Fan-coupled pipe organ type multiple resonance oscillating water column power generation device

Abstract

The application discloses a fan-coupled pipe organ type multiple resonance oscillating water column type power generation device and belongs to the technical field of wave energy power generation devices. The power generation device comprises a support structure, a tower drum, a wind power generation device, a plurality of oscillating water columns and a collecting pipeline. The support structure is vertically arranged at the lowermost position. The upper part of the support structure is provided with the tower drum. The upper part of the tower drum is provided with the wind power generation device. The plurality of oscillating water columns are vertically arranged around the support structure. The collecting pipeline is arranged above the plurality of oscillating water columns. The plurality of oscillating water columns have different lengths and can adapt to different tidal levels and wave heights and have the ability to continuously work under the change of tidal range. The plurality of oscillating water columns have different inner diameters and can produce multiple resonances with waves and improve the utilization rate of wave energy. The oscillating water columns are uniformly and evenly arranged in a ring around the support structure and have the ability to adapt to waves from different directions. The oscillating water column type wave energy power generation device has high utilization rate of wave energy, simple structure and is easy to disassemble and maintain.

Description

Technical Field

[0001] This invention relates to a wind turbine coupled pipe accordion-type multi-resonance oscillation water column power generation device, belonging to the technical field of wave energy power generation devices. Background Technology

[0002] The ocean contains abundant wind and wave energy. Wave energy generation devices can be classified into three types according to their power generation principle: oscillating water column type (OWC), oscillating body type, and overtopping type. Oscillating water column type wave energy devices have a simple structure, and the moving parts for energy conversion are all located above the water surface and do not come into contact with seawater, which has good corrosion resistance and is convenient for maintenance.

[0003] In the process of researching, developing, and utilizing wave energy, it was discovered that the development of wave energy as a single energy source also has certain limitations. Therefore, combining it with offshore wind power generation has made it possible to couple wind turbines with wave energy power generation devices. Oscillating water column wave energy devices are gradually being coupled with foundation structures such as breakwaters and wind turbines, improving the utilization rate of waves.

[0004] Currently, oscillating water column wave energy devices come in both onshore and offshore structures, with shapes including rectangular, U-shaped, and cylindrical. The air chamber structures include single-chamber and multi-chamber designs. Most existing oscillating water column wave energy devices are unilaterally wave-facing, failing to effectively absorb waves from different directions and resulting in low utilization rates. Tide levels vary at different times; if the tide is low, a deeper draft for the OWC design increases material costs, while a shallower draft hinders the formation of closed air chambers, leading to low device utilization. For multi-chamber OWCs, connecting an air turbine and generator to the outlet of each chamber would increase costs. Summary of the Invention

[0005] To address the technical problem of low wave energy utilization in existing oscillating water column wave energy devices, this invention provides a wind turbine coupled pipe accordion-type multi-resonance oscillating water column power generation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wind turbine coupled with a bellows-type multi-resonance oscillation water column power generation device includes: The supporting structure is vertically arranged; the direction perpendicular to the vertical direction of the supporting structure is the radial direction of the supporting structure. The tower is connected above the supporting structure; A wind power generation device is installed on the top of the tower. A plurality of oscillating water columns; the oscillating water columns are hollow columnar structures with openings at both ends; the plurality of oscillating water columns are arranged vertically around the support structure, with their upper ends located on the same plane; along one radial direction of the support structure, the length of the oscillating water columns decreases sequentially, and the inner diameter of the oscillating water columns decreases or increases sequentially. A manifold is located above the oscillating water column, and its air inlet is connected to the top openings of several of the oscillating water columns. A turbine generator is located at the outlet of the manifold.

[0007] According to some embodiments disclosed in this invention, the lengths of several of the oscillating water columns vary arithmetically along one radial direction of the support structure.

[0008] According to some embodiments disclosed in this invention, a plurality of the oscillating water columns are symmetrically distributed along one of the radial directions of the support structure.

[0009] According to some embodiments disclosed in this invention, the outer diameters of the plurality of oscillating water columns are equal.

[0010] According to some embodiments disclosed in this invention, it further includes a plurality of energized valves; the plurality of energized valves are installed at the bottom openings of the plurality of oscillating water columns.

[0011] According to some embodiments disclosed in this invention, a plurality of Tesla valves are also included; the plurality of Tesla valves are connected between the air inlet of the manifold and the top opening of the plurality of oscillating water columns.

[0012] According to some embodiments disclosed in this invention, a support plate is also included; the support plate has a plurality of vertical through holes, the inner diameter of which matches the outer diameter of the oscillating water column; the support plate is sleeved on the support structure, and the upper end of the oscillating water column passes through the through holes of the support plate and is statically connected to the support plate.

[0013] According to some embodiments disclosed in this invention, the wind power generation device includes wind turbine blades, a hub, and a nacelle; the wind turbine blades are fixedly connected to the hub, and the nacelle is movably connected to the hub.

[0014] The beneficial effects of this invention are: The various oscillating water columns have different lengths, and the multi-length design can adapt to different tide levels and wave heights, enabling the device to operate continuously under varying tidal ranges. The orderly arrangement of the oscillating water columns according to increasing or decreasing lengths can further improve the utilization rate of different wave heights.

[0015] The inner diameters of the oscillating water columns are different. The design of multiple inner diameters allows the oscillating water columns to resonate with the waves in multiple ways, thereby improving the utilization rate of wave energy.

[0016] The oscillating water columns are arranged in a ring at uniform intervals around the supporting structure and are symmetrically arranged along the radial direction of the supporting structure, giving it the ability to adapt to waves in different directions.

[0017] The confluence duct is designed so that multiple oscillating water columns can share the duct and collect airflow, thereby reducing power generation costs.

[0018] An energized valve is installed at the bottom of the oscillating water column to allow for both opening and closing of the column, thus minimizing air leakage when the column is not in operation.

[0019] The Tesla valve design allows the airflow exhaled by the oscillating water column to accelerate into the manifold, while also reducing the flow rate of airflow drawn into the oscillating water column when the valve is closed at low tide.

[0020] The oscillating water column wave energy generation device has a simple structure and is easy to disassemble and maintain. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a wind turbine coupled pipe bellows-type multiple resonant oscillation water column power generation device provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a wind turbine coupled pipe bellows-type multiple resonant oscillation water column power generation device provided in an embodiment of the present invention; Figure 3 This is another partial structural schematic diagram of a wind turbine coupled pipe bellows-type multiple resonant oscillation water column power generation device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the energizing valve of a wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of a Tesla valve in a wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device provided in an embodiment of the present invention. Among them, 1. wind turbine blades, 2. hub, 3. nacelle, 4. tower, 5. support structure, 6. manifold, 7. Tesla valve, 8. support plate, 9. oscillating water column, and 10. energized valve. Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0024] A wind turbine coupled pipe accordion-type multi-resonance oscillating water column type 9 power generation device, such as Figure 1 , 2 As shown in Figure 3, the system includes a support structure 5, a tower 4, a wind power generation device, several oscillating water columns 9, a confluence pipe 6, and a turbine generator; wherein the support structure 5, tower 4, and wind power generation device are arranged sequentially from bottom to top. The support structure 5 is vertically arranged and located at the bottom; the tower 4 is installed on the upper part of the support structure 5, and the wind power generation device is installed on the upper part of the tower 4; several oscillating water columns 9 are vertically arranged and arranged around the support structure 5; the confluence pipe 6 is located above the several oscillating water columns 9. The turbine generator (not shown in the figure) is located at the outlet of the confluence pipe.

[0025] like Figure 1 , 2 Or as shown in Figure 3: The support structure 5 can be a monopile support structure 5. The tower 4 is vertically arranged, and its bottom is connected to the top of the support structure 5; the support structure 5 and the tower 4 are located on the same vertical line. The wind power generation device can be any existing wind power generation device; specifically, it can be a wind power generation device including an air turbine; for example, it can be as follows: Figure 1 As shown, the wind power generation device includes wind turbine blades 1, a hub 2, and a nacelle 3; the wind turbine blades 1 are fixedly connected to the hub 2, and the nacelle 3 is movably connected to the hub 2. The wind turbine blades 1 rotate in a vertical plane about the nacelle 3 as an axis under the influence of wind power.

[0026] The oscillating water column 9 is a hollow columnar structure with openings at both ends; it can also be cylindrical. The oscillating water column 9 can be made of lightweight, high-strength materials to reduce the load response on the wind turbine's monopile foundation. For example... Figure 2 As shown, an energized valve 10 can be installed at the bottom opening of the oscillating water column 9. Specifically, the energized valve 10 can be connected to the bottom opening of the oscillating water column 9 via a flange. The outer surface of the energized valve 10 is treated with anti-corrosion measures. The energized valve 10 can be any existing type of energized valve 10; specifically, it can be such as... Figure 4 The solenoid valve 10 is shown. The solenoid valve 10 is designed to minimize air leakage when the oscillating water column 9 is not operating. At low tide, the shorter oscillating water column 9 may not be able to form a sealed air chamber, resulting in air leakage. Therefore, the solenoid valve 10 is closed when the oscillating water column 9 is not functioning properly. The solenoid valve 10 opens when the tide level changes enough to form a sealed air chamber.

[0027] A wind turbine coupling pipe accordion-type multi-resonance oscillating water column 9 type power generation device includes several oscillating water columns 9. The lengths and inner diameters of the several oscillating water columns 9 are unequal. "Unequal" means not completely equal; some are equal, and some are unequal. The outer diameters of the several oscillating water columns 9 can be equal or unequal; for ease of implementation, the outer diameters of the several oscillating water columns 9 are equal. The several oscillating water columns 9 are vertically arranged and surrounding a support structure 5, distributed around the support structure 5. The upper ports of the several oscillating water columns 9 are located on the same plane.

[0028] Along one of the radial directions of the supporting structure 5 (the direction perpendicular to the vertical direction of the supporting structure 5 is the radial direction of the supporting structure 5, the same below), the length of the oscillating water column 9 decreases sequentially. Specifically, it can be as follows: Figure 2 , 3 As shown, from left to right (one radial direction of the support structure 5), the length of the oscillating water column 9 decreases sequentially; for example, from left to right, the lengths of several oscillating water columns 9 change arithmetically. It should be noted that the taller oscillating water columns 9 are located on the wave-facing side, and the shorter oscillating water columns 9 are located on the wave-receding side (i.e., the shorter oscillating water columns 9 are located on the wave-facing side, and the oscillating water columns 9 with larger length angles are located on the wave-receding side) to achieve the highest utilization rate for waves in multiple different directions.

[0029] The oscillating water columns 9 on both sides of the supporting structure 5, and the lengths of two oscillating water columns 9 located at the same radial position, can be equal or unequal; for example, Figure 2 , 3 As shown, the two oscillating water columns 9 located on the front and rear sides of the support structure, second from the left, can have equal or unequal lengths. When the lengths of the two oscillating water columns 9 located at the same radial position are equal, the oscillating water columns 9 on the front and rear sides of the support structure 5 are symmetrically distributed with that radial direction of the support structure 5 as the axis.

[0030] Along one radial direction of the supporting structure 5, the inner diameters of several oscillating water columns 9 decrease or increase sequentially; specifically, such as... Figure 2 , 3 As shown, from left to right (one radial direction of the support structure 5), the inner diameter of the oscillating water column 9 can decrease or increase sequentially.

[0031] The several oscillating water columns 9 are statically connected to the supporting structure 5, which can be a detachable connection. The several oscillating water columns 9 can be directly connected to the supporting structure 5, or they can be connected via connectors. Specifically, it can be as follows: Figure 3 As shown, the dry oscillating water column 9 is connected to the support structure 5 via a support plate 8.

[0032] The support plate 8 has several vertical through holes, the inner diameter of which matches the outer diameter of the oscillating water column 9. The support plate 8 is fitted onto the support structure 5, and the upper end of the oscillating water column 9 passes through the through holes of the support plate 8 and is statically connected to the support plate 8. Specifically, as shown... Figure 3 As shown, the support plate 8 can be a circular plate structure. The support plate 8 can be a single piece or an assembled structure. A central hole matching the cross-sectional shape and size of the support structure 5 is provided at the center of the support plate 8, allowing the support structure 5 to pass through. Several through holes are also provided on the support plate 8, evenly distributed along the central hole; the number of through holes is determined by the number of oscillating water columns 9 to be installed, and is consistent with the number of oscillating water columns 9. The support plate 8 and the support structure 5 are statically connected, but can be detachably connected. The height of the support plate 8 installed on the support structure 5 can be adjusted according to changes in tide level. The support plate 8 and the oscillating water columns 9 are statically connected, but can be detachably connected.

[0033] The manifold 6 has an air inlet and an air outlet; the air inlet connects to the top openings of several oscillating water columns 9, and a turbine generator is installed at the air outlet. The manifold 6 can be fitted onto the supporting structure 5 and can be a ring-shaped pipe. Figure 2 As shown, the annular manifold 6 is horizontally arranged and fitted onto the support structure 5. The bottom of the annular manifold 6 has several air inlets, the number of which is equal to the vertical direction of the oscillating water column 9. The positions of the air inlets correspond to the positions of the openings at the top of the oscillating water column 9, and the air inlets are connected to the top openings of the several oscillating water columns 9.

[0034] Between the air inlet of the manifold 6 and the top openings of several oscillating water columns 9, it is possible to... Figure 2 As shown, several Tesla valves 7 are connected; these Tesla valves 7 are positioned between the air inlet of the manifold duct 6 and the top openings of several oscillating water columns 9. Any existing Tesla valve 7 can be used; specifically, the Tesla valve 7 shown in Figure 5 can be used. The Tesla valves 7 accelerate the airflow exhaled by the oscillating water columns 9 into the manifold duct 6, while also reducing the airflow intake of the oscillating water columns 9 when the valves are closed at low tide. The up-and-down vibration of the oscillating water columns causes the gas inside the air chamber to compress and expand, and the resulting airflow enters the rectified airflow duct through the Tesla valves 7 at the top of the air chamber. The airflow generated by multiple oscillating water columns 9 collectively drives the air turbine of the wind power generation device to rotate, achieving the conversion of wave energy into air turbine kinetic energy.

[0035] The working process of the wind turbine coupled pipe bellows-type multi-resonance oscillating water column 9 power generation device: The energized valve 10 located at the bottom of the oscillating water column 9 is opened, and waves from different directions enter the interior of several oscillating water columns 9 at different heights through the energized valve 10 to form water bodies that oscillate up and down. The water bodies that oscillate up and down inside the oscillating water column 9 compress and expand the gas inside the oscillating water column 9 to form a reciprocating airflow. The reciprocating airflow enters the confluence pipe 6 through the Tesla valve 7 at the top of the oscillating water column 9, realizing the rectification of the airflow generated by multiple oscillating water columns 9. The airflow generated by multiple oscillating water columns 9 drives the turbine generator to rotate from the outlet of the confluence pipe 6, realizing the conversion of wave energy into air turbine kinetic energy.

[0036] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device, characterized in that, include: The supporting structure is vertically arranged; the direction perpendicular to the vertical direction of the supporting structure is the radial direction of the supporting structure. The tower is connected above the supporting structure; A wind power generation device is installed on the top of the tower. A plurality of oscillating water columns; the oscillating water columns are hollow columnar structures with openings at both ends; the plurality of oscillating water columns are arranged vertically around the support structure, with their upper ends located on the same plane; along one radial direction of the support structure, the length of the oscillating water columns decreases sequentially, and the inner diameter of the oscillating water columns decreases or increases sequentially. A manifold is positioned above the oscillating water column, and its air inlet is connected to the top openings of several of the oscillating water columns. A turbine generator is located at the outlet of the manifold.

2. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, Along one radial direction of the support structure, the lengths of several of the oscillating water columns vary arithmetically.

3. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, Several of the oscillating water columns are symmetrically distributed along one of the radial directions of the support structure.

4. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, The outer diameters of several of the oscillating water columns are equal.

5. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, It includes several energized valves; the several energized valves are installed at the bottom openings of the several oscillating water columns.

6. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, It includes several Tesla valves; several Tesla valves are connected between the air inlet of the manifold and the top opening of several oscillating water columns.

7. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, It includes a support plate; the support plate has several vertical through holes, the inner diameter of which matches the outer diameter of the oscillating water column; the support plate is sleeved on the support structure, and the upper end of the oscillating water column passes through the through holes of the support plate and is statically connected to the support plate.

8. The wind turbine coupled pipe bellows-type multi-resonance oscillation water column power generation device according to claim 1, characterized in that, The wind power generation device includes wind turbine blades, a hub, and a nacelle; the wind turbine blades are fixedly connected to the hub, and the nacelle is movably connected to the hub.

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