Intelligent water-saving system of RO (reverse osmosis) machine

Abstract

The invention relates to an intelligent water-saving system of a RO (reverse osmosis) machine. The water-saving system comprises a water pretreatment module, a return water dilution and reuse module, an automation control module and a RO purified water separating, recovering and using module which are sequentially connected, wherein the water pretreatment module comprises a scale preventer, a first filter and a second filter; the return water dilution and reuse module comprises a check valve, a first protector, a second protector, a first filter, a second filter, a common water tap and a pipeline; the automation control module comprises a computer board, a low-voltage switch, a high-voltage switch, a first water inlet solenoid valve, a booster pump, a second water inlet solenoid valve, a flushing solenoid valve and a pipeline; and the RO purified water separating, recovering and using module comprises a booster pump, a RO membrane filter, a wastewater proportion adjusting device, a pressure tank, a postpositional activated carbon filter, a pure water tap and a pipeline. According to the invention, concentrated water is controllable, easy to control, and self-controlled, the waste of water resources is reduced, the water use efficiency is improved, the application cost is lowered, and the consumption of social resources is reduced.

Description

Technical field [0001] The present invention relates to the technical field of water saving, and more specifically, to an RO machine intelligent water saving system. Background technique [0002] The working characteristics and defects of traditional RO machines: the concentrated water produced when purifying water is large, difficult to manage, passive management, serious waste of water resources, especially when the RO membrane decays to the later stage; when the RO membrane decays to 50%, water purification: Concentrated water = 1:6. Such a concentrated water ratio is unacceptable to consumers. The RO will have to be replaced. The customer's usage cost will increase. The value of the RO membrane is not maximized, resulting in waste. The water quality treatment method is single and does not combine the raw water quality. Proper water production process management is adopted, but the working principle is rigid, dogmatic, and lacks intelligence. Customers complain a lot and ...

AI Technical Summary

Problems solved by technology

[0002] Working characteristics and defects of traditional RO machines: when purifying water, the concentrated water produced is too much, which is not easy to manage, passive management, and serious waste of water resources, especially when the RO membrane decays to the later stage; when the RO membrane decays to 50%, the purified water: Concentrated water = 1:6, such a ratio of concentrated water is unacceptable to consumers, and RO will have to be replaced, the cost of use for customers will increase, and the value of RO membranes will not be maximized, resulting in waste; the water quality treatment method is single, not combined with the quality of raw water Adopt proper water production process management, the working principle is rigid, dogmatic, lack of intelligence, customers complain a lot, the media criticize strongly, it does not conform to the national energy saving and emission reduction policy

The working characteristics and defects of general water-saving machines: hold back the discharge and limit the current, and realize the effective management of concentrated water discharge through the timing opening or closing of the solenoid valve on the computer board, so as to achieve the purpose of water saving. The disadvantage is the work of RO membrane and pump The load is large, the service life is greatly shortened, and even the transformer is burned, the probability of machine failure is high, and it is impossible to form a stable batch of products in the market for promotion; change the ratio of waste water: generally clean water:concentrated water = 1:1 or 2:1 , mainly by changing the pressure in front of the membrane and increasing the recovery rate of the membrane to achieve the purpose of saving water. The disadvantage is that the desalination rate of the RO membrane decreases rapidly, the load of the booster pump becomes larger, and the service life is shortened.

Furthermore, the installation of the machine is more cumbersome, such as drilling holes on the wall, etc., which arouses consumers' resentment

Convenience, ease of use, and customer usage methods of concentrated water reuse affect the stable operation of the machine to a certain extent

If the RO membrane flushing protection problem is not solved, the life of the RO membrane will also be affected

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