CN210091870U

CN210091870U - Oil-immersed transformer

Info

Publication number: CN210091870U
Application number: CN201921023848.0U
Authority: CN
Inventors: 王梓任; 吴英豪; 郑世昕
Original assignee: PowerChina Guiyang Engineering Corp Ltd
Current assignee: PowerChina Guiyang Engineering Corp Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-02-18
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses an oil-immersed transformer, by supreme heat dissipation case and the casing of being fixed with down on the bottom plate, the louvre has been seted up in the front of heat dissipation case, the fan is installed to its one side, the gas outlet and the first trachea intercommunication of fan, first trachea insert the heat dissipation incasement portion and communicate with the second trachea, the air jet has been seted up to the tracheal side of second, the oil pump is installed to the opposite side of heat dissipation case, the oil inlet and the oil inlet pipe intercommunication of oil pump, the oil inlet pipe insert the inside of heat dissipation case and communicate with the cooling tube of continuous U-shaped structure, the one end that the oil pipe was kept away from to the cooling tube inserts in the casing, the oil-out pipe intercommunication in the oil-out pipe and the heat dissipation case, go out the oil pipe other end insert in the casing. The fan carries out the wind-blowing cooling through first trachea, second trachea and jet-propelled mouth to the cooling tube, and the oil temperature that flows into the oil pump like this reduces.

Description

Oil-immersed transformer

Technical Field

The utility model relates to an oil-immersed transformer belongs to electrical equipment technical field.

Background

An oil immersed transformer uses oil as the main insulation means of the transformer. The main parts of the transformer comprise an iron core, a winding, an oil tank, an oil conservator, a respirator, an explosion-proof tube (a pressure relief valve), a radiator, an insulating sleeve, a tap switch, a gas relay, a thermometer, an oil purifier and the like.

Although the temperature of oil in the existing oil-immersed transformer is increased due to heat transfer, the heat dissipation oil mainly transfers heat by contacting with the wall of the housing, and the heat dissipation effect is much better than that of the traditional air-wall contact, with the development of society, the transformer of the type can not be applied to the environment with relatively poor heat dissipation conditions due to the limitation of the heat dissipation performance.

Disclosure of Invention

An object of the utility model is to provide an oil-immersed transformer. This fan carries out the forced draught cooling to the cooling tube through first trachea, second trachea and jet orifice in transformer structure, and the oil temperature that flows in the oil pump like this reduces, and low temperature oil spouts in the casing through play oil pipe, shunt tubes, oil spout to realize the circulation of oil and take out the heat of inside, reach the purpose of cooling, the radiating efficiency is high, has fine practicality.

The technical scheme of the utility model: the utility model provides an oil-immersed transformer, which comprises a base plate, be fixed with heat dissipation case and casing by supreme down on the bottom plate, the louvre of bar has been seted up in the front of heat dissipation case, the fan is installed to its one side, the gas outlet and the first trachea intercommunication of fan, first trachea inserts the heat dissipation incasement portion and communicates with the second trachea, the air jet has been seted up to the tracheal side of second, the oil pump is installed to the opposite side of heat dissipation case, the oil inlet and the oil inlet pipe intercommunication of oil pump, the oil inlet pipe inserts the inside of heat dissipation case and communicates with the cooling tube of continuous U-shaped structure, the one end that the oil inlet pipe was kept away from to the cooling tube inserts in the casing, the oil-out pipe intercommunication in the oil-out of oil pump and the heat dissipation case, go out in.

In the oil-immersed transformer, a filter is mounted on a pipe section of the oil outlet pipe.

In the oil-immersed transformer, the second air pipes are provided with a plurality of second air pipes, and the plurality of second air pipes are arranged in parallel.

In the oil-immersed transformer, the side of the housing is provided with the heat dissipation fins.

In the oil-immersed transformer, the heat dissipation pipe is made of stainless steel.

In the oil-immersed transformer, the second air pipe is fixed on the inner wall of the heat dissipation box, a plurality of air nozzles are arranged on the front surface of the second air pipe at equal intervals, and the heat dissipation pipe is located right in front of the air nozzles.

The utility model has the advantages that: compared with the prior art, the utility model discloses well fan carries out the wind cooling to the cooling tube through first trachea, second trachea and jet orifice, through the cooling tube, go out oil pipe, advance oil pipe and oil pump and realize the recycling of heat dissipation oil, thereby make the oil temperature of inflow oil pump reduce, low temperature oil spouts in the casing through going out oil pipe, shunt tubes, fuel sprayer, thereby realize the circulation of oil and take out the heat of inside, reach the purpose of cooling, the radiating efficiency is high, has fine practicality, and novel structure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a heat dissipation case;

reference numerals: 1-bottom plate, 2-heat dissipation box, 3-second air pipe, 4-heat dissipation pipe, 5-air nozzle, 6-first air pipe, 7-fan, 8-transformer body, 9-heat dissipation fin, 10-shell, 11-oil nozzle, 12-shunt pipe, 13-filter, 14-oil outlet pipe, 15-oil pump and 16-oil inlet pipe.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

The embodiment of the utility model provides a: an oil-immersed transformer is disclosed, as shown in figure 1-2, comprising a bottom plate 1, a heat dissipation box 2 and a shell 10 are fixed on the bottom plate 1 from bottom to top, a plurality of heat dissipation holes with strips are opened on the front surface of the heat dissipation box 2, a fan 7 is installed on one side of the heat dissipation box 2, the air outlet of the fan 7 is communicated with a first air pipe 6, the first air pipe 6 is inserted into the heat dissipation box 2 and is communicated with a second air pipe 3, a plurality of air nozzles 5 are opened on the side edge of the second air pipe 3, an oil pump 15 is installed on the other side of the heat dissipation box 2, the oil inlet of the oil pump 15 is communicated with an oil inlet pipe 16, the oil inlet pipe 16 is inserted into the heat dissipation box 2 and is communicated with a heat dissipation pipe 4 with a continuous U-shaped structure, one end of the heat dissipation pipe 4 far away from the oil inlet pipe 16 is inserted into the shell 10, the oil outlet, an oil nozzle 11 is arranged on the side edge of the shunt pipe 12, and a transformer body 8 is arranged inside the shell 10.

The working principle is as follows: the casing 10 is filled with heat dissipation oil, the transformer body 8 generates heat during operation, heat is absorbed by the heat dissipation oil, the oil pump 15 sucks the heat dissipation oil in the casing 10 into the oil pump 15 through the oil inlet pipe 16 and the heat dissipation pipe 4, and then the heat dissipation oil is sprayed into the casing 10 through the oil outlet pipe 14, the shunt pipe 12 and the oil nozzle 11. Simultaneously, fan 7 rotates and sends into cold air to second trachea 3 through first trachea 6 to send out through air jet 5 and carry out the forced draught cooling to cooling tube 4, thereby make the radiating oil temperature who flows into oil pump 15 through cooling tube 4 reduce, microthermal radiating oil spouts casing 10 in through play oil pipe 14, shunt tubes 12, nozzle 11 again, thereby realizes the circulation of radiating oil and takes out the heat of inside.

And a filter 13 is arranged on the pipe section of the oil outlet pipe 14, and the filter 13 filters out slag in the heat-dissipating oil.

The second air pipes 3 are provided with a plurality of second air pipes 3 which are arranged in parallel, so that the heat dissipation effect is improved.

The side of the shell 10 is provided with the radiating fins 9, and the radiating is realized through the radiating fins 9, so that the radiating path is increased.

The radiating pipe 4 is made of stainless steel, so that heat dissipation is facilitated.

Second trachea 3 is fixed on the inner wall of heat dissipation case 2, and its front equidistance has arranged a plurality of air vents 5, and cooling tube 4 is located the dead ahead of air vent 5. So that the cold air sprayed from the air nozzles 5 directly acts on the surface of the radiating pipe 4, and the radiating effect is better.

Claims

1. An oil-immersed transformer, its characterized in that: comprises a bottom plate (1), a heat dissipation box (2) and a shell (10) are fixed on the bottom plate (1) from bottom to top, a strip-shaped heat dissipation hole is formed in the front surface of the heat dissipation box (2), a fan (7) is installed on one side of the heat dissipation box, an air outlet of the fan (7) is communicated with a first air pipe (6), the first air pipe (6) is inserted into the heat dissipation box (2) and is communicated with a second air pipe (3), an air jet opening (5) is formed in the side edge of the second air pipe (3), an oil pump (15) is installed on the other side of the heat dissipation box (2), an oil inlet of the oil pump (15) is communicated with an oil inlet pipe (16), the oil inlet pipe (16) is inserted into the heat dissipation box (2) and is communicated with a heat dissipation pipe (4) with a continuous U-shaped structure, one end, far away from the oil inlet pipe (16), of the heat dissipation pipe (4) is inserted into the, the other end of the oil outlet pipe (14) is inserted into the shell (10) and communicated with the shunt pipe (12), the side edge of the shunt pipe (12) is provided with an oil nozzle (11), and the inside of the shell (10) is provided with a transformer body (8).

2. Oil filled transformer according to claim 1, characterized in that the outlet pipe (14) is provided with a filter (13) on its length.

3. An oil filled transformer according to claim 1, characterized in that: the second air pipes (3) are provided with a plurality of air pipes, and the plurality of second air pipes (3) are arranged in parallel.

4. An oil filled transformer according to claim 1, characterized in that: and heat radiating fins (9) are arranged on the side edge of the shell (10).

5. An oil filled transformer according to claim 1, characterized in that: the radiating pipe (4) is made of stainless steel.

6. An oil filled transformer according to claim 1, characterized in that: second trachea (3) are fixed on the inner wall of heat dissipation case (2), and a plurality of air vents (5) have been arranged to its front equidistance, and cooling tube (4) are located the dead ahead of air vent (5).