Efficient open type net pipe flowing channel reverse osmosis membrane element

Abstract

The invention relates to an efficient open type net pipe flowing channel reverse osmosis membrane element. The efficient open type net pipe flowing channel reverse osmosis membrane element comprises acentral flow guide pipe, and a separating layer which coats the periphery of the central flow guide pipe, wherein the separating layer is a membrane bag layer manufactured by coiling a plurality of membrane bags and open separating nets in the same direction; the open separating nets are arranged in inlet water flowing channels between the surfaces of adjacent membrane bag layers and are in convex point contact manner with the surfaces of the membrane bags, and fine rhombic separating nets are used for connecting the convex points so as to form rhombic wide open type flowing channels betweentwo rows of convex point shaped separating nets on the contact surfaces of the membrane bags in the water flowing in and out directions; the inner side edges of the membrane bags and the open separating nets are fixedly connected with the central flow guide pipe and are radially arranged from the center; the membrane bags and the open separating nets are screwed in the same direction so as to formthe membrane bag layer; the coiled membrane bag layer is coiled, coated and sealed with glass fibers and epoxy resin, and the two ends are equipped with stress-resistant plates.

Description

technical field [0001] The invention belongs to the technical field of sewage concentrating and purifying membrane components based on the reverse osmosis principle, and in particular relates to an open network pipe flow channel reverse osmosis membrane component. Background technique [0002] In recent years, membrane technology has developed rapidly and has been widely used in electric power, metallurgy, petroleum and petrochemical, medicine, food, municipal engineering, sewage reuse and seawater desalination. The demand for membrane technology and its equipment in various projects is even greater. is a rapid increase. [0003] 1. At present, in the application field of reverse osmosis membrane, roll membrane and disc tube membrane occupy the leading market. The application of ordinary network-managed reverse osmosis membranes is gradually promoted. Among them, the recognized original roll reverse osmosis membrane is a spiral roll structure, which is formed by superimpos...

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Problems solved by technology

[0012] The technical problem to be solved by the present invention is that in the prior art, the spiral-wound reverse osmosis membrane element has poor water inlet flow path, poor fouling resistance, easy to cause concentration polarization, and the disc tube type reverse osmosis membrane element The membrane area is small, the maintenance is cumbersome, the investment cost is high, and the influent water distribution is uneven, and the need to set the central tie rod is cumbersome and other shortcomings. Inventing a high-efficiency open network management reverse osmosis membrane module

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