An aeration system that can form a circulation

Abstract

The invention discloses an aerating system capable of forming a circulation flow. The aerating system comprises aerators, elliptic annular pipelines, a connecting pipeline, a water inlet pipe and an air inlet pipe, wherein the aerators are fixed on the elliptic annular pipeline through thread connection; each elliptic annular pipeline is spliced by a left hollow straight pipe, a right hollow straight pipe, a hollow semi-arc pipe and a U-type tee; each U-type tee is connected with the corresponding left hollow straight pipe, the corresponding right hollow straight pipe and the connecting pipeline; the connecting pipeline is connected with four elliptic annular pipelines, the water inlet pipe and the water outlet pipe. Through the difference among the opening positions of the pipelines, the opening direction of the pipelines, the opening positions of the aerators, the opening directions of the aerators and the alternate arrangement of the upper and lower aerators, water surrounding the aerators and the elliptic annular pipelines can form the circulation flow, the aeration can be realized without dead corners, the turbulent fluctuation extent of a water body can be enhanced, the air-water contact time is prolonged, the oxygen utilization rate is increased and the energy consumption is lowered.

Description

technical field [0001] The invention relates to an aeration system, in particular to an aeration system capable of forming circulation, which can be used in sewage treatment. Background technique [0002] At present, the commonly used aeration method in sewage biological treatment process is bottom blast aeration. Aeration can prevent the suspension of the tank from settling, and strengthen the contact between organic matter, microorganisms and dissolved oxygen in the pool, and strengthen the decomposition of organic matter in sewage by increasing oxygen. However, aeration is also the most energy-consuming link, accounting for about 50-70% of the total electricity consumption of the entire sewage treatment. [0003] Common aeration methods in the prior art can be mainly divided into two categories, namely: bubble aeration method and surface aeration method. However, the aeration equipment used in the prior art often consumes a lot of power, has high operation and maintenanc...

AI Technical Summary

Problems solved by technology

However, the aeration equipment used in the prior art often consumes a lot of power, has high operation and maintenance costs, and the volume of aeration bubbles is large, resulting in uneven aeration and low oxygen utilization.

Although the aeration aperture of some aerators is extremely small, the volume of the bubbles produced is small, and the oxygen utilization rate is high, but the local loss caused by it is large, the energy consumption of the blower is large, and the aeration has dead angles, so it is necessary to find a method that can both An aeration system that produces small-volume air bubbles, has high oxygen utilization and saves energy

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