Aeration rate control device

Abstract

The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to an aeration rate control device. The utility model provides an aeration rate control device and aims to solve the problem of loud noise in the working process of a pressure release valve in the prior art. The aeration rate control device comprises an aeration tank, an aeration head is arranged in the aeration tank, an air supply pipe for supplying air to the aeration head is arranged on the aeration tank, and an emptying electric control valve is arranged on the air supply pipe; the dissolved oxygen meter can monitor the concentration of dissolved oxygen in the aeration tank in real time and feed the parameter back to the controller, and the controller dynamically adjusts the opening degree of the emptying electric control valve according to the parameter detected by the dissolved oxygen meter, so that the air supply amount of the air supply pipe is accurately controlled, and it is ensured that the concentration of the dissolved oxygen in the aeration tank is kept within the optimal range. And the noise generated in the working process of the emptying electric control valve is reduced, so that the noise generated in the working process of the emptying electric control valve is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to an aeration volume control device. Background Art

[0002] With the increasing number of sewage treatment plants and biological treatment systems, various oxygen supply devices used in the biochemical system are also increasing. There is a situation where when the oxygen supply device operates at the minimum speed, the supplied air volume is still greater than the required oxygen in the biological pond. The main function of the vent valve currently supporting the oxygen supply device in the sewage treatment plant is to relieve pressure to protect the oxygen supply device and cannot be normally used during the continuous operation process.

[0003] Based on the situation that the aeration air volume is too large in some current sewage treatment plants, measures need to be taken to effectively protect the biological treatment system. The traditional pressure relief valve is not conducive to use mainly because: the reduction range of the operation frequency of the aeration device is limited, and at this time, an additional channel is required for pressure relief, while the traditional pressure relief valve will cause a large loss of the aeration volume of the biological treatment system; the traditional pressure relief valve is to reduce the load when the aeration device starts, so it is installed beside the aeration device. When in use, it is under great pressure, has large energy consumption, is dangerous to operate, and has a large noise. Summary of the Utility Model

[0004] The utility model provides an aeration volume control device, aiming to solve the problem of large noise during the working process of the pressure relief valve in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] An aeration volume control device includes an aeration tank, an aeration head is arranged in the aeration tank, an air supply pipe for supplying air to the aeration head is arranged on the aeration tank, and a vent electric control valve is arranged on the air supply pipe;

[0007] A dissolved oxygen meter is further arranged in the aeration tank, a controller is arranged on the vent electric control valve, the controller is in communication connection with the dissolved oxygen meter, and the controller controls the vent electric control valve according to the parameters detected by the dissolved oxygen meter.

[0008] Further improved scheme: A silencer is arranged on the vent electric control valve.

[0009] Based on the above technical solution: A silencer is arranged on the vent electric control valve, and the silencer can significantly reduce the noise generated by the vent electric control valve during the venting process. When the vent electric control valve is quickly opened, high-pressure gas or steam sprays out from the valve at high speed, often accompanied by huge noise. The existence of the silencer can effectively absorb and dissipate these noises and reduce their impact on the surrounding environment and personnel.

[0010] Further improved scheme: The silencer includes a silencing pipe.

[0011] Based on the above technical solution: The silencer includes a silencing pipe, which is small in volume and light in weight, facilitating installation and layout, and not occupying too much space.

[0012] Further improved solution: The silencing pipe is provided with sound-absorbing holes.

[0013] Based on the above technical solution: The silencing pipe is provided with sound-absorbing holes. The presence of the sound-absorbing holes can significantly absorb and dissipate the noise generated by the airflow or steam passing through the silencing pipe. When the gas or steam passes through the sound-absorbing holes, the sound waves are reflected, scattered, and friction occurs inside the holes, and part of the sound energy is converted into other forms of energy (such as heat energy), thereby reducing the noise level.

[0014] Further improved solution: The silencing pipe is also provided with sound-absorbing cotton.

[0015] Based on the above technical solution: The silencing pipe is also provided with sound-absorbing cotton. The surface of the sound-absorbing cotton is mostly in the shape of round holes or corrugated structures, which can increase the sound absorption effect. When the sound passes through the sound-absorbing cotton, the sound waves will enter the pores and be reflected and refracted multiple times inside the material, so that the sound energy is converted into heat energy and absorbed. This mechanism significantly reduces the noise generated by the airflow or steam passing through the silencing pipe and provides a quieter operating environment for the equipment.

[0016] Further improved solution: The sound-absorbing cotton is adhered to the silencing pipe.

[0017] Based on the above technical solution: The sound-absorbing cotton is adhered to the silencing pipe. The sound-absorbing cotton is fixed on the silencing pipe by an adhesive method, ensuring a tight fit between the sound-absorbing cotton and the silencing pipe, reducing the possibility of sound leakage through the gaps. This tight fit helps to maximize the sound absorption and sound insulation effects of the sound-absorbing cotton.

[0018] Further improved solution: The air supply pipe is also provided with a pressure gauge for detecting the gas pressure inside the air supply pipe.

[0019] Based on the above technical solution: The air supply pipe is also provided with a pressure gauge for detecting the gas pressure inside the air supply pipe. By continuously monitoring the gas pressure, the pressure gauge can help to detect potential pressure abnormalities in a timely manner, such as too high or too low pressure, thereby preventing system failures or safety accidents caused by pressure problems.

[0020] Further improved solution: The air supply pipe supplies air to the aeration head through a connecting pipe.

[0021] Based on the above technical solution: The air supply pipe supplies air to the aeration head through a connecting pipe. The air supply pipe directly transports air to the aeration head through the connecting pipe, ensuring that the aeration head can obtain sufficient oxygen supply. This is crucial for the metabolic process of microorganisms because microorganisms need oxygen for respiration to degrade organic substances in sewage.

[0022] Further improved solution: Both the vent solenoid valve and the pressure gauge are arranged at one end of the air supply pipe close to the connecting pipe.

[0023] Based on the above technical solution: Both the vent solenoid valve and the pressure gauge are arranged at one end of the air supply pipe close to the connecting pipe. Setting the vent solenoid valve and the pressure gauge at one end of the air supply pipe close to the connecting pipe enables control and monitoring at a relatively concentrated position, improving the convenience of operation.

[0024] Further improved solution: The pressure gauge is arranged on the air supply pipe and on the side of the vent solenoid valve close to the connecting pipe.

[0025] Based on the above technical solution: The pressure gauge is arranged on the air supply pipe and on the side of the vent solenoid valve close to the connecting pipe. The pressure gauge is arranged close to the connecting pipe, enabling more accurate monitoring of the gas pressure entering the aeration head.

[0026] The beneficial effects of the present utility model are as follows:

[0027] In the present utility model, a dissolved oxygen meter is arranged in the aeration tank, a controller is arranged on the vent solenoid valve, the controller is communicatively connected with the dissolved oxygen meter, and the controller controls the vent solenoid valve according to the parameters detected by the dissolved oxygen meter. The dissolved oxygen meter can real-time monitor the dissolved oxygen concentration in the aeration tank and feedback this parameter to the controller. The controller dynamically adjusts the opening degree of the vent solenoid valve according to the parameters detected by the dissolved oxygen meter, thereby precisely controlling the air supply volume of the air supply pipe, ensuring that the dissolved oxygen concentration in the aeration tank is maintained within the optimal range, and being beneficial to reducing the noise generated during the operation of the vent solenoid valve. Furthermore, the noise generated during the operation of the vent solenoid valve is effectively reduced.

[0028] The controller dynamically adjusts the opening degree of the vent solenoid valve according to the parameters detected by the dissolved oxygen meter, which can achieve air supply on demand. This air supply on demand method avoids the problem of dissolved oxygen concentration fluctuations caused by a fixed air supply volume in the traditional aeration method. It ensures the efficiency and stability of the aeration process and helps improve the efficiency and effect of sewage treatment. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0030] Figure 1 It is a schematic diagram of an aeration volume control device of the present utility model.

[0031] Figure 2 is Figure 1 the enlarged view at position A in

[0032] Explanation of the reference numerals in the figure:

[0033] 1 - Aeration tank; 2 - Aeration head; 3 - Air supply pipe; 4 - Drain electric control valve; 5 - Dissolved oxygen meter; 6 - Controller; 7 - Silencer; 8 - Silencing pipe; 9 - Silencing hole; 10 - Sound-absorbing cotton; 11 - Pressure gauge; 12 - Connecting pipe. Specific embodiments

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings in the embodiments of the present utility model. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0035] Refer to Figures 1 to 2 , an aeration volume control device, including an aeration tank 1, an aeration head 2 is arranged in the aeration tank 1, an air supply pipe 3 for supplying air to the aeration head 2 is arranged on the aeration tank 1, and a drain electric control valve 4 is arranged on the air supply pipe 3;

[0036] A dissolved oxygen meter 5 is further arranged in the aeration tank 1, a controller 6 is arranged on the drain electric control valve 4, the controller 6 is communicatively connected with the dissolved oxygen meter 5, and the controller 6 controls the drain electric control valve 4 according to the parameters detected by the dissolved oxygen meter 5.

[0037] Specifically: a silencer 7 is arranged on the drain electric control valve 4.

[0038] The silencer 7 includes a silencing pipe 8. The silencing pipe 8 can be fixed to the drain electric control valve 4 in any manner, for example, it can be fixed by means of threaded connection, welding or clamping, etc.

[0039] The muffler pipe 8 is provided with muffler holes 9. The muffler holes 9 can be evenly distributed on the muffler pipe 8. The cross-sectional shape of the muffler holes 9 can be circular or polygonal.

[0040] Wherein: The muffler pipe 8 is further provided with sound-absorbing cotton 10.

[0041] The sound-absorbing cotton 10 is adhered to the muffler pipe 8. The sound-absorbing cotton 10 can also be fixed to the muffler pipe 8 by other means. The sound-absorbing cotton 10 can have one or more layers.

[0042] Specifically: The air supply pipe 3 is further provided with a pressure gauge 11 for detecting the gas pressure in the air supply pipe 3. The pressure gauge 11 can be fixed to the air supply pipe 3 through a connector. The connector can be welded to the air supply pipe 3, and the pressure gauge 11 can be fixed to the connector through threads.

[0043] Wherein: The air supply pipe 3 supplies air to the aeration head 2 through a connecting pipe 12.

[0044] Reference Figures 1 to 2 Specifically: The vent solenoid valve 4 and the pressure gauge 11 are both arranged at one end of the air supply pipe 3 close to the connecting pipe 12.

[0045] The pressure gauge 11 is arranged on the air supply pipe 3 and is located on the side of the vent solenoid valve 4 close to the connecting pipe 12.

[0046] The vent solenoid valve 4 can be connected in series to the air supply pipe 3. The specific installation method of the vent solenoid valve 4 is not limited. For example, it can be connected by threads or other means.

[0047] The working principle of this embodiment:

[0048] The dissolved oxygen meter 5 continuously monitors the dissolved oxygen concentration in the aeration tank 1 and sends the real-time data to the controller 6. After receiving the data sent by the dissolved oxygen meter 5, the controller 6 compares and analyzes it with the preset target value of the dissolved oxygen concentration. According to the analysis result, the controller 6 decides whether to adjust the air supply volume to maintain the dissolved oxygen concentration within the target range. If the dissolved oxygen concentration is higher or lower than the target value, the controller 6 will send an adjustment signal to the vent solenoid valve 4. The vent solenoid valve 4 adjusts its opening according to the received signal, thereby changing the air supply volume of the air supply pipe 3. When the air supply volume increases, the aeration head 2 releases more bubbles into the sewage, increasing the dissolved oxygen concentration; otherwise, it decreases the dissolved oxygen concentration. The above process is continuously cycled. The dissolved oxygen meter 5 continuously monitors the dissolved oxygen concentration, and the controller 6 adjusts the air supply volume in real time according to the monitoring result to ensure that the dissolved oxygen concentration in the aeration tank 1 is always maintained within the optimal range.

[0049] The present utility model is not limited to the above-mentioned optional embodiments. On the premise of not conflicting with each other, various schemes can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical scheme falls within the scope defined by the claims of the present utility model, it falls within the protection scope of the present utility model.

Claims

1. An aeration rate control device, characterized in that: It includes an aeration tank, in which there is an aeration head, and an air supply pipe for supplying air to the aeration head is arranged on the aeration tank, and an air release electric control valve is arranged on the air supply pipe; A dissolved oxygen meter is also arranged in the aeration tank, a controller is arranged on the air release electric control valve, the controller is communicatively connected with the dissolved oxygen meter, and the controller controls the air release electric control valve according to the parameters detected by the dissolved oxygen meter.

2. The aeration rate control device according to claim 1, characterized in that: A silencer is arranged on the air release electric control valve.

3. The aeration rate control device according to claim 2, characterized in that: The silencer includes a silencing pipe.

4. The aeration rate control device according to claim 3, characterized in that: Silencing holes are arranged on the silencing pipe.

5. The aeration rate control device according to claim 4, characterized in that: Sound-absorbing cotton is also arranged on the silencing pipe.

6. The aeration rate control device according to claim 5, characterized in that: The sound-absorbing cotton is adhered to the silencing pipe.

7. An aeration rate control device according to any one of claims 1 to 6, characterized in that: A pressure gauge for detecting the gas pressure in the air supply pipe is also arranged on the air supply pipe.

8. An aeration rate control device according to claim 7, characterized in that: The air supply pipe supplies air to the aeration head through a connecting pipe.

9. The aeration rate control device according to claim 8, wherein: Both the air release electric control valve and the pressure gauge are arranged at one end of the air supply pipe close to the connecting pipe.

10. The aeration rate control device according to claim 9, characterized in that: The pressure gauge is arranged on the air supply pipe and on the side of the air release electric control valve close to the connecting pipe.

Images