Disassembling and assembling device for turbulator of offshore wind turbine tower drum

Abstract

The utility model relates to a dismounting and mounting device for a spoiler strip of an offshore wind turbine tower drum, the dismounting and mounting device comprises a first tightening belt, a second tightening belt, a hanging piece, the spoiler strip and a nylon rope, the first tightening belt and the second tightening belt respectively comprise a belt body and a hook-and-loop fastener, the hook surface of the hook-and-loop fastener is arranged on one side of the belt body, and the loop surface of the hook-and-loop fastener is arranged on the other side of the belt body; the first tightening belt surrounds the side, close to the upper flange end face, of the tower, and the second tightening belt surrounds the side, close to the lower flange end face, of the tower. The plurality of hanging pieces are respectively arranged on the first tightening belt and the second tightening belt at intervals; the turbulent flow strip is arranged on the outer wall of the tower drum in a surrounding mode, one end of the turbulent flow strip is connected with the hanging piece on the first tightening belt, and the other end of the turbulent flow strip is connected with the hanging piece on the second tightening belt. One end of the nylon rope is connected with the part, provided with the hook-and-loop fastener, of the belt body, the other end of the nylon rope extends to a preset position on the lower side of the tower barrel, and the nylon rope can enable the hook face and the loop face of the hook-and-loop fastener to be separated under the action of external force.

Description

Technical Field

[0001] This application relates to the field of offshore wind power construction technology, specifically to a device for disassembling and assembling spoilers on offshore wind turbine towers. Background Technology

[0002] In offshore wind power projects, from the initial tower hoisting to the completion of blade installation, the tower, due to its high flexibility and low natural frequency, is highly susceptible to vortex-induced vibration under airflow, thus affecting structural safety and construction progress. To reduce the risk of vortex-induced vibration, spoilers are typically installed on the upper surface of the tower to disrupt airflow and suppress it. However, the complex and variable offshore construction environment presents significant challenges to the installation and removal of spoilers. Especially after the tower is hoisted, the increased structural height makes it difficult for personnel to reach the operating position, resulting in extremely high risks during removal and limiting construction efficiency. Utility Model Content

[0003] The first aspect of this application provides a device for disassembling and assembling spoilers for offshore wind turbine towers. This device simplifies the installation and disassembly process of the spoilers and avoids safety hazards for workers operating at heights.

[0004] The disassembly and assembly device for the spoiler strip of the offshore wind turbine tower provided in the first aspect of this application includes: a first tightening belt and a second tightening belt. The first tightening belt and the second tightening belt each include a belt body and a Velcro fastener. The hook side of the Velcro fastener is disposed on one side of the belt body along the length direction, and the rough side of the Velcro fastener is disposed on the other side of the belt body along the length direction. The first tightening belt is wrapped around the side of the tower near the upper flange end face, and the second tightening belt is wrapped around the side of the tower near the lower flange end face.

[0005] Multiple hooks are provided, and the multiple hooks are respectively and spaced apart on the first tightening belt and the second tightening belt;

[0006] Multiple baffle strips are arranged around the outer wall of the tower, with one end of each baffle strip connected to the hook on the first tightening belt and the other end connected to the hook on the second tightening belt.

[0007] A nylon rope, one end of which is connected to the portion of the belt body with Velcro, and the other end extends to a predetermined position on the lower side of the tower. The nylon rope can cause the hook side of the Velcro to detach from the loop side under the action of external force.

[0008] In addition, the disassembly and assembly device for the offshore wind turbine tower spoiler provided in this application also has the following additional technical features:

[0009] In one alternative embodiment, the first tightening belt and the second tightening belt further include a tightening head and a tightening head pad. The tightening head is disposed on the belt body and can adjust the length of the belt body so that the belt body can adapt to towers of different pipe diameters. The tightening head pad is disposed between the tightening head and the wall of the tower.

[0010] In one alternative embodiment, the distance between the first tightening band and the upper flange end face of the tower is 250mm, and the distance between the second tightening band and the lower flange end face of the tower is 120-1000mm. After installation, the tightening head and the Velcro are at the same horizontal height on the tower.

[0011] In one alternative embodiment, the number of hooks provided on the first tightening belt and the second tightening belt is greater than the number of deflector strips. The two ends of the deflector strip are provided with hooks and are respectively connected to the hooks of the first tightening belt and the second tightening belt. The number of times the deflector strips wrap around the outer wall of the tower is not less than 2.

[0012] In one alternative embodiment, a connecting sleeve is provided at the end of the belt body, and the nylon rope is connected to the belt body through the connecting sleeve; the number of deflector strips provided on the tower is 3, and the circumferential angle between two adjacent deflector strips is 120°.

[0013] The second aspect of this application provides a disassembly and assembly method for disassembling and assembling the disassembly and assembly device for the offshore wind turbine tower spoiler provided in the first aspect, the disassembly and assembly method comprising the following steps:

[0014] 1) Install the first tightening belt at a preset position from the upper flange end face of the tower, and install the second tightening belt at a preset position from the lower flange of the tower. Then, pre-tighten the first tightening belt and the second tightening belt respectively through the tightening head. When tightening, place the tightening head gasket under the tightening head. After pre-tightening, the tightening head and the Velcro on the tower should be at the same horizontal height.

[0015] 2) Tie nylon ropes to the preset positions of the first tightening belt and the second tightening belt, and then evenly suspend three sets of deflector strips on the hook of the first tightening belt of each tower section. Use a crane to rotate the tower and evenly wrap the deflector strips around the tower. Each set of deflector strips should wrap around the tower at least 2 times. After wrapping, the deflector strips are hooked and fixed to the hook of the second tightening belt.

[0016] 3) During the hoisting of the tower, a designated person must release the rope to keep the nylon rope attached to the tightening strap or Velcro in a slack state at all times. After the tower is hoisted into place and the bolts are pre-tightened, the nylon rope is fixed at the bottom of the tower.

[0017] 4) After the wind turbine is hoisted, personnel and machinery at the bottom of the tower are evacuated to a safe area. Then, the first and second tensioning belts are removed using the corresponding nylon ropes, thereby removing the deflector strips.

[0018] In one alternative embodiment, in step 1), the distance between the first tightening band and the upper flange end face of the tower is 250 mm, and the distance between the second tightening band and the lower flange end face of the tower is 120-1000 mm.

[0019] In step 2), after the nylon rope is tied, it needs to be bent and pressed under the tightening strap before tightening the strap, and a test is conducted on the ground to confirm that the nylon rope can pull the Velcro.

[0020] In one alternative, in step 4), the dismantling sequence is from bottom to top. During dismantling, the nylon rope is pulled forcefully until the Velcro on the corresponding tightening strap is torn open, and the deflector strip will fall off naturally. Finally, the relevant materials are sorted and recycled for use by the next wind turbine.

[0021] The beneficial effects of this application are as follows:

[0022] The device for installing and removing the spoiler strips of the offshore wind turbine tower in this application uses a first and second tightening strap equipped with Velcro to install and remove the spoiler strips. In particular, during disassembly, the Velcro can be pulled by a nylon rope to separate the hook side from the loop side, thereby removing the tightening strap and the spoiler strip. This remote disassembly method can effectively avoid potential safety hazards for workers when working at heights, reduce the difficulty of operation, improve the efficiency of disassembly, save time and manpower, simplify the operation process, and reduce the time and investment required for manual disassembly.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0024] Figure 1 A schematic diagram of the disassembly and assembly device provided in this application in a specific embodiment;

[0025] Figure 2 A schematic diagram of the structure of the spoiler provided in this application in a specific embodiment;

[0026] Figure 3 for Figure 1 A schematic diagram of the installation structure of the disassembly and assembly device in a specific embodiment;

[0027] Figure 4 for Figure 1 A schematic diagram showing the installation of the disassembly and assembly device at the tightening head position;

[0028] Figure 5 for Figure 1 A schematic diagram of the disassembly and assembly device at the nylon rope location;

[0029] Figure 6 The diagram shows the structure of the disassembly and assembly device provided in this application in different states during construction.

[0030] Reference numerals: 1. First tightening band; 2. Second tightening band; 3. Band body; 4. Velcro; 5. Hook and loop; 6. Hanger; 7. Deflector strip; 8. Nylon rope; 9. Tightening head; 10. Tightening head gasket; 11. Connecting sleeve.

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0032] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0035] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0036] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0037] like Figure 1-6As shown, the first aspect of this application provides a device for assembling and disassembling spoilers for offshore wind turbine towers. This device mainly includes a first tightening strap 1, a second tightening strap 2, multiple hooks 6, multiple spoilers 7, and a nylon rope 8. The first tightening strap 1 and the second tightening strap 2 each include a strap body 3 and a Velcro 4. The hook side of the Velcro 4 is located on one side of the strap body 3 along its length, and the rough side of the Velcro 4 is located on the other side of the strap body 3 along its length. The Velcro 4 extends a predetermined length along the length of the strap body 3. After the two sides of the strap body 3 enclose the tower, they are bonded and mounted on the tower by the hook and rough sides of the Velcro 4. Specifically, the first tightening band 1 is wrapped around the side of the tower 5 near the upper flange end face, and the second tightening band 2 is wrapped around the side of the tower 5 near the lower flange end face; multiple hooks 6 are respectively spaced on the first tightening band 1 and the second tightening band 2; a deflector 7 is wrapped around the outer wall of the tower, and one end of the deflector 7 is connected to the hook 6 on the first tightening band 1, and the other end is connected to the hook 6 on the second tightening band 2; one end of the nylon rope 8 is connected to the part of the belt body 3 where the Velcro 4 is provided, and the other end extends to a preset position on the lower side of the tower 5, and the nylon rope 8 can cause the hook side of the Velcro 4 to separate from the napped side under the action of external force.

[0038] In this embodiment, the device for installing and removing the spoiler strip of the offshore wind turbine tower uses a first tightening strap 1 and a second tightening strap 2 equipped with Velcro 4 to install and remove the spoiler strip 7. In particular, during removal, the Velcro 4 can be pulled by the nylon rope 8 to separate the hook side from the loop side, thereby removing the tightening strap and the spoiler strip 7. This remote removal method can effectively avoid potential safety hazards for workers when working at heights, reduce the difficulty of operation, improve the efficiency of removal, save time and manpower, simplify the operation process, and reduce the time and investment required for manual removal.

[0039] like Figure 1 and Figure 4 As shown, in one specific embodiment, the first tightening belt 1 and the second tightening belt 2 further include a tightening head 9 and a tightening head gasket 10. The tightening head 9 is disposed on the belt body 3 and can adjust the length of the belt body 3 so that the belt body 3 can adapt to towers of different pipe diameters. The tightening head gasket 10 is disposed between the tightening head 9 and the wall of the tower to prevent the tightening head 9 from damaging the paint surface of the tower during the tightening process. It should be noted that the tightening head 9 can be a D-ring or an adjusting buckle, etc., as long as it can adjust the length of the corresponding tightening belt. This article does not make specific limitations on this.

[0040] like Figure 3As shown, in one specific embodiment, the distance between the first tightening band 1 and the upper flange end face of the tower cylinder 5 is 250mm, and the distance between the second tightening band 2 and the lower flange end face of the tower cylinder 5 is 120-1000mm. After installation, the tightening head 9 and the Velcro 4 are at the same horizontal height on the tower cylinder.

[0041] like Figure 1 and Figure 3 As shown, in one specific embodiment, the number of hooks 6 on the first tightening band 1 and the second tightening band 2 is greater than the number of deflector strips 7. Each end of the deflector strip 7 has hooks that connect to the hooks 6 on the first tightening band 1 and the second tightening band 2, respectively. The deflector strip 7 wraps around the outer wall of the tower at least twice, and there are three deflector strips 7 on the tower. The circumferential angle between two adjacent deflector strips 7 is 120°. For example, nine hooks 6 can be provided. The upper ends of the deflector strips 7 are evenly hung on three hooks 6 on the first tightening band 1. After the deflector strips 7 wrap around the outer wall of the tower, the lower ends of the deflector strips 7 are suspended from the nearest hook 6 on the second tightening band 2 according to their position. The additional hooks 6 increase the tolerance during connection, ensuring that the deflector strips 7 can be suspended and installed in the appropriate position.

[0042] like Figure 5 As shown, in one specific embodiment, a connecting sleeve 11 is provided at the end of the belt body 3, and the nylon rope 8 is connected to the belt body 3 through the connecting sleeve 11. The length of the nylon rope 8 is relatively long, which needs to be greater than the height of the tower, so as to be pulled when operating at the bottom of the wind turbine. One end of the nylon rope 8 is fixed to the outside of the Velcro 4. In use, part of the nylon rope 8 is inserted between the tower and the corresponding tightening belt to provide temporary fixing force and prevent the nylon rope 8 from loosening due to accidental factors, thereby preventing the deflector strip 7 from falling off.

[0043] The second aspect of this application also provides a method for disassembling and assembling the disassembly and assembly device in the first aspect embodiment. Specifically, the disassembly and assembly method can be carried out according to the following steps during construction:

[0044] 1) Install the first tightening band 1 at a distance of about 250mm from the upper flange end face of the tower, and install the second tightening band 2 at a distance of 120-1000mm from the lower flange of the tower (the specific position of the second tightening band 2 can be determined according to the actual installation of the spoiler strip 7 assembly). Then, pre-tighten the first tightening band 1 and the second tightening band 2 respectively through the tightening head 9. When tightening, a tightening head gasket 10 should be placed under the tightening head 9 to prevent damage to the paint surface of the tower. After pre-tightening, the horizontal height of the tightening head 9 and the Velcro 4 on the tower should be consistent.

[0045] 2) Tie nylon rope 8 to the preset position corresponding to the tightening strap, such as... Figure 5As shown, after bending the nylon rope 8 and pressing a section under the tightening belt, tighten the tightening belt and test it on the ground to confirm that the nylon rope 8 can pull the Velcro 4; then, evenly suspend three sets of deflector strips 7 (each set of suspension points is 120° apart) at the lower hanging point of the flange tightening belt on each section of the tower. Use a crane to rotate the tower and evenly wrap the deflector strips 7 around the tower. Each set of deflector strips 7 should be wrapped around the tower at least 2 times.

[0046] 3) During the hoisting of the tower, a designated person must release the rope to keep the nylon rope 8 tied to the tightening strap or Velcro 4 slack. After the tower is hoisted into place and the bolts are pre-tightened, the nylon rope 8 is fixed at the bottom of the tower.

[0047] 4) After the wind turbine is installed, all personnel and machinery at the bottom of the tower must be evacuated to a safe area. The dismantling sequence is from bottom to top. During dismantling, pull the nylon rope 8 forcefully until the Velcro 4 on the tightening strap is torn off, and the deflector strip 7 will fall off naturally. Finally, collect and recycle the relevant materials for use by the next wind turbine.

[0048] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for dismounting and mounting a turbulence strip of a tower of an offshore wind turbine, characterized in that, include: A first tightening band and a second tightening band, each comprising a band body and a hook and loop fastener, wherein the hook side of the hook and loop fastener is disposed on one side of the band body along the length direction, and the loop side of the hook and loop fastener is disposed on the other side of the band body along the length direction; the first tightening band is wrapped around the side of the tower near the upper flange end face, and the second tightening band is wrapped around the side of the tower near the lower flange end face. Multiple hooks are provided, and the multiple hooks are respectively and spaced apart on the first tightening belt and the second tightening belt; Multiple baffle strips are arranged around the outer wall of the tower, with one end of each baffle strip connected to the hook on the first tightening belt and the other end connected to the hook on the second tightening belt. A nylon rope, one end of which is connected to the portion of the belt body with Velcro, and the other end extends to a predetermined position on the lower side of the tower. The nylon rope can cause the hook side of the Velcro to detach from the loop side under the action of external force.

2. A dismounting device for offshore wind turbine tower fairing strips according to claim 1, characterized in that The first tightening belt and the second tightening belt further include a tightening head and a tightening head gasket. The tightening head is disposed on the belt body and can adjust the length of the belt body so that the belt body can adapt to towers with different pipe diameters. The tightening head gasket is disposed between the tightening head and the wall of the tower.

3. A dismounting device for offshore windmill tower fairing strips according to claim 2, characterized in that, The distance between the first tightening band and the upper flange end face of the tower is 250mm, and the distance between the second tightening band and the lower flange end face of the tower is 120-1000mm. After installation, the tightening head and the Velcro are at the same horizontal height on the tower.

4. A dismounting device of an offshore windmill tower fairing strip according to any one of claims 1-3, characterized in that, The number of hooks provided on the first tightening belt and the second tightening belt is greater than the number of the deflector strips. The two ends of the deflector strip are provided with hooks and are connected to the hooks of the first tightening belt and the second tightening belt respectively. The number of times the deflector strips wrap around the outer wall of the tower is not less than 2.

5. A dismounting device for offshore windmill tower fairing strips according to claim 4, characterized in that, The end of the belt is provided with a connecting sleeve, and the nylon rope is connected to the belt through the connecting sleeve; the number of the deflector strips provided on the tower is 3, and the circumferential angle between two adjacent deflector strips is 120°.

Images