Air diffusion aerator

Abstract

The invention discloses an air diffusion aerator. The air diffusion aerator comprises an air inlet pipe and an inverted umbrella cap, wherein the upper end of the air inlet pipe is connected with the lower end of the inverted umbrella cap through a perforated pipe; four walls of the perforated pipe are provided with a plurality of micro-pores passing through the pipe wall of the perforated pipe; the pipe wall of the perforated pipe on which the micro-pores are formed is provided with extension conduits with the same or different extension lengths; and at least two layers of conical teeth are distributed on the outside cap wall of the inverted umbrella cap. Since the technical scheme is adopted, air current enters a medium from the micro-pores of the perforated pipe after entering the perforated pipe. The air diffusion aerator has the advantages of simple structure, fine air bubbles entering the medium, uniform distribution and high oxygen mass transfer efficiency.

Description

technical field [0001] The invention relates to a diffuse flow aerator. Background technique [0002] Aeration refers to artificially passing air into the biochemical aeration tank through appropriate equipment to achieve the expected purpose. Aeration not only makes the liquid in the pool contact with air to oxygenate, but also accelerates the transfer of oxygen in the air to the liquid due to the agitation of the liquid, thereby completing the purpose of oxygenation; in addition, aeration also prevents the suspension of the pool from sinking and strengthens the oxygen in the pool. The purpose of contacting organic matter with microorganisms and dissolved oxygen. In this way, the microorganisms in the pool can oxidize and decompose the organic matter in the sewage under the condition of sufficient dissolved oxygen. In the aerobic biochemical treatment methods such as activated sludge method, biofilm method and contact oxidation method, aeration and oxygenation are indispe...

AI Technical Summary

Problems solved by technology

[0003] At present, the aeration devices produced by some manufacturers in China mainly include: microporous aerators, diffuse aerators, perforated pipes and aeration hoses, etc., but these aeration products often have the following disadvantages after long-term use: uneven aeration , the liquid agitation effect is reduced, the aeration hole is easy to block, the bubbles become larger, and the oxygen mass transfer effect is poor

In order to overcome these shortcomings, some improved products have appeared in the aeration device, but the structure is complicated, the price is expensive, and there will be clogging and uneven aeration after long-term use.

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