Kev tsom xam ntawm cov ntsuas kev ntsuas
1. Cawv ntawm cov tshuaj muaj pes tsawg leeg
Qhov laj thawj tseem ceeb rau scaling yog lub xub ntiag (xws li calce, magnesium, thiab lwm yam) thiab itions, carbonate, thiab lwm yam) hauv brine.
Cov tebchaw tsim los ntawm cov ions, calcium sulfate, sodium sulfate, sodium vloride, yuav mus txog ib lub xeev supersaturated thiab crystallize nyob rau qee yam.
Tshwj xeeb tshaj yog nyob rau hauv lub raj cua sov thiab sab hauv phab ntsa ntawm lub vev xaib evaporation, ib txheej sib cav yog tsim. Piv txwv li, calcium sulfate muaj kev tsis zoo rau solubility tus yam ntxwv, uas yog thaum qhov kub tshaj 40 degree, nws solubility txo qis nrog kev nce kub.
Yog li ntawd, thaum lub sij hawm cov txheej txheem cua sov, calcium sulfate yog yooj yim rau crystallize thiab precipitate thiab precipaly thiab precipitate rau saum npoo ntawm cov khoom siv.
2. Cawv ntawm qhov kub hloov
Cov nyhuv ntawm kev hloov kub ntawm kev ntsuas yog qhov tseem ceeb tshaj plaws. Raws li qhov ntsuas kub nce ntxiv, lub solubility ntawm qee cov ntsev kom tsawg, ua rau lawv ua kom precipitate los ntawm kev daws thiab tso nyiaj rau saum npoo ntawm cov khoom siv.
Ib qho ntxiv, cov kev hloov pauv hloov kuj tseem tuaj yeem ua rau superstaturation hauv zos, ntxiv exacerbating tshwm sim ntawm kev sib cav. Tshwj xeeb tshaj yog thaum lub Evaporation cov txheej txheem, kev hloov pauv sai sai tuaj yeem ua rau cov ntsev nrawm hauv kev daws teeb meem, sib sau ua cov txheej txheem nyuaj.
3. Tus cuam tshuam ntawm kev ua haujlwm
Kev ua haujlwm tsis raug cai kuj tseem yog ib qho ntawm cov tseem ceeb ua rau kev ntsuas. Piv txwv li, thaum theem tsis tseeb, cov kua dej tsawg dua thaum lub raj cua kub uas yuav tsum tau rhaub dej kub ntawm lub raj cua sov vim muaj cov kua kub zoo li qub.
Qhov kev npau taws no tsis zoo no yuav ua rau lub crystallization ntawm cov ntsev thiab tsim cov txheej txheem nplai ntawm phab ntsa sab hauv ntawm lub raj cua sov. Ib qho ntxiv, cov kev hloov nquag nquag hloov pauv cov kev ua haujlwm tseem yuav ua rau lub system tsis ruaj khov thiab nce kev pheej hmoo ntawm kev ntsuas.
Cov hau kev xav tau thiab kev siv tau
Rau ntau hom ntawm cov nplai sib tw, nws yog qhov tseem ceeb los xaiv txoj cai descaling txoj kev. Cov hauv qab no yog ntau txoj kev xav tau thiab lawv cov txiaj ntsig ntawm daim ntawv thov:
1. Dej-soluble txujcib
Lub hauv paus ntsiab lus: Siv tau rau kev tshem tawm cov dej-soluble nplai nplai lossis teev txheej sib xyaw nrog cov dej loj-soluble cov khoom. Lub hom phiaj ntawm descaling yog tiav los ntawm discolving cov dej-soluble cov khoom hauv cov nplai txheej nrog dej.
Muaj cov khoom siv: xws li sodium sulfate, sodium chloride, thiab lwm yam.
Cov kauj ruam lag luam: txhaj ib qho nyiaj uas tsim nyog rau hauv cov khoom siv thiab ua kom sov nws kom ua kom muaj kev cuam tshuam rau solubility thiab ua kom sai li ua kom muaj kev sib cais. Tom qab ib lub sijhawm ntawm kev ncig ntxuav, tawm cov kua uas muaj cov txheej txheej yaj tau yaj.
Cov txiaj ntsig zoo: kev ua haujlwm yooj yim thiab tus nqi qis. Qhov tsis zoo: Cov nyhuv tsawg rau ntawm cov nplai dej-soluble nplai nplai.
2. Acid pickling txoj kev
Lub hauv paus ntsiab lus: Siv tau rau kev tshem tawm ntawm cov carbonate nplai txheej lossis teev txheej sib xyaw nrog cov roj carbonate loj. Siv cov kua qaub kom hnov mob nrog cov tshuaj carbonate kom tsim cov khoom siv soluble, yog li ua tiav lub hom phiaj ntawm kev xav.
Muaj cov khoom siv: xws li calcium carbonate, magnesium carbonate, thiab lwm yam.
Cov kauj ruam ua haujlwm: Npaj cov tshuaj muaj roj nrog rau ntawm 1% rau 3% (nws tuaj yeem nce mus rau 5% thaum txheej teev txheej yog tuab). Txhaj tshuaj rau cov khoom siv, ncig nws thiab ntxuav nws, thiab xyuam xim kom tiv thaiv npuas los ntawm kev txhaws ntswg thiab cais cov sedimenting hauv lub sijhawm. Tom qab pickling, neutralize nrog dilute alkali daws lossis ntxuav nrog dej tshiab los tiv thaiv kev puas tsuaj rau cov khoom siv.
Cov txiaj ntsig: Cov nyhuv zoo descaling, tshwj xeeb tshaj yog haum rau cov roj teeb teev. Qhov tsis zoo: Muaj qee qhov kev pheej hmoo ntawm corrosion rau cov cuab yeej siv, yog li nws yuav tsum tau ua haujlwm nrog kev ceev faj.
3. Alkali npau npau npau npau
Lub hauv paus ntsiab lus: haum rau tshem tawm insoluble nplai nplai xws li calcium sulfate thiab strontium sulfate. Ua ntej, siv cov alkali daws kom hloov instoluble sulfates rau hauv cov tshuab soluble, thiab tom qab ntawd siv cov tshuaj uas muaj cov tshuaj tua cov roj.
Muaj cov khoom siv: xws li calcium sulfate, thiab lwm yam.
Cov kauj ruam ua haujlwm:
Npaj cov tshuaj soda nrog lub concentration ntawm 3% mus rau 5%, thiab ncig saib thiab ntxuav nws nyob rau hauv cov cua sov. Tom qab cov tshuaj tiv thaiv tshuaj tshwm sim, txuas ntxiv mus ncig ua si thiab huv si nrog pickling daws teeb meem kom tshem tawm cov roj carbon ntau. Thaum kawg, yaug nrog dej tshiab.
Cov txiaj ntsig: Nws tuaj yeem tshem tawm insoluble sulfate nplai txheej. Qhov tsis zoo: Cov haujlwm yog qhov nyuaj thiab siv sijhawm ntau.
4. Neeg kho tshuab descaling txoj kev
Lub hauv paus ntsiab lus: Scrape lossis tshem tawm cov nplai teev rau saum npoo ntawm cov khoom siv los ntawm lub cev. Siv cov yeeb nkab tshwj xeeb tsim cov tshuab ntxhua khaub ncaws kom ua cov riam riam scraping nrog dej ntws
Muaj cov khoom siv: ntau hom kev co nplai, tab sis tsis haum rau tooj liab, tooj liab-nickel thiab titanium hlab kom tsis txhob muaj cov kav dej ua kom puas tsuaj.
Cov kauj ruam ua haujlwm: Siv cov cuab yeej tshwj xeeb rau kev siv tshuab scraping. Huv huv cov seem.
Cov txiaj ntsig: Tus nqi qis, haum rau cov khoom siv steel hlau. Qhov tsis zoo: Tsis tiav kev xav thiab yuav ua rau kev puas tsuaj ntawm cov khoom siv.
5. Cov dej siab tu tshuab
Lub hauv paus ntsiab lus: Siv cov dav hlau dej siab los cuam tshuam rau cov nplai txheej ntawm cov khoom, plam nws thiab nqa nws kom deb ntawm cov dej ntws.
Muaj cov khoom siv: ntau hom kev teev tseg.
Cov kauj ruam lag luam: Siv phom dej hauv dej siab los yaug cov pa taws. Nco ntsoov tias cov dej ntws tau npog tag nrho cov cheeb tsam.
Cov txiaj ntsig zoo: kom huv huv kom huv thiab cov siab ntev ntev (ntau dua 99%. Qhov tsis zoo: nws noj ntau ntawm manepower thiab cov peev txheej thiab muaj tus nqi siab.
Cov lus qhia rau anti-ntsuas kev ntsuas
Txhawm rau kom txo qhov tshwm sim ntawm kev ntsuas, kev tiv thaiv kev tiv thaiv tuaj yeem nqa los ntawm cov hauv qab no
1. Txhim kho kev ua haujlwm zoo
Ua kom muaj lub qhov chaw nyob ruaj khov thiab ua haujlwm tsis zoo, thiab zam kev hloov pauv nrawm dua xws li kub thiab ntws. Tsis tu ncua saib xyuas thiab khaws cov cuab yeej siv los xyuas kom muaj kev ua haujlwm ib txwm ntawm txhua qhov sib xyaw ua ke thiab tiv thaiv kev tsis txaus ntseeg los ntawm cov khoom ua haujlwm tsis ua haujlwm.
2. Xaiv cov ntaub ntawv siab ua haujlwm
Rau cov cuab yeej siv thiab cov kav dej hluav taws xob uas tau nkag mus rau hauv cov khoom siv kub siab, sim siv cov khoom siv high deverant thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab anti-doluction thiab tiv thaiv kev pheej hmoo ntawm kev sib cav. Polish thiab zom cov khoom siv uas tsim nyog los txhim kho cov kev ncaj ncees thiab du thiab txo cov ntsuas phoo thiab phab ntsa nplaum.
3. Ntxiv dag zog
Ua ntej lub cev dej lwg nkag mus rau hauv evaporation thiab crystallization system, ua kom txaus los tshem tawm cov impurities, roj, thiab cov hlau hnyav los txo cov tshuaj ntawm cov tshuaj yeeb.
4. Tsis tu ncua thiab txij nkawm
Raws li kev siv cov cuab yeej siv, ua ntu zus kev ua kom muaj zog, thiab nquag siv cov txheej txheem saum toj saud los tiv thaiv kev sib tw ntau dhau ntawm cov khaubncaws sab nraud.