Floating offshore wind and wave energy integrated power generation device

Abstract

The present application relates to offshore power generation equipment technical field, and disclose a kind of floating offshore wind power and wave energy integrated power generation device, comprising: floating column, the floating column is provided with multiple, wave energy power generation device, the wave energy power generation device is arranged on the surface of floating column, the wave energy power generation device includes the wave energy power generation platform being arranged on the surface of floating column, the periphery of the wave energy power generation platform is provided with multiple floating plate, wind power generation device, the wind power generation device is arranged on the surface of floating column, the wind power generation device is provided with multiple groups, the wind power generation device includes the fixed column being arranged on the surface of floating column, the top of the fixed column is provided with wind turbine, the present application solves the problem that wind power generation equipment and wave energy power generation equipment need to be deployed multiple floating platforms in the same environment of sea level, which will consume higher input resources, and also waste the area resources of offshore power generation environment.

Description

Technical Field

[0001] This invention relates to the field of marine renewable energy utilization technology, and more specifically, to a floating offshore wind and wave energy integrated power generation device. Background Technology

[0002] Offshore power generation equipment refers to devices deployed in the marine environment that convert marine renewable energy or marine space resources into electrical energy. Such as wind energy, wave energy, tidal energy, and solar energy are all renewable energy sources. Among them, offshore wind power is currently the most mature offshore power generation technology. As the core form of marine renewable energy development, offshore power generation has significant advantages such as superior resource endowment, efficient space utilization, and strong environmental adaptability. It is an important direction for promoting global energy transformation and ensuring energy security for coastal areas and islands.

[0003] Offshore power generation technology requires the deployment of floating platforms to ensure the operation of power generation equipment at sea. Wave power generation and offshore wind power generation both require the deployment of a large number of floating platforms. Moreover, wave energy and wind energy require very similar marine environments. Wind power generation relies on high wind speeds to provide electricity, while wave energy relies on wave undulations and wind speeds in the current environment. Both require high wind speeds at sea level to provide electricity. Deploying wind power generation equipment and wave power generation equipment at sea level in the same environment requires the deployment of multiple floating platforms, which will consume high investment resources and waste the area resources of the offshore power generation environment. Summary of the Invention

[0004] The purpose of this invention is to provide a floating offshore wind and wave energy integrated power generation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Floating columns, wherein multiple floating columns are provided; A wave energy power generation device is installed on the surface of a floating column. The wave energy power generation device includes a wave energy power generation platform installed on the surface of the floating column, and multiple floating plates are arranged around the perimeter of the wave energy power generation platform. A wind power generation device is installed on the surface of a floating column. Multiple sets of wind power generation devices are provided. Each wind power generation device includes a fixed column installed on the surface of the floating column. A wind turbine is installed at the top of the fixed column, and a wind turbine blade is installed at the transmission end of the wind turbine. The surface of the fixed column is provided with an equipment stabilizing device, and the surface of the floating column is provided with an equipment fixing device.

[0006] Preferably, the equipment stabilizing device includes a triangular fixing frame, which is fixedly connected to multiple fixed columns. Multiple connecting ropes are fixedly connected to the surface of the triangular fixing frame, and a counterweight ball is fixedly connected to the other end of each connecting rope.

[0007] Preferably, the equipment fixing device includes a three-claw fixing frame, which is fixedly connected to multiple floating columns. An iron chain is fixedly connected to the surface of the three-claw fixing frame, and a fixing base is fixedly connected to the other end of the iron chain.

[0008] Preferably, the surface of the wave energy generation platform is provided with a fixing block, the surface of the counterweight ball is fixedly connected with a spring, and the other end of the spring is fixedly connected to the fixing block.

[0009] Preferably, a ball head base is fixedly connected to the surface of the counterweight ball and the fixing block, and a plurality of damping telescopic rods are provided on the surface of the counterweight ball. Rotating ball heads are provided at both ends of the damping telescopic rods, and the rotating ball heads are connected to the ball head base.

[0010] Preferably, a water pump is provided on the surface of the counterweight ball, and the water pump is fixedly connected to and communicates with the counterweight ball. The water pump is located at the water inlet end of the counterweight ball, and the water inlet end of the water pump is fixedly connected to and communicates with a suction pipe.

[0011] Preferably, a drain pipe is fixedly connected to and communicates with the surface of the counterweight ball, the drain pipe is located at the water outlet end of the counterweight ball, and a control water valve is provided on the surface of the drain pipe.

[0012] Preferably, the surface of the fixing base is provided with a plurality of barbs, and the barbs are distributed around the bottom perimeter of the fixing base.

[0013] Preferably, a support rod is fixedly connected to the surface of the fixed column, and the support rod is fixedly connected to the wave energy power generation platform.

[0014] Preferably, a counterweight is provided on the surface of the water suction pipe.

[0015] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: 1. By setting up floating pillars, wave energy generation devices, and wind power generation devices, a wave energy generation platform is deployed on the same floating platform at sea level. The floating platform is driven to rise and fall by the waves on the sea surface, thereby generating kinetic energy for power generation. Wind power generation equipment is deployed above the floating platform, so that the wind in the air can drive the wind turbine blades to rotate and generate wind power. This effectively reduces the number of offshore power generation facilities, effectively improves the efficiency of offshore power generation, and realizes the efficient utilization of marine space and resources.

[0016] 2. By setting up equipment stabilization and fixing devices, when the floating platform experiences significant swaying, the pendulum of the counterweight ball above the floating platform applies a counterforce in the direction of swaying, thereby counteracting the significant swaying caused by airflow. Furthermore, the floating platform is tethered to the bottom of the sea surface by chains to prevent it from drifting, thus confining the power generation floating platform within the designated area and effectively improving the stability of equipment operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of a partial structure; Figure 3 This is a schematic diagram of the structure of the device stabilization device of the present invention; Figure 4 This is a schematic diagram of the structure of the device fixing device of the present invention; Figure 5 This is a schematic diagram of the counterweight ball and spring of the present invention; Figure 6 This is a schematic diagram of the counterweight ball and water pump of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the spring part of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Floating column; 2. Wave power generation device; 201. Wave power generation platform; 202. Floating board; 3. Wind power generation device; 301. Fixed column; 302. Wind turbine blade; 303. Wind turbine; 304. Support rod; 4. Equipment stabilizing device; 41. Triangular fixing frame; 411. Connecting rope; 42. Counterweight ball; 43. Spring; 431. Damping telescopic rod; 432. Rotating ball head; 433. Ball head base; 434. Fixing block; 44. Water pump; 441. Suction pipe; 442. Counterweight block; 45. Drainage pipe; 451. Control water valve; 5. Equipment fixing device; 501. Three-jaw fixing frame; 502. Iron chain; 503. Fixing base; 504. Barb. Detailed Implementation

[0019] Example 1: A floating offshore wind and wave energy integrated power generation device, referring to Figures 1-7, includes: a floating column 1, of which multiple floating columns 1 are provided; a wave energy power generation device 2, which is disposed on the surface of the floating columns 1, and includes a wave energy power generation platform 201 disposed on the surface of the floating columns 1, with multiple floating plates 202 disposed around the perimeter of the wave energy power generation platform 201; a wind power generation device 3, which is disposed on the surface of the floating columns 1, with multiple sets of wind power generation devices 3, and includes a fixed column 301 disposed on the surface of the floating columns 1, with a wind turbine 303 disposed at the top of the fixed column 301, and wind turbine blades 302 disposed at the transmission end of the wind turbine 303; a support rod 304 is fixedly connected to the surface of the fixed column 301, and the support rod 304 is fixedly connected to the wave energy power generation platform 201; an equipment stabilizing device 4 is disposed on the surface of the fixed column 301, and an equipment fixing device 5 is disposed on the surface of the floating columns 1.

[0020] like Figures 1 to 2 As shown, the wave energy power generation device 2 is installed on the surface of the floating column 1. The wave energy power generation device 2 includes a wave energy power generation platform 201 installed on the surface of the floating column 1. Multiple floating plates 202 are arranged around the periphery of the wave energy power generation platform 201. When the wave energy power generation is running, the floating plates 202 make pitching or swinging motions around a fixed axis to capture the lateral and longitudinal energy of the waves. Then, through mechanical linkages and hydraulic systems, the swinging mechanical energy is converted into rotational mechanical energy. Subsequently, the rotational mechanical energy drives the generator to generate electricity, thereby realizing wave energy power generation.

[0021] like Figures 1 to 2 As shown, a wind power generation device 3 is installed on the surface of the floating column 1. Multiple wind power generation devices 3 are provided, including a fixed column 301 installed on the surface of the floating column 1. A wind turbine generator 303 is installed at the top of the fixed column 301, and a wind turbine blade 302 is installed at the transmission end of the wind turbine generator 303. A support rod 304 is fixedly connected to the surface of the fixed column 301 and is fixedly connected to the wave energy power generation platform 201. When the wind power generation is running, when the wind blows across the wind turbine blade 302, the airflow drives the wind turbine blade 302 to rotate. The wind turbine blade 302 is connected to the main shaft of the wind turbine generator 303, transmitting rotational kinetic energy to the transmission system. Through a speed-increasing gearbox, the low-speed rotation is increased to the high speed required by the generator, thus completing wind power generation. The rear end of the fixed column 301 of the wind power generation device is connected by the support rod 304, which can effectively improve the stability of the connection between the fixed column 301 and the floating column 1, and improve the stability of the wind power generation device installed on the floating platform.

[0022] like Figure 3 and Figures 4 to 7As shown, the equipment stabilization device 4 includes a triangular fixing frame 41, which is fixedly connected to multiple fixed columns 301. Multiple connecting ropes 411 are fixedly connected to the surface of the triangular fixing frame 41, and a counterweight ball 42 is fixedly connected to the other end of the connecting ropes 411. Affected by wind and airflow, the floating platform will sway, which will affect the operation of wind power generation equipment and wave power generation equipment. For example, if the floating board 202 driven by wave energy leaves the sea surface, when the floating platform sways significantly, the counterweight ball 42 at the center will sway slowly and form a reverse force by relying on gravitational potential energy, which will pull the floating platform to quickly return to its original position and reduce the sway amplitude, thus stabilizing the floating platform.

[0023] like Figure 1 and Figure 4 As shown, the equipment fixing device 5 includes a three-claw fixing frame 501, which is fixedly connected to multiple floating columns 1. An iron chain 502 is fixedly connected to the surface of the three-claw fixing frame 501, and a fixing base 503 is fixedly connected to the other end of the iron chain 502. The fixing base 503 for fixing the floating platform will be installed in advance on the seabed at the bottom of the corresponding power generation floating platform. The fixing base 503 is anchored in the seabed soil layer and connected to the fixing base 502 by the iron chain 502. The other end is connected to the three-claw fixing frame 501 fixed to the floating platform, thereby realizing the traction and fixing of the floating platform.

[0024] like Figure 5 and Figure 7 As shown, a fixed block 434 is provided on the surface of the wave energy power generation platform 201, and a spring 43 is fixedly connected to the surface of the counterweight ball 42. The other end of the spring 43 is fixedly connected to the fixed block 434. A ball head base 433 is fixedly connected to the surface of the counterweight ball 42 and the fixed block 434. Multiple damping telescopic rods 431 are provided on the surface of the counterweight ball 42. Rotating ball heads 432 are provided at both ends of the damping telescopic rods 431. The rotating ball heads 432 are connected to the ball head base 433. When the counterweight ball 42 swings like a pendulum, the spring 43 and the damping telescopic rods 431 at the bottom of the counterweight ball 42 will limit the swing amplitude of the counterweight ball 42. The extension and contraction of the spring 43 in three directions will apply a traction limiting force to the counterweight ball 42, while the damping telescopic rods 431 will quickly reset the reciprocating swing of the spring 43. The internal expansion and contraction of the damping telescopic rods 431 are achieved by the compressed air pressure in the cavity, which ensures that the counterweight ball 42 quickly resets.

[0025] like Figure 3 and Figure 6As shown, a water pump 44 is mounted on the surface of the counterweight ball 42, and the water pump 44 is fixedly connected to and communicates with the counterweight ball 42. The water pump 44 is located at the water inlet end of the counterweight ball 42, and a suction pipe 441 is fixedly connected to and communicates with the water inlet end of the water pump 44. A drain pipe 45 is fixedly connected to and communicates with the surface of the counterweight ball 42, and the drain pipe 45 is located at the water outlet end of the counterweight ball 42. A control water valve 451 is mounted on the surface of the drain pipe 45. Multiple sensors are mounted on the top of the triangular fixing bracket 41. The device is electrically connected to the water pump 44 and the automatic control water valve 451 at the bottom of the counterweight ball 42. When a severe storm is about to arrive, the water pump 44 draws seawater into the interior of the counterweight ball 42 through the suction pipe 441, thereby increasing the weight of the counterweight ball 42. The heavier the counterweight ball 42, the greater the inertial force, making it easier to cope with high-frequency large swings, thereby reducing the swaying of the floating platform. After the storm has passed, the sensor controls the water valve 451 to discharge the seawater in the counterweight ball 42 from the drain pipe 45.

[0026] like Figure 4 As shown, the surface of the fixed base 503 is provided with multiple barbs 504, and the barbs 504 are distributed around the bottom of the fixed base 503. Since the fixed base 503 is fixedly buried at the bottom of the seabed soil layer, the upwardly inclined barbs 504 will penetrate into the sand layer, making the fixed base 503 more stable in the soil layer. These barbs 504 are all steel components, and the fixed base 503 is a concrete pile. During the prefabrication of the pile, the steel barbs 504 are pre-fixed in the concrete pile.

[0027] like Figure 6 As shown, a counterweight 442 is provided on the surface of the suction pipe 441. In order to cooperate with the swaying of the counterweight ball 42, the suction pipe 441 is a soft hose made of soft material. The downward gravity of the counterweight 442 ensures that the bottom of the suction pipe 441 is always below the sea level, thus ensuring the stability of the water pump 44 in sucking water.

[0028] Working principle: When deploying an offshore floating power generation platform, the floating column 1 and wave energy power generation platform 201 are deployed first. Then, wind power generation equipment is deployed on the floating column 1 around the floating platform, realizing the deployment of an integrated wave and wind power generation platform. At the bottom of the corresponding floating platform, a fixed base 503 is pre-installed on the seabed to secure the platform. The fixed base 503 is anchored in the seabed soil and connected by an iron chain 502. The other end of the chain is connected to a three-pronged fixing frame 501 fixed to the floating platform, thus achieving traction and fixation of the floating platform. Wind energy is affected by wind speed fluctuations, while wave energy is related to wind conditions with a lag. During sea level storms... Wave energy is stronger, and the combination of the two can improve the power output. When wave energy is generated, the floating plate 202 moves in pitch or swing around a fixed axis to capture the lateral and longitudinal energy of the waves. Then, through mechanical linkages and hydraulic systems, the swing mechanical energy is converted into rotational mechanical energy. Subsequently, the rotational mechanical energy drives the generator to generate electricity, thus realizing wave energy generation. When wind power is generated, when the wind blows over the wind turbine blades 302, the airflow pushes the wind turbine blades 302 to rotate. The wind turbine blades 302 are connected to the main shaft of the wind turbine generator 303, which transmits the rotational kinetic energy to the transmission system. Through the speed-increasing gearbox, the low-speed rotation is increased to the high speed required by the generator, thus completing wind power generation.

[0029] During power generation, the floating platform will sway due to the influence of wind and airflow. This swaying will affect the operation of wind power generation equipment and wave power generation equipment. For example, if the floating plate 202 driven by wave energy leaves the sea surface, when the floating platform sways significantly, the counterweight ball 42 at the center will sway slowly. It will generate a reverse force based on gravitational potential energy, pulling the floating platform to quickly return to its original position and reducing the sway amplitude. This will eventually stabilize the floating platform. When the counterweight ball 42 swings like a pendulum, the spring 43 at the bottom of the counterweight ball 42 and the damping telescopic rod 431 will limit the sway amplitude of the counterweight ball 42. The extension and contraction of the spring 43 in three directions will apply a traction limiting force to the counterweight ball 42, while the damping telescopic rod 431 will quickly return to its original position. The damping telescopic rod 431 will expand and contract through the compressed air pressure inside the cavity, ensuring that the counterweight ball 42 returns to its original position quickly.

[0030] Multiple sensors are installed at the top of the triangular fixing frame 41. These sensors are electrically connected to the water pump 44 and the automatic control water valve 451 at the bottom of the counterweight ball 42. When a major storm is approaching, the water pump 44 draws seawater through the suction pipe 441 and injects it into the interior of the counterweight ball 42, thereby increasing the weight of the counterweight ball 42. The heavier the counterweight ball 42, the greater the inertial force, making it easier to cope with high-frequency large-amplitude swings, thus reducing the swaying of the floating platform. After the counterweight ball 42 is completely filled with seawater, the height of the floating platform at sea level drops by 5 to 10 centimeters, which does not affect the power generation operation of the wave energy power generation platform 201. After the storm has passed, the sensors control the water valve 451 to discharge the seawater in the counterweight ball 42 from the drain pipe 45. For stable operation, regular inspection and maintenance are essential. This includes the stability of the power generation equipment, whether the electronic equipment is damaged, and the lubrication of the mechanical equipment. Timely inspection and maintenance can ensure the long-term stable operation of the equipment.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A floating offshore wind and wave energy integrated power generation device, comprising: Floating columns (1), wherein multiple floating columns are provided, characterized in that: Wave power generation device (2), the wave power generation device (2) is set between two floating columns (1), the two ends of the wave power generation device (2) are respectively set on the surface of the floating columns (1), the wave power generation device (2) includes a wave power generation platform (201) set on the surface of the floating columns (1), and multiple floating plates (202) are set around the wave power generation platform (201). A wind power generation device (3) is set at the upper end of a floating column (1). The wind power generation device (3) is set in several groups. The wind power generation device (3) includes a fixed column (301) set at the upper end of the floating column (1). A wind turbine (303) is set at the top of the fixed column (301). A wind turbine blade (302) is set at the transmission end of the wind turbine (303). The surface of the fixed column (301) is provided with an equipment stabilizing device (4), and the bottom surface of the floating column (1) is provided with an equipment fixing device (5).

2. The floating offshore wind and wave energy integrated power generation device according to claim 1, characterized in that, The equipment stabilizing device (4) includes a triangular fixing frame (41), which is fixedly connected to multiple fixed columns (301). Multiple connecting ropes (411) are fixedly connected to the bottom surface of the triangular fixing frame (41), and a counterweight ball (42) is suspended at the other end of the connecting ropes (411).

3. A floating offshore wind and wave energy integrated power generation device according to claim 1, characterized in that, The equipment fixing device (5) includes a three-claw fixing frame (501), one end of which is fixedly connected to a plurality of floating columns (1), and an iron chain (502) is fixedly connected to the surface of the intersection of the other end of the three-claw fixing frame (501), and a fixing base (503) is fixedly connected to the other end of the iron chain (502).

4. A floating offshore wind and wave energy integrated power generation device according to claim 2, characterized in that, The surface of the wave energy power generation platform (201) is provided with a fixing block (434), and the surface of the counterweight ball (42) is fixedly connected with a spring (43), and the other end of the spring (43) is fixedly connected to the fixing block (434).

5. A floating offshore wind and wave energy integrated power generation device according to claim 4, characterized in that, The surface of the counterweight ball (42) and the fixing block (434) is fixedly connected to the ball head base (433). The surface of the counterweight ball (42) is provided with a plurality of damping telescopic rods (431). The two ends of the damping telescopic rods (431) are provided with rotating ball heads (432), and the rotating ball heads (432) are connected to the ball head base (433).

6. A floating offshore wind and wave energy integrated power generation device according to claim 2, characterized in that, A water pump (44) is provided on the surface of the counterweight ball (42), and the water pump (44) is fixedly connected to and communicates with the counterweight ball (42). The water pump (44) is located at the water inlet end of the counterweight ball (42), and the water inlet end of the water pump (44) is fixedly connected to and communicates with a suction pipe (441).

7. A floating offshore wind and wave energy integrated power generation device according to claim 6, characterized in that, The surface of the counterweight ball (42) is fixedly connected to and connected to a drain pipe (45). The drain pipe (45) is located at the water outlet end of the counterweight ball (42), and a control water valve (451) is provided on the surface of the drain pipe (45).

8. A floating offshore wind and wave energy integrated power generation device according to claim 3, characterized in that, The surface of the fixed base (503) is provided with a plurality of barbs (504), and the barbs (504) are all distributed around the bottom of the fixed base (503).

9. A floating offshore wind and wave energy integrated power generation device according to claim 1, characterized in that, A support rod (304) is fixedly connected to the lower surface of the fixed column (301), and the support rod (304) is fixedly connected to the wave energy power generation platform (201).

10. A floating offshore wind and wave energy integrated power generation device according to claim 6, characterized in that, The surface of the water suction pipe (441) is provided with a counterweight (442).

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