CN215118559U

CN215118559U - Dry-type power transformer

Info

Publication number: CN215118559U
Application number: CN202121128599.9U
Authority: CN
Inventors: 高琼峰; 其他发明人请求不公开姓名
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-10
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a dry-type power transformer, which comprises a bottom plate, wherein the upper end surface of the bottom plate is provided with a placing rack, a transformer body is arranged on the placing rack, two sides of the upper end surface of the placing rack are oppositely provided with cooling fans, the bottom plate is provided with a protection box, one side of the inner wall of the protection box is provided with a temperature sensor, one end of the protection box is provided with an exhaust hole, an exhaust fan is arranged in the exhaust hole, the upper end surface of the protection box is provided with a rain-proof pipe, the upper end surface of the protection box is provided with a rain-proof shed, the wall surface of the protection box is provided with a vent hole, a dust-proof net is arranged in the vent hole, one side of the vent hole is connected with a waterproof door plate through a hinge, an integrated controller starts the cooling fans and the exhaust fan, the exhaust fan exhausts high-temperature gas out of the protection box, external low-temperature air enters the protection box through the vent hole, and simultaneously the cooling fans rapidly blow the low-temperature gas to the outer surface of the transformer body, so as to achieve the rapid and effective cooling operation.

Description

Dry-type power transformer

Technical Field

The utility model belongs to the technical field of the transformer, concretely relates to dry-type power transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, main components are a primary coil, a secondary coil and an iron core, and the transformer has the following main functions: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, and the like.

The iron core box winding in the dry type transformer is a main heating body, the temperature of the iron core box winding can be increased by the heat generated by the iron core box winding, the temperature of the surrounding medium can also be increased, the insulating material can be damaged when the temperature of the winding exceeds the heat-resistant limit of the insulating material, and the conventional dry type power transformer has poor heat-conducting property, easily causes the overhigh temperature of the transformer and influences the normal work of the transformer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type power transformer to there is the heat conductivility poor among the solution prior art, leads to the too high problem of transformer temperature easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dry-type power transformer, includes the bottom plate, the up end of bottom plate is provided with the rack, be provided with the transformer body on the rack, the up end both sides of rack are provided with cooling fan relatively, be provided with the guard box on the bottom plate, inner wall one side of guard box is provided with temperature-sensing ware, the one end of guard box is equipped with the hole of airing exhaust, the downthehole exhaust fan that is provided with of airing exhaust, the up end of guard box is provided with the rain pipe, the up end of guard box is provided with the weather enclosure, be equipped with the ventilation hole on the wall of guard box, be provided with the dust screen in the ventilation hole, there is waterproof door plant one side in ventilation hole through hinged joint.

Preferably, the diameter of the top plate of the rain-proof shed is larger than that of the rain-proof pipe, and one end of the rain-proof pipe is higher than the upper end face of the protection box.

Preferably, the upper end face of the bottom plate is provided with an insertion block, the lower end face of the protection box is provided with an insertion slot, and the insertion block is inserted into the insertion slot.

Preferably, an integrated controller is arranged on one surface of the protection box, and a driving module and an information processing module are integrated in the integrated controller.

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

1. the utility model discloses when the temperature in the protection box is sensed to the temperature-sensing ware, integrated control ware starts cooling fan and exhaust fan, outside the exhaust fan passes through the high-temperature gas in the protection box exhaust protection box, outside low temperature air carries out the heat exchange operation through ventilation hole entering protection box, and cooling fan blows low-temperature gas to the surface of transformer body fast simultaneously, reaches quick effectual cooling operation.

2. The utility model discloses a weather enclosure and rain-proof pipe shelter from the hole of airing exhaust, prevent that under the outdoor environment, sleet gets into the guard box in, influence transformer body normal use.

3. The utility model discloses during the installation, place the rack on the bottom plate earlier, then with transformer body and rack fixed connection, then use to lift by crane equipment and put down the guard box from the top, insert the slot with the inserted block in, accomplish equipment fixing work.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a front cut-away view A-A of FIG. 1;

fig. 3 is a sectional view of fig. 1 taken from the right side of B-B.

In the figure: 1 bottom plate, 2 racks, 3 transformer bodies, 4 cooling fans, 5 guard boxes, 6 temperature-sensing ware, 7 exhaust holes, 8 exhaust fans, 9 rain pipes, 10 weather enclosure, 11 ventilation holes, 12 dust screens, 13 waterproof door plant, 14 inserted blocks, 15 slots, 16 integrated control wares.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

FIG. 1, FIG. 2 and FIG. 3, a dry power transformer, which comprises a bottom plate 1, a placing rack 2 welded on the upper end face of the bottom plate 1, a transformer body 3 welded on the placing rack 2, cooling fans 4 welded on the left and right sides of the upper end face of the placing rack 2, the type of the cooling fans 4 being KHP560, the input ends of the cooling fans 4 being connected with a driving module of an integrated controller 16 through wires, a protection box 5 being clamped on the bottom plate 1, a temperature sensor 6 welded on the left side of the inner wall of the protection box 5, the type of the temperature sensor 6 being S305A-P, the input ends of the temperature sensors 6 being connected with the driving module of the integrated controller 16 through wires, the information output ends of the temperature sensors 6 being connected with an information processing module of the integrated controller 16 through wireless signals, an exhaust hole 7 being arranged on the top end of the protection box 5, a fan 8 being welded in the exhaust hole 7, the type of the fan 8 being LXYD exhaust-1380, the input of exhaust fan 8 passes through the drive module of connection of electric lines integrated controller 16, the up end welding of guard box 5 has rain-proof pipe 9, the up end welding of guard box 5 has weather enclosure 10, the roof diameter of weather enclosure 10 is greater than the diameter of rain-proof pipe 9, the up end 10cm that rain-proof pipe 9's top exceeds guard box 5, be equipped with ventilation hole 11 on the wall of guard box 5, the welding has dust screen 12 in the ventilation hole 11, the filter screen diameter of dust screen 12 is 5mm, there is waterproof door plant 13 in the left side of ventilation hole 11 through hinged joint.

Fig. 1, 2 and 3, plug-in block 14 has been welded to the up end of bottom plate 1, and the lower terminal surface of guard box 5 is equipped with slot 15, and plug-in block 14 slides and inserts in slot 15, and the welding has integrated controller 16 in the front of guard box 5, and the singlechip model that integrated controller 16 adopted is STM32F103T8U6, and the input of integrated controller 16 passes through the connection of electric lines power, and integrated drive module and information processing module have been integrated in the integrated controller 16 that integrated controller 16 adopted.

The working principle of the embodiment is as follows: when the temperature in the temperature-sensing ware senses guard box 5 was too high, integrated controller 16 starts cooling fan 4 and exhaust fan 8, outside exhaust fan 8 passed through exhaust hole 7 with the high-temperature gas in the guard box 5 and discharged guard box 5, outside low temperature air carried out the heat exchange operation in getting into guard box 5 through ventilation hole 11, and cooling fan 4 blows low temperature gas fast to transformer body 3's surface simultaneously, reaches quick effectual cooling operation. Shelter from hole 7 of airing exhaust through weather enclosure 10 and rain-proof pipe 9, prevent that under the outdoor environment, sleet gets into protection box 5 in, influences 3 normal use of transformer body. During installation, the placing frame 2 is placed on the bottom plate 1, then the transformer body 3 is fixedly connected with the placing frame 2, then the protection box 5 is put down from the upper side by using lifting equipment, and the insertion block 14 is inserted into the insertion slot 15 to complete equipment installation work.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A dry-type power transformer, characterized by: comprises a bottom plate (1), a placing frame (2) is arranged on the upper end surface of the bottom plate (1), a transformer body (3) is arranged on the placing rack (2), cooling fans (4) are oppositely arranged on two sides of the upper end face of the placing rack (2), a protection box (5) is arranged on the bottom plate (1), a temperature sensor (6) is arranged on one side of the inner wall of the protection box (5), one end of the protection box (5) is provided with an exhaust hole (7), an exhaust fan (8) is arranged in the exhaust hole (7), the upper end surface of the protection box (5) is provided with a rain-proof pipe (9), the upper end surface of the protection box (5) is provided with a rain-proof shed (10), the wall surface of the protection box (5) is provided with a vent hole (11), a dust screen (12) is arranged in the vent hole (11), one side of the vent hole (11) is connected with a waterproof door panel (13) through a hinge.

2. A dry-type power transformer as claimed in claim 1, in which: the diameter of a top plate of the rain-proof shed (10) is larger than that of the rain-proof pipe (9), and one end of the rain-proof pipe (9) is higher than the upper end face of the protection box (5).

3. A dry-type power transformer as claimed in claim 1, in which: the upper end face of bottom plate (1) is provided with inserted block (14), the lower terminal surface of guard box (5) is equipped with slot (15), inserted block (14) insert in slot (15).

4. A dry-type power transformer as claimed in claim 2, in which: an integrated controller (16) is arranged on one surface of the protection box (5), and a driving module and an information processing module are integrated in the integrated controller (16).