Tidal energy vibration reduction power generation device for offshore wind power platform and use method of tidal energy vibration reduction power generation device

Abstract

The offshore wind power platform tidal energy vibration reduction power generation device is in a circular truncated cone shape, is fixedly arranged on a sunken pile in a sleeving mode and comprises a bottom disc and a top disc, the diameter of the top disc is larger than that of the bottom disc, the two sides of the top disc are connected with a working platform on the upper portion of the sunken pile through cables, and a connecting structure is arranged between the top disc and the bottom disc. An annular locking structure is coaxially arranged at the top of the top disc and sleeves the sunken pile, horn-mouth-shaped flow guide structures are uniformly arranged on the side wall of the connecting structure, an impeller is arranged on the inner side of the connecting structure, an impeller mounting shaft is fixedly connected with a generator, and the generator is connected into a power storage device of the wind power platform. The effect of reducing the vibration amplitude of water flow impact on pile sinking is achieved, tidal energy is utilized for power generation, the height of the power generation device can be adjusted according to the rising tide condition, and the power generation efficiency is maintained.

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 use method thereof. Background Art

[0002] As the global demand for clean energy continues to increase, offshore wind power has attracted widespread attention as an environmentally friendly and sustainable form of energy. However, during the actual operation of offshore wind power platforms, due to the influence of natural factors such as tides, waves and ocean currents, severe vibrations often occur, which not only affects the stable operation of wind turbines, but also may shorten the service life of the equipment and increase maintenance costs.

[0003] At present, the vibration reduction measures commonly used in offshore wind power platforms mainly include passive vibration reduction and active vibration reduction. Passive vibration reduction usually uses mechanical structures such as vibration isolation pads and dampers to absorb and consume vibration energy. However, the vibration reduction effect is limited and it is difficult to cope with complex changes in the marine environment. In particular, under the influence of tides, waves and currents, the platform may still experience large vibrations. Active vibration reduction uses sensors and control systems to monitor the vibration state of the platform in real time, and uses actuators such as hydraulic cylinders and motors to make dynamic adjustments to offset vibrations. However, the system is complex, costly, and requires continuous power supply, which increases the difficulty of maintenance and operating costs.

[0004] In addition, existing vibration reduction devices generally lack effective energy recovery mechanisms, and a large amount of vibration energy generated during the vibration reduction process is wasted and not effectively utilized. At the same time, although some studies have tried to use tidal energy for power generation, these solutions are mostly concentrated in large tidal power stations and are difficult to directly apply to small-scale vibration energy recovery on offshore wind power platforms. 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 a truncated cone shape and fixedly mounted on a sunken pile, including a bottom plate and a top plate, the diameter of the top plate is larger than the diameter of the bottom plate, and the two sides of the top plate are connected to the working platform on the top of the sunken pile by cables, a connecting structure is arranged between the top plate and the bottom plate, an annular locking structure is coaxially arranged 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 arranged on the inner side of the connecting structure, and 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 a support column with an elliptical structure. 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 perpendicularly 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 supporting 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 piles, the connecting plates are evenly distributed around the axis of the top plate, and diagonal support columns are 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 outer side 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: Step 1: Connect the two sides of the top plate with cables respectively, 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 located above the sea level; Step 2: Place the lock ring cover on the fixing plate at the top of the connecting plate, rotate the lock ring so that the connecting hole on the lock ring 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 is in close contact with the inclined surface at the top of the fixing plate, and press the fixing plate onto the pile; Step 3: Connect the generator to the power storage device of the wind power platform and monitor the power of the generator; Step 4: Later, according to the rise and fall of sea level, first loosen the connection between the locking ring and the fixing plate, adjust the height of the chassis through the cable, and then lock it.

[0015] The present invention provides a tidal energy vibration reduction power generation device for an offshore wind power platform and a use method thereof, which have the following beneficial effects.

[0016] 1. The design of the trumpet-shaped diversion structure and support column can effectively guide and disperse the water flow, reduce the direct impact of the water flow on the platform, and reduce the vibration amplitude.

[0017] 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.

[0018] 3. The impeller is installed between adjacent support columns and arranged to rotate perpendicular to the inclined surface of the mounting platform. According to the condition of the water flow 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 the vibration energy into electrical energy.

[0019] 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.

[0020] 5. Each component is easy to disassemble and assemble, which is convenient for daily maintenance and overhaul, reducing the cost and inconvenience of users. The lock ring is designed to fit closely with the wedge-shaped surface of the top slope of the fixing plate, and a firm lock is achieved by tightening the bolts, ensuring the stability of the device under different sea conditions.

[0021] 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.

[0022] 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

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0024] Figure 2 Schematic diagram of the structure of the connecting plate in an embodiment of the present invention.

[0025] Figure 3 It is a horizontal cross-sectional view of the first guide plate and the second guide plate in an embodiment of the present invention.

[0026] Figure 4 Schematic diagram of the structure of the power generation module in an embodiment of the present invention.

[0027] In the figure: 1. pile driving; 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

[0028] like Figure 1-4As shown, the present invention provides a tidal energy vibration reduction power generation device for an offshore wind power platform, which is in a truncated cone 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 the two sides of the top plate 5 are connected to a working platform on the top of the pile 1 by cables, and a connecting structure is arranged between the top plate 5 and the bottom plate 2, and an annular locking structure is coaxially arranged 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 arranged on the side wall of the connecting structure, and an impeller 11 is arranged 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.

[0029] 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 cables, the top plate 5 is locked by the annular locking structure, thereby fixing the power generation device.

[0030] 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 streamlined design, reducing water flow resistance.

[0031] Both sides of the top plate 5 are connected to the working platform on the upper part of the pile 1 by cables, so as to ensure the stability of the device under different sea conditions and facilitate the lifting and lowering adjustment of the power generation device.

[0032] Bell-mouth-shaped guide structure: The side walls of the connecting structure are evenly provided with bell-mouth-shaped guide 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.

[0033] The generator 12 is fixedly connected to the mounting shaft of the impeller 11 and 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.

[0034] like Figure 1 and Figure 3 As shown. The connection structure includes a first guide plate 3 and a second guide plate 4, which form a support column with an elliptical structure. The support column is arranged along the tangent direction of the chassis 2, 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 2, and the impeller 11 is located between adjacent support columns. The first guide plate 3 and the second guide plate 4 form a support column with an elliptical structure. The support column is arranged along the tangent direction of the chassis 2, and the bottom diameter is smaller than the top diameter, and is 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.

[0035] like Figure 3 and Figure 4 A truncated cone-shaped mounting platform 10 is coaxially fixedly arranged 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 fixedly arranged 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.

[0036] like Figure 3 As shown. 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. 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 to ensure smooth passage of water flow, further improve the rotation efficiency of the impeller, and increase power generation.

[0037] like Figure 1 As shown. The top of the top plate 5 is coaxially fixedly connected with a fan-shaped connecting plate 6, and a fixing plate is vertically fixed inside 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, and a diagonal brace column 7 is arranged between the connecting plate 6 and the fixing plate. The diagonal brace column 7 is arranged between the connecting plate 6 and the fixing plate, which increases the overall rigidity of the structure and ensures the stability of the device in complex sea conditions.

[0038] like Figure 2 As shown. 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. 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. 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. The connecting hole on the locking ring 8 corresponds to the threaded hole on the top of the fixing plate, and a secure locking is achieved by tightening the bolts.

[0039] like Figure 1 The connecting plate 6 of the top plate 5 is formed into a ring.

[0040] 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 safety of the equipment, and play a certain anti-collision role.

[0041] A method for using a tidal energy vibration reduction power generation device on an offshore wind power platform comprises the following steps: Step 1: Connect the two sides of the top of the top plate 5 with cables respectively, 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 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, 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 by the cable, and then lock it.

Claims

1. A tidal energy vibration reduction power generation device for an offshore wind power platform, characterized in that: The device 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 the two sides of the top plate (5) are connected to a working platform on the top of the pile (1) via cables, a connection structure is provided between the top plate (5) and the bottom plate (2), an annular locking structure is coaxially arranged on the top of the top plate (5), the annular locking structure is mounted on the pile (1), a trumpet-shaped flow guide structure is evenly arranged on the side wall of the connection structure, an impeller (11) is arranged on the inner side of the connection structure, a generator (12) is fixedly connected to the mounting shaft of the impeller (11), and the generator (12) is connected to a power storage device of the wind power platform.

2. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: The connection 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 base plate (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 base plate (2), and the impeller (11) being located between adjacent support columns.

3. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 2, characterized in that: A truncated cone-shaped mounting platform (10) is coaxially fixedly disposed 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).

4. The offshore wind power platform tidal energy vibration reduction power generation device as claimed in claim 3, characterized in that: A gap is provided between the inner side of the mounting platform (10) and the sunken pile (1), and a supporting grid is fixedly provided in the gap.

5. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 1, characterized in that: A fan-shaped connecting plate (6) is coaxially fixedly connected to the top of the top plate (5), a fixing plate is vertically fixed inside 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), and an oblique support column (7) is provided between the connecting plate (6) and the fixing plate.

6. The offshore wind power platform tidal energy vibration reduction power generation device according to claim 5, characterized in that: The top side wall of the fixing plate is provided with an inclined surface, the pile sinker (1) is provided with an annular locking ring (8), the inner side of the locking ring (8) is provided with a wedge-shaped surface adapted to the inclined surface, the top end 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.

7. An offshore wind power platform tidal energy vibration reduction power generation device as claimed in claim 5 or 6, characterized in that: The connecting plate (6) of the top plate (5) is formed into a ring.

8. 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.

9. A method for using a tidal vibration reduction power generation device for an offshore wind power platform as claimed in any one of claims 1 to 5, characterized in that: The steps include: Step 1: Connect the two sides of the top of the top plate (5) respectively 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) 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 the fixing plate is pressed against the pile (1); Step 3: connecting the generator (12) to the power storage device of the wind power platform and monitoring 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) by the cable, and then lock it.

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