Dry-type transformer winding air channel structure

Abstract

The utility model relates to a kind of dry-type transformer winding air channel structure, belong to transformer technical field, including solid wood supporting plate, the upper end of the solid wood supporting plate is equipped with winding, the upper end of the winding is equipped with a pair of transverse limit channel steel of X staggered structure, the four corners of the transverse limit channel steel and solid wood supporting plate are all equipped with limit rod, the winding is equipped with several air channels from solid wood supporting plate to the upper end of winding, the air channel is composed of arc structure by several air channel rods.With the characteristics of simple structure, convenient operation and good use effect.Using splicing type air channel rod structure increases the heat dissipation area of air channel, and the length of air channel can be adjusted flexibly according to the size of winding, reducing material waste and simplifying installation process, improving efficiency.Splicing design allows only to replace the damaged section when local damage, reduces maintenance cost, avoids the waste of overall replacement.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a dry-type transformer winding air passage structure. Background Technology

[0002] In recent years, the domestic transformer industry has been highly competitive. While ensuring that the technical performance parameters of the dry-type transformers they manufacture meet national and industry standards, companies are focusing on cost reduction and optimization to reduce product costs, improve competitiveness, and enhance economic benefits.

[0003] The prior art, "Winding Air Channel Structure of Resin Insulated Dry-Type Transformer", application number CN202222959225.2, discloses a structure including a ring-shaped iron core, wherein the iron core is sleeved with windings, and the windings are provided with a low-voltage winding located on the inner side and a high-voltage winding located on the outer side of the low-voltage windings; the low-voltage windings are provided with low-pressure air channels and / or the high-voltage windings are provided with high-pressure air channels.

[0004] By adjusting the air duct structure of the resin-insulated dry-type transformer winding according to the different transformer capacities, at least one air duct is set on the axial direction of the dry-type transformer winding that requires heat dissipation. Through temperature rise verification calculations of the high-voltage winding and the low-voltage winding, corresponding air ducts are set at the corresponding layer positions of the winding to increase the heat dissipation area of ​​the winding and reduce the temperature rise of the winding. At the same time, the optimized structure reduces the amount of copper and iron core silicon steel sheets used, as well as reduces the DC resistance loss and no-load loss of the winding.

[0005] However, the winding air passage structure currently in use is an integrated structure, which requires the entire structure to be replaced when damaged, which is not only costly to repair, but also time-consuming and labor-intensive. Summary of the Invention

[0006] This invention primarily addresses the shortcomings of existing technologies by providing a dry-type transformer winding air duct structure, characterized by its simple structure, convenient operation, and excellent performance. The use of a modular air duct bar structure increases the air duct heat dissipation area, while allowing for flexible adjustment of the air duct length according to the winding dimensions, reducing material waste, simplifying the installation process, and improving efficiency. The modular design allows for replacement of only the damaged section in case of partial damage, reducing maintenance costs and avoiding the waste of replacing the entire unit.

[0007] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0008] A dry-type transformer winding air passage structure includes a solid wood support plate. A winding is provided at the upper end of the solid wood support plate. A pair of transverse limiting channel steels with an X-shaped staggered structure are provided at the upper end of the winding. Limiting rods are provided between the four corners of the transverse limiting channel steels and the solid wood support plate. Several air passages are provided inside the winding, extending from the solid wood support plate to the upper end of the winding. The air passages are composed of several air passage rods forming an arc-shaped structure.

[0009] Air channels, composed of air ducts, run through the windings for heat dissipation, ensuring that the heat generated during winding operation is quickly transferred to the outside. This optimizes the airflow path, allowing airflow to pass evenly through the windings and improving heat dissipation efficiency.

[0010] Preferably, the winding side is provided with a vertical limiting channel steel, and the vertical limiting channel steel is provided with limiting side plates on both sides for insertion and positioning with the winding.

[0011] Preferably, the airway rod is made of lightweight polytetrafluoroethylene (PTFE), which has high thermal conductivity and high temperature resistance.

[0012] Preferably, both ends of the limiting rod are provided with several locking nuts that are threadedly connected to the limiting rod.

[0013] Preferably, the solid wood support plate has four corner points at its lower end that are screwed onto wooden blocks. The solid wood support plate serves as a supporting structure for the windings, providing mechanical strength and conducting heat. The screw-on connection points at the four corners of the lower end of the solid wood support plate enhance the stability of the overall structure.

[0014] This invention can achieve the following effects:

[0015] This invention provides a dry-type transformer winding air duct structure, which, compared with existing technologies, features a simple structure, convenient operation, and good performance. It adopts a modular air duct bar structure, increasing the air duct heat dissipation area. Simultaneously, the air duct length can be flexibly adjusted according to the winding size, reducing material waste and simplifying the installation process, thus improving efficiency. The modular design allows for replacement of only the damaged section in case of partial damage, reducing maintenance costs and avoiding the waste of replacing the entire unit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the winding structure in this utility model.

[0019] Figure 4 This is a schematic diagram of the winding structure in this utility model.

[0020] In the diagram: 1. Winding; 2. Lateral limiting channel steel; 3. Limiting rod; 4. Locking nut; 5. Limiting side plate; 6. Solid wood support plate; 7. Sleeper block; 8. Vertical limiting channel steel; 9. Air passage; 10. Air passage rod. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] Example: Figure 1-4 As shown, a dry-type transformer winding air duct structure includes a solid wood support plate 6, with sleeper blocks 7 screwed to the four corners of the lower end of the solid wood support plate 6. A winding 1 is located at the upper end of the solid wood support plate 6, and six air ducts 9 extend from the solid wood support plate 6 to the upper end of the winding 1. Each air duct 9 is composed of an arc-shaped structure made of eight air duct rods 10, which are made of lightweight polytetrafluoroethylene (PTFE). A pair of horizontally oriented limiting channel steels 2 with an X-shaped staggered structure are located at the upper end of the winding 1. Limiting rods 3 are located between the four corners of the horizontally oriented limiting channel steels 2 and the solid wood support plate 6, and two locking nuts 4 are threadedly fitted onto each end of the limiting rods 3. Vertical limiting channel steels 8 are located on the sides of the winding 1, and limiting side plates 5 are inserted into and positioned on both sides of the vertically oriented limiting channel steels 8 to position the winding 1.

[0023] The air duct structure of this dry transformer winding achieves heat dissipation, limiting, and fixing functions through the following main components:

[0024] Solid wood support plate 6: It serves as a support structure for the windings and also conducts heat.

[0025] Air passage 9: runs through the winding and is used for heat dissipation. It is composed of air passage rods 10 forming an arc-shaped structure.

[0026] Limiting channel steel 2: It has an X-shaped staggered structure and is used to fix and limit the position of winding 1.

[0027] Limiting rod 3: works in conjunction with limiting channel steel 2 to enhance the fixing effect.

[0028] Locking nut 4: Used to lock the limit rod and ensure the stability of the structure.

[0029] Limiting side plate 5: Used for lateral positioning and fixing the winding.

[0030] In summary, this dry-type transformer winding air duct structure features simple structure, convenient operation, and good performance. The use of a modular air duct bar structure increases the air duct heat dissipation area, while the air duct length can be flexibly adjusted according to the winding size, reducing material waste, simplifying the installation process, and improving efficiency. The modular design allows for replacement of only the damaged section in case of partial damage, reducing maintenance costs and avoiding the waste of replacing the entire unit.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A dry-type transformer winding air passage structure, characterized in that: Includes a solid wood pallet (6), the upper end of which is provided with a winding (1), the upper end of which is provided with a pair of transverse limiting channel steels (2) in an X-shaped staggered structure, the four corners of which are provided with limiting rods (3) between the transverse limiting channel steels (2) and the solid wood pallet (6), the winding (1) is provided with several air passages (9) that pass through the solid wood pallet (6) to the upper end of the winding (1), the air passages (9) are composed of several air passage rods (10) forming an arc-shaped structure.

2. The dry-type transformer winding air passage structure according to claim 1, characterized in that: The winding (1) is provided with a vertical limiting channel steel (8) on its side, and the vertical limiting channel steel (8) is provided with limiting side plates (5) on both sides for insertion and positioning with the winding (1).

3. The dry-type transformer winding air passage structure according to claim 1, characterized in that: The airway rod (10) is made of lightweight polytetrafluoroethylene.

4. The dry-type transformer winding air passage structure according to claim 1, characterized in that: Both ends of the limiting rod (3) are provided with several locking nuts (4) that are threadedly connected to the limiting rod (3).

5. The dry-type transformer winding air passage structure according to claim 1, characterized in that: The solid wood pallet (6) is provided with sleeper blocks (7) at the four corners of its lower end, which are fixed with screws to the solid wood pallet (6).

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