Anti-scour equipment for wind power piles on the sea

Abstract

The present invention relates to the technical field of wind power equipment protection, and specifically to anti-scour resistance equipment for offshore wind power piles, including wind power pile columns, the outer side of the wind power pile columns is fixedly connected to two arc-shaped cover shells by bolts, the outer side walls of the arc-shaped cover shells are fixedly connected to multiple groups of base plates in a ring array, the outer side of a single base plate is fixedly connected to two guide rails by bolts, a frame is arranged between the two guide rails, the inner wall of the frame is fixedly connected to a bearing column one, the circumferential outer side of the bearing column one is movably connected to two rotating rings by bearings, the side wall of the rotating ring is fixed with a push rod by spot welding, and one end of the push rod is connected to a buffer resistance mechanism; compared with the prior art, the present invention is to set a buffer net to reduce the impact force of waves and filter debris, use the impact of waves on fenders to produce small-amplitude shaking, enhance the elasticity and adaptability of the wind power pile protection system, and improve the anti-scour resistance ability.

Description

Technical Field

[0001] The invention relates to the technical field of wind power equipment protection, in particular to anti-scour resistance equipment for wind power piles on the ocean. Background Art

[0002] Wind piles on the ocean are a key part of offshore wind power facilities. They are generally made of high-strength steel or concrete and are driven deep into the seabed. They bear huge loads such as the weight of the wind turbine, wind thrust, wave impact and current drag. They are high to lift the wind turbine to obtain strong and stable offshore wind resources. Their diameter varies according to design requirements and load conditions, and special anti-corrosion treatments and protective measures are usually used to resist seawater corrosion, marine biological attachment and various marine environmental factors. They are important infrastructure for achieving offshore wind power generation, promoting the development of renewable energy and reducing dependence on traditional fossil energy.

[0003] The Chinese patent application number is 2017112732199, which is a scour prevention device for offshore wind power piles. It uses a combination of an scour prevention cover and an elastic clamping member to protect the wind power pile foundation. The scour prevention cover can reduce the scouring of the pile foundation by waves and tides, adapt to complex terrain, is easy to install and operate, and has low maintenance costs. The elastic clamping member can compact the mud on the seabed surface to ensure the stability of the pile foundation. This method effectively ensures the stability of the wind power pile foundation, avoids wind turbine accidents, and has a simple structure and is easy to maintain.

[0004] However, in the actual use of the above-mentioned equipment, it is impossible to effectively filter the suspended particles and debris in the waves. Due to the lack of this important function, the suspended particles and debris will continue to have an adverse effect on the wind turbine piles, thereby accelerating the speed of destruction of the wind turbine piles. In addition, the above-mentioned equipment is mainly in direct contact with the waves through the anti-collision cover. This method fails to achieve step-by-step resistance to the waves, resulting in the strong impact force of the waves acting more directly on the anti-collision cover, which undoubtedly accelerates the degree of damage to the anti-collision cover, greatly reducing the device's ability to resist scouring by waves, and it is difficult to provide sufficiently reliable protection for wind turbine piles in harsh marine environments.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an anti-scour resistance device for offshore wind power piles to solve the problems mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an anti-scour resistance device for offshore wind power piles, comprising a wind power pile column, the outer side of the wind power pile column is fixedly connected to two arc-shaped cover shells by bolts, the outer side wall of the arc-shaped cover shell is fixedly connected to multiple groups of base plates in a ring array, the outer side of a single base plate is fixedly connected to two guide rails by bolts, a frame is arranged between the two guide rails, the inner wall of the frame is fixedly connected to a bearing column 1, the circumferential outer side of the bearing column 1 is movably connected to two rotating rings by bearings, the side wall of the rotating ring is fixed with a push rod by spot welding, and one end of the push rod is connected to a buffer resistance mechanism.

[0008] Furthermore, the buffer resistance mechanism includes a bearing column 2 and a rotating sleeve, the two ends of the bearing column 2 are respectively fixedly connected to the corresponding guide rails, the outer side of the circumference of the bearing column 2 is movably connected with two rotating sleeves through bearings, the outer wall of the rotating sleeve is fixedly connected with a rotating frame, a buffer plate is fixedly installed in the rotating frame by bolts, and one end of the push rod is rotatably connected to the buffer plate.

[0009] Furthermore, two inclined plane blocks are fixedly connected to the outer side wall of the buffer plate, the two inclined plane blocks are arranged in a mirror image, and inclined sliding grooves are provided inside the inclined plane blocks.

[0010] Furthermore, a slider is slidably connected in the inclined slide groove, a compression spring is fixedly connected between the slider and the inclined slide groove, a fender is arranged between the two sliders, the top and bottom ends of the fender are fixedly connected with ropes, and one end of the rope is fixedly connected to the corresponding slider.

[0011] Furthermore, the outer side of the base plate is symmetrically rotatably connected to two abutment rods 1, the outer side of the frame is symmetrically rotatably connected to two abutment rods 2, one end of the abutment rod 1 is rotatably connected to the abutment rod 2, the outer side of the abutment rod 1 is sleeved with a clamping sleeve, and screw holes are provided on the outer sides of the abutment rod 1, the abutment rod 2 and the clamping sleeve.

[0012] Furthermore, a plurality of groups of annular rods are sleeved on the outer side of the wind power pile column, a bearing rod is fixedly connected between the annular rods and the buffer plate, and a buffer net is fixedly installed between two of the annular rods.

[0013] Furthermore, a cover plate is sleeved on the outer side of the wind power pile column, a clamping frame is fixedly connected to the bottom of the cover plate, the clamping frame is clamped with the end of the buffer plate, and protrusions are fixedly connected to the top and bottom of the frame, and the protrusions are slidably connected in the corresponding guide rails.

[0014] The present invention also proposes an application method for an anti-scour resistance device for wind power piles on the sea, comprising the following process:

[0015] Process 1: When there are waves at the location of the wind turbine pile, the waves will first pass through the buffer net, which can reduce the impact of the waves and absorb part of the wave energy through its own flexibility and elasticity, thereby reducing the direct impact on the wind turbine pile and protecting the integrity of the pile structure;

[0016] Process 2: Most of the impact force of the waves passing through the buffer net has been reduced at this time. The waves that still have a certain impact force will continue to impact the fender and the buffer plate. After the fender is impacted, the slider is pulled by the rope. The distance between the two sliders above and below the fender gradually decreases. At this time, the originally straight rope becomes slightly loose;

[0017] When the rope is slightly relaxed, the fender increases its amplitude slightly due to the slight relaxation of the rope. The small increase in shaking indicates that the fender system can adapt to the changes in wave force to a certain extent, enabling it to maintain a certain stability and protection effect under different marine environmental conditions.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When the present invention is in use, a buffer net is set up so that it first contacts with the waves and reduces the impact force of the waves, so that the energy distribution of the processed waves is more uniform, and at the same time, it can filter the suspended particles and debris in the waves, intercept larger suspended particles and debris, and reduce their impact on the wind turbine piles. The impact of the waves on the fenders is used to make the ropes slightly loose under the action of the corresponding sliders. The fenders use the slightly loose ropes to produce a small swing. The small swing can make the fenders adapt to the changes in the power of the waves to a certain extent, which means that the entire wind turbine pile protection system has a certain elasticity and adaptability, and can maintain a certain stability and protection effect under different marine environmental conditions. The overall wind turbine pile's resistance to scouring by waves is further improved by setting a multi-layer resistance component, so as to further improve the resistance to waves, reduce the scouring force of waves on the wind turbine piles, and extend the service life of the wind turbine piles.

[0020] 2. The present invention can also add a corresponding number of buffer resistance mechanisms in the axial direction of the wind turbine pile column according to the depth of the sea area, that is, increase the number of matching buffer plates, fenders and buffer nets, which greatly enhances the ability of the wind turbine pile column to resist wave erosion, allowing the wind turbine pile to stand more firmly in the harsh marine environment. This not only reduces the risk of foundation damage caused by wave erosion, but also extends the service life of the wind turbine pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0022] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the guide rail structure in the present invention;

[0024] Figure 3 It is a schematic diagram of the connection state of the abutment rod 1 and the abutment rod 2 in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the buffer plate in the present invention;

[0026] Figure 5 It is a schematic diagram of the cover plate structure in the present invention;

[0027] Figure 6 A top view of the buffer plate structure in the present invention;

[0028] Figure 7 A top view of the guide rail structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the rope structure in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the inclined slide groove inside the inclined surface block of the present invention.

[0031] Figure numerals: 1. Wind power pile column; 2. Arc cover; 3. Base plate; 4. Guide rail; 5. Frame; 6. Bearing column one; 7. Rotating ring; 8. Push rod; 901. Bearing column two; 902. Rotating sleeve; 903. Buffer plate; 904. Inclined block; 905. Inclined slide groove; 906. Sliding block; 907. Fender; 908. Rope; 909. Rotating frame; 10. Abutment rod one; 11. Abutment rod two; 12. Snap-in sleeve; 13. Ring rod; 14. Bearing rod; 15. Buffer net; 16. Cover plate; 17. Snap-in frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: Figure 1-Figure 9 As shown, the wind power pile anti-scour resistance equipment for the sea includes a wind power pile column 1. It should be noted that the wind power pile column 1 is a prior art, and its function is to support wind power equipment, and it has the remarkable characteristics of quick installation and high stability. The outer side of the wind power pile column 1 is fixedly connected with two arc-shaped covers 2 by bolts;

[0034] like Figure 7 As shown, the inner walls of the two arc-shaped cover shells 2 fit the outer walls of the wind power pile column 1, and the arc-shaped cover shells 2 are spliced ​​and fixed to the outer side of the wind power pile column 1 by using multiple bolts. The outer side walls of the arc-shaped cover shells 2 are fixedly connected with multiple groups of base plates 3 in a circular array. The outer side of a single base plate 3 is fixedly connected with two guide rails 4 by bolts. A frame 5 is arranged between the two guide rails 4. The inner wall of the frame 5 is fixedly connected with a bearing column 6. The outer side of the circumference of the bearing column 6 is movably connected with two rotating rings 7 through bearings. The side wall of the rotating ring 7 is fixed with a push rod 8 by spot welding, and one end of the push rod 8 is connected to the buffer resistance mechanism.

[0035] The buffer resistance mechanism includes a bearing column 901 and a rotating sleeve 902. The two ends of the bearing column 901 are fixedly connected to the corresponding guide rails 4 respectively. The outer side of the circumference of the bearing column 901 is movably connected with two rotating sleeves 902 through bearings. The outer wall of the rotating sleeve 902 is fixedly connected with a rotating frame 909. A buffer plate 903 is fixedly installed in the rotating frame 909 by bolts. Since the buffer plate 903 is washed by waves for a long time, the speed of its damage will be accelerated. By clamping the buffer plate 903 inside the rotating frame 909, that is, the buffer plate 903 and the rotating frame 909 are detachably installed, the buffer plate 903 can be flexibly replaced and installed, which greatly improves the efficiency of disassembly and assembly of the buffer plate 903. One end of the push rod 8 is rotatably connected to the buffer plate 903.

[0036] Two inclined blocks 904 are fixedly connected to the outer wall of the buffer plate 903. The two inclined blocks 904 are arranged in a mirror image. An inclined groove 905 is opened inside the inclined block 904. A slider 906 is slidably connected in the inclined groove 905. A compression spring is fixedly connected between the slider 906 and the inclined groove 905. A fender 907 is arranged between the two sliders 906. It should be explained here that the material of the fender 907 can be replaced by rubber, polyurethane, steel, etc. The fender 907 made of rubber has the advantages of good elasticity, large energy absorption, and corrosion resistance; the fender 907 made of polyurethane has the characteristics of light weight and strong wear resistance. The fender 907 of corresponding material is selected according to the wave characteristics of the area where the wind turbine pile 1 is located. The top and bottom ends of the fender 907 are fixedly connected with ropes 908, and one end of the rope 908 is fixedly connected to the corresponding slider 906.

[0037] The outer side of the base plate 3 is symmetrically rotatably connected to two abutment rods 10, the outer side of the frame 5 is symmetrically rotatably connected to two abutment rods 11, one end of the abutment rod 10 is rotatably connected to the abutment rod 11, the outer side of the abutment rod 10 is sleeved with a clamping sleeve 12, and screw holes are provided on the outer sides of the abutment rod 10, the abutment rod 11 and the clamping sleeve 12. The outer side of the wind power pile column 1 is sleeved with multiple groups of annular rods 13, a bearing rod 14 is fixedly connected between the annular rod 13 and the buffer plate 903, and a buffer net 15 is fixedly installed between the two annular rods 13.

[0038] The outer side of the wind power pile column 1 is sleeved with a cover plate 16, the bottom of the cover plate 16 is fixedly connected with a clamping frame 17, the clamping frame 17 is clamped with the end of the buffer plate 903, the top and bottom of the frame 5 are fixedly connected with protrusions, and the protrusions are slidably connected in the corresponding guide rails 4.

[0039] The steps for unfolding and fixing the buffer plate 903 are as follows:

[0040] The buffer plate 903 is fixed in the rotating frame 909 by bolts, and the rotation connection between the abutting rod 10 and the abutting rod 2 11 is pressed by an external pressure mechanism. At this time, the frame 5 slides along the guide rail 4 under the action of the abutting rod 10 and the abutting rod 2 11, and the frame 5 moves toward the buffer plate 903. In this process, the push rod 8 rotates on the outside of the bearing column 1 6 through the rotating ring 7 and synchronously pushes the buffer plate 903 to deflect;

[0041] The buffer plate 903 drives the rotating frame 909 to deflect synchronously during the deflection process. The rotating frame 909 rotates stably on the outer side of the second bearing column 901 by using the corresponding rotating sleeve 902 until the buffer plate 903 deflects to the specified position. Figure 3 As shown, at this time, the clamping sleeve 12 is moved to the rotation connection between the abutting rod 10 and the abutting rod 2 11. It should be noted that the abutting rod 10 and the abutting rod 2 11 have the same diameter, and screw holes are provided on the outer sides of the abutting rod 10 and the abutting rod 2 11 and the outer side of the clamping sleeve 12. The clamping sleeve 12 is fixed to the abutting rod 10 and the abutting rod 2 11 by bolts. At this time, the abutting rod 10 and the abutting rod 2 11 cannot rotate under the action of the clamping sleeve 12, thereby achieving the fixation of the buffer plate 903;

[0042] In order to further increase the anti-scouring resistance of the buffer plate 903, as Figure 5As shown, a cover plate 16 is arranged on the outside of the wind power pile column 1, the inner side wall of the cover plate 16 fits the outer side wall of the wind power pile column 1, and the cover plate 16 is composed of two fan-shaped sub-cover shells combined into a circular cover shell, and a clamping frame 17 is fixedly connected to the bottom of the cover plate 16, and the clamping frame 17 clamps and fixes the end of the buffer plate 903 to prevent the buffer plate 903 from shaking significantly under the impact of waves. It should be noted that the clamping frame 17 is arranged at the top and bottom of the buffer plate 903 ( Figure 5 The clamping frame 17 at the bottom of the buffer plate 903 is not shown;

[0043] The present invention can also add a corresponding number of buffer resistance mechanisms in the axial direction of the wind turbine pile column 1 according to the depth of the sea area, that is, add a matching number of buffer plates 903, fenders 907 and buffer nets 15 in the axial direction of the wind turbine pile column 1, thereby greatly increasing the wind turbine pile column 1's ability to resist scouring by waves. This enables the wind turbine pile to stand more firmly in harsh marine environments, reduces the risk of foundation damage caused by wave scouring, extends the service life of the wind turbine pile, ensures the continuous and stable operation of wind power generation equipment, and also reduces the cost and difficulty of later maintenance and repair, providing a strong guarantee for the long-term sustainable development of offshore wind power projects.

[0044] During the long-term use of offshore wind power foundations, external environmental factors such as waves, wind and ocean currents will continue to impact and corrode wind power equipment. As time goes by, this situation will shorten the life of offshore wind power equipment and cause damage to the equipment. To solve this problem, the specific solutions are as follows:

[0045] In the specific setting, when there are waves at the position of the wind turbine pile column 1, the waves will first pass through the buffer net 15. The buffer net 15 can reduce the impact force of the waves, make the processed wave energy distribution more even, absorb part of the wave energy through its own flexibility and elasticity, reduce the direct impact on the wind turbine pile, protect the structural integrity of the pile body, reduce deformation and cracks and other damage, and at the same time reduce local scouring, change the flow pattern of waves, slow down the speed of waves, reduce the erosion of seabed by water flow, promote sediment deposition to enhance the stability of the seabed. In addition to the function of coping with the impact of waves on wind turbine piles, the buffer net 15 can also filter suspended particles and debris in the waves, intercept larger suspended particles and debris, and reduce their impact on wind turbine piles.

[0046] The impact force of the waves passing through the buffer net 15 has been largely reduced at this time. The waves that still have a certain impact force will continue to impact the fender 907 and the buffer plate 903. After the fender 907 is impacted, the slide block 906 is pulled by the rope 908. Fig. 9As shown, the slider 906 slides in the inclined slot 905, and the two sliders 906 located above and below the fender 907 slide along the inclined slot 905, and the distance between the two corresponding sliders 906 gradually decreases. At this time, the originally stretched rope 908 becomes slightly loose;

[0047] When the rope 908 is slightly loosened, the fender 907 can increase its amplitude slightly under the action of the rope 908. It should be noted that the length of the inclined slide 905 is very short, so that the fender 907 can have a slight shake under the impact of the waves, rather than a violent shake. The slight increase in shaking indicates that the fender 907 system can adapt to the changes in wave force to a certain extent, which means that the entire wind turbine pile protection system has a certain degree of elasticity and adaptability, and can maintain a certain stability and protection effect under different marine environmental conditions.

[0048] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-scour resistance device for wind power piles on the sea, comprising a wind power pile column (1), characterized in that: The wind power pile column (1) is fixedly connected to two arc-shaped covers (2) on its outer side by bolts, the outer side wall of the arc-shaped covers (2) is fixedly connected to a plurality of base plates (3) in a circular array, the outer side of a single base plate (3) is vertically fixedly connected to two guide rails (4) by bolts, and a frame (5) is provided between the two guide rails (4); The inner wall of the frame (5) is fixedly connected to a bearing column (6), the outer circumferential side of the bearing column (6) is movably connected to two rotating rings (7) via bearings, the side wall of the rotating ring (7) is fixed with a push rod (8) via spot welding, and one end of the push rod (8) is connected to a buffer resistance mechanism; The buffer resistance mechanism comprises a second bearing column (901) and a rotating sleeve (902), the two ends of the second bearing column (901) are respectively fixedly connected to corresponding guide rails (4), the outer side of the circumference of the second bearing column (901) is movably connected to two rotating sleeves (902) via bearings, the outer side wall of the rotating sleeve (902) is fixedly connected to a rotating frame (909), a buffer plate (903) is fixedly installed in the rotating frame (909) via bolts, and one end of the push rod (8) is rotatably connected to the buffer plate (903); The wind power pile column (1) is sleeved with a plurality of groups of annular rods (13) on the outside, a bearing rod (14) is fixedly connected between the annular rods (13) and the buffer plate (903), and a buffer net (15) is fixedly installed between two annular rods (13).

2. The anti-scour resistance equipment for offshore wind power piles according to claim 1 is characterized in that: Two inclined plane blocks (904) are vertically fixedly connected to the outer side wall of the buffer plate (903), the two inclined plane blocks (904) are arranged in a mirror image, and an inclined sliding groove (905) is provided inside the inclined plane block (904).

3. The anti-scour resistance equipment for offshore wind power piles according to claim 2 is characterized in that: A slider (906) is slidably connected in the inclined slide groove (905), a compression spring is fixedly connected between the slider (906) and the inclined slide groove (905), a fender (907) is arranged between the two sliders (906), a rope (908) is fixedly connected to the top and bottom ends of the fender (907), and one end of the rope (908) is fixedly connected to a correspondingly arranged slider (906).

4. The anti-scour resistance equipment for offshore wind power piles according to claim 1 is characterized in that: The outer side of the base plate (3) is symmetrically rotatably connected to two abutment rods (10), and the outer side of the frame (5) is symmetrically rotatably connected to two abutment rods (11). One end of the abutment rod (10) is rotatably connected to the abutment rod (11). The outer side of the abutment rod (10) is sleeved with a clamping sleeve (12). The outer sides of the abutment rod (10), the abutment rod (11) and the clamping sleeve (12) are all provided with screw holes.

5. The anti-scour resistance equipment for offshore wind power piles according to claim 1 is characterized in that: The wind power pile column (1) is sleeved with a cover plate (16) on the outside, the bottom of the cover plate (16) is fixedly connected to a clamping frame (17), the clamping frame (17) is clamped to the end of the buffer plate (903), and the top and bottom of the frame (5) are fixedly connected to protrusions, which are slidably connected in corresponding guide rails (4).

6. An application method for an anti-scour resistance device for wind power piles on the sea, using the anti-scour resistance device for wind power piles on the sea as claimed in claim 3, characterized in that: The process includes: Process 1: When there are waves at the location of the wind power pile column (1), the waves will first pass through the buffer net (15). The buffer net (15) can reduce the impact of the waves and absorb part of the wave energy through its own flexibility and elasticity, thereby reducing the direct impact on the wind power pile and protecting the integrity of the pile structure. Process 2: Most of the impact force of the waves passing through the buffer net (15) has been reduced. The waves that still have a certain impact force will continue to impact the fender (907) and the buffer plate (903). After the fender (907) is impacted, the slider (906) is pulled by the rope (908). The distance between the two sliders (906) above and below the fender (907) gradually decreases. At this time, the originally stretched rope (908) becomes slightly loose. When the rope (908) is slightly loosened, the fender (907) increases slightly in amplitude due to the slight loosening of the rope (908). The small increase in swaying indicates that the fender (907) system is able to adapt to changes in wave force to a certain extent, so that it can maintain a certain stability and protection effect under different marine environmental conditions.

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