Module assembly type mariculture net cage, testing device and testing method of module assembly type mariculture net cage

Abstract

The invention discloses a module assembly type mariculture net cage, a testing device and a testing method thereof. The module assembly type mariculture net cage comprises a supporting frame; each netting structure comprises a netting fixing frame, a netting and a pressure sensor, the pressure sensors are arranged between the netting and the netting fixing frame, and the multiple netting structures are installed on the supporting frame; the lifting mechanism is used for adjusting the height of the supporting frame; and the six-dimensional force sensor is mounted on the lifting mechanism and is used for detecting the hydrodynamic load and the change of a surrounding wave flow field. The stress condition of the netting can be detected through the pressure sensor, the stress condition of the whole culture net cage can be detected through the six-dimensional force sensor, and therefore the height of the supporting frame is changed through the lifting mechanism, and the position of the supporting frame is adjusted in environments with different wave heights so as to better resist storm waves; moreover, the modular assembly type mariculture net cage adopts a modular design, and can be mutually spliced to form a large-scale marine ranch.

Description

Technical Field

[0001] The present application relates to the technical field of marine ranching, and in particular to a modular assembled marine aquaculture cage, a testing device and a testing method thereof. Background Art

[0002] With the depletion of global fishery resources and the increase in demand for aquaculture, marine ranching, as an innovative fishery model, has gradually become an important means to ensure the supply of aquatic resources, promote economic development and protect the ecology. Marine ranching (seafarming) refers to the use of large-scale fishery facilities and systematic management systems in a certain sea area, using the natural marine ecological environment to gather artificially released economic marine organisms, and to carry out planned and purposeful marine stocking of fish, shrimp, shellfish, algae and other marine resources at sea, just like grazing cattle and sheep on land. As the core facility of marine ranching, the stability and safety of aquaculture cages directly affect the aquaculture effect and the growth environment of aquatic species. In particular, the bottom-lifting aquaculture cages have received widespread attention due to their large bottom contact area and stability.

[0003] However, the complexity and harshness of the marine environment (such as surges, tides, typhoons, etc.) place extremely high demands on cage design. Especially in deep water areas, cage structures are prone to deformation, displacement, or even damage under dynamic loads such as waves and tides. Therefore, ensuring the stability and safety of cages in complex marine environments has become a key technical challenge in the construction of marine ranches. Moreover, whether the cages are easy to connect and whether the connections are reliable are also issues that need to be considered in the process of building marine ranches.

[0004] In order to effectively meet these challenges, it is particularly important to conduct tank experiments. Tank experiments can simulate real ocean hydrodynamics in a controlled environment and test the force and deformation response of cages under dynamic loads such as currents and waves. Experimental data can provide scientific guidance for the structural design of aquaculture cages, and help further improve the stability, reliability and adaptability of bottom-mounted cages in harsh environments. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a modular assembled marine aquaculture cage that can withstand wind and waves and is not easily deformed, displaced or damaged by them, and the cages are easy to connect.

[0006] The present application also proposes a testing device and a testing method for the above-mentioned modular assembled marine aquaculture cage, which can detect and test the above-mentioned modular assembled marine aquaculture cage, so as to verify the stability and reliability of the modular assembled marine aquaculture cage in harsh environments.

[0007] The modular assembled marine aquaculture cage according to the first embodiment of the present application includes:

[0008] A support frame, wherein the support frame is a frame structure;

[0009] A net structure, the net structure comprising a net fixing frame, a net and a pressure sensor, the net covering the hollow part of the net fixing frame, the pressure sensor being arranged between the net and the net fixing frame; there are a plurality of net structures and all are mounted to the support frame, and each of the net structures together encloses a breeding space;

[0010] A lifting mechanism, which is installed at the bottom of the support frame and is used to adjust the height of the support frame;

[0011] A six-dimensional force sensor, which is installed on the lifting mechanism and is used to detect changes in hydrodynamic loads and surrounding wave and flow fields;

[0012] There are at least two modular assembled marine aquaculture cages, and the support frames of the modular assembled marine aquaculture cages can be connected to each other.

[0013] The modular assembled marine aquaculture cage according to the embodiment of the present application has at least the following beneficial effects: it can detect the stress condition of the net through a pressure sensor, and detect the stress condition of the entire aquaculture cage through a six-dimensional force sensor, thereby changing the height of the support frame through a lifting mechanism, thereby adjusting the position of the support frame in environments with different wave heights to better resist wind and waves; moreover, the modular assembled marine aquaculture cage adopts a modular design and can be assembled together to form a large-scale marine ranch.

[0014] According to some embodiments of the present application, the support frame includes a vertical column arranged vertically and a horizontal column arranged horizontally, the end of the horizontal column is connected to the vertical column, and the vertical column and the horizontal column together constitute the support frame.

[0015] According to some embodiments of the present application, the support frame further includes an angle bracket, and the angle bracket is provided with two mutually perpendicular connecting surfaces, the vertical column is connected to one of the connecting surfaces, and the horizontal column is connected to the other connecting surface.

[0016] According to some embodiments of the present application, the connecting surface is provided with a mounting hole, the sides of the vertical column and the horizontal column are provided with sliding grooves, and the support frame also includes a T-shaped bolt and a nut, the head of the T-shaped bolt can slide in the sliding groove, and the tail of the T-shaped bolt can pass through the mounting hole and be threadedly connected to the nut.

[0017] According to some embodiments of the present application, one end of the vertical column is connected to the lifting mechanism, and the other end of the vertical column extends out from the water surface.

[0018] According to some embodiments of the present application, the support frame is an aluminum alloy structure.

[0019] According to some embodiments of the present application, the net structure further includes a connecting piece, the net is connected to the net fixing frame via the connecting piece, and the pressure sensor is mounted on the connecting piece.

[0020] According to some embodiments of the present application, the lifting mechanism includes a hydraulic telescopic rod and a hydraulic cylinder, the hydraulic telescopic rod is inserted into the hydraulic cylinder, and the hydraulic cylinder is able to push out the hydraulic telescopic rod under the pressure of hydraulic oil.

[0021] According to the second aspect of the present application, the testing device is used to test the above-mentioned modular assembled marine aquaculture cage, including:

[0022] An experimental water pool, the experimental water pool carries water, and the modular assembled marine aquaculture cage is arranged in the experimental water pool;

[0023] A wave height meter installed in the experimental pool to detect wave height;

[0024] A wave maker, which is installed in the experimental water pool and is used to generate waves;

[0025] A controller, the pressure sensor, the lifting mechanism, the six-dimensional force sensor, the wave height meter and the wave-making machine are all electrically connected to the controller.

[0026] The test device according to the embodiment of the present application has at least the following beneficial effects: through the test device, the wind and wave resistance of the modular assembled marine aquaculture cage can be tested, thereby verifying from the perspective of experimental data whether the height, size and structural strength of the aquaculture cage meet the requirements under wind and wave conditions.

[0027] According to the third aspect of the present application, the testing method is performed based on the above-mentioned testing device and includes the following steps:

[0028] Installing the modular assembled marine aquaculture cage into the experimental water pool, and injecting water into the experimental water pool;

[0029] Starting the lifting mechanism to adjust the height of the support frame;

[0030] Starting the wave machine to generate waves in the experimental pool;

[0031] The force changes of the pressure sensor and the six-dimensional force sensor under waves are recorded to test the wind and wave resistance of the modular assembled marine aquaculture cage.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide further understanding of the technical solution disclosed in the present application and constitute a part of the specification. Together with the embodiments disclosed in the present application, they are used to explain the technical solution disclosed in the present application and do not constitute a limitation on the technical solution disclosed in the present application.

[0034] Figure 1 This is a three-dimensional diagram of a modular assembled marine aquaculture cage according to the first embodiment of the present application;

[0035] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0036] Figure 3 This is a three-dimensional diagram of the net structure in the modular assembled marine aquaculture cage according to the first embodiment of the present application;

[0037] Figure 4 This is a three-dimensional diagram of the connector in the modular assembled marine aquaculture cage according to the first aspect of the present application;

[0038] Figure 5 This is a three-dimensional diagram of the lifting mechanism in the modular assembled marine aquaculture cage according to the first embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of a test device for testing a single module assembled marine aquaculture cage according to an embodiment of the second aspect of the present application;

[0040] Figure 7 This is a schematic diagram of a test device for testing a plurality of modular assembled marine aquaculture cages according to an embodiment of the second aspect of the present application.

[0041] Figure markings: 100-support frame, 110-vertical column, 120-horizontal column, 130-angle code, 131-mounting hole, 140-T-bolt, 150-nut, 200-net structure, 210-net fixing frame, 220-net, 230-pressure sensor, 240-connecting part 300-lifting mechanism, 310-hydraulic telescopic rod, 320-hydraulic cylinder, 400-six-dimensional force sensor, 500-experimental water pool, 600-wave height meter. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0043] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0046] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] With the depletion of global fishery resources and the increase in demand for aquaculture, marine ranching, as an innovative fishery model, has gradually become an important means to ensure the supply of aquatic resources, promote economic development and protect the ecology. Marine ranching (seafarming) refers to the use of large-scale fishery facilities and systematic management systems in a certain sea area, using the natural marine ecological environment to gather artificially released economic marine organisms, and to carry out planned and purposeful marine stocking of fish, shrimp, shellfish, algae and other marine resources at sea, just like grazing cattle and sheep on land. As the core facility of marine ranching, the stability and safety of aquaculture cages directly affect the aquaculture effect and the growth environment of aquatic species. In particular, the bottom-lifting aquaculture cages have received widespread attention due to their large bottom contact area and stability.

[0048] However, the complexity and harshness of the marine environment (such as surges, tides, typhoons, etc.) place extremely high demands on cage design. Especially in deep water areas, cage structures are prone to deformation, displacement, or even damage under dynamic loads such as waves and tides. Therefore, ensuring the stability and safety of cages in complex marine environments has become a key technical challenge in the construction of marine ranches. Moreover, whether the cages are easy to connect and whether the connections are reliable are also issues that need to be considered in the process of building marine ranches.

[0049] In order to effectively meet these challenges, it is particularly important to conduct tank experiments. Tank experiments can simulate real ocean hydrodynamics in a controlled environment and test the force and deformation response of cages under dynamic loads such as currents and waves. Experimental data can provide scientific guidance for the structural design of aquaculture cages, and help further improve the stability, reliability and adaptability of bottom-mounted cages in harsh environments.

[0050] In this regard, the present application proposes a modular assembled marine aquaculture cage, which can detect the stress condition of the net 220 through a pressure sensor 230, and detect the stress condition of the entire aquaculture cage through a six-dimensional force sensor 400, thereby changing the height of the support frame 100 through a lifting mechanism 300, thereby adjusting the position of the support frame 100 in an environment with different wave heights to better resist wind and waves; moreover, this modular assembled marine aquaculture cage adopts a modular design and can be assembled together to form a large-scale marine ranch.

[0051] In addition, the present application also proposes a testing device and a corresponding testing method for the above-mentioned modular assembled marine aquaculture cages. Through the testing device, the wind and wave resistance of the modular assembled marine aquaculture cages can be tested, thereby verifying from the perspective of experimental data whether the height, size and structural strength of the aquaculture cages meet the requirements under wind and wave conditions.

[0052] Reference Figure 1The modular assembled marine aquaculture cage in the embodiment of the first aspect of the present application comprises a support frame 100, a net structure 200, a lifting mechanism 300 and a six-dimensional force sensor 400. The support frame 100 is the main structure of the modular assembled marine aquaculture cage, and the net structure 200 is covered on the support frame 100 to form a breeding space, in which aquatic products can be cultured. The lifting mechanism 300 is used to lift the support frame 100 to change its height in the water, and the six-dimensional force sensor 400 is used to detect the force of the modular assembled marine aquaculture cage in wind and waves, so as to feedback to the lifting mechanism 300 to adjust the position of the support frame 100.

[0053] Specifically, the support frame 100 is a frame structure. Figure 3 and Figure 4 The net structure 200 includes a net fixing frame 210, a net 220 and a pressure sensor 230, wherein the net 220 covers the hollow part of the net fixing frame 210, and the pressure sensor 230 is arranged between the net 220 and the net fixing frame 210, so that when the net 220 is shaken by the impact of the water flow, the pressure sensor 230 can detect the impact force on the net 220, thereby calculating the current force condition of the net structure 200. There are multiple net structures 200 and they are all installed on the support frame 100, and each net structure 200 together encloses a breeding space, which is used to breed aquatic products.

[0054] The lifting mechanism 300 is installed at the bottom of the support frame 100, and is used to adjust the height of the support frame 100. The six-dimensional force sensor 400 is installed on the lifting mechanism 300, and is used to detect the changes in the hydrodynamic load and the surrounding wave flow field. The six-dimensional force sensor is a sensor that can detect multi-directional force conditions. It is a prior art, and the specific structure and working principle are not repeated here.

[0055] Among them, the number of modular assembled marine aquaculture cages is at least two, and the support frames 100 of each modular assembled marine aquaculture cage can be connected to each other, so that the number of modular assembled marine aquaculture cages can be increased or decreased according to actual conditions, and has stronger environmental adaptability.

[0056] Further, the support frame 100 includes a vertical column 110 arranged vertically and a horizontal column 120 arranged horizontally, the end of the horizontal column 120 is connected to the vertical column 110, and each vertical column 110 and horizontal column 120 together constitute the support frame 100. The number of the vertical columns 110 and the horizontal columns 120 can be increased or decreased according to actual conditions, and the structural strength of the support frame 100 can be improved by increasing the number of the vertical columns 110 and the horizontal columns 120 in the support frame 100.

[0057] For the combination of the vertical column 110 and the horizontal column 120, refer to Figure 2The support frame 100 also includes an angle code 130, which is provided with two mutually perpendicular connecting surfaces. The vertical column 110 is connected to one of the connecting surfaces, and the horizontal column 120 is connected to the other connecting surface, so that the angle code 130 can connect the vertical column 110 and the horizontal column 120 to each other, and make the vertical column 110 and the horizontal column 120 perpendicular to each other.

[0058] Furthermore, the connection surface of the angle bracket 130 is provided with a mounting hole 131, and the sides of the vertical column 110 and the horizontal column 120 are provided with a slide groove, and the support frame 100 further includes a T-shaped bolt 140 and a nut 150. The head of the T-shaped bolt 140 can slide in the slide groove, and the tail of the T-shaped bolt 140 can pass through the mounting hole 131 and be threadedly connected with the nut 150.

[0059] Furthermore, one end of the vertical column 110 is connected to the lifting mechanism 300, and the other end of the vertical column 110 extends out of the water surface, so that the user can easily confirm the specific position of the support frame 100 in the water. Specifically, the support frame 100 is an aluminum alloy structure, which is light in weight and has good corrosion resistance, so that it can be in contact with seawater for a long time and has a longer service life.

[0060] Specifically, refer to Figure 3 The net structure 200 further includes a connecting member 240, and the net 220 is connected to the net fixing frame 210 through the connecting member 240 to complete the fixing of the net 220. Figure 4 The pressure sensor 230 is installed on the connecting piece 240, which is specifically a thin film sensor. When the net 220 is subjected to force due to the influence of wind and waves, the net 220 pulls the connecting piece 240, so that the pressure sensor 230 can detect the tension of the net 220, thereby calculating the current force condition of the net structure 200.

[0061] For the specific structure of the lifting mechanism 300, a hydraulic telescopic rod, an electric telescopic rod, a pneumatic telescopic rod or a screw mechanism can be used. In the present embodiment, the lifting mechanism 300 includes a hydraulic telescopic rod 310 and a hydraulic cylinder 320. The hydraulic telescopic rod 310 is inserted into the hydraulic cylinder 320. The hydraulic cylinder 320 is subjected to the pressure of the hydraulic oil to push out the hydraulic telescopic rod 310, thereby lifting the support frame 100.

[0062] A testing device in the second embodiment of the present application is used to test the above-mentioned modular assembled marine aquaculture cage. Figure 6The test device includes an experimental pool 500, a wave height meter 600, a wave maker and a controller. The experimental pool 500 is the main structure of the test device, which carries water, and the modular assembled marine aquaculture cage is arranged in the experimental pool 500. The wave height meter 600 is installed in the experimental pool 500 to detect the wave height. The wave maker (not shown) is installed in the experimental pool 500 to generate waves. The controller is used to control the test device, and the pressure sensor 230, the lifting mechanism 300, the six-dimensional force sensor 400, the wave height meter 600 and the wave maker are all electrically connected to the controller. Thereby, the stress conditions of the net 220 and the stress conditions of the support frame 100 can be recorded by the controller, and the controller can control the lifting mechanism 300 to change the height of the support frame 100, and can control the wave maker to adjust the output intensity of the wave, and the actual wave height is recorded by the wave height meter 600.

[0063] Specifically, the test device can perform stress testing on a single module assembled marine aquaculture cage. Figure 7 It can also perform overall force testing on an assembly composed of multiple modular assembled marine aquaculture cages.

[0064] The testing method in the third aspect of the present application is performed on the above-mentioned testing device, and includes the following steps:

[0065] S100. Install the modular assembled marine aquaculture cage into the experimental pool 500 and inject water into the experimental pool 500;

[0066] S200 starts the lifting mechanism 300, adjusts the height of the support frame 100, and performs a force test on the support frame 100 at the height;

[0067] S300. Start the wave machine to generate waves in the experimental pool 500;

[0068] S400. Record the force changes of the pressure sensor 230 and the six-dimensional force sensor 400 under waves to test the wind and wave resistance of the modular assembled marine aquaculture cage.

[0069] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A modular assembled marine aquaculture cage, characterized in that: include: A support frame, wherein the support frame is a frame structure; A net structure, the net structure comprising a net fixing frame, a net and a pressure sensor, the net covering the hollow part of the net fixing frame, the pressure sensor being arranged between the net and the net fixing frame; there are a plurality of net structures and all are mounted to the support frame, and each of the net structures together encloses a breeding space; A lifting mechanism, which is installed at the bottom of the support frame and is used to adjust the height of the support frame; A six-dimensional force sensor, which is installed on the lifting mechanism and is used to detect changes in hydrodynamic loads and surrounding wave and flow fields; There are at least two modular assembled marine aquaculture cages, and the support frames of the modular assembled marine aquaculture cages can be connected to each other.

2. The modular assembled marine aquaculture cage according to claim 1 is characterized by: The support frame includes a vertical column arranged vertically and a horizontal column arranged horizontally, the end of the horizontal column is connected to the vertical column, and each of the vertical columns and the horizontal column together constitutes the support frame.

3. The modular assembled marine aquaculture cage according to claim 2 is characterized by: The support frame also includes an angle bracket, which is provided with two mutually perpendicular connecting surfaces, the vertical column is connected to one of the connecting surfaces, and the horizontal column is connected to the other connecting surface.

4. The modular assembled marine aquaculture cage according to claim 3 is characterized by: The connecting surface is provided with a mounting hole, and the sides of the vertical column and the horizontal column are provided with sliding grooves. The support frame also includes a T-shaped bolt and a nut. The head of the T-shaped bolt can slide in the sliding groove, and the tail of the T-shaped bolt can pass through the mounting hole and be threadedly connected with the nut.

5. The modular assembled marine aquaculture cage according to claim 2, characterized in that: One end of the vertical column is connected to the lifting mechanism, and the other end of the vertical column extends out from the water surface.

6. The modular assembled marine aquaculture cage according to claim 1, characterized in that: The support frame is an aluminum alloy structure.

7. The modular assembled marine aquaculture cage according to claim 1, characterized in that: The net structure also includes a connecting piece, the net is connected to the net fixing frame via the connecting piece, and the pressure sensor is mounted on the connecting piece.

8. The modular assembled marine aquaculture cage according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic telescopic rod and a hydraulic cylinder. The hydraulic telescopic rod is inserted into the hydraulic cylinder. The hydraulic cylinder is able to push out the hydraulic telescopic rod under the pressure of hydraulic oil.

9. A testing device for the modular assembled marine aquaculture cage according to any one of claims 1 to 8, characterized in that: include: An experimental water pool, the experimental water pool carries water, and the modular assembled marine aquaculture cage is arranged in the experimental water pool; A wave height meter, which is installed in the experimental water pool to detect the wave height; A wave maker, which is installed in the experimental water pool and is used to generate waves; A controller, the pressure sensor, the lifting mechanism, the six-dimensional force sensor, the wave height meter and the wave-making machine are all electrically connected to the controller.

10. A testing method for the testing device according to claim 9, characterized in that: include: Installing the modular assembled marine aquaculture cage into the experimental water pool, and injecting water into the experimental water pool; Starting the lifting mechanism to adjust the height of the support frame; Starting the wave machine to generate waves in the experimental pool; The force changes of the pressure sensor and the six-dimensional force sensor under waves are recorded to test the wind and wave resistance of the modular assembled marine aquaculture cage.

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