Wave energy power generation device, power generation method and floating breakwater

Abstract

A wave energy power generation device comprises an oscillating water column power generation mechanism, the oscillating water column power generation mechanism comprises at least one oscillating water column power generation cabin, a bottom water passing opening is formed in the bottom of the oscillating water column power generation cabin, and an air turbine generator is arranged at the top of the oscillating water column power generation cabin; the oscillating floater power generation mechanism comprises at least one oscillating floater power generation cabin arranged on the sea surface in a floating mode, floaters and a plurality of hydraulic cylinders are arranged in the oscillating floater power generation cabins, pistons of the hydraulic cylinders are fixedly connected with moving rods, the moving rods extend out of cylinder bodies and then are rotationally connected with transmission rods, and all the transmission rods are jointly and rotationally connected with a connecting platform. The floater is fixedly connected with the connecting platform, and cylinder bodies of all the hydraulic cylinders are jointly connected with a liquid turbine generator through a liquid distribution assembly. The electric energy conditioning mechanism is used for collecting and transmitting electric energy generated by the air turbine generator and the liquid turbine generator. According to the wave power generation device, wave power can be more efficiently utilized for power generation, the overall structure is more compact, stability is higher, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, in particular to a wave energy power generation device, a power generation method and a floating breakwater. Background Art

[0002] Wave energy is an important form of marine energy, which has a wide distribution and huge energy potential. With the increase of global energy demand and the gradual depletion of fossil fuel resources, the development of renewable marine energy, especially wave energy, has become one of the hot spots of sustainable energy development. The effective conversion of wave energy can also provide a stable power supply for offshore facilities, especially in the sea far away from land, where wave energy shows good prospects for utilization.

[0003] In the prior art, there are two main ways to use wave energy to generate electricity. The first is to absorb wave energy and drive liquid flow, thereby driving a generator to generate electricity; the second is to use the water level changes caused by waves to drive air compression or expansion, thereby generating reciprocating airflow, which drives a generator through an air turbine to generate electricity, completing the conversion of wave energy into mechanical energy and then into electrical energy.

[0004] Of the two methods mentioned above, the first method can efficiently adapt to different sea conditions and wave types, especially in irregular wave environments, and can maintain a high energy conversion efficiency. However, its single body size and deployment method are subject to many restrictions, and its structural stability is also poor in extreme sea conditions. The advantage of the second method is that its mechanical structure is relatively simple, but it is highly dependent on the directionality of waves, and the energy capture efficiency is low in complex multi-directional wave conditions. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a wave energy power generation device, a power generation method and a floating breakwater, which can more efficiently utilize wave energy for power generation, and have a more compact overall structure, greater stability and a wider range of applications.

[0006] In order to achieve the above object, the specific scheme adopted by the present invention is: A wave energy power generation device comprises an oscillating water column power generation mechanism, an oscillating float power generation mechanism and an electric energy conditioning mechanism; The oscillating water column power generation mechanism comprises at least one oscillating water column power generation cabin, the lower part of which is placed below the sea surface, a bottom water inlet is provided at the bottom of the oscillating water column power generation cabin, seawater enters the lower part of the oscillating water column power generation cabin from the bottom water inlet, and an air turbine generator is provided on the top of the oscillating water column power generation cabin; The oscillating float power generation mechanism comprises at least one oscillating float power generation cabin floating on the sea surface, wherein a float and a plurality of hydraulic cylinders are arranged in the oscillating float power generation cabin, wherein the piston of the hydraulic cylinder is fixedly connected with a moving rod, wherein the moving rod is rotatably connected with a transmission rod after extending to the outside of the cylinder body, wherein all the transmission rods are rotatably connected with a connection platform, wherein the float is fixedly connected with the connection platform, and wherein the cylinder bodies of all the hydraulic cylinders are commonly connected with a liquid turbine generator through a liquid distribution assembly; All of the oscillating water column power generation cabins and the oscillating float power generation cabins are fixedly connected; The electric energy conditioning mechanism is used for collecting and transmitting the electric energy generated by the air turbine generator and the liquid turbine generator.

[0007] Preferably, a side water inlet is provided at the lower side of the oscillating water column power generation cabin, and the side water inlet is placed below the sea surface.

[0008] Preferably, a stabilizing platform is horizontally fixedly provided in the oscillating float power generation cabin, the stabilizing platform is located above the connecting platform, a balancing channel is provided in the middle of the stabilizing platform, and the cylinder body of the hydraulic cylinder is fixedly provided on the stabilizing platform.

[0009] Preferably, the liquid distribution assembly includes a plurality of distribution units corresponding one-to-one to the hydraulic cylinders, the distribution units include a high-pressure pipeline and a low-pressure pipeline, one end of the high-pressure pipeline is connected to a first position of the cylinder body, one end of the low-pressure pipeline is connected to a second position of the cylinder body, and the first position and the second position are respectively located on both sides of the piston, a high-pressure accumulator, a speed regulating valve and a low-pressure accumulator are sequentially arranged between the other end of the high-pressure pipeline and the other end of the low-pressure pipeline, a kinetic energy output point is formed between the speed regulating valve and the low-pressure accumulator, and the kinetic energy output points of all the distribution units are commonly connected to a hydraulic motor, and the hydraulic motor is used to drive the liquid turbine generator.

[0010] Preferably, the distribution unit comprises a hydraulic bridge circuit, and the hydraulic bridge circuit is provided with a first input interface and a second input interface, the first input interface is used to connect with the high-pressure pipeline, and the second input interface is used to connect with the low-pressure pipeline.

[0011] A wave energy power generation method, based on the above-mentioned wave energy power generation device, the method comprises the following steps: In the process of seawater entering and exiting the oscillating water column power generation cabin to cause the gas in the cabin to flow, the air turbine generator is used to absorb the energy of the gas in the cabin and convert it into first electrical energy; In the process of the oscillating buoy power generation cabin being driven by waves to shake and drive the buoy to swing, the energy of the buoy is absorbed by the hydraulic cylinder and the liquid distribution assembly, and converted into second electric energy by the liquid turbine generator; The electric energy conditioning mechanism is used to collect the first electric energy and the second electric energy to obtain total electric energy, and the total electric energy is output externally.

[0012] A floating breakwater comprises a square box floating on the sea surface, the bottom of the square box is placed below the sea surface, and the bottom of the square box is fixedly connected to a horizontal plate through a plurality of columns, and at least one oscillating water column power generation cabin and at least one oscillating float power generation cabin are separated in the square box; A bottom water inlet is provided at the bottom of the oscillating water column power generation cabin, and seawater enters the lower part of the oscillating water column power generation cabin from the bottom water inlet. An air turbine generator is provided at the top of the oscillating water column power generation cabin. A float and a plurality of hydraulic cylinders are provided in the oscillating float power generation cabin, the piston of the hydraulic cylinder is fixedly connected to a moving rod, the moving rod extends to the outside of the cylinder body and is rotatably connected to a transmission rod, all the transmission rods are rotatably connected to a connecting platform, the float is fixedly connected to the connecting platform, and the cylinder bodies of all the hydraulic cylinders are connected to a liquid turbine generator through a liquid distribution component.

[0013] Preferably, the horizontal plate is rectangular, and a plurality of the uprights are evenly arranged at the edges of the horizontal plate.

[0014] Preferably, a plurality of first partitions are fixedly provided inside the square box, and the plurality of first partitions enclose the oscillating float power generation cabin to form the oscillating float power generation cabin, and a plurality of second partitions are fixedly connected between the oscillating float power generation cabin and the inner wall of the square box, and the second partitions separate the space between the oscillating float power generation cabin and the inner wall of the square box into at least one oscillating water column power generation cabin and at least one buoyancy cabin.

[0015] Preferably, the buoyancy chamber is filled with regulating gas, and a gas regulating valve is provided on the side wall of the buoyancy chamber.

[0016] The wave energy power generation device of the present invention can simultaneously utilize an oscillating water column power generation mechanism and an oscillating float power generation mechanism to generate electricity. The oscillating water column power generation mechanism and the oscillating float power generation mechanism absorb wave energy in different forms respectively, can fully absorb wave energy, and can generate electricity stably in a complex marine environment, especially in offshore areas where irregular waves frequently act, can achieve efficient absorption and stable conversion of wave energy, and ensure the continuous reliability of power generation output and wave-breaking functions; because all oscillating water column power generation cabins and all oscillating float power generation cabins are fixedly connected, the overall structural strength is higher, the stability is stronger, and long-term stable power generation can be achieved.

[0017] The floating breakwater of the present invention integrates the above-mentioned wave energy power generation device into a square box. The square box not only plays the function of wave protection, but also can realize wave energy power generation, which can provide electric energy for the protected facilities and achieve the effect of energy saving. In addition, the integration of multiple structures with different functions maximizes the use of ocean space and wave resources, and reduces the space and infrastructure investment required for independent power generation devices and breakwaters. On the other hand, in the breakwater, by setting columns and horizontal plates, part of the wave energy directly impacting the square box can be reflected and dissipated, thereby improving the wave protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the floating breakwater; Figure 2 It is a schematic diagram of the arrangement of floating breakwaters; Figure 3 It is a structural schematic diagram of an oscillating float power generation mechanism; Figure 4 is a schematic diagram of the structure of an air turbine generator; Figure 5 It is a schematic diagram of the anchoring method of the floating breakwater; Figure 6 It is a schematic diagram of the structure of the liquid distribution component.

[0020] Figure numerals: 1-square box, 2-column, 3-horizontal plate, 4-side water inlet, 5-bottom water inlet, 6-air turbine generator, 7-water chamber, 8-air chamber, 9-air guide hole, 10-oscillating water column power generation cabin, 11-buoyancy cabin, 12-oscillating float power generation cabin, 13-gas regulating valve, 14-top plate, 15-hydraulic cylinder, 16-stable platform, 17-balance channel, 18-moving rod, 19-first ball joint, 20-transmission rod, 21-second ball joint, 22-connecting plane Platform, 23-float, 24-power generation body, 25-power input shaft, 26-pneumatic turbine, 27-hydraulic bridge, 28-high-pressure pipeline, 29-high-pressure accumulator, 30-speed regulating valve, 31-first one-way valve, 32-second one-way valve, 33-third one-way valve, 34-fourth one-way valve, 35-liquid turbine generator, 36-low-pressure accumulator, 37-hydraulic motor, 38-low-pressure pipeline, 39-anchor block, 40-connecting ring, 41-auxiliary cable, 42-main cable, 43-lifting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-6 As shown, a wave energy power generation device includes an oscillating water column power generation mechanism, an oscillating float power generation mechanism and an electric energy conditioning mechanism.

[0023] The oscillating water column power generation mechanism includes at least one oscillating water column power generation cabin 10. The lower part of the oscillating water column power generation cabin 10 is placed below the sea surface. A bottom water outlet 5 is provided at the bottom of the oscillating water column power generation cabin 10. Seawater enters the lower part of the oscillating water column power generation cabin 10 from the bottom water outlet 5. An air turbine generator 6 is provided at the top of the oscillating water column power generation cabin 10.

[0024] The oscillating float power generation mechanism includes at least one oscillating float power generation cabin 12 floating on the sea surface, in which a float 23 and a plurality of hydraulic cylinders 15 are arranged, the piston of the hydraulic cylinder 15 is fixedly connected to a moving rod 18, the moving rod 18 extends to the outside of the cylinder body and is rotatably connected to a transmission rod 20, all the transmission rods 20 are rotatably connected to a connecting platform 22, the float 23 is fixedly connected to the connecting platform 22, and the cylinder bodies of all the hydraulic cylinders 15 are commonly connected to a liquid turbine generator 35 through a liquid distribution assembly. More specifically, one end of the transmission rod 20 is rotatably connected to the moving rod 18 through a first ball joint 19, and the other end of the transmission rod 20 is rotatably connected to the connecting platform 22 through a second ball joint 21.

[0025] All the oscillating water column power generation chambers 10 and the oscillating float power generation chambers 12 are fixedly connected.

[0026] The electric energy conditioning mechanism is used to collect and transmit the electric energy generated by the air turbine generator 6 and the liquid turbine generator 35 .

[0027] When in use, the entire device is set on the sea surface. The oscillating water column power generation mechanism and the oscillating float power generation mechanism can generate electricity independently and generate the first electric energy and the second electric energy respectively. The electric energy conditioning mechanism can collect and condition the first electric energy and the second electric energy to obtain the total electric energy, and output the total electric energy to the outside, so as to make full use of wave energy for power generation.

[0028] In the oscillating water column power generation mechanism, a water chamber 7 is formed at the lower part of the oscillating water column power generation cabin 10, and an air chamber 8 is formed at the upper part of the oscillating water column power generation cabin 10. When seawater enters and exits the oscillating water column power generation cabin 10 through the bottom water inlet 5, the water level in the water chamber 7 will change. When the water level in the water chamber 7 rises, a positive pressure environment can be formed in the air chamber 8, causing the gas to flow upward, and driving the air turbine generator 6 to operate and generate the first electric energy. When the water level in the water chamber 7 drops, a negative pressure environment can be formed in the air chamber 8, thereby sucking in external gas. During the process of gas flowing into the air chamber 8, the air turbine generator 6 is driven to operate and generate the first electric energy. Obviously, an air guide hole 9 should be opened at the top of the oscillating water column power generation cabin 10. The air guide hole 9 is used to allow the gas in the air chamber 8 to flow outward or for external gas to flow into the air chamber 8. Furthermore, the structure of the air turbine generator 6 includes a power generation body 24 and a pneumatic turbine 26 fixedly arranged on the top of the oscillating water column power generation cabin 10, and the air guide hole 9 faces the pneumatic turbine 26, and the impeller of the pneumatic turbine 26 is fixedly sleeved on the power input shaft 25 of the power generation body 24. The gas can drive the impeller of the starting turbine 26 to rotate during the process of passing through the air guide hole 9, and then drive the power input shaft 25 to rotate, thereby driving the power generation body 24 to generate the first electric energy. The specific power generation principle of the air turbine generator 6 belongs to the prior art and will not be repeated here.

[0029] In the oscillating float power generation mechanism, when the oscillating float power generation cabin 12 is driven by waves and moves, the float 23 is relatively displaced with the hydraulic cylinder 15 under the action of inertia, and then drives all the moving rods 18 to move through the connecting platform 22 and the transmission rod 20. During the movement of the moving rod 8, the piston can be driven to move in the cylinder body of the hydraulic cylinder 15, thereby driving the liquid in the cylinder body to flow. During the flow of the liquid, the liquid enters the liquid distribution component and finally drives the liquid turbine generator 35 to move to generate the second electric energy. All the hydraulic cylinders 15 are distributed in an annular shape to ensure that the piston of the hydraulic cylinder 15 can be driven to move during the movement of the float 23 in any direction, thereby improving the power generation efficiency of the liquid float power generation mechanism.

[0030] The present invention can simultaneously utilize an oscillating water column power generation mechanism and an oscillating float power generation mechanism to generate electricity. The oscillating water column power generation mechanism and the oscillating float power generation mechanism absorb wave energy in different forms respectively, can fully absorb wave energy, and can generate electricity stably in a complex marine environment, especially in offshore areas where irregular waves frequently act, can achieve efficient absorption and stable conversion of wave energy, and ensure the continuous reliability of power generation output and wave-breaking functions; because all oscillating water column power generation cabins 10 and all oscillating float power generation cabins 2 are fixedly connected, the overall structural strength is higher, the stability is stronger, and long-term stable power generation can be achieved.

[0031] In order to further ensure that seawater can smoothly enter and exit the oscillating water column power generation cabin 10, a side water inlet 4 is opened at the lower side of the oscillating water column power generation cabin 10, and the side water inlet 4 is placed below the sea surface. The side water inlet 4 and the bottom water inlet 5 cooperate with each other to make the process of seawater entering and exiting the oscillating water column power generation cabin 10 smoother, thereby making the pressure in the air chamber 8 change more frequently, thereby achieving the effect of improving the power generation efficiency of the oscillating water column power generation mechanism.

[0032] The specific arrangement of the hydraulic cylinder 15 is as follows: a stabilizing platform 16 is horizontally fixedly arranged in the oscillating float power generation cabin 12, the stabilizing platform 16 is located above the connecting platform 22, and a balancing channel 17 is opened in the middle of the stabilizing platform 16, and the cylinder body of the hydraulic cylinder 15 is fixedly arranged on the stabilizing platform 16. All the hydraulic cylinders 15 are fixedly arranged on the stabilizing platform 16, which can ensure that the positions of all the hydraulic cylinders 15 are stable, and further ensure that no matter how the float 23 moves, it can drive the piston of the hydraulic cylinder 15 to move, thereby improving the power generation efficiency of the oscillating float power generation mechanism.

[0033] The specific structure of the liquid distribution assembly is as follows: the liquid distribution assembly includes a plurality of distribution units corresponding to the hydraulic cylinder 15 one by one, and the distribution unit includes a high-pressure pipeline 28 and a low-pressure pipeline 38. One end of the high-pressure pipeline 28 is connected to the first position of the cylinder body, and one end of the low-pressure pipeline 38 is connected to the second position of the cylinder body, and the first position and the second position are respectively located on both sides of the piston. A high-pressure accumulator 29, a speed regulating valve 30 and a low-pressure accumulator 36 are arranged in sequence between the other end of the high-pressure pipeline 28 and the other end of the low-pressure pipeline 38. A kinetic energy output point is formed between the speed regulating valve 30 and the low-pressure accumulator 36. The kinetic energy output points of all distribution units are connected to a hydraulic motor 37 in common, and the hydraulic motor 37 is used to drive the liquid turbine generator 35. Because the first position and the second position are respectively located on both sides of the piston, no matter how the float 23 drives the piston to move, the liquid in the hydraulic cylinder 23 can be output to the liquid distribution assembly, and then the hydraulic motor 37 is driven to move by the liquid distribution assembly. During the movement of the hydraulic motor 37, the liquid turbine generator 35 is driven to move and generate the second electric energy. In the liquid distribution assembly, the high-pressure accumulator 29, the speed regulating valve 30 and the low-pressure accumulator 36 cooperate with each other to buffer the pressure on the liquid distribution assembly and the hydraulic motor 37 during the flow of the buffer liquid, prevent overload operation, and ensure the output stability of the liquid turbine generator 35.

[0034] In order to further improve the power generation efficiency of the oscillating float power generation mechanism, the distribution unit includes a hydraulic bridge circuit 27, and the hydraulic bridge circuit 27 is provided with a first input interface and a second input interface, the first input interface is used to connect the high-pressure pipeline 28, and the second input interface is used to connect the low-pressure pipeline 38. The hydraulic bridge circuit 27 specifically includes four one-way valves, namely a first one-way valve 31, a second one-way valve 32, a third one-way valve 33 and a fourth one-way valve 34, wherein the first one-way valve 31 and the fourth one-way valve 34 are a group, and the outlets of the first one-way valve 31 and the fourth one-way valve 34 form a first output interface and are connected to the oil inlet of the hydraulic motor 37, and the second one-way valve 32 and the third one-way valve 33 are a group, and the outlets of the second one-way valve 32 and the third one-way valve 33 form a second output interface and are connected to the oil outlet of the hydraulic motor 37.

[0035] By setting up the hydraulic bridge 27, during the up and down reciprocating motion of the piston, the liquid output from the hydraulic cylinder 15 on both sides of the piston can be integrated into the same direction of high-pressure liquid, and then transported to the high-pressure accumulator 29 for energy storage, and the flow is adjusted by the speed control valve 30, and stably input into the hydraulic motor 37 to drive the hydraulic motor 37 to operate; after the liquid is discharged from the oil outlet of the hydraulic motor 37, it is buffered by the low-pressure accumulator 36, and then returned to the hydraulic cylinder 15 through the low-pressure pipeline 38 to form a circulation, thereby realizing the continuous and efficient conversion of wave energy into electrical energy.

[0036] In one embodiment of the present invention, the hydraulic cylinders 15 can be divided into multiple groups, each group of hydraulic cylinders 15 has two hydraulic cylinders 15, and on the basis of all the hydraulic cylinders 15 being distributed in a ring shape, two hydraulic cylinders 15 symmetrical about the center line form a group. Each group of hydraulic cylinders 15 corresponds to a hydraulic motor 37 and a liquid turbine generator 35. Through this arrangement, the actions of the pistons in the two hydraulic cylinders 15 in the same group are opposite, and the two hydraulic cylinders 15 can drive the hydraulic motor 37 and the liquid turbine generator 35 more stably.

[0037] Furthermore, a top plate 14 may be fixedly disposed on the top of the oscillating float power generation cabin 12 , and the liquid distribution assembly may be fixedly disposed on the top plate 14 .

[0038] The electric energy conditioning mechanism may include components such as a current conditioning circuit, a filter circuit, an energy storage module and an inverter, which are conventional technologies in the field of wave energy power generation and will not be described in detail here.

[0039] The present invention further provides a wave energy power generation method. Based on the above-mentioned wave energy power generation device, the method includes S1 to S3.

[0040] S1. When seawater enters and exits the oscillating water column power generation cabin 10 and causes the gas in the cabin to flow, the air turbine generator 6 is used to absorb the energy of the gas in the cabin and convert it into the first electrical energy.

[0041] S2. When the wave-driven oscillating buoy power generation cabin 12 shakes and drives the float 23 to swing, the hydraulic cylinder 15 and the liquid distribution assembly absorb the energy of the float 23, and the liquid turbine generator 35 converts it into second electrical energy.

[0042] S3. Using the power conditioning mechanism to collect the first power and the second power to obtain total power, and outputting the total power to the outside.

[0043] The present invention also provides a floating breakwater, comprising a square box 1 floating on the sea surface, the bottom of the square box 1 is placed below the sea surface, and the bottom of the square box 1 is fixedly connected to a horizontal plate 3 through a plurality of columns 2, and at least one oscillating water column power generation cabin 10 and at least one oscillating float power generation cabin 12 are separated in the square box 1.

[0044] A bottom water inlet 5 is provided at the bottom of the oscillating water column power generation cabin 10 , and seawater enters the lower part of the oscillating water column power generation cabin 10 from the bottom water inlet 5 . An air turbine generator 6 is provided at the top of the oscillating water column power generation cabin 10 .

[0045] A float 23 and a plurality of hydraulic cylinders 15 are provided in the oscillating float power generation cabin 12. The piston of the hydraulic cylinder 15 is fixedly connected to a moving rod 18. The moving rod 18 extends to the outside of the cylinder body and is rotatably connected to a transmission rod 20. All transmission rods 20 are rotatably connected to a connecting platform 22. The float 23 is fixedly connected to the connecting platform 22. The cylinder bodies of all hydraulic cylinders 15 are commonly connected to a liquid turbine generator 35 through a liquid distribution assembly.

[0046] In the floating breakwater, the wave energy power generation device is integrated into the box 1. The box 1 plays a wave-breaking function on the one hand, and can realize wave energy power generation on the other hand, which can provide electric energy for the protected facilities and achieve the effect of energy saving. In addition, the integration of multiple structures with different functions maximizes the use of ocean space and wave resources, and reduces the space and infrastructure investment required for independent power generation devices and breakwaters. On the other hand, in the breakwater, by setting columns 2 and horizontal plates 3, part of the wave energy directly impacting the box 1 can be reflected and dissipated, thereby improving the wave-breaking performance.

[0047] The specific arrangement of the columns 2 is as follows: the horizontal plate 3 is rectangular, and a plurality of columns 2 are evenly arranged at the edge of the horizontal plate 3. Through this arrangement, a plurality of columns 2 form a fence structure at the edge of the horizontal plate 3, which can achieve the effect of improving the wave-proof performance in all directions.

[0048] The specific structure of the box 1 is as follows: a plurality of first partitions are fixedly arranged inside the box 1, and the plurality of first partitions enclose an oscillating float power generation cabin 12, and a plurality of second partitions are fixedly connected between the oscillating float power generation cabin 12 and the inner wall of the box 1, and the second partitions separate the space between the oscillating float power generation cabin 12 and the inner wall of the box 1 into at least one oscillating water column power generation cabin 10 and at least one buoyancy cabin 11. The buoyancy cabin 11 is used to ensure that the box 1 can float on the sea surface, and the buoyancy cabin 11 is filled with regulating gas, and a gas regulating valve 13 is arranged on the side wall of the buoyancy cabin 11.

[0049] The anchoring structure of the floating breakwater includes a plurality of anchor blocks 39 arranged on the seabed, the top of the anchor block 39 is fixedly connected or rotatably connected with a main cable 42, the main cable 42 extends upward to the side of the square box 1 and is connected to the square box 1 through a lifting ring 43, and a secondary cable 41 is connected to the middle of the main cable 42 through a connecting ring 40, and the secondary cable 41 extends upward to the bottom of the horizontal plate 3 and is connected to the horizontal plate 3 through the lifting ring 43. More specifically, there are 8 lifting rings 43 in total, and 4 main cables 42, secondary cables 41, connecting rings 40 and anchor blocks 39 are provided respectively, and the floating breakwater is anchored from different directions.

[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wave energy power generation device, characterized in that: It includes an oscillating water column power generation mechanism, an oscillating float power generation mechanism and an electric energy conditioning mechanism; The oscillating water column power generation mechanism comprises at least one oscillating water column power generation cabin (10), the lower part of the oscillating water column power generation cabin (10) being placed below the sea surface, a bottom water inlet (5) being provided at the bottom of the oscillating water column power generation cabin (10), seawater entering the lower part of the oscillating water column power generation cabin (10) from the bottom water inlet (5), and an air turbine generator (6) being provided at the top of the oscillating water column power generation cabin (10); The oscillating float power generation mechanism comprises at least one oscillating float power generation cabin (12) floating on the sea surface, wherein a float (23) and a plurality of hydraulic cylinders (15) are arranged in the oscillating float power generation cabin (12), wherein the piston of the hydraulic cylinder (15) is fixedly connected to a moving rod (18), wherein the moving rod (18) is rotatably connected to a transmission rod (20) after extending to the outside of the cylinder body, wherein all the transmission rods (20) are rotatably connected to a connecting platform (22), wherein the float (23) is fixedly connected to the connecting platform (22), and wherein the cylinder bodies of all the hydraulic cylinders (15) are connected to a liquid turbine generator (35) via a liquid distribution assembly; All of the oscillating water column power generation cabins (10) and the oscillating float power generation cabins (12) are fixedly connected; The electric energy conditioning mechanism is used to collect and transmit the electric energy generated by the air turbine generator (6) and the liquid turbine generator (35).

2. A wave energy power generation device as claimed in claim 1, characterized in that: A side water inlet (4) is provided at the lower side of the oscillating water column power generation cabin (10), and the side water inlet (4) is placed below the sea surface.

3. A wave energy power generation device as claimed in claim 1, characterized in that: A stabilizing platform (16) is fixedly disposed horizontally in the oscillating float power generation cabin (12); the stabilizing platform (16) is located above the connecting platform (22); a balancing channel (17) is provided in the middle of the stabilizing platform (16); and a cylinder body of the hydraulic cylinder (15) is fixedly disposed on the stabilizing platform (16).

4. A wave energy power generation device as claimed in claim 1, characterized in that: The liquid distribution assembly comprises a plurality of distribution units corresponding one to one with the hydraulic cylinders (15), the distribution units comprising a high-pressure pipeline (28) and a low-pressure pipeline (38), one end of the high-pressure pipeline (28) being connected to a first position of the cylinder body, and one end of the low-pressure pipeline (38) being connected to a second position of the cylinder body, and the first position and the second position being respectively located on both sides of the piston, and a high-pressure accumulator (29), a speed regulating valve (30) and a low-pressure accumulator (36) being arranged in sequence between the other end of the high-pressure pipeline (28) and the other end of the low-pressure pipeline (38), a kinetic energy output point being formed between the speed regulating valve (30) and the low-pressure accumulator (36), and the kinetic energy output points of all the distribution units being commonly connected to a hydraulic motor (37), and the hydraulic motor (37) being used to drive the liquid turbine generator (35).

5. A wave energy power generation device as claimed in claim 4, characterized in that: The distribution unit comprises a hydraulic bridge (27), wherein the hydraulic bridge (27) is provided with a first input interface and a second input interface, wherein the first input interface is used to connect to the high-pressure pipeline (28), and the second input interface is used to connect to the low-pressure pipeline (38).

6. A wave energy power generation method, characterized in that: Based on a wave energy power generation device as claimed in any one of claims 1 to 5, the method comprises the following steps: In the process of seawater entering and exiting the oscillating water column power generation cabin (10) and causing the gas in the cabin to flow, the air turbine generator (6) is used to absorb the energy of the gas in the cabin and convert it into first electrical energy; In the process of waves driving the oscillating float power generation cabin (12) to shake and drive the float (23) to swing, the hydraulic cylinder (15) and the liquid distribution assembly are used to absorb the energy of the float (23), and the liquid turbine generator (35) is used to convert it into second electrical energy; The electric energy conditioning mechanism is used to collect the first electric energy and the second electric energy to obtain total electric energy, and the total electric energy is output externally.

7. A floating breakwater, characterized in that: It comprises a square box (1) that is floated on the sea surface, the bottom of the square box (1) is placed below the sea surface, and the bottom of the square box (1) is fixedly connected to a horizontal plate (3) via a plurality of columns (2), and at least one oscillating water column power generation cabin (10) and at least one oscillating float power generation cabin (12) are separated in the square box (1); The bottom of the oscillating water column power generation cabin (10) is provided with a bottom water inlet (5), and seawater enters the lower part of the oscillating water column power generation cabin (10) through the bottom water inlet (5). The top of the oscillating water column power generation cabin (10) is provided with an air turbine generator (6); The oscillating float power generation cabin (12) is provided with a float (23) and a plurality of hydraulic cylinders (15); the piston of the hydraulic cylinder (15) is fixedly connected to a moving rod (18); the moving rod (18) extends to the outside of the cylinder body and is rotatably connected to a transmission rod (20); all the transmission rods (20) are rotatably connected to a connection platform (22); the float (23) is fixedly connected to the connection platform (22); and the cylinder bodies of all the hydraulic cylinders (15) are connected to a liquid turbine generator (35) via a liquid distribution assembly.

8. The floating breakwater according to claim 7, characterized in that: The horizontal plate (3) is rectangular, and a plurality of the upright posts (2) are evenly arranged at the edge of the horizontal plate (3).

9. The floating breakwater according to claim 7, characterized in that: A plurality of first partitions are fixedly arranged inside the square box (1), the plurality of first partitions enclosing the oscillating float power generation cabin (12), a plurality of second partitions are fixedly connected between the oscillating float power generation cabin (12) and the inner wall of the square box (1), the second partitions separate the space between the oscillating float power generation cabin (12) and the inner wall of the square box (1) into at least one oscillating water column power generation cabin (10) and at least one buoyancy cabin (11).

10. The floating breakwater according to claim 9, characterized in that: The buoyancy chamber (11) is filled with regulating gas, and a gas regulating valve (13) is provided on the side wall of the buoyancy chamber (11).

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