Comprehensive fan protection device and construction method thereof

Abstract

The invention provides a comprehensive fan protection device and a construction method thereof.The comprehensive fan protection device comprises an anti-collision device and an anti-scouring device which are arranged on a fan foundation, and the anti-collision device is connected with the anti-scouring device; the anti-collision device comprises a first fixing ring and a plurality of anti-collision pieces, the fan foundation is sleeved with the first fixing ring, and the anti-collision pieces are arranged on the first fixing ring; the anti-scour device is of a conical structure and comprises a second fixing ring, a conical surface tire structure laid on the side face of the cone and a tiled tire structure laid on the bottom face of the cone, one end of the conical surface tire structure is connected with the second fixing ring, and the other end of the conical surface tire structure abuts against the tiled tire structure. The anti-collision and anti-scour fan has the anti-collision and anti-scour functions, and integrated comprehensive protection of the fan can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine protection, and in particular to a comprehensive wind turbine protection device and a construction method thereof. Background Art

[0002] The scour protection technologies currently implemented in domestic wind farms are mostly stone throwing and sandbag protection. Due to domestic construction conditions, stone throwing protection cannot achieve the ideal construction effect. The range, height and uniformity of stone throwing cannot be controlled, which ultimately leads to severe secondary scour. Sandbag protection has the risk of rupture and failure under the action of long-term water flow, so the existing scour protection measures are not ideal. The method of using tire protection is less used. Under the existing patents for using tire protection, the tires are mostly laid out in a flat manner. The overall protection effect is poor, and the mud and sand erosion under the tires is more serious. As for the physical anti-collision device of the wind turbine, due to the construction cost, the construction cost of the anti-collision device alone is relatively high. At present, there are no construction examples in domestic wind farms, and large-scale application cannot be achieved.

[0003] The invention with the publication number CN114508130A discloses an offshore wind turbine anti-scour structure and its setting method, including: a tire fixing bracket structure set around the pile column for weakening the submerged current, a flat tire structure and a vertical tire structure buried at a certain depth for weakening the horseshoe vortex, and a conical arc tire structure for weakening the tail vortex. However, the above-mentioned conical arc tire structure only selectively suspends part of the tire and is only used as a spoiler. It does not have the scour protection effect, wastes materials, increases costs, and the tire fixing bracket structure does not have an anti-collision function. Summary of the invention

[0004] The purpose of the present invention is to solve the defects in the prior art and provide a comprehensive wind turbine protection device and a construction method thereof, which has anti-collision and anti-scouring functions and can realize integrated comprehensive protection of the wind turbine.

[0005] To achieve the above object, the present invention provides a comprehensive wind turbine protection device, comprising an anti-collision device and an anti-scouring device arranged on a wind turbine foundation, wherein the anti-collision device is connected to the anti-scouring device;

[0006] The anti-collision device comprises a first fixing ring and a plurality of anti-collision parts, wherein the first fixing ring is sleeved on the fan base, and the plurality of anti-collision parts are arranged on the first fixing ring;

[0007] The anti-scour device is a conical structure, which includes a second fixing ring, a conical tire structure laid on the side of the cone and a flat tire structure laid flat on the bottom of the cone. One end of the conical tire structure is connected to the second fixing ring, and the other end is abutted against the flat tire structure.

[0008] A comprehensive wind turbine protection device in the present invention is divided into two parts, namely an anti-collision device and an anti-scouring device. The anti-collision device and the anti-scouring device are connected to ensure the stability of the structures of the two and realize integrated comprehensive protection of the wind turbine, which greatly reduces the complexity of the structures of the two and facilitates actual production and construction.

[0009] The anti-collision device includes a first fixing ring and a plurality of anti-collision parts. The plurality of anti-collision parts are arranged in a circular array around the wind turbine foundation through the first fixing ring. When an object collides with the wind turbine foundation, the anti-collision parts can effectively protect the wind turbine foundation.

[0010] The anti-scour device is made of waste tires, and one end of the conical tire structure is connected to the second fixed ring. The present invention uses waste tires, adopts cone protection to perform scour protection, and uses the conical tire structure to perform tire protection on the entire cone side, avoiding protection failure caused by tidal reversal, and has an effective scour protection effect. The conical tire structure laid on the entire side will deposit a large amount of silt downstream, which can achieve the function of water flow reduction and active siltation. The overall device of the present invention presents a porous structure, which provides a habitat for aquatic organisms, thereby achieving the purpose of attracting microorganisms, plants and small animals, and achieving the function of ecological restoration.

[0011] Optionally, the anti-collision component includes an anti-collision airbag and a waste tire arranged on the anti-collision airbag, and the waste tire is located on a side of the anti-collision airbag facing away from the wind turbine foundation.

[0012] Optionally, one end of the anti-collision member away from the first fixing ring is connected to the second fixing ring, thereby achieving connection between the anti-collision device and the anti-scouring device, and achieving stability of the anti-collision device and the anti-scouring device.

[0013] Optionally, the first fixing ring is provided with a plurality of first hanging buckles, and the anti-collision member is provided with buckles matching the first hanging buckles.

[0014] Optionally, a plurality of circumferentially movable third hooks are provided on the second fixing ring, and each of the third hooks is connected to the conical tire structure, so that the tire in the conical tire structure can move slightly under the action of water flow, thereby ensuring the stability of the conical tire structure.

[0015] Optionally, the conical tire structure is provided with multiple layers from the inside to the outside, and the outermost conical tire structure is connected to the second fixing ring. Compared with the scour protection method of the single-layer conical tire, the scour protection method of the multi-layer conical tire structure realizes the step-by-step energy dissipation of the water flow and has a better scour protection effect.

[0016] Optionally, the conical tire structures between adjacent layers are connected.

[0017] Optionally, the tire sizes of the flat tire structure and the conical tire structure gradually decrease from the outside to the inside.

[0018] Optionally, the ratio of adjacent tire diameters from outside to inside of the conical tire structure and the flat tire structure is:

[0019]

[0020] Where D is the diameter of the wind turbine foundation, and d is the diameter of the outermost tire in the conical tire structure or the flat tire structure.

[0021] Optionally, the angle between the conical tire structure and the horizontal plane is 30 degrees, which is close to the sediment repose angle, thereby achieving sediment re-deposition to the greatest extent.

[0022] The present invention also provides a construction method according to the above-mentioned wind turbine comprehensive protection device, characterized in that it comprises the following steps:

[0023] S1, installing the first fixing ring on the fan foundation, and installing a plurality of anti-collision parts on the first fixing ring 21;

[0024] S2, connecting the end of the anti-collision member away from the first fixing ring to the second fixing ring;

[0025] S3. Lay a flat tire structure around the wind turbine foundation, and splice a conical tire structure around the wind turbine foundation;

[0026] S4, connecting the top tire of the conical tire structure to the second fixing ring to achieve three-dimensional laying of the conical tire structure.

[0027] Beneficial effects:

[0028] 1. A comprehensive protection device for a wind turbine in the present invention is divided into two parts, namely, an anti-collision device and an anti-scouring device. The anti-collision device and the anti-scouring device are connected to ensure the stability of the structures of the two and realize integrated comprehensive protection of the wind turbine, which greatly reduces the complexity of the structures of the two and facilitates actual production and construction.

[0029] The anti-collision device includes a first fixed ring and multiple anti-collision parts. The multiple anti-collision parts are arranged in a circular array around the wind turbine foundation through the first fixed ring. When an object collides with the wind turbine foundation, the anti-collision parts can gradually reduce the impact energy, thereby effectively protecting the wind turbine foundation.

[0030] The anti-scour device is made of waste tires, and one end of the conical tire structure is connected to the second fixed ring. The present invention uses waste tires, adopts cone protection to perform scour protection, and uses the conical tire structure to perform tire protection on the entire cone side, avoiding protection failure caused by tidal reversal, and has an effective scour protection effect. The conical tire structure laid on the entire side will deposit a large amount of silt downstream, which can achieve the function of water flow reduction and active siltation. The overall device of the present invention presents a porous structure, which provides a habitat for aquatic organisms, thereby achieving the purpose of attracting microorganisms, plants and small animals, and achieving the function of ecological restoration.

[0031] 2. The anti-collision component in the present invention includes an anti-collision airbag and a first tire arranged on the anti-collision airbag. The first tire arranged on the outer side of the anti-collision component plays a first layer of protection effect, and the anti-collision airbag plays a secondary role in reducing the impact energy, thereby realizing a step-by-step reduction of the impact force.

[0032] 3. The conical tire structure is provided with multiple layers from the inside to the outside, and the outermost conical tire structure is connected to the second fixing ring. Compared with the scour protection method of the single-layer conical tire, the scour protection method of the multi-layer conical tire structure realizes the step-by-step energy dissipation of the water flow and has a better scour protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 It is a structural diagram of a comprehensive wind turbine protection device disclosed in the present invention;

[0035] Figure 2 It is a structural diagram of an anti-collision device in a comprehensive wind turbine protection device disclosed in the present invention;

[0036] Figure 3 It is a structural diagram of an anti-scouring device in a comprehensive wind turbine protection device disclosed in the present invention;

[0037] Figure 4 It is a structural diagram of a conical tire structure in a comprehensive wind turbine protection device disclosed in the present invention;

[0038] Figure 5 It is a schematic diagram of the connection between the second fixing ring and the conical tire structure in a comprehensive wind turbine protection device disclosed in the present invention;

[0039] Figure 6It is a structural diagram of a second fixing ring in a comprehensive wind turbine protection device disclosed in the present invention;

[0040] Figure 7 It is a structural diagram of a flat tire structure in a comprehensive wind turbine protection device disclosed in the present invention;

[0041] Figure 8 This is the scour topography for the indoor water tank test without protection;

[0042] Fig. 9 It is a scouring topographic map during an indoor water tank test in which the anti-scouring device in the comprehensive wind turbine protection device disclosed in the present invention is used for protection;

[0043] Fig.10 Shown is the scour topography during an indoor flume test using flat tire protection.

[0044] Reference numerals:

[0045] Label name Label name 1 Fan foundation 31 Second fixing ring 2 Anti-collision device 311 Second hanging buckle 21 First fixed circle 312 The third hook 22 Anti-collision parts 32 Cone tire structure 221 Anti-collision airbag 321 First connecting piece 222 First Tire 33 Flat tire structure 23 Buckle 331 Second connecting piece 3 Anti-scour device 332 Bionic water plants

[0046] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] 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.

[0048] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0049] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] Embodiment 1:

[0051] See also Figure 1-7 According to a first embodiment of the present invention, a wind turbine integrated protection device comprises an anti-collision device 2 and an anti-scouring device 3 arranged on a wind turbine foundation 1, wherein the anti-collision device 2 is connected to the anti-scouring device 3;

[0052] The anti-collision device 2 includes a first fixing ring 21 and a plurality of anti-collision members 22, wherein the first fixing ring 21 is sleeved on the wind turbine foundation 1, and the plurality of anti-collision members 22 are arranged on the first fixing ring 21;

[0053] The anti-scour device 3 is a conical structure, which includes a second fixed ring 31, a conical tire structure 32 laid on the side of the cone, and a flat tire structure 33 laid flat on the bottom of the cone. One end of the conical tire structure 32 is connected to the second fixed ring 31, and the other end is abutted against the flat tire structure 33. The end of the anti-collision component 22 away from the first fixed ring 21 is connected to the second fixed ring 31.

[0054] Specifically, a comprehensive wind turbine protection device in the present invention is divided into two parts, namely an anti-collision device 2 and an anti-scour device 3, which realizes integrated comprehensive protection of the wind turbine, greatly reduces the complexity of the structures of the two, and facilitates actual production and construction.

[0055] The anti-collision device 2 includes a first fixing ring 21 and a plurality of anti-collision members 22 . The plurality of anti-collision members 22 surround the wind turbine foundation 1 in a circular array through the first fixing ring 21 . When an object collides with the wind turbine foundation 1 , the anti-collision members 22 can effectively protect the wind turbine foundation 1 .

[0056] The anti-scour device 3 is made of waste tires, and one end of the conical tire structure 32 is connected to the second fixed ring 31. The present invention uses waste tires, adopts cone protection to perform scour protection, and uses the conical tire structure 32 to perform tire protection on the entire cone side, avoiding protection failure caused by tidal reversal, and has an effective scour protection effect. The conical tire structure 32 laid on the entire side will deposit a large amount of silt downstream, which can achieve the function of water flow reduction and active siltation. The overall device of the present invention presents a porous structure, which provides a habitat for aquatic organisms, thereby achieving the purpose of attracting microorganisms, plants and small animals, and achieving the function of ecological restoration.

[0057] See also Figure 2 In some embodiments of the present invention, the anti-collision member 22 includes an anti-collision airbag 221 and a first tire 222 arranged on the anti-collision airbag 221, the first tire 222 is located on the side of the anti-collision airbag 221 facing away from the wind turbine foundation 1, and the end of the anti-collision member 22 away from the first fixing ring 21 is connected to the second fixing ring 31.

[0058] In this embodiment, the first tire 222 is a waste tire, and the first tire 222 is connected to the anti-collision airbag 221 through a process such as hot melting, and three first tires 222 are arranged vertically on each anti-collision airbag 221. The first tire 222 arranged on the outer side of the anti-collision member 22 plays a first layer of protection effect, and the anti-collision airbag 221 plays a role in reducing the impact energy for a second time, thereby realizing a step-by-step reduction of the impact force.

[0059] The two connected anti-collision members 22 form a group, and the anti-collision device 2 includes multiple groups of anti-collision members 22. The anti-collision airbags 221 in the group are connected by hanging buckles 23. One end of each group of anti-collision airbags 221 is connected to the first fixing ring 21, and the other end is connected to the first fixing ring 21 through a mooring cable, thereby realizing the connection between the anti-collision device 2 and the anti-scouring device 3, ensuring the stability of the structures of the two. The mooring cable is a synthetic fiber cable, which has the characteristics of light weight, corrosion resistance and high strength.

[0060] The size of the anti-collision airbag 221 is determined by the size of the navigable ships near the wind farm and the tidal range in the sea area. The outer layer of the anti-collision airbag 221 is made of high-strength polyethylene material, which has good wear resistance and tear resistance, and also has the characteristics of chemical corrosion resistance. The vertical size of the anti-collision airbag 221 is set at about 2m-4m, which meets the tidal level difference and ship collision range in China's sea areas. The size of the vertical anti-collision airbag 221 can be manufactured according to actual needs.

[0061] The inner liner of the anti-collision airbag 221 is made of polyurethane material. By adjusting the components, the stiffness and anti-collision performance of the material are further controlled to achieve long-term effective protection.

[0062] See also Figure 5 and 6 In some embodiments of the present invention, a plurality of third hooks 312 that can move circumferentially are provided on the second fixing ring 31 , and each of the third hooks 312 is connected to the conical tire structure 32 .

[0063] In this embodiment, the second fixed ring 31 is equipped with a plurality of movable third hooks 312, and a slide rail is provided on the second fixed ring 31. The third hooks 312 are connected to the slide rail. The number of the third hooks 312 matches the number of top tires of the conical tire structure 32. The third hooks 312 are used to connect with the top tires of the conical tire structure 32, so that the tires in the conical tire structure 32 can move slightly under the action of water flow, thereby ensuring the stability of the conical tire structure 32.

[0064] See also Figure 2 In some embodiments of the present invention, the first fixing ring 21 is provided with a plurality of first hanging buckles, and the anti-collision member 22 is provided with buckles matching the first hanging buckles.

[0065] In this embodiment, the top anti-collision airbag 221 in a group of anti-collision parts 22 is hung on the first hanging buckle of the first fixing ring 21 by a buckle, the top single degree of freedom of the top anti-collision airbag 221 is fixed, one end of the bottom anti-collision airbag 221 is connected to the top anti-collision airbag 221 by a hanging buckle 23, and the other end is connected to the second hanging buckle 311 of the second fixing ring 31 by a mooring cable. The bottom anti-collision airbag 221 limits the movement range by the mooring cable, limits the movement range of the anti-collision airbag 221, increases the stability of the anti-collision airbag 221, and enables the anti-collision airbag 221 to maintain a certain degree of freedom, ensuring that the anti-collision airbag 221 moves within a certain range at sea level.

[0066] See also Figure 3 and 4 In some embodiments of the present invention, the conical tire structure 32 is provided with multiple layers from the inside to the outside, and the outermost conical tire structure 32 is connected to the second fixing ring 31 .

[0067] The conical tire structure 32 has three layers from the inside to the outside. Compared with the scour protection method of the single-layer conical tire, the scour protection method of the multi-layer conical tire structure 32 realizes the step-by-step energy dissipation of the water flow and has a better scour protection effect.

[0068] See also Figure 4 In some embodiments of the present invention, the conical tire structures 32 between adjacent layers are connected.

[0069] In this embodiment, the outermost conical tire structure 32 is connected to the second fixing ring 31 through the first connecting member 321, the conical tire structures 32 between adjacent layers are connected through the first connecting member 321, and the innermost conical tire structure 32 is connected to the flat tire structure 33 through the first connecting member 321, so as to realize the three-dimensional laying of the inner tire. The first connecting member 321 is an anchor chain or a rope.

[0070] See also Figure 3 and 4 In some embodiments of the present invention, the tire sizes of the flat tire structure 33 and the conical tire structure 32 gradually decrease from the outside to the inside.

[0071] See also Figure 3 In some embodiments of the present invention, the ratio of adjacent tire diameters from outside to inside of the conical tire structure 32 and the flat tire structure 33 is:

[0072]

[0073] Wherein D is the diameter of the wind turbine foundation 1 , and d is the diameter of the outermost tire in the conical tire structure 32 or the flat tire structure 33 .

[0074] The tires are arranged in an annular direction to ensure the maximum laying density of the tires. The outermost tire diameter in the conical tire structure 32 is the same as the outermost tire diameter in the flat tire structure 33. In this embodiment, the overall protection range of the device is 3 times the diameter of the wind turbine foundation 1, and the distance between the outermost side of the flat tire structure 33 or the conical tire structure 32 and the wind turbine foundation 1 is 1 times the diameter of the wind turbine foundation 1, so as to achieve the optimal solution for the anti-scouring effect. The multi-layer tire has three layers, and the distances between each layer of the conical tire structure 32 and the wind turbine foundation 1 from the outside to the inside are D, 2 / 3D, and 1 / 3D respectively.

[0075] See also Figure 3 In some embodiments of the present invention, the angle between the conical tire structure 32 and the horizontal plane is 30 degrees, which is close to the sediment repose angle, and achieves sediment re-silting to the greatest extent.

[0076] The adjacent tires in the conical tire structure 32 and the adjacent tires in the flat tire structure 33 are connected by a second connecting member 331. The second connecting member 331 includes a rope and a hook. The tires are softly connected by the rope, and the rope is fixed to the tire by the hook, thereby avoiding stress concentration during construction and causing damage to the device.

[0077] The outermost tire of the flat tire structure 33 is embedded with a counterweight and bionic water grass 332 to ensure the counterweight and stability of the cone tire device, and to achieve the first layer of weakening of the incoming flow strength, reducing the scouring of the outer edge of the cone tire device. At the same time, the innermost tire of the flat tire structure 33 is embedded with bionic water grass 332 to reduce the strength of the horseshoe vortex again. The use of tires can also maintain the stability of bionic water grass 332. The combination of bionic water grass 332 and three-dimensional paving tires can achieve the dual functions of scouring protection and artificial fish reefs with ecological restoration. A large amount of silt will be deposited downstream, which can achieve the function of ecological restoration.

[0078] Embodiment 2:

[0079] See also Figure 1-7 According to the second embodiment of the present invention, a construction method of the wind turbine integrated protection device comprises the following steps:

[0080] S1, installing the first fixing ring 21 on the wind turbine pile, and installing a plurality of anti-collision members 22 on the first fixing ring 21;

[0081] S2, connecting the end of the anti-collision member 22 away from the first fixing ring 21 to the second fixing ring 31;

[0082] S3, laying a flat tire structure 33 around the wind turbine pile, and splicing a conical tire structure 32 around the wind turbine pile;

[0083] S4, connecting the top tire of the conical tire structure 32 to the second fixing ring 31 to achieve three-dimensional laying of the conical tire structure 32.

[0084] A comprehensive wind turbine protection device specifically includes the following steps, and the construction sequence is to first construct the anti-collision device 2, perform mooring installation, and then install the anti-scour device 3.

[0085] 1. Construction and mooring installation of anti-collision device 2:

[0086] The construction process is: construction preparation - foundation inspection - installation of anti-collision parts 22 - inspection and acceptance.

[0087] 1. Construction preparation: Ensure that the quantity and quality of the anti-collision parts 22 and related accessories meet the design and specification requirements, and prepare the equipment required for construction, such as cranes, air pumps, etc.

[0088] 2. Foundation inspection: Check whether the surface of the fan foundation 1 is flat, and perform surface leveling and anti-corrosion work.

[0089] 3. Installation of anti-collision member 22 and mooring installation: The anti-collision member 22 needs to be prefabricated, the first tire 222 is connected to the anti-collision airbag 221, and transported to the wind farm by a construction ship for installation. The specific installation process is as follows:

[0090] (a) Before installation, the first fixing ring 21 is fixed to the fan foundation 1 by bolts or connection points;

[0091] (b) The anti-collision airbag 221 is connected to the mooring rope. The bottom anti-collision airbag 221 is connected to the second fixing ring 31 on the construction ship through the mooring rope before construction. According to the actual construction situation, since it is inconvenient to move the ship after positioning and anchoring, the fixing ring 31 can be divided into 2 parts or 4 parts according to the actual situation, and the parts are fastened by bolts.

[0092] (c) The top anti-collision airbag 221 is installed. The buckle on the top anti-collision airbag 221 is hung on the first hook of the first fixing ring 21. At the same time, the bottom anti-collision airbag 221 is connected to the second fixing ring 31 through the mooring cable. After the connection is completed, part of the second fixing ring 31 is hung on the tower 1 through the connection point, waiting for the ship to move to the other side of the wind turbine for construction.

[0093] (d) Connecting the second fixing ring 31 After the construction of the anti-collision airbag 221 and the first fixing ring 21 is completed, the second fastening ring 31 is connected by bolt connectors.

[0094] 4. Inspection and acceptance: The anti-collision member 22 must be inspected and accepted after installation.

[0095] 2. Construction of the anti-scour device 3: The scour protection device is prefabricated on the shore as a whole and is hoisted and constructed on site. According to the size of the wind turbine foundation 1, the conical tire structure 32 is divided into 4-6 blocks for assembly. During the prefabrication of the device, the inner and outer three layers of the conical tire structure 32 are connected by the first connecting member 321. During the on-site construction, the top layer of the conical tire structure 32 is first connected to the second fixing ring 31. Then the second fixing ring 31 is released, and the anti-scour device 3 is hoisted and constructed with the assistance of divers. During the construction, the block frame of the conical tire structure 32 is used to hoist the tire, and then the underwater divers splice the different blocks. First, the flat tire structure 33 is connected on site, and then the different tire blocks of the conical tire structure 32 are connected. The top layer of the conical tire structure 32 is connected to the second fixing ring 31. The height of the second fixing ring 31 is controlled by the mooring cable. The conical tire structure 32 is connected to the second fixing ring 31 to achieve the three-dimensional laying of the tire of the conical tire structure 32.

[0096] In order to verify the anti-scouring effect of the cone tire device, an indoor water tank physical model scouring experiment was conducted. The indoor water tank test results are as follows:

[0097] Through indoor water tank tests, it was found that the anti-scour device 3 was arranged around the wind turbine foundation 1 to provide scour protection for the wind turbine foundation 1. After the experiment in which the angle between the conical tire structure 32 of the anti-scour device 3 and the horizontal plane was 30° and the number of layers of the conical tire structure 32 was 3, the maximum scour depth around the wind turbine foundation 1 was reduced by 70% compared with the unprotected case. The scour depth at the edge of the anti-scour device 3 was larger, but the scour was far away from the wind turbine foundation 1. At the same time, it was found that since the device affected the generation and shedding of the wake vortex street, the silt was deposited downstream behind the pile, and the overall protection effect was good.

[0098] See also Figure 5 , is the scouring topography of the indoor water tank test without protection, the maximum scouring depth is S0 / D=0.745. Figure 6 , is the scouring topography during the indoor water tank test using the anti-scouring device 3 of the present invention, the maximum scouring depth is S p / D=0.095, the scour reduction efficiency reaches 87%; see Figure 7 , is the scouring topography of the indoor water tank test with only flat tire protection, and the maximum scouring depth is S p / D=0.385, the scouring reduction efficiency is 52%.

[0099] The scour reduction efficiency formula is as follows:

[0100]

[0101] Among them, S0 is the equilibrium scour depth without protection, S p is the scouring depth after protection, K p The scouring reduction efficiency of the device.

[0102] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A comprehensive protection device for a fan, characterized in that: It includes an anti-collision device and an anti-scouring device arranged on the foundation of the fan, wherein the anti-collision device is connected to the anti-scouring device; The anti-collision device comprises a first fixing ring and a plurality of anti-collision parts, wherein the first fixing ring is sleeved on the fan base, and the plurality of anti-collision parts are arranged on the first fixing ring; The anti-scour device is a conical structure, which includes a second fixed ring, a conical tire structure laid on the side of the cone and a flat tire structure laid flat on the bottom of the cone. One end of the conical tire structure is connected to the second fixed ring, and the other end is abutted against the flat tire structure. The end of the anti-collision part away from the first fixed ring is connected to the second fixed ring.

2. The integrated wind turbine protection device according to claim 1 is characterized in that: The anti-collision component comprises an anti-collision airbag and a waste tire arranged on the anti-collision airbag, wherein the waste tire is located on a side of the anti-collision airbag facing away from the wind turbine foundation.

3. The integrated wind turbine protection device according to claim 1 is characterized in that: The first fixing ring is provided with a plurality of first hanging buckles, and the anti-collision component is provided with buckles matching the first hanging buckles.

4. The integrated wind turbine protection device according to claim 1 is characterized in that: The second fixing ring is provided with a plurality of third hooks which can move in an annular direction, and each of the third hooks is connected to the conical tire structure.

5. The integrated wind turbine protection device according to claim 1 is characterized in that: The conical tire structure is provided with multiple layers from the inside to the outside, and the outermost conical tire structure is connected to the second fixing ring.

6. The integrated wind turbine protection device according to claim 5 is characterized in that: The conical tire structures between the adjacent layers are connected.

7. The integrated wind turbine protection device according to any one of claims 1 to 6, characterized in that: The tire sizes of the flat tire structure and the conical tire structure gradually decrease from the outside to the inside.

8. The integrated wind turbine protection device according to claim 7 is characterized in that: The ratio of adjacent tire diameters from outside to inside of the conical tire structure and the flat tire structure is: Where D is the diameter of the wind turbine foundation, and d is the diameter of the outermost tire in the conical tire structure or the flat tire structure.

9. The integrated wind turbine protection device according to any one of claims 1 to 6, characterized in that: The angle between the conical tire structure and the horizontal plane is 30 degrees.

10. A construction method of a wind turbine integrated protection device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Install the first fixing ring on the fan foundation, and install a plurality of anti-collision parts on the first fixing ring 21; S2, connecting the end of the anti-collision member away from the first fixing ring to the second fixing ring; S3. Lay a flat tire structure around the wind turbine foundation, and splice a conical tire structure around the wind turbine foundation; S4, connecting the top tire of the conical tire structure to the second fixing ring to achieve three-dimensional laying of the conical tire structure.

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