Side Flow Reverse Osmosis Membrane Filter

Abstract

Disclosed is a reverse osmosis membrane filter for raising a purified water recovery rate by increasing a supply amount of raw water to a reverse osmosis membrane sheet. According to the present invention, provided is a side stream flow-type reverse osmosis membrane filter comprising: a filter housing provided with a raw water port, a purified water port and a concentrate water port; an RO filter for subjecting raw water to a water purification treatment, thereby discharging the purified water to the inside direction and discharging the filtered concentrated water to the outside direction; and a central tube for collecting inside thereof the purified water, to which the purification treatment has been subjected by the RO filter, via through-holes formed in the radial direction, wherein a raw water moving tube, formed to be spaced apart from the inside of the central tube, forms a raw water moving passage in the center thereof, and forms a purified water moving passage between the raw water moving tube and the central tube; and a raw water distributor, mounted on the top end of the raw water moving tube and the central tube, supplies water to the raw water moving tube to supply a part of the raw water to the top end of the RO filter and supply a part of the raw water to the bottom end of the RO filter, and supplies the purified water, collected in the purified water moving passage, to the purified water port.

Description

technical field [0001] The invention relates to a reverse osmosis membrane filter, in particular to a side flow reverse osmosis membrane filter which increases the supply of raw water for the reverse osmosis membrane to improve the recovery rate of purified water. Background technique [0002] Generally, the RO filter (reverse osmosis membrane filter) is formed using a 0.0001-micron reverse osmosis membrane, and is used to filter heavy metals such as lead and arsenic, sodium, various pathogenic bacteria, and the like. On the other hand, since the raw water moves laterally with respect to the reverse osmosis membrane, the residence time of the raw water in contact with the surface of the reverse osmosis membrane is short. [0003] Accordingly, with respect to the inflow of raw water into the RO filter, the amount of purified water discharged through the water purification port after being filtered by the RO filter (generally, with a ratio of 3:1) is relatively low, so there i...

AI Technical Summary

Problems solved by technology

[0009] Therefore, it is necessary to connect pipes (not shown) to the above-mentioned filter housing H separately, so the operation is inconvenient, and the above-mentioned pipes are formed in the same shape and size, so there are cases where the operator connects these pipes possible confusing questions

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