Principle of the MVR process flow
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Who knows the MVR principle? Tell me about it, thank you.
It involves using a steam compressor to pressurize the secondary steam (raising its temperature), and then using this compressed steam as a heating medium to force circulation within the evaporator in order to heat the condensate, which is then discharged as wastewater
MVR has an additional compressor compared to multi-effect evaporation. Second-stage vapor compression. Increased pressure is achieved by raising the temperature and then utilizing it. This results in a better secondary gas effect. There are corrosive acid baths. Alkali bath evaporation is not suitable. Because the compressor impeller rotates at high speed. Corrosion of the impeller affects dynamic balance. Danger. Currently, it is used in industries such as the sodium metabisulfite industry and paper black liquor extraction. . . .