Three-dimensional aquaculture device integrated with offshore wind turbine and integrated collection method

Abstract

The application discloses a three-dimensional culture device integrated with an offshore wind turbine and an integrated collection method, relates to the technical field of offshore culture, and the three-dimensional culture device is provided with fish culture components and shellfish culture components in the height direction of the offshore wind turbine foundation, and a shellfish harvesting component is arranged below the shellfish culture components; when the second lifting mechanism drives the shellfish harvesting component to move upwards, the harvesting teeth on the harvesting unit scrape the shellfish on the vertical rod, the shellfish on the vertical rod are scraped by the harvesting teeth, the shellfish scraped off are collected by the shellfish collection fishing net on the shellfish harvesting component, the shellfish are harvested simultaneously when the fishing net is collected, the collection efficiency is greatly improved, and the technical problem that the shellfish after culture cannot be collected when the fishing net is started in the prior device for realizing full-depth seawater culture along the offshore single-pile foundation, and the collection efficiency is low is solved.

Description

Technical Field

[0001] This invention relates to the technical field of marine aquaculture, and in particular to a three-dimensional aquaculture device integrated into an offshore wind turbine and an integrated collection method. Background Technology

[0002] With the rapid development of the offshore wind power industry, a large number of offshore wind turbine foundations have been erected in the sea. These foundation structures occupy specific sea areas, creating an effect similar to artificial reefs. However, these space resources are currently not being effectively utilized. Traditional marine aquaculture, especially shellfish farming, often uses raft or net cage methods, occupying independent sea areas. This is costly, has poor resistance to wind and waves, and the harvesting process is cumbersome, usually requiring divers to work underwater, which presents problems such as high safety risks and short operating windows.

[0003] Existing technologies for aquaculture based on wind turbines, such as Chinese Patent No. CN106172122B, disclose a method and apparatus for marine aquaculture based on offshore wind farms. Paragraph 0057 of the specification describes that "when using the marine aquaculture apparatus, the second traction motor 62 and the third traction motor 63 are first used to lower the telescopic rope 92 and the second traction rope 93, opening the lower end of the net 4. The lighting 211 and camera installed on the support column 21 are then turned on. The lighting 211 attracts fish while the camera observes the fish population. Artificial reefs 5 installed at the bottom of the support column 21 and the monopile 1 are used to both process the support column 21 and the monopile 1, and to attract fish populations by utilizing their tackiness." The natural environment of the ocean allows for the natural, open-air aquaculture of fish, resulting in strong and plump fish. When the harvest season arrives in the upper, middle, and upper aquaculture zones, the second drive motor is activated first. The telescopic rope 92 is gradually pulled out from the closing ring, then passes around the second pulley 82 and is wound onto the second traction motor 62. During this process, the closing ring gradually closes and seals the lower end of the net 4. Then, the second traction motor 62, the third traction motor 63, and the first traction motor 61 are activated together, causing the lower and middle parts of the net 4 to rise together, along with the shellfish aquaculture cage 73, completing the net hauling process. Finally, the algae in the upper layer, the fish in the middle layer, the shellfish in the lower layer, and the fish and shrimp inside the net 4 are collected.

[0004] In the aforementioned device, after the aquaculture is completed, the motor needs to be driven to raise the lower and middle parts of the net together, along with the shellfish aquaculture cage, to complete the net-collecting step. Then, the algae in the upper layer, the fish in the middle layer, the shellfish in the lower layer, and the fish and shrimp in the net are collected separately. In this method, the shellfish cannot be collected at the same time as the net is collected, the collection time is extended, and the collection efficiency is low. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a three-dimensional aquaculture device and an integrated collection method integrated into an offshore wind turbine, which solves the technical problem of low collection efficiency in existing devices for full-depth seawater aquaculture on coastal areas with monopile foundations, where shellfish cannot be collected simultaneously with the start of net hauling after aquaculture is completed.

[0006] Technical Solution: A three-dimensional aquaculture device integrated into an offshore wind turbine includes a fish farming component, a shellfish farming component, a shellfish harvesting component, a first lifting mechanism, and a second lifting mechanism, all arranged at the height of the offshore wind turbine foundation. The fish farming component, shellfish farming component, and shellfish harvesting component are arranged sequentially from top to bottom. Both the first and second lifting mechanisms are located above the fish farming component. The fish farming component is connected to the first lifting mechanism, and the shellfish harvesting component is connected to the second lifting mechanism. The shellfish farming component includes a crossbar, which is perpendicularly connected to the offshore wind turbine foundation. The crossbar is connected to... A vertical rod for attaching cultured shellfish is provided, and the vertical rod is arranged parallel to the offshore wind turbine foundation. The shellfish harvesting assembly includes a fixing ring, which is slidably fitted onto the offshore wind turbine foundation. A harvesting unit is provided on the fixing ring, and the harvesting unit includes two umbrella ribs, which are spaced apart circumferentially along the fixing ring. A shellfish collection net is connected between the two umbrella ribs. Each umbrella rib is provided with a harvesting tooth for scraping shellfish. A horizontal bar and a vertical bar are arranged on the upward movement path of the harvesting tooth. When the second lifting mechanism moves the shellfish harvesting assembly upward, the harvesting tooth on the harvesting unit scrapes the shellfish on the vertical bar. The three-dimensional aquaculture device of this application has fish farming components and shellfish farming components arranged at the height of the coastal wind turbine foundation. At the same time, a shellfish harvesting component is set below the shellfish farming component. When the second lifting mechanism moves the shellfish harvesting component upward, the harvesting teeth on the harvesting unit scrape the shellfish on the vertical rod. The shellfish scraped off are collected by the shellfish collection net on the shellfish harvesting component. The shellfish are harvested simultaneously when the net is hauled in, which greatly improves the collection efficiency. This solves the technical problem in existing devices for full-depth seawater aquaculture on coastal monopile foundations where the shellfish cannot be collected at the same time as the net is hauled in, resulting in low collection efficiency.

[0007] This application sets up fish farming components and shellfish farming components along the height direction of the offshore wind turbine foundation, forming a layered three-dimensional aquaculture layout along the height direction of the offshore wind turbine foundation. The upper layer is the fish farming component and the lower layer is the shellfish farming component. The fish farming component extends downward from the sea level, and the shellfish farming component is located below the fish farming component and close to the seabed. The two layers maintain a vertical distance, realizing layered three-dimensional aquaculture on the same offshore wind turbine foundation.

[0008] Both the first and second lifting mechanisms can be winches, because winches can carry heavier materials, the lifting and lowering process is smooth and reliable, and they are relatively small in size.

[0009] Preferably, at least two crossbars are arranged circumferentially along the offshore wind turbine foundation, and correspondingly, at least two harvesting units are arranged circumferentially along the fixing ring. The crossbars provide a supporting foundation for the vertical bars. Arranging at least two crossbars circumferentially along the offshore wind turbine foundation increases the number of crossbars, thereby increasing the number of vertical bars for attaching aquaculture shellfish, which is beneficial for increasing the number of aquaculture shellfish. The arrangement of at least two harvesting units circumferentially along the fixing ring ensures that all vertical bars on the crossbars can be harvested by the corresponding harvesting units.

[0010] Preferably, the harvesting unit is fan-shaped, and the shellfish harvesting component is circular. This fan-shaped harvesting unit and circular shellfish harvesting component create a symmetrical structure composed of fan-shaped harvesting units, which helps ensure the stability of the entire shellfish harvesting component under stress.

[0011] Preferably, a central sliding ring and a central collar are slidably connected to the offshore wind turbine foundation. The central sliding ring is connected to any harvesting unit via a steel cable. The central sliding ring and the central collar are spaced apart and are respectively connected to a second lifting mechanism. The second lifting mechanism is connected to the central sliding ring via a second steel wire rope and to the central collar via a third steel wire rope. The second lifting mechanism can independently control the rise and fall of the central sliding ring using the second steel wire rope, and can independently control the rise and fall of the central collar using the third steel wire rope. The second lifting mechanism first raises the central sliding ring via the second steel wire rope. When the central sliding ring rises to the point where it is integrated with the central collar, the second lifting mechanism controls the central sliding ring and the central collar to move upward synchronously together via the second and third steel wire ropes.

[0012] Preferably, a vertical guide rail is connected to the offshore wind turbine foundation. The vertical guide rail contains a track, and the central collar and shellfish harvesting assembly contain rollers that slide in cooperation with the track. The first and last ends of the vertical guide rail are respectively provided with limiting blocks that stop the rollers. The limiting blocks include an upper limiting block at the top of the offshore wind turbine foundation and a lower limiting block above the shellfish farming assembly. The upper limiting block primarily prevents the central collar and central sliding ring from detaching from the offshore wind turbine during upward movement, while the lower limiting block prevents the shellfish harvesting assembly from contacting the seabed during downward movement.

[0013] Preferably, the bottom diameter and top diameter of the fish farming component are the same. When the second lifting mechanism moves the shellfish harvesting component upwards past the crossbar, the shellfish harvesting component is retracted to a size that allows it to pass through the fish farming component. This design allows for the rapid removal of the shellfish harvesting component from the offshore wind turbine foundation, which helps improve the efficiency of shellfish collection.

[0014] Preferably, the fish farming component is cylindrical, comprising an upper circular steel frame and a lower circular steel frame, which are fixedly connected by a connecting rod. The upper and lower circular steel frames are fitted onto the outer wall of the offshore wind turbine foundation. A circumferentially arranged fish collection net connects the upper and lower circular steel frames. The lower circular steel frame is coaxially arranged with a central collar. A bottom fishing net is provided between the lower circular steel frame and the central collar. The inner and outer sides of the bottom fishing net are respectively hooked to the lower circular steel frame and the central collar via fishing net hooks. When the inner and outer sides of the bottom fishing net are respectively hooked to the lower circular steel frame and the central collar via fishing net hooks, and the circumferentially arranged fish collection net connects the upper and lower circular steel frames, a closed fish farming space is formed. A circumferentially arranged first steel wire rope is also provided between the upper and lower circular steel frames. The upper circular steel frame is connected to a first lifting mechanism. The fish farming assembly, consisting of an upper circular steel frame, a lower circular steel frame, a bottom fishing net, and a fish collection net, is moved upwards via the first lifting mechanism. This allows for the rapid collection of fish.

[0015] An integrated collection method for the above-mentioned three-dimensional aquaculture device includes the following steps: Step 1: Activate the second lifting mechanism. The second lifting mechanism drives the central sliding ring upward, which in turn drives the umbrella ribs on the shellfish harvesting assembly to move vertically upward. At this time, the harvesting teeth on the umbrella ribs scrape the shellfish on the vertical rod to harvest them. Step 2: After the shellfish harvesting is completed, the umbrella ribs are retracted towards the offshore wind turbine foundation. When the umbrella ribs are fully retracted, the central sliding ring and the central collar are a whole. The first lifting mechanism on the offshore wind turbine foundation drives the fish farming component to move upward as a whole. When the bottom fishing net of the fish farming component is on the sea surface, the fish are collected. That is, when the bottom fishing net is exposed above the water, the fish suction pump hose is inserted into the fish farming component and the fish are sucked into the cabin by negative pressure. Step 3: After the fish are collected, disconnect the hooks on the bottom fishing net from the central loop and hang the bottom fishing net on the lower circular steel frame to form a vertical channel along the fish farming components for the shellfish harvesting components to pass through. Step four: The second lifting mechanism simultaneously pulls the central sliding ring and the central collar, thereby driving the shellfish harvesting component to move vertically upward along the offshore wind turbine foundation, so that the shellfish harvesting component rises through the open channel of the fish farming component and passes through the top opening of the fish farming component; Step 5: The second lifting mechanism hoists and moves the shellfish harvesting assembly to directly above the collection trough on the auxiliary workboat. High-pressure water guns are then used to spray any harvesting unit, causing the shellfish inside the harvesting unit to fall into the collection trough.

[0016] Preferably, after the shellfish harvesting is completed, the entire shellfish harvesting assembly is located above the crossbar, that is, after the shellfish harvesting is completed, the entire shellfish harvesting assembly completely passes over the crossbar to complete the scraping of the shellfish on the vertical bar below the crossbar, ensuring the thorough harvesting of the shellfish.

[0017] Beneficial effects: 1. The three-dimensional aquaculture device of this application is equipped with fish farming components and shellfish farming components along the height of the offshore wind turbine foundation. At the same time, a shellfish harvesting component is set below the shellfish farming components. When the second lifting mechanism moves the shellfish harvesting component upward, the harvesting teeth on the harvesting unit scrape the shellfish on the vertical rod. The shellfish scraped off are collected by the shellfish collection net on the shellfish harvesting component. The shellfish are harvested simultaneously when the net is pulled in, which greatly improves the collection efficiency.

[0018] 2. This application sets up fish farming components and shellfish farming components along the height direction of the offshore wind turbine foundation, forming a layered three-dimensional aquaculture layout along the height direction of the offshore wind turbine foundation. That is, the upper layer is the fish farming component and the lower layer is the shellfish farming component. The fish farming component extends downward from the sea level, and the shellfish farming component is located below the fish farming component and close to the seabed. The two layers maintain a vertical distance, realizing layered three-dimensional aquaculture on the same offshore wind turbine foundation. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the invention during the normal shellfish farming stage; Figure 2 This is a schematic diagram showing the location of the shellfish harvesting component during the normal shellfish farming stage of the present invention.

[0020] Figure 3 This is a schematic diagram showing the position of the shellfish harvesting component during the shellfish harvesting stage of the present invention.

[0021] Figure 4 This is a schematic diagram showing the position of the shellfish harvesting component during the shellfish harvesting completion stage of the present invention.

[0022] Figure 5 This is a schematic diagram of the shellfish harvesting component during the gathering stage of the present invention.

[0023] Figure 6 This is a schematic diagram of the overall process of the shellfish harvesting component during the gathering stage of the present invention.

[0024] Figure 7 This is a schematic diagram of the overall fish farming components of the present invention.

[0025] Figure 8 This is a schematic diagram of the fish farming assembly of the present invention after the fish collection net and bottom net have been removed.

[0026] Figure 9 For the present invention Figure 7 A bottom view.

[0027] Figure 10 This is a schematic diagram of the vertical guide rail, rollers, and limiting block of the present invention.

[0028] In the diagram: 1. Offshore wind turbine foundation; 2. Fish farming component; 3. Shellfish farming component; 4. Shellfish harvesting component; 5. Horizontal bar; 6. Vertical bar; 7. Fixing ring; 8. Umbrella rib; 9. Harvesting tooth; 10. Central sliding ring; 11. Central collar; 12. Seabed; 13. Upper circular steel frame; 14. Lower circular steel frame; 15. Fish collection net; 16. First steel wire rope; 17. Bottom fishing net; 18. Vertical guide rail; 19. Roller; 20. Limiting block. Detailed Implementation

[0029] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1: A three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the structure includes a fish farming component 2, a shellfish farming component 3, a shellfish harvesting component 4, a first lifting mechanism, and a second lifting mechanism, all arranged along the height of the offshore wind turbine foundation 1. The fish farming component 2, shellfish farming component 3, and shellfish harvesting component 4 are arranged sequentially from top to bottom. Both the first and second lifting mechanisms are located above the fish farming component 2. The fish farming component 2 is connected to the first lifting mechanism, and the shellfish harvesting component 4 is connected to the second lifting mechanism. The shellfish farming component 3 includes a crossbar 5, which is vertically connected to the offshore wind turbine foundation 1. A vertical support for attaching farmed shellfish is connected to the crossbar 5. The vertical rod 6 is arranged parallel to the offshore wind turbine foundation 1. The shellfish harvesting assembly 4 includes a fixing ring 7, which is slidably fitted onto the offshore wind turbine foundation 1. The fixing ring 7 is provided with a harvesting unit, which includes two umbrella ribs 8. The two umbrella ribs 8 are arranged at intervals along the circumference of the fixing ring 7. A shellfish collection net is connected between the two umbrella ribs 8. Each umbrella rib 8 is provided with a harvesting tooth 9 for scraping shellfish. The horizontal rod 5 and the vertical rod 6 are arranged on the upward movement path of the harvesting tooth 9. When the second lifting mechanism drives the shellfish harvesting assembly 4 to move upward, the harvesting tooth 9 on the harvesting unit scrapes the shellfish on the vertical rod 6. The three-dimensional aquaculture device of this application has a fish farming component 2 and a shellfish farming component 3 arranged at the height of the coastal wind turbine foundation 1. At the same time, a shellfish harvesting component 4 is arranged below the shellfish farming component 3. When the second lifting mechanism moves the shellfish harvesting component 4 upward, the harvesting teeth 9 on the harvesting unit scrape the shellfish on the vertical rod 6. The shellfish scraped off by the harvesting teeth 9 are collected by the shellfish collection net on the shellfish harvesting component 4. The shellfish are harvested simultaneously when the net is hauled in, which greatly improves the collection efficiency. This solves the technical problem in the existing devices for full-depth seawater aquaculture on a single pile foundation along the coast, where the shellfish cannot be collected at the same time as the net is started, resulting in low collection efficiency.

[0031] This application sets up fish farming components 2 and shellfish farming components 3 along the height direction of the offshore wind turbine foundation 1, forming a layered three-dimensional aquaculture layout along the height direction of the offshore wind turbine foundation 1. That is, the upper layer is the fish farming components 2 and the lower layer is the shellfish farming components 3. The fish farming components 2 extend downward from the sea level, and the shellfish farming components 3 are located below the fish farming components 2 and close to the seabed 12. The two layers maintain a vertical distance, realizing layered three-dimensional aquaculture on the same offshore wind turbine foundation 1.

[0032] Both the first and second lifting mechanisms can be winches, because winches can carry heavier materials, the lifting and lowering process is smooth and reliable, and they are relatively small in size.

[0033] Example 2, based on Example 1, provides a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, at least two crossbars 5 are arranged circumferentially along the offshore wind turbine foundation 1, and at least two harvesting units are arranged circumferentially along the fixing ring 7. The crossbars 5 provide a supporting foundation for the vertical bars 6. Arranging at least two crossbars 5 circumferentially along the offshore wind turbine foundation 1 is to maximize the number of crossbars 5, thereby increasing the number of vertical bars 6 used for attaching aquaculture shellfish, which is beneficial for increasing the number of aquaculture shellfish. The arrangement of at least two harvesting units circumferentially along the fixing ring 7 ensures that all vertical bars 6 on the crossbars 5 can be harvested by the harvesting units.

[0034] Example 3, based on Example 2, provides a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the harvesting unit is fan-shaped, and the shellfish harvesting component 4 is circular. The fan-shaped harvesting unit and the circular shellfish harvesting component 4 are designed to create a symmetrical structure composed of fan-shaped harvesting units, which helps ensure the stability of the entire shellfish harvesting component 4 under stress.

[0035] Example 4, based on Example 3, provides a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a central sliding ring 10 and a central collar 11 are slidably connected to the offshore wind turbine foundation 1. The central sliding ring 10 is connected to any harvesting unit via a steel cable. The central sliding ring 10 and the central collar 11 are spaced apart and are respectively connected to a second lifting mechanism. The second lifting mechanism is connected to the central sliding ring 10 via a second steel wire rope and to the central collar 11 via a third steel wire rope. The second lifting mechanism can independently control the rise and fall of the central sliding ring 10 using the second steel wire rope, and can independently control the rise and fall of the central collar 11 using the third steel wire rope. The second lifting mechanism first drives the central sliding ring 10 to rise via the second steel wire rope. When the central sliding ring 10 rises to the point where it is integrated with the central collar 11, the second lifting mechanism controls the central sliding ring 10 and the central collar 11 to move upward synchronously together via the second and third steel wire ropes. The central sliding ring 10 rising to become a whole with the central collar 11 means that after the shellfish harvesting is completed, the central sliding ring 10 continues to rise below the central collar 11, and the upper end of the central sliding ring 10 and the lower end of the central collar 11 are coaxially abutted together, and an axial limiting fit is formed through the abutment part.

[0036] Example 5, based on Example 4, provides a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 and Figure 10 As shown, a vertical guide rail 18 is connected to the offshore wind turbine foundation 1. The vertical guide rail 18 contains a track, and rollers 19 that slide in conjunction with the track are located within the central collar 11 and the shellfish harvesting assembly 4. Limiting blocks 20 that stop the rollers are located at the beginning and end of the vertical guide rail 18, respectively. The limiting blocks 20 include an upper limit block at the top of the offshore wind turbine foundation 1 and a lower limit block above the shellfish farming assembly 3. The upper limit block primarily prevents the central collar 11 and the central sliding ring 10 from detaching from the offshore wind turbine during upward movement, while the lower limit block prevents the shellfish harvesting assembly 4 from contacting the seabed during downward movement.

[0037] Example 6: Based on any one of Examples 1-5, a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the bottom diameter and top diameter of the fish farming component 2 are the same. When the second lifting mechanism moves the shellfish harvesting component 4 upward past the crossbar 5, the shellfish harvesting component 4 is retracted to a size that allows it to pass through the fish farming component 2. This design is intended to enable the shellfish harvesting component 4 to be removed from the offshore wind turbine foundation 1 quickly, thereby improving the efficiency of shellfish collection.

[0038] Example 7, based on Example 6, provides a three-dimensional aquaculture device integrated into an offshore wind turbine, such as... Figure 1 , Figure 7 , Figure 8 and Figure 9 As shown, the fish farming component 2 is cylindrical and includes an upper circular steel frame 13 and a lower circular steel frame 14. The upper circular steel frame 13 and the lower circular steel frame 14 are fixedly connected by a connecting rod. The upper circular steel frame 13 and the lower circular steel frame 14 are fitted onto the outer wall of the offshore wind turbine foundation 1. A circumferentially arranged fish collection net 15 is provided between the upper circular steel frame 13 and the lower circular steel frame 14. The lower circular steel frame 14 is coaxially arranged with the central collar 11, and a [missing information - likely a design feature] is provided between the lower circular steel frame 14 and the central collar 11. A bottom fishing net 17 is attached to a lower circular steel frame 14 and a central collar 11 via hooks on its inner and outer sides. When the bottom fishing net 17 is attached to the lower circular steel frame 14 and the central collar 11 via hooks, and a circumferentially arranged fish-collecting net 15 is provided between the upper circular steel frame 13 and the lower circular steel frame 14, a closed fish-raising space is formed. A circumferentially arranged first steel wire rope 16 is also provided between the upper circular steel frame 13 and the lower circular steel frame 14. The upper circular steel frame 13 is connected to a first lifting mechanism. The first lifting mechanism moves the fish-raising assembly 2, consisting of the upper circular steel frame 13, the lower circular steel frame 14, the bottom fishing net 17, and the fish-collecting net 15, upwards as a whole, facilitating the rapid collection of fish.

[0039] In Example 7, after the aquaculture is completed, the second lifting mechanism is activated. The second lifting mechanism drives the central sliding ring 10 to move upward, and the central sliding ring 10 drives the umbrella ribs 8 on the shellfish harvesting assembly 4 to move vertically upward. At this time, the harvesting teeth 9 on the umbrella ribs 8 scrape the shellfish on the vertical rod 6. After the shellfish harvesting is completed, the umbrella ribs 8 retract towards the offshore wind turbine foundation 1. When the umbrella ribs 8 are fully retracted, the central sliding ring 10 and the central collar 11 are a whole. The first lifting mechanism on the offshore wind turbine foundation 1 drives the fish farming assembly 2 to move upward as a whole. When the bottom fishing net of the fish farming assembly 2 is above the sea level, fish are collected. That is, when the bottom fishing net is exposed above the water, the fish suction pump hose is inserted into the fish farming assembly 2, and the fish are sucked into the cabin using negative pressure. The fishing net hooks on the bottom fishing net are disconnected from the central collar 11, and the bottom fishing net is hung on the lower circular steel frame, forming a vertical channel along the fish farming component 2 for the shellfish harvesting component 4 to pass through. The second lifting mechanism simultaneously pulls the central sliding ring 10 and the central collar 11, thereby driving the shellfish harvesting component 4 to move vertically upward along the offshore wind turbine foundation 1, so that the shellfish harvesting component 4 rises through the open channel of the fish farming component 2 and passes through the top opening of the fish farming component 2. The second lifting mechanism hoists and moves the shellfish harvesting component 4 as a whole to directly above the collection tank on the auxiliary work boat, and uses a high-pressure water gun to spray any harvesting unit, causing the shellfish in the harvesting unit to fall into the collection tank, thus completing the collection of fish and shellfish in this application.

[0040] Example 8, based on any one of Examples 1 to 7, provides an integrated collection method for the above-mentioned three-dimensional aquaculture device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it includes the following steps: Step 1: Activate the second lifting mechanism. The second lifting mechanism drives the central sliding ring 10 to move upward. The central sliding ring 10 drives the umbrella ribs 8 on the shellfish harvesting assembly 4 to move vertically upward. At this time, the harvesting teeth 9 on the umbrella ribs 8 scrape the shellfish on the vertical rod 6 to harvest the shellfish. Step 2: After the shellfish harvesting is completed, the umbrella ribs 8 are retracted towards the offshore wind turbine foundation 1. When the umbrella ribs 8 are fully retracted, the central sliding ring 10 and the central collar 11 are a whole. The first lifting mechanism on the offshore wind turbine foundation 1 drives the fish farming component 2 to move upward as a whole. When the bottom fishing net 17 of the fish farming component 2 is on the sea surface, the fish are collected. That is, when the bottom fishing net 17 is exposed above the water, the fish suction pump hose is inserted into the fish farming component 2 and the fish are sucked into the cabin by using negative pressure. Step 3: After the fish are collected, the fishing net hook on the bottom fishing net 17 is disconnected from the central loop 11, and the bottom fishing net 17 is hung on the lower circular steel frame 14, forming a vertical channel along the fish farming component 2 for the shellfish harvesting component 4 to pass through. Step four: The second lifting mechanism simultaneously pulls the central sliding ring 10 and the central collar 11, thereby driving the shellfish harvesting component 4 to move vertically upward along the offshore wind turbine foundation 1, so that the shellfish harvesting component 4 rises through the open channel of the fish farming component 2 and passes through the top opening of the fish farming component 2. Step 5: The second lifting mechanism hoists and moves the shellfish harvesting assembly 4 as a whole to the top of the collection trough on the auxiliary workboat. High-pressure water guns are used to spray any harvesting unit, causing the shellfish inside the harvesting unit to fall into the collection trough.

[0041] Example 9, based on Example 8, provides an integrated collection method for the above-mentioned three-dimensional aquaculture device, such as... Figure 4 As shown, after the shellfish harvesting is completed, the entire shellfish harvesting assembly 4 is located above the horizontal bar 5. That is, after the shellfish harvesting is completed, the entire shellfish harvesting assembly 4 completely passes over the horizontal bar 5, completing the scraping of the shellfish on the vertical bar 6 below the horizontal bar 5, ensuring the thorough harvesting of the shellfish.

[0042] In Example 9, the second lifting mechanism is first activated, which moves the central sliding ring 10 upward. The central sliding ring 10 then moves the umbrella ribs 8 on the shellfish harvesting assembly 4 vertically upward. At this time, the harvesting teeth 9 on the umbrella ribs 8 scrape the shellfish on the vertical rod 6 to harvest them. After the shellfish harvesting is completed, the umbrella ribs 8 retract towards the offshore wind turbine foundation 1. When the umbrella ribs 8 are fully retracted, the central sliding ring 10 and the central collar 11 become a single unit. The first lifting mechanism on the offshore wind turbine foundation 1 moves the fish farming assembly 2 upward as a whole. When the bottom fishing net of the fish farming assembly 2 is above the sea surface, fish are collected. That is, when the bottom fishing net is exposed above the water, the fish suction pump hose is inserted into the fish farming assembly 2, utilizing negative pressure. Fish are sucked into the hold; after the fish are collected, the hooks on the bottom fishing net are disconnected from the central loop 11, and the bottom fishing net is hung on the lower circular steel frame, forming a vertical channel along the fish farming component 2 for the shellfish harvesting component 4 to pass through; the second lifting mechanism simultaneously pulls the central sliding ring 10 and the central loop 11, thereby driving the shellfish harvesting component 4 to move vertically upward along the offshore wind turbine foundation 1, so that the shellfish harvesting component 4 rises through the open channel of the fish farming component 2 and passes through the top opening of the fish farming component 2; the second lifting mechanism hoists and moves the shellfish harvesting component 4 as a whole to directly above the collection trough on the auxiliary work boat, and uses a high-pressure water gun to spray any harvesting unit, causing the shellfish in the harvesting unit to fall into the collection trough.

[0043] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A three-dimensional aquaculture device integrated into an offshore wind turbine, characterized in that, The system includes a fish farming component (2), a shellfish farming component (3), a shellfish harvesting component (4), a first lifting mechanism, and a second lifting mechanism, all arranged along the height of the offshore wind turbine foundation (1). The fish farming component (2), the shellfish farming component (3), and the shellfish harvesting component (4) are arranged sequentially from top to bottom. The first lifting mechanism and the second lifting mechanism are both located above the fish farming component (2). The fish farming component (2) is connected to the first lifting mechanism, and the shellfish harvesting component (4) is connected to the second lifting mechanism. The shellfish farming component (3) includes a crossbar (5), which is vertically connected to the offshore wind turbine foundation (1). A vertical rod (6) for attaching farmed shellfish is connected to the crossbar (5). The vertical rod (6) is set parallel to the offshore wind turbine foundation (1); the shellfish harvesting assembly (4) includes a fixing ring (7), which is slidably sleeved on the offshore wind turbine foundation (1). The fixing ring (7) is provided with a harvesting unit, which includes two umbrella ribs (8). The two umbrella ribs (8) are set at intervals along the circumference of the fixing ring (7). A shellfish collection net is connected between the two umbrella ribs (8). Each umbrella rib (8) is provided with a harvesting tooth (9) for scraping shellfish. The horizontal rod (5) and the vertical rod (6) are set on the upward movement path of the harvesting tooth (9). When the second lifting mechanism drives the shellfish harvesting assembly (4) to move upward, the harvesting tooth (9) on the harvesting unit scrapes the shellfish on the vertical rod (6).

2. The integrated aquaculture device for offshore wind turbines according to claim 1, characterized in that, At least two crossbars (5) are arranged along the circumference of the offshore wind turbine foundation (1), and at least two harvesting units are arranged along the circumference of the fixed ring (7).

3. The integrated aquaculture device for offshore wind turbines according to claim 2, characterized in that, The harvesting unit is fan-shaped, and the shellfish harvesting component (4) is circular.

4. The integrated aquaculture device for offshore wind turbines according to claim 3, characterized in that, The offshore wind turbine foundation (1) is slidably connected to a central sliding ring (10) and a central collar (11). The central sliding ring (10) is connected to any harvesting unit via a steel cable. The central sliding ring (10) and the central collar (11) are spaced apart. The central sliding ring (10) and the central collar (11) are respectively connected to the second lifting mechanism.

5. The integrated aquaculture device for offshore wind turbines according to claim 4, characterized in that, The offshore wind turbine foundation (1) is connected to a vertical guide rail (18), which has a track inside. The central collar (11) and the shellfish harvesting assembly (4) are equipped with rollers (19) that slide with the track. The first and last ends of the vertical guide rail (18) are respectively equipped with limiting blocks (20) that stop with the rollers (19).

6. The integrated aquaculture device for offshore wind turbines according to any one of claims 1 to 5, characterized in that, The bottom diameter and top diameter of the fish farming component (2) are the same. When the second lifting mechanism drives the shellfish harvesting component (4) to move upward and pass over the crossbar (5), the shellfish harvesting component (4) is retracted to a size that can pass through the fish farming component (2).

7. The integrated aquaculture device for offshore wind turbines according to claim 6, characterized in that, The fish farming component (2) is cylindrical and includes an upper circular steel frame (13) and a lower circular steel frame (14). The upper circular steel frame (13) and the lower circular steel frame (14) are fixedly connected by a connecting rod. The upper circular steel frame (13) and the lower circular steel frame (14) are fitted onto the outer wall of the offshore wind turbine foundation (1). The upper circular steel frame (13) and the lower circular steel frame (14) are connected by a circumferentially arranged fish collection net (15). The lower circular steel frame (14) is coaxially arranged with the central collar (11). A connection is provided between the lower circular steel frame (14) and the central collar (11). The bottom fishing net (17) is connected to the lower circular steel frame (14) and the central collar (11) respectively via fishing net hooks on the inner and outer sides. When the bottom fishing net (17) is connected to the lower circular steel frame (14) and the central collar (11) respectively via fishing net hooks, and the upper circular steel frame (13) and the lower circular steel frame (14) are connected by a fish collection net (15) arranged in a circumferential direction, a closed fish farming space is formed. The upper circular steel frame (13) and the lower circular steel frame (14) are also connected by a first steel wire rope (16) arranged in a circumferential direction. The upper circular steel frame (13) is connected to the first lifting mechanism.

8. An integrated collection method for the three-dimensional aquaculture device according to any one of claims 1 to 7, characterized in that, The steps include the following: Step 1: Activate the second lifting mechanism. The second lifting mechanism drives the central sliding ring (10) to move upward. The central sliding ring (10) drives the umbrella ribs (8) on the shellfish harvesting assembly (4) to move vertically upward. At this time, the harvesting teeth (9) on the umbrella ribs (8) scrape the shellfish on the vertical rod (6) to harvest the shellfish. Step 2: After the shellfish harvesting is completed, the umbrella ribs (8) are retracted towards the offshore wind turbine foundation (1). When the umbrella ribs (8) are fully retracted, the central sliding ring (10) and the central collar (11) are a whole. The first lifting mechanism on the offshore wind turbine foundation (1) drives the fish farming component (2) to move upward as a whole. When the bottom net (17) of the fish farming component (2) is on the sea surface, the fish are collected. Step 3: After the fish are collected, the hook on the bottom fishing net (17) is disconnected from the central loop (11), and the bottom fishing net (17) is hung on the lower circular steel frame (14), forming a vertical channel along the fish farming component (2) for the shellfish harvesting component (4) to pass through. Step 4: The second lifting mechanism simultaneously pulls the central sliding ring (10) and the central collar (11), thereby driving the shellfish harvesting component (4) to move vertically upward along the offshore wind turbine foundation (1), so that the shellfish harvesting component (4) rises through the open channel of the fish farming component (2) and passes through the top opening of the fish farming component (2); Step 5: The second lifting mechanism hoists and moves the shellfish harvesting assembly (4) as a whole to the top of the collection trough on the auxiliary work boat. High-pressure water guns are used to spray any harvesting unit, causing the shellfish in the harvesting unit to fall into the collection trough.

9. The integrated collection method according to claim 8, characterized in that, Once the shellfish harvesting is complete, the entire shellfish harvesting assembly (4) is positioned above the crossbar (5).

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