An integrated air-water oxygenation device

Abstract

This utility model relates to the field of oxygenation devices, specifically to an integrated air-water oxygenation device. It includes a tank containing an aerator. Each aerator comprises multiple aeration rings and connecting pipes. The aeration rings have multiple aeration holes, and each ring has a different diameter. The rings are nested together and spaced apart, and are interconnected via the connecting pipes. The aerator is located at the bottom of the tank and is connected to an aerator pipeline for supplying compressed gas. Multiple tanks are provided, and the aerators are connected to the aerator pipelines in each tank. This integrated air-water oxygenation device installs the aerator at the bottom of the tank, allowing air bubbles to rise from the bottom, extending the air-water contact time, improving oxygen dissolution efficiency, and accelerating fecal fermentation. One aerator supplies gas to multiple tanks, making it suitable for large-scale oxygenation applications. It saves space, facilitates management, and reduces equipment costs and operating energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of oxygenation devices, specifically to an integrated air-water oxygenation device. Background Technology

[0002] In livestock and poultry farming, organic waste treatment, and biogas projects, aerobic fermentation is one of the key processes for treating organic materials such as manure. As the core equipment of an aerobic fermentation system, the performance of the oxygenation device directly affects oxygen transfer efficiency, fermentation rate, and system operational stability.

[0003] Traditional oxygenation devices suffer from problems such as short gas-liquid contact time and low dissolved oxygen efficiency. Furthermore, in large-scale, multi-device oxygenation scenarios, the equipment is dispersed, management is complex, and operating costs are high, which needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide an integrated gas-liquid oxygenation device to address the above problems, thereby solving the issues of short gas-liquid contact time and low dissolved oxygen efficiency in the prior art.

[0005] To achieve the above objectives, this utility model discloses an integrated air-water oxygenation device, comprising a tank. Its structural features are as follows: an aerator is installed in the tank, the aerator includes multiple aeration rings and a connecting pipe connecting the multiple aeration rings, the aeration rings have multiple aeration holes, the diameters of the multiple aeration rings are different, the multiple aeration rings are nested together and spaced apart, the multiple aeration rings are interconnected through the connecting pipe, the aerator is located at the lower part of the tank, and the aerator is connected to an oxygenator pipeline for conveying compressed gas. Multiple tanks are provided, and the oxygenator is connected to the aerator pipelines in the multiple tanks.

[0006] Installing the aerator at the bottom of the tank allows bubbles to rise from the bottom, extending the air-water contact time, improving oxygen dissolution efficiency, and accelerating fecal fermentation. Using one aerator to supply air to multiple tanks is suitable for scenarios requiring large-scale, multi-unit aeration, saving space and making management easier while reducing equipment costs and operating energy consumption.

[0007] It also includes a base, on which the tank is rotatably mounted. A driven gear is installed at the bottom of the tank, and a motor is mounted on the base. A driving gear that meshes with the driven gear is installed on the output shaft of the motor. The motor drives the tank to rotate, promoting the mixing of feces inside the tank, preventing the feces from stratifying and settling inside the tank, preventing the formation of dead zones, and ensuring that oxygen and feces are evenly mixed inside the tank.

[0008] A stirring tube is installed on the base, extending from the bottom of the tank into the tank body. Stirring blades are mounted on the stirring tube. In addition to the rotating tank body, stationary stirring blades are added inside. When the tank body rotates, the feces and the stationary stirring blades move relative to each other, further increasing the gas-liquid contact area and improving the mixing efficiency of oxygen and feces.

[0009] A planar thrust bearing is mounted on the base, with the tank body located above it. The base is connected to the bearing's race, and the tank body is connected to the bearing's shaft race. The planar thrust bearing can withstand axial loads, effectively supporting the weight of the tank body. This significantly reduces frictional resistance during tank rotation, resulting in smoother operation and reduced wear and energy consumption.

[0010] Both the driven and driving gears are bevel gears, with the driven gear located within the inner ring of the planar thrust bearing. This design makes the structure more compact and makes full use of the space under the base.

[0011] The tank has a bottom hole through which the agitator tube extends into the tank. A sealing sleeve is installed on the bottom hole, and a packing ring is installed inside the sealing sleeve and wound around the agitator tube. As a reliable dynamic seal, the packing ring effectively prevents water and gas inside the tank from leaking through the gap between the rotating tank and the stationary agitator tube, preventing leakage from corroding components such as the motor, gears, and bearings.

[0012] The aerator is equipped with an air supply pipe, which is connected to the mixing pipe. The aerator is installed on the mixing pipe and connected to the mixing pipe pipeline. By using the mixing pipe as an air supply pipeline, the pipeline structure of the air supply system is simplified, reducing costs and potential points of failure.

[0013] The top of the tank is equipped with a cover, which has an air outlet. A sealing cap is installed on the cover to close the air outlet. When the air outlet is opened, undissolved waste gas can be discharged in an orderly manner, preventing it from accumulating inside the tank and forming air blockages, which would affect the entry of new bubbles and the dissolution efficiency.

[0014] The stirring tube is equipped with multiple air inlets, which are arranged vertically at intervals. Gas can enter the tank through the air inlets at different heights on the stirring tube, enabling aeration at different water depths within the tank. This results in a more uniform oxygen distribution and prevents oxygen from concentrating only at the bottom of the tank.

[0015] The base is equipped with a support for the stirring tube, which is located below the stirring tube. The support provides an additional fixing point for the stirring tube, preventing it from swaying or bending due to water flow impact or its own weight, and ensuring that it is always in a centered position.

[0016] In summary, the beneficial effects of this utility model are as follows: by installing the aerator at the bottom of the tank, the bubbles rise from the bottom of the tank, prolonging the gas-water contact time and improving the oxygen dissolution efficiency; by using a motor to drive the tank to rotate, the mixing of feces inside the tank is promoted, preventing the feces from stratifying and settling inside the tank and preventing the formation of dead corners; and by adding stationary stirring blades inside the tank on the basis of tank rotation, when the tank rotates, the feces and the stationary stirring blades move relative to each other, further increasing the gas-liquid contact area, improving the mixing efficiency of oxygen and feces, and accelerating the fermentation of feces. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the pipeline connections between multiple aeration devices and aerators; Figure 2 This is a schematic diagram of the internal structure of the oxygenation device. Figure 3 for Figure 2 A magnified view of the local structure at point A; Figure 4 This is a top view of the tank structure.

[0018] In the diagram: 1. Tank body; 2. Stirring pipe; 3. Stirring blades; 4. Aerator; 5. Horizontal thrust bearing; 6. Motor; 7. Drive gear; 8. Driven gear; 9. Air supply pipe; 10. Base; 11. Support seat; 12. Aerator; 13. Air outlet; 14. Sealing cover; 15. Top cover; 16. Sealing sleeve; 17. Packing; 18. Bottom hole; 19. Air supply hole; 20. Connecting pipe; 21. Aeration hole; 22. Aeration ring. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0021] An integrated air-water aeration device includes a tank 1, in which an aerator 4 is installed. The aerator 4 includes multiple aeration rings 22 and connecting pipes 20 connecting the multiple aeration rings 22. Each aeration ring 22 has multiple aeration holes 21. The diameters of the multiple aeration rings 22 are different, and the multiple aeration rings 22 are nested and spaced apart from each other. The multiple aeration rings 22 are interconnected through the connecting pipes 20. The aerator 4 is located at the lower part of the tank 1 and is connected to an aerator 12 for conveying compressed gas. The aerator 12 is preferably an air-suspension aerator, which is an application of air-suspension blowers. At the same power, air-suspension aerators have lower energy consumption than traditional aerators. The tank 1 has multiple aerators 12, and the aerators 12 are connected to the multiple aerators 4 in the tank 1 via pipelines. (See attached diagram). Figure 1Appendix Figure 2 The aerator 4 is installed at the bottom of the tank 1. The bubbles rise from the bottom of the tank, which prolongs the contact time between air and water, improves the oxygen dissolution efficiency, and can accelerate the fermentation of feces. One aerator 12 is used to supply air to multiple tanks 1 in a centralized manner. It is suitable for scenarios that require large-scale, multi-unit aeration, saves space layout, is not only easy to manage, but also reduces equipment costs and operating energy consumption.

[0022] See attached document Figure 2 The system also includes a base 10, on which the tank body 1 is rotatably mounted. A driven gear 8 is installed at the bottom of the tank body 1, and a motor 6 is installed on the base 10. A driving gear 7, meshing with the driven gear 8, is installed on the output shaft of the motor 6. The motor 6 drives the tank body 1 to rotate, promoting the mixing of feces inside the tank, preventing the feces from stratifying and settling inside the tank, preventing the formation of dead zones, and ensuring that oxygen and feces are evenly mixed inside the tank. A stirring tube 2 is installed on the base 10, extending from the bottom of the tank body 1 into the tank body 1. Stirring blades 3 are installed on the stirring tube 2. In addition to the rotation of the tank body 1, the internal stationary stirring blades 3 are added. When the tank body 1 rotates, the feces and the stationary stirring blades 3 move relative to each other, further increasing the gas-liquid contact area and improving the mixing efficiency of oxygen and feces. A planar thrust bearing 5 is installed on the base 10, with the tank body 1 located above the planar thrust bearing 5. The base 10 is connected to the seat ring of the planar thrust bearing 5, and the tank body 1 is connected to the shaft ring of the planar thrust bearing 5. The planar thrust bearing 5 can withstand axial loads, thus effectively supporting the weight of the tank 1 and greatly reducing the frictional resistance during tank 1 rotation, resulting in smoother operation and reduced wear and energy consumption. The driven gear 8 and the driving gear 7 are bevel gears, with the driven gear 8 located within the inner ring of the planar thrust bearing 5. This makes the structure more compact and fully utilizes the space under the base 10.

[0023] See attached document Figure 3 The tank body 1 has a bottom hole 18 at its bottom. The stirring tube 2 extends into the tank body 1 through the bottom hole 18. A sealing sleeve 16 is installed on the bottom hole 18, and a packing 17 is installed in the sealing sleeve 16. The packing 17 is wound around the stirring tube 2. As a reliable dynamic seal, the packing 17 can effectively prevent water and gas in the tank body 1 from leaking out from the gap between the rotating tank body 1 and the fixed stirring tube 2, and prevent leakage from corroding components such as the motor 6, gears, and bearings.

[0024] See attached document Figure 2An aerator 12 is equipped with an air supply pipe 9, which is connected to a mixing pipe 2. An aerator 4 is installed on the mixing pipe 2 and connected to the mixing pipe 2 pipeline. Using the mixing pipe 2 as a pipeline for air supply simplifies the pipeline structure of the air supply system, reducing costs and potential failure points. A top cover 15 is installed on the top of the tank 1, with an air outlet 13. A sealing cover 14 is installed on the top cover 15 to close the air outlet 13. Opening the air outlet 13 allows undissolved waste gas to be discharged in an orderly manner, preventing it from accumulating in the tank and forming air blockages, which would affect the entry and dissolution efficiency of new bubbles. Multiple air supply holes 19 are provided on the mixing pipe 2, arranged vertically at intervals. Gas can enter the tank from the air supply holes 19 at different heights on the mixing pipe 2, achieving aeration at different water depths within the tank, resulting in a more uniform oxygen distribution and preventing oxygen from concentrating only at the bottom of the tank 1. A support seat 11 for supporting the stirring tube 2 is installed on the base 10. The support seat 11 is located at the lower part of the stirring tube 2, and the stirring tube 2 is mounted on the support seat 11. The support seat 11 provides an additional fixing point for the stirring tube 2, preventing the stirring tube 2 from shaking or bending due to water flow impact or its own weight, and ensuring that it is always in a centered position.

[0025] Since the feces in tank 1 exist in a semi-fixed and semi-liquid form, traditional methods cannot fully mix the feces. This device uses the rotation of tank 1 and the rotation of stirring blades 3 to mix the feces. During operation, motor 6 drives tank 1, and tank 1 carries the feces to rotate, which promotes the mixing of feces in the tank, avoids the feces from being deposited in layers in the tank, prevents the formation of dead corners, ensures that oxygen and feces are evenly mixed in the tank, and accelerates the fermentation of feces.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An integrated air-water oxygenation device, comprising a tank (1), characterized in that, The tank (1) is equipped with an aerator (4). The aerator (4) includes multiple aeration rings (22) and a connecting pipe (20) connecting the multiple aeration rings (22). The aeration rings (22) are provided with multiple aeration holes (21). The diameters of the multiple aeration rings (22) are different. The multiple aeration rings (22) are nested together and spaced apart from each other. The multiple aeration rings (22) are connected to each other through the connecting pipe (20). The aerator (4) is located at the lower part of the tank (1). The aerator (4) is connected to the pipeline of the oxygenator (12) used to transport compressed gas. The tank (1) is provided with multiple aerators (4). The oxygenator (12) is connected to the pipeline of the multiple aerators (4) in the tank (1).

2. The integrated air-water oxygenation device as described in claim 1, characterized in that, It also includes a base (10), a tank (1) is rotatably mounted on the base (10), a driven gear (8) is mounted on the bottom of the tank (1), a motor (6) is mounted on the base (10), and a drive gear (7) that meshes with the driven gear (8) is mounted on the output shaft of the motor (6).

3. The integrated air-water oxygenation device as described in claim 2, characterized in that, A stirring tube (2) is installed on the base (10). The stirring tube (2) extends from the bottom of the tank (1) into the tank (1). A stirring blade (3) is installed on the stirring tube (2).

4. The integrated air-water oxygenation device as described in claim 2, characterized in that, A planar thrust bearing (5) is installed on the base (10), the tank (1) is located on the upper side of the planar thrust bearing (5), the base (10) is connected to the seat ring of the planar thrust bearing (5), and the tank (1) is connected to the shaft ring of the planar thrust bearing (5).

5. The integrated air-water oxygenation device as described in claim 4, characterized in that, The driven gear (8) and the driving gear (7) are bevel gears, and the driven gear (8) is located in the inner ring of the planar thrust bearing (5).

6. The integrated air-water oxygenation device as described in claim 3, characterized in that, The bottom of the tank (1) is provided with a bottom hole (18). The stirring tube (2) passes through the bottom hole (18) and extends into the tank (1). A sealing sleeve (16) is installed on the bottom hole (18). A packing (17) is installed in the sealing sleeve (16). The packing (17) is wrapped around the stirring tube (2).

7. The integrated air-water oxygenation device as described in claim 3, characterized in that, The aerator (12) is equipped with an air supply pipe (9), which is connected to the stirring pipe (2). An aerator (4) is installed on the stirring pipe (2) and is connected to the stirring pipe (2) via a pipeline.

8. The integrated gas-water oxygenation device as described in claim 1, characterized in that, The top of the tank (1) is equipped with a top cover (15), the top cover (15) is provided with an air outlet (13), and the top cover (15) is equipped with a sealing cover (14) to close the air outlet (13).

9. The integrated air-water oxygenation device as described in claim 3, characterized in that, The stirring tube (2) is provided with an air supply hole (19), and there are multiple air supply holes (19) arranged vertically at intervals.

10. The integrated air-water oxygenation device as described in claim 3, characterized in that, The base (10) is equipped with a support seat (11) for supporting the stirring tube (2). The support seat (11) is located at the lower part of the stirring tube (2), and the stirring tube (2) is installed on the support seat (11).

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