Closed circulating water culture pond

Abstract

The utility model discloses a closed circulating water culture pond which comprises a water storage pond, a partition plate is arranged in the water storage pond, water leakage holes are formed in the partition plate, a water discharging cavity is formed below the partition plate, a filtering cavity is formed in one side of the water storage pond, a filtering device used for purifying water is arranged in the filtering cavity, and the filtering cavity is communicated with the water storage pond through a water adding cavity. A water suction pump is installed on the side face of the filtering cavity and communicated with the filtering cavity and the lower water cavity through pipelines. According to the utility model, a closed circulating system for natural precipitation, multi-stage filtration and purification of water in the culture process is constructed, so that the external discharge of culture water is greatly reduced, the utilization rate of water resources is remarkably improved, the waste of water resources caused by frequent water change is avoided, and meanwhile, the pollution of culture activities to surrounding natural water is effectively reduced; ecological problems such as eutrophication are prevented, and the ecological environment of regional water is protected.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, and in particular to a closed recirculating aquaculture pond. Background Technology

[0002] With the booming development of aquaculture, the drawbacks of traditional open-style aquaculture ponds have become increasingly apparent. In traditional aquaculture models, the water bodies are typically directly connected to the external environment. Pollutants such as uneaten feed, feces, and metabolic waste generated during the aquaculture process are discharged directly into surrounding natural water bodies without effective treatment. Large amounts of organic pollutants and nutrients such as nitrogen and phosphorus enter the water, easily leading to eutrophication, excessive algae growth, and water quality deterioration. This severely disrupts the aquatic ecological balance, threatening the survival of surrounding aquatic organisms and human water safety. Furthermore, open-style aquaculture requires frequent water changes to maintain water quality, resulting in significant water waste. In water-scarce areas, this model further exacerbates water shortages. In addition, traditional aquaculture ponds have rudimentary filtration and purification facilities, making it difficult to effectively remove harmful substances from the water. Unstable water quality affects the quality and yield of aquatic products, hindering the sustainable development of aquaculture.

[0003] Therefore, a new type of environmentally friendly and efficient aquaculture model and facilities are needed. Utility Model Content

[0004] Purpose of the invention: In view of the serious water waste and sewage discharge pollution of surrounding water bodies in the traditional open aquaculture model, this utility model provides a closed recirculating aquaculture pond that can realize the internal self-circulation of water, save water resources and do not pollute the surrounding water bodies.

[0005] Technical solution: To solve the above problems, this utility model adopts a closed recirculating aquaculture pond, including a water storage tank. The water storage tank is equipped with a partition with a water leakage hole. Below the partition is a drainage chamber. A filter chamber is provided on one side of the water storage tank. The filter chamber is equipped with a filtration device for purifying water quality. The filter chamber is connected to the water storage tank through a water filling chamber. A water pump is installed on the side of the filter chamber. The water pump is connected to the filter chamber and the drainage chamber through pipes.

[0006] Furthermore, an extension cavity is provided on one side of the drainage cavity, which is connected to the interior of the drainage cavity, and the water pump is connected to the extension cavity.

[0007] Furthermore, the filtration device includes a filter plate that is snapped onto the inner wall of the filter chamber, the filter plate being located between the water pump outlet and the water filling chamber inlet.

[0008] Furthermore, the filtration device also includes biological filter media and activated carbon placed inside the filtration chamber.

[0009] Furthermore, the filter chamber includes a main chamber plate and a top removable sealing plate.

[0010] Furthermore, a positioning rod is provided on the top of the main cavity plate, and a positioning hole is opened on the sealing plate, with the positioning rod installed in the positioning hole.

[0011] Furthermore, it also includes an L-shaped clamping plate, with a clamping cavity on the outer wall of the main cavity plate, a clamping groove on the sealing plate, a locking opening on the clamping cavity, and a threaded opening on the L-shaped clamping plate. Bolts are installed in the locking opening and the threaded opening to fix the L-shaped clamping plate in the clamping cavity and the clamping groove.

[0012] Furthermore, a motor is installed at the top of the water storage tank, and a lead screw is connected to the output end of the motor. The other end of the lead screw is fixed to the top of the water storage tank by a support plate. A fitting is fitted on the lead screw, and a connecting diagonal rod is fixedly connected to the fitting. A scraper is connected to the bottom of the connecting diagonal rod, and the scraper contacts the upper surface of the partition.

[0013] Beneficial effects: Compared with the prior art, the significant advantages of this utility model are (1) it constructs a closed-loop system for natural sedimentation, multi-stage filtration and purification of water during the aquaculture process, which greatly reduces the external discharge of aquaculture water, significantly improves the water resource utilization rate, avoids water waste caused by frequent water changes, and at the same time effectively reduces the pollution of surrounding natural water bodies by aquaculture activities, prevents ecological problems such as eutrophication, and protects the regional aquatic ecological environment; (2) the filter device in the filter chamber adopts a modular and detachable structure, which makes maintenance and operation simple and quick, effectively shortens the system maintenance time and improves maintenance efficiency; (3) an automatic scraper is set to automatically clean the partition of the water storage tank, realizes automated and normalized cleaning of impurities near the water chamber, prevents the leakage hole from being blocked, ensures that the water circulation channel is unobstructed, and ensures that the water purification and circulation process is stable and continuous. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the closed recirculating aquaculture pond of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the closed recirculating aquaculture pond of this utility model from another perspective;

[0016] Figure 3 This is a top view structural diagram of the closed recirculating aquaculture pond of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of the sealing plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the overall structure of the filter chamber of this utility model;

[0019] Figure 6 This is a schematic diagram of the overall structure of the filter cavity of this utility model from another perspective;

[0020] Figure 7 This is a schematic diagram of the L-shaped card plate and card cavity mating structure of this utility model. Detailed Implementation

[0021] like Figures 1 to 7 As shown, a closed recirculating aquaculture system in this embodiment includes a water storage tank 1. A partition 25 is located near the bottom of the water storage tank 1, with drainage holes 4 on the partition 25. Below the partition is a drainage chamber 3, and an extension chamber 5 is located on one side of the drainage chamber 3, communicating with the interior of the drainage chamber 3. A filter chamber 2 is located on one side of the water storage tank 1, communicating with the water storage tank 1 via a water filling chamber 24. The filter chamber 2 is located above the extension chamber 5, and a water pump 6 is installed on the side of the filter chamber 2, communicating with both the filter chamber 2 and the extension chamber 5 via pipes.

[0022] The filter chamber 2 includes a main chamber plate 7 and a top removable sealing plate 10. A positioning rod 9 is provided on the top of the main chamber plate 7, and a positioning hole 11 is provided on the sealing plate 10. When the sealing plate 10 is installed on the top of the main chamber plate 7, the positioning rod 9 is located within the positioning hole 11 to fix the installation position of the sealing plate 10. A retaining cavity 13 is provided on the outer wall of the main chamber plate 7, and a retaining groove 12 is provided on the sealing plate 10. A locking opening 23 is provided on the retaining cavity 13, and a threaded opening 15 is provided on the L-shaped retaining plate 14. Bolts 16 are installed in the locking opening 23 and the threaded opening 15 to fix the L-shaped retaining plate 14 within the retaining cavity 13 and the retaining groove 12, thus fixing the sealing plate 10 to the top of the main chamber plate 7. When maintenance is required inside the filter chamber 2, the bolts 16 are loosened, the L-shaped retaining plate 14 is removed, and the sealing plate 10 is removed.

[0023] The filter chamber 2 is equipped with a filtration device for purifying water. This device includes a filter plate 8 that is snapped onto the inner wall of the filter chamber 2, and filter materials such as biological filter media and activated carbon placed within the chamber. These materials remove suspended solids, organic matter, ammonia nitrogen, and other harmful substances from the water. Microbial flora can also be added to the chamber to biodegrade organic pollutants, achieving deep water purification and maintaining the ecological balance of the water body. The filter plate 8 is located between the outlet of the water pump 6 and the inlet of the water filling chamber 24, ensuring that all water pumped by the water pump 6 is filtered before being discharged into the storage tank 1.

[0024] A motor 19 is installed at the top of the water storage tank 1. The output end of the motor 19 is connected to a lead screw 20. The other end of the lead screw 20 is fixed to the top of the water storage tank 1 via a support plate 18. A fitting 21 is fitted onto the lead screw 20, and a connecting inclined rod 22 is fixedly connected to the fitting 21. A scraper 17 is connected to the bottom of the connecting inclined rod 22, and the scraper 17 contacts the upper surface of the partition 25. The motor 19 drives the fitting 21 to reciprocate on the lead screw 20, thereby driving the scraper 17 to clean the upper surface of the partition 25. This prevents the accumulation of impurities in the water storage tank 1 from clogging the drain hole 4 and affecting the water circulation efficiency. This cleaning device can be set according to factors such as stocking density and feeding frequency to achieve automated and routine cleaning, ensuring that the drain hole 4 remains unobstructed and maintaining the efficient operation of the entire recirculating aquaculture system.

[0025] The working principle of this utility model is as follows: A water storage tank 1 is used for aquaculture. Aquaculture water is poured into the water storage tank 1, with the water level not exceeding the height of the water filling chamber 24. During the aquaculture process, due to gravity, denser solid impurities, uneaten feed, and feces gradually sink to the lower water chamber 3, where large particulate pollutants are initially separated using the principle of natural sedimentation, reducing the pressure on subsequent filtration. Subsequently, the water in the lower water chamber 3 flows into the lower water chamber 3 through the leakage holes 4 equipped with a filter screen structure for initial interception. After flowing into the lower water chamber 3 and the extension chamber 5, the water is pumped into the interior of the filter chamber 2 by a water pump 6, where it is filtered and purified. The purified water flows back to the water storage tank 1 through multiple water filling chambers 24 on the front surface of the filter chamber 2, ensuring stable water levels and good water quality in the aquaculture area. As aquaculture activities continue, the water in the water storage tank 1 continuously undergoes sedimentation, filtration, purification, and recirculation processes, forming a closed-loop system. This achieves efficient water resource utilization, reduces waste and environmental pollution, and achieves the goal of environmentally friendly aquaculture.

Claims

1. A closed recirculating aquaculture system, comprising a water storage tank (1), characterized in that, The water storage tank (1) is equipped with a partition (25) with a water leakage hole (4) on the partition (25). The bottom of the partition is a drain chamber (3). A filter chamber (2) is provided on one side of the water storage tank (1). A filter device for purifying water quality is provided in the filter chamber (2). The filter chamber (2) is connected to the water storage tank (1) through a water filling chamber (24). A water pump (6) is installed on the side of the filter chamber (2). The water pump (6) is connected to the filter chamber (2) and the drain chamber (3) through pipes.

2. The closed recirculating aquaculture pond as described in claim 1, characterized in that, An extension cavity (5) is provided on one side of the drain cavity (3), and the extension cavity (5) is connected to the interior of the drain cavity (3). The water pump (6) is connected to the extension cavity (5).

3. The closed recirculating aquaculture pond as described in claim 1, characterized in that, The filtration device includes a filter plate (8) that is snapped onto the inner wall of the filter chamber (2), and the filter plate (8) is located between the outlet of the water pump (6) and the inlet of the water filling chamber (24).

4. The closed recirculating aquaculture pond as described in claim 3, characterized in that, The filtration device also includes biological filter material and activated carbon placed in the filter chamber (2).

5. The closed recirculating aquaculture pond as described in claim 1, characterized in that, The filter chamber (2) includes a main chamber plate (7) and a top removable sealing plate (10).

6. The closed recirculating aquaculture pond as described in claim 5, characterized in that, The main cavity plate (7) is provided with a positioning rod (9) at the top, and the sealing plate (10) has a positioning hole (11) and the positioning rod (9) is installed in the positioning hole (11).

7. The closed recirculating aquaculture pond as described in claim 5, characterized in that, It also includes an L-shaped card plate (14), a card cavity (13) is provided on the outer side wall of the main cavity plate (7), a card groove (12) is provided on the sealing plate (10), a locking port (23) is opened on the card cavity (13), a threaded port (15) is opened on the L-shaped card plate (14), and a bolt (16) is installed in the locking port (23) and the threaded port (15) to fix the L-shaped card plate (14) in the card cavity (13) and the card groove (12).

8. The closed recirculating aquaculture pond as described in claim 1, characterized in that, The top of the water storage tank (1) is equipped with a motor (19), the output end of the motor (19) is connected to a lead screw (20), the other end of the lead screw (20) is fixed to the top of the water storage tank (1) by a support plate (18), a kit (21) is fitted on the lead screw (20), a connecting rod (22) is fixedly connected to the kit (21), a scraper (17) is connected to the bottom of the connecting rod (22), and the scraper (17) is in contact with the upper surface of the partition (25).

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