External wave-damping power generation system of offshore floating units

By setting up a wave-damping power generation system around the floating unit at sea, the energy-absorbing panels rotate to generate electricity under the impact of waves and quickly rise to the surface, solving the problem of wave impact on the island and achieving efficient energy utilization and structural protection.

CN120042173BActive Publication Date: 2026-06-30NANTONG INST OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANTONG INST OF TECH
Filing Date
2025-03-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, the impact of ocean waves on floating islands leads to a shortened structural lifespan and makes it impossible to effectively utilize ocean wave energy for power generation.

Method used

Design an external wave-damping and power generation system for a floating marine unit. Utilize a transverse wave-damping support and a power-generating wave-damping device. The energy-absorbing plate rotates and swings under the impact of waves, driving the generator rotor to generate electricity. The system achieves rapid buoyancy and heat dissipation through a buoyancy tank and heat exchanger system.

Benefits of technology

It effectively reduces the impact of ocean waves on floating islands, extends the structural lifespan, and converts ocean wave energy into electrical energy, thereby improving the habitability of islands and energy utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120042173B_ABST
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Abstract

This invention discloses a peripheral wave-damping and power generation system for a floating marine unit, comprising a floating marine unit; a transverse wave-damping support is fixedly installed on the periphery of the floating marine unit, and a plurality of power-generating wave-dampers are arranged in an array along the length direction on the outer side of the transverse wave-damping support. Each power-generating wave-damper includes an inclined energy-absorbing plate, the lower part of which is submerged below the water surface, and the energy-absorbing plate can rotate and swing around a pivot. In a stable state, the energy-absorbing plate remains balanced under the combined action of gravity and buoyancy. When the wave-facing surface of the energy-absorbing plate is impacted by waves, the pivot corresponding to the energy-absorbing plate adaptively swings downward; the system has the function of power generation while damming waves and absorbing energy.
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Description

Technical Field

[0001] This invention belongs to the field of wave buffering and wave reduction. Background Technology

[0002] The installation of wave-damping devices around artificial floating islands can effectively reduce the impact of waves on the island's main body, thus mitigating the impact and extending the service life of the main structure. It also helps to prevent the floating island from shifting due to wave impacts. Furthermore, wave-damping devices can enhance the island's habitability, attracting more residents and tourists.

[0003] The applicant also noted that ocean waves and surges contain wave impact kinetic energy. If the energy in the ocean waves can be used to generate electricity when the wave absorption is achieved, it can effectively achieve the function of energy conservation and emission reduction. Therefore, this solution was designed. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an external wave-damping and power generation system for a floating marine unit, which can generate electricity while absorbing energy through wave-damping.

[0005] Technical Solution: To achieve the above objectives, the present invention provides a peripheral wave-damping and power generation system for a floating marine unit, comprising a floating marine unit; a transverse wave-damping support is fixedly installed on the periphery of the floating marine unit, and a plurality of power-generating wave-dampers are arrayed along the length direction on the outer side of the transverse wave-damping support. Each power-generating wave-damper includes an inclined energy-absorbing plate, the lower part of which is submerged below the water surface, and the energy-absorbing plate can rotate and swing around a pivot. The density of the energy-absorbing plate is less than that of seawater. In a stable state, the energy-absorbing plate remains balanced under the combined action of gravity and buoyancy. When the wave-facing surface of the energy-absorbing plate is impacted by waves, the pivot corresponding to the energy-absorbing plate adaptively swings downward.

[0006] Furthermore, the power generation damper includes a first connecting arm fixed to the lower side of the transverse damper bracket. A transverse fixed outer cylinder is fixedly connected to the lower side of the first connecting arm. A cantilever is fixed to one end of the upper part of the transverse fixed outer cylinder. A rotating shaft is rotatably installed on the lower side of the cantilever through a bearing seat and a bearing. The rotating shaft is fixedly connected to the upper end of the energy-absorbing plate through a swing arm.

[0007] Furthermore, the rotating shaft is coaxially arranged with the transversely fixed outer cylinder; one end of the rotating shaft is coaxially fixedly connected to a generator rotor, and a generator stator is coaxially arranged inside the generator rotor; one end of the generator stator is fixedly connected to the transversely fixed outer cylinder through a second connecting arm.

[0008] Furthermore, the generator stator is a permanent magnet stator; the generator rotor includes an air guide disc, a heat dissipation cylinder, and a rotor induction coil unit. The outer ring of the air guide disc is coaxially and integrally connected to one end of the heat dissipation cylinder. The rotor induction coil unit is coaxially heat-transferring and fitted to the inner wall of the heat dissipation cylinder, and is coaxially fitted to the generator stator.

[0009] Furthermore, the outer wall of the heat dissipation rotating cylinder is integrally arranged with several strip-shaped heat exchange fins extending along the axial direction in a circumferential array.

[0010] Furthermore, at least one buoyancy air box is fixedly installed on the lower surface of the part of the energy-absorbing plate that is submerged in water. The buoyancy air box contains a pressure chamber, and the wall of the buoyancy air box away from the energy-absorbing plate is an elastic diaphragm. The elastic diaphragm is kept in balance by the combined action of the air pressure in the pressure chamber inside the buoyancy air box and the external water pressure. Each strip-shaped heat exchanger has an outwardly bulging strip-shaped pressure-transmitting airbag on one side along its length. A first air guide pipe is provided on the energy-absorbing plate, and a second air guide pipe extends along the length of the swing arm. A main air channel is provided inside the rotating shaft along its length. Each strip-shaped heat exchanger has a heat exchange channel inside. One end of the main air channel is connected to the heat exchange channel inside each strip-shaped heat exchanger through several branch channels arranged in a circular array on the air guide disc. Each strip-shaped pressure-transmitting airbag is connected to the heat exchange channel inside each strip-shaped heat exchanger. The other end of the main air channel is connected to the upper end of the second air guide pipe, and the lower end of the second air guide pipe is connected to the pressure chamber inside each buoyancy air box through the first air guide pipe. Thus, the pressure chamber inside the buoyancy air box is connected to each strip-shaped pressure-transmitting airbag in sequence through the first air guide pipe, the second air guide pipe, the main air channel, several branch channels, and the heat exchange channel inside each strip-shaped heat exchanger. Under stable conditions, each strip-shaped pressure-transmitting airbag bulges outward under the action of internal pressure.

[0011] The inner wall of the horizontally fixed outer cylinder is arranged in a circumferential array with several collision strips parallel to the axis. In a stable state, any strip-shaped heat exchange plate is centered between two adjacent collision strips. The counterclockwise rotation of the heat dissipation cylinder can cause the strip-shaped pressure-transmitting airbag on one side of the strip-shaped heat exchange plate to collide with the corresponding collision strip. When each strip-shaped pressure-transmitting airbag collides with the corresponding collision strip, more than 90% of the energy-absorbing plate itself is immersed in water.

[0012] Furthermore, a flow control valve is installed in the main gas channel. When the gas in the main gas channel flows into several branch channels, the flow control valve suppresses the flow rate in the main gas channel; when the gas in several branch channels flows into the main gas channel, the flow control valve does not suppress the flow rate in the main gas channel.

[0013] Furthermore, the flow control valve includes a valve tube extending along the axis, with a conical channel inside the valve tube. The narrow end of the conical channel faces the air guide disc. A spherical valve core is installed inside the conical channel, and several flow-limiting holes are evenly cut out on the spherical valve core. A radial spherical limiting bracket is fixedly connected to the inner wall of the wide end of the conical channel. When the spherical valve core is coaxially attached to the inner wall of the conical channel, a distance is formed between the spherical valve core and the radial spherical limiting bracket.

[0014] When the gas in the main gas channel flows into several branch channels, the lightweight spherical valve core is driven by the gas to coaxially fit the inner wall of the conical channel, so that the gas flowing through the valve tube must pass through each flow-limiting orifice, thereby achieving the purpose of flow restriction;

[0015] When gas from several branch channels flows into the main gas channel, the lightweight spherical valve core is driven by the gas to detach from the inner wall of the conical channel, thus allowing the flow control valve to flow smoothly.

[0016] Beneficial effects: The energy-absorbing plate of the present invention swings downward around the axis under the impact of the kinetic energy of the waves, thereby doing work and absorbing the impact kinetic energy from the waves through the downward swing process, and avoiding the edges of the floating unit at sea from being directly impacted by the waves.

[0017] During one impact cycle of any wave, the energy-absorbing plate swings up and down once. Each time the energy-absorbing plate swings up and down, it drives the generator rotor to rotate back and forth once, thereby generating an induced current in the rotor induction coil unit on the generator rotor, thus achieving the purpose of converting the kinetic energy of the wave impact into electrical energy.

[0018] By effectively reversing the downward swing of the energy-absorbing plate and temporarily increasing the buoyancy of the energy-absorbing plate after the downward swing, the energy-absorbing plate can quickly rise during the upward phase. This allows the front of the plate to rise and swing up before the second wave arrives, after being impacted by the first wave and swinging into the water, thus avoiding the problem of not being able to receive the second wave in time.

[0019] Each up-and-down swing of the energy-absorbing plate causes a rapid flow of slightly cool gas through the heat exchange channels in each strip heat exchange plate, effectively removing the heat from each strip heat exchange plate and thus achieving periodic, efficient, and active heat dissipation for the rotor induction coil unit. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall plan;

[0021] Figure 2 Another perspective view of a single-unit power generation damper;

[0022] Figure 3 This is a schematic diagram of the moving part of a single-unit generator-type wave damper.

[0023] Figure 4 This is a schematic diagram of the up-and-down swing state transition process of the energy-absorbing plate of a single-unit power generation wave damper. Detailed Implementation

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] As attached Figure 1 The wave-damping and power generation system of the floating marine unit shown in Figure 4, such as Figure 1 As shown, it includes floating marine units, such as artificial floating islands and artificial floating miniature cities; a transverse wave-damping support 1 is fixedly installed on the periphery of the floating marine unit, and several power-generating wave-damping devices 2 are arrayed along the length direction on the outer side of the transverse wave-damping support 1. The power-generating wave-damping devices 2 include oblique energy-absorbing plates 11. The energy-absorbing plates 11 are high-strength composite materials with a density lower than seawater, and are composed of a composite structure with polyurethane foam filling the inside and a high-strength outer shell, such as... Figure 4 As shown in the figure above, the lower part of the energy-absorbing plate 11 is submerged below the water surface 39, and the energy-absorbing plate 11 can rotate and swing around a pivot. In a stable state, the energy-absorbing plate 11 maintains balance under the combined action of gravity and buoyancy. When the wave-facing surface 11a of the energy-absorbing plate 11 is impacted by sea waves, the pivot corresponding to the energy-absorbing plate 11 swings downward adaptively.

[0026] The power generation wave damper 2 includes a first connecting arm 3 fixed to the lower side of the transverse wave damper bracket 1. A transverse fixed outer cylinder 7 is fixedly connected to the lower side of the first connecting arm 3. A cantilever 4 is fixed to one end of the upper part of the transverse fixed outer cylinder 7. A rotating shaft 10 is rotatably installed on the lower side of the cantilever 4 through a bearing seat 5 and a bearing. The rotating shaft 10 is fixedly connected to the upper end of the energy absorption plate 11 through a swing arm 6.

[0027] The rotating shaft 10 is coaxially arranged with the transverse fixed outer cylinder 7; one end of the rotating shaft 10 is coaxially fixedly connected to the generator rotor 74, and the generator stator 8 is coaxially arranged inside the generator rotor 74. One end of the generator stator 8 is fixedly connected to the transverse fixed outer cylinder 7 through two connecting arms 9.

[0028] The generator stator 8 is a permanent magnet stator; the generator rotor 74 includes an air guide plate 51, a heat dissipation cylinder 19 and a rotor induction coil unit 20. The outer ring of the air guide plate 51 is coaxially and integrally connected to one end of the heat dissipation cylinder 19. The rotor induction coil unit 20 is coaxially heat-transferring and cooperates with the inner wall of the heat dissipation cylinder 19, and is coaxially cooperated with the generator stator 8.

[0029] The outer wall of the heat dissipation rotating cylinder 19 is integrally arranged in a circumferential array with several strip-shaped heat exchange fins 18 extending along the axial direction.

[0030] like Figure 2As shown, at least one buoyancy air box 12 is fixedly installed on the lower surface of the portion of the energy-absorbing plate 11 submerged in water. The buoyancy air box 12 is a corrosion-resistant shell structure. Inside the buoyancy air box 12 is a pressure chamber. The wall of the buoyancy air box 12 away from the energy-absorbing plate 11 is an elastic diaphragm 12a. The elastic diaphragm 12a is kept in balance by the combined action of the air pressure in the pressure chamber inside the buoyancy air box 12 and the external water pressure. The elastic diaphragm 12a is a fiber-reinforced composite material of ultra-high molecular weight polyethylene (UHMWPE) with a fluororubber FKM coating. Layer: Ultra-high molecular weight polyethylene (UHMWPE) fiber braided layer. As the core reinforcing layer, it provides primary mechanical support, resisting seawater pressure and mechanical impact, preventing airbag rupture or deformation. Elastic layer: Fluororubber (FKM) coating. Fluororubber possesses excellent chemical corrosion resistance (acid, alkali, salt spray, seawater corrosion resistance, no swelling after long-term immersion), high temperature resistance (-20°C to +200°C), and an elastic elongation of up to 300%. Coated onto the fiber layer surface, it gives the airbag elastic deformation capability while blocking seawater penetration and preventing fiber corrosion.

[0031] like Figure 2 and 3 As shown, each strip-shaped heat exchange plate 18 has an outwardly bulging strip-shaped pressure-transmitting airbag 17 on one side along its length. The strip-shaped pressure-transmitting airbag 17 is a non-elastic, high-strength, non-breathable flexible fabric structure. Specifically, the strip-shaped pressure-transmitting airbag 17 is a high-strength aramid fiber fabric coated with TPU thermoplastic polyurethane. This composite material combines the advantages of multiple materials, providing excellent mechanical strength and durability while maintaining flexibility. Substrate layer: Aramid fiber fabric; Material characteristics: Aramid has extremely high tensile strength of approximately 3,000 MPa and puncture resistance, while having low density and a high-temperature decomposition temperature >500°C. As the structural skeleton of the airbag, it provides the main mechanical support, resisting internal air pressure and external impact, ensuring that the airbag is not easily torn or deformed. Coating / sealing layer: Thermoplastic polyurethane (TPU); Material characteristics: TPU has excellent abrasion resistance, adjustable flexural modulus from soft to semi-rigid, and gas barrier properties. Coated on the surface of the aramid fabric, it forms an airtight layer to prevent gas leakage, while enhancing the surface's resistance to abrasion and chemical corrosion.

[0032] The energy-absorbing plate 11 is provided with a first air guide pipe 14, the swing arm 6 is provided with a second air guide pipe 15 extending along the length direction, the rotating shaft 10 is provided with a main air channel 22 along the length direction, each strip heat exchange plate 18 is provided with a heat exchange channel inside, one end of the main air channel 22 is connected to the heat exchange channel inside each strip heat exchange plate 18 through several diversion channels 23 arranged in a circular array on the air guide turntable 51, and each strip pressure transmission airbag 17 is connected to the heat exchange channel inside each strip heat exchange plate 18 respectively. The other end of the main air passage 22 is connected to the upper end of the second air pipe 15. The lower end of the second air pipe 15 is connected to the pressure chambers in each buoyancy air box 12 through the first air pipe 14. Thus, the pressure chambers in the buoyancy air box 12 are connected to each strip-shaped pressure-transmitting air bag 17 in sequence through the first air pipe 14, the second air pipe 15, the main air passage 22, several diversion channels 23 and the heat exchange channels in each strip-shaped heat exchange plate 18. Under stable conditions, each strip-shaped pressure-transmitting air bag 17 expands outward under the action of internal pressure.

[0033] The inner wall of the horizontally fixed outer cylinder 7 is arranged in a circumferential array with several parallel collision strips 16 along the axis. In a stable state, any strip-shaped heat exchange fin 18 is centered between two adjacent collision strips 16. Figure 2 From the perspective shown, the counterclockwise rotation of the heat dissipation drum 19 causes the strip-shaped pressure-transmitting airbags 17 on one side of the strip-shaped heat exchange fins 18 to collide with their corresponding collision strips 16. When each strip-shaped pressure-transmitting airbag 17 is in the state of colliding with its corresponding collision strip 16, as... Figure 4 As shown in the image below, over 90% of the energy-absorbing plate 11 is submerged in water.

[0034] A flow control valve 21 is installed in the main gas channel 22. When the gas in the main gas channel 22 flows into the various branch channels 23, the flow control valve 21 suppresses the flow rate in the main gas channel 22. When the gas in the various branch channels 23 flows into the main gas channel 22, the flow control valve 21 does not suppress the flow rate in the main gas channel 22.

[0035] The flow control valve 21 includes a valve pipe 26 extending along the axis. A tapered channel 27 is provided inside the valve pipe 26. The narrow end of the tapered channel 27 faces the air guide disc 51. A spherical valve core 24 is provided inside the tapered channel 27. Several flow-limiting holes 25 are evenly hollowed out on the spherical valve core 24. A radial spherical limiting bracket 28 is fixedly connected to the inner wall of the thick end of the tapered channel 27. When the spherical valve core 24 is coaxially attached to the inner wall of the tapered channel 27, a distance is formed between the spherical valve core 24 and the radial spherical limiting bracket 28.

[0036] When the gas in the main gas channel 22 flows into the various branch channels 23, the lightweight spherical valve core 24 is driven by the gas to coaxially adhere to the inner wall of the conical channel 27, so that the gas flowing through the valve tube 26 must pass through the various flow-limiting holes 25, thereby achieving the purpose of flow restriction; when the gas in the various branch channels 23 flows into the main gas channel 22, the lightweight spherical valve core 24 is driven by the gas to detach from the inner wall of the conical channel 27, thereby making the flow control valve 21 unobstructed.

[0037] Working principle:

[0038] Under ideal calm conditions, the energy-absorbing plate 11 remains in balance under the combined action of gravity and buoyancy; at the same time, the elastic diaphragm 12a remains in balance under the combined action of the air pressure in the pressure chamber inside the buoyancy air box 12 and the external water pressure.

[0039] When the wave-facing surface 11a of the energy-absorbing plate 11 is impacted by waves, the energy-absorbing plate 11 swings downward around the axis 10 under the impact of the wave's kinetic energy. This downward swinging motion does work and absorbs the impact kinetic energy from the waves, preventing the edges of the floating unit from being directly impacted by the waves. During the downward swinging process, the energy-absorbing plate 11's displacement volume increases, causing the buoyancy force on the energy-absorbing plate 11 to gradually increase and exceed its weight. Therefore, when the energy-absorbing plate 11 swings downward to a certain extent, in this case, when the energy-absorbing plate 11... When the energy-absorbing plate 11 swings downwards until it is 90% submerged by seawater, it floats back up under the action of buoyancy and swings upwards to its initial position, waiting to meet the next wave. During one impact cycle of any wave, the energy-absorbing plate 11 swings up and down once. Each time the energy-absorbing plate 11 swings up and down, it drives the generator rotor 74 to rotate back and forth once, thereby generating an induced current in the rotor induction coil unit 20 on the generator rotor 74, thus realizing the purpose of converting the kinetic energy of the wave impact into electrical energy.

[0040] Since the main function of the energy-absorbing plate 11 in this case is to absorb the kinetic energy of the impact of ocean waves and prevent the edge of the floating unit at sea from being directly impacted by ocean waves; since ocean waves are periodic and the interval between two adjacent waves is sometimes very short, when the wave-facing surface 11a of the energy-absorbing plate 11 is impacted by the first wave and swings down into the water, if the energy-absorbing plate 11 has not had time to rise and swing up, and then the second wave comes again, the second wave will directly pass over the upper part of the energy-absorbing plate 11 that has swung down into the water and directly impact the edge of the floating unit at sea, so that the energy-absorbing plate 11 has not had time to intercept the second wave, thereby weakening the wave-absorbing plate 11's wave-damping and energy-absorbing function; even if the second wave cannot directly pass over the upper part of the energy-absorbing plate 11 that has swung down into the water, the second wave will also inhibit the upward swinging process of the energy-absorbing plate 11, so that the energy-absorbing plate 11 cannot swing up and down normally in a periodic manner, which not only seriously inhibits the power generation cycle, but also inhibits the swinging energy absorption process, causing the wave-damping bracket 1 to be subjected to rigid impact, thereby shortening its service life;

[0041] The solution proposed in this plan is to ensure that after the wave-facing surface 11a is impacted by the first wave and dips into the water, it rises and swings upwards as quickly as possible before the second wave arrives. The working principle of this solution, which allows the wave-facing surface 11a to quickly rise and swing upwards after being impacted by the first wave and dips into the water, is as follows:

[0042] As the wave-facing surface 11a of the energy-absorbing plate 11 is impacted by the first wave and swings downwards into the water, the heat dissipation rotating cylinder 19 rotates counterclockwise under the downward swing of the energy-absorbing plate 11. This causes the strip-shaped pressure-transmitting airbags 17 on one side of each strip-shaped heat exchange fin 18 to gradually move closer to their corresponding collision strips 16. When the energy-absorbing plate 11 swings to a predetermined depth, the strip-shaped pressure-transmitting airbags 17 on one side of each strip-shaped heat exchange fin 18 collide with their corresponding collision strips 16. The rebound force of the collision non-rigidly reverses the downward swing of the energy-absorbing plate 11 in a short time. At the same time, after the strip-shaped pressure-transmitting airbags 17 on one side of each strip-shaped heat exchange fin 18 collide with their corresponding collision strips 16, each strip-shaped pressure-transmitting airbag 17 is instantly subjected to a strong compressive force, causing the pressure inside each strip-shaped pressure-transmitting airbag 17 to increase in a pulsed manner, thereby causing each strip-shaped pressure-transmitting airbag 17 to... Under the action of pulsed pressure, the gas in the airbag 17 passes through the heat exchange channels in each strip heat exchange plate 18, each dry diversion channel 23, the main air channel 22, the second air guide pipe 15, and the first air guide pipe 14 and is rapidly pushed into the pressure chamber in the buoyancy air box 12. This causes the pressure in the pressure chamber in the buoyancy air box 12 to increase pulsedly, which in turn causes the elastic diaphragm 12a on the side of the buoyancy air box 12 away from the energy absorption plate 11 to bulge outward. This rapidly increases the drainage volume and buoyancy of the buoyancy air box 12, so that the energy absorption plate 11, which is swinging downward in reverse, can quickly float and swing upward under the action of increased buoyancy. This allows the wave-facing surface 11a to float and swing upward before the second wave arrives, after being impacted by the first wave and swinging downward into the water, thus avoiding the problem of not being able to receive the second wave in time.

[0043] During the rapid upward movement of the energy-absorbing plate 11 under the increased buoyancy, as each collision strip 16 separates from its corresponding strip-shaped pressure-transmitting airbag 17, the outwardly bulging elastic diaphragm 12a contracts inward under external water pressure. This causes the gas in the pressure chamber of the buoyancy airbox 12 to return to the strip-shaped pressure-transmitting airbag 17 sequentially through the first air guide pipe 14, the second air guide pipe 15, the main air channel 22, several diversion channels 23, and the heat exchange channels in each strip-shaped heat exchange plate 18. Since the spherical valve core 24 in the flow control valve 21 inhibits the flow rate in the main air channel 22 during this stage, the process of the outwardly bulging elastic diaphragm 12a returning to its initial state will not be instantaneous at the end of the collision, but will gradually return during the upward swing of the energy-absorbing plate 11. This allows the energy-absorbing plate 11 to maintain a high buoyancy state briefly during its upward movement, enabling the energy-absorbing plate 11 to swing upward rapidly.

[0044] If the energy-absorbing plate 11 is not the variable buoyancy characteristic of this scheme, but is directly given a high buoyancy characteristic, the swing amplitude of the energy-absorbing plate 11 after being hit by waves will be significantly reduced, thereby affecting the buffering performance and power generation efficiency.

[0045] In addition, during one up-and-down swing of the energy-absorbing plate 11, a gas exchange occurs between the strip-shaped pressure-transmitting airbag 17 and the buoyancy air box 12. The buoyancy air box 12 is closely located in the relatively cold seawater, so the air inside the buoyancy air box 12 is relatively cold. During the gas exchange process, the heat exchange channels in each strip-shaped heat exchange plate 18 are the necessary pathways for the flowing gas in the gas exchange. As a result, each up-and-down swing of the energy-absorbing plate 11 will cause a relatively cold gas to flow quickly through the heat exchange channels in each strip-shaped heat exchange plate 18, thereby effectively removing the heat from each strip-shaped heat exchange plate 18, thus achieving periodic and efficient active heat dissipation of the rotor induction coil unit 20.

[0046] 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 peripheral wave-damping power generation system for a floating offshore unit, characterized by: The system includes a floating unit at sea; a transverse wave-damping bracket (1) is fixedly installed on the periphery of the floating unit at sea, and a number of power-generating wave-damping devices (2) are arranged in an array along the length direction on the outer side of the transverse wave-damping bracket (1). The power-generating wave-damping device (2) includes an inclined energy-absorbing plate (11), the lower part of which is submerged below the water surface (39), and the energy-absorbing plate (11) can rotate and swing around a pivot. The density of the energy-absorbing plate (11) is less than that of seawater. In a stable state, the energy-absorbing plate (11) remains in balance under the combined action of gravity and buoyancy. When the wave-facing surface (11a) of the energy-absorbing plate (11) is impacted by waves, the pivot corresponding to the energy-absorbing plate (11) swings downward adaptively. The power generation wave damper (2) includes a first connecting arm (3) fixed to the lower side of the transverse wave damper bracket (1), a transverse fixed outer cylinder (7) fixedly connected to the lower side of the first connecting arm (3), a cantilever (4) fixed to one end of the upper part of the transverse fixed outer cylinder (7), and a rotating shaft (10) rotatably mounted on the lower side of the cantilever (4) through a bearing seat (5) and a bearing; the rotating shaft (10) is fixedly connected to the upper end of the energy absorbing plate (11) through a swing arm (6); The rotating shaft (10) is coaxially arranged with the transverse fixed outer cylinder (7); one end of the rotating shaft (10) is coaxially fixedly connected to a generator rotor (74), and a generator stator (8) is coaxially arranged inside the generator rotor (74). One end of the generator stator (8) is fixedly connected to the transverse fixed outer cylinder (7) through a second connecting arm (9). The generator stator (8) is a permanent magnet stator; the generator rotor (74) includes an air guide disc (51), a heat dissipation cylinder (19) and a rotor induction coil unit (20). The outer ring of the air guide disc (51) is coaxially and integrally connected to one end of the heat dissipation cylinder (19). The rotor induction coil unit (20) is coaxially heat-transferring and fitted to the inner wall of the heat dissipation cylinder (19) and is coaxially fitted to the generator stator (8). At least one buoyancy air box (12) is fixedly installed on the lower surface of the part of the energy-absorbing plate (11) that is immersed in water. The buoyancy air box (12) is a pressure air chamber. The wall of the buoyancy air box (12) away from the energy-absorbing plate (11) is an elastic diaphragm (12a). The elastic diaphragm (12a) is kept in balance under the combined action of the air pressure in the pressure air chamber inside the buoyancy air box (12) and the external water pressure. The outer wall of the heat dissipation rotating cylinder (19) is integrally arranged in a circumferential array with several strip-shaped heat exchange plates (18) extending along the axial direction. Each of the strip-shaped heat exchange plates (18) has an outwardly bulging strip-shaped pressure-transmitting airbag (17) on one side along its length; a first air guide pipe (14) is provided on the energy-absorbing plate (11), a second air guide pipe (15) extends along its length on the swing arm (6), a main air channel (22) is provided inside the rotating shaft (10) along its length, and a heat exchange channel is provided inside each of the strip-shaped heat exchange plates (18). One end of the main air channel (22) is connected to the heat exchange channel inside each strip-shaped heat exchange plate (18) through several branch channels (23) arranged in a circular array on the air guide turntable (51). Each of the strip-shaped pressure-transmitting airbags (17) Each of the strip heat exchange channels (18) is connected to the heat exchange channels in each strip heat exchange plate (18); the other end of the main air channel (22) is connected to the upper end of the second air pipe (15), and the lower end of the second air pipe (15) is connected to the pressure chamber in each buoyancy air box (12) through the first air pipe (14), so that the pressure chamber in the buoyancy air box (12) is connected to each of the strip pressure transmission air bags (17) in sequence through the first air pipe (14), the second air pipe (15), the main air channel (22), several diversion channels (23) and the heat exchange channels in each strip heat exchange plate (18); under stable conditions, each strip pressure transmission air bag (17) bulges outward under the action of internal pressure; The inner wall of the horizontally fixed outer cylinder (7) is arranged in a circumferential array with several collision strips (16) parallel to the axis. In a stable state, any strip heat exchange plate (18) is centered between two adjacent collision strips (16). The counterclockwise rotation of the heat dissipation rotating cylinder (19) can cause the strip-shaped pressure transmission air bag (17) on one side of the strip heat exchange plate (18) to collide with the corresponding collision strip (16).

2. A peripheral wave power generation system for a sea floating unit according to claim 1, characterized in that: When each strip-shaped pressure-transmitting airbag (17) collides with its corresponding collision strip (16), more than 90% of the energy-absorbing plate (11) itself is immersed in water.

3. A peripheral wave power generating system of a sea floating unit according to claim 2, characterized in that: A flow control valve (21) is installed in the main gas channel (22). When the gas in the main gas channel (22) flows into each of the several branch channels (23), the flow control valve (21) suppresses the flow rate in the main gas channel (22); when the gas in the several branch channels (23) flows into the main gas channel (22), the flow control valve (21) does not suppress the flow rate in the main gas channel (22).

4. A peripheral wave power generating system of a sea floating unit according to claim 3, characterized in that: The flow control valve (21) includes a valve tube (26) that runs through the axis. A tapered channel (27) is provided inside the valve tube (26). The narrow end of the tapered channel (27) faces the air guide turntable (51). A spherical valve core (24) is provided inside the tapered channel (27). Several flow-limiting holes (25) are evenly hollowed out on the spherical valve core (24). A radial spherical limiting bracket (28) is fixedly connected to the inner wall of the thick end of the tapered channel (27). When the spherical valve core (24) is coaxially attached to the inner wall of the tapered channel (27), the spherical valve core (24) and the radial spherical limiting bracket (28) form a distance. When the gas in the main gas channel (22) flows into each of the several branch channels (23), the lightweight spherical valve core (24) is driven by the gas to coaxially fit the inner wall of the conical channel (27), so that the gas flowing through the valve tube (26) must pass through each flow-limiting hole (25), thereby achieving the purpose of flow restriction; When the gas in the several branch channels (23) flows into the main gas channel (22), the lightweight spherical valve core (24) is driven by the gas to detach from the inner wall of the conical channel (27), thereby making the flow control valve (21) unobstructed.