Split section capable of improving deformation of tower drum in tower assembling process and split tower drum

Abstract

The utility model discloses a fragmented section capable of improving deformation of a tower drum in the tower assembling process and a fragmented tower drum, and relates to the field of tower drum structures. Each sub-segment comprises a sub-segment body, lug plates are arranged on the two sides of each sub-segment body, and the lug plates are located in the middle of a bus of the sub-segment body and on the outer surface of the sub-segment body; the axis of the lug hole in the lug plate is perpendicular to the generatrix of the segment body. The split tower drum comprises a plurality of split sections capable of improving tower drum deformation in the tower assembling process, and a 360-degree drum shape is formed by circumferentially assembling a plurality of split section bodies. According to the utility model, the deformation of the middle part of the tower drum in the splicing process of the segmented tower drum can be effectively improved, and the splicing efficiency of the tower drum is further improved.

Description

Technical Field

[0001] This utility model relates to the field of tower structure, and in particular to a segmented and pieced tower that can improve tower deformation during tower assembly. Background Technology

[0002] In the wind power industry, segmented towers have been widely used. With the rapid development of the wind power industry, the diameter of segmented towers has reached a large size stage. Therefore, for ease of transportation, segmented towers are usually transported in multiple segments, which are then assembled on-site to form the segmented tower. The specific assembly process is as follows:

[0003] First, connect multiple segmented blocks along the axial direction to form segmented sections; then connect multiple segmented sections along the circumferential direction to form a segmented tower.

[0004] In practical applications, due to the long generatrix (length in the axial direction) of the segments and the compression between adjacent segments under their own weight, outward deformation can easily occur at the middle edge of the segments. This necessitates adjusting the deformed position and restoring the deformation when circumferentially assembling the segmented tower. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems by providing a segmented and pieced tower that can improve tower deformation during tower assembly, effectively reducing deformation in the middle of the tower during assembly and thus improving tower assembly efficiency.

[0006] The technical solution adopted by this utility model is as follows: a segment that can improve the deformation of the tower during the tower assembly process includes a segment body, and ear plates are provided on both sides of the segment body. The ear plates are located at the middle position of the generatrix of the segment body and on the outer surface of the segment body; the axis of the ear hole on the ear plate is perpendicular to the generatrix of the segment body.

[0007] Furthermore, there are multiple ear plates, which are evenly distributed on both sides of the segment body and arrayed along the generatrix direction of the segment body.

[0008] Furthermore, longitudinal flanges for splicing are fixed on both sides of the segment body, and the longitudinal flanges are located on the inner surface of the segment body.

[0009] Furthermore, both ends of the segment body are fixedly connected with circumferential flanges.

[0010] Furthermore, the segmented body is composed of multiple segmented blocks spliced ​​together, and the splicing direction of the segmented blocks is along the generatrix direction of the segmented body.

[0011] Furthermore, the ear plate is fixed on the segment block and located in the middle of the segment block's busbar.

[0012] A segmented tower includes multiple segments that improve tower deformation during assembly, and the multiple segments are circumferentially assembled to form a 360° cylindrical shape.

[0013] Furthermore, there is a gasket between two adjacent segment bodies, and multiple connecting through holes are provided on the gasket. The positions of the connecting through holes match the positions of the flange holes on the longitudinal flange. Bolts pass through the flange holes and connecting through holes so that multiple bolts hold the gasket between the adjacent longitudinal flanges and the longitudinal flange.

[0014] Furthermore, it also includes a circumferential connecting plate, which is connected to the adjacent circumferential flange by connecting screws, and the circumferential connecting plate is installed inside the circumferential flange.

[0015] Furthermore, it also includes a circumferential positioning plate. When assembling adjacent segment bodies, the circumferential positioning plate is connected to the adjacent circumferential flange, and the installation position of the circumferential positioning plate is located on the outer end face of the circumferential flange.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] This invention provides ear plates on segmented bodies. When assembling segmented bodies to form segmented towers, ear plates at the same position on adjacent segmented bodies can be connected by bolts or pins. Bolts or pins constrain adjacent segmented bodies, effectively preventing deformation of the middle of the tower during assembly, thereby improving the tower assembly efficiency. Attached Figure Description

[0018] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the segmented structure disclosed in this utility model;

[0020] Figure 2 This is a schematic diagram of the segmented tower structure disclosed in this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] The markings in the diagram are: 1-segment body; 11-ear plate; 12-segment block; 13-circumferential flange; 14-longitudinal flange; 2-segment tower; 3-circumferential positioning plate; 4-circumferential connecting plate; 5-pad plate. Detailed Implementation

[0023] In the description of this specification, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0024] Furthermore, the use of terms such as "horizontal" or "vertical" in this specification does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this specification, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, a link can be a fixed link, a detachable link, or an integral link; it can be a mechanical link or an electrical link; it can be a direct link or an indirect link through an intermediate medium; it can be a connection within two components.

[0026] Example 1

[0027] like Figure 1 , Figure 3 As shown, a segment that can improve tower deformation during tower assembly includes a segment body 1, with ear plates 11 on both sides of the segment body 1. The ear plates 11 are located at the middle of the generatrix of the segment body 1 and on the outer surface of the segment body 1. The axis of the ear hole on the ear plate 11 is perpendicular to the generatrix of the segment body 1.

[0028] In this embodiment, the ear plate 11 is located at the middle position of the busbar of the segment body 1 because the middle position is the farthest from the two end positions and is the position most prone to deformation.

[0029] In this embodiment, the ear plate 11 is disposed on the outer surface of the segment body 1, which facilitates the installation of bolts or pins by the staff on the outside. At the same time, since the deformation of the middle edge of the segment body 1 is outward, the ear plate 11 disposed on the outer surface has a better constraint effect.

[0030] In this embodiment, the axis of the ear hole is perpendicular to the generatrix of the segment body 1, so that the constraint formed by the bolt or pin is perpendicular to the edge of the segment body 1 to avoid the existence of component force along the generatrix causing misalignment of adjacent segment bodies 1.

[0031] In summary, by setting ear plates 11 on the segment body 1, when assembling the segment body 1 to form the segmented tower 2, the ear plates 11 at the same position on adjacent segment body 1 can be connected by bolts or pins. The bolts or pins can constrain the adjacent segment body 1, effectively preventing the deformation of the middle of the tower 2 during the assembly process, thereby improving the tower assembly efficiency.

[0032] It should be noted that if there is leakage between the segments 12 that make up the segment body 1, it is necessary to manually apply glue to the outside. The ear plate 11 can be used as a safety anchor point for the operator to hang a safety rope.

[0033] Furthermore, the ear plate 11 can be installed on the segment body 1 by welding, gluing, magnetic attraction, etc. If welding is used, the coaxiality of the through hole of the ear plate 11 needs to be checked after welding is completed at the tower factory. If gluing is used, it can be completed at the tower factory or on site, and the curvature of the surface of the ear plate 11 that contacts the segment body 1 should be consistent with the curvature of the surface of the segment body 1, so that the contact surface is as large as possible to ensure the stability of the gluing. If magnetic attraction is used, it can be completed at the tower factory or on site, the contact surface of the ear plate 11 with the segment body 1 should be as large as possible, and the magnetic attraction component should be a product with strong attraction.

[0034] Example 2

[0035] Based on Example 1, further feasible implementation methods are proposed.

[0036] In one feasible implementation, there are multiple ear plates 11, which are evenly distributed on both sides of the segment body 1 and arrayed along the generatrix direction of the segment body 1. This increases the number of constraint positions and makes the constraint force evenly distributed along the generatrix direction of the segment body 1, so as to further reduce the deformation of the middle part of the tower 2 during the assembly process.

[0037] It should be noted that the number of ear plates 11 can be increased or decreased according to the length of the segment body 1. When the ear plates 11 are installed on the segment body 1, they must be staggered from the longitudinal welds and circumferential welds on the segment body 1.

[0038] In one feasible implementation, longitudinal flanges 14 for splicing are fixed on both sides of the segment body 1. The longitudinal flanges 14 are located on the inner surface of the segment body 1, and the inner side is positioned by positioning pins through the longitudinal flanges 14, which further reduces the deformation when the segment body 1 is spliced ​​into segmented tower 2. The longitudinal flanges 14 are made of the same material as the segment body 1, and are welded to the inner wall of the segment body 1 on the side.

[0039] In one feasible implementation, both ends of the segmented body 1 are fixedly connected with circumferential flanges 13 for connecting adjacent segmented towers 2, or segmented towers 2 and straight towers (unsegmented towers).

[0040] In one feasible implementation, the segment body 1 is composed of multiple segment blocks 12 spliced ​​together, and the splicing direction of the segment blocks 12 is along the generatrix direction of the segment body 1; the ear plate 11 is fixed on the segment block 12 and located in the middle of the generatrix of the segment block 12, so as to satisfy that the installation position of the ear plate 11 is staggered from the longitudinal weld and circumferential weld on the segment body 1.

[0041] It should be noted that, in this embodiment, the circumferential flange 13 can be formed by radially cutting a complete flange into several pieces; the segmented block 12 is formed by radially cutting a welded complete cylinder into several pieces.

[0042] Example 3

[0043] like Figure 1-Figure 3 As shown, a segmented tower 2 includes multiple segments as described in any one of the embodiments 1-2, which can improve the tower deformation during the tower assembly process. The multiple segments are assembled circumferentially to form a 360° cylindrical shape. The number of segments is preferably 3, that is, the arc of the segments is 120°.

[0044] In one feasible implementation, a gasket 5 is provided between two adjacent segment bodies 1. The gasket 5 has multiple connecting through holes, the positions of which match the flange holes on the longitudinal flanges 14. Multiple bolts pass through the flange holes and connecting through holes on the longitudinal flanges 14 to connect the adjacent longitudinal flanges 14 and the gasket 5. That is, bolts pass through the flange holes and connecting through holes to connect the adjacent longitudinal flanges 14 and the gasket 5 between them. The thickness of the gasket 5 is preferably matched with the spacing between the adjacent longitudinal flanges 14 to support and constrain the longitudinal flanges 14 and improve the stability of the connection.

[0045] One feasible implementation also includes a circumferential connecting plate 4, which is connected to the adjacent circumferential flange 13 by connecting screws. The circumferential connecting plate 4 is installed inside the circumferential flange 13. The circumferential connecting plate not only realizes the connection between adjacent circumferential flanges, but also positions the two ends of the segment body 1, further reducing the amount of deformation.

[0046] One feasible implementation also includes a circumferential positioning plate 3, which is used when assembling multiple segment bodies 1 into segmented towers 2 and is removed after assembly. When assembling adjacent segment bodies 1, the circumferential positioning plate 3 is connected to the adjacent circumferential flange 13, and the installation position of the circumferential positioning plate 3 is located on the outer end face of the circumferential flange 13. The circumferential positioning plate 3 is used to limit the axial misalignment of the segment bodies 1 during splicing.

[0047] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A segment that can improve tower deformation during tower assembly, characterized in that: The segment body (1) includes ear plates (11) on both sides of the segment body (1), and the ear plates (11) are located at the middle position of the generatrix of the segment body (1) and on the outer surface of the segment body (1); the axis of the ear hole on the ear plate (11) is perpendicular to the generatrix of the segment body (1).

2. The segmentation according to claim 1, characterized in that: The number of ear plates (11) is multiple, and the multiple ear plates (11) are evenly distributed on both sides of the segment body (1) and arrayed along the generatrix direction of the segment body (1).

3. The segmentation according to claim 1, characterized in that: The segment body (1) is also fixed with longitudinal flanges (14) for splicing on both sides, and the longitudinal flanges (14) are located on the inner surface of the segment body (1).

4. The segmentation according to claim 1, characterized in that: Both ends of the segment body (1) are fixedly connected with circumferential flanges (13).

5. The segmentation according to any one of claims 1-4, characterized in that: The segment body (1) is composed of multiple segment blocks (12) spliced ​​together, and the splicing direction of the segment blocks (12) is along the generatrix direction of the segment body (1).

6. The segmentation according to claim 5, characterized in that: The ear plate (11) is fixed on the segment block (12) and is located in the middle of the busbar of the segment block (12).

7. A segmented tower, characterized in that: It includes multiple segments as described in any one of claims 1-6 that can improve tower deformation during tower assembly, and the multiple segments (1) are circumferentially assembled to form a 360° cylindrical shape.

8. The segmented tower according to claim 7, characterized in that: There is a pad (5) between two adjacent segment bodies (1). Multiple connecting through holes are provided on the pad (5). The position of the connecting through holes matches the position of the flange hole on the longitudinal flange (14). There are bolts passing through the flange hole and the connecting through hole so that multiple bolts hold the pad (5) between the adjacent longitudinal flange (14) and the longitudinal flange (14).

9. The segmented tower according to claim 7, characterized in that: It also includes a circumferential connecting plate (4), which is connected to the adjacent circumferential flange (13) by connecting screws, and the circumferential connecting plate (4) is installed inside the circumferential flange (13).

10. The segmented tower according to claim 7, characterized in that: It also includes a circumferential positioning plate (3). When assembling adjacent segment bodies (1), the circumferential positioning plate (3) is connected to the adjacent circumferential flange (13), and the installation position of the circumferential positioning plate (3) is located on the outer end face of the circumferential flange (13).

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