An offshore wind turbine integrated with a double-chamber oscillating water column wave energy device

Abstract

This invention relates to the field of offshore power generation technology, specifically to an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device. The device includes a jacket and a dual-chamber oscillating water column wave energy assembly, which is driven by a lifting mechanism to achieve vertical movement. The assembly comprises an inner chamber and an outer chamber, with the inner chamber capable of vertical movement relative to the outer chamber. Both the inner and outer chambers are equipped with turbine power generation mechanisms. A flow regulation component is used to adjust the opening of the first and second air orifices. This invention can adjust the inner and outer chambers to a suitable draft depth via the lifting mechanism; it can also achieve single / dual chamber switching and adjust the orifice opening ratio to improve power generation efficiency via the flow regulation component; multiple measures can be combined to improve the power generation efficiency of the wave energy device. In extreme sea conditions, the dual-chamber oscillating water column wave energy assembly moves upwards, away from the sea surface to a safe position, thereby reducing the impact of waves on the device.

Description

Technical Field

[0001] This invention relates to the field of offshore power generation technology, specifically to an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device. Background Technology

[0002] In recent years, bottom-fixed offshore wind turbines (BFOWTs) have become an effective device for offshore wind energy development in shallow and medium-water areas. Among them, jacket foundation offshore wind turbines can adapt to greater water depths in near-shallow water areas, and their strong adaptability, simple structure, safety, reliability, and mature construction technology have made them widely favored by offshore wind power companies. However, the near-shore sites suitable for fixed wind turbines are becoming increasingly limited, and jacket foundations are also difficult to extend to deeper waters due to cost issues. Therefore, to further increase the overall development of marine clean energy, the core lies in researching the integrated development of multiple marine energy sources to achieve large-scale utilization of marine energy.

[0003] To promote the large-scale utilization of ocean energy, and considering that wave energy, as a high-energy-density and highly predictable renewable energy source, is abundant but its independent development costs are too high, it is worth noting that most wind-rich sea areas also contain abundant wave energy resources. This creates conditions for building an integrated "wind-wave" complementary platform. By integrating the Wave Energy Converter (WEC) into the foundation of stationary wind turbines, near-water space can be effectively utilized, energy output can be increased, and the cost of infrastructure sharing can be reduced.

[0004] For example, the "A jacket-type integrated power generation device" disclosed in publication number CN119195985A integrates a pendulum wave energy power generation device, an oscillating float wave energy conversion device, and a wave energy and tidal energy coupling power generation device into a jacket foundation to achieve integrated and efficient development of "wind-wave".

[0005] However, such existing technologies still have defects: (1) The oscillating float always floats on the water surface, and the waves will continuously and directly impact the oscillating float device. When facing extreme sea conditions, the float is easily damaged; (2) The pendulum wave energy power generation device is connected to the coupling base platform through a hinge. It is easy to be damaged in the marine environment for a long time, which is not conducive to long-term use; (3) When the wave height is too small, the oscillation amplitude of the float is small or only a few floats move, resulting in low power generation efficiency. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device. The device integrates the dual-chamber oscillating water column wave energy device within a jacket frame. This device includes an inner chamber and an outer chamber connected to a lifting drive mechanism. By moving the inner and outer chambers up and down, the draft of the two chambers can be adjusted to a suitable depth. Alternatively, by raising or lowering the inner chamber, it can be moved away from or into the water surface, allowing for switching between single and dual chamber operation with a flow regulation component. Furthermore, by adjusting the flow regulation component, the opening ratios of the first and second air holes can be made to meet the opening ratios corresponding to the highest power generation rate of the turbine power generation mechanism. This multi-pronged approach improves the power generation efficiency of the wave energy device. Additionally, by moving the inner and outer chambers upwards, they can be moved away from the sea surface in extreme sea conditions, reducing the impact of waves on the device and thus ensuring its survivability.

[0007] The technical solution provided by this invention is as follows: an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device, comprising a guide frame, a wind turbine assembly mounted on the top of the guide frame via a base, a control terminal mounted on the base, a dual-chamber oscillating water column wave energy assembly mounted below the base, and a lifting drive mechanism between the base and the dual-chamber oscillating water column wave energy assembly; the dual-chamber oscillating water column wave energy assembly includes an inner chamber and an outer chamber, the inner chamber including a first cavity with a bottom opening, and a first air hole at the top of the inner chamber; the outer chamber is sleeved outside the inner chamber, the outer chamber including a second cavity with a bottom opening, and a first air hole at the top of the outer chamber. The second air vent has a through hole in the middle of the outer air chamber, through which the inner air chamber passes to allow the inner air chamber to move up and down relative to the outer air chamber. The axial length of the outer air chamber is less than the axial length of the inner air chamber. Both the inner and outer air chambers are equipped with turbine power generation mechanisms. The air inlets of each turbine power generation mechanism are connected to the corresponding first and second cavities through the first and second air vents, respectively. Flow regulating components are provided at the first and second air vents to adjust the opening of the first and second air vents. The lifting drive mechanism, turbine power generation mechanism, and flow regulating components are all electrically connected to the control terminal.

[0008] Optionally, a first conduit and a second conduit are fixedly disposed at the bottom of the base, a first sleeve is fixedly disposed on the inner air chamber, and a second sleeve is fixedly disposed on the outer air chamber. The first sleeve is sleeved on the outside of the first conduit, and the second sleeve is sleeved on the outside of the second conduit. A lifting drive mechanism is disposed between the first sleeve and the first conduit, and between the second sleeve and the second conduit. The lifting drive mechanism includes a slide rail and a first electric slider. The first electric slider is used for controllable lifting and lowering along the slide rail. The slide rail is fixedly connected to the corresponding first conduit and the second conduit, and the first electric slider is fixedly connected to the corresponding first sleeve and the second sleeve.

[0009] Optionally, the flow regulation assembly includes a motor, a first swing arm, and a first baffle corresponding to the first air hole, and a motor, a second swing arm, and a second baffle corresponding to the second air hole. The motor is fixedly mounted on the inner and outer air chambers and electrically connected to the control terminal. One end of the first swing arm is connected to the output end of the corresponding motor, and the other end of the first swing arm is fixedly connected to the first baffle. The motor drives the first swing arm to swing to adjust the degree of obstruction of the first air hole by the first baffle. One end of the second swing arm is connected to the output end of the corresponding motor, and the other end of the second swing arm is fixedly connected to the second baffle. The motor drives the second swing arm to swing to adjust the degree of obstruction of the second air hole corresponding to the second baffle.

[0010] Optionally, the guide frame is provided with a coupling base located below the base. Both the coupling base and the base are fixedly provided with annular slide rail assemblies on their outer peripheries. The annular slide rail assembly is electrically connected to the control terminal. The annular slide rail assembly includes an annular guide rail, on which a second electric slider is movably disposed. It also includes an energy-concentrating plate, which is arc-shaped with its concave surface facing the dual-chamber oscillating water column wave energy assembly. The energy-concentrating plate is drivenly connected to the second electric slider to move circumferentially along the guide frame.

[0011] Optionally, a vertical slide rail assembly is provided between the annular slide rail assemblies, and the vertical slide rail assembly is electrically connected to the control terminal; the vertical slide rail assembly includes a vertical guide rail, and a third electric slider is movably disposed on the vertical guide rail, the third electric slider being drivenly connected to at least one side of the energy-concentrating plate, so that the energy-concentrating plate moves up and down along the vertical guide rail.

[0012] Optionally, a vertical reflection energy-concentrating load reduction component is provided on the guide frame, and the vertical reflection energy-concentrating load reduction component is located below the dual-chamber oscillating water column wave energy component; the vertical reflection energy-concentrating load reduction component includes a fixed platform, the fixed platform is fixed on the guide frame, the fixed platform is provided with a vent hole, the vent hole is provided with an iris valve, the iris valve is electrically connected to the control terminal, and the iris valve is used to control the opening status of the vent hole.

[0013] Optionally, a sealing ring is provided between the inner air chamber and the outer air chamber, and the sealing ring is located at the through hole.

[0014] Optionally, it also includes a wind speed monitoring sensor and a laser wavefront displacement sensor, which are electrically connected to the control terminal and located on the tower of the wind turbine assembly, above the sea surface.

[0015] Optionally, the wind turbine assembly includes wind turbine blades, a generator nacelle, and a tower. The tower is fixed to the top of the jacket, the generator nacelle is disposed on the top of the tower, and the wind turbine blades are drivenly connected to the input end of the generator nacelle.

[0016] Optionally, it also includes a power supply module, which is electrically connected to the control terminal.

[0017] Compared with the prior art, the technical solution provided by this invention has the following advantages: Addressing the shortcomings of the prior art, this invention integrates a dual-chamber oscillating water column wave energy device within the jacket structure. This device includes an inner chamber and an outer chamber connected to a lifting drive mechanism. The lifting and lowering of the inner and outer chambers allows them to be adjusted to a suitable draft; or, by raising and lowering the inner chamber, it can be moved away from or into the water surface, allowing for switching between single and dual chambers with the flow regulation component; or, by adjusting the flow regulation component, the opening ratio of the first and second air holes can achieve the highest power generation rate of the turbine power generation mechanism. Thus, the power generation efficiency of the wave energy device is improved through a combination of these measures. Furthermore, by moving the inner and outer chambers upwards, they can be moved away from the sea surface in extreme sea conditions, reducing the impact of waves on the device and ensuring its survivability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated device of offshore wind turbine and dual-chamber oscillating water column wave energy device proposed in an embodiment of the present invention.

[0019] Figure 2 This is a partial structural schematic diagram of the dual-chamber oscillating water column wave energy component proposed in an embodiment of the present invention.

[0020] Figure 3 for Figure 3Cross-sectional view along the AA direction.

[0021] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0022] Figure 5 This is a schematic diagram of the structure of the vertical reflection energy-concentrating load-reducing component proposed in an embodiment of the present invention. Detailed Implementation

[0023] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. The terms "first," "second," etc., used in this invention are for the convenience of describing the technical solutions of the invention and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solutions of the invention. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this invention.

[0025] Example 1 Combined with appendix Figure 1 To be continued Figure 5This embodiment proposes an integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device, including a jacket frame 1. A wind turbine assembly 3 is mounted on the top of the jacket frame 1 via a base 2. A control terminal 41 is mounted on the base 2. A dual-chamber oscillating water column wave energy assembly 5 is mounted below the base 2. A lifting drive mechanism 6 is provided between the base 2 and the dual-chamber oscillating water column wave energy assembly 5.

[0026] The dual-chamber oscillating water column wave energy component 5 includes an inner chamber 51 and an outer chamber 52. The inner chamber 51 includes a first cavity 510 with an opening at the bottom and a first air hole 511 at the top. The outer chamber 52 is sleeved on the outside of the inner chamber 51. The outer chamber 52 includes a second cavity 520 with an opening at the bottom and a second air hole 521 at the top. The outer chamber 52 has a through hole 523 in the middle, through which the inner chamber 51 passes to allow the inner chamber 51 to move up and down relative to the outer chamber 52. The axial length of the outer chamber 52 is less than the axial length of the inner chamber 51. Both the inner air chamber 51 and the outer air chamber 52 are equipped with turbine power generation mechanisms 7. The air inlets of each turbine power generation mechanism 7 are connected to the corresponding first cavity 510 and second cavity 520 through the first air hole 511 and the second air hole 521, respectively. Flow regulating components 8 are provided at the first air hole 511 and the second air hole 521. The flow regulating components 8 are used to adjust the opening degree of the first air hole 511 and the second air hole 521. The lifting drive mechanism 6, the turbine power generation mechanism 7 and the flow regulating components 8 are all electrically connected to the control terminal 41.

[0027] In this embodiment, the wind turbine assembly 3 includes wind turbine blades 300, a generator nacelle 301, and a tower 302. The tower 302 is fixed to the top of the jacket frame 1, the generator nacelle 301 is disposed on the top of the tower 302, and the wind turbine blades 300 are connected to the input end of the generator nacelle 301.

[0028] The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to this embodiment mainly includes two parts: a jacket frame 1 and a dual-chamber oscillating water column wave energy component 5. The upper end of the jacket frame 1 is connected to the wind turbine via a base 2, and the dual-chamber oscillating water column wave energy component 5 is located inside the jacket frame 1. Furthermore, this integrated device generally also includes a power transmission system for collecting, storing, or transmitting the electricity generated by the wind turbine component 3 and the dual-chamber oscillating water column wave energy component 5. In addition, in this embodiment, the integrated device also includes a power supply module 42, which is electrically connected to a control terminal 41 and is used to supply power to the dual-chamber oscillating water column wave energy component 5, etc.

[0029] The main principle of the dual-chamber oscillating water column wave energy component 5 in this embodiment is that the water column in the inner chamber 51 and the outer chamber 52 oscillates up and down under the action of waves, which compresses and expands the air in the inner chamber 51 and the outer chamber 52, thereby generating airflow at the first air hole 511 at the top of the inner chamber 51 and the second air hole 521 at the top of the outer chamber 52. The airflow drives the turbine power generation mechanism 7 connected to the first air hole 511 and the second air hole 521 to work, completing the conversion of wave energy into electrical energy.

[0030] In this embodiment, the dual-chamber oscillating water column wave energy component 5 utilizes a lifting drive to control the vertical movement of the inner chamber 51 and the outer chamber 52, thereby adjusting the draft of the inner chamber 51 and the outer chamber 52 to cope with different wave conditions. Due to the adjustment of the draft, the dual-chamber oscillating water column wave energy component 5 can better adapt to both tidal changes and wave conditions. By adjusting the draft, the natural frequency of the water column is matched with the wave frequency, thus improving the wave energy conversion efficiency. Typically, the inner chamber 51 has a deeper draft, while the outer chamber 52 has a shallower draft.

[0031] Simultaneously, the independent movement of the inner air chamber 51 can also switch between single and dual air chambers. During switching, the outer air chamber 52 always remains in working state, meaning the flow regulating component 8 ensures that the second air hole 521 on the outer air chamber 52 always remains open, while the opening and closing of the first air hole 511 on the inner air chamber 51 is adjusted by the flow regulating component 8 according to different wave conditions. It is worth noting that, according to the different maximum power generation rates of the turbine power generation mechanism 7 corresponding to different wave conditions, the flow regulating component 8 controls the optimal opening ratio of the first air hole 511 and the second air hole 521 while controlling the switching between single and dual air chambers, so that the efficiency of the turbine power generation mechanism 7 reaches its maximum. In this embodiment, the switching between single and dual air chambers of the dual-chamber oscillating water column wave energy component 5 is jointly determined by the lifting position of the inner air chamber 51 and the opening and closing status of the first air hole 511.

[0032] When the wave state is a long wave, the control terminal 41 sends an electrical signal to the lifting drive mechanism 6. The inner air chamber 51 moves upward due to the action of the lifting drive mechanism 6. When the inner air chamber 51 moves to a certain distance from the water surface at its lowest point, the control terminal 41 sends an electrical signal to the flow regulating component 8. The flow regulating component 8 adjusts the first air hole 511 to a completely closed state and adjusts the second air hole 521 to the optimal opening ratio, thereby forming a single air chamber.

[0033] The combined effect of the inner air chamber 51 moving upward and separating from the water surface and the first air hole 511 on the inner air chamber 51 closing makes the inner air chamber 51 and the outer air chamber 52 no longer form two independent air chambers, but instead form a new single air chamber. This allows the dual-air chamber oscillating water column wave energy conversion component to better absorb long-wave energy and reduce the energy loss caused by the multi-air chamber structure.

[0034] When the wave state is shortwave, the control terminal 41 sends an electrical signal to the lifting drive mechanism 6. The inner air chamber 51 moves downward due to the action of the lifting drive mechanism 6. When the draft of the inner air chamber 51 exceeds that of the outer air chamber 52, the control terminal 41 sends an electrical signal to the flow regulating component 8. The flow regulating component 8 adjusts the first air hole 511 and the second air hole 521 to achieve the optimal opening ratio, forming a double air chamber.

[0035] At this time, the gas in the inner air chamber 51 and the outer air chamber 52 undergoes relatively independent compression and expansion processes. Under the dual-chamber operation, the sloshing motion of the water in the inner air chamber 51 and the outer air chamber 52 can be suppressed, thereby enhancing the piston motion of the water column and improving the energy conversion efficiency of the device.

[0036] If there is water in the inner air chamber 51 and the water depth does not exceed that of the outer air chamber 52, although it is still a dual-chamber structure, the equivalent length of the water column in the inner air chamber 51 is different from that in the outer air chamber 52 because the water depth of the inner air chamber 51 is significantly smaller than that in the outer air chamber 52. This results in different natural frequencies of the two air chambers, and the two air chambers cannot resonate at the same time. At this time, the power generation efficiency of the device is reduced, which can be regarded as a low-power operating condition.

[0037] In a preferred embodiment, a first conduit 201 and a second conduit 202 are fixedly disposed at the bottom of the base 2. A first sleeve 514 is fixedly disposed on the inner air chamber 51, and a second sleeve 524 is fixedly disposed on the outer air chamber 52. The first sleeve 514 is sleeved on the outside of the first conduit 201, and the second sleeve 524 is sleeved on the outside of the second conduit 202. A lifting drive mechanism 6 is disposed between the first sleeve 514 and the first conduit 201, and between the second sleeve 524 and the second conduit 202. The lifting drive mechanism 6 includes a slide rail 600 and a first electric slider 601. The first electric slider 601 is used for controllable lifting and lowering movement along the slide rail 600. The slide rail 600 is fixedly connected to the corresponding first conduit 201 and the corresponding second conduit 202, and the first electric slider 601 is fixedly connected to the corresponding first sleeve 514 and the corresponding second sleeve 524.

[0038] Based on this implementation, the lifting drive mechanism 6 can realize the relative movement of the first sleeve 514 and the first duct 201, as well as the relative movement of the second sleeve 524 and the second duct 202, thereby changing the distance between the inner air chamber 51 and the outer air chamber 52 and the base 2 of the fan assembly 3. Furthermore, the lifting drive mechanism 6 can ensure, based on its own structure, that the inner air chamber 51 and the outer air chamber 52 are positioned and fixed after moving to the required position.

[0039] Furthermore, in conjunction with the foregoing, in this embodiment, one of the conditions for switching between single and dual air chambers is that the opening degree of the first air hole 511 and the second air hole 521 is adjusted by the flow regulating component 8. In a preferred embodiment, the flow regulating component 8 includes a motor, a first swing arm 801, and a first baffle 802 corresponding to the first air hole 511, and a motor, a second swing arm 811, and a second baffle 812 corresponding to the second air hole. The motors are correspondingly and fixedly mounted on the inner air chamber 51 and the outer air chamber 52, and are electrically connected to the control terminal 41. One end of the first swing arm 801 is connected to the output end of the corresponding motor, and the other end of the first swing arm 801 is fixedly connected to the first baffle 802; the motor drives the first swing arm 801 to swing to adjust the degree of obstruction of the first air hole 511 by the first baffle 802. One end of the second swing arm 811 is connected to the output end of the corresponding motor, and the other end of the second swing arm 811 is fixedly connected to the second baffle 812; the motor drives the second swing arm 811 to swing to adjust the degree of obstruction of the second air hole 521 corresponding to the second baffle 812.

[0040] Based on this implementation, the working principle of the flow regulation component 8 is as follows: the first swing arm 801 and the second swing arm 811 are controlled by a motor to swing, thereby adjusting the first baffle 802 and the second baffle 812 to move away from or block the first air hole 511 and the second air hole 521, thus adjusting the degree of blocking of the first air hole 511 and the second air hole 521 by the first baffle 802 and the second baffle 812, thereby adjusting the opening and closing of the first air hole 511 and the second air hole 521. The second air hole 521 is always kept open. Furthermore, it can be understood that the different degrees of blocking of the first air hole 511 and the second air hole 521 by the first baffle 802 and the second baffle 812 can further adjust the intake air flow into the turbine power generation mechanism 7, thereby adjusting the power generation power of the turbine power generation mechanism 7.

[0041] In this embodiment, the inner air chamber 51 needs to move up and down relative to the outer air chamber 52 through the through hole 523. In order to prevent air leakage at the through hole 523 caused by the up and down movement of the inner air chamber 51, in a preferred embodiment, a sealing ring 500 is provided between the inner air chamber 51 and the outer air chamber 52, and the sealing ring 500 is located at the through hole 523 to ensure the stability of the gas.

[0042] In another improved embodiment, a vertical reflection focusing and load reduction component 10 is provided on the jacket 1, and the vertical reflection focusing and load reduction component 10 is located below the dual-chamber oscillating water column wave energy component 5. The vertical reflection focusing and load reduction component 10 includes a fixed platform 1001, which is fixed to the jacket 1. The fixed platform 1001 is provided with a vent hole 1002, and an iris valve 1003 is provided at the vent hole 1002. The iris valve 1003 is electrically connected to the control terminal 41 and is used to control the opening status of the vent hole 1002.

[0043] In this implementation, the iris valve 1003 controls the opening and closing of the vent 1002 by controlling the rotating blades on the iris valve 1003 through the control terminal 41 and the power supply module 42, in order to adapt to the needs of different sea conditions.

[0044] For example, under operating sea conditions, the vertical reflection energy-concentrating load-reducing component 10 is adjusted to close all iris valves 1003, thereby reflecting vertical wave energy to the dual-chamber oscillating water column wave energy component 5, improving energy conversion efficiency. Under surviving sea conditions, it is adjusted to open all iris valves 1003, causing the fixed platform 1001 to form an open plate structure, dissipating wave energy and ensuring the overall safety of the mechanism.

[0045] In other embodiments, a coupling base 101 is provided on the jacket 1, which is located below the base 2. Both the coupling base 101 and the base 2 are fixedly provided with annular slide rail assemblies 102. The annular slide rail assembly 102 is electrically connected to the control terminal 41. The annular slide rail assembly 102 includes an annular guide rail, on which a second electric slider is movably disposed. It also includes an energy-concentrating plate 9, which is arc-shaped. The concave surface of the energy-concentrating plate 9 faces the dual-chamber oscillating water column wave energy assembly 5. The energy-concentrating plate 9 is drivenly connected to the second electric slider to move along the circumference of the jacket 1.

[0046] Therefore, through the design of the annular slide rail assembly 102 and the energy-concentrating plate 9, under working sea conditions, the position of the energy-concentrating plate 9 can be rotated by the annular slide rail assembly 102 according to the direction of the incident wave, so that the wave is incident on the energy-concentrating plate 9 in the forward direction, and the energy-concentrating plate 9 can reflect the wave to the dual-chamber oscillating water column wave energy component 5, thereby achieving excellent energy concentration effect.

[0047] Furthermore, a vertical slide rail assembly 103 is provided between the annular slide rail assemblies 102, and the vertical slide rail assembly 103 is electrically connected to the control terminal 41; the vertical slide rail assembly 103 includes a vertical guide rail, and a third electric slider is movably arranged on the vertical guide rail, and the third electric slider is drivenly connected to at least one side of the energy-concentrating plate 9 so that the energy-concentrating plate 9 moves up and down along the vertical guide rail.

[0048] Therefore, by further designing the vertical slide rail assembly 103, under operating sea conditions, the energy-concentrating plate 9 installed on the side of the jacket 1 can first descend to a suitable position along the vertical guide rail. Combined with the operation of the aforementioned annular slide rail assembly 102, the position of the energy-concentrating plate 9 is rotated according to the incident wave direction, ensuring that the wave is incident on the energy-concentrating plate 9 in a positive direction, thus achieving the optimal energy-concentrating effect. Furthermore, the energy-concentrating effect can be further optimized by combining it with the aforementioned vertical reflection energy-concentrating load reduction assembly 10. Specifically, the vertical reflection energy-concentrating load reduction assembly 10 is adjusted to close all iris valves 1003, thereby reflecting vertical wave energy to the dual-chamber oscillating water column wave energy assembly 5, further improving energy conversion efficiency.

[0049] Clearly, based on the foregoing, the dual-chamber oscillating water column wave energy component 5 moves up and down via the lifting drive mechanism 6. This allows it to adapt to tidal changes and alter the structural draft, adjusting the resonant frequency of the water column to suit the current incident wave frequency, thus stimulating resonance and improving the wave energy conversion efficiency of the device. Furthermore, according to the characteristics of waves in different seasons, the internal air chamber 51 can move up and down via the lifting drive mechanism 6, switching between single and dual air chamber configurations, enabling the device to generate electricity efficiently under various sea conditions.

[0050] In extreme sea conditions, the integrated device prioritizes safety. The lateral energy-concentrating plate 9 slides upward away from the water surface to a safe position; the blades of the iris valve 1003 on the fixed platform 1001 rotate and open, creating an opening to increase wave energy dissipation; the dual-chamber oscillating water column wave energy component 5 moves upward away from the sea surface to reduce the impact of waves on the device, thereby ensuring its survivability in extreme sea conditions.

[0051] Preferably, this embodiment also includes a wind speed monitoring sensor 104 and a laser wavefront displacement sensor 105. The wind speed monitoring sensor 104 and the laser wavefront displacement sensor 105 are electrically connected to the control terminal 41 and are located on the tower 302 of the wind turbine assembly 3, above the sea surface. Generally, it is necessary to ensure that the wind speed monitoring sensor 104 and the laser wavefront displacement sensor 105 are at a certain height above the sea surface to ensure their effective operation.

[0052] Therefore, the laser wavefront displacement sensor 105 and the wind speed monitoring sensor 104 can measure the actual wavefront conditions and the current wind speed. The control terminal 41 can then perform calculations based on the obtained data to estimate the current wave conditions and predict the wave conditions in the next few minutes. Based on this, the control terminal 41 and the power supply module 42 can adjust the movement of the inner air chamber 51 and the outer air chamber 52, the rotation of the blades in the iris valve 1003, the movement and rotation of the energy-concentrating plate 9, and the action of the flow regulation component 8 according to the wave conditions.

[0053] Understandably, the movement of the inner air chamber 51 and outer air chamber 52, the rotation of the blades in the iris valve 1003, the movement and rotation of the energy-concentrating plate 9, and the action of the flow regulation component 8 in this integrated device are all regulated by the control terminal 41 and the power supply module 42. While the dual-chamber oscillating water column wave energy component 5 is working, the fan component 3 is also generating electricity under the action of wind, allowing the entire integrated device to generate electricity simultaneously without interfering with each other.

[0054] In summary, the integrated device of this embodiment connects the offshore wind turbine assembly 3 and the dual-chamber oscillating water column wave energy assembly 5 to form an integrated "wind-wave" power generation device. Under extreme sea conditions, the dual-chamber oscillating water column wave energy assembly 5 moves upward via the lifting drive mechanism 6, and the energy-concentrating plate 9 slides upward via the vertical slide rail assembly 103, thereby moving away from the sea surface and to a safe position; the vertical reflection energy-concentrating load-reducing assembly 10 opens the permeable hole 1002 to increase wave energy dissipation, thereby reducing the impact on the dual-chamber oscillating water column wave energy assembly 5 under extreme sea conditions and ensuring structural safety.

[0055] Meanwhile, the dual-chamber oscillating water column wave energy component 5 can move up and down via the lifting drive mechanism 6. This allows it to adapt to tidal changes and adjust its draft to suit wave conditions, thereby improving the wave energy conversion efficiency of the device. The lifting drive mechanism 6 can also control the raising and lowering of the inner air chamber 51 to switch between single and dual chambers, thus intensifying the oscillation of air within the chamber and improving conversion efficiency. Simultaneously, the flow regulation component 8 adjusts the size of the first air hole 511 and the second air hole 521 to achieve the optimal opening ratio required by the turbine power generation mechanism 7, further improving conversion efficiency. Furthermore, the rotation of the energy-concentrating plate 9 along the annular slide rail assembly 102 allows waves to be directed into the concave position of the energy-concentrating plate 9 for energy concentration; the closure of the iris valve 1003 further enhances the wave energy concentration effect, achieving at least five ways to improve the conversion efficiency of the dual-chamber oscillating water column wave energy device. In other words, it achieves improved wave energy generation efficiency through a combination of measures including adapting to tidal changes, adapting to wave conditions, enhancing air chamber resonance, adapting to airflow conditions, and energy concentration.

[0056] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device, comprising a jacket (1), wherein a wind turbine assembly (3) is mounted on the top of the jacket (1) via a base (2), characterized in that, A control terminal (41) is provided on the base (2), a dual-chamber oscillating water column wave energy component (5) is provided below the base (2), and a lifting drive mechanism (6) is provided between the base (2) and the dual-chamber oscillating water column wave energy component (5). The dual-chamber oscillating water column wave energy component (5) includes an inner chamber (51) and an outer chamber (52). The inner chamber (51) includes a first cavity (510) with a bottom opening and a first air hole (511) is provided on the top of the inner chamber (51). The outer air chamber (52) is sleeved on the outside of the inner air chamber (51). The outer air chamber (52) includes a second cavity (520) with an opening at the bottom. The top of the outer air chamber (52) is provided with a second air hole (521). The middle part of the outer air chamber (52) is provided with a through hole (523). The through hole (523) allows the inner air chamber (51) to pass through so that the inner air chamber (51) can move up and down relative to the outer air chamber (52). The axial length of the outer air chamber (52) is less than the axial length of the inner air chamber (51). Both the inner air chamber (51) and the outer air chamber (52) are provided with turbine power generation mechanisms (7), and the air inlets of each turbine power generation mechanism (7) are connected to the corresponding first cavity (510) and second cavity (520) through the first air hole (511) and the second air hole (521), respectively. A flow regulating component (8) is provided at the first air hole (511) and the second air hole (521), and the flow regulating component (8) is used to adjust the opening degree of the first air hole (511) and the second air hole (521). The lifting drive mechanism (6), the turbine power generation mechanism (7), and the flow regulation component (8) are all electrically connected to the control terminal (41).

2. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, The base (2) is fixedly provided with a first conduit (201) and a second conduit (202) at its bottom. The inner air chamber (51) is fixedly provided with a first sleeve (514) and the outer air chamber (52) is fixedly provided with a second sleeve (524). The first sleeve (514) is sleeved on the outside of the first conduit (201) and the second sleeve (524) is sleeved on the outside of the second conduit (202). The lifting drive mechanism (6) is provided between the first sleeve (514) and the first conduit (201) and between the second sleeve (524) and the second conduit (202). The lifting drive mechanism (6) includes a slide rail (600) and a first electric slider (601). The first electric slider (601) is used to move in a controllable manner along the slide rail (600). The slide rail (600) is fixedly connected to the corresponding first conduit (201) and second conduit (202). The first electric slider (601) is fixedly connected to the corresponding first sleeve (514) and second sleeve (524).

3. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, The flow regulation component (8) includes a motor, a first swing arm (801), and a first baffle (802) corresponding to the first air hole (511), and a motor, a second swing arm (811), and a second baffle (812) corresponding to the second air hole (521). The motor is fixedly installed on the inner air chamber (51) and the outer air chamber (52) and is electrically connected to the control terminal (41). One end of the first swing arm (801) is connected to the output end of the corresponding motor, and the other end of the first swing arm (801) is fixedly connected to the first baffle (802); the motor drives the first swing arm (801) to swing to adjust the degree of obstruction of the first baffle (802) to the first air hole (511); One end of the second swing arm (811) is connected to the output end of the corresponding motor, and the other end of the second swing arm (811) is fixedly connected to the second baffle (812); the motor drives the second swing arm (811) to swing to adjust the degree of obstruction of the second air hole (521) corresponding to the second baffle (812).

4. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, A coupling base (101) is provided on the guide frame (1), the coupling base (101) is located below the base (2), and an annular slide rail assembly (102) is fixedly provided on the outer periphery of both the coupling base (101) and the base (2). The annular slide rail assembly (102) is electrically connected to the control terminal (41). The annular slide rail assembly (102) includes an annular guide rail, and a second electric slider is movably provided on the annular guide rail. It also includes an energy-concentrating plate (9), which is arc-shaped and has its concave surface facing the dual-chamber oscillating water column wave energy assembly (5). The energy-concentrating plate (9) is connected to the second electric slider to move circumferentially along the guide frame (1).

5. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 4, characterized in that, A vertical slide rail assembly (103) is provided between the annular slide rail assemblies (102), and the vertical slide rail assembly (103) is electrically connected to the control terminal (41); the vertical slide rail assembly (103) includes a vertical guide rail, and a third electric slider is movably arranged on the vertical guide rail. The third electric slider is drivenly connected to at least one side of the energy-concentrating plate (9) so that the energy-concentrating plate (9) moves up and down along the vertical guide rail.

6. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, A vertical reflection energy-concentrating load reduction component (10) is provided on the guide frame (1), and the vertical reflection energy-concentrating load reduction component (10) is located below the dual-chamber oscillating water column wave energy component (5). The vertical reflective energy-concentrating load-reducing component (10) includes a fixed platform (1001), which is fixed on the guide frame (1). The fixed platform (1001) is provided with a through hole (1002), and an iris valve (1003) is provided at the through hole (1002). The iris valve (1003) is electrically connected to the control terminal (41) and is used to control the opening status of the through hole (1002).

7. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, A sealing ring (500) is provided between the inner air chamber (51) and the outer air chamber (52), and the sealing ring (500) is located at the through hole (523).

8. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, It also includes a wind speed monitoring sensor (104) and a laser wavefront displacement sensor (105), which are electrically connected to the control terminal (41) and located on the wind turbine assembly (3) above the sea surface.

9. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, The wind turbine assembly (3) includes wind turbine blades (300), a generator nacelle (301), and a tower (302); the tower (302) is fixed to the top of the jacket frame (1), the generator nacelle (301) is disposed on the top of the tower (302), and the wind turbine blades (300) are connected to the input end of the generator nacelle (301).

10. The integrated device for an offshore wind turbine and a dual-chamber oscillating water column wave energy device according to claim 1, characterized in that, It also includes a power supply module (42), which is electrically connected to the control terminal (41).

Images