Cold water mariculture net pens

By designing cold-water mass culture cages, the problem of inconvenient water temperature control in traditional deep-sea cages during summer has been solved. This has enabled the circulation and convenient operation of cold water for fish fry, improving the temperature control of the fish fry growth environment and the efficiency of fish farming.

CN119318314BActive Publication Date: 2026-03-17RIZHAO WANZEFENG FISHERIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional deep-sea cages are difficult to control water temperature in summer, resulting in poor quality of fish fry and inconvenient operation.

Method used

A cold water mass aquaculture cage was designed, including a base, a central column, an aquaculture mechanism, a maintenance mechanism, a conveying mechanism, and a harvesting mechanism. The combination of the inner and outer shells of the central column realizes the cold water channel and ventilation function, and is equipped with components such as ventilation hood, conveying pipe, ladder and crane to improve the ease of operation.

Benefits of technology

It enables ventilation and cold water circulation for fish in a fully submerged state, improves temperature control of the fish fry growth environment, simplifies fish fry release, harvesting and equipment maintenance, and improves aquaculture efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of fish farming technology, specifically to a cold-water mass aquaculture cage, comprising a column, a farming mechanism mounted on the central column, a maintenance mechanism mounted on the farming mechanism, a conveying mechanism mounted on the farming mechanism, and a harvesting mechanism mounted on the farming mechanism. The farming mechanism facilitates the rearing of fish fry and maintains a low water temperature, while also promoting aeration of the fry. The conveying mechanism facilitates the extraction and transport of cold water from the bottom, providing water circulation and aeration. The maintenance mechanism facilitates the release and feeding of fish fry and allows divers to descend and maintain the entire equipment, making operation more convenient. The harvesting mechanism facilitates the attraction of adult fish, making harvesting and retrieval easier and more labor-saving.
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Description

Technical Field

[0001] This invention relates to the field of fish farming technology, specifically to cold water mass aquaculture cages. Background Technology

[0002] Deep-sea aquaculture cages mainly consist of a frame system, floating boxes, a fixing system, and supporting facilities. Utilizing the interaction of the fixed platforms and the inherent characteristics of the cages themselves, they are lowered to a predetermined underwater depth. They are characterized by high strength, good flexibility, corrosion resistance, aging resistance, strong resistance to wind and waves, long service life, large effective aquaculture volume, high efficiency, low overall cost, low pollution, excellent water quality, low fish mortality, and high-quality fish products. They are primarily used in the Yellow Sea cold water mass in the central Yellow Sea, where water depths exceed 50 meters. The thermocline is located 20-30 meters below the sea surface, with bottom water temperatures ranging from 4.6℃ to 9.3℃ in summer, thus allowing the establishment of cold-water channels for summer aquaculture of cold-water fish.

[0003] However, traditional net cage structures present inconveniences in both submerged and surfacing states, such as the need for adult fish to breathe, the release of fry, the harvesting of adult fish, and the diving of divers. In summer, it is also difficult to control the water temperature, resulting in high surface water temperatures and poor fry farming quality. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a cold water mass aquaculture cage.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a cold water mass aquaculture cage, including a base, an aquaculture mechanism installed on the central column, a maintenance mechanism installed on the aquaculture mechanism, a conveying mechanism installed on the aquaculture mechanism, and a harvesting mechanism installed on the aquaculture mechanism.

[0006] Specifically, the aquaculture structure includes a net frame, and the central column is connected to the net frame. The central column is divided into inner and outer shells. The two ends of the inner shell of the central column extend to the outer ends of the outer shell of the central column. The top of the net frame is connected to the central column and the supporting column. The bottom side wall of the inner shell of the central column is provided with multiple through grooves distributed in a ring. The bottom of the supporting column is equipped with a buoy.

[0007] Specifically, a ventilation hood is installed on the outer side of the central column shell. The ventilation hood is located at the center of the top of the mesh frame and has a conical structure.

[0008] Specifically, the conveying mechanism includes conveying pipes, and multiple conveying pipes are installed between the inner shell and the outer shell of the central column. Multiple drain pipes are installed on one side of the top of the inner shell of the central column. The tops of the multiple cold water conveying pipes are respectively connected to the multiple drain pipes through water pumps, and the bottoms of the multiple conveying pipes extend to the outer side of the bottom of the outer shell of the central column.

[0009] Specifically, a control valve is installed at the bottom of each of the multiple cold water delivery pipes, and a filter screen is installed at the bottom of each of the multiple cold water delivery pipes.

[0010] Specifically, the maintenance mechanism includes a ladder, which is installed on the outside of the central column shell and has a spiral structure.

[0011] Specifically, a connection port is installed on the outer side of the top of the inner shell of the central column, and a manhole cover is installed on the top of the connection port.

[0012] Specifically, the fishing mechanism includes a crane, with an equipment room on the upper part of the central column where the crane is installed. A hinge is connected to the crane, and a fishing net is slidably connected to the bottom of the inner shell of the central column. The bottom of the hinge is connected to the fishing net.

[0013] Specifically, multiple fish-attracting lights are installed on the inner side wall of the inner shell of the central column, and the fish-attracting lights are electrically connected to the controller.

[0014] The beneficial effects of this invention are:

[0015] (1) The cold water mass aquaculture cage of the present invention, through the installation of the aquaculture mechanism, facilitates the aquaculture of fish fry and plays a role in maintaining the low temperature of the aquaculture water, and also facilitates the aeration of fish fry. That is: through the installation of the net frame, it is convenient to raise fish fry; through the installation of the outer shell and inner shell of the central column, it is convenient to increase the cold water channel, which plays a role in maintenance, release, and harvesting, and also plays a role in aeration and cold preservation; through the channel, it is convenient for fish to enter and exit; through the cooperation of the float box, the net frame can be controlled to float up and down; through the installation of the ventilation hood, it is convenient for fish to breathe in the fully submerged state.

[0016] (2) The cold water mass aquaculture cage of the present invention, with the cooperation of the conveying mechanism, facilitates the extraction and transportation of cold water from the bottom of the water body, and provides water circulation supply, which plays a role in ventilation. That is, with the installation of the cold water conveying pipe, the cold water at the bottom of the water body can be extracted with the cooperation of the water pump, and transported to the inner shell of the central column through the drain pipe. The ventilation work is achieved through the circulation of cold water, and the cold water can enter the mixing, which ensures the growth of fish fry. With the installation of the control valve, the flow rate of cold water can be controlled, which is conducive to the fish swimming out with the current. With the cooperation of the filter screen, external organisms can be intercepted.

[0017] (3) The cold water mass aquaculture cage of the present invention facilitates the release and feeding of fish fry through the installation of the maintenance mechanism, and also facilitates diving personnel to dive down to maintain the entire equipment. The operation is more convenient. That is, the installation of the ladder facilitates the maintenance work of the staff, and the installation of the connection port facilitates the feeding of food and the release of fish fry and the harvesting of adult fish, and also allows the staff to dive down for maintenance.

[0018] (4) The cold water mass aquaculture cage of the present invention, through the installation of the fishing mechanism, facilitates the induction of adult fish, thereby making it easier to extract the fish after fishing. The operation is more convenient and labor-saving. That is, through the operation of the crane, the crane drives the hinge to lift, so that the hinge carries the fishing net to move, thereby fishing and lifting the adult fish, so that the fish can be taken out through the connection port. Through the installation of the fish-attracting lamp, it is beneficial to illuminate the inside of the shell, and through the control of the controller, the brightness of the fish-attracting lamp can be changed, thereby inducing the fish to swim out. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the ladder and the central column shell of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the delivery pipe and the inner shell of the central column of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the fishing net and the inner shell of the central column of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection structure between the control valve and the cold water delivery pipe of the present invention.

[0025] In the diagram: 1. Central column; 2. Aquaculture structure; 201. Netting frame; 202. Ventilation hood; 203. Inner shell of the central column; 204. Outer shell of the central column; 205. Through channel; 206. Floating box; 207. Support column; 3. Maintenance mechanism; 301. Connection port; 302. Manhole cover; 303. Ladder; 4. Conveying mechanism; 401. Conveying pipe; 402. Drainage pipe; 403. Filter screen; 404. Control valve; 405. Water pump; 5. Fishing mechanism; 501. Crane; 502. Hinge; 503. Fish attracting light; 504. Net; 505. Controller. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the cold water mass aquaculture cage of the present invention includes a base 1, an aquaculture mechanism 2 installed on the central column 1, a maintenance mechanism 3 installed on the aquaculture mechanism 2, a conveying mechanism 4 installed on the aquaculture mechanism 2, and a harvesting mechanism 5 installed on the aquaculture mechanism 2.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the aquaculture structure 2 includes a net frame 201. A net frame 201 is connected to the outer side of the inner shell of the central column 1. The central column 1 is divided into an inner shell 203 and an outer shell 204. The outer shell 204 of the central column is wrapped around the outer side of the central inner shell 203. The two ends of the central inner shell 203 extend to the outer ends of the central outer shell 204. The top of the net frame 201 is connected to the central column 1 and the supporting column 207. The bottom side wall of the central inner shell 203 is provided with multiple annularly distributed channels 205. A float box 206 is installed at the bottom of the supporting column 207. The installation of the net frame 201 facilitates the cultivation of fish fry. The installation of the central outer shell 204 and the central inner shell 203 increases the cold water channel, which plays a role in maintenance, stocking, and harvesting. It also plays a role in ventilation and heat preservation. The channels 205 facilitate the entry and exit of fish.

[0029] Specifically, such as Figure 1 As shown, a ventilation hood 202 is installed on the outside of the central column shell 204. The ventilation hood 202 is located at the top center of the net frame 201. The ventilation hood 202 has a conical structure. The installation of the ventilation hood 202 facilitates the breathing of fish in a fully submerged state.

[0030] Specifically, such as Figure 3 and Figure 4As shown, the conveying mechanism 4 includes conveying pipes 401. Multiple conveying pipes 401 are installed between the inner shell 203 and the outer shell 204 of the central column. Multiple drain pipes 402 are installed on one side of the top of the inner shell 203 of the central column. The tops of the multiple conveying pipes 401 are respectively connected to the multiple drain pipes 402 via water pumps 405. The bottoms of the multiple conveying pipes 401 extend to the outer side of the bottom of the outer shell 204 of the central column. The installation of the conveying pipes 401 facilitates the extraction of cold water from the bottom of the water with the cooperation of the water pumps 405, and the water is transported to the inner shell 203 of the central column through the drain pipes 402. The circulation of cold water enables aeration and allows the cold water to enter the mixing process, thus ensuring the growth of the fish fry.

[0031] Specifically, such as Figure 4 and Figure 5 As shown, control valves 404 are installed at the bottom of the multiple delivery pipes 401, and filter screens 403 are installed at the bottom of the multiple delivery pipes 401. The installation of the control valves 404 facilitates the control of the cold water delivery flow rate, which is conducive to the fish swimming out with the current. With the cooperation of the filter screens 403, external organisms are intercepted.

[0032] Specifically, such as Figure 2 As shown, the maintenance mechanism 3 includes a ladder 303. The ladder 303 is installed on the outside of the central column housing 204. The ladder 303 has a spiral structure. The installation of the ladder 303 facilitates maintenance work for the staff.

[0033] Specifically, such as Figure 2 and Figure 3 As shown, a connection port 301 is installed on the outer side of the top of the inner shell 203 of the central column. A manhole cover 302 is rotatably connected to the top of the connection port 301. The installation of the connection port 301 facilitates feeding, releasing of fish fry, and harvesting of adult fish, and also allows staff to dive down for maintenance.

[0034] Specifically, such as Figure 3 and Figure 4 As shown, the fishing mechanism 5 includes a crane 501. The crane 501 is installed in an equipment room on the upper part of the central column. A hinge 502 is connected to the crane 501. A net 504 is slidably connected to the bottom of the inner shell 203 of the central column. The bottom of the hinge 502 is connected to the net 504. Through the operation of the crane 501, the crane 501 drives the hinge 502 to lift, so that the hinge 502 carries the net 504 to move, thereby catching and lifting the adult fish, and taking out the caught fish through the connection port 301.

[0035] Specifically, such as Figure 3 and Figure 4 As shown, multiple fish-attracting lights 503 are installed on the inner wall of the central column inner shell 203, which are equidistant and arranged in a ring. The fish-attracting lights 503 are electrically connected to the controller 505. The installation of the fish-attracting lights 503 facilitates the illumination of the interior of the central column inner shell 203. Furthermore, the brightness of the fish-attracting lights 503 can be changed by the controller 505, thereby inducing fish to swim out.

[0036] In use, this invention first facilitates fish fry rearing through the installation of the net frame 201. The installation of the central column outer shell 204 and inner shell 203 increases the cold water channel, supporting fish fry release and harvesting, while also providing ventilation and cooling. The passageway 205 facilitates fish movement. The float 206 allows for controlled vertical movement of the net frame 201. The ventilation hood 202 facilitates aeration of the fish in a fully submerged state. The delivery pipe 401, in conjunction with the water pump 405, extracts cold water from the bottom and delivers it to the inner shell 203 of the central column via the drain pipe 402. This circulating cold water ensures ventilation and mixing, protecting the fish. The growth of the fry is facilitated by the installation of control valve 404, which allows for control of the cold water flow rate and facilitates the fish swimming downstream. With the cooperation of filter screen 403, external organisms are intercepted. The installation of ladder 303 facilitates maintenance work by staff. The installation of connection port 301 facilitates feeding, fry release, and adult fish harvesting, and also allows staff to dive down for maintenance. The operation of crane 501 drives hinge 502 to lift, enabling hinge 502 to move net 504, thereby harvesting and lifting adult fish, which are then removed through connection port 301. The installation of fish-attracting light 503 provides illumination inside the inner shell 203, and the brightness of fish-attracting light 503 can be changed by controller 505, thereby inducing fish to swim out.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cold-water mariculture net cage, characterized in that Including center column (1), the center column (1) is installed with breeding mechanism (2), the breeding mechanism (2) is installed with maintenance mechanism (3), the breeding mechanism (2) is installed with conveying mechanism (4), the breeding mechanism (2) is installed with fishing mechanism (5); The breeding mechanism (2) includes netting net rack (201), the netting net rack (201) is connected with the center column (1) outside cooperation, the center column (1) is divided into center column inner shell (203) and center column outer shell (204), the center column inner shell (203) both ends extend to the both ends outside of center column outer shell (204), the netting net rack (201) top is connected with center column (1), support column (207), the center column inner shell (203) bottom side wall is equipped with multiple annular distribution through slot (205), the support column (207) bottom is installed with buoyancy tank (206); The center column outer shell (204) outside is installed with gas exchange cover (202), the gas exchange cover (202) is located at the top center of netting net rack (201), the gas exchange cover (202) is conical structure; The conveying mechanism (4) includes cold water delivery pipe (401), a plurality of cold water delivery pipes (401) are installed between the center column inner shell (203) and the center column outer shell (204), a plurality of drain pipes (402) are installed on one side of the center column inner shell (203) top, a plurality of cold water delivery pipes (401) top are connected with a plurality of drain pipes (402) through water pump (405) respectively, a plurality of cold water delivery pipes (401) bottom extend to the bottom outside of center column outer shell (204); A plurality of control valves (404) are installed at the bottom of a plurality of cold water delivery pipes (401) respectively, a plurality of filter screens (403) are installed at the bottom of a plurality of cold water delivery pipes (401) respectively; The fishing mechanism (5) includes crane (501), the crane (501) is installed on the center column inner shell (203) upper equipment room, the crane (501) is connected with hinge (502), the center column inner shell (203) bottom is connected with fishing net (504) slidingly, the hinge (502) bottom is connected with fishing net (504); A plurality of equidistant and annular distribution fish collecting lamps (503) are installed on the inner wall of the center column inner shell (203), the fish collecting lamp (503) is electrically connected with controller (505).

2. A cold-water mariculture net pen according to claim 1, characterised in that: The maintenance mechanism (3) includes ladder (303), the ladder (303) is installed outside the center column outer shell (204), the ladder (303) is spiral structure.

3. A cold-water mariculture net pen according to claim 1, characterized in that: The connecting port (301) top is rotatably connected with manhole cover (302) outside the center column inner shell (203) top.

Citation Information

Patent Citations

  • Floating type bottom layer fishes mechanical catching device

    CN201153452Y

  • Floating island for culturing marine products

    CN210124224U

  • Cold water aquaculture net cage

    CN210641991U