Large anti-typhoon deep sea aquaculture net cage

Abstract

The utility model relates to a large typhoon-resistant deep sea aquaculture net cage which comprises a net cage floating body structure located under the water surface, and the net cage floating body structure is provided with at least one annular submerging and floating pipe. The upper-layer low-resistance net hanging structure is located above the net cage floating body structure, the upper-layer low-resistance net hanging structure is provided with a plurality of vertical rods which are integrally and annularly distributed at intervals, each vertical rod is provided with an upper end and a lower end, and the lower ends of the vertical rods are connected to the net cage floating body structure; the netting is integrally arranged in an internal space formed by the upper-layer net hanging structure and the net cage floating body structure, and the upper part of the netting is connected to the upper ends of the vertical rods of the upper-layer net hanging structure. According to the net cage floating body structure, at least one submerging and floating pipe forms a bearing structure to serve as a main body structure, the main body structure has the net cage submerging and floating functions at the same time, the main body structure is located at the bottom of the periphery of the net cage, and a plurality of vertical rods with enough strength are upwards used for hanging nettings. The impact pressure of stormy waves on the whole net cage is reduced, and seawater inside and outside the net cage efficiently exchanges.

Description

Technical Field

[0001] The utility model relates to the field of seawater aquaculture, in particular to a large-scale typhoon-resistant deep-sea aquaculture cage. Background Art

[0002] China is a maritime country. Marine fisheries are an important part of modern agriculture and marine economy, as well as an important part of China's food security. There are abundant seafood, but with overfishing of seafood, resources are becoming increasingly scarce, and the supply of seafood is increasingly dependent on marine aquaculture. However, the development of nearshore areas such as estuaries and bays has reached saturation, and the extensive aquaculture model has caused many problems such as environmental deterioration, serious pollution, increased diseases, and decreased health quality of aquaculture organisms, indicating that the nearshore marine aquaculture model is on the verge of its development limit. Deepwater areas with a water depth of more than 20m are far away from the coast and relatively open. The water quality is naturally pollution-free, the seawater has good fluidity, and strong self-purification ability. It is a high-quality marine aquaculture area to be developed.

[0003] Deep-sea aquaculture is an important way to expand new space for the development of aquaculture and reduce the pressure on the offshore ecological environment. It is of great significance to improve the quality and efficiency of aquaculture, realize the modernization of fisheries, ensure world food security and the sustainable development of the aquaculture industry.

[0004] In order to meet the needs of offshore aquaculture, some domestic and foreign units have successively developed high-density polyethylene (HDPE) circular floating deep-water cages and lifting circular cages, disc-shaped deep-water cages and other types. In recent years, my country has also successfully developed floating cages with reinforced structures and lifting wind and wave resistant cages, which have enabled my country's fish farming cages to have a certain ability to resist typhoons and to a certain extent ensure the safety of my country's nearshore cage aquaculture. However, my country's existing deep-water wind and wave resistant cages cannot carry out aquaculture activities far away from the coast, because the energy supply and automatic feeding problems of cage aquaculture have not been solved, and there are also certain problems with structural strength. In the development of marine aquaculture in my country, high-density polyethylene (HDPE) floating cages have become the dominant equipment, but the problem of wind and wave resistance has not been fundamentally solved.

[0005] The overdevelopment of coastal marine aquaculture in my country has caused the resource and environmental carrying capacity to reach or approach the upper limit. Therefore, the coastal areas will develop deep-sea aquaculture as an important means to build a modern marine industrial system, but the problem of "resisting wind and waves" in deep-sea aquaculture must be solved.

[0006] In 2018, the world's largest fully submersible cage "Deep Blue No. 1" built by Qingdao Wuchuan Heavy Industry Co., Ltd. was launched in Qingdao. The cage has a circumference of 180 meters, a diameter of 110 meters, a height of 20 stories, an underwater part of 45 meters, weighs 7,693 tons, and a breeding water volume of 50,000 cubic meters, which can breed 300,000 salmon at a time. However, the extremely high cost of 420 million yuan has seriously restricted its promotion and popularization, making it unbearable for small and medium-sized aquaculture enterprises. "Deep Blue No. 1" suffered a major setback during the test. After maintenance and improvement, it was launched again. A 30-meter-high central column was added to the cage, turning it into a bottom-sitting cage. Even if the transformation cost 4 to 5 million US dollars, the performance was severely limited.

[0007] Patent CN220756161U also mentions a typhoon-resistant deep-water cage, which belongs to the technical field of deep-sea aquaculture equipment. The device includes a stabilizing anchor rope, and a buoy and a rope-collecting mechanism connected by the stabilizing anchor rope; an electrically connected control system and an energy storage system are arranged inside the buoy; the rope-collecting mechanism and the control system are electrically connected; the buoy can effectively protect the internal control system and energy storage system, and the buoy floats on the sea level, which is convenient for identification and troubleshooting; when the equipment sinks, the stabilizing anchor rope is continuously released by the rope-collecting mechanism, which can effectively prevent the buoy from being pulled into the deep sea by the sinking equipment at the same time, making it inconvenient to control the equipment to surface again, thereby affecting normal aquaculture work; it effectively solves the problem of existing deep-water cages that are easily unable to float to the surface due to control equipment failure or insufficient equipment energy storage.

[0008] The typhoon-resistant net cage in the above patent achieves the purpose of typhoon resistance by sinking the equipment into the deep sea. However, during the entire sinking process of the equipment, the buoy must be located above the sea surface. As is known to all, when a typhoon occurs, the sea surface will inevitably fluctuate greatly due to the influence of the typhoon, which will cause the buoy located above the sea surface to fluctuate and float greatly under the influence of the undulating waves. This phenomenon generally brings two consequences: first, the stabilizing anchor rope used to connect the buoy to the equipment is disconnected, and the buoy alone fluctuates with the waves on the sea surface. However, the equipment will sink to the bottom due to the disconnected buoy, and the separation of the buoy will make it more difficult to find the location of the equipment manually; second, the buoy will pull the entire equipment together with the waves through the stabilizing anchor rope to fluctuate and float. In this case, the water flow will impact the net and cause the deformation of the net, and it will also affect the fish cultured in the net. Regardless of which of the above situations occurs, it shows that the typhoon resistance of the net cage is not very good.

[0009] Another example is a deep-sea lifting aquaculture cage mentioned in patent CN115281133B, which includes a main structure of the aquaculture cage, a tensioned mooring chain, a signal acquisition system and a lifting control system; the main structure of the aquaculture cage includes a vertical main supporting buoyancy cylinder, a plurality of transverse floating tubes, a plurality of vertical supporting columns, and a plurality of connecting pipes; the interior of the vertical main supporting buoyancy cylinder is divided into a plurality of water storage tanks, and each water storage tank is connected to the transverse floating tube at a corresponding height through a plurality of connecting pipes; each water storage tank is provided with a submersible pump and a solenoid valve, and each submersible pump and solenoid valve is respectively connected to the lifting control system in communication; the marine environment sensor is connected to the lifting control system in communication; the lifting control system controls the start and stop of the submersible pump and the solenoid valve in each water storage tank according to the marine environment sensor signal, thereby controlling the automatic lifting and lowering adjustment of the main structure of the aquaculture cage.

[0010] The net cage in the above patent avoids wind and waves by sinking the entire net cage structure below the water surface, thereby achieving a good typhoon resistance effect. However, it still has other defects: in the main structure of the entire aquaculture net cage, a circle of horizontal floating tubes are set for the upper, middle and lower positions, and a vertical buoyancy cylinder is also set at the center position. When sinking, it is necessary to fill water in the order of the first pipe, the second pipe and the third pipe. In particular, when the third pipe is filled with water, it is necessary to ensure that the entire net cage has sunk to a certain depth of seawater, otherwise there will not be enough seawater at the third pipe to enter the third water storage tank. Correspondingly, there will not be enough seawater in the third transverse floating tube located at the top layer. As a result, during the sinking process, the third water storage tank and the third transverse floating tube can still provide a certain upward buoyancy for a long time, resulting in a very slow sinking efficiency of the net cage; in addition, the buoyancy cylinder and each layer of horizontal floating tubes are not connected. The space inside the cage needs to be connected by a connecting pipe, which results in the space inside the cage being divided by the connecting pipe, causing certain interference to the placement of the net; finally, the entire cage structure adopts a rectangular structure. In this structure, the connection points between the transverse floating tubes, between the transverse floating tubes and the vertical support columns, and between the transverse floating tubes and the connecting pipes are mostly selected at the inflection points or corners of the rectangular structure, which results in a relatively small and concentrated distribution of the connection points. When conducting deep-sea aquaculture, the cages are placed in seawater for a long time, and the deep sea water is generally not calm. Even if there is no typhoon, the sea surface will be affected by various factors such as sea breeze and will not be calm, that is, the cages will be impacted by seawater for a long time, especially at the various connection points, where the stress is the greatest and cracking is most likely to occur. Eventually, the entire cage will be deformed or even split, affecting the smooth progress of marine aquaculture. Utility Model Content

[0011] The technical problem to be solved by the utility model is to provide a large-scale typhoon-resistant deep-sea aquaculture cage with a stable structure and good typhoon-resistant effect.

[0012] In order to solve the above technical problems, the technical solution of the utility model is: a large-scale typhoon-resistant deep-sea aquaculture cage, the innovation of which is that the aquaculture cage includes

[0013] a) The cage buoyancy structure located under the water surface is used to bear the overall sinking and floating of the aquaculture cage and serves as the main supporting structure of the aquaculture cage.

[0014] The net cage buoyancy structure has at least one ring-shaped submerged buoyancy tube;

[0015] b) an upper low-resistance net hanging structure located above the net cage floating structure, the upper low-resistance net hanging structure having a plurality of vertical rods distributed in an annular shape at intervals, the vertical rods having an upper end and a lower end, the lower end of the vertical rods being connected to the net cage floating structure;

[0016] c) a net, which is disposed as a whole in the internal space formed by the upper net hanging structure and the net cage floating structure, and the upper part of the net is connected to the upper ends of the vertical rods of the upper net hanging structure;

[0017] The upper low-resistance net hanging structure has two states under the action of the net cage floating structure:

[0018] In the first state, at most the upper part of the vertical rod is above the water surface; in the second state, the vertical rod is completely below the water surface.

[0019] Furthermore, the cage buoy structure has two or more submerged floating tubes, the two or more submerged floating tubes share the same rotation axis, and in the direction of the rotation axis, at least two submerged floating tubes are staggered;

[0020] The cage buoy structure also has a plurality of connecting rods, which are arranged between the submerged buoyant tubes, so that the submerged buoyant tubes and the connecting rods together form an integrally annular load-bearing structure.

[0021] Furthermore, the cage buoy structure has two submersible buoyant tubes, and the annular outer circle radius R1 of the upper submersible buoyant tube of the two submersible buoyant tubes is smaller than the annular inner circle radius R2 of the lower submersible buoyant tube.

[0022] Furthermore, the cage buoyancy structure has three submerged floating tubes, which share the same rotation axis, and within the same cross-section, the cross-sectional centers of the three submerged floating tubes are distributed in a triangular shape.

[0023] Furthermore, a structural stabilizing member is provided in the middle position of the cage float structure. The structural stabilizing member is a circular ring or a circular plate, and the structural stabilizing member and the submersible buoy share the same rotation axis. The structural stabilizing member is connected to at least the lowest submersible buoy through several stabilizing rods, and the stabilizing rods are distributed radially outward with the structural stabilizing member as the center point.

[0024] Furthermore, the connecting rod is formed by a pair of clamping blocks buckled together, and semicircular grooves for accommodating the buoyant tube to be embedded are respectively opened on both sides of the clamping blocks, and after the two clamping blocks are buckled together, a circular fixing groove for fixing the buoyant tube is formed.

[0025] Furthermore, a reinforcing rod is connected between two adjacent connecting rods.

[0026] Furthermore, a horizontal support rod is connected between two adjacent vertical rods.

[0027] Furthermore, a storage compartment and a sealed compartment are distributed in the submersible tube, and the storage compartment and the sealed compartment are sequentially spaced apart along the circumferential direction of the submersible tube, the storage compartment is a hollow compartment, and a liquid inlet, a liquid discharge port, an air inlet and an air discharge port connected to the storage compartment are also provided on the submersible tube;

[0028] When no air is introduced into the storage tank, the space in the storage tank is used as a water injection tank for the circulation of seawater. In this state, the aquaculture cage sinks to the second state;

[0029] When air is taken into the storage cabin, the space in the storage cabin is used as an inflatable cabin for gas circulation. In this state, the breeding cage floats up to the first state.

[0030] Furthermore, an airbag may be installed in each of the storage compartments, and the air inlet and the air outlet are connected to the airbag.

[0031] Furthermore, the bottom end of the vertical rod is also connected to a leveling sinker.

[0032] The advantages of the utility model are as follows: the aquaculture cage in the utility model, the cage buoyancy structure is a load-bearing structure formed by at least one submerged buoy tube as its main structure, the main structure also bears the function of sinking and floating the cage, the main structure is located at the bottom of the outer periphery of the cage, and the main structure uses a plurality of vertical rods of sufficient strength to hang the net upward from the main structure, which not only reduces the impact pressure of wind and waves on the entire cage, but also allows efficient exchange of seawater inside and outside the cage.

[0033] The cage float structure adopts a ring-shaped load-bearing structure formed by two layers of submerged buoys and a number of connecting rods. It has higher structural strength and better stability. Relatively speaking, the size of the cage formed can be made larger and can accommodate more fish.

[0034] Through the automatic control system, the floating structure of the cage can be stably submerged in a certain position underwater, so that the water surface position of the entire cage can meet the normal needs of aquaculture, and the floating body can effectively avoid the wind and waves on the sea surface; when a strong typhoon strikes, the sinking and floating function of the floating structure of the cage is automatically controlled to allow the cage to dive to a water level that can effectively prevent strong typhoons.

[0035] The cage buoy structure of the utility model is always placed under the sea surface, is less affected by sea surface wind and waves, and has stronger wind and wave resistance. When a typhoon or red tide comes, the height can be lowered by exhausting air and injecting water into the buoyant tube, so that the aquaculture cage can continue to dive and is not affected by the typhoon and red tide. After the typhoon, the aquaculture cage can be raised to a predetermined height by draining water and inflating air into the buoyant tube. Moreover, by adopting the structure of the utility model, the size of the aquaculture cage can be enlarged, while the structural strength of the aquaculture cage can be guaranteed, and a good typhoon resistance effect can be achieved, which is suitable for aquaculture in deep sea areas.

[0036] For the connection of the top position of the vertical pole, only horizontal supports are used to improve the overall structural performance of the cage. The horizontal supports not only strengthen the overall structure of the cage but also provide support for the installation of the net, reduce the deformation caused by the impact of water flow on the net, and reduce the impact on fish. In addition, the vertical poles and horizontal supports are only needed for the installation of the net, and do not need to provide buoyancy or water injection functions. Therefore, the connection strength requirements for the vertical poles and horizontal supports are relatively low.

[0037] Multiple storage tanks can be equipped with multiple liquid inlets, liquid drains, air inlets and exhaust ports to achieve rapid injection or discharge of seawater and rapid filling or discharge of air, thereby increasing the rising or sinking speed of the aquaculture cages and improving efficiency.

[0038] The structural stabilizers set in the middle of the cage float structure and the radially distributed stabilizing rods are used to reinforce the structure of the cage float structure. With this radial distribution method, it is subjected to bidirectional tension and bending forces, and the tension can be dispersed to various supporting points of the submerged floating tube. It has high tensile strength, simple structure, good rigidity, and effectively improves the rigidity and stability of the cage float structure.

[0039] The design of the connecting rod adopts a structure formed by a pair of clamping blocks. When such a connecting rod is used to connect the two layers of submerged buoyant tubes, it has a simple structure, is easy to assemble, and does not require welding. In addition, the two connecting rods are reinforced by a pair of reinforcing rods to form a stable structure between the two layers of submerged buoyant tubes, further ensuring the structural stability of the entire cage float structure.

[0040] The design of the leveling sinker is used to balance the manufacturing errors of the aquaculture cages and adjust the lifting and lowering posture of the aquaculture cages.

[0041] By adopting the cage buoyancy structure design of the utility model, the submerged floating tube can not only be formed by welding the metal pipe after winding it into an arc, or by bending it into an arc and then assembling it through a flange connection; it is also more conducive to being made of composite material reinforced HDPE pipe. Compared with metal pipes, it has light weight, high strength, and certain toughness, and can provide a larger floating foundation for the aquaculture cage, and more reliably ensure the posture of the aquaculture cage in the seawater. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of a large-scale typhoon-resistant deep-sea aquaculture cage of the utility model.

[0043] Figure 2 It is a schematic diagram of the connection between the vertical rod, the horizontal support and the cage floating structure in the utility model.

[0044] Figure 3 It is a cross-sectional view of the submersible buoy in the utility model.

[0045] Figure 4 This is a first distribution diagram of the cage float structure composed of two layers of submerged floating tubes in the utility model.

[0046] Figure 5 This is a second distribution schematic diagram of the cage buoy structure composed of two layers of submerged floating tubes in the utility model.

[0047] Figure 6 This is a first distribution diagram of the cage float structure composed of three submerged floating tubes in the utility model.

[0048] Figure 7 This is a second distribution diagram of the cage float structure composed of three submerged floating tubes in the utility model.

[0049] Figure 8 This is a third distribution schematic diagram of the cage float structure composed of three submerged floating tubes in the utility model.

[0050] Fig. 9 This is a fourth distribution schematic diagram of the cage float structure composed of three submerged floating tubes in the utility model.

[0051] Fig.10 This is a fifth distribution schematic diagram of the cage buoy structure composed of three submerged buoyant tubes in the utility model. DETAILED DESCRIPTION

[0052] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0053] like Figure 1-Figure 10 A large-scale typhoon-resistant deep-sea aquaculture cage is shown, comprising a vertical rod 2, a horizontal support 3, a cage buoyancy structure and a net.

[0054] a) The cage buoyancy structure located under the water surface is used to bear the overall sinking and floating of the aquaculture cage and serves as the main supporting structure of the aquaculture cage.

[0055] The cage buoy structure has two ring-shaped submersible tubes, namely the first submersible tube 1 and the second submersible tube 9. The first submersible tube 1 and the second submersible tube 9 share the same rotation axis, and in the direction of the rotation axis, the first submersible tube 1 and the second submersible tube 9 are staggered, that is, the first submersible tube 1 is located on the upper side, and the second submersible tube 9 is located on the lower side.

[0056] The cage buoy structure also has a plurality of connecting rods 8, which are connected between the first submersible buoy tube and the second submersible buoy tube 9, so that the first submersible buoy tube, the second submersible buoy tube 9 and the connecting rods 8 together form an integrally annular load-bearing structure.

[0057] b) An upper low-resistance net hanging structure located above the net cage floating structure, the upper low-resistance net hanging structure has a plurality of vertical rods 2 which are distributed in a circular shape at intervals, the vertical rods 2 have an upper end and a lower end, and the lower end of the vertical rods 2 is connected to the net cage floating structure.

[0058] c) Nets, the nets are arranged as a whole in the internal space formed by the upper net hanging structure and the cage floating structure, and the upper part of the nets is connected to the upper ends of the vertical rods 2 of the upper net hanging structure.

[0059] The upper low-resistance hanging net structure has two states under the action of the net cage floating structure:

[0060] In the first state, at most the upper part of the vertical rod 2 is located above the water surface; this state is mostly used in normal breeding, when the sea waves are small and when feeding the fish in the net.

[0061] In the second state, the vertical rod 2 is completely located below the water surface; this state is mostly used when there is a typhoon or when the sea waves are large.

[0062] The following is combined with Figure 1-Figure 10 A detailed description of the various components that make up the aquaculture cage:

[0063] A storage compartment 11 for storing gas and liquid is also provided in the submersible buoy tube. An air inlet, an air outlet, a liquid inlet and a liquid outlet connected to the storage compartment 11 are also provided on the submersible buoy tube. The two layers of submersible buoy tubes are connected by a plurality of connecting rods 8.

[0064] like Figure 3As can be seen from the schematic diagram shown, there are four storage compartments 11 in the submersible snorkel, which are distributed in sequence along the circumferential direction of the submersible snorkel, and there are gaps between adjacent storage compartments 1. A section between two adjacent storage compartments 11 on the submersible snorkel is a sealed compartment 12. A partition 13 is also provided between the sealed compartment 12 and the storage compartment 11. An airbag can also be installed in each storage compartment 11. By providing the airbag, the seawater and air in the storage compartment 11 can be separated, which facilitates the independent intake and discharge of seawater and air and avoids interference with each other. The liquid inlet and the liquid discharge port are directly connected to the storage compartment 11, and the air inlet and the exhaust port are connected to the airbag.

[0065] Regarding the design of the number of storage compartments 11, only four are used in this embodiment. However, in actual application, it is not limited to the design of four storage compartments 11, and other numbers can also be used according to actual conditions.

[0066] In the present invention, the distribution of the liquid inlet, liquid discharge port, air inlet and exhaust port can be that each storage compartment 11 is equipped with an independent liquid inlet and liquid discharge port, each air bag is equipped with an independent air inlet and exhaust port, or the liquid inlet and liquid discharge port can be equipped in the storage compartments 11 at intervals according to the buoyancy requirements, and the air bag in the storage compartment 11 equipped with the liquid inlet and liquid discharge port is also equipped with the air inlet and exhaust port, and ensure that the liquid inlet, liquid discharge port, air inlet and exhaust port are evenly distributed in a circle. Multiple storage compartments 11 can be equipped with multiple liquid inlets, liquid discharge ports, air inlets and exhaust ports, so as to realize the rapid injection or discharge of seawater and the rapid filling or discharge of air, thereby increasing the rising or sinking speed of the aquaculture cage and improving efficiency.

[0067] When no air is taken into the storage tank 11, the space in the storage tank 11 is used as a water injection tank for allowing seawater to flow. In this state, the aquaculture cage sinks to the first state.

[0068] When air is taken into the storage chamber 11, the space in the storage chamber 11 is used as an inflatable chamber for gas circulation. In this state, the breeding cage floats up to the second state.

[0069] A structural stabilizer 5 is also provided in the middle of the cage float structure. The structural stabilizer 5 is a circular ring. The structural stabilizer and the submersible tube share the same rotation axis. The structural stabilizer 5 is connected to the submersible tube at the bottom through several stabilizer pull rods 6, and each stabilizer pull rod is radially distributed outward with the structural stabilizer as the center point. The coordination of the structural stabilizer provided in the middle of the cage float structure and the radially distributed stabilizer pull rods is used to reinforce the structure of the cage float structure. With this radial distribution method, the tension and bending force in both directions can be dispersed to each supporting point of the submersible tube. It has high tensile strength, simple structure, good rigidity, and effectively improves the rigidity and stability of the cage float structure.

[0070] In the present invention, the structural stabilizing member 5 may also be a circular plate.

[0071] Each connecting rod 8 is arranged in sequence along the circumferential direction of the submerged floating tube. The connecting rod 8 is formed by a pair of clamping blocks buckled together. The clamping blocks are made of high-strength galvanized alloy plates or engineering plastics. The two clamping blocks of the same connecting rod 8 are connected by bolts. The anti-loosening treatment structure is simple and easy to assemble. Semicircular grooves for accommodating the submerged floating tube are respectively opened on both sides of the clamping block, and a circular fixing groove for fixing the submerged floating tube is formed after the two clamping blocks are buckled together. A wear-resistant protective layer is also provided between the clamping block and the outer wall of the submerged floating tube, thereby reducing the damage of the clamping block to the tube wall of the submerged floating tube. A reinforcing rod 7 distributed in an X-shape or W-shape is also connected between two adjacent connecting rods 8. The design of the connecting rod adopts a structural form formed by a pair of clamping blocks buckled together. When such a connecting rod 8 realizes the connection of two layers of submerged floating tubes, the structure is simple, the assembly is convenient, and welding is not required. In addition, the two connecting rods 8 are also reinforced by reinforcing rods 7, so that a stable structure is formed between the two layers of submerged floating tubes, further ensuring the structural stability of the entire cage floating structure.

[0072] In the present invention, in addition to the above-mentioned structural form, the connecting rod 8 can also be connected to the submerged tube by a bare rod and a pair of hoops, the two hoops are respectively arranged on the upper and lower sides of the connecting rod 8, and the hoops and the submerged tube are locked by the cooperation of bolts and nuts. When this connection method is used, the lower part of the vertical rod 2 can be directly used as the connecting rod 8, that is, the vertical rod 2 and the connecting rod 8 are used as a whole, which is also more convenient to process.

[0073] There are several vertical rods 2 distributed in a ring shape on the outside of the cage float structure, and the number of vertical rods 2 is consistent with the number of connecting rods 8. In this embodiment, the upper part of the vertical rod 2 adopts a tapered tube with an outer diameter gradually decreasing from bottom to top, which can reduce the wind resistance or water resistance of the upper part of the vertical rod 2. Furthermore, the lower part of the vertical rod 2 adopts a round tube section, which is convenient for the connection between the vertical rod 2 and each connecting rod 8, and the vertical rod 2 and the connecting rod 8 are fixed by the cooperation of U-shaped buckle plates. The top of the vertical rod 2 is connected by a cross support 3, and the cross support 3 and the column 2 are connected together by the cooperation of a clamp, and the net is hung on the vertical rod 2 or the cross support 3. The connection at the top position of the vertical rod 2 is achieved by only using the horizontal support 3, which improves the overall structural performance of the cage. The horizontal support 3 not only strengthens the overall structure of the cage, but also provides support for the installation of the net, reduces the deformation caused by the impact of water flow on the net, and reduces the impact on the fish. In addition, the vertical rod 2 and the horizontal support 3 are only needed for the installation of the net, and do not need to provide buoyancy or water injection functions. Therefore, the connection strength requirements for the vertical rod 2 and the horizontal support 3 are relatively low, and only clamps are needed for connection without welding.

[0074] As an exemplary and implementable solution of the utility model, the net can adopt a warp-knitted knotless net made of high-strength nylon (PA) with a breaking strength of 8g / d to 9g / d, good flexibility, a wide range of process adaptability, especially the post-processing process, and excellent anti-aging performance.

[0075] The bottom end of the vertical rod 2 is also connected with a leveling sinker 4. In this embodiment, the number and position of the leveling sinkers 4 can be adjusted according to the site. The design of the leveling sinker 4 is used to balance the manufacturing error of the aquaculture cage and adjust the lifting posture of the aquaculture cage.

[0076] In the present invention, a ring-shaped submerged floating tube can also be used to form a cage float structure. In this structure, there is no need to set a connecting rod 8 for connecting the submerged floating tube. The structural stabilizing member 5 is connected to the inner wall of the submerged floating tube through a stabilizing pull rod 6.

[0077] As a specific implementation of the present utility model, the design of the first buoyant tube 1 and the second buoyant tube 9 is as follows: Figure 4 As shown, not only can two submersible buoys of the same size be used as the first submersible buoy 1 and the second submersible buoy 9, but also Figure 5 As shown, two submersible tubes of different sizes are used as the first submersible tube 1 and the second submersible tube 9 respectively, and the annular outer circle radius R1 of the first submersible tube 1 is controlled to be smaller than the annular inner circle radius R2 of the second submersible tube 9. In this way, the net cage floating structure forms a structure similar to a truncated cone that is small on the top and large on the bottom. In this way, the net cage floating structure is more stable and will not easily tip over. In addition, when impacted by seawater, the volume loss rate of the net cage floating structure of different diameters is smaller than that of the net cage floating structure of the same diameter, and the flow resistance and deformation resistance are stronger.

[0078] The submerged floating tubes constituting the cage buoyancy structure may also adopt a three-piece structural layout, which are respectively a first submerged floating tube 1, a second submerged floating tube 9 and a third submerged floating tube 10, such as Figure 6-Figure 10 shown.

[0079] The first distribution form of the three snorkels is as follows Figure 6 As shown, in the same cross-sectional plane, the cross-sectional centers of the first submersible tube 1, the second submersible tube 9 and the third submersible tube 10 are on the same vertical line, and the first submersible tube 1, the second submersible tube 9 and the third submersible tube 10 share the same rotation axis. At this time, the same connecting rod 8 is connected to the first submersible tube 1, the second submersible tube 9 and the third submersible tube 10 at the same time, that is, only one group of several connecting rods 8 is needed, and the structural stabilizing member 5 is connected to the inner wall of the third submersible tube 10 through the stabilizing pull rod 6.

[0080] The second distribution form of the three snorkels is as follows Figure 7 As shown, in the same cross-sectional plane, the cross-sectional centers of the first submersible buoy tube 1, the second submersible buoy tube 9 and the third submersible buoy tube 10 are distributed in a triangular shape, and the second submersible buoy tube 9 and the third submersible buoy tube 10 are located on the bottom side, and the second submersible buoy tube 9 and the third submersible buoy tube 10 are on the same horizontal plane, and the first submersible buoy tube 1, the second submersible buoy tube 9 and the third submersible buoy tube 10 share the same axis of rotation. At this time, independent connecting rods 8 need to be provided between the first submersible buoy tube 1 and the second submersible buoy tube 9, between the second submersible buoy tube 9 and the third submersible buoy tube 10, and between the third submersible buoy tube 10 and the first submersible buoy tube 1, that is, three groups of connecting rods 8 for connecting the submersible tubes are required, and the structural stabilizing member 5 is connected to the inner wall of the third submersible tube 10 through a stabilizing pull rod 6.

[0081] The third distribution form of the three snorkels is as follows Figure 8 As shown, in the same cross-sectional plane, the cross-sectional centers of the first submersible buoy tube 1, the second submersible buoy tube 9 and the third submersible buoy tube 10 are distributed in the shape of an isosceles triangle, and the second submersible buoy tube 9 and the third submersible buoy tube 10 are located on the bottom side, and the second submersible buoy tube 9 and the third submersible buoy tube 10 are on the same horizontal plane, and the first submersible buoy tube 1, the second submersible buoy tube 9 and the third submersible buoy tube 10 share the same axis of rotation. At this time, independent connecting rods 8 need to be provided between the first submersible buoy tube 1 and the second submersible buoy tube 9, between the second submersible buoy tube 9 and the third submersible buoy tube 10, and between the third submersible buoy tube 10 and the first submersible buoy tube 1, that is, three groups of connecting rods 8 for connecting the submersible tubes are required, and the structural stabilizing member 5 is connected to the inner wall of the third submersible tube 10 through a stabilizing pull rod 6.

[0082] The third distribution form of the three snorkels is as follows Fig. 9 As shown, in the same cross-sectional plane, the cross-sectional centers of the first submersible snorkel 1, the second submersible snorkel 9 and the third submersible snorkel 10 are distributed in a triangular shape, the cross-sectional centers of the first submersible snorkel 1 and the third submersible snorkel 10 are on the same vertical straight line, the annular outer circle radius R1 of the first submersible snorkel 1 is smaller than the annular inner circle radius R2 of the second submersible snorkel 9, the first submersible snorkel 1, the second submersible snorkel 9 and the third submersible snorkel 10 share the same axis of rotation, at this time, independent connecting rods 8 need to be set between the first submersible snorkel 1 and the second submersible snorkel 9, between the second submersible snorkel 9 and the third submersible snorkel 10, and between the third submersible snorkel 10 and the first submersible snorkel 1, that is, three groups of connecting rods 8 for connecting the submersible tubes are required, and the structural stabilizing member 5 is connected to the third submersible tube 10 through a stabilizing pull rod 6.

[0083] The third distribution form of the three snorkels is as follows Fig.10As shown, in the same cross-sectional plane, the cross-sectional centers of the first submersible snorkel 1, the second submersible snorkel 9 and the third submersible snorkel 10 are distributed in a triangular shape, the cross-sectional centers of the first submersible snorkel 1 and the third submersible snorkel 10 are on the same vertical straight line, the annular outer circle radius R1 of the first submersible snorkel 1 is greater than the annular inner circle radius R2 of the second submersible snorkel 9, the first submersible snorkel 1, the second submersible snorkel 9 and the third submersible snorkel 10 share the same axis of rotation, at this time, independent connecting rods 8 need to be set between the first submersible snorkel 1 and the second submersible snorkel 9, between the second submersible snorkel 9 and the third submersible snorkel 10, and between the third submersible snorkel 10 and the first submersible snorkel 1, that is, three groups of connecting rods 8 for connecting the submersible tubes are required, and the structural stabilizing member 5 is connected to the third submersible tube 10 through a stabilizing pull rod 6.

[0084] By adopting the cage float structure design of the utility model, the submerged floating tube can be formed by welding the metal pipe after winding it into an arc, or by bending it into an arc and then assembling it through flange connection; when the submerged floating tube is made of metal pipe, anti-corrosion measures combining coating with anti-corrosion paint and sacrificial anode protection can be adopted on the surface of the metal pipe.

[0085] By adopting the cage buoy structure design of the utility model, its submerged floating tube is more conducive to being made of composite material reinforced HDPE pipe. An illustrative structure of a feasible composite material reinforced HDPE pipe is given: it includes an inner tube, an intermediate reinforcement layer and an outer tube distributed in sequence from the inside to the outside, the inner tube and the outer tube are both HDPE tubes, the intermediate reinforcement layer includes at least one glass fiber tape layer, the glass fiber tape layer is composed of at least two glass fiber reinforced tapes, each glass fiber reinforced tape of the same glass fiber tape layer is distributed on the circumferential outer wall of the inner tube along the circumferential direction of the pipe, and each glass fiber reinforced tape extends along the axial direction of the pipe; compared with metal pipes, composite material reinforced HDPE pipes are light in weight, high in strength, and have certain toughness, can provide a larger floating support structure for aquaculture cages, and more reliably ensure the posture of aquaculture cages in seawater.

[0086] The cage float structure is also equipped with an automatic control system for realizing automatic floating and sinking of the submersible buoy. The automatic control system can adopt a combination of controller + sensor + solenoid valve. The solenoid valves are installed at each liquid inlet, liquid discharge port, air intake and exhaust port, and are used to control the liquid intake, liquid discharge, air intake and exhaust of the storage compartment 11 respectively. The sensor is used to detect parameters such as wind speed and direction on the sea surface. The controller is used to receive data from the sensor and control the opening and closing of each solenoid valve.

[0087] When using an automatic control system to control the sinking and buoyancy of the submersible buoy, unified control or independent control can be performed, that is, all the storage compartments 11 in a single submersible buoy can be simultaneously filled with water and exhausted, thereby realizing the overall sinking and buoyancy of the entire net cage, or the water intake and exhaust of a single storage compartment 11 in a single submersible buoy can be realized, thereby realizing the sinking and buoyancy of a certain position or area of ​​the net cage, so that when the net cage is tilted, the posture of the net cage can be adjusted in time to ensure the stability of the net cage.

[0088] Through the automatic control system, the floating structure of the cage can be stably submerged in a certain position underwater, so that the water surface position of the entire cage can meet the normal needs of aquaculture, and the floating structure of the cage can effectively avoid the wind and waves on the sea surface; when a strong typhoon strikes, the sinking and floating function of the floating structure of the cage is automatically controlled to allow the cage to dive to a water level that can effectively prevent strong typhoons.

[0089] The anchoring method of the aquaculture cage of the utility model is determined based on the deep sea waves, currents, hydrology and seabed geological sampling data, and can adopt but not limited to the following anchoring methods: anchoring is carried out by piling anchoring, using steel anchor rods, the pile depth is not less than 10 meters, and the entry angle of the anchor rod is not greater than 45°.

[0090] The aquaculture cage of the utility model has a large aquaculture water area, low unit aquaculture cost and good economy. When a single submersible buoy is used as the cage floating structure, the diameter of the single cage is 100-120 meters, the cage depth is 10-15 meters, and the aquaculture water body can reach 70,000-170,000 cubic meters. It can be used in sea areas 20 nautical miles offshore, with a water depth of 25-45 meters and a wave height of 10-16 meters. It can resist a water flow rate of 1.5-2 meters per second. When two or more submersible buoys are used as the cage floating structure, the diameter of the single cage can reach 180-200 meters, which is suitable for deep and distant sea waters. The spacing between anchor cables in the circumferential direction of the cage is not more than 15 meters. According to the arrangement of the anchor rope, the cage can be installed in two forms: leaking out of the water and being flush with the water surface, that is, the upper positions of the horizontal support 3 and the vertical rod 2 can be exposed above the water surface or flush with the water surface.

[0091] The aquaculture cage of the utility model has a submerged buoyancy tube arranged downward, which minimizes the influence of wind and waves on the cage frame, effectively prolongs the service life of the submerged buoyancy tube and the requirement for the strength of the cage structure. The submerged buoyancy tube of the cage is arranged downward, which is less affected by the wind and waves on the sea surface and has a stronger ability to resist wind and waves. When the wave height is 8 meters and the wind speed is 40m / s, the cage does not need to dive, which effectively reduces the influence on the farmed fish. Before the arrival of a super typhoon, the cage can dive to 7-10 meters below the water surface by deflating the air bag, and will not be affected by the typhoon and red tide. After the typhoon, the air bag is inflated and drained, so that the cage rises to a predetermined height.

[0092] The lifting and lowering is smooth, and it can dive to the specified depth within half an hour. The submersible buoy has a built-in air bag, and the wall of the air bag section has holes, which makes the water inlet and outlet fast; it adopts a multi-chamber design and individual control, and the net cage rises and sinks smoothly, and the net cage rises and sinks at an angle of no more than 10°.

[0093] The aquaculture cage of the present invention can also cooperate with the fish detection system, water environment detection system, net cleaning robot and intelligent centralized feeding system that communicate with the data monitoring network. Through real-time monitoring and data analysis of the behavior of the farmed fish in the cage, seawater hydrological information and meteorological information, precise feeding of farmed fish can be achieved, and intelligent deep-sea aquaculture can be realized, effectively improving the aquaculture efficiency of marine ranches.

[0094] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A large-scale typhoon-resistant deep-sea aquaculture cage, characterized by: The breeding cage comprises a) The cage buoyancy structure located under the water surface is used to bear the overall sinking and floating of the aquaculture cage and serves as the main supporting structure of the aquaculture cage. The net cage buoyancy structure has at least one ring-shaped submerged buoyancy tube; b) an upper low-resistance net hanging structure located above the net cage floating structure, the upper low-resistance net hanging structure having a plurality of vertical rods distributed in an annular shape at intervals, the vertical rods having an upper end and a lower end, the lower end of the vertical rods being connected to the net cage floating structure; c) a net, which is disposed as a whole in the internal space formed by the upper net hanging structure and the net cage floating structure, and the upper part of the net is connected to the upper ends of the vertical rods of the upper net hanging structure; The upper low-resistance net hanging structure has two states under the action of the net cage floating structure: In the first state, at most the upper part of the vertical rod is above the water surface; in the second state, the vertical rod is completely below the water surface.

2. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1 is characterized by: The net cage buoyancy structure has two or more submerged floating tubes, the two or more submerged floating tubes share the same rotation axis, and in the direction of the rotation axis, at least two submerged floating tubes are staggered; The cage buoy structure also has a plurality of connecting rods, which are arranged between the submerged buoyant tubes, so that the submerged buoyant tubes and the connecting rods together form an integrally annular load-bearing structure.

3. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 2 is characterized by: The cage buoy structure has two submerged floating tubes, and the annular outer circle radius R1 of the upper submerged floating tube of the two submerged floating tubes is smaller than the annular inner circle radius R2 of the lower submerged floating tube.

4. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 2 is characterized by: The net cage buoyancy structure has three submerged floating tubes, which share the same rotation axis, and in the same cross-sectional plane, the cross-sectional centers of the three submerged floating tubes are distributed in a triangular shape.

5. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1 or 2, characterized in that: A structural stabilizing member is also provided in the middle position of the cage float structure. The structural stabilizing member is a circular ring or a circular plate, and the structural stabilizing member and the submersible buoy share the same rotation axis. The structural stabilizing member is connected to at least the lowest submersible buoy through several stabilizing rods, and the stabilizing rods are distributed radially outward with the structural stabilizing member as the center point.

6. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 2 is characterized by: The connecting rod is formed by buckling a pair of clamping blocks, and semicircular grooves for accommodating the buoyant tube to be embedded are respectively opened on both sides of the clamping blocks, and a circular fixing groove for fixing the buoyant tube is formed together after the two clamping blocks are buckled.

7. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 6 is characterized by: A reinforcing rod is further connected between two adjacent connecting rods.

8. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1 is characterized by: A transverse brace is also connected between two adjacent vertical rods.

9. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1, characterized in that: The submersible buoy has storage compartments and sealed compartments distributed in the submersible tube, and the storage compartments and sealed compartments are sequentially spaced along the circumferential direction of the submersible tube. The storage compartment is a hollow compartment, and the submersible tube is also provided with a liquid inlet, a liquid discharge port, an air inlet and an air outlet connected to the storage compartment. When no air is introduced into the storage tank, the space in the storage tank is used as a water injection tank for the circulation of seawater. In this state, the aquaculture cage sinks to the second state; When air is taken into the storage cabin, the space in the storage cabin is used as an inflatable cabin for gas circulation. In this state, the breeding cage floats up to the first state.

10. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 9, characterized in that: An air bag may also be installed in each of the storage compartments, and the air inlet and the air outlet are in communication with the air bag.

11. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1, characterized in that: The bottom end of the vertical rod is also connected with a leveling sinker.

12. The large-scale typhoon-resistant deep-sea aquaculture cage according to claim 1, characterized in that: The net cage buoy structure is also equipped with a set of automatic control systems for realizing automatic floating and sinking of the submerged buoy tube.

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