A kind of offshore wind and wave resistant cage

Abstract

The present invention relates to the technical field of marine engineering equipment, and more specifically, to an offshore wind and wave resistant net cage, comprising a net frame formed by a plurality of connecting rods and a net cloth sleeved on the net frame, a floating bag is provided on the top of the net frame, a turbine assembly is connected to the outer periphery of the net frame, an energy dissipation assembly for absorbing and consuming energy is provided at the connection of adjacent connecting rods, and an anchor assembly for fixing the net cage is connected to the four corners. The present invention converts the deformation inside the net cage structure into rigid body displacement, reduces the internal force of each component, stores and consumes energy through the deformation of the torsion spring itself, consumes the energy generated by wind and waves on the net cage, reduces the internal force and deformation of the net cage, and improves the wind and wave resistance of the net cage; by fixing the net cage with the anchor assembly, the external load can be converted into the internal energy of the damping assembly, prolonging the load action time, reducing the impact of external force on the anchor and anchor chain, effectively preventing the damage of the anchor and the breakage of the anchor chain, and improving the wind and wave resistance of the net cage.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering equipment, and more specifically, to an offshore wind and wave resistant cage. Background Art

[0002] As the space for offshore cage farming becomes increasingly tight, and the slow water flow and low seawater exchange in shallow waters are not conducive to fish cultivation and growth, deep-sea cages have gradually replaced offshore cages and become the mainstream of offshore cage farming. Deep-sea cages solve the problems of poor water quality and excessive aquaculture density in offshore cages, and are generally used in waters with a depth of more than 20 meters. The advantages of deep-sea cages are: (1) Improving the water quality environment for fish survival. Deep-sea cages avoid the offshore waters occupied by real estate and tourism development. In the open sea, water pollution is relatively low, fish feces and other substances can be diluted, and water can be freely exchanged; (2) Increased economies of scale. As space restrictions are reduced, the scale of aquaculture can be doubled, thus generating huge benefits; (3) The structural system is more superior. Compared with offshore cages, deep-sea cages have added facilities such as automatic feeding systems, lifting systems, and wave power generation systems, making the cages more functional, convenient for fishermen, and reducing labor costs.

[0003] In my country, the East China Sea and the South China Sea are in typhoon-prone areas, with strong winds and waves, especially during typhoon season. In 2011, a strong typhoon hit Hainan, and the local marine aquaculture industry suffered a devastating blow. Among the deep-water cages affected, about 70% were damaged by the mooring system and about 30% were damaged by the main structure of the cages. Many cages were damaged due to broken anchor chains and caused great economic losses. Therefore, the mooring device must have reliable wind and wave resistance. At present, there are two types of wind and wave resistance for cages: active and passive. Active wave resistance relies on the strength of the main structure and the anchor structure to resist part of the wind and waves, and mainly relies on diving when the wind and waves are too large to avoid the frontal impact of the wind and waves. Passive wave resistance uses the strength of the main structure and the anchor structure to resist wind and waves. However, the active wave resistance method has a complex structure and can only be used in deep waters. It may cause the cage to capsize when diving, damaging the farmed fish and seafood; passive wave resistance only increases the strength of the main structure and the anchor structure, which is costly and has poor wind and wave resistance effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an offshore wind and wave resistant cage suitable for deep sea areas and strong wind and wave areas. The "energy absorption and energy consumption" principle is adopted to improve the safety performance of the deep sea cage, enhance its ability to resist huge wind and waves, and effectively resist the damage of the cage to the strong wind and waves.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] Provided is an offshore wind and wave resistant net cage, comprising a net frame formed by a plurality of connecting rods and a net cover sleeved on the net frame, wherein a buoyancy bag is arranged on the top of the net frame, a turbine assembly is connected to the periphery of the net frame, and an energy dissipation assembly for absorbing and consuming energy is arranged at the connection between adjacent connecting rods.

[0007] The offshore wind and wave resistant net cage of the present invention is provided with an energy dissipation component at the connection between adjacent connecting rods, which consumes the energy generated by wind and waves on the net cage, reduces the internal force generated in each component of the net cage to less than the bearing capacity of the component, reduces the deformation of each component, prevents the impact and damage of wind and waves on the net cage, and effectively improves the wind and wave resistant performance of the net cage.

[0008] Furthermore, the energy dissipation assembly includes a spherical hinge, and the adjacent connecting rods are connected by a spherical hinge. The net frame is composed of two half frames, and the energy dissipation assembly is connected between the two half frames. The two half frames can rotate freely, so that the deformation inside the net box structure is converted into rigid body displacement, reducing the internal force of each component.

[0009] Furthermore, the energy dissipation assembly also includes a plurality of groups of torsion springs, the plurality of groups of torsion springs are connected between adjacent connecting rods, and the plurality of groups of torsion springs surround the outer periphery of the spherical hinge.

[0010] Furthermore, multiple groups of torsion springs are surrounded to form multiple groups of square frame structures, and the spherical hinge is located at the center of the multiple groups of square frame structures. The torsion spring has a certain torsional stiffness, which can limit the excessive deformation of the spherical hinge and prevent the damage of seafood cultured in the cage and other devices; and the torsion spring can store and consume energy through its own deformation, which can consume the energy generated by wind and waves on the cage, thereby reducing the internal force and deformation of the cage through the energy consumption principle and improving the wind and wave resistance of the cage.

[0011] Furthermore, the turbine assembly includes a turbine box and a turbine, wherein the turbine box is connected to the side of the net frame, and the turbine is arranged inside the turbine box. The turbine can weaken the impact of sea waves on the net cage and increase the stability of the net cage.

[0012] Furthermore, the turbine assembly is connected to a hydroelectric power generation assembly, and the hydropower is converted into electrical energy through the turbine and wind and waves and stored, which can be used to power electrical appliances on the cage, effectively saving energy.

[0013] Furthermore, the four corners of the net cage are connected with anchoring components for fixing the net cage. Connecting the anchoring components facilitates the fixing of the net cage and can reduce the influence of wind and waves on the net cage.

[0014] Furthermore, the anchor system assembly includes an anchor and an anchor chain connected to the anchor, the anchor chain includes a first anchor chain and a second anchor chain, a damping assembly for absorbing and consuming energy is connected between the first anchor chain and the second anchor chain, and the second anchor chain is connected to the anchor at one end away from the first anchor chain. When the first anchor chain or the second anchor chain is subjected to tension, the external tension is converted into internal energy of the damping assembly, which prolongs the load action time, reduces the impact of external force on the anchor and the anchor chain, can effectively prevent the damage of the anchor and the breakage of the anchor chain, and has a good wind and wave resistance effect.

[0015] Furthermore, the damping assembly includes a piston cylinder and a piston plate, the piston cylinder is a closed structure and is filled with a viscous liquid, the piston plate is movably connected to the inside of the piston cylinder, the piston plate is provided with a through hole for the viscous liquid to flow through, and the first anchor chain and the second anchor chain are respectively connected to both sides of the piston plate. The piston plate moves up and down in the piston cylinder under the action of an external force, and the viscous liquid on both sides of the piston plate can flow up and down under the compression of the piston plate, thereby converting the external load into the internal energy of the viscous liquid, reducing the impact of the external force on the anchor, and preventing the anchor from being damaged and the anchor chain from breaking.

[0016] Furthermore, a first spring is connected between the first anchor chain and the piston plate, and a second spring is connected between the second anchor chain and the piston plate. The piston plate moves up and down in the piston cylinder under the action of external force, driving the first spring to contract and the second spring to extend or the first spring to extend and the second spring to contract, thereby converting the external load into the elastic energy of the first spring and the second spring, reducing the impact of the external force on the anchor, and preventing the damage of the anchor and the breakage of the anchor chain; and the first spring and the second spring can restore their original length after the external force is eliminated to drive the piston plate to move up and down, thereby realizing the cyclic work of the mooring device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The offshore wind and wave resistant net cage of the present invention converts the deformation inside the net cage structure into rigid body displacement, reduces the internal force of each component, stores and consumes energy through the deformation of the torsion spring itself, consumes the energy generated by wind and waves on the net cage, reduces the internal force and deformation of the net cage, and improves the wind and wave resistant performance of the net cage;

[0019] The offshore wind and wave resistant cage of the present invention fixes the cage by an anchor assembly, which can convert external load into internal energy of the damping assembly, prolong the load action time, reduce the impact of external force on the anchor and the anchor chain, effectively prevent the damage of the anchor and the breakage of the anchor chain, and improve the wind and wave resistant effect of the cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the offshore wind and wave resistant cage of the present invention;

[0021] Figure 2It is a schematic diagram of the structure of the energy dissipation component of the offshore wind and wave resistant cage;

[0022] Figure 3 It is a schematic diagram of the structure of the anchor assembly of the offshore wind and wave resistant cage;

[0023] In the accompanying drawings: 1-net frame; 11-connecting rod; 12-floating bag; 2-turbine assembly; 21-turbine box; 22-turbine; 3-energy dissipation assembly; 31-spherical hinge; 32-torsion spring; 4-anchor assembly; 41-anchor; 42-first anchor chain; 43-second anchor chain; 44-piston cylinder; 45-piston plate; 46-viscous liquid; 47-first spring; 48-second spring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Example

[0027] like Figures 1 to 3 The figure shows an embodiment of the offshore wind and wave resistant net cage of the present invention, comprising a net frame 1 formed by a plurality of connecting rods 11 and a net cover mounted on the net frame 1, a buoyancy bag 12 is provided on the top of the net frame 1, a turbine assembly 2 is connected to the periphery of the net frame 1, and an energy dissipation assembly 3 for absorbing and consuming energy is provided at the connection between adjacent connecting rods 11.

[0028] In this embodiment, an energy dissipation assembly 3 is provided at the connection between adjacent connecting rods 11 to consume the energy generated by wind and waves on the net cage, reduce the internal force generated in each component of the net cage to less than the bearing capacity of the component, reduce the deformation of each component, prevent the impact and damage of wind and waves on the net cage, and effectively improve the wind and wave resistance performance of the net cage.

[0029] Deep sea cages are a kind of steel structure, and their wind and wave resistance should be studied and improved from a structural perspective; the cage floats in the water and moves with the waves; if the waves are very large, the components of the cage will be greatly deformed, and a large internal force will be generated in each component, thus causing the cage structure to be damaged. Therefore, in order to prevent the cage structure from being damaged, it is necessary to reduce the deformation of each component and reduce the internal force to less than the bearing capacity of the component. Specifically:

[0030] like Figure 2 As shown, the energy dissipation assembly 3 includes a spherical hinge 31, and the adjacent connecting rods 11 are connected by the spherical hinge 31. The net frame 1 of this embodiment is composed of two half frames, and the energy dissipation assembly 3 is connected between the two half frames. The two half frames can rotate freely, so that the deformation inside the net box structure can be converted into rigid body displacement, reducing the internal force of each component. However, it should be noted that setting the net frame 1 as two half frames is a preferred choice made based on the comprehensive molding difficulty, manufacturing cost and wind and wave resistance, and is not a restrictive provision.

[0031] like Figure 2 As shown, the energy dissipation assembly 3 of this embodiment also includes multiple groups of torsion springs 32, which are connected between adjacent connecting rods 11 and surround the outer periphery of the spherical hinge 31. The multiple groups of torsion springs 32 surround to form multiple groups of square frame structures, and the spherical hinge 31 is located at the center of the multiple groups of square frame structures. The torsion spring 32 has a certain torsional stiffness, which can limit the excessive deformation of the spherical hinge 31 and prevent the damage of seafood and other devices cultured in the cage; and the torsion spring 32 can store and consume energy through its own deformation, and can consume the energy generated by wind and waves on the cage, thereby reducing the internal force and deformation of the cage through the energy consumption principle and improving the wind and wave resistance of the cage.

[0032] like Figure 1 As shown, the turbine assembly 2 of this embodiment includes a turbine box 21 and a turbine 22. The turbine box 21 is connected to the side of the net frame 1, and the turbine 22 is arranged on the inner side of the turbine box 21. The turbine 22 can reduce the impact of sea waves on the net cage and increase the stability of the net cage. The turbine assembly 2 is connected to the hydropower generation assembly to convert water power into electrical energy for storage, which can be used to power electrical appliances on the net cage, effectively saving energy.

[0033] In order to facilitate the fixation of the net cage and reduce the influence of wind and waves on the net cage, in this embodiment, anchoring components 4 for fixing the net cage are connected to the four corners of the net cage.

[0034] Specifically, Figure 3As shown, the anchor assembly 4 includes an anchor 41 and an anchor chain connected to the anchor 41, the anchor chain includes a first anchor chain 42 and a second anchor chain 43, a damping assembly for absorbing and consuming energy is connected between the first anchor chain 42 and the second anchor chain 43, and one end of the second anchor chain 43 away from the first anchor chain 42 is connected to the anchor. In this embodiment, when the first anchor chain 42 or the second anchor chain 43 is subjected to tension, the external tension is converted into the internal energy of the damping assembly, which prolongs the load action time, reduces the impact of external force on the anchor and the anchor chain, can effectively prevent the damage of the anchor and the breakage of the anchor chain, and has a good wind and wave resistance effect.

[0035] The damping assembly includes a piston cylinder 44 and a piston plate 45. The piston cylinder 44 is a closed structure and is filled with a viscous liquid 46. The piston plate 45 is movably connected to the inside of the piston cylinder 44. The piston plate 45 is provided with a through hole through which the viscous liquid 46 can flow. The first anchor chain 42 and the second anchor chain 43 are respectively connected to both sides of the piston plate 45. In this way, the piston plate 45 moves up and down in the piston cylinder 44 under the action of an external force, and the viscous liquid 46 on both sides of the piston plate 45 can flow up and down under the compression of the piston plate 45, thereby converting the external load into the internal energy of the viscous liquid 46, reducing the impact of the external force on the anchor, and preventing the damage of the anchor and the breakage of the anchor chain.

[0036] In this embodiment, a first spring 47 is connected between the first anchor chain 42 and the piston plate 45, and a second spring 48 is connected between the second anchor chain 43 and the piston plate 45; in this way, the piston plate 45 moves up and down in the piston cylinder 44 under the action of external force, driving the first spring 47 to contract and the second spring 48 to extend or the first spring 47 to extend and the second spring 48 to contract, thereby converting the external load into the elastic energy of the first spring 47 and the second spring 48, reducing the impact of the external force on the anchor, preventing the damage of the anchor and the breakage of the anchor chain; and the first spring 47 and the second spring 48 can restore their original lengths after the external force is eliminated to drive the piston plate 45 to move up and down, thereby realizing the cyclic operation of the mooring device. However, it should be noted that the first spring 47 and the second spring 48 are set to improve the damping performance of the damping assembly 4 and facilitate the cyclic action of the damping assembly 4, and are not intended to be restrictive provisions.

[0037] The end of the first spring 47 passes through the top of the piston cylinder 44 and is connected to the first anchor chain 42, and the end of the second spring 48 passes through the bottom of the piston cylinder 44 and is connected to the second anchor chain 43. In order to prevent the viscous liquid 46 from flowing out of the piston cylinder 44, a sealing structure is provided at the connection between the first spring 47 and the piston cylinder 44 and at the connection between the second spring 48 and the piston cylinder 44 in this embodiment, but this sealing structure cannot be considered as a limitation of the present invention.

[0038] In order to facilitate the connection between the first spring 47 and the first anchor chain 42, and between the second spring 48 and the second anchor chain 43, in this embodiment, a first connecting hook connected to the first anchor chain 42 is provided at the end of the first spring 47, and a second connecting hook connected to the second anchor chain 43 is provided at the end of the second spring 48. However, the provision of the first connecting hook and the second connecting hook is a preferred connection mode made in combination with the anchor chain structure, and is not a specific limitation of the present invention.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An offshore wind and wave resistant cage, characterized in that: The invention comprises a net frame (1) formed by surrounding a plurality of connecting rods (11) and a net cloth sleeved on the net frame (1); a floating bag (12) is provided on the top of the net frame (1); a turbine assembly (2) is connected to the outer periphery of the net frame (1); the turbine assembly (2) comprises a turbine box (21) and a turbine (22); the turbine box (21) is connected to the side of the net frame (1); and the turbine (22) is provided on the inner side of the turbine box (21); An energy dissipation component (3) having an energy absorption and energy dissipation function is provided at the connection point of adjacent connecting rods (11), the energy dissipation component (3) comprising a spherical hinge (31) and a plurality of torsion springs (32), the adjacent connecting rods (11) being connected via the spherical hinge (31), the plurality of torsion springs (32) being connected between adjacent connecting rods (11), and the plurality of torsion springs (32) being surrounded by the outer periphery of the spherical hinge (31), the plurality of torsion springs (32) being surrounded to form a plurality of square frame structures, and the spherical hinge (31) being located at the center of the plurality of square frame structures, the torsion springs (32) can store and consume energy through their own deformation, consume the energy generated by wind and waves on the net frame (1), and reduce the internal force and deformation of the net frame (1); The four corners of the net cage are connected to an anchor assembly (4) for fixing the net cage. The anchor assembly (4) comprises an anchor (41) and an anchor chain connected to the anchor (41). The anchor chain comprises a first anchor chain (42) and a second anchor chain (43). A damping assembly for absorbing and consuming energy is connected between the first anchor chain (42) and the second anchor chain (43). An end of the second anchor chain (43) away from the first anchor chain (42) is connected to the anchor (41). The damping assembly comprises a piston cylinder (44) and a piston plate (45). The piston cylinder (44) is a closed structure and is filled with a viscous liquid (46). The piston plate (45) is movably connected to the inside of the piston cylinder (44). The piston plate (45) is provided with a through hole for allowing the viscous liquid (46) to flow through. The first anchor chain (42) and the second anchor chain (43) are respectively connected to two sides of the piston plate (45).

2. The offshore wind and wave resistant cage according to claim 1, characterized in that: The turbine component (2) is connected to a hydroelectric power generation component.

3. The offshore wind and wave resistant cage according to claim 1, characterized in that: A first spring (47) is connected between the first anchor chain (42) and the piston plate (45), and a second spring (48) is connected between the second anchor chain (43) and the piston plate (45).

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