Ammonia-nitrogen purifying device for circulating water aquaculture water body

Abstract

The utility model discloses a kind of circulating water aquaculture water body ammonia-nitrogen purification device, it is related to aquaculture technical field, including pool body, waterproof ring is fixedly installed in the middle part of pool body, the inboard lower end of waterproof ring is fixedly installed with mounting bracket, the bottom of mounting bracket is fixedly installed with driving motor, the output end of driving motor is fixedly installed with carousel and is penetrated mounting bracket.This utility model uses above-mentioned structure, by setting carousel driven purification and oxygen supply cooperation mechanism, so that during use can synchronously drive suction, drainage and oxygen supply component rotation, realize pool body global uniform suction water, dispersed discharge purified water and global aeration oxygen supply, further reach circulating water ammonia-nitrogen efficient purification, water body dissolved oxygen is sufficient and the effect of water quality uniform, solve the water quality deviation caused by single position processing in prior art and the problem that lack of uniform oxygen supply is prone to anoxic.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to an ammonia nitrogen purification device for recirculating aquaculture water. Background Technology

[0002] Aquaculture, as an important part of agricultural production, is a production industry in which humans utilize waters available for aquaculture (including planting) and, based on the ecological habits of the aquatic organisms and their different requirements for aquatic environmental conditions, employ specialized aquaculture technologies and facilities to carry out the cultivation of aquatic economic animals and plants. According to the nature of the water area, it can be divided into marine aquaculture and freshwater aquaculture. According to the aquaculture and planting objects, it covers a variety of categories such as fish, shrimp, crabs, shellfish, as well as algae, water chestnuts, lotus, and lotus roots. It plays a key role in ensuring the supply of aquatic products and promoting fisheries.

[0003] In aquaculture, maintaining a good water quality environment necessary for the survival of farmed organisms requires filtration and purification of circulating water. Currently, Chinese patent CN218736661U discloses a recirculating aquaculture device for shrimp. This device relates to the field of shrimp farming technology. Its purification device includes a sedimentation tank, a filtration tank, a disinfection tank, an adsorption tank, and a rearing tank, with the rearing tank located above the sedimentation tank. An electric telescopic rod is fixedly installed on one side of the outer wall of the purification device, and the output end of the electric telescopic rod is connected to a water-blocking pipe. This device achieves sedimentation and separation of impurities in wastewater through the sedimentation tank, filters floating matter in the water through the filtration tank and filter screen, removes toxic substances from the water through the disinfection tank, and adsorbs chemical substances from the disinfected water through the adsorption tank. Its workflow is as follows: the electric telescopic rod is activated to align the round hole of the water-blocking pipe with pipe A. Water from the rearing tank enters the sedimentation tank through pipe A for sedimentation, and then enters the filtration tank through channel A to complete filtration. This device demonstrates certain application advantages in the purification of recirculating water for shrimp farming.

[0004] However, the above-mentioned technical solutions still have obvious defects and shortcomings in practical applications: On the one hand, the filtration system adopts the method of purifying water by drawing it from one side and then discharging it back into the tank. This method cannot uniformly draw and purify water in different locations within the aquaculture tank, resulting in significant differences in water quality between the side away from the purification drain pipe and the side closer to the purified drain pipe during the overall use period. Water quality deviations are prone to occur in different locations, making it difficult to ensure the overall uniformity of water quality within the aquaculture tank. On the other hand, the device lacks a uniform oxygen supply and aeration structure. In aquaculture, especially in high-density aquaculture scenarios, insufficient dissolved oxygen in the water can easily lead to hypoxia, which in turn affects the survival and growth of the cultured organisms and is not conducive to the stable improvement of aquaculture efficiency. Therefore, the existing aquaculture recirculating water purification device still needs further design improvements to solve the problems of poor water quality uniformity and insufficient oxygen supply. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes an ammonia nitrogen purification device for recirculating aquaculture systems, which can more effectively solve the problems described above.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model proposes an ammonia nitrogen purification device for recirculating aquaculture water bodies, including a pool body. A waterproof ring is fixedly installed in the middle of the pool body. An installation frame is fixedly installed on the lower inner side of the waterproof ring. A drive motor is fixedly installed at the bottom of the installation frame. A turntable is fixedly installed through the installation frame at the output end of the drive motor. A purification mechanism is fixedly installed on the top of the turntable. An oxygen supply mechanism is fixedly installed on the top of the purification mechanism. The oxygen supply mechanism is arranged on the outside of the purification mechanism.

[0008] The purification mechanism includes a water pump, which is fixedly installed on the top of the turntable. A suction pipe is fixedly installed at the input end of the water pump, and a delivery pipe is fixedly installed at the output end of the water pump. An annular water suction module is fixedly installed at the output end of the suction pipe, which extends to the outside of the waterproof ring. A filter module is fixedly installed at the output end of the delivery pipe. An oxygen supply mechanism is fixedly installed on the top of the delivery pipe, and the suction pipe is rotatably connected to the outside of the waterproof ring.

[0009] Furthermore, the annular water-absorbing module includes an annular tube, which is rotatably connected to the lower end of the outer surface of the waterproof ring. The top of the annular tube is fixedly connected to the outer end of the suction tube. The output end of the annular tube is connected to the input end of the suction tube. Suction heads are fixedly installed on the outer surface of the annular tube in a ring-shaped arrangement at equal intervals.

[0010] Furthermore, a filter screen is threadedly connected to the outer side of the suction head, and the filter screen is generally arranged in a long cylindrical shape.

[0011] Furthermore, the filter module includes a purification box, which is fixedly installed on the top of the delivery pipe. The input end of the purification box is connected to the output end of the delivery pipe. A purification core is installed inside the purification box. The top of the purification box is covered with a sealing cover. A drain hopper is fixedly installed on the top of the sealing cover. Side drain pipes are fixedly installed at equal intervals in a ring at the outer output end of the drain hopper.

[0012] Furthermore, a fixing plate is fixedly installed at equal intervals in a ring at the bottom of the sealing cover, and slots are opened at equal intervals in a ring at the upper surface of the outer surface of the purification box. The fixing plate is inserted into the slot, and a mounting screw is threaded to the lower end of the fixing plate. The end of the mounting screw passes through the fixing plate and is threaded to the purification box.

[0013] Furthermore, purified drainage pipes are fixedly installed on the outer side of the side drain pipe in a linear arrangement at equal intervals, the installation screw is a hand-tight screw, and a sealing gasket is provided at the bottom edge of the sealing cover.

[0014] Furthermore, the oxygen supply mechanism includes an installation plate, which is fixedly installed on the top of the drainage hopper. An air pipe is fixedly installed on the top of the installation plate, and an air pump is fixedly installed on one side of the air pipe. The output end of the air pump is connected to the input end of the air pipe. Oxygen supply pipes are fixedly installed at equal intervals in a ring at the top output end of the air pipe. The lower end of the oxygen supply pipe extends into the water in the pool. An oxygen supply main pipe is fixedly installed at the bottom of the oxygen supply pipe. Oxygen supply branch pipes are fixedly installed at equal intervals in a ring on the outer side of the oxygen supply main pipe.

[0015] The beneficial effects of this utility model are:

[0016] 1. During the application of this technical solution, by setting up a drive mechanism and turntable that can synchronously drive the suction pipe and delivery pipe to rotate, combined with the annular water suction module and the related structure of decentralized drainage, the action of suctioning and discharging purified water can be dynamically carried out throughout the entire area of ​​the pool during use, and is not limited to a fixed area. This allows the water in each area of ​​the pool to be evenly suctioned and purified, while the purified water is evenly replenished. This effectively avoids the situation where some areas of water cannot be purified for a long time or where purified water accumulates excessively in some areas. It achieves the effect of maintaining the same water quality in different areas of the pool, and solves the problem of water quality deviation in different parts of the pool caused by suction and drainage at a single location in the existing technology. In addition, the filter screen can intercept solid impurities in the water, ensuring the stability and continuity of the water suction process. The purification core can effectively remove ammonia nitrogen from the water, ensuring the purification effect of the circulating water.

[0017] 2. During the application of this technical solution, by setting up an oxygen supply mechanism that operates synchronously with the turntable, in conjunction with an air pump, oxygen supply pipe, and related structures for dispersed oxygen release, air can be released into different areas of the pool simultaneously with the pumping and draining of water, increasing the dissolved oxygen content in the water. This achieves the effect of uniform oxygen supply to the pool water, solving the problem of localized oxygen deficiency in the pool water caused by the lack of a uniform oxygen supply aeration device in existing technologies. At the same time, the purification tank sealing cover is fixed by a fixing plate and a hand-tightening installation screw, making it easy for staff to replace the purification core when needed, improving the convenience of device maintenance. With the synergistic effect of all structures, it can not only efficiently complete the purification of ammonia nitrogen in circulating water, but also meet the core requirements of aquaculture for water quality uniformity and dissolved oxygen in the water. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view structural diagram of this utility model;

[0020] Figure 3 This is a front view schematic diagram of the purification mechanism and oxygen supply mechanism of this utility model;

[0021] Figure 4 This is a bottom view schematic diagram of the purification mechanism and oxygen supply mechanism of this utility model;

[0022] Figure 5 This is a top view of the disassembled purification mechanism and oxygen supply mechanism of this utility model.

[0023] Figure 6 This is a top-view structural diagram of the purification mechanism and oxygen supply mechanism of this utility model in their disassembled state.

[0024] In the diagram: 1. Pool body; 2. Waterproof ring; 3. Mounting frame; 4. Drive motor; 5. Turntable; 6. Purification mechanism; 61. Water pump; 62. Suction pipe; 63. Delivery pipe; 64. Annular water suction module; 641. Annular pipe; 642. Suction head; 643. Filter screen; 65. Filter module; 651. Purification box; 652. Purification core; 653. Sealing cover; 654. Drainage hopper; 655. Side drainage pipe; 656. Fixing plate; 657. Slot; 658. Mounting screw; 659. Purified drainage pipe; 7. Oxygen supply mechanism; 71. Mounting plate; 72. Air pipe; 73. Air pump; 74. Oxygen supply pipe; 75. Main oxygen supply pipe; 76. Oxygen supply branch pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] A recirculating aquaculture water ammonia nitrogen purification device includes a pool body 1. A waterproof ring 2 is fixedly installed in the middle of the pool body 1. An installation frame 3 is fixedly installed on the lower inner side of the waterproof ring 2. A drive motor 4 is fixedly installed at the bottom of the installation frame 3. A turntable 5 is fixedly installed through the installation frame 3 at the output end of the drive motor 4. A purification mechanism 6 is fixedly installed on the top of the turntable 5. An oxygen supply mechanism 7 is fixedly installed on the top of the purification mechanism 6. The oxygen supply mechanism 7 is arranged on the outside of the purification mechanism 6.

[0028] The purification mechanism 6 includes a water pump 61, which is fixedly installed on the top of the turntable 5. A suction pipe 62 is fixedly installed at the input end of the water pump 61, and a delivery pipe 63 is fixedly installed at the output end. An annular water-absorbing module 64 is fixedly installed at the output end of the suction pipe 62, extending to the outside of the waterproof ring 2. A filter module 65 is fixedly installed at the output end of the delivery pipe 63. An oxygen supply mechanism 7 is fixedly installed on the top of the delivery pipe 63. The suction pipe 62 is rotatably connected to the outside of the waterproof ring 2. During application, the device utilizes a linkage structure between the drive motor 4 and the turntable 5, allowing the drive motor 4 to directly rotate the turntable 5. The purification mechanism 6 on top of the turntable 5 moves synchronously, and the oxygen supply mechanism 7 on top of the purification mechanism 6 also moves with it. When the water pump 61 in the purification mechanism 6 starts, it performs water suction through the suction pipe 62 at the input end. The annular water-absorbing module 64 connected to the output end of the suction pipe 62 cooperates with the water pump 61 to contact the pool body. The water pump 61 can draw water from a wider area. The drawn water is then transported to the filter module 65 via the delivery pipe 63 at the output end of the pump 61. The filter module 65 then purifies the water to remove ammonia nitrogen. The oxygen supply mechanism 7 is located outside the purification mechanism 6. As the purification mechanism 6 moves with the rotating disc 5, the oxygen supply mechanism 7 can simultaneously supply oxygen to the water in the pool 1. This operation mode allows the purification mechanism 6 to move beyond a fixed position to draw water and purify it. Instead, it can dynamically cover different areas of the pool 1 with the rotating disc 5, ensuring that more water in the pool 1 can be drawn to the filter module 65 for treatment. At the same time, the synchronous movement of the oxygen supply mechanism 7 allows oxygen to be more comprehensively integrated into the water, preventing situations where the water in the pool 1 cannot be purified for a long time or where the oxygen supply is insufficient. This effectively ensures the water purification effect and basic oxygen supply conditions required for recirculating aquaculture, helps maintain the stability of the aquaculture water, meets the core requirements of recirculating aquaculture for ammonia nitrogen purification, and provides a more suitable aquatic environment for the aquaculture organisms.

[0029] Combination Figures 4-6 As shown, the annular water absorption module 64 includes an annular tube 641, which is rotatably connected to the lower end of the outer surface of the waterproof ring 2. The top of the annular tube 641 is fixedly connected to the outer end of the suction tube 62. The output end of the annular tube 641 is connected to the input end of the suction tube 62. Suction heads 642 are fixedly installed on the outer surface of the annular tube 641 in an annular arrangement at equal intervals. A filter screen 643 is threadedly connected to the outer side of the suction head 642. The filter screen 643 is generally arranged in a long cylindrical shape.

[0030] In the above-described embodiments of this application, the device, during its application, utilizes an annular water suction module 64 comprising an annular tube 641, a suction head 642, and a long cylindrical filter screen 643. This allows for efficient water suction in conjunction with the suction pipe 62. When the suction pipe 62 initiates its suction action, the annular tube 641 operates synchronously with it. Since the suction heads 642 are arranged in a ring at equal intervals on the outer surface of the annular tube 641, these suction heads 642 can contact the water in the pool 1 from different directions around the annular tube 641, continuously drawing water into themselves. Through the connection between the annular tube 641 and the suction pipe 62, the sucked water is smoothly transported into the suction pipe 62, allowing the suction operation to be expanded beyond a single location and cover the entire annular area. The annular suction module 641 covers a wider area of ​​water, ensuring that more water can be drawn in for subsequent treatment. Meanwhile, the long cylindrical filter screen 643, threaded to the outside of the suction head 642, filters the water before it enters the suction head 642, intercepting solid impurities and preventing them from clogging the suction head 642 or suction pipe 62. This ensures smooth water suction and avoids interruptions or reduced efficiency due to blockages. This design not only expands the coverage of water suction, making it more comprehensive, but also ensures the stability of the suction process through the filtration effect of the filter screen 643. It provides excellent preconditions for subsequent circulating water purification, effectively improving the practicality and reliability of the annular suction module 64 in water suction.

[0031] Example 2

[0032] Combination Figure 1 and Figures 3-6As shown, the filter module 65 includes a purification box 651, which is fixedly installed on the top of the delivery pipe 63. The input end of the purification box 651 is connected to the output end of the delivery pipe 63. A purification core 652 is installed inside the purification box 651. A sealing cover 653 covers the top of the purification box 651. A drain hopper 654 is fixedly installed on the top of the sealing cover 653. Side drain pipes 655 are fixedly installed in a ring at equal intervals on the outer output end of the drain hopper 654. A fixing plate 656 is fixedly installed in a ring at equal intervals on the bottom of the sealing cover 653. Slots 657 are formed in a ring at equal intervals on the upper surface of the outer surface of the purification box 651. The fixing plate 656 is inserted into the slot 657. A mounting screw 658 is threaded to the lower end of the fixing plate 656. The end of the mounting screw 658 passes through the fixing plate 656. 6 and purification tank 651 are threaded together. Purified drainage pipes 659 are fixedly installed on the outer side of the side drain pipe 655 in a linear arrangement at equal intervals. The mounting screw 658 is a hand-tight screw. A sealing gasket is provided at the bottom edge of the sealing cover 653. The oxygen supply mechanism 7 includes a mounting plate 71, which is fixedly installed on the top of the drain hopper 654. An air pipe 72 is fixedly installed on the top of the mounting plate 71. An air pump 73 is fixedly installed on one side of the air pipe 72. The output end of the air pump 73 is connected to the input end of the air pipe 72. An oxygen supply pipe 74 is fixedly installed on the top output end of the air pipe 72 in a ring arrangement at equal intervals. The lower end of the oxygen supply pipe 74 extends into the water in the pool 1. An oxygen supply main pipe 75 is fixedly installed at the bottom of the oxygen supply pipe 74. An oxygen supply branch pipe 76 is fixedly installed on the outer side of the oxygen supply main pipe 75 in a ring arrangement at equal intervals.

[0033] In the above-described embodiments of this application, the device, by setting up a filter module 65 and an oxygen supply mechanism 7, enables simultaneous ammonia nitrogen purification and oxygen supply in the water. After the water enters the purification tank 651 through the delivery pipe 63, the purification core 652 inside the purification tank 651 purifies the ammonia nitrogen in the water. The purified water flows into the drain hopper 654 at the top of the sealing cover 653 and is then discharged outward through the side drain pipe 655 outside the drain hopper 654. The purified water is further dispersed by the fine drain pipe 659 outside the side drain pipe 655, allowing the purified water to flow back into the pool 1 more evenly. The fixing plate 656 at the bottom of the sealing cover 653 is inserted into the slot 657 of the purification tank 651 and fixed by a hand-tightening installation screw 658. The operator only needs to turn the installation screw 658 to remove the sealing cover 653, facilitating the cleaning of the purification core 652 inside the purification tank 651. When replacing or maintaining the sealing cover 653, the sealing gasket at the bottom edge can prevent water leakage from the purification tank 651 through gaps. At the same time, after the air pump 73 of the oxygen supply mechanism 7 is started, it will deliver air to the air pipe 72, and the air pipe 72 will then introduce the air into the oxygen supply pipe 74. The lower end of the oxygen supply pipe 74 extends into the water of the pool 1 and connects to the main oxygen supply pipe 75. The oxygen supply branch pipe 76 on the outside of the main oxygen supply pipe 75 will release air evenly into the water of the pool 1 to replenish oxygen in the water of the pool 1. This design allows water purification and oxygen supply operations to be carried out in tandem. The purification core 652 effectively removes ammonia nitrogen from the water, and the oxygen supply branch pipe 76 achieves uniform oxygen supply. At the same time, the hand-tightening installation screw 658 makes the maintenance of the purification core 652 more convenient, the purified water drainage pipe 659 makes the return of purified water more even, and the sealing gasket ensures the sealing of the purification tank 651. Overall, the practicality and stability of the device are improved.

[0034] The working principle and advantages of this utility model are as follows: When using this device, first start the drive motor 4 and the water pump 61. When the drive motor 4 is running, its output end will drive the turntable 5 to rotate. The water pump 61 is fixed on the top of the turntable 5. The input end of the water pump 61 is connected to the suction pipe 62 and the output end is connected to the delivery pipe 63. Therefore, when the turntable 5 rotates, it will synchronously drive the suction pipe 62 and the delivery pipe 63 to rotate together. The outer end of the suction pipe 62 is connected to the annular water suction module 64. When the suction pipe 62 rotates, the annular water suction module 64 will rotate in the water in the pool 1. The suction head 642 on the module can continuously change the position of the water being sucked during rotation, sucking water from different areas of the pool 1. The filter screen 643 on the outside of the suction head 642 will intercept solid impurities in the water, preventing impurities from entering the suction pipe 62 or the water pump 61 and causing blockage, ensuring that the water suction process is stable and continuous.

[0035] After the suction water enters the water pump 61 through the suction pipe 62, it is then transported by the water pump 61 to the delivery pipe 63. Since the delivery pipe 63 rotates synchronously with the turntable 5, it continuously delivers the water to the simultaneously rotating filter module 65. After the water enters the purification chamber 651 of the filter module 65, the purification core 652 inside the chamber purifies the ammonia nitrogen in the water. The sealing cover 653 at the top of the purification chamber 651 is fixed to the mounting screw 658 by the fixing plate 656, and the sealing gasket at the bottom of the sealing cover 653... To prevent water leakage, when the purification core 652 needs to be replaced, the operator can unscrew the installation screw 658 and remove the sealing cover 653. The purified water will be discharged through the drain hopper 654 on the top of the sealing cover 653. The side drain pipe 655 on the outside of the drain hopper 654 will continuously change the drainage position as the delivery pipe 63 rotates. The purified water drain tube 659 on the side drain pipe 655 will further disperse the purified water, so that the water flows evenly into different areas of the pool 1, avoiding the accumulation of purified water in a single location.

[0036] While the suction pipe 62 and the delivery pipe 63 rotate with the turntable 5 to adjust the water suction and drainage positions, the oxygen supply mechanism 7 also rotates synchronously with the turntable 5. The mounting plate 71 of the oxygen supply mechanism 7 is fixed on the top of the drainage hopper 654. The air pipe 72 on the plate is connected to the air pump 73 and the oxygen supply pipe 74. After the air pump 73 is started, it will deliver air to the air pipe 72 and then introduce it into the oxygen supply main pipe 75 through the oxygen supply pipe 74. The oxygen supply branch pipe 76 on the oxygen supply main pipe 75 will release air into the water in different areas of the pool 1 as it rotates, increasing the dissolved oxygen content in the water. Throughout the process, the rotation of the turntable 5 always serves as the core power, synchronously driving the suction pipe 62 and the delivery pipe 63 to change positions, so that the action of suctioning water and discharging purified water can be carried out dynamically throughout the entire area of ​​the pool 1, not limited to a fixed area. This allows the water in each area of ​​the pool 1 to be evenly suctioned and purified, while also evenly replenishing the purified water. This effectively avoids the situation where some areas of water are not purified for a long time or where purified water accumulates excessively in some areas, ultimately promoting the consistency of water quality in different areas of the pool.

[0037] This technical solution uses the rotation of turntable 5 to drive the suction pipe 62 and the delivery pipe 63 to adjust their positions synchronously, fundamentally solving the water quality deviation problem caused by single-position suction and drainage in the existing technology. The annular water suction module 64 works in conjunction with the side drainage pipe 655 and the purified drainage thin pipe 659 to make the water suction and drainage coverage more comprehensive. The filter screen 643 ensures the stability of the suction process, the purification core 652 effectively removes ammonia nitrogen, and the synchronous rotation of the oxygen supply mechanism 7 solves the oxygen deficiency problem. With the synergistic effect of each structure, it can not only efficiently complete the purification of ammonia nitrogen in the circulating water, but also ensure the uniformity of water quality and sufficient dissolved oxygen in the pool 1, meeting the core requirements of aquaculture for circulating water quality. The hand-tightening installation screw 658 also makes it convenient for staff to maintain and replace the purification core 652, improving the ease of use of the device.

[0038] During the application of this device, the filter element used for ammonia nitrogen purification can be made of granular activated carbon (including coconut shell activated carbon and apricot shell activated carbon). This type of material has abundant micropores and a large specific surface area, resulting in a strong adsorption capacity for free ammonia. Natural zeolite (including clinoptilolite and mordenite) can also be used. This type of material can preferentially adsorb ionic ammonia NH4⁺ through ion exchange, has good chemical stability, and is relatively inexpensive. Modified functional materials, such as activated carbon or zeolite loaded with iron or aluminum oxides, can also be used. These materials can improve the selective adsorption efficiency for ammonia nitrogen and reduce competitive interference from organic matter. Biochar can also be used. Biochar is made from the carbonization of agricultural waste and has both adsorption and microbial carrier functions, which can assist in the colonization of nitrifying bacteria. In addition, a small amount of weakly acidic cation exchange resin can also be used. This type of material is suitable for the precise removal of low-concentration ammonia nitrogen. The above materials can be flexibly selected and applied according to specific needs.

[0039] During the application of this device, the circulating pump is powered by a conductive slip ring, and the air pump 73 is powered by a plug and socket with wires for plug-in power supply. The socket is installed on the outer wall of the purification box 651. Both the socket and the plug are waterproof and located above the water surface, so they will not come into contact with water and there is no risk of short circuit. This ensures stable power supply when the device is rotating. The above technical solutions are existing technical means, so they will not be described in detail here.

[0040] The main electronic components and related configurations in this technical solution are as follows: The drive motor 4 is a brushless DC motor, model BLDC-60W-24V, with a power range of 60-120W and a rated voltage of 24-48V. A gearbox reducer (reduction ratio 5-20:1) is installed at the motor output to improve torque and regulate speed. An encoder (model E6B2-CWZ6C, resolution 1000-2000P / R) is fixed to the motor shaft end, enabling flexible adjustment of rotation and stepless speed regulation; the water pump 61 is a brushless DC motor. Water pump 61, model DC40F-12V, flow rate 10-30L / min, rated voltage 12-24V; Air pump 73 is a miniature DC air pump 73, model DP-600-24V, air volume 5-15L / min, rated voltage 24V; Conductive slip ring is a cap-type conductive slip ring, model LPT-8-2A, number of channels 8-12, rated current 2-5A; Waterproof socket plug is IP68 rated, model WF-2P-10A, rated current 8-15A, rated voltage 220V;

[0041] The controller uses an STM32 series microcontroller, specifically the STM32F103C8T6, and is installed in a waterproof control box located on the upper outer side of pool body 1. The controller is equipped with a 3.5-5 inch display with a resolution of 480×320. The circuit connection is as follows: an external 220V power supply is connected to a switching power supply (model S-50-12, output 12V / 4A) inside the waterproof control box. The switching power supply provides 12V DC power to the controller. The controller outputs are connected to four drivers (model BLD-24) for the four motors. V-10A), water pump 61 and air pump 73, drive motor 4 driver and drive motor 4 and encoder form a circuit, encoder signal output terminal is connected to controller signal input terminal to feedback speed information, conductive slip ring one end is connected to the power supply line from controller to water pump 61, the other end is directly connected to the power input terminal of water pump 61 to realize stable power supply to water pump 61 when turntable 5 rotates, waterproof socket is fixed on the outer wall of purification box 651, its input terminal is connected to external 220V power supply, and its output terminal is connected to the power input terminal of air pump 73 through waterproof plug;

[0042] During use, according to specific application requirements, a pH sensor (model PH-200, measurement range 0-14pH), an ammonia nitrogen sensor (model NH3-N-300, measurement range 0.1-10mg / L), and a dissolved oxygen sensor (model DO-400, measurement range 0-20mg / L) can be installed in tank 1, and a liquid level sensor (model YwK-01, measurement range 0-50cm) can be installed in purification tank 651. All sensor signal output terminals are connected to the controller signal input terminal for real-time monitoring of water quality and liquid level data, enabling automatic operation of the device or assisted manual operation, sending messages or inputting / selecting skills;

[0043] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

[0044] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. An ammonia nitrogen purification device for recirculating aquaculture systems, characterized in that: The system includes a pool body (1), a waterproof ring (2) is fixedly installed in the middle of the pool body (1), a mounting frame (3) is fixedly installed on the lower inner side of the waterproof ring (2), a drive motor (4) is fixedly installed at the bottom of the mounting frame (3), a turntable (5) is fixedly installed through the mounting frame (3) at the output end of the drive motor (4), a purification mechanism (6) is fixedly installed on the top of the turntable (5), an oxygen supply mechanism (7) is fixedly installed on the top of the purification mechanism (6), and the oxygen supply mechanism (7) is arranged on the outside of the purification mechanism (6). The purification mechanism (6) includes a water pump (61), which is fixedly installed on the top of the turntable (5). A suction pipe (62) is fixedly installed at the input end of the water pump (61), and a delivery pipe (63) is fixedly installed at the output end of the water pump (61). An annular water suction module (64) is fixedly installed at the output end of the suction pipe (62) extending to the outside of the waterproof ring (2). A filter module (65) is fixedly installed at the output end of the delivery pipe (63). The oxygen supply mechanism (7) is fixedly installed on the top of the delivery pipe (63), and the suction pipe (62) is rotatably connected to the outside of the waterproof ring (2).

2. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 1, characterized in that: The annular water-absorbing module (64) includes an annular tube (641), which is rotatably connected to the lower end of the outer surface of the waterproof ring (2). The top of the annular tube (641) is fixedly connected to the outer end of the suction tube (62). The output end of the annular tube (641) is connected to the input end of the suction tube (62). Suction heads (642) are fixedly installed on the outer surface of the annular tube (641) in a ring at equal intervals.

3. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 2, characterized in that: The suction head (642) is threadedly connected to a filter screen (643), which is generally cylindrical.

4. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 1, characterized in that: The filter module (65) includes a purification box (651), which is fixedly installed on the top of the conveying pipe (63). The input end of the purification box (651) is connected to the output end of the conveying pipe (63). A purification core (652) is installed inside the purification box (651). A sealing cover (653) covers the top of the purification box (651). A drain hopper (654) is fixedly installed on the top of the sealing cover (653). Side drain pipes (655) are fixedly installed at equal intervals in a ring at the outer output end of the drain hopper (654).

5. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 4, characterized in that: The bottom of the sealing cover (653) is fixedly installed with a fixing plate (656) arranged in a ring at equal intervals. The upper surface of the purification box (651) is provided with slots (657) arranged in a ring at equal intervals. The fixing plate (656) is inserted into the slot (657). The lower end of the fixing plate (656) is threadedly connected with a mounting screw (658). The end of the mounting screw (658) passes through the fixing plate (656) and the purification box (651) and is threadedly connected.

6. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 5, characterized in that: The side drain pipe (655) is fixedly installed with purified drain pipes (659) arranged linearly at equal intervals on the outer side. The mounting screw (658) is a hand-tight screw. The bottom edge of the sealing cover (653) is provided with a sealing gasket.

7. The ammonia nitrogen purification device for recirculating aquaculture water according to claim 6, characterized in that: The oxygen supply mechanism (7) includes an installation plate (71), which is fixedly installed on the top of the drainage hopper (654). An air pipe (72) is fixedly installed on the top of the installation plate (71). An air pump (73) is fixedly installed on one side of the air pipe (72). The output end of the air pump (73) is connected to the input end of the air pipe (72). An oxygen supply pipe (74) is fixedly installed at equal intervals in a ring at the top output end of the air pipe (72). The lower end of the oxygen supply pipe (74) extends into the water in the pool (1). An oxygen supply main pipe (75) is fixedly installed at the bottom of the oxygen supply pipe (74). An oxygen supply branch pipe (76) is fixedly installed at equal intervals in a ring on the outer side of the oxygen supply main pipe (75).

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