CN201999803U - Micropore aerator - Google Patents

Abstract

The utility model discloses a microporous aerator, which comprises an aerator body (3), a diaphragm (1) whose periphery is sealed and connected with the aerator body (3), and the diaphragm (1) and the aerator The air storage chamber (4) is formed between the body (3), the diaphragm (1) is provided with micropores (7) that pass through its upper and lower end surfaces and connect to the air storage chamber (4), and the aerator body (3) An air intake pipe (5) connected to the air storage cavity (4) is provided. The utility model adopts the above-mentioned structure, the overall structure is simple, the efficiency of aeration is improved, and the phenomenon of backflow of sewage can be prevented, so that the utility model and the air pipe can be prevented from being damaged due to the inflow of sewage.

Description

A microporous aerator

technical field

The utility model relates to an aeration device, in particular to a microporous aerator.

Background technique

The aerobic biological treatment unit of sewage treatment needs to supply oxygen to sewage. Nowadays, it is generally used to supply oxygen to sewage by blowing air into sewage, and the most commonly used equipment for blowing air into sewage is an aerator connected to an air pipe. When the fan in the air pipe of the existing aerator stops supplying air, due to the influence of the negative pressure in the aerator, it is easy for the sewage to flow back into the aerator, and the sewage flowing into the aerator can easily enter the air. In the tube, this makes the aerator and the air tube vulnerable to damage, thereby reducing the service life of the aerator and the air tube.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a microporous aerator that can prevent sewage from flowing back when the fan of the air pipe stops supplying air.

The purpose of this utility model is mainly achieved through the following technical solutions: a microporous aerator, including the aerator body, and a diaphragm that is sealed and connected to the aerator body around the periphery, and a storage tank is formed between the diaphragm and the aerator body. In the air chamber, the diaphragm is provided with micropores passing through its upper and lower end surfaces and connected to the air storage chamber, and the aerator body is provided with an air inlet pipe connected to the air storage chamber. Wherein, the number of micropores is set to be multiple, and all the micropores are evenly distributed on the membrane.

A non-return device is provided in the air storage chamber, the non-return device includes a rubber non-return body, and a non-return lower end body that connects the air flow between the air storage chamber and the intake pipe, and the upper end of the rubber non-return body is connected to the membrane The sheet is sealed and connected, and its lower end is in sealing contact with the upper end of the non-return lower end body. The size of the non-return lower end body matches the size of the air intake pipe, and its lower end is connected to the air intake pipe.

The upper end of the non-return lower body is funnel-shaped, and the lower end of the rubber non-return body is conical in size and shape matching the funnel-shaped upper end of the non-return lower body.

The non-return lower end body is a hollow cylindrical connecting pipe.

The outer wall of the air intake pipe is provided with a connecting thread, and the utility model is connected with the air pipe through the connecting thread.

The working principle of the utility model: the intake pipe of the utility model is connected with the air tube through the connecting thread arranged on its outer wall. When the fan of the air tube is working, the air tube inputs air to the utility model, and the air enters the lower end of the non-return through the intake tube. In the body, the air pressure in the check lower end body acts on the rubber check body, and makes the rubber check body and the check lower end body no longer in sealing contact, and the air enters the air storage chamber, and as it enters the air storage chamber As the air increases, the air pressure acting on the diaphragm increases, so that the diaphragm is convex and drives the rubber-like check body to move upward, the micropores on the diaphragm are opened, and the air enters the sewage through the micropores; when the fan of the air pipe stops When working, the air pipe stops inputting air to the utility model. With the discharge of air in the air storage chamber, the air pressure in the air storage chamber and the lower end of the non-return body decreases. Driven by the diaphragm, the rubber non-return body moves downward. , the rubber non-return body restores the sealing contact with the non-return lower end body.

Compared with the prior art, the utility model has the following advantages and beneficial effects: (1) the diaphragm of the utility model is provided with micropores. When the utility model does not blow air into the sewage, the micropores of the diaphragm shrink and close, thereby It can effectively prevent the sewage from flowing back into the utility model, and prevent the sewage from entering the aerator and the air pipe; when the utility model blows air into the sewage, the air output from the air storage chamber passes through the micropores to form tiny air bubbles and enters the utility model. Into the sewage, the air bubbles increase the contact area between the discharged air and the sewage, thereby improving the aeration efficiency.

(2) The utility model is equipped with a rubber non-return body and a non-return lower end body. When there is no air circulation in the utility model, the rubber non-return body and the non-return lower end body are in sealing contact, thereby further preventing sewage from entering into the utility model. connected air tube.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic cross-sectional structure diagram of FIG. 1 .

The names corresponding to the reference signs in the attached drawings are: 1. Diaphragm, 2. Non-return lower end body, 3. Aerator body, 4. Air storage chamber, 5. Intake pipe, 6. Connecting thread, 7. Micro Hole, 8, rubber non-return body.

Detailed ways

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto.

Example:

As shown in Fig. 1 and Fig. 2, the utility model comprises an aerator body 3 and a disk-shaped diaphragm 1, and the diaphragm 1 is made of an elastic material, such as rubber. The periphery of the diaphragm 1 is sealed and connected with the aerator body 3. The interior of the aerator body 3 is a hollow structure. The diaphragm 1 closes the hollow part of the aerator body 3 to form an air storage chamber 4. The diaphragm 1 is provided with a , the lower end face and connected to the micropores 7 of the gas storage cavity 4, wherein the number of the micropores 7 is multiple, and all the micropores 7 are evenly distributed on the membrane 1. The aerator body 3 is provided with an air intake pipe 5 connected to the air storage chamber 4, and the outer wall of the air intake pipe 5 is provided with a connecting thread 6, and the utility model is connected with the air pipe through the connecting thread 6.

The air storage cavity 4 of the utility model is provided with a non-return device, wherein the non-return device includes a rubber non-return body 8 and a non-return lower end body 2, and the non-return lower end body 2 is a hollow cylindrical connecting pipe, which is connected to the storage Air flow between the air cavity 4 and the intake pipe 5 . The upper end of the rubber non-return body 8 is sealingly connected with the diaphragm 1 , the lower end of the non-return body 2 matches the size of the air intake pipe 5 , and its lower end is connected with the air intake pipe 5 . The upper end of the non-return lower body 2 forms a funnel shape, the lower end of the rubber non-return body 8 forms a conical shape matching the size and shape of the funnel-shaped upper end of the non-return lower body 2, and the lower end of the rubber non-return body 8 is arranged on the non-return lower body. 2 In the upper end of the funnel, and sealed contact.

As mentioned above, the utility model can be well realized.

Claims (5)

1. A microporous aerator, characterized in that it includes the aerator body (3), and a diaphragm (1) that is sealed and connected to the aerator body (3) around the periphery, and the diaphragm (1) is connected to the aeration device The air storage chamber (4) is formed between the device body (3), and the diaphragm (1) is provided with micropores (7) that pass through its upper and lower end surfaces and connect to the air storage chamber (4). The aerator body (3) An air intake pipe (5) connected to the air storage cavity (4) is provided. 2. A microporous aerator according to claim 1, characterized in that: the air storage chamber (4) is provided with a non-return device, and the non-return device includes a rubber non-return body (8), And the non-return lower end body (2) that connects the airflow between the air storage chamber (4) and the intake pipe (5), the upper end of the rubber non-return body (8) is sealed with the diaphragm (1), and the lower end is connected The upper end of the back lower end body (2) is in sealing contact, and the size of the non-return lower end body (2) matches the air intake pipe (5), and its lower end is connected with the air intake pipe (5). 3. A microporous aerator according to claim 2, characterized in that: the upper end of the non-return lower body (2) forms a funnel shape, and the lower end of the rubber non-return body (8) forms a Back to the lower end body (2) The size and shape of the funnel-shaped upper end match the conical shape. 4. A microporous aerator according to claim 2, characterized in that: the non-return lower end body (2) is a hollow cylindrical connecting pipe. 5. A microporous aerator according to any one of claims 1-4, characterized in that: the outer wall of the air inlet pipe (5) is provided with connecting threads (6).

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