Offshore wind power single pile foundation scouring protection and repair device
By designing energy conversion, air compression and drainage modules on the offshore wind power single pile foundation, the safety threat caused by the erosion of the offshore wind power single pile foundation is solved, and efficient utilization and erosion and repair of green energy is achieved.
Patent Information
- Application Number
- CN202510729168.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2025-07-08
AI Technical Summary
The operational safety threat caused by the offshore wind power single pile foundation is caused by the erosion of the seabed around the pile. The existing anti-swage technology is difficult to effectively combine green energy with economical and efficient protection and repair.
A erosion protection and repair device for offshore wind power single pile foundation is designed, and the flow energy of the seabed water into rotating kinetic energy is converted through the energy conversion module, and the air compression module and the pumping and drainage module are used to achieve soil consolidation and erosion repair, including the combination of energy conversion module, air compression module, pumping and drainage module and erosion repair module.
有效利用海洋动能进行冲刷防护与修复,提高风机运行安全,实现绿色环保且经济高效的防护效果。
Smart Images
Figure CN120273399A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of offshore wind power, and in particular to an offshore wind power single pile foundation scour protection and repair device. Background Art
[0002] Offshore wind power is a new type of clean energy with low pollution during operation. Compared with traditional power generation technology, offshore wind power can not only meet the energy needs of the current situation, but also significantly reduce the emission of pollutants, which meets the requirements of sustainable development, thus promoting the development of offshore wind power technology worldwide.
[0003] Offshore wind power monopile foundations are widely used due to their simple structure and convenient construction. However, the seabed around the piles is subject to long-term scouring caused by waves, tides, etc., threatening the safe operation of wind turbines. Scouring is mainly caused by the pile body blocking the water flow, which leads to faster flow velocity around the pile and increased shear stress, thus causing the movement and transportation of seabed sediment. At present, anti-scouring technology shows a diversified development trend, with more emphasis on modularization and convenient maintenance in structural design. How to make full use of marine green energy and develop green, environmentally friendly, economical and efficient composite anti-scouring devices is very necessary for scouring protection of wind power monopile foundations.
[0004] How to develop an offshore wind power single pile foundation scour protection and repair device, aiming to strengthen the integration of green energy technology and anti-scour engineering practice to achieve scour protection and scour pit repair, has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention
[0005] The purpose of the present invention is to provide an offshore wind power monopile foundation scour protection and repair device to solve the problems listed in the background technology.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention discloses an offshore wind power monopile foundation scour protection and repair device, comprising a monopile foundation, wherein energy conversion modules are evenly spaced on the seabed around the monopile foundation, wherein the lower surface of the energy conversion module is connected to a pumping and drainage module, and the pumping and drainage module extends into the seabed soil layer; An air compression module is slidably installed inside the energy conversion module, and the air compression module is communicated with the drainage module.
[0007] Preferably, the energy conversion module includes an external hollow barrel, a partition spoiler and a base, the base is fixed around the soil around the single pile foundation, the external hollow barrel is rotatably connected to the base via a rotating bearing, and the partition spoiler is vertically installed at equal intervals on the outer circumferential surface of the external hollow barrel.
[0008] Preferably, diversion channels are formed in the partition spoiler, and the opening direction of the diversion channels is parallel to the axis of the external hollow barrel.
[0009] Preferably, the air compression module includes a connecting rod member, a transmission gear, an internal hollow barrel, and a horizontal plate; The connecting rod member includes a T-shaped connecting rod, a vertical connecting rod, and an L-shaped connecting rod, and the transmission gear includes a horizontally arranged transmission gear and a vertically arranged transmission gear; The opposite ends of the T-shaped connecting rod are fixedly connected to the inner wall of the external hollow barrel, and the horizontally arranged transmission gear is horizontally connected to the free end of the T-shaped connecting rod; One end of the L-shaped connecting rod is connected to the outer side wall of the internal hollow barrel, and the other end of the L-shaped connecting rod is rotatably connected to the vertically arranged transmission gear through a bearing; The upper end of the vertical connecting rod is movably connected to the edge of the wheel surface of the vertically arranged transmission gear through a connecting block, and the lower end of the vertical connecting rod is hinged to the horizontal plate.
[0010] Preferably, the outer diameter of the horizontal plate is smaller than the inner diameter of the internal hollow barrel; The horizontally arranged transmission gear is in vertical contact with the vertically arranged transmission gear, and the horizontally arranged transmission gear meshes with the vertically arranged transmission gear; The connecting block is rotatably connected to the vertical connecting rod through a rotating shaft, and the connecting block is fixedly connected to the edge of the wheel surface of the vertically arranged transmission gear.
[0011] Preferably, the pumping and drainage module includes a negative pressure water extraction pipe, a drainage pipe, a limiting frame, and a metal sphere. The internal hollow barrel is communicated with the water outlet of the negative pressure water extraction pipe, and the negative pressure water extraction pipe penetrates into the seabed soil; The limiting frame is slidably connected to the water outlet end of the negative pressure water extraction pipe up and down; The water inlet of the drainage pipe is communicated with the bottom plate of the internal hollow barrel, and the water outlet of the drainage pipe is communicated with the external hollow barrel; The metal sphere includes a first metal sphere and a second metal sphere. The first metal sphere is placed at the water outlet of the negative pressure water extraction pipe, and the second metal sphere is placed at the water outlet of the drainage pipe.
[0012] Preferably, the side length of the limiting frame is slightly larger than the diameter of the first metal sphere, which can limit the rising position of the first metal sphere; The diameter of the first metal sphere is slightly larger than the diameter of the negative pressure water extraction pipe, and the diameter of the second metal sphere is slightly smaller than the diameter of the drainage pipe; The water outlet position of the negative pressure water extraction pipe is much higher than the base. Water absorption holes are formed in the side wall of the negative pressure water extraction pipe, and filter meshes are attached to the water absorption holes. The diameter of the filter mesh holes is smaller than the diameter of the sediment.
[0013] Preferably, it further includes a scouring repair module. The scouring repair module includes a vertical plate which is vertically connected to the outside of the external hollow barrel, and the upper end of the vertical plate is fixedly connected to the lower end of the partition spoiler. The installation position of the lower end of the vertical plate is higher than the surface of the seabed soil mass.
[0014] Compared with the prior art, the beneficial technical effects of the present invention are as follows: An offshore wind power monopile foundation scouring protection and repair device converts the impact kinetic energy of the seabed water flow into the rotational kinetic energy of the external hollow barrel through an energy conversion module; the transmission device of the air compression module uses the rotational kinetic energy of the external hollow barrel to drive the horizontal plate to move up and down, so that the sealed gas in the barrel alternately generates positive pressure and negative pressure, providing a prerequisite for the operation of the pumping and drainage module; the pumping and drainage module uses the pressure difference to pump out the water in the underground soil mass and then discharges the water into the sea water by using the pressure difference, so as to achieve the effect of accelerating soil consolidation; the vertical plate in the scouring repair module can drive the soil mass near the foundation to move along with the rotation of the external hollow barrel, so as to achieve the purpose of repairing the scoured area. Description of the Drawings
[0015] The present invention will be further described below in conjunction with the drawings.
[0016] Figure 1 It is a schematic diagram of the overall offshore wind power monopile foundation scouring protection and repair device of the present invention; Figure 2 It is an assembly schematic diagram of the scouring repair module and the energy conversion module of the present invention; Figure 3 It is a schematic diagram of the air compression module of the present invention; Figure 4 It is a partially enlarged schematic diagram of the air compression module of the present invention; Figure 5 It is a schematic diagram of the pumping and drainage module of the present invention; Figure 6 It is an assembly schematic diagram of the cross-section of the drain pipe and the metal sphere of the present invention.
[0017] Description of the reference numerals: 1, monopile foundation; 2, external hollow barrel; 3, partition spoiler; 31, diversion groove; 4, vertical plate; 5, foundation; 51, rotating bearing; 6, negative pressure water suction pipe; 61, water absorption hole; 7, connecting rod member; 71, T-shaped connecting rod; 72, vertical connecting rod; 73, L-shaped connecting rod member; 731, connecting block; 8, transmission gear; 81, horizontally placed transmission gear; 82, vertically placed transmission gear; 821, connecting block; 9, internal hollow barrel; 10, drain pipe; 11, horizontal plate; 12, limit frame; 13 metal sphere; 131, first metal sphere; 132, second metal sphere. Detailed Embodiments
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0019] As Figure 1-6 shown, a scour protection and repair device for an offshore wind power monopile foundation includes a monopile foundation 1. Energy conversion modules are equidistantly arranged on the seabed around the outer periphery of the monopile foundation 1. The lower surface of the energy conversion module is communicated with a drainage module, and the drainage module extends into the seabed soil layer; An air compression module is slidably installed inside the energy conversion module, and the air compression module is communicated with the drainage module.
[0020] As Figure 2 shown, the energy conversion module includes an external hollow barrel 2, partition flow deflectors 3 and a base 5. The base 5 is fixedly arranged around the soil on the periphery of the monopile foundation 1. The external hollow barrel 2 is rotatably connected to the base 5 through a rotating bearing 51. The partition flow deflectors 3 are vertically installed at equal intervals on the outer peripheral surface of the external hollow barrel 2. The seabed water flow impacts on the surface of the partition flow deflectors, thereby driving the external hollow barrel to rotate on the base, effectively converting the kinetic energy of the water flow and driving the entire system to work.
[0021] Specifically, diversion grooves 31 are formed on the partition flow deflectors 3. The opening direction of the diversion grooves 31 is parallel to the axis of the external hollow barrel 2. The diversion grooves can effectively intercept solid debris such as sediment in seawater, and the solid debris can sink along the diversion grooves to the soil near the base to participate in the soil repair work.
[0022] As Figure 3 shown, the air compression module includes a connecting rod member 7, a transmission gear 8, an internal hollow barrel 9, and a horizontal plate 11; The connecting rod member 7 includes a T-shaped connecting rod 71, a vertical connecting rod 72, and an L-shaped connecting rod 73. The transmission gear 8 includes a horizontally arranged transmission gear 81 and a vertically arranged transmission gear 82; Opposite ends of the T-shaped connecting rod 71 are fixedly connected to the inner wall of the external hollow barrel 2, so that the T-shaped connecting rod member can rotate at the same speed as the external hollow barrel, thereby driving the horizontally arranged transmission gear to rotate. The horizontally arranged transmission gear 81 is horizontally connected to the free end of the T-shaped connecting rod 71; One end of the L-shaped connecting rod 73 is connected to the outer side wall of the internal hollow barrel 9, and the other end of the L-shaped connecting rod 73 is rotatably connected to the vertically arranged transmission gear 82 through a bearing 731; The upper end of the vertical connecting rod 72 is movably connected to the edge of the wheel surface of the longitudinally arranged transmission gear 82 through a connecting block 821. The lower end of the vertical connecting rod 72 is hinged to the horizontal plate 11. The vertical connecting rod can perform a cyclic motion in the vertical direction according to the rotation of the second transmission gear. The horizontal plate performs a vertical cyclic motion along the inner wall of the inner hollow barrel with the cyclic motion of the vertical connecting rod, so as to form a sealed pressure chamber with variable pressure together with the inner hollow barrel.
[0023] As Figure 4 shown, the outer diameter of the horizontal plate 11 is equal to the inner diameter of the inner hollow barrel 9, so as to form a sealed space inside the inner hollow barrel; The horizontally arranged transmission gear 81 is in vertical contact with the longitudinally arranged transmission gear 82, and the horizontally arranged transmission gear 81 meshes with the longitudinally arranged transmission gear 82. The horizontally arranged transmission gear in the transmission gears rotates horizontally with the T-shaped connecting rod member, so as to drive the longitudinally arranged transmission gear to rotate; The connecting block 821 is rotatably connected to the vertical connecting rod 72 through a rotating shaft, and the connecting block 821 is fixedly connected to the edge of the wheel surface of the longitudinally arranged transmission gear 82; As Figure 5 shown, the pumping and drainage module includes a negative pressure water suction pipe 6, a drain pipe 10, a limit frame 12 and a metal sphere 13. The inner hollow barrel 9 is communicated with the water outlet of the negative pressure water suction pipe 6, and the negative pressure water suction pipe 6 penetrates into the seabed soil; The limit frame 12 is slidably connected to the water outlet end of the negative pressure water suction pipe 6 up and down. The side length of the limit frame is slightly larger than the diameter of the first metal sphere, which can limit the rising position of the first metal sphere. Further, the diameter of the first metal sphere is larger than the diameter of the negative pressure water suction pipe, and the diameter of the second metal sphere is smaller than the diameter of the drain pipe; The water inlet of the drain pipe 10 is communicated with the bottom plate of the inner hollow barrel 9, and the water outlet of the drain pipe 10 is communicated with the outer hollow barrel 2; As Figure 6 shown, the metal sphere 13 includes a first metal sphere 131 and a second metal sphere 132. The first metal sphere 131 is placed at the water outlet of the negative pressure water suction pipe 6, and the second metal sphere 132 is placed at the water outlet of the drain pipe 10; Further, when the horizontal plate moves upward, the pressure in the sealed pressure chamber decreases, and the negative pressure water suction pipe 6 starts to pump water. At this time, the first metal sphere 131 moves upward under the action of the pressure difference to open the water outlet of the negative pressure water suction pipe 6, and the second metal sphere 132 moves downward to block the water outlet of the drain pipe 10 to prevent seawater backflow; When the first metal sphere 131 rises to a certain position, it will be restricted by the limiting frame 12 and stop moving; during the downward movement of the horizontal plate 11, the pressure in the sealed pressure chamber increases, and the negative pressure water extraction pipe 6 stops pumping water. At this time, due to the pressure difference, the first metal sphere 131 moves downward to close the water outlet of the negative pressure water extraction pipe 6, and the second metal sphere 132 moves upward to open the water inlet of the drain pipe and then discharges water into the sea water by the action of the pressure difference; The first metal sphere 131 moves downward to close the water outlet of the negative pressure water extraction pipe 6 to prevent the seawater that has been extracted from flowing back into the soil due to the pressure change.
[0024] Specifically, the side length of the limiting frame 12 is slightly larger than the diameter of the first metal sphere 131, which can limit the rising position of the first metal sphere 131; The diameter of the first metal sphere 131 is slightly larger than the diameter of the negative pressure water extraction pipe 6, and the diameter of the second metal sphere 132 is slightly smaller than the diameter of the drain pipe 10; during the water extraction process, the second metal sphere is at position a to block the seawater from pouring in; when the device is in the drainage process, the second metal sphere is at position b to open the water outlet to discharge the water flow; The water outlet position of the negative pressure water extraction pipe 6 is much higher than the base 5, and the lower end is set as a conical structure for easy fixation. Moreover, the side wall of the negative pressure water extraction pipe 6 is provided with water absorption holes 61, and a filter screen is attached to the water absorption holes 61, and the mesh diameter of the filter screen is smaller than the diameter of the sediment.
[0025] Specifically, it further includes a scouring and repair module. The scouring and repair module includes a vertical plate 4. The vertical plate 4 is vertically connected to the outside of the external hollow barrel 2, and the upper end of the vertical plate 4 is fixedly connected to the lower end of the partition and spoiler plate 3. The installation position of the lower end of the vertical plate 4 is higher than the surface of the seabed soil. The vertical plate 4 rotates with the rotation of the external hollow barrel 2, and after the vertical plate 4 rotates, it can drive the soil above the bottom plane of the base 5 into the scouring pit, thereby filling and repairing the scouring pit.
[0026] The specific working process is as follows: The partition and spoiler plate converts the impact kinetic energy of the water flow into the rotational kinetic energy of the external hollow barrel. The T-shaped connecting rod rotates with the external hollow barrel, so that the gear device starts to drive the vertical connecting rod to do repeated vertical movements. The horizontal plate moves with the vertical connecting rod. When the horizontal plate moves upward, the air pressure in the internal hollow barrel decreases, and the first metal sphere moves upward. The water in the underground soil flows into the internal hollow barrel through the negative pressure water extraction pipe, and at the same time, the second metal sphere is at position a; when the horizontal plate moves downward, the air pressure in the internal hollow barrel increases, the first metal sphere moves downward, the metal ball 2 is at position b, and the seawater in the internal hollow barrel is discharged through the drain pipe.
[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0028] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.
Claims
1. An offshore wind power monopile foundation scour protection and repair device, comprising a monopile foundation (1), characterized in that: Energy conversion modules are arranged at equal intervals on the seabed around the periphery of the single-pile foundation (1). The lower surface of the energy conversion module is communicated with the pumping and drainage module, and the pumping and drainage module extends into the seabed soil layer; An air compression module is slidably installed inside the energy conversion module, and the air compression module is communicated with the pumping and drainage module.
2. The scour protection and repair device for an offshore wind power monopile foundation according to claim 1, wherein: The energy conversion module includes an external hollow barrel (2), a partition spoiler (3) and a base (5). The base (5) is fixedly arranged around the soil body of the single-pile foundation (1). The external hollow barrel (2) is rotationally connected to the base (5) through a rotating bearing (51). The partition spoiler (3) is vertically installed at equal intervals on the outer peripheral surface of the external hollow barrel (2).
3. The scour protection and repair device for a single pile foundation of an offshore wind turbine according to claim 2, characterized in that: A diversion groove (31) is formed in the partition spoiler (3), and the opening direction of the diversion groove (31) is parallel to the axis of the external hollow barrel (2).
4. The scour protection and repair device for an offshore wind power monopile foundation according to claim 2, characterized in that: The air compression module includes a connecting rod member (7), a transmission gear (8), an internal hollow barrel (9), and a horizontal plate (11); The connecting rod member (7) includes a T-shaped connecting rod (71), a vertical connecting rod (72) and an L-shaped connecting rod (73). The transmission gear (8) includes a horizontally arranged transmission gear (81) and a vertically arranged transmission gear (82); Opposite ends of the T-shaped connecting rod (71) are fixedly connected to the inner wall of the external hollow barrel (2), and the horizontally arranged transmission gear (81) is horizontally connected to the free end of the T-shaped connecting rod (71); One end of the L-shaped connecting rod (73) is connected to the outer side wall of the internal hollow barrel (9), and the other end of the L-shaped connecting rod (73) is rotationally connected to the vertically arranged transmission gear (82) through a bearing (731); The upper end of the vertical connecting rod (72) is movably connected to the edge of the tooth surface of the vertically arranged transmission gear (82) through a connecting block (821), and the lower end of the vertical connecting rod (72) is hinged to the horizontal plate (11).
5. The scour protection and repair device for a single pile foundation of an offshore wind turbine according to claim 4, characterized in that: The outer diameter of the horizontal plate (11) is smaller than the inner diameter of the internal hollow barrel (9); The horizontally arranged transmission gear (81) is in vertical contact with the vertically arranged transmission gear (82), and the horizontally arranged transmission gear (81) meshes with the vertically arranged transmission gear (82); The connecting block (821) is rotationally connected to the vertical connecting rod (72) through a rotating shaft, and the connecting block (821) is fixedly connected to the edge of the tooth surface of the vertically arranged transmission gear (82).
6. The scour protection and repair device for an offshore wind power monopile foundation according to claim 4, characterized in that: The pumping and drainage module includes a negative pressure water suction pipe (6), a drain pipe (10), a limiting frame (12) and a metal sphere (13). The internal hollow barrel (9) is communicated with the water outlet of the negative pressure water suction pipe (6), and the negative pressure water suction pipe (6) penetrates into the seabed soil; The limiting frame (12) is slidably connected to the upper and lower ends of the water outlet end of the negative pressure water suction pipe (6); The water inlet of the drain pipe (10) is communicated with the bottom plate of the internal hollow barrel (9), and the water outlet of the drain pipe (10) is communicated with the external hollow barrel (2); The metal sphere (13) includes a first metal sphere (131) and a second metal sphere (132). The first metal sphere (131) is placed at the water outlet of the negative pressure water suction pipe (6), and the second metal sphere (132) is placed at the water outlet of the drain pipe (10).
7. The scour protection and repair device for a monopile foundation of an offshore wind turbine according to claim 6, characterized in that: The side length of the limit frame (12) is slightly larger than the diameter of the first metal sphere (131), which can limit the rising position of the first metal sphere (131); The diameter of the first metal sphere (131) is slightly larger than the diameter of the negative pressure water suction pipe (6), and the diameter of the second metal sphere (132) is slightly smaller than the diameter of the drain pipe (10); The water outlet position of the negative pressure water suction pipe (6) is much higher than the base (5). A water suction hole (61) is formed on the side wall of the negative pressure water suction pipe (6), and a filter screen is attached to the water suction hole (61). The mesh diameter of the filter screen is smaller than the diameter of the sediment.
8. The scour protection and repair device for a monopile foundation of an offshore wind turbine according to claim 2, characterized in that: It further includes a scouring and repair module. The scouring and repair module includes a vertical plate (4). The vertical plate (4) is vertically connected to the outside of the external hollow barrel (2), and the upper end of the vertical plate (4) is fixedly connected to the lower end of the partition flow disturbing plate (3). The installation position of the lower end of the vertical plate (4) is higher than the surface of the seabed soil mass.