv tas li, qhov kub thiab txias nce, cov bolts nthuav dav vim cua sov, thiab qhov sib txawv nce, yog li lawv yuav tsum tau nruj dua, uas yog hu ua "heat nruj".Cov neeg ua haujlwm yuav tsum tau xyuam xim rau txoj haujlwm no, txwv tsis pub cov dej xau tuaj yeem tshwm sim tau yooj yim.

Taboo 8

Ua tsis tiav dej hauv lub sijhawm thaum huab cua txias

Kev ntsuas: Thaum huab cua txias thiab cov dej valve raug kaw rau lub sijhawm ntev, cov dej hauv qab lub valve yuav tsum raug tshem tawm.Tom qab lub chav valve nres chav, cov dej condensed kuj yuav tsum tau muab tshem tawm.Muaj lub ntsaws rau hauv qab ntawm lub valve, uas tuaj yeem qhib kom ntws dej.

Taboo 9

Non-metallic valve, qhib thiab kaw quab yuam loj heev

Kev ntsuas: Qee lub valve tsis yog xim hlau yog tawv thiab nkig, thiab qee qhov muaj zog tsawg.Thaum ua haujlwm, lub zog qhib thiab kaw yuav tsum tsis txhob loj heev, tshwj xeeb tshaj yog tsis muaj zog.Kuj xyuam xim kom tsis txhob sib tsoo nrog cov khoom.

Taboo 10

Lub pob valve tshiab yog nruj heev

Kev ntsuas: Thaum siv lub valve tshiab, tsis txhob nias lub ntim kom nruj heev kom tsis txhob xau, kom tsis txhob muaj lub siab ntau dhau ntawm lub valve qia, nrawm hnav, thiab nyuaj rau kev qhib thiab kaw.Qhov zoo ntawm valve installation ncaj qha cuam tshuam rau nws siv, yog li ceev faj yuav tsum tau them rau cov kev taw qhia thiab txoj hauj lwm ntawm lub valve, valve kev tsim kho, valve tiv thaiv chaw, bypass thiab instrumentation, thiab valve packing hloov.