Qhov kev tiv thaiv corrosion ntawm cov ntaub ntawv yog qhov tseem ceeb hauv ntau yam ntawm kev tsim khoom lag luam. Niaj hnub no, peb yuav delve rau hauv kev ua tau zoo tshaj plaws ntawmcov khoom siv silicon carbidenyob rau hauv cov nqe lus ntawm kev tiv thaiv corrosion.
Silicon carbide yog ib qho tshuaj sib xyaw ua los ntawm silicon thiab carbon, uas muaj cov qauv siv lead ua tshwj xeeb thiab cov khoom siv tshuaj lom neeg. Los ntawm qhov pom ntawm lub microscopic, cov silicon atoms thiab cov carbon atoms hauv silicon carbide tau sib txuas ua ke los ntawm covalent bonds, tsim cov qauv lattice ruaj khov. Qhov no ua rau silicon carbide muaj kev ruaj khov tshuaj lom neeg zoo thiab muaj peev xwm tiv taus xeb los ntawm ntau yam tshuaj lom neeg, uas kuj yog qhov laj thawj tseem ceeb rau nws txoj kev tiv taus xeb.
Hauv ntau qhov xwm txheej kev lag luam, cov khoom siv ntsib teeb meem ntawm kev xeb. Piv txwv li, hauv cov chaw tsim hluav taws xob thermal, kev hlawv thee tsim cov pa roj uas muaj sulfur ntau heev. Cov pa roj acidic xws li sulfur dioxide hauv cov pa roj flue no yuav tsim cov tshuaj corrosive xws li sulfurous acid thiab sulfuric acid thaum lawv kov dej. Yog tias cov khoom siv ntawm cov khoom siv desulfurization muaj kev tiv thaiv corrosion tsis zoo, nws yuav raug xeb sai, cuam tshuam rau kev ua haujlwm ib txwm thiab lub neej kev pabcuam ntawm cov khoom siv.
Ua ib qho tseem ceeb hauv lub kaw lus desulfurization, qhov chaw ua haujlwm ntawm lub nozzle desulfurization yog qhov nyuaj heev. Nws tsis yog tsuas yog yuav tsum tiv taus qhov kev puas tsuaj ntawm cov pa roj kub siab xwb, tab sis kuj yuav tsum tau kov cov desulfurizers corrosive xws li pob zeb mortar ntev. Hauv qhov chaw ib puag ncig no, cov nozzles ua los ntawm cov ntaub ntawv ib txwm muaj feem yuav xeb, hnav, thaiv, thiab lwm yam teeb meem, ua rau kev ua haujlwm desulfurization txo qis thiab txawm tias yuav tsum tau hloov lub nozzle ntau zaus, ua rau cov nqi kho thiab lub sijhawm tsis ua haujlwm nce ntxiv.
Cov khoom siv silicon carbide muaj qhov zoo heev nyob rau hauv cov chaw zoo li no. Nws txoj kev tiv thaiv corrosion ua rau nws ua haujlwm ruaj khov rau lub sijhawm ntev, txo qhov ua tsis tiav los ntawm corrosion. Txawm tias nyob rau hauv kev sib cuag nrog cov kua qaub lossis alkaline desulfurizers muaj zog ntev, lub silicon carbide desulfurization nozzle tsis yooj yim corroded thiab puas tsuaj, ua kom ntseeg tau tias kev ua haujlwm zoo ntawm lub desulfurization system. Ntxiv rau qhov kev tiv thaiv corrosion, silicon carbide kuj muaj qhov nyuaj siab, lub zog siab, thiab kev tiv thaiv kev hnav zoo. Cov yam ntxwv no ua rau lub silicon carbide desulfurization nozzle kom tswj tau qhov kev ua tau zoo txawm tias nyob rau hauv lub ntsej muag ntawm cov pa roj flue ceev ceev thiab cov khoom tawg, ntev lub neej ntawm lub nozzle.
Cov khoom siv silicon carbide ua lub luag haujlwm tseem ceeb hauv kev siv cov desulfurization nozzles vim lawv cov tshuaj tiv thaiv corrosion zoo heev, muab kev lees paub zoo rau kev ua haujlwm zoo thiab ruaj khov ntawm kev tsim khoom hauv kev lag luam. Nrog rau kev nce qib ntawm thev naus laus zis, cov khoom siv silicon carbide yuav txuas ntxiv ua pov thawj lawv cov txiaj ntsig tshwj xeeb hauv ntau qhov chaw yav tom ntej, txhaj tshuaj tshiab rau hauv kev txhim kho kev lag luam.
Lub sijhawm tshaj tawm: Lub Xya Hli-07-2025