A wind wave integrated power generation device

Abstract

The present application relates to the technical field of ocean wave energy utilization, and particularly relates to a wind wave integrated power generation device, which comprises a wave power generation structure and an energy conversion system, the wave power generation structure comprises a conductor, a wave-absorbing float and a magnet, the conductor is arranged on the outer wall of a fan tower, the conductor is electrically connected with the energy conversion system, the wave-absorbing float is provided with a mounting hole, the wave-absorbing float is sleeved on the fan tower through the mounting hole, and the magnet is arranged on the inner wall of the mounting hole; when the wave-absorbing float swings up and down along the fan tower with sea waves, the conductor cuts the magnetic lines of the magnet in the mounting hole; the present application is used for overcoming the defects that the power generation device in the prior art has a high failure rate due to a complex structure and occupies a large ocean area due to a large volume, the present application can simplify the device structure, reduce the device failure rate, improve the device operation reliability, optimize the structure design, reduce the device volume and improve the energy utilization rate of a unit sea area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ocean wave energy utilization, and particularly relates to a wind wave integrated power generation device. BACKGROUND

[0002] At present, most of the wind power equipment in the world is installed on land, but the landform is complex and rough, and the wind speed at different heights often differs greatly, resulting in wind shear and turbulence, so that the blades of the wind turbine are not balanced in force, which easily leads to blade vibration, fatigue and even fracture. In comparison, ocean wind energy has the advantages of cleanliness, safety and sustainability, and the development of offshore wind power has become the focus of the development of new energy fields, but the cost of maintaining offshore wind power equipment is high, and ocean wave energy and offshore wind energy have a significant associated relationship. By reasonably configuring and jointly developing the two kinds of energy, the synergistic effect of the two can be played, and the capital construction and operation and maintenance costs can be shared.

[0003] However, the existing wind energy-wave energy power generation device has a complex structure, which is not convenient for maintenance of the power generation device, has a high failure rate, and has a large volume, which increases the ocean occupation area and reduces the energy utilization rate per unit of sea area. SUMMARY

[0004] The present application is to overcome the defects of the prior art that the structure of the power generation device is complex, resulting in a high failure rate and a large volume, which increases the ocean occupation area. The wind wave integrated power generation device can effectively simplify the device structure, reduce the device failure rate, improve the device operation reliability, optimize the structure design, reduce the device volume, and improve the energy utilization rate per unit of sea area.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: a wind wave integrated power generation device, comprising a wave power generation structure and an energy conversion system, the wave power generation structure comprising a conductor, a wave-absorbing float and a magnet, the conductor being arranged on the outer wall of a wind turbine tower, the conductor being electrically connected with the energy conversion system, the wave-absorbing float being provided with a mounting hole, the wave-absorbing float being sleeved on the wind turbine tower through the mounting hole, the magnet being arranged on the inner wall of the mounting hole, when the wave-absorbing float oscillates up and down along the wind turbine tower with sea waves, the conductor cuts the magnetic lines of force of the magnet in the mounting hole.

[0006] Further, a semi-submersible platform is arranged on the wind turbine tower, the wave power generation structure is located at the bottom side of the semi-submersible platform, and the energy conversion system is located at the top side of the semi-submersible platform.

[0007] Further, the semi-submersible platform comprises a water platform and an underwater platform arranged at intervals, and the wave power generation structure is arranged between the water platform and the underwater platform. Further, the semi-submersible platform comprises a water platform and an underwater platform arranged at intervals, and the wave power generation structure is arranged between the water platform and the underwater platform.

[0008] Further, the area of the underwater platform is greater than the area of the above-water platform.

[0009] Further, a first hydraulic cylinder is arranged between the above-water platform and the wave-absorbing float, and a second hydraulic cylinder is arranged between the underwater platform and the wave-absorbing float.

[0010] Further, the side wall of the wave-absorbing float is in an arc shape.

[0011] Further, the side wall of the wave-absorbing float is in an arc shape.

[0012] Further, the area of the top surface of the wave-absorbing float is greater than the area of the bottom surface of the wave-absorbing float.

[0013] Further, the top surface of the wave-absorbing float is in a plane structure, and the bottom surface of the wave-absorbing float is in an arc shape.

[0014] Further, the bottom surface of the wave-absorbing float is in an arc shape.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The wind and wave integrated power generation device provided by the application is fixedly installed on the seabed in use, and under the action of wind, the fan blades rotate to generate electricity, and the electricity is transmitted to the energy conversion system. Meanwhile, under the action of sea waves, the wave-absorbing float vertically oscillates along the fan tower drum, the magnet on the wave-absorbing float moves relative to the conductor on the fan tower drum, the conductor cuts the magnetic lines of the magnet to generate electricity, and the electricity is collected in the energy conversion system for use by the load.

[0017] The wave energy power generation structure is combined with the existing fixed single-pile fan in the embodiment, an integrated structure sharing a foundation pile is realized, the sea area used by the device is greatly reduced, the energy utilization rate per unit sea area is improved, and the construction cost is saved. Meanwhile, the wave energy can be recycled only by the wave-absorbing float, the conductor and the magnet, the structure of the device is simplified, the failure rate of the device is reduced, and the operation reliability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] FIG. 1 is a front view of a wind and wave integrated power generation device in the application; Figure 1 FIG. 1 is a front view of a wind and wave integrated power generation device in the application;

[0019] FIG. 1 is a front view of a wind and wave integrated power generation device in the application; Figure 2 FIG. 1 is a front view of a wind and wave integrated power generation device in the application;

[0020] FIG. 1 is a front view of a wind and wave integrated power generation device in the application; Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The present invention will be described in one embodiment below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present patent. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] like Figures 1-2 As shown, this embodiment provides an integrated wind and wave power generation device, including a wave power generation structure and an energy conversion system 9. The wave power generation structure includes a conductor 2, a wave-absorbing float 1, and a magnet 3. The conductor 2 is disposed on the outer wall of the wind turbine tower 4 and is electrically connected to the energy conversion system 9. The wave-absorbing float 1 is provided with an installation hole and is sleeved on the wind turbine tower 4 through the installation hole. The magnet 3 is disposed on the inner wall of the installation hole. When the wave-absorbing float 1 swings up and down along the wind turbine tower 4 with the wave fluctuation, the conductor 2 cuts the magnetic lines of force of the magnet 3 in the installation hole.

[0023] It should be noted that the wind and wave integrated power generation device provided in the embodiment is applied to the existing fixed single-pile wind turbine, and is used to realize the integrated structure of wind energy and wave energy. The existing fixed single-pile wind turbine includes a wind turbine tower 4, a wind turbine blade 10 and a generator. The bottom end of the wind turbine tower 4 is fixedly installed on the seabed, the top end of the wind turbine tower 4 extends out of the sea surface, the wind turbine blade 10 is installed at the top end of the wind turbine tower 4, and the wind turbine blade 10 is preferably designed as three pieces of commonly used airfoil shape. The wind turbine tower 4 is preferably cylindrical, and the top end diameter is smaller than the bottom end diameter. The generator is installed at the top end of the wind turbine tower 4. Based on the existing fixed single-pile wind turbine, the conductor 2 of the wave power generation structure is installed on the wind turbine tower 4, that is, the conductor 2 is wrapped on the outer wall of the wind turbine tower 4. In the embodiment, the conductor 2 is preferably designed as a coil. Then the wave-absorbing float 1 is sleeved on the wind turbine tower 4 by using the mounting hole. The wave-absorbing float 1 can float on the sea surface and slide along the wind turbine tower 4 with the fluctuation of the wave. The magnet 3 is arranged on the inner wall of the mounting hole. The magnet 3 is preferably designed as a rectangle, which is beneficial to increase the installation area. In order to improve the cutting effect, the magnet 3 is preferably arranged parallel to the wind turbine tower 4, that is, the magnet 3 is located between the wave-absorbing float 1 and the conductor 2. When the wave-absorbing float 1 swings along the wind turbine tower 4 with the sea wave, the magnet 3 on the wave-absorbing float 1 moves relative to the conductor 2 on the wind turbine tower 4, which is equivalent to the movement of the conductor 2 cutting the magnetic force line of the magnet 3. At the same time, the energy exchange system includes a power generation system, an energy storage system and a power coupling system. When the conductor 2 is electrically connected with the energy conversion system 9, it is equivalent to that the conductor 2 in the closed circuit cuts the magnetic force line. At this time, the conductor 2 can generate current, realizing the utilization of wave energy.

[0024] Specifically, in use, the fixed single-pile wind turbine is fixedly installed on the seabed. Under the action of wind, the wind turbine blade 10 rotates to generate electricity, and the electricity is transmitted to the energy conversion system 9. At the same time, under the action of the sea wave, the wave-absorbing float 1 swings up and down along the wind turbine tower 4 with the sea wave. The magnet 3 on the wave-absorbing float 1 moves relative to the conductor 2 on the wind turbine tower 4. The conductor 2 cuts the magnetic force line of the magnet 3 to generate electric energy, which is collected in the energy conversion system 9 for use by the load.

[0025] Compared with the prior art, the wave energy power generation structure is combined with the existing fixed single-pile wind turbine to realize the integrated structure of the shared foundation pile, which greatly reduces the sea area of the device, improves the energy utilization rate of the unit sea area, saves the construction cost, and simplifies the structure of the device. At the same time, the device failure rate is reduced, and the operation reliability of the device is improved.

[0026] Further, as Figure 1As shown, in order to limit the movement range of the wave-absorbing float 1 and enable the conductor 2 to stabilize the magnetic force line of the magnetic cutting magnet 3, in the embodiment, the fan tower 4 is provided with a semi-submersible platform, wherein the semi-submersible platform comprises a water platform 5 and a water platform 6 arranged at intervals, the wave power generation structure is arranged between the water platform 5 and the water platform 6, and the energy conversion system 9 is installed on the top surface of the water platform 5.

[0027] It should be noted that the fan tower 4 is provided with the conductor 2 on the length between the water platform 5 and the water platform 6, the conductor 2 is electrically connected with the energy conversion system 9 arranged on the top surface of the water platform 5, wherein the water platform 5 and the water platform 6 are preferably designed as a disc shape, the water platform 5 is arranged higher than the water surface, the water platform 6 is completely submerged in water, the sea surface is located between the water platform 5 and the water platform 6, and the wave-absorbing float 1 floats on the sea surface and slides between the water platform 5 and the water platform 6 along with the waves.

[0028] Further, as shown in the figure, Figure 1 In order to better utilize wave energy, in the embodiment, the water platform 5 and the wave-absorbing float 1 are provided with a first hydraulic cylinder 7, and the water platform 6 and the wave-absorbing float 1 are provided with a second hydraulic cylinder 8, wherein the rod cavity of the first hydraulic cylinder 7 is installed on the bottom surface of the water platform 5, the rodless cavity of the first hydraulic cylinder 7 is installed on the top surface of the wave-absorbing float 1, the rod cavity of the second hydraulic cylinder 8 is installed on the bottom of the wave-absorbing float 1, and the rodless cavity of the second hydraulic cylinder 8 is installed on the top surface of the water platform 6. At the same time, in order to better receive the second hydraulic cylinder 8 and improve the connection stability of the second hydraulic cylinder 8 and the water platform 6, the area of the water platform 6 is preferably designed to be larger than the area of the water platform 5.

[0029] Specifically, under the action of the wave peak, the wave-absorbing float 1 moves upward, at this time, the first hydraulic cylinder 7 is compressed, the hydraulic oil in the rodless cavity of the first hydraulic cylinder 7 is pressed into the energy storage system of the energy conversion system 9, at the same time, the second hydraulic cylinder 8 is stretched, the hydraulic oil in the energy storage system of the energy conversion system 9 is sucked into the rodless cavity of the second hydraulic cylinder 8; and under the action of the wave trough, the wave-absorbing float 1 moves downward, at this time, the first hydraulic cylinder 7 is stretched, the hydraulic oil in the energy storage system of the energy conversion system 9 is pressed into the rodless cavity of the first hydraulic cylinder 7, at the same time, the second hydraulic cylinder 8 is compressed, the hydraulic oil in the energy storage system of the energy conversion system 9 is sucked into the rodless cavity of the second hydraulic cylinder 8, the embodiment realizes the integrated application of the double energy conversion mode, and further improves the energy conversion rate of the unit area of the sea area for the hydraulic energy conversion mode and the linear motor energy conversion mode, i.e. the application of the hydraulic rod cylinder and the conductor 2 cutting the magnetic force line of the magnetic magnet 3.

[0030] Further, as shown in the figure, Figures 1-2As shown, to facilitate the movement of the wave-absorbing float 1 with the waves, this embodiment employs a specially shaped wave-absorbing float 1 structure design. Specifically, the wave-absorbing float 1 is a semi-submersible, floating, cylindrical structure. The float 1 has a mounting hole in its center. Cutting the float 1 along the axis of the mounting hole reveals the following characteristics in its cross-section: the top of the float 1 is flat, the bottom is semi-circular, and the two side walls are curved, resembling an eagle's head. The wall surface of the mounting hole is parallel to the wall surface of the wind turbine tower 4. From a top view, the float 1 appears as a disc, with the mounting hole penetrating the wind turbine tower 4. The axis of the mounting hole coincides with the axis of the wind turbine tower 4. The side wall of the wave-absorbing float 1 has an arc-shaped structure. In order to better drain water and float with the waves, it is preferable to design the side wall of the wave-absorbing float 1 as an arc-shaped concave surface. At the same time, it is preferable to design the top surface of the wave-absorbing float 1 as a planar structure and the bottom surface of the wave-absorbing float 1 as an arc shape, preferably an arc-shaped convex surface. The area of ​​the top surface of the wave-absorbing float 1 is designed to be larger than the area of ​​the bottom surface of the wave-absorbing float 1. The structural design of the wave-absorbing float 1 facilitates the installation of the first hydraulic cylinder 7 and improves the installation stability. On the other hand, it facilitates the floating of the wave-absorbing float 1 on the sea surface. At the same time, the shape of the wave-absorbing float 1 facilitates floating with the waves and improves the energy conversion effect.

[0031] Working principle:

[0032] like Figures 1-2 As shown, when using this device, the fixed monopile wind turbine is fixedly installed on the seabed. Under the action of wind, the turbine blades 10 rotate to generate electricity, which is transmitted to the energy conversion system 9. Under the action of wave crests, the wave-absorbing float 1 moves upward, the first hydraulic cylinder 7 is compressed, and the hydraulic oil in the rodless chamber of the first hydraulic cylinder 7 is forced into the energy storage system of the energy conversion system 9. At the same time, the second hydraulic cylinder 8 is stretched, and the hydraulic oil in the energy storage system of the energy conversion system 9 is drawn into the rodless chamber of the second hydraulic cylinder 8. Similarly, under the action of wave troughs, the wave-absorbing float 1 moves downward, the first hydraulic cylinder 7 is stretched, and the hydraulic oil in the energy storage system of the energy conversion system 9 is forced out to the rodless chamber of the first hydraulic cylinder 7. At the same time, the second hydraulic cylinder 8 is compressed, and the hydraulic oil in the energy storage system of the energy conversion system 9 is drawn into the rodless chamber of the second hydraulic cylinder 8, thus realizing hydraulic energy conversion.

[0033] Meanwhile, when the wave-absorbing float 1 reciprocates along the wind turbine tower 4 under the action of waves, the coil of the wind turbine tower 4 cuts the magnetic lines of force of the magnet 3 of the wave-absorbing float 1, generating electrical energy, which is collected in the energy storage system of the energy conversion system 9 for use by the load. This device has a simple structure, controllable movement amplitude of the wave-absorbing float 1, high maintainability, and high safety, making it suitable for use in complex marine environments. In addition, this device achieves an integrated structure with shared foundation piles, which greatly reduces the sea area occupied by the device and improves the energy utilization rate per unit sea area.

[0034] In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In addition, if the embodiments of this invention involve descriptions of "first," "second," etc., such descriptions are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of those features. Furthermore, the meaning of "and / or" throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that simultaneously satisfies A and B.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of the present invention.

Claims

1. A wind and wave integrated power generation device, characterized by, The wave power generation structure comprises a conductor (2), a wave-absorbing float (1) and a magnet (3), the conductor (2) is arranged on the outer wall of a fan tower (4), the conductor (2) is electrically connected with an energy conversion system (9), the wave-absorbing float (1) is provided with a mounting hole, the wave-absorbing float (1) is sleeved on the fan tower (4) through the mounting hole, the magnet (3) is arranged on the inner wall of the mounting hole, when the wave-absorbing float (1) fluctuates along the fan tower (4) up and down with sea waves, the conductor (2) cuts the magnetic lines of force of the magnet (3) in the mounting hole; the fan tower (4) is provided with a semi-submersible platform, the wave power generation structure is located at the bottom side of the semi-submersible platform, and the energy conversion system (9) is located at the top side of the semi-submersible platform; the semi-submersible platform comprises a water platform (5) and a water platform (6) arranged at intervals, the wave power generation structure is arranged between the water platform (5) and the water platform (6); the area of the water platform (6) is greater than that of the water platform (5); a first hydraulic cylinder (7) is arranged between the water platform (5) and the wave-absorbing float (1), and a second hydraulic cylinder (8) is arranged between the water platform (6) and the wave-absorbing float (1); the side wall of the wave-absorbing float (1) is an arc-shaped structure, the side wall of the wave-absorbing float (1) is an arc-shaped concave surface; the area of the top surface of the wave-absorbing float (1) is greater than that of the bottom surface of the wave-absorbing float (1), the top surface of the wave-absorbing float (1) is a plane structure, and the bottom surface of the wave-absorbing float (1) is an arc-shaped surface.

2. The wind and wave integrated power generation device according to claim 1, characterized in that, The bottom surface of the wave-absorbing float (1) is an arc-shaped convex surface.

Images