Dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and control method thereof

Abstract

The invention discloses a dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device and a control method thereof. The dual-membrane dual-core cascaded slightly-concentrated water reverse osmosis device comprises a water channel device and a circuit device. The water channel device comprises a municipal tap water inlet, a primary filter element, a secondary filter element, a tertiary filter element, a booster pump and a first reverse osmosis membrane component which are sequentially connected through a pipeline, a water inlet control valve is arranged on a pipeline between the tertiary filter element and the booster pump, the first reverse osmosis membrane component is communicated with a purified water channel and a concentrated water channel, the purified water channel comprises a Y-shaped three-way joint communicated with the first reverse osmosis membrane component through a pipeline, the Y-shaped three-way joint is communicated with a T-shaped three-way joint through a pipeline, one way of the T-shaped three-way joint is communicated with a pressure barrel through a high-pressure switch, another way of the T-shaped three-way joint is communicated with a water faucet through a rear activated carbon filter element, the concentrated water channel comprises a second reverse osmosis membrane component communicated with the Y-shaped three-way joint through a pipeline, and the second reverse osmosis membrane component is communicated with a drain pipe on which a combined wastewater electromagnetic valve is arranged.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a double-membrane double-core serial micro-concentrated water reverse osmosis device and a control method thereof. Background technique [0002] The reverse osmosis device pretreats the raw water through a multi-media filter, activated carbon filter, softening filter, etc., and then pressurizes it through a high-pressure pump. 1 / 300) of the reverse osmosis membrane (RO membrane), so that the higher concentration of water into low concentration water, while industrial pollutants, heavy metals, bacteria, viruses and other impurities mixed into the water are all isolated, so as to meet drinking regulations Physical and chemical indicators and hygiene standards. [0003] While the reverse osmosis water treatment device produces pure water, it also produces a part of concentrated water, and the amount of concentrated water is generally more than three times that of pure water...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a double-membrane double-core serial micro-concentrated water reverse osmosis device and its control method to overcome the disadvantages of high wastewater and high noise in reverse osmosis water purification products in the prior art and reduce production costs. And improve the water utilization rate and the performance of reverse osmosis components

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