LU504072B1

LU504072B1 - Installation platform facilitating assembling prefabricated concrete tower segments with different sizes for wind turbine

Info

Publication number: LU504072B1
Application number: LU504072A
Authority: LU
Inventors: Bing Zou; Deqi Wang; Shiyang Dai; Dongming Du; Zhonghua Zhang; Chengxin Ren; Lidong Li; Zhongyi Sun; Qiang Fu; Huibin Zhao; Chang Liu; Yun Zhao; Zhijia Yang; Chong Wang; Hui Leng; Long Xiao; Lei Cao
Original assignee: Huaneng Power Int Inc Yingkou Power Plant
Priority date: 2022-11-10
Filing date: 2023-04-25
Publication date: 2023-10-26
Also published as: CN115681011A

Abstract

An installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine is disclosed according to the present application. The installation platform includes an installation platform main structure and prefabricated concrete tower segments, where the installation platform main structure includes a central frame located in the center, connecting structures, and supporting beams. A limit positioning component for limiting and positioning the prefabricated concrete tower segments is arranged on the top of each of the supporting beams, and a position measuring and limiting component, which is used for carrying out position measuring and limiting on the prefabricated concrete tower segments with different inner diameters, is arranged on the top of the central frame. The provision of the position measuring and limiting component facilitates quickly positioning and measuring the prefabricated concrete tower segments with different inner diameters on the installation platform main structure, and facilitates quickly positioning and placing the prefabricated concrete tower segments with different inner diameters. The prefabricated concrete tower segments are limited, positioned, and assembled through the limit positioning component, rather than concrete tower segments being assembled through positioning pins. The limit positioning component is arranged inside a first sliding groove on the supporting beam to facilitate position adjustment, rapid positioning and assembling the prefabricated 20 concrete tower segments with different inner diameters.

Description

INSTALLATION PLATFORM FACILITATING ASSEMBLING PREFABRICATED

CONCRETE TOWER SEGMENTS WITH DIFFERENT SIZES FOR WIND

TURBINE

FIELD

[0001] The present application relates to the technical field of installation of prefabricated segments, and in particular to an installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine.

BACKGROUND

[0002] With the further development and utilization of wind power resources in China, wind turbines gradually have the characteristics of high power and high altitude, and the traditional flexible steel tower technology for wind power has been difficult to meet the requirements of large stiffness and large diameter of wind turbine towers. In recent years, with the promotion of prefabricated concrete technology in China, prefabricated concrete tower segments are increasingly widespread applied in the field of wind power generation, which effectively make up for the shortcomings of low stiffness and small diameter of flexible steel towers.

However, the speed and accuracy in assembly of prefabricated concrete tower segments greatly affect the construction period and investment cost. How to ensure the assembling accuracy and construction speed of the prefabricated concrete tower segments has become a new challenge and difficult problem for the prefabricated concrete tower technology in the wind power industry in the future.

[0003] The patent document CN202010692110.4 disclosed an assembly platform and an assembling method for prefabricated concrete tower segments. The assembly platform disclosed therein includes a central frame, connecting sections, supporting beams, a supporting panel, limiting positioning pin holes, positioning pins, leveling legs, backing plates.

The octagonal central frame is connected with eight supporting beams through the connecting sections to form a main structure of the assembly platform. The supporting panel is welded on a top surface of each of the supporting beams. A series of limiting positioning pin holes are defined on the supporting panel. The positioning pins are inserted into the limiting positioning pin holes to realize the rapid and accurate positioning of the concrete tower segments.

Leveling legs are arranged at the bottom of side beams of the central frame and the bottom of an outer end of the supporting beams, to serve as a supporting seat and leveling device of the platform. The bottom of each leveling leg 1s provided with the backing plate, to disperse the concentrated load on an upper part of the leveling leg and ameliorate the local settlement of the foundation.

[0004] According to the assembly platform and the assembling method of prefabricated concrete tower segment described above, positioning pins are provided to facilitate the assembling of concrete tower segments. However, the above assembly platform of prefabricated concrete tower segments is not convenient for rapid positioning and assembling of concrete tower segments with different inner diameters, it is required to adjust the positions of the concrete tower segments back and forth for assembling. When the concrete tower segments are too far apart from each other, cracks may appear in the assembling, and when being too close to each other, the concrete tower segments cannot be successfully assembled.

It is required to continuously adjust the position of concrete tower segments on the assembly platform for assembling, resulting in slow assembling speed and affecting the construction speed. Moreover, only several constant concrete tower segments with different inner diameter can be assembled and positioned by assembling and positioning through positioning pins, the application scope of the assembly platform is limited, and it is impossible to quickly position and assemble concrete tower segments with different inner diameters.

SUMMARY

[0005] An installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine is provided according to the present application, to solve the technical problems described in the conventional technology.

[0006] The following technical solutions are provided according to the present application, to solve the above technical problems.

[0007] An installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine includes an installation platform main structure and prefabricated concrete tower segments, the installation platform main structure includes a central frame located in the center, connecting structures, and supporting beams, the central frame is of an octagonal structure, each of the connecting structures includes a connecting section, the number of the connecting section and the number of the supporting beams each is eight, where a middle part of each side of the central frame 1s connected to a corresponding one of the supporting beams through a corresponding one of the connecting sections, where a limit positioning component for limiting and positioning the prefabricated concrete tower segments is arranged on a top of each of the supporting beams, a position measuring and limiting component, which is used for carrying out position measuring and limiting on the prefabricated concrete tower segments with different inner diameters, is arranged on the top of the central frame; where a horizontal adjustment support component is arranged at a bottom of the central frame and a bottom of an end, away from the connecting section, of each of the supporting beams.

[0008] In an embodiment, the position measuring and limiting component includes a limiting sleeve seat, the limiting sleeve seat is of an I-shaped structure, a first bolt fixing hole runs through a middle part of the limiting sleeve seat, where a limiting ring is sleeved on an outer circumferential arm in the middle part of the limiting sleeve seat, the limiting ring is rotatably connected with the limiting sleeve seat, where a connecting rod is connected to an outer wall of the limiting ring, the connecting rod is a hollow structure with one end open, a measuring rod is slidably arranged inside the connecting rod, where a toggle groove runs through the top of the connecting rod, a toggle block is arranged on the top of one end, closer to the connecting rod, of the measuring rod, the toggle block is movably arranged inside the toggle groove and a top of the toggle block extends outside the toggle groove, where a second bolt fixing hole runs through a top of one end, away from the limiting ring, of the connecting rod, where the second bolt fixing hole is internally provided with a first locking screw.

[0009] In an embodiment, a third bolt fixing hole corresponding to the first bolt fixing hole is arranged at the bottom of the limiting sleeve seat and runs through a top of a middle part of the central frame, and the first bolt fixing hole and the third bolt fixing hole are connected through a second locking screw.

[0010] In an embodiment, a measuring ruler is arranged at a top of the measuring rod.

[0011] In an embodiment, a first sliding groove is defined at the top of each of the supporting beams, and the limit positioning component is slidable on the first sliding groove.

[0012] In an embodiment, each limit positioning component includes a positioning block, the positioning block is of a T-shaped structure, and an outer wall of an end, closer to the supporting beam, of the positioning block is of an arc-shaped structure, where a bottom of the positioning block is slidably arranged inside the first sliding groove, a fourth bolt fixing hole runs through a top of each of two sides of the positioning block, where the fourth bolt fixing hole is internally provided with a third locking screw.

[0013] In an embodiment, the horizontal adjustment support components include leveling support feet, the leveling support feet are evenly distributed at a bottom of each of side beams of the central frame and a center position of a bottom of an end, away from the connecting section, of the supporting beam.

[0014] In an embodiment, a height and a length of the supporting beam meet the requirements for placement and assembling of prefabricated segments with different radius sizes of the prefabricated concrete tower segments.

[0015] Compared with the conventional technology, the present disclosure has the following advantageous effects.

[0016] Firstly, for the problems in the conventional technology, the provision of the position measuring and limiting component in the present application facilitates quickly positioning and measuring the prefabricated concrete tower segments with different inner diameters on the installation platform main structure, and facilitates quickly positioning and placing the prefabricate concrete tower segments with different inner diameters on the installation platform main structure, segments with different diameter sizes in the prefabricated concrete tower segments can be quickly and accurately positioned and assembled, effectively ensuring the precision and speed of assembling construction.

[0017] Secondly, in the present application, the prefabricated concrete tower segments are limited, positioned, and assembled through the limit positioning component, rather than concrete tower segments being assembled through positioning pins. The limit positioning component is arranged inside the first sliding groove on the supporting beam, to facilitate the position adjustment. The prefabricated concrete tower segments with different sizes can be assembled, thereby having a wide application range. The prefabricated concrete tower segments with different inner diameters can be quickly positioned and assembled.

[0018] Hereinafter, the present application is explained in detail with reference to the drawings and specific embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG. 1 is an overall isometric view of an installation platform according to the present application;

[0020] FIG. 2 is a schematic view of an installation platform main structure according to the present application;

[0021] FIG. 3 is an isometric view of a position measuring and limiting component according to the present application; 5 [0022] FIG. 4 is a schematic view of a limiting sleeve seat and a connecting rod according to the present application;

[0023] FIG. 5 is a schematic view of a measuring rod according to the present application;

[0024] FIG. 6 is an isometric view of a limit positioning component according to the present application;

[0025] FIG. 7 is a top view of the installation platform according to the present application; and

[0026] FIG. 8 is a schematic view of a measuring ruler according to the present application.

[0027] Reference numerals in the drawings are listed as follows: 1, installation platform main structure; 2, prefabricated concrete tower segment; 3, central frame; 31, third bolt fixing hole; 32, second locking screw; 4, connecting structure; 41, connecting section; 5, supporting beam; 51, first sliding groove; 6, limit positioning component; 61, positioning block; 62 fourth bolt fixing hole; 63, third locking screw; 7, position measuring and limiting component; 71, limiting sleeve seat; 72, first bolt fixing hole; 73, limiting ring; 74, connecting rod; 741, toggle groove; 742, second bolt fixing hole; 743, first locking screw; 75, measuring rod; 751, toggle block; 752, measuring ruler; 8, horizontal adjustment support component; 81, leveling support feet.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to facilitate the understanding of the present application, the present application will be described in full details with reference to the relevant drawings, several embodiments of the present application are shown in the attached drawings. However, the present application can be implemented in different forms, and is not limited to the embodiments described in the specification. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on another element or there may be an intermediate element, when an element is considered to be "connected" to the other element, it can be directly connected to the other element or there may be an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field of the present application. Terms used in the specification of the present application are only for the purpose of describing particular embodiments and is not aimed to limit the present application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

[0031] With particular reference to FIG. 1 to FIG. 8, an installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine is provided according to an embodiment of the present application. The installation platform includes an installation platform main structure 1 and prefabricated concrete tower segments 2, the installation platform main structure 1 includes a central frame 3 located in the center, connecting structures 4, and supporting beams 5, a height and a length of the supporting beams 5 meet the requirements for placement and assembling of prefabricated segments with different radius sizes of the prefabricated concrete tower segments 2. The central frame 3 is of an octagonal structure, each of the connecting structures 4 includes a connecting section 41, the number of the connecting section 41 and the number of the supporting beams 5 each is eight. A middle part of each side of the central frame 3 is connected to a corresponding one of the supporting beams 5 through a corresponding one of the connecting sections 41. Two ends of each connecting section 41 are connected with the central frame 3 and the supporting beam 5 by welding, so as to ensure the strength and hardness of the connection. A limit positioning component 6 for limiting and positioning the prefabricated concrete tower segments 2 is arranged on the top of each of the supporting beams 5. A position measuring and limiting component 7, which is used for carrying out position measuring and limiting on the prefabricated concrete tower segments 2 with different inner diameters, is arranged on the top of the central frame 3. The position measuring and limiting component 7 includes a limiting sleeve seat 71, the limiting sleeve seat 71 is of an I-shaped structure, a first bolt fixing hole 72 runs through a middle part of the limiting sleeve seat 71. A limiting ring 73 is sleeved on an outer circumferential arm in the middle part of the limiting sleeve seat 71 and is rotatably connected with the limiting sleeve seat 71. A connecting rod 74 is connected to an outer wall of the limiting ring 73, and the connecting rod 74 is a hollow structure with one end open. A measuring rod 75 is slidably arranged inside the connecting rod 74, and a measuring ruler 752 is arranged at the top of the measuring rod 75. The measuring rod 75 pulled from the inside of the connecting rod 74 is measured through the measuring ruler 752 based on the radius of the prefabricated concrete tower segment 2, so as to facilitate rapid positioning on the installation platform main structure 1 based on the radius of the prefabricated concrete tower segment 2, and facilitate placing the prefabricated concrete tower segment 2 on the installation platform main structure 1, which is simple and convenient to operate. The measuring rod 75 is slidably arranged inside the connecting rod 74, a toggle groove 741 runs through the top of the connecting rod 74, a toggle block 751 is arranged on the top of one end, closer to the connecting rod, of the measuring rod 75, the toggle block 751 is movably arranged inside the toggle groove 741 and a top of the toggle block extends outside the toggle groove 741. The measuring rod 75 can be pulled back and forth inside the connecting rod 74 through the toggle block 751, based on the radius of the prefabricated concrete tower segment 2, which is convenient to use. A second bolt fixing hole 742 runs through a top of one end, away from the limiting ring 73, of the connecting rod 74, and the second bolt fixing hole 742 is internally provided with a first locking screw 743. The measuring rod 75 can be fixed by the first locking screw 743 after the position of measuring rod 75 is adjusted based on the radius of the prefabricated concrete tower segment 2. The connecting rod 74 is toggled to drive the measuring rod 75 to rotate 360 degrees following the limiting ring 73, thereby quickly positioning and installing the prefabricated concrete tower segments 2, ensuring the installation accuracy and efficiency. A third bolt fixing hole 31 corresponding to the first bolt fixing hole 72 is arranged at the bottom of the limiting sleeve seat 71 and runs through a top of a middle part of the central frame 3. The first bolt fixing hole 72 and the third bolt fixing hole 31 are connected through a second locking screw 32, and the position measuring and limiting component 7 is fixed to the central frame 3 by the second locking screw 32.

[0032] It should be noted that, in this embodiment, the provision of the position measuring and limiting component 7 facilitates quickly positioning and measuring the prefabricated concrete tower segments 2 with different inner diameters on the installation platform main structure 1, and facilitates quickly positioning and placing the prefabricate concrete tower segments 2 with different inner diameters on the installation platform main structure 1, segments with different diameter sizes in the prefabricated concrete tower segments 2 can be quickly and accurately positioned and assembled, effectively ensuring the precision and speed of assembling construction.

[0033] In some embodiments, referring to FIG. 1, FIG. 2 and FIG. 6, a first sliding groove 51 is defined at the top of each of the supporting beams 5, and the limit positioning component 6 is slidable on the first sliding groove 51. Each limit positioning component 6 includes a positioning block 61, the positioning block 61 is of a T-shaped structure, and an outer wall of an end, closer to the supporting beam 5, of the positioning block 61 is of an arc-shaped structure, and a bottom of the positioning block 61 is slidably arranged inside the first sliding groove 51, a fourth bolt fixing hole 62 runs through a top of each of two sides of the positioning block 61, and the fourth bolt fixing hole 62 is internally provided with a third locking screw 63.

[0034] It should be noted that, in this embodiment, the prefabricated concrete tower segments are limited, positioned, and assembled through the limit positioning component 6, rather than concrete tower segments being assembled through positioning pins. The limit positioning component 6 is arranged inside the first sliding groove 51 on the supporting beam 5, to facilitate the position adjustment. The prefabricated concrete tower segments 2 with different sizes can be assembled, thereby having a wide application range. The prefabricated concrete tower segments 2 with different inner diameters can be quickly positioned and assembled.

[0035] Specifically, referring to FIG. 1 and FIG. 2, a horizontal adjustment support component 8 is arranged at a bottom of the central frame 3 and a bottom of an end, away from the connecting section 41, of the supporting beam 5. The horizontal adjustment support components 8 include leveling support feet 81, where the leveling support feet 81 are evenly distributed at a bottom of each of side beams of the central frame 3 and a center position of a bottom of an end, away from the connecting section 41, of the supporting beam 5.

[0036] It should be noted that, in this embodiment, the levelness of the central frame 3 is ensured by adjusting the leveling support feet 81 at the central frame 3, and top surfaces of the eight supporting beams 5 are ensured to be at the same horizontal height by adjusting the leveling support feet 81 of the supporting beams 5, thereby realizing the construction requirements of high-precision assembling of prefabricated concrete tower segments.

[0037] The specific flow of the present application is as follows.

[0038] The limiting sleeve seat 71 is fixed to the top of the central frame 3 by the second locking screw 32, the measuring rod 75 is adjusted according to the radius of the prefabricated concrete tower segment 2 to be installed, and the length of the measuring rod 75 1s adjusted by moving the toggle block 751 inside the toggle groove 741 on the measuring rod 75. The observation is performed by using the measuring ruler 752 on the measuring rod 75, so that the length of the measuring rod 75 from the end point to the center point of the central frame 3 1s the same as the radius of the prefabricated concrete tower segment 2. The first locking screw 743 is rotated to fix the measuring rod 75 and the connecting rod 74, the toggle groove 741 is pulled to rotate 360 degrees to perform a pretest, the connecting rod 74 drives the measuring rod 75 to rotate 360 degrees following the limiting ring 73, so that the prefabricated concrete tower segment 2 can be quickly positioned on the supporting beam 5.

After being positioned, the prefabricate concrete tower segment 2 is placed on the supporting beam 5, so that an end of the measuring rod 75 is connected with the inner wall of the middle part of the prefabricated concrete tower segment 2, positioning blocks 61 are placed on both sides of the first sliding groove 51 at two ends of the prefabricate concrete tower segment 2.

Each of the positioning blocks 61 is fixed to the supporting beam 5 by the third locking screw 63. Then positioning blocks 61 are placed inside the first sliding groove 51 at an inner wall and an outer wall in the middle part of the prefabricated concrete tower segment 2, the positioning block 61 is fixed to the supporting beam 5 through the third locking screw 63, the above steps are repeated in turn for installation.

[0039] The present application is exemplarily described above in combination with the attached drawings. Apparently, the specific implementation of the present application is not limited by the above methods. As long as the non-substantive improvement of the method concept and technical solution of the present application is adopted, or the idea and technical solution of the present application are directly applied to other occasions without improvement, it is within the scope of protection of the present application.

Claims

1. An installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine, comprising an installation platform main structure (1) and prefabricated concrete tower segments (2), wherein the installation platform main structure (1) comprises a central frame (3) located in the center, connecting structures (4), and supporting beams (5), the central frame (3) is of an octagonal structure, each of the connecting structures (4) comprises a connecting section (41), the number of the connecting section (41) and the number of the supporting beams (5) each is eight, wherein a middle part of each side of the central frame (3) is connected to a corresponding one of the supporting beams (5) through a corresponding one of the connecting sections (41), wherein a limit positioning component (6) for limiting and positioning the prefabricated concrete tower segments (2) 1s arranged on a top of each of the supporting beams (5), a position measuring and limiting component (7), which is used for carrying out position measuring and limiting on the prefabricated concrete tower segments (2) with different inner diameters, is arranged on the top of the central frame (3),wherein a horizontal adjustment support component (8) is arranged at a bottom of the central frame (3) and a bottom of an end, away from the connecting section (41), of each of the supporting beams (5).

2. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 1, wherein the position measuring and limiting component (7) comprises a limiting sleeve seat (71), the limiting sleeve seat (71) is of an I-shaped structure, a first bolt fixing hole (72) runs through a middle part of the limiting sleeve seat (71), wherein a limiting ring (73) is sleeved on an outer circumferential arm in the middle part of the limiting sleeve seat (71), the limiting ring (73) is rotatably connected with the limiting sleeve seat (71), wherein a connecting rod (74) is connected to an outer wall of the limiting ring (73), the connecting rod (74) is a hollow structure with one end open, a measuring rod (75) is slidably arranged inside the connecting rod (74), wherein a toggle groove (741) runs through the top of the connecting rod (74), a toggle block (751) is arranged on the top of one end, closer to the connecting rod (74), of the measuring rod (75), the toggle block (751) is movably arranged inside the toggle groove (741)

and a top of the toggle block (751) extends outside the toggle groove (741), wherein a second bolt fixing hole (742) runs through a top of one end, away from the limiting ring (73), of the connecting rod (74), wherein the second bolt fixing hole (742) is internally provided with a first locking screw (743).

3. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 2, wherein a third bolt fixing hole (31) corresponding to the first bolt fixing hole (72) is arranged at the bottom of the limiting sleeve seat (71) and runs through a top of a middle part of the central frame (3), and the first bolt fixing hole (72) and the third bolt fixing hole (31) are connected through a second locking screw (32).

4. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 2, wherein a measuring ruler (752) is arranged at a top of the measuring rod (75).

5. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 1, wherein a first sliding groove (51) is defined at the top of each of the supporting beams (5), and the limit positioning component (6) is slidable on the first sliding groove (51).

6. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 5, wherein each limit positioning component (6) comprises a positioning block (61), the positioning block (61) is of a T-shaped structure, and an outer wall of an end, closer to the supporting beam (5), of the positioning block (61) is of an arc-shaped structure, wherein a bottom of the positioning block (61) is slidably arranged inside the first sliding groove (51), a fourth bolt fixing hole (62) runs through a top of each of two sides of the positioning block (61), wherein the fourth bolt fixing hole (62) is internally provided with a third locking screw (63).

7. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 1, wherein the horizontal adjustment support components (8) comprise leveling support feet (81), the leveling support feet (81) are evenly distributed at a bottom of each of side beams of the central frame (3) and a center position of a bottom of an end, away from the connecting section (41), of the supporting beam (5).

8. The installation platform facilitating assembling prefabricated concrete tower segments with different sizes for a wind turbine according to claim 1, wherein a height and a length of the supporting beam (5) meet the requirements for placement and assembling of prefabricated segments with different radius sizes of the prefabricated concrete tower segments (2).