A wave current domestication device for an offshore mariculture platform

Abstract

The present application relates to the technical field of offshore mariculture platform, and discloses a wave and current domestication device for offshore mariculture platform, which comprises a first-stage wave and current domestication assembly, the first-stage wave and current domestication assembly comprises upper and lower arranged upper wave and current domestication device and lower wave and current domestication device, the upper wave and current domestication device comprises pipe type floating body group composed of mutually parallel pipe type floating bodies and upper fixing frame for fixing all pipe type floating bodies, the lower wave and current domestication device comprises lower fixing frame, oil and gas engineering recovery polyolefin pipe and glass steel pipe, further comprises wave and current domestication net, the wave and current domestication net is fixed on the opposite sides of the upper fixing frame and the lower fixing frame, the bottom of the wave and current domestication net is fixed with chain link type component, further comprises anchoring structure, the anchoring structure comprises pull chain and counterweight, the pull chain is fixed on the wave and current domestication net and is arranged along the length direction of the wave and current domestication net, the wave and current domestication device is used as wave and current domestication component, wave and current domestication is carried out to block wave and reduce current and improve the safety of offshore mariculture platform.

Description

Technical Field

[0001] This invention relates to the field of offshore aquaculture platform technology, specifically a wave and current acclimatization device for offshore aquaculture platforms. Background Technology

[0002] With the increasing scarcity of near-shore fishery resources, the development of marine aquaculture towards offshore and deep-sea areas has become an inevitable trend. In the field of offshore aquaculture platform technology, aquaculture farmers usually refer to offshore marine aquaculture platforms simply as offshore aquaculture platforms. Offshore aquaculture platforms include large offshore bottom-mounted cages, etc. As the core equipment of intensive aquaculture, offshore aquaculture platforms integrate multiple functions such as aquaculture production, ranch management, recreational fisheries, comprehensive supply, and even smart fisheries, and are a key infrastructure for developing the blue ocean. However, unlike the sheltered near-shore waters, offshore waters are directly exposed to open waters and are subjected to multiple and intense dynamic loads from strong waves, rapids, and periodic reciprocating currents generated by wind, waves, tides, and ocean currents. This complex and harsh hydrodynamic environment poses a severe challenge to the structural safety, aquaculture efficiency, and safety of farmed fish in offshore aquaculture platforms.

[0003] Currently, the operation of offshore aquaculture platforms faces several long-standing and unresolved technical challenges: First, the platform's main structure and netting system face significant risks. The continuous impact of strong waves and rapid currents not only threatens the stability of the main structure of the offshore aquaculture platform (especially bottom-mounted platforms), exacerbating foundation erosion and leading to risks such as platform displacement, structural damage, or overturning, but also directly affects the aquaculture netting system. Under the influence of strong currents, the netting can drift and deform severely, drastically reducing the effective aquaculture volume. It is also prone to snagging and friction with the platform structure or frame, accelerating netting wear and even causing breakage, resulting in serious incidents of fish escaping. This has caused enormous direct economic losses and ecological hazards. Second, the welfare and economic benefits of farmed fish are severely damaged. The high-speed, turbulent currents force farmed fish into a state of stress due to prolonged movement against the current, significantly increasing the energy consumed to maintain their position, thus slowing growth and reducing feed conversion rates. Meanwhile, prolonged stress can also lead to decreased fish immunity, increased risk of disease, and ultimately affect the quality of farmed fish and the overall economic benefits of aquaculture. Furthermore, existing protective or wave-current acclimatization methods have many limitations. Currently, common solutions include simply reinforcing the platform's own structure, constructing traditional offshore breakwaters, or deploying obstacles such as abandoned vessels. These methods often suffer from drawbacks such as huge engineering investments, long construction periods, significant impacts on the marine ecological environment, unstable protective effectiveness, or poor adaptability. In particular, these facilities are single-function, providing only protection and generating no economic benefits themselves, resulting in poor overall project economics. In addition, some protective nets that have been attempted to be tested are prone to instability, deformation, and damage under strong wave and current impacts due to unreasonable structural design, insufficient material performance, or unreliable anchoring systems, making it difficult to work effectively and long-term in high-energy offshore environments. Finally, there are shortcomings in resource recycling and material durability. On the one hand, the large quantities of waste netting, cables, and other polymer materials generated annually by the marine aquaculture industry are difficult to dispose of in an environmentally friendly and high-value manner. On the other hand, traditional steel used in marine engineering is prone to corrosion, and reinforcing steel in concrete components is also at risk of rust, affecting the long-term durability and reliability of anchoring systems and key components. Meanwhile, the recycling and reuse channels for large polymer components such as polyolefin pipelines recovered from the oil and gas industry and other fields are limited, and improper disposal has already caused enormous environmental pressure. Those skilled in the art are at a loss regarding these technical challenges, and existing technologies cannot solve them.

[0004] Therefore, there is an urgent need in this field for a wave and current acclimatization device specifically designed for offshore aquaculture platforms. This device must not only possess excellent wave dissipation and current-slowing performance, effectively reducing waves and currents around the platform and improving the aquaculture water environment, but also feature a reasonable structure, strong environmental adaptability, safety, durability, and economic feasibility. Ideally, the device should be able to achieve multi-functional synergy, such as incorporating ecological aquaculture functions to generate additional economic benefits, and promoting the resource utilization of waste materials (such as discarded aquaculture netting and recycled polyolefin pipes), aligning with the modern marine engineering concept of green development. However, no mature technical solution that simultaneously meets the above comprehensive requirements has been reported. This technological bottleneck has become one of the key obstacles restricting the offshore aquaculture platform industry from moving towards offshore and deep-sea operations and achieving safe, efficient, and large-scale development. Currently, there is an urgent need for a wave and current acclimatization device for offshore aquaculture platforms. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a wave and current acclimatization device for offshore marine aquaculture platforms to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides a wave and current acclimatization device for offshore aquaculture platforms, characterized in that it includes a primary wave and current acclimatization component, comprising an upper wave and current acclimatization device and a lower wave and current acclimatization device arranged vertically; the upper wave and current acclimatization device includes a tubular float assembly composed of parallel tubular floats and an upper fixing frame for fixing all tubular floats, the upper fixing frame being arranged along the length of the tubular floats, and having perforations for the tubular floats to pass through; the tubular floats are preferably made of polyolefin material with a diameter of 0.8m to 1.2m to improve the wave and current acclimatization effect and wind and wave resistance of the upper wave and current acclimatization device; the upper fixing frame can be injection molded from plastics such as HDPE resin or cast from corrosion-resistant metal materials.

[0007] The upper wave-taming device has tubular floats on which algae and shellfish farming facilities or wave-resistant grid facilities (such as kelp farming facilities or rope-type oyster farming facilities) are suspended; the wave-resistant grid facilities are made of basalt fiber geogrid [such as a wave-resistant grid facility with a single hole size of 100mm (length) × 50mm (width)]; the upper wave-taming device has tubular floats on which solar-powered warning lights are installed to warn passing ships;

[0008] The lower wave acclimatization device includes a lower fixing frame, an oil and gas engineering recovery polyolefin pipe, and a fiberglass pipe. At least three lower fixing frames are arranged along the length of the oil and gas engineering recovery polyolefin pipe and the fiberglass pipe. The lower fixing frame has through holes that pass through the oil and gas engineering recovery polyolefin pipe and the fiberglass pipe. The lower fixing frame can be made of plastic injection molding such as HDPE resin or cast from corrosion-resistant metal materials.

[0009] The lower wave acclimation device is equipped with a ballast weight, which is made of basalt fiber composite reinforcement and concrete, and its weight ranges from 0.35kN to 50kN; the diameter of the basalt fiber composite reinforcement ranges from 1.0mm to 4.7mm.

[0010] It also includes a wave-taming net, which is fixed to the opposite sides of the upper and lower fixed frames. A chain-link component (such as a mooring chain) is fixed to the bottom of the wave-taming net. The wave-taming net is made of flexible large-mesh net, and the mesh size of the wave-taming net is 9.5%-20.6% of the wavelength of the waves at the location of the device. The wave-taming net is made of high-strength flexible soft film or medium-high strength ultra-high molecular weight polyethylene (HMPE) fiber new material with a breaking strength range of 15g / D-26g / D.

[0011] It also includes an anchoring structure, which includes a connecting pull chain and a counterweight. The pull chain is connected to the upper and lower fixed frames by an ultra-high strength rope with a breaking strength of not less than 90t (such as an ultra-high molecular weight polyethylene fiber rope with a nominal diameter of 38mm and a breaking strength of 104t), so as to achieve efficient connection between the upper and lower wave acclimatization devices and to acclimatize the wave. The pull chain is fixed to the wave acclimatization net and is arranged along the length of the wave acclimatization net. The pull chain is configured with a counterweight of 14.3kg / m-30.9kg / m.

[0012] More preferably, there are two primary wave and current training components, which are arranged on both sides of the offshore aquaculture platform in the direction of reciprocating current or strong current.

[0013] More preferably, the tubular float assembly comprises a main tube float assembly consisting of at least three laterally arranged tubular floats;

[0014] The tubular float assembly further includes a first upper tubular float assembly and a second upper tubular float assembly arranged from the side upward adjacent to the main tubular float assembly. The number of the first upper tubular float assembly is not less than one and is less than the number of the main tubular float assemblies.

[0015] The tubular float assembly also includes a lower tubular float assembly located below the main tubular float assembly, the number of which is less than the number of the main tubular float assemblies.

[0016] More preferably, the lower wave acclimatization device includes three oil and gas engineering recovery polyolefin pipes, and the central axes of the three oil and gas engineering recovery polyolefin pipes form an approximately inverted triangle.

[0017] The lower wave acclimatization device includes three oil and gas engineering recovery polyolefin pipes, and the central axes of the three oil and gas engineering recovery polyolefin pipes form an approximately inverted triangle.

[0018] The lower wave acclimatization device also includes two fiberglass pipes, which are located on both sides of the lower oil and gas recovery polyolefin pipe among the three oil and gas recovery polyolefin pipes, forming a straight line arrangement of the fiberglass pipes, the oil and gas recovery polyolefin pipes, and the fiberglass pipes; and the distance between the two fiberglass pipes is greater than the distance between the two upper oil and gas recovery polyolefin pipes among the three oil and gas recovery polyolefin pipes.

[0019] On the outside of the two fiberglass pipes, oil and gas engineering recovery polyolefin pipes and fiberglass pipes are also arranged sequentially from the inside to the outside, forming a reinforced arrangement of fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes arranged radially from the inside to the outside, or fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes, fiberglass pipes.

[0020] Further preferably, it also includes an outer wave and current acclimatization component consisting of two interconnected nets, wherein the outer wave and current acclimatization component and the wave and current acclimatization net form an approximately triangular wave-blocking and current-slowing zone, and the outer wave and current acclimatization component is located on the side of the wave and current acclimatization net away from the offshore marine aquaculture platform;

[0021] The top of the net is equipped with a buoy, float or lifting sail to provide buoyancy to the net and improve the wave-controlling and current-slowing effect of the wave-taming device.

[0022] The connection between the two mesh fabrics is connected to the limiting block by an outwardly extending tension member.

[0023] In a further preferred embodiment, the lengths of the two nets decrease from top to bottom, and the nets are produced by cutting, sewing, and assembling discarded marine aquaculture nets;

[0024] The connection point of the two meshes is an inclined side that is inclined from top to bottom toward the primary wave acclimatization component.

[0025] More preferably, the bottom of the mesh is connected to a chain-link counterweight.

[0026] More preferably, the top of the mesh is connected to the inner counterweight block via an inner pull chain link component, and anti-slip rods are arranged on the seabed contact surface of the inner counterweight block (the anti-slip rods can be made by means of anchor bolts, etc.); the inner counterweight block is flat in shape and has a weight range of 23kN-66kN;

[0027] The top of the mesh is connected to an external counterweight via an external pull chain link component, and anti-slip rods are arranged on the seabed contact surface of the external counterweight; the external counterweight is flat in shape and has a weight range of 41kN-83kN.

[0028] Both the inner and outer pull chain links are arranged along the length of the mesh fabric.

[0029] The inner pull chain section component and the outer pull chain section component are located on both sides of the mesh fabric.

[0030] More preferably, the tops of the two nets are connected by floating ropes, with the total number of floating ropes ranging from 3 to 8.

[0031] Each of the floating ropes is equipped with 10 to 30 wave-damping belts; the floating ropes are hollow braided ropes with built-in buoys, and the buoyancy of each floating rope ranges from 13kN to 42kN.

[0032] More preferably, the wave-damping strip is seaweed growing on the floating rope or a cylindrical hollow woven strip tied to the floating rope; the length of the cylindrical hollow woven strip ranges from 1.2m to 13m.

[0033] The cylindrical hollow woven tape contains pebbles weighing between 0.23kN and 0.67kN (the pebbles have smooth surfaces).

[0034] Compared with existing technologies, the beneficial effects of this invention lie in its integration of three major advantages: structural innovation, functional fusion innovation, and resource recycling innovation in wave and current acclimatization devices. By using a wave and current acclimatization device as a component for wave and current acclimatization, it achieves significant progress in the field of offshore aquaculture platforms, specifically in the following ways:

[0035] (1) Synergistic breakthrough in wave and current taming efficiency and stability. This invention constructs a three-dimensional, multi-level taming system consisting of an upper tubular floating body assembly, a middle flexible large-mesh net, and a lower composite pipe structure, achieving efficient dissipation of waves and currents throughout the entire process and at all water depths, thus ensuring the suitability of the marine aquaculture platform. The upper device utilizes the tubular floating body assembly to disrupt surface waves; regarding the mesh size of the wave and current taming net in the middle of the device, based on numerous arduous experiments and the principles of hydrodynamics, the inventors designed a correlation between the mesh size and the wavelength of the sea area where the marine aquaculture platform is located [the above design is neither a conventional design nor a conventional choice for those skilled in the art, but an optimized choice based on the principles of hydrodynamics, which is the key to achieving efficient wave dissipation; the core parameter of the wave and current taming net mesh size solves the problem of "how to achieve efficient wave dissipation without completely blocking the water flow". The present invention addresses the contradictory problem of "energy dissipation" by providing a specific range of mesh sizes for the wave-current conditioning net, resulting in unexpected technical effects (such as a reflection coefficient of 0.3-0.5 and a flow velocity attenuation of 21%-47%). Optimized to 9.5%-20.6% of the common wavelengths in the sea area where the marine aquaculture platform is located, it effectively disrupts the continuous structure and energy transfer of waves. The lower device utilizes the specific arrangement of oil and gas engineering recovery polyolefin pipes and fiberglass pipes (such as an approximate inverted triangle and its extended forms), along with their different response characteristics to water flow, to jointly form a stable bottom disturbance barrier. It should be noted that the "three oil and gas engineering recovery polyolefin pipes forming an approximately inverted triangle" and the enhanced arrangement (such as "fiberglass pipe + oil and gas engineering recovery polyolefin pipe + fiberglass pipe + oil and gas engineering recovery polyolefin pipe" or "fiberglass pipe + oil and gas engineering recovery polyolefin pipe + fiberglass pipe + oil and gas engineering recovery polyolefin pipe + fiberglass pipe") in the lower wave taming device of this invention are designed to form a stable bottom turbulence barrier. The specific arrangement produces a better flow stabilization and structural stability effect than a simple parallel arrangement.

[0036] When aquaculture platforms require excellent wave and current acclimatization, the oil and gas recovery polyolefin pipes and fiberglass pipes in the lower wave and current acclimatization device adopt the enhanced arrangement method described in this invention; when good wave and current acclimatization is required, the single-line ordinary arrangement method described in this invention is used. The technical solution of this invention closely adheres to the concepts of "synergistic effect" and "synergistic action." This invention always starts from the overall system, with each part cooperating with the others to jointly solve technical problems that cannot be solved by a single component. The tubular float assembly in the upper wave and current acclimatization device, the acclimatization net with a specific mesh in the middle, and the specifically arranged pipes in the lower wave and current acclimatization device cooperate and work together to produce a wave and current acclimatization effect of "1+1+1 > 3" (the upper float assembly breaks up large waves, the middle mesh disrupts wave continuity, and the lower pipes stabilize the bottom flow; all three are indispensable). Regarding the two core parameters, mesh size and tie-chain counterweight, it can be emphasized that they were optimized through "countless arduous experiments" and "hydrodynamic principles," resolving the contradictory problem of "how to achieve efficient energy dissipation without completely blocking water flow." This specific range brings unexpected technical effects (such as a reflection coefficient of 0.3-0.5 and a flow velocity reduction of 21%-47%). The composite structure of this invention overcomes the shortcomings of traditional single facilities (such as breakwaters or simple net curtains), such as poor adaptability, low efficiency, or high investment, producing unexpected technical effects. Therefore, the inventiveness of this invention is very obvious.

[0037] (2) Innovative design of anchoring and stabilization system to ensure safety under extreme working conditions. This invention designs a multi-dimensional stabilization system for offshore high-energy environments. First, the anchoring structure uses ultra-high strength ropes with a breaking strength of not less than 90t to bind the pull chain to the fixing frame, providing strong main connection safety guarantee. Second, the pull chain itself is counterweighted within a scientific range of 14.3kg / m-30.9kg / m. This design allows it to maintain a moderate tension under the action of waves and currents, avoiding drift caused by excessive slack, and absorbing some of the wave and current energy through its own inertial damping, greatly improving the overall dynamic stability of the wave and current acclimatization net. It is worth noting that, based on numerous arduous experiments, this invention features a scientifically designed "pull chain counterweight." The pull chain in this invention is configured with a counterweight of 14.3 kg / m to 30.9 kg / m to maintain a "moderate tension" under wave currents, while simultaneously absorbing energy through its own inertial damping. This is an innovative point in dynamic stability design, neither a simple "weighting" nor a conventional choice for those skilled in the art. Furthermore, the lower ballast is made of corrosion-resistant basalt fiber-reinforced concrete, and the anti-slip rods on the seabed contact surface of the counterweight blocks in the outer components together constitute a "grip" system that resists bottom current erosion and prevents overall slippage. This ensures the device's ability to maintain its position under long-term complex loads, making the invention's inventiveness particularly significant.

[0038] (3) Multifunctional integration and significant improvement in economic benefits. This invention breaks the shackles of traditional marine platform protection facilities that are "only input and no output", transforming passive protection into active production; algae and shellfish farming facilities can be flexibly suspended on the tubular float of the upper wave and current acclimatization device, turning the protection structure itself into a huge offshore algae and shellfish farming farm (such as offshore kelp farm, offshore mussel farm, offshore oyster farm), directly generating economic and ecological benefits, and significantly improving the comprehensive economic and ecological benefits of offshore marine aquaculture projects; at the same time, the solar warning lights installed on the device enhance navigation safety, the safety of the marine aquaculture platform and the wave and current acclimatization device, reflecting the humanized design and technological advancement of this invention.

[0039] (4) High-value realization of green, low-carbon and resource recycling. This invention deeply integrates the concept of environmental protection and innovatively transforms two typical (marine) industrial solid wastes, namely "recycled polyolefin pipes for oil and gas engineering" and "waste marine aquaculture netting," into core functional materials of the device. This not only provides a high-value and resource-based solution for these difficult-to-dispose-of wastes and significantly reduces the material cost of the device, but also reduces the carbon footprint and environmental impact of traditional material (such as steel) production from a life-cycle perspective, providing a reference for the green design of marine engineering equipment. The use of "recycled polyolefin pipes" and "waste netting" in the device of this invention is not only for cost and environmental protection considerations, but also because they are "selected" to achieve specific functions due to their specific physical properties (such as buoyancy, good toughness and wind and wave resistance of recycled polyolefin pipes, and good water filtration properties of waste netting). They are indispensable and designed components of the entire wave and current acclimatization device system, rather than simple "waste utilization." In summary, this invention, through a series of innovative structural, material, and system designs, effectively addresses the multiple challenges faced by offshore aquaculture platforms, including safety, economy, suitability for aquaculture, and environmental friendliness. It possesses outstanding substantive features and significant progress, making it suitable for widespread application.

[0040] The device of this invention has been practically applied and verified in the Yellow and Bohai Seas. The results show that the wave-current acclimatization device developed in this invention allows water flow to pass through. When water flow or water waves (such as waves and tidal currents) pass through the device, energy is consumed, and the proportion and reflection coefficient of the reflected wave energy (or wave height) are low (0.3~0.5). This indicates that the device of this invention has a good wave-damping effect. Furthermore, test results show that after deploying the wave-current acclimatization device according to this invention on both sides of the reciprocating or strong current direction of the offshore aquaculture platform, the flow velocity at the deployment point can reach 21%~47%, indicating that the device of this invention has a very good flow reduction effect. In summary, the technical solution of this invention has produced unexpected technical effects. The wave-current acclimatization effect or wave-damping and flow-reduction effect of the device of this invention is very significant. Its inventiveness, novelty, and practicality are all very obvious. This invention can provide stable aquaculture conditions for offshore aquaculture platforms, and the industrialization prospects of this invention are very broad. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present invention;

[0042] Figure 2 This is a schematic diagram of a specific embodiment 2 of the present invention;

[0043] Figure 3 This is a partial structural schematic diagram of a specific embodiment 2 of the present invention;

[0044] Figure 4 This is a partial structural schematic diagram of a specific embodiment 2 of the present invention.

[0045] In the diagram, 1 is the upper wave and current acclimatization device, 2 is the lower wave and current acclimatization device, 11 is the upper fixed frame, 21 is the lower fixed frame, 3 is the wave and current acclimatization net, 4 is the counterweight block, 5 is the netting, 6 is the inner counterweight block, 7 is the outer counterweight block, 8 is the limiting block, 9 is the offshore aquaculture platform, 51 is the floating rope, 52 is the chain-link counterweight, and 53 is the buoy. Detailed Implementation

[0046] The present invention will now be further described with reference to the accompanying drawings.

[0047] See Figure 1Specific Embodiment 1: A wave and current acclimatization device for an offshore aquaculture platform, comprising a primary wave and current acclimatization component. The primary wave and current acclimatization component includes an upper wave and current acclimatization device 1 and a lower wave and current acclimatization device 2 arranged vertically. The upper wave and current acclimatization device 1 includes a group of tubular floats composed of parallel tubular floats and an upper fixing frame 11 for fixing all the tubular floats. The upper fixing frame 11 is arranged along the length direction of the tubular floats, and the upper fixing frame 11 has perforations for the tubular floats to pass through (the aforementioned tubular floats are preferably made of...). The upper wave-current acclimatization device 1 is equipped with a floating pipe made of polyolefin material with a diameter of 0.8m to 1.2m to enhance its wave-current acclimatization effect and wind and wave resistance. The upper fixed frame can be made of plastic injection molding such as HDPE resin or cast from corrosion-resistant metal materials. Algae and shellfish aquaculture facilities or wave-resistant grid facilities (such as kelp aquaculture facilities) are suspended on the tubular floating body of the upper wave-current acclimatization device 1. The wave-resistant grid facilities are made of basalt fiber geogrid [such as a wave-resistant grid facility with a single hole size of 100mm (length) × 50mm (width)]. Solar warning lights (such as SZSW2730 solar warning lights, which have high brightness and a visibility distance of over 500m) are installed on the tubular floating body of the upper wave-current acclimatization device to warn passing ships and effectively prevent passing ships from damaging the wave-current acclimatization device or marine aquaculture platform.

[0048] The lower wave acclimatization device 2 includes a lower fixing frame 21, an oil and gas engineering recovery polyolefin pipe, and a fiberglass pipe. At least three lower fixing frames 21 are arranged along the length of the oil and gas engineering recovery polyolefin pipe and the fiberglass pipe. The lower fixing frames 21 have perforations through which the oil and gas engineering recovery polyolefin pipe or the fiberglass pipe passes. A ballast (such as...) is suspended on the lower wave acclimatization device 2. Figure 1As shown, the ballast is made of basalt fiber composite reinforcement and concrete (the weight range of the ballast is 0.35kN-50kN; the diameter range of the basalt fiber composite reinforcement is 1.0mm-4.7mm); it also includes a wave-current acclimatization net 3, which is fixed on the opposite sides of the upper fixing frame 11 and the lower fixing frame 21, and the bottom of the wave-current acclimatization net 3 is fixed with a chain link component; the wave-current acclimatization net uses a flexible large-mesh net, and the mesh size of the wave-current acclimatization net is 16% of the wavelength (if the wavelength of the sea area of ​​the marine aquaculture platform is 20m, then the mesh size of the wave-current acclimatization net is 3.2m); the wave-current acclimatization net material is a high-strength flexible soft membrane or a medium-high strength HMPE fiber with a breaking strength of 18.7g / D. Material processing and manufacturing; also includes an anchoring structure, which includes a connected pull chain and a counterweight 4. The pull chain is connected to the upper fixed frame 11 and the lower fixed frame 21. The pull chain is tied to the upper fixed frame 11 and the lower fixed frame 21 by an HMPE cable with a breaking strength of 90t (such as an ultra-high molecular weight polyethylene fiber rope with a nominal diameter of 38mm and a breaking strength of 104t) to achieve efficient connection between the upper and lower wave acclimatization devices and to synergistically acclimatize the wave current. The pull chain is fixed on the wave acclimatization net 3 and arranged along the length of the wave acclimatization net 3. The pull chain is configured with a counterweight of 27.5kg / m to improve the stability of the wave acclimatization net and the wave acclimatization effect under the action of the wave current.

[0049] There are two primary wave and current training components. The two primary wave and current training components are arranged on both sides of the offshore marine aquaculture platform in the direction of the reciprocating current or the direction of the strong current (for example, if the strong current direction of the sea area where the offshore marine aquaculture platform is located is southeast, then the two primary wave and current training components are arranged on both sides of the offshore marine aquaculture platform in the southeast direction).

[0050] The tubular float assembly includes a main tube float assembly consisting of at least three laterally arranged tubular floats; the tubular float assembly also includes a first upper tubular float assembly and a second upper tubular float assembly arranged laterally from the adjacent main tube float assembly, the number of the first upper tubular float assembly being not less than one and less than the number of main tube floats; the tubular float assembly also includes a lower tubular float assembly located below the main tube floats, the number of the lower tubular float assemblies being less than the number of main tube floats.

[0051] The lower wave-current acclimatization device 2 includes three oil and gas engineering recovery polyolefin pipes, the central axes of which form an approximately inverted triangle; the lower wave-current acclimatization device 2 also includes two fiberglass pipes, located on either side of the lower oil and gas engineering recovery polyolefin pipe, forming a straight line arrangement of the fiberglass pipes, the oil and gas engineering recovery polyolefin pipes, and the fiberglass pipes; and the two fiberglass pipes... The spacing between them is greater than the spacing between the two uppermost oil and gas recovery polyolefin pipes among the three oil and gas recovery polyolefin pipes; on the outside of the two fiberglass pipes, oil and gas recovery polyolefin pipes and fiberglass pipes are also arranged sequentially from the inside to the outside, forming a reinforced arrangement of fiberglass pipes, oil and gas recovery polyolefin pipes, fiberglass pipes, oil and gas recovery polyolefin pipes arranged radially from the inside to the outside, or, fiberglass pipes, oil and gas recovery polyolefin pipes, fiberglass pipes, oil and gas recovery polyolefin pipes, fiberglass pipes, oil and gas recovery polyolefin pipes, fiberglass pipes, oil and gas recovery polyolefin pipes, fiberglass pipes.

[0052] See Figures 2 to 4 In specific embodiment 2, based on specific embodiment 1, it further includes an outer wave and current acclimatization component consisting of two interconnected nets 5. The outer wave and current acclimatization component and the wave and current acclimatization net 3 form an approximately triangular wave-blocking and current-slowing zone. The outer wave and current acclimatization component is located on the side of the wave and current acclimatization net away from the offshore marine aquaculture platform 9. A buoy 53, a float, or a lifting sail is installed on the top of the net 5, which provides buoyancy to the net and enhances the wave-blocking and current-slowing effect of the wave and current acclimatization device (when the sea area where the marine aquaculture platform is located has very severe wind and waves, a lifting sail is preferred on the top of the net; under other sea conditions, the top of the net can be selected according to the convenience of purchasing buoys, floats, or lifting sails). The connection between the two nets 5 is connected to a limiting block 8 by an outwardly extending traction member. The lengths of the two nets 5 decrease from top to bottom, and the nets are made from waste marine aquaculture nets (such as waste nets that have been replaced after many years of use on offshore marine aquaculture platforms, so as to realize the recycling of waste net resources); the connection between the two nets 5 is an inclined side that is inclined from top to bottom toward the first-level wave and current acclimatization component.

[0053] The top of the mesh fabric 5 is connected to the inner counterweight 6 via an inner pull chain link component, and 3-8 anti-slip rods (each anti-slip rod can be an anchor bolt with a breaking strength of not less than 20t) are arranged on the seabed contact surface of the inner counterweight block; the inner counterweight block is flat in shape and weighs 47kN (the flat shape of the inner counterweight block improves its anti-slip performance); the top of the mesh fabric 5 is connected to the outer counterweight 7 via an outer pull chain link component, the outer counterweight block is flat in shape and weighs 69kN (the flat shape of the outer counterweight block improves its anti-slip performance); both the inner and outer pull chain link components are arranged along the length of the mesh fabric 5; the inner and outer pull chain link components are located on both sides of the mesh fabric 5.

[0054] The bottom of the mesh 5 is connected to a chain-link counterweight 52.

[0055] The tops of the two nets 5 are connected by four floating ropes 51. Each floating rope 51 is equipped with a wave-damping belt. The floating ropes are hollow braided ropes with a nominal diameter of 160mm, each containing a 120mm diameter spherical float. Each floating rope has a buoyancy of 16kN. The wave-damping belts are kelp grown on the floating ropes or cylindrical hollow braided belts with a diameter of 130mm. Each wave-damping belt is 1.3m long and consists of 18 sections. Each cylindrical hollow braided belt contains pebbles weighing 0.27kN. When the sea area where the aquaculture platform is located has very rough seas or the farmed fish have poor swimming ability, the total number of floating ropes is greater than six, and each floating rope is equipped with more than 20 wave-damping belts. In other sea conditions, the number of floating ropes and wave-damping belts can be adjusted according to the swimming ability of the farmed fish.

[0056] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A wave and current acclimatization device for offshore aquaculture platforms, characterized in that, The device includes a primary wave and current acclimatization assembly, which comprises an upper wave and current acclimatization device and a lower wave and current acclimatization device arranged vertically. The upper wave and current acclimatization device comprises a tubular float assembly consisting of parallel tubular floats and an upper fixing frame for fixing all the tubular floats. The upper fixing frame is arranged along the length of the tubular floats and has tubular float perforations for passing through the tubular floats. The upper wave-current acclimatization device has tubular floats on which algae and shellfish farming facilities or wave-current resistant grid facilities are suspended; the wave-current resistant grid facilities are made of basalt fiber geogrids; and solar warning lights for warning passing ships are installed on the tubular floats of the upper wave-current acclimatization device. The lower wave acclimatization device includes a lower fixing frame, an oil and gas engineering recovery polyolefin pipe and a fiberglass pipe. At least three lower fixing frames are arranged along the length of the oil and gas engineering recovery polyolefin pipe and the fiberglass pipe. The lower fixing frames are provided with perforations that pass through the oil and gas engineering recovery polyolefin pipe and the fiberglass pipe. The lower wave acclimation device is equipped with a ballast weight, which is made of basalt fiber composite reinforcement and concrete. It also includes a wave-training net, which is fixed to the opposite sides of the upper and lower fixed frames, and a chain-link component is fixed to the bottom of the wave-training net; the wave-training net is a flexible large-mesh net, and the mesh size of the wave-training net is 9.5%-20.6% of the wavelength of the waves at the location of the device; the wave-training net is made of a high-strength flexible soft film or a medium-high strength ultra-high molecular weight polyethylene fiber new material with a breaking strength range of 15g / D-26g / D; It also includes an anchoring structure, which includes a connecting pull chain and a counterweight. The pull chain is connected to the upper and lower fixing frames by an ultra-high strength rope with a breaking strength of not less than 90t. The pull chain is fixed to the wave acclimatization net and is arranged along the length of the wave acclimatization net. The pull chain is configured with a counterweight of 14.3kg / m-30.9kg / m.

2. The wave and current acclimatization device for offshore aquaculture platforms according to claim 1, characterized in that: There are two primary wave and current training components, which are arranged on both sides of the offshore marine aquaculture platform in the direction of reciprocating current or strong current.

3. The wave and current acclimatization device for offshore aquaculture platforms according to claim 1, characterized in that: The tubular float assembly comprises a main tube float assembly consisting of at least three laterally arranged tubular floats. The tubular float assembly further includes a first upper tubular float assembly and a second upper tubular float assembly arranged from the side upward adjacent to the main tubular float assembly. The number of the first upper tubular float assembly is not less than one and is less than the number of the main tubular float assemblies. The tubular float assembly also includes a lower tubular float assembly located below the main tubular float assembly, the number of which is less than the number of the main tubular float assemblies.

4. The wave and current acclimatization device for offshore aquaculture platforms according to claim 1, characterized in that: The lower wave acclimatization device includes three oil and gas engineering recovery polyolefin pipes, and the central axes of the three oil and gas engineering recovery polyolefin pipes form an approximately inverted triangle. The lower wave acclimatization device also includes two fiberglass pipes, which are located on both sides of the lower oil and gas recovery polyolefin pipe among the three oil and gas engineering recovery polyolefin pipes, forming a straight line arrangement of the fiberglass pipes, oil and gas engineering recovery polyolefin pipes, and the distance between the two fiberglass pipes is greater than the distance between the upper two oil and gas engineering recovery polyolefin pipes among the three oil and gas engineering recovery polyolefin pipes; On the outside of the two fiberglass pipes, oil and gas engineering recovery polyolefin pipes and fiberglass pipes are also arranged sequentially from the inside to the outside, forming a reinforced arrangement of fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes arranged radially from the inside to the outside, or fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes, fiberglass pipes, and oil and gas engineering recovery polyolefin pipes, fiberglass pipes.

5. A wave and current acclimatization device for offshore aquaculture platforms according to claim 1, characterized in that: It also includes an outer wave and current acclimatization component consisting of two interconnected nets. The outer wave and current acclimatization component and the wave and current acclimatization net form an approximately triangular wave-blocking and current-slowing zone. The outer wave and current acclimatization component is located on the side of the wave and current acclimatization net away from the offshore marine aquaculture platform. The top of the netting is equipped with floats, pontoons, or lifting sails to provide buoyancy to the netting; The connection between the two mesh fabrics is connected to the limiting block by an outwardly extending tension member.

6. A wave and current acclimatization device for offshore aquaculture platforms according to claim 5, characterized in that: The lengths of the two nets decrease from top to bottom, and the nets are produced by cutting, sewing, and assembling discarded marine aquaculture nets; The connection point of the two meshes is an inclined side that is inclined from top to bottom toward the primary wave acclimatization component.

7. A wave and current acclimatization device for offshore aquaculture platforms according to claim 5, characterized in that: The bottom of the mesh is connected to a chain-link counterweight.

8. A wave and current acclimatization device for offshore aquaculture platforms according to claim 5, characterized in that: The top of the mesh is connected to the inner counterweight via an internal pull chain link component, and anti-slip rods are arranged on the seabed contact surface of the inner counterweight; the inner counterweight is flat in shape and has a weight range of 23kN-66kN. The top of the mesh is connected to an external counterweight via an external pull chain link component, and anti-slip rods are arranged on the seabed contact surface of the external counterweight; the external counterweight is flat in shape and has a weight range of 41kN-83kN. Both the inner and outer pull chain links are arranged along the length of the mesh fabric. The inner pull chain section component and the outer pull chain section component are located on both sides of the mesh fabric.

9. A wave and current acclimatization device for offshore aquaculture platforms according to claim 5, characterized in that: The tops of the two nets are connected by floating ropes, with the total number of floating ropes ranging from 3 to 8. Each floating rope is equipped with 10 to 30 wave-damping belts; the floating rope is made of hollow braided rope with a built-in buoy, and the buoyancy of each floating rope ranges from 13kN to 42kN.

10. A wave and current acclimatization device for an offshore aquaculture platform according to claim 9, characterized in that: The wave-damping strip is seaweed growing on the floating rope or a cylindrical hollow woven strip tied to the floating rope; the length of the cylindrical hollow woven strip ranges from 1.2m to 13m. The cylindrical hollow woven tape contains pebbles weighing between 0.23kN and 0.67kN.

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