Intelligent water-saving reverse-osmosis water purifier with return device and method for purifying water by using intelligent water-saving reverse-osmosis water purifier

Abstract

The invention discloses an intelligent water-saving reverse-osmosis water purifier with a return device and a method for purifying water by using the intelligent water-saving reverse-osmosis water purifier and relates to the field of water purification. The water purifier comprises a water purifier main body; the water purifier main body is internally provided with a first pretreatment filter element, a second pretreatment filter element, a reverse-osmosis filter element, a low-voltage switch, a water inlet solenoid valve, a boosting pump, a first one-way valve, a high-voltage switch and a return pipeline. The method comprises the steps: connecting tap water to a water inlet of the reverse-osmosis water purifier, and starting the water purifier; and enabling water obtained by filtering the tap water by using the first pretreatment filter element and the second pretreatment filter element of the water purifier to enter the reverse-osmosis filter element to carry out purification to prepare pure water, wherein concentrated water produced in a pure water preparation process comprises two parts, one part of concentrated water returns to the boosting pump by the return pipeline, and the other part of concentrated water is directly discharged from a concentrated water discharging hole. By using the intelligent water-saving reverse-osmosis water purifier, not only can the discharge of the concentrated water be controlled to increase the water-saving energy efficiency, but also the risk of water leakage is reduced to the maximum extent, and meanwhile, the water quality and the use condition of the filter elements can be perceptually known by a user.

Description

technical field [0001] The invention relates to the field of water purification, in particular to an intelligent water-saving reverse osmosis water purifier with a backflow device and a water purification method thereof. Background technique [0002] The demand of the market promotes the rapid development of water purifiers. At present, the water purifiers on the market are constantly improving in terms of filtration technology, structural design, electronic control intelligence, and human-computer interaction. Water purification equipment using reverse osmosis membranes has appeared in the prior art. [0003] The reverse osmosis (RO) membrane has a filter pore size of only 0.0001 microns, so the surface is easily blocked, and the performance of the membrane is easily affected by residual chlorine, organic matter, etc., and the cost of the reverse osmosis (RO) membrane itself is relatively high, even a 50G A reverse osmosis (RO) membrane costs nearly 100 yuan, and a larger ...

AI Technical Summary

Problems solved by technology

[0004] 1. The water purified by the pretreatment filter element has not been used reasonably;

[0005] 2. Reverse osmosis (RO) water purifiers must produce concentrated water in the process of preparing water purification due to the limitation of their working principles, while the pure waste ratio of traditional reverse osmosis (RO) membranes is 1:3, that is, 1L Pure water is also accompanied by the generation of 3L concentrated water

[0006] The above two problems are undoubtedly a waste of water resources

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