Immersed rotary ceramic membrane aeration device

By designing an immersive rotary ceramic membrane aeration device, the problem of bubble adhesion is solved by using the rotary ceramic membrane assembly and a specific internal airway structure, and the efficient generation of micro-nano bubbles and improving dissolved gas efficiency.

CN119638091AActive Publication Date: 2025-03-18SUNTAR MEMBRANE TECHNOLOGY (XIAMEN) CO LTD
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Patent Information

Application Number
CN202411866807.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-18
Estimated Expiration
2044-12-18

AI Technical Summary

Technical Problem

During the bubble generation and disengagement process of existing ceramic membrane aeration devices, bubbles adhere to the ceramic membrane due to interfacial tension and interface energy, resulting in low micro-nano bubble generation efficiency.

Method used

An immersed rotary ceramic membrane aeration device is designed, adopting a rotary ceramic membrane assembly, including a hollow shaft, a rotary ceramic membrane and an air outlet. The internal airway structure includes an inner ring air collection cavity, an air flow channel and an outer ring aeration cavity. The air flow channel is distributed in an equally spaced spiral shape, and the transmembrane pressure gradually increases from the hollow shaft to the edge of the rotary ceramic membrane.

Benefits of technology

Through the design of the rotating ceramic membrane module, uniform bubble ejaculation and uniform particle size control are achieved, which significantly improves the generation efficiency and dissolved gas efficiency of micro-nano bubbles.

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Abstract

The invention discloses an immersed rotary ceramic membrane aeration device. The immersed rotary ceramic membrane aeration device comprises a base, a waterproof rotary motor, a rotary ceramic membrane component and a rotary joint, an internal air channel of the rotary ceramic membrane comprises an inner ring air collection cavity, a plurality of air flow channels with the same size and structure and an outer ring aeration cavity, the inner ring air collection cavity is communicated with air outlet holes corresponding to the rotary ceramic membrane where the inner ring air collection cavity is located and is communicated with the outer ring aeration cavity through the air flow channels, and different air flow channels distribute air independently. The inner ring gas collection cavity carries out secondary distribution on inlet gas, so that gas distribution is more uniform, the gas subjected to secondary distribution passes through the gas flow channels to be uniformly aerated, and meanwhile, the outer ring aeration cavity at the tail ends of the gas flow channels communicates all the gas flow channels, so that the aeration uniformity in each gas flow channel is further ensured. The whole device can be submerged in water for use, and installation, maintenance and application are all relatively flexible, simple and convenient.
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