A water purification system, water purification method and device

Abstract

The invention discloses a water purification system, a water purification method and a device. Wherein, the water purification system includes: an electric control board, a first solenoid valve, a first check valve, a precision filter, and an electric control board connected with the first solenoid valve for controlling the opening and closing of the first solenoid valve; A solenoid valve, connected to the post-filter element, used to control the pure water at the end of the post-filter element to be discharged through the first check valve; a precision filter, connected to the first solenoid valve, used to prevent bacteria from falling back in the drain line Contaminated pure water, wherein the drainage pipeline is the pipeline above the precision filter. The first non-return valve is connected with the precision filter, and is used to prevent the pure water from being polluted by the backflow of concentrated water in the drainage pipeline. Through the present invention, the pure water with higher TDS value and higher bacteria in the pipeline at the end of the rear filter element can be discharged, and the precision filter can further prevent the bacteria from falling back. Thus, the user can drink safe and pollution-free pure water, which ensures the physical and mental health of the user.

Description

technical field [0001] The invention relates to the technical field of water purification, in particular to a water purification system, a water purification method and a device. Background technique [0002] At present, water purifiers have been widely used because they have good effects in removing sediment, peculiar smell, heavy metals, organic matter, and bacteria and viruses. However, if the water in the water purifier does not circulate for a long time or is not used, it will be stored in the pressure vent, filter element and pipeline, causing a large number of bacteria to grow, causing secondary pollution of the purified water, and eventually causing the water used by the user to drink. Bacteria exceeding the standard is not conducive to the physical and mental health of users. [0003] After the reverse osmosis water purifier prepares pure water, during the shutdown process, raw water, concentrated water and pure water accumulate in the reverse osmosis membrane elem...

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Problems solved by technology

[0005] In the embodiment of the present invention, a water purification system, water purification method and device are provided to solve the problems in the prior art that when the water purifier is not used for a long time or is re-used after shutting down, it is easy to cause drinking water bacteria to exceed the standard and initial water production The problem of high TDS

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