Scale Formation Mechanism & Anti-Scaling Maintenance Strategy for Water Heating Tubes
Txo cov cua kub ceev, kev siv hluav taws xob ntau ntxiv thiab kev tiv thaiv overheating ntau zaus yog cov teeb meem kev ua haujlwm ntawm cov kav dej cua sov tom qab siv ntev -. Raws li kev tsim kho kev lag luam, ntau dua 70% ntawm cov cua sov ua kom zoo attenuation faults pib los ntawm cov nplais pob zeb ntau dua li cov khoom siv hauv cov laus. Hard water mineral precipitation forms dense scale layers on tube surfaces during repeated heating cycles, forming thermal barriers that seriously hinder heat transfer and trigger continuous performance degradation.
Kev tsim cov nplai ua raws li cov cai ntawm lub cev nag lossis daus hauv cov cua sov hauv dej. Cov dej kais dej thiab dej hauv av muaj cov calcium uas yaj thiab magnesium carbonate. Thaum dej kub nce siab tshaj 55 degrees Celsius, yaj cov zaub mov poob solubility thiab precipitate rau hauv cov khoom crystalline sediments. Cov cua kub tsis tu ncua ua rau cov pob zeb ua kom nruj rau cov cua sov ntawm cov kav dej, maj mam ua cov txheej tuab thiab tawv tawv. Cov nplai loj hlob nrawm nrawm nrog cov dej hardness thiab cua sov zaus, uas qhia txog cov yam ntxwv sib xyaw ua ke hauv siab - cov dej hardness.
Scale accumululation ua rau cascading tsis zoo cuam tshuam rau cov cua sov tube kev ua tau zoo. Lub thermal conductivity ntawm dej ntsuas tsuas yog ib -nees nkaum ntawm cov ntaub ntawv hlau. Cov txheej tuab tuab ua rau cov cua sov tsim los ntawm cov hluav taws xob hauv hluav taws xob hauv hluav taws xob kom tsis txhob hloov pauv mus rau cov dej nruab nrab, uas ua rau muaj cua sov sab hauv thiab lub raj phab ntsa overheating. Ntev -lub sij hawm overheating accelerates hluav taws xob cua sov hlau aging thiab rwb thaiv tsev txheej degradation, ua rau kom muaj kev pheej hmoo thiab shortening cov cuab yeej siv lub neej. Lub caij no, qhov ntsuas -cov kav cua kub npog yuav tsum tau ua haujlwm ntev dua kom ncav cuag qhov kub thiab txias, ua rau tsis siv hluav taws xob pov tseg thiab nce nqi ua haujlwm.
Kev saib xyuas kev tshawb fawb tsis tu ncua ua rau muaj txiaj ntsig zoo tiv thaiv kev phom sij yam tsis muaj kev puas tsuaj rau cov khoom siv. Kev tu lub cev tsis tu ncua txais kev siab siab - cov dej ntws tawm thiab cov nplais mos kom tshem tawm cov nplais xoob, haum rau kev tu txhua hnub. Khoom noj khoom haus-qib acid ntxuav dissolves tawv tawv nplaig rau kev kho kom zoo ntawm cov raj thermal conductivity, yuav tsum tau nruj nruj concentration thiab lub sij hawm tswj kom tsis txhob hlau sheath corrosion. Pab dej softening khoom installation fundamentally txo cov ntxhia hauv cov ntsiab lus thiab inhibits tshiab scale tiam los ntawm qhov chaw.
Cov ntaub ntawv hloov pauv ntawm cov kav dej cua sov hauv qab qhov sib txawv qhov tuab yog txheeb hauv cov lus hauv qab no:
|
Scale Thickness |
Tus txheeb ze Thermal Conductivity |
Dej Kub Lub Sijhawm Extension |
Kev siv hluav taws xob nce tus nqi |
Component Kev laus Acceleration |
|---|---|---|---|---|
|
0mm Lub cev huv |
100% standard efficiency |
0% txheem cua sov ceev |
0% ib txwm siv hluav taws xob |
Lub voj voog kev laus li qub |
|
0.5mm Thin Scale |
83% txo efficiency |
12% qeeb cua sov |
10% nce noj |
15% ceev kev laus |
|
1.0mm Medium Scale |
65% hnyav attenuation |
28% qeeb cua sov |
22% nce noj |
35% ceev kev laus |
|
2.0mm + Thickness Scale |
42% siab heev attenuation |
45% qeeb cua sov |
38% nce noj |
60% ceev aging & burnout txaus ntshai |
Ntev- cov ntaub ntawv saib xyuas lub sij hawm qhia tau hais tias cov kav dej cua sov nrog cov txheej txheem peb lub hlis twg los tiv thaiv- kev ntsuas kev tu kom ruaj khov ua kom muaj cua sov zoo rau ntau tshaj 4 xyoo, thaum cov kav dej tsis tu ncua ntsib kev ua haujlwm tsis zoo hauv 1 xyoos. Kev tiv thaiv - kev tswj qhov ntsuas qhov ntsuas yog tus nqi tshaj plaws - txhais tau tias ua kom cov cuab yeej siv tau ntev.
Cov txheej txheem kev tswj xyuas cov cua sov ua haujlwm tuaj yeem tsim cov txheej txheem tu lub voj voog tshwj xeeb thiab ua kom zoo sib xws raws li cov dej hardness hauv zos thiab cov khoom siv ua haujlwm hnyav, tuav ntev - lub sij hawm siab - kev ua haujlwm ntawm cov kav dej cua sov.
