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Matched double-layer propeller for water aeration and method

A propeller and aeration technology, which is applied in chemical instruments and methods, energy wastewater treatment, oxidized water/sewage treatment, etc., can solve the problems affecting the oxygen enrichment effect of water body and is not conducive to diffusion, so as to improve water quality and water ecological environment, Effect of promoting diffusion dissolution and increasing dissolved oxygen content

Inactive Publication Date: 2017-06-30
SHANDONG WATER & WASTEWATER MONITORING CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air entering the water body is relatively concentrated, which is not conducive to diffusion, thus affecting the oxygen enrichment effect of the water body

Method used

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  • Matched double-layer propeller for water aeration and method
  • Matched double-layer propeller for water aeration and method
  • Matched double-layer propeller for water aeration and method

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Embodiment Construction

[0024] The present invention will be specifically described below in conjunction with the accompanying drawings and embodiments.

[0025] figure 1 Shown is a schematic structural view of the wind-powered water body aeration propeller of the present invention.

[0026] The invention comprises a hollow shaft 1 and a propeller blade 2 .

[0027] The propeller blade 2 includes an upper blade 5 and a lower blade 6, the upper blade 5 and the lower blade 6 are arranged in two groups of crossing up and down, the center line is evenly distributed at 45-90°, the radius of the upper blade 5 and the lower blade 6 and the blade The numbers are the same, and the angle difference of the outlets is 10-15°.

[0028] figure 2 Shown is the invention figure 1 X-X section schematic diagram.

[0029] image 3 Shown is the invention figure 1 The Y-Y cross-sectional schematic diagram.

[0030] The upper blade 5 and the lower blade 6 are welded to the aeration tube 3 along the direction of ro...

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Abstract

The invention discloses a matched double-layer propeller for water aeration and a method. The propeller comprises a hollow shaft and propeller blades. The propeller blades comprise a set of upper blades and a set of lower blades which are arranged in a staggered mode, the central lines of the blades are uniformly distributed at 45-90 degrees, the radius of the upper blades is equal to that of the lower blades, the number of the upper blades is equal to that of the lower blades, and the angle difference of the outlet parts of the upper blades and the lower blades is 10-15 degrees. Aeration pipes are welded to the upper blades and the lower blades in the rotation direction of the upper blades and the lower blades, and a plurality of aeration holes are formed in each aeration pipe. One end of each aeration pipe is communicated with the hollow shaft, and the rotation angle of the open part at the other end of each aeration pipe is 40-80 degrees. The diameter of the aeration pipes is 15-50 mm, the diameter of the aeration holes is 0.5-0.8 time that of the aeration pipes, and the interval between the aeration holes is 3-5 times the diameter of the aeration holes. Due to the arrangement of the multi-hole aeration pipes, the contact area of air and water is increased, the self-cleaning capacity of water is improved, and a significant improvement effect on the water ecological environment is achieved.

Description

technical field [0001] The invention relates to a double-layer propeller device and an aeration and oxygenation method, in particular to a supporting propeller device and an aeration and oxygenation method for aeration and oxygenation for the treatment of black and odorous water bodies. Background technique [0002] In recent years, with the rapid development of my country's urban economy, the scale of the city is expanding day by day, the urban environmental infrastructure is increasingly insufficient, the discharge of urban sewage continues to increase, a large number of pollutants enter the river, and the chemical oxygen demand (COD) and nitrogen in the water body The concentrations of pollutants such as (N) and phosphorus (P) exceed the standard, the water body of the river is seriously polluted, and the water body appears black and smelly seasonally or all the year round. The ecosystem structure of urban black and odorous water bodies is seriously unbalanced, which bring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/00B01F1/00C02F1/74
CPCC02F1/74B01F21/10B01F27/113Y02W10/33Y02W10/37
Inventor 贾瑞宝陈发明孙韶华宋武昌
Owner SHANDONG WATER & WASTEWATER MONITORING CENT
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