A double-circulation sewage discharge ecological breeding system

By optimizing the water flow circulation method and using the flow pushing device and circulator, the dead zone problem of square circulation pools is solved, efficient water flow circulation and low-energy consumption aquaculture system are realized, and operating costs are reduced.

CN119817519BActive Publication Date: 2025-08-19HANGZHOU QINLIN ECOLOGICAL TECH CO LTD
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Patent Information

Application Number
CN202510290210.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-08-19
Estimated Expiration
2045-03-12

AI Technical Summary

Technical Problem

The existing square circulating aquaculture ponds are prone to dead zones in corner areas, resulting in feces accumulation, affecting water quality and aquaculture environment. The existing design requires multiple pushing devices to promote water flow circulation, increasing system operation costs and energy consumption.

Method used

The dual circulation sewage discharge ecological aquaculture system is adopted to optimize the water flow circulation method and use the flow pushing device and circulator to achieve efficient water flow circulation, reduce dead zones, reduce energy consumption and maintenance costs.

Benefits of technology

It improves the efficiency of water flow circulation, reduces dead zones, reduces system energy consumption and operating costs, and provides a more economical and environmentally friendly breeding solution.

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Abstract

The present invention relates to the field of breeding equipment, and in particular to a dual-circulation sewage discharge ecological breeding system, the structure of which includes: a shell is provided with two guide bins stacked up and down and matched with rotating blades, the guide bins introduce water flow through a main push port installed on the surface of the shell, and discharge water flow through a side flow groove on the surface of the shell, a driver drives the rotating blades to rotate forward and reverse inside the guide bin, and the improved system uses a flow-pushing device to spray flow, so that the water flow inside the breeding area hits the circulator to circulate the water flow to both sides. The driver drives the first rotating shaft at the bottom and the first rotating shaft to rotate forward and reverse through a gear set, which not only makes the structure more compact, but also can make the rotating blades rotate at a consistent speed, and is more balanced when inhaling water flow, so that the water flow can be mixed with the water flow flowing through the guide wall surface when it flows out of the side flow groove, thereby improving the flow efficiency of the diverted water body.
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Description

Technical Field

[0001] The invention relates to a double-circulation sewage discharge ecological breeding system, belonging to the field of breeding equipment. Background Art

[0002] A recirculating aquaculture tank is a closed or semi-closed system that achieves efficient and sustainable biological aquaculture by recycling water resources and aquaculture waste. It is suitable for the cultivation of aquatic organisms such as fish and shellfish.

[0003] There are two main types of aquaculture tanks: circular and square. Square tanks offer significant advantages over circular tanks: their compact design allows for greater space utilization, with tighter spacing between tanks. Furthermore, square tanks are more convenient for subsequent renovation and expansion, as they can be easily adapted from the original design. However, circular tanks are more complex to expand.

[0004] However, square aquaculture ponds present some practical challenges. This is primarily due to the formation of dead zones in the corners, where feces from the organisms accumulate, impacting water quality and the aquaculture environment. To address this issue, existing designs typically incorporate multiple flow-inducing devices to promote water circulation within the pond and alleviate the dead zone problem.

[0005] To address these issues, this design proposes a dual-circulation, sewage-discharge ecological aquaculture system. By optimizing water circulation, this system achieves efficient flow and effectively reduces operating costs. This innovative design not only addresses the shortcomings of traditional square aquaculture ponds in water circulation and sewage discharge efficiency, but also reduces overall system energy consumption and maintenance costs through rational design, providing a more economical and environmentally friendly solution for recirculating aquaculture. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a double-circulation sewage discharge ecological aquaculture system to solve the above problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dual-circulation sewage discharge ecological aquaculture system, the structure of which includes: a tank body, the tank body is divided into a filtration area and a breeding area, a flow-pushing device is installed in the middle of the filtration area, a collection bucket is installed inside the breeding area, sedimentation buckets are installed on both sides of the filtration area, and a circulator is installed inside the breeding area, the circulator is opposite to the pump body outlet in the middle of the tank body;

[0008] The circulator includes a guide shell, a driver is installed on the top of the guide shell, and the driver drives the rotating blades installed inside the guide shell;

[0009] The shell is provided with two guide bins stacked up and down to cooperate with the rotating blades. The guide bins introduce water flow through a main push port installed on the surface of the shell and discharge water flow through a side flow groove on the surface of the shell. The driver drives the rotating blades to rotate forward and reverse inside the guide bins.

[0010] Preferably, the flow-pushing device includes a pump body, a flow-pushing shaft is installed in the middle of the stirring box of the pump body, an inlet is opened on the top of the stirring box, the inlet is connected to the filter zone partition, a guide pipe is installed in the middle of the flow-pushing shaft, and the nozzle is connected through the guide pipe.

[0011] Preferably, auxiliary ducts and suction transverse pipes are installed on both sides of the guide pipe. The auxiliary ducts are installed on the sides of the guide pipe and are provided with connecting ports. The suction transverse pipes are connected to the auxiliary ducts and installed on the side of the breeding area close to the filtration area.

[0012] Preferably, a strip-shaped through hole is installed at the bottom of the suction transverse pipe.

[0013] Preferably, a guide groove is installed on the top of the shell. The shell is triangular, and a spike end is formed between the guide surface for diversion. Guide walls and main push ports are installed on both side surfaces near the spike part, and a side flow groove is installed on the side away from the spike part and in contact with the inner wall of the breeding area.

[0014] Preferably, the driver includes a motor, which is mounted on the surface of the support seat. A second drive wheel and a first drive wheel are mounted inside the support seat, and the first drive wheel and the second drive wheel are connected to the first rotating shaft and the second rotating shaft respectively.

[0015] Preferably, the first rotating shaft and the second rotating shaft are nested and matched, and a bearing is installed inside the second rotating shaft to support the rotation of the first rotating shaft.

[0016] Preferably, the opening of the nozzle is a multi-groove structure.

[0017] Preferably, the main push opening is symmetrically arranged on the surface of the shell with respect to the guide wall, and the main push opening is staggeredly placed on both sides of the inclined surface.

[0018] Preferably, the connection between the first rotating shaft and the second rotating shaft is located inside the rotating blade.

[0019] The present invention provides a dual-circulation sewage discharge ecological breeding system with the following effects: the improved system uses a flow-pushing device to spray, so that the water flow inside the breeding area hits the circulator to circulate the water to both sides, and the driver drives the first rotating shaft at the bottom and the first rotating shaft to rotate forward and reverse through the gear set. Not only is the structure more compact, but the speed of the rotating blades can be consistent, and it is more balanced when inhaling water flow, so that the water flow can be mixed with the water flow flowing through the guide wall surface when it flows out of the side flow trough, thereby improving the flow efficiency of the diverted water body.

[0020] In order to reduce the dead zone of water flow, the filtered water introduced into the inlet is pushed by a pump at the wall shared by the breeding area and the filtration area, thereby circulating internally, and the suction is generated by the guide pipe and the auxiliary duct so that the suction cross pipe draws the water flow from the shared wall for rapid circulation, so that the internal water flow is faster during circulation, and can drive the sediment to flow quickly through the sedimentation barrel for recovery, thereby avoiding causing the water inside the breeding area to be too dirty. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a structural schematic diagram of a double-circulation sewage discharge ecological aquaculture system of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the circulator of the present invention.

[0024] Figure 3 It is a schematic cross-sectional structural diagram of the guide shell of the present invention.

[0025] Figure 4 Schematic diagram of the structure of the flow-pushing device of the present invention.

[0026] Figure 5 Schematic diagram of the structure of the driver of the present invention.

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the present invention.

[0028] Figure 7 Schematic diagram of the water cycle of the present invention.

[0029] In the picture:

[0030] 1. Tank body; 2. Flow-pushing device; 3. Filtration area; 4. Sedimentation tank; 5. Collection tank; 6. Circulator; 7. Breeding area;

[0031] 21. Pump body; 22. Flow-pushing shaft; 23. Inlet; 24. Flow guide pipe; 25. Auxiliary duct; 26. Suction cross pipe; 27. Spray outlet;

[0032] 61. Guide housing; 62. Driver; 63. Rotating blades;

[0033] 611, housing; 612, guide groove; 613, side flow groove; 614, guide chamber; 615, guide wall; 616, main push port;

[0034] 621. Motor; 622. Support base; 623. First rotating shaft; 624. Second rotating shaft; 625. First driving wheel; 626. Second driving wheel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0037] Existing square aquaculture ponds also present some practical problems. This is primarily due to the formation of dead zones in the corners, which can lead to the accumulation of feces from the organisms within the pond, affecting water quality and the aquaculture environment. To address this issue, existing designs typically require the use of multiple flow-propelling devices to promote water circulation within the pond, thereby alleviating the dead zone problem. Therefore, to address these issues, this project proposes the following technical solutions:

[0038] See also Figures 1 to 6The present invention provides a technical solution for a dual-circulation sewage discharge ecological aquaculture system: its structure includes: a pool body 1, which is divided into a filtration area 3 and a breeding area 7. A flow-pushing device 2 is installed in the middle of the filtration area 3, a collection bucket 5 is installed inside the breeding area 7, sedimentation buckets 4 are installed on both sides of the filtration area 3, and a circulator 6 is installed inside the breeding area 7. The circulator 6 is opposite to the outlet of the pump body 21 in the middle of the pool body 1;

[0039] The circulator 6 includes a guide shell 61 , a driver 62 is mounted on the top of the housing 611 of the guide shell 61 , and the driver 62 drives the rotating blades 63 mounted inside the guide shell 61 ;

[0040] The shell 611 is provided with two guide chambers 614 stacked up and down to cooperate with the rotating blades 63. The guide chamber 614 introduces water flow through the main push port 616 installed on the surface of the shell 611, and discharges water flow through the side flow groove 613 on the surface of the shell 611. The driver 62 drives the rotating blades 63 to rotate forward and reverse inside the guide chamber 614.

[0041] When in use, the main structure of the device includes a pool body 1, and the interior of the pool body 1 is divided into a filtration area 3 and a breeding area 7. The breeding area 7 is used for breeding, and the filtration area 3 is used for water circulation. Specifically, water is put into the breeding area 7, and the water flows through the collection bucket 5 to collect surface floating objects. After collection, it enters the sedimentation bucket 4 for separation. The separated water flows into the filtration area 3 for multi-layer sedimentation. As shown in the pool body 1, it is symmetrically drained through the filtration area 3 to the interior of the warehouse of the flow-pushing device 2 in the middle, and then pushed to the middle through the flow-pushing device 2 so that it passes through the inner wall of the breeding area 7 to circulate to both sides and then enters the interior of the collecting bucket 5 for secondary circulation.

[0042] However, since the impact of the water flow will cause serious attenuation of the impact force when it hits the inner wall of the breeding area 7, the efficiency of water circulation will be reduced, resulting in dead zones and further water pollution caused by the feces of the aquatic products. For this reason, the present device is optimized, and a circulator 6 is set on the inner wall of the breeding area 7 opposite to the flow-pushing device 2 for assistance. The circulator 6 diverts the impacting water flow and circulates rapidly to both sides. However, since the thrust is still attenuated, the ecological breeding system installs a power device inside the circulator 6, and increases the power of water circulation by inserting an electric pump. In addition, by utilizing the flushing power of the water flow, the load of the power mechanism can be reduced, and the energy consumption can be reduced while improving the circulation effect.

[0043] In this embodiment, the structure of the circulator 6 includes a driver 62 for driving the driver 62 to rotate and push the flow, a guide shell 61 for diverting the flow, and the guide shell 61 includes a shell 611. A guide groove 612 is provided on the top of the shell 611. The guide groove 612 is used to prevent overflow from causing damage to the driver 62 and damage to the internal gears.

[0044] The guide groove 612 forms a groove on the top of the shell 611, and a pipe drainage is set on one side of the groove. The interior of the shell 611 is provided with two upper and lower guide chambers 614. The guide chamber 614 uses the main push port 616 as an inlet. When the water flows through the guide wall (615), part of the water flow is sucked into the corresponding guide chamber (614) from the main push port (616) and discharged from the side flow groove (613) on the opposite side. Part of the water flow that rushes over passes through the surface of the guide wall (615) and mixes with the water flow sprayed from the side flow groove (613) in the same direction. Since the directions of the water flows on both sides are inconsistent, the internal rotating blades 63 need to adopt different rotation directions, and in order for the upper and lower rotating blades 63 to be in the same position, the water flows on both sides can be kept balanced when gushing out. When driving, this device is realized by the structure of the driver 62. The specific structure of the driver 62 includes a motor 621. The motor 621 is driven by electric energy and can be used as a DC motor or an AC motor. The motor 621 is installed On the surface of the support seat 622, a first driving wheel 625 and a second driving wheel 626 are set between the support seats 622. The main shaft of the motor 621 is connected to the shaft of the first rotating shaft 623, and a gear is set at the top of the shaft of the first rotating shaft 623 to mesh with the first driving wheel 625. The first driving wheel 625 is connected to the second driving wheel 626 so that the second driving wheel 626 drives the gear at the top of the second rotating shaft 624 to rotate. When the second rotating shaft 624 rotates, it drives the top driver 62 to drive. When the first rotating shaft 623 rotates forward, the power is converted into reverse rotation when passing through the gear of the first driving wheel 625, and then converted back to forward rotation through the second driving wheel 626. Finally, the second driving wheel 626 meshes with the gear at the top of the second rotating shaft 624 to rotate the second rotating shaft 624 in the reverse direction. Then, the connection between the first rotating shaft 623 and the second rotating shaft 624 is set inside the driver 62 to prevent the connection from being entangled with floating objects during rotation.

[0045] The flow-pushing device 2 in this system is used for pushing flow, and the circulating filtered water flow is pumped out into the breeding area 7 through the pump body 21 of the flow-pushing device 2. Specifically, a flow-pushing shaft 22 is provided at the front end of the pump body 21, and an inlet 23 is provided at the top of the pump body 21. The inlet 23 is used for water intake, and the flow-pushing shaft 22 is used to pump out the water flow. The flow-pushing shaft 22 is connected to the guide pipe 24, and auxiliary guide pipes 25 are provided on both sides of the guide pipe 24 for assistance. When the water flow is pumped out, the guide pipe 24 generates a negative pressure to generate suction inside the auxiliary guide pipe 25, thereby driving the suction transverse pipe 26 connected to the auxiliary guide pipe 25 to suck up the water flow, and a guide pipe 24 is provided at the front end of the guide pipe 24 for water discharge. The auxiliary guide pipe 25 causes the suction transverse pipe 26 to generate suction. The main function of the auxiliary guide pipe 25 to enable the water flow at the wall body shared by the breeding area 7 and the filtration area 3 to be circulated, forming an efficient double-circulation water flow and improving the sewage discharge efficiency.

[0046] The improved system uses the flow-pushing device 2 to spray, so that the water flow inside the breeding area 7 hits the circulator 6 to circulate the water to both sides. The driver 62 drives the first rotating shaft 623 at the bottom and the first rotating shaft 623 to rotate forward and reverse through the gear set. Not only is the structure more compact, but the speed of the rotating blade 63 can be consistent, which is more balanced when the water flow is sucked in, so that the water flow can be mixed with the water flow flowing on the surface of the guide wall 615 when it flows out of the side flow channel 613, thereby improving the flow efficiency of the diverted water body.

[0047] In order to reduce the dead zone of water flow, the filtered water introduced into the inlet 23 is pushed by the pump body 21 at the wall shared by the breeding area 7 and the filtration area 3, thereby circulating internally, and the guide pipe 24 and the auxiliary conduit 25 are used to generate suction so that the suction cross pipe 26 sucks the water flow of the shared wall for rapid circulation, so that the internal water flow is faster during circulation, and can drive the sediment to flow quickly through the sedimentation barrel 4 for recovery, thereby avoiding causing the water inside the breeding area 7 to be too dirty.

[0048] The above only describes the basic principles and preferred embodiments of the present invention. Those skilled in the art may make many changes and improvements based on the above description, and these changes and improvements should fall within the scope of protection of the present invention.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A dual-circulation sewage discharge ecological aquaculture system, the structure of which includes: A tank body (1) is provided, wherein the tank body (1) is divided into a filtration area (3) and a breeding area (7), a flow-pushing device (2) is installed in the middle of the filtration area (3), a collecting bucket (5) is installed inside the breeding area (7), and sedimentation buckets (4) are installed on both sides of the filtration area (3), characterized in that: A circulator (6) is installed inside the breeding area (7), and the circulator (6) is opposite to the outlet of the pump body (21) in the middle of the tank body (1); The circulator (6) includes a guide shell (61), a driver (62) is installed on the top of the shell (611) of the guide shell (61), and the driver (62) drives the rotating blades (63) installed inside the guide shell (61); The housing (611) is provided with two guide chambers (614) stacked up and down and cooperating with the rotating blades (63); the guide chamber (614) introduces water flow through a main push port (616) installed on the surface of the housing (611) and discharges water flow through a side flow groove (613) on the surface of the housing (611); the driver (62) drives the rotating blades (63) to rotate forward and reverse inside the guide chamber (614); A guide groove (612) is installed on the top of the shell (611). The shell (611) is triangular in shape, and a spike end is formed between the guide surface for diversion. Guide walls (615) and a main push port (616) are installed on both sides of the surface near the spike portion, and a side flow groove (613) is installed on the side away from the spike portion and in contact with the inner wall of the breeding area (7).

2. A dual-circulation sewage discharge ecological aquaculture system according to claim 1, characterized in that: The flow-pushing device (2) comprises a pump body (21), a flow-pushing shaft (22) is installed in the middle of a stirring box of the pump body (21), a flow inlet (23) is opened on the top of the stirring box, the flow inlet (23) is connected to the filter area (3) interlayer, and a flow guide pipe (24) is installed in the middle of the flow-pushing shaft (22), and is connected to the nozzle (27) through the flow guide pipe (24).

3. A dual-circulation sewage discharge ecological aquaculture system according to claim 2, characterized in that: Auxiliary conduits (25) and suction transverse pipes (26) are installed on both sides of the guide pipe (24). The auxiliary conduits (25) are installed on the sides of the guide pipe (24) and are provided with connection ports. The suction transverse pipes (26) are connected to the auxiliary conduits (25) and are installed on one side of the breeding area (7) close to the filtration area (3).

4. A dual-circulation sewage discharge ecological aquaculture system according to claim 3, characterized in that: The bottom of the suction transverse pipe (26) is provided with a strip-shaped through hole.

5. The dual-circulation sewage discharge ecological aquaculture system according to claim 1, characterized in that: The driver (62) includes a motor (621), which is mounted on the surface of a support base (622). A second driving wheel (626) and a first driving wheel (625) are mounted inside the support base (622), and the first driving wheel (625) and the second driving wheel (626) are connected to a first rotating shaft (623) and a second rotating shaft (624), respectively.

6. A dual-circulation sewage-discharge ecological aquaculture system according to claim 5, characterized in that: The first rotating shaft (623) and the second rotating shaft (624) are nested and matched, and a bearing supporting the rotation of the first rotating shaft (623) is installed inside the second rotating shaft (624).

7. A dual-circulation sewage discharge ecological aquaculture system according to claim 2, characterized in that: The opening of the spray outlet (27) is a multi-groove structure.

8. The dual-circulation sewage-discharge ecological aquaculture system according to claim 1, characterized in that: The main push opening (616) and the guide wall (615) are symmetrically arranged on the surface of the housing (611), and the main push opening (616) is staggered on both sides of the inclined surface.

9. The dual-circulation sewage-discharge ecological aquaculture system according to claim 6, characterized in that: The connection between the first rotating shaft (623) and the second rotating shaft (624) is located inside the rotating blade (63).

Citation Information

Patent Citations

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    CN112544538A

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