Reverse osmosis negative-ion water dispenser

A reverse osmosis negative-ion water dispenser comprising a housing, wherein a PP filter element, a granular active carbon filter 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 a RO filter bottle at its water outlet end;
• the RO filter bottle is equipped with a 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 filter element is connected with a cold tank of which the water outlet end is connected with a cold-water faucet.