Water purification system control method and water purification system

Abstract

The invention discloses a water purification system control method and a water purification system. A flushing filter element is connected in parallel on a pipeline between a water outlet of a boosterpump and a water inlet of a main filter element, and a first electromagnetic valve is mounted on the pipeline between the water outlet of the booster pump and the water inlet of the main filter element; after water production is stopped, the first electromagnetic valve is closed, a flushing filter element wastewater electromagnetic valve is started, the booster pump operates, water ends the flushing filter element, and then enters a main filter element to flush in front of a membrane of the main filter element after being filtered by the flushing filter element, thereby reducing a TDS value of the wastewater on the front side of the membrane of the main filter element; and meanwhile, the TDS value of a wastewater opening of the main filter element is acquired through a first detection device mounted at the wastewater opening of the main filter element, flushing is stopped when the TDS value of the wastewater opening is smaller than a first preset value, the inner side and the outer side of the membrane of the main filter element are soaked in pure water with the low TDS value, the technical problem that the TDS of a first cup of water is particularly high is solved, and crystallization of waterway system key components is avoided.

Description

technical field [0001] The invention belongs to the technical field of water purification, and in particular relates to a water purification system control method and a water purification system. Background technique [0002] RO pure water machine (or RO reverse osmosis pure water machine / RO water purifier) ​​is a water purifier that uses the principle of reverse osmosis technology to filter water. RO reverse osmosis technology is widely used in military, medical, industrial, civil and other fields . Known as one of the six high technologies of this century. [0003] With the increasingly serious environmental pollution and water pollution, it has seriously threatened people's drinking water health. RO machine water purification technology can remove various harmful impurities, heavy metals, viruses, bacteria, etc. in water, with high efficiency and thorough removal. A better way to make pure water. [0004] However, due to the characteristics of the RO membrane itself, a...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a water purification system control method and a water purification system. The main filter element is flushed by flushing the filter element, which solves the technical problem of the high TDS of the first cup of water in the existing water purifier. The TDS detection of the wastewater outlet of the main filter element controls the TDS value before the membrane of the main filter element below the first preset value, realizes intelligent adjustment of the flushing time and water volume, prevents crystallization at the junction of the membrane surface, membrane bottom and wastewater outlet, and avoids The technical effect of membrane blocking

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