Double outlet water purifier that prolongs the life of the ro membrane

Abstract

The invention discloses a double-outlet water purifier capable of prolonging the service life of an RO (reverse osmosis) membrane. The double-outlet water purifier comprises a first pretreatment filter flask component, a second pretreatment filter flask component, a third pretreatment filter flask component, a booster pump, an RO membrane filter element, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a pressure control switch, a rear activated carbon filter element, a pressure barrel, a purified water faucet A and a pure water faucet B. Under the premise of guaranteeing normal cleaning of the RO membrane, the double-outlet water purifier provided by the invention also avoids that the RO membrane can not be fully flushed as flush solenoid valves are used in the prior art. The double-outlet water purifier can also achieve automatic flushing of the RO membrane via the corresponding structure and can thoroughly flush the RO membrane, so that the double-outlet water purifier can well protect the RO membrane and effectively prolong the service life of the RO membrane.

Description

technical field [0001] The invention belongs to the field of water purification treatment equipment, and in particular relates to a double outlet water purifier which prolongs the service life of RO membranes. Background technique [0002] In the existing household water purification treatment, the two most widely used are pure water machine and dual water quality water purifier, among which: [0003] see figure 1 , analyzing the structure of a common water purifier, it can be seen that the pure water machine mainly includes the first pretreatment filter bottle assembly 1 connected in sequence (for example, it generally includes the shell and the nanofiltration membrane element inside the shell, activated carbon filter element, PP filter element, etc. ), the second pretreatment filter bottle assembly 2, the third pretreatment filter bottle assembly 3, the booster pump 6, the RO membrane filter element 4 (that is, the inlet 4a of the RO membrane filter element 4); wherein th...

AI Technical Summary

Problems solved by technology

The above-mentioned double water quality water purifier is just a simple system diversion of the original pure water machine, without optimization, resulting in the need for an additional flushing solenoid valve 10 during use (also causing the flushing solenoid valve flushing time to be too long) Long, easy to cause waste of water resources; short flushing time, RO membrane flushing is not thorough, thereby shortening the life of the RO membrane, etc.)

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