Aeration tank and method of replacing hoses therein

Abstract

The invention discloses an aeration tank, which comprises a tank body, an air supply pipe, a flexible pipe, a pipe clamp and a pull rope. The tank body consists of tank sidewalls and a tank bottom. The air supply pipe is arranged above the tank body. The flexible pipe is expandable and collapsible. The first end of the flexible pipe is connected with the air supply pipe and the second end thereof is closed. The flexible pipe is divided into a first section adjacent to its first end and a second section adjacent to its second end. Air holes for air diffusion are formed at the second section of the flexible pipe, which is confined within the tank bottom by the pipe clamp arranged at the tank bottom. The first section of the flexible pipe extends from the tank bottom to the outside of the tank body. The pull rope is connected with the second end of the flexible pipe. The flexible pipe can be repaired or replaced without emptying the water in the aeration tank when a fault occurs in the flexible pipe. The operation of the other flexible pipes will not be affected when one of the flexible pipes is damaged, thereby ensuring the normal operation of the aeration tank. The invention also discloses a method of replacing the flexible pipe in the above aeration tank.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an aeration tank and a method for replacing a hose in the aeration tank. Background technique [0002] In traditional sewage treatment, the air diffusion device of the aeration system, that is, the aerator, is fixedly arranged at the bottom of the tank. The aerator is usually a rigid air distribution tube with a microporous membrane fixed on the outside. Among them, usually multi-section air distribution pipes are connected by rigid pipes to form a group, and the rigid connection pipes are fixed to the bottom of the aeration tank through pipe clips, and usually the pipe clips are fixed to the bottom of the tank through bolt connections. [0003] In this way, when only one of the aerators has a problem, the replacement needs to empty the aeration tank, which will affect the normal operation of the sewage plant. In addition, it is necessary to loosen the bolt connection on the tub...

AI Technical Summary

Problems solved by technology

[0003] In this way, when only one of the aerators has a problem, the replacement needs to empty the aeration tank, which will affect the normal operation of the sewage plant

In addition, when replacing the aerator, it is necessary to loosen the bolt connection on the pipe clip, but since a group of aerators needs multiple pipe clips to fix, this increases the labor intensity

[0004] In addition, there is also a suspended chain aeration device, which also has the function of being replaced without emptying the water, but it is lifted by the air pipe floating on the water surface, and there is a certain degree of difficulty in application. Limitations, factors such as water depth and layout density should be considered, and replacement needs to be rowed into the pool for replacement

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