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Differential double-impeller underwater fine-bubble aeration device and method thereof

A technology of aeration device and double impeller, applied in the field of water pollution control, can solve the problems of large bubbles, poor dissolved oxygen efficiency, short gas-liquid contact time, etc.

Pending Publication Date: 2018-09-07
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above processes all have the technical problems of large bubbles, short gas-liquid contact time, and poor dissolved oxygen efficiency existing in the existing impeller aeration technology.

Method used

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  • Differential double-impeller underwater fine-bubble aeration device and method thereof
  • Differential double-impeller underwater fine-bubble aeration device and method thereof
  • Differential double-impeller underwater fine-bubble aeration device and method thereof

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Embodiment 1

[0040] Such as Figure 1~3 , A differential dual-impeller underwater microbubble aeration device, installed on a horizontal platform 1, including a motor 2 vertically installed on the platform 1, with a speed greater than 3000 rpm, and also including a transmission shaft connected to the motor 2 Shaft 3, a base 72 installed at the bottom of the water, the base 72 vertically corresponds to the position of the motor 2, a base 72 bearing is provided in the center of the base 72, and the transmission shaft 3 is connected to the base 72 through the base 72 bearing;

[0041] The device also includes a high-speed impeller 61 and a reducer 62 installed at the bottom of the drive shaft 3. The low-speed impeller 63 and the high-speed impeller 61 are at the same height; the surface of the high-speed impeller 61 is provided with a plurality of tiny protrusions; The low-speed impeller 63 at the output end of the reducer 62 also includes a baffle 8 arranged below the high-speed impeller 61 and...

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Abstract

The invention relates to the field of water pollution control, and particularly provides differential double-impeller underwater fine-bubble aeration device and method thereof. The device comprises amotor arranged on a platform and an underwater base, wherein a drive shaft is arranged between the motor and the bearing of the base to be taken as power source of an aeration impeller; a high speed impeller directly connected with the drive shaft and a low speed impeller connected with the drive shaft by a speed reducer are arranged at the bottom of the drive shaft; a spoiler is arranged at the lower part of each of the two impellers, a guide cylinder is arranged at the upper part of each impeller, the impellers rotate to sputter water and gas to the horizontal direction, to form a vacuum state, so that gas and water are sucked into the guide cylinder; and an annular buoy for regulating water-gas ratio is arranged above the guide cylinder. The invention also provides a method for debugging specific parameters of the device. Aiming at the technical problems of large bubbles, short gas-liquid contact time and poor oxygen dissolving efficiency of existing impeller aeration technology, the invention provides a simple and reliable solution.

Description

Technical field [0001] The invention belongs to the field of water pollution control, and specifically relates to a differential dual-impeller underwater microbubble aeration device and a method thereof. Background technique [0002] Impeller aeration equipment refers to a surface aeration device in which the impeller is arranged on the water surface for oxygen supply and stirring in the water treatment process, and the impeller rotation and stirring are used to drive the air and water to mix. Ordinary impeller aeration has the same meaning as vertical shaft mechanical aeration device, including pump impeller aerator, K impeller aerator, inverted umbrella impeller aerator and flat impeller aerator. During impeller aeration, the speed of the impeller is generally fast. Vigorous agitation makes the oxygen in the air quickly transfer to the water. The stirring of the impeller also causes the water flow in the aeration area to spread around, so the impeller aeration generally serves ...

Claims

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Application Information

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IPC IPC(8): C02F7/00
CPCC02F7/00Y02W10/10
Inventor 唐玉朝唐义潘法康李昭君伍昌年李卫华
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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