1. Dab tsi yog cov ntsiab lus tseem ceeb ntawm Cathodic tiv thaiv rau boiles leeg?
Cathodic kev tiv thaiv ua haujlwm los ntawm kev ua lub raj tso saum npoo cathode ntawm ib qho ntawm cov tshuab hluav taws xob. Kev siv tam sim no siv rectifiers thiab inert anodes rau kev tiv thaiv loj-ntsuas. Cov tshuab tshuaj ntsuab fij rau siv cov tshuaj tiv thaiv ntau ntxiv xws li cov hlau nplaum zoo li cov magnesium lossis zinc. Kev tiv thaiv kev tiv thaiv feem ntau yuav tsum tau ua kom haum ntawm tsawg kawg 200MV tsis zoo. Qhov tseem ceeb rau kev tiv thaiv cov chaw sab nraud hauv cov chaw ntub dej thiab cov tshuab dej qab zib.
2. Yuav ua li cas tshuaj inhibitors tiv thaiv kev boiler raj cuv corrosion?
Oxygen Scavengers Zoo li Hydazine Chemically Tshem tawm cov pa oxygen. Amines neutralize carbonic acid thiab nce p rau theem siab. Phosphates daim ntawv tiv thaiv tiv thaiv cov yeeb yaj kiab ntawm cov hlau. Filming amines tsim Hydrophobic teeb meem ntawm cov hlau chaw. Kev xaiv kom tsim nyog rau cov neeg tsim nyog yog nyob ntawm cov dej thiab cov haujlwm ua haujlwm.
3. Dab tsi yog qhov zoo ntawm cov dej txau cov txheej txheem rau corrosion tiv thaiv?
Hvofl txheej muab ntom, tiv thaiv cov khoom tiv thaiv zoo. Ntau yam ntaub ntawv (NICR, WC-CO) nplua sib txawv corrosion. Tuaj yeem thov hauv-situ thaum lub sijhawm saib xyuas. Thickness feem ntau 100-300μm sib npaug kev tiv thaiv thiab tus nqi. Kev npaj saum npoo yog qhov tseem ceeb rau txheej txheej nplaum.
4. Yuav ua li cas ua rau passivation tiv thaiv cov boiler raj li ntoo?
Forms stable oxide layer (magnetite Fe3O4) in alkaline conditions. Proper pH (9-11) and temperature (>100 degree) yog qhov tseem ceeb. Oxygen tswj tiv thaiv kev twb muaj kev tsis muaj peev xwm ntawm txheej passive txheej. Thaum pib caij thaum lub sijhawm ua haujlwm yog qhov tseem ceeb. Tswj kom tsis tu ncua kev tswj cov dej.
5. Dab tsi yog cov kev txwv ntawm cov txheej txheem organic rau cov raj boiles?
Cov kev txwv kub (feem ntau<150°C) restrict applications. Degradation over time requires reapplication. Difficult to repair damaged sections uniformly. Potential contamination of water/steam systems. Generally only used for external protection.
