Gas diffusion device for aeration
A gas diffuser and gas diffusion technology, applied in water aeration, applications, chemical instruments and methods, etc., can solve the problems of difficult processing, limited number of perforations, low perforation density, etc., to increase mechanical strength and increase dissolved oxygen. The effect of improving the oxygen transfer coefficient and oxygen transfer efficiency
Active Publication Date: 2015-07-22
KANG NA HSIUNG ENTERPRISE CO LTD
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- Application Information
AI Technical Summary
Problems solved by technology
In order to form finer air bubbles, usually the smaller the size of the vent hole and the higher the density is better, but because the elastic material has considerable toughness, it is not easy to process to form tiny perforations. Generally, the size of the vent hole formed is only in centimeters (mm )grade
Moreover, in order to make the breathable membrane have a certain strength, the number of perforations that can be formed on a single membrane surface is limited, so that the perforation density is low.
Method used
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Embodiment Construction
[0024] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:
[0025] refer to figure 1 and figure 2 , The first preferred embodiment of the gas diffuser 1 for aeration of the present invention includes: a base 2 , a gas diffusion sheet 3 and a check valve 4 . The base 2 includes a circular support plate 21 and an air inlet pipe 22. The support plate 21 has a bearing surface 211 and a bottom surface 212 on the opposite side of the bearing surface 211. The air intake pipe 22 is connected to the bottom surface 212 of the support plate 21. Threads 221 are formed on the outer surface of the air pipe 22 for locking with an air delivery pipe 81 . The center of the base 2 has a gas passage 23 , the gas inlet 231 of the gas passage 23 is located at the connecting end of the inlet pipe 22 and the gas delivery pipe 81 , and the gas outlet 232 of the gas passage 23 is located at the center of the bearing surface 211 .
[0026] The...
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Abstract
The invention provides a gas diffusion device for aeration. The gas diffusion device comprises a base seat, a gas diffusion sheet and a check valve, wherein the center of the base seat is provided with a gas passageway; the periphery of the gas diffusion sheet is sealed on the base seat; the check valve is positioned at the gas outlet of the gas passageway and is a float type piston for closing the gas passageway in one way and merely supplying gas to flow out; the gas diffusion sheet is provided with a supporting layer and a polymer porous membrane coated on the surface of the supporting layer; the supporting layer is permeable and the breaking elongation of the supporting layer is not more than 20%; the polymer porous membrane is positioned between the supporting layer and the base seat; and by the polymer porous membrane, the gas flowing out of the gas passageway is transversely diffused and then successively passes through the polymer porous membrane and the supporting layer to enter water so that bubbles are formed. By using the method, the bubbles can be refined, and oxygen transfer efficiency can be increased.
Description
technical field [0001] The invention relates to a gas diffuser used in an aeration system, in particular to a gas diffuser used in an aeration system that can refine air bubbles to increase the efficiency of oxygen transfer. Background technique [0002] Generally, aerobic (biological treatment) sewage or wastewater (wastewater) treatment systems and culture 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 a plurality of gas diffusers, a gas pipeline connected with each gas diffuser and a blower connected with the gas pipeline. The gas diffuser is mostly located at the bottom of the pool or tank. After the blower is used to pressurize the air into the gas pipeline, the air passes through the gas diffuser to form bubbles and enters the water. The gas diffuser has a breathable membrane to diffuse the airflow to increase the gas outlet area,...
Claims
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IPC IPC(8): C02F7/00C02F3/02A01K63/04
CPCY02W10/15Y02W10/10
Inventor 胡衍荣潘黄钦
Owner KANG NA HSIUNG ENTERPRISE CO LTD