Flat-plate membrane sheet pore membrane aerator

Abstract

The invention provides a flat-plate membrane sheet pore membrane aerator, which comprises: a supporting disc, wherein a connecting stud is arranged on the supporting disc, an air flow channel penetrating through the supporting disc and the connecting stud is formed in the supporting disc, a non-return projection is arranged on the air flow channel, a plurality of reinforcing ribs are arranged between the supporting disc and the connecting stud, a fixing ring groove is formed in the upper surface of the supporting disc, and external threads are arranged on the circumferential surface of the supporting disc; a membrane sheet connected with the fixing ring groove in a clamped manner, wherein the circumferential edge of the membrane sheet projects downwards to form an expansion structure connected with the fixing ring groove in a clamped manner, and the middle of the bottom surface of the membrane sheet projects downwards to form a first non-return structure; a non-return device arranged in the air flow channel, wherein a non-return ring is inserted into the air flow channel, and the non-return device comprises a non-return ball arranged in the air flow channel and slidably connected with the non-return ring; and a pressing cover connected with the external threads in a threaded manner, wherein the pressing cover is annular, the outer edge of the circumference of the pressing coverextends downwards and is provided with internal threads, a plurality of reinforcing grippers are uniformly distributed on the pressing cover in the circumferential direction of the pressing cover, and a clamping ring for preventing the membrane sheet from being disengaged is arranged on the bottom surface of the pressing cover. The flat-plate membrane sheet pore membrane aerator of the inventionhas advantages of good non-return effect and the like.

Description

technical field [0001] The invention relates to the technical field of aerators, in particular to a flat membrane aerator with holes. Background technique [0002] In the field of sewage treatment, the aerator has a great influence on the oxygen transfer efficiency and the operating cost of sewage treatment. The domestic development and application of aerators began in the mid-1980s, and the representative ones in chronological order are: perforated tube aeration, corundum aerator, disc-type flat membrane microporous membrane aerator, tubular membrane Microporous aerators, jet aerators, diffuse flow aerators, cyclone aerators, etc. [0003] Although the existing diaphragm hole membrane aerators can carry out conventional aeration, there are still many deficiencies: [0004] 1. The diaphragm is easy to fall off and break during operation; [0005] 2. The sealing and non-return effects are poor, and sewage backflow is prone to occur; [0006] 3. High energy consumption and...

AI Technical Summary

Problems solved by technology

[0004] 1. The diaphragm is easy to fall off and break during operation;

[0005] 2. The sealing and non-return effects are poor, and sewage backflow is prone to occur;

[0006] 3. High energy consumption and low efficiency

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