RO machine intelligent water saving system and control method thereof

Abstract

The invention relates to an intelligent water-saving system of an RO (Reverse Osmosis) machine and a control method of the intelligent water-saving system. The control method comprises the following steps of judging whether the water pressure is normal or not after power on, if yes, turning on a first water inlet solenoid valve, turning on a rinsing solenoid valve and rinsing; making water after finishing rinsing until a pressure tank is full, turning on a second water inlet solenoid valve, closing the first water inlet solenoid valve, turning on the rinsing solenoid valve, and rinsing; lowering the pressure to a critical value after the pressure tank gets water normally, judging whether the water pressure is normal or not, if yes, turning on the first water inlet solenoid valve, turning on the rinsing solenoid valve, rinsing, and then stopping the rinsing solenoid valve; collecting data simultaneously with a TDS contact and a temperature contact, and calculating through a chip to determine whether the system needs to be rinsed; if no, making water directly; if yes, turning on the first water inlet solenoid valve, and turning on the rinsing solenoid valve; making water until the pressure tank is full, turning on the second water inlet solenoid valve, closing the first water inlet solenoid valve, meanwhile turning on the rinsing solenoid, rinsing and then stopping the machine. According to the intelligent water-saving system, a water-saving effect is realized, and a way is paved for the machine to become a machine suitable for promotion in the market.

Description

technical field [0001] The invention relates to the technical field of water saving, and more specifically relates to an intelligent water saving system of an RO machine and a control method thereof. Background technique [0002] Working characteristics and defects of the traditional RO machine: 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 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, and the cost of use for customers will increase, and the value of RO membrane will not be maximized, resulting in waste; the water quality treatment method is single, and there is no combination of raw water The water quality adopts proper water production process management, the working principle is ...

AI Technical Summary

Problems solved by technology

[0002] Working characteristics and defects of the traditional RO machine: 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 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, and the cost of use for customers will increase, and the value of RO membrane will not be maximized, resulting in waste; the water quality treatment method is single, and there is no combination of raw water The water quality adopts proper water production process management, the working principle is rigid, dogmatic, lack of intelligence, there are many complaints from customers, strong criticism from the media, and it does not conform to the national energy conservation 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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