Phaj kub exchanger nyob rau hauv lub lag luam ntawm kev siv lub sij hawm yuav tshwm sim scaling teeb meem, ces, koj puas to taub vim li cas tom qab qhov tshwm sim? Cov hauv qab no yog ib qho kev piav qhia luv luv ntawm kev phom sij ntawm kev ntsuas los ntawm kuv, kev tsim ntawm 6 hom txheej txheem scaling thiab kev tiv thaiv kev tiv thaiv kev ntsuas.
Rau qhov phom sij ntawm phaj kub exchanger scaling
Phaj tshav kub exchanger yog dav siv nyob rau hauv industrial thiab civil teb, thiab nws txoj kev ua hauj lwm yog los pauv cov cua sov los ntawm qhov kub ntawm qhov sib txawv ntawm cov phaj. Txawm li cas los xij, nyob rau hauv tus txheej txheem ntawm kev siv, vim muaj teeb meem dej tsis zoo los yog cov khoom siv nyob rau hauv cov kua nruab nrab, cov deposits yuav raug tsim ntawm daim hlau, piv txwv li scaling. Yog tias tsis ntxuav lub sijhawm, qhov ntsuas yuav ua rau muaj kev phom sij hauv qab no:
1. Txo cov hluav taws xob hloov hluav taws xob:
Scaling yuav tsim ib txheej ntawm rwb thaiv tsev, cuam tshuam kev hloov hluav taws xob, ua rau txo qis hauv kev hloov hluav taws xob, cuam tshuam rau kev ua haujlwm ntawm cov khoom siv.
2. Kev nce siab poob:
Scaling ua rau cov kua channel nqaim, ntws tsis kam nce, uas ua rau muaj zog noj ntawm lub twj tso kua mis, lub zog poob siab nce.
3. Txo cov khoom siv lub neej:
Lub sij hawm ntev scaling yuav ua rau kom cov laus ntawm cov khoom siv, corrosion phaj, txo cov kev pab cuam lub neej ntawm cov cuab yeej.
4. Cov nqi khiav lag luam nce ntxiv:
Thaum tshav kub kub hloov efficiency txo thiab kev siv hluav taws xob nce, tuam txhab uas muag yuav tsum tau nqis peev ntau zog thiab nyiaj txiag kom tswj tau qhov qub kub hloov pauv.
5. Txo qhov kev nyab xeeb:
Fouling tej zaum yuav ua rau lub zos overheating ntawm cov khoom, ua rau muaj kev nyab xeeb xwm txheej.
6. Ntau tus nqi tu:
Kev ntsuas hnyav tuaj yeem xav tau ntau zaus downtime rau kev tu, ua kom cov nqi tu thiab ncua sijhawm.
Rau lub ntsiab hom phaj kub exchanger fouling txheej txheem
Plate heat exchangers tuaj yeem tsim ntau hom kev ntsuas thaum lub sijhawm ua haujlwm, uas yog tsim los ntawm cov khoom sib txawv thiab cov txheej txheem. Cov hauv qab no yog 6 lub ntsiab ntawm cov txheej txheem scaling:
1. Crystallization fouling:
Feem ntau yog los ntawm sulfate, carbonate thiab silicate thiab lwm cov ntsev yaj hauv cov txheej txheem ntws vim qhov qis ntawm qhov kub ntawm qhov kub ua rau kev daws teeb meem oversaturation, thiaj li ua rau nag lossis daus hauv lub tshav kub exchanger tube phab ntsa los tsim cov khoom nruj nreem fouling. Kev tsim ntawm qhov fouling no feem ntau yuav tsum muaj ob kauj ruam tseem ceeb: kev thauj cov ions los ntawm cov kua dej ntau mus rau qhov chaw nyob ze, thiab txuas ntawm fouling rau cov khoom siv nto. Lub ntsiab tseem ceeb cuam tshuam rau nag lossis daus fouling yog qib ntawm supersaturation ntawm cov tshuaj
2. Biofouling:
Cov kab mob xws li cov kab mob, cov kab mob, thiab cov algae hauv cov dej hiav txwv uas tsis tau kho, cov dej ntws los yog cov dej hauv pas dej yuav tsim fouling tom qab txuas rau thiab tso rau ntawm cov yeeb nkab phab ntsa saum npoo raws li txoj cai. Qhov no zoo li zaj duab xis txheej ntawm mos sludge impedes tshav kub hloov thiab tsim tej yam kev mob rau lub deposition ntawm nplua particulate teeb meem thiab inorganic ntsev. Microorganisms ntawm ntau yam, tenacious, ceev ceev yug me nyuam ceev thiab dav tis, rau cov yam ntxwv ntawm lom scaling nyob rau hauv lub tshav kub exchanger thiab descaling technology tau coj teeb meem ntau dua.
3. Corrosion scaling:
Nyob rau hauv tus txheej txheem ntawm kev siv, lub tshav kub exchanger nto tshuaj corrosion, uas ua deposits rau fouling. Corrosion fouling yog ib qho yooj yim heev rau flushed los ntawm cov kua ntws, ua rau phab ntsa thickness thinning to, zoo heev. Corrosion feem ntau suav nrog tshuaj corrosion thiab electrochemical corrosion
4. Particle fouling:
Los ntawm insoluble impurity hais, heterogeneous nucleation hais, homogeneous nucleation hais thiab tshav kub exchanger phab ntsa stripping hais, lub ntiajteb txawj nqus thiab kev sib tsoo nyob rau hauv qhov kev txiav txim ntawm txuas mus rau lub tshav kub exchanger nto los tsim ib txheej ntawm cov khoom deposits. Particle fouling adhesion yog me me, concentrated nyob rau hauv lub laminar ntws cheeb tsam ntawm phab ntsa, thiab yooj yim mus sau nyob rau hauv lub nto roughness. Particle fouling deposits yuav nce tus naj npawb ntawm nucleation cov ntsiab lus ntawm crystallization scaling, txhawb lub tshav kub exchanger nto nag lossis daus crystallization fouling, tab sis kuj ua rau lub lom aggregation, kev loj hlob thiab kev loj hlob, tsim ntawm lom fouling, particle fouling los txhawb ntau yam fouling coexist, nruj thiab nyuaj rau tshem tawm.
5. Tshuaj tiv thaiv fouling:
Cov tshuaj muaj pes tsawg leeg ntawm cov kua nyob rau hauv lub tshav kub exchanger internal cov tshuaj tiv thaiv, tsim ntawm deposits.
6. Solidification fouling:
Nyob rau hauv lub tshav kub exchanger, tej yam kua Cheebtsam solidify vim kub hloov, ua fouling.
Phaj tshav kub exchanger tiv thaiv thiab kev kho mob ntawm scaling ntawm rau kev ntsuas
Raws li rau lub ntsiab ntawm cov txheej txheem fouling nyob rau hauv phaj kub exchanger kev khiav hauj lwm, cov kev ntsuas hauv qab no tuaj yeem raug coj los tiv thaiv thiab kho:
1. Kev tu lub sijhawm:
Tsim kom muaj ib qho kev tu ncua thiab siv cov tshuaj los yog cov tshuab ntxuav kom tshem tawm cov av thiab cov khoom tso rau ntawm daim hlau.
2. Kev Tswj Xyuas Dej Zoo:
Kev kho kom zoo ntawm cov dej ntws, xws li softening, desalting, thiab sterilizing, kom txo tau yaj cov khib nyiab thiab cov ntsiab lus microbial hauv dej.
3. Kev siv cov nplai inhibitors:
Ntxiv qhov tsim nyog tus nqi ntawm scale inhibitor rau cov dej circulating tiv thaiv kev tsim ntawm precipitated crystalline fouling thiab txo qhov yuav ua rau scaling.
4. Kev tswj tus nqi ntws thiab kub:
Tsim nyog tswj tus nqi ntws thiab kub ntawm cov kua dej, kom tsis txhob muaj cov teeb meem nyob rau hauv cov kua tso rau ntawm qhov chaw ntawm lub tshav kub exchanger, thaum txo cov tshuaj tiv thaiv los ntawm kub hloov nyob rau hauv fouling thiab solidification ntawm fouling.
5. Kev tshuaj xyuas thiab kev saib xyuas ib ntus:
Tsis tu ncua xyuas cov kev khiav hauj lwm ntawm lub tshav kub exchanger, nrog rau lub siab, kub, txaus tus nqi thiab lwm yam tsis, raws li zoo raws li cov kev hloov nyob rau hauv lub tshav kub hloov efficiency, raws sij hawm nrhiav thiab kho cov teeb meem.
6. Lim thiab kho ua ntej:
Lim thiab ua ntej kho cov kua ua ntej nws nkag mus rau hauv lub tshav kub exchanger kom tshem tawm cov hais thiab impurities nyob rau hauv nws thiab txo qhov tsim ntawm particle fouling.
7. Optimized Tsim:
Ua kom zoo rau kev tsim cov khoom siv hluav taws xob, xws li kev ua kom huv ntawm txoj kev ntws, txo qhov chaw tuag, siv cov txheej txheem yooj yim-rau-huv, thiab xaiv cov khoom siv tiv thaiv corrosion los txo qhov kev pheej hmoo ntawm scaling.
Los ntawm cov kev ntsuas no, qhov teeb meem scaling ntawm phaj kub exchanger hauv kev ua haujlwm tuaj yeem tiv thaiv tau zoo thiab txo kom ntseeg tau tias kev ua haujlwm zoo thiab kev nyab xeeb ntawm cov khoom siv hluav taws xob.
