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Aerator

A kind of technology of aerator and aerator head, which is applied in chemical instruments and methods, sustainable biological treatment, water/sludge/sewage treatment, etc. Mud is easy to enter the aerator and other problems, to achieve the effect of preventing sludge backflow, simple structure, and flexible movement

Active Publication Date: 2008-05-21
ZHEJIANG DEAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, as time goes by, the rubber is easy to age and harden, and the pore diameter of the micropores on the diaphragm will gradually expand, resulting in the thickening of the generated air bubbles, and the performance of automatic closing will also decrease. After the pore diameter increases, the sewage The sludge in the air will easily enter the aerator, block the gas source pipeline, and affect the normal operation of the entire aerator.

Method used

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] As shown in Figures 1 to 6, the aerator includes a bowl-shaped base 1 with an air inlet 11 at the bottom, a microporous aeration plate 2 arranged at the bowl mouth 12 of the bowl-shaped base 1, A non-return sealing plate 3 below the microporous aeration plate 2, a plurality of movable aeration heads 4 arranged between them, and a cover ring 5 covering the top of the base 1;

[0024] Wherein, there is a distance between the microporous aeration plate 2 and the non-return sealing plate 3, so that the movable aeration head 4 can move up and down between the two;

[0025] The upper part of the movable aerator head 4 has a conical surface 41, and the outer surface of the conical surface 41 is provided with criss-cross air bubble circulation thin grooves 41a, and the top center of the conical surface 41 is also provided with a protrusion 44 ...

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Abstract

The invention relates to an aerator, including a bowl-type base (1), a microporous aerator plate (2), a check close-fitting strip (3) and a plurality of active aeration joints (4). Spacing is arranged between the microporous aerator plate (2) and the check close-fitting strip (3) and helps the active aeration joints (4) move upward and downward limitedly. The upper part of the active aeration joints (4) is equipped with crossing bubble circulating fine grooves (41a), and the lower part is bowl shaped. Bowl-shape communicating holes (31) are evenly distributed on the check close-fitting strip (3). Compared with the prior art, the invention cut the gas source into small bubbles which are easy to be dissolved in water through the active matching of the active aeration joints, the microporous aerator plate and the check close-fitting strip and the cutting fine grooves on conical surfaces of the active aeration joints. Dissolved oxygen is provided and the good aeration effect is guaranteed. At the same time, the invention is provided with a function of preventing the sludge return effectively. The service life of the aerator is prolonged.

Description

technical field [0001] The invention relates to the technical field of sewage biochemical treatment technology, in particular to an aerator for providing dissolved oxygen. Background technique [0002] In petrochemical, printing and dyeing, textile, food, brewing, pharmaceutical, papermaking and other industrial sewage and urban domestic sewage biochemical treatment processes, aerators are widely used because they can provide dissolved oxygen required for biochemical water treatment. At present, common aerators use diaphragm microporous aerators, which generally include a base, a top cover and a rubber diaphragm screwed on the base, wherein the top cover presses the rubber diaphragm on the base In the upper part of the rubber diaphragm, there are many opening and closing micropores. When ventilating, the pressure air source enters the base of the aerator through the pipeline. Under the action of air pressure, the rubber diaphragm bulges up slightly and expands the micropore...

Claims

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Application Information

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IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 俞建德
Owner ZHEJIANG DEAN TECH
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