CN214476910U

CN214476910U - Transformer bushing heat abstractor

Info

Publication number: CN214476910U
Application number: CN202120478335.XU
Authority: CN
Inventors: 曹明波; 石孝刚; 朱培兵
Original assignee: Shandong Qixing High Voltage Electric Co ltd
Current assignee: Shandong Qixing High Voltage Electric Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-10-22
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses a transformer bushing heat dissipation device, which belongs to the technical field of transformer bushings and comprises a pipe body, wherein a hole is arranged in the pipe body, a heat exchange cavity is arranged on the outer peripheral surface of the pipe body, a heat exchange pipeline is arranged around the heat exchange cavity, a first communicating pipeline and a second communicating pipeline are arranged between the heat exchange pipeline and the heat exchange cavity to communicate with each other, pressure valves are arranged on the first communicating pipeline and the second communicating pipeline, and the heat exchange cavity and the heat exchange pipeline are filled with insulating heat dissipation oil; the utility model discloses the utilization is around the heat transfer chamber and the heat transfer pipeline of body, can supply insulating heat dissipation oil circulation to flow, and when the inside high temperature of body, heat transfer intracavity portion pressure risees, backs down the pressure valve, and the insulating heat dissipation oil of heat transfer intracavity high temperature can flow into heat transfer pipeline interior heat dissipation cooling back and flow back to timely give out the heat inside the body, avoid the temperature in the body to sharply rise, the effectual transformer bushing's life that has improved.

Description

Transformer bushing heat abstractor

Technical Field

The utility model relates to a transformer bushing technical field, concretely relates to transformer bushing heat abstractor.

Background

The transformer is one of the most complex and most core electrical devices in the structure of the power system. The transformer bushing is a main insulation device outside the transformer box, leading-out wires of a transformer winding must penetrate through the insulated transformer bushing to enable the leading-out wires to be insulated from each other and from the transformer shell, and meanwhile, the transformer bushing also plays a role in fixing the leading-out wires. The transformer bushing is one of current-carrying elements of the transformer, and loads current for a long time during the operation of the transformer, and passes short-circuit current when short circuit occurs outside the transformer. Therefore, the transformer bushing has high requirements on electrical strength, mechanical strength, thermal stability, sealing performance, universality and convenience in disassembly and assembly.

When the transformer bushing is used, a large amount of heat can be generated inside the transformer bushing, if the heat dissipation performance of the transformer bushing is poor, the heat inside the transformer bushing cannot be dissipated timely, the temperature inside the transformer bushing can be increased rapidly, the transformer bushing and the lead-out wire inside the transformer bushing are damaged easily, and the normal operation of a transformer is affected.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a pair of transformer bushing heat abstractor utilizes heat transfer chamber and heat transfer pipeline around the body, can supply insulating heat dissipation oil circulation to flow, when the inside high temperature of body, the insulating heat dissipation oil of heat transfer intracavity high temperature can flow into heat transfer pipeline and flow back after the heat dissipation cooling to timely distribute out the inside heat of body, avoid the temperature in the body to sharply rise, the effectual transformer bushing's life that has improved.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a transformer bushing heat abstractor, includes the body, have the pore in the body, center on be equipped with the heat transfer chamber on the outer peripheral face of body, center on the heat transfer chamber is equipped with heat transfer pipeline, heat transfer pipeline with be equipped with first intercommunication pipeline and second intercommunication pipeline between the heat transfer chamber with the intercommunication, first intercommunication pipeline with all be equipped with the pressure valve on the second intercommunication pipeline, the heat transfer chamber with all be filled with insulating heat dissipation oil in the heat transfer pipeline.

As a preferred technical scheme, the pipe body is made of glass fiber reinforced plastic materials.

As a preferred technical scheme, the pipe wall of the heat exchange pipe is made of a heat conducting and insulating material.

As a preferred technical scheme, the tube wall of the heat exchange tube is made of silica gel, silica gel or ceramic material.

As a preferable technical solution, the first communicating channel and the second communicating channel are respectively located at two ends of the pipe body.

As a preferable mode, the heat exchange tube is formed in a zigzag shape, an S shape, or a spiral shape.

The utility model has the advantages of that:

the utility model discloses the utilization is around the heat transfer chamber and the heat transfer pipeline of body, can supply insulating heat dissipation oil circulation to flow, and when the inside high temperature of body, heat transfer intracavity portion pressure risees, backs down the pressure valve, and the insulating heat dissipation oil of heat transfer intracavity high temperature can flow into heat transfer pipeline interior heat dissipation cooling back and flow back to timely give out the heat inside the body, avoid the temperature in the body to sharply rise, the effectual transformer bushing's life that has improved.

Drawings

Fig. 1 is the overall structure schematic diagram of the transformer bushing heat dissipation device of the present invention.

In the figure: the heat exchange device comprises a pipe body 1, a pore channel 11, a heat exchange cavity 2, a heat exchange pipeline 3, a first communicating pipeline 4, a second communicating pipeline 5 and a pressure valve 6.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Please refer to fig. 1, which is an embodiment of a transformer bushing heat dissipation device of the present invention, including a tube body 1, wherein a hole 11 is formed in the tube body 1, and a lead-out wire of a transformer winding can pass through the hole 11; a heat exchange cavity 2 is arranged on the outer peripheral surface of the surrounding pipe body 1, a heat exchange pipeline 3 is arranged on the surrounding heat exchange cavity 2, a first communicating pipeline 4 and a second communicating pipeline 5 are arranged between the heat exchange pipeline 3 and the heat exchange cavity 2 to be communicated, and the heat exchange cavity 2, the heat exchange pipeline 3, the first communicating pipeline 4 and the second communicating pipeline 5 form a circulating communicating pipeline; all be equipped with pressure valve 6 on first communicating pipe 4 and the second communicating pipe 5, all fill insulating heat dissipation oil in heat transfer chamber 2 and the heat transfer pipeline 3, when 1 inside intensification of body, insulating heat dissipation oil temperature in the heat transfer chamber 2 risees, pressure in the heat transfer chamber 2 risees, when pressure in the heat transfer chamber 2 reaches the predetermined threshold value of pressure valve 6, pressure valve 6 opens, the automatic inflow of the insulating heat dissipation oil of the high temperature in the heat transfer chamber 2 is to heat transfer pipeline 3 in, and after quick heat dissipation cooling in heat transfer pipeline 3, can flow back to in the heat transfer chamber 2, through the insulating heat dissipation oil that the circulation flows, heat in can be quick with the body 1 distributes out.

It should be noted that, referring to fig. 1, in a normal situation, a connection end between the transformer bushing and the transformer is a main heat generation point, so that the temperature of the insulating heat dissipation oil near the second communicating pipe 5 in the heat exchange cavity 2 is usually slightly higher than the temperature of the insulating heat dissipation oil near the first communicating pipe 4, and when the pressure valve 6 is opened, the insulating heat dissipation oil in the heat exchange cavity 2 flows into the heat exchange pipeline 3 through the second communicating pipe, and then flows back to the heat exchange cavity 2 from the first communicating pipe 4, so as to form a circulating flow of the insulating heat dissipation oil.

It should be noted that, the tube body 1 is preferably made of glass fiber reinforced plastic material, which can effectively ensure the electrical strength, mechanical strength and thermal stability of the tube body 1; the pipe wall of the heat exchange pipe 3 is preferably made of a heat conducting and insulating material, so that the heat of the insulating and heat dissipating oil in the heat exchange pipe 3 can be dissipated timely, and specifically, the pipe wall of the heat exchange pipe 3 can be made of silica gel, silica gel or a ceramic material.

In this embodiment, referring to fig. 1, the first communicating channel 4 and the second communicating channel 5 are respectively located at two ends of the pipe body 1, so as to ensure that the insulating heat dissipating oil can circularly flow.

In this embodiment, referring to fig. 1, the heat exchange pipe 3 is in a zigzag shape, an S shape, or a spiral shape, so as to increase the flow distance of the insulating heat dissipation oil in the heat exchange pipe 3 and improve the heat dissipation effect.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a transformer bushing heat abstractor, characterized by, includes the body, have the pore in the body, center on be equipped with the heat transfer chamber on the outer peripheral face of body, center on the heat transfer chamber is equipped with heat transfer pipeline, heat transfer pipeline with be equipped with first intercommunication pipeline and second intercommunication pipeline between the heat transfer chamber with the intercommunication, all be equipped with the pressure valve on first intercommunication pipeline with the second intercommunication pipeline, the heat transfer chamber with all fill with insulating heat dissipation oil in the heat transfer pipeline.

2. The transformer bushing heat sink of claim 1, wherein said tube is made of glass fiber reinforced plastic.

3. The transformer bushing heat sink according to claim 1, wherein the walls of the heat exchanging pipes are made of a heat conducting and insulating material.

4. The transformer bushing heat sink according to claim 3, wherein the wall of the heat exchanging pipe is made of silica gel, silica gel or ceramic material.

5. The transformer bushing heat sink of claim 1, wherein said first connecting channel and said second connecting channel are located at two ends of said tube.

6. The transformer bushing heat sink according to claim 1, wherein said heat exchanging pipe is formed in a zigzag shape, an S-shape or a spiral shape.