Taboo 21

Lub installation txoj haujlwm tsis muaj qhov chaw ua haujlwm

Kev ntsuas: Txawm hais tias qhov kev teeb tsa pib nyuaj, nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account tus neeg teb xov tooj txoj haujlwm mus sij hawm ntev thaum muab tso rau hauvvalverau kev ua haujlwm.Yuav kom qhib thiab kaw lubvalveyooj yim dua, nws raug nquahu kom tso lub valve handwheel kom nws sib npaug rau hauv siab (feem ntau yog 1.2 meters deb ntawm chav ua haujlwm hauv pem teb).Txhawm rau tiv thaiv kev ua haujlwm tsis txaus ntseeg, tes lub log ntawm lub valve yuav tsum tig mus rau sab saud thiab tsis nqes.Lub tshuab phab ntsa lub li qub thiab lwm yam khoom siv yuav tsum cia qhov chaw txaus rau tus neeg teb xov tooj sawv.Nws yog qhov txaus ntshai heev rau kev khiav lag luam saum ntuj, tshwj xeeb tshaj yog thaum siv cov kua qaub-puag, cov xov xwm muaj kev phom sij, thiab lwm yam.

Taboo 22

Valves yog ua los ntawm cov khoom siv brittle

Kev ntsuas: Thaum txhim kho thiab tsim, siv ceev faj thiab nyob deb ntawm kev tsoo cov khoom siv li qub.Tshawb xyuas lub valve, specs, thiab cov qauv ua ntej kev teeb tsa, thiab nrhiav kev puas tsuaj, tshwj xeeb tshaj yog rau lub qia valve.Lub valve qia feem ntau yuav skewed thaum shipping, yog li tig nws ob peb zaug los xyuas seb nws puas yog.Ntxuav lub valve ntawm tej khib nyiab ib yam.Txhawm rau kom tsis txhob ua rau lub log ntawm tes lossis lub valve qia thaum nqa lub valve, txoj hlua yuav tsum tau muab khi rau ntawm lub flange es tsis yog ib qho ntawm cov khoom no.Kev sib txuas ntawm lub valve yuav tsum tau ntxuav, kom tshem tawm cov hlau oxide chips, av nkos, vuam slag, thiab lwm yam khoom siv, siv cua compressed.Cov khoom loj loj, xws li vuam slag, tuaj yeem cuam tshuam cov qhov me me thiab ua rau lawv tsis tuaj yeem ua haujlwm ntxiv rau qhov yooj yim khawb qhov sealing nto ntawm lub valve.Txhawm rau tiv thaiv kev tsim tawm hauv lub valve thiab cuam tshuam nrog qhov nruab nrab ntawm qhov ntws, lub ntim ntim (kab hemp ntxiv rau cov roj txhuas lossis PTFE raw khoom daim kab xev) yuav tsum tau qhwv ib ncig ntawm cov yeeb nkab xov ua ntej muab cov ntsia hlau valve.Nco ntsoov kom sib npaug thiab sib npaug ntawm cov bolts thaum txhim kho flanged li qub. Kom tsis txhob lub valve los ntawm kev ua kom siab dhau los yog muaj peev xwm tawg, cov yeeb nkab flange thiab lub valve flange yuav tsum tau sib npaug thiab muaj qhov tsim nyog ntawm kev tshem tawm.Cov ntaub ntawv brittle thiab tsis muaj zog li qub yuav tsum tau saib xyuas tshwj xeeb.Cov yeeb nkab-welded li qub yuav tsum yog qhov chaw-welded ua ntej, tom qab ntawd los ntawm kev qhib tag nrho ntawm cov seem kaw, thiab thaum kawg, tuag vuam.

Taboo 23

Lub valve tsis muaj kev txuag hluav taws xob thiab kev txuag txias

Kev ntsuas: Qee cov li qub kuj tseem yuav tsum muaj xws li kev tiv thaiv sab nraud rau kev txuag cua sov thiab txias.Qee lub sij hawm ib tug rhuab chav pipeline yog ntxiv rau lub rwb thaiv tsev txheej.Hom valve uas yuav tsum tau khaws cia sov lossis txias yog nyob ntawm qhov xav tau ntawm kev tsim khoom.Hauv txoj kev xav, kev txuag hluav taws xob lossis txawm tias qhov ntsuas kub xav tau yog qhov nruab nrab hauv lub valve txias ntau dhau, uas yuav txo qis kev tsim khoom lossis ua rau lub valve khov.Ib yam li ntawd, thaum lub valve raug nthuav tawm, uas yog qhov tsis zoo rau kev tsim khoom lossis ua rau Frost thiab lwm yam tshwm sim tsis zoo, lub valve yuav tsum tau txias.Cov khoom siv rwb thaiv tsev txias muaj xws li cork, perlite, ua npuas ncauj, yas, diatomaceous ntiaj teb, asbestos, slag wool, iav ntaub plaub, perlite, diatomaceous ntiaj teb, thiab lwm yam.

Taboo 24

Chav ntxiab tsis ntsia bypass

Kev ntsuas: Qee lub li qub muaj cov cuab yeej thiab cov hla dhau ntxiv rau cov yam ntxwv tiv thaiv yooj yim.Rau kev kho cov cuab yeej yooj yim, ib qho bypass tau teeb tsa.Muaj ntau li qub tso nrog bypass.Qhov xwm txheej, qhov tseem ceeb, thiab kev tsim khoom ntawm lub valve txiav txim siab seb puas yuav tsum tau nruab ib lub bypass.

Taboo 25

Ntim tsis hloov tsis tu ncua

Kev ntsuas: Qee cov ntim rau cov li qub hauv Tshuag yuav tsum tau hloov vim lawv tsis muaj txiaj ntsig lossis tsis sib haum nrog qhov nruab nrab siv.Lub thawv ntim khoom yog ib txwm ntim nrog cov ntim tsis tu ncua thiab lub valve raug rau ntau txhiab ntau yam xov xwm, txawm li cas los xij thaum lub valve ua haujlwm, cov ntim khoom yuav tsum tau kho rau kev tshaj tawm.Nias lub ntim rau hauv qhov chaw los ntawm kev mus ncig hauv lub voj voog.Txhua lub voj voog lub voj voog yuav tsum yog 45 degrees, thiab cov seams ntawm lub voj voog yuav tsum yog 180 degrees sib nrug.Tam sim no qhov qis ntawm cov qog yuav tsum tau muab compressed rau qhov tob ntawm lub packing chamber, uas yog feem ntau 10-20% ntawm lub packing chamber qhov tob.Qhov siab ntawm cov ntim yuav tsum coj qhov no mus rau hauv tus account.Lub kaum sab xis rau li qub nrog cov qauv nruj yog 30 degrees.Lub voj voog seams txawv ntawm 120 degrees ntawm ib leeg.Peb cov roj hmab O-rings (natural roj hmab resistant rau qaug zog alkali hauv qab 60 degrees Celsius, nitrile roj hmab resistant rau roj cov khoom hauv qab no 80 degrees Celsius, thiab fluorine roj hmab resistant rau ntau yam corrosive media hauv qab no 150 degrees Celsius) kuj siv tau, nyob ntawm seb qhov xwm txheej. , ntxiv rau cov lus hais saum toj saud.Nylon lub tais rings (tiv taus rau ammonia thiab alkali hauv qab 120 degrees Celsius), laminated polytetrafluoroethylene rings (resistant rau muaj zog corrosive xov xwm hauv qab no 200 degrees Celsius), thiab lwm yam zoo li tus fillers. qhwv ib txheej ntawm raw polytetrafluoroethylene daim kab xev sab nraum cov asbestos li niaj zaus ntim los txhim kho sealing. thiab txo lub valve qia deterioration los ntawm electrochemical kev txiav txim.Txhawm rau kom thaj chaw txawm thiab ua kom tsis txhob tuag dhau, tig lub valve qia thaum compressing lub ntim.Tsis txhob qaij thaum koj zawm lub caj pas nrog kev siv zog sib xws.