Wave power generation device
The wave power generation device uses wave energy to drive the hydraulic power plant to generate electricity. Combined with the storage and release mechanism of the accumulator, the pollution, instability and land occupation of thermal, wind and hydropower generation are solved, and the clean and stable power generation effect is achieved. Suitable for our country's national conditions.
Patent Information
- Application Number
- CN202421618606.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Among the existing power generation technologies, thermal power generation is seriously polluted, fossil fuels are limited, wind power generation is unstable and occupies a large amount of land, hydropower dam repair and water storage methods are huge and arable land is wasted, making it difficult to adapt to the national conditions of a large population and arable land.
Design a wave power generation device, which uses floats and robotic arms to drive the hydraulic power device during the waves, drives the generator to rotate and generate electricity through couplings, and combines the accumulator to store the waves when the waves are surging and releases hydraulic energy when they are smooth, ensuring the power generation stability.
It has achieved clean and renewable energy wave power generation, avoided land occupation and climate impact, and is suitable for my country's national conditions, with small engineering volume, simple structure, safe and reliable, and is suitable for general promotion.
Smart Images
Figure CN222254197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wave energy utilization device, in particular to a sea wave power generation device. Background Art
[0002] At present, my country's electricity generation mainly relies on thermal power generation, which requires the burning of large amounts of coal, oil and other fossil fuels. On the one hand, fossil fuel reserves are limited, decreasing, and facing the risk of depletion; on the other hand, the carbon dioxide and sulfur oxides emitted by the burning of fuels in thermal power generation will lead to greenhouse effects and acid rain, which will deteriorate the environment on which we depend for survival.
[0003] Although wind power generation does not require the burning of fuels such as coal and oil and does not produce pollution, it is easily affected by climate change, is unstable and uncontrollable, and wind power generation equipment often occupies large tracts of land and cannot achieve economic savings.
[0004] Hydropower generation is a clean way of generating electricity and does not consume water resources. However, hydropower generation in the prior art generally adopts the method of building dams and storing water, and converts the water drop into high-speed rotation of turbines to drive the generating unit to generate electricity. This method of using dams and storing water for hydropower generation is not only a huge project, but also the water storage will lose a large amount of arable land. This power generation method is not suitable for my country's national conditions with a large population, small amount of arable land, and long dry season of rivers. Utility Model Content
[0005] The purpose of the utility model is to provide a wave power generation device to solve the problems raised in the above background technology.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wave power generation device, including a buoy, a mechanical arm, a base, a hydraulic power unit, a coupling, a generator, a concrete platform, a first pin and a second pin, characterized in that: the buoy is a shell in the shape of a truncated cone, and the buoy is connected to the front end of the mechanical arm through a pin; the mechanical arm is welded from steel plates, and its cross-section is a rectangular structure; the base is fixed on the concrete platform, and the base is connected to the tail of the mechanical arm through a first pin; the hydraulic power unit includes an oil cylinder, an oil pipe, a one-way valve, an oil tank, an accumulator, and a hydraulic motor, and the oil cylinder in the hydraulic power unit is connected to the mechanical arm through a second pin; the coupling is installed between the hydraulic motor and the generator, and the three are connected by a spline; the generator is fixed on the concrete platform, and the generator is driven to rotate by the hydraulic motor through the coupling, thereby generating electricity.
[0007] Preferably, the buoy is a fully enclosed frustum-shaped shell formed by welding steel plates. The buoy is placed in seawater. The buoyancy of the buoy is greater than the sum of its own gravity and the vertical force. When the waves come and go, the buoy will move up and down, thereby driving the mechanical arm to rotate clockwise and counterclockwise around the first pin shaft at the tail.
[0008] Preferably, the base is integrally formed by welding steel plates, and the base is connected to the concrete platform by high-strength anchor bolts.
[0009] Preferably, the hydraulic power unit is composed of a cylinder, an oil pipe, a one-way valve, an oil tank, an accumulator, and a hydraulic motor. The cylinder draws the hydraulic oil in the oil tank into the cylinder cavity and compresses it into high-pressure oil through the telescopic movement of the piston rod. The high-pressure oil is then transported to the hydraulic motor through the oil pipe, driving the hydraulic motor to rotate, thereby driving the generator to rotate and generate electricity.
[0010] Preferably, the second pin is located below the first pin.
[0011] Preferably, the oil cylinder is provided with four oil pipe interfaces, which are distributed on both sides of the oil cylinder.
[0012] Preferably, the one-way valves are distributed on both sides of the oil cylinder.
[0013] Preferably, the accumulator can store excess hydraulic energy when the waves are rough, and when the waves are calm, the accumulator releases the stored hydraulic energy to supplement the shortage of hydraulic energy.
[0014] Preferably, in the wave power generation device, when the waves come, the buoy will move upward, driving the mechanical arm to rotate counterclockwise around the first pin shaft of the tail. Since the second pin shaft is located below the first pin shaft, the piston rod of the oil cylinder connected to the mechanical arm through the second pin shaft will be pulled out under the counterclockwise rotation of the mechanical arm; when the waves recede, the buoy will move downward, driving the mechanical arm to rotate clockwise around the first pin shaft of the tail. Similarly, the piston rod of the oil cylinder connected to the mechanical arm through the second pin shaft will be pressed back into the cylinder cavity of the oil cylinder under the clockwise rotation of the mechanical arm; thus, when the waves repeatedly come and recede, the buoy repeatedly moves up and down, thereby driving the mechanical arm to repeatedly rotate counterclockwise and clockwise around the first pin shaft of the tail, thereby driving the piston rod of the oil cylinder to repeatedly extend and retract, and then continuously suck the hydraulic oil in the oil tank into the cylinder cavity of the oil cylinder and compress it into high-pressure oil; the high-pressure oil is transported to the hydraulic motor through the oil pipe to drive the hydraulic motor to rotate, and the hydraulic motor drives the generator to rotate through the coupling, thereby generating electricity.
[0015] The technical effects and advantages of the utility model are as follows: the sea wave power generation device utilizes wave energy to generate electricity. Compared with thermal power generation, it does not need to consume non-renewable fossil fuels such as coal and oil, and will not pollute the environment. Wave energy is a clean and renewable energy source. The sea wave power generation device can be arranged along the coast, which can avoid occupying a large amount of arable land. At the same time, the accumulator in the sea wave power generation device can store excess hydraulic energy when the waves are turbulent, and release the stored hydraulic energy when the waves are calm to supplement the lack of hydraulic energy, so as to ensure that the power generation work is not affected by the climate. Compared with wind power generation that easily occupies a large area of land and is easily affected by the climate, the sea wave power generation device has more advantages; the sea wave power generation device has a simple structure, and the processing and installation engineering volume is small. Compared with the traditional hydropower generation of dam repair and water storage, the engineering volume is small, land is saved, and it is more suitable for the national conditions of my country with a large population and less arable land; the sea wave power generation device has a novel and reasonable structural design, is easy to produce, is efficient and safe, is reliable to use and has good effects, and can be widely promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 It is a structural diagram of the hydraulic power unit.
[0018] Figure 3 It is a schematic diagram of the structure of the utility model when the sea wave hits.
[0019] Figure 4 It is a schematic diagram of the partial structure of the utility model when the sea wave hits (the cylinder piston rod is extended).
[0020] Figure 5 It is a schematic diagram of the structure of the utility model when the waves recede.
[0021] Figure 6 It is a schematic diagram of the partial structure of the utility model when the waves recede (the cylinder piston rod is retracted).
[0022] In the figure: 1 buoy, 2 mechanical arm, 3 base, 4 hydraulic power unit, 5 coupling, 6 generator, 7 concrete platform, 8 first pin shaft, 9 second pin shaft, 41 oil cylinder, 42 oil pipe, 43 one-way valve, 44 oil tank, 45 accumulator, 46 hydraulic motor. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides Figure 1 The wave power generation device shown in the figure comprises a buoy 1, a mechanical arm 2, a base 3, a hydraulic power device 4, a coupling 5, a generator 6, a concrete platform 7, a first
[0025] Pin shaft 8, second pin shaft 9, characterized in that: the buoy 1 is a shell in the shape of a truncated cone, the diameter of the buoy 1 is 10m, and its surface is painted with anti-rust paint. The buoy 1 is connected to the front end of the mechanical arm 2 through a pin shaft; the mechanical arm 2 is welded from steel plates, its cross-section is a rectangular structure, and the overall length is 22m; the base 3 is fixed on the concrete platform 7, and the base 3 is connected to the tail of the mechanical arm 2 through the first pin shaft 8; the hydraulic power unit 4 includes an oil cylinder 41, an oil pipe 42, a one-way valve 43, an oil tank 44, an accumulator 45, and a hydraulic motor 46. The oil cylinder 41 in the hydraulic power unit 4 is connected to the mechanical arm 2 through the second pin shaft 9; the coupling 5 is installed between the hydraulic motor 46 and the generator 6, and the three are connected by a spline; the generator 6 is fixed on the concrete platform 7, and the generator 6 is driven to rotate by the hydraulic motor 46 through the coupling 5, thereby generating electricity.
[0026] Specifically, in the wave power generation device, the buoy 1 is placed in the sea water, and the buoyancy of the buoy 1 is greater than the sum of its own gravity and the vertical force. When the waves come, the buoy 1 will move upward, driving the mechanical arm 2 to rotate counterclockwise around the first pin 8 at the tail. Since the second pin 9 is located below the first pin 8, the piston rod of the cylinder 41 connected to the mechanical arm 2 through the second pin 9 will be pulled out under the counterclockwise rotation of the mechanical arm 2; when the waves recede, the buoy 1 will move downward. Movement drives the mechanical arm 2 to rotate clockwise around the first pin 8 at the tail. Similarly, the piston rod of the oil cylinder 41 connected to the mechanical arm 2 through the second pin 9 will be pressed back into the cylinder cavity of the oil cylinder 41 under the clockwise rotation of the mechanical arm 2. Therefore, when the waves repeatedly come and go, the buoy 1 repeatedly moves up and down, thereby driving the mechanical arm 2 to repeatedly rotate counterclockwise and clockwise around the first pin 8 at the tail, thereby driving the piston rod of the oil cylinder 41 to repeatedly extend and retract. Then, the hydraulic oil in the oil tank 44 is continuously sucked into the cylinder cavity of the oil cylinder 41 and compressed into high-pressure oil; the high-pressure oil is transported to the hydraulic motor 46 through the oil pipe 42 to drive the hydraulic motor 46 to rotate, and the hydraulic motor 46 drives the generator 6 to rotate through the coupling 5, thereby generating electricity; when the waves are turbulent, the frequency of the up and down movement of the buoy 1 is accelerated, and the reciprocating frequency of the piston rod of the oil cylinder 41 is also accelerated, and the transported high-pressure oil is also increased. At this time, the accumulator 45 will store the excess hydraulic energy. When the waves are calm, the up and down movement of the buoy 1 is slowed down, and the high-pressure oil output by the oil cylinder 41 will also decrease. At this time, the accumulator 45 will release the stored hydraulic energy to supplement the lack of hydraulic energy, thereby ensuring that the wave power generation device can generate electricity normally at any time and is not affected by climate change. At the same time, the power generation efficiency of the wave power generation device is improved and the power generation is increased; the wave power generation device has a novel and reasonable structural design, is easy to produce, is efficient, reliable in use and has good effects, and can be widely promoted and used.
[0027] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A wave power generation device, comprising a buoy (1), a mechanical arm (2), a base (3), a hydraulic power device (4), a coupling (5), a generator (6), a concrete platform (7), a first pin shaft (8), and a second pin shaft (9), characterized in that: The buoy (1) is a shell in the shape of a truncated cone. The buoy (1) is connected to the front end of the mechanical arm (2) through a pin shaft. The mechanical arm (2) is welded from steel plates and has a rectangular cross-section. The base (3) is fixed on a concrete platform (7). The base (3) is connected to the tail of the mechanical arm (2) through a first pin shaft (8). The hydraulic power device (4) comprises an oil cylinder (41), an oil pipe (42), a one-way valve (43), an oil tank (44), an accumulator (45), and a hydraulic motor (46). The oil cylinder (41) in the hydraulic power device (4) is connected to the mechanical arm (2) through a second pin shaft (9). The coupling (5) is installed between the hydraulic motor (46) and the generator (6), and the three are connected through a spline. The generator (6) is fixed on the concrete platform (7). The generator (6) is driven to rotate by the hydraulic motor (46) through the coupling (5), thereby generating electricity.
2. A sea wave power generation device according to claim 1, characterized in that: The buoy (1) is a fully enclosed truncated cone-shaped shell formed by welding steel plates. The buoy (1) is placed in seawater. The buoyancy of the buoy (1) is greater than the sum of its own weight and the vertical force. When the waves come and go, the buoy (1) moves up and down, thereby driving the mechanical arm (2) to rotate clockwise and counterclockwise around the first pin shaft (8) at the tail.
3. The wave power generation device according to claim 1, characterized in that: The base (3) is integrally formed by welding steel plates, and the base (3) is connected to the concrete platform (7) via high-strength anchor bolts.
4. The ocean wave power generation device according to claim 1, characterized in that: The hydraulic power device (4) is composed of an oil cylinder (41), an oil pipe (42), a one-way valve (43), an oil tank (44), an accumulator (45), and a hydraulic motor (46). The oil cylinder (41) draws hydraulic oil in the oil tank (44) into the cylinder chamber and compresses it into high-pressure oil through the telescopic movement of the piston rod. The high-pressure oil is then transported to the hydraulic motor (46) through the oil pipe (42), driving the hydraulic motor (46) to rotate, thereby driving the generator (6) to rotate and generate electricity.
5. The ocean wave power generation device according to claim 1, characterized in that: The second pin shaft (9) is located below the first pin shaft (8).
6. A sea wave power generation device according to claim 1 or 4, characterized in that: The oil cylinder (41) is provided with four oil pipe (42) interfaces, which are distributed on both sides of the oil cylinder (41).
7. A sea wave power generation device according to claim 1 or 4, characterized in that: The one-way valves (43) are distributed on both sides of the oil cylinder (41).
8. A sea wave power generation device according to claim 1 or 4, characterized in that: The accumulator (45) can store excess hydraulic energy when the sea waves are rough, and when the sea waves are calm, the accumulator (45) releases the stored hydraulic energy to supplement the shortage of hydraulic energy.
9. The ocean wave power generation device according to claim 1, characterized in that: When the waves come, the buoy (1) moves upward, driving the mechanical arm (2) to rotate counterclockwise around the first pin shaft (8) at the tail. Since the second pin shaft (9) is located below the first pin shaft (8), the piston rod of the oil cylinder (41) connected to the mechanical arm (2) via the second pin shaft (9) will be pulled out under the counterclockwise rotation of the mechanical arm (2); when the waves recede, the buoy (1) moves downward, driving the mechanical arm (2) to rotate clockwise around the first pin shaft (8) at the tail. Similarly, the piston rod of the oil cylinder (41) connected to the mechanical arm (2) via the second pin shaft (9) will be pulled out under the clockwise rotation of the mechanical arm (2). The hydraulic oil in the oil tank (44) is continuously sucked into the cylinder cavity of the oil cylinder (41) and compressed into high-pressure oil. The high-pressure oil is delivered to the hydraulic motor (46) through the oil pipe (42), driving the hydraulic motor (46) to rotate. The hydraulic motor (46) drives the generator (6) to rotate through the coupling (5), thereby generating electricity.