Wind power tower drum

Abstract

The utility model relates to a wind power tower drum, which belongs to the technical field of wind power and comprises a tower drum body, a reinforcing pipe is mounted on the inner wall of the tower drum body, a plurality of groups of detachable reinforcing components are mounted in the reinforcing pipe, a ladder stand is mounted in the reinforcing pipe, and a plurality of groups of detachable supporting devices are mounted between a supporting column and the reinforcing pipe. The supporting device comprises three supporting plates, one ends of the three supporting plates are connected with the reinforcing pipe, and the other ends of the three supporting plates are clamped in the supporting column. After the structure is adopted, the supporting device has the following advantages that the reinforcing pipe is attached to the inner wall of the tower shell, first-time damping and acting force counteracting are achieved, and the damping effect of the tower shell is improved; and the other end of the supporting plate is inserted into the annular groove of the supporting column, so that the stress mode of the supporting column is more reasonable, the acting force is counteracted, the structure can provide supporting and traction for the inner wall of the tower drum from all directions of the tower drum body as much as possible, and the stability and the anti-seismic property of the tower drum body are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a wind power tower. Background Art

[0002] In order to better capture wind energy, wind turbine towers are usually designed to be very high; at the same time, in order to improve the stability and fatigue resistance of the tower, the wall thickness and diameter of the wind turbine tower are usually designed to be very large. In addition, in order to avoid resonance caused by the swing frequency of the vertically installed tower falling within the operating frequency of the wind turbine, the diameter of large units is usually more than 4 meters, and the wall thickness is more than 60 mm. Such a large steel structure equipment is extremely difficult to process, inconvenient to transport, and even more difficult to install and maintain, which in disguise increases the cost of power generation.

[0003] In view of the above-mentioned deficiencies in the manufacturing and use of wind turbine towers, a Chinese patent document with the announcement number CN203035462U discloses a local reinforcement structure of the tower of a wind turbine. It includes: at least two annular load-reducing plates fixed on the inner wall of the tower; a plurality of longitudinal reinforcement beams fixed on the inner wall of the tower, and the two ends of each longitudinal reinforcement beam are respectively fixed on the annular load-reducing plates; a plurality of annular retainers, and each annular retainer is respectively fixedly connected to a plurality of the longitudinal reinforcement beams. The above-mentioned technical scheme realizes the internal support of the wind turbine tower by arranging a plurality of annular load-reducing structures inside the wind turbine tower, and longitudinally arranging reinforcement beams on the load-reducing structures, thereby improving the stability and fatigue resistance of the tower. In addition, it can be inferred that the natural frequency of the tower will also change after the structure of the tower changes. Due to the enhancement of its internal strength, the tower diameter and wall thickness can be reduced without letting the swing frequency of the tower fall into the working frequency of the wind turbine.

[0004] However, the above technical solution still has problems in actual use. First, since the load-reducing components and reinforcement beams in the above technical solution are arranged in a ring along the inner wall of the tower, when the vertically arranged tower swings, the ring-shaped reinforcement components can only play a role in thickening the inner wall of the tower, and the structural reinforcement effect on the tower is limited, and the change in the natural frequency of the tower is also more limited. Secondly, the annular load-reducing plate must match the inner diameter of the tower during manufacturing in order to smoothly weld the load-reducing plate to the inner wall of the tower. This structural characteristic determines that the manufacture and installation of the load-reducing plate are relatively difficult, which invisibly increases the manufacturing cost of the tower. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides a

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] A wind power tower comprises a tower body, wherein a reinforcement pipe is installed on the inner wall of the tower body, a plurality of groups of detachable reinforcement components are installed in the reinforcement pipe, and a ladder is installed in the reinforcement pipe.

[0008] The reinforcement assembly comprises a cover plate arranged at the lower end of the reinforcement tube, a support column is installed on the cover plate, and a plurality of groups of detachable support devices are installed between the support column and the reinforcement tube;

[0009] The support device comprises three support plates, one end of each of the three support plates is connected to the reinforcement pipe and the other end is clamped in the support column;

[0010] The plurality of supporting devices are arranged in a staggered manner.

[0011] Preferably, the reinforcement pipe comprises a plurality of groups of connecting pipes stacked and connected together, flange rings are welded at both ends of the connecting pipes, two adjacent connecting pipes are connected by the flange rings, and one end of the support plate is connected to the flange ring.

[0012] Preferably, a plurality of annular grooves matching the support plate are provided on the inner side of the surface of the support column, and one end of the support plate can be pressed against the annular groove.

[0013] Preferably, a manhole is provided on one side of the upper end of the tower body, and threaded holes are provided around the manhole in a circumferential shape, and a manhole door is slidably connected in the manhole.

[0014] Preferably, flanges are welded to the upper and lower sides of the tower body respectively.

[0015] Preferably, the cover plate and the support column are coaxially arranged.

[0016] Preferably, connecting blocks are installed at both ends of the ladder, and the ladder is connected with a reinforcement pipe through the connecting blocks.

[0017] After adopting the above structure, the utility model has the following advantages:

[0018] The utility model achieves the first shock absorption and offsetting of the acting force by fitting the reinforcing tube to the inner wall of the tower shell, and the other end of the support plate is inserted into the annular groove of the support column, so that the force receiving mode of the support column is more reasonable, thereby offsetting the acting force. Such a structure can provide support and traction for the inner wall of the tower from all directions of the tower body as much as possible, so as to further improve the stability and seismic resistance of the tower body.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the reinforced pipe of the utility model;

[0023] Figure 3 It is a top view of the reinforced pipe of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation of the reinforcement component of the utility model;

[0025] Figure 5 It is a schematic diagram showing the structure of the reinforcement component of the utility model;

[0026] Figure 6 The utility model is a schematic diagram showing the structure of the ladder.

[0027] As shown in the figure: 1. Tower body; 101. Flange; 2. Reinforcement pipe; 201. Connecting pipe; 202. Flange ring; 3. Reinforcement assembly; 301. Cover plate; 302. Support column; 303. Support plate; 304. Ring groove; 4. Ladder; 401. Connecting block; 5. Manhole door. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The utility model is further described in detail below in conjunction with the full text.

[0031] Combined with Figure 1-Figure 6 A wind power tower comprises a tower body 1, a reinforcement pipe 2 is installed on the inner wall of the tower body 1, a plurality of groups of detachable reinforcement components 3 are installed in the reinforcement pipe 2, and a ladder 4 is installed in the reinforcement pipe 2.

[0032] The reinforcement assembly 3 includes a cover plate 301 disposed at the lower end of the reinforcement tube 2, a support column 302 is installed on the cover plate 301, and multiple groups of detachable support devices are installed between the support column 302 and the reinforcement tube 2;

[0033] When the utility model is implemented, Figure 2-Figure 5 As shown, the support device includes three support plates 303, one end of the three support plates 303 is connected to the reinforcement tube 2 and the other end is clamped in the support column 302, and multiple support devices are arranged in an alternate manner. The inner side of the surface of the support column 302 is provided with multiple groups of annular grooves 304 that match the support plates 303, and one end of the support plate 303 can be against the inside of the annular groove 304.

[0034] A plurality of supporting devices are arranged in a staggered manner. The staggered supporting devices can provide a stronger supporting force to the inner wall of the tower body 1 when the tower body 1 swings, thereby further improving the stability and vibration resistance of the tower body 1.

[0035] When the utility model is implemented, Figure 2 and Figure 4 As shown, the reinforcement pipe 2 includes a plurality of groups of connecting pipes 201 which are stacked and connected together. Flange rings 202 are welded at both ends of the connecting pipes 201. Two adjacent connecting pipes 201 are connected through the flange rings 202. One end of the support plate 303 is connected to the flange ring 202. Specifically, a threaded rod is installed on the flange ring 202, and a fixing nut is installed on the threaded rod. The connecting pipe 201 and the support plate 303 are connected together through the fixing nut. At the same time, the other end of the support plate 303 is inserted into the annular groove 304 of the support column 302. This can provide a stronger support for the inner wall of the tower body 1 on the one hand, and reduce the pressure on the inner wall of the tower body 1 on the other hand, prevent the supporting device from causing excessive pressure on the inner wall, thereby avoiding deformation of the tower body 1.

[0036] A manhole is provided on one side of the upper end of the tower body 1, and threaded holes are provided around the manhole in a surrounding shape, and a manhole door 5 is slidably connected in the manhole.

[0037] Flanges 101 are welded to the upper and lower sides of the tower body 1 respectively.

[0038] The cover plate 301 and the support column 302 are coaxially arranged, so that the force of the three support plates 303 is closer to the supporting force of the solid tower body 1 on itself. Therefore, the above structure further improves the stability and vibration resistance of the tower body 1.

[0039] The tower body 1 may swing in all directions, so the support plates 303 in the same plane will exert force on the support columns 302 to offset the force. Such a structure can provide support and traction for the inner wall of the tower from all directions of the tower body 1 as much as possible, thereby further improving the stability and seismic resistance of the tower body 1.

[0040] A connecting block 401 is installed on the ladder 4 , and the ladder 4 is connected to the reinforcement pipe 2 via the connecting block 401 .

[0041] In order to prevent the support plate 303 from breaking or bending during the swinging of the tower body 1, the reinforcement tube 2 is attached to the inner wall of the tower shell 1 to achieve the first shock absorption and offset force, and the other end of the support plate 303 is inserted into the annular groove 304 of the support column 302, so that the force mode of the support column 302 is more reasonable, preventing the support column 302 from being damaged by the tangential force. At the same time, the service life of the tower is extended.

[0042] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A wind power tower, comprising a tower body (1), characterized in that: A reinforcement pipe (2) is installed on the inner wall of the tower body (1), a plurality of groups of detachable reinforcement components (3) are installed in the reinforcement pipe (2), and a ladder (4) is installed in the reinforcement pipe (2). The reinforcement assembly (3) comprises a cover plate (301) arranged at the lower end of the reinforcement tube (2), a support column (302) being installed on the cover plate (301), and a plurality of groups of detachable support devices being installed between the support column (302) and the reinforcement tube (2); The support device comprises three support plates (303), one end of the three support plates (303) is connected to the reinforcement tube (2) and the other end is clamped in the support column (302); The plurality of supporting devices are arranged in a staggered manner.

2. The wind turbine tower according to claim 1, characterized in that: The reinforcement pipe (2) comprises a plurality of groups of connecting pipes (201) stacked and connected together, flange rings (202) are welded at both ends of the connecting pipes (201), two adjacent connecting pipes (201) are connected via the flange rings (202), and one end of the support plate (303) is connected to the flange ring (202).

3. The wind turbine tower according to claim 1, characterized in that: The inner side of the surface of the support column (302) is provided with a plurality of annular grooves (304) that match the support plate (303), and one end of the support plate (303) can be pressed against the inside of the annular groove (304).

4. The wind turbine tower according to claim 1, characterized in that: A manhole is provided on one side of the upper end of the tower body (1), threaded holes are provided around the manhole in a circumferential shape, and a manhole door (5) is slidably connected to the manhole.

5. The wind turbine tower according to claim 1, characterized in that: Flange plates (101) are welded to the upper and lower sides of the tower body (1) respectively.

6. The wind turbine tower according to claim 1, characterized in that: The cover plate (301) and the support column (302) are coaxially arranged.

7. The wind turbine tower according to claim 1, characterized in that: A connecting block (401) is installed on the ladder (4), and the ladder (4) is connected to the reinforcement pipe (2) via the connecting block (401).

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