Fresh water generator and fresh water generating method

Abstract

A wash water pipe having a flushing valve inserted therein is connected with a concentrated water outlet pipe connected to a concentrated water outlet of a fresh water generating cartridge. A timer controls opening and closing of the flushing valve. The flushing valve is periodically opened during interruption of fresh water generation work with the fresh water generating cartridge or during fresh water generation work, or opened simultaneously with interruption of fresh water generation work or when restarting fresh water generation work, for performing flushing. Thus, the linear velocity on the surface of a reverse osmosis membrane of the fresh water generating cartridge is increased and impurities remaining on the membrane surface are discharged from the fresh water generating cartridge.

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