Tubular aeration device

Abstract

The utility model relates to the technical field of aeration equipment, and discloses a tubular aeration device which comprises a main pipeline, the rear end of the main pipeline is communicated and connected with a connecting pipe, the left side and the right side of the main pipeline are communicated and connected with branch pipes, and the tops of the branch pipes are communicated and connected with air outlet pipes. The outer sides of the top ends of the multiple air outlet pipes are fixedly connected with fixing discs, and the tops of the multiple fixing discs are in threaded connection with protection covers. Through the arrangement of the air outlet pipe, the groove and the bearing, the problems that energy consumption is increased, material aging is possibly accelerated, and the service life is shortened can be solved, the fixing ring is fixedly connected with the bearing inner ring, the turbine blades rotate to drive the fixing ring, and then the bearing inner ring rotates relative to the outer ring in the groove; therefore, the overall mixing effect in the tank is effectively improved, the biochemical reaction efficiency is improved, the shutdown maintenance requirement caused by blockage is reduced, and the manual cleaning frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aeration equipment technology, and in particular to a tubular aeration device. Background Technology

[0002] Tubular aeration devices are core equipment in wastewater treatment processes used to oxygenate water. They primarily deliver air (or oxygen) into the water through pipes or aeration heads, providing aerobic microorganisms with the oxygen needed for metabolism and ensuring the stable operation of treatment processes such as activated sludge and biofilm processes. Their structural design and performance directly affect the efficiency, energy consumption, and operating costs of wastewater treatment.

[0003] In traditional tubular aeration devices, air bubbles are typically released through fixed micropores, mesopores, or slits. The relatively large bubble size and limited gas-liquid contact area result in low oxygen mass transfer efficiency. This is especially problematic when treating high-concentration organic wastewater or deep-water applications, requiring longer aeration times or higher flow rates to compensate. This increases energy consumption, prolongs aeration time, and causes frequent clogging of aeration holes, necessitating repeated cleaning and potentially accelerating material aging and shortening lifespan. During operation, the aeration pipes are susceptible to severe vibration and shaking due to airflow impacts and water flow fluctuations, accelerating wear on the pipes, aeration holes, and connections. This can lead to pipe rupture and air leakage risks. In the event of a malfunction, repairs require shutting down and emptying the entire system, involving cumbersome disassembly and lengthy repair cycles. This necessitates significant manpower and resources for complete disassembly, increasing maintenance workload and costs, further extending equipment downtime, and ultimately raising wastewater treatment costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a tubular aeration device that can effectively solve the problems of increased energy consumption, prolonged aeration time, frequent clogging of aeration holes requiring repeated cleaning, accelerated material aging, shortened service life, and the need for a large amount of manpower and resources for overall disassembly, which increases maintenance workload and costs, further prolongs equipment downtime, and increases wastewater treatment costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tubular aeration device, comprising a main pipe, a connecting pipe connected to the rear end of the main pipe, branch pipes connected to both the left and right sides of the main pipe, an air outlet pipe connected to the top of each of the branch pipes, a fixed plate fixedly connected to the outer side of the top of each of the air outlet pipes, a protective cover threadedly connected to the top of each of the fixed plates, a groove formed inside each fixed plate, a bearing provided inside each groove, a fixed ring fixedly connected inside each bearing, a turbine blade fixedly connected to the bottom of each fixed ring, an air outlet hole formed inside each turbine blade and the fixed ring, and a semi-circular air outlet plate fixedly connected to the top of the fixed ring.

[0006] Furthermore, the left side wall of the main pipe and the front side wall of the multiple branch pipes are provided with a first semi-circular ring, and a first inclined block is fixedly connected to the upper and lower sides of the rear part of each first semi-circular ring, and a second semi-circular ring is provided on the rear side of each first semi-circular ring.

[0007] Furthermore, the front upper and lower sides of the second semi-circular ring are fixedly connected with second inclined blocks, and each of the first and second inclined blocks has a guide rail groove inside, and each of the first and second semi-circular rings has a semi-circular sealing ring fixedly connected inside.

[0008] Furthermore, each pair of semi-annular sealing rings is provided correspondingly, and a fixed cover is provided on the outer side of each of the first and second inclined blocks.

[0009] Furthermore, each of the fixed covers has a slider fixedly connected to its inner bottom wall, and the outer side of each slider is slidably connected to the inside of a guide groove.

[0010] Furthermore, each bottom of the fixed cover is threadedly connected to a guide rail block, and a sliding plate is slidably connected inside each guide rail block.

[0011] Furthermore, a fixing plate is fixedly connected to the bottom wall of each of the skateboards, and a fixing pin is fixedly connected to the bottom wall of each fixing plate.

[0012] Furthermore, each of the branch pipes is fixedly connected to a support leg at the other end.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, through its air outlet pipe, groove, bearing, turbine blades, air outlet hole, and semi-circular air outlet plate, solves the problems of increased energy consumption, prolonged aeration time, frequent clogging of aeration holes requiring repeated cleaning, and potential accelerated material aging and shortened service life. A fixed ring is fixedly connected to the inner ring of the bearing; the rotation of the turbine blades drives the fixed ring, causing the inner ring of the bearing to rotate relative to the outer ring within the groove. Another portion of the gas flows upward through the air outlet hole inside the turbine blades and fixed ring. Under the centrifugal force and shear force generated by the turbine rotation, the gas is cut into fine bubbles, increasing the gas-liquid contact area and improving oxygen mass transfer efficiency. This effectively improves the overall mixing effect in the tank, enhances biochemical reaction efficiency, reduces downtime maintenance due to clogging, and lowers the frequency of manual cleaning.

[0015] 2. By incorporating a first semi-circular ring, a second semi-circular ring, a guide rail groove, a slider, a fixing plate, and support legs, the system effectively solves the problem of requiring significant manpower and resources for overall disassembly, increasing maintenance workload and costs, further extending equipment downtime, and increasing wastewater treatment costs. The internal guide rail groove cooperates with the slider at the bottom of the fixing cover to achieve the splicing and fixation of the first and second semi-circular rings. During splicing, the semi-circular sealing rings fit tightly, with each pair of front and rear semi-circular sealing rings correspondingly positioned to form a sealing barrier at the pipe connection, preventing gas leakage, ensuring stable air pressure during aeration, and improving aeration efficiency. This effectively improves wastewater treatment results, avoids energy consumption surges and frequent shutdowns for cleaning due to blockages, greatly reduces maintenance costs, and enhances system stability and reliability.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a tubular aeration device proposed in this utility model;

[0018] Figure 2 This is a rear structural diagram of a tubular aeration device proposed in this utility model;

[0019] Figure 3 This is a structural diagram of the air outlet pipe of a tubular aeration device proposed in this utility model.

[0020] Figure 4 This is a structural diagram of the fixed disc of a tubular aeration device proposed in this utility model;

[0021] Figure 5 This is a structural diagram of a semi-circular air outlet plate of a tubular aeration device proposed in this utility model.

[0022] Figure 6 This is a structural diagram of a turbine blade for a tubular aeration device proposed in this utility model;

[0023] Figure 7 This is a schematic diagram of the fixing ring of a tubular aeration device proposed in this utility model;

[0024] Figure 8 This is a cross-sectional view of the fixing ring of a tubular aeration device proposed in this utility model.

[0025] Figure 9 This is a bottom view of the tubular aeration device proposed in this utility model;

[0026] Figure 10 This is a structural diagram of the second semi-circular ring of a tubular aeration device proposed in this utility model;

[0027] Figure 11 This is a structural diagram of the first inclined block of a tubular aeration device proposed in this utility model;

[0028] Figure 12 This is a structural diagram of the guide rail groove of a tubular aeration device proposed in this utility model;

[0029] Figure 13 This is a structural diagram of the fixed cover of a tubular aeration device proposed in this utility model;

[0030] Figure 14 This is a schematic diagram of the fixed cover connection of a tubular aeration device proposed in this utility model;

[0031] Figure 15 This is a structural diagram of the guide rail block of a tubular aeration device proposed in this utility model.

[0032] Legend:

[0033] 1. Main pipe; 2. Connecting pipe; 3. Branch pipe; 4. Exhaust pipe; 5. Fixing plate; 6. Protective cover; 7. Groove; 8. Bearing; 9. Fixing ring; 10. Turbine blade; 11. Exhaust hole; 12. Semi-circular exhaust plate; 13. First semi-circular ring; 14. First inclined block; 15. Second semi-circular ring; 16. Second inclined block; 17. Guide rail groove; 18. Semi-ring sealing ring; 19. Fixing cover; 20. Slider; 21. Guide rail block; 22. Slide plate; 23. Fixing plate; 24. Fixing pin; 25. Support leg. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] like Figure 1 - Figure 8 As shown: A tubular aeration device includes a main pipe 1, with a connecting pipe 2 connected to the rear end of the main pipe 1. Gas supplied by an external pump is transported into the main pipe 1 through the connecting pipe 2. Branch pipes 3 are connected to both the left and right sides of the main pipe 1, and air outlet pipes 4 are connected to the top of each branch pipe 3. After the gas is transported into the main pipe 1, it is evenly distributed into each branch pipe 3 through the interconnection of the main pipe 1 and the multiple branch pipes 3, and the gas is sprayed out through the air outlet pipes 4 at the top of the branch pipes 3.

[0036] Each of the top outer sides of multiple air outlet pipes 4 is fixedly connected to a fixed plate 5, and each of the tops of the multiple fixed plates 5 is threadedly connected to a protective cover 6. The protective cover 6 threadedly connected to the top of the fixed plate 5 forms a pressure stabilizing chamber, making the airflow into the turbine area more stable; on the other hand, it can prevent foreign objects from entering and protect the internal rotating parts.

[0037] Each fixed disk 5 has a groove 7 inside, and each groove 7 contains a bearing 8. Each bearing 8 has a fixed ring 9 fixedly connected inside it. Each fixed ring 9 has a turbine blade 10 fixedly connected to its bottom. Each turbine blade 10 and the fixed ring 9 has an outlet hole 11 inside. When gas enters through the outlet pipe 4, part of the airflow impacts the turbine blade 10 at the bottom of the fixed ring 9. According to fluid mechanics principles, the airflow creates a pressure difference on the surface of the turbine blade 10, causing the turbine blade 10 to rotate. Since the fixed ring 9 is fixedly connected to the inner ring of the bearing 8, the rotation of the turbine blade 10 drives the fixed ring 9 to rotate, thus causing the inner ring of the bearing 8 to rotate relative to the outer ring within the groove 7. The remaining gas flows upward through the outlet holes 11 inside the turbine blade 10 and the fixed ring 9. Under the centrifugal force and shear force generated by the turbine rotation, the gas is cut into tiny bubbles, increasing the gas-liquid contact area.

[0038] A semi-circular air outlet plate 12 is fixedly connected to the top of the fixed ring 9. The semi-circular air outlet plate 12 rotates synchronously with the fixed ring 9, and its unique arc-shaped structure ejects air bubbles obliquely along the tangential direction, forming a spiraling upward vortex in the water. This vortex not only prolongs the residence time of the air bubbles in the water but also enhances the longitudinal and lateral mixing of the water, resulting in a more even distribution of dissolved oxygen in the aeration tank. This promotes full contact between activated sludge, pollutants, and oxygen, thereby improving the wastewater treatment effect.

[0039] like Figure 1 - Figure 13As shown, a first semicircular ring 13 is provided on the left side wall of the main pipe 1 and the front side wall of multiple branch pipes 3. A first inclined block 14 is fixedly connected to the upper and lower rear sides of each first semicircular ring 13. A second semicircular ring 15 is provided on the rear side of each first semicircular ring 13. A second inclined block 16 is fixedly connected to the upper and lower front sides of the second semicircular ring 15. A guide groove 17 is opened inside each first inclined block 14 and second inclined block 16. A semi-annular sealing ring 18 is fixedly connected inside each first semicircular ring 13 and second semicircular ring 15. The first semicircular rings 13 on the left side wall of the main pipe 1 and the corresponding second semicircular rings 15 together form a complete annular structure. The first inclined blocks 14 on the upper and lower rear sides of the first semicircular ring 13 and the second inclined blocks 16 on the upper and lower front sides of the second semicircular ring 15 cooperate with the slider 20 at the bottom of the fixed cover 19 through the internal guide groove 17 to realize the splicing and fixation of the first semicircular ring 13 and the second semicircular ring 15. During splicing, the semi-annular sealing rings 18 fit tightly together, with each pair of semi-annular sealing rings 18 corresponding to each other, forming a sealing barrier at the pipe connection to prevent gas leakage and ensure stable gas pressure during aeration. In addition, the semi-annular sealing rings 18 can effectively prevent the first semi-circular ring 13 and the second semi-circular ring 15 from sliding on the outside of the branch pipe 3 and the main pipe 1.

[0040] In addition, the inclined surfaces of the first inclined block 14 and the second inclined block 16 can effectively prevent the slider 20 inside the outer fixed cover 19 from sliding off the first inclined block 14 and the second inclined block 16 due to external vibration and water flow.

[0041] like Figure 1 - Figure 15 As shown, each pair of front and rear semi-annular sealing rings 18 are correspondingly arranged. A fixing cover 19 is provided on the outer side of each first inclined block 14 and second inclined block 16. A slider 20 is fixedly connected to the inner bottom wall of each fixing cover 19. The outer side of each slider 20 is slidably connected to the inside of a guide rail groove 17. A guide rail block 21 is threadedly connected to the bottom of each bottom fixing cover 19. A sliding plate 22 is slidably connected inside each guide rail block 21. A fixing plate 23 is fixedly connected to the bottom wall of each sliding plate 22. A fixing pin 24 is fixedly connected to the bottom wall of each fixing plate 23. The sliding plate 22 inside the guide rail block 21 can slide along the guide rail through the threaded connection of the bottom fixing cover 19. The fixing plate 23 at the bottom of the sliding plate 22 is connected to the fixing pin 24. During installation, by adjusting the position of the sliding plate 22 within the guide rail block 21, the depth and angle of the fixing pin 24 inserted into the bottom of the aeration tank can be adjusted, achieving stable fixation of the device and adapting to different terrains and working conditions of the aeration tank bottom. Each branch pipe 3 is fixedly connected to a support leg 25 at the other end. The support leg 25 is used to connect to the bottom wall of the pool, so as to fix the other ends of multiple branch pipes 3 in the pool and prevent the branch pipes 3 from shaking.

[0042] It should be noted that this utility model is a tubular aeration device. Compressed air enters the system from the connecting pipe 2 at the rear end of the main pipe 1, flows axially along the main pipe, and is evenly distributed to the branch pipes 3 on the left and right sides. The branch pipes 3 guide the gas vertically to the air outlet pipe 4 at the top, forming a primary distribution network to ensure balanced air supply to each aeration point.

[0043] The fixed plate 5 on the outer side of the top of the exhaust pipe 4 not only supports the protective cover 6, but its internal groove 7 also crucially houses the bearing 8. When gas enters through the exhaust pipe 4, part of the airflow impacts the turbine blades 10 at the bottom of the fixed ring 9. According to the principles of fluid mechanics, the airflow creates a pressure difference on the surface of the turbine blades 10, driving the turbine blades 10 to rotate. Since the fixed ring 9 is fixedly connected to the inner ring of the bearing 8, the rotation of the turbine blades 10 drives the fixed ring 9, thereby causing the inner ring of the bearing 8 to rotate relative to the outer ring within the groove 7. Another part of the gas flows upward through the exhaust holes 11 inside the turbine blades 10 and the fixed ring 9. Under the action of centrifugal force and shear force generated by the turbine rotation, the gas is cut into tiny bubbles, increasing the gas-liquid contact area and improving the oxygen mass transfer efficiency.

[0044] The first semicircular ring 13, located on the left side wall of the main pipe 1 and the front side wall of the branch pipe 3, together with the corresponding second semicircular ring 15, forms a complete annular structure. The first inclined blocks 14 on the upper and lower rear sides of the first semicircular ring 13 and the second inclined blocks 16 on the upper and lower front sides of the second semicircular ring 15, engage with the slider 20 at the bottom of the fixing cover 19 via internal guide grooves 17, thus achieving the splicing and fixing of the first semicircular ring 13 and the second semicircular ring 15. During splicing, the semicircular sealing rings 18 fit tightly, with each pair of front and rear semicircular sealing rings 18 correspondingly arranged, forming a sealing barrier at the pipe connection to prevent gas leakage, ensure stable air pressure during aeration, and improve aeration efficiency.

[0045] The bottom fixing cover 19 is connected to the guide rail block 21 by threads. The slide plate 22 inside the guide rail block 21 can slide along the guide rail. The fixing plate 23 at the bottom of the slide plate 22 is connected to the fixing pin 24. During installation, by adjusting the position of the slide plate 22 inside the guide rail block 21, the depth and angle of the fixing pin 24 inserted into the bottom of the aeration tank can be adjusted to achieve stable fixation of the device and adapt to different terrains and working conditions of the aeration tank bottom.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tubular aeration device, comprising a main pipe (1), characterized in that: The main pipe (1) is connected to a connecting pipe (2) at its rear end. The main pipe (1) is connected to branch pipes (3) on both the left and right sides. The tops of the branch pipes (3) are connected to air outlet pipes (4). The tops of the air outlet pipes (4) are fixedly connected to fixed discs (5). The tops of the fixed discs (5) are threaded with protective covers (6). Each fixed disc (5) has a groove (7) inside. Each groove (7) has a bearing (8) inside. Each bearing (8) has a fixed ring (9) inside. Each fixed ring (9) has a turbine blade (10) fixedly connected to its bottom. Each turbine blade (10) and the fixed ring (9) have an air outlet (11) inside. The top of the fixed ring (9) has a semi-circular air outlet plate (12) fixedly connected to its top.

2. The tubular aeration device according to claim 1, characterized in that: The left side wall of the main pipe (1) and the front side wall of the multiple branch pipes (3) are provided with a first semi-circular ring (13). Each first semi-circular ring (13) is fixedly connected to the upper and lower sides of the rear part of the first semi-circular ring (14). Each first semi-circular ring (13) is provided with a second semi-circular ring (15) on the rear side.

3. A tubular aeration device according to claim 2, characterized in that: The second semicircular ring (15) has a second inclined block (16) fixedly connected to both the upper and lower sides of the front part. Each of the first inclined block (14) and the second inclined block (16) has a guide rail groove (17) inside. Each of the first semicircular ring (13) and the second semicircular ring (15) has a semicircular sealing ring (18) fixedly connected inside.

4. A tubular aeration device according to claim 3, characterized in that: Each pair of semi-annular sealing rings (18) is provided in a corresponding manner, and each of the first inclined block (14) and the second inclined block (16) is provided with a fixing cap (19) on the outside.

5. A tubular aeration device according to claim 4, characterized in that: Each of the fixed covers (19) has a slider (20) fixedly connected to its inner bottom wall, and the outer side of each slider (20) is slidably connected to the inside of a guide groove (17).

6. A tubular aeration device according to claim 5, characterized in that: Each bottom of the fixed cover (19) is threadedly connected to a guide block (21), and each guide block (21) is slidably connected to a slide plate (22).

7. A tubular aeration device according to claim 6, characterized in that: Each of the slide plates (22) has a fixed plate (23) fixedly connected to its bottom wall, and each of the fixed plates (23) has a fixed pin (24) fixedly connected to its bottom wall.

8. A tubular aeration device according to claim 1, characterized in that: Each of the branch pipes (3) is fixedly connected to a support leg (25) at the other end.

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