Water purifying system and automatic working pressure adjusting method thereof

Abstract

The invention discloses a water purifying system and an automatic pressure adjusting method thereof. The water purifying system comprises a filtering part, a pure-water part, a concentrated-water part, a reverse-osmosis filtering core and an electric control device, wherein the filtering part is divided into two paths for output by the reverse-osmosis filtering core, one path goes to the pure-water part, and the other path goes to the concentrated-water part; the filtering part is provided with an inflow-water pressure sensor, a pressure adjusting device and a membrane-front water pressure sensor; the electric control device is electrically connected with the inflow-water pressure sensor, the pressure adjusting device and the membrane-front water pressure sensor. The water purifying system disclosed by the invention has the advantages that the electric control device detects the inflow-water pressure condition of the filtering part according to the inflow-water pressure sensor, the pressure of water about to enter the reverse-osmosis filtering core is adjusted by controlling the pressure adjusting device, and the membrane-front water pressure sensor detects whether the pressure of water about to enter the reverse-osmosis filtering core meets the set value, so that the electric control device can control the pressure adjusting device to work, the balance of the amount of outflow water can be guaranteed, the working reliability also can be improved, and the service life can be prolonged; and the working condition of the pressure adjusting device can be adjusted intelligently, so that an optimum working pressure is provided for the pressure of water about to enter the reverse-osmosis filtering core.

Description

technical field [0001] The invention relates to the technical field of water purification systems, in particular to a water purification system and an automatic adjustment method for working pressure thereof. Background technique [0002] In recent years, water purification products have attracted more and more attention from consumers as health products, and the water purification industry has also developed rapidly. The reverse osmosis water purification system is the mainstream of the domestic household water purification system. The reverse osmosis filter element needs a certain osmotic pressure to make the aqueous solution permeate from high concentration to low concentration. Therefore, a major feature of the general reverse osmosis water purification system is that there is a booster pump for front-end pressurization. [0003] Such as figure 1 As shown, it is a technical solution of an existing water purification system, including a filter part, a pure water part, a...

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Problems solved by technology

[0004] The water purification system of the above-mentioned prior art solution still has the following deficiencies: the booster pump works under rated working conditions, and the booster pump does not change its working conditions regardless of the water inlet pressure. Therefore, when the water inlet When the water pressure is low, the outlet flow of the water purification system will decrease; when the inlet water pressure is high, the outlet flow of the water purification system will increase; if the water source is short of water, the booster pump will enter dry pumping, affecting Service life, if the water pressure is too high, it will cause damage to the whole machine

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