Gridding eel breeding system based on plastic greenhouse
By using a grid-based eel farming system based on plastic greenhouses, and employing a micro-circulation waterway and overflow pipe design, the problems of water temperature regulation and water quality cleaning in existing eel farming have been solved, thereby increasing the yield and quality of eels and reducing labor intensity.
Patent Information
- Application Number
- CN202520210767.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing eel farming methods suffer from problems such as high labor intensity, large capital investment, difficulty in cleaning up excrement, susceptibility to diseases in eels, and difficulty in observing the feeding and health status of eels.
The system employs a grid-based eel farming system based on plastic greenhouses, which includes a farming platform, plastic greenhouses, net cage units, water inlet components, and sewage discharge components. Through the design of micro-circulation water channels and overflow pipes, combined with a solar water storage tank, it achieves water temperature regulation and sewage purification, providing a clean farming environment.
It achieves effective water temperature regulation, maintains water quality, reduces labor intensity, reduces disease occurrence, increases eel yield and quality, and facilitates observation of eel growth status.
Smart Images
Figure CN223830180U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of eel farming technology, specifically relating to a grid-based eel farming system based on plastic greenhouses. Background Technology
[0002] Eels, as a type of aquatic product with tender flesh and rich nutrition, have always been a popular delicacy on the dining table. As consumers' demands for eel production and quality continue to increase, farmers are paying more and more attention to eel farming and gradually optimizing and improving eel farming systems and methods.
[0003] To date, eel farming technology has gone through the following models, each with its own advantages and disadvantages: (1) Rice paddy farming model, which is an agricultural method that combines eel farming with rice planting. It is a free-range model with low capital investment, but low yield, inconvenient to catch, and the quality cannot be guaranteed. (2) Fish pond farming model, which is an agricultural method of raising eels in fish ponds. It is also a free-range model with low capital investment, but low yield and the quality cannot be guaranteed. (3) Cement pond feeding model, which is a method of raising eels using cement ponds. It is convenient to catch, but requires a large capital investment and has a low yield. (4) The small net cage culture model in large fish ponds involves arranging several small net cages in the fish pond for eel farming. The net cages are made of nylon thread, and each net cage has a space of 4-6 square meters. Bamboo poles are inserted at the four corners of the net cages to fix them, which facilitates manual feeding and easy capture. However, the small net cages are densely arranged, making it difficult to clean up the excrement, which will produce ammonia nitrogen and sulfides, thus causing diseases in the eels. At the same time, due to the large-scale excavation of fish ponds, it brings great difficulties to the reclamation. (5) The floating bed culture model is based on the fourth culture model. All the small net cages are made into floating fish rafts. The fish rafts can move with the wind in the large fish pond, which is conducive to water exchange between the small net cages and the large fish pond. It helps to improve the water quality in the small net cages. However, the small net cages are densely arranged, making it difficult to clean up the excrement, which can easily lead to diseases in the eels.
[0004] All of the above eel farming methods have problems such as high labor intensity, large capital investment, difficulty in cleaning up excrement, and susceptibility to diseases in eels. They also make it difficult for farmers to observe the feeding and health status of the eels at any time.
[0005] With the continuous advancement of eel farming technology and the sustained expansion of market demand, farmers should pay more attention to improving the eel farming environment and making full use of resources. By reducing environmental pollution and improving farming efficiency, they can increase the yield and quality of eels, and achieve the sustainable development of the eel farming industry. Therefore, developing a grid-based eel farming system based on plastic greenhouses is an urgent need in the current eel farming field. Utility Model Content
[0006] To address the problems existing in the prior art, this utility model provides a grid-based eel farming system based on a plastic greenhouse, including a farming platform, a plastic greenhouse, net cage units, a water inlet component, and a sewage discharge component. The plastic greenhouse is installed above the farming platform. A main walkway is set along the length of the middle part of the farming platform, and side walkways are set along the length of the two sides of the farming platform. Two parallel tracks are set on the main walkway. Several net cage units are set in the area between the main walkway and the two side walkways, and the net cage units are arranged sequentially along the length of the farming platform. Two mutually perpendicular partitions are set inside the net cage unit, dividing the interior of the net cage unit into four equal grid units. The water inlet component and the sewage discharge component are both connected to the net cage unit to form a water circulation loop.
[0007] Preferably, the cage unit is rectangular in shape, and the material used to manufacture the cage unit includes any one or more of the following: knife-coated cloth, stainless steel, fiberglass, and polyethylene; the mesh unit is rectangular in shape; and the partition mesh has a plurality of mesh openings. The shape of the cage unit can be replaced with a cube, a circle, or a trapezoid; the shape of the mesh unit can be replaced with a cube, a circle, or a trapezoid.
[0008] In any of the above embodiments, it is preferred that the water inlet assembly includes a water storage tank, a first water inlet pipe, a second water inlet pipe, a branch water pipe, a water supply pipe, and a micro-circulation water pipe; the water storage tank is connected to the first water inlet pipe, and the first water inlet pipe and the second water inlet pipe are vertically connected on the same horizontal plane; the second water inlet pipe is buried in the aquaculture platform along the length direction of the aquaculture platform, and the second water inlet pipe is located below the main walkway.
[0009] In any of the above schemes, it is preferred that each of the cage units is provided with a water distribution pipe, a water supply pipe, and a micro-circulation water pipe, and the water distribution pipe, the water supply pipe, and the micro-circulation water pipe are connected in sequence from bottom to top.
[0010] In any of the above embodiments, it is preferred that the water distribution pipe is buried in the aquaculture platform and that the water distribution pipe and the second water inlet pipe are vertically connected on the same horizontal plane; the lower end of the water supply pipe is vertically connected to the water distribution pipe, and the upper end of the water supply pipe is vertically connected to the micro-circulation water pipe.
[0011] In any of the above embodiments, it is preferred that the micro-circulation water pipe has an L-shaped structure, the micro-circulation water pipe is fixed on two adjacent sides of the cage unit, the micro-circulation water pipe has several water injection holes, the opening direction of the water injection holes faces the inside of the cage unit; valves are respectively provided at both ends of the micro-circulation water pipe.
[0012] In any of the above embodiments, it is preferred that the sewage discharge assembly includes a sewage tank, a first sewage pipe, a second sewage pipe, an inclined pipe, a drain pipe, a floor drain, and an overflow pipe; the sewage tank is connected to the first sewage pipe, the first sewage pipe and the second sewage pipe are vertically connected on the same horizontal plane, and the second sewage pipe is buried in the aquaculture platform along the length of the aquaculture platform; the first sewage pipe is located directly below the first water inlet pipe, and the second sewage pipe is located directly below the second water inlet pipe.
[0013] In any of the above schemes, it is preferred that each of the cage units is provided with an inclined pipe, a drain pipe, a floor drain, and an overflow pipe, and the inclined pipe, the drain pipe, the floor drain, and the overflow pipe are connected in sequence from bottom to top.
[0014] In any of the above embodiments, preferably, the inclined pipe is buried in the aquaculture platform, the inclined pipe is vertically connected to the second sewage pipe, and the inclined pipe forms a 30-degree angle with the horizontal plane; the drain pipe is buried in the aquaculture platform, the drain pipe is located below the net cage unit, and the drain pipe is set perpendicular to the horizontal plane; the floor drain is set on the bottom surface inside the net cage unit; the overflow pipe is located inside the net cage unit, and the overflow pipe is set perpendicular to the floor drain, and the top of the overflow pipe is provided with a concave opening.
[0015] In any of the above embodiments, it is preferred that the plastic greenhouse is closed at both ends, and entrances and exits are respectively provided at both ends opposite the main walkway.
[0016] This invention allows for the arrangement of several (at least one) grid-based eel farming systems based on plastic greenhouses, tailored to specific needs. These systems can be integrated with one or more water storage tanks and wastewater tanks, or each can be equipped with a separate water storage tank and wastewater tank. The water storage tanks can be constructed at a height of 1.5 meters above the water level to facilitate rapid water flow into the inlet components, or they can be constructed directly on the water level, using a water pump to facilitate rapid water flow into the inlet components. A purification device can be installed in the wastewater tank to help purify the discharged wastewater. For a single farming system, the dimensions of the farming platform, the plastic greenhouse, the size and number of net cage units, and the size and number of grid units can be designed according to specific circumstances.
[0017] This utility model relates to a grid-based eel farming system based on plastic greenhouses, which has the following beneficial effects:
[0018] (1) By setting up plastic greenhouses and combining them with water microcirculation, the water temperature in the net cage unit can be regulated to keep it within a temperature range (15-20℃) that is conducive to the growth of eels. If the water temperature is too high, it can be cooled down by using shade nets and further cooled down by water microcirculation; if the water temperature is too low, hot water can be injected into the net cage unit through a solar-powered water storage tank to raise the water temperature and keep the water temperature in the net cage unit within a suitable temperature range.
[0019] (2) The plastic greenhouse maintains a relatively constant temperature, thereby improving the working environment for the farmers.
[0020] (3) Two tracks are laid on the main walkway to facilitate the movement of feed delivery vehicles, fish fry delivery vehicles, cleaning vehicles, etc., saving manual handling costs and reducing labor intensity.
[0021] (4) Eel nests are placed in the grid units instead of floating plants to avoid water quality damage caused by the rotting of floating plant roots. At the same time, eel nests can provide a growth environment for eels and make it easy to observe the feeding and growth status of eels. Water cannot be mixed between net cage units to prevent the spread of diseases.
[0022] (5) An overflow pipe is installed inside the net cage unit. After feeding, the micro-circulation water pipe is opened half an hour later to overflow the residue and avoid the need to deal with leftover food. The overflow pipe, together with the micro-circulation water pipe, discharges uneaten food and oil, keeping the water surface clean and transparent, making it easy to observe the feeding and health status of the fish fry.
[0023] (6) Water inlet components and sewage discharge components are installed. The water inlet components are used to allow clean water to flow in, and the sewage discharge components are used to discharge the sewage from the net cage unit and the excrement of the eels, so as to maintain the water quality to the maximum extent, reduce the production of ammonia nitrogen and sulfides, reduce the diseases that occur during the breeding process, and improve the yield and quality of eels. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a preferred embodiment of the grid-based eel farming system based on a plastic greenhouse according to the present invention.
[0025] Figure 2 for Figure 1 A schematic diagram of the layout of the aquaculture platform in the illustrated embodiment;
[0026] Figure 3 for Figure 1 The diagram shows the structural schematic of the cage unit in the embodiment shown.
[0027] Figure 4 for Figure 1 A schematic diagram of the water inlet and sewage discharge components in the illustrated embodiment (showing the aquaculture platform);
[0028] Figure 5 for Figure 1 The schematic diagram of the water inlet component and the sewage discharge component in the embodiment shown (the aquaculture platform is not shown);
[0029] Figure 6 for Figure 1 The illustrated embodiment shows a schematic diagram of the water inlet and sewage discharge components for a single cage unit (showing the cage unit);
[0030] Figure 7 for Figure 1 The illustrated embodiment shows a schematic diagram of the water inlet and sewage discharge components for a single mesh cage unit (the mesh cage unit is not shown).
[0031] Explanation of annotations in the image:
[0032] 1-Aquaculture platform;
[0033] 2-Plastic greenhouse;
[0034] 3-Gabion unit, 301-Separator mesh, 302-Grid unit, 303-Mesh opening;
[0035] 4-Water inlet assembly, 401-Water storage tank, 402-First water inlet pipe, 403-Second water inlet pipe, 404-Divider pipe, 405-Water supply pipe, 406-Micro-circulation water pipe, 407-Water injection hole, 408-Valve;
[0036] 5-Sewage discharge assembly, 501-Sewage tank, 502-First sewage discharge pipe, 503-Second sewage discharge pipe, 504-Inclined pipe, 505-Drain pipe, 506-Floor drain, 507-Overflow pipe, 508-Concave opening;
[0037] 6-Main pedestrian walkway;
[0038] 7-Side pedestrian walkway;
[0039] 8-track. Detailed Implementation
[0040] To further understand the invention, the following detailed description of the present invention will be provided in conjunction with specific embodiments.
[0041] like Figure 1-7As shown, according to a preferred embodiment of the grid-based eel farming system based on a plastic greenhouse of this utility model, it includes a farming platform 1, a plastic greenhouse 2, net cage units 3, a water inlet component 4, and a sewage discharge component 5; the plastic greenhouse 2 is arranged above the farming platform 1, a main walkway 6 is arranged along the length of the middle part of the farming platform 1, and side walkways 7 are arranged along the length of the two sides of the farming platform 1; two tracks 8 are arranged parallel to each other on the main walkway 6, and three net cage units 3 are arranged in the area between the main walkway 6 and the two side walkways 7, and the three net cage units 3 are arranged sequentially along the length of the farming platform 1; two mutually perpendicular partition nets 301 are arranged inside the net cage unit 3, and the two partition nets 301 divide the interior of the net cage unit 3 into four equal grid units 302; the water inlet component 4 and the sewage discharge component 5 are both connected to the net cage unit 3 to form a water circulation loop.
[0042] The cage unit 3 is rectangular in shape, and the material used to prepare the cage unit 3 is selected from knife-coated cloth, or stainless steel, fiberglass or polyethylene; the mesh unit 302 is rectangular in shape; the partition net 301 is provided with a plurality of mesh holes 303.
[0043] The water inlet assembly 4 includes a water storage tank 401, a first water inlet pipe 402, a second water inlet pipe 403, a branch water pipe 404, a water supply pipe 405, and a micro-circulation water pipe 406; the water storage tank 401 is connected to the first water inlet pipe 402, and the first water inlet pipe 402 and the second water inlet pipe 403 are vertically connected on the same horizontal plane; the second water inlet pipe 403 is buried in the aquaculture platform 1 along the length direction of the aquaculture platform 1, and the second water inlet pipe 403 is located below the main walkway 6.
[0044] Each of the net cage units 3 is equipped with a water distribution pipe 404, a water supply pipe 405, and a micro-circulation water pipe 406, which are connected sequentially from bottom to top. The water distribution pipe 404 is buried in the aquaculture platform 1 and is vertically connected to the second water inlet pipe 403 on the same horizontal plane. The lower end of the water supply pipe 405 is vertically connected to the water distribution pipe 404, and the upper end of the water supply pipe 405 is vertically connected to the micro-circulation water pipe 406. The micro-circulation water pipe 406 has an L-shaped structure and is fixed on two adjacent sides of the net cage unit 3. Several water injection holes 407 are opened on the micro-circulation water pipe 406, and the opening direction of the water injection holes 407 faces the interior of the net cage unit 3. Valves 408 are respectively installed at both ends of the micro-circulation water pipe 406.
[0045] The sewage discharge assembly 5 includes a sewage tank 501, a first sewage pipe 502, a second sewage pipe 503, an inclined pipe 504, a drain pipe 505, a floor drain 506, and an overflow pipe 507. The sewage tank 501 is connected to the first sewage pipe 502, and the first sewage pipe 502 and the second sewage pipe 503 are vertically connected on the same horizontal plane. The second sewage pipe 503 is buried in the aquaculture platform 1 along the length of the aquaculture platform 1. The first sewage pipe 502 is located directly below the first water inlet pipe 402, and the second sewage pipe 503 is located directly below the second water inlet pipe 403.
[0046] Each of the net cage units 3 is equipped with an inclined pipe 504, a drain pipe 505, a floor drain 506, and an overflow pipe 507, which are connected sequentially from bottom to top. The inclined pipe 504 is buried in the aquaculture platform 1 and is perpendicularly connected to the second sewage pipe 503, forming a 30-degree angle with the horizontal plane. The drain pipe 505 is buried in the aquaculture platform 1, located below the net cage unit 3, and is perpendicular to the horizontal plane. The floor drain 506 is located on the bottom surface inside the net cage unit 3. The overflow pipe 507 is located inside the net cage unit 3 and is perpendicular to the floor drain 506, with a concave opening 508 at the top.
[0047] The plastic greenhouse is closed at both ends, and entrances and exits are set at both ends directly opposite the main walkway.
[0048] This embodiment describes a grid-based eel farming system based on a plastic greenhouse. The system includes a water storage tank and a wastewater tank. The water storage tank is built on a horizontal surface, and a water pump helps to quickly draw water from the tank into the inlet assembly. A purification device can be installed in the wastewater tank to help clean the discharged wastewater. Multiple farming systems can also be arranged according to actual conditions. These systems can be integrated with one or more water storage tanks and wastewater tanks, or they can each have their own separate tank. The water storage tank can be built at a height of 1.5 meters above the horizontal surface to facilitate rapid water flow into the inlet assembly.
[0049] This embodiment can be designed according to actual conditions, including the size of the aquaculture platform, the size of the plastic greenhouse, the size and quantity of the net cage unit, and the size and quantity of the grid unit.
[0050] This embodiment of the grid-based eel farming system based on plastic greenhouses has the following beneficial effects: (1) By setting up plastic greenhouses and cooperating with water microcirculation, the water temperature in the net cage unit can be adjusted to keep the water temperature within a temperature range conducive to eel growth (15-20℃); if the water temperature is too high, it can be cooled by using shade nets and further cooled by water microcirculation; if the water temperature is too low, hot water can be injected into the net cage unit through a solar-powered water storage tank to raise the water temperature and keep the water temperature in the net cage unit within a suitable temperature range. (2) The plastic greenhouse basically maintains a constant temperature, thereby improving the working environment for aquaculture personnel. (3) Two tracks are laid on the main walkway to facilitate the movement of feed delivery vehicles, fry delivery vehicles, cleaning vehicles, etc., saving labor costs and reducing labor intensity. (4) Eel nests are placed in the grid units instead of floating weeds to avoid water quality damage caused by the rotting roots of floating weeds. At the same time, eel nests provide a growth environment for eels and facilitate observation of their feeding and growth status. Water cannot be mixed between net cage units to prevent the spread of diseases. (5) Overflow pipes are installed inside the net cage units. The micro-circulation water pipe is turned on half an hour after each feeding to overflow the residue, avoiding the need to deal with leftover food. The overflow pipes, together with the micro-circulation water pipes, discharge uneaten food and oil, keeping the water surface clean and transparent, making it easy to observe the feeding and health status of the fry. (6) Water inlet components and sewage discharge components are laid. The water inlet components are used to receive clean water, and the sewage discharge components are used to discharge the sewage used to clean the net cage units and the excrement of eels, maximizing water cleanliness, reducing the production of ammonia nitrogen and sulfides, reducing diseases during the breeding process, and improving the yield and quality of eels.
[0051] Those skilled in the art will readily understand that the grid-based eel farming system based on plastic greenhouses of this utility model includes any combination of the utility model content and specific embodiments described in the above-mentioned specification and the various parts shown in the accompanying drawings. Due to space limitations and for the sake of brevity, not all of these combined solutions have been described in detail. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A grid-based eel farming system based on plastic greenhouses, characterized in that: The system includes a breeding platform, a plastic greenhouse, net cage units, a water inlet assembly, and a sewage discharge assembly. The plastic greenhouse is positioned above the breeding platform. A main walkway is located along the length of the middle section of the breeding platform, and side walkways are located along the length of each side section. Two parallel tracks are installed along the main walkway. Several net cage units are located in the area between the main walkway and the two side walkways, arranged sequentially along the length of the breeding platform. Each net cage unit contains two perpendicular partitions, dividing the interior into four equal grid units. The water inlet assembly and the sewage discharge assembly are both connected to the net cage units, forming a water circulation loop.
2. The grid-based eel farming system based on plastic greenhouses according to claim 1, characterized in that: The cage unit is rectangular in shape, and the material used to prepare the cage unit includes any one of the following: knife-coated cloth, stainless steel, fiberglass, and polyethylene; the mesh unit is rectangular in shape; and the mesh has a plurality of mesh openings.
3. The grid-based eel farming system based on a plastic greenhouse according to claim 2, characterized in that: The water inlet assembly includes a water storage tank, a first water inlet pipe, a second water inlet pipe, a branch water pipe, a water supply pipe, and a micro-circulation water pipe; the water storage tank is connected to the first water inlet pipe, and the first water inlet pipe and the second water inlet pipe are vertically connected on the same horizontal plane; the second water inlet pipe is buried in the aquaculture platform along the length of the aquaculture platform, and the second water inlet pipe is located below the main walkway.
4. The grid-based eel farming system based on plastic greenhouses according to claim 3, characterized in that: Each of the cage units is equipped with a water distribution pipe, a water supply pipe, and a micro-circulation water pipe, which are connected sequentially from bottom to top.
5. The grid-based eel farming system based on a plastic greenhouse according to claim 4, characterized in that: The water distribution pipe is buried in the aquaculture platform, and the water distribution pipe is vertically connected to the second water inlet pipe on the same horizontal plane; the lower end of the water supply pipe is vertically connected to the water distribution pipe, and the upper end of the water supply pipe is vertically connected to the micro-circulation water pipe.
6. The grid-based eel farming system based on a plastic greenhouse according to claim 5, characterized in that: The micro-circulation water pipe has an L-shaped structure and is fixed on two adjacent sides of the cage unit. Several water injection holes are opened on the micro-circulation water pipe, and the opening direction of the water injection holes faces the inside of the cage unit. Valves are respectively installed at both ends of the micro-circulation water pipe.
7. The grid-based eel farming system based on a plastic greenhouse according to claim 6, characterized in that: The sewage discharge assembly includes a sewage tank, a first sewage pipe, a second sewage pipe, an inclined pipe, a drain pipe, a floor drain, and an overflow pipe; the sewage tank is connected to the first sewage pipe, the first sewage pipe and the second sewage pipe are vertically connected on the same horizontal plane, and the second sewage pipe is buried in the aquaculture platform along the length of the aquaculture platform; The first drain pipe is located directly below the first inlet pipe, and the second drain pipe is located directly below the second inlet pipe.
8. The grid-based eel farming system based on a plastic greenhouse according to claim 7, characterized in that: Each of the cage units is equipped with an inclined pipe, a drain pipe, a floor drain, and an overflow pipe, which are connected sequentially from bottom to top.
9. The grid-based eel farming system based on a plastic greenhouse according to claim 8, characterized in that: The inclined pipe is buried in the aquaculture platform and is vertically connected to the second sewage pipe, forming a 30-degree angle with the horizontal plane; the drain pipe is buried in the aquaculture platform and is located below the net cage unit, and is set perpendicular to the horizontal plane; the floor drain is set on the bottom surface inside the net cage unit; the overflow pipe is located inside the net cage unit and is set perpendicular to the floor drain, with a concave opening at the top of the overflow pipe.
10. The grid-based eel farming system based on a plastic greenhouse according to claim 9, characterized in that: The plastic greenhouse is closed at both ends, and entrances and exits are set at both ends opposite the main walkway.