Briefly describe the structure and characteristics of submersible aerators

　　Submersible aeratorAlso known as porous air diffusion device, it uses porous materials such as ceramics, coarse ceramics, etc. mixed with appropriate adhesives, sintered at high temperature to form diffusion plates, diffusion tubes, and diffusion covers. Currently, the most widely used is the membrane micro porous aeration device made by laser drilling rubber membranes. The main performance characteristics of a submersible aerator are the generation of tiny bubbles, a large gas liquid contact surface, and high oxygen utilization efficiency; The disadvantage is that there is a large loss of air pressure and it is prone to blockage. The incoming air should be filtered in advance.

The membrane type submersible aerator adopts ABS engineering plastic as the chassis, support plate, and pressure clamp. The air distribution membrane is made of special synthetic rubber, and the surface is covered with fine small holes. During oxygen aeration, the micropores on the gas distribution membrane of the aerator can expand and open on their own under the action of gas, ensuring that gas passes through the micropores. When in a stationary state, the micropores on the gas distribution film are in a closed state. Some submersible aerators are equipped with air valve devices on the chassis of the aerator, which prevent the mixed liquid from entering the gas distribution branch pipe when the pipeline system stops supplying gas, thus avoiding the mixed liquid from entering the branch pipe and being blocked.