Deep sea floating fan based on dynamic gravity center adjustment

Abstract

The invention relates to the field of floating fans, and discloses a deep sea floating fan based on dynamic gravity center adjustment, which comprises a central upright post, a wind generating set is arranged above the central upright post, a floating frame is arranged on the outer side of the central upright post, and the floating frame comprises a side upright post; the side stand columns are fixed to the central stand column through connecting rods, and gravity center adjusting mechanisms are arranged on the outer walls of the connecting rods. The gravity center adjusting mechanism comprises a sliding block, a balancing weight is arranged on the inner wall of the sliding block, a sliding groove is formed in the inner wall of the connecting rod, the sliding block slides on the inner wall of the sliding groove, and a steel cable is installed on the lower surface of the sliding block. According to the device, the gravity center adjusting mechanism is arranged, so that the gravity center position of the whole device can be adjusted according to the coming direction of wind waves, for example, when the wind waves come from left to right, the center adjusting structure located on the right side of the device can be adjusted, and a sliding block and a balancing weight in the gravity center adjusting mechanism move leftwards.

Description

Technical Field

[0001] The present invention relates to the field of floating wind turbines, and in particular to a deep-sea floating wind turbine based on dynamic center of gravity adjustment. Background Art

[0002] A floating wind turbine is a wind power generation device suitable for deep-sea environments. Unlike traditional onshore or offshore wind turbines fixed to the seabed, it floats on the sea surface through a floating platform and mooring system, using wind energy to generate electricity. Its core feature is that it can adapt to deep waters, solving the problems of high installation cost and technical difficulty of fixed wind turbines in deep seas. It is a key technology for the development of deep-sea wind energy resources.

[0003] However, the wind, waves, and ocean current loads in deep-sea environments are highly random. Traditional floating wind turbines have the following drawbacks due to the fixed center of gravity of the platform: 1. When wind and waves come from a specific direction, the platform with a fixed center of gravity is prone to excessive tilt due to inertia, increasing the risk of the entire wind turbine capsizing; 2. The mooring system can only passively constrain platform displacement and cannot actively adjust the center of gravity to offset heave motion; 3. It is difficult for the platform to respond to changes in wind and wave direction in real time, and stability adjustment relies on the mechanical limit of the mooring rope, which has limited effect. Summary of the Invention

[0004] In order to make up for the above shortcomings, the present invention provides a deep-sea floating wind turbine based on dynamic center of gravity adjustment, which aims to improve the problem in the prior art that "the center of gravity of the existing floating wind turbine is fixed and it is easy to capsize in the deep-sea environment."

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A deep-sea floating wind turbine based on dynamic center of gravity adjustment includes a central column, a wind turbine generator set is installed above the central column, a floating frame is provided on the outer side of the central column, and the floating frame includes side columns, the side columns are fixed to the central column by connecting rods, and the outer wall of the connecting rod is provided with a center of gravity adjustment mechanism; The center of gravity adjustment mechanism includes a slider and a counterweight block. The inner wall of the connecting rod is provided with a slide groove. The slider slides on the inner wall of the slide groove. The counterweight block is provided inside the slider. The inner wall of the side column is provided with a driving assembly, and the driving assembly drives the slider to move along the slide groove to adjust the overall center of gravity position.

[0006] As a further description of the above technical solution: The counterweight block slides on the inner wall of the sliding block, the outer wall of the counterweight block is fixedly connected to the limit block, and the outer wall of the sliding block is provided with a vertical groove for guiding the limit block.

[0007] As a further description of the above technical solution: The inner wall of the slide is provided with a swing groove, the cross section of the swing groove is set to be triangular and the tip is facing the side column, and the limit block slides on the inner wall of the swing groove.

[0008] As a further description of the above technical solution: The drive assembly includes: Wire trough 1, the wire trough 1 is composed of two sections of continuous through grooves connected to each other, one section of the wire trough 1 is set on the inner wall of the connecting rod, one end opening is set on the inner wall of the slide groove, and the other end opening is set on the right surface of the connecting rod, and the other end of the wire trough 1 is set through the inner wall of the side column.

[0009] Wire trough 2 is also composed of two sections of continuous through grooves that are interconnected. One group of wire troughs 2 passes through the right surface of the connecting rod, and the other group of wire troughs 2 passes through the outer wall of the side column.

[0010] As a further description of the above technical solution: The inner wall of the side column is connected to the wire wheel one and the wire wheel two in sequence from top to bottom. The inner wall of the side column is installed with a driving motor. The output shaft of the driving motor is fixedly connected to the wire wheel one. The end of the slider close to the side column is connected to the wire wheel two through a rope, and the end of the slider away from the side column is connected to the wire wheel one through a rope.

[0011] As a further description of the above technical solution: The first and second wire wheels are both provided with tooth blocks at one end close to each other, and the inner wall of the side column is installed with a fixing ring, and the inner wall of the fixing ring is rotatably connected to a transmission wheel, and the transmission wheel is engaged with the two groups of tooth blocks at the same time.

[0012] As a further description of the above technical solution: A steel cable is installed on the lower surface of the slider, and the other end of the steel cable is installed on the lower surface of the side column. An anchor block is provided on the steel cable, and the anchor block is placed on the seabed.

[0013] As a further description of the above technical solution: An anchor seat is installed on the anchor block, the inner wall of the anchor seat is rotatably connected to a limiting sleeve, and the inner wall of the limiting sleeve is rotatably connected to a rotating shaft.

[0014] As a further description of the above technical solution: The limiting sleeve is configured as a hollow circular ring with an upper opening, and the steel cable passes through the interior of the limiting sleeve.

[0015] The present invention has the following beneficial effects: 1. In the present invention, by providing a center of gravity adjustment mechanism, the center of gravity position of the entire device can be adjusted according to the direction of the wind and waves. For example, when the wind and waves attack from left to right, the central adjustment structure on the right side of the device can be adjusted to move the slider and counterweight block inside the center of gravity adjustment mechanism to the left. In this way, the center of gravity of the device can be moved in the direction of the wind and waves. Then, the entire device will be able to maintain better stability when facing wind and waves, and the probability of the device capsizing can be reduced. 2. In the present invention, by adopting a split design, when the entire device encounters a long-period surge, the entire device will swing up and down significantly. At this time, multiple sets of sliders and counterweights can be adjusted to move closer to the center of gravity of the device at the same time, so that the weight of the entire device can be more concentrated. At the same time, after the counterweight moves to the end with the larger upper and lower span of the swing groove, it can slide relative to the slider. In this way, when the entire device moves up and down, the counterweight can swing up and down, using inertia to alleviate the swing trend of the entire device, reduce the amplitude of the device's up and down swing, and reduce the damage to the device caused by long-period surges; 3. In the present invention, by setting one end of the steel cable on the lower surface of the slider, when the slider moves to the middle position, the steel cable below it will be pulled and moved, which will cause the length of the steel cable between the lower surface of the corresponding side column and the anchor block to become shorter. In this way, the up and down moving distance of the corresponding side column will be limited. In this way, the up and down swing amplitude of the entire device can be rigidly limited, which can further reduce the damage to the device caused by long-period surges. At the same time, it can also limit the horizontal shaking of the device to ensure the stability of the device fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the floating frame in the present invention; Figure 3 Schematic diagram of the three-dimensional cross-section of the floating frame of the present invention; Figure 4 Schematic diagram of the three-dimensional structure cross-section of the center of gravity adjustment mechanism of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the drive assembly in the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the anchor block in the present invention; Figure 7 It is a schematic cross-sectional view of the three-dimensional structure of the connecting rod and the side columns in the present invention.

[0017] Legend: 1. Central column; 2. Floating frame; 21. Connecting rod; 22. Side column; 3. Wind turbine; 4. Center of gravity adjustment mechanism; 41. Slider; 42. Counterweight; 43. Slide; 44. Swinging slot; 45. Limit block; 46. Vertical slot; 47. Drive assembly; 471. Wire trough 1; 472. Wire trough 2; 473. Pulley 1; 474. Tooth block; 475. Transmission wheel; 476. Fixed ring; 477. Pulley 2; 478. Drive motor; 5. Steel cable; 6. Anchor block; 61. Anchor seat; 62. Limit sleeve; 63. Rotating shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Reference Figure 1-Figure 3 , the present invention provides an embodiment: a deep-sea floating wind turbine based on dynamic center of gravity adjustment, including a central column 1 for supporting a wind turbine generator set 3, a wind turbine generator set 3 is installed above the central column 1, and the wind turbine generator set 3 is composed of components such as fan blades, columns, and generators. When blown by wind, the fan blades will be driven to rotate by the wind, so that power generation can be achieved through the generator. Since this application does not make innovations for this part of the content, only its basic functions are briefly described here. A floating frame 2 for supporting the central column 1 is provided on the outside of the central column 1. The floating frame 2 includes side columns 22. The side columns 22 are fixed to the central column 1 by connecting rods 21. Multiple groups of floating frames 2 will be connected to the outside of the same group of central columns 1. In this way, the stability of the support of the central column 1 can be guaranteed. The outer wall of the connecting rod 21 is provided with a center of gravity adjustment mechanism 4 for stabilizing the device; The center of gravity adjustment mechanism 4 includes a slider 41, the inner wall of the slider 41 is provided with a counterweight 42, the inner wall of the connecting rod 21 is provided with a slide groove 43 for accommodating the slider 41, the slider 41 slides on the inner wall of the slide groove 43, the slider 41 can slide on the inner wall of the slide groove 43 and cannot be separated from the slide groove 43, the lower surface of the slider 41 is provided with a steel cable 5 for limiting the movement of the side column 22, the other end of the steel cable 5 is installed on the lower surface of the side column 22, and a triangular structure can be formed between the slider 41, the side column 22 and the steel cable 5, so as to increase the limiting effect of the steel cable 5 on the device, and the steel cable 5 is provided with an anchor block 6 for limiting the movement of the steel cable 5, and the anchor block 6 is placed on the seabed. The inner wall of the side column 22 is provided with a driving component 47 for driving the slider 41 to move.

[0020] Reference Figure 2-Figure 4The counterweight block 42 slides on the inner wall of the slider 41, and the counterweight block 42 can slide up and down on the inner wall of the slider 41. The outer wall of the counterweight block 42 is fixedly connected with a limit block 45 for limiting the movement of the counterweight block 42. The outer wall of the slider 41 is provided with a vertical slot 46 for guiding the limit block 45. The limit block 45 can only slide up and down on the inner wall of the vertical slot 46 and cannot separate from the vertical slot 46. The inner wall of the slide 43 is provided with a swinging slot 44 for further limiting the moving range of the limit block 45. The cross-section of the swinging slot 44 is set to be triangular and the tip of the triangle faces the side column 22. The limit block 45 slides on the inner wall of the swinging slot 44. When the limit block 45 is in the tip position of the swinging slot 44, the limit block 45 will be restricted and cannot move up and down, and when the limit block 45 is in the plane end position of the swinging slot 44, it can move up and down.

[0021] Reference Figure 3 、 Figure 4 and Figure 7 The driving assembly 47 includes a wire groove 471 for accommodating the rope. The wire groove 471 consists of two sections of continuous through grooves that are interconnected. One section of the wire groove 471 is set on the inner wall of the connecting rod 21, one end of which is opened on the inner wall of the slide 43, and the other end is opened on the right surface of the connecting rod 21. The other end of the wire groove 471 passes through the inner wall of the side column 22. There are two groups of wire grooves 471, and the two groups of wire grooves 471 are symmetrical with the center line of the connecting rod 21. The wire groove 1 471 is symmetrically arranged, and the opening positions at the front and rear ends are staggered up and down. The driving component 47 also includes a wire groove 2 472. The wire groove 2 472 is also composed of two sections of continuous through grooves that are interconnected. One group of wire grooves 2 472 passes through the right surface of the connecting rod 21, and the other group of wire grooves 2 472 passes through the outer wall of the side column 22. The wire groove 2 472 is arranged horizontally as a whole, and the openings at the left and right ends are at the same height. This arrangement can prevent the wire groove 1 471 and the wire groove 2 472 from crossing each other.

[0022] Reference Figure 3-Figure 5The inner wall of the side column 22 is connected to the wire wheel 1 473 and the wire wheel 2 477 by rotating from top to bottom in sequence. The output shaft of the drive motor 478 is fixedly connected to the wire wheel 1 473. The drive motor 478 is a servo motor. The rotation direction of its output shaft can be controlled. Due to the existing technology and the fact that people in this field can implement it, this case will not be described in detail. The end of the slider 41 close to the side column 22 is connected to the wire wheel 2 477 through a rope. When the wire wheel 2 477 rotates, it drives the rope to be wound on its outer wall, so that the slider 41 can be pulled toward the side column 22. The end of the slider 41 away from the side column 22 is connected to the wire wheel 1 473 through a rope. When the wire wheel 2 477 rotates, it drives the rope to be wound on its outer wall, so that the slider 41 can be pulled toward the side column 22. When wheel 1 473 rotates, it will drive another set of ropes to pull the slider 41 and drive it to move to a position away from the side column 22. The line wheel 1 473 and the line wheel 2 477 are both provided with a tooth block 474 at one end close to each other. When the line wheel 1 473 and the line wheel 2 477 rotate, the tooth block 474 will also be driven to rotate synchronously. The inner wall of the side column 22 is installed with a fixing ring 476 for supporting the transmission wheel 475. The inner wall of the fixing ring 476 is rotatably connected to the transmission wheel 475. The transmission wheel 475 engages with the two sets of tooth blocks 474 at the same time. When one set of tooth blocks 474 rotates, it will drive the transmission wheel 475 to rotate, and the transmission wheel 475 will drive the other set of tooth blocks 474 to rotate.

[0023] Reference Figure 2 、 Figure 3 and Figure 6 The anchor block 6 is provided with an anchor seat 61, and the inner wall of the anchor seat 61 is rotatably connected to a limit sleeve 62 for limiting the movement of the steel cable 5. The inner wall of the limit sleeve 62 is rotatably connected to a rotating shaft 63 for supporting the sliding of the steel cable 5. The limit sleeve 62 is set as a hollow ring with an upper opening, and the steel cable 5 passes through the inside of the limit sleeve 62. Such a setting can prevent the steel cable 5 from escaping from the inside of the limit sleeve 62 when the steel cable 5 is in a relaxed state as a whole.

[0024] Working principle: When the entire device encounters wind and waves, for example, the wind and waves hit the device from the left side, the drive motor 478 on the right side of the device can be started at this time, so that the corresponding reel 1 473 can be driven to rotate. Since the reel 1 473 and the reel 2 477 are engaged and linked through the transmission wheel 475 and the tooth block 474, the reel 2 477 will rotate synchronously in the opposite direction. The rotation of the reel 2 477 can pull the rope to drive the slider 41 to move closer to the central column 1, so that the slider 41 and the counterweight block 42 can be driven close to the central column 1. In this way, the center of gravity of the device will approach the direction of the wind and waves, and the device will be able to maintain better stability in the face of wind and waves.

[0025] When the device encounters a long-period surge, multiple groups of sliders 41 can be adjusted simultaneously to move synchronously closer to the position of the central column 1. When the slider 41 moves to the predetermined position, the limit block 45 can enter the wide end of the swing groove 44. At this time, the counterweight block 42 can swing up and down in the slider 41. After the counterweight block 42 moves to the wide end of the swing groove 44 with the slider 41, it can slide up and down in the vertical groove 46. When the fan swings up and down, the counterweight block 42 will produce a reverse swing trend due to inertia, offsetting part of the vertical swing energy, reducing the swing amplitude, and further stabilizing the center of gravity.

[0026] At the same time, when the slider 41 moves, the length distribution of the steel cable 5 will change in real time to limit the range of movement of the side column 22. For example, when the slider 41 approaches the central column 1, it will pull the steel cable 5, so that the length of the steel cable 5 below the slider 41 will increase. Correspondingly, the length of the steel cable 5 between the side column 22 and the anchor block 6 will decrease. This can limit the range of up and down movement of the side column 22, thereby limiting the movement range of the entire device.

Claims

1. A deep-sea floating wind turbine based on dynamic center of gravity adjustment, comprising a central column (1), a wind turbine generator set (3) installed above the central column (1), and a floating frame (2) provided outside the central column (1), characterized in that: The floating frame (2) includes side columns (22), the side columns (22) are fixed to the central column (1) via connecting rods (21), and the outer wall of the connecting rod (21) is provided with a center of gravity adjustment mechanism (4); The center of gravity adjustment mechanism (4) includes a slider (41) and a counterweight (42); the inner wall of the connecting rod (21) is provided with a slide groove (43); the slider (41) slides on the inner wall of the slide groove (43); and the counterweight (42) is provided inside the slider (41); A driving assembly (47) is provided on the inner wall of the side column (22), and the driving assembly (47) drives the slider (41) to move along the slide groove (43) to adjust the overall center of gravity position.

2. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 1, characterized in that: The counterweight block (42) slides on the inner wall of the slider (41), the outer wall of the counterweight block (42) is fixedly connected to the limit block (45), and the outer wall of the slider (41) is provided with a vertical groove (46) for guiding the limit block (45).

3. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 2, characterized in that: The inner wall of the slide groove (43) is provided with a swing groove (44), the cross section of the swing groove (44) is set to be triangular and the tip is facing the side column (22), and the limit block (45) slides on the inner wall of the swing groove (44).

4. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 1, characterized in that: The drive assembly (47) comprises: A wire groove (471), the wire groove (471) is composed of two sections of continuous through grooves that are interconnected, wherein one section of the wire groove (471) is arranged on the inner wall of the connecting rod (21), one end of which is opened on the inner wall of the slide groove (43), and the other end of which is opened on the right surface of the connecting rod (21), and the other end of the wire groove (471) is penetrated and arranged on the inner wall of the side column (22); The second wire groove (472) is also composed of two sections of continuous through grooves that are interconnected, one group of the second wire grooves (472) passes through the right surface of the connecting rod (21), and the other group of the second wire grooves (472) passes through the outer wall of the side column (22).

5. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 4, characterized in that: The inner wall of the side column (22) is connected to the first wire wheel (473) and the second wire wheel (477) in a rotational manner from top to bottom. The inner wall of the side column (22) is installed with a driving motor (478). The output shaft of the driving motor (478) is fixedly connected to the first wire wheel (473). The end of the slider (41) close to the side column (22) is connected to the second wire wheel (477) through a rope. The end of the slider (41) away from the side column (22) is connected to the first wire wheel (473) through a rope.

6. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 5, characterized in that: The first line wheel (473) and the second line wheel (477) are both provided with tooth blocks (474) at one end close to each other, and a fixing ring (476) is installed on the inner wall of the side column (22). The inner wall of the fixing ring (476) is rotatably connected to a transmission wheel (475), and the transmission wheel (475) is simultaneously engaged with the two groups of tooth blocks (474).

7. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 1, characterized in that: A steel cable (5) is installed on the lower surface of the slider (41), and the other end of the steel cable (5) is installed on the lower surface of the side column (22). An anchor block (6) is provided on the steel cable (5), and the anchor block (6) is placed on the seabed.

8. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 7, characterized in that: An anchor seat (61) is installed on the anchor block (6), the inner wall of the anchor seat (61) is rotatably connected to a limiting sleeve (62), and the inner wall of the limiting sleeve (62) is rotatably connected to a rotating shaft (63).

9. The deep-sea floating wind turbine based on dynamic center of gravity adjustment according to claim 8, characterized in that: The limiting sleeve (62) is configured as a hollow circular ring with an upper opening, and the steel cable (5) passes through the interior of the limiting sleeve (62).

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