Gas-spreading device for aeration system

Abstract

The invention provides a gas dispersing machine for an aerating system, which comprises a base and a gas dispersing film, wherein the base comprises a bearing disk and a gas inlet pipe, the center of the bearing disk forms a gas spraying hole and is provided with a bearing surface, and the gas inlet pipe is connected with the side opposite to the bearing surface of the bearing disk and provided with a channel communicated with the gas spraying hole; the gas dispersing film is arranged on the bearing surface of the bearing disk, the edge of the gas dispersing film is in close fit with the bearing surface of the bearing disk, the gas dispersing film comprises a gas inlet layer which is made of fiber and close to the bearing disk and a support layer which is overlapped on the gas inlet layer, and the gas inlet layer is non-woven cloth made of fiber with the diameter of between 50 nanometers and 5 micrometers and the basic weight of between 20 and 150 grams / square meter; and the gas dispersing machine has the effects of thinning gas bubbles and greatly improving the oxygen dissolving speed.

Description

【Technical field】 [0001] The invention relates to a diffuser for an aeration system (aeration), in particular to a diffuser which utilizes the pores of a non-woven fabric to form finer bubbles when the airflow enters water to increase the rate of dissolved oxygen. 【Background technique】 [0002] Generally, aerobic (biological treatment) sewage or wastewater (wastewater) treatment systems and aquaculture ponds are used, and aeration systems are usually used to increase the dissolved oxygen in water to provide the oxygen required by aquatic organisms. [0003] The aeration system includes several air diffusers, an air pipeline connected with each air diffuser, and a blower connected with the air pipeline. The air diffuser is mostly located at the bottom of the pool or tank. After the air is pressurized into the air pipeline by a blower, the air passes through the air diffuser to form bubbles and enters the water. The diffuser is mainly used to diffuse the airflow to increase ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the elastic material is not easy to form tiny perforations and the perforation density is not high, the inventors have found through many studies and experiments that non-woven fabrics with micron-scale pore sizes (poresize), such as melt-blown non-woven fabrics, are used as the air intake layer, and the use of The base weight is heavier, that is, the strength is stronger, but the woven or non-woven fabric with larger pores is used as the support layer to form a gas diffusion membrane with a composite layer structure.

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