CN112358036A

CN112358036A - Unpowered rotary aerator

Info

Publication number: CN112358036A
Application number: CN202011039457.5A
Authority: CN
Inventors: 杨霆; 吴卫; 邱敬贤; 何曦
Original assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Current assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-02-12

Abstract

The invention discloses an unpowered rotary aerator which comprises a high-pressure water inlet pipe, a contraction pipe and a jet pipe, wherein the bottom end of the high-pressure water inlet pipe is butted with the large-diameter end of the contraction pipe, the top end of the jet pipe is rotationally connected with the small-diameter end of the contraction pipe, and the bottom end of the jet pipe is sealed and connected with a stirring paddle; the middle part of high pressure inlet tube is equipped with the intake pipe, the lateral part of efflux pipe is equipped with the efflux export, the efflux export with the pipe wall level of efflux pipe is tangent. The unpowered rotary aerator has the advantages of large aeration action area and good oxygenation effect.

Description

Unpowered rotary aerator

Technical Field

The invention belongs to the technical field of water treatment, and particularly relates to an unpowered rotary aerator.

Background

The aerator is a common device in aeration and oxygenation in an aerobic section of sewage treatment, gas and liquid are conveyed into the aerator, and the gas and the liquid are mixed and then discharged out of the aerator, so that the aeration function is realized, and the better gas utilization rate is required to be achieved.

The aerator is a key device of an aerobic section of sewage treatment and is mainly used for treating polluted water by adopting a biochemical treatment process. Common aeration devices can be mainly classified into aeration discs, aeration pipes, cyclone aerators, jet aerators, surface aerators, and the like.

Jet aeration is a mode of aeration and oxygenation in sewage treatment, compared with other aeration modes, the jet aeration hardly causes blockage due to the particularity of the structure and the aeration mode, has long service life, hardly needs maintenance and cleaning, and can supply oxygen constantly, stably and efficiently.

The existing jet type aeration method can not ensure that air is fully contacted with water, and only aerates a water body from a single dimension, so that the aeration range is limited, and the sewage treatment effect is poor.

Disclosure of Invention

The invention mainly aims to provide a powerless rotary aerator with large aeration action area and good oxygenation effect.

In order to achieve the purpose, the following technical scheme is adopted in the application:

an unpowered rotary aerator comprises a high-pressure water inlet pipe, a contraction pipe and a jet pipe, wherein the bottom end of the high-pressure water inlet pipe is butted with the large-diameter end of the contraction pipe, the top end of the jet pipe is rotatably connected with the small-diameter end of the contraction pipe, and the bottom end of the jet pipe is sealed and connected with a stirring paddle;

the middle part of high pressure inlet tube is equipped with the intake pipe, the lateral part of efflux pipe is equipped with the efflux export, the efflux export with the pipe wall level of efflux pipe is tangent.

Specifically, the jet flow outlet is arranged on the jet flow pipe in parallel.

Specifically, the jet pipe is connected with the contraction pipe through a bearing.

Specifically, the axes of the high-pressure water inlet pipe, the contraction pipe, the jet pipe and the air inlet pipe are overlapped.

Specifically, the air inlet pipe is connected with an air compressor.

Specifically, the bottom end of the air inlet pipe is provided with a microporous plate.

Compared with the prior art, the invention has the beneficial effects that:

the aerator drives the jet pipe and the stirring paddle to rotate by means of the reaction force of jet flow to stir the water body, so that the aerator has the functions of aeration and water body stirring simultaneously, the aeration action area is increased, the oxygenation efficiency is effectively increased, the sewage treatment effect is greatly improved, and an additional stirring motor is not required.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a non-powered rotary aerator according to an embodiment of the present invention;

wherein: 1, an air inlet pipe; 2-high pressure water inlet pipe; 3-a shrink tube; 4. 5, 6-jet outlet; 7-a jet pipe; 8-stirring paddle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an unpowered rotation type aerator, including high pressure inlet tube 2, shrink pipe 3 and efflux pipe 7, the bottom of high pressure inlet tube 2 and the butt joint of big footpath end of shrink pipe 3, the top of efflux pipe 7 passes through bearing (not shown in the figure) with the path end of shrink pipe 3 and rotates and is connected, the bottom of efflux pipe 7 seals to be set up and is connected with stirring rake 8, the middle part of high pressure inlet tube 2 is equipped with intake pipe 1, the lateral part of efflux pipe 7 is provided with a plurality of efflux exports 4 side by side, 5, 6,

efflux export

4, 5, 6 is tangent with the pipe wall level of efflux pipe 7.

Wherein, the axis coincidence of high pressure inlet tube 2, shrink tube 3, efflux pipe 7 and intake pipe 1, the lower extreme horizontal plane of intake pipe 1 is parallel with the cross-section on the shrink tube 3, and intake pipe 1 external air compressor (not shown in the figure) to send into compressed air in the intake pipe 1.

This embodiment drives jet pipe 7 and 8 rotations of stirring rake with the help of fluidic reaction force for stir the water, makes this aerator possess the function of aeration and water stirring simultaneously, and then has increased the aeration area of action, and the effectual oxygenation efficiency that has increased has promoted the sewage treatment effect greatly, need not additionally to be equipped with agitator motor moreover.

In practical application, the micropore board (not shown in the figure) can also be installed to the bottom at intake pipe 1, and the equipartition has the micropore of millimeter level on the micropore board, produces tiny bubble when making compressed air pass through, promotes the mixed effect of gas and water.

Referring to fig. 1, the unpowered rotary aerator according to the embodiment of the present application operates as follows: water pressed in by an external water pump enters through a high-pressure water inlet pipe 2 and is mixed with compressed air blown into an air inlet pipe 1 by an external air compressor at the cross section of a contraction pipe 3; the microporous plate at the tail end of the air inlet pipe 1 enables compressed air to generate fine bubbles when passing through the microporous plate, and improves the mixing effect of the air and the water body; the flow rate of the high-pressure water flow mixed with air is further improved after passing through the contraction pipe 3, in the process of the component, vortex is generated inside the water flow, bubbles are continuously cut under the action of the vortex of the water flow, and the total number of the bubbles is continuously increased; the contact area with the water body is further increased; thereafter, high-pressure water flows out through efflux export efflux, produces the counter force along tangential direction to efflux pipe 7 in the efflux, and under the effect of this counter force, 7 reverse rotations of efflux pipe drive the rotation of bottom stirring rake 8 to produce the stirring effect to polluting the water.

This application embodiment is need not additionally to be equipped with agitator motor under the prerequisite, makes the rotatory stirring leaf rotation of drive of efflux pipe 7 with the help of the reaction force of efflux to reach the purpose of stirring water. The aerator has the function of stirring water body in the aeration process, so that the aeration action area in the aeration process of the aerator is larger than the aerators of the same type, the oxygenation efficiency is effectively increased, and the sewage treatment effect is greatly improved.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. The unpowered rotary aerator comprises a high-pressure water inlet pipe, a contraction pipe and a jet pipe, and is characterized in that: the bottom end of the high-pressure water inlet pipe is butted with the large-diameter end of the contraction pipe, the top end of the jet pipe is rotationally connected with the small-diameter end of the contraction pipe, and the bottom end of the jet pipe is sealed and connected with a stirring paddle;

2. The unpowered rotary aerator of claim 1, wherein: the jet flow outlet is arranged on the jet flow pipe side by side.

3. The unpowered rotary aerator of claim 1, wherein: the jet pipe is connected with the contraction pipe through a bearing.

4. The unpowered rotary aerator of claim 1, wherein: and the axes of the high-pressure water inlet pipe, the shrinkage pipe, the jet pipe and the air inlet pipe are overlapped.

5. The unpowered rotary aerator of claim 1, wherein: the air inlet pipe is connected with an air compressor.

6. The unpowered rotary aerator of claim 1, wherein: and a microporous plate is arranged at the bottom end of the air inlet pipe.