Novel oxygenation equipment and oxygenation process for cherax quadricarinatus

Abstract

The invention relates to the technical field of aquaculture equipment, and provides novel oxygenation equipment and technology for cherax quadricarinatus. The novel oxygenation equipment comprises a support and an air pump installed on one side of the support; the support is sleeved with a supporting plate, translation structures are arranged at the two ends of the top end of the supporting plate, a connecting pipe is installed at one end of the support, and aeration discs are installed at the tops of the translation structures. According to the invention, the translation structure is arranged, the water wheel is arranged above the aeration jet, the water wheel rotates under the impact force of bubble rising, the rotation speed of the chain is slow through the ratio difference of the large gear and the small gear between the gear sets, and the aeration disc above continuously translates back and forth during aeration under the cooperation of the movable block and other components, so that the aeration efficiency is improved. According to the invention, uniform aeration of culture water is realized, dissolved oxygen in the water is distributed more uniformly, uniform growth of cherax quadricarinatus is facilitated, dense distribution of spiral impellers is not needed, energy consumption is reduced, and culture cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture equipment, in particular to a novel oxygenation device and an oxygenation process for red claw crayfish. Background Art

[0002] Red claw crayfish, also known as Australian freshwater lobster or red claw crayfish, is native to northern Australia. It is a large freshwater crayfish that has gradually become a popular aquaculture species in my country in recent years due to its delicious meat, fast growth rate, and strong adaptability. When aquaculture is carried out, oxygenation equipment should be used when necessary to optimize the aquaculture environment by increasing the dissolved oxygen content in the water, thereby improving the survival rate, growth rate, and overall yield of the shrimp. To this end, the patent with publication number CN217065069U discloses an oxygenation device for a red claw crayfish fry pond, comprising a base, a plurality of floating plates embedded in the bottom of the base, filter frames on both sides of the base, a fixed frame fixedly installed in the middle position of the top of the base, a servo motor fixedly installed on the top of the fixed frame, a transmission rod rotating through both sides of the fixed frame, and a mounting block on the end of the transmission rod away from the fixed frame. The utility model drives the second gear to rotate by the servo motor, thereby driving the transmission rod on the first gear to rotate, so that the fourth gear rotates, thereby driving the connecting rod on the third gear to rotate, thus driving the stirring blades on multiple turntables to rotate and stir the water, so that the water and air are fully integrated to produce dissolved oxygen, thereby improving the overall oxygenation effect, and by providing grooves on the surface of the stirring blades, it is convenient to bring more air into the water, thereby increasing the amount of oxygenation; The above-mentioned red claw crayfish oxygenation equipment stirs the water by rotating the stirring blades, so that the water and air are fully mixed to produce dissolved oxygen. However, the aeration part is in a fixed state. The dissolved oxygen content may be higher near the aeration point, while the dissolved oxygen content may be lower in the area far away from the aeration point, resulting in uneven dissolved oxygen distribution, which is not conducive to the uniform growth of red claw crayfish and may cause the growth of some shrimp seedlings to be hindered due to lack of oxygen. In order to ensure that the dissolved oxygen content of the entire aquaculture water body meets the requirements, the fixed-state aeration equipment may require higher power, more dense distribution or longer operating time, thereby increasing energy consumption and raising aquaculture costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a new type of oxygenation equipment and oxygenation process for red claw crayfish, so as to solve the defect that the aeration range of the existing new type of oxygenation equipment for red claw crayfish is fixed.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a new type of oxygenation equipment and oxygenation process for red claw crayfish, comprising a bracket and an air pump installed on one side of the bracket; a support plate is provided on the outside of the bracket, and translation structures are provided at both ends of the top of the support plate, a connecting pipe is installed at one end of the bracket, an aeration plate is installed on the top of the translation structure, and a spiral impeller is provided on the top of the aeration plate; the translation structure includes a slide plate fixed on both sides of the top of the support plate, and sprockets are installed on both sides of the bottom of the slide plate, a chain is provided on the outside of the sprocket, a spur gear set is installed on one side of the sprocket, and a connecting shaft is provided at one end of the top of the slide plate.

[0005] Preferably, the support plate includes a sleeve fixed in the middle position of the support plate, and pull plates are provided at both ends of the sleeve, movable grooves are provided at the top and bottom of both ends of the sleeve, and limiting holes are provided at both ends of the bracket.

[0006] Preferably, the top and bottom of one opposite end of the pull plate are fixed with limiting columns, and the opposite ends of the limiting columns are provided with protrusions, and the outsides of the limiting columns are sleeved with springs.

[0007] Preferably, a water wheel is installed on the outside of the connecting shaft, and the water wheel is located on the top of the spiral impeller. A slider is provided inside the water wheel, and a slide rail is provided on the outer wall of the connecting shaft outside the slider, and a sliding structure is formed between the slide rail and the slider.

[0008] Preferably, the chain and the sprocket are meshed and connected, a movable block is installed on the top of the chain, and a connecting groove is installed on the outside of the movable block, and a sliding structure is formed between the connecting groove and the movable block.

[0009] Preferably, a limiting block is fixed at the top of the connecting groove, and a connecting frame is installed at the top of the limiting block, the aeration plate is installed inside the connecting frame, the spiral impeller is installed at the top of the connecting frame, the top of the connecting frame is connected to the water wheel, and a sliding structure is formed between the limiting block and the slide plate.

[0010] Preferably, a large gear is installed at the bottom of the sprocket on one side of the spur gear set, and the large gear and the spur gear set are meshed and connected. A support shaft is installed on one side of the spur gear set, and a small gear is installed at the bottom of the support shaft.

[0011] Preferably, the pinion and the spur gear set are meshed and connected, a right-angle gear set is installed on the top of the support shaft, and the other side of the right-angle gear set is connected to the connecting shaft.

[0012] Preferably, the bottom end of the connecting pipe is connected to an air pipe, and the other end of the air pipe is connected to the air outlet of the air pump. A hose is connected to both sides of the connecting pipe, and the other end of the hose is connected to the bottom of the aeration disk. The air inlet of the air pump is installed with a filter screen, and the filter screen is outwardly flared. The outwardly flared filter screen and the flared opening structure reduce intake resistance and improve intake efficiency.

[0013] An oxygenation process of a novel oxygenation device for red claw crayfish comprises the following steps: S1. Preparation: Assemble the filter screen to the air pump's air inlet. Connect the air pipe between the connecting pipe and the air pump's air outlet. Then, according to the required depth of the aeration pond, layer the aeration discs to different depths. Pull the pull plates to the sides to move the limit posts away from the limit holes on the outside of the bracket. Then, push the sleeve up and down to move the support plate to the appropriate depth. The aeration discs are arranged in layers within the aquaculture pond to form a three-dimensional aeration network. S2. Aeration: Start the air pump to pressurize air and deliver it to the distribution pipeline connecting pipe. A filter is installed in front of the air pump to effectively remove dust and impurities in the air. Intelligent valves are installed at the connection between the connecting pipe and the hose to control the uniform distribution of gas flow in each aeration branch. The gas enters the aeration disk through the hose and generates small bubbles through the special aperture to improve the dissolved oxygen efficiency. S3. Dissolved oxygen enhancement: The bubbles generated by the aeration plate have an upward force, which pushes the spiral impeller designed above it. The blades act as fixed guides to guide the fluid to form a spiral upward flow, converting the axial kinetic energy of the gas-liquid mixture into radial and tangential kinetic energy, extending the residence time of the bubbles in the water. The rising bubbles create an impact on the water wheel at the top, causing it to rotate rapidly. The greater the impact force of the bubbles, the faster the water wheel rotates. The rotation of the water wheel passes through the reduction ratio between the large and small gear sets, causing the sprocket to rotate slowly, and the chain drives the aeration plate at the top to slowly reciprocate and translate, expanding the aeration range and improving the uniformity of dissolved oxygen.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the new oxygenation equipment and oxygenation process for red claw crayfish, during the aeration process, generates power through the upward impact of bubbles to drive the aeration plate to move horizontally, thereby achieving aeration and back and forth movement, increasing the aeration range, and making the dissolved oxygen distribution more uniform. Moreover, by arranging the aeration plates in layers, it is convenient to adjust the height of each layer of aeration plates, thereby achieving improved dissolved oxygen uniformity and adapting to different breeding environments. By setting up a translation structure and installing a spiral impeller on the top of the aeration plate, the bubbles carry momentum when rising in the water, pushing the spiral impeller above it to stir the water, thereby increasing the contact area between the tiny bubbles generated by the aeration plate and the water, making the oxygen dissolve more fully. The rotation of the spiral impeller can form a continuous water flow, lifting the oxygen-poor water at the bottom upwards, and cooperating with the tiny bubbles released by the aeration plate to accelerate the diffusion of oxygen in the water, thereby improving the overall oxygenation efficiency. Furthermore, a water wheel is provided above the aeration jet. The force of the rising bubbles causes the water wheel to rotate. The difference in the gear ratio between the gear sets slows down the rotation speed of the chain. With the cooperation of components such as the movable block, the aeration disc above is continuously reciprocated while aerating, thereby achieving uniform aeration of the aquaculture water body and making the dissolved oxygen content in the water body more evenly distributed, which is conducive to the uniform growth of red claw crayfish. There is no need to densely distribute spiral impellers, thereby reducing energy consumption and reducing aquaculture costs. By providing support plates, three groups of support plates are provided on the bracket, so that they are distributed in different water layers, ensuring that the dissolved oxygen content in each layer of the water body is more uniform, which helps to meet the oxygen needs of red claw crayfish in different water layers and promote their uniform growth. In addition, smart valves are installed at the joints of the hoses, which can adjust the aeration volume of each layer according to actual needs to avoid unnecessary energy waste. Furthermore, a sleeve is provided in the middle position of the support plate, and the connection between the sleeve and the bracket can be released by pulling the pull plate, so that the support plate can be easily adjusted to different heights. Due to different breeding environments, such as pond shape, water depth, water quality, etc., there may be different requirements for the height of the aeration plate, so the height of the aeration plate can be easily adjusted to ensure that the aeration plate can achieve the best effect in different breeding environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a rear-view three-dimensional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention in a cutaway state; Figure 5 This is a schematic diagram of the three-dimensional structure of the chute plate of the present invention when viewed from above in a cutaway state; Figure 6 This is a schematic diagram of the three-dimensional structure of the chute plate of the present invention when it is cut away and viewed from above; Figure 7 Schematic diagram of the three-dimensional structure of the chain of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the water wheel of the present invention in a cutaway state; Figure 9 It is a schematic diagram of the three-dimensional structure of the sleeve of the present invention in a cut-away state.

[0016] Explanation of the reference numerals in the figure: 1. bracket; 2. support plate; 21. sleeve; 22. limiting hole; 23. pull plate; 231. limiting column; 232. spring; 233. protrusion; 24. movable groove; 3. translation structure; 31. slide plate; 32. connecting shaft; 321. water wheel; 322. slide rail; 323. slider; 33. chain; 331. limiting block; 332. connecting groove; 333. movable block; 334. connecting frame; 34. spur gear set; 341. right-angle gear set; 342. large gear; 343. small gear; 344. support shaft; 35. sprocket; 4. air pump; 5. filter screen; 6. connecting pipe; 61. air pipe; 62. hose; 7. aeration plate; 8. spiral impeller. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1-9 The present invention provides a new type of oxygenation equipment and oxygenation process for red claw crayfish, comprising a bracket 1 and an air pump 4 installed on one side thereof; a support plate 2 is provided on the outside of the bracket 1, and translation structures 3 are provided at both ends of the top of the support plate 2, a connecting pipe 6 is installed at one end of the bracket 1, an aeration plate 7 is installed on the top of the translation structure 3, and a spiral impeller 8 is provided on the top of the aeration plate 7; the support plate 2 includes a sleeve 21 fixed in the middle position of the support plate 2, and a pull plate 23 is provided at both ends of the sleeve 21, and the top and bottom of both ends of the sleeve 21 are provided with The movable groove 24 and the bracket 1 are provided with limit holes 22 at both ends. The top and bottom of the opposite end of the pull plate 23 are fixed with limit columns 231, and the opposite end of the limit columns 231 is provided with a protrusion 233. The outside of the limit columns 231 is provided with a spring 232. The bottom end of the connecting pipe 6 is connected to the air pipe 61, and the other end of the air pipe 61 is connected to the air outlet of the air pump 4. Both sides of the connecting pipe 6 are connected to a hose 62, and the other end of the hose 62 is connected to the bottom of the aeration plate 7. The air inlet of the air pump 4 is installed with a filter 5, and the filter 5 is outwardly expanded. Reference Figure 2 、 Figure 4 and Figure 9As shown, when the depth of the aeration plate 7 in the breeding pond needs to be adjusted, the pull plate 23 is pulled outward to drive the limiting column 231 away from the limiting hole 22 on the outside of the bracket 1, so that the sleeve 21 loses its fixation. Then, the sleeve 21 is directly slid up and down to drive the support plate 2 to move to a suitable height and then adjust it to the nearby limiting hole 22. The pull plate 23 is released. Under the action of the rebound force of the spring 232, the protrusion 233 is pushed to drive the limiting column 231 to pass through the limiting hole 22, so that the limiting column 231 and the limiting hole 22 are interlaced and fixed, so that the sleeve 21 and the bracket 1 are fixedly connected. The translation structure 3 includes a slide plate 31 fixed to both sides of the top of the support plate 2, and a connecting shaft 32 is provided at one end of the top of the slide plate 31. A water wheel 321 is installed outside the connecting shaft 32, and the water wheel 321 is located on the top of the spiral impeller 8. A slider 323 is provided inside the water wheel 321, and a slide rail 322 is provided on the outer wall of the connecting shaft 32 outside the slider 323. A sliding structure is formed between the slide rail 322 and the slider 323. Reference Figure 4 and Figure 8 As shown, during the aeration process, gas is released through the aeration disk 7 to form bubbles. When the bubbles rise in the water, they carry momentum driven by buoyancy and initial pressure. When rising, they push the spiral impeller 8 provided above them, driving it to rotate and convert the axial kinetic energy of the gas-liquid mixture into radial and tangential kinetic energy, thereby extending the residence time of the bubbles in the water and causing them to spiral upward. The rising bubbles impact the water wheel 321 at the top, causing it to rotate rapidly. The greater the impact force of the bubbles, the faster the rotation speed of the water wheel 321. The rotation of the water wheel 321 is connected through the embedded connection between the slider 323 and the slide rail 322, causing the connecting shaft 32 to rotate synchronously. Sprockets 35 are installed on both sides of the bottom of the slide plate 31. A chain 33 is set on the outside of the sprocket 35. A spur gear set 34 is installed on one side of the sprocket 35. A large gear 342 is installed at the bottom of the sprocket 35 on one side of the spur gear set 34. The large gear 342 and the spur gear set 34 are meshed together. A support shaft 344 is installed on one side of the spur gear set 34. A small gear 343 is installed at the bottom of the support shaft 344. The small gear 343 and the spur gear set 34 are meshed together. A right-angle gear set 341 is installed on the top of the support shaft 344. The other side of the right-angle gear set 341 is connected to the connecting shaft 32. Reference Figure 5-Figure 7As shown, when the connecting shaft 32 rotates, the supporting shaft 344 is driven to rotate simultaneously through the right-angle gear set 341 fixed thereto, and the small gear 343 at the bottom of the supporting shaft 344 rotates. The spur gear set 34 is composed of a large gear and a small gear, wherein the large gear is meshed with the small gear 343. When the small gear 343 rotates, the spur gear set 34 is rotated. Due to the gear ratio difference, the spur gear set 34 rotates slower than the small gear 343, and the large gear 342 is meshed with the small gear in the spur gear set 34. Driven by the rotation of the spur gear set 34, the large gear 342 is driven to rotate more slowly than the spur gear set 34, thereby completing the speed adjustment, gradually slowing down the rapid rotation, driving the sprocket 35 to rotate slowly, and driving the chain 33 meshed with it to rotate slowly around it; The chain 33 and the sprocket 35 are meshed and connected. A movable block 333 is installed on the top of the chain 33, and a connecting groove 332 is installed on the outside of the movable block 333. A sliding structure is formed between the connecting groove 332 and the movable block 333. A limit block 331 is fixed to the top of the connecting groove 332, and a connecting frame 334 is installed on the top of the limit block 331. The aeration plate 7 is installed inside the connecting frame 334, and the spiral impeller 8 is installed on the top of the connecting frame 334. The top of the connecting frame 334 is connected to the water wheel 321, and a sliding structure is formed between the limit block 331 and the chute plate 31. Reference Figure 4-Figure 7 As shown, when the chain 33 rotates slowly, a group of chain links in the chain 33 are rotatably connected to the movable block 333. When the chain 33 rotates, the movable block 333 is driven to move accordingly. When it moves to the connection point of the sprocket 35, the limit block 331 and the slide plate 31 are slidingly limited, and the limit block 331 is fixedly connected to the connecting groove 332. When the movable block 333 moves to the arc corner, the movable block 333 slides to the other side along the connecting groove 332, so that the limit block 331 is in a relatively static state. When the movable block 333 rotates to the straight position of the chain 33, the movable block 333 pulls the connecting groove 332 and the limit block 331 at its top to translate in the opposite direction and reset. A connecting frame 334 is fixed on the top of the limit block 331. The aeration disk 7 is installed in the connecting frame 334, thereby driving the aeration disk 7 to translate back and forth, expanding the aeration range. At the same time, the water wheel 321 is connected to the connecting frame 334. When the connecting frame 334 translates, the water wheel 321 is displaced at the same time, so that bubbles continue to impact the water wheel 321, ensuring the output of rotational power. An oxygenation process of a novel oxygenation device for red claw crayfish comprises the following steps: S1. Preparation: Assemble the filter 5 with the air inlet of the air pump 4. Connect the air pipe 61 between the connecting pipe 6 and the air outlet of the air pump 4. Then, according to the required depth of the aquaculture pond, layer the aeration plates 7 to different depths. Pull the pull plates 23 to the sides to move the limit posts 231 away from the limit holes 22 on the outside of the bracket 1. Then, push the sleeve 21 up and down to move the support plate 2 to the appropriate depth. The aeration plates 7 are arranged in layers within the aquaculture pond to form a three-dimensional aeration network. S2. Aeration: Start the air pump 4 to pressurize the air and deliver it to the distribution pipeline connecting pipe 6. A filter 5 is installed in front of the air pump 4 to effectively remove dust and impurities. Intelligent valves are installed at the connection between the connecting pipe 6 and the hose 62 to control the uniform distribution of gas flow in each aeration branch. The gas enters the aeration plate 7 through the hose 62, generating fine bubbles through the special aperture, thereby improving the dissolved oxygen efficiency. S3. Dissolved oxygen enhancement: The bubbles generated by the aeration plate 7 have an upward force, which pushes the spiral impeller 8 designed above it. The blades act as fixed guides to guide the fluid to form a spiral upward flow, converting the axial kinetic energy of the gas-liquid mixture into radial and tangential kinetic energy, extending the residence time of the bubbles in the water. The rising bubbles create an impact force on the top water wheel 321, causing it to rotate rapidly. The greater the impact force of the bubbles, the faster the water wheel 321 rotates. The rotation of the water wheel 321 passes through the reduction ratio between the large and small gear sets, causing the sprocket 35 to rotate slowly, thereby driving the chain 33 to drive the top aeration plate 7 to slowly reciprocate and translate, expanding the aeration range and improving the uniformity of dissolved oxygen.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel oxygen enrichment device for red claw crayfish, comprising a bracket (1) and an air pump (4) mounted on one side thereof; Its characteristics are: The support plate (2) is sleeved on the outside of the support (1), and translation structures (3) are provided at both ends of the top of the support plate (2); a connecting pipe (6) is installed at one end of the support (1), an aeration disk (7) is installed on the top of the translation structure (3), and a spiral impeller (8) is provided on the top of the aeration disk (7); The translation structure (3) includes a slide plate (31) fixed to both sides of the top of the support plate (2), and sprockets (35) are installed on both sides of the bottom of the slide plate (31), a chain (33) is provided on the outside of the sprocket (35), a spur gear set (34) is installed on one side of the sprocket (35), and a connecting shaft (32) is provided at one end of the top of the slide plate (31).

2. The novel oxygen enrichment device for red claw crayfish according to claim 1, characterized in that: The support plate (2) comprises a sleeve (21) fixed at a middle position of the support plate (2), and pull plates (23) are provided at both ends of the sleeve (21), movable grooves (24) are provided at the top and bottom of both ends of the sleeve (21), and limiting holes (22) are provided at both ends of the bracket (1).

3. The novel oxygen enrichment device for red claw crayfish according to claim 2, characterized in that: Limiting columns (231) are fixed to the top and bottom of the opposite end of the pull plate (23), and a protrusion (233) is provided at the opposite end of the limiting column (231). A spring (232) is sleeved on the outside of the limiting column (231).

4. The novel oxygen enrichment device for red claw crayfish according to claim 1, characterized in that: A water wheel (321) is installed outside the connecting shaft (32), and the water wheel (321) is located on the top of the spiral impeller (8). A slider (323) is provided inside the water wheel (321), and a slide rail (322) is provided on the outer wall of the connecting shaft (32) outside the slider (323). A sliding structure is formed between the slide rail (322) and the slider (323).

5. The novel oxygen enrichment device for red claw crayfish according to claim 1, characterized in that: The chain (33) and the sprocket (35) are meshed and connected. A movable block (333) is installed on the top of the chain (33), and a connecting groove (332) is installed on the outside of the movable block (333). A sliding structure is formed between the connecting groove (332) and the movable block (333).

6. The novel oxygen enrichment device for red claw crayfish according to claim 5, characterized in that: A limiting block (331) is fixed to the top of the connecting groove (332), and a connecting frame (334) is installed on the top of the limiting block (331). The aeration plate (7) is installed inside the connecting frame (334), and the spiral impeller (8) is installed on the top of the connecting frame (334). The top of the connecting frame (334) is connected to the water wheel (321), and a sliding structure is formed between the limiting block (331) and the chute plate (31).

7. The novel oxygen enrichment device for red claw crayfish according to claim 1, characterized in that: A large gear (342) is installed at the bottom of the sprocket (35) on one side of the spur gear set (34), and the large gear (342) and the spur gear set (34) are meshed and connected. A support shaft (344) is installed on one side of the spur gear set (34), and a small gear (343) is installed at the bottom of the support shaft (344).

8. The novel oxygen enrichment device for red claw crayfish according to claim 7, characterized in that: The pinion (343) and the spur gear set (34) are meshed and connected, a right-angle gear set (341) is installed on the top of the support shaft (344), and the other side of the right-angle gear set (341) is connected to the connecting shaft (32).

9. The novel oxygen enrichment device for red claw crayfish according to claim 1, characterized in that: The bottom end of the connecting pipe (6) is connected to an air pipe (61), and the other end of the air pipe (61) is connected to the air outlet of the air pump (4). Both sides of the connecting pipe (6) are connected to hoses (62), and the other end of the hoses (62) is connected to the bottom of the aeration plate (7). The air inlet of the air pump (4) is installed with a filter screen (5), and the filter screen (5) is in an outward expansion shape.

10. An oxygenation process using the novel oxygenation device for red claw crayfish according to claim 9, comprising the following steps, characterized in that: S1. Preparation: Assemble the filter (5) with the air inlet of the air pump (4), connect the connecting pipe (6) and the air outlet of the air pump (4) with the air pipe (61), and then layer the aeration disc (7) to different depths according to the depth requirements of the culture pond. Pull the pull plate (23) to both sides to drive the limit column (231) away from the limit hole (22) outside the bracket (1), and then push the sleeve (21) up and down to move the support plate (2) to the appropriate depth, so that the aeration disc (7) is arranged in layers in the culture pond to form a three-dimensional aeration network; S2. Aeration operation: Start the air pump (4) to pressurize the air and deliver it to the distribution pipeline connecting pipe (6). The air pump (4) is provided with a filter (5) in front to effectively remove dust and impurities in the dust. The connection between the connecting pipe (6) and the hose (62) is equipped with an intelligent valve to control the uniform distribution of the gas flow of each aeration branch. The gas enters the aeration plate (7) through the hose (62) and generates fine bubbles through the special aperture to improve the dissolved oxygen efficiency. S3. Dissolved oxygen enhancement: The aeration plate (7) generates bubbles with rising power, which pushes the spiral impeller (8) designed above it, so that the blades act as fixed guides to guide the fluid to form a spiral upward flow, converting the axial kinetic energy of the gas-liquid mixture into radial and tangential kinetic energy, prolonging the residence time of the bubbles in the water, and the rising bubbles exert an impact on the water wheel (321) at the top, causing it to rotate rapidly. The greater the impact force of the bubbles, the faster the water wheel (321) rotates. The water wheel (321) rotates through the reduction ratio between the large and small gear sets, causing the sprocket (35) to rotate slowly, so that the chain (33) drives the aeration plate (7) at the top to slowly reciprocate and translate, so that the aeration range is expanded and the uniformity of dissolved oxygen is improved.

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