A wave power generation device integrated with a seawall

Abstract

This invention discloses a wave power generation device integrated with a seawall, comprising a buoy, cable, fixed pulley, machine room, motion converter, generator, spring, cable, integrated control cabinet, and wave guide plate. The buoy floats on the sea surface under the combined action of its own weight, seawater buoyancy, cable tension, and the force from the upstream slope of the seawall, rising and falling with the sea surface. Through a gear transmission mechanism within the motion converter, the generator rotor rotates forward, thereby fixing the coil and cutting magnetic field lines to generate current. This device fully utilizes the characteristic of the sea surface rising and falling with tides or waves, achieving the function of collecting and utilizing tidal and wave energy resources without affecting the seawall's original functions.

Description

Technical Field

[0001] This invention relates to power generation devices, and more particularly to a wave power generation device integrated with a seawall. Background Technology

[0002] The ocean covers most of the Earth's surface and contains boundless energy; developing and utilizing ocean energy has become a popular research direction in recent years. Under the backdrop of my country's "dual carbon" goals, its technological investment in ocean energy development has been increasing year by year. However, due to the unfavorable characteristics of ocean energy, such as low density, wide distribution, and strong corrosiveness of seawater, my country's ocean energy development is still in the exploratory and initial stages. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to invent a wave power generation device that is combined with a seawall to convert nearshore tidal energy and wave energy into electrical energy.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a wave power generation device integrated with a seawall, comprising a buoy, a cable, a fixed pulley, a machine room, a motion converter, a generator, a spring, a cable, an integrated control cabinet, and wave guides. The machine room is located on the top of the seawall, and the fixed pulley is fixed to the top of the machine room. The motion converter, generator, and spring are installed inside the machine room. The buoy and wave guides are located on the water-facing side of the seawall. The buoy is a hollow sphere, and the two wave guides are laid along the slope of the water-facing side of the seawall. The buoy is located between the two wave guides and is connected to the cable, floating up and down with the sea surface in the space between the two wave guides. The upstream end of the cable is connected to the buoy, and the downstream end is connected to the motion converter after passing through the fixed pulley. The end of the motion converter is also connected to the spring, which is fixed to the foundation of the machine room. The generator is connected to the integrated control cabinet.

[0005] The motion converter includes a rack, a pair of gear sets, and a main shaft. A cable is connected to the top of the rack, and a spring is connected to the bottom. The rack can move up and down. The gear set consists of a transmission gear, a bearing, a rotating shaft, and an output gear. The transmission gear meshes with the rack. One end of the rotating shaft is connected to the transmission gear through a bearing, and the other end is connected to the output gear. The bearing is a one-way bearing. The two output gears on the pair of gear sets mesh with each other. One end of the main shaft is connected to one of the output gears, and the other end is connected to the rotating shaft inside the generator.

[0006] The range of the rack's up-and-down movement is determined based on the highest and lowest sea levels.

[0007] The bearing end is fixed to the wall or foundation of the machine room.

[0008] The integrated control cabinet contains a rectifier, capacitor, and voltage regulator, which convert the electrical energy generated by the generator into stable output electrical energy through rectification, filtering, and voltage regulation processes.

[0009] The weight of the buoy is determined and adjusted based on the design spring tension, the design slope of the upstream seawall, the pulley efficiency, and the seawater density. The submersion rate of the buoy varies between 30% and 80%.

[0010] The fixed pulley is fixed to the top of the machine room, and the cable passes through the machine room window and through the fixed pulley, so that its axis direction changes from the upstream slope of the seawall to the vertical direction.

[0011] The cable is connected to the integrated control cabinet through a cable trench or buried pipe, transmitting the current generated by the generator to the integrated control cabinet.

[0012] The wave guides are installed on the upstream side of the seawall, on both sides of the buoy. The space inside the two wave guides is narrower at the top and wider at the bottom. The wave guides guide seawater into the space inside the wave guides and prevents the buoy from moving laterally.

[0013] The beneficial effects of this invention are: it can make full use of the characteristics of the sea surface rising and falling with the tides or waves, and realize the function of collecting and utilizing tidal energy and wave energy resources without affecting the seawall's original functions. It has a simple structure, is easy to install and maintain, and its structure can be adjusted according to different seawall shapes. It is suitable for replication and installation along the seawall and has strong adaptability to the characteristics of low density and wide distribution of ocean tidal energy and wave energy. Attached Figure Description

[0014] Figure 1 This is a typical cross-sectional view of a wave power generation device combined with ocean waves according to an embodiment of the present invention.

[0015] Figure 2 This is a detailed diagram of the motion converter. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "No. 1" and "No. 2" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] like Figure 1 , 2 As shown, the wave power generation device of the present invention, which is integrated with a seawall, includes a buoy 1, a cable 2, a fixed pulley 3, a machine room 5, a motion converter 6, a generator 7, a spring 4, a cable 8, an integrated control cabinet 9, and a wave guide plate 10. The machine room 5 is located on the top of the seawall 11, and the fixed pulley 3 is fixed to the top of the machine room. The motion converter 6, the generator 7, and the spring 4 are installed inside the machine room. The buoy 1 and the wave guide plate 10 are located on the water-facing side of the seawall 11. The buoy 1 is a hollow sphere. The two wave guide plates 10 are laid along the slope direction of the water-facing side of the seawall 11. The buoy 1 is located between the two wave guide plates 10. The buoy 1 is connected to the cable 2 and floats up and down with the sea surface in the space between the two wave guide plates 10. The upstream end of the cable 2 is connected to the buoy 1, and the downstream end is connected to the motion converter 6 after passing through the fixed pulley 3. The end of the motion converter 6 is also connected to the spring 4. The spring 4 is fixed to the foundation of the machine room 5. The generator 7 is connected to the integrated control cabinet 9.

[0020] The motion converter 6 includes a rack 12, a pair of gear sets, and a main shaft 21. The top of the rack 12 is connected to a cable 2, and the bottom is connected to a spring 4. The rack 12 can move up and down. The gear set consists of a transmission gear, a bearing, a rotating shaft, and an output gear. The transmission gear meshes with the rack. One end of the rotating shaft is connected to the transmission gear through a bearing, and the other end is connected to the output gear. The bearing is a one-way bearing. The two output gears on the pair of gear sets mesh with each other. One end of the main shaft is connected to one of the output gears, and the other end is connected to the rotating shaft inside the generator.

[0021] The range of vertical movement of the rack 12 is determined based on the highest and lowest sea levels. The bearing end is fixed to the wall or foundation of the machine room. The integrated control cabinet 9 contains a rectifier, capacitor, and voltage regulator, which converts the electrical energy generated by the generator 7 into stable output electrical energy through rectification, filtering, and voltage regulation. The weight of the buoy 1 is determined and adjusted based on the design spring tension, the upstream slope of the seawall, the pulley efficiency, and seawater density, and the buoy's submersion rate varies between 30% and 80%. The fixed pulley is fixed to the top of the machine room, and the cable passes through the machine room window and through the fixed pulley, changing its axial direction from the upstream slope of the seawall to a vertical direction. The cable is connected to the integrated control cabinet through a cable trench or buried pipe, transmitting the current generated by the generator to the integrated control cabinet. The wave guides are set on the upstream side of the seawall, on both sides of the buoy. The inner space of the two wave guides is narrower at the top and wider at the bottom. The wave guides guide seawater into the inner space of the wave guides and prevent the buoy from moving laterally.

[0022] Specifically, the wave power generation device combined with the seawall 11 has a float 1 and a wave guide plate 10 set on the water-facing side of the seawall 11. The float 1 is connected to the cable 2. Under the combined action of the waves, the upstream side of the seawall, and the cable 2 under its own weight, buoyancy, and cable tension, it floats up and down with the sea surface in the space between the wave guide plates 10. The upstream end of the cable 2 is connected to the float 1, and the downstream end is connected to the motion converter 6 after passing through the fixed pulley 3. The end of the motion converter 6 is connected to the spring 4, and the spring 4 is fixed to the foundation of the machine room 5. The motion converter 6 consists of a rack 12, a first transmission gear 13, a first bearing 14, a first rotating shaft 15, a first output gear 16, a second transmission gear 17, a second bearing 18, a second rotating shaft 19, a second output gear 20, and a main shaft 21. The upper end of the rack 12 is connected to a cable 2, and the lower end is connected to a spring 4, allowing it to move up and down under the action of the cable 2 and the spring 4. Both the second transmission gear 17 and the first transmission gear 13 mesh with the rack 13. One end of the second rotating shaft 19 is connected to the second transmission gear 17 via the second bearing 18, and the other end is connected to the second output gear 20. One end of the first rotating shaft 15 is connected to the first transmission gear 13 via the first bearing 14, and the other end is connected to the first output gear 16. The second output gear 20 meshes with the first output gear 16. One end of the main shaft 21 is connected to the second output gear 20, and the other end is connected to the rotating shaft inside the generator 7.

[0023] Bearing 18 (No. 2) and bearing 14 (No. 1) are both one-way bearings. Their function is to lock gear 12 and shaft 19 together when gear 12 and shaft 19 rotate in the same direction, and to allow gear 12 and shaft 19 to rotate independently when they rotate in opposite directions.

[0024] For example, when rack 12 moves downwards, it drives transmission gears 13 and 17 to rotate clockwise. Through bearing 14, transmission gear 13 drives shaft 15 to rotate clockwise, which in turn drives output gear 16 to rotate clockwise. Since output gear 20 meshes with output gear 16, it rotates counterclockwise, causing shaft 19 and main shaft 21 to rotate counterclockwise. Meanwhile, transmission gear 17 rotates clockwise. Shaft 19 and transmission gear 17 rotate in opposite directions through bearing 18. Similarly, when rack 12 moves upwards, it drives transmission gears 13 and 17 to rotate counterclockwise. Through bearing 18, transmission gear 17 drives shaft 19 to rotate counterclockwise, which in turn drives output gear 20 and main shaft 21 to rotate counterclockwise, ensuring that main shaft 21 always rotates in the same counterclockwise direction. Because output gear 20 meshes with output gear 16, output gear 16 rotates clockwise, which in turn drives shaft 15 to rotate clockwise. Meanwhile, transmission gear 13 rotates counterclockwise. Thus, shaft 15 and transmission gear 13 rotate in opposite directions through bearing 14.

[0025] Through the motion converter 6, the main shaft 21 continuously rotates in the same direction, thereby driving the shaft of the generator 7 to rotate in the same direction. The rotor on the shaft inside the generator 7 cuts magnetic field lines, generating current. The current generated by the generator 7 is connected to the external integrated control cabinet 9 through the cable 8. The integrated control cabinet 9 is equipped with rectifiers, capacitors, voltage regulators, etc., which convert the electrical energy generated by the generator 7 into stable output electrical energy through rectification, filtering, and voltage regulation processes.

[0026] The generator room is located on the top of the seawall and is a reinforced concrete or steel structure. Its dimensions can be adjusted according to the arrangement of the fixed pulleys, motion converter, and generator. The generator consists of a stator coil and a rotor permanent magnet. As the waves rise and fall, the rack moves up and down. Through the motion converter, the generator rotor permanent magnet is kept rotating in the same direction around the generator rotor bearing, thereby cutting the magnetic field and generating current.

[0027] This invention provides a novel method for converting tidal and wave energy into electrical energy through a wave power generation device integrated with a seawall. This method fully utilizes the characteristic of the sea surface rising and falling with tides or waves, achieving the collection and utilization of tidal and wave energy resources without affecting the seawall's original functions. Furthermore, the wave power generation device in this invention collects and converts tidal and wave energy throughout the entire process of the sea surface's rise and fall, significantly improving the energy collection and conversion efficiency of tidal and wave energy.

[0028] The wave power generation device proposed in this invention, which integrates with seawalls, is simple in structure, easy to install and maintain, and its structure can be adjusted according to different seawall shapes. It is suitable for replication and installation along seawalls and exhibits strong adaptability to the low density and wide distribution of ocean tidal and wave energy. This device is not limited to seawalls but is also applicable to river embankments, lake embankments, dam embankments, and other dike projects.

[0029] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The patent scope of the present invention should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in the present invention still fall within the patent scope of the present invention.

Claims

1. A wave power generation device integrated with a seawall, characterized in that, The system includes a buoy (1), a cable (2), a fixed pulley (3), a machine room (5), a motion converter (6), a generator (7), a spring (4), a cable (8), an integrated control cabinet (9), and a wave guide plate (10). The machine room (5) is located on the top of the seawall (11), and the fixed pulley (3) is fixed to the top of the machine room. The motion converter (6), generator (7), and spring (4) are installed inside the machine room. The buoy (1) and the wave guide plate (10) are located on the water-facing side of the seawall (11). The buoy (1) is a hollow sphere, and the two wave guide plates (10) are... 0) Lay along the water-facing slope of the seawall (11), with the buoy (1) located between two wave guides (10). The buoy (1) is connected to the cable (2) and floats up and down with the sea surface in the space between the two wave guides (10). The upstream end of the cable (2) is connected to the buoy (1), and the downstream end is connected to the motion converter (6) after passing through the fixed pulley (3). The end of the motion converter (6) is also connected to the spring (4). The spring (4) is fixed on the foundation of the machine room (5), and the generator (7) is connected to the integrated control cabinet (9). The motion converter (6) includes a rack (12), a pair of gear sets and a main shaft (21). The top of the rack (12) is connected to a cable (2) and the bottom is connected to a spring (4). The rack (12) can move up and down. The gear set consists of a transmission gear, a bearing, a rotating shaft and an output gear. The transmission gear meshes with the rack. One end of the rotating shaft is connected to the transmission gear through a bearing, and the other end is connected to the output gear. The bearing is a one-way bearing. The two output gears on the pair of gear sets mesh with each other. One end of the main shaft is connected to one of the output gears, and the other end is connected to the rotating shaft inside the generator. The range of vertical movement of the rack (12) is determined according to the highest and lowest sea levels. The bearing end is fixed to the machine room wall or foundation; The integrated control cabinet (9) is equipped with a rectifier, capacitor and voltage regulator, which convert the electrical energy generated by the generator (7) into stable output electrical energy through rectification, filtering and voltage regulation processes; The weight of the buoy (1) is determined and adjusted according to the design spring tension, the design slope of the upstream seawall, the pulley efficiency, and the seawater density factor. The submersion rate of the buoy varies between 30% and 80%. The fixed pulley is fixed to the top of the machine room, and the cable passes through the machine room window and through the fixed pulley, so that its axis direction changes from the upstream slope of the seawall to the vertical direction. The cable is connected to the integrated control cabinet through a cable trench or buried pipe, transmitting the current generated by the generator to the integrated control cabinet; The wave guides are installed on the upstream side of the seawall, on both sides of the buoy. The inner space of the two wave guides is narrower at the top and wider at the bottom. The wave guides guide seawater into the inner space of the wave guides and prevents the buoy from moving laterally.

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