Teflon Heat Exchangers rau Corrosive Fluids: Qhov kawg Pros, Cons, thiab Leak -Cov Lus Qhia Ua Pov Thawj

Hloov cov cua sov ntawm cov kua dej corrosive yog ib qho teeb meem engineering tas li hauv kev ua tshuaj lom neeg, electroplating, kws tshuaj, thiab hydrometallurgy. Cov hluav taws xob hluav taws xob tsis tu ncua feem ntau muaj cov xau sab hauv uas sib xyaw ua kua thiab ua rau cov khoom qias neeg, xau tawm sab nraud uas ua rau tib neeg thiab ib puag ncig muaj kev pheej hmoo, thiab corrosion uas tshwm sim sai thiab txiav kev pab cuam lub neej ntau. PTFE (Teflon) cov khoom siv hluav taws xob sib txawv yog qhov kev daws teeb meem vim tias lawv siv cov kab hluav taws xob tsis zoo los cais cov kwj deg. Lawv ua raws li cov ntsiab lus ntawm kev tiv thaiv cov xau thiab "yas hloov steel" rau kev hloov cov cua sov los ntawm cov kua dej corrosive. Txoj kev no ua haujlwm tau zoo heev kom tsis txhob hla - kis kab mob thiab kev nyab xeeb kev raug mob los ntawm qhov tshwm sim, txawm li cas los xij nws tsuas yog ua haujlwm hauv qee qhov xwm txheej.

Cov txiaj ntsig tseem ceeb tshaj plaws ntawm PTFE Heat Exchangers
PTFE heat exchangers kho cov teeb meem loj hauv kev tuav cov kua dej aggressive los ntawm kev siv cov ntaub ntawv muaj zog thiab tsim qauv.

PTFE tiv taus txhua yam tshuaj, suav nrog cov kua qaub ua ke, halogens, muaj zog oxidisers, thiab cov khoom uas tawg sai sai. Qhov no txwv tsis pub xau los ntawm kev xeb thiab hla -kev sib kis, uas txhais tau hais tias cov txheej txheem yuav kav ntev dua nrog kev cuam tshuam tsawg dua. PTFE yog ib qho kev xaiv zoo dua rau qhov teeb meem hnyav dua li cov graphite nkig lossis kim Hastelloy vim nws muaj zog thiab hloov tau.

Lub ntuj tsis yog -stick nto nres qhov tsim ntawm nplai, muaju, thiab cov polymers, uas ua kom cov cua sov hloov mus rau lub sijhawm ntev. Tsis zoo li cov khoom siv hlau sib txuas, nws cov khoom sib txuas yuav tsum tau ua kom huv si, fouling - cuam tshuam kev ua tau zoo txo ​​qis thiab rov qab kaw rau kev ntxuav yog tsawg dua.

Kev tsim kho sib sib zog nqus- tsawg dua li cov hlau zoo sib xws lossis graphite units- ua kom yooj yim txav, nruab, thiab tswj. Cov khoom siv lub raj txuas tau yooj yim ua rau nws tuaj yeem tsim cov coils lossis plhaub - thiab - raj tshuab ua kom haum zoo hauv qhov chaw nruj.

Kev tiv thaiv corrosion ua kom tiav ua rau txhua yam txhim khu kev qha thiab nyab xeeb los ntawm kev tshem tawm txoj hauv kev ntawm perforation, uas tuaj yeem ua rau muaj xwm txheej, nchuav, lossis ua txhaum txoj cai. Qhov no ua rau PTFE exchangers yog qhov kev xaiv zoo tshaj plaws rau cov kua dej uas muaj tshuaj lom, siab - tus nqi, los yog siab - purity thiab yuav tsum tsis muaj kev sib kis tag nrho -.

Tej yam uas yuav tsum nco ntsoov: PTFE cov khoom siv hluav taws xob tuaj yeem ua haujlwm tsuas yog nyob rau hauv qee qhov kev txwv lub cev thiab engineering uas cuam tshuam rau nws qhov kev tsim nyog.

Qhov teeb meem tseem ceeb tshaj plaws yog tias PTFE muaj cov thermal conductivity tsawg heev piv rau cov hlau. Kev them nyiaj yog nyob ntawm qhov dav, nyias- cov phab ntsa ntawm lub raj kom nce thaj tsam, uas yuav ua rau lub tsev loj dua rau cov cua sov hnyav. Nyob rau hauv cov xwm txheej uas tsis muaj ntau qhov chaw los yog lub load yog siab, qhov no muaj ib tug qis dua tag nrho cov tshav kub hloov coefficient dua hlau lwm.

Qhov ntsuas kub feem ntau yog nyob nruab nrab ntawm 150 thiab 180 degree, thiab lub siab txwv feem ntau yog nyob nruab nrab ntawm 0.3 thiab 0.6 MPa ntsuas. Qhov no txhais tau hais tias siab - qhov kub thiab txias los yog siab - cov kev pabcuam siab tsis tuaj yeem ua tau. Graphite lossis alloy exchangers ua haujlwm zoo hauv cov xwm txheej no.

Vim tias cov khoom siv yog mos, nws yuav tsum tau tiv thaiv los ntawm hnav thiab tsim kua muag thiab cuam tshuam. Txhawm rau kom cov raj tsis txhob raug puas hauv cov slurries abrasive, siab - nrawm ntws los yog slurries uas muaj cov khib nyiab nyuaj yuav tsum muaj cov yam ntxwv uas lim lossis tiv taus yaig.

Kev nqis peev thawj zaug hauv ib cheeb tsam hloov hluav taws xob ntau dua li cov pa roj carbon steel lossis stainless hlau vim tias tshwj xeeb tsim khoom. Tag nrho cov nqi ntawm cov tswv cuab saib uas yuav siv sij hawm ntev dua kev ua haujlwm yam tsis muaj kev saib xyuas, tsis muaj kev sib kis, thiab kev txhim kho kev nyab xeeb feem ntau qhia txog kev lag luam zoo dua nyob rau lub sijhawm.

Daim ntawv qhia rau xaiv thiab siv PTFE Thaum tshav kub kub Exchangers
PTFE heat exchangers yog tus qauv rau huab cua corrosion, tsis muaj paug, thiab fouling tej yam kev mob, tab sis lawv raug txwv los ntawm conductivity, kub, thiab siab.

Xav pom zoo rau lawv thaum cov xov xwm corrosive heev (ntau dua li cov hlau tuaj yeem ua tau), xav tau kev sib cais nruj, lossis kev ntsuas qhov ntsuas yog qhov teeb meem. Qhov no yog ib txwm nyob rau hauv electroplating activation / txo tso tsheb hlau luam, tshuaj reactors, los yog pickling txheej txheem. Anti-fouling thiab lub teeb yuag nta ua rau lawv txawm tias tsim nyog rau cov ntawv thov qhov hnyav lossis qhov chaw tseem ceeb.

Ceev faj lossis xaiv lwm yam kev xaiv yog tias qhov kub siab tshaj 180 degree, lub kaw lus siab siab, cov xov xwm yog abrasive, los yog cov phiaj xwm muab tus nqi ntau dua rau cov nqi qis tshaj qhov ntev - txuag nyiaj.

Txhawm rau ua qhov kev xaiv zoo, koj yuav tsum ua qhov ntsuas thermal thiab hydraulic. Txhawm rau kom pom tseeb, ntxiv cov duab piav qhia ntawm cov khoom sib piv nrog lub plhaub - thiab - cov qauv raj lossis cov kab kos ua tau zoo. Xa cov ntaub ntawv hais txog cov txheej txheem, xws li kev tshaj tawm muaj pes tsawg leeg, qhov kub thiab txias, siab, ntws, thiab fouling yam, kom peb tuaj yeem ua cov tswv yim tsim kev cai. Tshawb xyuas nplooj ntawv Teflon heat exchanger khoom rau specs, nplooj ntawv tshuaj lom neeg kev lag luam daws cov piv txwv, los yog nplooj ntawv PTFE heaters kom pom qhov txawv ntawm cov cua sov ncaj qha thiab tsis ncaj.

PTFE kub exchangers txhim kho kev nyab xeeb thiab uptime nyob rau hauv corrosive tshav kub hloov lwm lub tsev los ntawm teeb pom kev zoo txwv rau qhov twg lawv yuav siv tau.