Oval ring unit aeration system

Abstract

The invention discloses an elliptic annular unit aerating system. The elliptic annular unit aerating system comprises aerators, elliptic annular pipelines, connecting pipelines, a water inlet pipe and an air inlet pipe, wherein the aerators are fixed on the elliptic annular pipelines through threaded connection; each elliptic annular pipeline is composed of a left hollow straight pipe, a right hollow straight pipe, a hollow semi-circular arc pipe and a U type tee in a splicing mode; each U type tee is connected with the corresponding connecting pipeline and hollow straight pipes; the connecting pipelines are connected with four elliptic annular pipelines, the water inlet pipe and the air inlet pipe. The elliptic annular unit aerating system is uniform in air distribution, long in air-water contact time, easy to assemble and disassemble, convenient to run and maintain, and capable of being broadly used for sewage treatment facilities, the oxygen use ratio is improved, and the energy consumption is lowered.

Description

technical field [0001] The invention relates to an aeration system, in particular to an elliptical annular unit aeration system for 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 maintenance costs, and is prone to ...

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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 is prone to aeration dead angles

[0004] Secondly, the existing aeration system often has a fixed shape and a fixed treatment area, and its flexibility is not strong, which will cause inconvenience to its future operation and maintenance. In addition, the pipe network in the existing aeration system is arranged in a branched pipe network. It produces a large local loss during the operation of the system, resulting in a large energy consumption of the blower. Therefore, it is necessary to find an aeration system with high oxygen utilization rate, high oxygenation power efficiency, high flexibility, and energy saving

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