Circulating heat dissipation structure of power transformer

Abstract

The utility model relates to a power transformer circulation heat dissipation structure which comprises an oil tank, an oil conservator is installed at the top of the oil tank, an oil inlet pipe is arranged between the oil conservator and the oil tank, a plurality of circulation heat dissipation pipes are installed on the two sides of the oil tank side by side, the circulation heat dissipation pipes are vertically installed, and the circulation heat dissipation pipes communicate with the oil tank. A water wheel used for pushing transformer oil to flow is further arranged in the circulating heat dissipation pipe, a center shaft is further arranged on the water wheel in a penetrating mode, and the center shaft is rotationally installed on the circulating heat dissipation pipe. The temperature of the top and the temperature of the bottom of transformer oil in the oil tank are different, and the arranged water wheel can push the transformer oil to circulate in the circulating heat dissipation pipe, so that heat can be dissipated to the outside, and heat dissipation is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of oil-immersed transformers, and in particular to a circulating heat dissipation structure of a power transformer. Background Art

[0002] The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three-dimensional wound core has three core columns arranged in an equilateral triangle, with no air gap in the magnetic circuit, tighter winding, and the three magnetic circuits are of the same length and the shortest. The cross-sectional area of ​​the core column is closer to a circle, so the performance is further improved, the loss is reduced, the noise is reduced, the three items are balanced, and the third harmonic component is reduced. This product is more suitable for urban and rural, industrial and mining enterprise power grid transformation, and is more suitable for combined transformers and prefabricated substation transformers.

[0003] However, the existing oil-immersed transformer has poor heat dissipation effect, and is prone to temperature rise in hot summer, which may cause explosion and other dangers. Therefore, those skilled in the art provide a power transformer circulation heat dissipation structure to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the present application provides a circulating heat dissipation structure of a power transformer.

[0005] The present application provides a power transformer circulating heat dissipation structure adopting the following technical solution:

[0006] A circulating heat dissipation structure of an electric transformer comprises an oil tank, an oil pillow is installed on the top of the oil tank, an oil inlet pipe is arranged between the oil tanks of the oil pillow, a plurality of circulating heat dissipation pipes are arranged in parallel on both sides of the oil tank, the circulating heat dissipation pipes are installed vertically, and the circulating heat dissipation pipes are connected to the oil tank, a water wheel for promoting the flow of transformer oil is also arranged in the circulating heat dissipation pipe, and a central shaft is also passed through the water wheel, and the central shaft is rotatably installed on the circulating heat dissipation pipe.

[0007] By adopting the above technical solution, transformer oil can be easily added to the oil tank through the oil pillow and the oil inlet pipe. At high temperatures, there will be a temperature difference between the top and bottom of the transformer oil in the oil tank, and the water wheel can promote the transformer oil to circulate in the circulating heat dissipation pipe, so that heat can be dissipated to the outside, which is convenient for heat dissipation.

[0008] Preferably, the central axes of the multiple water wheels on the same side of the oil tank are extended and butt-connected together, and a wind wheel is also sleeved on the central axis between two adjacent circulating heat dissipation pipes.

[0009] By adopting the above technical solution, the wind wheel can drive the wind wheel and the central axis to rotate when the external air flows, thereby rotating the water wheel.

[0010] Preferably, a waterproof bearing is installed at the position where the central axis passes through the circulating heat dissipation pipe, and the waterproof bearing is fixedly installed on the circulating heat dissipation pipe.

[0011] By adopting the above technical solution, the waterproof bearing can facilitate the central axis to be passed through the circulating heat dissipation pipe.

[0012] Preferably, the bottom of the oil tank is also connected to a bottom plate, and mounting plates for cooperative installation and fixation are installed on both sides of the bottom plate.

[0013] By adopting the above technical solution, the provided bottom plate and the mounting plate can facilitate the installation of the oil tank.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. Through the oil pillow and oil inlet pipe, transformer oil can be easily added into the oil tank. At high temperature, there will be a temperature difference between the top and bottom of the transformer oil in the oil tank, and the water wheel can promote the transformer oil to circulate in the circulating heat dissipation pipe, so as to dissipate heat to the outside world and facilitate heat dissipation.

[0016] 2. Through the wind wheel set, when the outside air flows, it will push the wind wheel and the central axis to rotate, and then rotate the water wheel, which is convenient for pushing the transformer oil to flow for heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an overall circulating heat dissipation structure of a power transformer in an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of a circulating heat dissipation pipe in a circulating heat dissipation structure of a power transformer in an embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of a wind wheel and a central axis in a circulating heat dissipation structure of a power transformer in an embodiment of the present application.

[0020] Explanation of the reference numerals: 1. Oil tank; 2. Oil pillow; 3. Oil inlet pipe; 4. Circulation heat dissipation pipe; 5. Water wheel; 6. Center axis; 7. Wind wheel; 8. Waterproof bearing; 9. Base plate; 10. Mounting plate. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 This application is described in further detail.

[0022] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0023] The present application embodiment discloses a circulating heat dissipation structure of a power transformer. Figure 1-3 A circulating heat dissipation structure of a power transformer includes an oil tank 1, an oil pillow 2 is installed on the top of the oil tank 1, and an oil inlet pipe 3 is arranged between the oil pillow 2 and the oil tank 1, a plurality of circulating heat dissipation pipes 4 are arranged in parallel on both sides of the oil tank 1, the circulating heat dissipation pipes 4 are installed vertically, and the circulating heat dissipation pipes 4 are connected with the oil tank 1, and a water wheel 5 for promoting the flow of transformer oil is also arranged in the circulating heat dissipation pipe 4, and a central shaft 6 is also penetrated on the water wheel 5, and the central shaft 6 is rotatably installed on the circulating heat dissipation pipe 4;

[0024] By means of the oil pillow 2 and the oil inlet pipe 3, transformer oil can be conveniently added into the oil tank 1. At high temperatures, there will be a temperature difference between the top and bottom of the transformer oil in the oil tank 1, and the water wheel 5 can promote the transformer oil to circulate in the circulating heat dissipation pipe 4, so that heat can be dissipated to the outside, facilitating heat dissipation.

[0025] In the present application, the central axes 6 on the multiple water wheels 5 on the same side of the oil tank 1 are extended and connected together, and a wind wheel 7 is also provided on the central axis 6 between two adjacent circulating heat dissipation tubes 4. When the external air flows, the wind wheel 7 and the central axis 6 are driven to rotate, thereby rotating the water wheel 5.

[0026] In the present application, a waterproof bearing 8 is installed at the position where the central axis 6 passes through the circulating heat dissipation pipe 4, and the waterproof bearing 8 is fixedly installed on the circulating heat dissipation pipe 4. Through the provided waterproof bearing 8, the central axis 6 can be conveniently passed through the circulating heat dissipation pipe 4.

[0027] In the present application, the bottom of the oil tank 1 is also connected to a base plate 9, and mounting plates 10 for cooperating in installation and fixing are installed on both sides of the base plate 9. The oil tank 1 can be conveniently installed through the provided base plate 9 and the mounting plate 10.

[0028] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] The implementation principle of a circulating heat dissipation structure of an electric transformer in an embodiment of the present application is as follows: when in use, the transformer oil in the oil tank 1 will gradually heat up as the electrical components work, and there will be a temperature deviation between the top and bottom of the transformer oil in the oil tank 1. The transformer oil with a lower temperature will flow to the bottom, and the transformer component is arranged at the bottom of the oil tank 1. The transformer oil in contact with the component will flow upward after heating, thereby causing the transformer oil to flow and exchange in the circulating heat dissipation pipe 4, and with the flow of external airflow, the wind wheel 7 will be driven to rotate, and the central axis 6 and the water wheel 5 can be rotated by the wind wheel 7. When the water wheel 5 rotates, the flow of the transformer oil can be accelerated, thereby facilitating rapid heat dissipation.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A circulating heat dissipation structure for a power transformer, comprising an oil tank (1), characterized in that: An oil pillow (2) is installed on the top of the oil tank (1), and an oil inlet pipe (3) is arranged between the oil pillow (2) and the oil tank (1). A plurality of circulating heat dissipation pipes (4) are installed in parallel on both sides of the oil tank (1). The circulating heat dissipation pipes (4) are installed vertically and are connected to the oil tank (1). A water wheel (5) for promoting the flow of transformer oil is also arranged in the circulating heat dissipation pipe (4), and a central shaft (6) is also passed through the water wheel (5). The central shaft (6) is rotatably installed on the circulating heat dissipation pipe (4).

2. A power transformer circulating heat dissipation structure according to claim 1, characterized in that: The central axes (6) on the multiple water wheels (5) on the same side of the oil tank (1) are extended and butt-connected together, and a wind wheel (7) is also sleeved on the central axis (6) between two adjacent circulating heat dissipation pipes (4).

3. A circulating heat dissipation structure for a power transformer according to claim 2, characterized in that: A waterproof bearing (8) is also installed at the position where the central axis (6) passes through the circulating heat dissipation pipe (4), and the waterproof bearing (8) is fixedly installed on the circulating heat dissipation pipe (4).

4. The circulating heat dissipation structure of a power transformer according to claim 1 is characterized in that: The bottom of the oil tank (1) is also connected to a bottom plate (9), and mounting plates (10) for cooperating with and fixing the bottom plate (9) are mounted on both sides of the bottom plate (9).

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