CN213171699U

CN213171699U - Jet aeration device

Info

Publication number: CN213171699U
Application number: CN202021556327.4U
Authority: CN
Inventors: 郑家庭; 孙孝江; 刘世涛; 孙伟
Original assignee: Suzhou Hokayi Environmental Technology Co ltd
Current assignee: Suzhou Hokayi Environmental Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-11
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a jet aeration device, which comprises a water inlet end, a gas inlet end, a spraying chamber, a mixing chamber and a diffusion chamber; the spraying chamber, the mixing chamber and the diffusion chamber are sequentially connected, the water inlet end is connected with a nozzle, and the nozzle extends into the spraying chamber; the utility model discloses a mixing chamber, including the room that spouts, the end of intaking is connected on the blowout room, is located the nozzle side, and the direction of admitting air is perpendicular with the direction of intaking, the nozzle is coniform, coaxial cover is equipped with a net section of thick bamboo on the nozzle end, a net section of thick bamboo is a taper section of thick bamboo, has the first main aspects of connecting on the indoor wall of blowout and surpasss the first tip that the nozzle end extends to the mixing chamber direction. The utility model discloses a first net section of thick bamboo is established to the cover on the nozzle, and from the partial meeting of nozzle department spun, this part is cut apart into tiny rivers by a net section of thick bamboo, has increased the area, is favorable to carrying out abundant mixture with the air current of inlet end. The mixing degree and the mixing efficiency of the gas and the water are improved.

Description

Jet aeration device

Technical Field

The utility model belongs to laver sewage treatment field, concretely relates to efflux aeration equipment.

Background

The current environment faces a great challenge, the pollution of urban sewage is more severe, and more advanced and rapid sewage treatment technology is needed.

The blast aeration is a technology of dispersing air sent by a blower into a plurality of fine bubbles and mixing the fine bubbles into water by an aeration device, and the treatment effect, efficiency and cost of a sewage treatment device are often determined by the aeration effect of the aeration device. The traditional jet aeration device has the defects of poor air and sewage mixing effect, unsatisfactory oxygenation capacity, poor pushing performance of a jet boundary area and small service area, and is an important problem to be solved in a plurality of sewage treatment projects.

Disclosure of Invention

The utility model provides a efflux aeration equipment to present not enough.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a jet aeration device comprises a water inlet end, a gas inlet end, an ejection chamber, a mixing chamber and a diffusion chamber; the spraying chamber, the mixing chamber and the diffusion chamber are sequentially connected, the water inlet end is connected with a nozzle, and the nozzle extends into the spraying chamber; the end connection of intaking is on the blowout room, is located the nozzle side, and the direction of admitting air is perpendicular with the direction of intaking, its characterized in that: the nozzle is conical, a first net barrel is coaxially sleeved on the tail end of the nozzle, the first net barrel is a conical barrel and is provided with a first large end connected to the inner wall of the spraying chamber and a first small end which exceeds the tail end of the nozzle and extends towards the direction of the mixing chamber.

Preferably, a second net cylinder is arranged in the mixing chamber, and the second net cylinder is a cone-shaped cylinder and is provided with a second large end which is arranged on the inner wall of the mixing chamber and faces the diffusion chamber and a second small end which faces the mixing chamber.

Preferably, the second small end of the second net drum is inserted into the first small end of the first net drum.

Preferably, a transition chamber is arranged between the ejection chamber and the mixing chamber, and the first small end of the first net cylinder and the second small end of the second net cylinder extend into the transition chamber.

Preferably, the mixing chamber has a smaller cross-section than the ejection chamber, and the transition chamber has a conical shape.

Preferably, a secondary air inlet end is arranged on the transition chamber.

Preferably, the mesh of the first mesh drum is smaller than the mesh of the second mesh drum.

The technical scheme can obtain the following beneficial effects:

the utility model discloses a first net section of thick bamboo is established to cover on jet aeration equipment's the nozzle, and from the partial meeting of nozzle department spun, this part is cut apart into tiny rivers by a net section of thick bamboo, has increased the area, is favorable to carrying out abundant mixture with the air current of inlet end. The mixing degree and the mixing efficiency of the gas and the water are improved.

Drawings

Fig. 1 is a schematic diagram of the present invention.

In the figure:

1. impeller, 11, nozzle, 2, blowout chamber, 3, air inlet pipe, 4, mixing chamber, 5, diffusion chamber, 6, transition chamber, 7, first net barrel, 71, first big end, 72, first small end, 8, second net barrel, 81, second big end, 82, second small end, 9, secondary air inlet end.

Detailed Description

The invention will be further explained with reference to the drawings:

the utility model discloses a jet aeration device, which comprises a water inlet end, a gas inlet end, an ejection chamber 2, a mixing chamber 4 and a diffusion chamber 5; the spraying chamber 2, the mixing chamber 4 and the diffusion chamber 5 are sequentially connected, the water inlet end is connected with a nozzle 11, and the nozzle 11 extends into the spraying chamber 2; the water inlet end is connected to the spraying chamber 2 and located on the side face of the nozzle 11, the impeller 1 is arranged at the water inlet end and connected with the spraying chamber 2 through a flange, and water flow is pushed into the nozzle 11 through the impeller 1; the air inlet direction is approximately vertical to the water inlet direction, the nozzle 11 is conical, water flow is gradually extruded in the nozzle 11 and then sprayed out, the first net barrel 7 is coaxially sleeved on the tail end of the nozzle 11, after the water is sprayed out of the nozzle 11, the outermost water penetrates through the first net barrel 7 and is cut into a large number of fine flows by meshes on the first net barrel 7, the total surface area of the water flow is increased, the air inlet end is provided with the air inlet pipe 3, the air flow is sent into the spraying chamber 2 and is mixed with the water flow in the spraying chamber 2. The first net cylinder 7 is a cone-shaped cylinder and is provided with a first large end 71 connected to the inner wall of the spraying chamber 2 and a first small end 72 which exceeds the tail end of the nozzle 11 and extends towards the direction of the mixing chamber 4, the installation is firm, the cutting water flow is maximized, and the air-water mixing effect is improved. After passing through the ejection chamber 2 and the mixing chamber 4, the water and the air are sufficiently mixed and finally flow into the diffusion chamber 5.

The mixing chamber 4 is provided with a second mesh cylinder 8, and the second mesh cylinder 8 is a cone-shaped cylinder and is provided with a second large end 81 which is arranged on the inner wall of the mixing chamber 4 and faces the diffusion chamber 5 and a second small end 82 which faces the mixing chamber 4. The water flow and the air flow which are gushed out from the spraying chamber 2 enter the mixing chamber 4, the water flow and the air flow touch the second mesh cylinder 8 in the mixing chamber 4, the second mesh cylinder 8 cuts the water flow again, the water flow is dispersed into a lot of small fine flows, the air and the water are fused again, and the mixing efficiency is improved. The second net cylinder 8 is a cone-shaped cylinder, and the small end faces to the direction of water flow and air flow inrush, so that no extra large resistance is caused to the water flow and the air flow.

The second small end 82 of the second net drum 8 is inserted into the first small end 71 of the first net drum 7. The middle water flow sprayed from the nozzle 11 is sprayed to the second small end 82 of the second net cylinder 8, and is cut into a plurality of small fine flows through the second net cylinder 8, and the air and the water can be mixed again. The first net cylinder 7 and the second net cylinder 8 are arranged in a mode that small ends face each other, water flow is cut from outside to inside, and the area of air water is increased.

A transition chamber 6 is arranged between the ejection chamber 2 and the mixing chamber 4, and the first small end 72 of the first net cylinder 7 and the second small end 82 of the second net cylinder 8 extend into the transition chamber 6. In the transition chamber 6, the first net drum 7 and the second net drum 8 are in a crossed relationship, and fully cut and crush the water flow.

The section of the mixing chamber 4 is smaller than that of the spraying chamber 2, the transition chamber 6 is conical, and the conical transition chamber 6 can guide water flow into the mixing chamber 4, so that further mixing is facilitated.

The transition chamber 6 is provided with a secondary air inlet end 9. The transition chamber 6 plays a role of bearing the upper part and the lower part, the small ends of the first net cylinder 7 and the second net cylinder 8 are crossed at the position, basically, fine water flows are formed, and a secondary air inlet end 9 is arranged at the position to supplement air flows so as to fully mix water and vapor.

The mesh of the first wire cylinder 7 is smaller than the mesh of the second wire cylinder 8. Since the smaller the mesh, the greater the resistance of the first wire cylinder 7 is than the resistance of the second wire cylinder 8, the first wire cylinder 7 also functions to divert the water flow onto the second wire cylinder 8.

The above description is the preferred embodiment of the present invention, and for those skilled in the art, modifications of the various equivalent forms of the present invention are within the scope of the appended claims of the present application without departing from the principle of the present invention.

Claims

1. A jet aeration device comprises a water inlet end, a gas inlet end, an ejection chamber, a mixing chamber and a diffusion chamber; the spraying chamber, the mixing chamber and the diffusion chamber are sequentially connected, the water inlet end is connected with a nozzle, and the nozzle extends into the spraying chamber; the end connection of intaking is on the blowout room, is located the nozzle side, and the direction of admitting air is perpendicular with the direction of intaking, its characterized in that: the nozzle is conical, a first net barrel is coaxially sleeved on the tail end of the nozzle, the first net barrel is a conical barrel and is provided with a first large end connected to the inner wall of the spraying chamber and a first small end which exceeds the tail end of the nozzle and extends towards the direction of the mixing chamber.

2. A jet aeration device according to claim 1, wherein: install the second net section of thick bamboo in the mixing chamber, the second net section of thick bamboo is a cone section of thick bamboo, has the second main aspects of installing on the mixing chamber inner wall and towards the diffusion chamber and the second tip towards the mixing chamber.

3. A jet aeration device according to claim 2, wherein: the second small end of the second net drum is inserted into the first small end of the first net drum.

4. A jet aeration device according to claim 3, wherein: a transition chamber is arranged between the spraying chamber and the mixing chamber, and a first small end of the first net cylinder and a second small end of the second net cylinder extend into the transition chamber.

5. A jet aeration device according to claim 4, wherein: the cross section of the mixing chamber is smaller than that of the spraying chamber, and the transition chamber is conical.

6. A jet aeration device according to claim 4, wherein: and a secondary air inlet end is arranged on the transition chamber.

7. A jet aeration device according to claim 1, wherein: the meshes of the first net barrel are smaller than the meshes of the second net barrel.