CN112466613A

CN112466613A - Mining explosion-proof dry-type transformer

Info

Publication number: CN112466613A
Application number: CN202011267054.6A
Authority: CN
Inventors: 葛乃中; 范为超; 王翠荣
Original assignee: Yancheng Weida Transformer Manufacturing Co ltd
Current assignee: Yancheng Weida Transformer Manufacturing Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-03-09

Abstract

The invention discloses a mining flame-proof dry-type transformer, which belongs to the technical field of transformer substations and comprises a box, wherein the upper end of the box is fixedly provided with a box cover through a first bolt and a first nut, the upper end of the box cover is fixedly provided with a first cover, the upper end of the first cover is fixedly provided with a warning board through a second bolt, the front side wall of the box is fixedly provided with a nameplate through a first copper screw, the right end of the nameplate is fixedly provided with a label through a second copper screw, the right end of the front side wall of the box is fixedly provided with an iron core assembly through a coil, an insulation assembly, a low-voltage lead and a high-voltage lead, the right end of the iron core assembly is fixedly provided with a fixing plate through a third bolt, a disc spring, a square bevel washer and a second nut, the heat dissipation efficiency of a mobile transformer substation is improved, the mechanical strength of the transformer substation is increased, causing the burning of the inner coil and affecting the service life of the transformer substation.

Description

Mining explosion-proof dry-type transformer

Technical Field

The invention relates to the technical field of transformers, in particular to a mining explosion-proof dry-type transformer.

Background

The mining explosion-proof dry-type transformer adopts an H-level insulation impregnated winding and is air self-cooling type and provided with an explosion-proof shell. At present, a 6kV or 10kV voltage of a central substation is transmitted to a coal mining area through a high-voltage shielded cable in a coal mine, and then the 6kV or 10kV voltage is converted into a 3.45kV or 1.2kV voltage by a mobile substation to supply power to comprehensive mechanical coal mining electrical equipment, or the voltage is converted into a 0.693kV or 0.4kV voltage to supply power to common coal mining electrical equipment.

However, the cooling medium of the winding and the flameproof shell of the conventional flameproof dry-type transformer is air, and is a natural cooling mode, heat in the shell is transferred to the shell by convection and radiation, the heat dissipation condition is poor, and the temperature rise of the iron core, the winding and the shell is high.

Disclosure of Invention

The invention aims to provide a mining explosion-proof dry-type transformer, which aims to solve the problems that the existing explosion-proof dry-type transformer in the background technology has poor cooling mode, so that the transformer has poor heat dissipation effect, and the temperature of an inner iron core, a winding and a shell rises quickly.

In order to achieve the purpose, the invention provides the following technical scheme: a mining flame-proof dry-type transformer comprises a box, a box cover is fixedly arranged at the upper end of the box through a first bolt and a first nut, a first cover is fixedly arranged at the upper end of the box cover, a warning board is fixedly arranged at the upper end of the first cover through a second bolt, a nameplate is fixedly arranged on the front side wall of the box through a first copper screw, a label is fixedly arranged at the right end of the nameplate through a second copper screw, an iron core assembly is fixedly arranged at the right end of the front side wall of the box through a coil, an insulation assembly, a low-voltage lead and a high-voltage lead, a fixing plate is fixedly arranged at the right end of the iron core assembly through a third bolt, a disc spring, a square washer and a second nut, a second cover is fixedly arranged at the right end of the fixing plate through a fourth bolt, and a high-low-voltage interlocking wire is fixedly arranged at the lower end of the front side wall of, the fixed rubber slab that is provided with in left end of high-low pressure interlocking line, the fixed dolly that is provided with of lower extreme of case, the fixed high-tension bushing that is provided with in left end of case, high-tension bushing passes through the connection terminal assembly and the case between fixed connection, high-tension bushing's lateral wall is provided with the word tablet through copper fix with rivet, high-tension bushing's lower extreme is fixed and is provided with first wire sleeve, the fixed low-voltage heavy current sleeve that is provided with of right side wall of case, the fixed alphabet tablet that is provided with of low-voltage heavy current sheathed tube lateral wall, the fixed fourth bolt that is provided with of low-voltage heavy current sheathed tube right-hand member, the fixed second wire sleeve that is.

Preferably, the model of the first bolt is M16 × 35, the model of the second bolt is M16 × 110, the model of the third bolt is M16 × 65, the model of the fourth bolt is M16 × 35, and the model of the fifth bolt is M16 × 35.

Preferably, the first brass screw has a model number of M4 × 8, and the second brass screw has a model number of M2 × 4.

Preferably, the first nut and the second nut are both M16 in model number.

Preferably, the rubber plate is 6 × 120 × 432.

Compared with the prior art, the invention has the beneficial effects that:

through the common cooperation of high-low pressure interlocking line, rubber slab, high-tension bushing, first wire sleeve, low pressure heavy current sleeve pipe and second wire sleeve, be convenient for improve mobile substation's radiating efficiency, increase the mechanical strength of transformer substation, effectively avoid the transformer substation to be in under the higher temperature environment for a long time, cause burning out of inner coil, influence the life of transformer substation.

Drawings

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

fig. 2 is a schematic view of the internal structure of the low-voltage high-current bushing in fig. 1.

In the figure: the device comprises a box 1, a box cover 2, a first cover 3, a nameplate 4, a label 5, an iron core 6 assembly, a fixing plate 7, a second cover 8, a high-low voltage interlocking wire 9, a rubber plate 10, a trolley 11, a high-voltage bushing 12, a first wire outlet sleeve 13, a high-current bushing 14 and a second wire outlet sleeve 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, the present invention provides a technical solution: a mining flame-proof dry-type transformer comprises a box 1, a box cover 2 is fixedly arranged at the upper end of the box 1 through a first bolt and a first nut, a first cover 3 is fixedly arranged at the upper end of the box cover 2, a warning board is fixedly arranged at the upper end of the first cover 3 through a second bolt, a nameplate 4 is fixedly arranged on the front side wall of the box 1 through a first copper screw, a signboard 5 is fixedly arranged at the right end of the nameplate 4 through a second copper screw, an iron core assembly 6 is fixedly arranged at the right end of the front side wall of the box 1 through a coil, an insulation assembly, a low-voltage lead and a high-voltage lead, a fixing plate 7 is fixedly arranged at the right end of the iron core assembly 6 through a third bolt, a disc spring, a square-bevel washer and a second nut, a second cover 8 is fixedly arranged at the right end of the fixing plate 7 through a fourth bolt, a high-low-voltage interlocking wire 9 is fixedly arranged at, a rubber plate 10 is fixedly arranged at the left end of the high-low voltage interlocking wire 9, a trolley 11 is fixedly arranged at the lower end of the box 1, a high-voltage sleeve 12 is fixedly arranged at the left end of the box 1, the high-voltage sleeve 12 is fixedly connected with the box 1 through a wire holder assembly, a word plate is fixedly arranged on the side wall of the high-voltage sleeve 12 through a copper rivet, a first wire outlet sleeve 13 is fixedly arranged at the lower end of the high-voltage sleeve 12, a low-voltage large-current sleeve 14 is fixedly arranged on the right side wall of the box 1, a word plate is fixedly arranged on the side wall of the low-voltage large-current sleeve 14, a fourth bolt is fixedly arranged at the right end of the low-voltage large-;

the model of the first bolt is M16 × 35, the model of the second bolt is M16 × 110, the model of the third bolt is M16 × 65, the model of the fourth bolt is M16 × 35, and the model of the fifth bolt is M16 × 35;

the first copper screw is M4 × 8, and the second copper screw is M2 × 4;

the first nut and the second nut are both M16 in type;

the model of the rubber plate is 6 × 120 × 432.

The working principle is as follows: first wire outgoing sleeve 13, high-voltage bushing 12, the wire holder assembly, iron core assembly 6, insulating assembly, the low pressure lead wire, the high-voltage lead wire, low pressure heavy current sleeve pipe 14, second wire outgoing sleeve 15, high-low pressure interlocking line 9, mutually support between temperature relay and the lug, improve the radiating efficiency of mobile substation greatly, increase the mechanical strength of transformer substation, effectively avoid under the transformer substation is in higher temperature environment for a long time, cause the disconnection of inside coil, influence the life of transformer substation.

While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mining flame-proof dry-type transformer comprises a box (1) and is characterized in that a box cover (2) is fixedly arranged at the upper end of the box (1) through a first bolt and a first nut, a first cover (3) is fixedly arranged at the upper end of the box cover (2), a warning board is fixedly arranged at the upper end of the first cover (3) through a second bolt, a nameplate (4) is fixedly arranged on the front side wall of the box (1) through a first copper bolt, a label (5) is fixedly arranged at the right end of the nameplate (4) through a second copper bolt, an iron core assembly (6) is fixedly arranged at the right end of the front side wall of the box (1) through a coil, an insulation assembly, a low-voltage lead and a high-voltage lead, a fixing plate (7) is fixedly arranged at the right end of the iron core assembly (6) through a third bolt, a disc spring, a square washer and a second nut, a second cover (8) is fixedly arranged at the right end of the, the lower end of the front side wall of the box (1) is fixedly provided with a high-low voltage interlocking wire (9) through a lug plate, a temperature relay and a porcelain clamp piece, the left end of the high-low voltage interlocking wire (9) is fixedly provided with a rubber plate (10), the lower end of the box (1) is fixedly provided with a trolley (11), the left end of the box (1) is fixedly provided with a high-voltage sleeve (12), the high-voltage sleeve (12) is fixedly connected with the box (1) through a wiring base, the side wall of the high-voltage sleeve (12) is fixedly provided with a letter plate through a copper rivet, the lower end of the high-voltage sleeve (12) is fixedly provided with a first wire outlet sleeve (13), the right side wall of the box (1) is fixedly provided with a low-voltage large-current sleeve (14), the side wall of the low-voltage large-current sleeve (14) is fixedly provided with a letter plate, and the right end, and a second wire outlet sleeve (15) is fixedly arranged at the lower end of the low-voltage large-current sleeve (14).

2. The mining flame-proof dry-type transformer of claim 1, characterized in that: the model of first bolt is M16 × 35, the model of second bolt is M16 × 110, the model of third bolt is M16 × 65, the model of fourth bolt is M16 × 35, the model of fifth bolt is M16 × 35.

3. The mining flame-proof dry-type transformer of claim 1, characterized in that: the model of the first copper screw is M4 x 8, and the model of the second copper screw is M2 x 4.

4. The mining flame-proof dry-type transformer of claim 1, characterized in that: the first nut and the second nut are both M16 in type.

5. The mining flame-proof dry-type transformer of claim 1, characterized in that: the rubber plate (10) is 6 x 120 x 432 in model.