Vortex-induced vibration restraining assembly of wind power generation blade and disassembling and assembling method of vortex-induced vibration restraining assembly

Abstract

The invention relates to a vibration suppression structure of a wind power generation blade, in particular to a vortex-induced vibration suppression assembly of the wind power generation blade and a dismounting and mounting method of the vortex-induced vibration suppression assembly. The assemblies are arranged on the blade tip portions of the wind power generation blades in a sleeving mode and arranged in the length direction of the wind power generation blades at intervals, and the assemblies form a ring in a detachable end connection mode. The protection block comprises a front edge protection block arranged at the front edge of the wind power generation blade and a rear edge protection block arranged at the rear edge; the turbulent flow block is arranged between the protection blocks at the front edge and the rear edge of the wind power generation blade, and the turbulent flow block is obliquely arranged; the wind power generation blades are sleeved with the connecting belts, and the protection blocks and the turbulent flow blocks are connected to the connecting belts. And the dismounting rope is connected with each rear edge protection block. Compared with the prior art, the defects that in the prior art, the structural design is complex, and disassembly and assembly are inconvenient are overcome, and the beneficial effects of being simple in structure and convenient to disassemble and assemble are achieved through the scheme.

Description

Technical Field

[0001] The invention relates to a vibration suppression structure of a wind power generation blade, and in particular to a component for suppressing vortex-induced vibration of a wind power generation blade and a disassembly and assembly method thereof. Background Art

[0002] Wind power generation is a clean energy source that captures the kinetic energy of wind and converts it into electrical energy through a certain mechanical structure.

[0003] Wind turbines are one of the important equipment for wind power generation. They are mainly used to capture the kinetic energy of wind and convert it into electrical energy through a certain mechanical structure. The blades of wind turbines are one of the important components of wind turbines. When the wind acts on the blades, the blades drive the rotor inside the generator to rotate through the hub to achieve the power generation requirements of the wind turbine. However, during the period from leaving the factory to being connected to the grid, the blades will be affected by the wind and vortex-induced vibration will occur. Long-term continuous vortex-induced vibration can easily cause damage to the blades, and even lead to blade breakage and tower overturning.

[0004] Vortex-induced vibration refers to the phenomenon that when the wind vortex field acts on the wind rotor blades, new vortices are generated due to the movement of the wind rotor blades, causing the vortices to interact with the vortices already existing in the vortex field, thereby generating vibrations. This vibration usually occurs in the high-speed area of ​​the wind vortex field and at specific locations of the wind rotor blades.

[0005] In order to reduce the impact of vortex-induced vibration on wind turbines, the following measures can usually be taken: Design optimization: Reduce the occurrence of vortex-induced vibration by optimizing the shape and design of the wind rotor blades. For example, change the cross-sectional shape of the blades, increase the stiffness of the blades, etc. Increase stiffness: Strengthen the structural stiffness of the unit, reduce the deformation of the unit, and thus reduce the amplitude and frequency of vortex-induced vibration. Install spoiler devices: Install spoiler strips and other devices on the tower or blades to disrupt the trajectory of the wind so that it cannot form a vortex with a stable frequency, thereby avoiding the occurrence of vortex-induced vibration. Use dampers: Dampers can provide resistance to movement and dissipate movement energy, thereby suppressing the response amplitude of vortex-induced vibration. Adjust operating parameters: By adjusting operating parameters such as the blade angle and speed, the vortex ratio is changed to reduce the probability of vortex-induced vibration.

[0006] Among them, one of the common and commonly used methods is to install a spoiler. At present, in the prior art, the vibration suppression device is arranged in a spiral winding along the axial direction of the blade, and its corresponding spoiler is also arranged on the blade in a spiral form through a carrier. However, the structure given by the prior art is relatively complex, and it requires a variety of parts to cooperate with each other to complete the winding on the blade; at the same time, the spiral winding has high precision requirements for on-site implementation, and it is difficult to achieve a good vibration suppression effect without the auxiliary assembly of external equipment.

[0007] Therefore, it is necessary to propose a vibration suppression structure which has a simpler structure, is more convenient to assemble and disassemble, and has a good vibration suppression effect. Summary of the invention

[0008] The purpose of the present invention is to solve at least one of the above problems and provide a component for suppressing vortex-induced vibration of wind turbine blades and a method for disassembly and assembly, so as to address the shortcomings of complex structural design and inconvenient disassembly and assembly in the prior art. The present invention achieves the advantages of simple structure and easy disassembly and assembly.

[0009] The purpose of the present invention is achieved through the following technical solutions:

[0010] The first aspect of the present invention discloses a component for suppressing vortex-induced vibration of a wind power generation blade, comprising a protection block, a spoiler block and a connection belt;

[0011] The components are sleeved on the tip of the wind power blade, and the components are arranged at intervals along the length direction of the wind power blade. The components are connected in a ring in a detachable manner.

[0012] The protection block comprises a leading edge protection block arranged at the leading edge of the wind turbine blade and a trailing edge protection block arranged at the trailing edge;

[0013] The spoiler block is arranged between the protection blocks located at the leading edge and the trailing edge of the wind turbine blade, and the spoiler block is arranged obliquely;

[0014] The connecting belt is sleeved on the wind turbine blade, and the protection block and spoiler block are connected to the connecting belt;

[0015] The disassembly rope is used to connect various components with the wind turbine blade. One end of the disassembly rope is connected to the root of the wind turbine blade, passes through the blade root rain shield ring and is connected to the inside of the cabin for fixation. After connecting each trailing edge protection block in sequence in the extension direction, the other end is connected to the trailing edge protection block mounted on the end of the wind turbine blade.

[0016] Preferably, the trailing edge protection block is composed of a pair of sub-protection blocks connected in a detachable manner, and the disassembly rope includes a main disassembly rope and an auxiliary disassembly rope located on both sides of the trailing edge protection block, and the main disassembly rope and the auxiliary disassembly rope are respectively connected to the outer side of the sub-protection block on the same side.

[0017] More preferably, the detachable connection includes one or a combination of connection by buckle and connection by Velcro.

[0018] Preferably, the wind turbine blade is a serrated trailing edge blade.

[0019] Preferably, the wind turbine blade is provided with spoilers on both the windward side and the leeward side.

[0020] Preferably, two ends of the spoiler are respectively connected to connecting strips of adjacent components.

[0021] Preferably, the spoilers are cross-arranged on the windward side and the leeward side of the wind turbine blade.

[0022] Preferably, the protection block is an EVA foam block, and the connecting belt is a binding belt.

[0023] Preferably, the spoiler is a prismatic structure.

[0024] More preferably, the spoiler is a triangular prism structure.

[0025] Preferably, the disassembly rope is connected to the blade root section of the wind turbine blade through the rainproof ring through-hole.

[0026] Preferably, the component further comprises an anti-fall rope and a disassembly rope, and the anti-fall rope is connected to the connection belt of the component farthest from the tip of the wind turbine blade.

[0027] The second aspect of the present invention discloses a method for disassembling and assembling a component for suppressing vortex-induced vibration of a wind turbine blade as described above, comprising:

[0028] Assembly: The connecting belts with the leading edge protection blocks and spoiler blocks connected in series are sequentially installed on the tip of the wind turbine blade in a chord direction, and then the ring connection of the components is completed through the connection of the trailing edge protection blocks. The disassembly rope is led from the blade root to the trailing edge protection blocks of each component and connected in series on the disassembly rope to complete the installation of the components;

[0029] Disassembly: Rotate the wind turbine blade to an angle of 0-90° with the tower of the wind turbine, release the connection of the disassembly rope at the root of the wind turbine blade, and disconnect the detachable connection of each component at the loop connection of the trailing edge protection block by pulling the disassembly rope to complete the damage-free disassembly of each component on the wind turbine blade.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This solution has a simple structure, is easy to assemble and disassemble (especially easy to disassemble in the air after the machine is connected to the grid), and has low alignment accuracy requirements (only linear arrangement is required), which is very beneficial for actual production and transportation. In addition, the area of ​​direct contact between the assembly and the blade surface is small, which has little impact on the blade paint and coating, so the blade protected by this assembly will basically not affect normal use.

[0032] Specific:

[0033] 1. This solution can be used to solve the problem of blade vortex-induced vibration in multiple scenarios including blade storage, transportation, hoisting, hanging and before grid connection;

[0034] 2. After the blade is hoisted, the solution is more operable for disassembling the kit in the air. The dual fixing method of fixing buttons and Velcro not only ensures the reliability of the installation and connection of the component, but also optimizes the operability of disassembly before grid connection. All component connections on the blade can be disconnected and disassembled by pulling and lifting the disassembly rope;

[0035] 3. This solution is more user-friendly for the disassembly of the serrated trailing edge blade after hoisting. The disassembly is easier and will not damage the serrated trailing edge accessories. The main disassembly rope and the auxiliary disassembly rope on both sides of the trailing edge protection block simultaneously apply force to the outside, which can avoid the situation where the serrated teeth are compressed and skewed due to unilateral force.

[0036] 4. The spoiler blocks that run through the front and rear edges of the blades and form a symmetrical X-shaped design can provide a better anti-vibration effect.

[0037] Therefore, this solution has the advantages of simple structure, low precision requirement, convenient construction and good vibration suppression effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the structure of a component for suppressing vortex-induced vibration of a wind turbine blade;

[0039] Figure 2 The three views of the trailing edge protection block of the trailing edge of a wind turbine blade are shown in FIG. (a) is a front view, (b) is a side view, and (c) is a top view.

[0040] Figure 3 A schematic diagram of the structure of a leading edge protection block of a wind turbine blade leading edge;

[0041] Figure 4 A schematic diagram of the assembly structure formed by the protection block and the connection belt in the wind turbine blade;

[0042] Figure 5 It is a schematic diagram of the structure of the disassembly rope and the trailing edge protection block in the wind turbine blade;

[0043] In the figure: 1- wind turbine blade; 2- protection block; 21- trailing edge protection block; 211- trailing edge perforation; 22- leading edge protection block; 221- leading edge perforation; 3- spoiler block; 4- connecting belt; 41- adjusting buckle; 5- disassembly rope; 51- main disassembly rope; 52- auxiliary disassembly rope; 53- clamp; 6- anti-fall rope. DETAILED DESCRIPTION

[0044] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] A component for suppressing vortex-induced vibration of a wind turbine blade 1, such as Figure 1-5 , including a protection block 2, a spoiler block 3 and a connecting belt 4;

[0047] The components are sleeved on the tip of the wind power blade 1, and the components are arranged at intervals along the length direction of the wind power blade 1. The components are connected in a ring in a detachable manner.

[0048] The protection block 2 comprises a leading edge protection block 22 arranged at the leading edge of the wind turbine blade 1 and a trailing edge protection block 21 arranged at the trailing edge;

[0049] The spoiler block 3 is arranged between the protection block 2 located at the leading edge and the trailing edge of the wind turbine blade 1, and the spoiler block 3 is arranged obliquely;

[0050] The connecting belt 4 is sleeved on the wind turbine blade 1, and the protection block 2 and the spoiler block 3 are connected to the connecting belt 4;

[0051] The disassembly rope 5 is used to connect each component with the wind turbine blade 1. One end of the disassembly rope 5 is connected to the blade root of the wind turbine blade 1. After connecting each trailing edge protection block 21 in sequence, the other end is connected to the trailing edge protection block 21 sleeved on the end of the wind turbine blade 1.

[0052] More specifically, in this embodiment:

[0053] By simulating the vortex-induced vibration of the wind turbine blade 1, it can be found that the vortex shedding that causes the vibration of the wind turbine blade 1 mainly occurs on both sides of its leading edge and trailing edge. Therefore, based on this result, the component proposed in this scheme arranges spoiler blocks 3 on both sides of the leading edge and trailing edge of the wind turbine blade 1, thereby effectively suppressing the vortex-induced vibration of the wind turbine blade 1.

[0054] like Figure 1-5 As shown, the assembly is composed of a protection block 2, a spoiler block 3 and a connecting belt 4, and the assemblies are connected in series through a disassembly rope 5 (located at the position of the trailing edge protection block 21). The assemblies are arranged at intervals at the tip of the wind power generation blade 1, and are connected to the root of the wind power generation blade 1 through the disassembly rope 5. This assembly is particularly suitable for use on serrated trailing edge blades.

[0055] In this embodiment, there are 8 groups of components, which are arranged at 0-30m from the tip of the wind turbine blade 1 along the length direction, with one group arranged at intervals of 3m. Each group of components includes a connecting belt 4 for connecting the protection block 2 and the spoiler block 3 in series, a protection block 2 arranged at the leading edge and the trailing edge of the wind turbine blade 1, and a spoiler block 3 arranged at the windward side and the leeward side of the wind turbine blade 1. The protection block 2 is divided into a leading edge protection block 22 and a trailing edge protection block 21 according to different installation positions, and is installed in a chordal direction; wherein the leading edge protection block 22 is a flat plate or an arc-shaped structure (with a leading edge through hole 221 provided thereon for passing the connecting belt 4), which is arranged to fit or partially fit the leading edge of the wind turbine blade 1, such as Figure 3 The trailing edge protection block 21 is as follows Figure 2 As shown in (a)-(c), it is composed of two parts of sub-protection blocks that are detachably connected. Specifically, the two sub-protection blocks are both L-shaped, and there is a protrusion on the back of the L-shape, respectively located at the top and the middle position. The two parts of the trailing edge protection block 21 can be connected as a whole by arranging Velcro and fixing buttons on the top protrusion, so that the entire component can be connected in a ring through the trailing edge protection block 21; on the sub-protection block of the L-shaped structure on one side, near the free ends at both ends, trailing edge through-holes 211 for passing the connecting belt 4 are respectively opened, so that the connecting belt 4 can connect the sub-protection blocks on both sides in series. After the two parts of the sub-protection blocks are connected, the single component is connected in a ring, and the gap at the middle bottom of the trailing edge protection block 21 is the part that fits the wind turbine blade 1, which can protect the trailing edge and the surface and structure on both sides of the wind turbine blade 1, especially for the protection of blades with a serrated structure. Since the size of the wind turbine blade 1 is relatively large, it is usually bound together with two parallel connecting straps 4 as a group; therefore, the slots / holes on the protection block 2 are usually arranged in pairs. In addition, the thickness of the protrusion in the middle of the back of the L-shaped structure in the trailing edge protection block 21 is adjusted according to the different binding positions of the protection block 2, such as: when it is 7-19m away from the blade tip, its width is 15mm; when it is 22-25m away from the blade tip, its width is 20mm (consistent with the width of the protrusion on the upper back of the L-shaped structure), so that it can adapt to the thickness change of the wind turbine blade 1. The protection block 2 uses an EVA foam block, which can protect the paint appearance and structure of the wind turbine blade 1 at the same time.

[0056] Spoiler block 3, as Figure 1As shown, it is a triangular prism structure, which is arranged on the windward side and the leeward side of the wind turbine blade 1, between the leading edge protection block 22 and the trailing edge protection block 21, and obliquely across the connecting belts 4 of two adjacent components, and it is also protruding from the wind turbine blade 1. Specifically, 4 spoiler blocks 3 are arranged on both sides of the wind turbine blade 1, for a total of 8 blocks. Taking 8 groups of components as an example, the spoiler blocks 3 on one side are obliquely hung on the connecting belts 4 of the 1-2, 3-4, 5-6, and 7-8 groups of components; the parts of the spoiler blocks 3 near the two ends are respectively connected to the connecting belts 4 near the leading edge protection block 22 and the connecting belts 4 near the trailing edge protection block 21, and the spoiler blocks 3 located on the windward side and the leeward side of the wind turbine blade 1 are inclined in opposite directions, correspondingly forming an X-shaped cross structure.

[0057] The connecting belt 4 passes through the protection block 2 and the spoiler block 3 in sequence and is tightened in a loop between the two sub-protection blocks (the length of the connecting belt 4 can be tightened and adjusted by using the adjusting buckle 41) to ensure that the assembly can maintain a reliable connection without external force after being sleeved on the wind turbine blade 1. The connecting belt 4 is a binding belt, which can securely bind the entire assembly to the wind turbine blade 1.

[0058] The disassembly rope 5 is a connecting rope, which is composed of a main disassembly rope 51 and an auxiliary disassembly rope 52. Figure 5 The main disassembly rope 51 and the auxiliary disassembly rope 52 are respectively arranged on both sides of the trailing edge protection block 21 (the pressure side (PS) and the suction side (SS) of the wind turbine blade 1), and the main disassembly rope 51 and the auxiliary disassembly rope 52 are respectively connected to the sub-protection block on the same side. Furthermore, the rear edge protection block 21 can be pulled and lifted to release the connection between the fixing button and the Velcro to achieve the removal of the assembly (the two sub-protection blocks are separated from the PS and SS sides of the wind turbine blade 1 respectively). The end of the disassembly rope 5 away from the blade tip is fixed on the blade root section of the wind turbine blade 1 through the rain shield ring through-hole. In particular, the main disassembly rope 51 passes through the clamping rings 53 provided on the side surfaces of the side sub-protection blocks corresponding to the trailing edge protection block 21 in turn, and then extends and connects to the surface of the trailing edge protection block 21 and the wind turbine blade 1, and the auxiliary disassembly rope 52 is directly connected to the clamping rings 53 provided on the outer protruding surfaces of the side sub-protection blocks corresponding to each trailing edge protection block 21. In this way, during disassembly, the main disassembly rope 51 is the main force, and the force applied to the auxiliary disassembly rope 52 can be regarded as a balance to the main disassembly rope 51, thereby protecting the wind turbine blade 1 sandwiched between the trailing edge protection blocks 21 from being basically or completely subjected to lateral force, thereby avoiding damage to the structure or surface of the wind turbine blade 1; especially for the serrated structure on the serrated trailing edge blade, the serrated structure can be effectively avoided from being bent and damaged.

[0059] When installing the component, first, the spoiler block 3 and the protection block 2 are inserted into the corresponding connecting belt 4 in sequence, and the connecting belt 4 is transferred to the target installation position on the wind turbine blade 1, and then it is installed in a chordal form. Subsequently, the two sub-protection blocks of the trailing edge protection block 21 are connected to realize the ring connection of the component and the component is firmly assembled on the wind turbine blade 1 by tightening the connecting belt 4; the main disassembly rope 51 and the auxiliary disassembly rope 52 are respectively led out from the blade roots on both sides of the wind turbine blade 1, and are respectively connected to the outer side of the trailing edge protection block 21 of each component in sequence. After the disassembly rope 5 is connected to the farthest trailing edge protection block 21, the components are connected in series on the disassembly rope 5, so that the installation of each component and the disassembly rope 5 on the wind turbine blade 1 is realized.

[0060] When disassembling the component, the wind turbine blade 1 is turned to form an angle of 0-90° with the tower of the wind turbine. If it is a serrated blade, the serrations are directed toward the ground. After one end of the disassembly rope 5 is disassembled from the cabin, the disassembly rope is slowly released from the opening of the rain shield ring. By pulling and lifting the main disassembly rope 51 and the auxiliary disassembly rope 52 together, force is applied to the trailing edge protection blocks 21 of each component on both sides, so that each trailing edge protection block 21 is disconnected at the connection between the sub-protection blocks, and the component can be disassembled simply and quickly without damage.

[0061] In addition, in order to prevent the components from falling directly and causing harm during disassembly, at least one anti-fall rope 6 is further connected to the connecting belt 4 of at least the innermost / outermost (away from / close to the tip of the wind turbine blade 1) component. The other end of the anti-fall rope 6 can be connected to the root of the wind turbine blade 1 (for example, it can be connected to the perforation position of the rain shield ring in the same way as the disassembly rope 5). Therefore, after the wind turbine blade 1 is installed and the components are disassembled, the components will not fall directly from a high altitude, thereby avoiding the occurrence of safety accidents.

[0062] The application of the components of this solution effectively solves the problem of vortex-induced vibration of blades during storage, transportation, hoisting, hanging and before grid connection. It: 1) can be used in multiple scenarios of blade storage, transportation, hoisting and before grid connection; 2) after the blade is hoisted, the solution is more operable for disassembly of components in the air, and the dual fixing method of fixing buttons and Velcro not only ensures the reliability of the installation of the anti-vortex machine kit, but also optimizes the operability of disassembly before grid connection; 3) This solution is more friendly for the disassembly of serrated trailing edge blades after hoisting, and the disassembly is easier and will not damage the serrated trailing edge accessories; 4) The spoiler block 3 that runs through the front and rear edges of the blade and symmetrically forms an X-shaped design can play a better anti-vibration effect. This structure is easier to disassemble after the installation of the serrated trailing edge blade; the contact area with the blade surface is small, and the impact on the paint surface is small.

[0063] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A component for suppressing vortex-induced vibration of a wind turbine blade, characterized in that: It comprises a protection block (2), a spoiler block (3) and a connecting belt (4); The components are sleeved on the tip of the wind power generation blade (1), and the components are arranged at intervals along the length direction of the wind power generation blade (1), and the components are connected in a ring by a detachable connection method; The protection block (2) comprises a leading edge protection block (22) arranged at the leading edge of the wind power generation blade (1) and a trailing edge protection block (21) at the trailing edge; The spoiler block (3) is arranged between the protection blocks (2) located at the leading edge and the trailing edge of the wind turbine blade (1), and the spoiler block (3) is arranged in an inclined manner; The connecting belt (4) is sleeved on the wind power generation blade (1), and the protection block (2) and the spoiler block (3) are connected to the connecting belt (4); The disassembly rope (5) is used to connect each component with the wind power generation blade (1); one end of the disassembly rope (5) is connected to the blade root of the wind power generation blade (1); after being connected to each trailing edge protection block (21) in sequence, the other end is connected to the trailing edge protection block (21) sleeved on the end of the wind power generation blade (1).

2. A component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The rear edge protection block (21) is composed of a pair of sub-protection blocks connected in a detachable manner, and the disassembly rope (5) comprises a main disassembly rope (51) and a secondary disassembly rope (52) located on both sides of the rear edge protection block (21), and the main disassembly rope (51) and the secondary disassembly rope (52) are respectively connected to the outer side of the sub-protection block on the same side.

3. A component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The wind power generation blade (1) is provided with spoiler blocks (3) on both the windward side and the leeward side.

4. A component for suppressing vortex-induced vibration of a wind turbine blade according to claim 3, characterized in that: The two ends of the spoiler block (3) are respectively connected to the connecting strips (4) of adjacent components.

5. The component for suppressing vortex-induced vibration of a wind turbine blade according to claim 3, characterized in that: The spoiler blocks (3) are arranged crosswise on the windward side and the leeward side of the wind turbine blade (1).

6. A component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The protection block (2) is an EVA foam block, and the connection belt (4) is a binding belt.

7. A component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The spoiler (3) is a prism structure.

8. The component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The disassembly rope (5) is connected to the blade root section of the wind power generation blade (1) through the rain shield ring through-hole.

9. The component for suppressing vortex-induced vibration of a wind turbine blade according to claim 1, characterized in that: The component also includes an anti-fall rope (6), and the anti-fall rope (6) is connected to the connecting belt (4) of the component farthest from the tip of the wind power generation blade (1).

10. A method for disassembling and assembling a component for suppressing vortex-induced vibration of a wind turbine blade according to any one of claims 1 to 9, characterized in that: include: Assembly: sequentially installing the connecting belts (4) connected in series with the leading edge protection blocks (22) and the spoiler blocks (3) on the blade tip of the wind turbine blade (1) in a chordal direction, and then completing the ring connection of the components through the connection of the trailing edge protection blocks (21), and guiding the disassembly rope (5) from the blade root to connect the trailing edge protection blocks (21) of each component, so that each component is connected in series on the disassembly rope (5), and the assembly of the components is completed; Disassembly: The wind turbine blade (1) is rotated to form an angle of 0-90° with the tower of the wind turbine generator, the connection of the disassembly rope (5) at the root of the wind turbine blade (1) is released, and the disassembly rope (5) is pulled to disconnect the detachable connection of each component at the loop connection of the trailing edge protection block (21), thereby completing the damage-free disassembly of each component on the wind turbine blade (1).

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