Wave energy power generation device

Abstract

The invention relates to the technical field of power generation devices, and discloses a wave power generation device which comprises a first power generation module, a second power generation module and a power generation module, the first power generation module is arranged on a base and comprises a first air chamber, a first air turbine and a first power generator, a first opening is formed in the lower side of the first air chamber, a second opening is formed in the top of the first air chamber, and the first air turbine is arranged in the second opening; the second power generation module is arranged on the base and comprises a second air chamber, a second air turbine and a second power generator, a third opening is formed in the lower side of the second air chamber, a fourth opening is formed in the top of the second air chamber, and the second air turbine is arranged in the fourth opening; under the action of waves, air pressure difference between the two air chambers drives air to flow out of the high-pressure side air chamber and sequentially flow through the air turbine at the top of the high-pressure side air chamber, the communicating pipe and the air turbine at the top of the low-pressure side air chamber; the same air flow can continuously push the two air turbines to rotate to do work and drive the respective generators to generate power, so that the overall conversion efficiency of wave energy is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of power generation equipment technology, and in particular to a wave energy power generation device. Background Technology

[0002] Currently, wave energy is a widely distributed renewable energy source in the ocean, offering advantages such as cleanliness and renewability. Wave energy generation technology converts ocean wave energy into electrical energy. To further improve energy conversion efficiency, various improvement schemes have emerged in existing technologies. For example, CN118532291A discloses a high-efficiency wave energy generation device based on a dual air turbine. This device features an airflow channel with two branches at the top of a single air chamber, and utilizes a one-way valve to guide the airflow. This allows the air turbines in the high-pressure and low-pressure zones of the air chamber to drive the generator during the compression and dilution phases, respectively. This scheme optimizes energy capture in both the forward and reverse airflow directions within a single air chamber.

[0003] However, in such improvements based on a single air chamber, the physical processes of energy capture and utilization are essentially still confined within that single cavity. Whether it's the air discharged during chamber compression or the air drawn in during chamber dilution, the starting and ending points of its flow path are both in the atmospheric environment. The energy contained in a stream of air is directly discharged or replenished from the atmosphere after one turbine operation, meaning the energy is utilized only once, which limits further improvements in power generation efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that in the existing high-efficiency wave energy power generation device based on dual air turbine, whether it is the air discharged during the compression of the air chamber or the air drawn in during the expansion of the air chamber, the starting point and the ending point of its flow path are both the atmospheric environment. The energy contained in a stream of air is directly discharged or replenished from the atmosphere after the turbine does work once. The energy is only used once, which restricts the further improvement of power generation efficiency.

[0005] To address the aforementioned technical problems, the present invention provides a wave energy generation device, comprising: Base; The first power generation module is mounted on the base and includes a first air chamber, a first air turbine, and a first generator. The lower side of the first air chamber has a first opening, which is located below the water surface. The top of the first air chamber has a second opening, and the first air turbine is disposed in the second opening. The rotating shaft of the first air turbine is connected to the rotating shaft of the first generator. The second power generation module is mounted on the base and includes a second air chamber, a second air turbine, and a second generator. The lower side of the second air chamber has a third opening, which is located below the water surface. The top of the second air chamber has a fourth opening, and the second air turbine is located in the fourth opening. The shaft of the second air turbine is connected to the shaft of the second generator. The connecting tube has one end connected to the second opening and the other end connected to the fourth opening.

[0006] Preferably, the wave energy generation device further includes: A spacing adjustment module is mounted on the base. The spacing adjustment module is used to adjust the horizontal spacing between the first air chamber and the second air chamber so that the spacing between the first air chamber and the second air chamber is equal to half of the wave wavelength of the current time period. The connecting pipe has a retractable corrugated pipe in the middle.

[0007] Preferably, the spacing adjustment module includes a first adjustment arm, a second adjustment arm, a first motor, and a second motor; One end of the first adjusting arm is connected to the first air chamber, and the other end of the first adjusting arm is provided with a first rack; One end of the second adjusting arm is connected to the second air chamber, and the other end of the second adjusting arm is provided with a second rack; The first motor output shaft is provided with a first gear that meshes with the first rack; The output shaft of the second motor is provided with a second gear that meshes with the second rack. Both the first and second motors are mounted on the base.

[0008] Preferably, the wave energy generation device further includes: A horizontal guide module is used to provide horizontal guidance for the first and second air chambers. A horizontal guide structure is mounted on the base.

[0009] Preferably, the horizontal guide module includes a guide beam, a first guide rail, and a second guide rail; The first guide rail is fixed to the top of the first air chamber, and the second guide rail is fixed to the top of the second air chamber. The guide beam extends horizontally, with one end of the guide beam slidably disposed in the first guide rail and the other end of the guide beam slidably disposed in the second guide rail. Both ends of the guide beam are equipped with limiting parts; The guide beam is fixed to the base.

[0010] Preferably, the wave energy generation device further includes: Height adjustment module, used to adjust the height of the wave energy power generation device.

[0011] Preferably, the height adjustment module includes a first telescopic cylinder; The first telescopic cylinder is mounted on the base, and a support platform is provided on the top of the first telescopic cylinder. The first motor and the second motor are both mounted on the support platform. The guide beam is fixed to the top of the support platform.

[0012] Preferably, two guide beams are horizontally spaced apart, and a first support rod is provided at each of the four corners of the support platform; The top of the first support rod is fixedly connected to the guide beam.

[0013] Preferably, a horizontal strut is provided between two adjacent guide beams, and each horizontal strut is provided with a support plate for supporting the connecting pipe.

[0014] Preferably, both the first air turbine and the second air turbine include a rotating part; Each rotating part has multiple sets of flow guiding components spaced circumferentially on its outer side wall. Each set of flow guiding components includes a first flow guiding blade, a second flow guiding blade, and a drive blade. The first and second guide vanes are spaced apart vertically and arranged at an acute angle. The drive vane is located at the top of the acute angle and has an inner groove on the side of the drive vane facing the first and second guide vanes.

[0015] Compared with the prior art, the wave energy power generation device of this invention has the following advantages: The wave energy power generation device of the preferred embodiment of the present invention is provided with a first power generation module and a second power generation module. The bottom of the first and second air chambers of the two power generation modules has openings, and the openings are both located below the water surface, so that the two air chambers form a sealed space. The two air chambers are connected by a connecting pipe to construct a closed internal air circulation loop. When encountering waves, the waves cause a height difference between the water levels of the two air chambers. Due to the undulation of the wave surface, the water level difference between the two air chambers will cause the air in one air chamber to be compressed by the rising water column to form a high pressure, while the other air chamber will form a low pressure due to the falling water column. The air pressure difference between the two air chambers drives the air to flow out from the high-pressure side air chamber, and flows sequentially through the air turbine at its top, the connecting pipe, and the air turbine at the top of the low-pressure side air chamber to complete one cycle. In this process, the same airflow can continuously drive the two air turbines to rotate and do work, driving their respective generators to generate electricity, realizing the cascade and reuse of airflow energy, fundamentally overcoming the defect of existing single-chamber devices that can only use energy once, and significantly improving the overall conversion efficiency of wave energy. Attached Figure Description

[0016] Figure 1 This is a first-view structural schematic diagram of the wave energy power generation device provided in an embodiment of the present invention; Figure 2 This is a second-view structural schematic diagram of the wave energy power generation device provided in an embodiment of the present invention; Figure 3 This is a front view of the wave energy generation device provided in an embodiment of the present invention; Figure 4 This is a top view of the wave energy power generation device provided in an embodiment of the present invention; Figure 5 This is a bottom view of the wave energy generation device provided in an embodiment of the present invention; Figure 6 This is a first-view structural schematic diagram of the first air chamber of the wave energy power generation device provided in an embodiment of the present invention; Figure 7 This is a second-view structural schematic diagram of the first air chamber of the wave energy power generation device provided in an embodiment of the present invention; Figure 8 This is a side view of the first air chamber of the wave energy power generation device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the second air chamber of the wave energy power generation device provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the guide beam and support plate of the wave energy power generation device provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the first air turbine of the wave energy power generation device provided in an embodiment of the present invention; Figure 12 This is a front view of the first air turbine of the wave energy power generation device provided in an embodiment of the present invention; Figure 13 yes Figure 12 Sectional view along axis AA; Figure 14 This is a schematic diagram of the structure of a single set of flow guiding components in the first air turbine of the wave energy power generation device provided in the embodiment of the present invention.

[0017] 1. First air chamber; 101. First opening; 102. Second opening; 2. First air turbine; 3. First sleeve; 4. Second air chamber; 401. Third opening; 402. Fourth opening; 5. Second air turbine; 6. Second sleeve; 7. Connecting pipe; 701. Bellows; 8. First adjusting arm; 9. Second adjusting arm; 10. First motor; 11. Second motor; 12. First gear; 13. Second gear; 14. Guide 151. First guide rail; 152. Second guide rail; 16. Limiting part; 17. Base; 18. First telescopic cylinder; 19. Support platform; 20. First support rod; 21. Horizontal support rod; 22. Support plate; 23. Second support rod; 24. First protrusion; 25. Second protrusion; 26. Rotating part; 27. Drive blade; 271. Inner groove; 281. First guide vane; 282. Second guide vane; 29. ​​Outer ring. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 this invention.

[0020] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figures 1 to 13 As shown, a preferred embodiment of the wave energy generation device of the present invention includes: Base 17; The first power generation module is mounted on the base 17 and includes a first air chamber 1, a first air turbine 2 and a first generator. The lower side of the first air chamber 1 is provided with a first opening 101, which is located below the water surface. The top of the first air chamber 1 is provided with a second opening 102. The first air turbine 2 is disposed in the second opening 102, and the shaft of the first air turbine 2 is connected to the shaft of the first generator. The second power generation module is mounted on the base 17 and includes a second air chamber 4, a second air turbine 5 and a second generator. The lower side of the second air chamber 4 is provided with a third opening 401, which is located below the water surface. The top of the second air chamber 4 is provided with a fourth opening 402. The second air turbine 5 is located in the fourth opening 402 and the shaft of the second air turbine 5 is connected to the shaft of the second generator. The connecting pipe 7 has one end connected to the second opening 102 and the other end connected to the fourth opening 402.

[0023] The wave energy power generation device of the preferred embodiment of the present invention is provided with a first power generation module and a second power generation module. The bottom of the first air chamber 1 and the second air chamber 4 of the two power generation modules have openings, and the openings are both located below the water surface, so that the two air chambers form a sealed space. The two air chambers are connected by a connecting pipe 7, which constructs a closed internal air circulation loop. When encountering waves, the waves cause a height difference in the water level between the two air chambers. Due to the undulation of the wave surface, the water level difference between the two air chambers will cause the air in one air chamber to be compressed by the rising water column to form a high pressure, while the other air chamber will form a low pressure due to the falling water column. The air pressure difference between the two air chambers drives the air to flow out from the high-pressure side air chamber, and flows sequentially through the air turbine at its top, the connecting pipe 7, and the air turbine at the top of the low-pressure side air chamber, completing one cycle flow. In this process, the same airflow can continuously drive the two air turbines to rotate and do work, driving their respective generators to generate electricity, realizing the cascade and reuse of airflow energy, fundamentally overcoming the defect of existing single-chamber devices that can only use energy once, and significantly improving the overall conversion efficiency of wave energy.

[0024] Specifically, wave energy generation devices also include: A spacing adjustment module is installed on the base 17. The spacing adjustment module is used to adjust the horizontal spacing between the first air chamber 1 and the second air chamber 4 so that the spacing between the first air chamber 1 and the second air chamber 4 is equal to half of the wave wavelength of the current time period. The middle part of the connecting pipe 7 is provided with a retractable corrugated pipe 701.

[0025] By setting a spacing adjustment module and dynamically adjusting the horizontal spacing between the first air chamber 1 and the second air chamber 4 to half the wavelength according to the current wave wavelength, when one air chamber is at the wave crest, the other air chamber is at the wave trough. This ensures that the water column movement in the two air chambers is always in the optimal working state with opposite phases. Under changing wave conditions, it continuously generates and maximizes the pressure difference that drives the air to flow back and forth in the closed loop. The base 17 provides a stable foundation for the installation and operation of the entire spacing adjustment module, ensuring the accuracy and reliability of the adjustment process. At the same time, the retractable corrugated pipe 701 set in the middle of the connecting pipe 7 can flexibly compensate for the changes in pipe length caused by changes in the air chamber spacing, and always maintain the connectivity and sealing of the internal air passage.

[0026] Specifically, the spacing adjustment module includes a first adjustment arm 8, a second adjustment arm 9, a first motor 10, and a second motor 11; One end of the first adjusting arm 8 is connected to the first air chamber 1, and the other end of the first adjusting arm 8 is provided with a first rack. One end of the second adjusting arm 9 is connected to the second air chamber 4, and the other end of the second adjusting arm 9 is provided with a second rack; The first motor 10 has a first gear 12 on its output shaft that meshes with the first rack. The output shaft of the second motor 11 is provided with a second gear 13 that meshes with the second rack. The first motor 10 and the second motor 11 are both mounted on the base 17.

[0027] When the first motor 10 and the second motor 11 rotate, they drive the first adjusting arm 8 and the second adjusting arm 9 to move linearly through a gear and rack structure. The first adjusting arm 8 and the second adjusting arm 9 are rigidly connected to the first air chamber 1 and the second air chamber 4, respectively, thereby converting the rotational motion of the motor into the horizontal movement of the two air chambers in opposite directions or away from each other. This allows the spacing between the two air chambers to be adjusted and locked at the optimal position of the current half wavelength of the wave according to the changes in wave conditions. At the same time, the first motor 10 and the second motor 11 are both fixed on the same base 17, providing a stable installation foundation for the spacing adjustment module and ensuring the smoothness of the spacing adjustment process.

[0028] Specifically, the bottom of the first motor 10 and the second motor 11 are provided with mounting bases, and the mounting bases are provided with multiple mounting holes. The support platform 19 is provided with threaded holes corresponding to the positions of the mounting holes, so that the first motor 10 and the second motor 11 can be fixed on the support platform 19 by threads.

[0029] Specifically, wave energy generation devices also include: A horizontal guide module is used to provide horizontal guidance for the first air chamber 1 and the second air chamber 4. A horizontal guide structure is installed on the base 17.

[0030] The horizontal guide module provides constraints and guidance for the horizontal movement of the first air chamber 1 and the second air chamber 4, ensuring that the first air chamber 1 and the second air chamber 4 move smoothly horizontally along a preset straight trajectory during the spacing adjustment process.

[0031] Specifically, the horizontal guide module includes a guide beam 14, a first guide rail 151, and a second guide rail 152. The first guide rail 151 is fixed to the top of the first air chamber 1, and the second guide rail 152 is fixed to the top of the second air chamber 4; The guide beam 14 extends horizontally, with one end of the guide beam 14 slidably disposed within the first guide rail 151 and the other end of the guide beam 14 slidably disposed within the second guide rail 152. Both ends of the guide beam 14 are provided with limiting parts 16; The guide beam 14 is fixed on the base 17.

[0032] The two ends of the guide beam 14 are respectively inserted into the guide rails at the top of the first air chamber 1 and the second air chamber 4. The guide beam 14 not only forms the guiding structure of the first air chamber 1 and the second air chamber 4, but also, together with the first adjusting arm 8 and the second adjusting arm 9, forms the load-bearing structure of the first air chamber 1 and the second air chamber 4. This avoids the first air chamber 1 and the second air chamber 4 being supported solely by the cantilevered first adjusting arm 8 and the second adjusting arm 9. The limiting part 16 provided at the end of the guide beam 14 constitutes a physical limit, reliably preventing the air chamber from slipping off the guide beam 14 under extreme working conditions or at the end of the adjustment stroke, thus enhancing the safety of the entire device.

[0033] Specifically, the limiting part 16 is a limiting plate, and two limiting plates are welded to both ends of the guide beam 14 respectively. The cross-sectional dimensions of the limiting plate are larger than the cross-sectional dimensions of the guide rail, thereby preventing the guide chain from coming out of the guide rail.

[0034] Specifically, the wave energy power generation device also includes a height adjustment module, which is used to adjust the height of the wave energy power generation device. This allows the vertical height of the first air chamber 1 and the second air chamber 4 to be adjusted as a whole according to the tidal changes, wave conditions, or draft of the first air chamber 1 and the second air chamber 4 in the actual sea area. This ensures that the lower openings of the two air chambers are always maintained at the optimal submersion depth, guaranteeing the efficient capture of wave dynamics by the air chambers and preventing the air chamber openings from being exposed to the air and losing their function due to low water levels, or the water column movement inside the air chambers from being obstructed due to high water levels.

[0035] Specifically, the height adjustment module includes a first telescopic cylinder 18; The first telescopic cylinder 18 is mounted on the base 17, and a support platform 19 is provided on the top of the first telescopic cylinder 18. The first motor 10 and the second motor 11 are both mounted on the support platform 19. The guide beam 14 is fixed to the top of the support platform 19.

[0036] Specifically, two guide beams 14 are horizontally spaced apart, and the four corners of the support platform 19 are provided with first support rods 20, the top of the first support rods 20 being fixedly connected to the guide beams 14; the two guide beams 14 are spaced apart, and together with the two guide rails provided on the top of the first air chamber 1 and the second air chamber 4, the load-bearing stability of the air chambers is further increased.

[0037] Specifically, a horizontal strut 21 is provided between two adjacent guide beams 14, and a support plate 22 for supporting the connecting pipe 7 is provided on each horizontal strut 21.

[0038] The horizontal strut 21 connects the two spaced guide beams 14 laterally into a more rigid frame with greater overall integrity, which enhances the stability and deformation resistance of the support structure. The support plate 22 set on the horizontal strut 21 provides a stable and reliable intermediate support for the connecting pipe 7, avoiding deformation under its own weight due to the excessive span of the connecting pipe 7, and ensuring the smooth flow of air and the integrity of the seal inside the connecting pipe 7.

[0039] Specifically, a second support rod 23 is fixed on each horizontal support rod 21, and a support plate 22 is fixed on the top of the second support rod 23.

[0040] Specifically, both the first air turbine 2 and the second air turbine 5 include a rotating part 26; Each rotating part 26 has multiple sets of flow guiding components spaced circumferentially on its outer side wall. Each set of flow guiding components includes a first flow guiding blade 281, a second flow guiding blade 282, and a drive blade 27. The first guide vane 281 and the second guide vane 282 are arranged vertically at an acute angle, and the driving vane 27 is located at the top of the acute angle. The driving vane 27 has an inner groove 271 on the side facing the first guide vane 281 and the second guide vane 282.

[0041] like Figure 13 As shown, taking a single set of guide components in the first air turbine 2 as an example, when the gas flows from the top to the bottom, the first guide vane 281 is inclined toward the inner groove 271 of the drive vane 27, so that the airflow is inclined toward the inner groove 271. Under the action of the kinetic energy of the airflow, the drive vane 27 is pushed and rotated, thereby driving the rotating part 26 to rotate. The rotating part 26 is connected to the shaft of the first generator, so that the airflow drives the first generator to generate electricity. When the gas flows from the bottom to the top, the second guide vane 282 is also inclined toward the inner groove 271 of the drive vane 27. The inclined airflow drives the drive vane 27 to rotate in the same direction, driving the first generator to generate electricity. Each set of guide components in the first air turbine 2 and the second air turbine 5 follows the above principle, so the first air turbine 2 and the second air turbine 5 both form a bidirectional air turbine structure. No matter the direction of the airflow, it can rotate in a single direction to drive the generator to rotate and generate electricity.

[0042] Specifically, the first air turbine 2 and the second air turbine 5 also include an outer ring 29. The inner wall of the outer ring 29 is fixedly connected to each of the first guide vanes 281, each of the second guide vanes 282 and each drive vane 27. The outer ring 29 forms a physical protection structure for each group of guide components to prevent damage to each group of guide components during rotation.

[0043] Specifically, the outer ring 29, each set of guide components and the rotating part 26 are integrally formed.

[0044] Specifically, the outer wall of the first air chamber 1 is provided with a first protrusion 24, and the outer wall of the second air chamber 4 is provided with a second protrusion 25. Both the first protrusion 24 and the second protrusion 25 are provided with mounting grooves. The ends of the first adjusting arm 8 and the second adjusting arm 9 are respectively welded and fixed in the mounting grooves. The first protrusion 24 and the second protrusion 25 respectively form a local wall thickness expansion area on the outer wall of the first air chamber 1 and the second air chamber 4. The mounting groove is provided in the local wall thickness expansion area to enhance the structural strength and rigidity of the connection point between the adjusting arm and the air chamber.

[0045] Specifically, the wave energy generation device also includes a controller, which is electrically connected to the first motor 10, the second motor 11 and the first telescopic cylinder 18 respectively. The staff monitors wave data in real time and sends instructions to the controller. After receiving the instructions, the controller synchronously sends electrical signals to the first motor 10 and the second motor 11. After receiving the corresponding electrical signals, the first motor 10 and the second motor 11 start and adjust the distance between the first air chamber 1 and the second air chamber 4.

[0046] In other embodiments, the horizontal guide module includes a horizontally extending slide rail, which is fixed to the top of the second bracket and has its opening facing downward. A first slider is provided on the top of the first air chamber 1, and a second slider is provided on the top of the second air chamber 4. Both the first slider and the second slider are slidably disposed within the slide rail.

[0047] In other embodiments, the spacing adjustment module includes a second telescopic cylinder and a third telescopic cylinder. The output shaft of the second telescopic cylinder is connected to the outer wall of the first air chamber 1, and the output shaft of the third telescopic cylinder is connected to the outer wall of the second air chamber 4. Both the second and third telescopic cylinders are fixed on the support platform 19.

[0048] In other embodiments, the height adjustment module includes a scissor lift platform with a support platform 19 on top.

[0049] The working process of this invention is as follows: The base 17 of the wave energy generation device provided by this invention is installed in a preset position. Workers monitor wave data in real time, obtain the wave wavelength for the current time period, and then send a command to the controller. Upon receiving the command, the controller synchronously sends electrical signals to the first motor 10 and the second motor 11. The first motor 10 and the second motor 11 start synchronously upon receiving the corresponding electrical signals. Through gear-driven racks, they drive the first adjusting arm 8 and the second adjusting arm 9, causing the first air chamber 1 and the second air chamber 4 to move towards or away from each other along the guide beam 14 until the distance between them is adjusted to half of the current wave wavelength. Simultaneously, the controller drives the first telescopic cylinder 18 to adjust the height of the support platform 19, ensuring that the lower openings of the first air chamber 1 and the second air chamber 4 are at the optimal submersion depth.

[0050] When a wave passes, because the distance between the two air chambers is half a wavelength, the water column inside always moves in opposite phases. When the first air chamber 1 is at the crest of the wave, the water column inside rises, compressing the air in the upper part of the air chamber. At the same time, the second air chamber 4 is at the trough of the wave, and the water column inside descends, diluting the air in the upper part of the air chamber. This phase difference creates a stable pressure difference between the first air chamber 1 and the second air chamber 4, driving air to flow from the high-pressure side of the first air chamber 1 to the low-pressure side of the second air chamber 4. The air first flows through the first air turbine 2 at the top of the first air chamber 1, driving the first air turbine 2 to rotate, and then flows through the connecting pipe 7 to the second air chamber 4, driving the second air turbine 5 to rotate, entering the second air chamber 4 to replenish the diluted air. During this process, the same airflow continuously drives the two air turbines to rotate, driving the first generator and the second generator to generate electricity respectively. When the first air chamber 1 is at the trough of the wave and the second air chamber 4 is at the crest of the wave, the air movement process is opposite, but it will still drive the first generator and the second generator to generate electricity.

[0051] In summary, the wave energy power generation device of the preferred embodiment of the present invention is provided with a first power generation module and a second power generation module. The bottom of the first and second air chambers of the two power generation modules has openings, and the openings are both located below the water surface, so that the two air chambers form a closed space. The two air chambers are connected by a connecting pipe, which constructs a closed internal air circulation loop. When encountering waves, the waves cause a height difference between the water levels of the two air chambers. Due to the undulation of the wave surface, the water level difference between the two air chambers will cause the air in one air chamber to be compressed by the rising water column to form a high pressure, while the other air chamber will form a low pressure due to the falling water column. The air pressure difference between the two air chambers drives the air to flow out from the high-pressure side air chamber, and flows sequentially through the air turbine at its top, the connecting pipe, and the air turbine at the top of the low-pressure side air chamber, completing one cycle. In this process, the same airflow can continuously drive the two air turbines to rotate and do work, driving their respective generators to generate electricity, realizing the cascade and reuse of airflow energy, fundamentally overcoming the defect of existing single-chamber devices that can only use energy once, and significantly improving the overall conversion efficiency of wave energy.

[0052] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A wave energy generation device, characterized in that, include: Base (17); The first power generation module is mounted on the base (17) and includes a first air chamber (1), a first air turbine (2) and a first generator. The lower side of the first air chamber (1) is provided with a first opening (101), which is located below the water surface. The top of the first air chamber (1) is provided with a second opening (102), and the first air turbine (2) is disposed in the second opening (102). The rotating shaft of the first air turbine (2) is connected to the rotating shaft of the first generator. The second power generation module is mounted on the base (17) and includes a second air chamber (4), a second air turbine (5) and a second generator. The second air chamber (4) has a third opening (401) on its lower side, which is located below the water surface. The second air chamber (4) has a fourth opening (402) on its top. The second air turbine (5) is located in the fourth opening (402), and the shaft of the second air turbine (5) is connected to the shaft of the second generator. A connecting pipe (7) is provided, one end of which is connected to the second opening (102), and the other end of which is connected to the fourth opening (402).

2. The wave energy generation device according to claim 1, characterized in that, The wave energy generation device also includes: A spacing adjustment module is provided on the base (17). The spacing adjustment module is used to adjust the horizontal spacing between the first air chamber (1) and the second air chamber (4) so ​​that the spacing between the first air chamber (1) and the second air chamber (4) is equal to half of the wave wavelength of the current time period. The middle part of the connecting pipe (7) is provided with a retractable corrugated pipe (701).

3. A wave energy generation device according to claim 2, characterized in that, The spacing adjustment module includes a first adjustment arm (8), a second adjustment arm (9), a first motor (10), and a second motor (11). One end of the first adjusting arm (8) is connected to the first air chamber (1), and the other end of the first adjusting arm (8) is provided with a first rack; One end of the second adjusting arm (9) is connected to the second air chamber (4), and the other end of the second adjusting arm (9) is provided with a second rack; The first motor (10) has a first gear (12) on its output shaft that meshes with the first rack. The output shaft of the second motor (11) is provided with a second gear (13) that meshes with the second rack. Both the first motor (10) and the second motor (11) are mounted on the base (17).

4. A wave energy generation device according to claim 3, characterized in that, The wave energy generation device also includes: A horizontal guiding module, which provides horizontal guidance for the first air chamber (1) and the second air chamber (4); The horizontal guide structure is disposed on the base (17).

5. A wave energy generation device according to claim 4, characterized in that, The horizontal guide module includes a guide beam (14), a first guide rail (151), and a second guide rail (152). The first guide rail (151) is fixed to the top of the first air chamber (1), and the second guide rail (152) is fixed to the top of the second air chamber (4); The guide beam (14) extends horizontally, one end of the guide beam (14) is slidably disposed in the first guide rail (151), and the other end of the guide beam (14) is slidably disposed in the second guide rail (152); Both ends of the guide beam (14) are provided with limiting parts (16). The guide beam (14) is fixed on the base (17).

6. A wave energy generation device according to claim 5, characterized in that, The wave energy generation device also includes: A height adjustment module is provided for adjusting the height of the wave energy generation device.

7. A wave energy generation device according to claim 6, characterized in that, The height adjustment module includes a first telescopic cylinder (18); The first telescopic cylinder (18) is mounted on the base (17), and a support platform (19) is provided on the top of the first telescopic cylinder (18). The first motor (10) and the second motor (11) are both mounted on the support platform (19). The guide beam (14) is fixed to the top of the support platform (19).

8. A wave energy generation device according to claim 7, characterized in that, Two guide beams (14) are horizontally spaced apart, and the four corners of the support platform (19) are provided with first support rods (20). The top of the first support rod (20) is fixedly connected to the guide beam (14).

9. A wave energy generation device according to claim 8, characterized in that, A horizontal strut (21) is provided between two adjacent guide beams (14), and a support plate (22) for supporting the connecting pipe (7) is provided on each horizontal strut (21).

10. A wave energy generation device according to claim 1, characterized in that, Both the first air turbine (2) and the second air turbine (5) include a rotating part (26); Each of the rotating parts (26) has multiple sets of flow guiding components spaced circumferentially on its outer side wall. Each set of flow guiding components includes a first flow guiding blade (281), a second flow guiding blade (282), and a drive blade (27). The first guide vane (281) and the second guide vane (282) are arranged vertically at an acute angle, and the driving vane (27) is located at the top of the acute angle. The driving vane (27) has an inner groove (271) on the side facing the first guide vane (281) and the second guide vane (282).

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