Mounting structure for air cooling system of dry-type transformer

Abstract

The utility model discloses a mounting structure for an air cooling system of a dry-type transformer. The mounting structure comprises a high-voltage coil, a low-voltage coil and an iron core, a high-low-voltage coil air duct is reserved between the high-voltage coil and the low-voltage coil; an air channel between the iron core and the low-voltage coil is reserved between the low-voltage coil and the iron core; a plurality of fans are mounted on the base at the bottom of the coil and are symmetrically distributed on two sides of the high-voltage coil; and each fan is mounted on the corresponding triangular bracket, so that the fans mounted on the triangular brackets are inclined upwards, and cooling airflow generated by the fans flows towards the air duct between the high-voltage coil and the low-voltage coil and the air duct between the iron core and the low-voltage coil. After the air cooling system mounting structure is adopted, the air flow passing through the air channel between the high-voltage coil and the low-voltage coil of the transformer and the iron core can be changed by adjusting the air blowing position and the air blowing angle of the fan, the heat dissipation effect is improved, the phenomenon of uneven heat dissipation of the transformer is eliminated, and therefore the heat dissipation effect of the transformer is improved, and safe and reliable operation of the transformer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to an installation structure of an air cooling system of a dry-type transformer. Background Art

[0002] Existing transformers with voltage of 35kV and below and capacity of 25000kVA and below, such as Figure 1 As shown, at a certain temperature, the fan must be started to use strong air cooling. Since the fan is basically fixed by a bracket, the airflow generated by the fan is in a fixed direction. This fixed structure of air blowing cooling has a difference in wind direction angle. The flow of cooling air through the air duct between the high and low voltage coils and the air duct between the iron core and the low voltage coil is small, resulting in uneven heat dissipation, which leads to high operating temperature of the transformer, accelerated thermal aging of the insulation material, shortened transformer life and even transformer failure. If the operating temperature of the transformer is too high, after-sales service will be required, which increases the operating costs of the enterprise. Utility Model Content

[0003] The utility model aims to provide an installation structure of a dry-type transformer air cooling system, which increases the air flow through the transformer high and low voltage coils and iron core air ducts by changing the installation structure of the cooling fan, adjusting the fan blowing position and blowing angle, and improving the heat dissipation effect of the transformer, thereby ensuring the safety of transformer operation and increasing the transformer operation life.

[0004] In order to solve the above technical problems, the utility model provides a dry-type transformer air cooling system installation structure, including a high-voltage coil, a low-voltage coil and an iron core;

[0005] An air duct between the high-voltage coil and the low-voltage coil is reserved between the high-voltage coil and the low-voltage coil;

[0006] An air duct between the iron core and the low-voltage coil is left between the low-voltage coil and the iron core;

[0007] A plurality of fans are installed on a base at the bottom of the coil, and the plurality of fans are symmetrically distributed on both sides of the high-voltage coil;

[0008] Each of the fans is mounted on a corresponding triangular bracket, so that the fans mounted on the triangular bracket are tilted upward, so that the cooling airflow generated by the fans flows toward the air duct between the high and low voltage coils and the air duct between the iron core and the low voltage coil.

[0009] Preferably, the triangular bracket is detachably mounted on the base, and the blowing angle of the fan mounted on the triangular bracket can be changed by replacing the triangular bracket with different angles.

[0010] Preferably, a fan bracket is provided at the bottom of the fan, and is connected to the triangular bracket through the fan bracket.

[0011] Preferably, long waist holes are opened on both sides of the fan bracket, and the fan bracket is connected to the triangular bracket by bolts passing through the long waist holes, and the fan bracket can adjust the positions of the fan bracket and the fan along the long waist holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After adopting the installation structure of the dry-type transformer air cooling system of the utility model, the operation is simple, convenient and safe. The air flow through the air duct between the high and low voltage coils and the iron core of the transformer can be changed by adjusting the blowing position and blowing angle of the fan, thereby improving the heat dissipation effect and eliminating the uneven heat dissipation of the transformer, thereby improving the heat dissipation effect of the transformer, ensuring the safe and reliable operation of the transformer, reducing the quality risks caused by the thermal aging of the insulation material of the transformer, and can increase the normal operation life of the transformer, and effectively reduce the after-sales service cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the existing dry-type transformer fan installation;

[0015] Figure 2 This is a schematic diagram of the installation structure of the dry-type transformer air cooling system provided by the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the installation of a dry-type transformer fan provided by the utility model.

[0017] In the figure: 1. high-voltage coil; 2. low-voltage coil; 3. iron core; 4. air duct between high-voltage and low-voltage coils; 5. air duct between iron core and low-voltage coil; 6. base; 7. fan; 8. triangular bracket; 9. cooling airflow; 10. fan bracket. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0021] The utility model provides a dry-type transformer air cooling system installation structure, please refer to Figure 2 , including a high-voltage coil 1, a low-voltage coil 2 and an iron core 3; an air duct 4 between high and low voltage coils is left between the high-voltage coil 1 and the low-voltage coil 2; an air duct 5 between the iron core and the low-voltage coil is left between the low-voltage coil 2 and the iron core 3; a plurality of fans 7 are installed on a base 6 at the bottom of the coil, and the plurality of fans 7 are symmetrically distributed on both sides of the high-voltage coil 1; each of the fans 7 is installed on a corresponding triangular bracket 8, so that the fan 7 installed on the triangular bracket 8 is tilted upward, so that the cooling airflow 9 generated by the fan 7 flows toward the air duct 4 between high and low voltage coils and the air duct 5 between the iron core and the low-voltage coil.

[0022] Specifically, the triangular bracket 8 is detachably mounted on the base 6 , and the blowing angle of the fan 7 mounted on the triangular bracket 8 is changed by replacing the triangular bracket 8 with different angles.

[0023] Specifically, a fan bracket 10 is provided at the bottom of the fan 7, and is connected to the triangular bracket 8 through the fan bracket 10; and long waist holes are opened on both sides of the fan bracket 10, and the fan bracket 10 is connected to the triangular bracket 8 by bolts passing through the long waist holes, and the fan bracket 10 can adjust the positions of the fan bracket 10 and the fan 7 along the long waist holes.

[0024] After adopting the installation structure of the dry-type transformer air cooling system of the utility model, the operation is simple, convenient and safe. The air flow through the air duct between the high and low voltage coils and the iron core of the transformer can be changed by adjusting the blowing position and blowing angle of the fan, thereby improving the heat dissipation effect and eliminating the uneven heat dissipation of the transformer, thereby improving the heat dissipation effect of the transformer, ensuring the safe and reliable operation of the transformer, reducing the quality risks caused by the thermal aging of the insulation material of the transformer, and can increase the normal operation life of the transformer, effectively reducing the after-sales service cost of the product.

[0025] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A dry-type transformer air cooling system installation structure, characterized in that: It comprises a high-voltage coil (1), a low-voltage coil (2) and an iron core (3); An air duct (4) between the high-voltage coil (1) and the low-voltage coil (2) is left; An air duct (5) between the iron core and the low-voltage coil is left between the low-voltage coil (2) and the iron core (3); A plurality of fans (7) are installed on a base (6) at the bottom of the coil, and the plurality of fans (7) are symmetrically distributed on both sides of the high-voltage coil (1); Each of the fans (7) is mounted on a corresponding triangular bracket (8), so that the fans (7) mounted on the triangular bracket (8) are tilted upward, thereby allowing the cooling airflow (9) generated by the fans (7) to flow toward the air duct (4) between the high- and low-voltage coils and the air duct (5) between the iron core and the low-voltage coil.

2. The installation structure of a dry-type transformer air cooling system according to claim 1, characterized in that: The triangular bracket (8) is detachably mounted on the base (6), and the blowing angle of the fan (7) mounted on the triangular bracket (8) is changed by replacing the triangular bracket (8) with different angles.

3. The installation structure of a dry-type transformer air cooling system according to claim 2, characterized in that: A fan bracket (10) is provided at the bottom of the fan (7), and is connected to the triangular bracket (8) via the fan bracket (10).

4. A dry-type transformer air cooling system installation structure as claimed in claim 3, characterized in that: Long waist holes are provided on both sides of the fan bracket (10), and the fan bracket (10) is connected to the triangular bracket (8) by bolts passing through the long waist holes. The fan bracket (10) can adjust the positions of the fan bracket (10) and the fan (7) along the long waist holes.

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