Wave energy power generation device

Abstract

The invention relates to the technical field of ocean power generation, and discloses a wave power generation device which comprises a sealed shell, a supporting guide rod, a mounting rod and a pre-installed anchor, the supporting guide rod and the mounting rod are arranged in the vertical direction, and the bottom of the mounting rod is connected with the pre-installed anchor through a connecting piece; the bottom end of the supporting guide rod is detachably installed on the top of the installation rod, the top end of the supporting guide rod is inserted into the shell, the shell can be arranged in a sliding mode in the length extending direction of the supporting guide rod, the shell is of an eggshell type structure in appearance, and a power generation device is installed in the shell. According to the wave energy power generation device, kinetic energy of sea waves and wave energy of other water surfaces are fully utilized, vertical or horizontal movement of the sea waves is converted into rotation movement in a mechanism, the generator set in the buoy is driven to convert the kinetic energy into electric energy, and conversion of the kinetic energy and the electric energy is achieved as long as the waves are generated. The power conversion efficiency of the whole device is high, the applicability is high, and the application range is wider.

Description

Technical Field

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

[0002] Wave energy is a specific form of ocean energy and one of the most important energy sources in ocean energy. It has many advantages such as safety, pollution-free, large reserves, wide distribution, and renewable. The development and utilization of wave energy resources is very important to alleviate the energy crisis and reduce environmental pollution.

[0003] Wave energy is a specific form of ocean energy and one of the most important energy sources in ocean energy. Its development and utilization are very important to alleviate the energy crisis and reduce environmental pollution.

[0004] Existing ocean power generation systems all use large equipment, such as wave power generation using large turbine generators. Such equipment is bulky, costly, and has strict requirements on terrain. Restricted by factors such as coastline terrain and coastal protection, the utilization rate of wave energy is low, which is not conducive to improving the efficiency of ocean wave power generation. Therefore, a wave energy power generation device is proposed to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wave energy power generation device, which improves the utilization rate of wave energy and improves the efficiency of ocean wave power generation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wave energy power generation device, comprising a sealed shell, a support guide rod, a mounting rod and a pre-installed anchor, wherein the support guide rod and the mounting rod are both arranged in a vertical direction, the bottom of the mounting rod is connected to the pre-installed anchor through a connecting piece, the bottom end of the support guide rod is detachably mounted on the top of the mounting rod, and the top end is inserted into the shell, the shell can be slidably arranged along the length extension direction of the support guide rod, the outer shape of the shell is an "eggshell" structure, and a power generation device is installed inside the shell.

[0007] As a specific embodiment, the power generation device includes a circular platform, a gear rack plate, a hydraulic rod, a guide rod and a generator. The circular platform is fixedly installed in a shell, the gear rack plate is installed below the circular platform and connected to the circular platform through a hydraulic rod, the bottom end of the hydraulic rod is connected to the rack of the gear rack plate, and the top end is connected to the bottom surface of the circular platform, the guide rod is vertically passed through the circular platform and fixedly connected to the gear rack plate, the guide rod, the circular platform and the gear rack plate are coaxially arranged, and the bottom of the gear rack plate is fixedly installed on the top of the supporting guide rod; the circular platform can be raised and lowered along the length extension direction of the guide rod with the shell, and the generator is installed on the gear rack plate.

[0008] As a specific implementation, a sleeve is fixedly provided on the bottom surface of the circular platform, and the sleeve is arranged coaxially with the guide rod. A coil I is arranged in the sleeve, and a magnetic material is arranged on the surface of the guide rod. When the sleeve is lifted or lowered along the guide rod along with the circular platform, the coil I in the sleeve cuts the magnetic material on the guide rod to generate electrical energy.

[0009] As a specific implementation, there are multiple racks on the gear rack disk, which are evenly spaced along the circumferential direction of the gear rack disk. The rack can be slid along the radial direction of the gear rack disk. The hydraulic rod and the rack correspond one-to-one in number and position, and the bottom end of the hydraulic rod is connected to the top surface of the rack; the gear and the rack correspond one-to-one in number and position, and the sliding of the rack drives the gear meshing with it to rotate, and a generator is installed under each of the gears.

[0010] As a specific implementation, a mounting block with a hollow inner cavity is fixedly provided on the gear rack disk, and the mounting block corresponds to the rack in position and quantity. The mounting block is located on the outside of the rack, and a through hole is provided on the side of the mounting block facing the rack. One end of the rack is slidably inserted into the inner cavity of the mounting block through the through hole, and the outer side surface of one end of the rack facing the mounting block is wrapped with magnetic steel, and the mounting block is filled with coil II, and the axial centerline direction of coil II is perpendicular to the axial centerline direction of the rack.

[0011] As a specific implementation manner, the bottom end of the mounting rod is connected to the pre-installed anchor via a ball joint.

[0012] As a specific implementation, the shell is made of carbon fiber material.

[0013] As a specific implementation, a sealing plate is provided at the bottom of the shell, and the sealing plate is slidably sleeved on the support guide rod, and the shell is slidably provided along the axial direction of the support guide rod through the sealing plate.

[0014] As a specific implementation manner, a lightning rod is installed on the top of the shell, a hatch cover is opened on the outer side of the shell, the hatch cover is located above the circular platform, and a ladder is arranged inside the hatch cover.

[0015] Compared with the prior art, the present invention provides a wave energy power generation device having the following beneficial effects: 1) The wave energy power generation device of the present application utilizes the kinetic energy of ocean waves and the wave energy of other water surfaces to convert the vertical or horizontal movement of ocean waves into rotational movement within the mechanism, driving the generator set within the buoy to convert it into electrical energy. As long as waves are generated, the conversion of kinetic energy and electrical energy is achieved. The power conversion efficiency of the entire device is high, and the applicability is high, and the application places are more extensive.

[0016] 2) The wave energy power generation device, by designing the shell structure to be similar to an "eggshell" shape, can effectively transmit pressure to the surroundings and disperse the pressure on the entire shell surface, ensuring that the entire device can withstand the impact of waves and seawater pressure while also having a certain strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a wave energy power generation device proposed by the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of a wave energy power generation device proposed by the present invention; Figure 3 A schematic diagram of a generator connection structure of a wave energy power generation device proposed by the present invention; Figure 4 It is a schematic diagram of the internal structure of the mounting block in the present invention.

[0018] In the figure: 1. Lightning rod; 2. Ladder; 3. Shell; 4. Circular platform; 5. Hydraulic rod; 6. Guide rod; 7. Gear rack; 8. Generator; 9. Support rod; 10. Sealing plate; 11. Flange; 12. Support guide rod; 13. Mounting rod; 14. Hinge seat; 15. Sleeve; 16. Coil I; 17. Magnetic material; 18. Rack; 19. Gear; 20. Ball joint; 21. Mounting seat; 22. Pre-installed anchor; 23. Mounting plate; 24. Connecting plate; 25. Bearing seat; 26. Mounting block; 27. Coil II; 28. Magnet. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3 A wave energy power generation device comprises a sealed shell 3, a support guide rod 12, a mounting rod 13 and a pre-installed anchor 22. The support guide rod 12 and the mounting rod 13 are both arranged in the vertical direction, the bottom of the mounting rod 13 is connected to the pre-installed anchor 22 through a connecting piece, the bottom end of the support guide rod 12 is detachably mounted on the top of the mounting rod 13, and the top end is inserted into the shell 3, the shell 3 is slidably arranged along the length extension direction of the support guide rod 12, the outer shape of the shell 3 is an "eggshell" structure, and a power generation device is installed inside the shell 3.

[0021] In this example, a hatch cover is also provided on the shell 3, and the position of the hatch cover is higher than the position of the circular platform 4. A ladder 2 is provided on the inner side of the hatch cover to facilitate operators to enter the shell 3 for inspection or maintenance. The entire shell 3 adopts a closed design. When the entrance and exit are not in use, the hatch cover is used to cover it to ensure that most of the mechanisms in the shell 3 are isolated from the seawater, so as to avoid the corrosion of seawater and the influence of marine organisms on the traditional wave energy power generation device, and will not cause pollution to the marine environment. The hatch cover is opened during maintenance. In addition, the shell 3 with an appearance similar to an "egg shell" can effectively transmit pressure to the surroundings and disperse the pressure on the entire surface of the shell 3. The outer shell is made of carbon fiber material, which is resistant to seawater corrosion and has a light structure weight, which is sufficient to float on the sea surface. While ensuring that the entire device can withstand the impact of waves and the pressure of seawater, it has sufficient strength. In addition, a lightning rod 1 is installed on the top of the shell 3.

[0022] Here, the connecting piece adopts a ball joint 20, and the mounting rod 13 is connected to the pre-installed anchor 22 through the ball joint 20. Specifically, the ball joint 20 is arranged on the connecting plate 24, and the connecting plate 24 is installed on the pre-installed anchor 22 through the mounting seat 21. The bottom of the support guide rod 12 is detachably connected to the mounting rod 13 through the flange 11. The bottom of the housing 3 is provided with a sealing plate 10, and the sealing plate 10 is slidably sleeved on the support guide rod 12. The housing 3 is slidably arranged along the axial direction of the support guide rod 12 through the sealing plate 10.

[0023] Here, the power generation device includes a circular platform 4, a gear rack plate 7, a hydraulic rod 5, a guide rod 6 and a generator 8. The circular platform 4 is fixedly installed in the housing 3. The gear rack plate 7 is installed below the circular platform 4 and connected to the circular platform 4 through the hydraulic rod 5. The bottom end of the hydraulic rod 5 is connected to the rack 18 of the gear rack plate 7, and the top end is connected to the bottom surface of the circular platform 4. The guide rod 6 is passed through the circular platform 4 in the vertical direction and is fixedly connected to the gear rack plate 7. The guide rod 6, the circular platform 4 and the gear rack plate 7 are arranged coaxially, and the bottom of the gear rack plate 7 is fixedly installed on the top of the supporting guide rod 12; the circular platform 4 can be raised and lowered along the length extension direction of the guide rod 6, and the generator 8 is installed on the gear rack plate 7. In this example, a mounting plate 23 is fixedly provided on the upper surface of the circular platform 4, and a threaded hole is opened on the mounting plate 23. The circular platform 4 is fixed to the housing 3 by bolts that match the threaded holes on the mounting plate 23.

[0024] Here, the center of gravity of the internal mechanism of the shell 3 is designed to be biased downward, so that it can quickly return to normal when rolling in the waves, and the shell mainly moves up and down. A circular platform 4 is installed inside, which is fixedly connected to the shell 3. A guide rod 6 passes through the circular platform 4, and the lower end of the guide rod 6 is connected to the gear rack plate 7. The shell moves up and down continuously with the rise and fall of the waves, and the circular platform 4 moves freely up and down along the guide rod 6 with the shell 3. It moves down when the waves drop, and it rises when the waves rise.

[0025] A sleeve 15 is fixedly provided on the bottom surface of the circular platform 4 . The sleeve 15 is coaxially arranged with the guide rod 6 . A coil I 16 is arranged inside the sleeve 15 . A magnetic material 17 is arranged on the surface of the guide rod 6 .

[0026] There are multiple racks 18 on the gear rack plate 7, which are evenly spaced along the circumferential direction of the gear rack plate 7. The racks 18 can be slidably arranged along the radial direction of the gear rack plate 7. The hydraulic rods 5 correspond to the racks 18 in number and position, and the bottom end of the hydraulic rods 5 is connected to the top surface of the rack 18; the gears 19 correspond to the racks 18 in number and position. The sliding of the racks 18 drives the gears 19 meshing therewith to rotate, and a generator 8 is installed under each gear 19.

[0027] In addition, a mounting block 26 with a hollow inner cavity is fixedly provided on the gear rack plate 7, and the mounting block 26 corresponds to the rack 18 in position and quantity. The mounting block 26 is located on the outside of the rack 18, and a through hole is opened on the side of the mounting block 26 facing the rack 18. One end of the rack 18 is slidably inserted into the inner cavity of the mounting block 26 through the through hole. The outer side surface of one end of the rack 18 facing the mounting block 26 is wrapped with a magnetic steel 28, and the mounting block 26 is filled with a coil II 27, and the axial centerline direction of the coil II 27 is arranged perpendicular to the axial centerline direction of the rack 18.

[0028] Two supporting guide rods 12 are connected to the lower part of the gear rack plate 7, and the housing 3 can move up and down along the supporting guide rods 12. A flange 11 is welded to the other end of the supporting guide rods 12. Specifically, a plurality of support rods 9 are arranged at the bottom of the gear rack plate 7, and one end of the support rod 9 is connected to the supporting guide rod 12 to support the gear rack plate 7.

[0029] The whole set of equipment is simple to transport and install. The length of the installation rod 13 is determined according to the water depth. The installation rod 13 and the part below it can be disassembled from the shell 3 and towed to the designated sea area by a deck barge. The shell 3 and the installation rod 13 are connected with the flange 11 and then put into the water. The connector at the lower end of the installation rod 13 adopts a ball joint 20, which is flexible in rotation and can achieve multi-directional freedom of movement. It can reduce the load borne, improve fatigue resistance, and extend the service life. It is locked to the underwater pre-installed anchor 23 to prevent the device from being washed away by sea water, so that it floats or sinks with the waves, converting wave energy into electrical energy. The larger the waves, the more electrical energy is generated. It can be unlocked and towed back to the factory when maintenance is needed.

[0030] The power generation working principle of the present invention: 1) In the present invention, the magnetic material 17 disposed on the surface of the guide rod 6 is a magnet. When the sleeve 15 is lifted and lowered along the guide rod 6 along with the circular platform 4, the coil I 16 in the sleeve 15 cuts the magnetic material 17 on the guide rod 6 to generate electric energy. The generated electric energy will be converted by a power converter and transmitted to the shore power grid by a cable.

[0031] 2) In the present invention, the hydraulic rod 5 is a telescopic rod, and the top and bottom of the hydraulic rod 5 are fixedly connected to the circular platform 4 and the rack 18 through the hinge seat 14. When the circular platform 4 is raised or lowered, the hydraulic rod 5 is compressed, forcing the rack 18 to slide on the gear rack plate 7, thereby driving the gear 19 meshing with it to rotate, so that the generator 8 connected to the gear 19 rotates, cutting the magnetic flux lines to generate electrical energy, and the generated electrical energy will be transmitted to the shore power grid by cable after being converted by the power converter.

[0032] 3) A transmission device is provided on the outside of the mounting block 26. When the hydraulic rod 5 drives the rack 18 to slide along the radial direction of the gear rack plate 7, the rack 18 drives the magnetic steel 28 to extend into the coil II 27, as shown in FIG. Figure 4 As shown, the reciprocating motion of the rack 18 causes the magnet 28 to generate magnetic flux lines in the coil 29Ⅱ to induce electromagnetic induction and thus generate electricity.

[0033] This technical solution fully utilizes the kinetic energy of ocean waves and wave energy of other water surfaces, and converts the vertical or horizontal movement of ocean waves into rotational movement within the mechanism, driving the generator set within the buoy to convert it into electrical energy. The device can be installed in offshore or coastal waters rich in wave energy resources.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A wave energy power generation device, characterized in that: The invention comprises a sealed shell (3), a support guide rod (12), a mounting rod (13) and a pre-installed anchor (22), wherein the support guide rod (12) and the mounting rod (13) are both arranged in a vertical direction, the bottom of the mounting rod (13) is connected to the pre-installed anchor (22) via a connecting piece, the bottom end of the support guide rod (12) is detachably mounted on the top of the mounting rod (13), and the top end is inserted into the shell (3), the shell (3) can be slidably arranged along the length extension direction of the support guide rod (12), and the shell (3) ) has an "eggshell" structure, wherein a power generation device is installed inside the housing (3), the power generation device comprising a circular platform (4), a gear rack plate (7), a hydraulic rod (5), a guide rod (6) and a generator (8), wherein the circular platform (4) is fixedly installed inside the housing (3), the gear rack plate (7) is installed below the circular platform (4) and connected to the circular platform (4) via the hydraulic rod (5), and the bottom end of the hydraulic rod (5) is connected to the rack (18) of the gear rack plate (7). The guide rod (6) is connected to the housing (3), the top end of which is connected to the bottom surface of the circular platform (4); the guide rod (6) is vertically inserted through the circular platform (4) and fixedly connected to the gear rack plate (7); the guide rod (6), the circular platform (4) and the gear rack plate (7) are coaxially arranged; the bottom of the gear rack plate (7) is fixedly mounted on the top end of the supporting guide rod (12); the circular platform (4) can be raised and lowered along the length extension direction of the guide rod (6) along with the housing (3); the generator (8) is installed On the gear rack plate (7), a sleeve (15) is fixedly provided on the bottom surface of the circular platform (4), the sleeve (15) and the guide rod (6) are arranged coaxially, a coil I (16) is arranged in the sleeve (15), and a magnetic material (17) is arranged on the surface of the guide rod (6). When the sleeve (15) is raised and lowered along the guide rod (6) along with the circular platform (4), the coil I (16) in the sleeve (15) and the magnetic material (17) on the guide rod (6) are cut to generate electrical energy.

2. A wave energy power generation device according to claim 1, characterized in that: The rack (18) on the gear rack plate (7) is provided with a plurality of racks (18) which are evenly spaced along the circumferential direction of the gear rack plate (7); the racks (18) can be slidably provided along the radial direction of the gear rack plate (7); the hydraulic rod (5) and the racks (18) correspond one to one in number and position; the bottom end of the hydraulic rod (5) is connected to the top surface of the rack (18); the gear (19) and the rack (18) correspond one to one in number and position; the sliding of the rack (18) drives the gear (19) meshing therewith to rotate; and a generator (8) is installed below each of the gears (19).

3. A wave energy power generation device according to claim 2, characterized in that: A mounting block (26) with a hollow inner cavity is fixedly provided on the gear rack plate (7), and the mounting block (26) corresponds to the rack (18) in position and quantity. The mounting block (26) is located on the outer side of the rack (18), and a through hole is opened on the side of the mounting block (26) facing the rack (18). One end of the rack (18) is slidably inserted into the inner cavity of the mounting block (26) through the through hole. The outer side surface of one end of the rack (18) facing the mounting block (26) is wrapped with magnetic steel, and the mounting block (26) is filled with a coil II (27), and the axial centerline direction of the coil II (27) is arranged perpendicular to the axial centerline direction of the rack (18).

4. A wave energy power generation device according to claim 1, characterized in that: The bottom end of the installation rod (13) is connected to the pre-installed anchor (22) via a ball joint.

5. A wave energy power generation device according to claim 1, characterized in that: The shell (3) is made of carbon fiber material.

6. A wave energy power generation device according to claim 1, characterized in that: A sealing plate (10) is provided at the bottom of the shell, and the sealing plate (10) is slidably sleeved on the support guide rod (12), and the shell (3) is slidably arranged along the axial direction of the support guide rod (12) through the sealing plate (10).

7. A wave energy power generation device according to claim 1, characterized in that: A lightning rod (1) is installed at the top of the shell (3), and a hatch cover is provided on the outer surface of the shell (3), the hatch cover is located above the circular platform (4), and a ladder (2) is provided inside the hatch cover.

Images