RO membrane filter

Abstract

The invention provides a RO membrane filter. An end cover is arranged at one end of a shell, a waste water outlet is arranged at the end cover, and a water inlet and a pure water outlet are formed inthe other end of the shell; a RO membrane element is arranged in the shell, a water nozzle is formed in one end of the RO membrane element, a sealing ring is arranged between the end, close to the water nozzle, of the RO membrane element and the shell, a waste water area is defined between the outer diameter part at one side, at which the sealing ring is close to the end cover, of the RO membraneelement and the inner wall of the shell, a water inlet area is defined between the outer diameter part, at the other side of the sealing ring, of the RO membrane element and the inner wall of the shell, the water inlet is communicated with the water inlet area at the end surface of the RO membrane element, the pure water outlet is connected to the water nozzle, and the waste water outlet is communicated with the waste water area; a support ring sleeves the end, close to the end cover, of the RO membrane element for fixing the end cover inside the shell, and a gap is formed between the supportring and the inner wall of the shell. The RO membrane filter not only improves the recovery rate of the RO membrane element, but also increases the total water purification amount, and compared with acommon RO membrane element, a center tube and a wrapping tape are shortened as the width of a membrane is reduced, so that the cost is reduced.

Description

technical field [0001] The invention relates to the field of water purification, in particular to an RO membrane filter. Background technique [0002] Common RO membrane elements on the market are formed by a composite multi-layer winding center tube composed of RO diaphragms, water inlet grids, and pure water diversion nets. The center tube is placed between folded RO diaphragms, and the water inlet grid is located at the RO The water inlet flow channel formed between the folded inner surfaces of the membrane, the pure water flow guide network is located between the folded outer surfaces of the reverse osmosis membrane to form a water flow channel, the ordinary RO membrane element is the RO membrane on both sides The end face and the wall of the winding center tube are bonded with glue, and the entire outer surface is wrapped and sealed with tape, and a layer of sealing ring is added. [0003] Ordinary RO membrane elements are matched with ordinary RO membrane shells to ma...

AI Technical Summary

Problems solved by technology

[0003] Ordinary RO membrane elements are matched with ordinary RO membrane housings to make the direction of water inlet and the direction of concentrated water discharge consistent, and the raw water flow path is short and there is a dead angle for filtration, which cannot fully provide the effective utilization of the RO membrane, which will cause Prolonged use of RO membrane elements is prone to fouling, and the filtration efficiency of RO membrane elements is reduced, thereby shortening the service life

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