Wave energy-tidal energy power generation device

Abstract

The invention provides a wave energy-tidal energy power generation device, which is suitable for shallow sea areas, can generate power by utilizing tidal energy generated by rising tide and falling tide of the sea and wave energy generated by sea waves on the sea, and consists of facilities such as a horn mouth, a piston, a horizontal pipeline, a U-shaped pipeline, a generator set and a funnel type water storage structure. The front end of the horn mouth faces seawater, and the rear end is connected with the first horizontal pipeline; a piston with the same inner diameter as the pipeline is mounted in the first section of horizontal pipeline, and fresh water is injected into a space behind the piston; the U-shaped pipeline is connected with the rear end of the first horizontal pipeline, a seawall is built at the lower part, and the rear end is connected with the second horizontal pipeline; a generator set is installed in the second section of horizontal pipeline and comprises a plurality of generators provided with three semicircular paddles, and the rear end of the second section of horizontal pipeline is connected with a funnel type water storage structure. Wave energy and tidal energy in the sea can be converted into electric energy for power generation, renewable energy sources are fully utilized, the power generation efficiency is high, the structure is simple, the maintenance cost is low, the device can be installed in coastal areas on a large scale so as to generate power in an environment-friendly mode, and use of fossil energy is reduced.

Description

Technical Field

[0001] The invention relates to the field of clean energy, and in particular to a wave energy-tidal energy power generation device. Background Art

[0002] With the continuous development and progress of society, more and more energy sources are being developed and utilized, including many clean and renewable energy sources. Under the influence of increasingly severe environmental pollution, energy crisis and other problems faced by modern society, the environmental protection and sustainability of these energy sources make them more advantageous than traditional non-renewable energy sources. Under the influence of the tidal force of the moon and the sun and the rotation effect of the earth, the seawater at high tide and low tide contains a large amount of kinetic energy and potential energy, forming tidal energy. At the same time, the sea surface will produce waves due to the action of wind, which also contains rich kinetic energy and potential energy, forming wave energy. Tidal energy and wave energy are two representatives of these clean and renewable energy sources. As ocean energy, wave energy and tidal energy can generate electricity at low cost in offshore areas, supply a large amount of electricity to various marine economic activities such as aquaculture and seawater desalination, and facilitate the lives of people in coastal areas. However, compared with the widespread application of solar power generation and wind power generation, the various existing wave energy and tidal energy power generation devices still have the disadvantages of low power generation efficiency and high maintenance cost, making it difficult to promote. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a wave energy-tidal energy power generation device with low maintenance cost and high power generation efficiency, so as to avoid the disadvantages mentioned in the above background.

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions.

[0005] A wave energy-tidal energy power generation device comprises a bell mouth, a piston, two sections of horizontal pipes, a U-shaped pipe, a seawall, a generator set and a funnel-type water storage structure; the bell mouth is connected to the front end of the first section of the horizontal pipe; the funnel-type water storage structure is connected to the rear end of the second section of the horizontal pipe; both ends of the U-shaped pipe are respectively connected to the two sections of the horizontal pipes and are located between the bell mouth and the funnel-type water storage structure; the piston is the internal structure of the first section of the horizontal pipe and is located between the bell mouth and the U-shaped pipe; the generator set is located between the second section of the horizontal pipe, the U-shaped pipe and the funnel-type water storage structure; the seawall is located in the space below the U-shaped pipe and is built in the sea.

[0006] The specific structure of the bell mouth is further provided. The bell mouth is a hollow structure, the front end cross-section is rectangular and has a larger area, and the rear end cross-section is circular and has a smaller area. Seawater enters from the front end and enters the first section of the horizontal pipeline through the small-diameter interface at the rear end.

[0007] Furthermore, the pipeline space behind the piston and up to the funnel-type water storage structure is completely filled with fresh water, which is separated from the external seawater by the piston.

[0008] A specific structure of a generator set is further provided, wherein the generator set is composed of a plurality of identical generators, wherein each generator is composed of an external generator, a rotating shaft and three semicircular blades; the three identical semicircular blades are connected to a horizontal rotating shaft, with an angle of 120 degrees between every two blades, and are located inside a second section of a horizontal pipe, and the external generator is placed outside a side of the second section of the horizontal pipe; the semicircular blades inside the horizontal pipe rotate around the rotating shaft driven by water flow, and are connected to the external generator via a rotating shaft extending outside the pipe to generate electricity.

[0009] The specific structure of the funnel-type water storage structure is further provided. The upper end of the funnel-type water storage structure has a larger diameter and is not sealed, and the lower end has a smaller diameter and is connected to a short section of a vertical pipe with the same diameter. The lower end is vertically connected to the upper part of the rear end of the second section of the pipe through the vertical pipe to ensure that all excess fresh water can rise to the funnel-type water storage structure for storage.

[0010] After adopting the above technical scheme, a wave energy-tidal energy power generation device of the present invention converts wave energy in waves and tidal energy in tides into electrical energy, making full use of renewable energy, being clean throughout the process, and having no environmental pollution; fresh water is used inside the pipeline of the present invention to generate electricity, and a seawall is provided in front of the generator set to reduce the impact of waves, so the maintenance cost is low; the present invention has a bell mouth to accelerate the inflow of seawater, has high power generation efficiency, and has a simple structure, so it is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a wave energy-tidal energy power generation device of the present invention;

[0012] Figure 2 It is a schematic diagram of the structure of a generator in the generator set of the present invention, including a front view and a side view;

[0013] Figure 3 It is a front view of the front cross section and the rear cross section of the bell mouth of the present invention;

[0014] exist Figures 1 to 3 Including:

[0015] Bell mouth 1, piston 2, horizontal pipe 3, U-shaped pipe 4, seawall 5, generator set 6, funnel-type water storage structure 7, semicircular blade 61, rotating shaft 62, external generator 63. DETAILED DESCRIPTION

[0016] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, a wave energy-tidal energy power generation device includes a bell mouth 1, a piston 2, two sections of horizontal pipes 3, a U-shaped pipe 4, a generator set 5 and a funnel-type water storage structure 6; the bell mouth 1 is connected to the front end of the first section of the horizontal pipe 3; the funnel-type water storage structure 7 is connected to the rear end of the second section of the horizontal pipe 3; both ends of the U-shaped pipe 4 are respectively connected to the two sections of the horizontal pipe 3, and are located between the bell mouth 1 and the funnel-type water storage structure 7; the piston 2 is the internal structure of the first section of the horizontal pipe 3, and is located between the bell mouth 1 and the U-shaped pipe 4; the generator set 6 is located between the second section of the horizontal pipe 3, the U-shaped pipe 4 and the funnel-type water storage structure 7; the seawall 5 is located in the space below the U-shaped pipe 4 and is built in the sea.

[0018] like Figure 1 , 3 As shown, the bell mouth is a hollow structure, the front cross section is rectangular and has a larger area, and the rear cross section is circular and has a smaller area. Seawater enters from the front end and enters the first section of the horizontal pipe 3 through the small-diameter interface at the rear end; the length-to-width ratio of the rectangular cross section at the front end of the bell mouth is about 5:1.

[0019] like Figure 1 As shown, the pipeline space behind the piston 2 and up to the funnel-type water storage structure 7 is completely filled with fresh water, which is separated from the external seawater by the piston 2; the caliber of the entire pipeline including the horizontal pipeline 3 and the U-shaped pipeline 4 is exactly the same and remains unchanged from beginning to end.

[0020] like Figure 1 , 2 As shown, the generator set 6 is composed of a plurality of identical generators, each of which is composed of an external generator 63, a rotating shaft 62 and three semicircular blades 61; the three identical semicircular blades 61 are connected to the horizontal rotating shaft 62, with an angle of 120 degrees between every two blades, and are located inside the second section of the horizontal pipe 3, and the external generator 63 is placed outside the side of the second section of the horizontal pipe 3; the semicircular blades inside the horizontal pipe 3 rotate around the rotating shaft driven by the water flow, and the external generator 63 is connected to the rotating shaft 62 extending outside the pipe to generate electricity; the external generator 63 needs to generate electricity when the rotating shaft rotates clockwise or counterclockwise, so an asynchronous generator should be used; the generated electricity is output through the electric wires laid on the seabed.

[0021] like Figure 1As shown, the upper end of the funnel-type water storage structure 7 has a larger diameter and is not sealed, while the lower end has a smaller diameter and is connected to a short section of a vertical pipe with the same diameter, and is vertically connected to the upper side of the rear end of the second section of the pipe 3 through the vertical pipe to ensure that all excess fresh water can rise to the funnel-type water storage structure 7 for storage; the upper end of the funnel-type water storage structure should be higher than the sea level after high tide, and at the same time higher than the highest height that the fresh water in the device can reach in this structure.

[0022] The working principle of the present invention is as follows:

[0023] When the kinetic energy of the waves and the tidal energy push the seawater into the bell-shaped mouth 1, the seawater will accelerate while passing through and finally impact the piston 2. The external pressure on the piston 2 is greater than the internal pressure, so the piston 2 pushes the fresh water in the horizontal pipe 3 backward, passes through the U-shaped pipe 4, enters the horizontal pipe 3 again, and flows through the generator set 6 to push the semicircular blades 61 to rotate the shaft 62 to generate electricity, and finally enters the funnel-type water storage structure 7.

[0024] When the waves retreat and the tide recedes, the external pressure on the piston 2 is less than the internal pressure, so the fresh water inside the funnel-type water storage structure 7 flows into the horizontal pipe 3 and is accelerated by the funnel-type water storage structure 7 in the process, then flows through the generator set 6 to generate electricity again, and then passes through the U-shaped pipe 4 and enters the horizontal pipe 3 to push the piston 2 forward.

[0025] Fresh water is used inside the pipes 3 and 4 of the present invention to generate electricity, so the corrosion to the pipe wall is small. At the same time, a seawall is built in front of the external generator 63, which can effectively protect the external generator 63 from being impacted by seawater and waves, thereby reducing maintenance costs; the bell mouth 1 and the funnel-type water storage structure of the present invention can effectively speed up the water speed, thereby improving the power generation efficiency; the present invention has a simple structure and is easy to promote in coastal areas.

[0026] The specific examples described above only provide a more detailed explanation of the technical problems solved by the present invention, the technical solutions adopted and the beneficial effects produced. It should be understood that the above contents are only specific examples of the present invention and are not used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wave energy-tidal energy power generation device, characterized in that: It includes a bell mouth, a piston, two sections of horizontal pipes, a U-shaped pipe, a generator set and a funnel-type water storage structure; the bell mouth is connected to the front end of the first section of the horizontal pipe; the funnel-type water storage structure is connected to the rear end of the second section of the horizontal pipe; both ends of the U-shaped pipe are respectively connected to the two sections of the horizontal pipes and are located between the bell mouth and the funnel-type water storage structure; the piston is the internal structure of the first section of the horizontal pipe and is located between the bell mouth and the U-shaped pipe; the generator set is located in the second section of the horizontal pipe, between the U-shaped pipe and the funnel-type water storage structure; the seawall is located in the space below the U-shaped pipe and is built in the sea.

2. A wave energy-tidal energy power generation device according to claim 1, characterized in that: The bell mouth is a hollow structure, the front cross section is rectangular and has a larger area, and the rear cross section is circular and has a smaller area. Seawater enters from the front end and enters the first section of the horizontal pipeline through the small-diameter interface at the rear end.

3. A wave energy-tidal energy power generation device according to claim 1, characterized in that: The pipeline space behind the piston and up to the funnel-type water storage structure is completely filled with fresh water, which is separated from the external seawater by the piston.

4. A wave energy-tidal energy power generation device according to claim 1, characterized in that: The generator set is composed of a plurality of identical generators, each of which is composed of an external generator, a rotating shaft and three semicircular blades; the three identical semicircular blades are connected to a horizontal rotating shaft, with an angle of 120 degrees between every two blades, and are located inside the second section of the horizontal pipe, and the external generator is placed outside the side of the second section of the horizontal pipe; the semicircular blades inside the horizontal pipe rotate around the rotating shaft driven by the water flow, and are connected to the external generator through the rotating shaft extending outside the pipe to generate electricity.

5. A wave energy-tidal energy power generation device according to claim 1, characterized in that: The upper end of the funnel-type water storage structure has a larger diameter and is not sealed, while the lower end has a smaller diameter and is connected to a short section of a vertical pipe with the same diameter. The lower end is vertically connected to the upper rear end of the second section of the pipe through the vertical pipe to ensure that all excess fresh water can rise to the funnel-type water storage structure for storage.

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