Sinking culture net cage utilizing retired wind power hub flow guide cover

By utilizing the decommissioned wind turbine hub guide cover as the cage frame, combined with gravity blocks and permeable gates, the problems of high material cost, easy corrosion, and difficulty in moving traditional bottom aquaculture cages have been solved, achieving improved structural strength and environmentally friendly aquaculture.

CN224139913UActive Publication Date: 2026-04-21FUJIAN JINJING CIRCULATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN JINJING CIRCULATION TECHNOLOGY CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional submerged aquaculture cages are expensive to make, susceptible to seawater corrosion, bulky and difficult to move, have a short service life, and pose a risk of pollution.

Method used

Using the decommissioned wind turbine hub guide cover as the cage frame, combined with gravity blocks and permeable gates, an integrated cage structure is formed. Its arc-shaped structure is used for recycling, reducing water flow impact, and floating operation is achieved through blade openings and top space.

Benefits of technology

This has improved the strength of the cage structure, reduced material waste and maintenance costs, prevented seawater corrosion, provided a stable aquaculture environment, and facilitated bottoming and floating operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sinking culture net cage utilizing a retired wind power hub flow guide cover, which comprises a wind power blade hub flow guide cover body, a gravity block and a culture cage permeable door, and the wind power blade hub flow guide cover is arranged as a net cage frame, so that the structural strength of the net cage frame is conveniently ensured, and the structural utilization rate is improved; a gravity block and a culture box permeable door are matched to form an integral net cage structure, so that the arc-shaped structure of the retired wind power blade hub flow guide cover is utilized to recycle existing resources, the structural strength of the retired wind power blade hub flow guide cover is effectively utilized, the impact of water flow on the net cage is reduced, and the service life of the net cage is prolonged. And air is filled in a space from the top of the blade opening to the top of the wind power blade hub flow guide cover, so that floating operation is realized, stable culture of aquatic products is performed, and sinking, floating fishing and maintenance operations of the aquatic products are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture cages, and in particular to a submerged aquaculture cage utilizing a decommissioned wind turbine hub guide cover. Background Technology

[0002] Traditional submerged aquaculture cages typically use steel frames with concrete bases, as shown in technical solution 202311382627.3. These cages suffer from drawbacks such as high material costs, susceptibility to seawater corrosion, and the need for frequent anti-corrosion painting of the steel structure. This not only increases operating costs but also easily pollutes water quality and aquaculture organisms. Meanwhile, decommissioned wind turbine hub covers (usually made of glass fiber reinforced plastic (GFRP) or other composite materials) possess high strength, corrosion resistance, and a long service life, and cannot naturally degrade over a short period. However, current technologies lack effective solutions for their recycling. Utility Model Content

[0003] Therefore, there is a need to provide a submerged aquaculture cage that utilizes the deflector cover of a decommissioned wind turbine hub, in order to solve the problems of high material cost, susceptibility to seawater corrosion, and bulky and difficult-to-move structure of existing submerged aquaculture cages.

[0004] To achieve the above objectives, this utility model provides a submerged aquaculture cage utilizing a decommissioned wind turbine hub guide cover, comprising a wind turbine hub guide cover body, a gravity block, a water-permeable door for the aquaculture cage, and a conveying pipeline;

[0005] The wind turbine blade hub guide cover body has two or more blade openings and base openings, and a conveying interface is provided on the top of the wind turbine blade hub guide cover body;

[0006] The gravity block is connected to the opening of the base of the wind turbine blade hub guide cover, and the aquaculture tank water-permeable door is connected to the blade opening;

[0007] The delivery pipeline is connected to the delivery interface via a flange.

[0008] In a preferred embodiment of this application, a conveying sealing ring and a clamp are also included. The conveying sealing ring is disposed on the flange, and the clamp is sleeved on the outside of the flange. By providing the sealing ring and clamp, it is convenient to seal and fix the conveying interface area, ensuring the effectiveness of gas conveying.

[0009] In a preferred embodiment of this application, a valve is provided on the delivery pipeline. By setting the valve on the delivery pipeline, it is easy to close the delivery pipeline and achieve gas retention during the floating process of the wind turbine blade hub guide cover body.

[0010] In a preferred embodiment of this application, a float is also included, which is disposed on the delivery pipeline. By setting the float, it is convenient to leave a portion of the delivery pipeline on the water surface, facilitating operations by personnel on the water surface.

[0011] In a preferred embodiment of this application, the gravity block and the wind turbine blade hub guide cover body are fixed by a bolt structure. By setting the bolts around the wind turbine blade hub guide cover body and the gravity block, it is ensured that the gravity block used for sinking is stably fixed on the base opening of the wind turbine blade hub guide cover body.

[0012] In a preferred embodiment of this application, the aquaculture tank permeable door has a double-layer structure, with the mesh size of the outer permeable door being larger than that of the inner permeable door. By setting up a double-layer structure for the aquaculture tank permeable door, it is convenient to use the larger mesh size of the outer permeable door to block harmful organisms, while the smaller mesh size of the inner permeable door helps prevent aquatic products from escaping.

[0013] In a preferred embodiment of this application, the bottom surface of the gravity block is equipped with claw-shaped ground anchors arranged in a dot matrix. The dot matrix arrangement of the anchors facilitates the positioning of the sunken aquaculture cages relative to the seabed.

[0014] In a preferred embodiment of this application, the gravity block is equipped with a column, which is connected to the top of the wind turbine blade hub guide cover body. By providing a column on the gravity block, it is convenient to further optimize the internal space of the aquaculture cage or to provide attachment space for aquatic products.

[0015] In a preferred embodiment of this application, the column connecting to the wind turbine blade hub guide cover body is provided with a hook. The hook facilitates the lifting and handling of the entire aquaculture cage.

[0016] Unlike existing technologies, the above technical solution has the following advantages: By setting the wind turbine blade hub guide cover as the cage frame, it is easier to ensure the structural strength of the cage frame, improve the structural utilization rate, and form an integrated cage structure with gravity blocks and aquaculture cage permeable doors. This allows for the recycling of existing resources by utilizing the arc-shaped structure of the retired wind turbine blade hub guide cover, effectively utilizing the structural strength of the retired wind turbine blade hub guide cover, reducing the impact of water flow on the cage, and using the space from the top of the blade opening to the top of the wind turbine blade hub guide cover for air injection to achieve floating operation and stable aquaculture of aquatic products. This facilitates bottoming, floating, retrieval, and maintenance operations, forming a reef-type bottom-sitting aquaculture cage. This avoids the waste of land resources and materials caused by the idle stockpiling of wind turbine retired composite materials, as well as the problems of traditional bottom-sitting aquaculture cages such as difficulty in feeding, high material costs, susceptibility to seawater corrosion, short service life, high maintenance costs, and pollution from anti-corrosion paint. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the submerged aquaculture net cage utilizing the decommissioned wind turbine hub guide cover in this embodiment of the present invention;

[0018] Figure 2 This is a detailed structural diagram of the wind turbine blade hub guide cover body in an embodiment of the present utility model;

[0019] Figure 3 This is a detailed structural diagram of the conveying pipeline in an embodiment of this utility model;

[0020] Figure 4 This is a detailed structural diagram of the flange in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the detailed structure of the blade opening in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Wind turbine blade hub guide cover body;

[0024] 11. Blade opening; 12. Base opening; 13. Conveying interface; 14. Flange;

[0025] 15. Sealing ring; 16. Clamp; 17. Hook;

[0026] 20. Water surface;

[0027] 30. Gravity block;

[0028] 31. Ground stakes;

[0029] 40. Water-permeable door for breeding boxes;

[0030] 50. Delivery pipelines;

[0031] 51. Valve; 52. Float. Detailed Implementation

[0032] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0035] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0036] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0037] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0038] Similar to the interpretation in the Patent Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also interpreted in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0039] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0040] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0041] Please see Figures 1 to 5 This utility model provides a submerged aquaculture cage utilizing a decommissioned wind turbine hub guide cover, comprising a wind turbine hub guide cover body 10, a gravity block 30, a water-permeable gate 40 for the aquaculture cage, and a conveying pipeline 50. The wind turbine hub guide cover body 10 has two or more blade openings 11 and base openings 12, and a conveying interface 13 is provided at the top of the wind turbine hub guide cover body 10. The gravity block 30 is connected to the base opening 12 of the wind turbine hub guide cover body 10, and the water-permeable gate 40 for the aquaculture cage is connected to the blade openings 11. The conveying pipeline 50 is connected to the conveying interface 13 via a flange 14.

[0042] Based on the above structure, in the process of manufacturing a submerged aquaculture cage utilizing a decommissioned wind turbine hub guide cover, the wind turbine blade hub guide cover body 10 is obtained. The wind turbine blade hub guide cover body 10 has pre-set blade openings 11 and base openings 12 with pre-set assembly areas, such as bolt mounting holes or threaded holes. In the base opening 12 area where the gravity block 30 is to be assembled, a steel reinforcement frame is pre-embedded, followed by concrete pouring to form the gravity block 30, which is then locked and fixed using pre-embedded screws and bolts. Subsequently, the permeable door 40 of the breeding box is installed on each blade opening 11, forming a breeding space inside the wind turbine blade hub guide cover body 10. Then, a conveying interface 13 is opened on the top of the wind turbine blade hub guide cover body 10, that is, in the dome area opposite to the base opening 12 of the wind turbine blade hub guide cover body 10. The conveying interface 13 can be formed by cutting or drilling. By setting the conveying interface 13 at the top of the wind turbine blade hub guide cover body 10, it is easy to fix and connect it with the conveying pipeline 50 through the flange 14.

[0043] During use, the submerged aquaculture cages of the decommissioned wind turbine hub guide cover are hoisted and placed into the water. Under the action of the bottom gravity block 30, they sink to the bottom and stabilize. Aquatic products are put into the inner space of the wind turbine hub guide cover body 10 for aquaculture. The water permeable door 40 of the aquaculture cage allows water to enter the inner side of the wind turbine hub guide cover body 10 for exchange. Operators can feed, administer medicine, deliver oxygen, and observe and retrieve aquatic products or structures through the delivery pipe 50, which is placed on the float 52 on the water surface 20.

[0044] By setting the wind turbine blade hub guide cover as the net cage frame, it is easy to ensure the structural strength of the net cage frame, improve the structural utilization rate, and form an integrated net cage structure with gravity block 30 and aquaculture tank permeable door 40. This realizes the recycling of existing resources by utilizing the arc structure of the retired wind turbine blade hub guide cover, effectively utilizing the structural strength of the retired wind turbine blade hub guide cover, reducing the impact of water flow on the net cage, and using the space from the blade opening 11 to the top of the wind turbine blade hub guide cover to inject air to achieve floating operation, conduct stable aquaculture, and facilitate bottom sinking, floating retrieval and maintenance operations.

[0045] Please see Figures 1 to 5 In a preferred embodiment of this application, a conveying sealing ring 15 and a clamp 16 are also included. The conveying sealing ring 15 is disposed on the flange 14, and the clamp 16 is sleeved on the outside of the flange 14. By providing the sealing ring 15 and the clamp 16, it is convenient to seal and fix the area of ​​the conveying interface 13, ensuring the effect of gas conveying.

[0046] Please see Figures 1 to 5 In a preferred embodiment of this application, a valve 51 is provided on the conveying pipeline 50. During operation, the operator can open and close the valve 51 manually or electrically to facilitate the feeding, equipment loading and unloading, and closure of the conveying pipeline 50. By providing the valve 51 on the conveying pipeline 50, it is convenient to close the conveying pipeline 50, thereby achieving gas retention during the floating process of the wind turbine blade hub guide cover body 10 and preventing the backflow of bait.

[0047] Please see Figures 1 to 5 In a preferred embodiment of this application, a float 52 is also included, which is disposed on the conveying pipeline 50. During use, the float 52 floats on the water surface 20, and one end of the conveying pipeline 50 is connected to the top of the float, making it easy for operators to locate the specific position of the conveying pipeline on the water surface and to perform equipment operations, material delivery, and other operations on the water surface based on the float 52. By setting up the float 52, it is convenient to leave a portion of the conveying pipeline 50 on the water surface, facilitating processing operations by operators on the water surface 20.

[0048] Please see Figures 1 to 5 In a preferred embodiment of this application, the gravity block 30 and the wind turbine blade hub guide cover body 10 are fixed by a bolt structure, which surrounds the blade opening 11 or the base opening 12. During assembly, when the bolt structure is installed in the pre-set holes of the base opening, it can be driven into the concrete of the base or overlapped below the pre-embedded steel bars to achieve stability of the base assembly. When assembling the aquaculture tank permeable door 40, it can be bolted to the frame of the aquaculture tank permeable door 40. By setting the stator to surround the blade opening or the base opening, and cooperating with the gravity block 30 to connect the base opening 12, it is ensured that the gravity block 30 used for sinking is stably fixed on the base opening 12 of the wind turbine blade hub guide cover body 10.

[0049] Please see Figures 1 to 5 In a preferred embodiment of this application, the aquaculture tank permeable door 40 has a double-layer structure, with the mesh size of the outer permeable door 40 being larger than that of the inner permeable door 40. During use, the mesh size of the outer mesh of the aquaculture tank permeable door 40 is used to block external organisms and foreign objects from entering the aquaculture space, while the mesh size of the inner mesh of the aquaculture tank permeable door 40 is used to prevent aquatic products from escaping. By setting a double-layer structure for the aquaculture tank permeable door 40, it is convenient to use the larger mesh size of the outer permeable door 40 to block harmful organisms, while the smaller mesh size of the inner permeable door 40 is used to prevent aquatic products from escaping.

[0050] In the above embodiment, the delivery pipeline 50 is a steel wire wound polyethylene composite hose.

[0051] Please see Figures 1 to 5 In a preferred embodiment of this application, the bottom surface of the gravity block 30 is equipped with claw-shaped ground anchors arranged in a dot matrix. By setting the dot matrix arrangement of the ground anchors 31, it is convenient to position the sunken aquaculture cages relative to the seabed.

[0052] Please see Figures 1 to 5 In a preferred embodiment of this application, the gravity block 30 is provided with a column. One end of the column is connected to the gravity block 30, and the other end is directly connected to or connected via a bracket to the top of the wind turbine blade hub guide cover body 10, i.e., the area where the dome is located. By providing a column on the gravity block 30, it is convenient to further optimize the internal space of the aquaculture cage or to provide attachment space for aquatic products.

[0053] Please see Figures 1 to 5 In a preferred embodiment of this application, the outer side of the wind turbine blade hub guide cover body 10 connected to the column is provided with a hook 17. The hook 17 facilitates the lifting and handling of the entire aquaculture cage.

[0054] Please see Figures 1 to 5In the above embodiments, the bottom of the gravity block 30 may be covered with metal or glass fiber composite material for anti-slip treatment.

[0055] In the above embodiments, the specific position of the top of the wind turbine blade hub guide cover body 10 is the center position on the shell of the wind turbine blade hub guide cover body 10 between multiple assembly ports of the blade, or the dome end opposite to the base opening 12 of the wind turbine blade hub guide cover body 10.

[0056] In the above embodiments, the aquaculture tank permeable door 40 is detachably connected to the wind turbine blade hub guide cover body 10 via bolts or hinges and pins. In actual use, one side of the aquaculture tank permeable door 40 is rotatably connected via a hinge or pin, while the remaining parts are fixed in a closed state via bolts or pins.

[0057] In the above embodiments, the aquaculture cage is a submerged aquaculture cage that utilizes the decommissioned wind turbine hub guide cover.

[0058] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A sinking bottom aquaculture net cage utilizing a decommissioned wind turbine hub cowling, characterized by: Includes the wind turbine blade hub guide cover body, gravity block, aquaculture tank water permeable door and conveying pipeline; The wind turbine blade hub guide cover body has two or more blade openings and base openings, and a conveying interface is provided on the top of the wind turbine blade hub guide cover body; The gravity block is connected to the opening of the base of the wind turbine blade hub guide cover, and the aquaculture tank water-permeable door is connected to the blade opening; The delivery pipeline is connected to the delivery interface via a flange.

2. The sinking bottom culture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, It also includes a conveying sealing ring and a clamp, wherein the conveying sealing ring is disposed on the flange and the clamp is sleeved on the outside of the flange.

3. The sinking bottom culture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, Valves are installed on the delivery pipeline.

4. The sinking bottom aquaculture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, It also includes a float, which is disposed on the delivery pipeline.

5. The sinking bottom aquaculture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, The gravity block and the wind turbine blade hub guide cover are fixed by bolts.

6. The bottom culture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, The permeable door of the breeding box has a double-layer structure, with the mesh size of the outer permeable door being larger than that of the inner permeable door.

7. The bottom culture net cage using the decommissioned wind power hub guide cone according to claim 1, characterized in that, The bottom surface of the gravity block is equipped with claw-shaped ground spikes, which are arranged in a dot matrix.

8. A submerged aquaculture cage utilizing a decommissioned wind turbine hub guide cover as described in claim 1, characterized in that, The gravity block is equipped with a column, which is connected to the top of the wind turbine blade hub guide cover body.

9. The sinking bottom aquaculture net cage using the decommissioned wind power hub guide cone according to claim 8, characterized in that, The column is connected to the wind turbine blade hub guide cover body and has a hook on the outside.

Citation Information

Patent Citations

  • Gravity type net cage capable of sinking to bottom

    CN117178929A