A tidal energy vibration reduction power generation device for an offshore wind power platform and its use method

Abstract

The present invention discloses a tidal energy vibration reduction power generation device for an offshore wind power platform and its use method. The device is truncated and fixedly mounted on a pile. It includes a bottom plate and a top plate. The top plate has a larger diameter than the bottom plate. Both sides of the top plate are connected to a working platform above the pile by cables. A connecting structure is provided between the top plate and the bottom plate. An annular locking structure is coaxially provided on the top of the top plate. The annular locking structure is mounted on the pile. The side walls of the connecting structure are evenly provided with trumpet-shaped flow guide structures. An impeller is provided inside the connecting structure. The impeller mounting shaft is fixedly connected to a generator. The generator is connected to the wind power platform's power storage device. This device reduces the vibration amplitude of the pile caused by water flow, realizes tidal energy generation, and can adjust the height of the power generation device according to the tide to maintain power generation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration reduction power generation, and in particular to a tidal energy vibration reduction power generation device for an offshore wind power platform and a method for using the device. Background Art

[0002] With the increasing global demand for clean energy, offshore wind power has attracted widespread attention as an environmentally friendly and sustainable energy source. However, during actual operation, offshore wind power platforms are often subject to severe vibrations due to natural factors such as tides, waves, and currents. This not only affects the stable operation of wind turbines, but can also shorten the equipment's lifespan and increase maintenance costs.

[0003] Currently, common vibration reduction measures for offshore wind turbine platforms include passive and active vibration reduction. Passive vibration reduction typically uses mechanical structures such as vibration isolation pads and dampers to absorb and dissipate vibration energy. However, the vibration reduction effect is limited and cannot cope with complex changes in the marine environment. In particular, under the influence of tides, waves, and currents, the platform may still experience significant vibration. Active vibration reduction uses sensors and control systems to monitor the platform's vibration status in real time and uses actuators such as hydraulic cylinders and electric motors to make dynamic adjustments to offset vibration. However, the system is complex, costly, and requires continuous power supply, which increases maintenance difficulties and operating costs.

[0004] Furthermore, existing vibration reduction devices generally lack effective energy recovery mechanisms, resulting in a significant amount of vibration energy generated during the reduction process being wasted and not effectively utilized. Meanwhile, while some research has attempted to harness tidal energy for power generation, these solutions have primarily focused on large-scale tidal power stations and are difficult to directly apply to small-scale vibration energy recovery on offshore wind turbines. Summary of the Invention

[0005] The technical problem to be solved by the present invention is.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a tidal energy vibration reduction power generation device for an offshore wind power platform, which is in the shape of a cone and fixedly mounted on a sunken pile, including a chassis and a top plate. The diameter of the top plate is larger than the diameter of the chassis. The two sides of the top plate are connected to the working platform on the upper part of the sunken pile by cables. A connecting structure is provided between the top plate and the chassis. An annular locking structure is coaxially provided on the top of the top plate. The annular locking structure is mounted on the sunken pile. The side walls of the connecting structure are evenly provided with trumpet-shaped guide structures. An impeller is provided on the inner side of the connecting structure. The impeller mounting shaft is fixedly connected to a generator, and the generator is connected to the power storage device of the wind power platform.

[0007] Preferably, the connecting structure includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate form an elliptical support column, the support column is arranged along the tangent direction of the chassis, and the bottom diameter of the support column is smaller than the top diameter, the support columns are evenly distributed around the axis of the chassis, and the impeller is located between adjacent support columns.

[0008] Preferably, a truncated cone-shaped mounting platform is coaxially fixedly provided on the inner side of the chassis, and the impeller is arranged to rotate perpendicular to the inclined surface of the mounting platform.

[0009] Preferably, a gap is provided between the inner side of the mounting platform and the sunken piles, and a support grid is fixedly provided in the gap.

[0010] Preferably, a fan-shaped connecting plate is coaxially fixedly connected to the top of the top plate, a fixing plate is vertically fixed on the inner side of the connecting plate, the fixing plate is attached to the pile, the connecting plates are evenly distributed around the axis of the top plate, and a diagonal support column is provided between the connecting plate and the fixing plate.

[0011] Preferably, the top side wall of the fixing plate is provided with an inclined surface, the pile is provided with an annular locking ring, the inner side of the locking ring is provided with a wedge-shaped surface adapted to the inclined surface, the top of the fixing plate is provided with a threaded hole, and the locking ring is provided with a connecting hole corresponding to the threaded hole.

[0012] Preferably, the connecting plate of the top plate is in a ring shape.

[0013] Preferably, a circle of blocking net is arranged on the outside of the connecting structure.

[0014] A method for using a tidal energy vibration reduction power generation device on an offshore wind power platform comprises the following steps:

[0015] Step 1: Connect cables to both sides of the top plate, and lower the shock-absorbing power generation device by unwinding the cables, so that the bottom plate of the shock-absorbing power generation device moves below the sea level and the top plate is above the sea level;

[0016] Step 2: Place the lock ring cover on the fixing plate on top of the connecting plate, rotate the lock ring so that the connecting hole on the lock ring corresponds to the threaded hole on the top of the fixing plate, and then tighten the bolts so that the inner wedge surface of the lock ring is in close contact with the inclined surface on the top of the fixing plate, pressing the fixing plate tightly onto the pile.

[0017] Step 3: Connect the generator to the power storage device of the wind power platform and monitor the power of the generator;

[0018] Step 4: Later, according to the rise and fall of sea level, loosen the connection between the locking ring and the fixed plate, adjust the height of the chassis through the cable, and then lock it.

[0019] The present invention provides a tidal energy vibration reduction power generation device for an offshore wind power platform and a method for using the device, which has the following beneficial effects.

[0020] 1. The design of the trumpet-shaped diversion structure and support columns can effectively guide and disperse the water flow, reduce the direct impact of the water flow on the platform, and reduce the vibration amplitude.

[0021] 2. The top plate is connected to the working platform above the pile by cables, and the height of the device can be flexibly adjusted according to changes in sea level to ensure vibration reduction effect.

[0022] 3. The impeller is installed between adjacent support columns and rotated perpendicular to the inclined surface of the mounting platform. According to the water flow conditions in the tide, the water flows from bottom to top. It can rotate efficiently under the action of the water flow, drive the generator to work, and convert vibration energy into electrical energy.

[0023] 4. A support grid is set in the gap between the inner side of the mounting platform and the sunken pile to ensure smooth water flow, further improve the rotation efficiency of the impeller and increase power generation.

[0024] 5. Each component is easy to disassemble and assemble, facilitating daily maintenance and overhaul, reducing user costs and inconvenience. The locking ring is designed to fit snugly against the wedge-shaped surface of the top bevel of the fixing plate, and secure locking is achieved by tightening the bolts, ensuring the stability of the device in different sea conditions.

[0025] 6. Through the cooperation of cables and locking rings, the safety ladder can be quickly installed and disassembled, reducing installation time and improving work efficiency.

[0026] 7. A circle of blocking net is arranged on the outside of the connecting structure to prevent foreign objects from entering the device and protect the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and examples:

[0028] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0029] Figure 2 Schematic diagram of the structure of the connecting plate in an embodiment of the present invention.

[0030] Figure 3 2 is a horizontal cross-sectional view of the first guide plate and the second guide plate in an embodiment of the present invention.

[0031] Figure 4 Schematic diagram of the structure of the power generation module in an embodiment of the present invention.

[0032] In the figure: 1. Sunk pile; 2. Chassis; 3. First guide plate; 4. Second guide plate; 5. Top plate; 6. Connecting plate; 7. Diagonal support column; 8. Locking ring; 9. Inclined platform; 10. Mounting platform; 11. Impeller; 12. Generator. DETAILED DESCRIPTION

[0033] like Figure 1-4 As shown, the present invention provides a tidal energy vibration reduction power generation device for an offshore wind power platform, which is in a frustum shape and fixedly mounted on a pile 1, comprising a bottom plate 2 and a top plate 5, wherein the diameter of the top plate 5 is larger than that of the bottom plate 2, and both sides of the top plate 5 are connected to a working platform on the top of the pile 1 by cables, a connecting structure is provided between the top plate 5 and the bottom plate 2, and an annular locking structure is coaxially provided on the top of the top plate 5, and the annular locking structure is mounted on the pile 1, and the side walls of the connecting structure are evenly provided with trumpet-shaped guide structures, and an impeller 11 is provided on the inner side of the connecting structure, and a generator 12 is fixedly connected to the mounting shaft of the impeller 11, and the generator 12 is connected to the power storage device of the wind power platform.

[0034] The top plate 5 is locked on the pile 1 by the annular locking structure. After the bottom plate 2 in the power generation device is lifted into place by the cable, the top plate 5 is locked by the annular locking structure, thereby fixing the power generation device.

[0035] The device is in the shape of a truncated cone and is fixedly mounted on the pile 1. It comprises a bottom plate 2 and a top plate 5. The diameter of the top plate 5 is larger than that of the bottom plate 2, so that the whole device has good stability and a streamlined design, reducing water flow resistance.

[0036] Both sides of the top plate 5 are connected to the working platform on the upper part of the pile 1 by cables, which ensures the stability of the device under different sea conditions and facilitates the lifting and lowering adjustment of the power generation device.

[0037] Bell-mouth-shaped diversion structure: The side walls of the connecting structure are evenly provided with bell-mouth-shaped diversion structures, which can effectively guide and disperse the water flow, reduce the direct impact of the water flow on the platform, and reduce the vibration amplitude.

[0038] The generator 12 is fixedly connected to the mounting shaft of the impeller 11 and is connected to the power storage device of the wind power platform to convert vibration energy into electrical energy to provide additional power support for the platform. Impeller arrangement: The impeller 11 is located between adjacent support columns and is arranged to rotate perpendicular to the inclined surface of the mounting platform 10. It can rotate efficiently under the action of water flow to drive the generator 12 to work.

[0039] like Figure 1 and Figure 3As shown. The connecting structure includes a first guide plate 3 and a second guide plate 4, which form support columns with an elliptical structure. The support columns are arranged along the tangent direction of the chassis 2, and the bottom diameter of the support columns is smaller than the top diameter. The support columns are evenly distributed around the axis of the chassis 2, and the impeller 11 is located between adjacent support columns. The first guide plate 3 and the second guide plate 4 form support columns with an elliptical structure. The support columns are arranged along the tangent direction of the chassis 2, and the bottom diameter of the support columns is smaller than the top diameter. The support columns are evenly distributed around the axis of the chassis 2. This design not only enhances the structural strength, but also optimizes the water flow path, further improving the vibration reduction effect.

[0040] like Figure 3 and Figure 4 A truncated cone-shaped mounting platform 10 is coaxially fixed on the inner side of the chassis 2, and the impeller 11 is arranged to rotate perpendicularly to the inclined surface of the mounting platform 10. A truncated cone-shaped mounting platform 10 is coaxially fixed on the inner side of the chassis 2, and the impeller 11 is arranged to rotate perpendicularly to the inclined surface of the mounting platform 10 to ensure smooth water flow.

[0041] like Figure 3 A gap is provided between the inner side of the mounting platform 10 and the sunken pile 1, within which a support grid is fixed. A gap is provided between the inner side of the mounting platform 10 and the sunken pile 1, within which a support grid is fixed, ensuring smooth water flow, further improving the rotation efficiency of the impeller and increasing power generation.

[0042] like Figure 1 As shown, a fan-shaped connecting plate 6 is coaxially fixed to the top of the top plate 5. A fixing plate is vertically fixed to the inner side of the connecting plate 6. The fixing plate is attached to the pile 1. The connecting plates 6 are evenly distributed around the axis of the top plate 5. Diagonal bracing columns 7 are provided between the connecting plates 6 and the fixing plates. The installation of diagonal bracing columns 7 between the connecting plates 6 and the fixing plates increases the overall rigidity of the structure and ensures the stability of the device in complex sea conditions.

[0043] like Figure 2 As shown. The top sidewall of the fixing plate is provided with an inclined surface, and the pile 1 is fitted with an annular locking ring 8. The inner side of the locking ring 8 is provided with a wedge-shaped surface that matches the inclined surface. The top of the fixing plate is provided with a threaded hole, and the locking ring 8 is provided with a connecting hole that corresponds to the threaded hole. The top sidewall of the fixing plate is provided with an inclined surface, and the pile 1 is fitted with an annular locking ring 8. The inner side of the locking ring 8 is provided with a wedge-shaped surface that matches the inclined surface. The connecting hole in the locking ring 8 corresponds to the threaded hole at the top of the fixing plate, and a secure locking is achieved by tightening the bolts.

[0044] like Figure 1 The connecting plate 6 of the top plate 5 is formed into a ring.

[0045] As a preferred embodiment of the present invention, a circle of blocking nets is arranged on the outside of the connecting structure to prevent foreign objects from entering the device, protect the equipment safety, and play a certain anti-collision role.

[0046] A method for using a tidal energy vibration reduction power generation device on an offshore wind power platform comprises the following steps:

[0047] Step 1: Connect the top of the top plate 5 to both sides with cables, and lower the shock-absorbing power generation device by unwinding the cables, so that the bottom plate 2 of the shock-absorbing power generation device moves below the sea level and the top plate 5 is above the sea level;

[0048] Step 2: Place the lock ring 8 on the fixing plate on top of the connecting plate 6, rotate the lock ring 8 so that the connecting hole on the lock ring 8 corresponds to the threaded hole on the top of the fixing plate, and then tighten the bolts so that the inner wedge surface of the lock ring 8 is in close contact with the inclined surface on the top of the fixing plate, pressing the fixing plate onto the pile 1;

[0049] Step 3: Connect the generator 12 to the power storage device of the wind power platform and monitor the power of the generator 12;

[0050] Step 4: Later, according to the rise and fall of the sea level, first loosen the connection between the locking ring 8 and the fixing plate, adjust the height of the chassis 2 through the cable, and then lock it.

Claims

1. A tidal energy vibration reduction power generation device for an offshore wind power platform, characterized by: It is truncated and fixedly mounted on the pile (1), comprising a bottom plate (2) and a top plate (5), wherein the diameter of the top plate (5) is larger than that of the bottom plate (2), and both sides of the top plate (5) are connected to a working platform on the top of the pile (1) via cables, a connecting structure is provided between the top plate (5) and the bottom plate (2), an annular locking structure is coaxially provided on the top of the top plate (5), and the annular locking structure is mounted on the pile (1), and a trumpet-shaped flow guide structure is evenly provided on the side wall of the connecting structure, and an impeller (11) is provided inside the connecting structure, and a generator (12) is fixedly connected to the mounting shaft of the impeller (11), and the generator (12) is connected to the power storage device of the wind power platform; The connecting structure comprises a first guide plate (3) and a second guide plate (4), the first guide plate (3) and the second guide plate (4) enclosing a support column of an elliptical structure, the support column being arranged along the tangent direction of the chassis (2), the bottom diameter of the support column being smaller than the top diameter, the support columns being evenly distributed around the axis of the chassis (2), and the impeller (11) being located between adjacent support columns; A truncated cone-shaped mounting platform (10) is coaxially fixedly provided on the inner side of the chassis (2), a slope is provided on the top of the mounting platform (10), and the impeller (11) is arranged to rotate perpendicular to the slope on the top of the mounting platform (10); The top of the top plate (5) is coaxially fixedly connected to a fan-shaped connecting plate (6), the inner side of the connecting plate (6) is vertically fixed with a fixing plate, the fixing plate is attached to the pile (1), the connecting plates (6) are evenly distributed around the axis of the top plate (5), and a diagonal support column (7) is provided between the connecting plate (6) and the fixing plate; The top side wall of the fixing plate is provided with an inclined surface, and the pile (1) is provided with an annular locking ring (8), and the inner side of the locking ring (8) is provided with a wedge-shaped surface adapted to the inclined surface of the top of the fixing plate. The top of the fixing plate is provided with a threaded hole, and the locking ring (8) is provided with a connecting hole corresponding to the threaded hole. When connecting the locking ring (8), the locking ring (8) is placed on the fixing plate at the top of the connecting plate (6), and the locking ring (8) is rotated so that the connecting hole on the locking ring (8) corresponds to the threaded hole at the top of the fixing plate. Then, the locking ring (8) is tightened by a bolt so that the inner wedge-shaped surface of the locking ring (8) is in close contact with the inclined surface at the top of the fixing plate, and the fixing plate is pressed tightly onto the pile (1).

2. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: A gap is provided between the inner side of the mounting platform (10) and the sunken pile (1), and a support grid is fixedly provided in the gap.

3. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: The connecting plate (6) of the top plate (5) is formed into a ring.

4. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: A circle of blocking net is arranged on the outer side of the connecting structure.

5. The method for using the offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: The steps include: Step 1: Connect the two sides of the top of the top plate (5) with cables, and lower the shock-absorbing power generation device by unwinding the cables, so that the bottom plate (2) of the shock-absorbing power generation device moves below the sea level and the top plate (5) is located above the sea level; Step 2: Place the lock ring (8) cover on the fixing plate at the top of the connecting plate (6), rotate the lock ring (8) so that the connecting hole on the lock ring (8) corresponds to the threaded hole at the top of the fixing plate, and then tighten the bolts so that the inner wedge surface of the lock ring (8) is in close contact with the inclined surface at the top of the fixing plate, and press the fixing plate onto the pile (1); Step 3: Connect the generator (12) to the power storage device of the wind power platform and monitor the power of the generator (12); Step 4: Later, according to the rise and fall of the sea level, first loosen the connection between the locking ring (8) and the fixing plate, adjust the height of the chassis (2) through the cable, and then lock it.

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