Gasket rau Plhaub thiab Tube Thaum tshav kub kub Exchangers: Tus yuam sij rau Sealing

Gasket rau Plhaub thiab Tube Thaum tshav kub kub Exchangers: Tus yuam sij rau Sealing

Nyob rau hauv industrial ntau lawm,plhaub thiab raj kub exchangersyog cov khoom siv tseem ceeb rau kev sib pauv cua sov. Lawv tau siv dav hauv ntau qhov chaw xws li roj av, tshuaj engineering, tshuaj fiber ntau, thee mining, tsim hluav taws xob, thiab metallurgy, ua haujlwm nrog kev xa cov cua sov ntawm ib qho dej mus rau lwm qhov.

Ntawm cov khoom no, lub gasket, ua ib qho tseem ceeb ntawm cov khoom siv hluav taws xob, ua lub luag haujlwm tseem ceeb heev. Nws tsis tsuas yog tiv thaiv kev sib txawv ntawm cov xov xwm sib txawv hauv cov khoom siv hluav taws xob, tab sis kuj ua kom cov kev ua tau zoo thiab kev nyab xeeb ntawm kev sib pauv cua sov.

Kab lus no yuav piav qhia txog cov khoom siv, kev xav txog kev tsim, kev ceev faj txog kev teeb tsa, thiab kev saib xyuas cov gaskets rau lub plhaub thiab lub raj cua kub exchangers, pab cov neeg nyeem kom nkag siab txog qhov zoo li me me tab sis tseem ceeb heev.

Nyob rau hauv lub plhaub thiab lub raj kub exchangers, cov khoom thiab cov khoom ntawm lub gasket yog lub hauv paus rau kev ruaj ntseg sealing zoo thiab kev nyab xeeb ntawm cov khoom siv. Xaiv cov khoom tsim nyog tuaj yeem ua tau raws li qhov yuav tsum tau ua nyob rau hauv ntau yam kev ua haujlwm thiab txuas ntxiv lub neej kev pab cuam ntawm lub gasket.

1. Cov khoom siv thiab lawv cov yam ntxwv

Cov ntaub ntawv rau lub plhaub thiab lub raj cua kub exchanger gaskets muaj ntau haiv neeg, muaj xws li graphite, roj hmab, thiab polytetrafluoroethylene (PTFE). Txhua yam khoom muaj nws cov khoom tshwj xeeb thiab cov xwm txheej siv tau.

Graphite: Graphite yog cov khoom siv uas tiv taus qhov kub thiab txias thiab corrosion, tswj kev ruaj ntseg hauv huab cua kub thiab tshuaj lom neeg ib puag ncig. Nws muaj qhov ua tau zoo thiab nws tus kheej- lubrication, uas tso cai rau nws hloov tau zoo rau qhov me me ntawm qhov tsis sib xws ntawm flanges, yog li ua tiav cov txiaj ntsig zoo sealing. Graphite gaskets yog siv dav hauv kev sib khi daim ntaub ntawv uas muaj qhov kub thiab txias, siab siab, thiab cov xov xwm corrosive heev.

Roj Hmab: Roj hmab gaskets muaj elasticity zoo, ua rau lawv ua tiav sealing nyob rau hauv qis clamping quab yuam. Lawv muaj peev xwm ua tau zoo rau ntau yam kev tshaj tawm, tab sis lawv qhov kub thiab txias kuj yog qhov tsis zoo, feem ntau haum rau kev sib khi ntawm ambient los yog nruab nrab kub ntau yam. Roj hmab gaskets feem ntau yog siv rau sealing dej, cua, chav, thiab lwm yam xov xwm.

Polytetrafluoroethylene (PTFE): PTFE yog lub siab -kev ua haujlwm yas yas nrog cov tshuaj tiv thaiv corrosion zoo heev, siab -kub tsis kam, thiab tsis tshua muaj kev sib txhuam coefficient. Nws tuaj yeem tiv taus qhov yaig ntawm yuav luag txhua yam tshuaj thiab tswj kev ua haujlwm ruaj khov ntawm qhov kub thiab txias. PTFE gaskets yog tsim rau sealing heev corrosive xov xwm xws li muaj zog acids, muaj zog bases, thiab organic solvents, tab sis lawv lub zog kuj tsis tshua muaj, yuav tsum tau siv cov ntaub ntawv sib xyaw los txhim kho lawv cov khoom siv kho tshuab.

2. Qhov zoo thiab qhov txwv ntawm Hlau-Clad Gaskets

Hlau -clad gaskets yog ib hom tshwj xeeb ntawm gasket uas encapsulates tsis yog-cov ntaub ntawv hlau (xws li graphite, asbestos, thiab lwm yam) nyob rau hauv lub plhaub hlau, sib txuas qhov zoo ntawm ob qho tib si hlau thiab tsis yog- cov ntaub ntawv hlau. Qhov zoo ntawm hom gasket no suav nrog lub zog siab, tiv thaiv kev tawg, thiab muaj zog, cia nws tiv taus siab dua thiab kub. Txawm li cas los xij, nws txoj kev rov qab quab yuam yog txwv, yuav tsum tau lub flange tiaj tus heev thiab lub zog clamping siab kom ua tiav cov txiaj ntsig zoo sealing. Txhawm rau kov yeej qhov kev txwv no, daim ntawv graphite tuaj yeem siv rau sab nrauv ntawm cov hlau-clad gasket los txhim kho nws cov kev ua tau zoo rov qab thiab kev sib khi.

Hlau- clad gaskets tuaj yeem tsim nyob rau hauv ntau yam kev teeb tsa raws li cov khoom sib txawv, xws li 201, 304, 316 stainless hlau clad graphite (kub- tiv taus txog 650 degree) gaskets, asbestos- clad gaskets, thiab ceramic fibers (14d degree) Cov ntaub ntawv sib txawv ntawm clad gaskets tuaj yeem ua tau raws li ntau hom kev ua haujlwm. Cov ntaub ntawv rau clad gaskets muaj xws li A3 steel, stainless hlau (201, 304, 316), tooj liab, txhuas, thiab lwm yam, thiab cov fillers muaj xws li hloov tau graphite (80%), asbestos (10%), asbestos -dawb, ceramic fiber (10%), thiab lwm yam.

Hom gasket no feem ntau yog siv rau kev sib khi loj - txoj kab uas hla ntawm cov hlab ntsha siab (xws li cov khoom siv hluav taws xob sib hloov, cov reactors, cam khwb cia hlau flanges, lub tog raj kheej taub hau, boilers, thiab lwm yam) thiab kuj yog ib qho yooj yim rau nruab thiab tshem tawm, resistant rau kev puas tsuaj, thiab muaj peev xwm tiv thaiv tawm erosion ntawm lub gasket, txhim khu kev tiv thaiv.

3. Cov yam ntxwv ntawm Hlau-Graphite Wound Gaskets

Hlau -graphite qhov txhab gaskets yog tsim los ntawm kev sib hloov winding hlau thiab graphite strips. Lawv muaj compressive resilience, uas tso cai rau lawv tswj tau zoo sealing kev ua tau zoo nyob rau hauv cov cheeb tsam uas muaj kub thiab siab fluctuations.

Cov gaskets no zoo heev uas tsis yog -permeability, lub neej ntev kev pab cuam, thiab muaj txij nkawm-dawb, ua rau lawv tshwj xeeb tshaj yog haum rau sealing daim ntaub ntawv uas muaj xws li kub, high pressures, thiab corrosive media. Cov hlau sawb muab lub zog thiab kev txhawb nqa, thaum lub graphite sawb muab cov khoom sib khi zoo. Kev sib xyaw ntawm ob cov ntaub ntawv no ua kom ntseeg tau tias lub gasket ua tau zoo nyob rau hauv kev ua haujlwm nyuaj.

Tom qab tau txais kev nkag siab tob hauv - cov ntaub ntawv thiab cov khoom ntawm gaskets, qhov kev tsom mus tom ntej yuav tsum yog ntawm kev txiav txim siab tsim qauv rau gaskets. Kev tsim qauv tsim nyog tuaj yeem ua kom ntseeg tau tias gaskets ua tau zoo nyob rau hauv cov ntaub ntawv siv tau thiab ua tau raws li qhov yuav tsum tau ua nyob rau hauv ntau yam kev ua haujlwm.

1. Kev faib tawm thiab cov ntawv ntawm Gaskets

Plhaub thiab lub raj cua kub exchanger gaskets feem ntau muab faib ua ob peb hom, nrog rau lub raj lub thawv gaskets, ntab taub hau gaskets, raj lub thawv sab gaskets, sab hauv lub taub hau gaskets, thiab lub taub hau npog gaskets.

Daim ntawv ntawm gasket sib txawv raws li qhov yuav tsum tau muaj ntawm cov raj sib txawv. Piv txwv li, ntau- raj xa hluav taws xob xa hluav taws xob feem ntau xav tau cov ntawv sib txawv ntawm cov tav ntawm lub voj voog sab hauv ntawm lub gasket los txhim kho cov nyhuv sealing.

Cov tav no tuaj yeem tsim thiab hloov kho raws li kev ua haujlwm sib txawv kom ua tau raws li qhov xav tau kev sib khi ntawm ntau lub thawv kub hloov lub thawv thiab tsis yog - lub voj voog siab.

2. Cov kev xav tau ntawm kev ua tau zoo thiab kev hloov tau rau kev ua haujlwm

Cov yam ntxwv ntawm kev ua haujlwm ntawm cov khoom siv hluav taws xob sib txuas yog zoo sib xws rau kev tiv thaiv corrosion thiab kub tsis kam ntawm cov hlau cladding.

Cov khoom siv uas tsis yog-nws yog xim hlau hloov pauv tau tso cai rau lub gasket kom ua tiav cov kev sib khi zoo nyob rau hauv qis clamping quab yuam. Kev siv cov gaskets yog qhov tshwj xeeb tshaj yog nyob rau hauv kev ua haujlwm nrog kub thiab siab hloov pauv.

Cov ntaub ntawv sib txawv ntawm cov khoom siv hluav taws xob sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias, nruab nrab tsis kam, thiab siab- muaj peev xwm ua tau.

Yog li ntawd, thaum xaiv cov gaskets, nws yog ib qho tseem ceeb uas yuav tsum tau ua raws li cov kev cai ntawm tus tsim drawings thiab tsis txhob arbitrarily hloov hom thiab cov khoom ntawm lub gasket.

Lub installation ntawm gaskets yog ib qho tseem ceeb hauv kev ua kom lub sealing kev ua tau zoo ntawm lub tshav kub exchanger. Txoj kev txhim kho kom raug tuaj yeem tsis tsuas yog txhim kho cov nyhuv sealing tab sis kuj txuas ntxiv lub neej kev pab cuam ntawm lub gasket. Ntawm no yog ob peb yam tseem ceeb uas yuav tsum tau them sai sai rau thaum lub sij hawm installation ntawm gaskets.

1. Ua ntej-Kev kuaj xyuas

Ua ntej txhim kho lub gasket, nws yuav tsum tau ua tib zoo tshuaj xyuas lub flange nto kom paub tseeb tias nws yog tiaj tus, tsis muaj khawb, thiab corrosion -dawb. Kev tsis sib xws lossis qhov tsis xws ntawm qhov flange tuaj yeem cuam tshuam rau kev sib khi ua haujlwm ntawm lub gasket thiab tej zaum yuav ua rau to. Nyob rau tib lub sijhawm, tshuaj xyuas cov tsos ntawm lub gasket kom ntseeg tau tias nws tsis muaj kev puas tsuaj, undeformed, thiab nws qhov ntev raws li qhov yuav tsum tau ua.

2. Cov ntsiab lus tseem ceeb thaum nruab

Txoj hauj lwm ntawm qhov txhab ntawm lub Gasket: Lub qhov txhab ntawm lub gasket yuav tsum nyob nruab nrab ntawm lub flange sealing nto thiab yuav tsum tsis txhob arbitrarily nce qhov dav ntawm qhov txhab.

Txwv tsis pub, nws yuav cuam tshuam rau lub zog clamping ntawm lub bolts, yog li txo qhov kev sib khi ntawm lub gasket. Qhov no yog vim lub voj voog sab hauv weld cov ntsiab lus ntawm cov gasket raug ua rau tawg nyob rau hauv axial clamping quab yuam, ua rau gasket tsis ua hauj lwm.

Xaiv Cov Khoom Siv Gasket: Tsis txhob hloov cov khoom siv qib siab - qib siab nrog qib qis - qib ib. Gaskets ua los ntawm cov ntaub ntawv sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias, siab tsis kam, thiab corrosion kuj zog. Siv cov khoom siv qis- qib gasket yuav ua rau lub gasket tsis ua haujlwm thaum lub sijhawm ua haujlwm, ua rau muaj kev sib tsoo.

Kev taw qhia ntawm lub Gasket: Rau gaskets nrog directionality (xws li cov ribs), lawv yuav tsum tau muab ntsia rau hauv qhov tseeb. Txwv tsis pub, nws yuav cuam tshuam cov nyhuv sealing ntawm lub gasket.

3. Tshaj tawm -Kev kuaj xyuas

Tom qab kev teeb tsa, lub flange bolts yuav tsum tau muab sib npaug kom nruj kom ntseeg tau tias lub gasket sib npaug. Ua ntej cov cuab yeej muab tso rau hauv kev ua haujlwm, yuav tsum tau kuaj xyuas qhov dej ntawm qhov flange kom ntseeg tau tias kev sib khi zoo. Yog tias pom muaj cov pa tawm, lub clamping quab yuam ntawm lub bolts yuav tsum tau hloov kho raws sij hawm los yog lub gasket yuav tsum tau hloov.

Tom qab ua kom muaj kev txhim kho kom raug thiab siv cov gaskets rau lub plhaub thiab lub raj kub sib hloov, cov kauj ruam tseem ceeb tom ntej yog kev saib xyuas thiab kev saib xyuas. Kev saib xyuas zoo thiab kev saib xyuas zoo tuaj yeem txuas ntxiv lub neej kev pab cuam ntawm lub gasket, txo qhov kev pheej hmoo ntawm kev xau, thiab ua kom lub sijhawm ntev -kev ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob.

1. Kev cuam tshuam ntawm Environmental Factors

Lub sealing gaskets ntawm lub tshav kub exchangers tuaj yeem cuam tshuam los ntawm ib puag ncig ib puag ncig. Sab nraum zoov, kev tiv thaiv npog lossis cov txheej rwb thaiv tsev yuav tsum tau siv rau sab nraud ntawm cov khoom siv hluav taws xob los tiv thaiv kev yaig ntawm lub gasket los ntawm dej nag, plua plav, thiab lwm yam khoom.

Feem ntau, sealing gaskets yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav, tsis txhob tshav ntuj ncaj qha thiab txo qhov cuam tshuam ntawm ib puag ncig ntawm lawv txoj kev laus.

2. Kev cuam tshuam ntawm kev hloov pauv hauv kev ua haujlwm

Thaum kev ua haujlwm hloov pauv, qhov kev ntxhov siab uas tsim los ntawm lub gasket yog siab dua qhov uas nyob rau hauv qhov kev thauj khoom tas li, thiab qhov cuam tshuam rau cov qauv sab hauv ntawm cov khoom yuav tsum tsis txhob underestimated.

Nquag pib-ups thiab kaw lossis ntev- lub sijhawm cia tsis zoo rau kev siv lub neej ntev ntawm gasket.

Txhawm rau txo qhov cuam tshuam ntawm qhov kub thiab txias hloov pauv, cov khoom siv caij nplooj ntoos hlav tuaj yeem ntsia tau. Cov khoom siv caij nplooj ntoos hlav tuaj yeem hloov kho lub zog clamping ntawm lub gasket thaum lub sij hawm kub thiab siab hloov, yog li tswj xyuas kev sib khi zoo.

3. Kev cuam tshuam ntawm cov kua nruab nrab

Thaum xaiv lub sealing gasket, yuav tsum tau them nyiaj mloog mus rau qhov kev siv ntawm cov khoom siv kua thiab xav txog cov khoom uas yuav ua rau lub cev lub cev ntawm lub sealing gasket, xws li sib tov ntawm ntau yam additives, inhibitors, thiab lwm yam tshuaj.

Thaum lub sij hawm tsim cov txheej txheem, nws yog ib qho tseem ceeb kom xav txog tag nrho thiab txo qhov corrosion ntawm gasket los ntawm cov kua nruab nrab. Yog tias cov dej xau tshwm sim vim kev laus ntawm lub gasket, kev ntsuas ib ntus tuaj yeem ua tau, xws li zawm cov bolts ntawm cov khoom sib xyaw ua ke los kho cov compression quab yuam ntawm gasket ntawm cov khoom siv hluav taws xob.

Txawm li cas los xij, tom qab kev kho mob ib ntus, cov neeg ua haujlwm tu cov neeg ua haujlwm los ntawm cov chaw tsim khoom siv hluav taws xob yuav tsum tau hu rau sai li sai tau rau kev kho kom ruaj ntseg ntawm cov khoom siv.

Txawm hais tias lub gasket rau lub plhaub thiab lub raj cua kub exchangers tsuas yog ib qho me me ntawm cov khoom siv hluav taws xob, nws lub luag haujlwm yuav tsum tsis txhob muab xam. Nws tsis tsuas yog tiv thaiv cov xov xwm tawm thiab ua kom cov kev ua tau zoo thiab kev nyab xeeb ntawm kev sib pauv cua sov tab sis kuj tswj kev ua haujlwm ruaj khov hauv kev ua haujlwm nyuaj.

Thaum xaiv thiab siv cov gaskets, nws yog ib qho tseem ceeb uas yuav tsum xav txog tag nrho cov kev ua haujlwm, cov khoom siv, cov qauv tsim, thiab cov ntsiab lus ntawm kev teeb tsa thiab kev saib xyuas. Tsuas yog nyob rau hauv txoj kev no tuaj yeem ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov khoom siv hluav taws xob hluav taws xob, kev pabcuam lub neej ntawm cov cuab yeej txuas ntxiv, thiab muaj kev lees paub txhim khu kev qha rau kev tsim khoom.