Wind turbine blade anti-collision pad and method of installing the same

Abstract

The application provides a wind turbine blade anti-collision pad and a mounting method thereof. The wind turbine blade anti-collision pad is used for sleeving on a wind turbine blade. The wind turbine blade anti-collision pad is provided with a through hole for the wind turbine blade to pass through. The wind turbine blade anti-collision pad is provided with an air bag cavity surrounding the through hole. The wind turbine blade anti-collision pad is provided with an air valve communicating with the air bag cavity. The air valve is used for inflating the wind turbine blade anti-collision pad to tighten the wind turbine blade through the wind turbine blade anti-collision pad in an inflated and clamped state. The wind turbine blade anti-collision pad has the advantages of low manufacturing cost, light overall weight, excellent buffering and anti-collision performance, small storage volume, low transportation cost, convenient mounting and dismounting operation and less working hours consumption.

Description

Technical Field

[0001] This invention relates to the field of wind power generation equipment technology, and in particular to a wind turbine blade anti-collision pad and its installation method. Background Technology

[0002] With the rapid development of the global clean energy industry, wind power has been widely used as an important form of renewable energy. Wind turbine blades, as the core component of wind turbine generators, are characterized by their large size, heavy weight, and high structural strength requirements. During the maritime transport of wind turbine blades, to fully utilize ship deck space, they are typically placed in multiple layers, stacked side-by-side. In existing transportation methods, fixed supports are generally installed at the root and middle of the wind turbine blades to achieve load-bearing and lateral restraint.

[0003] However, since wind turbine blades can reach lengths of tens or even hundreds of meters, the approximately half-length section near the blade tip has significant structural protection defects during transportation. This section of the blade is far from the fixed support point and, under its own weight, coupled with the vibration acceleration generated by the ship's movement and external environmental factors such as complex sea airflow disturbances, is highly susceptible to irregular swaying and vibration. When the swaying amplitude reaches a certain level, direct contact and collision will occur between adjacent wind turbine blades, resulting in damage to the surface, leading edge, or trailing edge structure of the wind turbine blades, severely affecting the quality and subsequent performance of the wind turbine blades.

[0004] To prevent such collision damage, the industry currently widely uses foamed plastic (such as polystyrene foam) crash pads as a temporary protective measure. These crash pads are manufactured on-site using a multi-layer manual bonding process and wrapped around the impact-prone areas of wind turbine blades. However, existing foamed plastic crash pad solutions have the following significant drawbacks: First, although the density of the foamed material is low, a large volume needs to be designed to achieve sufficient cushioning thickness, resulting in a heavy overall weight and increasing the burden on transportation and installation operations; second, the manufactured crash pads occupy a large space, making them inconvenient for storage and transportation; third, the on-site manual bonding process is cumbersome, with low installation efficiency, and the harsh marine operating environment makes operation inconvenient; finally, the disassembly process after transportation is also time-consuming and labor-intensive, and the foamed material is prone to generating debris pollution, which does not meet environmental protection requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a wind turbine blade anti-collision pad and its installation method, aiming to solve the problems of many drawbacks of existing wind turbine blade anti-collision pads.

[0006] To address the aforementioned technical problems, this invention provides a wind turbine blade anti-collision pad for mounting on a wind turbine blade. The anti-collision pad has a through hole through which the wind turbine blade passes. An air bladder cavity surrounding the through hole is provided inside the anti-collision pad. An air valve communicating with the air bladder cavity is provided on the anti-collision pad. The air valve is used to inflate the anti-collision pad, thereby tightening the wind turbine blade through the inflated and clamped state of the anti-collision pad.

[0007] In some embodiments, the wind turbine blade anti-collision pad includes: An inflatable cushion, wherein an individual cavity is provided inside the inflatable cushion, and multiple inflatable cushions are provided. The multiple inflatable cushions are sequentially spliced ​​along the circumference of the through hole or along the length of the wind turbine blade, and the individual cavities of the multiple inflatable cushions form the airbag cavity. A splicing connector is disposed between multiple inflatable pads to detachably connect the multiple inflatable pads.

[0008] In some embodiments, two inflatable pads are provided, and the two inflatable pads are spliced ​​together along a direction perpendicular to the length direction of the wind turbine blade. Two grooves are respectively provided on the surfaces of the two inflatable pads that are close to each other, and the two grooves enclose each other to form the through hole.

[0009] In some embodiments, two inflatable pads are provided, and the two inflatable pads are spliced ​​together along a direction perpendicular to the length direction of the wind turbine blade. Two grooves are respectively provided on the surfaces of the two inflatable pads that are close to each other, and the two grooves enclose each other to form the through hole.

[0010] In some embodiments, one of the two grooves is for the portion of the wind turbine blade near the trailing edge to pass through, and the other is for the portion of the wind turbine blade near the leading edge to pass through.

[0011] In some embodiments, the inflatable cushion includes an inflatable cushion unit and a stacking connector. The inflatable cushion unit has a cavity inside. Multiple inflatable cushion units are stacked along the length of the wind turbine blade. The stacking connector is disposed between the multiple inflatable cushion units to detachably connect the multiple inflatable cushion units.

[0012] In some embodiments, the air valve is provided on the air cushion unit to inflate the air cushion unit through the air valve, wherein: The air valve is located at one end of the inflatable pad unit in the groove width direction; and / or, The air valve is located on the surface of the inflatable cushion unit that is perpendicular to the length direction of the wind turbine blade.

[0013] In some embodiments, the stacking connector includes a first stacking connector, wherein the first stacking connector is disposed at one end of the inflatable pad away from the groove opening; and / or, The stacking connector includes a second stacking connector, and the inflatable pad is wound around at least one end of the groove in the groove width direction with the second stacking connector.

[0014] In some embodiments, the splicing connector includes a first splicing connector, and a plurality of first splicing connectors are spaced apart at the splice joint of the two inflatable pads along the groove width direction. The inflatable pad has a first splicing connector on at least one side of the wind turbine blade in the length direction; and / or, The splicing connector includes a second splicing connector, and the wind turbine blade anti-collision pad is wound around at least one end of the groove in the groove width direction with the second splicing connector.

[0015] In some embodiments, a boss is provided on the surface of the inflatable pad away from the groove opening, and the portion of the groove near the bottom of the groove is located on the boss.

[0016] In some embodiments, the surface of the boss away from the groove opening is provided with a splicing collision surface, the splicing collision surface being perpendicular to the splicing direction of the two inflatable pads; and / or, From the end of the boss near the opening of the groove to the end away from the opening of the groove, the size of the boss gradually decreases in the groove width direction.

[0017] In some embodiments, the inflatable pad is provided with groove width-direction collision surfaces on two opposing surfaces of the groove in the groove width direction, and the groove width-direction collision surfaces are perpendicular to the groove width direction of the groove.

[0018] In some embodiments, an anti-slip layer is provided on the inner wall of the through hole; and / or, the through hole is a contour hole adapted to the shape of the wind turbine blade.

[0019] To achieve the above objectives, the present invention also provides a method for installing a wind turbine blade anti-collision pad, comprising: The multiple air pads of the wind turbine blade anti-collision pad are pre-inflated; Multiple inflatable pads are placed at predetermined protective positions on the wind turbine blades; Then inflate the multiple air pads until they press firmly against the wind turbine blades; Multiple inflatable pads are fixedly connected by splicing connectors for the wind turbine blade anti-collision pads.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The wind turbine blade anti-collision pad of the present invention adopts a buffer airbag structure. This wind turbine blade anti-collision pad has comprehensive technical advantages such as low manufacturing cost, light weight, excellent buffering and anti-collision performance, small storage volume, low transportation cost, convenient installation and disassembly, and low labor consumption. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the structure of the anti-collision pad for wind turbine blades in an embodiment of the present invention; Figure 2 for Figure 1 Front view of the anti-collision pad for a medium-sized wind turbine blade; Figure 3 for Figure 1 A magnified view of a section at point A in the middle; Figure 4 This is a flowchart illustrating the installation method of the wind turbine blade anti-collision pad in an embodiment of the present invention.

[0023] Explanation of reference numerals in the accompanying drawings of this invention: Wind turbine blade anti-collision pad 100, inflatable pad 1, first inflatable pad 1a, second inflatable pad 1b, groove 11, first groove 11a, second groove 11b, inflatable pad unit 12, first inflatable pad unit 12a, second inflatable pad unit 12b, stacking connector 13, first stacking connector 13a, second stacking connector 13b, boss 14, first boss 14a, second boss 14b, splicing collision surface 15, first splicing collision surface 15a, second splicing collision surface 15b, groove width collision surface 16, first groove width collision surface 16a, second groove width collision surface 16b, anti-slip layer 17, splicing connector 2, first splicing connector 2a, second splicing connector 2b, through hole 3, air valve 4, first air valve 4a, second air valve 4b.

[0024] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0028] This invention provides a wind turbine blade anti-collision pad. Figures 1 to 3 A preferred embodiment of the wind turbine blade anti-collision pad provided by the present invention is shown.

[0029] Please see Figures 1 to 3 In some embodiments, the wind turbine blade anti-collision pad 100 is used to be fitted onto a wind turbine blade (not shown in the figure). The wind turbine blade anti-collision pad 100 is provided with a through hole 3 for the wind turbine blade to pass through. The wind turbine blade anti-collision pad 100 is provided with an air bladder cavity surrounding the through hole 3. The wind turbine blade anti-collision pad 100 is provided with an air valve 4 communicating with the air bladder cavity. The air valve 4 is used to inflate the wind turbine blade anti-collision pad 100 so as to tighten the wind turbine blade through the wind turbine blade anti-collision pad 100 in the expanded and tightened state.

[0030] Specifically, the wind turbine blade impact pad 100 can be fitted onto the wind turbine blade, serving as a collision protection pad for marine stacking of wind turbine blades. The wind turbine blade impact pad 100 is typically made of composite materials and can be manufactured through methods such as splicing and thermoforming or sheet forming. The specific material of the wind turbine blade impact pad 100 can be determined according to actual conditions; for example, it can be made of composite materials such as PVC (polyvinyl chloride) mesh fabric or PVC space-sealing fabric. Optionally, please refer to... Figures 1 to 3 In some embodiments, the wind turbine blade anti-collision pad 100 is made of PVC double-coated 1000D nylon mesh fabric. Combined with the shape segmentation and sheet forming process, the wind turbine blade anti-collision pad 100 can form a complete spatial conformal structure.

[0031] The wind turbine blade impact pad 100 is provided with an annular air bladder cavity, which is arranged around the outer ring of the through hole 3. The wind turbine blade impact pad 100 is typically equipped with an inflation / deflation structure such as an air valve 4. External gas can be injected into the air bladder cavity of the wind turbine blade impact pad 100 through the inflation / deflation structure, and gas inside the air bladder cavity can also be discharged through the inflation / deflation structure, thereby realizing the inflation / deflation of the wind turbine blade impact pad 100 through the inflation / deflation structure. The specific configuration of the inflation / deflation structure can be set according to the actual situation; optionally, please refer to [reference needed]. Figures 1 to 3 In some embodiments, an air valve 4 is provided on the wind turbine blade impact pad 100 to inflate the wind turbine blade impact pad 100. The air valve 4 can be used only for inflating the wind turbine blade impact pad 100; the air valve 4 can be used for both inflating and deflating the wind turbine blade impact pad 100. The following description will take the example of the wind turbine blade impact pad 100 being equipped with an air valve 4 and the air valve 4 being used for inflating and deflating the wind turbine blade impact pad 100.

[0032] The wind turbine blade anti-collision pad 100 can be fitted onto the wind turbine blade at a predetermined protection position through the through hole 3. The shape of the through hole 3 is usually adapted to the cross-sectional shape of the wind turbine blade. Optionally, please refer to [link to relevant documentation]. Figures 1 to 3 In some embodiments, the through hole 3 is a contour hole adapted to the shape of the wind turbine blade. After the uninflated or pre-inflated wind turbine blade anti-collision pad 100 is fitted onto the preset protection position of the wind turbine blade, the wind turbine blade anti-collision pad 100 is inflated through the air valve 4 until the inner wall of the through hole 3 of the wind turbine blade anti-collision pad 100 presses against the surface of the wind turbine blade. At this time, the wind turbine blade anti-collision pad 100 is in an expanded and tightened state.

[0033] The wind turbine blade anti-collision pad 100 of the present invention adopts a buffer airbag structure. This wind turbine blade anti-collision pad 100 has comprehensive technical advantages such as low manufacturing cost, light overall weight, excellent buffer and anti-collision performance, small storage volume, low transportation cost, convenient installation and disassembly operation and low labor consumption.

[0034] The wind turbine blade anti-collision pad 100 can be a one-piece structure; the wind turbine blade anti-collision pad 100 can also be a spliced ​​structure. Optionally, please refer to... Figures 1 to 3 In some embodiments, the wind turbine blade anti-collision pad 100 includes an inflatable pad 1 and a splicing connector 2. The inflatable pad 1 has a single cavity inside, and multiple inflatable pads 1 are provided. The multiple inflatable pads 1 are spliced ​​sequentially along the circumference of the through hole 3 or along the length direction of the wind turbine blade. The single cavities of the multiple inflatable pads 1 form an airbag cavity. The splicing connector 2 is provided between the multiple inflatable pads 1 so as to detachably connect the multiple inflatable pads 1 through the splicing connector 2.

[0035] Specifically, the wind turbine blade anti-collision pad 100 adopts a spliced ​​structure, which is formed by splicing multiple inflatable pads 1. The specific number of inflatable pads 1 can be set according to the actual situation. For example, there can be two, three, four, five, six or more inflatable pads 1. Similarly, the specific splicing direction of the multiple inflatable pads 1 can be set according to the actual situation. For example, the splicing direction of the multiple inflatable pads 1 can be the length direction of the wind turbine blade (i.e., the penetration direction of the through hole 3), in which case the through hole 3 passes through multiple inflatable pads 1 sequentially; the splicing direction of the multiple inflatable pads 1 can also be the circumferential direction of the through hole 3 (i.e., the circumferential direction of the wind turbine blade), in which case the multiple inflatable pads 1 surround to form the through hole 3. Optionally, please refer to Figures 1 to 3 In some embodiments, the inflatable cushion 1 is provided with two Two inflatable pads 1 are joined together in a direction perpendicular to the length of the wind turbine blade. Two grooves 11 are respectively provided on the surfaces of the two inflatable pads 1 that are close to each other, and the two grooves 11 enclose each other to form a through hole 3. The following will be an example with two inflatable pads 1 and the splicing direction of the two inflatable pads 1 being perpendicular to the length of the wind turbine blade.

[0036] Two inflatable pads 1 can be spliced ​​together. The surfaces of the two inflatable pads 1 that are close to each other are the splicing surfaces of the two inflatable pads 1. Each splicing surface of the two inflatable pads 1 has two grooves 11. When the two inflatable pads 1 are spliced ​​together, the openings of the two grooves 11 are connected to each other so that the two grooves 11 surround the through hole 3, allowing the wind turbine blade anti-collision pad 100 to be fitted into the preset protection position of the wind turbine blade through the through hole 3. Among them, any two of the splicing direction of the two inflatable pads 1, the length direction of the wind turbine blade, and the groove width direction of the groove 11 are usually perpendicular or approximately perpendicular. Hereinafter, the splicing direction of the two inflatable pads 1 is defined as the left-right direction, the length direction of the wind turbine blade is defined as the front-back direction, and the groove width direction of the groove 11 is defined as the up-down direction.

[0037] Two inflatable pads 1, when inflated and joined together, form the main body of the wind turbine blade anti-collision pad 100. The inflatable pad 1 on the left is defined as the first inflatable pad 1a, and the groove 11 on the first inflatable pad 1a is defined as the first groove 11a. The inflatable pad 1 on the right is defined as the second inflatable pad 1b, and the groove 11 on the second inflatable pad 1b is defined as the second groove 11b. The first groove 11a is formed through the right surface of the first inflatable pad 1a, and the second groove 11b is formed through the left surface of the second inflatable pad 1b. When the inflated first inflatable pad 1a and the second inflatable pad 1b are joined together, the right surface of the first inflatable pad 1a fits against the left surface of the second inflatable pad 1b, and the first groove 11a and the second groove 11b together form a through hole 3 for the wind turbine blade to pass through.

[0038] Both the first groove 11a and the second groove 11b are contoured grooves adapted to the cross-sectional shape of the wind turbine blade, allowing them to be joined to form a through hole 3 that also conforms to the cross-sectional shape of the wind turbine blade. This enables the through hole 3 to better fit the cross-sectional shape of the wind turbine blade, ensuring full contact between the wind turbine blade anti-collision pad 100 and the surface of the wind turbine blade, thus increasing the fixing effect between the wind turbine blade anti-collision pad 100 and the wind turbine blade. The following description will use the example of the first groove 11a and the second groove 11b being contoured grooves adapted to the cross-sectional shape of the wind turbine blade.

[0039] The first inflatable pad 1a and the second inflatable pad 1b, formed by inflation, can respectively wrap around the wind turbine blade through the first groove 11a and the second groove 11b. The positions where the wind turbine blade is wrapped by the first inflatable pad 1a and the second inflatable pad 1b can be set according to actual conditions. For example, the first inflatable pad 1a can wrap around the leading edge, trailing edge, windward side, leeward side, or other positions of the wind turbine blade; similarly, the second inflatable pad 1b can also wrap around the leading edge, trailing edge, windward side, leeward side, or other positions of the wind turbine blade. Optionally, please refer to... Figures 1 to 3 In some embodiments, one of the two grooves 11 is for the portion of the wind turbine blade near the trailing edge to pass through, and the other is for the portion of the wind turbine blade near the leading edge to pass through.

[0040] Specifically, the first groove 11a can be used for the portion of the wind turbine blade near the trailing edge to pass through, while the second groove 11b is used for the portion of the wind turbine blade near the leading edge to pass through; alternatively, the first groove 11a can also be used for the portion of the wind turbine blade near the leading edge to pass through, while the second groove 11b is used for the portion of the wind turbine blade near the trailing edge to pass through. The following description will use the example of the first groove 11a being used for the portion of the wind turbine blade near the trailing edge to pass through, and the second groove 11b being used for the portion of the wind turbine blade near the leading edge to pass through.

[0041] The shape of the first groove 11a is adapted to the shape of the part of the wind turbine blade near the trailing edge, and the shape of the second groove 11b is adapted to the shape of the part of the wind turbine blade near the leading edge. The leftmost position of the first groove 11a (i.e., the position of the first groove 11a corresponding to the trailing edge of the wind turbine blade) can be located above the rightmost position of the second groove 11b (i.e., the position of the second groove 11b corresponding to the leading edge of the wind turbine blade).

[0042] After the first inflatable pad 1a and the second inflatable pad 1b are respectively placed on the wind turbine blade and spliced ​​together, one or more splicing connectors 2 can be used to fix the first inflatable pad 1a and the second inflatable pad 1b together, so that the first inflatable pad 1a and the second inflatable pad 1b can adhere to and wrap around the surface of the wind turbine blade, thereby fixing the wind turbine blade anti-collision pad 100 in the preset protection position of the wind turbine blade. The splicing connector 2 can detachably connect the first inflatable pad 1a and the second inflatable pad 1b. The specific setting of the splicing connector 2 can be set according to the actual situation. For example, the splicing connector 2 can be a connecting buckle, a ratchet tightener, or other connecting structure. Optionally, please refer to Figures 1 to 3In some embodiments, the splicing connector 2 is a snap-fit. This splicing connector 2 setting method is relatively simple, and it also makes the assembly and disassembly of the first air pad 1a and the second air pad 1b easier and more convenient. The following will take the splicing connector 2 as a snap-fit ​​as an example for introduction.

[0043] The wind turbine blade anti-collision pad 100 of the present invention adopts a splicing structure, which includes two independently inflatable pads 1 and splicing connectors 2 for connecting the inflatable pads 1. In use, the two inflatable pads 1 are placed at the preset protection positions of the wind turbine blade, and the two inflatable pads 1 are fixedly connected by the splicing connectors 2, so that the two inflatable pads 1 adhere to and wrap the surface of the wind turbine blade. This wind turbine blade anti-collision pad 100 has comprehensive technical advantages such as low manufacturing cost, light overall weight, excellent buffering and anti-collision performance, small storage volume, low transportation cost, convenient installation and disassembly, and low labor consumption.

[0044] Viewed vertically, the first groove 11a is typically located in the middle of the first inflatable pad 1a; similarly, viewed vertically, the second groove 11b is typically located in the middle of the second inflatable pad 1b. When the first inflatable pad 1a and the second inflatable pad 1b are joined horizontally, the first groove 11a and the second groove 11b align to form a complete blade cross-section through hole 3, thereby better fitting the cross-sectional shape of the wind turbine blade and ensuring full contact between the wind turbine blade anti-collision pad 100 and the surface of the wind turbine blade, increasing the fixing and anti-slip effect between the wind turbine blade anti-collision pad 100 and the wind turbine blade.

[0045] Optionally, please refer to Figures 1 to 3 In some embodiments, an anti-slip layer 17 is provided on the inner wall of the through hole 3.

[0046] Specifically, an anti-slip layer 17 is provided on the inner wall of the through hole 3, that is, an anti-slip layer 17 is provided on the inner wall of the groove 11. The anti-slip layer 17 is also provided on the inner walls of the first groove 11a and the second groove 11b. The anti-slip layer 17 can be made of anti-slip materials such as CSM (chlorosulfonated polyethylene, also known as Hypalon) rubber, and can be fixed to the inner walls of the first groove 11a and the second groove 11b by means of sewing or other methods. Thus, the provision of the anti-slip layer 17 on the inner walls of the first groove 11a and the second groove 11b not only avoids damaging the surface coating of the wind turbine blades but also ensures sufficient friction between the wind turbine blade anti-collision pad 100 and the wind turbine blades.

[0047] Optionally, please refer to Figures 1 to 3In some embodiments, a boss 14 is provided on the surface of the air cushion 1 away from the groove 11, and the portion of the groove 11 near the bottom of the groove is located on the boss 14.

[0048] Specifically, the protrusion 14 on the first inflatable pad 1a is called the first protrusion 14a, and the protrusion 14 on the second inflatable pad 1b is called the second protrusion 14b. The first protrusion 14a protrudes from the left surface of the first inflatable pad 1a. When viewed vertically, the first protrusion 14a is usually located in the middle of the first inflatable pad 1a. The opening of the first groove 11a is located on the right surface of the first inflatable pad 1a, and the bottom of the first groove 11a extends to the first protrusion 14a. Similarly, the second protrusion 14b protrudes from the right surface of the second inflatable pad 1b. When viewed vertically, the second protrusion 14b is usually located in the middle of the second inflatable pad 1b. The opening of the second groove 11b is located on the left surface of the second inflatable pad 1b, and the bottom of the second groove 11b extends to the second protrusion 14b. Thus, by setting the first protrusion 14a and the second protrusion 14b on the first inflatable pad 1a and the second inflatable pad 1b respectively, the wind turbine blade anti-collision pad 100 is smaller at the top and bottom and larger in the middle, thereby reducing the overall volume of the wind turbine blade anti-collision pad 100. The following will take the case where the protrusion 14 is set on the inflatable pad 1 as an example.

[0049] The specific shape and style of the boss 14 can be set according to the actual situation. For example, the boss 14 can be square, semi-circular, trapezoidal, or other shapes. Optionally, please refer to Figures 1 to 3 In some embodiments, the size of the boss 14 in the groove width direction of the groove 11 gradually decreases from one end of the boss 14 near the groove opening of the groove 11 to the other end away from the groove opening of the groove 11.

[0050] Specifically, the dimensions of the first boss 14a gradually decrease from right to left in the vertical direction, and similarly, the dimensions of the second boss 14b gradually decrease from left to right in the vertical direction. In this way, both the first boss 14a and the second boss 14b are trapezoidal, which makes the volume of the boss 14 smaller.

[0051] The splicing connector 2 is disposed between the first inflatable pad 1a and the second inflatable pad 1b. The specific location and number of splicing connectors 2 can be set according to the actual situation. Optionally, please refer to Figures 1 to 3 In some embodiments, the splicing connector 2 includes a first splicing connector 2a. Multiple first splicing connectors 2a are provided at intervals along the groove width direction of the groove 11 at the splicing point of the two inflatable pads 1. The inflatable pad 1 is provided with a first splicing connector 2a on at least one side of the wind turbine blade in the length direction.

[0052] Specifically, the first splicing connector 2a is arranged in a strip extending in the left-right direction. The first splicing connector 2a is located at the splicing point between the first inflatable pad 1a and the second inflatable pad 1b. The left end of the first splicing connector 2a is connected to the first inflatable pad 1a, and the right end of the first splicing connector 2a is connected to the second inflatable pad 1b. Multiple first splicing connectors 2a are arranged at intervals in the vertical direction on the front and / or rear surfaces of the wind turbine blade anti-collision pad 100, and one, two, three, four, or more first splicing connectors 2a are arranged on both the upper and lower sides of the through hole 3.

[0053] Optionally, please refer to Figures 1 to 3 In some embodiments, the splicing connector 2 includes a second splicing connector 2b, and the wind turbine blade anti-collision pad 100 is wound with the second splicing connector 2b at least one end of the groove 11 in the groove width direction.

[0054] Specifically, the second splicing connector 2b is arranged in a square ring extending circumferentially along the wind turbine blade anti-collision pad 100. The second splicing connector 2b is wound around the upper and / or lower ends of the wind turbine blade anti-collision pad 100. The following description will use an example where two second splicing connectors 2b are respectively arranged at the upper and lower ends of the wind turbine blade anti-collision pad 100. For example, please refer to... Figures 1 to 3 In some embodiments, a plurality of first splicing connectors 2a, first protrusions 14a, and second protrusions 14b are located between two second splicing connectors 2b, with the uppermost first splicing connector 2a close to the upper ends of the first protrusions 14a and the second protrusions 14b, and the lowermost first splicing connector 2a close to the lower ends of the first protrusions 14a and the second protrusions 14b.

[0055] The inflatable cushion 1 can be a single-layer or multi-layer structure; optionally, please refer to [link / reference]. Figures 1 to 3 In some embodiments, the inflatable cushion 1 includes an inflatable cushion unit 12 and a stacking connector 13. Multiple inflatable cushion units 12 are stacked along the length of the wind turbine blade, and the stacking connector 13 is disposed between the multiple inflatable cushion units 12 to detachably connect the multiple inflatable cushion units 12.

[0056] Specifically, each inflatable pad 1 is composed of two, three, four, five, six, or more inflatable pad units 12 stacked together in the front-to-back direction, and each inflatable pad unit 12 is equipped with an air valve 4 to inflate and deflate the inflatable pad unit 12. In this way, the thickness of the inflatable pad 1 (i.e., the front-to-back dimension of the inflatable pad 1) can be adjusted by changing the number of layers of inflatable pad units 12 (i.e., the number of inflatable pad units 12).

[0057] After stacking multiple inflatable mattress units 12 in a front-to-back direction, the units can be fixedly connected by one or more stacking connectors 13 to form a complete inflatable mattress 1. The stacking connectors 13 allow for detachable connection of the multiple inflatable mattress units 12. The specific configuration of the stacking connectors 13 can be determined according to actual conditions; for example, the stacking connectors 13 can be connecting buckles, ratchet tighteners, or other connecting structures. Optionally, please refer to... Figures 1 to 3 In some embodiments, the stacking connector 13 is a female-female snap fastener. This method of setting up the stacking connector 13 is relatively simple, and it also makes the assembly and disassembly of the air cushion 1 easier and more convenient. The following will take the stacking connector 13 as a female-female snap fastener as an example for introduction.

[0058] The specific number of individual air cushion units 12 in each air cushion 1 can be set according to actual conditions. Optionally, please refer to [link / reference needed]. Figures 1 to 3 In some embodiments, the inflatable pad 1 includes two inflatable pad units 12.

[0059] Specifically, each inflatable pad 1 has a double-layer structure, consisting of two inflatable pad units 12 stacked front to back. The following description uses an inflatable pad 1 comprising two inflatable pad units 12 as an example. The inflatable pad unit 12 constituting the first inflatable pad 1a is the first inflatable pad unit 12a, and thus the first inflatable pad 1a is formed by stacking two first inflatable pad units 12a front to back. The inflatable pad unit 12 constituting the second inflatable pad 1b is the second inflatable pad unit 12b, and thus the second inflatable pad 1b is formed by stacking two second inflatable pad units 12b front to back.

[0060] The air valve 4 can be located at the top, bottom, left, right, or other positions of the inflatable pad 1. Optionally, please refer to [link / reference needed]. Figures 1 to 3 In some embodiments, the air valve 4 is located at one end of the inflatable pad unit 12 in the groove width direction of the groove 11.

[0061] Specifically, each inflatable pad unit 12 is equipped with an air valve 4 at its upper or lower end, for example, please refer to [link to relevant documentation]. Figures 1 to 3 In some embodiments, the air valve 4 is located at the lower end of the inflatable pad unit 12, which facilitates the inflation and deflation of the inflatable pad unit 12.

[0062] The air valve 4 can be located on the front, rear, upper, lower surface, or other positions of the inflatable pad 1. Optionally, please refer to [link / reference needed]. Figures 1 to 3 In some embodiments, the air valve 4 is located on the surface of the inflatable pad unit 12 that is perpendicular to the length direction of the wind turbine blade.

[0063] Specifically, each inflatable pad unit 12 is provided with an air valve 4 on its front or rear surface. When each inflatable pad 1 is formed by stacking two inflatable pad units 12 in the front and rear directions, the front surface of the front inflatable pad unit 12 is provided with an air valve 4, and the rear surface of the rear inflatable pad unit 12 is provided with an air valve 4, which facilitates the inflation and deflation of the two inflatable pad units 12 of the inflatable pad 1.

[0064] The stacking connectors 13 are disposed between multiple inflatable pad units 12 of the inflatable pad 1. The specific location and number of stacking connectors 13 can be set according to actual conditions. Optionally, please refer to Figures 1 to 3 In some embodiments, the stacking connector 13 includes a first stacking connector 13a, and the first stacking connector 13a is provided at one end of the air cushion 1 away from the groove 11.

[0065] Specifically, in the first inflatable pad 1a, the two ends of the first stacking connector 13a are respectively connected to the front and rear surfaces of the first inflatable pad 1a, and the middle part of the first stacking connector 13a abuts against the left side of the first inflatable pad 1a. The specific number of first stacking connectors 13a can be set according to actual conditions; for example, there can be one first stacking connector 13a. Alternatively, multiple first stacking connectors 13a can be spaced apart along the vertical direction. For example, please refer to [reference needed]. Figures 1 to 3 In some embodiments, one or more first stacked connectors 13a are provided on the left surface of the first boss 14a.

[0066] In the second inflatable pad 1b, the two ends of the first stacking connector 13a are respectively connected to the front and rear surfaces of the second inflatable pad 1b, and the middle part of the first stacking connector 13a abuts against the right side of the second inflatable pad 1b. The specific number of first stacking connectors 13a can be set according to actual conditions; for example, there can be one first stacking connector 13a. Alternatively, multiple first stacking connectors 13a can be spaced apart along the vertical direction. For example, please refer to [reference needed]. Figures 1 to 3 In some embodiments, one or more first stacked connectors 13a are provided on the right surface of the second boss 14b.

[0067] Optionally, please refer to Figures 1 to 3 In some embodiments, the stacking connector 13 includes a second stacking connector 13b, and the inflatable pad 1 is wound around at least one end of the groove 11 in the groove width direction with the second stacking connector 13b.

[0068] Specifically, the second stacking connector 13b is arranged in a square ring extending circumferentially along the air cushion 1. The second stacking connector 13b is wound around the upper and / or lower ends of the air cushion 1. The following description will use an example where two second stacking connectors 13b are respectively arranged at the upper and lower ends of the air cushion 1. For example, please refer to... Figures 1 to 3 In some embodiments, a plurality of first splicing connectors 2a, first bosses 14a, and second bosses 14b are located between two second stacked connectors 13b, and the two second stacked connectors 13b are located between two second splicing connectors 2b.

[0069] Optionally, please refer to Figures 1 to 3 In some embodiments, a splicing collision surface 15 is provided on the surface of the boss 14 away from the groove 11, and the splicing collision surface 15 is perpendicular to the splicing direction of the two inflatable pads 1.

[0070] Specifically, the left surface of the first protrusion 14a is provided with a left-facing splicing collision surface 15 of the wind turbine blade anti-collision pad 100, which is perpendicular or approximately perpendicular to the left-right direction. The right surface of the second protrusion 14b is provided with a right-facing splicing collision surface 15 of the wind turbine blade anti-collision pad 100, which is perpendicular or approximately perpendicular to the left-right direction. Thus, among the multiple adjacent left-right wind turbine blade anti-collision pads 100, the splicing collision surfaces 15 form multiple collision surfaces of the wind turbine blade anti-collision pads 100 that cooperate with each other in the left-right upward direction. The two splicing collision surfaces 15 of the wind turbine blade anti-collision pad 100 can be flush vertically; alternatively, one of the two splicing collision surfaces 15 can be positioned such that at least its upper end is above the other. For example, please refer to... Figures 1 to 3 In some embodiments, the upper end of the left-facing splicing collision surface 15 is located above the right-facing splicing collision surface 15, and the lower end of the left-facing splicing collision surface 15 is opposite to the middle of the right-facing splicing collision surface 15.

[0071] Optionally, please refer to Figures 1 to 3 In some embodiments, the inflatable pad 1 has groove width collision surfaces 16 on two opposite surfaces of the groove 11 in the groove width direction, and the groove width collision surfaces 16 are perpendicular to the groove width direction of the groove 11.

[0072] Specifically, the upper surfaces of the two inflatable cushions 1 are provided with upward-facing groove-width collision surfaces 16 of the wind turbine blade anti-collision pads 100, which are perpendicular or nearly perpendicular to the vertical direction. The lower surfaces of the two inflatable cushions 1 are provided with downward-facing groove-width collision surfaces 16 of the wind turbine blade anti-collision pads 100, which are perpendicular or nearly perpendicular to the vertical direction. Thus, between the multiple adjacent wind turbine blade anti-collision pads 100, the groove-width collision surfaces 16 form multiple collision surfaces of the wind turbine blade anti-collision pads 100 that cooperate with each other in the vertical direction.

[0073] The splicing-to-collision surface 15, the groove-width-to-collision surface 16, and the splicing surface of the inflatable cushion 1 can be thickened or have internal support members installed to ensure that the splicing-to-collision surface 15, the groove-width-to-collision surface 16, and the splicing surface of the inflatable cushion 1 remain flat planes after inflation. The splicing surface of the inflatable cushion 1 includes the front surface, the rear surface of the inflatable cushion unit 12, and the surface where the groove 11 is located.

[0074] The wind turbine blade anti-collision pad 100 adopts a spliced ​​structure. The first inflatable pad 1a and the second inflatable pad 1b are made of the same material and manufactured by the same process, and both are equipped with air valves 4. In use, the first inflatable pad 1a and the second inflatable pad 1b are connected and a certain air pressure is applied to form the pad. After inflation, the center splicing position of the first inflatable pad 1a and the second inflatable pad 1b forms a through hole 3. The anti-slip layer 17 on the surface of the through hole 3 can increase the friction coefficient between the inflatable pad 1 and the blade surface, and the inflatable pad 1 can be pressed tightly against the blade surface by air pressure.

[0075] Accordingly, the present invention also provides a method for installing a wind turbine blade anti-collision pad, which can be used to install the aforementioned wind turbine blade anti-collision pad 100 onto a wind turbine blade. Figure 4 A preferred embodiment of the installation method of the wind turbine blade anti-collision pad provided by the present invention is shown.

[0076] Please see Figure 4 In some embodiments, the control method for the blade mold includes the following steps S410 to S440.

[0077] Step S410: Pre-inflate the multiple inflatable pads 1 of the wind turbine blade anti-collision pad 100.

[0078] Specifically, the installation method of the wind turbine blade anti-collision pad 100 will be described below with reference to a specific structural arrangement of the wind turbine blade anti-collision pad 100. Two inflatable pads 1 are pre-inflated on the ground. For example, the individual inflatable pad 12 is pre-inflated first, and then multiple inflatable pads 12 are fixedly connected by stacking connectors 13 to form a complete inflatable pad 1.

[0079] Step S420: Place multiple inflatable pads 1 at the preset protection positions on the wind turbine blades.

[0080] Specifically, two inflatable pads 1 are placed in the preset protection positions of the wind turbine blades through the grooves 11.

[0081] Step S430: Inflate the multiple air pads 1 until they press against the wind turbine blades.

[0082] Specifically, after placing the two inflatable pads 1 in the preset protection positions of the wind turbine blades, the two inflatable pads 1 are inflated again through the air valve 4 until the two inflatable pads 1 press against the surface of the wind turbine blades. At this time, the wind turbine blade anti-collision pad 100 is in an expanded and tightened state.

[0083] Step S440: Securely connect multiple inflatable pads 1 using the splicing connectors 2 of the wind turbine blade anti-collision pads 100.

[0084] Specifically, the two inflatable pads 1 are fixedly connected by the splicing connector 2, and the air valve 4 is closed.

[0085] Accordingly, the present invention also provides a method for removing the wind turbine blade anti-collision pad. This method can be used to remove the wind turbine blade anti-collision pad 100 from the wind turbine blade. The method for removing the wind turbine blade anti-collision pad 100 will be described below in conjunction with a specific structural arrangement of the wind turbine blade anti-collision pad 100.

[0086] The method for removing the wind turbine blade anti-collision pad 100 may include the following steps S510 to S550.

[0087] Step S510: Disassemble the splicing connector 2.

[0088] Step S520: Deflate the multiple inflatable pads 1 through the air valve 4.

[0089] Step S530: Lay the multiple inflatable mats 1 flat on the ground and gather them together.

[0090] Step S540: Close air valve 4.

[0091] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A wind turbine blade anti-collision pad, used to be fitted onto wind turbine blades, characterized in that, The wind turbine blade impact pad is provided with a through hole for the wind turbine blade to pass through. The wind turbine blade impact pad is provided with an air bladder cavity surrounding the through hole. The wind turbine blade impact pad is provided with an air valve communicating with the air bladder cavity. The air valve is used to inflate the wind turbine blade impact pad so as to tighten the wind turbine blade through the wind turbine blade impact pad in the expanded and tightened state.

2. The wind turbine blade anti-collision pad according to claim 1, characterized in that, The wind turbine blade anti-collision pad includes: An inflatable cushion, wherein an individual cavity is provided inside the inflatable cushion, and multiple inflatable cushions are provided. The multiple inflatable cushions are sequentially spliced ​​along the circumference of the through hole or along the length of the wind turbine blade, and the individual cavities of the multiple inflatable cushions form the airbag cavity. A splicing connector is disposed between multiple inflatable pads to detachably connect the multiple inflatable pads.

3. The wind turbine blade anti-collision pad according to claim 2, characterized in that, Two inflatable pads are provided, and the two inflatable pads are spliced ​​together along a direction perpendicular to the length direction of the wind turbine blade. Two grooves are respectively provided on the surfaces of the two inflatable pads that are close to each other, and the two grooves enclose each other to form the through hole.

4. The wind turbine blade anti-collision pad according to claim 3, characterized in that, One of the two grooves is for the portion of the wind turbine blade near the trailing edge to pass through, and the other is for the portion of the wind turbine blade near the leading edge to pass through.

5. The wind turbine blade anti-collision pad according to claim 3, characterized in that, The inflatable pad includes an inflatable pad unit and a stacking connector. The inflatable pad unit has a unit cavity. Multiple inflatable pad units are stacked along the length of the wind turbine blade. The stacking connector is disposed between the multiple inflatable pad units to detachably connect the multiple inflatable pad units.

6. The wind turbine blade anti-collision pad according to claim 5, characterized in that, The inflatable pad unit is equipped with the air valve to inflate the inflatable pad unit, wherein: The air valve is located at one end of the inflatable pad unit in the groove width direction; and / or, The air valve is located on the surface of the inflatable cushion unit that is perpendicular to the length direction of the wind turbine blade.

7. The wind turbine blade anti-collision pad according to claim 5, characterized in that, The stacking connector includes a first stacking connector, wherein the first stacking connector is disposed at one end of the inflatable pad away from the groove opening; and / or, The stacking connector includes a second stacking connector, and the inflatable pad is wound around at least one end of the groove in the groove width direction with the second stacking connector.

8. The wind turbine blade anti-collision pad according to claim 3, characterized in that, The splicing connector includes a first splicing connector, and multiple first splicing connectors are spaced apart at the splicing point of the two inflatable pads along the groove width direction. The inflatable pad has a first splicing connector on at least one side of the wind turbine blade along its length direction; and / or, The splicing connector includes a second splicing connector, and the wind turbine blade anti-collision pad is wound around at least one end of the groove in the groove width direction with the second splicing connector.

9. The wind turbine blade anti-collision pad according to claim 3, characterized in that, The surface of the inflatable pad away from the groove opening has a raised platform, and the portion of the groove near the bottom of the groove is located on the raised platform.

10. The wind turbine blade anti-collision pad according to claim 9, characterized in that, The surface of the protrusion away from the groove opening is provided with a splicing collision surface, which is perpendicular to the splicing direction of the two inflatable pads; and / or, From the end of the boss near the opening of the groove to the end away from the opening of the groove, the size of the boss gradually decreases in the groove width direction.

11. The wind turbine blade anti-collision pad according to claim 3, characterized in that, The inflatable pad has groove-width collision surfaces on two opposite surfaces of the groove, and the groove-width collision surfaces are perpendicular to the groove width direction.

12. The wind turbine blade anti-collision pad according to claim 1, characterized in that, An anti-slip layer is provided on the inner wall of the through hole; and / or, the through hole is a contour hole adapted to the shape of the wind turbine blade.

13. A method for installing a wind turbine blade anti-collision pad as described in any one of claims 2-11, characterized in that, include: The multiple air pads of the wind turbine blade anti-collision pad are pre-inflated; Multiple inflatable pads are placed at predetermined protective positions on the wind turbine blades; Then inflate the multiple air pads until they press firmly against the wind turbine blades; Multiple inflatable pads are fixedly connected by splicing connectors for the wind turbine blade anti-collision pads.

Images