Surface type reverse osmosis membrane filter element

Abstract

The invention relates to the technical field of reverse osmosis membranes, and especially relates to a surface type reverse osmosis membrane filter element. The filter element comprises a first shelland a second shell rotationally connected with the first shell through a rotating shaft, limiting rings are arranged in the first shell, the center axis of each limiting ring is elastically connectedwith the first shell through a rotary spring disc, an arc-shaped groove is formed in each limiting ring, a clamping groove is formed in the side, away from a first compression spring, of an arc-shapedclamping block, and the clamping groove is connected with a clamping groove formed in each limiting ring in a clamped mode. The clamping grooves and the arc-shaped clamping blocks are connected in aclamped mode, so the two sides of a permeable membrane are conveniently clamped; the two sides of the permeable membrane are fixed through the two limiting rings, so the permeable membrane is straightened, and the permeable membrane is convenient to use; and meanwhile, due to sliding connection between a second pressing plate and an inclined groove, automatic closing is achieved when the water pressure is too large, and the permeable membrane is prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of reverse osmosis membranes, in particular to a surface type reverse osmosis membrane filter element. Background technique [0002] The general flow of water is from low concentration to high concentration. Once the water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: because the pore size of the reverse osmosis membrane is one millionth of the hair, Generally invisible to the naked eye, bacteria and viruses are 5,000 times larger than it. Therefore, only water molecules and some mineral ions can pass through, and other impurities and heavy metals are discharged from the waste water pipe. Using this method, the reverse osmosis membrane is also called the high-tech "artificial kidney" in vitro. At home and abroad, in the fields of medicine, military and civilian use, top-level reverse osmosis membranes are used for polymer filtrati...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to propose a surface type reverse osmosis membrane filter element in order to solve the problems that the reverse osmosis membrane filter element is difficult to fix, leaks water under pressure and damages the permeable membrane by water pressure.

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