Patent ID: 9045359
Filing Date: 2015-06-02
Classification: C02F

Abstract:
1. A reverse osmosis negative-ion water dispenser comprising a housing, wherein a polypropylene (PP) filter element, a granular active carbon fitter element and a compressed active carbon filter element are arranged inside the housing in the processing sequence of water purification; a low pressure switch is arranged between the PP filter element and the granular active carbon filter element; filtered tap water flows into a booster pump through an inlet solenoid valve; the booster pump is connected with an RO filter bottle at its water outlet end; the RO filter bottle is equipped with an RO membrane inside and disposed with two water outlets for concentrated water and pure water respectively, wherein the water outlet for concentrated water is connected with a flush solenoid valve as well as a waste water proportioner assembly, and the water outlet for pure water is connected with a storage tank through a high pressure switch and a float switch consecutively; the storage tank is provided with a high-low level three-line water level switch and its water outlet on the bottom is connected to a water inlet of a combined hot and cold exchange tank; the water flowing out of the exchange tank through its water outlet is passed to a fast heating equipment through a solenoid valve; the water outlet of the exchange tank is connected to a negative-ion generating device, whose water outlet is connected with the inlet of a winding tube in the hot and cold exchange tank; the outlet of the winding tube is connected with an assembly of PP cotton and ceramic filter element; and the water outlet of the assembly of PP cotton and ceramic fitter element is connected with a cold tank of which the water outlet end is connected with a cold-water faucet.