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Broken stream type aerating apparatus of laying air in two layers

A technology of aeration device and air distribution, which is applied in aeration device, double-layer air-distributing diffuse-flow aeration device, and sewage biochemical treatment engineering field, can solve the problem of insufficient uniform aeration, aeration dead zone, and poor dissolved oxygen performance. It can improve the dissolved oxygen performance, avoid dead zone, uniform gas change and scouring effect.

Inactive Publication Date: 2006-07-05
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0003] The technical problems in the prior art to be solved by the present invention are: in the prior art, the aerator cannot perform multiple intensive cuttings, so that the gas change is not uniform enough, there is an aeration dead zone, and the oxygen-dissolving performance is not good

Method used

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  • Broken stream type aerating apparatus of laying air in two layers
  • Broken stream type aerating apparatus of laying air in two layers
  • Broken stream type aerating apparatus of laying air in two layers

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Embodiment Construction

[0013] Such as figure 1 , figure 2 and image 3 As shown, a double-layer air distribution and diffuse flow aeration device of the present invention includes a zigzag air distribution head 1, and the zigzag air distribution head 1 is provided with a sawtooth air distribution plate 2 and an air distribution plate 2 on the periphery. The upper end surface of the board is vertically connected with a flow guide partition 3, wherein a zigzag diffuser 4 is covered on the zigzag air distribution head 1, and the zigzag diffuser 4 is concave Disc shape, and is provided with a plurality of sawtooth around it, and said sawtooth diffuser cover 4 is connected with the sawtooth air distribution head 1 through the center pipe 5 at its center.

[0014] Further, a plurality of small aeration holes 6 are provided in the middle of the zigzag diffuser 4 .

[0015] Further, 60 sawtooths are arranged around the sawtooth diffuser 4 .

[0016] Furthermore, 12 small aeration holes 6 are provided i...

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Abstract

This invention involves a double-layer air-distribution and stream-diffusion aeration device, including a sawteeth-shaped air-distribution head that is composed of a sawteeth-containing air-distribution board at the circumference and a stream-diversion plate perpendicular to the upper surface of the air-distribution board. The characteristics of the device are: the said sawteeth-shaped air-distribution board is covered with a sawteeth-shaped stream-diffusion cap that is an inside recessing disc, and at its circumference are even-numbered sawteeth. The said sawteeth-shaped stream-diffusion cap and the said sawteeth-shaped air-distribution board are connected with a central tube at their centers. Compared with the present processes, this invention has positive and apparent effects. The adoption of a large-diameter sawteeth-shaped stream-diffusion cap for the secondary cutting leads to the homogeneous air changing and washing in the aeration zone, avoiding the dead space and improves the capacity in dissolving oxygen.

Description

Technical field: [0001] The invention relates to a water treatment device, in particular to a sewage biochemical treatment project, in particular to an aeration device, in particular to a double-layer air distribution diffuse flow type aeration device. Background technique: [0002] In the prior art, aerators are widely used in petrochemical, printing and dyeing, textile, food, brewing, pharmaceutical, tanning, papermaking and other industrial sewage and urban domestic sewage biochemical treatment projects, such as diffuse flow aerators, when treating sewage , the gas is fed from the top to the bottom by the central tube of the aerator, and the gas is cut by the zigzag cloth gas head, so that the water-gas mixture can be evenly diffused and rise, and the transfer coefficient of oxygen can be increased. However, the existing aerators generally only perform one gas cutting, and cannot perform multiple intensive cuttings, which makes the gas change not uniform enough, and there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F3/20
CPCY02W10/10
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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