Peripheral wave-absorbing power generation system of offshore floating unit

By installing a power generation wave destroyer on the periphery of the offshore floating unit, using the kinetic energy of the sea wave to generate power, the problem of difficult to take into account both wave cancellation and power generation functions in the existing technology is solved, and efficient conversion and utilization of wave kinetic energy is achieved.

CN120042173AActive Publication Date: 2025-05-27NANTONG INST OF TECH
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Patent Information

Application Number
CN202510381954.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-05-27
Estimated Expiration
2045-03-28

AI Technical Summary

Technical Problem

The prior art is difficult to effectively utilize the kinetic energy in the waves while eliminating waves, and the edges of the offshore floating units are easily impacted by the waves, which affects the service life and livability.

Method used

A peripheral wave-absorbing power generation system for offshore floating units is designed, using a power generation wave-absorbing device, including an oblique energy-absorbing plate, rotary shaft, generator rotor and induction coil unit. The energy-absorbing plate swings about the axis under the impact of the waves, driving the generator rotor to generate an induced current and convert the kinetic energy of the waves into electrical energy.

Benefits of technology

It realizes the effective use of wave kinetic energy for power generation while eliminating waves, reduces the risk of wave impact on the edges of offshore floating units, extends the service life of the structure, and improves the livability of the island.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a peripheral wave-absorbing power generation system of an offshore floating unit. The peripheral wave-absorbing power generation system comprises the offshore floating unit, a transverse wave absorber support is fixedly arranged on the periphery of the offshore floating unit, a plurality of power generation type wave absorbers are arranged on the outer side of the transverse wave absorber support in the length direction in an array mode, each power generation type wave absorber comprises an inclined energy absorption plate, the lower portion of each energy absorption plate is immersed below the water surface, and each energy absorption plate can rotate and swing around a rotating shaft. In a stable state, the energy absorption plates keep balance under the combined action of gravity and buoyancy, and when the wave facing faces of the energy absorption plates are impacted by sea waves, the rotating shafts corresponding to the energy absorption plates swing downwards adaptively; the wave-absorbing and energy-absorbing device has a power generation function while absorbing wave and energy.
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Description

Technical Field

[0001] The present invention belongs to the field of wave buffering and wave elimination. Background Art

[0002] Installing a wave shock wave elimination device around an artificial floating island can effectively reduce the impact of waves on the main body of the island, effectively mitigate such impact, and extend the service life of the main structure; at the same time, it can play a role in suppressing the problem of the floating island translating due to wave impact; at the same time, the wave shock wave elimination device can improve the livability of the island and attract more residents and tourists.

[0003] At the same time, the applicant noticed that the wave and surge contain wave impact kinetic energy. If the energy in the waves is 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 is designed. Summary of the Invention

[0004] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a peripheral wave elimination and power generation system for a marine floating unit, which has a power generation function while eliminating waves and absorbing energy.

[0005] Technical Solution: To achieve the above object, the peripheral wave elimination and power generation system for a marine floating unit of the present invention includes a marine floating unit; a transverse wave eliminator bracket is fixedly arranged on the periphery of the marine floating unit, and a plurality of power generation type wave eliminators are arranged in an array along the length direction on the outer side of the transverse wave eliminator bracket. The power generation type wave eliminator includes an inclined energy absorption plate, the lower part of the energy absorption plate is immersed below the water surface, and the energy absorption plate can rotate and swing around a rotating shaft. The density of the energy absorption plate is less than the density of seawater. In a stable state, the energy absorption plate maintains balance under the combined action of gravity and buoyancy. When the wave-facing surface of the energy absorption plate is impacted by waves, the corresponding rotating shaft of the energy absorption plate adaptively swings downward.

[0006] Further, the power generation type wave eliminator includes a connecting arm fixed to the lower side of the transverse wave eliminator bracket. A transverse fixed outer cylinder is fixedly connected to the lower side of the connecting arm. One end of the upper part of the transverse fixed outer cylinder is fixed with a cantilever, and 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 absorption plate through a swing arm.

[0007] Further, the rotating shaft is coaxially arranged with the transverse fixed outer cylinder; one end of the rotating shaft is coaxially fixedly connected with 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 transverse fixed outer cylinder through a connecting arm.

[0008] Further, the generator stator is a permanent magnet stator; the generator rotor includes a gas guiding turntable, a heat dissipation rotating cylinder and a rotor induction coil unit. The outer ring of the gas guiding turntable is integrally connected to one end of the heat dissipation rotating cylinder coaxially, and the rotor induction coil unit is coaxially heat transfer-fitted to the inner wall of the heat dissipation rotating cylinder and is coaxially fitted with the generator stator.

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

[0010] Furthermore, at least one floating air tank is fixedly arranged on the lower surface of the part of the energy absorption plate immersed in water. The floating air tank is a pressure air chamber. The wall body on the side of the floating air tank away from the energy absorption plate is an elastic diaphragm, and the elastic diaphragm maintains balance under the combined action of the air pressure in the pressure air chamber of the floating air tank and the external water pressure; on one side of each strip-shaped heat exchange fin, a strip-shaped pressure transmission air bag bulging outwards is arranged along the length direction; a first air guide pipe is arranged on the energy absorption plate, a second air guide pipe extends along the length direction on the swing arm, and a main air guide channel is arranged along the length direction in the rotating shaft. A heat exchange channel is arranged inside each strip-shaped heat exchange fin. One end of the main air guide channel is respectively communicated with the heat exchange channels inside each strip-shaped heat exchange fin through a plurality of shunt channels arranged in a circumferential array on the air guide turntable. Each strip-shaped pressure transmission air bag is respectively communicated with the heat exchange channels inside each strip-shaped heat exchange fin; the other end of the main air guide channel is communicated with the upper inclined end of the second air guide pipe, and the lower inclined end of the second air guide pipe is communicated with the pressure air chambers inside each floating air tank through the first air guide pipe, so that the pressure air chambers inside the floating air tanks are sequentially communicated with each strip-shaped pressure transmission air bag through the first air guide pipe, the second air guide pipe, the main air guide channel, a plurality of shunt channels and the heat exchange channels inside each strip-shaped heat exchange fin; in a stable state, each strip-shaped pressure transmission air bag bulges outwards under the action of the internal pressure.

[0011] A plurality of collision strips parallel to the axis are arranged in a circumferential array on the inner wall of the horizontally fixed outer cylinder. In a stable state, any strip-shaped heat exchange fin is centered between two adjacent collision strips. The counterclockwise rotation of the heat dissipation rotating cylinder can make the strip-shaped pressure transmission air bag on one side of the strip-shaped heat exchange fin collide with the corresponding collision strip. When each strip-shaped pressure transmission air bag collides with the corresponding collision strip, more than % of the part of the energy absorption plate itself is immersed in water.

[0012] Furthermore, a flow control valve is arranged in the main air guide channel. When the gas in the main air guide channel flows into each plurality of shunt channels, the flow control valve restricts the flow in the main air guide channel; when the gas in the plurality of shunt channels flows into the main air guide channel, the flow control valve does not restrict the flow in the main air guide channel.

[0013] Furthermore, the flow control valve includes a valve pipe penetrating along the axis. A conical channel is arranged in the valve pipe. The thin end of the conical channel faces the side of the air guide turntable. A spherical shell-shaped valve core is arranged in the conical channel. A plurality of flow limiting holes are evenly hollowed out on the spherical shell-shaped valve core; a radially spherical limiting bracket is fixedly connected to the inner wall of the thick end of the conical channel. When the spherical shell-shaped valve core fits with the inner wall of the conical channel coaxially, a distance is formed between the spherical shell-shaped valve core and the radially spherical limiting bracket.

[0014] When the gas in the main gas channel flows into several shunt channels, the lightweight spherical valve core fits coaxially against the inner wall of the conical channel under the drive of the gas, so that the gas flowing through the valve tube needs to pass through each flow-limiting hole, thus achieving the purpose of flow limiting;

[0015] When the gas in several shunt channels flows into the main gas channel, the lightweight spherical valve core is separated from the inner wall of the conical channel under the drive of the gas, so that the flow control valve is unblocked.

[0016] Beneficial effects: The energy absorption plate of the present invention swings downward around the rotating shaft under the impact of the kinetic energy of the sea wave, and then does work during the downward swing process and absorbs the impact kinetic energy from the sea wave, avoiding the direct impact of the sea wave on the edge of the offshore floating unit;

[0017] During one impact cycle of the impact of any sea wave, the energy absorption plate swings up and down once; each time the energy absorption plate swings up and down, it will drive the generator rotor to rotate back and forth in a positive and negative direction once, so that a wave of induced current is generated in the rotor induction coil unit on the generator rotor, thus achieving the purpose of converting the impact kinetic energy of the sea wave into electrical energy;

[0018] By effectively reversing the downward swing action of the energy absorption plate and temporarily increasing the buoyancy of the energy absorption plate after the downward swing, the energy absorption plate quickly floats upward during the upward floating stage, so that after the wave-facing surface is impacted by the first sea wave and swings downward into the water, it can float upward and swing upward to the greatest extent before the second sea wave arrives, avoiding the problem of being too late to receive the second sea wave;

[0019] Each up-and-down swing of the energy absorption plate will cause the cold gas to flow quickly through the heat exchange channels in each strip-shaped heat exchange fin, and then effectively take away the heat of each strip-shaped heat exchange fin, thus realizing the periodic and efficient active heat dissipation of the rotor induction coil unit. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall solution;

[0021] Figure 2 It is a schematic diagram of another perspective of the overall single-group power generation type wave eliminator;

[0022] Figure 3 It is a schematic diagram of the structure of the movable part of the single-group power generation type wave eliminator;

[0023] Figure 4 It is a schematic diagram of the process of the up-and-down swing state conversion of the energy absorption plate of the single-group power generation type wave eliminator. Detailed Embodiments

[0024] The present invention will be further described below with reference to the drawings.

[0025] As shown in Figure 1 Figure 4 of the offshore floating unit's peripheral wave elimination and power generation system shown, asFigure 1 As shown, it includes a floating unit on the sea, such as an artificial floating island, an artificial floating micro-city, etc.; a transverse muffler bracket 1 is fixedly arranged on the periphery of the floating unit on the sea, and a number of power generation mufflers 2 are arranged in an array along the length direction on the outer side of the transverse muffler bracket 1. The power generation muffler 2 includes an inclined energy absorption plate 11. The energy absorption plate 11 is a high-strength composite plate with a density lower than that of seawater, and is a composite structure with polyurethane foam filled inside and a high-strength outer shell outside, such as Figure 4 As shown in the upper figure of

[0026] The power generation muffler 2 includes a connecting arm 3 fixed to the lower side of the transverse muffler bracket 1. A transverse fixed outer cylinder 7 is fixedly connected to the lower side of the connecting arm 3. One end of the upper part of the transverse fixed outer cylinder 7 is fixed with a cantilever 4. 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 and fixedly connected with a generator rotor 74. 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 connecting arm 9.

[0028] The generator stator 8 is a permanent magnet stator; the generator rotor 74 includes a gas guiding turntable 51, a heat dissipation rotating cylinder 19 and a rotor induction coil unit 20. The outer ring of the gas guiding turntable 51 is coaxially and integrally connected to one end of the heat dissipation rotating cylinder 19. The rotor induction coil unit 20 is coaxially heat transfer-fitted on the inner wall of the heat dissipation rotating cylinder 19 and is coaxially fitted with the generator stator 8.

[0029] A number of strip-shaped heat exchange fins 18 extending along the axial direction are integrally arranged in a circumferential array on the outer wall of the heat dissipation rotating cylinder 19.

[0030] such as Figure 2As shown, at least one floating air chamber 12 is fixedly arranged on the lower surface of the energy-absorbing plate 11 in the part immersed in water. The floating air chamber 12 is a corrosion-resistant shell structure as a whole. The inside of the floating air chamber 12 is a pressure air chamber. The wall body of the floating air chamber 12 on the side away from the energy-absorbing plate 11 is an elastic diaphragm 12a. The elastic diaphragm 12a maintains balance under the combined action of the air pressure in the pressure air chamber of the floating air chamber 12 and the external water pressure. The elastic diaphragm 12a is a fluororubber FKM-coated ultra-high molecular weight polyethylene UHMWPE fiber-reinforced composite material. The substrate layer of this material structure: ultra-high molecular weight polyethylene UHMWPE fiber woven layer, characteristics, as the core reinforcement layer, provides the main mechanical support, resists seawater pressure and mechanical impact, and prevents the airbag from bursting or deforming. Elastic layer: fluororubber FKM coating characteristics: fluororubber has 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 rate of up to 300%. It is coated on the surface of the fiber layer, endowing the airbag with elastic deformation ability, while blocking seawater penetration and preventing fiber corrosion.

[0031] As Figure 2 and 3 As shown, on one side of each strip-shaped heat exchange fin 18, a strip-shaped pressure-transferring airbag 17 bulging outward along the length direction is arranged. The strip-shaped pressure-transferring airbag 17 is a non-elastic high-strength non-breathable flexible cloth body structure. The strip-shaped pressure-transferring airbag 17 is specifically a high-strength aramid fiber fabric coated with TPU thermoplastic polyurethane. This composite material combines the advantages of multiple materials and can provide excellent mechanical strength and durability while maintaining flexibility. Substrate layer: aramid fiber fabric. Material characteristics: aramid has extremely high tensile strength of about 3,000 MPa and puncture resistance, and at the same time has a low density and high temperature resistance decomposition temperature > 500°C. As the structural framework of the airbag, it provides the main mechanical support, resists internal air pressure and external impact, and ensures that the airbag is not easily torn or deformed. Coating / sealing layer: thermoplastic polyurethane TPU. Material characteristics: TPU has excellent wear resistance, flexibility, adjustable bending modulus, from soft to semi-rigid, and gas barrier properties. It is coated on the surface of the aramid fabric to form an airtight layer, prevent gas leakage, and at the same time enhance the surface wear resistance and chemical corrosion resistance.

[0032] The first air duct 14 is provided on the energy-absorbing plate 11, the second air duct 15 extends along the length direction on the swing arm 6, the main air channel 22 is arranged along the length direction inside the rotating shaft 10, and a heat exchange channel is arranged inside each strip-shaped heat exchange fin 18. One end of the main air channel 22 is respectively communicated with the heat exchange channels inside each strip-shaped heat exchange fin 18 through a plurality of shunt channels 23 arranged in a circumferential array on the air guide turntable 51, and each strip-shaped pressure transmission air bag 17 is respectively communicated with the heat exchange channels inside each strip-shaped heat exchange fin 18; the other end of the main air channel 22 is communicated with the upper inclined end of the second air duct 15, and the lower inclined end of the second air duct 15 is communicated with the pressure air chamber inside each floating air tank 12 through the first air duct 14, so that the pressure air chamber inside the floating air tank 12 is sequentially communicated with each strip-shaped pressure transmission air bag 17 through the first air duct 14, the second air duct 15, the main air channel 22, a plurality of shunt channels 23 and the heat exchange channels inside each strip-shaped heat exchange fin 18; in a stable state, each strip-shaped pressure transmission air bag 17 bulges outwards under the action of the internal pressure.

[0033] A plurality of collision bars 16 parallel to the axis are arranged in a circumferential array on the inner wall of the horizontally fixed outer cylinder 7. In a stable state, any strip-shaped heat exchange fin 18 is centered between two adjacent collision bars 16. As Figure 2 shown in the perspective view, the counterclockwise rotation of the heat dissipation rotating cylinder 19 can make the strip-shaped pressure transmission air bag 17 on one side of the strip-shaped heat exchange fin 18 collide with the corresponding collision bar 16. When each strip-shaped pressure transmission air bag 17 collides with the corresponding collision bar 16, as Figure 4 shown in the lower figure of, more than 90% of the energy-absorbing plate 11 itself is immersed in water.

[0034] A flow control valve 21 is arranged in the main air channel 22. When the gas in the main air channel 22 flows into each of the plurality of shunt channels 23, the flow control valve 21 restricts the flow in the main air channel 22; when the gas in the plurality of shunt channels 23 flows into the main air channel 22, the flow control valve 21 does not restrict the flow in the main air channel 22.

[0035] The flow control valve 21 includes a valve tube 26 penetrating along the axis. A conical channel 27 is arranged in the valve tube 26. The thin end of the conical channel 27 faces the side of the air guide turntable 51. A spherical shell-shaped valve core 24 is arranged in the conical channel 27, and a plurality of flow limiting holes 25 are uniformly hollowed out on the spherical shell-shaped valve core 24; a radially spherical limiting bracket 28 is fixedly connected to the inner wall of the thick end of the conical channel 27. When the spherical shell-shaped valve core 24 fits the inner wall of the conical channel 27 coaxially, a distance is formed between the spherical shell-shaped valve core 24 and the radially spherical limiting bracket 28.

[0036] When the gas in the main gas channel 22 flows into the plurality of shunt channels 23, the lightweight spherical valve core 24 is coaxially attached to the inner wall of the conical channel 27 under the drive of the gas, so that the gas flowing through the valve tube 26 needs to pass through the respective flow-limiting holes 25, thereby achieving the purpose of flow limiting; when the gas in the plurality of shunt channels 23 flows into the main gas channel 22, the lightweight spherical valve core 24 is separated from the inner wall of the conical channel 27 under the drive of the gas, so that the flow control valve 21 is unblocked.

[0037] Working principle: In an ideal calm state, the energy absorption plate 11 is balanced under the combined action of gravity and buoyancy; at the same time, the elastic diaphragm 12a is balanced under the combined action of the air pressure in the pressure chamber of the floating air tank 12 and the external water pressure;

[0038] When the wave-facing surface 11a of the energy absorption plate 11 is impacted by a sea wave, the energy absorption plate 11 swings downward around the rotating shaft 10 under the impact of the kinetic energy of the sea wave, and then does work during the downward swing process and absorbs the impact kinetic energy from the sea wave, avoiding the direct impact of the sea wave on the edge of the offshore floating unit; during the process of the energy absorption plate 11 swinging downward under the impact of the sea wave, its own drainage volume becomes larger, so that the buoyancy force received by the energy absorption plate 11 gradually becomes larger and exceeds the gravity. Therefore, when the energy absorption plate 11 swings downward to a certain extent, in this case, when the energy absorption plate 11 swings downward until 90% of itself is submerged in seawater, the energy absorption plate 11 floats upward again under the action of the buoyancy force and swings upward to the initial position, and waits to receive a new wave of sea waves; in one impact cycle of the impact of any wave of sea waves, the energy absorption plate 11 swings up and down once; each time the energy absorption plate 11 swings up and down once, it will drive the generator rotor 74 to rotate back and forth in a positive and negative direction once, so that a wave of induced current is generated in the rotor induction coil unit 20 on the generator rotor 74, thereby achieving the purpose of converting the impact kinetic energy of the sea wave into electric energy;

[0039] Since the main function of the energy absorption plate 11 in this case is to absorb the impact kinetic energy of the sea wave and avoid the direct impact of the sea wave on the edge of the offshore floating unit; since the sea waves are periodic and the time interval between two adjacent waves is sometimes very short, when the wave-facing surface 11a of the energy absorption plate 11 is impacted by the first wave of sea waves and swings downward into the water, if the energy absorption plate 11 has not had time to float upward and swing upward, when the second wave of sea waves comes again immediately, the second wave of sea waves will directly cross over the upper part of the energy absorption plate 11 that has swung downward into the water and directly impact the edge of the offshore floating unit, so that the energy absorption plate 11 has not had time to intercept the second wave of sea waves, thereby weakening the wave-dissipating and energy-absorbing function of the energy absorption plate 11; even if the second wave of sea waves cannot directly cross over the upper part of the energy absorption plate 11 that has swung downward into the water, the second wave of sea waves will also inhibit the upward swing process of the energy absorption plate 11, so that the energy absorption plate 11 cannot swing up and down periodically normally, not only seriously inhibiting the power generation rhythm, but also the swinging energy absorption process is inhibited, causing a rigid impact on the wave-dissipating device bracket 1, and thus shortening the service life;

[0040] The solution of this scheme is that after the wave-facing surface 11a is impacted by the first wave of sea waves and swings downward into the water, it tries to float upward and swing upward as quickly as possible before the second wave of sea waves arrives. The working principle of the wave-facing surface 11a of this case being able to quickly float upward and swing upward after being impacted by the first wave of sea waves and swinging downward into the water is as follows:

[0041] When the wave-facing surface 11a of the energy-absorbing plate 11 is impacted by the first wave of sea waves and swings downward into the water, the heat-dissipating rotating cylinder 19 rotates counterclockwise under the action of the downward swing of the energy-absorbing plate 11, so that the strip-shaped pressure-transfer airbag 17 on one side of each strip-shaped heat-exchanging fin 18 makes a movement gradually approaching the corresponding collision strip 16. When the energy-absorbing plate 11 swings downward to a predetermined depth, the strip-shaped pressure-transfer airbag 17 on one side of each strip-shaped heat-exchanging fin 18 collides with the corresponding collision strip 16. The rebound force of the collision reverses the downward swing action of the energy-absorbing plate 11 non-rigidly in a short time. At the same time, after the strip-shaped pressure-transfer airbag 17 on one side of each strip-shaped heat-exchanging fin 18 collides with the corresponding collision strip 16, each strip-shaped pressure-transfer airbag 17 is instantly subjected to a strong extrusion force, so that the pressure in each strip-shaped pressure-transfer airbag 17 increases in a pulsed manner. Furthermore, the gas in each strip-shaped pressure-transfer airbag 17 is quickly pressed into the pressure air chamber in the floating air tank 12 in turn through the heat-exchanging channels in each strip-shaped heat-exchanging fin 18, each dry shunt channel 23, the main air channel 22, the second air duct 15 and the first air duct 14 under the action of the pulsed pressure, so that the pressure in the pressure air chamber in the floating air tank 12 increases in a pulsed manner. Furthermore, the elastic diaphragm 12a on the side of the floating air tank 12 away from the energy-absorbing plate 11 bulges outward, so as to quickly increase the drainage volume and buoyancy of the floating air tank 12, so that the energy-absorbing plate 11 that reverses the downward swing action quickly floats upward and swings upward under the action of the increased buoyancy, so that after the wave-facing surface 11a is impacted by the first wave of sea waves and swings downward into the water, it can float upward and swing upward as much as possible before the second wave of sea waves arrives, avoiding the problem of not having time to receive the second wave of sea waves;

[0042] During the process of the energy-absorbing plate 11 quickly floating upward and swinging upward under the action of the increased buoyancy, since each collision strip 16 has been separated from the corresponding strip-shaped pressure-transfer airbag 17, the outwardly bulging elastic diaphragm 12a contracts inward under the external water pressure, so that the gas in the pressure air chamber in the floating air tank 12 returns to each strip-shaped pressure-transfer airbag 17 in turn through the first air duct 14, the second air duct 15, the main air channel 22, several shunt channels 23 and the heat-exchanging channels in each strip-shaped heat-exchanging fin 18. Since the spherical valve core 24 in the flow control valve 21 inhibits the flow in the main air channel 22 at this stage, the process of the outwardly bulging elastic diaphragm 12a returning to the initial state inward does not recover instantaneously at the end of the collision, but gradually recovers during the upward swing of the energy-absorbing plate 11. Furthermore, the energy-absorbing plate 11 can maintain a high buoyancy state briefly during the upward floating process, so that the energy-absorbing plate 11 can quickly swing upward.

[0043] If the energy-absorbing plate 11 does not have the variable buoyancy feature of this solution but is directly given a high buoyancy feature, the downward swing amplitude of the energy-absorbing plate 11 after being impacted by the sea waves will be significantly reduced, thus affecting the buffering performance and power generation efficiency.

[0044] In addition, during one up-and-down swing cycle of the energy-absorbing plate 11, there will be a gas exchange between the strip-shaped pressure-transferring airbag 17 and the floating air tank 12. Moreover, the floating air tank 12 is closely located in the relatively cold seawater, so the air in the floating air tank 12 is relatively cold. During the above gas exchange process, the heat exchange channels in each strip-shaped heat exchange fin 18 are the only way for the flowing gas in the gas exchange. Furthermore, each up-and-down swing of the energy-absorbing plate 11 will cause the relatively cold gas to flow through the heat exchange channels in each strip-shaped heat exchange fin 18 quickly, thereby effectively taking away the heat of each strip-shaped heat exchange fin 18, and thus realizing the periodic and efficient active heat dissipation of the rotor induction coil unit 20.

[0045] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. The peripheral wave-breaking power generation system of the offshore floating unit is characterized by: The invention comprises an offshore floating unit; a transverse wave absorber bracket (1) is fixedly arranged on the periphery of the offshore floating unit; a plurality of power-generating wave absorbers (2) are arranged in an array along the length direction on the outer side of the transverse wave absorber bracket (1); the power-generating wave absorbers (2) comprise an oblique energy absorbing plate (11); the lower part of the energy absorbing plate (11) is immersed below the water surface (39); the energy absorbing plate (11) can rotate and swing around a rotating shaft; the density of the energy absorbing plate (11) is less than the density of seawater; 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 waves, the rotating shaft corresponding to the energy absorbing plate (11) adaptively swings downward.

2. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 1 is characterized in that: The power generation type wave absorber (2) comprises a connecting arm (3) fixed to the lower side of a transverse wave absorber bracket (1); the lower side of the connecting arm (3) is fixedly connected to a transverse fixed outer cylinder (7); one end of the upper part of the transverse fixed outer cylinder (7) is fixed to a cantilever (4); a rotating shaft (10) is rotatably mounted on the lower side of the cantilever (4) via a bearing seat (5) and a bearing; the rotating shaft (10) is fixedly connected to the upper end of the energy absorbing plate (11) via a swing arm (6).

3. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 2 is characterized in that: 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 with a generator rotor (74), a generator stator (8) is coaxially arranged inside the generator rotor (74), and one end of the generator stator (8) is fixedly connected to the transverse fixed outer cylinder (7) via a connecting arm (9).

4. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 3 is characterized in that: The generator stator (8) is a permanent magnet stator; the generator rotor (74) comprises an air guide turntable (51), a heat dissipation drum (19) and a rotor induction coil unit (20); the outer ring of the air guide turntable (51) is coaxially connected to one end of the heat dissipation drum (19); the rotor induction coil unit (20) is coaxially heat-conductingly matched with the inner wall of the heat dissipation drum (19) and is coaxially matched with the generator stator (8).

5. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 4 is characterized in that: The outer wall of the heat dissipation rotating cylinder (19) is integrally provided with a plurality of strip-shaped heat exchange fins (18) extending along the axial direction in a circumferential array.

6. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 5 is characterized in that: At least one buoyancy air box (12) is fixedly arranged on the lower surface of the part of the energy absorbing plate (11) immersed in water, the buoyancy air box (12) contains a pressure air chamber, the wall of the buoyancy air box (12) away from the energy absorbing plate (11) is an elastic diaphragm (12a), and the elastic diaphragm (12a) maintains balance under the combined action of the air pressure of the pressure air chamber in the buoyancy air box (12) and the external water pressure; A strip-shaped pressure-transmitting airbag (17) that bulges outward is arranged on one side of each of the strip-shaped heat exchange fins (18) along the length direction; a first air guide tube (14) is arranged on the energy absorbing plate (11); a second air guide tube (15) is extended along the length direction on the swing arm (6); a main air flow channel (22) is arranged inside the rotating shaft (10) along the length direction; a heat exchange channel is arranged inside each of the strip-shaped heat exchange fins (18); one end of the main air flow channel (22) is connected to the heat exchange channel inside each of the strip-shaped heat exchange fins (18) through a plurality of branch channels (23) distributed in a circumferential array on the air guide turntable (51); and each of the strip-shaped pressure-transmitting airbags (17) is connected to the heat exchange channel inside each of the strip-shaped heat exchange fins (18); The main air flow channel (22) is connected to the heat exchange channels in each strip-shaped heat exchange fin (18); the other end of the main air flow channel (22) is connected to the upper oblique end of the second air guide pipe (15); the lower oblique end of the second air guide pipe (15) is connected to the pressure air chamber in each buoyancy air box (12) through the first air guide pipe (14), so that the pressure air chamber in the buoyancy air box (12) is connected to each strip-shaped pressure transmission air bag (17) in sequence through the first air guide pipe (14), the second air guide pipe (15), the main air flow channel (22), a plurality of branch channels (23) and the heat exchange channels in each strip-shaped heat exchange fin (18); in a stable state, each strip-shaped pressure transmission air bag (17) bulges outwards under the action of the internal pressure; The inner wall of the transverse fixed outer cylinder (7) is provided with a plurality of collision strips (16) parallel to the axis in a circumferential array. In a stable state, any strip-shaped heat exchange fin (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 airbag (17) on one side of the strip-shaped heat exchange fin (18) to collide with the corresponding collision strip (16).

7. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 6 is characterized by: When each strip-shaped pressure-transmitting airbag (17) collides with the corresponding collision strip (16), more than 90% of the energy-absorbing plate (11) itself is immersed in water.

8. The peripheral wave-breaking power generation system of an offshore floating unit according to claim 6 is characterized in that: A flow control valve (21) is provided in the main air channel (22); when the gas in the main air channel (22) flows into the plurality of branch channels (23), the flow control valve (21) suppresses the flow in the main air channel (22); when the gas in the plurality of branch channels (23) flows into the main air channel (22), the flow control valve (21) does not suppress the flow in the main air channel (22).

9. The peripheral wave-breaking power generation system of the offshore floating unit according to claim 8 is characterized in that: The flow control valve (21) comprises a valve tube (26) which passes through the valve tube (26) along the axis. A conical channel (27) is arranged in the valve tube (26). The thin end of the conical channel (27) faces the air guide turntable (51). A spherical shell valve core (24) is arranged in the conical channel (27). A plurality of flow limiting holes (25) are evenly hollowed out on the spherical shell valve core (24). A radial spherical limiting bracket (28) is fixedly connected to the inner wall of the thick end of the conical channel (27). When the spherical shell valve core (24) is coaxially attached to the inner wall of the conical channel (27), a distance is formed between the spherical shell valve core (24) and the radial spherical limiting bracket (28). When the gas in the main air flow channel (22) flows into the plurality of branch flow channels (23), the light spherical shell valve core (24) is coaxially attached to the inner wall of the tapered channel (27) under the drive of the gas, so that the gas flowing through the valve tube (26) must pass through the flow limiting holes (25), thereby achieving the purpose of flow limiting; When the gas in the plurality of branch channels (23) flows into the main gas channel (22), the light spherical shell valve core (24) is driven by the gas to separate from the inner wall of the tapered channel (27), thereby allowing the flow control valve (21) to be unblocked.

Citation Information

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