Marine TLP fan-net cage integrated culture system

Abstract

The invention relates to the technical field of aquaculture and ocean engineering equipment, and discloses an offshore TLP fan-net cage integrated aquaculture system which comprises a bearing platform, the bearing platform is horizontally arranged, a mounting base is mounted on one side of the top surface of the bearing platform, and a plurality of tension legs are fixedly connected to the bottom of the bearing platform; the fan assembly is fixedly mounted on the mounting base, and the fan assembly is perpendicular to the bearing flat groove; a plurality of tying ropes are arranged below the bearing platform along the edge of the bearing platform, the netting is hung below the bearing platform through the tying ropes, and a closed culture space is defined by the netting; the netting counter weight is fixedly arranged on the edge of the bottom of the netting through a steel wire rope; and the fan assembly, the tension leg structure and the netting system form an integrated system with cooperative stress and cooperative operation. According to the device, cooperative operation of wind power generation and aquaculture is achieved, stable structural support and energy guarantee are provided for aquaculture operation, and the anti-storm capacity and operation safety of the whole device are improved.

Description

Technical Field

[0001] This invention relates to the field of aquaculture and marine engineering equipment technology, and in particular to an integrated marine TLP wind turbine-net cage aquaculture system. Background Technology

[0002] Marine wind energy resources and marine fishery resources are important components of marine economic development. With the development of offshore wind power technology and the increasing demand for marine ranching, how to achieve the coordinated utilization of energy development and aquaculture under limited sea area conditions has become an important focus in the fields of marine engineering and marine equipment.

[0003] Existing offshore wind power facilities mainly consist of fixed or floating turbines. In deeper waters, floating turbines are increasingly becoming the dominant technology. Tension leg (TLP) platform turbines, due to their small heave displacement and high overall stability, are suitable for deep-water and deep-sea environments. However, existing TLP offshore turbines are mostly designed for single power generation, leaving the surrounding sea areas largely idle and unutilized, failing to be integrated with other marine production activities. This results in low equipment utilization and limited comprehensive marine development value. Traditional aquaculture cages lack highly stable rigid or semi-rigid support structures, making them prone to attitude changes and positional shifts in harsh sea conditions. Aquaculture cages are mostly floating or simple fixed structures, typically relying on buoys, anchor chains, or pile foundations for positioning, resulting in limited overall resistance to wind, waves, and currents. In open or deep-sea environments, aquaculture cages are susceptible to deformation, displacement, and even damage from large waves and strong currents, leading to netting breakage, escape of farmed organisms, and poor aquaculture safety and stability. In addition, traditional aquaculture cages often require separate power supply, monitoring, and operation and maintenance systems, resulting in high construction and maintenance costs.

[0004] Offshore wind power facilities and marine aquaculture facilities are typically planned and constructed independently, requiring separate sea areas and redundant deployment of foundation structures, anchoring systems, and supporting facilities. This results in low efficiency in marine resource utilization, high engineering costs, and difficulty in meeting the economic and intensive requirements of integrated deep-sea development. Furthermore, the lack of consideration for coordinated layout and load-bearing with aquaculture facilities fails to leverage the stable structural support and protection provided to the aquaculture system, leading to a waste of structural and marine resources. Therefore, there is an urgent need for an integrated platform structure that can simultaneously ensure the stable operation of deep-sea wind power and the safe operation of aquaculture systems. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated offshore TLP wind turbine-cage aquaculture system suitable for deep-sea environments. By integrating a platform with wind turbine components with an aquaculture cage with netting, an intensive development model that combines wind power generation and aquaculture is achieved, thus solving or improving at least one of the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an integrated offshore TLP wind turbine-cage aquaculture system, including... The support platform is horizontally arranged and hollow in the middle. An installation base is installed on one side of the top surface of the support platform. Several legs are fixedly connected to the bottom of the support platform to limit the vertical displacement of the platform and reduce the tension caused by wind and waves. A fan assembly is fixedly installed on the mounting base, and the fan assembly is perpendicular to the bearing groove; The netting has several tethering ropes along its edge below the supporting platform. The netting is suspended below the supporting platform by the tethering ropes, and the netting encloses a closed breeding space. The mesh counterweight is fixedly installed on the bottom edge of the mesh by steel wire rope.

[0007] Preferably, the support platform is made of stainless steel that is resistant to marine corrosion.

[0008] Preferably, the electrical energy generated by the wind turbine assembly is supplied to the electrical equipment inside the cage. The wind turbine assembly includes an offshore wind turbine generator set with a single unit capacity of not less than 5MW. The generator set is fixedly connected to the mounting base via a flange, and a cable channel is provided at the bottom of the generator set.

[0009] Preferably, the diameter of the tethering rope is 20-30 mm, and the number of tethering ropes is 8-12.

[0010] Preferably, the tension leg is made of 4 to 6 high-strength composite material cables. One end of the tension leg is fixedly connected to the seabed rock or foundation through an anchor, and the other end of the tension leg is connected to a tension adjustment device at the bottom of the mounting base.

[0011] Preferably, the mesh counterweight is a precast concrete block, each mesh counterweight weighs 50-100 kg, and the number of mesh counterweights is 16-24 blocks.

[0012] Preferably, the netting is 30-40m high and 18-28m in diameter, with a mesh size of 3-10cm, and the edges of the netting are fixedly connected to the tethering ropes by stainless steel buckles.

[0013] Preferably, the mesh and tethering rope are made of corrosion-resistant, tensile-resistant, durable ultra-high molecular weight polyethylene.

[0014] The present invention discloses the following technical effects: This invention integrates a platform with wind turbine components with an aquaculture cage with netting, transforming the surrounding sea area of ​​the TLP platform, originally used only for wind power generation, into an aquaculture operation area. This achieves a dual-use development model for the sea, increasing the comprehensive utilization rate of marine resources by more than 30% compared to the traditional independent layout of wind turbines and aquaculture facilities. It effectively alleviates the problem of marine resource scarcity in deep-sea development and provides a spatial foundation for large-scale coordinated development of the marine economy.

[0015] This invention leverages the inherent tension leg structure of the TLP platform, combined with a uniformly distributed ring of concrete counterweights at the bottom of the netting, to form a dual anti-disturbance system of "upper tension balance + lower gravity stability." The tension legs can dynamically adjust their tension to balance the platform's buoyancy and external impacts in wind and waves, while the netting counterweights firmly maintain the netting's vertical unfolding shape, preventing wrinkles or displacement caused by ocean currents. In practical applications, the device can withstand wind and wave conditions up to level 12 or higher, significantly reducing the netting damage rate and lowering the risk of escape for aquaculture organisms to below 1%, completely solving the core problem of poor stability in the harsh environment of deep-sea floating cages.

[0016] The integrated design enables the sharing of the basic structure, anchoring system, and operation and maintenance access between the wind turbine and aquaculture facilities. In the traditional model, the wind turbine and aquaculture cages require separate construction of seabed foundations, anchoring devices, and operation and maintenance platforms. However, this device only requires one TLP platform foundation and tension leg anchoring system, which can significantly reduce the investment in basic construction. At the same time, operation and maintenance personnel can complete wind turbine inspections and aquaculture operations through the same platform, avoiding the transportation and labor costs of separate operation and maintenance, improving the overall operation and maintenance efficiency, further reducing the comprehensive cost of deep-sea development, and shortening the project investment payback period by 2-3 years. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the marine TLP wind turbine-cage integrated aquaculture system of the present invention; Figure 2 This is a top view of the marine TLP wind turbine-cage integrated aquaculture system of the present invention; The components include: 1. Supporting platform; 2. Fan assembly; 3. Netting; 4. Netting counterweight; and 5. Tension leg. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1-2 This invention provides an integrated offshore TLP wind turbine-cage aquaculture system, including... The support platform 1 is horizontally arranged and hollow in the middle. An installation base is installed on one side of the top surface of the support platform 1. Several legs 5 are fixedly connected to the bottom of the support platform 1 to limit the vertical displacement of the platform and reduce the tension caused by wind and waves. Fan assembly 2, which is fixedly installed on the mounting base and is perpendicular to the bearing groove; Net 3, with several tethering ropes arranged along its edge below the supporting platform 1, the net 3 is suspended below the supporting platform 1 by the tethering ropes, the net 3 encloses the breeding space; one end of the tethering rope is fixedly connected to the tension leg 5, and the other end is snapped into the net.

[0022] The netting counterweight 4 is fixedly installed on the bottom edge of the netting 3 by steel wire rope. The netting counterweight 4 is evenly distributed in a ring shape to maintain the unfolded shape of the netting 3 in the water and prevent the netting 3 from wrinkling or deforming due to the impact of ocean currents.

[0023] By integrating the TLP-type offshore wind power generation device with aquaculture cages, the coordinated operation of wind power generation and aquaculture can be achieved. While ensuring the normal power generation performance of the wind turbine, it provides stable structural support and energy security for aquaculture operations, thereby improving the overall wind and wave resistance and operational safety of the device.

[0024] By sharing platform infrastructure and sea area, the duplication of wind power facilities and aquaculture facilities can be reduced, the comprehensive utilization efficiency of sea area can be improved, the infrastructure construction cost of deep-sea development and the energy consumption of aquaculture systems can be reduced, and the economy and practicality of marine integrated development equipment can be enhanced.

[0025] Further optimization of the design involves using a marine corrosion-resistant stainless steel platform 1. This platform 1 is a circular stainless steel structure with a diameter of 20-30 meters, designed to withstand seawater salt corrosion and have a service life of over 25 years.

[0026] In a further optimized design, the electrical energy generated by the wind turbine assembly supplies power to the electrical equipment within the cage. The wind turbine assembly 2 includes an offshore wind turbine generator set with a single unit capacity of not less than 5MW. The generator set is fixedly connected to the mounting base via a flange, and a cable channel is provided at the bottom of the generator set to facilitate the transmission of electrical energy to the power distribution equipment below the supporting platform 1.

[0027] Furthermore, the net cage formed by the net 3 is equipped with electrical equipment such as an oxygenation pump, an intelligent monitoring system, and a feeding system. The wind turbine assembly 2 captures wind energy and converts it into electrical energy to power the electrical equipment; any excess electricity can be fed into the regional power grid.

[0028] The wind turbine assembly 2 can directly provide clean energy for aquaculture operations. The generated electricity is prioritized for supplying equipment such as aerators, water quality monitors, and intelligent feeding systems within the net cages. Surplus electricity can be fed into the regional power grid for energy recovery. Compared to traditional aquaculture that relies on external power grids or diesel generators, this device can reduce the aquaculture system's dependence on external energy by more than 70%. According to actual operational data, aquaculture energy costs are reduced by 20%-40%, saving more than 100,000 yuan in electricity and fuel costs per platform per year, while reducing carbon emissions by approximately 50 tons per year, thus achieving both economic and ecological benefits.

[0029] The intelligent monitoring system is a set of modern marine ranching intelligent management and control technologies and complete systems. It can monitor water quality through water quality sensors, effectively preventing the impact of water quality changes on farmed species; it can conduct real-time underwater observation through underwater observation devices to understand the dynamics of aquaculture in real time; the early warning component uses radar and thermoforming scanning devices to capture images of surrounding ships or animals and then issue warnings to drive away ships and animals, prevent collisions, and increase the safety of marine aquaculture.

[0030] In a further optimized design, the diameter of the tethering ropes is 20-30mm, and the number of tethering ropes is 8-12. Several tethering ropes form the mesh of the netting 3, providing support for the netting 3.

[0031] Further optimizing the design, the tension leg 5 utilizes 4-6 high-strength composite material cables. One end of the tension leg 5 is fixedly connected to the seabed rocks or foundation via an anchor, while the other end is connected to a tension adjustment device at the bottom of the mounting base. The high-strength composite material cables used in the tension leg 5 exhibit excellent fatigue resistance and can withstand repeated impacts from wind and waves over extended periods without significant damage. The tension leg 5 can dynamically adjust its tension to balance the platform's buoyancy and external impacts in wind and waves.

[0032] In a further optimized design, the netting counterweight 4 is a precast concrete block, with each counterweight 4 weighing 50-100 kg, and the number of counterweights 4 is 16-24. These are evenly bound to the bottom edge of the netting 3 with steel wire ropes, ensuring the netting 3 remains vertically deployed in the current. The tension legs 5 and the netting counterweights 4 form a synergistic stabilizing structure above and below the supporting platform 1, jointly suppressing the disturbance of the aquaculture space by wind, waves, and currents.

[0033] In a further optimized design, the netting 3 is 30-40m high and 18-28m in diameter, with a mesh size of 3-10cm. The edges of the netting 3 are fixedly connected to the tethering rope via stainless steel buckles.

[0034] The Net 3 features a modular design, with mesh size adjustable from 3-10 cm to suit different aquaculture species (such as fish and shellfish). It supports upgrades to both inner and outer layers. The outer net connects directly to the TLP platform for protection, while the inner net utilizes a four-corner pulley linkage positioning technology for precise raising and lowering. Combined with dynamic positioning and adaptive adjustment, it can adjust the aquaculture depth in real time based on environmental factors such as seawater temperature, light intensity, and feed distribution, meeting the growth needs of organisms at different stages of aquaculture. Furthermore, the platform's pre-reserved aquaculture operation channel is compatible with an intelligent feeding system (feed capacity 1T / H, maximum conveying distance 100m), enabling precise feeding and automated management, improving aquaculture efficiency by 30% and reducing manual intervention.

[0035] Furthermore, the platform is a circular or triangular prism structure formed by three supporting columns, and the reserved aquaculture operation channel is triangular. When the platform is a triangular prism structure, the cross-section is triangular, which has higher stability and can withstand impact forces from all directions.

[0036] The design is further optimized so that the mesh 3 and the tethering rope are made of corrosion-resistant, tensile-resistant, durable ultra-high molecular weight polyethylene. The mesh 3 and tethering rope, made of corrosion-resistant, tensile-resistant ultra-high molecular weight polyethylene, have an 80% higher tensile strength than traditional nylon mesh 3, enhanced anti-aging properties, and extend the replacement cycle of mesh 3 to more than 5 years.

[0037] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated offshore TLP wind turbine-cage aquaculture system, characterized in that: include The support platform (1) is horizontally set and hollow in the middle. An installation base is installed on one side of the top surface of the support platform (1). Several tension legs (5) are fixedly connected to the bottom of the support platform (1) to limit the vertical displacement of the platform and reduce the attitude change caused by wind and waves. A fan assembly is fixedly installed on the mounting base, and the fan assembly is perpendicular to the bearing groove; Net (3), several tie ropes are provided along the edge of the support platform (1) below the net (3), the net (3) is suspended below the support platform (1) by the tie ropes, and the net (3) encloses the breeding space; The mesh weight (4) is fixedly installed on the bottom edge of the mesh (3) by a steel wire rope.

2. The offshore TLP wind turbine-cage integrated aquaculture system according to claim 1, characterized in that: The support platform (1) is made of stainless steel that is resistant to marine corrosion.

3. The integrated offshore TLP wind turbine-cage aquaculture system according to claim 1, characterized in that: The electrical energy generated by the wind turbine assembly is supplied to the electrical equipment inside the cage. The wind turbine assembly includes an offshore wind turbine generator set with a single unit capacity of not less than 5MW. The generator set is fixedly connected to the mounting base through a flange, and a cable channel is provided at the bottom of the generator set.

4. The integrated offshore TLP wind turbine-cage aquaculture system according to claim 1, characterized in that: The diameter of the tethering rope is 20-30 mm, and the number of tethering ropes is 8-12.

5. The offshore TLP wind turbine-cage integrated aquaculture system according to claim 1, characterized in that: The tension leg (5) is made of 4 to 6 high-strength composite material cables. One end of the tension leg (5) is fixedly connected to the seabed rock or foundation through an anchor, and the other end of the tension leg (5) is connected to the tension adjustment device at the bottom of the mounting base.

6. The integrated offshore TLP wind turbine-cage aquaculture system according to claim 1, characterized in that: The mesh counterweight (4) is a precast concrete block, each mesh counterweight (4) weighs 50-100kg, and the number of mesh counterweights (4) is 16-24.

7. The offshore TLP wind turbine-cage integrated aquaculture system according to claim 1, characterized in that: The netting (3) is 30-40m high, the mesh size of the netting (3) is 3-10cm, and the edge of the netting (3) is fixedly connected to the tethering rope by stainless steel buckles.

8. The offshore TLP wind turbine-cage integrated aquaculture system according to claim 1, characterized in that: The mesh (3) and the tying rope are made of corrosion-resistant, tensile-resistant, durable ultra-high molecular weight polyethylene.

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