Wave power generation technology

Abstract

The invention relates to the technical field of energy conversion, in particular to a new technology for converting wave energy into electric energy. According to the technical scheme, the device comprises a rectangular platform, the platform is supported by reinforced concrete supporting columns and fixed to the position about 50 cm away from the sea surface, and a wave energy capturing device, a transmission device and a power generation device are distributed on the platform. The wave energy capturing device is composed of a plurality of floaters and swingers and can respectively capture kinetic energy of up-down floating and horizontal movement of waves. The transmission device transmits kinetic energy of the floater and the swinger to the generator through a plurality of transmission shafts, and continuous and stable power generation is achieved. The method has the technical advantages that the wave energy utilization efficiency is high, and intermediate energy conversion is not needed; the construction cost is low, the structure is simple and the manufacturing cost is low; the corrosion resistance is high; the stability is good; and the typhoon resistance is high. In conclusion, the invention provides a wave power generation technology which is efficient, low in cost, stable and high in typhoon resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conversion, and in particular to a technology for converting ocean wave energy into electrical energy. Background Art

[0002] With the continuous growth of global energy demand and the increasing depletion of mineral energy, global warming and climate change have forced humans to reduce the use of mineral energy. The development and utilization of renewable energy has become the focus of attention of countries around the world. Ocean wave energy, as a clean and renewable energy source, has huge development potential. However, there are many problems with existing wave energy power generation technology. For example, the existing power generation technology is fixed on the sea surface, and the ability to capture wave energy is weakened during low tide, resulting in unstable power generation and low efficiency; the power generation capacity of a single float is poor when it descends with the waves, that is, it can only achieve half-wave power generation, small power generation capacity, low wave utilization, and complex power generation device design, which limits the commercial application of wave energy power generation technology. Summary of the invention

[0003] In view of the shortcomings of the existing technology, the present invention proposes a new wave energy power generation technology, which aims to solve the problems that the power generation device is fixed on the sea surface, and its ability to capture wave energy is weakened during low tide, resulting in unstable and low power generation efficiency; the power generation capacity of a single float is poor when it descends with the waves, the power generation capacity is small, the utilization rate of waves is low, and the design of the power generation device is complex, so as to meet the commercial application of wave energy power generation technology.

[0004] The technical problem of the present invention is to provide a wave energy generation technology that can efficiently convert the kinetic energy of the up and down floating and horizontal movement of waves into mechanical energy rotating in the same direction, and drive the generator to generate electricity continuously and stably.

[0005] In order to achieve the above technical problems, the present invention adopts the following technical solutions:

[0006] Structural composition

[0007] The invention comprises a rectangular platform supported by reinforced concrete support columns and fixed at a position about 50 cm above the sea surface.

[0008] A lifting device is arranged at the joint between each support column and the platform to adjust the distance between the platform and the sea surface.

[0009] Wave energy capturing devices, transmission devices and power generation devices are distributed on the platform.

[0010] The wave energy capture device is composed of a plurality of floats and rockers. The floats are used to capture the kinetic energy of the waves floating up and down, and the rockers are used to capture the kinetic energy of the waves moving horizontally.

[0011] The transmission device is composed of a plurality of transmission shafts, and each transmission shaft is evenly connected with a plurality of floats and rockers.

[0012] The power generation device is composed of multiple generators, and each generator is connected to a transmission shaft through a gearbox.

[0013] Specific design

[0014] Platform size: 100m long, 50m wide, supported by 6 reinforced concrete support columns.

[0015] Lifting devices: 6, one is configured at the junction of each support column and platform.

[0016] Wave energy capture device: It consists of 182 floats and 84 rockers, evenly distributed on the platform.

[0017] Transmission device: It consists of 7 transmission shafts, each of which is 96m long and is made up of multiple sections of transmission shafts connected by screws.

[0018] Power generation device: It is composed of 7 generators, which are connected in parallel to form a power generation system.

[0019] Part connections and relationships.

[0020] The outer and middle steel beams of the platform are connected by screws through connectors.

[0021] The transmission shaft is connected to the platform through a support device with bearings.

[0022] The float and the rocker are connected to the platform through a supporting device with bearings, and then connected to the transmission shaft through a gear transmission device.

[0023] The transmission shaft is connected to the generator through a gearbox.

[0024] Since each drive shaft is connected to multiple float and rocker devices, and each device moves at a different time point, the drive shaft can rotate continuously at a constant speed, thereby driving the generator to generate electricity.

[0025] Technical advantages.

[0026] High wave energy utilization efficiency: The present invention adopts mechanical power generation, and realizes the transmission of wave energy from reciprocating motion to unidirectional rotation motion through the transmission mechanism of the float and the rocker, directly drives the generator to generate electricity, without the need for intermediate energy conversion, thereby improving the utilization efficiency of wave energy.

[0027] Low construction cost: The power generation device of the present invention has a simple structure and low manufacturing cost. Compared with pneumatic power generation and hydraulic power generation, the construction cost of the present invention is lower.

[0028] Strong corrosion resistance: except for the reinforced concrete support column and the resistance plate at the lower part of the rocker which are in the sea water, all other facilities of the present invention are on the water surface and will not be corroded by sea water, thus extending the service life of the equipment.

[0029] Good stability: the platform of the present invention is supported by reinforced concrete support columns and fixed at a position about 50 cm from the sea surface. All facilities are installed on the platform, which is very stable.

[0030] Strong typhoon resistance: In extreme weather conditions such as typhoons, the platform can be raised to an appropriate distance through the lifting device, and the float and rocker can be pulled out of the sea surface and fixed or removed to ensure the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the platform structure of the wave energy power generation technology provided in this application. There are 7 transmission shafts evenly distributed on the platform, each of which is connected by multiple transmission shafts. This schematic diagram only shows 3 of them. There are 13 groups of floats evenly distributed on each transmission shaft (each group of floats has 2), and 12 groups of rockers. This schematic diagram only shows a part of them.

[0032] Figure 2 Schematic diagram of the combined structure of the support column and platform of the wave energy power generation technology provided in this application;

[0033] Figure 3 A schematic diagram of the combined structure of the transmission shaft and platform of the wave energy power generation technology provided in this application;

[0034] Figure 4 A schematic diagram of the combined structure of a buoy device and a transmission shaft of the wave energy power generation technology provided in this application;

[0035] Figure 5 A schematic diagram of the combined structure of the oscillator device and the transmission shaft of the wave energy power generation technology provided in the present application. The resistance plate of the oscillator device and the transmission shaft are parallel to each other and should be a straight line in the figure. For ease of reading, this schematic diagram is replaced by a diamond.

[0036] Figure 6 Schematic diagram of the combined structure of the generator and transmission shaft of the wave energy power generation technology provided in this application.

[0037] Marked in the figure

[0038] Figure 1 : 101 support column, 102 steel beam, 103 transmission shaft, 104 float, 105 rocker, 106 gearbox, 107 generator;

[0039] Figure 2 : 201 steel beam, 202 lifting device, 203 reinforced concrete support column;

[0040] Figure 3 : 301 transmission shaft, 302 support seat with bearing device, 303 transmission shaft connecting screw, 304 support seat fixing screw with bearing device, 305 platform steel plate;

[0041] Figure 4 :401 transmission shaft, 402 fixing pin, 403 transmission gear, 404 float connection device, 405 support seat with bearing device, 406 fixing screw, 407 platform steel plate, 408 float suspension device, 409 fixing screw, 410 float;

[0042] Figure 5 : 501 transmission shaft, 502 fixing pin, 503 transmission gear, 504 support seat with bearing device, 505 rocker connecting device, 506 rocker resistance plate;

[0043] Figure 6 : 601 generator, 602 fixing screws, 603 gearbox, 604 gearbox and transmission shaft connecting screws, 605 transmission shaft, 606 generator support seat, 607 fixing screws, 608 platform steel plate. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. The described embodiments are only part of the embodiments of the present invention, not all of them.

[0045] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] In the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0047] Similar reference numerals and components denote generic items in the drawings, and therefore, once an item is defined in one drawing, further definition and explanation of the item is not required in this and subsequent drawings.

[0048] Example 1

[0049] Please refer to Figure 1 —6. A wave energy power generation technology comprises:

[0050] The wave energy capture device, the float 410 is a cylindrical float, about 60cm high and about 180cm in diameter, made of corrosion-resistant stainless steel plate, and the float uses the up and down floating of waves to generate kinetic energy of up and down movement; the rocker resistance plate 506 is a rectangular parallelepiped, about 180cm long and about 110cm wide, made of thickened corrosion-resistant stainless steel plate, and the rocker resistance plate uses the horizontal movement of waves to generate kinetic energy of horizontal movement;

[0051] Wave energy conversion device, buoy device ( Figure 1 Marked as 104, Figure 4 The kinetic energy generated by the floating of the float 410 is converted into the transmission shaft ( Figure 1 Marked as 103, Figure 4 The rotational mechanical energy of the rocker device ( Figure 1 Marked as 105, Figure 5 The kinetic energy generated by the reciprocating motion of the rocker 506 is converted into the rotational mechanical energy of the transmission shaft 501 through the transmission gear 503; the transmission shaft drives the generator rotor to rotate and generate electricity and convert it into electrical energy;

[0052] The transmission device, the sawtooth arc-shaped connecting strips on the float connecting device 404 and the rocker connecting device 505 drive the transmission gear to rotate, the transmission gear drives the transmission shaft to rotate, and the transmission shaft drives the generator to rotate;

[0053] The power generation device, the transmission shaft 605 converts the low-speed rotation of the transmission shaft into the high-speed rotation of the generator rotor through the gearbox 603 to meet the rotation speed required by the generator.

[0054] Example 2

[0055] Please refer to Figure 1 —2. The platform is supported by 6 reinforced concrete support columns. A lifting device is installed at the joint of the support columns and the platform to adjust the distance between the platform and the sea surface. The platform is raised during high tide and lowered during low tide, so that the platform maintains a distance of about 50 cm from the sea surface. This can fully utilize ocean wave energy for power generation and protect the platform from direct erosion by seawater, thereby improving the efficiency of wave energy utilization and extending the service life of the equipment.

[0056] Example 3

[0057] Based on Example 2, when encountering extreme weather such as typhoons, the platform is raised to a safe position, and the float device and the rocker device are pulled up from the sea surface and fixed or removed to ensure the safety of the equipment.

[0058] Example 4

[0059] Please refer to Figure 1 and Figure 3 Each transmission shaft 103 is about 96m long and is composed of multiple transmission shafts connected by screws 303. The transmission shaft 301 is fixed to the platform steel plate through a support seat 302 with a bearing device; 13 groups of floats (each group of floats has 2 on the left and right) and 12 groups of rockers are evenly distributed on each transmission shaft 103. The platform steel plate directly below 104 and 105 is designed with a gap to allow it to move freely; the up and down floating and horizontal movement of wave energy are different at different time points and different positions. The 25 groups of float devices and rocker devices evenly distributed on each transmission shaft capture the wave energy at different time points and different positions in a decentralized manner within a range of up to 100m, which is similar to the working principle of a fuel car engine, so that the transmission shaft 103 generates uniform and continuous rotating mechanical energy to drive the generator to generate electricity.

[0060] Example 5

[0061] Figure 4 The float connection device 404 drives the transmission gear 403 to rotate through the sawtooth arc-shaped connection bar (the center point of the arc of the connection bar is located at the center point of the bearing of the support seat 405 with the bearing device), and the transmission gear 403 drives the transmission shaft to rotate through the fixed latch 402;

[0062] The design of the dynamic transmission gear 403 is similar to the transmission gear of a bicycle. When the transmission gear rotates clockwise, the transmission shaft rotates clockwise. When the transmission gear rotates counterclockwise, it slides freely.

[0063] Figure 4 The float connection device 404 is designed with two parallel sawtooth arc-shaped connection strips. Figure 4 The transmission gear 403 is designed with two transmission gears arranged side by side. The design of the first transmission gear is the same as that described above. The first transmission gear is driven to rotate by the first sawtooth arc-shaped connecting strip. The diameter of the second transmission gear is smaller than that of the first transmission gear. A small transmission gear is added directly above the second transmission gear. The shafts at both ends of the small transmission gear are provided with bearings. The bearings are fixed by the added supporting device. The upper part of the small transmission gear is engaged with the second sawtooth arc-shaped connecting strip and the lower part is engaged with the second transmission gear. The second sawtooth arc-shaped connecting strip drives the small transmission gear to rotate in the same direction. The small transmission gear drives the second transmission gear to rotate in the opposite direction. The second transmission gear drives the transmission shaft to rotate in the same direction. Therefore, when the second sawtooth arc-shaped connecting strip rotates counterclockwise, the transmission shaft is driven to rotate clockwise. The second transmission gear can slide freely when rotating counterclockwise.

[0064] Figure 5 The working principle of the rocker device is the same as above Figure 4 Working principle of float device.

Claims

1. A wave energy power generation technology, characterized in that: include: A rectangular platform, the platform is supported by at least four reinforced concrete support columns and fixed at a predetermined height from the sea surface, wherein the predetermined height from the sea surface is about 50 cm; A lifting device is arranged at the joint of each support column and the platform, and is used to adjust the relative distance between the platform and the sea surface; The wave energy capture device is evenly distributed on the platform and includes a plurality of floaters and rockers, wherein the floaters are used to capture the kinetic energy of the waves floating up and down, and the rockers are used to capture the kinetic energy of the waves moving horizontally; The transmission device is composed of multiple transmission shafts, each of which is evenly connected to multiple floaters and wobblers, and is connected to the floaters and wobblers through a gear transmission device to convert wave energy into mechanical energy; The power generation device is composed of multiple generators, each of which is connected to the transmission shaft through a gearbox to convert the mechanical energy transmitted by the transmission shaft into electrical energy.

2. The wave energy power generation technology according to claim 1, characterized in that: The platform measures 100m in length and 50m in width and is supported by 6 reinforced concrete support columns.

3. The wave energy power generation technology according to claim 1, characterized in that: There are 6 lifting devices in total, one of which is arranged at the joint between each support column and the platform.

4. The wave energy power generation technology according to claim 1, characterized in that: The wave energy capturing device is composed of 182 floats and 84 wobblers.

5. The wave energy power generation technology according to claim 1, characterized in that: The transmission device is composed of 7 transmission shafts, each of which is about 96m long and is made up of multiple sections of transmission shafts connected by screws.

6. The wave energy power generation technology according to claim 1, characterized in that: The power generation device is composed of 7 generators, which are connected in parallel to form a power generation system.

7. The wave energy power generation technology according to claim 1, characterized in that: The outer periphery and middle steel beams of the platform are connected by screws through connectors, and the transmission shaft, float and rocker are connected to the platform through a supporting device with bearings.

8. The wave energy power generation technology according to claim 1, characterized in that: Since each drive shaft is connected to multiple float and rocker devices, and each device moves at a different time point, the drive shaft can rotate continuously at a constant speed, thereby driving the generator to generate electricity.

9. The wave energy power generation technology according to claim 1, characterized in that: Except for the resistance plate in the lower part of the rocker which is in the sea water, all other facilities are on the water surface to improve the corrosion resistance of the equipment.

10. The wave energy power generation technology according to claim 1, characterized in that: In extreme weather conditions, the platform can be raised to an appropriate distance by means of a lifting device, and the floats and wobblers can be pulled out of the sea surface and fixed, or the floats and wobblers can be removed to ensure the safety of the equipment.

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