Factory recirculating aquaculture system

Abstract

The utility model discloses a factory-like circulating water culture system which comprises a plurality of clean water tanks, a plurality of culture ponds, a plurality of filtering mechanisms, a plurality of biological filters, a plurality of Roots blowers and a plurality of ultraviolet sterilizers, and an inlet of each clean water tank is communicated with a water source; an inlet of the culture pond is communicated with an outlet of the clean water pond through a water supply pipe; the water supply pipe is provided with a water pump and an oxygen generator; the filtering mechanisms are in one-to-one correspondence with the culture ponds and are arranged in the corresponding culture ponds, inlets of the filtering mechanisms are communicated with the corresponding culture ponds, and outlets of the filtering mechanisms are communicated with water return pipes; the inlet of each biological filter is at least communicated with a water return pipe, and the outlet of each biological filter is at least communicated with a clean water tank; an air outlet of the Roots blower is at least communicated with one biological filter; and the ultraviolet sterilizers are in one-to-one correspondence with the biological filters and are arranged at outlets of the corresponding biological filters. The system can solve the problems of high energy consumption, low water utilization rate and high culture cost of the existing factory-like circulating water culture system.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a factory-style recirculating aquaculture system. Background Technology

[0002] Recirculating aquaculture systems (RAS) are a modern aquaculture method that combines aquaculture with water treatment technology. It uses a recirculating water system to raise aquatic organisms, such as fish, shrimp, and shellfish, in a closed or semi-closed environment. This aquaculture model helps improve efficiency, reduce environmental pollution, and is more water-efficient and environmentally friendly.

[0003] The advantages of factory-scale recirculating aquaculture are mainly reflected in the following aspects: (1) Compared with traditional aquaculture methods, factory-scale recirculating aquaculture can significantly reduce water usage because water is recycled in the system, and only a small amount of water needs to be replaced or replenished; (2) Through water quality control and waste treatment, factory-scale recirculating aquaculture reduces pollution to external waters during the aquaculture process and will not directly discharge pollutants into natural waters; (3) This aquaculture method usually adopts high-density aquaculture, which can carry out large-scale aquaculture in a small space and improve the production capacity per unit area; (4) By artificially controlling water quality and environmental factors, a stable living environment can be provided for aquatic organisms, reducing the occurrence of diseases and increasing the success rate and yield of aquaculture; (5) Since the water is recycled and filtered and treated multiple times, the chance of pathogen transmission is less, thus reducing the occurrence of diseases during the aquaculture process.

[0004] Existing factory-style recirculating aquaculture systems generally have high energy consumption and low water utilization, resulting in high breeding costs and making them unsuitable for long-term breeding. Utility Model Content

[0005] The purpose of this invention is to provide a factory-scale recirculating aquaculture system that can solve the problems of high energy consumption, low water utilization rate, and high breeding costs of existing factory-scale recirculating aquaculture systems.

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

[0007] A factory-scale recirculating aquaculture system includes multiple clear water tanks, each with an inlet connected to a water source; multiple aquaculture tanks, each with an inlet connected to an outlet of the clear water tank via a water supply pipe, the water supply pipe being equipped with a water pump and an oxygenator; multiple filtration mechanisms, each corresponding to one of the aquaculture tanks and located within that tank, each filtration mechanism having an inlet connected to its corresponding aquaculture tank and an outlet connected to a return water pipe; multiple biological filters, each biological filter having an inlet connected to at least one of the return water pipes and an outlet connected to at least one of the clear water tanks; multiple Roots blowers, each Roots blower having an outlet connected to at least one of the biological filters; and multiple ultraviolet sterilizers, each corresponding to one of the biological filters and located at the outlet of its corresponding biological filter.

[0008] Optionally, the filtration mechanism includes a sludge collection tank and an overflow tank; the top of the sludge collection tank is provided with a filter plate, and the filter plate is connected to the bottom of the corresponding aquaculture tank; the bottom of the sludge collection tank is connected to a drain pipe, the drain pipe is provided with a drain valve, and a circulation pipe is connected to the portion of the drain pipe located between the sludge collection tank and the drain valve; the overflow tank is flush with the top edge of the corresponding sludge collection tank, the circulation pipe is connected to the corresponding overflow tank, and the overflow tank is connected to the corresponding return water pipe.

[0009] Optionally, the sludge collection tank is vertically provided with multiple screen plates, the edges of which are sealed to the inner wall of the sludge collection tank to divide the sludge collection tank into multiple screen chambers, and the corresponding sewage pipe is connected to any one of the screen chambers.

[0010] Optionally, the filter plate has a central hole in the middle, and a filter tube is vertically arranged in the middle of the filter plate. The top end of the filter tube is closed, and the bottom end is connected to the central hole. The side wall of the filter tube has an array of filter holes. The length of the filter tube matches the height of the corresponding aquaculture pond.

[0011] Optionally, the aquaculture pond is a vertically arranged cylindrical shape; the end of the water supply pipe away from the clear water pool is inserted into the aquaculture pond from top to bottom and is located close to the bottom of the aquaculture pond.

[0012] Optionally, the end of the water supply pipe away from the clear water pool is inserted at an angle of 25° along the inner wall of the aquaculture pool.

[0013] Optionally, the inner bottom surface of the aquaculture pond is a conical surface, and the filter tube is coaxially arranged with the inner bottom surface of the aquaculture pond.

[0014] Optionally, the clear water tank is connected to a water source via cold water pipes and hot water pipes, and the hot water pipes are equipped with air-source heat pumps.

[0015] Optionally, the biological filter is divided into multiple individual tanks, and adjacent individual tanks are connected by a filter screen; each individual tank is connected to at least one return water pipe; any individual tank is connected to the corresponding clear water tank through a circulation pump.

[0016] Optionally, the return water pipe is equipped with a microfilter.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] This utility model provides a factory-scale recirculating aquaculture system. It includes a clear water tank connected to a water source to supply the circulating water and replenish water consumed during the circulation process; aquaculture ponds for aquaculture, equipped with pumps and oxygenators to pump water while simultaneously supplying oxygen, forming a water-oxygen mixture and improving oxygen utilization; a filtration system to continuously filter the water in the ponds, retaining impurities and waste to ensure the purity of the returned water and prevent solid impurities from entering the returned water during later treatment; a biological filter for biological treatment and sedimentation of the returned water, effectively purifying it; and a Roots blower and ultraviolet sterilizer for aeration and sterilization, making the purified water oxygen-rich and sterile for recirculation back into the clear water tank. Through the synergy of these features, this factory-scale recirculating aquaculture system effectively solves the problems of high energy consumption, low water utilization, and high aquaculture costs associated with existing factory-scale recirculating aquaculture systems. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of the sludge collection tank of the factory-scale recirculating aquaculture system provided in this embodiment of the utility model;

[0021] Figure 2 and Figure 3 A schematic diagram of the aquaculture pond of the factory-scale recirculating aquaculture system provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the sludge collection tank of the factory-scale recirculating aquaculture system provided in this embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the filter plate of the factory-scale recirculating aquaculture system provided in an embodiment of this utility model.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 10-Clear water tank; 11-Water supply pipe; 111-Water pump; 112-Oxygen generator; 20-Aquaculture pond; 30-Return water pipe; 31-Sludge collection tank; 311-Sieve cavity; 32-Overflow tank; 33-Filter plate; 34-Sludge discharge pipe; 35-Sludge discharge valve; 36-Circulation pipe; 37-Sieve plate; 38-Filter tube; 40-Biological filter; 50-Roots blower. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0027] Example

[0028] Please refer to Figures 1 to 5 This embodiment provides a factory-scale recirculating aquaculture system, including multiple clear water tanks 10, each with an inlet connected to a water source; secondly, multiple aquaculture ponds 20, each with an inlet connected to an outlet of the clear water tank 10 via a water supply pipe 11, the water supply pipe 11 being equipped with a water pump 111 and an oxygenator 112; thirdly, multiple filtration mechanisms, each corresponding to one of the aquaculture ponds 20 and located in the corresponding aquaculture pond 20, with the inlet of each filtration mechanism connected to the corresponding aquaculture pond 20. The system includes: 1) a 0-way connection, with a return water pipe 30 connected to the outlet; 2) multiple biological filters 40, each of which has an inlet connected to at least one of the return water pipes 30 and an outlet connected to at least one of the clear water tanks 10; 3) multiple Roots blowers 50, each with an outlet connected to at least one of the biological filters 40; and 4) multiple ultraviolet sterilizers, each corresponding to one of the biological filters 40 and located at the outlet of the corresponding biological filter 40.

[0029] The factory-scale recirculating aquaculture system provided in this embodiment includes a clear water tank 10 connected to a water source to supply circulating water and replenish water consumed during the circulation process; an aquaculture pond 20 for aquaculture; and a water pump 111 and an oxygenator 112 that pump water while simultaneously supplying oxygen to form a water-oxygen mixture, thereby improving oxygen utilization. A filtration mechanism continuously filters the water in the aquaculture pond 20, retaining impurities and waste within the filtration system to ensure the purity of the discharged return water and prevent contamination. The system eliminates the need for post-treatment when the returned water contains solid impurities. By setting up a biological filter 40, the returned water undergoes biological treatment and sedimentation, effectively purifying it. Simultaneously, by installing a Roots blower 50 and an ultraviolet sterilizer, the purified water is aerated and sterilized, making it oxygen-rich and sterile, so that it can be recirculated into the clear water tank 10 as circulating water. Through the synergy of the above features, this factory-style recirculating aquaculture system can effectively solve the problems of high energy consumption, low water utilization, and high breeding costs of existing factory-style recirculating aquaculture systems.

[0030] To further explain the specific structure of the filtration mechanism, the filtration mechanism includes a sludge collection tank 31 and an overflow tank 32; the top of the sludge collection tank 31 is provided with a filter plate 33, and the filter plate 33 is connected to the bottom of the corresponding aquaculture tank 20; the bottom of the sludge collection tank 31 is connected to a drain pipe 34, the drain pipe 34 is provided with a drain valve 35, and the portion of the drain pipe 34 located between the sludge collection tank 31 and the drain valve 35 is connected to a circulation pipe 36; the overflow tank 32 is flush with the top edge of the corresponding sludge collection tank 31, the circulation pipe 36 is connected to the corresponding overflow tank 32, and the overflow tank 32 is connected to the corresponding return water pipe 30.

[0031] With the above setup, the water in the clear water tank 10 is fed into the aquaculture tank 20 through the water supply pipe 11, and then flows into the sludge collection tank 31 through the filter holes on the filter plate 33. During the process, the water is filtered by the filter plate 33, and then flows out through the sewage pipe 34. When the sewage valve 35 is closed, the outflowing water flows into the overflow tank 32 through the circulation pipe 36, and then flows back to the biological filter tank 40 through the return water pipe 30. When the water level in the aquaculture tank 20 reaches its highest point, the water in it will also overflow into the overflow tank 32, and then flow back to the biological filter tank 40 through the return water pipe 30. When the sludge collection tank 31 needs to be cleaned regularly, the sewage valve 35 is opened, and the sewage can be discharged along the sewage pipe 34 (because the overflow tank 32 is set at a higher height, there must be a height difference between the two ends of the circulation pipe 36, so the water will preferentially flow out from the sewage pipe 34).

[0032] To further improve the filtration effect of the sludge collection tank 31, multiple screen plates 37 are vertically arranged inside the sludge collection tank 31. The edges of the screen plates 37 are sealed to the inner wall of the sludge collection tank 31 to divide the sludge collection tank 31 into multiple screen chambers 311. The corresponding sewage pipe 34 is connected to any one of the screen chambers 311.

[0033] With the above setup, the water that flows into the sludge collection tank 31 after being initially filtered by the filter plate 33 will be filtered again by the screen plate 37, thereby further improving the filtration effect.

[0034] To further improve the filtration effect, the filter plate 33 has a central hole in the middle, and a filter tube 38 is vertically arranged in the middle of the filter plate 33. The top end of the filter tube 38 is closed, and the bottom end is connected to the central hole. The side wall of the filter tube 38 has an array of filter holes. The length of the filter tube 38 matches the height of the corresponding aquaculture pond 20.

[0035] With the above settings, the water in the aquaculture pond 20 does not need to flow to the bottom of the aquaculture pond 20 to enter the sludge collection pond 31. Instead, it can enter the filter pipe 38 through the filter hole array on the filter pipe 38 and then flow into the sludge collection pond 31 through the filter pipe 38, thereby ensuring filtration efficiency.

[0036] To further improve the filtration efficiency of the water, the aquaculture pond 20 is a vertically arranged cylindrical shape; the end of the water supply pipe 11 away from the clear water pool 10 is inserted into the aquaculture pond 20 from top to bottom and is located close to the bottom of the aquaculture pond 20.

[0037] The above settings allow the water to circulate within the aquaculture pond 20, thereby improving the filtration effect.

[0038] To further improve the filtration effect, the end of the water supply pipe 11 away from the clear water pool 10 is inserted at an angle of 25° along the inner wall of the breeding pool 20.

[0039] The above setup creates a swirling flow of water introduced through the water supply pipe 11 within the aquaculture pond 20, thereby further enhancing the filtration effect.

[0040] To further optimize the water flow direction, the inner bottom surface of the aquaculture pond 20 is a conical surface, and the filter pipe 38 is coaxially arranged with the inner bottom surface of the aquaculture pond 20.

[0041] In order to regulate the temperature of the water source flowing into the clear water tank 10 to adapt to the temperature required by the aquatic products in the breeding pond 20, the clear water tank 10 is connected to the water source through cold water pipes and hot water pipes, and the hot water pipes are equipped with air source heat pumps.

[0042] To improve the purification efficiency of the biological filter 40, the biological filter 40 is divided into multiple individual tanks, and adjacent individual tanks are connected by a filter screen; each individual tank is connected to at least one return water pipe 30; any individual tank is connected to the corresponding clear water tank 10 through a circulation pump.

[0043] In order to pre-treat the return water flowing into the biological filter 40, the return water pipe 30 is equipped with a microfilter.

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A factory-like recirculating aquaculture system, characterized in that, include: Multiple clear water pools (10), each of which has an inlet connected to a water source; Multiple breeding ponds (20), the inlet of the breeding pond (20) is connected to the outlet of the clear water pond (10) through a water supply pipe (11), and the water supply pipe (11) is equipped with a water pump (111) and an oxygen generator (112); Multiple filtration mechanisms are provided, each corresponding to a breeding pond (20) and located in the corresponding breeding pond (20). The inlet of each filtration mechanism is connected to the corresponding breeding pond (20), and the outlet is connected to a return water pipe (30). Multiple biological filters (40), each of which has an inlet connected to at least one of the return water pipes (30) and an outlet connected to at least one of the clear water tanks (10); Multiple Roots blowers (50), the outlet of each Roots blower (50) being connected to at least one of the biological filters (40); Multiple ultraviolet sterilizers are provided, each corresponding to one of the biological filters (40), and are located at the outlet of the corresponding biological filter (40).

2. The factory cycling aquaculture system according to claim 1, characterized in that, The filtration mechanism includes a sludge collection tank (31) and an overflow tank (32); The top of the sludge collection tank (31) is provided with a filter plate (33), and the filter plate (33) is connected to the bottom of the corresponding breeding tank (20). The bottom of the sludge collection tank (31) is connected to a sewage pipe (34), and the sewage pipe (34) is provided with a sewage valve (35). The part of the sewage pipe (34) located between the sludge collection tank (31) and the sewage valve (35) is connected to a circulation pipe (36). The overflow pool (32) is flush with the top edge of the corresponding sludge collection pool (31), the circulation pipe (36) is connected to the corresponding overflow pool (32), and the overflow pool (32) is connected to the corresponding return water pipe (30).

3. The factory cycling aquaculture system according to claim 2, wherein, The sludge collection tank (31) is vertically provided with multiple screen plates (37). The edges of the screen plates (37) are sealed to the inner wall of the sludge collection tank (31) to divide the sludge collection tank (31) into multiple screen chambers (311). The corresponding sewage pipe (34) is connected to any one of the screen chambers (311).

4. The factory-style recirculating aquaculture system according to claim 3, characterized in that, The filter plate (33) has a central hole in the middle, and a filter tube (38) is vertically arranged in the middle of the filter plate (33). The top end of the filter tube (38) is closed, and the bottom end is connected to the central hole. The side wall of the filter tube (38) has an array of filter holes. The length of the filter tube (38) is matched with the height of the corresponding aquaculture pond (20).

5. The factory cycling aquaculture system according to claim 4, wherein, The aquaculture pond (20) is a vertically arranged cylindrical shape; The end of the water supply pipe (11) away from the clear water pool (10) is inserted into the breeding pool (20) from top to bottom and is set close to the bottom of the breeding pool (20).

6. The factory-like recirculating aquaculture system of claim 5, wherein, The water supply pipe (11) is inserted at an angle of 25° along the inner wall of the aquaculture pond (20) at one end away from the clear water pool (10).

7. The factory-like recirculating aquaculture system of claim 6, wherein, The inner bottom surface of the aquaculture pond (20) is a conical surface, and the filter tube (38) is coaxially arranged with the inner bottom surface of the aquaculture pond (20).

8. The factory-like recirculating aquaculture system of claim 1, wherein, The clear water tank (10) is connected to the water source through cold water pipe and hot water pipe respectively, and the hot water pipe is equipped with an air source heat pump.

9. The factory-like recirculating aquaculture system of claim 1, wherein, The biological filter (40) is divided into multiple individual tanks, and adjacent individual tanks are connected by filter screens; Each of the aforementioned individual pools is connected to at least one of the aforementioned return water pipes (30); Each of the single pools is connected to the corresponding clear water pool (10) via a circulation pump.

10. The factory cycling aquaculture system according to claim 9, characterized in that, The return water pipe (30) is equipped with a microfilter.

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