Aquaculture net cage of offshore wind power foundation, working method of aquaculture net cage and offshore wind power jacket

Abstract

The invention discloses an aquaculture net cage of an offshore wind power foundation, a working method of the aquaculture net cage and an offshore wind power jacket, and belongs to the technical field of offshore wind power jacket foundations.The aquaculture net cage comprises a netting forming an aquaculture cavity, the top of the netting is open and connected with a working platform, and the bottom of the netting is connected with a rigid frame; the working platform is connected with the rigid frame through a plurality of frame lifting steel ropes, the netting is provided with a plurality of tensioning assemblies, each tensioning assembly comprises a netting tensioning rope and a pulley, after the netting tensioning rope movably penetrates through the pulley, one end of the netting tensioning rope is connected to the rigid frame, the other end of the netting tensioning rope is connected to the working platform, and the netting tensioning rope is provided with a dismounting part. Spatial reuse with an offshore wind power jacket can be realized, the culture net is convenient to fold and unfold, the structure is relatively stable after installation and adapts to different offshore weathers, and the maintenance cost is reduced through the structural design of flexible lifting and flexible disassembly. The offshore wind power jacket auxiliary facility with environmental adaptability and maintenance convenience is formed.

Description

Technical Field

[0001] The invention belongs to the technical field of jacket foundations for offshore wind power, and particularly relates to a fish farming cage for an offshore wind power foundation, a working method thereof, and an offshore wind power jacket. Background Art

[0002] Stratified sea use and three-dimensional development have become important directions for the development of the marine economy. The water quality in the deep sea area is excellent, the water flow exchange conditions are good, and the quality of farmed fish is better. At present, seawater aquaculture is gradually moving towards the deep sea. For aquaculture in the deep sea area, in order to achieve better economic benefits, large fish farming cages need to be configured. However, at present, the fish harvesting of fish farming cages mainly relies on manual netting, with low efficiency and a short operation window time. In order to improve the efficiency of deep sea aquaculture, it is necessary to develop fish farming cages with automatic fish harvesting functions. The compatibility of sea use between offshore wind power and marine ranching is relatively good.

[0003] As an improvement, at present, for offshore wind power foundations, some auxiliary structures for seawater aquaculture have emerged. By configuring fish farming structures on some parts of the wind turbine jacket, fish farming and capture are carried out. However, at present, for the fish farming structures of such offshore wind power jackets, in order to ensure the stability of the structure, there are generally more fixed connection methods, resulting in low convenience for collection and placement, insufficient structural rationality, and inability to efficiently utilize the area of the offshore wind power jacket, leading to low efficiency in aquaculture or capture. Summary of the Invention

[0004] The invention provides a fish farming cage for an offshore wind power foundation, a working method thereof, and an offshore wind power jacket, aiming to solve the problems that the fish farming structure of the current offshore wind power jacket has insufficient structural rationality, low convenience for collection and placement, inability to efficiently utilize the area of the offshore wind power jacket, and low efficiency in aquaculture or capture.

[0005] To achieve the above object, the invention adopts the following technical solutions: The invention provides a fish farming cage for an offshore wind power foundation, which can be configured on a jacket foundation, wherein: The fish farming cage includes a netting forming a farming cavity. The top of the netting is open and connected to a working platform, and the bottom is connected to a rigid frame. The working platform is connected to the rigid frame through a plurality of frame lifting steel ropes. Each frame lifting steel rope penetrates through and extends out of the working platform at one end located on the working platform. The netting is provided with a plurality of tensioning components corresponding to the jacket foundation. Each tensioning component includes a netting tensioning rope and a pulley. The pulley can be fixed on the jacket foundation. The netting tensioning rope passes through the pulley and is connected to the rigid frame at one end and the working platform at the other end. The netting tensioning rope is provided with a disassembly and assembly part. When the frame lifting steel rope is connected to an external device, the disassembly and assembly part disassembles the tensioning assembly, and the external device can drive the rigid frame and the netting to lift and lower by taking in and paying out the frame lifting steel rope.

[0006] In some embodiments, the netting is detachably connected to the working platform and the rigid frame.

[0007] Furthermore, the netting is connected to the working platform and the rigid frame through a connecting unit. The connecting unit includes a plurality of connecting pieces, and each connecting piece includes a flexible tensioning steel rope and a first shackle disposed on the flexible tensioning steel rope.

[0008] Furthermore, the first shackle is a detachable connecting piece, and the detachable connecting piece is used to fix the netting to the preset connection points of the rigid frame and the working platform.

[0009] In some embodiments, the disassembly and assembly part includes a second shackle, and the second shackle can tension or break the netting tensioning rope.

[0010] In some embodiments, the rigid frame is a rectangular frame, and the rigid frame is made of a material with a density not greater than that of seawater.

[0011] In some embodiments, the number of netting tensioning ropes is set to four to eight, and an external device connection buckle is provided at the top of the netting tensioning rope.

[0012] In some embodiments, the working platform is provided with a plurality of winch connection buckles.

[0013] The present invention also provides a working method for the aquaculture cage of the offshore wind power foundation, including the following steps: Releasing the net: Driving the rigid frame and the netting to descend integrally by taking in and paying out the frame lifting steel rope through an external device, and placing them into the corresponding area of the jacket foundation; Connecting the netting to the working platform and the rigid frame; Fixing the netting on the jacket foundation through the tensioning assembly, and adjusting through the netting tensioning rope to form an aquaculture cavity with the netting; Retracting the net: Operating the disassembly and assembly part to disassemble the connection between the netting tensioning rope and the pulley and the working platform; Tightening the frame lifting steel rope through connecting an external device to drive the rigid frame and the netting to rise; When the rigid frame is lifted to the water surface, separating the netting from the rigid frame, and collecting the disassembled netting.

[0014] The present invention also provides an offshore wind power jacket, and the offshore wind power jacket includes the aquaculture cage of the offshore wind power foundation.

[0015] Compared with the prior art, the aquaculture cage of the offshore wind power foundation, its working method, and the offshore wind power jacket of the present invention have the following beneficial effects: The aquaculture cage of a marine wind power foundation according to the present invention realizes the spatial composite utilization of marine wind power facilities and aquaculture functions by directly configuring the aquaculture cage on a jacket foundation, significantly reducing the cost of occupying marine space. At the same time, it shares the structural stability of the jacket foundation and reduces the investment in repeated construction. The linkage design between the frame lifting steel ropes and external equipment enables the cage to have the ability of vertical lifting. The present invention adjusts the depth of the cage according to the growth requirements of different fish species or seasonal temperature changes to optimize the aquaculture environment. When the environment is harsh, the cage can be lifted to a safe water layer to reduce the impact of water body on the net and aquaculture organisms. The lifting function simplifies the operation processes such as cage maintenance and fish harvesting and reduces the need for diving operations. The present invention, through the combined design of pulleys and tension ropes, offsets the deformation of the net caused by the impact of water flow through the pre-tension distribution of multiple tension ropes to maintain the stability of the aquaculture cavity volume. The disassembly parts enable the quick release of the tensioning system, facilitating the overall lifting or disassembly of the cage. Through reasonable structural design, the present invention forms an auxiliary facility for a marine wind power jacket with environmental adaptability and maintenance convenience, which has certain practical significance. Description of the Drawings

[0016] The accompanying drawings in the specification are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] Figure 1 It is a schematic structural diagram of the aquaculture cage of the marine wind power foundation according to the present invention, its working method, and the aquaculture cage in the marine wind power jacket. Figure 2 It is a schematic structural diagram of the aquaculture cage of the marine wind power foundation according to the present invention, its working method, and the aquaculture cage in the net-lifting state in the marine wind power jacket. Figure 3 It is a schematic structural diagram of the aquaculture cage of the marine wind power foundation according to the present invention, its working method, and the aquaculture cage in the first net-changing state in the marine wind power jacket. Figure 4 It is a schematic structural diagram of the aquaculture cage of the marine wind power foundation according to the present invention, its working method, and the aquaculture cage in the second net-changing state in the marine wind power jacket. Figure 5 It is a schematic structural diagram of the marine wind power jacket with an aquaculture cage of the marine wind power foundation according to the present invention, its working method.

[0018] Among them, 1. Net, 2. Working platform, 3. Rigid frame, 4. Frame lifting steel rope, 5. Net tension rope, 6. Pulley, 7. Flexible tensioning wire rope, 8. First shackle, 9. Second shackle, 10. External equipment connection buckle, 11. Winch connection buckle, 12. Jacket cross brace, 13. Tower barrel, 14. Machine head. Detailed implementation mode

[0019] To make the objectives, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0020] 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 claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0023] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0024] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] How to improve the structure of the aquaculture cage on the offshore wind power jacket to solve the spatial coordination problem between the offshore wind power foundation and the aquaculture cage, and construct an offshore aquaculture cage infrastructure with environmental adaptability and maintenance convenience.

[0026] Based on this, as Figure 1 and Figure 2 shown, the present invention provides an aquaculture cage that can be configured on a jacket foundation, wherein: the aquaculture cage includes a netting 1 that forms an aquaculture cavity, the top of the netting 1 is open and connected to a working platform 2, and the bottom is connected to a rigid frame 3. The working platform 2 is connected to the rigid frame 3 by a plurality of frame lifting steel ropes 4, and each frame lifting steel rope 4 movably penetrates and extends out of the working platform 2 at the end located on the working platform 2; The netting 1 is provided with a plurality of tensioning components corresponding to the jacket foundation. Each tensioning component includes a netting tensioning rope 5 and a pulley 6. The pulley 6 can be fixed to the jacket foundation. One end of the netting tensioning rope 5 movably penetrates through the pulley 6 and is connected to the rigid frame 3, and the other end is connected to the working platform 2. The netting tensioning rope 5 is provided with a disassembly and assembly member; When the frame lifting steel rope 4 is connected to an external device, the disassembly and assembly member disassembles the tensioning component, and the external device can drive the rigid frame 3 and the netting 1 to lift by winding and unwinding the frame lifting steel rope 4.

[0027] In the aquaculture cage of the offshore wind power foundation of the present invention, the netting 1 forms an aquaculture cavity, the top is open and connected to the working platform 2, and the bottom is fixed to the rigid frame 3. Through flexible design, it can adapt to the dynamic environment of seawater. The working platform 2 serves as the central structure for operation and is connected to the rigid frame 3 through the frame lifting steel rope 4 to realize the lifting control of the netting 1. The rigid frame 3 serves as the supporting structure at the bottom. By changing the relative position relationship between the working platform 2 and the rigid frame 3 through lifting the frame lifting steel rope 4, the shape of the netting 1 is ensured to be stable, and an area for long-term aquaculture of offshore fish can be formed. The tensioning component is composed of a netting tensioning rope 5 and a pulley 6. The tension of the netting tensioning rope 5 is adjusted through the pulley 6 to position the netting 1 within the area of the offshore jacket foundation. In addition, the disassembly and assembly member is used to quickly disconnect the connection of the tensioning component, facilitating the disassembly of the netting.

[0028] The present invention ensures that the netting 1 maintains its shape under the impact of ocean currents through the cooperation of the rigid frame 3 and the tensioning rope 5, avoiding deformation or damage. The frame lifting steel rope 4 is connected to an external device to realize the automation of the lifting of the netting 1, reducing manual intervention. Among them, in actual working conditions, the external device can be but is not limited to a winch. The present invention can be directly integrated into the offshore wind power jacket foundation, can be flexibly disassembled and assembled, saves sea use space, and realizes the three-dimensional development of wind energy and aquaculture.

[0029] In some embodiments, after the present invention is installed in the jacket foundation of the offshore wind power, the netting tension rope 5 can dynamically adjust the tension through the pulley 6 to prevent the netting 1 from being torn due to water flow overload. The rigid frame 3 adopts a buoyancy balance design and does not require an additional buoyancy device when lifted to the water surface.

[0030] Furthermore, in the aquaculture cage of the offshore wind power foundation of the present invention, the netting 1 is detachably connected to the working platform 2 and the rigid frame 3. When the netting 1 is damaged, it can be quickly disassembled and replaced, reducing the downtime and supporting the flexible replacement of different specifications of the netting 1 to adapt to the aquaculture needs of different fish. For example, in different climatic environments, the maintenance personnel can quickly disassemble and replace the netting 1.

[0031] Specifically, in the aquaculture cage of the offshore wind power foundation of the present invention, the netting 1 is connected to the working platform 2 and the rigid frame 3 through a connecting unit. The connecting unit includes a plurality of connecting members, and each connecting member includes a flexible tensioning wire rope 7 and a first shackle 8 disposed on the flexible tensioning wire rope 7. The present invention can disperse stress through the flexible tensioning wire rope 7 and provide a detachable connection point through the first shackle 8. The flexible tensioning wire rope 7 reduces local stress concentration and can extend the service life of the netting 1. The first shackle 8 can be designed as a standard part, and the operator can complete the connection or separation conveniently and quickly.

[0032] In some embodiments, the flexible tensioning wire rope 7 of the aquaculture cage of the present invention can, but is not limited to, adopt a high-toughness polyethylene material, which can withstand repeated bending and seawater corrosion.

[0033] Further preferably, the first shackle 8 of the present invention is a detachable connecting member, and the detachable connecting member is used to fix the preset connection points of the netting 1 to the rigid frame 3 and the working platform 2. The preset connection points of the present invention are located at the key positions of the rigid frame 3 and the working platform 2. The preset connection points ensure that the netting 1 is evenly stressed during disassembly and prevent accidental detachment. The unified connection point design simplifies the operation process and improves the efficiency. For example, the connection points can be marked to facilitate the quick positioning of divers in a low visibility environment.

[0034] In some embodiments, in the aquaculture cage of the offshore wind power foundation of the present invention, the disassembly and assembly member includes a second shackle 9, and the second shackle 9 can tension or break the netting tension rope 5. The second shackle 9 is used to tension or disconnect the netting tension rope 5. The second shackle 9 can be flexibly switched between the tensioned state for aquaculture and the disconnected state for netting replacement. When disconnected, part of the connection is retained to prevent the out-of-control drift of the netting 1. In some specific working conditions, such as the second shackle 9 can, but is not limited to, adopt a corrosion-resistant stainless steel material to ensure the reliability of underwater use.

[0035] Furthermore, the rigid frame 3 of the present invention is a rectangular frame, and the rigid frame 3 is made of a material with a density not greater than that of seawater. The material density of the rigid frame 3 is not greater than that of seawater, such as aluminum alloy or composite material, to achieve buoyancy balance. The material density design ensures that the rigid frame 3 naturally floats to the water surface during lifting. The rectangular frame 3 provides uniform support force to prevent the netting 1 from deforming due to local stress.

[0036] The netting tension ropes 5 of the present invention are provided with four to eight pieces, and an external device connection buckle 10 is arranged at the top of the netting tension ropes 5. The external device connection buckle 10 is configured at the top of the netting tension ropes 5. This can make the tension balanced. The uniform distribution of multiple netting tension ropes 5 ensures uniform force on all directions of the netting 1, and can adapt to complex ocean currents. The external connection buckle 10 can be flexibly adjusted to adapt to external devices. In actual working conditions, 8 ropes are used in deep sea areas, and each rope is distributed at an interval of 45 degrees to enhance the anti-torsion ability. In addition, in the aquaculture cage of the present invention, a plurality of winch connection buckles 11 are arranged on the working platform 2. Similarly, the winch connection buckles 11 are also for facilitating the connection of the winch for lifting and lowering operations. The present invention has equipment compatibility, and standardized winch connection buckles 11 can be used to adapt to multiple winch models, improving the equipment utilization rate. Through the winch connection buckles 11, the winch can be directly fixed on the working platform 2, reducing the risk of cable entanglement. The winch connection buckles 11 can be designed as a universal rotating structure to adapt to the winch pulling force at different angles.

[0037] The present invention also provides a working method for the aquaculture cage of an offshore wind power foundation, including the following steps: Releasing the net: The frame lifting steel rope 4 is retracted and released by an external device to drive the overall descent of the rigid frame 3 and the netting 1, and is placed into the corresponding area of the jacket foundation; the netting 1 is connected to the working platform 2 and the rigid frame 3; The netting 1 is fixed on the jacket foundation through the tensioning assembly, and the netting 1 is adjusted by the netting tension ropes 5 to form an aquaculture cavity; Retracting the net: Operate the disassembly and assembly part to disassemble the connection between the netting tension ropes 5 and the pulley 6 and the working platform 2; The frame lifting steel rope 4 is tightened by connecting an external device to drive the rigid frame 3 and the netting 1 to rise; when the rigid frame 3 is lifted to the water surface, the netting 1 is separated from the rigid frame 3, and the disassembled netting 1 is collected.

[0038] The present invention lowers and fixes the netting through an external device to form an aquaculture cavity; after disassembling the tensioning assembly, the netting is lifted, separated and transferred to the maintenance ship.

[0039] Such as Figure 5As shown in the figure, the present invention provides an offshore wind power jacket, and this offshore wind power jacket includes the aquaculture cage of the above-mentioned offshore wind power foundation. The offshore wind power jacket has a foundation part at the bottom, and the foundation part is a frame structure, forming an aquaculture area. The foundation part has a jacket cross brace 12, and a pulley 6 is arranged on the jacket cross brace 12. A tower barrel 13 and a nacelle 14 are successively arranged on the foundation part. The present invention utilizes the wind power foundation structure to save the construction cost of aquaculture, can realize the benefits of power generation and aquaculture in the same sea area, and improves the utilization rate of a unit sea area.

[0040] As Figure 3 and Figure 4 shown, in some embodiments, in the aquaculture cage of the offshore wind power foundation of the present invention, a flexible tensioning wire rope 7 is used to control the tension of the netting 1. A rigid frame 3 is arranged at the bottom of the netting 1, and the rigid frame 3 is connected to the bottom of the netting 1 and the netting tensioning rope 5 through a first shackle 8. A frame lifting wire rope 4 is tied to the rigid frame 3, which can cooperate with the netting tensioning wire rope 5 to lift the netting 1, and the shape of the bottom of the netting 1 of the netting 1 is fixed through the rigid frame 3. The overall rigid frame 3 is neutral (buoyancy = gravity or buoyancy is slightly greater than gravity), ensuring that the rigid frame 3 can float near the water surface reliably by itself when lifting the net, facilitating net replacement, and improving the operation efficiency.

[0041] The aquaculture cage of the offshore wind power foundation of the present invention; When lifting the netting 1: Connect a temporary rope to the upper end of the netting tensioning wire rope 5, and start the winch to loosen the netting tensioning wire rope 5. Use the winch to tighten the frame lifting wire rope 4 to drive the rigid frame 3 to rise. After the rigid frame 3 rises to the water surface, the winch stops.

[0042] When disassembling the netting 1: The gantry crane lowers the lifting rope and connects the lifting rope to the netting 1. After the rigid frame 3 rises to the water surface, the diver unfastens the shackle between the bottom of the net and the rigid frame 3. Disconnect the connection between the netting 1 and the winch. Disassemble the rigid frame 3, horizontally tie the netting 1, and further compress the volume. Use the gantry crane to lift the netting 1 out of the jacket foundation, and use the deck crane to assist in lifting the netting 1 to the operation and maintenance ship, and then perform subsequent operations.

[0043] The aquaculture cage of the offshore wind power foundation of the present invention, its working method, and the offshore wind power jacket realize the spatial reuse with the wind power foundation, reduce the cost of ocean development, the liftable system supports dynamic adjustment of the aquaculture depth, adapts to different weather conditions, and has a stable structure. The detachable design reduces the maintenance cost, constructs a better aquaculture environment through lifting the aquaculture, and has better practicability.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and does not impose any formal restrictions on the present invention. Any ordinary technical personnel in the industry can smoothly implement the present invention according to the description in the specification and the above description. Slight changes, modifications, and equivalent variations made by using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the substantial technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An aquaculture cage for an offshore wind power foundation, characterized in that The aquaculture cage can be configured on the jacket foundation, where: The aquaculture cage includes a netting (1) forming an aquaculture cavity. The top of the netting (1) is open and connected to a working platform (2), and the bottom is connected to a rigid frame (3). The working platform (2) is connected to the rigid frame (3) by a number of frame lifting steel ropes (4). Each frame lifting steel rope (4) passes through and extends out of the working platform (2) movably at one end located on the working platform (2). The netting (1) is provided with a number of tensioning components corresponding to the jacket foundation. Each tensioning component includes a netting tensioning rope (5) and a pulley (6). The pulley (6) can be fixed to the jacket foundation. The netting tensioning rope (5) passes through the pulley (6) movably and is connected to the rigid frame (3) at one end and the working platform (2) at the other end. The netting tensioning rope (5) is provided with a disassembly and assembly part. When the frame lifting steel rope (4) is connected to external equipment, the disassembly and assembly part disassembles the tensioning component, and the external equipment can drive the rigid frame (3) and the netting (1) to lift and lower by taking in and paying out the frame lifting steel rope (4).

2. The aquaculture cage for an offshore wind power foundation according to claim 1, wherein, The netting (1) is connected to the working platform (2) and the rigid frame (3) in a detachable manner.

3. The aquaculture cage for an offshore wind power foundation according to claim 2, characterized in that, The netting (1) is connected to the working platform (2) and the rigid frame (3) through a connection unit. The connection unit includes a number of connecting pieces. Each connecting piece includes a flexible tensioning steel rope (7) and a first shackle (8) arranged on the flexible tensioning steel rope (7).

4. The aquaculture cage of the offshore wind power foundation according to claim 3, wherein, The first shackle (8) is a detachable connecting piece, and the detachable connecting piece is used to fix the preset connection points of the netting (1) with the rigid frame (3) and the working platform (2).

5. The aquaculture cage of the offshore wind power foundation according to claim 1, characterized in that, The disassembly and assembly part includes a second shackle (9), and the second shackle (9) can tension or break the netting tensioning rope (5).

6. The aquaculture cage of the offshore wind power foundation according to claim 1, characterized in that, The rigid frame (3) is a rectangular frame, and the rigid frame (3) is made of a material with a density not greater than that of seawater.

7. The aquaculture cage for an offshore wind power foundation according to claim 1, characterized in that, The netting tensioning ropes (5) are provided in four to eight numbers, and an external equipment connection buckle (10) is arranged at the top of the netting tensioning ropes (5).

8. The aquaculture cage for an offshore wind power foundation according to claim 1, wherein, The working platform (2) is provided with a number of winch connection buckles (11).

9. The working method of the aquaculture cage of the offshore wind power foundation according to any one of claims 1-8, characterized in that, Including the following steps: Releasing the net: The external equipment takes in and pays out the frame lifting steel rope (4) to drive the rigid frame (3) and the netting (1) to descend as a whole, and places them in the corresponding area of the jacket foundation; connect the netting (1) to the working platform (2) and the rigid frame (3). Fix the netting (1) on the jacket foundation through the tensioning component, and adjust the netting (1) through the netting tensioning rope (5) to form an aquaculture cavity. Retrieving the net: Operate the disassembly and assembly part to disassemble the connection between the netting tensioning rope (5) and the pulley (6) and the working platform (2). Tighten the frame lifting steel rope (4) by connecting external equipment to drive the rigid frame (3) and the netting (1) to rise; when the rigid frame (3) is lifted to the water surface, separate the netting (1) from the rigid frame (3), and retrieve the disassembled netting (1).

10. An offshore wind power jacket, characterized in that, The offshore wind power jacket includes the aquaculture cage of the offshore wind power foundation according to any one of claims 1-8.

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