Pre-assembled structure of dry-type transformer for wind power tower

Abstract

This utility model relates to the technical field of transformer installation, and in particular to a pre-installed structure for a dry-type transformer in a wind power tower, comprising: two uprights, both buried in the ground and perpendicular to the horizontal ground; two column clamping assemblies, each mounted on one of the two uprights; two supporting steel beams, fixedly mounted on the two column clamping assemblies, symmetrically arranged at both ends of the supporting steel beams; and a transformer fixing mechanism, mounted on the two supporting steel beams, for fixing the transformer. Each column clamping assembly includes: a first clamping rod, the top of which is bolted to one end of each of the two supporting steel beams; a first clamping hoop, fitted onto the upright and bolted to both ends of the first clamping rod; two connecting pieces, symmetrically fixedly mounted on the first clamping rod; and a second clamping rod, fixedly connected to the two connecting pieces.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer installation, and in particular to a pre-installation structure for a dry-type transformer for wind power generation towers. Background Technology

[0002] With the continued growth in global demand for clean energy, wind power, as a green and environmentally friendly renewable energy source, has been widely applied and rapidly developed. In wind power systems, dry-type transformers, as key equipment for power conversion and transmission, directly affect the operational efficiency and safety of the entire wind power system due to the rationality and stability of their installation structure.

[0003] Traditional installation methods for dry-type transformers on wind turbine towers typically involve direct on-site fixing, installing the transformer directly inside the tower or on the foundation at the bottom of the tower. This method presents several problems. Firstly, the on-site installation process is complex, requiring substantial construction equipment and manpower, resulting in a long construction period and high installation costs. Secondly, due to the often harsh environments in which wind power generation occurs, such as strong winds, high humidity, and large temperature differences, traditional fixing methods cannot guarantee the stability of the transformer during long-term operation. This can easily lead to loosening, displacement, and other issues, affecting the normal operation of the transformer and even causing safety accidents. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pre-installed structure for a dry-type transformer for wind power towers that can simplify the on-site installation process and improve the installation quality and stability.

[0005] The pre-assembled structure of the dry-type transformer for wind power tower of this utility model includes:

[0006] Two uprights, both of which are buried in the ground and are perpendicular to the horizontal ground;

[0007] Two column clamping assemblies are respectively installed on two uprights;

[0008] Two supporting steel beams are fixedly installed on two column clamping assemblies, which are symmetrically arranged at both ends of the supporting steel beams.

[0009] The transformer fixing mechanism is set on two supporting steel beams and is used to fix the transformer.

[0010] The column-holding assembly includes:

[0011] The first support pole is fixedly connected at its top to one end of the two supporting steel beams by bolts.

[0012] The first clamp is installed on the upright, and both ends of the first clamp are fixedly connected to the first upright by bolts.

[0013] Two connecting pieces are symmetrically and fixedly installed on the first support pole;

[0014] The second support rod is fixedly connected to two connecting plates;

[0015] The second clamp is installed on the upright, and both ends of the second clamp are fixedly connected to the second upright by bolts.

[0016] As a preferred embodiment of this utility model, both the first clamp and the second clamp have anti-slip protrusions on their inner sidewalls.

[0017] As a preferred embodiment of this utility model, the transformer fixing mechanism includes:

[0018] Two support plates are fixedly installed on two support steel beams;

[0019] Multiple support pads, with two support pads symmetrically fixedly installed on each support plate;

[0020] Two frame components, with four vertical tie tubes between the two frame components, and a lower frame component set on each support pad;

[0021] The framework components include:

[0022] Two frame steel beams are connected by two horizontal tie tubes. Each tie tube has two horizontal tie rods symmetrically installed at both ends. The two tie rods are inserted into the two frame steel beams respectively, and the tie rods are threaded with a first nut.

[0023] As a preferred embodiment of this utility model, each vertical tie tube is symmetrically provided with two vertical tie rods at both ends. The vertical tie rods are vertically inserted into the corresponding frame steel beams, and a second nut is threaded onto the vertical tie rod.

[0024] As a preferred embodiment of this utility model, the horizontal tie rod is threaded into the horizontal tie tube and is used to adjust the distance between the two horizontal frame steel beams.

[0025] As a preferred embodiment of this utility model, the vertical tie rod is threaded into the vertical tie tube and is used to adjust the distance between the two vertical frame steel beams.

[0026] As a preferred embodiment of this utility model, a shock-absorbing rubber pad is provided at the top of the support plate.

[0027] As a preferred embodiment of this utility model, each horizontal tie rod of the upper frame assembly is fitted with a lifting lug.

[0028] Compared with existing technologies, the advantages of this utility model are as follows: Traditional installation methods require extensive on-site construction operations, while this prefabricated structure completes most of the installation work in the factory or pre-assembly site in advance. On-site, only simple bolt fixing connections are required, greatly reducing the demand for on-site construction equipment and manpower, shortening the construction cycle, and reducing installation costs. The prefabricated structure is assembled in the factory or pre-assembly site, which can ensure the installation accuracy and quality of each component and avoid the impact of the on-site construction environment on the installation quality. At the same time, the column clamping assembly is doubly fixed to the upright through the first clamp and the second clamp, which enhances the stability of the entire structure and can effectively resist the influence of strong winds, vibrations, and other factors in the harsh environment where wind power generation is located. This reduces the possibility of transformer loosening or displacement, ensures the stability and normal operation of the transformer during long-term operation, and reduces the risk of safety accidents. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is an enlarged structural diagram of the column-mounted assembly;

[0031] Figure 3 This is an enlarged schematic diagram of the transformer fixing mechanism;

[0032] Figure 4 This is a schematic diagram of the vertical tie pipe installation structure;

[0033] The following are labels in the attached diagram: 1. Upright pole; 11. Supporting steel beam; 2. Column clamping assembly; 21. First pole clamp; 22. First clamp; 23. Connecting piece; 24. Second pole clamp; 25. Second clamp; 3. Transformer fixing mechanism; 31. Support plate; 32. Support pad; 33. Frame steel beam; 34. Horizontal tie tube; 35. Horizontal tie rod; 36. First nut; 37. Vertical tie tube; 38. Vertical tie rod; 39. Second nut; 3a. Lifting lug. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Reference Figures 1-4This embodiment provides a pre-assembled structure for a dry-type transformer on a wind power tower, comprising:

[0037] Two uprights 1, both uprights 1 are buried in the ground, and both uprights 1 are perpendicular to the horizontal ground;

[0038] Two column-holding assemblies 2 are respectively installed on two uprights 1;

[0039] Two supporting steel beams 11 are fixedly installed on two column clamping assemblies 2, and the two column clamping assemblies 2 are symmetrically arranged at both ends of the supporting steel beams 11.

[0040] The transformer fixing mechanism 3 is set on two supporting steel beams 11 and is used to fix the transformer.

[0041] The column-holding assembly 2 includes:

[0042] The first support pole 21 is fixedly connected at its top to one end of the two supporting steel beams 11 by bolts.

[0043] The first clamp 22 is fitted onto the upright 1, and both ends of the first clamp 22 are fixedly connected to the first upright 21 by bolts.

[0044] Two connecting pieces 23 are symmetrically fixedly installed on the first support rod 21;

[0045] The second support rod 24 is fixedly connected to the two connecting pieces 23;

[0046] The second clamp 25 is fitted onto the upright 1, and both ends of the second clamp 25 are fixedly connected to the second clamp 24 by bolts.

[0047] In this embodiment, at the pre-assembly site, the supporting steel beam 11 is fixedly connected to the top of the first clamping rod 21 in the column clamping assembly 2 by bolts, and the second clamping rod 24 is fixedly connected to the first clamping rod 21 by connecting piece 23, completing the pre-assembly assembly of the supporting steel beam and the column clamping assembly; then, the transformer is fixedly installed on the two supporting steel beams 11 by the transformer fixing mechanism 3, forming a complete pre-assembly unit; the pre-assembled unit is transported to the wind power tower site; since the pre-assembly unit has completed most of the assembly work, it can better protect the components during transportation and reduce damage to the components caused by bumps and collisions during transportation; after arriving at the site, the two uprights 1 are vertically buried in the ground; then, the two column clamping assemblies 2 in the pre-assembly unit are respectively fitted onto the two uprights 1, and the column clamping assemblies 2 and the uprights 1 are fixedly connected by bolts by the first clamping clamp 22 and the second clamping clamp 25, thereby completing the pre-assembly unit. The prefabricated structure is securely installed on pole 1, completing the installation of the dry-type transformer for the wind power tower. Traditional installation methods require extensive on-site construction, while this prefabricated structure completes most of the installation work in the factory or pre-installation site. On-site installation only requires simple bolt fixing, greatly reducing the need for on-site construction equipment and manpower, shortening the construction cycle, and lowering installation costs. The prefabricated structure is assembled in the factory or pre-installation site, ensuring the installation accuracy and quality of each component and avoiding the impact of the on-site construction environment on the installation quality. At the same time, the pole clamping assembly 2 is doubly fixed to pole 1 through the first clamp 22 and the second clamp 25, enhancing the stability of the entire structure. It can effectively resist the effects of strong winds, vibrations, and other factors in the harsh environment of wind power generation, reducing the possibility of transformer loosening or displacement, ensuring the stability and normal operation of the transformer during long-term operation, and reducing the risk of safety accidents.

[0048] As a preferred embodiment of the above technical solution, anti-slip protrusions are provided on the inner sidewalls of both the first clamp 22 and the second clamp 25.

[0049] In this embodiment, during the on-site installation of the dry-type transformer for the wind power tower, the clamp assembly 2 is fitted onto the upright 1. The first clamp 22 is fixedly connected to the first upright 21 at both ends by bolts, and the second clamp 25 is fixedly connected to the second upright 24 at both ends. During this process, the first clamp 22 and the second clamp 25 gradually tighten, and the anti-slip protrusions on their inner walls make close contact with the outer surface of the upright 1. As the bolt tightening torque increases, the anti-slip protrusions embed into the minute unevenness on the surface of the upright 1, thereby generating friction and ensuring a reliable connection between the clamp and the upright 1. The connection effectively prevents the clamp from sliding or loosening on the pole 1, thus ensuring the stability of the entire prefabricated structure, reducing the possibility of transformer displacement due to structural loosening, and ensuring long-term stable operation of the transformer; the wind turbine tower is subject to vibration caused by wind during operation, and the anti-slip protrusions can absorb and disperse some of the vibration energy, reducing the impact of vibration on the connection between the clamp and the pole 1; by increasing friction, the connection between the clamp and the pole 1 is made tighter, reducing the risk of connection failure due to vibration and improving the reliability of the entire prefabricated structure in a vibration environment.

[0050] Specifically, such as Figure 3 As shown, the transformer fixing mechanism 3 includes:

[0051] Two support plates 31 are fixedly installed on two support steel beams 11;

[0052] Multiple support pads 32 are symmetrically fixedly installed on each support plate 31;

[0053] Two frame components, with four vertical tie tubes 37 between the two frame components, and a lower frame component is set on each support pad 32;

[0054] The framework components include:

[0055] Two frame steel beams 33 are provided, and two horizontal tie tubes 34 are provided between the two frame steel beams 33. Two horizontal tie rods 35 are symmetrically provided at both ends of each horizontal tie tube 34. The two horizontal tie rods 35 are respectively inserted into the two frame steel beams 33, and the first nut 36 is threaded on the horizontal tie rod 35.

[0056] In this embodiment, at the pre-assembly site, two support plates 31 are first fixedly installed on two support steel beams 11, completing the initial assembly of the support plates and support steel beams; two support pads 32 are symmetrically fixedly installed on each support plate 31 to prepare for the subsequent installation of the frame components; the frame components are assembled by placing two frame steel beams 33, installing two horizontal tie tubes 34 between the two frame steel beams 33, symmetrically installing two horizontal tie rods 35 at both ends of each horizontal tie tube 34, and inserting the horizontal tie rods 35 into the two frame steel beams 33 respectively, and then fixing the horizontal tie rods 35 by threading the first nut 36, thereby completing the assembly of one frame component; the next frame component is placed on each support pad 32, and then four vertical tie tubes 37 are installed between the two frame components, thus completing the overall pre-assembly of the transformer fixing mechanism 3; the pre-assembled transformer fixing mechanism 3 is transported to the wind power tower site and connected with the already installed uprights 1 and column clamping components 2, etc.; the transformer is placed between the two frame components of the transformer fixing mechanism 3. By adjusting the structure of the frame assembly and the installation position of the vertical tie pipes 37, the transformer can be stably placed on the frame assembly, thus fixing the transformer. The support plate 31 and support pad 32 provide a stable support foundation for the frame assembly, allowing the frame assembly to be smoothly installed on the support steel beam 11. The frame assembly consists of frame steel beams 33, horizontal tie pipes 34, horizontal tie rods 35, etc. The tightness of the frame assembly can be adjusted by the cooperation of the horizontal tie rods 35 and the first nut 36, enhancing the overall structural strength of the frame assembly. The four vertical tie pipes 37 set between the two frame assemblies further increase the stability of the entire fixing mechanism, effectively resisting the influence of strong winds, vibrations, and other factors in the harsh environment of wind power generation, reducing the possibility of the transformer shaking or displacement during operation, and ensuring the stable operation of the transformer. The transformer fixing mechanism 3 adopts a modular design, completing most of the assembly work in the pre-assembly stage. Only simple docking installation is required on site, greatly simplifying the transformer installation process and reducing on-site construction time and labor costs.

[0057] More specifically, such as Figure 4 As shown, each vertical tie tube 37 has two vertical tie rods 38 symmetrically arranged at both ends. The vertical tie rods 38 are vertically inserted into the corresponding frame steel beams 33, and a second nut 39 is threaded onto the vertical tie rods 38.

[0058] In this embodiment, the vertical tie rod 38 is vertically inserted into the frame steel beam 33 and fixed by the second nut 39, forming a stable connection between the vertical tie tube 37 and the two frame components. This effectively resists various external forces in the harsh environment of wind power generation, reduces the shaking and deformation of the transformer fixing mechanism 3 during operation, and improves the stability of the entire pre-assembled structure, thereby ensuring the stable operation of the transformer. During the pre-assembly stage, the design of the vertical tie rod 38 and the second nut 39 allows for convenient installation and adjustment of the connection between the vertical tie tube 37 and the frame components. During on-site installation, if a connection problem is found, it can be quickly fine-tuned by rotating the second nut 39, without the need for complicated operations and tools, thus improving installation efficiency and accuracy.

[0059] Furthermore, the horizontal tie rod 35 is threaded into the horizontal tie tube 34 to adjust the spacing between the two horizontal frame steel beams 33;

[0060] In this embodiment, the threaded insertion of the horizontal tie rod 35 into the horizontal tie tube 34 allows for flexible adjustment of the spacing between the two frame steel beams 33. This adapts to the installation requirements of transformers of different specifications, as well as spacing changes caused by manufacturing errors or variations in installation conditions, thus improving installation accuracy and adaptability. The spacing can be easily adjusted by rotating the horizontal tie rod 35 without the need for complex tools or operations, simplifying the installation process and reducing on-site construction time and labor costs. After the spacing is adjusted, the horizontal tie rod 35 is fixed by the first nut 36, ensuring a stable connection between the two frame steel beams 33. This effectively resists various external forces in the harsh environment of wind power generation, improving the stability of the entire pre-assembled structure.

[0061] Furthermore, the vertical tie rod 38 is threaded into the vertical tie tube 37 and is used to adjust the spacing between the two vertical frame steel beams 33;

[0062] In this embodiment, the vertical tie rod 38 is threaded into the vertical tie tube 37, allowing for flexible adjustment of the vertical spacing between the two frame components. This adapts to the installation requirements of transformers of different specifications, as well as spacing changes due to manufacturing errors or variations in installation conditions, thus improving installation accuracy and adaptability. The spacing can be easily adjusted by rotating the vertical tie rod 38, eliminating the need for complex tools or operations, simplifying the installation process and reducing on-site construction time and labor costs. After adjusting the spacing, the vertical tie rod 38 is fixed using the second nut 39, ensuring a stable connection between the two frame components. This effectively resists various external forces in the harsh environment of wind power generation, improving the stability of the entire pre-assembled structure.

[0063] Furthermore, such as Figure 3 As shown, a shock-absorbing rubber pad is provided at the top of the support plate 31;

[0064] In this embodiment, the wind turbine tower will vibrate in harsh environments such as strong winds, and the transformer itself will also vibrate during operation. The vibration damping pads can effectively absorb and buffer this vibration energy, reduce the impact of vibration on the transformer, and reduce problems such as loosening and wear of internal transformer components caused by vibration, thereby extending the service life of the transformer. By reducing the impact of vibration on the transformer, the stability of the transformer during operation can be guaranteed. A stable operating environment helps to improve the power conversion and transmission efficiency of the transformer, reduce power loss and performance fluctuations caused by vibration, and ensure the operating efficiency and stability of the entire wind power generation system. Vibration is often accompanied by noise generation. While absorbing and buffering vibration, the vibration damping pads can also reduce the noise generated by vibration, reduce the impact on the surrounding environment and people, and improve the environmental friendliness and comfort of the wind power generation system.

[0065] Furthermore, such as Figure 3 As shown, each horizontal tie rod 35 of the upper frame component is fitted with a lifting lug 3a;

[0066] In this embodiment, the lifting lug 3a allows the pre-assembled structure to be easily connected to the lifting equipment during transportation and installation, improving the efficiency and safety of lifting and transportation; it avoids problems such as lifting difficulties and structural damage caused by the lack of suitable lifting points, and reduces construction time and labor costs; during on-site installation, the lifting lug 3a allows for more precise control of the position of the upper frame components, facilitating accurate docking with the lower support structure and other components; it helps improve the installation accuracy of the entire pre-assembled structure and ensures the stability and reliability of the transformer fixing mechanism 3.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pre-assembly structure of a wind power tower dry-type transformer, characterized in that, include: Two uprights, both of which are buried in the ground and both of which are perpendicular to the horizontal ground; Two column-holding assemblies are respectively mounted on the two uprights; Two supporting steel beams are fixedly installed on two column clamping assemblies, and the two column clamping assemblies are symmetrically arranged at both ends of the supporting steel beams; A transformer fixing mechanism is installed on the two supporting steel beams for fixing the transformer; The column-holding assembly includes: The first support pole is fixedly connected at its top to one end of the two supporting steel beams by bolts. The first clamp is fitted onto the upright, and both ends of the first clamp are fixedly connected to the first upright by bolts. Two connecting pieces are symmetrically and fixedly installed on the first support pole; The second support rod is fixedly connected to the two connecting pieces; The second clamp is fitted onto the upright, and both ends of the second clamp are fixedly connected to the second upright by bolts.

2. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 1, characterized in that, Both the first clamp and the second clamp have anti-slip protrusions on their inner sidewalls.

3. The pre-assembled structure of the dry-type transformer for wind power generation towers as described in claim 1, characterized in that, The transformer fixing mechanism includes: Two support plates are fixedly installed on the two support steel beams; Multiple support pads, with two support pads symmetrically fixedly installed on each of the support plates; Two frame components, with four vertical tie tubes between the two frame components, and a lower frame component is mounted on each of the support pads; The framework components include: Two frame steel beams are provided, and two horizontal tie tubes are provided between the two frame steel beams. Two horizontal tie rods are symmetrically provided at both ends of each horizontal tie tube. The two horizontal tie rods are respectively inserted into the two frame steel beams, and a first nut is threaded on the horizontal tie rod.

4. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 3, characterized in that, Each of the vertical tie tubes is symmetrically provided with two vertical tie rods at both ends. The vertical tie rods are vertically inserted into the corresponding frame steel beams, and a second nut is threaded onto the vertical tie rod.

5. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 3, characterized in that, The horizontal tie rod is threaded into the horizontal tie tube and is used to adjust the spacing between the two horizontal frame steel beams.

6. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 4, characterized in that, The vertical tie rod is threaded into the vertical tie tube and is used to adjust the distance between the two vertical frame steel beams.

7. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 3, characterized in that, The top of the support plate is equipped with a shock-absorbing rubber pad.

8. The pre-assembled structure of the dry-type transformer for wind power towers as described in claim 3, characterized in that, Each of the horizontal tie rods of the frame assembly described above is fitted with a lifting lug.

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