Permeable membrane assembly capable of reducing driving pressure

Abstract

The invention discloses a permeable membrane assembly capable of reducing driving pressure. The permeable membrane assembly comprises a permeating liquid center pipe and multiple membrane units, wherein the membrane units are staggered, two adjacent different membrane units constitute one filter bag unit, producing water flow channel cloth is arranged in each filter bag unit and is close to the middles of the two membrane units, three ends of the inner side of each filter bag unit are sealed, the unsealed end of each filter bag unit is mounted on the permeating liquid center pipe, permeable microholes are formed in the permeating liquid center pipe and communicated with unsealed openings of the filter bag units, water inlet flow channel cloth is arranged between two adjacent filter bag units, the permeation pressure is reduced, driving force of membranes is reduced, requirements for pipelines, valves, pumps and membrane housings are reduced, requirements for the anti-compaction performance of the membrane assembly are reduced, pollutant blocking of the membranes and the cleaning recovery difficulty are reduced, safety hazard caused by high driving force is reduced, and energy consumption can also be reduced.

Description

technical field [0001] The invention relates to the technical field of filter membrane manufacturing, in particular to a permeable membrane module for reducing driving pressure. Background technique [0002] At present, the traditional osmotic membrane module is used for the separation of high-concentration material and liquid. Because the concentration is high and the osmotic pressure is high, the osmotic pressure must be overcome, so the driving force is also high. The anti-compression performance of the membrane module is relatively high, the membrane fouling increases, and it is difficult to clean and recover after the membrane fouling. At the same time, the high driving force also poses a safety risk. Contents of the invention [0003] Aiming at the defects and deficiencies of the prior art, the purpose of the present invention is to provide a permeable membrane module that reduces the osmotic pressure, reduces the driving force of the membrane, slows down membrane fo...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional osmotic membrane module is used for the separation of high-concentration material and liquid. Because the concentration is high and the osmotic pressure is high, the driving force must be overcome. The anti-compression performance of the membrane module is relatively high, the membrane fouling increases, and it is difficult to clean and recover after the membrane fouling. At the same time, the high driving force also poses a safety risk

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