A water-level-adaptable energy-concentrating wave energy power generation system and its application method

Abstract

The present invention relates to the technical fields of marine engineering and renewable energy development and utilization, and discloses a water-level-adaptable energy-concentrating wave energy power generation system and its application method, wherein the wave energy power generation system includes multiple wave energy devices, each of which is composed of a wave energy capture device and a wave energy power generation device, the wave energy power generation device being mounted on the upper portion of the wave energy capture device, the wave energy convergence device being composed of multiple energy-concentrating plates, a plurality of connecting rods being fixedly connected to one side of the wave energy convergence device at one end of each of the connecting rods being fixed to one side of the wave energy convergence device, and a lifting and adjusting mechanism being configured with multiple pile legs. The water-level-adaptable energy-concentrating wave energy power generation system and its application method can increase the input wave energy level of the wave energy device by re-converging wave energy in a specific area, significantly improving the output power and conversion efficiency of the wave energy device, and avoiding the shielding effect produced by the wave energy device array.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering and renewable energy development and utilization, and in particular to a water-level adaptable energy-concentrating wave energy power generation system and an application method thereof. Background Art

[0002] Wave energy, a key component of ocean energy, is a green and renewable energy source that also contributes to the transformation of the energy mix. With abundant reserves in coastal and offshore areas, wave energy has broad potential for development. The power generation process of a wave energy device consists of three main stages: incident waves act on the wave energy device, causing it to move or entering its interior to form a moving water column, forming the capture stage. The air pressure generated by the movement of the device or the movement of the water column within it is then converted into mechanical energy through connecting rods or turbines, forming the energy conversion and transmission stage. Finally, a generator converts the mechanical energy into electrical energy, ultimately outputting it as electrical energy. However, the low wave energy flux density and significant variations in spatial distribution result in low efficiency and economical efficiency of existing wave energy devices. Furthermore, existing wave energy generators use a relatively single input wave energy source, absorbing only the energy of the incident waves. In areas with low energy flux density, they may even fail to generate electricity. Even arrayed wave energy devices cannot overcome these issues of low efficiency and economical efficiency. Furthermore, the shadowing effect between the power generation units in an array results in a significantly lower overall efficiency than a single wave energy device. Furthermore, the ocean's tidal range causes the water level to fluctuate, and most existing wave energy devices are fixed. Therefore, when the water level is too low, the waves cannot act on the wave energy device; when the water level is too high, the waves overwhelm the wave energy device, causing it to fail.

[0003] Based on the above problems, there is an urgent need to design a concentrated wave energy power generation system that can adjust its position according to the changes in tidal range, avoid the failure of wave energy devices, and avoid the shielding effect caused by the wave energy device array. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a water-level-adaptable energy-concentrating wave energy power generation system and its application method, which solves the problems that most existing wave energy power generation devices are fixed, and when the ocean tidal range causes the water surface to be low, the waves cannot act on the wave energy device; when the water surface is too high, the waves submerge the wave energy device, causing the wave energy device to fail; and the wave energy device has low output power and conversion efficiency due to the low wave energy flow density.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a water-level-adaptable energy-concentrating wave energy power generation system, comprising:

[0008] A plurality of wave energy devices, each of which is composed of a wave energy capture device and a wave energy power generation device, wherein the wave energy power generation device is installed on the upper part of the wave energy capture device;

[0009] A wave energy converging device, wherein the wave energy converging device is composed of a plurality of energy converging plates, a plurality of connecting rods are fixedly connected to one side of the wave energy converging device, one end of each of the connecting rods is fixed to one side of the wave energy converging device, and a plurality of the wave energy converging devices are arranged in an array in an opening area of ​​the wave energy converging device;

[0010] A lifting and adjusting mechanism, wherein the lifting and adjusting mechanism is configured with a plurality of pile legs, the side walls of the plurality of pile legs are commonly connected to a cross bar, and the lower ends of the pile legs are each provided with a base, and the lifting and adjusting mechanism is used to control the longitudinal position adjustment of the wave energy concentrating device;

[0011] A lifting frame, one side of the lifting frame is connected to the lifting and adjusting mechanism, and the other side of the lifting frame is equipped with a fixed frame, one side of the wave energy convergence device is installed on the fixed frame, and the upper part of the fixed frame is fixedly connected to a water surface monitoring device, and the water surface monitoring device controls the start and stop of the lifting and adjusting mechanism.

[0012] Preferably, a wave energy convergence device formed by sequentially splicing a plurality of the energy converging plates is parabolic in shape, two fixing slots are provided on one side of the wave energy convergence device, the fixing frame is clamped in the two fixing slots, a plurality of anchoring nails are fixedly connected in the fixing slots, a plurality of anchoring holes cooperating with the anchoring nails are provided on the side wall of the fixing frame, two limiting strips are provided on one side of the energy converging plates, and a plurality of rubber sheets are fixedly connected on one side of the fixing frame.

[0013] Preferably, one side of the fixing frame is rotatably connected to a plurality of elastic struts via a rotating shaft, and the ends of the plurality of elastic struts away from the fixing frame are all sleeved with fixing bolts through fixing holes. The side wall of the lifting frame is provided with a plurality of threaded holes, and the fixing bolt is connected to one of the threaded holes. The middle part of the fixing frame is rotatably connected to the side wall of the fixing frame via a main shaft.

[0014] Preferably, the elastic support rod includes an end head and a rectangular tube, one end of the end head is rotatably connected to the fixed frame through a rotating shaft, one end of the end head is fixedly connected to a rectangular rod, one end of the rectangular rod extends into the rectangular tube and is fixedly connected to a spring, one end of the spring is fixed in the rectangular tube, a strip hole is opened on the rod wall of the rectangular rod, a positioning column is sleeved in the strip hole, and the positioning column is fixed in the rectangular tube.

[0015] Preferably, one wave energy convergence device and a plurality of wave energy devices form a power generation unit, the wave energy capture device is an oscillating water column type wave energy capture device, and the wave energy power generation device is an oscillating water column type wave energy power generation device.

[0016] Preferably, the lifting adjustment mechanism includes a shell, which is fixed to the upper end of the lifting frame, and a transmission shaft is rotatably connected to the shell through a first sealed bearing, and a plurality of threaded portions are provided on the shaft wall of the transmission shaft, and the plurality of threaded portions are engaged with a worm gear, and the lower end of the shell is rotatably connected to a plurality of screw rods through a second sealed bearing, the upper end of the screw rod is fixedly connected to the lower end of the worm gear, and the rod walls of the plurality of screw rods are rotatably connected to a first bearing seat, and the first bearing seat is fixed to the side wall of the lifting frame by screws, and the pile leg is a tubular structure, and a threaded sleeve is threadedly connected to the rod wall of the screw rod, and the threaded sleeve is fixed to the inner edge of the upper end opening of the pile leg, the lower end of the screw rod extends into the pile leg and is rotatably connected to a cylinder through a ball bearing, and the upper end of the shell is equipped with a power mechanism that drives the transmission shaft to rotate.

[0017] Preferably, the power mechanism includes a first bevel gear, which is fixed on the shaft wall of the transmission shaft, and a second bevel gear is meshed with the first bevel gear on one side. The upper end of the housing is fixedly connected to a driving motor, and the output shaft of the driving motor is connected to a connecting shaft through a coupling. The shaft wall of the connecting shaft is rotatably connected to the upper end of the housing through a ball bearing, and the lower end of the connecting shaft is coaxially fixedly connected to the upper end of the second bevel gear. A plurality of second bearing seats are rotatably connected to the shaft wall of the transmission shaft, and the second shaft seat is fixed in the housing.

[0018] The present invention also provides an application method of a water level-adaptable concentrated wave energy power generation system, comprising the following steps:

[0019] S1. Using a water surface monitoring device to monitor changes in sea level height, the device is used to control the start-up of the power mechanism. The drive motor drives the lifting and adjusting mechanism through a coupling to move the lifting frame and the fixedly connected wave energy concentrating device to a position at the water surface height;

[0020] S2. The wave energy converging device converges wave energy at a specific location within the opening area of ​​the wave energy converging device by superimposing the waves;

[0021] S3. Arranging wave energy devices at specific wave energy convergence locations according to wave energy levels, so that the converged wave energy is absorbed by the wave energy capture device and further converted by the wave energy power generation device fixedly connected to the upper portion of the wave energy capture device;

[0022] S4. The hydrodynamic effect between the wave energy convergence device and the wave energy device causes the wave energy convergence process to evolve and converge wave energy at a new specific location;

[0023] S5. At the new specific wave energy convergence location, continue to arrange the wave energy device according to the wave energy level, so that the converged wave energy is absorbed by the wave energy capture device, and then converted by the wave energy power generation device fixedly connected to the upper part of the wave energy capture device.

[0024] Preferably, in said S3, under the joint action of the first wave energy device and the wave energy convergence device 2, the waves generate a new wave energy convergence position, and are absorbed by the second wave energy device arranged there, thereby repeating steps S4 to S5.

[0025] Preferably, the driving motor drives the rotation of the lifting and adjusting mechanism through a coupling;

[0026] Drive motor forward:

[0027] In step S1, when the sea level drops, the driving motor rotates forward, driving the lifting adjustment mechanism to rotate forward through the coupling, so that the lifting frame drives the wave energy gathering device to descend to the sea level position;

[0028] Drive motor reverse:

[0029] In step S1, when the sea level rises, the driving motor rotates in reverse, and drives the lifting adjustment mechanism to rotate forward through the coupling, so that the lifting frame drives the wave energy gathering device to descend to the sea level position.

[0030] (3) Beneficial effects

[0031] Compared with the prior art, the present invention provides a water-level-adaptable energy-concentrating wave energy power generation system and its application method, which have the following beneficial effects:

[0032] 1. Through the superposition and convergence of waves by the wave energy convergence device, wave energy is converged at a specific location, significantly improving the level of wave energy captured and converted when the wave energy device and its array are arranged, greatly improving the power output and conversion efficiency of the wave energy device, and at the same time avoiding the shielding effect when the wave energy device array is arranged.

[0033] 2. A lifting and adjusting mechanism is provided at the rear of the wave energy convergence device, so that the position of the concentrated wave energy power generation system can be adjusted when a tidal range occurs, so that the concentrated wave energy power generation system is not affected by changes in the tidal range and maintains the wave energy power generation function under water surface height conditions in any season and time, thereby avoiding failure of the concentrated wave energy power generation system and reducing the construction and maintenance costs of the wave energy convergence device.

[0034] 3. The wave energy gathering device is composed of multiple energy gathering plates. The number and installation position of the energy gathering plates can be adjusted according to actual sea conditions, thereby increasing the controllability of the wave energy gathering effect of the wave energy gathering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of a water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the structure of a water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention. Figure 2 ;

[0037] Figure 3 This is a schematic structural diagram of a wave energy converging device and a fixing frame in a water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention;

[0038] Figure 4 This is a schematic structural diagram of an elastic support rod and a lifting frame in a water-level-adaptable energy-focusing wave energy power generation system proposed by the present invention;

[0039] Figure 5 This is a rendering of the multi-angle adjustment effect of the lifting frame, elastic support rod and wave energy focusing device in the water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention;

[0040] Figure 6 This is a structural schematic diagram of a lifting and adjusting mechanism in a water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention;

[0041] Figure 7 The array effect of the wave energy converging device in the water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention Figure 1 ;

[0042] Figure 8 The array effect of the wave energy converging device in the water level-adaptable energy-concentrating wave energy power generation system proposed by the present invention Figure 2 ;

[0043] Figure 9 This is a rendering of various array arrangements of wave energy devices on a wave energy converging device in a water level-adaptable energy-focusing wave energy power generation system proposed by the present invention.

[0044] In the figure: 1. Pile leg; 2. Wave energy convergence device; 3. Energy gathering plate; 4. Wave energy capture device; 5. Wave energy power generation device; 6. Connecting rod; 7. Shell; 8. Drive motor; 9. Lifting frame; 10. Water surface monitoring device; 11. Fixed frame; 12. Cross bar; 13. Base; 14. End; 15. Rectangular tube; 16. Limiting strip; 17. Anchor nail; 18. Fixing slot; 19. Rubber sheet; 20. Rectangular rod; 21. Positioning column; 22. Spring; 23. Screw; 24. Threaded sleeve; 25. Worm gear; 26. First bevel gear; 27. Second bevel gear; 28. Threaded part; 29. ​​Drive shaft; 30. Cylinder. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0046] Example 1:

[0047] Refer to the attached Figure 1-9 A water-level-adaptable energy-concentrating wave energy power generation system includes a plurality of wave energy devices, each of which is composed of a wave energy capture device 4 and a wave energy power generation device 5. The wave energy power generation device 5 is installed on the upper portion of the wave energy capture device 4. The wave energy device adopts an oscillating water column type wave energy capture device 4 and wave energy power generation device 5;

[0048] The main design points of this system are:

[0049] The wave energy converging device 2 is composed of a plurality of energy converging plates 3 spliced ​​together. The wave energy converging device 2 formed by the plurality of energy converging plates 3 spliced ​​in sequence is parabolic. Two fixing slots 18 are provided on one side of the wave energy converging device 2. The fixing frame 11 is clamped in the two fixing slots 18. A plurality of anchor nails 17 are fixedly connected in the fixing slots 18. The side wall of the fixing frame 11 is provided with a plurality of anchor holes that cooperate with the anchor nails 17. Two limiting strips 16 are provided on one side of the energy converging plate 3. A plurality of rubber sheets 19 are fixedly connected to one side of the fixing frame 11. The rubber sheet 19 is located between two adjacent rectangular plates 3. A plurality of connecting rods 6 are fixedly connected to one side of the wave energy converging device. One end of the plurality of connecting rods 6 is fixed to one side of the wave energy converging device 2. An array of multiple wave energy devices is arranged in the opening area of ​​the wave energy converging device 2. A wave energy converging device 2 and a plurality of wave energy devices constitute a power generation unit. The wave energy capture device 4 is an oscillating water column type wave energy capture device 4. The wave energy power generation device 5 is an oscillating water column type wave energy power generation device 5.

[0050] After the incident wave moves to the wall surface of the wave energy converging device 2, it generates a reflected wave with a different direction from the incident wave. Based on the reflection effect of the wave energy converging device 2 on the wave, the parabolic shape of the wave energy converging device 2 is utilized to generate reflected waves in multiple directions, thereby moving in the opposite direction of the incident wave and superimposing them at a specific position, so that the wave energy is converged at this position. The number and installation position of the energy converging plates 3 can be adjusted according to the actual sea conditions. When the wave energy flow density of the actual sea conditions is low, the installation position of the energy converging plates 3 is adjusted and different curvatures are designed during production, so that the convexity of the parabolic wave energy converging device 2 composed of the energy converging plates 3 is reduced, thereby improving The wave energy convergence effect is that when the wave energy flow density of the actual sea conditions is high, the number of energy-gathering plates 3 is increased, so that the chord length of the parabolic wave energy convergence device 2 composed of the energy-gathering plates 3 is increased, thereby increasing the convergence position of the wave energy. At the specific position where the wave energy converges, multiple wave energy devices are fixedly connected to the wave energy convergence device 2 through the connecting rod 6, so that the wave energy in multiple directions after convergence can be captured and absorbed by the oscillating water column type wave energy capture device 4, and then converted into electrical energy by the oscillating water column type wave energy power generation device 5, which significantly improves the power output and conversion efficiency of the wave energy device and avoids the shielding effect between multiple wave energy devices in the array.

[0051] The lifting and adjusting mechanism is equipped with multiple pile legs 1, and the side walls of the multiple pile legs 1 are commonly connected to a cross bar 12. The lower ends of the pile legs 1 are each provided with a base 13, which is installed on the seabed. The lifting and adjusting mechanism is used to control the longitudinal position adjustment of the wave energy convergence device 2. One side of the lifting frame 9 is connected to the lifting and adjusting mechanism, and the other side of the lifting frame 9 is installed with a fixed frame 11. One side of the wave energy convergence device 2 is installed on the fixed frame 11. The upper part of the fixed frame 11 is fixedly connected to a water surface monitoring device 10, which controls the start and stop of the lifting and adjusting mechanism.

[0052] Since the opening area of ​​the wave energy convergence device 2 is the wave energy convergence area, the water surface height in this area changes dramatically and cannot accurately reflect the changes in the tidal range. Therefore, the water surface monitoring device 10 monitors the changes in the water surface height on the back side of the opening area of ​​the wave energy convergence device 2. According to the changes in the tidal range of the sea surface, when the water surface monitoring device 10 detects that the water surface on the back side of the opening area of ​​the wave energy convergence device 2 has dropped, it controls the start of the power mechanism, drives the motor 8 to rotate forward, and drives the lifting adjustment mechanism to rotate forward through the coupling, so that the lifting frame 9 drives the wave energy convergence device 2 and the wave energy device to descend synchronously to the sea level position. After the descent is completed, the water surface detection device 10 controls the stop of the power mechanism; when the water surface monitoring device 10 detects that the water surface on the back side of the opening area of ​​the wave energy convergence device 2 has risen, it controls the start of the power mechanism, drives the motor 8 to rotate reversely The lifting and lowering mechanism is reversed through the coupling, so that the lifting frame 9 drives the wave energy gathering device 2 and the wave energy gathering device to rise synchronously to the sea level position. After the rise is completed, the water surface detection device 10 controls the power mechanism to stop; after the longitudinal position adjustment of the wave energy gathering device 2 is completed according to the change of the tidal range, the wave energy gathering device 2 continues to gather wave energy at a specific position, so that the multiple wave energy devices arranged at the position can generate wave energy, thereby avoiding the situation where the water surface is too low so that the waves cannot act on the wave energy device, resulting in the wave energy being unable to be captured, absorbed and converted by the wave energy capture device 4 and the wave energy power generation device 5; or the water surface is too high so that the waves submerge the wave energy device, resulting in the wave energy device failing to work, while reducing the construction and maintenance costs of the wave energy gathering device 2.

[0053] like Figure 9 As shown, the parabolic structure of the wave energy converging device 2 designed in this technical solution has two types;

[0054] First, an asymmetric parabolic structure is adopted. When an asymmetric parabolic structure is adopted, multiple wave energy devices are still arranged according to the wave energy convergence focus of the opening area of ​​the wave energy convergence device 2, and can be uniformly adjusted according to needs;

[0055] Secondly, a symmetrical parabolic structure is adopted. According to the characteristics of the parabolic shape, there is a convergence focus. The focus is the place with the best energy concentration effect. The first wave energy device is arranged here. Since the parabolic shape is symmetrical, but there is only one focus, there are two wave energy devices arranged at other energy concentration positions. They are all arranged symmetrically with the symmetry axis of the wave energy concentration device 2. Except for the wave energy device at the focus position, the remaining wave energy devices are all symmetrically arranged according to the parabolic structure. In addition, the chord length and curvature of the wave energy concentration device 2 can be designed by adjusting the number and curvature of the energy concentration plates 3 to achieve controllable and adjustable characteristics of the wave energy concentration effect according to the wave energy flow density under different sea conditions. Then, the number of wave energy devices 2 can be adjusted and arranged according to the richness of wave energy and the wave energy concentration effect, thereby maximizing the economy of the wave energy power generation system.

[0056] Obviously, the wave energy converging device 2 can be regularly arranged on the seabed in a matrix form, such as Figure 7 and Figure 8 As shown, similarly, they can also be arranged individually or in multiple irregular arrangements according to site conditions (not shown in the drawings).

[0057] This technical solution achieves the convergence of wave energy at a specific position through the superposition and convergence of waves by the wave energy convergence device 2, significantly improving the level of wave energy captured and converted when the wave energy device and its array are arranged, greatly improving the power output and conversion efficiency of the wave energy device, and at the same time avoiding the shielding effect when the wave energy device array is arranged. Secondly, a lifting and adjusting mechanism is provided at the rear of the wave energy convergence device 2. When the tidal range occurs, the position of the energy-gathering wave energy power generation system can be adjusted, so that the energy-gathering wave energy power generation system is not affected by the change of the tidal range, and the wave energy power generation function is maintained under the water surface height conditions of any season and time, thereby avoiding the failure of the energy-gathering wave energy power generation system and reducing the construction and maintenance costs of the wave energy convergence device. The wave energy convergence device 2 is composed of a plurality of spliced ​​energy-gathering plates 3. The number and installation position of the energy-gathering plates 3 can be adjusted according to actual sea conditions, thereby increasing the controllability of the wave energy convergence effect of the wave energy convergence device 2.

[0058] Example 2: Based on Example 1, the difference is that;

[0059] Refer to the attached Figure 4-Figure 5One side of the fixed frame 11 is rotatably connected to a plurality of elastic struts through a rotating shaft, and the ends of the plurality of elastic struts away from the fixed frame 11 are all sleeved with fixing bolts through fixing holes. The side wall of the lifting frame 9 is provided with a plurality of threaded holes, and the fixing bolt is connected to one of the threaded holes. The middle part of the fixed frame 11 is rotatably connected to the side wall of the fixed frame 11 through the main shaft. The elastic strut includes an end head 14 and a rectangular tube 15. One end of the end head 14 is rotatably connected to the fixed frame 11 through a rotating shaft. One end of the end head 14 is fixedly connected to a rectangular rod 20. One end of the rectangular rod 20 extends into the rectangular tube 15 and is fixedly connected to a spring 22. One end of the spring 22 is fixed in the rectangular tube 15. A strip hole is provided on the rod wall of the rectangular rod 20. A positioning column 21 is sleeved in the strip hole, and the positioning column 21 is fixed in the rectangular tube 15.

[0060] The size of the spring 22 is recommended to be a compression spring with a free length of 50-60 cm, an outer diameter of 20-25 cm, and a wire diameter of 2.5-3.5 cm.

[0061] When the wave energy convergence device 2 in front of the fixed frame 11 is impacted by larger waves, the spring 22 can have a certain amount of expansion and contraction between the rectangular rod 20 and the rectangular tube 15. The expansion and contraction amount depends on the strip hole on the rectangular rod 20, and the expansion and contraction range is 0-10 cm. At the same time, in order to cope with the impact of smaller waves, the spring 22 needs to be compressed by 2-4 cm of free length during assembly. In this way, after the spring 22 is compressed, small waves cannot impact the wave energy convergence device 2 to cause displacement. When larger waves impact, since the compression length of the spring 22 is limited (i.e., within 10 cm), after reaching the compression limit, the elastic support is automatically converted into a rigid support, so that the wave energy convergence device 2 can have a certain buffering and pressure resistance, and the possibility of damage caused by wave impact is minimized.

[0062] like Figure 5 As shown, when the rectangular tube 15 is installed in threaded holes at different positions on the lifting frame 9 by fixing bolts, multi-angle adjustment can be achieved between the lifting frame 9, the wave energy convergence device 2 and the fixing frame 11, so that the angle of the wave energy convergence device 2 can be fine-tuned during laying.

[0063] Example 3: Based on Example 1, the difference is that;

[0064] Refer to the attached Figure 6The lifting and lowering adjustment mechanism includes a housing 7, which is fixed to the upper end of the lifting frame 9. A transmission shaft 29 is rotatably connected to the housing 7 through a first sealed bearing. A plurality of threaded portions 28 are provided on the shaft wall of the transmission shaft 29. The plurality of threaded portions 28 are all engaged with a worm gear 25. The lower end of the housing 7 is rotatably connected to a plurality of screw rods 23 through a second sealed bearing. The rod walls of the plurality of screw rods 23 are all rotatably connected to a first bearing seat. The first bearing seat is fixed to the side wall of the lifting frame 9 by screws. The upper end of the screw rod 23 is fixedly connected to the lower end of the worm gear 25. The pile leg 1 is a tubular structure. A threaded sleeve 24 is threadedly connected to the rod wall of the screw rod 23. The threaded sleeve 24 is fixed to the inner edge of the upper end opening of the pile leg 1. The lower end of the screw rod 23 extends into the pile leg 1 and is rotatably connected to a cylinder 30 through a ball bearing. The upper end of the housing 7 is equipped with a power mechanism that drives the transmission shaft 29 to rotate.

[0065] The power mechanism includes a first bevel gear 26, which is fixed on the shaft wall of the transmission shaft 29. A second bevel gear 27 is engaged with one side of the first bevel gear 26. The upper end of the housing 7 is fixedly connected to the drive motor 8. The output shaft of the drive motor 8 is connected to the connecting shaft through a coupling. The shaft wall of the connecting shaft is rotatably connected to the upper end of the housing 7 through a ball bearing. The lower end of the connecting shaft is coaxially fixedly connected to the upper end of the second bevel gear 27. A plurality of second bearing seats are rotatably connected to the shaft wall of the transmission shaft 29, and the second shaft seats are fixed in the housing 7.

[0066] When the sea conditions change, the control host (not shown in the figure) controls the drive motor 8 to rotate the connecting shaft through the electrical signal monitored by the water surface monitoring device 10. This technology has been widely used in life and is already known to those skilled in the art, so it will not be described in detail. When the connecting shaft rotates, it drives the second bevel gear 27 to rotate the first bevel gear 26. When the first bevel gear 26 rotates, it drives the transmission shaft 29 to rotate the spiral portion 28. When the spiral portion 28 rotates, it drives the worm gear 25 to rotate the screw rod 23. When the screw rod 23 rotates in the threaded sleeve 24, the interaction between the threads is used to move the screw rod 23. In this way, the screw rod 23 can be used to drive the shell 7 to move the lifting frame 9 and the wave energy convergence device 2 in the longitudinal direction. In addition, the screw rod 23 and the threaded sleeve 24, as well as the spiral portion 28 and the worm gear 25, have interlocking characteristics, so that the lifting and adjusting device can have a self-locking characteristic.

[0067] The application method of this power generation system is:

[0068] S1. Using the water surface monitoring device 10 to monitor changes in the sea level, the device is used to control the start of the power mechanism. The driving motor 8 drives the lifting and adjusting mechanism through the coupling to move the lifting frame 9 and the fixedly connected wave energy concentrating device 2 to a position at the water level.

[0069] S2. The wave energy converging device 2 converges wave energy at a specific location within the opening area of ​​the wave energy converging device 2 by superimposing the waves.

[0070] S3. Arrange wave energy devices at specific wave energy convergence locations according to wave energy levels, so that the converged wave energy is absorbed by the wave energy capture device 4 and further converted by the wave energy power generation device 5 fixedly connected to the upper portion of the wave energy capture device 4;

[0071] S4, the hydrodynamic effect between the wave energy convergence device 2 and the wave energy device causes the wave energy convergence process to evolve and converge wave energy at a new specific location;

[0072] S5. At the new specific wave energy convergence location, continue to arrange the wave energy devices according to the wave energy level, so that the converged wave energy is absorbed by the wave energy capture device 4, and then converted by the wave energy power generation device 5 fixedly connected to the upper part of the wave energy capture device 4.

[0073] During step S3, the wave generates a new wave energy convergence position under the combined action of the first wave energy device and the wave energy convergence device 2, and is absorbed by the second wave energy device arranged there, thereby repeating steps S4 to S5.

[0074] When the sea level drops, the drive motor 8 rotates forward, driving the lifting and adjusting mechanism to rotate forward through the coupling, so that the lifting frame 9 drives the wave energy gathering device 2 to descend to the sea level position. When the sea level rises, the drive motor 8 rotates reversely, driving the lifting and adjusting mechanism to rotate forward through the coupling, so that the lifting frame 9 drives the wave energy gathering device 2 to descend to the sea level position.

[0075] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0076] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water level adaptable concentrated wave energy power generation system, characterized in that: include: A plurality of wave energy devices, each of the plurality of wave energy devices being composed of a wave energy capture device (4) and a wave energy power generation device (5), wherein the wave energy power generation device (5) is installed on the upper portion of the wave energy capture device (4); A wave energy convergence device (2), the wave energy convergence device (2) being composed of a plurality of energy convergence plates (3) spliced ​​together, a plurality of connecting rods (6) being fixedly connected to one side of the wave energy convergence device, one end of each of the plurality of connecting rods (6) being fixed to one side of the wave energy convergence device (2), and an array of the plurality of wave energy convergence devices being arranged in an opening area of ​​the wave energy convergence device (2); A lifting and adjusting mechanism, wherein the lifting and adjusting mechanism is configured with a plurality of pile legs (1), the side walls of the plurality of pile legs (1) are commonly connected to a crossbar (12), the lower ends of the pile legs (1) are each provided with a base (13), and the lifting and adjusting mechanism is used to control the longitudinal position adjustment of the wave energy convergence device (2); A lifting frame (9), one side of the lifting frame (9) is connected to a lifting and regulating mechanism, a fixing frame (11) is installed on the other side of the lifting frame (9), one side of the wave energy convergence device (2) is installed on the fixing frame (11), and a water surface monitoring device (10) is fixedly connected to the upper part of the fixing frame (11), and the water surface monitoring device (10) controls the start and stop of the lifting and regulating mechanism; One side of the fixing frame (11) is rotatably connected to a plurality of elastic struts via a rotating shaft, and one end of the plurality of elastic struts away from the fixing frame (11) is sleeved with a fixing bolt via a fixing hole. The side wall of the lifting frame (9) is provided with a plurality of threaded holes, and the fixing bolts can be connected to the threaded holes at different positions. The middle part of the lifting frame (9) is rotatably connected to the side wall of the fixing frame (11) via a main shaft. The elastic struts include an end head (14) and a rectangular tube (15). One end of the end head (14) is rotatably connected to the fixing frame (11) via a rotating shaft. The end head (14) is fixedly connected to a rectangular rod (20). One end of the rectangular rod (20) extends into the rectangular tube (15) and is fixedly connected to a spring (22). One end of the spring (22) is fixed in the rectangular tube (15). A strip hole is provided on the rod wall of the rectangular rod (20). A positioning column (21) is sleeved in the strip hole. The positioning column (21) is fixed in the rectangular tube (15).

2. The water level adaptable concentrated wave energy power generation system according to claim 1, characterized in that: The wave energy convergence device (2) formed by sequentially splicing a plurality of the energy convergence plates (3) is parabolic in shape. Two fixing slots (18) are provided on one side of the wave energy convergence device (2). The fixing frame (11) is clamped in the two fixing slots (18). A plurality of anchoring nails (17) are fixedly connected in the fixing slots (18). A plurality of anchoring holes cooperating with the anchoring nails (17) are provided on the side wall of the fixing frame (11). Two limiting clips (16) are provided on one side of the energy convergence plate (3). A plurality of rubber sheets (19) are fixedly connected to the other side of the fixing frame (11).

3. The water level adaptable concentrated wave energy power generation system according to claim 1, characterized in that: One wave energy convergence device (2) and a plurality of wave energy devices form a power generation unit, the wave energy capture device (4) is an oscillating water column type wave energy capture device (4), and the wave energy power generation device (5) is an oscillating water column type wave energy power generation device (5).

4. The water level adaptable concentrated wave energy power generation system according to claim 1, characterized in that: The lifting and adjusting mechanism comprises a housing (7), the housing (7) being fixed to the upper end of the lifting frame (9), a transmission shaft (29) being rotatably connected in the housing (7) via a first sealed bearing, a plurality of threaded portions (28) being provided on the shaft wall of the transmission shaft (29), and a plurality of the threaded portions (28) being engaged with a worm gear (25), a plurality of screw rods (23) being rotatably connected to the lower end of the housing (7) via a second sealed bearing, a first bearing seat being rotatably connected to the rod wall of the plurality of screw rods (23), and the first bearing seat The screw rod (23) is fixed to the side wall of the lifting frame (9) by screws, and the upper end of the screw rod (23) is fixedly connected to the lower end of the worm wheel (25). The pile leg (1) is a tubular structure. The screw rod (23) is threadedly connected to a threaded sleeve (24). The threaded sleeve (24) is fixed to the inner edge of the upper opening of the pile leg (1). The lower end of the screw rod (23) extends into the pile leg (1) and is rotatably connected to a cylinder (30) through a ball bearing. The upper end of the housing (7) is equipped with a power mechanism for driving the transmission shaft (29) to rotate.

5. The water level adaptable concentrated wave energy power generation system according to claim 4, characterized in that: The power mechanism includes a first bevel gear (26), the first bevel gear (26) is fixed on the shaft wall of the transmission shaft (29), a second bevel gear (27) is meshed on one side of the first bevel gear (26), the upper end of the housing (7) is fixedly connected to a drive motor (8), the output shaft of the drive motor (8) is connected to a connecting shaft through a coupling, the shaft wall of the connecting shaft is rotatably connected to the upper end of the housing (7) through a ball bearing, the lower end of the connecting shaft is coaxially fixedly connected to the upper end of the second bevel gear (27), a plurality of second bearing seats are rotatably connected to the shaft wall of the transmission shaft (29), and the second bearing seats are fixed in the housing (7).

6. An application method of the water level adaptable concentrated wave energy power generation system according to claim 5, characterized in that: The following steps are involved: S1. Using a water surface monitoring device (10) to monitor changes in the sea surface height, the device is used to control the start-up of the power mechanism, and the driving motor (8) drives the lifting and adjusting mechanism through the coupling, so that the lifting frame (9) and the wave energy gathering device (2) move to a position at the sea surface height; S2, the wave energy convergence device (2) converges wave energy at a specific position within the opening area of ​​the wave energy convergence device (2) by superimposing the waves; S3. Arrange the wave energy device at a specific wave energy convergence location according to the wave energy level, so that the converged wave energy is absorbed by the wave energy capture device (4) and further converted by the wave energy power generation device (5) fixedly connected to the upper part of the wave energy capture device (4); S4, the hydrodynamic effect between the wave energy convergence device (2) and the wave energy device causes the wave energy convergence process to evolve and converge the wave energy at a new specific location; S5. At the new specific wave energy convergence position, the wave energy device is further arranged according to the wave energy level, so that the converged wave energy is absorbed by the wave energy capture device (4) and then converted by the wave energy power generation device (5) fixedly connected to the upper part of the wave energy capture device (4).

7. The application method of the water level adaptable concentrated wave energy power generation system according to claim 6, characterized in that: In step S3, the waves generate a new wave energy convergence position under the joint action of the first wave energy device and the wave energy convergence device (2); the wave energy at the new wave energy convergence position is absorbed by the second wave energy device arranged there, thereby repeating steps S4 to S5.

8. The application method of the water level adaptable concentrated wave energy power generation system according to claim 6, characterized in that: In step S1, when the sea level drops, the driving motor (8) rotates forward, causing the lifting frame (9) to drive the wave energy gathering device (2) to drop to the sea level position; In step S1, when the sea level rises, the driving motor (8) is reversed, so that the lifting frame (9) drives the wave energy gathering device (2) to rise to the sea level position.

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