High -efficient preparation facilities of RO water

The utility model discloses a high -efficient preparation facilities of RO water, including the former jar that is used for the splendid attire raw water, the RO membrane of realizing raw water reverse osmosis function, the circulation pipeline that can utilize as to this dense water and the pure water jar that is used for holding the pure water, reverse osmosis membrane modulus includes one -level RO membrane and second grade RO membrane, the dense water exit linkage of one -level RO membrane is connected to second grade RO membrane water inlet, and one -level RO membrane pure water outlet isconnected to the pure water jar, dense water exit linkage circulation pipeline of second grade RO membrane and emission pipeline, second grade RO membrane pure water outlet is connected to the pure water jar, circulation pipeline is last to be equipped with dense water and can only to be provided with pneumatic butterfly valve on the drain line by the check valve of the dense water of second grade RO membrane export flow