Unlock instant, AI-driven research and patent intelligence for your innovation.

Vane wheel of surface aerator

A surface aerator and impeller technology, applied in water aeration, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve problems such as low power efficiency, turbulent flow direction, and poor aeration effect. Achieve the effect of improving power efficiency and reducing power consumption costs

Active Publication Date: 2007-06-27
中冶生态环保集团有限公司
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the blades can only push and rotate the water, the impact of the blades on the water causes bubbles to break up and the flow direction is disordered. When the dissolved oxygen on the surface reaches a certain value, it is difficult to increase it, resulting in poor aeration effect and low power efficiency. Generally, it can only reach 1.6-2.4kgO 2 / kWh, the highest can only reach 2.5-2.6kgO 2 / kW·h, so that the cost of energy consumption in the cost of urban sewage treatment in my country remains high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vane wheel of surface aerator
  • Vane wheel of surface aerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] As shown in Figure 1 and Figure 2, the impeller of the surface aerator is mainly composed of the impeller body and the blade 4. The impeller body is in the shape of an inverted umbrella and is composed of the skeleton support surface 2 and the cone 3. The angle at the top of the cone 3 is 120-150 degrees, the middle part is provided with a central through hole 1. The blades 4 are radially fixed on the concave and convex surfaces of the cone 3 of the impeller body, and can be fixed by welding, riveting or bolts. The cone 3 of the impeller body is radially evenly distributed with water injectors 9, and the water injectors 9 can be fixed on the concave surface of the cone 3, or can be fixed on the convex surface of the cone 3, or embedded in the cone surface .

[0015] Gas-liquid mixing tubes 7 are evenly distributed radially on the convex surface of the cone above the skeleton supporting surface 2 of the impeller body, and several suction through holes 8 are arranged on ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
angleaaaaaaaaaa
Login to View More

Abstract

The vane wheel of surface aerator includes a vane wheel body and radial vanes fixed onto the vane wheel body. The conic vane wheel body has radial water jetting devices comprising jet nozzle with inlet communicated to central hole of the vane wheel body, vacuum sucking chamber with sucking hole communicated to the concave surface of the conic vane wheel body, and air-liquid mixing diffuser connected successively and coaxially. During operation of the surface aerator, the water jetting devices lift water from the shallow and medium layers to spray for negative pressure sucking diffusion, and this raises the oxygen inflating capacity greatly.

Description

technical field [0001] The invention relates to an impeller of a surface aerator for sewage treatment aeration and oxygenation. Background technique [0002] The surface aerator is the key equipment used in the oxidation ditch of the urban sewage treatment project. The impeller of the traditional inverted umbrella surface aerator is shaped like a paper umbrella opened upside down. It is installed on the water surface of the oxidation ditch. The mechanical deceleration drives the rotation, relying on several blades on the impeller to scrape water and push the flow to wrap the air, and rely on oxygen to dissolve the oxidized organic matter in the water to achieve the purpose of water purification. Because the blades can only push and rotate the water, the impact of the blades on the water causes bubbles to break up and the flow direction is disordered. When the dissolved oxygen on the surface reaches a certain value, it is difficult to increase it, resulting in poor aeration e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/24C02F7/00
CPCY02W10/10
Inventor 张鑫珩
Owner 中冶生态环保集团有限公司