Rotary deep sea farming equipment and net cleaning method

Abstract

A kind of rotary deep sea aquaculture equipment and net cleaning method, the axis direction of its main structure is consistent with sea level and is provided with net and ballast tank, the number of ballast tank is greater than or equal to three, multiple ballast tanks are annularly distributed with the axis of main structure as center, one or more ballast tanks are filled with ballast water, so that the center of gravity of main structure is located in the middle cross section of main structure and deviates from the central axis of main structure;The rotating shaft fixed to the two ends of main structure coincides with the central axis of main structure;Pivot joint part in sea is rotationally connected with rotating shaft, and keeps the position of main structure in sea, so that local net is above water surface;Pipeline system arranged on main structure changes the distribution of ballast water in multiple ballast tanks, and then adjusts the position of center of gravity on middle cross section, so that main structure rotates with its own axis as center, realizes the rotation of aquaculture equipment by gravity driven mode, reduces maintenance cost and investment cost.

Description

Technical Field

[0001] The present invention relates to the technical field of marine fishery breeding equipment, in particular to a rotary deep-sea breeding equipment and a net cleaning method. Background Art

[0002] With the large-scale development of deep-sea aquaculture equipment, existing equipment has repeatedly experienced failures during pilot trials. A key reason is that the large-scale, high-density growth of marine organisms on nets and steel structures significantly increases the hydrodynamic loads on the equipment, ultimately leading to net damage and strut breakage. Long-term adsorption and erosion by organisms such as oysters can cause them to embed deeply into net cables and steel frames, remaining engaged even after death. This significantly alters the operational characteristics of aquaculture equipment, particularly affecting the hydrodynamic loads on nets and other aquaculture structures. This impact increases at varying rates with increasing adhesion.

[0003] There are currently two main types of effective marine bioremediation:

[0004] One method is to use underwater robots combined with path planning and other technologies to wash nets underwater. The equipment for this method is expensive and the maintenance cost is high, and a special place is needed to park the robot.

[0005] Secondly, by regularly exposing the net to the sun, the attachments will automatically fall off before they are deeply bitten. Existing equipment uses motor-driven or hydraulic-driven rotation of the net, which requires special high-power energy and the transmission structure is prone to failure.

[0006] The above two types of equipment for cleaning marine life from nets are inconvenient in terms of investment cost and maintenance cost. Summary of the Invention

[0007] In response to the shortcomings of the above-mentioned existing production technologies, the applicant provides a rotary deep-sea aquaculture equipment and a net cleaning method, thereby achieving the rotation of the aquaculture equipment through gravity drive, realizing regular net cleaning operations, and reducing maintenance costs and investment costs.

[0008] The technical solutions adopted in the present invention are as follows:

[0009] A rotary deep-sea aquaculture equipment comprising:

[0010] The main structure is a columnar frame structure, and the axis direction of the main structure is consistent with the sea level direction;

[0011] A net is provided on the main structure and forms a relatively closed breeding space inside the main structure;

[0012] Ballast tanks, each of which is provided on the main structure, the number of which is greater than or equal to three, and the plurality of ballast tanks being distributed in a ring shape centered on the axis of the main structure, and further comprising ballast water, the ballast water being located in one or more of the ballast tanks such that the center of gravity of the main structure is located in a mid-section of the main structure and offset from the central axis of the main structure;

[0013] Rotating shafts, the number of the rotating shafts being two and being fixed to both ends of the main structure respectively, and the axes of the rotating shafts coinciding with the central axis of the main structure;

[0014] a pivoting portion, the pivoting portion being located in the sea, the pivoting portion being rotatably connected to the rotating shaft and maintaining the position of the main structure in the sea so that a portion of the net is located above the water surface;

[0015] A piping system is provided on the main structure and is used to change the distribution of ballast water in the plurality of ballast tanks, thereby adjusting the position of the center of gravity on the middle cross section so that the main structure rotates around its own axis.

[0016] Its further technical solution is:

[0017] It also includes anchor foundations located on the seabed;

[0018] The pivotal portion is an anchor chain assembly, and the number of the anchor chain assemblies is two sets. One end of a single set of anchor chain assemblies is rotatably connected to the rotating shaft, and the other end of a single anchor chain assembly is connected to the anchoring foundation. The main structure is in a positive buoyancy state, and the main structure maintains its position in the sea under the mooring action of the pivotal portion.

[0019] The main structure includes a hollow frame located at both ends of the main structure. The hollow frame is an annular tubular structure. A support is provided at the center of the annular shape of the hollow frame. The rotating shaft is provided on the support. The internal space of the hollow frame is divided into a plurality of ballast tanks.

[0020] It also includes multiple radial connecting rods and axial connecting rods. The radial connecting rods are used to connect the hollow frame and the support members, and the axial connecting rods are used to connect two hollow frames to form the columnar frame structure.

[0021] The hollow frame is a regular polygon or a circle, and the volume of each ballast tank is equal.

[0022] Each ballast tank is divided into a plurality of compartments along the annular direction of the hollow frame.

[0023] The total amount of the ballast water remains unchanged, and the pipeline system includes a water pump, which is connected to multiple ballast tanks through the pipeline system.

[0024] It also includes a camera, which is installed on the main structure and is used to monitor the status of the breeding equipment.

[0025] The structure of the rotating shaft includes a connecting portion, a shaft portion and a blocking portion. The connecting portion, the shaft portion and the blocking portion are sequentially connected end to end to form a dumbbell-shaped structure. The shaft portion is rotatably connected to the pivot portion.

[0026] A double-pin main lock is installed at one end of the anchor chain assembly;

[0027] The structure of the double-pin main lock includes a U-shaped hoop and a first pin, the two ends of the first pin are respectively connected to the two ends of the U-shaped hoop, the U-shaped hoop and the first pin are enclosed to form a sleeve hole, and the sleeve hole is matched with the rotating shaft;

[0028] It also includes a second pin shaft, which is parallel to the first pin shaft and spaced apart from each other on the U-shaped hoop, and is connected to the anchor chain assembly.

[0029] A method for cleaning the nets of rotary deep-sea aquaculture equipment.

[0030] The main structure of the aquaculture equipment is provided with a rotating shaft at both ends, and the rotating shaft is rotatably mounted on a pivot portion located in the sea. A plurality of ballast tanks are respectively provided at both ends of the main structure, and the number is greater than or equal to three. The plurality of ballast tanks are provided on the main structure and are distributed in a ring shape with the axis of the rotating shaft as the center.

[0031] The net cleaning method comprises:

[0032] Step 1: Fill one or more ballast tanks with ballast water, and adjust the center of gravity of the main structure so that the center of gravity is located on a middle cross section of the main structure and deviates from the axis of the rotating shaft, and a portion of the net is located above the water surface;

[0033] Step 2: Pumping the ballast water in one ballast tank into another ballast tank that is not full of ballast water through the pipeline system, so that the distribution of the ballast water is continuous along the annular direction, while changing the position of the center of gravity on the middle cross section, and driving the main structure to rotate around the axis of the rotating shaft;

[0034] Step 3: After the rotation is completed, the part of the net below the water surface is above the water surface, and the net is cleaned;

[0035] Repeat steps 2 and 3 to clean the nets at different locations;

[0036] The angle of rotation of the main structure in step 2 is less than or equal to the central angle of the virtual circle line of the part of the net located on the water surface before the rotation.

[0037] The beneficial effects of the present invention are as follows:

[0038] The present invention has a compact and reasonable structure and is easy to operate. A plurality of ballast tanks distributed in a ring shape with the axis of the main structure as the center are provided on the main structure. The center of gravity of the main structure 1 is changed by changing the distribution of ballast water, thereby driving the aquaculture equipment to rotate, so that the nets at different parts are exposed to the water surface for net cleaning operations. In addition, it does not require a complex transmission structure and special power machinery, has a simple structure, and reduces maintenance costs and investment costs.

[0039] At the same time, the present invention also has the following advantages:

[0040] (1) The rotating shaft of the main structure is rotatably connected to the end of the anchor chain assembly. Under the mooring action of the anchor chain assembly, the positive buoyancy main structure keeps part of the net above the water surface. At the same time, the rotating shaft can rotate in the sleeve hole at the end of the anchor chain assembly, so that the rotation of the aquaculture equipment does not need to rely on a fixed part for support, reducing the complexity of the equipment. The two anchor chains present a double-point mooring configuration, which can ensure the free rotation of the main structure 1 while achieving stable mooring, ensuring the stable operation of the equipment in a deep sea environment, and having strong wind and wave resistance and mooring positioning capabilities.

[0041] (2) The hollow frame is a regular polygon or a circle, which is simple and easy to manufacture. At the same time, the volumes of the equally divided ballast tanks are equal, so that the ballast tanks are evenly distributed around the rotation axis, which facilitates the adjustment of the rotation angle of the main structure.

[0042] (3) The arrangement of compartments can precisely adjust the rotation angle of the main structure by transferring the ballast water in a compartment at a time. At the same time, it can also reduce the shaking degree of the ballast water in each ballast compartment during the rotation of the main structure, thereby achieving flexible and stable rotation of the main structure.

[0043] (4) By regularly and periodically rotating the aquaculture equipment, the nets located above the water surface are cleaned to remove marine organisms. The attachments are completely removed before they cause irreversible damage. This can effectively ensure that the hydrodynamic performance of the aquaculture equipment does not change, thereby ensuring the safety and reliability of the nets and the main structure.

[0044] (5) Maintaining and cleaning the net by rotating is easy to operate and has significant effects. It can effectively remove dirt and attachments on the net, maintaining the permeability and fishing performance of the net. At the same time, directly drying the net can also reduce the direct contact and wear of the net by the existing net washing method, thereby extending the service life of the net. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1Schematic diagram of the structure of the present invention (one embodiment).

[0046] Figure 2 It is a structural schematic diagram of the present invention (another embodiment).

[0047] Figure 3 It is a schematic diagram of the main structure of the present invention (front view).

[0048] Figure 4 It is a schematic diagram of the main structure of the present invention (side view).

[0049] Figure 5 for Figure 3 Cross-sectional view of section AA.

[0050] Figure 6 for Figure 3 A partial enlarged view of point B in the middle.

[0051] Figure 7 This is a schematic diagram of the external structure of the hollow frame of the present invention.

[0052] Figure 8 Schematic diagram of the rotation process of the main structure of the present invention (1).

[0053] Figure 9 Schematic diagram of the rotation process of the main structure of the present invention (2).

[0054] Figure 10 Schematic diagram of the rotation process of the main structure of the present invention (3).

[0055] in:

[0056] 1. Main structure; 11. Hollow frame; 12. Radial connecting rod; 13. Axial connecting rod; 14. Support member;

[0057] 2. Net clothes;

[0058] 3. Ballast tank; 30. Sub-compartment;

[0059] 4. Piping system;

[0060] 5. Rotating shaft; 501. Connecting portion; 502. Shaft portion; 503. Blocking portion;

[0061] 6. Double pin main lock; 600, sleeve hole; 601, U-shaped hoop; 602, first pin; 603, second pin;

[0062] 7. Pivot joint; 8. Anchor base; 9. Camera;

[0063] M, middle cross section. DETAILED DESCRIPTION

[0064] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0065] Example 1:

[0066] In view of the problem that the equipment for cleaning marine life on nets in the prior art has inconveniences in terms of investment cost and maintenance cost, this embodiment designs a method of driving the aquaculture equipment to rotate by gravity, thereby achieving regular net cleaning operations and reducing maintenance cost and investment cost.

[0067] like Figures 1-4 As shown, the rotary deep-sea aquaculture equipment of this embodiment includes:

[0068] The main structure 1 is a columnar frame structure, and the axis direction of the main structure 1 is consistent with the sea level direction;

[0069] The net 2 is arranged on the main structure 1 and forms a relatively closed breeding space inside the main structure 1;

[0070] Ballast tanks 3 are provided on the main structure 1. The number of ballast tanks 3 is greater than or equal to three, and the multiple ballast tanks 3 are distributed in a ring shape with the axis of the main structure 1 as the center. The ballast tanks 3 also contain ballast water. The ballast water is located in one or more ballast tanks 3 so that the center of gravity of the main structure 1 is located in the middle cross section M of the main structure 1 and is offset from the central axis of the main structure 1.

[0071] Rotating shafts 5, which are two in number and are fixed to both ends of the main structure 1, respectively. The axis of the rotating shafts 5 coincides with the central axis of the main structure 1;

[0072] The pivotal portion 7 is located in the sea and is rotatably connected to the rotating shaft 5 to maintain the position of the main structure 1 in the sea so that the partial net 2 is located above the water surface;

[0073] The piping system 4 is arranged on the main structure 1 and is used to change the distribution of ballast water in the multiple ballast tanks 3, thereby adjusting the position of the center of gravity on the middle cross section M, so that the main structure 1 rotates around its own axis.

[0074] Specifically, the frame structure of the main structure 1 is columnar as a whole, and has a large space inside, so that when the net 2 is wrapped around the outside of the main structure 1, a breeding space is formed inside the main structure 1.

[0075] The net 2 is made of ultra-high molecular weight polyethylene and has a density close to that of seawater. The net 2 is woven and fixed on the net hanging outfitting on the main structure 1.

[0076] The center of gravity of the ballast tank 3 is located at the middle cross section M of the main body structure 1, so that the ballast tank 3 is kept lying in the seawater, which facilitates the rotation of the main body structure 1; the ballast water in one or more ballast tanks 3 refers to the ballast water not completely filling all the ballast tanks 3, so that the center of the main body structure 1 deviates from the central axis position; the pipeline system 4 changes the distribution of the ballast water in the plurality of ballast tanks 3, so that the center of gravity and the overall mass distribution of the equipment change, and the gravity of the main body structure 1 itself generates a bending moment pushing force at the rotating shaft 5 during the balancing process, so that the entire main body structure 1 rotates around the rotating shaft 5. Compared with the driving mode applied from the rotating shaft 5, this driving force has smaller energy consumption, and the entire process does not require high-level motor driving or hydraulic driving; the rotation speed of the main body structure 1 is controlled by controlling the change speed of the distribution of the ballast water, and the rotation angle of the main body structure 1 is controlled by controlling the position of the ballast water on the main body structure 1.

[0077] Regarding the pivot connection part 7, it can be a platform located on the sea, such as Figure 2 As shown, the rotating shaft 5 is installed on the platform and can be located in the bearing on the connecting part of the platform. The gravity of the main body structure 1 itself can be greater than the buoyancy, and the local netting 2 is located above the water surface through the support of the platform.

[0078] The pipeline system 4 is a functional component for adjusting the ballast tank 3. As long as the water in one ballast tank 3 is reduced and the water in another ballast tank 3 is increased, the adjustment of the center of gravity can make the main body structure 1 rotate around its own axis.

[0079] After the main body structure 1 rotates by a certain angle, the position of the netting 2 located above the water surface is changed, and after multiple rotations, the entire netting 2 can realize the netting cleaning operation.

[0080] A plurality of ballast tanks 3 are arranged on the main body structure 1 in a ring shape around the axis of the main body structure 1. By changing the distribution of the ballast water, the center of gravity of the main body structure 1 is changed, and the aquaculture equipment is driven to rotate, so that different parts of the netting 2 are exposed to the water surface for netting cleaning operation. Moreover, no complex transmission structure or special power machinery is required, the structure is simple, and the maintenance and investment costs are reduced.

[0081] At the same time, the aquaculture equipment of the embodiment creates a green driving mode. The gradual change of gravity driving method means that the rotation of the aquaculture equipment can be realized without consuming a large amount of energy. Compared with the traditional energy driving mode, this method can greatly reduce the energy consumption, thereby reducing the impact on the environment. It not only has economic benefits, but also is friendly to the environment.

[0082] The aquaculture equipment of this embodiment can improve aquaculture efficiency and economic benefits, reduce labor intensity and management difficulty, and provide strong support for the development of the fishery industry. It can be applied to the aquaculture of different fish species. The rotation speed of the equipment can be flexibly controlled according to the marine environmental conditions, the characteristics of the aquacultured fish, and the biofouling conditions in the aquaculture area. This not only inhibits the growth of marine organisms, but also drives the aquacultured fish in the box to swim, improving their health.

[0083] Example 2:

[0084] In the first embodiment, a platform is used as the pivotal connection 7. The main structure 1 is set to a positive buoyancy state, that is, when the buoyancy in water is greater than the gravity, the pivotal connection 7 can be an anchor chain assembly, which is specifically achieved by the following scheme:

[0085] like Figure 1 As shown, the difference from the first embodiment is that the aquaculture equipment further includes an anchoring foundation 8 located on the seabed;

[0086] The pivotal portion 7 is an anchor chain assembly, and there are two sets of anchor chain assemblies. One end of a single set of anchor chain assemblies is rotatably connected to the rotating shaft 5, and the other end of the single anchor chain assembly is connected to the anchor foundation 8. The main structure 1 is in a positive buoyancy state, and the main structure 1 maintains its position in the sea under the mooring action of the pivotal portion 7.

[0087] Specifically, the anchor chain assembly adopts a combination of synthetic fiber cables, small-sized anchor chains and large-sized anchor chains, and is designed according to specific circumstances; the anchor foundation 8 has one end connected to the pivot part 7 and the other end embedded in the seabed geology. The configuration of the towing anchor, gravity anchor, etc. can be selected as needed.

[0088] Further, if Figure 4 As shown, the structure of the rotating shaft 5 includes a connecting portion 501, a shaft portion 502 and a blocking portion 503. The connecting portion 501, the shaft portion 502 and the blocking portion 503 are sequentially connected end to end to form a dumbbell-shaped structure, and the shaft portion 502 is rotationally connected to the pivot portion 7.

[0089] Specifically, a sleeve hole 600 is provided at the end of the anchor chain assembly, and the rotating shaft 5 is installed in the sleeve hole 600 , wherein the shaft portion 502 is rotatably connected to the sleeve hole 600 .

[0090] Further, if Figure 5-Figure 6 As shown, a double-pin main lock 6 is installed at one end of the anchor chain assembly;

[0091] The structure of the double-pin shaft main lock 6 comprises a U-shaped hoop 601, a first pin shaft 602, two ends of the first pin shaft 602 being connected to two ends of the U-shaped hoop 601 respectively, the U-shaped hoop 601 and the first pin shaft 602 forming a sleeve hole 600, the sleeve hole 600 being matched with the rotating shaft 5, and a second pin shaft 603, the second pin shaft 603 being arranged on the U-shaped hoop 601 in parallel with and spaced from the first pin shaft 602, and the second pin shaft 603 being connected with the anchor chain assembly.

[0092] Specifically, a thick ring pipe is sleeved on the first pin shaft 602 and the second pin shaft 603, the thick ring pipe on the first pin shaft 602 being used for supporting two ends of the U-shaped hoop 601, and the thick ring pipe on the second pin shaft 603 being used for connecting the anchor chain assembly.

[0093] The main body structure 1 of the cultivation equipment is kept in position in the sea by a mooring positioning system, and the key of the mooring positioning system lies in the design and installation of the mooring cable and the mooring component. The mooring positioning system of the cultivation equipment in the embodiment mainly comprises a mooring anchor (anchoring base 8), a mooring cable (anchor chain assembly) and a mooring component (double-pin shaft main lock 6). The mooring anchor is fixed to the seabed, the anchor chain is connected to the cultivation equipment through the double-pin shaft main lock 6 of the ring hoop connection structure, and after the equipment is in position, the mooring cable is extended and fixed to the seabed, there are two mooring cables, and the two-point distributed mooring is realized, so that the mooring positioning of the equipment is realized.

[0094] The synthetic fiber cable, the small-size anchor chain and the large-size anchor chain are comprehensively used in the embodiment, so that the entire mooring cable has small axial stiffness, the entire cultivation equipment can have a certain degree of freedom when subjected to extreme sea conditions, and the occurrence of peak load is reduced. Especially in the composite two-point mooring system, the horizontal stiffness is small in the case of cross sea, the system has the restoring force of the gravity type mooring system and the elasticity of the synthetic fiber cable, and has good mooring positioning capacity. In order to ensure the stable operation of the cultivation equipment in the sea, the mooring cable and the mooring component need to have certain strength and appropriate stiffness to ensure the safety and stability of the equipment.

[0095] The rotating shaft 5 of the main body structure 1 is rotationally connected to the end of the anchor chain assembly, under the mooring action of the anchor chain assembly, the main body structure 1 with the positive buoyancy keeps part of the net 2 above the water surface, and the rotating shaft 5 can rotate in the sleeve hole 600 at the end of the anchor chain assembly, so that the rotation of the cultivation equipment does not need to rely on a certain fixed part for support, the complexity of the equipment is reduced, the two anchor chains present a two-point mooring configuration, the free rotation of the main body structure 1 is ensured, and stable mooring is realized, so that the equipment can stably operate in the deep sea environment, and has strong wind and wave resistance and mooring positioning capacity.

[0096] In addition, the composite cable mooring method is used to maintain the position of the main structure 1 in the sea, so that the aquaculture equipment can flexibly adjust the direction and angle of the equipment according to different aquaculture needs and environmental conditions, making it more adaptable to the actual situation for cleaning marine organisms, improving aquaculture effects and economic benefits, and can be applied to aquaculture equipment applications across different sea areas.

[0097] Example 3:

[0098] On the basis of the first and second embodiments, the main structure 1 is optimized, and the ballast tanks 3 are preferably located at both ends of the main structure 1. This is to ensure the permeability of the net 2 on the one hand, and to facilitate the posture control of the main structure 1 on the other hand.

[0099] like Figure 3-Figure 4 As shown, the main structure 1 includes a hollow frame 11 located at both ends of the main structure 1. The hollow frame 11 is an annular tubular structure. A support member 14 is provided at the center of the annular portion of the hollow frame 11. A rotating shaft 5 is provided on the support member 14. The internal space of the hollow frame 11 is divided into a plurality of ballast tanks 3.

[0100] It also includes multiple radial connecting rods 12 and axial connecting rods 13. The radial connecting rods 12 are used to connect the hollow frame 11 and the support member 14, and the axial connecting rods 13 are used to connect two hollow frames 11 to form a columnar frame structure.

[0101] The total amount of ballast water remains unchanged. The pipeline system 4 includes a water pump, which is connected to the multiple ballast tanks 3 through the pipeline system 4.

[0102] Specifically, the hollow frame 11 is made of flat hollow tubes welded end to end; the support member 14 is a flat structure; the radial connecting rods 12 and the axial connecting rods 13 are both made of hollow steel tubes, and the radial connecting rods 12, the axial connecting rods 13 and the hollow frame 11 provide the main buoyancy of the entire equipment; the net hanging outfitting parts are arranged on the radial connecting rods 12, the axial connecting rods 13 and the hollow frame 11; some of the radial connecting rods 12 and the axial connecting rods 13 are movable to facilitate fishing and other tasks.

[0103] When ballast water is first charged into the ballast tank 3 , the draft and center of gravity position of the main structure 1 in the positive and negative force states can be adjusted by controlling the amount of ballast water.

[0104] The total amount of ballast water remains unchanged. The water pump in the pipeline system 4 is used to pump the ballast water in one ballast tank 3 into another ballast tank 3. It can also realize two-way transfer of ballast water. The flow direction of water is changed by connecting the pipeline between the water pump inlet and outlet and the ballast tank 3 and opening and closing the valves on the pipeline. A water pump can be fixedly installed on the main structure 1 near each ballast tank 3, or multiple ballast tanks 3 can share one water pump. The rotation speed of the main structure 1 can be controlled by controlling the speed of the water pump.

[0105] Further, if Figure 3 、 Figure 4 、 Figure 7 As shown, the hollow frame 11 is a regular polygon or a circle, and the volume of each ballast tank 3 is equal.

[0106] Specifically, when the hollow frame 11 is a regular polygon, the main structure 1 has a regular polygonal prism-shaped frame structure. Figure 4 In addition, the hollow frame 11 can also be an equilateral triangle, such as Figure 7 As shown, it can also be circular, but the internal space of the circular hollow frame 11 is evenly divided to form multiple ballast tanks 3, such as Figure 7 The number of ballast tanks 3 shown may be three or more.

[0107] The hollow frame 11 is a regular polygon or a circle, which is simple in structure and easy to manufacture. At the same time, the volumes of the equally divided ballast tanks 3 are equal, so that the ballast tanks 3 are evenly distributed around the rotation axis 5, which facilitates the adjustment of the rotation angle of the main structure 1.

[0108] The operation mode of the breeding equipment of this embodiment is as follows:

[0109] 1. Starting and Anchoring: After the equipment is positioned in the deep sea, the anchor chain rotating device is activated, causing the two anchor chain assemblies to extend from one end of the double-pin main lock 6. The other ends of the anchor chain assemblies are fixed to the seabed through the anchor foundation 8. The anchoring effect of the anchor chain assemblies keeps the aquaculture equipment stable in the sea.

[0110] Second, adjust the ballast water: Use a water pump to inject an appropriate amount of seawater into the ballast tanks 3 in the hollow frames 11 at both ends of the aquaculture equipment to reach the predetermined draft depth, such as Figure 7 As shown, only one of the multiple ballast tanks 3 at each end can be filled with seawater. For hollow frame 11 in the shape of an equilateral triangle, ballast water is located in both ballast tanks 3 and neither is filled. Ballast water adjustment requires precise control to ensure the equipment remains balanced and stable at sea. As the equipment reaches the designated operating draft, the aquaculture water body enclosed by the net 2 is essentially formed.

[0111] 3. Breeding management: During the breeding process, fishing, feeding and other operations are performed regularly through the movable parts of the radial connecting rod 12 and the axial connecting rod 13.

[0112] Fourth, observe the growth of adsorbents on the net 2 and main structure 1 to see if it affects the permeability of the net 2. Adjust the aquaculture equipment position accordingly, and move the net 2 with the most adsorbents to the water surface. You can also move the net 2 in different positions to the water surface in sequence to clean the net. While rotating the net 2, you can also clean other auxiliary structures and attachments on the frame structure of the aquaculture equipment, so as to ensure the cleanliness and normal operation of the entire equipment.

[0113] When adjusting the posture of breeding equipment, Figure 7 Taking the case of a hollow frame 11 in the shape of a middle ring and three ballast tanks 3 (ballast tanks A, B, and C) as an example, in the initial state, the ballast tank B is filled with ballast water. After the pipeline system 4 is started, the water pump gradually pumps the ballast water in the ballast tank B into the ballast tank A. As the center of gravity changes, the main structure 1 rotates. When the ballast water in the ballast tank B completely enters the ballast tank A and the center of gravity is on the plumb line, the rotation angle of the main structure 1 is 120 degrees. Figure 8 shown.

[0114] 5. Change of breeding area: When the breeding cycle ends due to changes in climatic conditions or other needs, adjust the water volume in the ballast tank 3 to make the equipment float. Then, remove the anchor chain assembly and hang a buoy at the end of the anchor chain assembly to mark the location.

[0115] 6. Use tugboats to transport aquaculture equipment to other sea areas and reinstall the mooring positioning system before continuing aquaculture.

[0116] Through the above-mentioned operation mode, the present invention can achieve efficient, stable and sustainable deep-sea aquaculture. This gravity-driven aquaculture equipment uses natural forces for lifting and posture adjustment, reducing energy consumption and maintenance costs.

[0117] Further, if Figure 3 As shown, it also includes a camera 9, which is installed on the main structure 1 and is used to monitor the status of the breeding equipment.

[0118] Specifically, the camera 9 is an underwater camera, fixed on the inner side of the frames at both ends of the main structure 1, facing the net cage. On the one hand, it monitors the status of the net 2, and on the other hand, it monitors the part of the net 2 that is currently located above the water surface of the main structure 1. There are multiple underwater cameras 9, which are evenly distributed in a ring around the axis of the main structure 1.

[0119] Further, if Figure 4 、 Figure 7 As shown, each ballast tank 3 is divided into a plurality of compartments 30 along the annular direction of the hollow frame 11 .

[0120] The arrangement of the compartments 30 can precisely adjust the rotation angle of the main structure 1 by transferring the ballast water in one compartment 30 at a time. At the same time, it can also reduce the shaking degree of the ballast water in each ballast compartment 3 during the rotation of the main structure 1, thereby realizing flexible and stable rotation of the main structure 1.

[0121] like Figure 9As shown, the hollow frames 11 located at both ends of the main structure 1 are regular hexagons, and each side corresponds to a ballast tank 3, which are ballast tank A, ballast tank B, ballast tank C, ballast tank D, and ballast tank E in a counterclockwise direction, and each ballast tank has 5 compartments, which are A1, A2, A3, A4, A5, B1, B2, B3, B4, B5, C1, C2, C3, C4, C5, D1, D2, D3, D4, D5, E1, E2, E3, E4, E5, F1, F2, F3, F4, F5 in a counterclockwise order. There is also a corresponding ballast tank at the other end of the main structure 1.

[0122] In the initial state, compartments A1, A2, A3, A4, and A5 are at the bottom, compartments D1, D2, D3, D4, and D5 are completely exposed above the water surface, and the corresponding nets are also above the water surface, and E1, C5, and ballast tanks are also above the water surface; at this time, compartments A1, A2, A3, A4, A5, B1, B2, B3, B4, B5, F1, F2, F3, F4, and F5 are filled with ballast water.

[0123] When the equipment needs to be rotated to adjust its posture, taking clockwise rotation as an example, the water in compartment F1 is pumped to compartment C1, then the water in compartment F2 is pumped to compartment C3, then the water in compartment F3 is pumped to compartment C3, then the water in compartment F4 is pumped to compartment C4, and finally the water in compartment F5 is pumped to compartment C5. During this gradual adjustment process, the aquaculture equipment will rotate accordingly, and the rotating shaft 5 and the double-pin main lock 6 will rotate relative to each other. After this adjustment is completed, compartments A1, A2, A3, A4, A5, B1, B2, B3, B4, B5, C1, C2, C3, C4, and C5 are filled with ballast water. Compartments E1, E2, E3, E4, and E5 are completely exposed to the water surface, and the corresponding nets are also above the water surface. Ballast tanks F1 and D5 are also above the water surface.

[0124] like Figure 10 As shown, under the condition that the center of gravity adjustment is satisfied, the ballast water may only fill one ballast tank in the initial state.

[0125] Figure 9 、 Figure 10 The middle dot represents ballast water.

[0126] The pipeline system 4 is connected to the control system of the breeding equipment. In addition, the breeding equipment is also equipped with a sensor, specifically a camera 9, which can monitor the pollution status and relative position of the net of the equipment in real time and adjust and control it as needed.

[0127] When camera 9 detects the need to clean the net and structural components, the control system determines the distribution of ballast water within each ballast tank 3 and plans the operating objectives and mode of the piping system 4. It automatically activates pumps and valves to change the ballast water distribution, rotating the main structure 1 to remove dirt and other debris from the net 2 by detaching it from the water and exposing it to sunlight. Simultaneously, sensors (camera 9) monitor the status and position of the net and feed this data back to the control system, enabling timely identification and resolution of any issues.

[0128] In summary, the gravity-driven deep-sea aquaculture equipment in this embodiment is easy to operate, flexible, and reliable. It can effectively maintain and clean nets, improving aquaculture results and economic benefits. Furthermore, the equipment is equipped with advanced sensors and control systems, enabling automated and intelligent management of the equipment.

[0129] Example 4:

[0130] The net cleaning method of the rotary deep-sea aquaculture equipment of this embodiment is as follows:

[0131] The main structure 1 of the aquaculture equipment is provided with a rotating shaft 5 at both ends. The rotating shaft 5 is rotatably mounted on a pivot portion 7 located in the sea. A plurality of ballast tanks 3 are provided at both ends of the main structure 1, and the number is greater than or equal to three. The plurality of ballast tanks 3 are provided on the main structure 1 and are distributed in a ring shape with the axis of the rotating shaft 5 as the center.

[0132] Net cleaning methods include:

[0133] Step 1: Fill one or more of the multiple ballast tanks 3 with ballast water, adjust the center of gravity of the main structure 1 so that the center of gravity is located on the middle cross section M of the main structure 1 and deviates from the axis of the rotating shaft 5, and part of the net is located above the water surface;

[0134] Step 2: The ballast water in one ballast tank 3 is pumped into another ballast tank 3 that is not full of ballast water through the pipeline system 4, so that the distribution of the ballast water is continuous in the annular direction, while changing the position of the center of gravity on the middle cross section M, driving the main structure 1 to rotate around the axis of the rotating shaft 5;

[0135] Step 3: After the rotation is completed, the part of the net below the water surface is above the water surface, and the net is cleaned;

[0136] Repeat steps 2 and 3 to clean the net 2 at different positions;

[0137] The angle of rotation of the main structure 1 in step 2 is less than or equal to the central angle of the virtual circle line where the part of the net located on the water surface before the rotation is located.

[0138] Specifically, the net cleaning operation can be done by drying the net or by manual cleaning; the angle of rotation of the main structure 1 is less than or equal to the central angle of the virtual circle line corresponding to the part of the net located on the water surface before rotation, ensuring that all parts of the net 2 can be exposed to the water surface during the rotation of the main structure 1.

[0139] By regularly and periodically rotating the aquaculture equipment, cleaning the net above the water surface, cleaning the marine organisms, and thoroughly removing the attachments before the marine organisms cause irreversible damage, it can be effectively ensured that the hydrodynamic performance of the aquaculture equipment does not change, thereby ensuring the safety and reliability of the net 2 and the main structure 1.

[0140] Net maintenance and cleaning using a rotating method is simple and effective. It effectively removes dirt and debris from the net, maintaining its permeability and fishing performance. Furthermore, direct net drying reduces the direct contact and wear on the net caused by existing net washing methods, extending its service life.

[0141] When the net is cleaned by drying it in the sun, the part of the net above the water surface will cause the adsorbent to fall off or die due to being out of the water and being baked by the sun. After the main structure 1 rotates again, the net in this part will be submerged in water, and the adsorbent that has not fallen off completely will also fall off automatically under the action of the waves.

[0142] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A rotary deep-sea aquaculture equipment, characterized by: include: A main structure (1), wherein the main structure (1) is a columnar frame structure, and the axis direction of the main structure (1) is consistent with the sea level direction; A net (2), the net (2) being arranged on the main structure (1) and forming a relatively closed breeding space inside the main structure (1); A ballast tank (3), wherein the ballast tank (3) is arranged on the main structure (1), the number of the ballast tanks (3) is greater than or equal to three, and the plurality of ballast tanks (3) are distributed in a ring shape with the axis of the main structure (1) as the center, and further comprising ballast water, wherein the ballast water is located in one or more ballast tanks (3), so that the center of gravity of the main structure (1) is located in the middle cross section (M) of the main structure (1) and deviates from the central axis of the main structure (1); A rotating shaft (5), the rotating shaft (5) being two in number and being fixedly connected to both ends of the main structure (1), and the axis of the rotating shaft (5) being coincident with the central axis of the main structure (1); A pivoting portion (7), the pivoting portion (7) is located in the sea, the pivoting portion (7) is rotatably connected to the rotating shaft (5), and maintains the position of the main structure (1) in the sea, so that the partial net (2) is located above the water surface; a piping system (4), the piping system (4) being arranged on the main structure (1) and being used to change the distribution of ballast water in the plurality of ballast tanks (3), thereby adjusting the position of the center of gravity on the middle cross section (M), so that the main structure (1) rotates around its own axis; The total amount of the ballast water remains unchanged, and the pipeline system (4) includes a water pump, which is connected to the plurality of ballast tanks (3) through the pipeline system (4); The rotation speed of the main structure (1) is controlled by controlling the distribution change speed of the ballast water, and the rotation angle of the main structure (1) is controlled by controlling the position of the ballast water on the main structure (1).

2. The rotary deep-sea aquaculture equipment according to claim 1, characterized in that: Also included is an anchor foundation (8) located on the seabed; The pivotal portion (7) is an anchor chain assembly, and the number of the anchor chain assemblies is two sets. One end of a single set of anchor chain assemblies is rotatably connected to the rotating shaft (5), and the other end of the single anchor chain assembly is connected to the anchor foundation (8). The main structure (1) is in a positive buoyancy state, and the main structure (1) maintains its position in the sea under the mooring action of the pivotal portion (7).

3. The rotary deep-sea aquaculture equipment according to claim 1, characterized in that: The main structure (1) includes a hollow frame (11) located at both ends of the main structure (1), the hollow frame (11) is an annular tubular structure, a support member (14) is provided at the annular center position of the hollow frame (11), the rotating shaft (5) is provided on the support member (14), and the internal space of the hollow frame (11) is divided into a plurality of ballast tanks (3); It also includes a plurality of radial connecting rods (12) and axial connecting rods (13), wherein the radial connecting rods (12) are used to connect the hollow frame (11) and the support member (14), and the axial connecting rods (13) are used to connect the two hollow frames (11) to form the columnar frame structure.

4. The rotary deep-sea aquaculture equipment according to claim 3, characterized in that: The hollow frame (11) is a regular polygon or a circle, and the volume of each ballast tank (3) is equal.

5. The rotary deep-sea aquaculture equipment according to claim 3, characterized in that: Each ballast tank (3) is divided into a plurality of compartments (30) along the annular direction of the hollow frame (11).

6. The rotary deep-sea aquaculture equipment according to claim 1, characterized in that: It also includes a camera (9), which is installed on the main structure (1) and is used to monitor the status of the breeding equipment.

7. The rotary deep-sea aquaculture equipment according to claim 1, characterized in that: The structure of the rotating shaft (5) comprises a connecting portion (501), a shaft portion (502) and a blocking portion (503), wherein the connecting portion (501), the shaft portion (502) and the blocking portion (503) are sequentially connected end to end to form a dumbbell-shaped structure, and the shaft portion (502) is rotatably connected to the pivot portion (7).

8. The rotary deep-sea aquaculture equipment according to claim 2, characterized in that: A double-pin main lock (6) is installed at one end of the anchor chain assembly; The structure of the double-pin main lock (6) includes a U-shaped hoop (601) and a first pin (602), wherein two ends of the first pin (602) are respectively connected to two ends of the U-shaped hoop (601), and the U-shaped hoop (601) and the first pin (602) are combined to form a sleeve hole (600), and the sleeve hole (600) is matched with the rotating shaft (5); It also includes a second pin (603), the second pin (603) being parallel to the first pin (602) and spaced apart from each other on the U-shaped hoop (601), and the second pin (603) being connected to the anchor chain assembly.

9. A method for cleaning the net of a rotary deep-sea aquaculture equipment according to any one of claims 1 to 8, characterized in that: A rotating shaft (5) is provided at both ends of the main structure (1) of the aquaculture equipment. The rotating shaft (5) is rotatably mounted on a pivotal portion (7) located in the sea. A plurality of ballast tanks (3) are provided at both ends of the main structure (1), and the number of the ballast tanks is greater than or equal to three. The plurality of ballast tanks (3) are provided on the main structure (1), and the plurality of ballast tanks (3) are distributed in a ring shape with the axis of the rotating shaft (5) as the center. The net cleaning method comprises: Step 1: Fill one or more ballast tanks (3) among the plurality of ballast tanks (3) with ballast water, and adjust the center of gravity of the main structure (1) so that the center of gravity is located on the middle cross section (M) of the main structure (1) and deviates from the axis of the rotating shaft (5), and part of the net is located above the water surface; Step 2: pumping the ballast water in one ballast tank (3) into another ballast tank (3) that is not filled with ballast water through the pipeline system (4), so that the distribution of the ballast water is continuous along the annular direction, while changing the position of the center of gravity on the middle cross section (M), and driving the main structure (1) to rotate around the axis of the rotating shaft (5); Step 3: After the rotation is completed, the part of the net below the water surface is above the water surface, and the net is cleaned; Repeat steps 2 and 3 to clean the nets (2) at different locations; The angle of rotation of the main structure (1) in step 2 is less than or equal to the central angle of the virtual circle corresponding to the portion of the net located on the water surface before the rotation.

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