Wave energy power generation device

Abstract

The present application relates to a wave power generation device, including a floating platform, a plurality of wave power generation units and a turbine unit; the plurality of wave power generation units are connected to each other and to the floating platform to form an annular structure; the wave power generation unit includes a floating structure, a seawater flow channel and an air flow channel are arranged in the floating structure, the air flow channel is located above the seawater flow channel and is connected to the seawater flow channel; a seawater flow channel outlet is opened on the side of the floating structure away from the center of the annular structure, and the seawater flow channel outlet is used to connect the seawater flow channel with the sea; the turbine unit includes an air turbine and a generator, and the air turbine connects the air flow channel and the generator. In this way, the anti-overturning ability of the wave power generation device can be improved, the stability of the wave power generation device can be effectively improved, and the survivability of the wave power generation device in extreme sea conditions can be improved; the frequency response width of the wave power generation device can be effectively widened, and then the power generation efficiency of the wave power generation device can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of ocean wave energy utilization, and in particular to a wave energy power generation device. Background Art

[0002] Currently, the global demand for renewable energy is constantly increasing, and wave energy has attracted much attention as a potential clean and renewable energy source. Due to the wide distribution and huge reserves of wave energy, it is of great significance to fully utilize clean wave energy for efficient and reliable wave power generation.

[0003] To fully utilize wave energy for power generation, a variety of offshore wave power generation devices have been developed. However, these devices suffer from low stability, poor survivability in extreme sea conditions, and low power generation efficiency, resulting in slow progress in practical engineering applications and the inability to achieve industrialized operation. Summary of the Invention

[0004] Based on this, it is necessary to provide a wave energy power generation device to address the problems of low stability, weak survivability under extreme sea conditions, and low power generation efficiency in wave power generation devices in related technologies.

[0005] An embodiment of the present application provides a wave energy power generation device, comprising a floating platform, a plurality of wave power generation units and a turbine unit; the plurality of wave power generation units are connected in pairs to each other and to the floating platform to form an annular structure; the wave power generation units include a floating structure, wherein a seawater flow channel and an air flow channel are provided in the floating structure, the air flow channel is located above the seawater flow channel and is connected to the seawater flow channel; a seawater flow channel outlet is provided on a side of the floating structure away from the center of the annular structure, the seawater flow channel outlet is used to connect the seawater flow channel with the sea; the turbine unit includes an air turbine and a generator, the air turbine connecting the air flow channel and the generator.

[0006] In one embodiment, the wave energy power generation device further includes a connecting structure; the plurality of wave power generation units are divided into a plurality of wave power generation groups, each of which includes at least two wave power generation units; each wave power generation group corresponds to one of the connecting structures and one of the turbine units; the air flow passages of all the wave power generation units in each of the wave power generation groups are connected to the connecting structure, the connecting structure is connected to the air turbine in the corresponding turbine unit, and the air turbine is connected to the generator.

[0007] In one embodiment, the connection structure includes a connection pipe, which is connected to the air flow passages of all the wave power generation units in the wave power generation group; an opening is provided on the connection pipe, and the opening is sealed and connected to the air turbine.

[0008] In one embodiment, the seawater flow channel includes a first flow channel section; the first flow channel section is connected to the seawater flow channel outlet; the air flow channel is located above the first flow channel section and is arranged close to the center of the annular structure, and the air flow channel is connected to the first flow channel section; the size of the first flow channel section gradually increases in the direction from the center of the annular structure to the seawater flow channel outlet.

[0009] In one embodiment, the seawater flow channel also includes a second flow channel section, which is located on the side of the first flow channel section close to the center of the annular structure, and the second flow channel section is perpendicular to and connected to the first flow channel section; the air flow channel is connected to the end of the second flow channel section away from the first flow channel section and is connected to the second flow channel section.

[0010] In one embodiment, the device further comprises a plurality of baffles disposed in the first flow channel section, wherein the plurality of baffles extend along a first direction and are spaced apart along a second direction, wherein the first direction is an extension direction of the first flow channel section, and the second direction intersects the first direction;

[0011] A supporting float is further provided in the floating structure. The supporting float is arranged on the same side as the air flow channel. The supporting float is constructed as a hollow structure to provide auxiliary buoyancy to the floating structure.

[0012] In one embodiment, the floating structure includes a first shell and a second shell, the seawater flow channel is constructed in the first shell, and a first opening is opened on the side of the first shell away from the center of the annular structure, and the first opening serves as the seawater flow channel outlet; the second shell is located above the first shell and arranged close to the center of the annular structure; the second shell is connected to the first shell, and the air flow channel is constructed in the second shell.

[0013] In one embodiment, the first shell includes a first side plate close to the center of the annular structure, a second side plate, a third side plate, a fourth side plate and a fifth side plate distributed on the periphery of the first side plate and connected to the first side plate, and the second side plate, the third side plate, the fourth side plate and the fifth side plate are connected in sequence, wherein the second side plate and the fourth side plate are spaced around the center of the annular structure and extend radially along the annular structure, and the third side plate and the fifth side plate are spaced along the axial direction of the annular structure; a second opening is opened on the third side plate, and the second shell is connected to the second opening; the fifth side plate is tilted in a direction away from the third side plate.

[0014] In one embodiment, the floating structure is constructed as a cylindrical structure, the interior of the cylindrical structure is hollow, and the seawater flow channel and the air flow channel are adjacently arranged along the axis of the cylindrical structure.

[0015] In one embodiment, it further comprises a cage, which is arranged in the center of the annular structure and is connected to the floating platform and the plurality of wave power generation units; the cage is used for seawater aquaculture; and the wave power generation device is used to provide electrical energy to the cage.

[0016] The wave power generation device, by interconnecting multiple wave power generation units in pairs and connecting them to the floating platform to form a ring structure, can effectively reduce the possibility of the wave power generation device rolling over when floating, improve the wave power generation device's anti-capsulation ability, and effectively enhance the stability of the wave power generation device, improving its survivability in extreme sea conditions. The wave power generation units use air as the medium for energy conversion. Under the influence of waves, seawater flows within the floating structure, causing the water-air interface between the seawater flow channel and the air flow channel in the floating structure to oscillate up and down, resulting in periodic pressure changes in the air flow channel, thereby driving the air turbine to drive the generator to generate electricity, realizing the absorption and utilization of wave energy. By providing multiple wave power generation units, wave energy from multiple directions can be absorbed, effectively widening the frequency response of the wave power generation device, and thus effectively improving the power generation efficiency of the wave power generation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a wave energy power generation device provided in one embodiment of the present application.

[0018] FIG2 is another schematic structural diagram of a wave energy power generation device provided in an embodiment of the present application.

[0019] FIG3 is a schematic structural diagram of a wave energy power generation device provided in another embodiment of the present application.

[0020] FIG4 is a schematic structural diagram of a wave power generation unit in a wave energy power generation device provided in an embodiment of the present application.

[0021] FIG. 5 is a schematic diagram of the front structure of the wave power generation unit shown in FIG. 4 .

[0022] FIG. 6 is a schematic top view of the wave power generation unit shown in FIG. 4 .

[0023] FIG. 7 is a schematic structural diagram of the wave power generation unit shown in FIG. 4 during operation.

[0024] FIG8 is a schematic structural diagram of a wave power generation unit in a wave energy power generation device provided in another embodiment of the present application.

[0025] FIG9 is a schematic structural diagram of a wave power generation unit in a wave energy power generation device provided in another embodiment of the present application.

[0026] Description of reference numerals:

[0027] 10. Wave energy power generation device;

[0028] 110, floating platform; 120, wave power generation unit; 121, floating structure; 121a, first shell; 121a1, first side panel; 121a2, second side panel; 121a3, third side panel; 121a4, fourth side panel; 121a5, fifth side panel; 121a6, first opening; 121a7, second opening; 121b, second shell; 1211, seawater flow channel; 1211a, first flow channel section; 1211b, second flow channel section; 1212, air flow channel Channel; 1212a, vertical tapered section; 1212b, curved tapered section; 1213, seawater flow channel outlet; 1214, supporting buoy; 1215, counterweight; 130, turbine unit; 131, air turbine; 132, generator; 140, connecting structure; 141, connecting pipe; 150, bulkhead; 160, mooring system; 161, elastic rope; 162, buoy; 163, anchor chain; 164, anchor; 170, control system; 180, cage; 190, counterweight. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0032] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0035] 1 to 3 , an embodiment of the present application provides a wave energy power generation device 10, comprising a floating platform 110, a plurality of wave power generation units 120, and a turbine assembly 130. The plurality of wave power generation units 120 are connected in pairs to each other and to the floating platform 110 to form an annular structure. The wave power generation units 120 include a floating structure 121, within which are disposed a seawater flow channel 1211 and an air flow channel 1212. The air flow channel 1212 is located above and communicates with the seawater flow channel 1211. A seawater flow channel inlet 1211 is defined on a side of the floating structure 121 facing away from the center of the annular structure. The seawater flow channel inlet 1211 is configured to connect the seawater flow channel 1211 to the sea. The turbine assembly 130 includes an air turbine 131 and a generator 132. The air turbine 131 connects the air flow channel 1212 and the generator 132.

[0036] It is understood that the number of turbine units 130 can be one or more. The number of wave power generation units 120 can be set according to demand. The floating platform 110 can be used to make the entire wave energy power generation device 10 float on the sea.

[0037] The plurality of wave power generation units 120 are interconnected in pairs and connected to the floating platform 110 to form an annular structure. This means that the plurality of wave power generation units 120 are arranged closely together, and two adjacent wave power generation units 120 are interconnected, so that the plurality of wave power generation units 120 are connected together, and the wave power generation units 120 located on both sides are respectively connected to the floating platform 110 to form an annular structure. The floating platform 110 can be constructed as an internally hollow arc-shaped structure, and the annular structure can be a circular ring structure. This effectively reduces the possibility of the wave energy power generation device 10 rolling over during buoyancy, improves the anti-capsulation capability of the wave energy power generation device 10, effectively improves the stability of the wave energy power generation device 10, and improves the survivability of the wave energy power generation device 10 in extreme sea conditions.

[0038] The plurality of wave power generation units 120 are located at different positions on the floating platform 110 , thereby absorbing wave energy from different directions, thereby effectively widening the frequency response width of the wave power generation device 10 , and further effectively improving the power generation efficiency of the wave power generation device 10 .

[0039] In summary, the wave energy power generation device 10 provided in the embodiment of the present application, by interconnecting the plurality of wave power generation units 120 in pairs and connecting them to the floating platform 110 to form a ring structure, can effectively reduce the possibility of the wave energy power generation device 10 tilting when floating, improve the anti-overturning ability of the wave energy power generation device 10, effectively improve the stability of the wave energy power generation device 10, and improve the survivability of the wave energy power generation device 10 in extreme sea conditions. The wave power generation unit 120 uses air as the medium for energy conversion. Under the influence of waves, seawater flows within the floating structure 121, causing the water-air interface between the seawater flow channel 1211 and the air flow channel 1212 in the floating structure 121 to oscillate up and down. This causes the pressure in the air flow channel 1212 to fluctuate periodically, thereby driving the air turbine 131 and the generator 132 to generate electricity, thereby absorbing and utilizing wave energy. By installing multiple wave power generation units 120, wave energy from multiple directions can be absorbed, thereby effectively widening the frequency response of the wave power generation device 10 and thereby effectively improving the power generation efficiency of the wave power generation device 10.

[0040] As shown in Figures 1 to 3, in one embodiment, the wave energy power generation device 10 further includes a connecting structure 140; the plurality of wave power generation units 120 are divided into a plurality of wave power generation groups, each wave power generation group including at least two wave power generation units 120; each wave power generation group corresponds to a connecting structure 140 and a turbine unit 130; the air flow passages 1212 of all the wave power generation units 120 in each wave power generation group are in communication with the connecting structure 140, the connecting structure 140 is connected to the air turbine 131 in the corresponding turbine unit 130, and the air turbine 131 is connected to the generator 132.

[0041] Thus, by connecting all the wave power generation units 120 in each wave power generation group to the turbine group 130 via the connection structure 140, the number of turbine groups 130 in the wave power generation device 10 can be reduced, the cost of the wave power generation device 10 can be reduced, and the structural flexibility of the wave power generation device 10 can be improved. This allows the wave power generation device 10 to be applicable to different environments and meet different needs.

[0042] As shown in FIG. 1 to FIG. 3 , in one embodiment, the connection structure 140 includes a connection pipe 141 , which is in communication with the air flow passages 1212 of all the wave power generation units 120 in the corresponding wave power generation group. The connection pipe 141 is provided with an opening, which is sealedly connected to the air turbine 131 .

[0043] Thus, all wave power generation units 120 in each wave power generation group can be conveniently connected to the corresponding turbine group 130 through the connecting pipe 141. The connecting pipe 141 has a simple structure and low cost, thereby reducing the cost of the wave power generation device 10 and facilitating the popularization and use of the wave power generation device 10.

[0044] As shown in Figures 4 and 5, in one embodiment, the seawater flow channel 1211 includes a first flow channel section 1211a; the first flow channel section 1211a is connected to the seawater flow channel 1211 mouth; the air flow channel 1212 is located above the first flow channel section 1211a and is arranged close to the center of the annular structure, and the air flow channel 1212 is connected to the first flow channel section 1211a.

[0045] In this way, the mouth of the seawater flow channel 1211 can be directed towards the direction of the incoming waves, so that seawater can flow into or out of the first flow channel section 1211a of the seawater flow channel 1211 under the action of waves, causing the water-gas interface between the first flow channel section 1211a and the air flow channel 1212 to oscillate up and down, so that the pressure in the air flow channel 1212 changes periodically, thereby driving the air turbine 131 to drive the generator 132 to generate electricity, realizing the absorption and utilization of wave energy and improving the power generation efficiency.

[0046] As shown in Figures 4 to 6, in one embodiment, the first flow channel section 1211a of the seawater flow channel 1211 is constructed as a trumpet-shaped structure; specifically, the size of the first flow channel section 1211a gradually increases in the direction from the center of the annular structure to the mouth of the seawater flow channel 1211.

[0047] As a result, a larger range of seawater below the outlet of the seawater flow channel 1211 can be guided to the outlet of the seawater flow channel 1211, thereby widening the frequency response width, which is beneficial to improving the buoyancy efficiency of the wave power generation unit 120, and thus beneficial to improving the power generation efficiency of the wave power generation device 10.

[0048] As shown in Figures 4 and 5, in one embodiment, the seawater flow channel 1211 also includes a second flow channel section 1211b, which is located on the side of the first flow channel section 1211a close to the center of the annular structure. The second flow channel section 1211b is perpendicular to and connected to the first flow channel section 1211a; the air flow channel 1212 is connected to the end of the second flow channel section 1211b away from the first flow channel section 1211a and is connected to the second flow channel section 1211b.

[0049] Therefore, by setting the second flow channel section 1211b, the second flow channel section 1211b and the first flow channel section 1211a can jointly form an L-shaped seawater flow channel 1211, thereby increasing the volume of seawater entering and exiting the device in each wave cycle, effectively reducing wave energy loss, and improving energy capture efficiency, thereby improving power generation efficiency.

[0050] As shown in FIG4 , one embodiment further includes a plurality of baffles 150 disposed within the first flow channel segment 1211 a. The baffles 150 extend along a first direction and are spaced apart along a second direction. The first direction is the direction in which the first flow channel segment 1211 a extends, and the second direction intersects the first direction. Furthermore, the second direction is perpendicular to the first direction.

[0051] Thus, by providing multiple baffles 150 within the first flow channel section 1211a, the structural strength of the first flow channel section 1211a can be improved, thereby improving the structural strength of the floating structure 121, improving the stability of the wave power generation unit 120, and thus improving the stability of the wave power generation device 10. Furthermore, the energy loss caused by lateral wave energy radiation can be reduced, improving the energy capture efficiency of the device, and thus improving the power generation efficiency.

[0052] As shown in Figures 5 and 6, in one embodiment, a supporting float 1214 is further provided in the floating structure 121. The supporting float 1214 is arranged on the same side as the air flow channel 1212, that is, the supporting float 1214 is located above the first flow channel section 1211a; the supporting float 1214 is constructed as a hollow structure to provide auxiliary buoyancy to the floating structure 121.

[0053] As shown in Figures 5 and 6, in a specific example, a counterweight block 190 can be set in the supporting float 1214. The counterweight block 190 can be arranged on one side of the supporting float 1214 close to the mouth of the seawater flow channel 1211. As a result, the center of gravity of the entire wave power generation unit 120 can be easily adjusted, so that the wave power generation unit 120 can float stably on the sea surface, reducing the probability of the wave power generation unit 120 tilting or even capsizing, thereby improving the anti-capsulation ability of the wave energy power generation device 10, effectively improving the stability of the wave energy power generation device 10, and improving the survivability of the wave energy power generation device 10 in extreme sea conditions.

[0054] As shown in Figure 4, in one embodiment, the floating structure 121 includes a first shell 121a and a second shell 121b. A seawater flow channel 1211 is constructed in the first shell 121a. A first opening 121a6 is opened on the side of the first shell 121a away from the center of the annular structure. The first opening 121a6 serves as the mouth of the seawater flow channel 1211; the second shell 121b is located above the first shell 121a and is arranged close to the center of the annular structure; the second shell 121b is connected to the first shell 121a, and an air flow channel 1212 is constructed in the second shell 121b.

[0055] Thus, the manufacturing of the floating structure 121 can be facilitated, and the seawater flow channel 1211 and the air flow channel 1212 can be formed in the floating structure 121 .

[0056] As shown in Figures 4 and 5, in one embodiment, the first shell 121a includes a first side plate 121a1 close to the center of the annular structure, a second side plate 121a2, a third side plate 121a3, a fourth side plate 121a4 and a fifth side plate 121a5 distributed on the outer periphery of the first side plate 121a1 and connected to the first side plate 121a1, and the second side plate 121a2, the third side plate 121a3, the fourth side plate 121a4 and the fifth side plate 121a5 are connected in sequence, wherein the second side plate 121a2 and the fourth side plate 121a4 are spaced apart around the center of the annular structure and extend in the radial direction of the annular structure, and the third side plate 121a3 and the fifth side plate 121a5 are spaced apart along the axial direction of the annular structure; a second opening 121a7 is opened on the third side plate 121a3, and the second shell 121b is connected to the second opening 121a7; and the fifth side plate 121a5 is inclined in a direction away from the third side plate 121a3.

[0057] Thus, the first shell 121a can combine the structural features of the trumpet shape and the fan shape, so that the size of the seawater flow channel 1211 gradually increases in the direction from the center of the annular structure to the mouth of the seawater flow channel 1211, so that seawater in a larger range around the mouth of the seawater flow channel 1211, especially below the mouth of the seawater flow channel 1211, can be directed to the mouth of the seawater flow channel 1211, thereby increasing the volume of seawater entering and exiting the device in each wave cycle, broadening the frequency response width, effectively reducing wave energy loss, and improving energy capture efficiency, thereby improving power generation efficiency. On the other hand, when the plurality of wave power generation units 120 are connected to each other in pairs, the plurality of first shells 121a of the plurality of wave power generation units 120 can be closely attached and connected to each other, and the first shells 121a on both sides are respectively connected to the floating platform 110 to form a ring-shaped platform. This can effectively improve the stability of the connection between the plurality of wave power generation units 120 and the stability of the connection between the plurality of wave power generation units 120 and the floating platform 110, thereby improving the stability of the wave energy power generation device 10 and improving the survivability of the wave energy power generation device 10 in extreme sea conditions.

[0058] As shown in FIG8 , in one embodiment, the air flow channel 1212 is a streamlined vertically tapered flow channel with a vertical axis. Specifically, the air flow channel 1212 includes a vertically tapered section 1212a formed by the top port of the second flow channel section 1211b vertically tapering upward to transition into a first circular port.

[0059] As shown in Figures 4 and 5, in one embodiment, the air flow channel 1212 also includes a curved tapered section 1212b, which is formed by a first circular port making a 90° arc bend and gradually transitioning to a second circular port. The direction of the curved tapered section 1212b is the same as that of the seawater flow channel 1211.

[0060] As shown in FIG8 , in one embodiment, the air turbine 131 may be a U-shaped flow channel impulse air turbine 131 , the turbine axis of the U-shaped flow channel impulse air turbine 131 is arranged vertically, and the air turbine 131 is connected to the first circular port.

[0061] As shown in Figures 4 and 5, in one embodiment, the air turbine 131 can adopt an I-type flow channel impulse air turbine 131 machine, the turbine axis of the I-type flow channel impulse air turbine 131 machine is roughly parallel to the extension direction of the seawater flow channel 1211, and the air turbine 131 can be connected to the second circular port.

[0062] As shown in FIG9 , in one embodiment, the floating structure 121 is constructed as a cylindrical structure, the interior of the cylindrical structure is hollow, and the seawater flow channel 1211 and the air flow channel 1212 are adjacently arranged along the axis of the cylindrical structure.

[0063] Thus, when the plurality of wave power generation units 120 are connected to each other in pairs, the floating structures 121 of the plurality of wave power generation units 120 can be closely attached and connected to each other, and the floating structures 121 located on both sides are respectively connected to the floating platform 110 to form a ring-shaped platform. This can effectively improve the stability of the connection between the plurality of wave power generation units 120 and the stability of the connection between the plurality of wave power generation units 120 and the floating platform 110, thereby improving the stability of the wave energy power generation device 10 and improving the survivability of the wave energy power generation device 10 in extreme sea conditions.

[0064] As shown in Figure 9, in one embodiment, the air turbine 131 is disposed on the top of the cylindrical structure and communicates with the interior of the cylindrical structure. Specifically, the air turbine 131 can be a U-shaped flow channel impulse air turbine 131 machine.

[0065] In one embodiment, the air turbine 131 and the generator 132 are both encapsulated with waterproof, moisture-proof, and salt-fog corrosion-resistant materials, and a magnetic coupling is used to establish a non-contact physical connection between the air turbine 131 and the generator 132, thereby reducing the additional damping torque caused by the waterproof or moisture-proof and salt-fog-proof encapsulation, thereby improving the power generation efficiency of the wave energy power generation device 10.

[0066] As shown in Figures 1 to 3 and 7, one embodiment further includes multiple mooring systems 160. Mooring systems 160 include elastic ropes 161, buoys 162, anchors 164, chains 163, and anchors 164. Floats 162 are connected to wave power generation units 120 via elastic ropes 161, which in turn are connected to anchors 164 via chains 163. Mooring systems 160 are capable of locating the direction of the mouth of seawater flow channel 1211. The connection point between elastic ropes 161 and wave power generation device 10 (i.e., the mooring point) is located above the waterline. Multiple mooring systems 160 can be arranged at intervals around the circumference of the annular structure.

[0067] As shown in Figures 5 and 6, in one embodiment, a control system 170 is further included. The control system 170 can be set in the floating platform 110 or in the supporting float 1214 in the floating structure 121; the control system 170 can be connected to the turbine unit 130 and the mooring system 160.

[0068] As shown in Figures 1 to 3, in one embodiment, a cage 180 is further included, which is arranged in the center of the annular structure and connected to the floating platform 110 and multiple wave power generation units 120; the cage 180 is used for marine aquaculture; and the wave power generation device is used to provide electricity to the cage 180.

[0069] Therefore, wave energy and electricity can be reasonably utilized to realize deep-sea self-powered cage 180 aquaculture, which provides a new idea for solving the problem of offshore electricity consumption in deep-sea cage 180 aquaculture. The advantages of wave energy power generation device 10 are used to solve the electricity dilemma of aquaculture cage 180, and the destructive force of ocean waves on the cage 180 aquaculture support platform is converted into electricity urgently needed for deep-sea cage 180 aquaculture production, which can effectively accelerate the development of marine new energy and ensure deep-sea aquaculture.

[0070] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A wave energy power generation device, characterized in that: include: floating platform; A plurality of wave power generation units, wherein two of the plurality of wave power generation units are connected to each other and to the floating platform to form an annular structure; the wave power generation unit comprises a floating structure, wherein a seawater flow channel and an air flow channel are arranged in the floating structure, wherein the air flow channel is located above the seawater flow channel and is connected to the seawater flow channel; a seawater flow channel opening is provided on a side of the floating structure away from the center of the annular structure, wherein the seawater flow channel opening is used to connect the seawater flow channel with the sea; A turbine unit, comprising an air turbine and a generator, wherein the air turbine is connected to the air flow passage and the generator; The plurality of wave power generation units are arranged closely in sequence, and two adjacent wave power generation units are connected to each other, so that the plurality of wave power generation units are connected together, and the wave power generation units located on both sides are respectively connected to the floating platform to form the annular structure; The floating platform is used to make the entire wave energy power generation device float on the sea. The floating platform is constructed as an arc-shaped structure with a hollow interior, and the annular structure is a circular ring structure.

2. The wave energy power generation device according to claim 1, characterized in that: The wave energy power generation device further comprises a connection structure; The plurality of wave power generation units are divided into a plurality of wave power generation groups, each of which includes at least two wave power generation units; each of which corresponds to a connection structure and a turbine unit; the air flow passages of all the wave power generation units in each of which are connected to the connection structure, the connection structure is connected to the air turbine in the corresponding turbine unit, and the air turbine is connected to the generator.

3. The wave energy power generation device according to claim 2, characterized in that: The connection structure comprises a connection pipe, and the connection pipe is communicated with the air flow passages corresponding to all the wave power generation units in the wave power generation group; an opening is arranged on the connection pipe, and the opening is sealed and connected with the air turbine.

4. The wave energy power generation device according to claim 1, characterized in that: The seawater flow channel includes a first flow channel section; the first flow channel section is connected to the seawater flow channel outlet; the air flow channel is located above the first flow channel section and arranged close to the center of the annular structure, and the air flow channel is connected to the first flow channel section; the size of the first flow channel section gradually increases in the direction from the center of the annular structure to the seawater flow channel outlet.

5. The wave energy power generation device according to claim 4, characterized in that: The seawater flow channel also includes a second flow channel section, which is located on a side of the first flow channel section close to the center of the annular structure, and the second flow channel section is perpendicular to and connected to the first flow channel section; the air flow channel is connected to an end of the second flow channel section away from the first flow channel section and is connected to the second flow channel section.

6. The wave energy power generation device according to claim 4 or 5, characterized in that: It also includes a plurality of baffles disposed in the first flow channel section, the plurality of baffles extending along a first direction and spaced apart along a second direction, the first direction being an extending direction of the first flow channel section, and the second direction intersecting the first direction; A supporting float is also provided in the floating structure, and the supporting float is arranged on the same side as the air flow channel; the supporting float is constructed as a hollow structure to provide auxiliary buoyancy to the floating structure.

7. The wave energy power generation device according to claim 1, characterized in that: The floating structure includes a first shell and a second shell, the seawater flow channel is constructed in the first shell, and a first opening is opened on the side of the first shell away from the center of the annular structure, and the first opening serves as a seawater flow channel outlet; the second shell is located above the first shell and arranged close to the center of the annular structure; the second shell is connected to the first shell, and the air flow channel is constructed in the second shell.

8. The wave energy power generation device according to claim 7, characterized in that: The first shell includes a first side plate close to the center of the annular structure, a second side plate, a third side plate, a fourth side plate and a fifth side plate distributed on the periphery of the first side plate and connected to the first side plate, and the second side plate, the third side plate, the fourth side plate and the fifth side plate are connected in sequence, wherein the second side plate and the fourth side plate are spaced around the center of the annular structure and extend radially along the annular structure, and the third side plate and the fifth side plate are spaced along the axial direction of the annular structure; a second opening is provided on the third side plate, and the second shell is connected to the second opening; the fifth side plate is inclined in a direction away from the third side plate.

9. The wave energy power generation device according to claim 1, characterized in that: The floating structure is constructed as a cylindrical structure, the interior of the cylindrical structure is hollow, and the seawater flow channel and the air flow channel are adjacently arranged along the axial direction of the cylindrical structure.

10. The wave energy power generation device according to claim 1, characterized in that: It also includes a cage, which is passed through the center of the annular structure and connected to the floating platform and the multiple wave power generation units; the cage is used for seawater aquaculture; and the wave energy power generation device is used to provide electrical energy to the cage.

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