Bottom stabilizing device for wind turbine generator of wind power plant

Abstract

The invention discloses a wind power plant wind turbine generator bottom stabilizing device, and relates to the technical field of wind power equipment, which comprises an inner sleeve, an outer sleeve and a plurality of guide assemblies, wherein the inner sleeve is a through vertical cylinder, and the outer sleeve is rotationally arranged on the inner sleeve in a sleeving mode; the outer sleeve is a through vertical cylinder, limiting baffles can be arranged at the upper end and the lower end of the inner sleeve, and the inner sleeve is sleeved with the outer sleeve under the action of the limiting baffles; a plurality of guide assemblies are uniformly arranged on the outer side wall of the outer sleeve in the circumferential direction, and each guide assembly comprises a mounting frame and an opening and closing piece; the mounting frame is a square frame; the opening and closing sheet is hinged to one side of the mounting frame; the outer sleeve is hollow, and an outer opening is formed in the outer wall of the outer sleeve. A plurality of supporting blocks are arranged in the outer sleeve and used for supporting the inner layer and the outer layer of the outer sleeve. The bottom surface of the jacket is open; the technical effects that flexible adjustment can be conducted according to the change of the water flow direction and strength, and then the impact force of water flow and gravel is effectively dispersed and relieved are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power equipment, in particular to a wind turbine bottom stabilizing device for wind farm. BACKGROUND

[0002] Under the background of the global energy structure accelerating towards low-carbon and clean transformation, marine energy has become a key part of the energy strategy of various countries due to its abundant reserves, wide distribution, and green environmental protection. Among them, offshore wind farms, as an important form of marine energy development and utilization, have shown a vigorous development trend in the world in recent years due to their proximity to load centers, easy access to power grids, and relatively mature technology. With the continuous progress of technology and the gradual reduction of cost, the installed capacity of offshore wind farms continues to expand, playing an important role in meeting the growing energy demand and promoting sustainable energy development.

[0003] As the core equipment of offshore wind farms, the stable operation of wind turbines directly determines the power generation efficiency, economic benefit, and service life of the entire wind farm. However, the offshore environment is extremely complex and harsh, and the bottom pile foundation of wind turbines is particularly challenged by various natural factors over a long period of time. On the one hand, the water flow in the offshore area is complex and changeable, not only existing periodic tidal action, but also being impacted by strong water flow caused by extreme weather events such as storm surges and sea waves. These water flows have the characteristics of fast flow rate and strong impact, which will cause continuous wear and erosion to the surface of the pile foundation. With the passage of time, the structural integrity of the pile foundation will be seriously threatened. On the other hand, the offshore area is rich in a large amount of sand and other particulate matter, which, driven by water flow, hits the pile foundation at high speed, further exacerbating the wear and damage of the pile foundation. In addition, the high salinity and high humidity conditions in the marine environment also accelerate the corrosion process of the pile foundation, leading to a continuous decline in the strength and stability of the pile foundation.

[0004] In the prior art, although a series of measures have been taken for the protection of the bottom pile foundation of a wind turbine, there are limitations in varying degrees. Some schemes simply increase the diameter of the pile foundation to improve its impact resistance, but this approach not only significantly increases the construction cost, including material cost, construction difficulty, and transportation cost, but also has a greater impact on the marine ecological environment, such as occupying more seabed space, interfering with the habitat and reproduction of marine life, etc. Some other schemes use a method of coating a corrosion-resistant coating on the surface of the pile foundation to isolate the direct contact between seawater and the pile foundation, and slow down the corrosion rate. However, in the actual marine environment, the corrosion-resistant coating is easily affected by factors such as water flow scouring, sandstone impact, and ultraviolet radiation, resulting in peeling and failure of the coating, which cannot provide long-term effective protection. Some other schemes set up simple protective structures, such as fixed baffles or cofferdams, to try to block the impact of water flow and sandstone. However, these fixed protective structures lack adaptability to complex and variable water flow environments and cannot be flexibly adjusted according to changes in water flow direction and intensity, often failing to effectively disperse and reduce the impact force of water flow and sandstone in actual application, and the protection effect is not ideal. Therefore, developing a wind turbine bottom stabilizing device that can effectively adapt to the complex nearshore environment and has high protection capability has become a key technical problem to be solved in the current nearshore wind power field. SUMMARY

[0005] The present application provides a wind turbine bottom stabilizing device for a wind farm, which solves the technical problems of the prior art that cannot be flexibly adjusted according to changes in water flow direction and intensity, and cannot effectively disperse and reduce the impact force of water flow and sandstone, and achieves the technical effect of being able to flexibly adjust according to changes in water flow direction and intensity, and effectively dispersing and reducing the impact force of water flow and sandstone.

[0006] The present application provides a wind turbine bottom stabilizing device for a wind farm, which solves the technical problems of the prior art that cannot be flexibly adjusted according to changes in water flow direction and intensity, and cannot effectively disperse and reduce the impact force of water flow and sandstone, and achieves the technical effect of being able to flexibly adjust according to changes in water flow direction and intensity, and effectively dispersing and reducing the impact force of water flow and sandstone.

[0007] Preferably, the opening of the mounting frame is provided with a screen.

[0008] Preferably, the inclination angle of the mounting frame relative to the axis of the cover is not greater than 45 degrees.

[0009] Preferably, the opening and closing piece is an integral whole, and the hinge shaft of the mounting frame and the opening and closing piece is located on the side of the mounting frame away from the cover.

[0010] Preferably, the opening and closing piece is divided into a side opening and closing leaf and a lower opening and closing leaf, and the side opening and closing leaf is located above the lower opening and closing leaf; the side opening and closing leaf and the lower opening and closing leaf are respectively hinged on the mounting frame, and the hinge shaft of the side opening and closing leaf and the mounting frame is located on the side of the mounting frame away from the cover, and the hinge shaft of the lower opening and closing leaf and the mounting frame is located at the bottom of the mounting frame; a layer of artificial seaweed can be laid on the side of the lower opening and closing leaf away from the mounting frame.

[0011] Preferably, the end of the lower opening and closing leaf close to the mounting frame is provided with a limiting rope, and the end of the limiting rope away from the lower opening and closing leaf is connected to the mounting frame, and the limiting rope is used to limit the opening and closing of the lower opening and closing leaf; wherein the limiting rope is a stainless steel rope.

[0012] Preferably, the end of the limiting rope away from the lower opening and closing leaf is located below the side opening and closing leaf, and the length of the limiting rope is less than the height of the lower opening and closing leaf, and when the limiting rope is in a taut state, the end of the lower opening and closing leaf away from the bottom of the mounting frame is inclined upward.

[0013] Preferably, the end of the limiting rope away from the lower opening and closing leaf is located above the bottom end of the side opening and closing leaf, and when the limiting rope is in a taut state, the lower opening and closing leaf is parallel to the bottom surface of the cover.

[0014] Preferably, the lower opening and closing leaf is hollow inside, and a plurality of openings corresponding to the artificial seaweed are formed on the lower opening and closing leaf, and the artificial seaweed slides through the openings; a sliding plate is slidably arranged inside the lower opening and closing leaf, and the part of the artificial seaweed extending into the lower opening and closing leaf is connected to the sliding plate.

[0015] Preferably, the length of the artificial seaweed is greater than the thickness of the lower opening and closing leaf One or more technical solutions provided in the present application have at least the following technical effects or advantages: The application discloses a wind turbine bottom stabilizing device for a wind farm, wherein an inner sleeve is a through vertical cylinder, is fixed to the bottom of a wind turbine or a pile foundation through bolts, and is provided with limiting baffle plates at the upper and lower ends to form an I-shaped structure; an outer sleeve is rotatably sleeved on the inner sleeve, and the bottoms of the two sleeves abut against the sea bottom surface. Guide assemblies are evenly distributed in the circumferential direction of the outer wall of the outer sleeve, and each guide assembly comprises a square mounting frame and an opening and closing piece hinged to one side of the mounting frame, the size of the opening and closing piece is larger than that of the opening of the mounting frame, the mounting frame can be obliquely arranged and the inclination angle is not greater than 45 degrees, and an intercepting net can be arranged on the opening. The outer sleeve is driven to rotate by water flow impacting the opening and closing piece, so that the water flow is slowed down and the force is unloaded, the water flow is guided and the energy is dissipated, and the impact of the water flow and sandstone on the pile foundation is reduced. The technical problems that the water flow direction and intensity cannot be flexibly adjusted in the prior art, and the impact of the water flow and sandstone cannot be effectively dispersed and slowed down are solved, and the technical effect that the water flow direction and intensity can be flexibly adjusted, and the impact of the water flow and sandstone can be effectively dispersed and slowed down is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole schematic view of the wind turbine bottom stabilizing device for a wind farm. Figure 2 It is a cooperation schematic view of the inner sleeve and the outer sleeve of the wind turbine bottom stabilizing device for a wind farm. Figure 3 It is a schematic view of the inner sleeve of the wind turbine bottom stabilizing device for a wind farm. Figure 4 It is a schematic view of the outer sleeve structure of the wind turbine bottom stabilizing device for a wind farm. Figure 5 It is a schematic view of the guide assembly of one embodiment of the wind turbine bottom stabilizing device for a wind farm. Figure 6 It is a state view of the guide assembly of one embodiment of the wind turbine bottom stabilizing device for a wind farm. Figure 7 It is a schematic view of the guide assembly of another embodiment of the wind turbine bottom stabilizing device for a wind farm. Figure 8 It is a state view of the limiting rope of one embodiment of the wind turbine bottom stabilizing device for a wind farm. Figure 9 It is a state view of the limiting rope of another embodiment of the wind turbine bottom stabilizing device for a wind farm. Figure 10 It is a position schematic view of the intercepting net of the wind turbine bottom stabilizing device for a wind farm. Figure 11 It is a schematic view of the sliding plate of the wind turbine bottom stabilizing device for a wind farm.

[0017] In the diagram: 10, inner sleeve; 20, outer sleeve; 21, outer opening; 22, support block; 30, guide assembly; 31, mounting frame; 32, opening and closing piece; 321, side opening hinge; 322, bottom opening hinge; 323, biomimetic seaweed; 324, limiting rope; 325, sliding plate; 33, interception net. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0019] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Example: Figures 1 to 9 As shown, the bottom stabilization device for wind turbine generators in this application includes an inner sleeve 10, an outer sleeve 20, and multiple guide components 30.

[0022] The inner sleeve 10 is a through vertical cylinder, which is fitted onto the bottom of the wind turbine or the pile foundation.

[0023] The outer sleeve 20 is rotated and fitted onto the inner sleeve 10.

[0024] It should be noted that the outer sleeve 20 is a through vertical cylinder, and the upper and lower ends of the inner sleeve 10 can be provided with limiting baffles, so that the inner sleeve 10 forms an I-shaped structure. The outer sleeve 20 is fitted on the inner sleeve 10, and under the action of the limiting baffles, the outer sleeve 20 will not come off the inner sleeve 10.

[0025] It should be noted that the inner sleeve 10 can be fixedly connected to the bottom of the wind turbine or the pile foundation by means of bolts, and the bottom of the inner sleeve 10 can abut against the seabed surface.

[0026] Multiple guide components 30 are evenly arranged circumferentially on the outer side wall of the outer jacket 20. Each guide component 30 includes a mounting frame 31 and an opening / closing piece 32.

[0027] It should be noted that the number of boot components 30 can be 6, 7, 8, 9, or 10, and the specific number can be selected according to actual needs, which will not be detailed here.

[0028] The mounting frame 31 is a square frame, and the hinge piece 32 is hinged to one side of the mounting frame 31.

[0029] Optionally, the size of the hinge 32 is larger than the size of the opening on the mounting frame 31, so that the hinge 32 will not pass through the opening on the mounting frame 31.

[0030] It should be noted that the mounting frame 31 is a square frame with an opening in the center. This opening can be square, circular, oval, or other shapes, and is not limited here. The size of the hinge piece 32 is larger than the size of the opening in the mounting frame 31. If the opening in the mounting frame 31 is square, then the length or width of the hinge piece 32 is greater than the length or width of the opening in the mounting frame 31, so that the hinge piece 32 will not pass through the opening in the mounting frame 31.

[0031] The mounting frame 31 in this application can be integrally formed with the outer casing 20.

[0032] Optionally, such as Figure 1 and Figure 2 As shown, the mounting frame 31 can be tilted, and the opening and closing piece 32 is located diagonally above the mounting frame 31.

[0033] The tilt angle of the mounting frame 31 relative to the axis of the outer jacket 20 is no greater than 45 degrees.

[0034] Optionally, such as Figure 10 As shown, an intercepting net 33 can be installed on the opening of the mounting frame 31.

[0035] It should be noted that the material of the interception net 33 can be high-density polyethylene (HDPE) or high-density polypropylene (HDPP), which are corrosion-resistant materials commonly used in marine engineering; the mesh count of the interception net 33 can be selected according to actual needs, which will not be elaborated here.

[0036] like Figure 5 and Figure 6 As shown, in one embodiment of this application, the hinge piece 32 is an integral unit, and the hinge axis between the mounting frame 31 and the hinge piece 32 is located on the side of the mounting frame 31 away from the outer casing 20.

[0037] Specifically, in actual use, when there is strong water flow in the near-shore wind farm area, the water flow will impact the outer casing 20 and the guiding component 30. Since the guiding component 30 has a hinged opening and closing plate 32, it can... Figure 6For example, when water flows and impacts the guiding component 30, the opening and closing plate 32 on one side of the guiding component 30 on the outer casing 20 will open upon impact (this part of the opening and closing plate 32 is located opposite the mounting frame 31), and the opening and closing plate 32 on the other side of the guiding component 30 on the outer casing 20 will press against the mounting frame 31 upon impact (this part of the opening and closing plate 32 is located in the front of the mounting frame 31). This allows some water to flow smoothly through the open opening and closing plate 32, while the other part of the water pushes the closed opening and closing plate 32 to move, thereby causing the outer casing 20 to rotate. Under this rotational action, the sand and gravel in the water flow can be slowed down and unloaded, preventing these sand and gravel from directly impacting the outer casing 20 and the pile foundation, thus reducing the impact on the pile foundation; in addition, the guiding component 30 The inclined design allows water to flow upwards along the corresponding opening and closing plate 32 after impacting the closed plate 32, thus guiding and dissipating energy and reducing the flow velocity. On the open side of the opening and closing plate 32, as the outer jacket 20 rotates continuously, some water continuously impacts and opens the plate 32, thereby consuming the energy of this water flow and slowing down the flow velocity. This design can flexibly adjust according to changes in the direction and intensity of the water flow, effectively dispersing and mitigating the impact force of water and gravel. The faster the water flow, the more intense the impact on the guiding component 30, and the faster the rotation speed of the outer jacket 20, resulting in better force relief and impact protection. Regardless of the direction of the water flow, when the water impacts the outer jacket 20, it will cause the outer jacket 20 to rotate and relieve force.

[0038] Optionally, such as Figure 1 , Figure 2 and Figure 4 As shown, the outer jacket 20 is hollow inside, and an outer opening 21 is provided on the outer wall of the outer jacket 20; multiple support blocks 22 are provided inside the outer jacket 20 to support the inner and outer layers of the outer jacket 20; the bottom surface of the outer jacket 20 is open.

[0039] It should be noted that there can be 4, 5, 6, 7, or 8 support blocks 22, etc. The specific number and position distribution can be selected according to actual needs, which will not be detailed here.

[0040] The outer opening 21 can be located on the side close to the opening and closing piece 32.

[0041] It is understandable that by opening the outer opening 21, when the water flow impacts the outer casing 20, a small portion of the water flow carries a small portion of sand and gravel into the interior of the outer casing 20. Since the interior of the outer casing 20 is a ring-shaped channel, it can further absorb and buffer the water flow and sand and gravel that enter it, reducing the impact. At the same time, the energy-absorbing sand and gravel can fall under the outer casing 20, which plays a certain role in sand accumulation and prevents soil loss that could lead to instability of the pile foundation.

[0042] like Figure 7 and Figure 8As shown, in another embodiment of this application, the hinge 32 is divided into a side hinge 321 and a bottom hinge 322, and the side hinge 321 is located above the bottom hinge 322.

[0043] The side hinge 321 and the bottom hinge 322 are respectively hinged to the mounting frame 31, and the hinge axis of the side hinge 321 and the mounting frame 31 is located on the side of the mounting frame 31 away from the outer sleeve 20, while the hinge axis of the bottom hinge 322 and the mounting frame 31 is located at the bottom of the mounting frame 31.

[0044] The height of the bottom hinge 322 can be one-third to one-half the height of the side hinge 321.

[0045] It should be noted that the hinge axis between the bottom hinge 322 and the mounting frame 31 is located below the opening on the mounting frame 31.

[0046] Optionally, a layer of biomimetic seaweed 323 may be laid on the side of the lower hinge 322 away from the mounting frame 31.

[0047] Among them, the material of biomimetic seaweed 323 can be high-density polyethylene (HDPE) or high-density polypropylene (HDPP), which are commonly used materials in marine engineering.

[0048] A limiting rope 324 is provided at one end of the lower hinge 322 near the mounting frame 31. The end of the limiting rope 324 away from the lower hinge 322 is connected to the mounting frame 31. The limiting rope 324 is used to restrict the opening and closing of the lower hinge 322.

[0049] The limiting rope 324 can be a stainless steel metal rope.

[0050] It is understandable that, in this embodiment, by setting the lower hinge 322, when the lower hinge 322 is in the open state, the water flow will flow upward along the lower hinge 322, and by setting the bionic seaweed 323, the bionic seaweed 323 can alleviate the eddy current that appears below the lower hinge 322; when the lower hinge 322 is in the closed state (water flow impact), the water flow will impact the bionic seaweed 323, and the bionic seaweed 323 can further slow down and dissipate energy of this part of the water flow, and the bionic seaweed 323 can intercept some of the sand and gravel in the water flow, preventing too much sand and gravel from being carried away by the water flow.

[0051] Optionally, such as Figure 8 As shown, in one embodiment of this application, the end of the limiting rope 324 away from the lower hinge 322 is located below the side hinge 321, and the length of the limiting rope 324 is less than the height of the lower hinge 322. When the limiting rope 324 is in a taut state, the end of the lower hinge 322 away from the bottom of the mounting frame 31 is tilted upward.

[0052] It should be noted that the specific length of the limiting rope 324 in this embodiment is set according to actual needs, thereby limiting the opening and closing degree of the lower hinge 322.

[0053] The height of the bottom hinge 322 refers to the distance between the top of the bottom hinge 322 and the bottom hinge axis of the bottom hinge 322.

[0054] Optionally, such as Figure 9 As shown, in another embodiment of this application, the end of the limiting rope 324 away from the lower hinge 322 is located above the bottom end of the side hinge 321, and when the limiting rope 324 is taut, the lower hinge 322 is parallel to the bottom surface of the outer cover 20.

[0055] It should be noted that the bottom hinge 322 is parallel to the bottom surface of the outer casing 20. At this time, the biomimetic seaweed 323 on the bottom hinge 322 can sweep away the mud and sand on the seabed.

[0056] Optionally, in this application, the bottom surface of the outer sleeve 20 may be higher than the bottom surface of the inner sleeve 10, that is, there may be a gap between the bottom surface of the outer sleeve 20 and the seabed surface, such as the bottom surface of the outer sleeve 20 being 3 to 8 centimeters higher than the bottom surface of the inner sleeve 10.

[0057] Understandably, when the side hinge 321 and the bottom hinge 322 are opened by water flow or due to inertia, the bottom hinge 322 will be parallel to the bottom surface of the outer casing 20. At this time, the biomimetic seaweed 323 on the bottom hinge 322 can sweep away the mud and sand on the seabed, sweeping the sand and gravel on the back of the outer casing 20 to the front of the outer casing 20 (the side facing the water flow). This mud and sand can better fill the gaps around the pile foundation, increasing the friction and interlocking force between the pile foundation and the seabed. When the water flow impacts the pile foundation, the loose mud and sand can disperse the force of the water flow on the pile foundation, reducing the vibration and displacement of the pile foundation, thereby enhancing the stability of the pile foundation. In addition, the biomimetic seaweed 323 sweeping away the mud and sand can also promote the growth of microorganisms and plants in the mud and sand, further improving the ecological environment around the pile foundation and forming a more stable ecological support system. When the side hinge 321 is gradually closed by the impact of the water flow, the side hinge 321 will squeeze the limiting rope 324, and the limiting rope 324 will then pull the lower hinge 322, causing the end of the lower hinge 322 away from the bottom of the mounting frame 31 to tilt upward. At this time, under the impact of the water flow, the lower hinge 322 is closed by the impact of the water flow.

[0058] It is important to know that horseshoe vortices are the main factor causing local scour of the pile foundation. Their formation is closely related to the water flow structure around the pile foundation. Under the influence of horseshoe vortices, the front of the wind turbine pile foundation (the side facing the water flow) will be eroded by the water flow, and silt will accumulate on the back of the wind turbine pile foundation. In this application, the rotating mounting frame 31 and the lower hinge 322 can flatten the silt around the outer casing 20 to a certain extent. In this application, the structure of the lower hinge 322 being parallel to the bottom surface of the outer casing 20, as well as the presence of the biomimetic seaweed 323, change the local flow of water around the pile foundation. When water flows through the pile foundation, this special structure interferes with the normal flow path of the water, preventing the water from gathering and rotating in the manner of forming a horseshoe vortex, thus weakening the conditions for the formation of a horseshoe vortex. In addition, the outer jacket 20 can regulate the flow velocity of the water during the rotation process, playing an energy dissipation and deceleration role for the water flow in front of the outer jacket 20, and a certain pushing and accelerating role for the water flow in back of the outer jacket 20, thereby reducing the flow velocity difference between the front and back of the outer jacket 20, and the guiding component 30 can weaken the water vortex (such as a horseshoe vortex) during the rotation process.

[0059] Furthermore, such as Figure 11 As shown, the lower hinge 322 is hollow inside, and the lower hinge 322 has multiple openings corresponding to the bionic seaweed 323, through which the bionic seaweed 323 slides.

[0060] The lower hinge 322 has a sliding plate 325 inside, and the part of the bionic seaweed 323 that extends into the lower hinge 322 is connected to the sliding plate 325.

[0061] Understandably, when the lower hinge 322 rotates downwards (open state), the bionic seaweed 323 will contact the seabed surface. When the lower hinge 322 stops, the sliding plate 325 will move away from the mounting frame 31 due to inertia, allowing the bionic seaweed 323 to have sufficient contact with the seabed surface. When the lower hinge 322 rotates upwards (closed state), the lower hinge 322 hits the mounting frame 31 and stops rotating. The sliding plate 325 will move closer to the mounting frame 31 due to inertia, allowing the bionic seaweed 323 to have sufficient contact with the seabed surface. 323 slides along the opening on the lower hinge 322, which can discharge the sand and gravel mixed in with the bionic seaweed 323, and can also sort out the tangled bionic seaweed 323 to a certain extent, thereby improving the service life of the bionic seaweed 323. At the same time, it can better help some of the sand and gravel fall to the front and sides of the outer casing 20 (when the lower hinge 322 is rotated to the front of the outer casing 20, the lower hinge 322 will abut against the mounting frame 31, at which time the bionic seaweed 323 slides, and some of the sand and gravel mixed in with the bionic seaweed 323 will fall off).

[0062] Among them, the length of the biomimetic seaweed 323 is greater than the thickness of the lower hinge 322.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bottom stabilization device for wind turbine generators in a wind farm, characterized in that, Includes an inner sleeve (10), an outer sleeve (20), and multiple guide components (30); The inner sleeve (10) is a through vertical cylinder, and the outer sleeve (20) is rotatably fitted on the inner sleeve (10); The outer sleeve (20) is a through vertical cylinder, and the upper and lower ends of the inner sleeve (10) can be provided with limiting baffles so that the inner sleeve (10) forms an I-shaped structure. The outer sleeve (20) is fitted on the inner sleeve (10). Under the action of the limiting baffles, the outer sleeve (20) will not come off the inner sleeve (10). Multiple guide components (30) are evenly arranged circumferentially on the outer side wall of the outer jacket (20). The guide components (30) include a mounting frame (31) and an opening and closing piece (32). The mounting frame (31) is a square frame, and the hinge piece (32) is hinged to one side of the mounting frame (31); The size of the opening piece (32) is larger than the size of the opening on the mounting frame (31), so that the opening piece (32) will not pass through the opening on the mounting frame (31); The mounting frame (31) is inclined, and the opening and closing piece (32) is located diagonally above the mounting frame (31); The outer jacket (20) is hollow inside, and an outer opening (21) is provided on the outer wall of the outer jacket (20); multiple support blocks (22) are provided inside the outer jacket (20) to support the inner and outer layers of the outer jacket (20); the bottom surface of the outer jacket (20) is open.

2. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 1, characterized in that, An intercepting net (33) is provided on the opening of the mounting frame (31).

3. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 1, characterized in that, The angle of inclination of the mounting frame (31) relative to the axis of the outer jacket (20) is no greater than 45 degrees.

4. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 1, characterized in that, The hinge plate (32) is a whole, and the hinge axis between the mounting frame (31) and the hinge plate (32) is located on the side of the mounting frame (31) away from the outer sleeve (20).

5. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 1, characterized in that, The hinge (32) is divided into a side hinge (321) and a bottom hinge (322), and the side hinge (321) is located above the bottom hinge (322); The side hinge (321) and the bottom hinge (322) are respectively hinged to the mounting frame (31), and the hinge axis of the side hinge (321) and the mounting frame (31) is located on the side of the mounting frame (31) away from the outer sleeve (20), and the hinge axis of the bottom hinge (322) and the mounting frame (31) is located at the bottom of the mounting frame (31); A layer of biomimetic seaweed (323) may be laid on the side of the lower hinge (322) away from the mounting frame (31).

6. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 5, characterized in that, The lower hinge (322) is provided with a limiting rope (324) at one end near the mounting frame (31), and the other end of the limiting rope (324) away from the lower hinge (322) is connected to the mounting frame (31). The limiting rope (324) is used to restrict the opening and closing of the lower hinge (322). The limiting rope (324) is a stainless steel metal rope.

7. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 6, characterized in that, The end of the limiting rope (324) away from the lower hinge (322) is located below the side hinge (321), and the length of the limiting rope (324) is less than the height of the lower hinge (322). When the limiting rope (324) is taut, the end of the lower hinge (322) away from the bottom of the mounting frame (31) is tilted upward.

8. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 6, characterized in that, The end of the limiting rope (324) away from the lower hinge (322) is located above the bottom end of the side hinge (321), and when the limiting rope (324) is taut, the lower hinge (322) is parallel to the bottom surface of the outer cover (20).

9. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 5, characterized in that, The lower hinge (322) is hollow inside, and the lower hinge (322) has multiple openings corresponding to the bionic seaweed (323), through which the bionic seaweed (323) slides. The lower hinge (322) is slidably provided with a sliding plate (325), and the part of the bionic seaweed (323) extending into the lower hinge (322) is connected to the sliding plate (325).

10. The bottom stabilization device for wind turbine generators in a wind farm as described in claim 9, characterized in that, The length of the biomimetic seaweed (323) is greater than the thickness of the lower hinge (322).

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