Reverse osmosis water purifier raw water and backwater mixing ratio control method and water purifier

Abstract

The invention relates to the water treatment industry, particularly to a water purifier, and discloses a reverse osmosis water purifier raw water and backwater mixing ratio control method and a waterpurifier. According to the present invention, a reverse osmosis membrane filtration core and a series connection fore-laying filtration core are connected to form a fore-laying filtration channel; thewater outlet end of the reverse osmosis membrane filtration core is connected to a water outlet pipeline, and the concentrated water discharge end of the reverse osmosis membrane filtration core is connected to a concentrated water discharge pipeline provided with a concentrated water discharge flow control device and a water discharge electric control valve; the water inlet end of a backwater pipeline provided with a backwater valve device is connected between the concentrated water discharge flow control device and the water discharge electric control valve; a water mixing ratio control structure is arranged, is connected in series in a fore-laying pipeline through an arranged large-diameter raw water inlet and an arranged mixed water outlet, and is connected to the water outlet end ofthe backwater pipeline through an arranged small-diameter backwater inlet; a TDS monitoring device monitors the TDS value at the position of a TDS probe through the TDS probe, and compares to a presetTDS limit; and the water discharge electric control valve is controlled to be conducted if the monitored TDS value exceeds the preset TDS limit, otherwise the water discharge electric control valve is controlled to be closed.

Description

technical field [0001] The invention relates to the water treatment industry, and specifically relates to a water purifier. technical background [0002] At present, bottled water drinking fountains are very common in China, but due to the "secondary pollution" phenomenon caused by the three factors of water delivery, replacement of empty water barrels, and excessive drinking time of bottled water, as well as due to door-to-door appointments The inconvenience and potential safety hazards caused by this problem have caused the barreled water dispensers to be gradually replaced by water purifiers with similar specifications. Although the water treatment technology of the water purifier is various, its essence remains the same. They all use municipal tap water as the raw water to remove impurities and bacteria in the tap water. The principle of pure water production is the same as that of bottled water. It can be said that the reverse osmosis water purifier is a reduced versio...

AI Technical Summary

Problems solved by technology

However, with the promotion of reverse osmosis water purifiers, its limitations in application have gradually been exposed, that is, reverse osmosis water purifiers need water sources and power sources, and usually can only be placed near the kitchen water source

Retrofitting municipal tap water pipelines is both difficult and aesthetically pleasing, resulting in inconvenience and regret in use, which seriously affects the promotion of household raw water direct drinking machines

This defect and deficiency have seriously affected the popularity and improvement of reverse osmosis water purifiers.

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