CN209912653U

CN209912653U - Heat dissipation type dry-type power transformer

Info

Publication number: CN209912653U
Application number: CN201921029278.6U
Authority: CN
Inventors: 周伟
Original assignee: HEFEI XINWEI ELECTRIC POWER EQUIPMENT CO Ltd
Current assignee: HEFEI XINWEI ELECTRIC POWER EQUIPMENT CO Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-01-07
Anticipated expiration: 2029-07-03

Abstract

The utility model provides a heat dissipation type dry-type power transformer, including the transformer box, transformer box top is equipped with the air intake, and transformer box lateral wall bottom is equipped with a plurality of air outlets, is equipped with the fan in the air outlet, and transformer box lateral wall bottom is located a plurality of air outlet position departments and all is equipped with the dust-proof box that covers the air outlet, dust-proof box top opening. The utility model discloses a be equipped with the air intake on transformer box top, transformer box lateral wall bottom is equipped with a plurality of air outlets, is equipped with the fan in the air outlet, and fan during operation, wind get into inside the transformer box by the air intake, and wind takes away the heat that the inside components and parts work of transformer box produced and is discharged by the air outlet, and the back row of converging in the dust-proof box is walked, can let the transformer work under suitable temperature, avoids the operation of overtemperature and life loss or even trouble that brings.

Description

Heat dissipation type dry-type power transformer

Technical Field

The utility model relates to a transformer technical field especially relates to a heat dissipation type dry-type power transformer.

Background

Dry-type transformers are widely used in local lighting, high-rise buildings, airports, wharf CNC machines and other places, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil. The cooling method is classified into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can continuously operate for a long time under the rated capacity. When forced air cooling is carried out, the output capacity of the transformer can be improved by 50 percent. The device is suitable for intermittent overload operation or emergency accident overload operation; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time.

The safe operation and the service life of the dry-type transformer depend on the safety and reliability of the insulation of the transformer winding to a great extent. The damage of the insulation caused by the temperature of the winding exceeding the insulation tolerance temperature is one of the main reasons for the failure of the transformer, so the heat dissipation of the transformer is very important.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that exists among the background art, the utility model provides a heat dissipation type dry-type power transformer.

The utility model provides a pair of heat dissipation type dry-type power transformer, including the transformer box, transformer box top is equipped with the air intake, and transformer box lateral wall bottom is equipped with a plurality of air outlets, is equipped with the fan in the air outlet, and transformer box lateral wall bottom is located a plurality of air outlet position departments and all is equipped with the dust-proof box that covers the air outlet, dust-proof box top opening.

Preferably, the opening at the top end of the dust-proof box is provided with a dust baffle inclined towards one side of the transformer box body, and a gap is reserved between the dust baffle and the transformer box body to form an air spraying opening.

Preferably, the transformer box body is located the equal interval arrangement in each dust proof box top position and has a plurality of slopes heating panel of arranging downwards, and the heating panel all is equipped with a plurality of vents near transformer box body one end.

Preferably, the distance between two adjacent heat dissipation plates is equal, the inclination angles of the plurality of heat dissipation plates are equal, and the inclination angle of the heat dissipation plate is larger than that of the dust baffle plate.

Preferably, a filter screen is arranged in the air inlet.

Preferably, the plurality of air outlets are evenly distributed circumferentially around the transformer tank.

Preferably, the diameters of the ventilation openings of the plurality of heat dissipation plates above each dust box are gradually reduced from bottom to top.

The utility model provides a heat dissipation type dry-type power transformer, through being equipped with the air intake at transformer box top, transformer box lateral wall bottom is equipped with a plurality of air outlets, is equipped with the fan in the air outlet, and during the fan work, wind gets into transformer box inside from the air intake, and wind takes away the heat that transformer box internal components and parts work produced and discharges by the air outlet, discharges after converging in the dust-proof box; set up the dust board at dust proof box opening part to set up a plurality of heating panels in dust proof box top, the wind that the dust proof incasement converges is concentrated by the wind spout mouth and spouts a plurality of heating panels on, the heat dissipation that the heating panel that the slope was arranged can be better, simultaneously because the effect of wind, can effectively avoid impurity such as dust long-pending stay on the heating panel, can let the transformer work under suitable temperature, avoid the super temperature operation and life loss or even trouble that brings.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation dry power transformer according to the present invention.

Detailed Description

Referring to fig. 1, the utility model provides a heat dissipation type dry-type power transformer, including transformer box 1, wherein:

an air inlet 2 is arranged at the top end of the transformer box body 1, and a filter screen 10 is arranged in the air inlet 2. 1 lateral wall bottom of transformer box is equipped with a plurality of air outlets 3, and a plurality of air outlets 3 are circumference evenly distributed around transformer box 1, are equipped with fan 4 in the air outlet 3, and 1 lateral wall bottom of transformer box is located 3 positions of a plurality of air outlets and all is equipped with the dust proof box 5 that covers air outlet 3, 5 top openings of dust proof box.

The utility model discloses a be equipped with air intake 2 on 1 top of transformer box, 1 lateral wall bottom of transformer box is equipped with a plurality of air outlets 3, is equipped with fan 4 in the air outlet 3, and fan 4 during operation, wind are taken away and are discharged by air outlet 3 by the heat that air intake 2 got into 1 inside of transformer box, and wind produced the work of 1 inside components and parts of transformer box, and the back row of converging in dust-proof box 5 is walked.

In this embodiment, the opening at the top end of the dust-proof box 5 is provided with a dust-blocking plate 6 inclined to one side of the transformer box 1, and a gap is left between the dust-blocking plate 6 and the transformer box 1 to form an air-jet opening 7.

In this embodiment, transformer box 1 is located the equal interval arrangement in each dust proof box 5 top position and has a plurality of slopes to arrange the heating panel 8 downwards, distance between two adjacent heating panels 8 equals, the inclination of a plurality of heating panels 8 equals and the inclination of heating panel 8 is greater than the inclination of dust board 6, heating panel 8 is close to transformer box 1 one end and all is equipped with a plurality of vents 9, according to from the orientation up down, the 9 diameters of vent of a plurality of heating panels 8 of every dust proof box 5 top reduce gradually.

Set up dust board 6 at 5 openings of dust proof box, and set up a plurality of heating panel 8 in 5 tops of dust proof box, the wind that converges in the dust proof box 5 is concentrated by blowout mouth 7 and is spouted on a plurality of heating panel 8, the heat dissipation that heating panel 8 that the slope was arranged can be better, simultaneously because the effect of wind, can effectively avoid impurity such as dust to amass on heating panel 8, can let the transformer work under suitable temperature, avoid the operation of overtemperature and life loss or even trouble that brings.

The above, 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. The utility model provides a heat dissipation type dry-type power transformer, its characterized in that, includes transformer box (1), and transformer box (1) top is equipped with air intake (2), and transformer box (1) lateral wall bottom is equipped with a plurality of air outlets (3), is equipped with fan (4) in air outlet (3), and transformer box (1) lateral wall bottom all is equipped with dust proof box (5) that cover air outlet (3) in a plurality of air outlet (3) position departments, dust proof box (5) top opening.

2. The heat dissipation dry-type power transformer of claim 1, wherein a dust guard (6) inclined toward one side of the transformer tank (1) is provided at an opening at a top end of the dust box (5), and a gap is left between the dust guard (6) and the transformer tank (1) to form an air injection opening (7).

3. The heat dissipation dry-type power transformer of claim 2, wherein the transformer tank (1) is provided with a plurality of heat dissipation plates (8) which are obliquely arranged downwards at intervals above the dust boxes (5), and one ends of the heat dissipation plates (8) close to the transformer tank (1) are provided with a plurality of ventilation openings (9).

4. The heat dissipation dry-type power transformer according to claim 3, wherein the distance between two adjacent heat dissipation plates (8) is equal, the inclination angles of the plurality of heat dissipation plates (8) are equal and the inclination angle of the heat dissipation plate (8) is greater than the inclination angle of the dust shield (6).

5. Heat dissipation type dry power transformer according to any of claims 1-4, characterized in that a filter screen (10) is arranged in the air inlet (2).

6. Heat dissipating dry-type power transformer according to any of claims 1 to 4, characterized in that the plurality of air outlets (3) are evenly distributed circumferentially around the transformer tank (1).

7. Heat dissipation type dry power transformer according to claim 3 or 4, characterized in that the diameter of the ventilation openings (9) of the plurality of heat dissipation plates (8) above each dust box (5) is gradually reduced in the direction from bottom to top.