CN209843456U - Oil-immersed transformer heat radiation structure - Google Patents

Oil-immersed transformer heat radiation structure Download PDF

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Publication number
CN209843456U
CN209843456U CN201920348100.1U CN201920348100U CN209843456U CN 209843456 U CN209843456 U CN 209843456U CN 201920348100 U CN201920348100 U CN 201920348100U CN 209843456 U CN209843456 U CN 209843456U
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China
Prior art keywords
oil
transformer
connecting pipe
horizontal part
oil inlet
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Active
Application number
CN201920348100.1U
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Chinese (zh)
Inventor
魏宏伟
李栋宝
刘星
楚振宇
赵春燕
柴淑颖
徐国杰
赵大伟
王潘潘
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China Railway Engineering Consulting Group Co Ltd
China Railway Electric Industry Co Ltd
Original Assignee
China Railway Engineering Consulting Group Co Ltd
China Railway Electric Industry Co Ltd
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Priority to CN201920348100.1U priority Critical patent/CN209843456U/en
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Publication of CN209843456U publication Critical patent/CN209843456U/en
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  • Housings And Mounting Of Transformers (AREA)
  • Transformer Cooling (AREA)

Abstract

The utility model discloses an oil-immersed transformer heat dissipation structure, which comprises a plurality of groups of cooling fins, wherein each group of cooling fins comprises an oil passing pipeline, one end of the oil passing pipeline is an oil inlet, the other end of the oil passing pipeline is an oil outlet, each oil inlet is connected to the horizontal part of a folded connecting pipe, and the vertical part of the folded connecting pipe is connected with the oil outlet end of the transformer; and each oil outlet is respectively connected with a first horizontal part of a Z-shaped connecting pipe, and a second horizontal part of the Z-shaped connecting pipe is connected with the oil inlet end of the transformer. The device simple structure, the assembly is convenient, and can effectual improvement oil-immersed transformer's radiating efficiency.

Description

Oil-immersed transformer heat radiation structure
Technical Field
The utility model relates to a transformer field, concretely relates to be radiating structure of oil-immersed transformer.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, the transformer generates heat along with the operation of the transformer, the heat needs to be dissipated in time, otherwise, the service life of the transformer is shortened after an overheating phenomenon is formed, and accidents can be caused in serious cases. Generally, one or more groups of radiating fins are arranged on a transformer to assist in accelerating heat dissipation, and when the radiating fins are arranged, each group of radiating fins can be respectively and directly arranged on the wall of the transformer tank; in addition, a total collecting pipe can be additionally arranged on oil inlet and outlet pipelines at the upper end and the lower end of a plurality of dispersed groups of radiating fins respectively, then the collecting pipe is connected to the transformer, the mounting mode is mostly used for large-scale transformers, but the mounting mode has larger difficulty in assembling due to larger radiating fin groups, and the oil speed of the radiating structure can be reduced by the structures of the upper oil collecting pipe and the lower oil collecting pipe, so that the radiating efficiency of the whole structure is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oil-immersed transformer heat radiation structure, the device simple structure, it is convenient to assemble, and can effectual improvement oil-immersed transformer's radiating efficiency.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a heat dissipation structure of an oil-immersed transformer comprises a plurality of groups of cooling fins, wherein each group of cooling fins comprises an oil passing pipeline, one end of each oil passing pipeline is an oil inlet, the other end of each oil passing pipeline is an oil outlet, each oil inlet is connected to the horizontal part of a folded connecting pipe, and the vertical part of each folded connecting pipe is connected with the oil outlet end of the transformer; and each oil outlet is respectively connected with a first horizontal part of a Z-shaped connecting pipe, and a second horizontal part of the Z-shaped connecting pipe is connected with the oil inlet end of the transformer.
Preferably, each oil inlet is connected to a general oil collecting pipe, and an outlet end of the oil collecting pipe is connected to a horizontal portion of one of the folded connecting pipes.
Preferably, the oil collecting pipe is installed on the transformer through a support frame.
In the technical scheme, the oil inlet of the heat dissipation structure is connected with the transformer through a general oil collection pipeline, and the lower end of the heat dissipation structure enters the transformer through each oil outlet, so that cooled transformer oil in the heat dissipation structure can be dispersed and enter the transformer for the next cooling operation, and the phenomenon of obvious local cold and hot temperature difference can not be generated; the oil inlet of heat radiation structure is connected on the oil collecting pipe, the oil collecting pipe is installed on the oil outlet end of transformer through the book shape connecting pipe, improve in the vertical direction with heat radiation structure through the vertical portion of book shape connecting pipe like this, promote heat radiation structure's heat dissipation center, heat radiation structure's oil-out links to each other through the oil inlet end of "Z" shape connecting pipe with the transformer, can enlarge the distance between heat radiation structure and the ground like this, increase heat radiation structure's radiating efficiency, and can reserve the fan installing port for the transformer, can not influence its installation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, this oil-immersed transformer heat radiation structure includes heat abstractor, the utility model discloses a heat abstractor includes multiunit parallel arrangement's fin 1, all installs the oil pipeline in every group fin 1, and the upper end of crossing the oil pipeline is oil inlet 21, and oil inlet 21 in all the fins among the heat abstractor all connects on same oil collecting pipe 3, all links together through butterfly valve 23 erection joint on oil collecting pipe 3 and every oil inlet 21, and the switching of fin oil inlet can be controlled to butterfly valve 23. One end of the oil collecting pipe 3 is connected with the oil inlet 21 of each cooling fin, the other end of the oil collecting pipe is connected with the folded connecting pipe 4, the folded connecting pipe 4 comprises a horizontal portion 41 and a vertical portion 42, the horizontal portion 41 is connected with the oil collecting pipe, the other end of the vertical portion is connected with the vertical portion, the other end of the vertical portion 42 is connected to the oil outlet end 51 of the transformer 5, hot oil coming out of the transformer 5 enters the oil collecting pipe 3 through the folded connecting pipe 4, and the hot oil enters the heat dissipation structure from the oil inlet 21 of each cooling fin.
Further, in order to make the oil collecting pipe more stable, the supporting frame 7 can be used for fixing the oil collecting pipe on the transformer box body.
The lower end of the oil passing pipeline 2 is provided with an oil outlet 22, the radiating fins of each group of oil outlets 22 are connected to a Z-shaped connecting pipe 6, the Z-shaped connecting pipe comprises a first water part 61, a second horizontal part 62 and a vertical connecting part 63 between the first water part and the second horizontal part, the oil outlet 22 is connected to the first horizontal part 61 of the Z-shaped connecting pipe, a butterfly valve 23 is installed between the oil outlet 22 and the first horizontal part 61, and the oil outlets of the radiating fins can be controlled. Hot oil flows into the radiating fins 1 through the oil collecting pipes 3 and then directly flows into the transformer 5 through the respective oil outlets 22, so that the condition of large local temperature difference inside the transformer can be avoided.
After reaching a certain temperature, oil in the transformer enters the oil collecting pipe from the oil outlet end at the upper end of the transformer, then flows into the radiating fins through the oil inlets of each group of radiating fins, hot oil flows downwards along the radiating fins and is cooled in the process, the cooled oil reaches the lower end of the radiator, and enters the interior of the transformer again from the oil outlet pipeline of the radiator to perform the next cooling operation, so that the oil is recycled. In the process, the upper end bent pipe can improve the height of the radiating fins, the Z-shaped elbow at the lower end can effectively reduce the positions of the oil inlet ends of the radiator and the transformer, and an air cooling port can be reserved.
Furthermore, the structural strength between the folded connecting piece and the Z-shaped connecting piece and the box wall can be enhanced by welding steel plates.
This embodiment is only an illustration of the present invention, and is not a limitation thereof, and the technical solution that is not substantially changed is still within the protection scope.

Claims (3)

1. A kind of oil-immersed transformer heat-dissipating structure, including several groups of air-cooling fins, every group of air-cooling fins include the oil pipeline, one end of the oil pipeline is an oil inlet, another end is an oil outlet, characterized by that, each said oil inlet connects on the horizontal part of the fold-shaped joint pipe, the vertical part of the fold-shaped joint pipe couples to oil outlet end of the transformer; and each oil outlet is respectively connected with a first horizontal part of a Z-shaped connecting pipe, and a second horizontal part of the Z-shaped connecting pipe is connected with the oil inlet end of the transformer.
2. The oil-filled transformer heat dissipation structure of claim 1, wherein each oil inlet is connected to a general oil collection pipe, and an outlet end of the oil collection pipe is connected to a horizontal portion of one of the folded connection pipes.
3. The oil-filled transformer heat dissipation structure of claim 2, wherein the oil collection pipe is mounted on the transformer by a support bracket.
CN201920348100.1U 2019-03-19 2019-03-19 Oil-immersed transformer heat radiation structure Active CN209843456U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920348100.1U CN209843456U (en) 2019-03-19 2019-03-19 Oil-immersed transformer heat radiation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920348100.1U CN209843456U (en) 2019-03-19 2019-03-19 Oil-immersed transformer heat radiation structure

Publications (1)

Publication Number Publication Date
CN209843456U true CN209843456U (en) 2019-12-24

Family

ID=68907021

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920348100.1U Active CN209843456U (en) 2019-03-19 2019-03-19 Oil-immersed transformer heat radiation structure

Country Status (1)

Country Link
CN (1) CN209843456U (en)

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GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Wei Hongwei

Inventor after: Li Dongbao

Inventor after: Liu Xing

Inventor after: Chu Zhenyu

Inventor after: Zhao Chunyan

Inventor after: Chai Shuying

Inventor after: Xu Guojie

Inventor after: Zhao Dawei

Inventor after: Wang Panpan

Inventor before: Wei Hongwei

Inventor before: Li Dongbao

Inventor before: Liu Xing

Inventor before: Chu Zhenyu

Inventor before: Zhao Chunyan

Inventor before: Chai Shuying

Inventor before: Xu Guojie

Inventor before: Zhao Dawei

Inventor before: Wang Panpan