CN209912681U

CN209912681U - Transformer

Info

Publication number: CN209912681U
Application number: CN201921135945.9U
Authority: CN
Inventors: 铁政; 陈益平; 刘晓军; 陈文杰
Original assignee: Zhengnai Electric Co Ltd
Current assignee: Zhengnai Electric Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-01-07
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to a power equipment technical field discloses a transformer, including the transformer body, the mid-mounting on the top of transformer body has the oil cooling device, the inboard that the top of transformer body is close to the oil cooling device is provided with a plurality of high-tension bushing, the side all is provided with the fin around the transformer body. The utility model discloses an oil pump can be in this internal transformer oil suction of transformer to the conservator, can make the automatic transformer oil that supplements in the conservator to this internally through mending oil pipe, thereby transformer oil is when circulating, make this internal transformer oil that all is full of constantly of transformer, dispel the heat and insulation protection to the transformer body high-efficiently, and simple structure, the radiating effect is good, can filter endless transformer oil through the filter, make transformer oil keep pureness, can carry out the back flush to the filter fast through communicating pipe, and is convenient, and is quick.

Description

Transformer

Technical Field

The utility model relates to a power equipment technical field specifically is a transformer.

Background

A transformer is a common electrical device, which can be used to transform an alternating voltage of a certain value into an alternating voltage of another value with the same frequency, and can also change the value of alternating current and transform impedance or change phase, and is widely used in various fields.

Chinese patent discloses a heat dissipation transformer (No. CN204857387U), and the oil tank right side of this patent technology is equipped with a control by temperature change water pump, the control by temperature change water pump is connected the spray bar, can spray water the cooling to the transformer outside, but its structure is complicated, need set up special water pump, and the radiating effect is not good, and can not filter the transformer oil of transformer inside. Accordingly, one skilled in the art provides a transformer to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a transformer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a transformer comprises a transformer body, wherein a group of mounting frames are fixedly connected to the bottom end of the transformer body, an oil cooling device is mounted in the middle of the top end of the transformer body, a plurality of high-voltage sleeves are arranged on the inner side, close to the oil cooling device, of the top end of the transformer body, a plurality of low-voltage sleeves are arranged on the front side, close to the high-voltage sleeves, of the top end of the transformer body, and cooling fins are arranged on the front side and the rear side of the transformer body;

the oil cooling device comprises an oil conservator, an oil filling cover is arranged in the middle of the top end of the oil conservator, a bent connecting pipe is fixedly connected to one side, close to the oil filling cover, of the top end of the oil conservator, an oil supplementing pipe is fixedly connected to one side, far away from the bent connecting pipe, of one end of the oil conservator, a group of supports are arranged at the bottom end of the oil conservator, an oil pump is fixedly connected to the bottom end of the bent connecting pipe, and a filtering assembly is connected to one end of the oil;

the filter assembly comprises a filter, wherein one end of the filter is fixedly connected with an oil inlet pipe, the other end of the filter is fixedly connected with an oil outlet pipe, the bottom end of the filter is provided with a sewage draining outlet, a sewage draining valve is arranged on the inner side of the sewage draining outlet, an oil outlet valve is arranged on the inner side of the oil outlet pipe, an oil inlet valve is arranged on the inner side of the oil inlet pipe, the upper ends of the oil outlet pipe and the oil inlet pipe are jointly connected with a communicating pipe, and a communicating valve is arranged on the inner side.

As a further aspect of the present invention: the transformer body comprises an outer shell, an iron core is arranged inside the outer shell, a primary winding is wound on the outer side of the upper end of the iron core, and a secondary winding is wound on the outer side of the lower end of the iron core.

As a further aspect of the present invention: the filter is characterized in that a filter element is arranged in the filter, and the drain outlet is close to one side of the oil inlet valve.

As a further aspect of the present invention: the oil outlet valve is close to the outer side of the communicating pipe, and the oil inlet valve is close to the inner side of the communicating pipe.

As a further aspect of the present invention: the one end of going out oil pipe and the output fixed connection of oil pump, the bottom that advances oil pipe and the top fixed connection of shell body.

As a further aspect of the present invention: the bottom ends of the oil supplementing pipe and the support are fixedly connected with the top end of the outer shell.

Compared with the prior art, the beneficial effects of the utility model are that:

can be through the oil pump this internal transformer oil suction of transformer to the conservator in, can make the automatic transformer oil that supplys in the conservator to this internally through mending oil pipe, thereby transformer oil is when circulating, make this internal transformer oil that all is full of transformer constantly, dispel the heat and insulation protection to the transformer body high-efficiently, and simple structure, the radiating effect is good, can filter endless transformer oil through the filter, make transformer oil keep pureness, avoid the inside impaired of transformer body, can carry out the back flush to the filter fast through communicating pipe, and is convenient and fast.

Drawings

FIG. 1 is a schematic diagram of a transformer;

FIG. 2 is a schematic cross-sectional view of a transformer body in a transformer;

FIG. 3 is a schematic diagram of an oil cooling device in a transformer;

fig. 4 is a schematic structural diagram of a filter assembly in a transformer.

In the figure: 1. a transformer body; 11. an outer housing; 12. a primary winding; 13. an iron core; 14. a secondary winding; 2. an oil cooling device; 21. an oil conservator; 22. an oil filling cap; 23. bending the connecting pipe; 24. an oil pump; 25. a filter assembly; 251. a filter; 252. a sewage draining outlet; 253. a blowoff valve; 254. an oil inlet pipe; 255. an oil inlet valve; 256. a communication valve; 257. a communicating pipe; 258. an oil outlet valve; 259. an oil outlet pipe; 26. a support; 27. supplementing an oil pipe; 3. a high voltage bushing; 4. a low-pressure bushing; 5. A heat sink; 6. and (7) mounting frames.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a transformer includes a transformer body 1, a set of mounting frames 6 is fixedly connected to a bottom end of the transformer body 1, an oil cooling device 2 is installed in a middle portion of a top end of the transformer body 1, a plurality of high voltage bushings 3 are disposed at an inner side of the top end of the transformer body 1 close to the oil cooling device 2, a plurality of low voltage bushings 4 are disposed at a front side of the top end of the transformer body 1 close to the high voltage bushings 3, and cooling fins 5 are disposed at front and rear sides of the transformer body 1;

the oil cooling device 2 comprises an oil conservator 21, an oil filling cover 22 is arranged in the middle of the top end of the oil conservator 21, a bent connecting pipe 23 is fixedly connected to one side, close to the oil filling cover 22, of the top end of the oil conservator 21, an oil supplementing pipe 27 is fixedly connected to one side, far away from the bent connecting pipe 23, of one end of the oil conservator 21, a group of supports 26 are arranged at the bottom end of the oil conservator 21, an oil pump 24 is fixedly connected to the bottom end of the bent connecting pipe 23, and a filtering assembly 25 is connected;

the filtering assembly 25 comprises a filter 251, wherein an oil inlet pipe 254 is fixedly connected to one end of the filter 251, an oil outlet pipe 259 is fixedly connected to the other end of the filter 251, a drain outlet 252 is formed in the bottom end of the filter 251, a drain valve 253 is arranged on the inner side of the drain outlet 252, an oil outlet valve 258 is arranged on the inner side of the oil outlet pipe 259, an oil inlet valve 255 is arranged on the inner side of the oil inlet pipe 254, a communicating pipe 257 is jointly connected to the upper ends of the oil outlet pipe 259 and the oil inlet pipe 254, and a communicating valve 256 is.

In fig. 2: the transformer body 1 includes an outer case 11, an iron core 13 is disposed inside the outer case 11, a primary winding 12 is wound around an outer side of an upper end of the iron core 13, and a secondary winding 14 is wound around an outer side of a lower end of the iron core 13, so that an input voltage can be converted.

In fig. 4: the filter 251 is provided inside with a filter element, and the drain outlet 252 is close to one side of the oil inlet valve 255, so that the circulating transformer oil can be filtered.

In fig. 4: the oil outlet valve 258 is adjacent to the outside of the communication pipe 257 and the oil inlet valve 255 is adjacent to the inside of the communication pipe 257 so that the filter 251 can be quickly backwashed.

In fig. 2 and 4: one end of the oil outlet pipe 259 is fixedly connected with the output end of the oil pump 24, and the bottom end of the oil inlet pipe 254 is fixedly connected with the top end of the outer shell 11, so that the transformer oil in the outer shell 11 can enter the filter 251.

In fig. 2 and 4: the bottom ends of the oil supply pipe 27 and the support 26 are both fixedly connected with the top end of the outer shell 11, so that the transformer oil in the oil conservator 21 can automatically enter the outer shell 11.

The utility model discloses a theory of operation: firstly, an oil filling cover 22 is opened, transformer oil is filled into an oil conservator 21, the transformer oil automatically flows into an outer shell 11 of a transformer body 1 through an oil filling pipe 27, the interior of the transformer body 1 is filled with the transformer oil, then, the transformer oil is continuously filled into the oil conservator 21, a certain amount of the transformer oil is contained in the oil conservator 21, then, the oil filling cover 22 is closed, the primary winding 12, the iron core 13 and the secondary winding 14 are insulated and radiated through the transformer oil, when the electricity consumption peak period occurs, an oil pump 24 is started, the oil pump 24 extracts the transformer oil from the outer shell 11 through a filter assembly 25, the transformer oil enters the oil conservator 21 through a bent connecting pipe 23, when the transformer oil in the outer shell 11 is reduced, the transformer oil in the oil conservator 21 automatically flows into the outer shell 11 through the oil filling pipe 27, the outer shell 11 is constantly filled with the transformer oil, the primary winding 12, the iron core 13 and the secondary winding 14 are insulated and protected by heat dissipation;

after the filtering assembly 25 is used for a period of time, the blow-off valve 253, the communication valve 256 and the oil outlet valve 258 can be opened, the oil inlet valve 255 is closed, the transformer oil in the outer shell 11 sequentially flows into the oil inlet pipe 254, the communication pipe 257 and the oil outlet pipe 259, and then flows into the oil pump 24 and the filter 251 from the oil outlet pipe 259 respectively, the transformer oil flowing into the filter 251 reversely washes the filter element in the filter 251, the washed filter residue is discharged from the blow-off outlet 252, after the washing is finished, the blow-off valve 253 and the communication valve 256 are closed, the oil inlet valve 255 is opened, at this time, the transformer oil in the outer shell 11 can sequentially flow into the oil conservator 21 through the oil inlet pipe 254, the filter 251, the oil outlet pipe 259, the oil pump 24 and the bent connection pipe 23, and then enters the oil conservator 21 for circulating cooling, and if necessary.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A transformer comprises a transformer body (1), and is characterized in that the bottom end of the transformer body (1) is fixedly connected with a group of mounting frames (6), an oil cooling device (2) is installed in the middle of the top end of the transformer body (1), a plurality of high-voltage bushings (3) are arranged on the inner side, close to the oil cooling device (2), of the top end of the transformer body (1), a plurality of low-voltage bushings (4) are arranged on the front side, close to the high-voltage bushings (3), of the top end of the transformer body (1), and cooling fins (5) are arranged on the front side and the rear side of the transformer body (1);

the oil cooling device (2) comprises an oil conservator (21), an oil filling cover (22) is arranged in the middle of the top end of the oil conservator (21), a bent connecting pipe (23) is fixedly connected to one side, close to the oil filling cover (22), of the top end of the oil conservator (21), an oil supplementing pipe (27) is fixedly connected to one side, far away from the bent connecting pipe (23), of one end of the oil conservator (21), a group of supports (26) are arranged at the bottom end of the oil conservator (21), an oil pump (24) is fixedly connected to the bottom end of the bent connecting pipe (23), and a filtering assembly (25) is connected to one end of the oil pump (24);

the filter assembly (25) comprises a filter (251), wherein an oil inlet pipe (254) is fixedly connected with one end of the filter (251), an oil outlet pipe (259) is fixedly connected with the other end of the filter (251), a drain outlet (252) is arranged at the bottom end of the filter (251), a drain valve (253) is arranged on the inner side of the drain outlet (252), an oil outlet valve (258) is arranged on the inner side of the oil outlet pipe (259), an oil inlet valve (255) is arranged on the inner side of the oil inlet pipe (254), a communicating pipe (257) is jointly connected with the upper ends of the oil outlet pipe (259) and the oil inlet pipe (254), and a communicating valve (256) is arranged on the inner side of the communicating pipe (.

2. A transformer according to claim 1, characterized in that the transformer body (1) comprises an outer casing (11), the inner part of the outer casing (11) is provided with an iron core (13), the outer side of the upper end of the iron core (13) is wound with a primary winding (12), and the outer side of the lower end of the iron core (13) is wound with a secondary winding (14).

3. A transformer according to claim 1, characterised in that the filter (251) is internally provided with a filter element, and the drain outlet (252) is located close to one side of the oil inlet valve (255).

4. The transformer according to claim 1, wherein the oil outlet valve (258) is close to the outer side of the communicating pipe (257), and the oil inlet valve (255) is close to the inner side of the communicating pipe (257).

5. The transformer according to claim 2, wherein one end of the oil outlet pipe (259) is fixedly connected with the output end of the oil pump (24), and the bottom end of the oil inlet pipe (254) is fixedly connected with the top end of the outer shell (11).

6. The transformer according to claim 2, characterized in that the bottom ends of the oil supply pipe (27) and the bracket (26) are fixedly connected with the top end of the outer shell (11).