Taw qhia
Thaum tshav kub kub exchangersyog cov cuab yeej tseem ceeb uas siv dav hauv ntau yam lag luam, suav nrog kev ua tshuaj lom neeg, tsim hluav taws xob, tub yees, thiab ua zaub mov. Lawv hloov cov cua sov ntawm ob lossis ntau dua cov kua dej ntawm qhov sib txawv ntawm qhov kub thiab txias, ua lub luag haujlwm tseem ceeb hauv cov txheej txheem kev ua haujlwm thiab kev siv hluav taws xob. Txawm li cas los xij, zoo li txhua yam khoom siv kho tshuab, cov khoom siv hluav taws xob sib txawv tau ua rau ntau yam kev ua haujlwm tsis ua haujlwm dhau sijhawm. Kev nkag siab txog cov teeb meem muaj peev xwm no, yuav ua li cas txhawm rau txheeb xyuas thiab kuaj xyuas lawv, nrog rau cov tswv yim tu thiab tu kom zoo, yog qhov tseem ceeb rau kev ua kom ntseeg tau lawv lub sijhawm ntev thiab kev ua haujlwm zoo.
Hom Kev Kub Kub Exchangers
Plhaub - thiab - Tube Thaum tshav kub kub Exchangers
Plhaub - thiab - raj cua sov exchangers yog ib yam ntawm feem ntau hom. Lawv muaj ib pob ntawm cov hlab ntim rau hauv lub plhaub cylindrical. Ib qho dej ntws los ntawm cov hlab ntsha (tube - sab), thaum lwm qhov ntws tawm sab nraud ntawm cov hlab ntsha, hauv lub plhaub (plhaub - sab). Cov khoom siv hluav taws xob no tsim nyog rau kev siv siab-siab thiab kub kub vim lawv qhov kev tsim kho zoo.
Phaj Heat Exchangers
Phaj kub exchangersyog ua los ntawm ib tug series ntawm nyias, corrugated hlau daim hlau. Cov kua dej ntws mus rau hauv cov kev sib txuas ntawm cov phiaj, uas muab cov cua kub hloov pauv loj hauv qhov chaw sib txuam. Lawv muaj txiaj ntsig zoo thiab feem ntau siv rau hauv cov ntawv thov uas yuav tsum tau muaj kev hloov pauv kub siab, xws li hauv cov khoom noj siv mis thiab dej haus.
WeldedPhaj Heat Exchangers
Welded Phaj Thaum tshav kub kub Exchangerssiv ib tug series ntawm daim hlau. Txawm li cas los xij, lawv muaj cov qauv tsim ntau dua, tso cai rau yooj yim disassembly thiab tu
Spiral Thaum tshav kub kub Exchangers
Kauv hluav taws kub exchangers muaj ob txoj kab uas tsim los ntawm spirally mob hlau daim hlau. Lawv muaj txiaj ntsig zoo hauv kev tuav cov kua dej khov thiab cov kua dej qias neeg, vim tias cov qauv siv kauv yuav txo tau qhov tshwm sim ntawm fouling.
Cua - Txias Thaum tshav kub kub Exchangers
In cua txias cua sov exchangers, huab cua yog siv los ua qhov cua txias nruab nrab. Lawv tau dav siv nyob rau hauv cov xwm txheej uas tsis tshua muaj dej los yog kim, xws li hauv qee cov nroj tsuag kev lag luam thiab tsheb radiators.
Common Operational Failures ntawm Heat Exchangers
Fouling
Fouling yog ib qho teeb meem loj tshaj plaws hauv cov khoom siv hluav taws xob. Nws yog hais txog kev tsub zuj zuj ntawm cov khoom tsis xav tau ntawm qhov chaw hloov hluav taws xob. Cov tshuaj no tuaj yeem suav nrog cov nplai (tsim los ntawm nag lossis daus ntawm cov kua dej), cov khoom siv corrosion, kev loj hlob ntawm cov kab mob lom (xws li algae hauv dej - raws li cov kab ke), thiab cov khib nyiab tshem tawm. Fouling txo cov hluav taws xob hloov hluav taws xob ntawm cov khoom siv hluav taws xob, ua kom lub zog siv hluav taws xob ntau dua thiab ua rau muaj kev ua haujlwm siab dua. Piv txwv li, nyob rau hauv lub plhaub - thiab - lub raj cua kub exchanger siv nyob rau hauv ib tug fais fab nroj tsuag, scale tsim nyob rau hauv lub raj nto yuav txo tau lub tshav kub hloov tus nqi, uas yuav txo tau cov pa ntau lawm thiab txo lub zog tsim efficiency.
Cov dej ntws tawm
Cov dej xau tuaj yeem tshwm sim hauv cov khoom siv hluav taws xob vim muaj ntau yam laj thawj. Nyob rau hauv lub plhaub - thiab - raj kub exchangers, raj - rau - raj - daim ntawv pob qij txha yuav ua tsis tau raws sij hawm vim qaug zog, corrosion, los yog kev txhim kho tsis raug. Nyob rau hauv phaj kub exchangers, gasket tsis ua hauj lwm yog ib qho tshwm sim, uas tuaj yeem tshwm sim los ntawm kev laus, dhau - nruj, los yog tshuaj tua kab mob los ntawm cov kua dej. Kev xau tuaj yeem ua rau muaj kev sib kis ntawm ob lub kua dej, uas yog ib qho teeb meem loj, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov khoom purity yog qhov tseem ceeb, xws li hauv kev lag luam tshuaj. Tsis tas li ntawd, cov dej xau tuaj yeem ua rau poob ntawm cov kua dej muaj txiaj ntsig, ua rau poob nyiaj txiag.
Corrosion
Corrosion yog lwm qhov teeb meem tseem ceeb uas cuam tshuam rau lub neej ntev thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob. Ntau hom kev xeb tuaj yeem tshwm sim, suav nrog kev txhim kho corrosion, pitting corrosion, thiab crevice corrosion. Uniform corrosion tshwm sim thaum tag nrho saum npoo ntawm cov hlau raug tawm tsam sib npaug los ntawm qhov nruab nrab corrosive. Pitting corrosion, ntawm qhov tod tes, yog tus cwj pwm los ntawm kev tsim cov me me, qhov tob tob ntawm cov hlau nto. Crevice corrosion feem ntau tshwm sim nyob rau hauv qhov chaw uas muaj qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Corrosion tsis muaj zog rau cov qauv kev ncaj ncees ntawm cov khoom siv hluav taws xob, ua rau muaj kev pheej hmoo ntawm kev xau thiab thaum kawg ua rau cov khoom siv tsis ua haujlwm.
Tube Thaiv
Nyob rau hauv lub plhaub - thiab - lub raj cua kub exchangers, lub raj blockage tuaj yeem tshwm sim vim muaj cov khoom khib nyiab, cov khoom loj, lossis cov khoom muaj zog hauv cov raj. Qhov no txwv tsis pub cov kua dej ntws los ntawm cov hlab ntsha, txo qhov kub hloov chaw thiab kev ua haujlwm zoo. Tube blockage kuj tuaj yeem ua rau tsis sib xws ntawm cov raj xa dej, ua rau cov chaw kub thiab ua kom nrawm dua qhov degradation ntawm cov khoom siv hluav taws xob.
Txo cov cua sov hloov ua haujlwm
Txawm tias tsis muaj qhov pom tseeb fouling, to, los yog blockage, lub tshav kub hloov efficiency ntawm lub tshav kub exchanger yuav maj mam txo lub sij hawm. Qhov no tuaj yeem yog vim muaj cov yam ntxwv xws li kev hloov pauv ntawm cov kua dej (piv txwv li, viscosity, thermal conductivity), tus nqi ntws tsis zoo, lossis kev poob qis hauv thermal conductivity ntawm cov khoom siv hluav taws xob hloov mus rau nws tus kheej vim yog lub sij hawm ntev rau qhov kub thiab txias los yog corrosive ib puag ncig.
Tshawb nrhiav thiab kuaj cov teeb meem kub Exchanger
Kev ntsuas kub thiab siab ntsuas
Kev soj ntsuam cov qhov hluav taws xob thiab qhov hluav taws xob kub thiab qhov kub thiab txias yog ib txoj hauv kev yooj yim tshaj plaws los xyuas cov teeb meem ntawm kev sib hloov cua sov. Ib qho tseem ceeb ntawm qhov kub ntawm qhov sib txawv ntawm qhov nkag thiab qhov hluav taws xob ntawm cov kua dej kub los yog qhov sib txawv ntawm qhov kub thiab txias ntawm cov kua dej txias yuav qhia tau tias qhov txo qis hauv kev hloov hluav taws xob, uas tuaj yeem tshwm sim los ntawm fouling los yog lub raj thaiv. Ib yam li ntawd, ib qho kev poob siab tam sim ntawd thoob plaws lub tshuab hluav taws xob tuaj yeem qhia txog kev xau, thaum qhov kev nce siab hauv siab tuaj yeem yog vim muaj kev thaiv los yog ntau dhau fouling. Piv txwv li, nyob rau hauv lub phaj kub exchanger siv nyob rau hauv lub tub yees system, yog hais tias qhov kub thiab txias ntawm lub tub yees tawm hauv lub tshav kub exchanger yog siab tshaj li ib txwm thiab lub siab poob nyob rau hauv lub tshav kub exchanger tau nce, nws yuav muaj ib co fouling los yog blockage nyob rau hauv lub tshav kub exchanger.
Kev tshuaj xyuas qhov muag
Kev kuaj pom tsis tu ncua tuaj yeem qhia ntau yam teeb meem pom tseeb. Rau lub plhaub - thiab - lub raj cua kub exchangers, tshuaj xyuas lub sab nraud ntawm lub plhaub rau cov cim qhia ntawm to, xws li cov chaw ntub dej los yog corrosion, yog qhov tseem ceeb. Nyob rau hauv lub phaj kub exchangers, xyuas cov gaskets rau cov tsos mob ntawm kev puas tsuaj, xws li cov kab nrib pleb los yog o, yuav pab tau kom nrhiav tau cov teeb meem to. Kev kuaj pom pom kuj tuaj yeem txheeb xyuas qhov corrosion sab nraud ntawm lub tshav kub exchanger qhov chaw, uas tej zaum yuav qhia tau tias muaj teeb meem loj dua. Txawm li cas los xij, kev tshuaj xyuas qhov muag muaj nws cov kev txwv, vim nws tsis tuaj yeem kuaj pom cov fouling sab hauv lossis txhaws hauv cov hlab lossis cov channel yam tsis muaj kev cuam tshuam.
Flow Rate Monitoring
Saib xyuas tus nqi ntws ntawm cov kua los ntawm qhovkub exchangertuaj yeem muab cov ntaub ntawv tseem ceeb. Ib qho tseem ceeb sib txawv los ntawm tus nqi ntws ib txwm yuav qhia tau tias muaj kev thaiv, xau, lossis teeb meem nrog lub tshuab nqus dej. Los ntawm kev sib piv cov ntsuas ntsuas nrog tus nqi tsim, cov neeg ua haujlwm tuaj yeem txheeb xyuas cov teeb meem tshwm sim thaum ntxov. Piv txwv li, yog tias tus nqi ntws ntawm cov kua dej txias hauv lub plhaub - thiab - lub raj kub hloov pauv qis dua li qhov xav tau, nws tuaj yeem yog vim lub raj thaiv lossis teeb meem nrog lub valve lossis lub twj tso kua mis.
Tshuaj ntsuam xyuas
Kev tshuaj ntsuam xyuas cov kua dej tuaj yeem pab tshawb xyuas qhov muaj cov kab mob uas yuav ua rau fouling lossis corrosion. Kev tshuaj xyuas tus nqi pH, cov ntsiab lus yaj yaj, thiab muaj cov tshuaj tshwj xeeb hauv cov kua dej tuaj yeem muab kev nkag siab txog qhov xwm txheej ntawm cov khoom siv hluav taws xob. Piv txwv li, qhov siab ntawm calcium thiab magnesium ions nyob rau hauv dej - raws li cov kua dej ntawm lub tshav kub exchanger yuav qhia tau hais tias muaj peev xwm rau scale tsim. Tsis tas li ntawd, kev tshuaj xyuas cov kua dej rau qhov muaj cov hlau ions tuaj yeem pab txheeb xyuas corrosion, vim tias qhov tso tawm ntawm cov hlau ions mus rau hauv cov kua dej yog ib qho cim ntawm cov hlau degradation.
Kev kuaj tsis yog kev puas tsuaj (NDT)
Cov txheej txheem tsis muaj kev puas tsuaj, xws li Dye penetration testing, ultrasonic test, eddy tam sim no testing, thiab radiographic testing, tuaj yeem siv los xyuas cov teeb meem sab hauv hauv cov khoom siv hluav taws xob tsis ua rau cov khoom puas. Kev kuaj ultrasonic tuaj yeem siv los ntsuas qhov tuab ntawm cov phab ntsa hlau ntawm cov khoom siv hluav taws xob, uas tuaj yeem pab txheeb xyuas qhov corrosion. Eddy kev ntsuam xyuas tam sim no muaj txiaj ntsig zoo hauv kev txheeb xyuas qhov tsis zoo hauv cov raj ntawm lub plhaub - thiab - lub raj cua sov hloov pauv, xws li tawg lossis thinning. Kev ntsuam xyuas hluav taws xob tuaj yeem muab cov duab ntxaws ntxaws ntawm cov qauv sab hauv ntawm cov khoom siv hluav taws xob, tso cai rau kev tshawb nrhiav cov blockages lossis lwm yam kev tsis txaus ntseeg sab hauv.
Ntxuav Thaum tshav kub kub Exchangers
Kho tshuab ntxuav
Mechanical tu txoj kev koom nrog lub cev tshem tawm cov fouling tshuaj los ntawm tshav kub hloov chaw. Rau lub plhaub - thiab - raj kub exchangers, raj - ntxuav txhuam, scrapers, los yog siab - siab-siab dav hlau dej yuav siv tau. Tube - txhuam txhuam tau muab tso rau hauv cov raj thiab tig los txhuam cov fouling. Cov dav hlau dej siab siab, feem ntau nrog cov siab ntawm 1000 txog 5000 psi, tuaj yeem tshem tawm cov nplai thiab cov khib nyiab zoo. Nyob rau hauv lub phaj kub exchangers, daim hlau yuav disassembled, thiab qhov chaw yuav ntxuav manually siv txhuam thiab detergents. Kev tu neeg kho tshuab yog ib txoj hauv kev yooj yim thiab siv tau zoo rau kev tshem tawm ntau hom fouling, tab sis nws yuav tsis haum rau cov khoom siv hluav taws xob zoo heev los yog tshem tawm nyuaj - mus txog fouling hauv complex geometries.
Tshuaj ntxuav
Kev ntxuav tshuaj yog siv cov tshuaj tua kab mob kom yaj lossis ua rau cov tshuaj fouling. Cov tshuaj ntxuav cov tshuaj muaj xws li cov kua qaub (xws li hydrochloric acid, citric acid), alkalis (xws li sodium hydroxide), thiab cov tshuaj ntxuav tes. Piv txwv li, cov kua qaub muaj txiaj ntsig zoo hauv cov nplais tsim los ntawm cov hlau carbonates thiab hydroxides. Txawm li cas los xij, thaum siv cov kua qaub, nws yog ib qho tseem ceeb kom ua tib zoo tswj cov concentration, kub, thiab lub sij hawm raug kom tsis txhob ua rau cov hlau nto ntawm lub tshav kub exchanger. Alkaline ntxuav feem ntau yog siv los tshem tawm cov organic fouling, xws li roj thiab roj. Kev tu tshuaj tuaj yeem ua tau zoo dua li kev tu txhua yam hauv kev tshem tawm txoj haujlwm lossis kev sib sib zog nqus - zaum fouling, tab sis nws yuav tsum tau tuav cov tshuaj kom zoo kom muaj kev nyab xeeb thiab kev ua raws li ib puag ncig.
Kev ntxuav hauv online
Txoj kev ntxuav hauv online tso cai rau lub tshav kub hloov pauv kom huv thaum nws tseem ua haujlwm. Ib txoj hauv kev tu hauv online yog kev siv tus kheej tu cov khoom siv hluav taws xob, uas tau tsim - hauv cov txheej txheem kom tsis tu ncua tshem tawm fouling. Piv txwv li, qee cov khoom siv hluav taws xob sib txuas yog tsim los nrog kev ua haujlwm tu tus kheej, qhov chaw ntws ntawm cov kua ua rau cov phaj vibrate me ntsis, tiv thaiv qhov sib txuam ntawm fouling. Lwm txoj hauv kev tu hauv online yog kev txhaj tshuaj ntawm cov tshuaj ntxuav hauv cov kua dej. Txoj kev no tsim nyog rau cov ntawv thov uas tsis tuaj yeem siv sijhawm poob qis, tab sis nws yuav tsis zoo li kev ntxuav offline rau cov mob fouling hnyav.
Kev tu cov cua sov Exchangers
Kev tshuaj xyuas tsis tu ncua
Kev tshuaj xyuas tsis tu ncua, raws li tau piav qhia hauv ntu kev kuaj pom thiab kuaj mob, yuav tsum tau ua raws li lub sijhawm teem tseg. Qhov zaus ntawm kev tshuaj xyuas yog nyob ntawm qhov kev ua haujlwm thiab qhov tseem ceeb ntawm cov khoom siv hluav taws xob. Rau cov khoom siv hluav taws xob ua haujlwm hauv qhov chaw hnyav lossis tuav cov kua dej corrosive, yuav tsum tau kuaj xyuas ntau zaus. Los ntawm kev txheeb xyuas cov teeb meem thaum ntxov los ntawm kev tshuaj xyuas tsis tu ncua, kev kho tus nqi qis thiab kev poob qis tuaj yeem zam tau.
Kev hloov cov khoom hnav-tawm
Nyob rau tib lub sijhawm, cov khoom siv ntawm cov khoom siv hluav taws xob xws li gaskets hauv cov phaj kub hloov pauv, cov raj hauv lub plhaub - thiab - lub raj kub hloov pauv, thiab cov ntsaws ruaj ruaj, tuaj yeem hnav lossis puas. Cov Cheebtsam no yuav tsum tau hloov tam sim ntawd kom tsis txhob muaj cov pa tawm thiab ua kom muaj kev ua haujlwm zoo ntawm cov khoom siv hluav taws xob. Thaum hloov cov khoom siv, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov khoom uas ua tau raws li cov khoom siv thawj cov chaw tsim khoom tshwj xeeb kom ntseeg tau tias muaj kev sib raug zoo thiab kev ua haujlwm.
Kev tiv thaiv corrosion
Txhawm rau tiv thaiv corrosion, ntau yam kev tiv thaiv corrosion tuaj yeem ua. Cov no suav nrog kev siv cov khoom siv corrosion-resistant, xws li cov hlau tsis muaj steel lossis titanium, rau kev tsim kho cua sov. Tsis tas li ntawd, siv cov txheej txheem tiv thaiv, xws li epoxy coatings los yog zinc-raws li txheej, rau cov hlau nto tuaj yeem muab cov txheej txheem tiv thaiv ntxiv. Cathodic kev tiv thaiv txoj kev, xws li kev txi anodes los yog impressed tam sim no systems, kuj yuav siv tau los tiv thaiv lub tshav kub exchanger los ntawm corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas corrosion yog ib qho kev txhawj xeeb tseem ceeb.
Kev kho kua dej
Kev kho cov kua dej ua ntej lawv nkag mus rau hauv cov khoom siv hluav taws xob tuaj yeem pab tiv thaiv fouling thiab corrosion. Rau cov dej-raws li cov kua dej, cov txheej txheem kev kho dej, xws li softening, demineralization, thiab ntxiv ntawm corrosion inhibitors thiab antiscalants, tuaj yeem siv. Softening tshem tawm calcium thiab magnesium ions los ntawm cov dej, txo cov peev xwm rau scale tsim. Demineralization tshem tawm tag nrho cov ntxhia hauv yaj, muab cov dej ntshiab heev. Corrosion inhibitors thiab antiscalants yog cov tshuaj uas tau ntxiv rau hauv cov kua dej los tiv thaiv corrosion thiab scale tsim, feem. Los ntawm kev kho cov kua dej kom zoo, lub neej ntev ntawm cov khoom siv hluav taws xob tuaj yeem txuas ntxiv, thiab nws cov kev ua tau zoo tuaj yeem tswj tau.
Kev cob qhia cov neeg ua haujlwm
Kev cob qhia cov neeg ua haujlwm kom raug yog qhov tseem ceeb rau kev saib xyuas cov khoom siv hluav taws xob zoo. Cov neeg ua haujlwm yuav tsum tau kawm txog yuav ua li cas los saib xyuas cov khoom siv hluav taws xob ua haujlwm, tshawb xyuas cov teeb meem uas yuav tshwm sim, thiab ua cov haujlwm tseem ceeb ntawm kev saib xyuas, xws li kev tshuaj xyuas qhov muag thiab cov txheej txheem tu yooj yim. Lawv kuj yuav tsum paub txog cov txheej txheem kev nyab xeeb uas cuam tshuam txog kev tuav cov tshuaj thiab ua haujlwm ntawm cov khoom siv hluav taws xob. Cov neeg ua haujlwm tau txais kev cob qhia zoo tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua kom ntseeg tau lub sijhawm ntev thiab kev ua haujlwm zoo ntawm cov khoom siv hluav taws xob.
Xaus
Thaum tshav kub kub exchangers yog qhov tseem ceeb ntawm cov cuab yeej siv hauv ntau cov txheej txheem kev lag luam. Kev nkag siab txog kev ua haujlwm tsis zoo, xws li fouling, to, corrosion, tube blockage, thiab txo cov cua sov hloov ua haujlwm, nrog rau cov txheej txheem rau kev kuaj xyuas thiab kuaj cov teeb meem no, yog thawj kauj ruam hauv kev tswj xyuas lawv cov kev ua tau zoo. Kev tu kom zoo, suav nrog kev siv tshuab, tshuaj lom neeg, thiab kev tu hauv online, tuaj yeem pab rov qab ua kom cov cua sov hloov pauv ntawm cov khoom siv hluav taws xob. Kev saib xyuas tsis tu ncua, xws li kev tshuaj xyuas, kev hloov khoom siv, kev tiv thaiv corrosion, kev kho dej, thiab kev cob qhia tus neeg ua haujlwm, yog qhov tseem ceeb rau kev ua kom ntseeg tau ntev thiab ua haujlwm zoo ntawm cov khoom siv hluav taws xob. Los ntawm kev siv cov kev daws teeb meem zoo, tu, thiab tu cov tswv yim, kev lag luam tuaj yeem txo qis qis, txo cov nqi khiav lag luam, thiab ua kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm lawv cov khoom siv hluav taws xob.
Post lub sij hawm: Jun-17-2025