An indoor transformer heat dissipation structure

Abstract

This utility model relates to an indoor transformer heat dissipation structure, including an insulated air duct box located inside the transformer room. The lower end of the insulated air duct box is fitted onto the transformer, and the upper end is connected to an exhaust fan located on the upper side of the transformer room roof. Insulated side plates are provided around the insulated air duct box, and insulating foam strips are provided around the upper part of the insulated air duct box, contacting the transformer room roof. An insulated support beam is provided inside the insulated air duct box, with one end of the insulating support beam fixed to a clamp on the corresponding side of the transformer, and the other end fixed to the corresponding side plate. This utility model utilizes the insulated air duct box located between the transformer and the transformer room roof to concentrate hot air, thereby improving heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transformers, specifically an indoor transformer heat dissipation structure. Background Technology

[0002] As transformer capacity continues to increase, the heat generated by indoor transformers during operation is also rising. If the heat generated inside the transformer cannot be conducted to the outside in a timely manner, it can lead to problems such as insulation aging, and in severe cases, even transformer failure or burnout, posing significant quality risks. Traditional heat dissipation methods for indoor transformers involve installing exhaust fans on the top or sides of the transformer room to transport the hot air generated by the transformer to the top space of the transformer room for exhaust. However, this traditional method has relatively low heat dissipation efficiency, and with the continuous increase in transformer capacity, heat can easily accumulate inside the transformer room.

[0003] With technological advancements, some new indoor transformer heat dissipation structures have emerged in existing technologies. For example, patent CN208257212U discloses a ventilation structure for a prefabricated substation and the prefabricated substation itself. This ventilation structure includes a ventilation cover for fixing to the top plate of the prefabricated substation, a support plate under the ventilation cover for supporting and fixing the ventilation cover, and heat dissipation holes on the support plate. The edge of the ventilation cover has a downward-bent rainproof eave to prevent rainwater from falling into the prefabricated substation through the heat dissipation holes. However, this structure primarily aims to improve the transformer's rain protection function, relying solely on heat dissipation holes for heat dissipation; the heat dissipation effect needs further improvement.

[0004] For example, patent CN207021559U discloses a heat dissipation system for a prefabricated substation. This system includes an exhaust fan installed on the top of the prefabricated substation, and heat dissipation holes are provided around the top of the substation. Additionally, the system has sloping heat dissipation channels installed on the roof of the substation. Excess heat inside the substation is dissipated through the exhaust fan to the heat dissipation holes and sloping heat dissipation channels. However, this heat dissipation system requires multiple sloping heat dissipation channels evenly distributed on the top of the prefabricated substation. It requires the exhaust fan to blow hot air in to achieve multi-channel heat dissipation, rather than concentrating heat at the exhaust fan for centralized heat dissipation. Utility Model Content

[0005] The purpose of this utility model is to provide an indoor transformer heat dissipation structure, which utilizes an insulated air duct box located between the transformer and the transformer room roof to concentrate hot air, thereby improving heat dissipation efficiency.

[0006] The objective of this utility model is achieved through the following technical solution: An indoor transformer heat dissipation structure includes an insulated air duct box located inside the transformer room. The lower end of the insulated air duct box is fitted onto the transformer, and the upper end is connected to an exhaust fan located on the upper side of the transformer room roof. The insulated air duct box is surrounded by insulated side plates, and the upper end of the insulated air duct box is surrounded by insulated foam strips that contact the transformer room roof. The insulated air duct box is equipped with a box fixing frame with insulated support longitudinal beams. One end of the insulated support longitudinal beams is fixed to the transformer clamp on the corresponding side, and the other end is fixedly connected to the insulated side plate on the corresponding side.

[0007] The insulated air duct box is equipped with a box support frame inside, and the box support frame includes box support longitudinal beams and box support transverse beams arranged vertically. Each insulating side plate is equipped with an insulating vertical beam, and the two ends of the box support longitudinal beams and the two ends of the box support transverse beams are respectively fixed to the corresponding insulating vertical beams.

[0008] The enclosure mounting frame includes a fixed vertical beam and a fixed support horizontal beam. The upper end of the fixed vertical beam is fixed to the upper side of the corresponding enclosure support longitudinal beam, and the lower end is fixed to the upper side of the corresponding insulating support longitudinal beam. The lower side of the insulating support longitudinal beam is fixed to the upper clamp of the transformer on the corresponding side. The two ends of the fixed support horizontal beam are respectively fixed to the corresponding insulating vertical beam, and the insulating support longitudinal beam is supported by the fixed support horizontal beam on the corresponding side.

[0009] The box support frame is located at the end of the insulated air duct box.

[0010] The transformer room is equipped with an exhaust fan cover on the top side, and each exhaust fan is located in the exhaust fan cover, which has an exhaust port.

[0011] The advantages and positive effects of this utility model are as follows: 1. This utility model adds an insulated air duct box between the transformer and the transformer room top cover to gather the hot air generated by the transformer. This allows the hot air to flow to the exhaust fan in a concentrated manner, thereby improving the heat dissipation efficiency.

[0012] 2. This utility model provides insulating side plates around the insulating duct box to form an insulating duct for the gathering and flow of heated air. At the same time, the insulating side plates will not affect the transformer. In addition, this utility model provides a box support frame inside the insulating duct box to ensure the support strength of the insulating duct. The ends of each metal component constituting the box support frame (i.e., the box support longitudinal beam and the box support transverse beam) are fixedly connected to the insulating vertical beam on the corresponding insulating side plate. This can ensure the insulation isolation of each metal component of the box support frame, thereby reducing the risk of partial discharge and creepage.

[0013] 3. This utility model has a box fixing frame inside the insulating air duct box that is fixed to the transformer clamp. This facilitates the overall installation of the insulating air duct box. At the same time, the various metal components that make up the box fixing frame (i.e., the fixing vertical beam and the fixing support horizontal beam) are insulated and isolated through the insulating support longitudinal beam, thereby reducing the risk of partial discharge and creepage.

[0014] 4. This utility model has an insulating foam strip at the upper end of the insulating air duct box that makes insulating contact with the transformer chamber top cover. This ensures both insulation and sealing performance at the upper end of the insulating air duct box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 for Figure 1 A schematic diagram of airflow during the operation of this utility model. Figure 3 for Figure 2 Top view of the structure of the insulated air duct enclosure and transformer. Figure 4 for Figure 3 AA view in Figure 5 for Figure 3 BB view in Among them, 1 is the transformer, 101 is the transformer upper clamp, 2 is the insulating air duct box, 201 is the insulating side plate, 202 is the fixed vertical beam, 203 is the insulating vertical beam, 204 is the insulating foam strip, 205 is the box support longitudinal beam, 206 is the box support cross beam, 207 is the fixed support cross beam, 208 is the insulating support longitudinal beam, 209 is the box support frame, 210 is the box fixing frame, 3 is the transformer room top cover, 4 is the exhaust fan, and 5 is the exhaust fan cover. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] like Figures 1-2 As shown, this utility model includes an insulating air duct box 2 located inside the transformer room, with the lower end of the insulating air duct box 2 sleeved on the transformer 1 and the upper end connected to an exhaust fan 4 located on the upper side of the transformer room roof 3; as Figures 3-5 As shown, the insulating air duct box 2 is surrounded by insulating side plates 201 to form an insulating air duct, thus... Figure 2 As shown, under the action of the exhaust fan 4, cold air enters from the lower end of the transformer 1, and after passing through the transformer 1 to form hot air, it is concentrated and input into the insulated air duct box 2, and then flows to the exhaust fan 4 for discharge, thereby improving the heat dissipation efficiency; Figure 4As shown, the upper perimeter of the insulated air duct housing 2 is provided with insulating foam strips 204 that make insulating contact with the transformer compartment top cover 3, which simultaneously ensures the sealing performance of the opening at the upper end of the insulated air duct housing 2; additionally, as shown... Figure 4 As shown, the insulating air duct box 2 is equipped with a box fixing frame 210 with an insulating support longitudinal beam 208 inside. One end of the insulating support longitudinal beam 208 is fixed to the transformer clamp 101 on the corresponding side, and the other end is fixed to the insulating side plate 201 on the corresponding side. The insulating support longitudinal beam 208 can effectively isolate the rest of the box fixing frame 210 from contact with the transformer 1, thereby reducing the risk of partial discharge and creepage.

[0018] like Figures 3-5 As shown, in this embodiment, the insulating duct housing 2 is internally provided with a housing support frame 209, and the housing support frame 209 includes vertically intersecting housing support longitudinal beams 205 and housing support transverse beams 206. Each insulating side plate 201 is provided with an insulating vertical beam 203, and the ends of the housing support longitudinal beams 205 and the ends of the housing support transverse beams 206 are respectively fixed to the corresponding insulating vertical beams 203. In this embodiment, to ensure support strength, the housing support longitudinal beams 205 and housing support transverse beams 206 are both made of metal components, and each insulating vertical beam 203 can isolate the metal components from contact with the insulating side plates 201. Additionally, as... Figure 4 As shown, the box support frame 209 can be set only at the end of the insulating air duct box 2 to ensure support, which can ensure smooth ventilation of the insulating air duct formed by the insulating side plates 201.

[0019] like Figures 4-5 As shown, in this embodiment, the housing fixing frame 210 includes a fixed vertical beam 202 and a fixed support horizontal beam 207. The upper end of the fixed vertical beam 202 is fixed to the upper side of the corresponding housing support longitudinal beam 205, and the lower end is fixed to the upper side of the corresponding insulating support longitudinal beam 208. The lower side of the insulating support longitudinal beam 208 is fixedly connected to the transformer upper clamp 101 on the corresponding side. The two ends of the fixed support horizontal beam 207 are respectively fixed to the corresponding insulating vertical beam 203, and the lower side of the insulating support longitudinal beam 208 is provided on the fixed support horizontal beam 207 to ensure support. In this embodiment, in order to ensure the support strength, both the fixed vertical beam 202 and the fixed support horizontal beam 207 are made of metal components. The insulating support longitudinal beam 208 isolates the contact between the fixed vertical beam 202 and the transformer upper clamp 101, while the insulating vertical beam 203 isolates the contact between the fixed support horizontal beam 207 and the insulating side plate 201.

[0020] In this embodiment, the insulating foam strip 204 can be made of foam strip. When the transformer top cover 3 is installed, after the transformer top cover 3 comes into contact with the insulating foam strip 204, the insulating foam strip 204 can be compressed by 3 to 5 mm, thereby ensuring the sealing performance between the upper end of the insulating air duct box 2 and the transformer top cover 3.

[0021] In this embodiment, the insulating side plate 201, insulating vertical beam 203 and insulating support longitudinal beam 208 can be made of suitable insulating materials, such as DMC, SMC, etc.

[0022] like Figures 1-2 As shown, in this embodiment, the transformer room top cover 3 is provided with an exhaust fan cover 5 on the upper side, and each exhaust fan 4 is located in the exhaust fan cover 5. The exhaust fan cover 5 is provided with an exhaust port, which is a well-known technology in the art.

[0023] The working principle of this utility model is as follows: like Figures 1-2 As shown, this utility model first adds an insulating air duct box 2 between the transformer 1 and the transformer room top cover 3 to gather the hot air generated by the transformer 1. This allows the hot air to flow to the exhaust fan 4 in a concentrated manner, thereby improving the heat dissipation efficiency.

[0024] Secondly, as Figures 3-5 As shown, this invention features insulating side plates 201 surrounding the insulating duct housing 2 to form an insulating duct that gathers and flows heated air, while the insulating side plates 201 do not affect the transformer 1. Furthermore, this invention includes a housing support frame 209 inside the insulating duct housing 2 to ensure the supporting strength of the insulating duct. The housing support frame 209 includes vertically intersecting longitudinal beams 205 and transverse beams 206 made of metal components to ensure supporting strength. The ends of the longitudinal beams 205 and the transverse beams 206 are respectively fixedly connected to the corresponding insulating vertical beams 203 on the insulating side plates 201, ensuring the insulation isolation between the longitudinal beams 205 and the transverse beams 206.

[0025] Again Figure 4 As shown, the present invention further includes a housing fixing frame 210 inside the insulating duct housing 2, which is fixed to the transformer clamp 101. This facilitates the overall installation of the insulating duct housing 2. The housing fixing frame 210 includes a fixing vertical beam 202 and a fixing support horizontal beam 207 made of metal components, which can ensure the support strength of the housing fixing frame 210. At the same time, the housing fixing frame 210 also includes an insulating support longitudinal beam 208, which is fixed to the transformer clamp 101. This can ensure the insulation isolation of the metal component part of the housing fixing frame 210.

[0026] Finally, as Figures 3-5 As shown, the present invention has an insulating foam strip 204 at the upper end of the insulating air duct box 2, which is in insulating contact with the transformer chamber top cover 3. While ensuring insulation and isolation, it can also ensure the sealing performance of the upper end of the insulating air duct box 2.

[0027] During installation, after the transformer 1 is assembled, the insulating air duct box 2 is fitted onto the upper end of the transformer 1. The box fixing frame 210 is then fixedly connected to the upper clamp 101 of the transformer to complete the installation. Subsequently, the transformer chamber top cover 3 is placed on the upper end of the insulating air duct box 2, and finally, the exhaust fan 4 and other devices are installed on the transformer top cover 3.

Claims

1. An indoor transformer heat dissipation structure, characterized in that: The equipment includes an insulating duct box (2) located inside the transformer room, with the lower end of the insulating duct box (2) fitted onto the transformer (1) and the upper end connected to an exhaust fan (4) located on the upper side of the transformer room roof (3); the insulating duct box (2) is surrounded by insulating side plates (201), and the upper end of the insulating duct box (2) is surrounded by insulating foam strips (204) that contact the transformer room roof (3); the insulating duct box (2) is equipped with a box fixing frame (210) with insulating support longitudinal beams (208) inside, and one end of the insulating support longitudinal beams (208) is fixed to the transformer upper clamp (101) on the corresponding side, and the other end is fixedly connected to the insulating side plate (201) on the corresponding side.

2. The indoor transformer heat dissipation structure according to claim 1, characterized in that: The insulating duct box (2) is provided with a box support frame (209) inside, and the box support frame (209) includes a box support longitudinal beam (205) and a box support transverse beam (206) arranged vertically. Each insulating side plate (201) is provided with an insulating vertical beam (203), and the two ends of the box support longitudinal beam (205) and the two ends of the box support transverse beam (206) are respectively fixed to the corresponding insulating vertical beam (203).

3. The indoor transformer heat dissipation structure according to claim 2, characterized in that: The enclosure fixing frame (210) includes a fixed vertical beam (202) and a fixed support horizontal beam (207). The upper end of the fixed vertical beam (202) is fixed to the upper and lower ends of the corresponding enclosure support longitudinal beam (205) and the upper side of the corresponding insulating support longitudinal beam (208). The lower side of the insulating support longitudinal beam (208) is fixed to the transformer upper clamp (101) on the corresponding side. The two ends of the fixed support horizontal beam (207) are respectively fixed to the corresponding insulating vertical beam (203), and the insulating support longitudinal beam (208) is supported by the fixed support horizontal beam (207) on the corresponding side.

4. The indoor transformer heat dissipation structure according to claim 2, characterized in that: The box support frame (209) is located at the end of the insulated air duct box (2).

5. The indoor transformer heat dissipation structure according to claim 1, characterized in that: The transformer room top cover (3) is provided with an exhaust fan cover (5) on the upper side, and each exhaust fan (4) is located in the exhaust fan cover (5), and the exhaust fan cover (5) is provided with an exhaust port.

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