Hauv kev tsim kho thiab kev ua haujlwm ntawm cov chaw kho dej khib nyiab, kev tiv thaiv corrosion ntawm cov kav dej yog qhov tseem ceeb tshaj plaws. Ua tsaug rau lawv qhov tshwj xeeb corrosion-cov khoom tiv taus, cov kav hlau hlau tau dhau los ua cov khoom siv zoo tshaj plaws rau cov dej khib nyiab. Niaj hnub no, cia peb ua tib zoo saib hauv - qhov tob saib cov thev naus laus zis tiv thaiv corrosion tom qab cov kav dej hlau thiab tshawb nrhiav vim li cas lawv tau ua pov thawj zoo hauv kev kho dej khib nyiab.
Cov dej phwj tuaj yog qhov sib xyaw ua ke uas muaj ntau cov organic thiab inorganic tshuaj, nrog rau cov khoom corrosive. Txhawm rau daws cov dej tsis zoo no, cov cuab yeej tiv thaiv kev tiv thaiv sab hauv rau cov kav dej hlau yog qhov tseem ceeb. Tam sim no, feem ntau siv sab hauv kev tiv thaiv corrosion yog cov cement mortar hauv ob sab phlu. Cov ntaub ntawv no yog uniformly thov rau lub puab phab ntsa ntawm cov yeeb nkab siv ib tug centrifugal txheej txheem, tsim ib tug robust tiv thaiv txheej. Cov hauv ob sab phlu no tsis tsuas yog cais cov dej khib nyiab los ntawm cov yeeb nkab phab ntsa kom tiv thaiv corrosion, tab sis kuj txo cov dej tsis kam thiab txhim kho cov dej xa tawm. Tsis tas li ntawd, nyob ntawm seb cov dej zoo li cas, ntau hom cement mortar hauv ob sab phlu tuaj yeem xaiv tau- xws li Portland cement mortar linings lossis siab - alumina cement linings - kom tau raws li cov kev cai tiv thaiv corrosion.
Sab Nraud Corrosion Protection Technologies rau Cov Yeeb Nkab Hlau
Ntxiv nrog rau kev tiv thaiv kev tiv thaiv sab hauv, kev tiv thaiv kev tiv thaiv sab nraud rau cov kav hlau hlau yog qhov tseem ceeb sib npaug. Cov kav hlau kav dej feem ntau yog faus hauv av thiab yuav tsum tiv taus cov tshuaj corrosive hauv av nrog rau cov teebmeem ntawm ib puag ncig sab nraud. Cov txheej txheem tiv thaiv kev tiv thaiv sab nraud xws li zinc txau thiab epoxy txheej. Zinc txau tshuab siv cov khoom siv hluav taws xob ntawm zinc, ua rau cov zinc txheej corrode ua ntej hlau, yog li tiv thaiv cov yeeb nkab lub cev. Epoxy txheej ntxiv txhim kho cov yeeb nkab sab nraud corrosion kuj, tiv thaiv kev yaig los ntawm ya raws thiab oxygen hauv av. Qhov kev tiv thaiv dual - txoj kev tiv thaiv no ua rau kom ntev lub neej kev pab cuam ntawm cov kav hlau kav.
Ntxiv rau qhov paub tab thiab txhim khu kev qha corrosion-cov thev naus laus zis tiv taus, cov kav hlau hlau muaj cov yam ntxwv ua tau zoo uas haum rau kev ua haujlwm ntawm cov dej khib nyiab kho cov nroj tsuag: Ua ntej, lawv nthuav tawm cov khoom siv kho tshuab zoo, sib txuas lub zog siab nrog zoo heev toughness. Qhov no ua rau lawv muaj peev xwm tiv taus siab thiab cuam tshuam cov loads thaum lub sij hawm thauj cov dej khib nyiab, thaum tseem ua rau kev sib haum xeeb ntawm cov subsoil, yog li txo cov kev pheej hmoo ua haujlwm xws li cov yeeb nkab tawg thiab puas; Qhov thib ob, lawv muab ob qho tib si yooj yim thiab kev ua haujlwm ntawm kev teeb tsa. Kev siv cov kev sib txuas yooj yooj yim tshem tawm qhov xav tau ntawm cov cuab yeej siv kev tsim kho, txhim kho kev tsim kho kom zoo. Tsis tas li ntawd, cov pob qij txha tuaj yeem raug kho nrog tshwj xeeb los tiv thaiv- lub tes tsho thiab cov sealants, zoo txo qhov kev pheej hmoo ntawm cov pob qij txha los ua cov ntsiab lus tsis muaj zog hauv kev tiv thaiv -corrosion system; Thib peb, cov nqi khiav lag luam thiab kev saib xyuas yog tswj tau heev. Cov kav dej hlau uas kho nrog dual- txheej tiv thaiv corrosion muaj kev tiv thaiv corrosion zoo heev thiab tiv thaiv- cov khoom laus. Lawv tsis tas yuav tsum tau saib xyuas ntau zaus; Kev tshuaj xyuas tsis tu ncua txhawm rau txheeb xyuas qhov muaj peev xwm txaus ntshai kom ua haujlwm ruaj khov.
Qhov tseem ceeb ntawm kev xaiv High -Quality Ductile Iron Pipes
Hauv kev tsim kho cov chaw kho dej khib nyiab, xaiv qhov siab - cov kav dej hlau zoo yog qhov tseem ceeb tshaj plaws. High-cov kav hlau kav hlau zoo ua kom lub sijhawm ntev -, ruaj khov ntawm kev kho cov dej khib nyiab thaum txo cov nqi tu thiab zaus. Kev tsim kho cov chaw kho dej khib nyiab yuav tsum muaj cov kav dej txhim khu kev qha kom ntseeg tau tias muaj kev nyab xeeb thiab kev kho cov dej khib nyiab. Ua tsaug rau lawv cov kev txhim kho corrosion siab heev- thev naus laus zis thev naus laus zis thiab cov txiaj ntsig zoo, cov kav dej hlau tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov chaw kho dej khib nyiab.