Axial-flow inverted umbrella aerator

An aerator and axial flow technology, applied in the field of axial flow inverted umbrella aerator, can solve the problem that the oxygenation process is limited to the surface of the water body, and achieve the effect of improving the use efficiency and dissolved oxygen rate, and changing the lifting efficiency

Active Publication Date: 2015-03-25
HEFEI UNIV OF TECH +1
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  • Abstract
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an axial-flow inverted umbrella aerator, which can overcome the problem that the oxygenation process of the existing inverted umbrella aerator is limited to the surface of the water body, and realize The upward ascension of the deep water body improves the efficiency of the aeration equipment and the dissolved oxygen rate

Method used

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  • Axial-flow inverted umbrella aerator

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] Such as figure 1 As shown, the axial-flow inverted umbrella aerator of the present invention includes a motor drive device, an output shaft, and an aeration impeller; the drive device is connected to the aeration impeller through the output shaft, and drives the aeration impeller to rotate.

[0021] The aeration impeller includes an impeller shaft 1 , a key 2 , an axial flow vane hub 3 , an axial flow vane 4 , a positioning screw 5 , a limit nut 6 , an adjustment screw 7 and an aeration vane 8 . The aeration blade 8 , the hub 3 of the axial flow blade and the limit nut 6 are arranged coaxially on the impeller shaft 1 sequentially from top to bottom. The hub 3 of the axial flow blade is keyed to the impeller shaft 1 through the key 2; the limit nut 6 is screwed to the impeller shaft 1. The axial blades 4 are arranged on the outer wall of the axial blade hub 3 .

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Abstract

The invention provides an axial-flow inverted umbrella aerator which comprises a driving device, an output shaft and an aeration impeller. The driving device is connected with the aeration impeller through the output shaft and drives the aeration impeller to rotate, the aeration impeller comprises an impeller shaft, a key, an axial-flow blade hub, axial-flow blades, limiting nuts and aeration blades. Water with less oxygen content at the bottom of an aeration tank can be lifted and circulated upwards by the aid of the axial-flow blades, a gas phase of oxygen is transferred into a liquid phase, so that the oxygen and the water are sufficiently and uniformly mixed, the heights and the angles of the axial-flow blades can be adjusted by adjusting positioning screws and adjusting screws according to the height of a liquid level and medium characteristics, and the functions of the aerator are sufficiently played.

Description

technical field [0001] The invention relates to sewage biological treatment equipment, in particular to an axial-flow inverted umbrella aerator. Background technique [0002] Aeration equipment is the key equipment for water biological pretreatment and sewage biological treatment. The traditional inverted umbrella aerator dissolves the oxygen in the air into the water through the rotation of the aeration impeller. When the aeration impeller rotates on the surface of the water body, a hydraulic jump is generated, and a large number of water droplets and flake water curtains are thrown into the air. The full contact between the water and the air makes oxygen dissolve into the water body. At present, the oxygenation process of the inverted umbrella aerator is limited to the surface of the water body due to structural reasons. In order to achieve the purpose of fully mixing and oxygenating the aeration tank, other fluid mechanical equipment must be used to form an effective wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F7/00
CPCC02F3/02C02F7/00Y02W10/10
Inventor 陈斌陈晓军张华王炳祺李慧
Owner HEFEI UNIV OF TECH
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