Combined type constant-pressure reverse-osmosis (RO) sterilization water purifier

Abstract

The invention relates to water purifiers and particularly relates to a combined type constant-pressure reverse-osmosis (RO) sterilization water purifier. The combined type constant-pressure RO sterilization water purifier has the aims that the service life of an RO membrane is prolonged, the water purifying efficiency is increased, the time of replacement of the RO membrane is grasped accurately, and the problem that bacteria of purified water exceed the standard is effectively solved. In order to achieve the aims, the technical scheme provided by the invention is as follows: the combined type constant-pressure RO sterilization water purifier comprises a water pump, filter units, an RO membrane treatment unit and a water storage barrel, wherein the filter units and the RO membrane treatment unit are sequentially connected with a water inlet pipe, and the water storage barrel is connected with a purified water outlet pipe of the RO membrane treatment unit; an electromagnetic valve is arranged on a water inlet pipe of the RO membrane treatment unit, and a water return pipe is further connected to a wastewater pipe of the RO membrane treatment unit and is used for enabling wastewater to return to a water inlet end of the RO membrane treatment unit. The combined type constant-pressure RO sterilization water purifier has the beneficial effects that the service life of the RO membrane is prolonged, bacteria are effectively inhibited, and the energy consumption and wastewater yield are lowered.

Description

technical field [0001] The invention relates to a water purifier, in particular to a combined reverse osmosis sterilizing constant pressure water purifier. Background technique [0002] The main problem existing in the current product is that the total number of colonies in the soaking test exceeds the standard. However, none of the existing reverse osmosis water purifiers has a filter element to kill the colonies, so that the total number of bacterial colonies will exceed the standard again when the water purified by the entire reverse osmosis water purifier enters the pressure tank, causing harm to human health. The RO reverse osmosis membrane of the reverse osmosis water purifier has a short service life, and there is no good control over the time to replace the RO reverse osmosis membrane, resulting in either not being replaced in time, or the RO reverse osmosis membrane being replaced before its service life, resulting in waste. Contents of the invention [0003] The...

AI Technical Summary

Problems solved by technology

However, none of the existing reverse osmosis water purifiers has a filter element to kill the colonies, so that the total number of bacterial colonies will exceed the standard again when the water purified by the entire reverse osmosis water purifier enters the pressure tank, causing harm to human health. The RO reverse osmosis membrane of the reverse osmosis water purifier has a short service life, and the time for replacing the RO reverse osmosis membrane is not well controlled, resulting in either not being replaced in time, or the RO reverse osmosis membrane is replaced before the end of its service life, resulting in waste

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