Wind power tower drum with reinforcing function

Abstract

The utility model provides a wind power tower drum with a reinforcing function, which comprises a tower drum body, a concrete reinforcing member and a stress framework, the stress framework comprises a plurality of fastening hoops which are tightly held outside the tower drum body, a plurality of vertical connecting rods which are connected with the fastening hoops in a penetrating mode, a plurality of elastic adjusting rings which are tightly held outside the vertical connecting rods, and a reinforcing net which is tightly bonded with the concrete reinforcing piece. The fastening hoops and the elastic adjusting rings are alternately arranged in the axial direction of the tower drum body. The multiple vertical connecting rods are arranged in the circumferential direction of the fastening hoop. The reinforcing net is connected between the adjacent fastening hoops; the concrete reinforcing piece comprises a first-stage concrete reinforcing area, and the first-stage concrete reinforcing area is arranged between the reinforcing net and the tower drum body. The utility model has the advantages of reinforcing and supporting effect, reducing the phenomena of cracking of the outer surface of the concrete and falling of part of the concrete, and the like.

Description

Technical Field

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

[0002] As the demand for wind turbine power generation efficiency increases, the requirements for the width, height and weight of wind turbines also increase. As the supporting and energy-absorbing component of wind turbines, the seismic resistance of wind turbine towers will directly affect the service life and safe and stable operation of wind turbines. In order to increase the installed capacity of wind turbines, the traditional way is to dismantle and rebuild the tower and tower foundation. This solution will cause waste of resources and environmental pollution during blasting and demolition.

[0003] To solve the above problems, the existing method is to improve the support and energy dissipation capacity of the wind turbine tower by setting a reinforcement structure outside the original tower. However, the spacing between the individual reinforcement components of the existing reinforcement structure is large, which cannot effectively support the concrete between the reinforcement components, and easily causes cracks on the outer surface of the concrete and partial concrete falling off. It cannot ensure the effective reinforcement of the wind turbine tower, making the wind turbine tower prone to buckling damage, the tower bearing capacity and seismic performance are poor, and the wind turbine generator set has a short service life and low reliability. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a wind power tower with a reinforcement function to enhance support effects and reduce the occurrence of cracking on the outer surface of concrete and partial concrete shedding.

[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is:

[0006] A wind power tower with a reinforcement function comprises a tower body and a concrete reinforcement, and also comprises a load-bearing frame which forms an integral load-bearing structure with the tower body, wherein the load-bearing frame comprises a plurality of fastening hoops tightly embraced outside the tower body, a plurality of vertical connecting rods which penetrate and connect the fastening hoops, a plurality of elastic adjustment rings tightly embraced outside the vertical connecting rods, and a reinforcement net tightly bonded to the concrete reinforcement, wherein the fastening hoops and the elastic adjustment rings are alternately arranged along the axial direction of the tower body; a plurality of the vertical connecting rods are arranged along the circumference of the fastening hoops; the reinforcement net is connected between adjacent fastening hoops; the concrete reinforcement comprises a primary concrete reinforcement area, and the primary concrete reinforcement area is arranged between the reinforcement net and the tower body.

[0007] As a further improvement of the above technical solution:

[0008] A secondary casting gap is provided between the primary concrete reinforcement area and the fastening hoop located above; a plurality of first reinforcement sleeves are arranged at intervals along the axial direction of the tower body on the outer side of the fastening hoop, and the concrete reinforcement part also includes a secondary concrete reinforcement area, and the secondary concrete reinforcement area is filled in the secondary casting gap, the gap between the first reinforcement sleeve and the fastening hoop, and the gap between adjacent first reinforcement sleeves.

[0009] A second reinforcement sleeve is provided outside the first reinforcement sleeve, and the length of the second reinforcement sleeve is the same as the length of the tower body; the concrete reinforcement member also includes a three-level concrete reinforcement area, and the three-level concrete reinforcement area is provided between the first reinforcement sleeve and the second reinforcement sleeve.

[0010] The elastic adjustment ring includes a tightening spring, an elastic mounting sleeve and a spring adjusting piece, wherein the elastic mounting sleeve holds the vertical connecting rod tightly; the tightening spring is wound around the elastic mounting sleeve; both ends of the tightening spring are connected to the spring adjusting piece, and the tightening force applied to the elastic mounting sleeve by the tightening spring is adjusted by the spring adjusting piece.

[0011] The spring adjusting member comprises an installation shell, two spring connecting parts and two bolt and nut adjusting members, wherein the bolts of the two bolt and nut adjusting members are respectively installed on the two end parts of the installation shell through a threaded connecting sleeve; the two ends of the spring connecting part are respectively connected to the fastening spring and the bolts on the corresponding side; the nuts of the bolt and nut adjusting members are arranged outside the installation shell.

[0012] The elastic mounting sleeve is provided with a plurality of spring mounting grooves having the same number as the fastening springs. The plurality of spring mounting grooves are arranged at intervals along the length direction of the elastic mounting sleeve, and the fastening springs are wound in the spring mounting grooves.

[0013] The elastic mounting sleeve consists of two semi-annular mounting parts.

[0014] A flow gap is reserved between the reinforcing net and the elastic adjustment ring for the concrete reinforcement member to pass through.

[0015] The reinforcing net is fixed to the vertical connecting rod or the fastening hoop.

[0016] The fastening clamp includes two semi-annular clamping parts which are plugged into each other. The plug-in positions of the two semi-annular clamping parts are provided with an adjustment gap for controlling the stress applied by the fastening clamp to the cylinder. The adjustment gap is adjusted by a fastener provided at the plug-in positions of the semi-annular clamping parts.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The utility model is provided with a load-bearing frame outside the tower body, and the load-bearing frame includes a plurality of fastening hoops tightly embraced outside the tower body, a plurality of vertical connecting rods penetrating and connecting the fastening hoops, a plurality of elastic adjustment rings tightly embraced outside the vertical connecting rods, and a reinforcing net tightly bonded to the concrete reinforcement, which forms a structure that is synchronized with the tower body and bears overall force outside the tower body, so that the wind power tower as a whole has better coordination.

[0019] At the same time, under the action of the elastic adjustment ring, the vertical connecting rod provides a clamping force for the fastening hoop to clamp the tower body, so that the fastening hoop and the tower body form a more stable overall force-bearing structure, which further improves the strength of the wind turbine tower; and the elastic adjustment ring can adjust the tightness according to actual conditions, so that the clamping force between the fastening hoop and the tower body can be controlled, which allows the fastening hoop to be adjusted according to the tower body and actual reinforcement requirements. It has strong versatility while ensuring the reinforcement effect.

[0020] At the same time, the combination of the elastic adjustment ring and the reinforcement net further increases the contact area between the load-bearing frame and the concrete reinforcement. At this time, the solidification bonding force between the load-bearing frame and the concrete reinforcement is enhanced, which effectively solves the problem of small contact area between the concrete reinforcement and the reinforced components and inability to effectively support. The concrete reinforcement is tightly connected to the tower body and the load-bearing frame, thereby avoiding cracking of the outer surface of the concrete and partial falling off of the concrete, ensuring the reliable reinforcement of the wind turbine tower, and making the wind turbine tower have high bearing capacity and good seismic performance.

[0021] The fastening clamps and elastic adjustment rings are arranged alternately along the axial direction of the tower body, multiple vertical connecting rods are arranged along the circumference of the fastening clamps, the reinforcing net is connected between adjacent fastening clamps, and the concrete reinforcement includes a primary concrete reinforcement area, which is arranged between the reinforcing net and the tower body. It has a simple structure, compact layout, small occupied volume, and is easy to construct, which is convenient for reinforcing old wind turbines and wind turbines in operation. The primary concrete reinforcement area is tightly connected to the tower body and the load-bearing frame, which further improves the strength and rigidity of the tower, and improves the service life and safety reliability of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the utility model (the primary concrete reinforcement area is not shown);

[0024] Figure 2 yes Figure 1 The main view;

[0025] Figure 3It is a schematic diagram of a half-section structure of Example 1 of the utility model (the primary concrete reinforcement area is not shown);

[0026] Figure 4 It is a three-dimensional structural schematic diagram of Example 1 of the utility model (showing the primary concrete reinforcement area);

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of Example 2 of the utility model (the secondary concrete reinforcement area is not shown);

[0028] Figure 6 yes Figure 5 The main view;

[0029] Figure 7 It is a schematic diagram of the location of the primary concrete reinforcement area of ​​Example 2 of the utility model (showing the secondary pouring gap);

[0030] Figure 8 It is a front view of Example 2 of the utility model (showing the secondary concrete reinforcement area);

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of embodiment 3 of the utility model;

[0032] Fig.10 It is a three-dimensional structural schematic diagram of the elastic adjustment ring of the utility model;

[0033] Fig.11 It is a structural schematic diagram of the spring adjusting member of the utility model.

[0034] The symbols in the figure represent:

[0035] 1. Tower body; 2. Concrete reinforcement; 21. Primary concrete reinforcement area; 22. Secondary concrete reinforcement area; 23. Third-level concrete reinforcement area; 3. Load-bearing skeleton; 31. Fastening clamp; 311. Semi-circular clamping part; 312. Adjustment gap; 32. Vertical connecting rod; 33. Elastic adjustment ring; 331. Fastening spring; 332. Elastic mounting sleeve; 3321. Spring mounting groove; 3322. Semi-circular mounting part; 333. Spring adjustment piece; 3331. Mounting shell; 3332. Spring connecting part; 3333. Bolt; 3334. Nut; 3335. Threaded connecting sleeve; 34. Reinforcement mesh; 4. Secondary casting gap; 5. First reinforcement sleeve; 6. Second reinforcement sleeve. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments of the specification, but the protection scope of the present invention is not limited thereby.

[0037] Example 1

[0038] like Figures 1 to 4 As shown, the wind power tower with reinforcement function of this embodiment includes a tower body 1, a concrete reinforcement 2 and a force-bearing frame 3. The utility model is provided with a force-bearing frame 3 outside the tower body 1, which forms a structure that is synchronized with the tower body 1 and bears force as a whole outside the tower body 1, so that the wind power tower as a whole has better coordination. In this embodiment, the force-bearing frame 3 includes a plurality of fastening hoops 31, a plurality of vertical connecting rods 32, a plurality of elastic adjustment rings 33 and a plurality of reinforcing nets 34. Among them, a plurality of fastening hoops 31 are tightly clamped outside the tower body 1; a plurality of vertical connecting rods 32 penetrate and connect each fastening hoops 31, and a plurality of vertical connecting rods 32 are arranged along the circumference of the fastening hoops 31; a plurality of elastic adjustment rings 33 are tightly clamped outside the vertical connecting rods 32; the fastening hoops 31 and the elastic adjustment rings 33 are alternately arranged along the axial direction of the tower body 1. It has a simple structure, a compact layout, a small occupied volume, and is easy to construct, which is convenient for reinforcing old wind turbines and wind turbines in operation.

[0039] The vertical connecting rod 32 provides a clamping force for the fastening clamp 31 to clamp the tower body 1 under the action of the elastic adjustment ring 33, so that the fastening clamp 31 and the tower body 1 form a more stable overall force-bearing structure, which further improves the strength of the wind turbine tower; and the elastic adjustment ring 33 can be adjusted in tightness according to actual conditions, so that the clamping force between the fastening clamp 31 and the tower body 1 can be controlled, which allows the fastening clamp 31 to be adjusted according to the tower body 1 and actual reinforcement requirements, while ensuring the reinforcement effect, it has strong versatility.

[0040] At the same time, the reinforcing mesh 34 is connected between adjacent fastening hoops 31 , the concrete reinforcement member 2 includes a primary concrete reinforcement area 21 , the primary concrete reinforcement area 21 is arranged between the reinforcing mesh 34 and the tower body 1 , and the reinforcing mesh 34 is tightly bonded to the concrete reinforcement member 2 .

[0041] At this time, the combination of the elastic adjustment ring 33 and the reinforcing net 34 further increases the contact area between the load-bearing frame 3 and the concrete reinforcement 2. At this time, the solidification bonding force between the load-bearing frame 3 and the concrete reinforcement 2 is enhanced, which effectively solves the problem that the concrete reinforcement 2 has a small contact area with the reinforcement component and cannot effectively support it. The concrete reinforcement 2 is tightly connected to the tower body 1 and the load-bearing frame 3, thereby avoiding cracking of the outer surface of the concrete and the occurrence of partial concrete falling off, further improving the strength and rigidity of the tower, and improving the service life and safety and reliability of the tower, so that the wind power tower has high bearing capacity and good seismic performance.

[0042] Furthermore, if Fig.10As shown, the elastic adjustment ring 33 includes a fastening spring 331, an elastic mounting sleeve 332 and a spring adjusting member 333. The elastic mounting sleeve 332 holds the vertical connecting rod 32 tightly, so as to provide a clamping force for the fastening clamp 31 to hold the tower body 1 tightly through the vertical connecting rod 32; the fastening spring 331 is wound around the elastic mounting sleeve 332; the two ends of the fastening spring 331 are connected to the spring adjusting member 333, and the tightness of the fastening spring 331 is adjusted through the spring adjusting member 333, so that the clamping force of the fastening clamp 31 on the tower body 1 is controllable, and the installation and adjustment of the fastening spring 331 is convenient and efficient, and the structure is simple and compact, and the space occupied is small.

[0043] Furthermore, if Fig.11 As shown, the spring adjustment member 333 includes a mounting housing 3331, two spring connection parts 3332 and two bolt and nut adjustment members. Among them, the bolts 3333 of the two bolt and nut adjustment members are respectively installed on the two ends of the mounting housing 3331 through a threaded connection sleeve 3335; the two ends of the spring connection part 3332 are respectively connected to the fastening spring 331 and the bolts 3333 on the corresponding side; the nuts 3334 of the bolt and nut adjustment members are arranged outside the mounting housing 3331. At this time, the bolts 3333 can be driven to move axially by rotating the nuts 3334, so that the fastening spring 331 can be brought to adjust the tightness more reliably and stably through the spring connection part 3332, and the adjustment is convenient, efficient, simple in structure and low in cost.

[0044] Preferably, the elastic mounting sleeve 332 is provided with a plurality of spring mounting grooves 3321, the number of the spring mounting grooves 3321 is the same as the number of the fastening springs 331, the plurality of spring mounting grooves 3321 are arranged at intervals along the length direction of the elastic mounting sleeve 332, and the fastening springs 331 are wound in the spring mounting grooves 3321. The provision of the spring mounting grooves 3321 can effectively limit the position of the fastening springs 331, prevent adjacent fastening springs 331 from interfering with each other, and ensure that the elastic adjustment ring 33 applies a reliable and effective force to the vertical connecting rod 32. Further, the elastic mounting sleeve 332 is composed of two semi-annular mounting portions 3322 to facilitate the installation of the elastic mounting sleeve 332.

[0045] Preferably, a flow gap is left between the reinforcing mesh 34 and the elastic adjustment ring 33, so that the concrete reinforcement 2 can flow into the gap between the elastic adjustment ring 33 and the fastening hoop 31 through the flow gap, thereby improving the pouring efficiency.

[0046] In this embodiment, the reinforcing net 34 is fixed to the vertical connecting rod 32, and the fixing method can be binding or welding. In other embodiments, the reinforcing net 34 can be fixed to the fastening hoop 31 as long as it does not move during concrete pouring.

[0047] Furthermore, if Figures 1 to 4As shown, the fastening clamp 31 includes two semi-annular clamping parts 311 which are plugged into each other. The plugging positions of the two semi-annular clamping parts 311 are provided with adjustment gaps 312. The adjustment gaps 312 are adjusted by fasteners provided at the plugging positions of the semi-annular clamping parts 311. While ensuring that the fastening clamp 31 effectively clamps the tower body 1, it ensures that the stress applied to the tower body 1 by the fastening clamp 31 is adjustable, which better ensures the reliable and safe reinforcement of the tower. At the same time, the adjustment through the fastener adjustment is convenient and the operation efficiency is high.

[0048] Example 2

[0049] Figures 5 to 8 Another embodiment of a wind turbine tower with a reinforcement function of the utility model is shown. This embodiment is basically the same as the first embodiment, except that a secondary casting gap 4 is provided between the primary concrete reinforcement area 21 and the fastening hoop 31 located above; a plurality of first reinforcement sleeves 5 are provided on the outside of the fastening hoop 31, and the plurality of first reinforcement sleeves 5 are arranged at intervals along the axial direction of the tower body 1; the concrete reinforcement member 2 also includes a secondary concrete reinforcement area 22. The secondary concrete reinforcement area 22 is filled in the secondary casting gap 4, the gap between the first reinforcement sleeve 5 and the fastening hoop 31, and the gap between adjacent first reinforcement sleeves 5. The combination of the first reinforcement sleeve 5 and the secondary concrete reinforcement area 22 in this embodiment further increases the overall thickness of the tower, and further improves the reliable and effective reinforcement of the tower.

[0050] At the same time, a secondary pouring gap 4 is provided between the primary concrete reinforcement area 21 and the fastening hoop 31 located above, so that after the first concrete pouring is completed and solidified (i.e. after the primary concrete reinforcement area 21 is poured), when the second concrete pouring is carried out, the concrete first fills the secondary pouring gap 4 above the primary concrete reinforcement area 21, and overflows after the secondary pouring gap 4 is filled, and fills the gap between the reinforcing net 34 and the first reinforcement sleeve 5, so that the secondary concrete reinforcement area 22 is more tightly bonded and fixed to the primary concrete reinforcement area 21 through the setting of the secondary pouring gap 4 during pouring, effectively reducing the shrinkage cracking phenomenon caused by excessive pouring volume and area of ​​concrete, making the connection strength of the concrete reinforcement 2 higher, the overall reinforcement performance of the tower tube is better, the durability is better, and the construction is convenient and efficient.

[0051] In this embodiment, the multiple first reinforcement sleeves 5 are arranged at intervals along the axial direction of the tower body 1, and the secondary concrete reinforcement area 22 fills the gap between adjacent first reinforcement sleeves 5, thereby further preventing shrinkage cracking caused by pouring a large amount of concrete at one time and ensuring the reinforcement effect.

[0052] At the same time, before pouring the secondary concrete reinforcement area 22, a mold sleeve is set outside the first reinforcement sleeve 5 to ensure that the surface of the secondary concrete reinforcement area 22 at the gap between adjacent first reinforcement sleeves 5 is flush with the surface of the first reinforcement sleeve 5. After the secondary concrete reinforcement area 22 is poured and solidified, the mold sleeve is removed.

[0053] Example 3

[0054] Fig. 9 Another embodiment of a wind turbine tower with a reinforcement function of the utility model is shown. This embodiment is basically the same as Embodiment 2, except that a second reinforcement sleeve 6 is provided outside the first reinforcement sleeve 5 of this embodiment, and the length of the second reinforcement sleeve 6 is the same as the length of the tower body 1; the concrete reinforcement part 2 also includes a three-level concrete reinforcement area 23, and a three-level concrete reinforcement area 23 is provided between the first reinforcement sleeve 5 and the second reinforcement sleeve 6.

[0055] In this embodiment, the third-level concrete reinforcement area 23 between the first reinforcement sleeve 5 and the second reinforcement sleeve 6 is reinforced again on the basis of the second-level concrete reinforcement area 22. When a certain level of concrete reinforcement area 21 cracks due to uncontrollable factors, another level of concrete reinforcement area 21 can play a role of supplementary reinforcement.

[0056] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wind power tower with reinforcement function, comprising a tower body and a concrete reinforcement member, characterized in that: It also includes a load-bearing skeleton that forms an integral load-bearing structure with the tower body, and the load-bearing skeleton includes a plurality of fastening hoops tightly embraced outside the tower body, a plurality of vertical connecting rods penetrating and connecting the fastening hoops, a plurality of elastic adjustment rings tightly embraced outside the vertical connecting rods, and a reinforcing net tightly bonded to the concrete reinforcement member, wherein the fastening hoops and the elastic adjustment rings are alternately arranged along the axial direction of the tower body; a plurality of the vertical connecting rods are arranged along the circumference of the fastening hoops; the reinforcing net is connected between adjacent fastening hoops; the concrete reinforcement member includes a primary concrete reinforcement area, and the primary concrete reinforcement area is arranged between the reinforcing net and the tower body.

2. The wind turbine tower with reinforcement function according to claim 1, characterized in that: A secondary casting gap is provided between the primary concrete reinforcement area and the fastening hoop located above; a plurality of first reinforcement sleeves are arranged at intervals along the axial direction of the tower body on the outer side of the fastening hoop, and the concrete reinforcement part also includes a secondary concrete reinforcement area, and the secondary concrete reinforcement area is filled in the secondary casting gap, the gap between the first reinforcement sleeve and the fastening hoop, and the gap between adjacent first reinforcement sleeves.

3. The wind turbine tower with reinforcement function according to claim 2, characterized in that: A second reinforcement sleeve is provided outside the first reinforcement sleeve, and the length of the second reinforcement sleeve is the same as the length of the tower body; the concrete reinforcement member also includes a three-level concrete reinforcement area, and the three-level concrete reinforcement area is provided between the first reinforcement sleeve and the second reinforcement sleeve.

4. The wind turbine tower with reinforcement function according to any one of claims 1 to 3, characterized in that: The elastic adjustment ring includes a tightening spring, an elastic mounting sleeve and a spring adjusting piece, wherein the elastic mounting sleeve holds the vertical connecting rod tightly; the tightening spring is wound around the elastic mounting sleeve; both ends of the tightening spring are connected to the spring adjusting piece, and the tightening force applied to the elastic mounting sleeve by the tightening spring is adjusted by the spring adjusting piece.

5. The wind turbine tower with reinforcement function according to claim 4, characterized in that: The spring adjusting member comprises an installation shell, two spring connecting parts and two bolt and nut adjusting members, wherein the bolts of the two bolt and nut adjusting members are respectively installed on the two end parts of the installation shell through a threaded connecting sleeve; the two ends of the spring connecting part are respectively connected to the fastening spring and the bolts on the corresponding side; the nuts of the bolt and nut adjusting members are arranged outside the installation shell.

6. The wind turbine tower with reinforcement function according to claim 4, characterized in that: The elastic mounting sleeve is provided with a plurality of spring mounting grooves having the same number as the fastening springs. The plurality of spring mounting grooves are arranged at intervals along the length direction of the elastic mounting sleeve, and the fastening springs are wound in the spring mounting grooves.

7. The wind turbine tower with reinforcement function according to claim 6, characterized in that: The elastic mounting sleeve consists of two semi-annular mounting parts.

8. The wind turbine tower with reinforcement function according to any one of claims 1 to 3, characterized in that: A flow gap is reserved between the reinforcing net and the elastic adjustment ring for the concrete reinforcement member to pass through.

9. The wind turbine tower with reinforcement function according to claim 8, characterized in that: The reinforcing net is fixed to the vertical connecting rod or the fastening hoop.

10. The wind turbine tower with reinforcement function according to any one of claims 1 to 3, characterized in that: The fastening clamp includes two semi-annular clamping parts which are plugged into each other. The plug-in positions of the two semi-annular clamping parts are provided with an adjustment gap for controlling the stress applied by the fastening clamp to the cylinder. The adjustment gap is adjusted by a fastener provided at the plug-in positions of the semi-annular clamping parts.

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