Cov khoom siv hauv ob sab phlu ntawm cov kav hlau muaj qhov cuam tshuam loj rau lawv cov kev tiv thaiv corrosion. Cov ntaub ntawv sib txawv muab cov qib sib txawv ntawm kev tiv thaiv corrosion los ntawm ib puag ncig sab nraud. Cov hauv qab no yog cov ncauj lus kom ntxaws txog ntau yam khoom siv hauv ob sab phlu thiab lawv cov ntawv pom zoo:
Ordinary Portland Cement Lined Pipes
Ib qho yooj yim Portland cement mortar hauv ob sab phlu yog hom kev tiv thaiv kev tiv thaiv sab hauv feem ntau siv hauv cov kav dej hlau. Nws cais cov dej los ntawm cov yeeb nkab lub cev, tiv thaiv cov yeeb nkab los ntawm corrosion.
Daim Ntawv Thov: Kev xa tawm ntau hom dej nyoos thiab dej haus.
Siab -Alumina Cement Lined Pipes
High-alumina cement yog ib qho uas nquag siv los tiv thaiv-corrosion hauv ob sab phlu uas muaj qhov zoo xws li kev teeb tsa ceev, siab -kub tsis kam, acid tsis kam, thiab corrosion kuj.
Daim ntaub ntawv: Cov kav dej rau kev tso dej los nag thiab dej phwj tuaj, nrog rau kev xa khoom ntawm kev lag luam lossis cov dej khib nyiab hauv tsev uas muaj qee yam tshuaj.
Sulfur-Resistant Cement-Cov kav dej
Sulfur-resistant cement{1}} cov kav dej muaj cov tshuaj tiv thaiv zoo heev, adhesion zoo, thiab siab ceev.
Daim ntawv thov: Cov kav dej phwj tuaj thiab dej hiav txwv conveyance.
Dej-Raws li Epoxy Resin Lined Pipes
Dej-raws li epoxy resin lined kav dej muaj zog txheej adhesion thiab tiv taus acids, alkalis, thiab ntsev.
Ib txheej ntawm cov dej-raws li epoxy resin yog txau rau saum npoo ntawm cov cement hauv ob sab phlu, nrog cov txheej tuab ntawm ntau dua lossis sib npaug li 200 μm, tsim cov txheej tiv thaiv tawv uas hais txog qhov teeb meem nce pH uas cuam tshuam rau cov dej zoo.
Haum rau: Cov dej haus ncaj qha cov dej num.
Epoxy-Ceramic Lined Pipes
Epoxy-ceramic lined kav muaj qhov zoo xws li corrosion kuj, antistatic zog, thiab siab abrasion tsis kam, nrog rau zoo adhesion thiab nto tiav.
Daim Ntawv Thov: Cov dej num dej thiab cov dej khib nyiab hauv nroog; cov kav dej no muaj txiaj ntsig zoo, tshwj xeeb tshaj yog nyob rau thaj tsam arid xws li suab puam.
Polyurethane-Liab yeeb nkab
Polyurethane- cov kav dej muaj qhov ua kom tsis zoo, tiv thaiv corrosion, xoom permeability, du nto, tsis tshua muaj dej tsis kam, tiv thaiv -scaling zog, thiab tsis muaj volatile organic compounds (VOCs), ua rau lawv nyob ib puag ncig.
Daim ntaub ntawv: Cov kav dej uas yuav tsum tau muaj cov hauv ob sab phlu zoo thiab tsis tshua muaj dej tsis kam; cov kav dej corrosive heev; thiab cov kav dej xa mus rau cov dej khib nyiab hauv tsev uas muaj cov kua qaub thiab alkalis, cov dej khib nyiab, thiab dej hiav txwv desalinated.
