Water purifier with double-flushing function

Abstract

The invention discloses a water purifier with a double-flushing function. The water purifier comprises an internal pressure type ultrafiltration film, a UDF activated carbon filter bottle, a booster pump, a PP cotton filter bottle, a reverse osmosis film filter bottle, a microcrystalline carbon filter bottle and a pressure tank, wherein the PP cotton filter bottle is communicated with the UDF activated carbon filter bottle; the UDF activated carbon filter bottle is communicated with the internal pressure type ultrafiltration film; the internal pressure type ultrafiltration film is communicatedwith the booster pump; the booster pump is communicated with the reverse osmosis film filter bottle; the reverse osmosis film filter bottle is communicated with the microcrystalline carbon filter bottle; and the reverse osmosis film filter bottle and the microcrystalline carbon filter bottle are communicated with one end of the pressure tank. According to the invention, the structural characteristics of the internal pressure type ultrafiltration film and the mode of reverse osmosis film filtration bottle film filaments are utilized; flushing and filtering are combined, meanwhile, secondary pollution to film filaments is avoided in the flushing process, attached crops on the film filaments are reduced to the minimum degree, and the problems that raw water is low in pressure and contains impurities, and the attached crops on the surfaces of the film filaments cannot be effectively taken away in the flushing process are solved.

Description

technical field [0001] The invention relates to the technical field of water purifiers, in particular to a water purifier with double flushing functions. Background technique [0002] Ultrafiltration membranes are widely used in ordinary household water purifiers. At present, there are two types of ultrafiltration membranes: internal pressure type and external pressure type. Due to design reasons, reverse osmosis water purifiers generally use external pressure ultrafiltration membranes. The external pressure ultrafiltration membranes are thinner, and at the same time, the filter method from outside to inside causes impurities to be tightly adsorbed on the surface of the membrane filaments, reducing the water output. And it is difficult to wash, the way generally adopted at present is to wash directly with raw water, and the effect is not good. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings in the above-mentioned prio...

AI Technical Summary

Problems solved by technology

Due to design reasons, reverse osmosis water purifiers generally use external pressure ultrafiltration membranes. The external pressure ultrafiltration membranes are thinner, and at the same time, the filter method from outside to inside causes impurities to be tightly adsorbed on the surface of the membrane filaments, reducing the water output. And it is difficult to rinse, the current commonly used method is to rinse directly with raw water, the effect is not good

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