Rotary side-discharge oxygenation device for eel intensive culture pond

By designing a rotating side-discharge aeration device, the aerator is rotated and raised by using a motor-driven gear and ring gear mechanism and a hydraulic rod to control the adjustment plate. This solves the problems of uneven oxygenation and pool wall stain accumulation in eel farming, and improves oxygen dissolution efficiency and aeration efficiency.

CN224125007UActive Publication Date: 2026-04-17HUIZHOU HUALONG YONGLI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU HUALONG YONGLI IND CO LTD
Filing Date
2025-07-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing aeration devices for eel farming suffer from uneven oxygenation and low efficiency due to the fixed location of the aerators, failing to meet the dissolved oxygen requirements of high-density farming.

Method used

A rotating side-discharge aeration device was designed. The horizontal rotation of the aerator is achieved by a motor driving a gear and gear ring mechanism, and the vertical lifting of the adjustment plate is controlled by a hydraulic rod. Combined with the inclined aerator and scraper structure, uniform aeration is achieved in different water depth areas, while scraping off the pool wall dirt and reducing power consumption.

Benefits of technology

It achieves uniform oxygenation in the aquaculture pond, improves oxygen dissolution efficiency, prolongs the residence time of air bubbles in the water, solves the problems of uneven oxygenation and accumulation of dirt on the pond walls, and reduces power consumption.

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Abstract

The utility model relates to the technical field of aquaculture equipment, in particular to a rotary side-discharge oxygenation device for an eel intensive culture pond, which comprises a culture pond and an adjusting structure on the culture pond, the adjusting structure comprises a gear ring, the gear ring is rotatably connected onto the culture pond, a guide plate is fixedly connected onto the gear ring, and a connecting ring is slidably connected onto the guide plate. A connecting ring is installed on the culture pond, an annular pipe is installed on the connecting ring, a plurality of aerators are installed on the annular pipe and are arranged in an inclined mode, a protective cover is fixedly connected to the culture pond, two adjusting plates are connected to the protective cover in a sliding mode, and the adjusting plates are connected with the connecting ring in a sliding mode. The up-down movement of the adjusting plate is matched with the rotation of the gear ring, so that the position of the aerator can be further adjusted, the disturbance to water is increased, and the oxygenation efficiency and uniformity are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of aquaculture equipment technology, specifically a rotating side-discharge aeration device for intensive eel culture ponds. Background Technology

[0002] In the intensive farming of eels, dissolved oxygen levels in the water play a decisive role in the growth and health of the eels. As an aquaculture species with high dissolved oxygen requirements, the physiological activities of eels, such as respiration, metabolism, feeding, digestion, and immune function, are closely related to the dissolved oxygen levels in the water. Appropriate and sufficient dissolved oxygen levels can not only promote the metabolism of eels, improve their feeding efficiency and feed conversion rate, and accelerate their growth rate, but also enhance their immunity and reduce the probability of disease, thereby ensuring the profitability of farming. Therefore, using oxygenation devices to maintain the dissolved oxygen levels in the water has become a necessary measure in the eel farming process.

[0003] However, most existing oxygenation methods use a single aerator in a fixed location for oxygenation. Due to the limited range of the aerator, the oxygenation in the pond is uneven and the oxygenation efficiency is low, which is inconvenient to meet the dissolved oxygen requirements of high-density eel farming.

[0004] Therefore, it is necessary to design a device that can adjust the position of the aerator to improve oxygenation efficiency. Utility Model Content

[0005] Based on this, this solution provides a rotating side-discharge aeration device for intensive eel culture ponds. By adjusting the up-and-down movement of the regulating plate in conjunction with the rotation of the gear ring, the position of the aerator can be further adjusted, increasing the disturbance to the water and improving the aeration efficiency and uniformity.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A rotating side-discharge aeration device for intensive eel culture ponds includes a culture pond, an adjustable structure on the culture pond, the adjustable structure including a toothed ring, a toothed ring rotatably connected to the culture pond, a guide plate fixedly connected to the toothed ring, a connecting ring slidably connected to the guide plate, an annular pipe installed on the connecting ring, multiple aerators installed on the annular pipe, the aerators being inclined, a protective cover fixedly connected to the culture pond, two adjustable plates slidably connected to the protective cover, the adjustable plates being slidably connected to the connecting ring.

[0008] Preferably, an installation ring is rotatably connected to the aquaculture pond, and the toothed ring is fixedly connected to the installation ring.

[0009] Preferably, a mounting shaft is rotatably connected to the protective cover, and a gear is mounted on the mounting shaft, the gear meshing with a gear ring.

[0010] Preferably, a motor is installed on the protective cover, the mounting shaft is fixedly connected to the output shaft of the motor, and a first hydraulic rod is installed on the protective cover, wherein one of the adjusting plates is fixedly connected to the telescopic end of the first hydraulic rod.

[0011] Preferably, the aquaculture pond is provided with a scraping structure, the scraping structure including a scraper, and the scraper is rotatably connected to the aquaculture pond.

[0012] Preferably, a slider is fixedly connected to the connecting ring, and a groove is provided on the scraper, with the slider slidably connected to the groove.

[0013] Preferably, the aquaculture pond is provided with a sealing structure, the sealing structure includes a sealing plate, the sealing plate is slidably connected to the aquaculture pond, the sealing plate is provided with a through groove, a second hydraulic rod is installed inside the aquaculture pond, and the sealing plate is fixedly connected to the telescopic end of the second hydraulic rod.

[0014] Preferably, a grating plate is installed on the aquaculture pond, an installation plate is fixedly connected to the aquaculture pond, and a sewage pump is installed on the installation plate.

[0015] Preferably, the aerator oxygenates through an oxygenation structure, which includes a connecting plate, a connecting plate fixedly connected between the two adjusting plates, an oxygenation pump mounted on the connecting plate, a connecting frame fixedly connected to the connecting plate, and a rotary joint mounted on the connecting frame.

[0016] Preferably, an air supply pipe is installed on the rotary joint, and a fixed pipe is fixedly connected to the bottom end of the air supply pipe. The fixed pipe is fixedly connected to and communicates with the annular pipe. A flexible hose is installed at the exhaust port of the oxygen pump, and the other end of the flexible hose is installed on the rotary joint.

[0017] Compared with the prior art, the rotating side-discharge aeration device for eel intensive culture ponds provided by this utility model has the following characteristics:

[0018] The aerator is horizontally rotated by a motor-driven gear and ring gear mechanism, covering the aquaculture pond 360°. Simultaneously, a hydraulic rod controls the adjustment plate to vertically raise and lower the aerator, allowing it to cover different water depths and ensuring even oxygenation throughout the pond. The aerator is installed at an angle, generating a slanted bubble flow during operation, extending the bubble's residence time in the water and improving oxygen dissolution efficiency. The rotating motion of the connecting ring, through a slider and chute structure, causes the scraper to move, automatically scraping away dirt from the pond walls during oxygenation. The aeration adjustment mechanism and scraping structure share the same power source, eliminating the need for an additional power source and reducing energy consumption. A second hydraulic rod can push the sealing plate to slide, aligning the channel with the drain outlet for directional wastewater flow. This solves the problems of uneven oxygenation, dirt accumulation on the pond walls, and low wastewater discharge efficiency in aquaculture ponds. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0021] Figure 2 for Figure 1 The diagram shows an enlarged view of the structure of region A.

[0022] Figure 3 This is a schematic diagram of the connection structure between the scraper and the aquaculture pond in Embodiment 1 of this utility model;

[0023] Figure 4 for Figure 3 The diagram shows an enlarged view of the structure of region B.

[0024] Figure 5 for Figure 3 The diagram shows an enlarged view of the C region structure.

[0025] Figure 6 This is a schematic diagram of the connection structure between the protective cover and the aquaculture pond in Embodiment 1 of this utility model;

[0026] Figure 7 for Figure 6 The diagram shows an enlarged view of the structure of region D.

[0027] Figure 8 This is a schematic diagram of the connection structure between the gear and the gear ring in Embodiment 1 of this utility model.

[0028] Reference numerals in the attached drawings: 1. Aquaculture pond; 2. Adjustment structure; 201. Toothed ring; 202. Connecting ring; 203. Annular pipe; 204. Aerator; 205. Mounting ring; 206. Mounting shaft; 207. Gear; 208. Motor; 209. Protective cover; 210. Adjustment plate; 211. First hydraulic rod; 212. Guide plate; 3. Scraping structure; 301. Scraper; 302. Slider; 303. Slide groove; 4. Sealing structure; 401. Sealing plate; 402. Second hydraulic rod; 403. Through groove; 404. Grating plate; 405. Mounting plate; 406. Sewage pump; 5. Aeration structure; 5. Connecting plate; 501. Aeration pump; 502. Connecting frame; 503. Rotary joint; 504. Hose; 505. Air supply pipe; 506. Fixed pipe; 507. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0030] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] Example 1

[0032] Since existing aerators are generally fixed in position, their oxygenation efficiency is low. To improve oxygenation efficiency, a device that can adjust the position of the aerator was designed, and the specific scheme is as follows:

[0033] like Figure 1-8 As shown, the rotating side-discharge aeration device for intensive eel culture ponds includes a culture pond 1, an adjustment structure 2 on the culture pond 1, the adjustment structure 2 including a toothed ring 201, the toothed ring 201 being rotatably connected to the culture pond 1, a guide plate 212 being fixedly connected to the toothed ring 201, a connecting ring 202 being slidably connected to the guide plate 212, an annular pipe 203 being installed on the connecting ring 202, and multiple aerators 204 being installed on the annular pipe 203. The aerators 204 are inclined. A protective cover 209 is fixedly connected to the culture pond 1, and two adjustment plates 210 are slidably connected to the protective cover 209. The adjustment plates 210 are slidably connected to the connecting ring 202.

[0034] A mounting ring 205 is rotatably connected to the aquaculture pond 1. A gear ring 201 is fixedly connected to the mounting ring 205. A mounting shaft 206 is rotatably connected to the protective cover 209. A gear 207 is mounted on the mounting shaft 206 and meshes with the gear ring 201. A motor 208 is mounted on the protective cover 209. The mounting shaft 206 is fixedly connected to the output shaft of the motor 208. A first hydraulic rod 211 is mounted on the protective cover 209. When the first hydraulic rod 211 is activated, its telescopic end retracts, causing the adjusting plate 210 to move downward. The adjusting plate 210 causes the connecting ring 202 to move downward. The connecting ring 202 slides against the guide plate 212. The guide plate 212 ensures that the connecting ring 202 moves smoothly. The up-and-down movement of the adjusting plate 210, in conjunction with the rotation of the gear ring 201, facilitates further adjustment of the position of the aerator 204, increases the disturbance to the water, and improves the oxygenation efficiency and uniformity. One of the adjusting plates 210 is fixedly connected to the telescopic end of the first hydraulic rod 211.

[0035] The aquaculture pond 1 is equipped with a scraping structure 3, which includes a scraper 301. The scraper 301 is rotatably connected to the aquaculture pond 1. A slider 302 is fixedly connected to the connecting ring 202. The connecting ring 202 drives the scraper 301 to move through the slider 302. The scraper 301 can scrape off the dirt on the inner wall of the aquaculture pond 1 and play a cleaning role. The scraper 301 is equipped with a sliding groove 303, and the slider 302 is slidably connected to the sliding groove 303.

[0036] A sealing structure 4 is provided on the aquaculture pond 1. The sealing structure 4 includes a sealing plate 401. The sealing plate 401 is slidably connected to the aquaculture pond 1. The sealing plate 401 is provided with a through groove 403. A second hydraulic rod 402 is installed inside the aquaculture pond 1. The sealing plate 401 is fixedly connected to the telescopic end of the second hydraulic rod 402. A grid plate 404 is installed on the aquaculture pond 1. An installation plate 405 is fixedly connected to the aquaculture pond 1. A sewage pump 406 is installed on the installation plate 405. When the second hydraulic rod 402 is started, its telescopic end extends and drives the sealing plate 401 to slide. When it slides to a certain position, the through groove 403 corresponds to the sewage outlet, and the sewage enters the sewage pump 406 from the sewage outlet. Finally, the sewage is discharged by the sewage pump 406 on the side.

[0037] Aerator 204 aerates water through oxygenation structure 5. Oxygenation structure 5 includes connecting plate 501, which is fixedly connected between two adjusting plates 210. Aeration pump 502 is installed on connecting plate 501. Connecting frame 503 is fixedly connected to connecting plate 501. Rotary joint 504 is installed on connecting frame 503. Air supply pipe 506 is installed on rotary joint 504. Fixed pipe 507 is fixedly connected to the bottom end of air supply pipe 506. Fixed pipe 507 is fixedly connected and communicates with annular pipe 203. When aeration pump 502 is started, it delivers gas through hose 505, air supply pipe 506, and fixed pipe 507 into annular pipe 203. Finally, the gas is ejected from aerator 204, which is inclined on annular pipe 203. The bubbles generated by aeration form an oblique flow in the water, thereby improving the oxygenation efficiency. Hose 505 is installed at the exhaust port of aeration pump 502. The other end of hose 505 is installed on rotary joint 504.

[0038] Working principle:

[0039] During aeration, the oxygenation pump 502 is started, and gas is delivered to the annular pipe 203 through the hose 505, the air supply pipe 506, and the fixed pipe 507. Then, the gas is sprayed out from the aerator 204, which is inclined on the annular pipe 203. The bubbles generated by aeration form an oblique flow in the water, thereby improving the oxygenation effect. At the same time, the motor 208 is started, which drives the mounting shaft 206 to rotate, causing the gear 207 to rotate. The gear 207 drives the gear ring 201 to rotate. When the gear ring 201 rotates, it drives the connecting ring 202 to rotate through the guide plate 212. The connecting ring 202 drives the annular pipe 203 to rotate, thereby adjusting the position of the aerator 204. Due to the setting of the rotary joint 504, the rotation process does not affect the gas delivery. Furthermore, the connecting ring 202 drives the scraper 301 to move through the slider 302. The scraper 301 can scrape off the dirt on the inner wall of the aquaculture pond 1, thus playing a cleaning role.

[0040] In addition, the first hydraulic rod 211 is activated, and its telescopic end retracts, causing the adjusting plate 210 to move downward, which in turn causes the connecting ring 202 to move downward. The connecting ring 202 slides against the guide plate 212, and the guide plate 212 ensures that the connecting ring 202 moves smoothly. The up and down movement of the adjusting plate 210, in conjunction with the rotation of the toothed ring 201, facilitates further adjustment of the position of the aerator 204, increases the disturbance to the water, and improves the oxygenation efficiency and uniformity. During this process, the slider 302 slides in the trough 303. When it is necessary to discharge sewage from the aquaculture pond 1, the second hydraulic rod 402 is activated, and its telescopic end extends, causing the sealing plate 401 to slide to a certain position. The through groove 403 corresponds to the sewage outlet, and the sewage enters the sewage pump 406 from the sewage outlet, and then the sewage is discharged by the side sewage pump 406.

[0041] The aeration device in this solution uses a motor-driven gear and ring gear mechanism to achieve horizontal rotation of the aerator, while a hydraulic rod controls the adjustment plate to achieve vertical lifting, allowing the aerator to cover different water depth areas in the aquaculture pond and ensuring balanced oxygenation throughout the entire pond.

[0042] The aerator is installed at an angle to create an oblique bubble flow, which prolongs the residence time of the bubbles in the water and improves the oxygen dissolution efficiency.

[0043] The rotational motion of the connecting ring 202, through the structure of the slider and the chute, causes the scraper 301 to move, automatically scraping away the dirt on the pool wall while increasing oxygen.

[0044] The aeration adjustment mechanism and the scraping structure use the same power source, which reduces the loss of electrical energy.

[0045] The second hydraulic rod 402 pushes the sealing plate 401 to slide, so that the through groove 403 is aligned with the sewage outlet, thereby realizing the directional flow of sewage.

[0046] It solves the problems of uneven oxygenation, pool wall stains, and low sewage discharge efficiency in aquaculture ponds.

[0047] Example 2

[0048] In this embodiment, the structure of the oxygenation device is basically the same as that of the oxygenation device in Embodiment 1. The difference is that the scraper 301 is hinged to the connecting ring 202 through a flexible connecting arm. The elasticity of the flexible connecting arm allows the scraper to adapt to the pool wall. In addition, a rubber block is set at the bottom of the scraper. The structure is simple and better prevents jamming.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A rotating side discharge oxygenation device for eel intensive rearing ponds, comprising a rearing pond, characterized in that: The aquaculture pond has an adjustable structure, which includes a toothed ring. The toothed ring is rotatably connected to the aquaculture pond. A guide plate is fixedly connected to the toothed ring. A connecting ring is slidably connected to the guide plate. An annular pipe is installed on the connecting ring. Multiple aerators are installed on the annular pipe. The aerators are inclined. A protective cover is fixedly connected to the aquaculture pond. Two adjusting plates are slidably connected to the protective cover. The adjusting plates are slidably connected to the connecting ring.

2. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 1, wherein: An installation ring is rotatably connected to the aquaculture pond, and the toothed ring is fixedly connected to the installation ring.

3. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 2, wherein: A mounting shaft is rotatably connected to the protective cover, and a gear is mounted on the mounting shaft, which meshes with a gear ring.

4. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 3, wherein: A motor is installed on the protective cover, and the mounting shaft is fixedly connected to the output shaft of the motor. A first hydraulic rod is installed on the protective cover, and one of the adjusting plates is fixedly connected to the telescopic end of the first hydraulic rod.

5. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 1, wherein: The aquaculture pond is equipped with a scraping structure, which includes a scraper, and the scraper is rotatably connected to the aquaculture pond.

6. The rotating side-discharge aeration device for eel intensive culture ponds according to claim 5, characterized in that: A slider is fixedly connected to the connecting ring, and a groove is provided on the scraper, with the slider slidably connected to the groove.

7. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 1, wherein: The aquaculture pond is equipped with a sealing structure, which includes a sealing plate. The sealing plate is slidably connected to the aquaculture pond and has a through groove. A second hydraulic rod is installed inside the aquaculture pond, and the sealing plate is fixedly connected to the telescopic end of the second hydraulic rod.

8. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 7, wherein: A grating plate is installed on the aquaculture pond, and an installation plate is fixedly connected to the aquaculture pond. A sewage pump is installed on the installation plate.

9. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 1, wherein: The aerator oxygenates through an oxygenation structure, which includes a connecting plate. A connecting plate is fixedly connected between two adjusting plates. An oxygenation pump is installed on the connecting plate. A connecting frame is fixedly connected to the connecting plate, and a rotary joint is installed on the connecting frame.

10. The rotating side-draw oxygenation apparatus for eel finishing ponds of claim 9, wherein: The rotary joint is equipped with an air supply pipe, and a fixed pipe is fixedly connected to the bottom end of the air supply pipe. The fixed pipe is fixedly connected to and communicates with the annular pipe. A flexible hose is installed at the exhaust port of the oxygen pump, and the other end of the flexible hose is installed on the rotary joint.