Offshore wind power foundation scour protection device

Abstract

The application discloses a kind of offshore wind power foundation anti-scour device, belong to fan foundation auxiliary structure technical field;Including: generator, the bottom of the generator is fixedly connected with support rod, the surface of the support rod is provided with guide vane, the top and bottom of the guide vane are fixedly connected with curved surface plate, the junction of the curved surface plate and the support rod is fixedly provided with sealing ring, the sealing ring is slidably connected with the support rod, the inner side of the guide vane is provided with rotating mechanism, the surface of the support rod is provided with support mechanism and sliding mechanism, the hollow position of the inner side of the guide vane is provided with float body mechanism, the wave impact surface of the guide vane is provided with wave detection mechanism.Compared with prior art, the device can rotate efficiently, and the seawater can be decomposed conveniently, and the impact resistance is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary structures for wind turbine foundations, and specifically relates to an anti-scouring device for offshore wind power foundations. Background Technology

[0002] With the rapid development of society and economy, the world's demand for energy has increased dramatically. To address the challenges of depleted non-renewable energy resources and increasing environmental degradation, finding new renewable and clean energy sources has become a global consensus. The ocean, covering 70% of the Earth's surface, not only possesses abundant aquatic and oil resources but also holds enormous energy potential. Offshore wind power, a type of ocean energy, is developing rapidly and on a large scale.

[0003] Generally speaking, offshore wind power structures need to ensure the stability of the wind turbine foundation. In existing technologies, the stability of the wind turbine foundation is usually achieved by adjusting its attitude. This method is prone to causing the wind turbine foundation to have a short fatigue life and low structural safety during long-term use, requiring more frequent maintenance and component replacement. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing methods for stabilizing wind turbine foundations easily lead to foundation fatigue. This invention proposes an anti-scouring device for offshore wind turbine foundations.

[0005] To address the aforementioned technical problems, this invention provides an anti-scouring device for offshore wind power foundations, comprising: a generator; a support rod fixedly connected to the bottom of the generator; a guide plate disposed on the surface of the support rod; curved panels fixedly connected to the top and bottom of the guide plate; a sealing ring fixedly disposed at the connection between the curved panels and the support rod; the sealing ring being slidably connected to the support rod; a rotating mechanism disposed on the inner side of the guide plate; a support mechanism and a sliding mechanism disposed on the surface of the support rod; a floating mechanism disposed in the hollow inner part of the guide plate; and a wave detection mechanism disposed on the wave impact surface of the guide plate.

[0006] Preferably, the rotating mechanism includes a rotating groove, which is formed inside the guide plate. A support plate is fixedly connected to the surface of the inner wall of the rotating groove. A vertical rod is fixedly connected to the inner side of the support plate. A first gear is movably connected to the surface of the vertical rod.

[0007] Preferably, the surface of the first gear meshes with a second external gear, the interior of the second external gear is fixedly connected to the support rod, and the inner side of the second external gear is a second internal gear.

[0008] Preferably, the number of the second external gears is not less than two, and the number of first gears meshing with the surface of each second external gear is not less than two.

[0009] Preferably, the support mechanism includes a first support ring, which is fixedly disposed on the surface of the open connecting cylinder. The inner and outer surfaces of the open connecting cylinder are smoothly disposed, and a rotating mechanism is fixedly connected to its upper and lower ends. A positioning frame is fixedly connected to the top of the first support ring, and a ball bearing is rotatably connected inside the positioning frame. A second support ring is movably connected to the top of the ball bearing. The outer side of the second support ring is fixedly connected to the surface of the inner wall of the rotating groove. A rising motor and a falling motor are fixedly fixed on the second support ring. A metal shell is fixedly connected to the outer side of the guide plate, and a polyethylene layer is fixedly connected to the outer side of the metal shell.

[0010] Preferably, the number of balls is several, and the balls are evenly distributed in a ring.

[0011] Preferably, the sliding mechanism includes a fixed ring fixedly connected to the support rod, and a sliding groove is provided on the outer surface of the fixed ring. A rising sliding gear and a falling sliding gear are provided at both ends of the opening of the sliding groove. The rising sliding gear meshes with the rising motor gear, and the falling sliding gear meshes with the falling motor gear.

[0012] Preferably, the wave detection mechanism includes a floating ball support frame, on which a floating ball is fitted. A balance tube is connected to the floating ball on the side near the support rod. A balance tube rotating ring is fixed to the other end of the balance tube. The balance tube rotating ring is fitted onto the balance tube rotating shaft which is fixedly connected to the guide plate. The balance tube has a descending contact end and a rising contact end at both ends. A sensing ball is installed inside the balance tube.

[0013] Preferably, the floating ball support frame is fixedly installed on the surface of the guide plate perpendicular to the sea level, and the floating ball support frame is arc-shaped.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In this design, when seawater impacts the guide plate, the streamlined design of the guide plate facilitates efficient seawater flow. The rotation of the guide plate drives the support plate and vertical rod to rotate, causing the first gear to rotate around the second gear, thus achieving efficient rotation, facilitating the decomposition of seawater, and improving impact resistance.

[0016] 2. This solution supports the guide plate by having the second support ring roll on top of the ball bearing. The first support ring and the positioning frame facilitate the limiting of the ball bearing, improving the stability of the ball bearing rotation and making it easier for users to operate. At the same time, the polyethylene layer improves the smoothness of the guide plate surface, preventing a large amount of marine organisms from adhering to its surface.

[0017] 3. This solution, through the design of relevant structures, ensures that when waves propagate, the floating ball rises, causing the balance tube to rotate upwards. The sensing ball then moves along the balance tube towards the rising contact end. Upon contact, the rising motor is immediately activated, and its gear rotates, driving the meshing rising sliding gear to slide the entire guide plate device upwards until the sensing ball leaves the rising contact end, at which point the rising motor is deactivated. Similarly, when waves recede, the floating ball falls downwards, causing the balance tube to rotate downwards. The sensing ball then moves along the balance tube towards the descending contact end. Upon contact, the descending motor is immediately activated, and its gear rotates, driving the meshing descending sliding gear to slide the entire guide plate device downwards until the sensing ball leaves the descending contact end, at which point the descending motor is deactivated. This ensures the entire guide plate device remains horizontal, allowing for efficient vertical sliding, facilitating seawater decomposition, and improving impact resistance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the guide plate structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the support rod structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the sliding mechanism structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the support mechanism and the rotating mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the support mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the guide plate of the present invention;

[0025] Figure 8 This is a schematic diagram of the wave detection mechanism of the present invention.

[0026] 1. Generator; 2. Support rod; 3. Guide plate; 4. Curved panel; 5. Sealing ring; 6. Rotating mechanism; 61. Rotating groove; 62. Support plate; 63. Vertical rod; 64. First gear; 65. Second external gear; 66. Second internal gear; 7. Support mechanism; 71. First support ring; 72. Positioning frame; 73. Ball bearing; 74. Second support ring; 75. Metal shell; 76. Polyethylene layer; 77. Open connecting cylinder; 8. Sliding mechanism; 81. Slide groove; 82. Rising sliding gear; 83. Descending sliding gear; 84. Fixed ring; 9. Wave detection mechanism; 91. Sensing ball; 92. Balance tube; 93. Floating ball; 94. Floating ball support frame; 95. Balance tube rotating shaft; 96. Balance tube rotating ring; 97. Descending contact end; 98. Rising contact end; 10. Rising motor; 11. Rising motor gear; 12. Descending motor; 13. Descending motor gear; 14. Photovoltaic panel. Detailed Implementation

[0027] Example 1: As Figure 1 - Figure 8 As shown, an anti-scouring device for offshore wind power foundations includes: a generator 1, a support rod 2 fixedly connected to the bottom of the generator 1, a guide plate 3 provided on the surface of the support rod 2, curved panels 4 fixedly connected to the top and bottom of the guide plate 3, sealing rings 5 ​​fixedly installed on the top and bottom of the curved panels 4, and a photovoltaic panel installed on the top of the curved panels 4 to provide power to the lifting motor. The inner side of the sealing rings 5 ​​is slidably connected to the support rod 2. The hollow inner part of the guide plate is configured as a floating mechanism, the buoyancy of which allows the entire guide plate to float on the water surface. A sliding mechanism 8 is provided on the surface of the support rod 2, and the sliding mechanism 8 is fixedly connected to the surface of the support rod 2. The sliding mechanism 8 is used to slide the guide plate 3 up and down. A support mechanism 7 is provided in the middle of the rotating mechanism 6 to support the guide plate 3. A wave detection mechanism 9 is installed on the wave impact surface of the guide plate 3. The wave detection mechanism 9 can efficiently detect waves and adjust the guide plate 3 up and down. The rotation mechanism 6 facilitates the efficient rotation of the guide plate 3. The angle is adjusted by water flow, which reduces the resistance of water flow and thus improves the stability and safety of the wind power equipment.

[0028] like Figures 1 to 6As shown, the rotating mechanism 6 includes a rotating groove 61, which is formed inside the guide plate 3. A support plate 62 is fixedly connected to the inner wall of the rotating groove 61. A vertical rod 63 is fixedly connected to the inner side of the support plate 62. A first gear 64 is movably connected to the surface of the vertical rod 63. The rotating groove 61 facilitates the connection between the guide plate 3 and the support rod 2. At the same time, the support plate 62 facilitates the fixation of the first gear 64, thereby improving the stability of the rotation of the guide plate 3. A second internal gear 66 meshes with the sliding groove 81 of the sliding mechanism. A second external gear 65 meshes with the surface of the first gear 64. The rotation of the two external gears 65 causes the guide plate 3 to rotate around the support rod 2 via the first gear 64, improving the rotation efficiency. The second external gear 65 and the second internal gear 66 are actually the same gear, with gear slots on the inside and outside. The second external gear 65 is used for the rotation of the guide plate 3, and the second internal gear 66 is used for the up and down sliding of the guide plate 3. Each surface of the second external gear 65 is meshed with four first gears 64. Setting the number of second external gears 65 to two makes it easier to make the support stability of the guide plate 3 more stable when it rotates, thereby improving the ability to decompose the impact of seawater and making it easier for users to use.

[0029] In this embodiment of the invention (working principle), when the user impacts the guide plate 3 with seawater, the streamlined design of the guide plate 3 facilitates efficient guidance of the seawater. The rotation of the guide plate 3 drives the support plate 62 and the vertical rod 63 to rotate, thereby causing the first gear 64 to rotate around the second external gear 65, thus achieving efficient rotation. The wave detection mechanism 9 detects the waves, thereby achieving efficient up and down sliding, facilitating the decomposition of seawater and improving the impact resistance.

[0030] like Figures 1 to 8As shown, the support mechanism 7 includes a first support ring 71, which is fixedly installed on an open connecting cylinder 77. The inner and outer surfaces of the open connecting cylinder 77 are smooth and open to facilitate the meshing of the lifting motor gear and the lifting sliding gear. The upper and lower ends are fixedly connected to the rotating mechanism 6. The inner surface of the open connecting cylinder 77 maintains a certain distance from the surface of the sliding groove to avoid affecting the up-and-down sliding of the guide plate 3. A positioning frame 72 is fixedly connected to the top of the first support ring 71, and ball bearings 73 are rolled inside the positioning frame 72. The first support ring 71 allows the weight of the guide plate 3 to be supported, thereby improving the stability and efficiency of the rotation of the guide plate 3. For ease of use, the ball bearings 73 reduce friction when the guide plate 3 rotates, thereby improving rotation efficiency and resistance to seawater impact. A second support ring 74 is movably connected to the top of the ball bearings 73. The outer side of the second support ring 74 is fixedly connected to the surface of the inner wall of the rotating groove 61. By fixing the second support ring 74 to the surface of the rotating groove 61, the second support ring 74 and the guide plate 3 are supported by the first support ring 71 and the ball bearings 73. The lifting motor 10 and the lowering motor 12 are fixed on the second upper and lower support rings 74 respectively. The elevator is a battery-powered elevator, and the power comes from the photovoltaic panel 14 installed on the top of the curved panel 4. The number of ball bearings 73 is several, and the ball bearings 73 are evenly distributed in a ring. Setting the number of ball bearings 73 to several improves the rotational stability of the second support ring 74, thereby improving the rotational stability of the guide plate 3. A metal shell 75 is fixedly connected to the outside of the guide plate 3, and a polyethylene layer 76 is fixedly connected to the outside of the metal shell 75. The setting of the metal shell 75 effectively improves the impact resistance of the guide plate 3, and the setting of the polyethylene layer 76 improves the smoothness of the surface of the guide plate 3.

[0031] In this embodiment of the invention, the second support ring 74 rolls on top of the ball 73 to support the guide plate 3. The arrangement of the first support ring 71 and the positioning frame 72 facilitates the limiting of the ball 73, improves the stability of the ball 73 rotation, and makes it easier for the user to use. At the same time, the polyethylene layer 76 improves the smoothness of the surface of the guide plate 3 and prevents a large number of marine organisms from adhering to its surface.

[0032] like Figures 1 to 8 As shown, the sliding mechanism 8 is provided with a fixed ring 84. The inner surface of the fixed ring 84 is fixedly connected to the support rod 2. The outer surface of the fixed ring 84 is provided with a sliding groove 81. The sliding groove 81 is open, which facilitates the meshing of the lifting motor gear and the lifting sliding gear. At both ends of the opening, there are an upward sliding gear 82 and a downward sliding gear 83. The upward sliding gear 82 meshes with the upward motor gear 11, and the downward sliding gear 83 meshes with the downward motor gear 13.

[0033] like Figures 1 to 8 As shown, the wave detection mechanism 9 is installed on the wave impact surface of the guide plate 3. A balance tube 92 is installed on the wave detection mechanism 9. A circular hole is opened on one side of the balance tube 92 in the guide plate 3, and a balance tube rotation shaft 95 is fixed in the circular hole. The balance tube 92 can rotate around the balance tube rotation shaft 95 via a balance tube rotation ring 96. The other side is fixed to a floating ball 93, which can move up and down with the waves via a floating ball support frame 94. The floating ball support frame 94 is arc-shaped and fixed to the surface of the guide plate 3. The arc shape is due to the circumferential movement of the balance tube 92 around the balance tube rotation ring 96. A sensing ball 91 is installed inside the balance tube 92, which can slide freely within the balance tube 92. A descending contact end 97 and a rising contact end 98 are provided at both ends of the balance tube 92. When the waves propagate, they cause the floating ball 93 to float upwards. The upward floating of the floating ball 93 will drive the balance tube 92 to rotate upwards. At this time, the sensing ball 91 will move along the balance tube 92 towards the rising contact end 98. When it reaches the rising contact end 98 and makes contact with it, the rising motor 10 will be started immediately. The rising motor gear 11 installed on the rising motor 10 will start to rotate, driving the rising sliding gear 82 that meshes with it to slide the entire guide plate device upwards 3 until the sensing ball 91 leaves the rising contact end 98, at which point the rising motor 10 will be cut off. Similarly, when the wave propagates away, it causes the floating ball 93 to float downwards. The upward movement of the floating ball 93 causes the balance tube 92 to rotate downwards. At this time, the sensing ball 91 moves along the balance tube 92 to the descending contact end 97. When it reaches and contacts the descending contact end 97, the descending motor 12 is immediately activated. The descending motor gear 13 mounted on the descending motor 12 begins to rotate, driving the meshing descending sliding gear 83 to slide the entire guide plate device 3 downwards until the sensing ball 91 leaves the descending contact end 97. Then, the descending motor 12 is deactivated. This ensures that the entire guide plate device 3 remains in a horizontal position, allowing for efficient up-and-down sliding, facilitating the decomposition of seawater and improving its impact resistance. The balance tube is designed in an arc shape so that when detecting smaller waves, the sensing ball 91 remains in a balanced position, preventing the activation of the elevator.

Claims

1. A scour protection device for offshore wind turbine foundations, characterized in that, include: A generator (1) is fixedly connected to a support rod (2) at its bottom. A guide plate (3) is provided on the surface of the support rod (2). A curved plate (4) is fixedly connected to the top and bottom of the guide plate (3). A sealing ring (5) is fixedly provided at the connection between the curved plate (4) and the support rod (2). The sealing ring (5) is slidably connected to the support rod (2). A rotating mechanism (6) is provided on the inner side of the guide plate (3). A support mechanism (7) and a sliding mechanism (8) are provided on the surface of the support rod (2). A floating body mechanism is provided in the hollow position on the inner side of the guide plate (3). A wave detection mechanism (9) is provided on the wave impact surface of the guide plate (3). The wave detection mechanism (9) includes a floating ball support frame (94), on which a floating ball (93) is fitted. The floating ball (93) is connected to a balance tube (92) on one side near the support rod (2). A balance tube rotating ring (96) is fixed at the other end of the balance tube (92). The balance tube rotating ring (96) is fitted onto a balance tube rotating shaft (95) fixedly connected to the guide plate (3). The balance tube (92) has a descending contact end (97) and a rising contact end (98) at both ends. A sensing ball (91) is installed inside the balance tube (92). The floating ball (93) floats upward and drives the balance tube (92) to rotate upward. At this time, the sensing ball (91) moves along the balance tube (92) to the rising contact end (98). When it moves to the rising contact end (98) and contacts it, the rising motor (10) will be started immediately. The rising motor gear (11) installed on the rising motor (10) starts to rotate, driving the rising sliding gear (82) that meshes with it to make the entire guide plate device slide upward. The floating ball (93) floats downwards, which will cause the balance tube (92) to rotate downwards. At this time, the sensing ball (91) will move along the balance tube (92) towards the descending contact end (97). When it moves to the descending contact end (97) and contacts it, the descending motor (12) will be started immediately. The descending motor gear (13) installed on the descending motor (12) will start to rotate, which will drive the descending sliding gear (83) meshing with it to make the entire guide plate device slide downwards.

2. The anti-scouring device for offshore wind power foundations according to claim 1, characterized in that, The rotating mechanism (6) includes a rotating groove (61), which is opened inside the guide plate (3). A support plate (62) is fixedly connected to the surface of the inner wall of the rotating groove (61). A vertical rod (63) is fixedly connected to the inner side of the support plate (62). A first gear (64) is movably connected to the surface of the vertical rod (63).

3. The anti-scouring device for offshore wind power foundations according to claim 2, characterized in that, The surface of the first gear (64) is meshed with the second external gear (65), the inner side of the second external gear (65) is fixedly connected to the support rod (2), and the inner side of the second external gear (65) is the second internal gear (66).

4. The anti-scouring device for offshore wind power foundations according to claim 3, characterized in that, The number of the second external gears (65) is not less than two, and the number of first gears (64) meshing on the surface of each second external gear (65) is not less than two.

5. The anti-scouring device for offshore wind power foundations according to claim 2, characterized in that, The support mechanism (7) includes a first support ring (71), which is fixedly disposed on the surface of the open connecting cylinder (77). The inner and outer surfaces of the open connecting cylinder (77) are smoothly disposed and the upper and lower ends are fixedly connected to a rotating mechanism (6). A positioning frame (72) is fixedly connected to the top of the first support ring (71). A ball bearing (73) is rolled inside the positioning frame (72). A second support ring (74) is movably connected to the top of the ball bearing (73). The outer side of the second support ring (74) is fixedly connected to the surface of the inner wall of the rotating groove (61). A rising motor (10) and a falling motor (12) are fixedly fixed on the second support ring (74). A metal shell (75) is fixedly connected to the outer side of the guide plate (3). A polyethylene layer (76) is fixedly connected to the outer side of the metal shell (75).

6. The anti-scouring device for offshore wind power foundations according to claim 5, characterized in that, The number of the balls (73) is several, and the balls (73) are evenly distributed in a ring.

7. The anti-scouring device for offshore wind power foundations according to claim 1, characterized in that, The sliding mechanism (8) includes a fixed ring (84) fixedly connected to the support rod (2). The outer surface of the fixed ring (84) is provided with a sliding groove (81). At both ends of the opening of the sliding groove (81) are provided an upward sliding gear (82) and a downward sliding gear (83). The upward sliding gear (82) meshes with the upward motor gear (11), and the downward sliding gear (83) meshes with the downward motor gear (13).

8. The anti-scouring device for offshore wind power foundations according to claim 1, characterized in that, The floating ball support frame (94) is fixedly installed on the surface of the guide plate (3) perpendicular to the sea level, and the floating ball support frame (94) is arc-shaped.

9. The anti-scouring device for offshore wind power foundations according to claim 1, characterized in that, A photovoltaic panel (14) is provided on the surface of the curved panel (4) at the top of the guide plate (3).

Images