Ua rau lom lom nyob rau hauv hluav taws xob cua sov Tube Thaum tshav kub kub Exchangers

Ua rau lom lom nyob rau hauv hluav taws xob cua sov Tube Thaum tshav kub kub Exchangers

1. Kev nyuaj siab corrosion, kub exchanger, thiab tshav kub exchanger kev nyuaj siab corrosion yuav tsum muaj ib tug tshwj xeeb corrosion ib puag ncig thiab txaus tensile kev nyuaj siab. Cl - yog lwm qhov tseem ceeb ua rau muaj kev ntxhov siab corrosion. Cl - muaj lub vojvoog me me thiab muaj zog nkag mus rau hauv lub zog, ua kom yooj yim rau nkag mus rau hauv cov pores me me hauv cov yeeb yaj kiab tiv thaiv, ua rau cov yeeb yaj kiab hauv zos thiab nkag mus rau qhov tawg kom tsim HCl, ua rau nws tus kheej accelerating catalytic accelerated corrosion txheej txheem. Nyob rau tib lub sij hawm, H ntxiv rau precipitates ntawm lub ntsis thiab nkag mus rau hauv pem hauv ntej ntug ntawm lub tawg, uas yuav embrittle cov hlau [2]. Qhov kub thiab txias yog qhov tseem ceeb ua rau muaj kev ntxhov siab corrosion tawg. Qhov kub siab dua, qhov qis dua qhov concentration ntawm Cl - uas ua rau corrosion, thiab qhov kev ntxhov siab ntau dua yuav tshwm sim.

2. Electrochemical corrosion, tshav kub exchanger thiab tshav kub exchanger electrochemical corrosion yog cov feem ntau siv hom hlau corrosion. Thaum cov hlau nyob rau hauv cov dej txias yog raug rau cov dej tov los yog cov huab cua nyob rau hauv ib lub sij hawm ntev, lub micro roj teeb, los yog ib tug corrosion roj teeb, yuav tsim nyob rau hauv cov hlau nto. Cov tshuaj tiv thaiv oxidation tshwm sim ntawm lub anode, ua rau lub anode yaj, thiab txo cov tshuaj tiv thaiv tshwm sim ntawm cathode. Qhov no ua rau cov hlau tsis tu ncua hauv cov dej txias, yog li ua rau muaj kev nyab xeeb ntawm kev ua haujlwm.

3. Qhov kub thiab txias muaj qhov cuam tshuam zoo rau cov tshuaj tiv thaiv corrosion hauv tshuaj lom neeg corrosion, tshav kub exchangers, thiab tshav kub exchangers. Hlau tsis yooj yim rau corrode hauv huab cua qhuav, tab sis nws yog ib qho yooj yim rau oxidized los ua oxide nplai ntawm qhov kub thiab txias, thiab nws cov cementite yog feem ntau decarburization cov tshuaj tiv thaiv, txo lub zog saum npoo thiab qaug zog ntawm cov hlau.

4. Biological corrosion, tshav kub exchanger, thiab tshav kub exchanger lom corrosion yog tsuas yog tshwm sim nyob rau hauv cov hlau nto uas tuaj mus rau hauv kev sib cuag nrog circulating dej thiab lwm yam xov xwm nyob rau hauv lub txias dej system. Yog vim li cas rau kev lom neeg corrosion yog tias cov kab mob siv cov organic corrosion inhibitors ua zaub mov, metabolize los tsim cov kua qaub, rhuav tshem cov hlau tiv thaiv corrosion tiv thaiv txheej, thiab metabolize kom haus oxygen, ua rau tsis sib xws O2 concentration ntawm cov hlau nto, ua rau oxygen concentration corrosion.

Composite ceramic high-temperature anti-corrosion txheej muaj qhov kub tsis kam. Thaum ua ntawv thov rau kev hloov pauv cua sov thiab kev sib pauv cua sov, nws ua rau cov nplaim hluav taws xob ceramic ci kub ntawm qhov kub thiab txias, nrog lub hardness ntawm li 7h. Cov txheej yog du thiab ntxuav tus kheej, tiv taus qhov cuam tshuam, thiab tuaj yeem tiv taus cov kua qaub thiab alkali corrosion mus ntev, muaj zog adhesion, dej thiab roj tsis kam, nrog rau corrosion thiab immersion hauv cov kuab tshuaj organic. Muaj cov txheej txheem tiv thaiv corrosion uas tuaj yeem tiv taus lub sijhawm ntev immersion hauv cov kuab tshuaj muaj zog thiab cov kuab tshuaj sib xyaw, oxidation thiab corrosion ntawm concentrated sulfuric acid thiab hydrochloric acid, corrosion ntawm cov kua qaub muaj zog, corrosion ntawm high-temperature chlorine gas, hydrogen corrosion, corrosion ntawm high-temperature chlorine gas High-temperature seawater, thiab dej thiab corrosion kuj ntawm 1000 degree. Tsis tas li ntawd, cov txheej txheem tiv thaiv corrosion no muaj kev hnav zoo thiab kev ua haujlwm ntawm tus kheej, ua rau nws muaj zog tshaj plaws tshav kub exchanger nyob rau hauv lub ntiaj teb no Siv anti-corrosion txheej rau lub tshav kub exchanger.

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