CN212365667U

CN212365667U - Dry-type transformer circulation ventilation shell

Info

Publication number: CN212365667U
Application number: CN202021317173.3U
Authority: CN
Inventors: 张之才
Original assignee: Kangsheng Transformer Jiangsu Co ltd
Current assignee: Kangsheng Transformer Jiangsu Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-15
Anticipated expiration: 2030-07-07

Abstract

The utility model relates to the technical field of transformers, specifically be a dry-type transformer circulation ventilation shell, which comprises an outer shell body, the inside of shell body is provided with interior casing, form the ventilation chamber between shell body and the interior casing, the middle part in ventilation chamber is provided with the baffle, the air intake has been seted up to the front side lower part of shell body, the inboard in ventilation chamber is provided with first fan, the air outlet has been seted up on the rear side upper portion of shell body, the outside of shell body is provided with the second fan, the air conditioning import has been seted up to the outside lower part of interior casing, the steam outlet has been seted up on the outside upper portion of interior casing, the rear side of shell body is provided with the ventilation case, the rear side. The utility model discloses, be equipped with interior casing, shell body, ventilation chamber, baffle, air intake, first fan, air outlet and second fan, form circulation ventilation in shell body and interior casing, carry out the thermal treatment through the transformer in the natural wind circulation internal casing, improve the radiating effect.

Description

Dry-type transformer circulation ventilation shell

Technical Field

The utility model relates to a transformer housing especially relates to a dry-type transformer circulation ventilation shell, belongs to transformer technical field.

Background

The dry type transformer mainly comprises an iron core consisting of silicon steel sheets and coils poured by epoxy resin, an insulating cylinder is arranged between high-voltage and low-voltage coils to increase electrical insulation, and the coils are supported by cushion blocks and restrained by the cushion blocks, fasteners lapped by parts of the dry type transformer have anti-loosening performance, the cooling mode of the dry type transformer is divided into natural air cooling and forced air cooling, the transformer can continuously run for a long time under rated capacity during natural air cooling, the output capacity of the transformer can be improved by 50% during forced air cooling, and the dry type transformer is suitable for intermittent overload running or emergency accident overload running; 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 the reliability of the insulation of the transformer winding to a great extent, the temperature of the winding exceeds the insulation tolerance temperature to cause the insulation damage, which is one of the main reasons for causing the transformer to be incapable of working normally, so the monitoring and the alarm control of the operation temperature of the transformer are very important.

The dry-type transformer needs heat dissipation treatment in the use process, and the existing dry-type transformer shell has no circulating ventilation function, can not well dissipate heat of the transformer and has poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dry-type transformer circulation ventilation shell is equipped with interior casing, shell body, ventilation chamber, baffle, air intake, first fan, air outlet and second fan, forms circulation ventilation in shell body and interior casing, carries out the heat dissipation through the transformer in the natural wind circulation internal casing and handles, improves the radiating effect.

In order to achieve the above object, the utility model discloses a main technical scheme include:

a circulating ventilation shell of a dry-type transformer comprises an outer shell, wherein an inner shell is fixedly arranged inside the outer shell, a ventilation cavity is formed between the outer shell and the inner shell, a partition plate is fixedly arranged in the middle of the ventilation cavity, uniformly distributed air inlets are formed in the lower portions of the two sides of the front side of the outer shell, a first fan is fixedly arranged on the inner side of the ventilation cavity corresponding to the position of the air inlets, uniformly distributed air outlets are formed in the upper portion of the rear side of the outer shell, a second fan is fixedly arranged on the outer side of the outer shell corresponding to the position of the air outlets, uniformly distributed cold air inlets are formed in the lower portion of the outer side of the inner shell, the cold air inlets are communicated with the lower portion of the ventilation cavity, uniformly distributed hot air outlets are formed in the upper portion of the outer side of, the rear side of shell body is fixed and is provided with the ventilation case, the second fan sets up the inboard of ventilation case, the rear side of ventilation case is opened and is equipped with the thermovent, the last fixed dust screen that is provided with of thermovent, evenly distributed's outlet is seted up to the bottom of ventilation case, the fixed waterproof ventilative net that is provided with on the air intake.

Preferably, the front side of the outer shell corresponds to the position of the inner shell and is hinged with a sealing door through a hinge, a door lock is arranged on the sealing door, and the joint of the outer shell and the sealing door is sealed.

Preferably, the opening is formed in the position, corresponding to the upper portion of the ventilation cavity, of the upper portions of the two sides of the outer shell, the heat dissipation shell is fixedly arranged on the outer side of the opening, the heat dissipation shell is fixedly connected with the outer shell, and the heat conduction block is fixedly arranged in the heat dissipation shell.

Preferably, the heat dissipation shell is of a downward inclined triangular structure, the joint of the heat dissipation shell and the outer shell is sealed, and the heat dissipation shell is a metal block.

Preferably, the outer side of the outer shell is provided with two side grooves, and the side grooves are arranged below the heat dissipation shell.

Preferably, the front end of the inner shell is of an open structure, and the front end of the inner shell is aligned with the sealing door.

Preferably, the joints of the partition plate, the outer shell and the inner shell are sealed.

The utility model discloses possess following beneficial effect at least:

1. through the cooperation use of interior casing, shell body, ventilation chamber, baffle, air intake, first fan, air outlet, second fan, air conditioning import and steam outlet, form circulation ventilation in shell body and interior casing, through the natural wind circulation to carry out the thermal treatment to the transformer in the interior casing, improve the radiating effect.

2. In the heat dissipation process, cold air enters from the lower part of the inner shell, heat is discharged from the upper part of the inner shell, and cold and hot air flows are separated by the partition plate, so that the heat dissipation effect is further improved.

3. Through the cooperation use of heat dissipation casing, opening and heat conduction piece, can give off the absorptive heat of heat conduction piece through metal heat dissipation casing, further improve heat dispersion.

4. Through the combined use of ventilation case, thermovent, dust screen, outlet and waterproof ventilative net, can avoid first fan and second fan to receive the rainwater influence, improve waterproof performance, guarantee transformer can normal operating.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a top cross-sectional view of the present invention;

fig. 3 is a side cross-sectional view of the present invention;

fig. 4 is a perspective view of the ventilation box of the present invention;

fig. 5 is a perspective view of the inner housing of the present invention.

In the figure, 1-outer shell, 2-ventilation box, 3-heat dissipation shell, 4-sealing door, 5-door lock, 6-air inlet, 7-waterproof breathable net, 8-buckle groove, 9-hinge, 10-inner shell, 11-ventilation cavity, 12-first fan, 13-second fan, 14-air outlet, 15-partition plate, 16-heat conduction block, 17-through opening, 18-heat dissipation opening, 19-dustproof net, 20-cold air inlet, 21-hot air outlet and 22-water outlet.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1-5, the circulating ventilation casing of the dry-type transformer provided in this embodiment includes an outer casing 1, both sides of the outer side of the outer casing 1 are respectively provided with a fastening groove 8, the fastening grooves 8 are disposed below a heat dissipation casing 3, an inner casing 10 is fixedly disposed inside the outer casing 1, a ventilation cavity 11 is formed between the outer casing 1 and the inner casing 10, a partition 15 is fixedly disposed in the middle of the ventilation cavity 11, the joints between the partition 15 and the outer casing 1 and between the partition 15 and the inner casing 10 are sealed, both lower portions of both sides of the front side of the outer casing 1 are respectively provided with uniformly distributed air inlets 6, a first fan 12 is fixedly disposed at a position of the inner side of the ventilation cavity 11 corresponding to the air inlets 6, an upper portion of the rear side of the outer casing 1 is provided with uniformly distributed air outlets 14, a second fan 13 is fixedly disposed at a position of the, the cold air inlet 20 is communicated with the lower part of the ventilation cavity 11, the upper part of the outer side of the inner shell 10 is provided with hot air outlets 21 which are uniformly distributed, the hot air outlets 21 are communicated with the upper part of the ventilation cavity 11, and through the matching use of the inner shell 10, the outer shell 1, the ventilation cavity 11, the partition 15, the air inlet 6, the first fan 12, the air outlet 14, the second fan 13, the cold air inlet 20 and the hot air outlets 21, the circulating ventilation is formed in the outer shell 1 and the inner shell 10, the transformer in the inner shell 10 is subjected to heat dissipation treatment through natural air circulation, so that the heat dissipation effect is improved, in the heat dissipation process, cold air enters from the lower part of the inner shell 10, heat is discharged from the upper part of the inner shell;

the fixed ventilation case 2 that is provided with in rear side of shell body 1, second fan 13 sets up the inboard at ventilation case 2, ventilation case 2's rear side is opened and is equipped with thermovent 18, the fixed dust screen 19 that is provided with on the thermovent 18, evenly distributed's outlet 22 is seted up to ventilation case 2's bottom, fixed waterproof ventilative net 7 that is provided with on the air intake 6, through ventilation case 2, thermovent 18, dust screen 19, outlet 22 and waterproof ventilative net 7's joint use, can avoid first fan 12 and second fan 13 to receive the rainwater influence, and waterproof performance is improved, ensure that the transformer can normal operating.

In this embodiment, as shown in fig. 1, the position of the front side of the outer shell 1 corresponding to the inner shell 10 is hinged with the sealing door 4 through the hinge 9, the door lock 5 is arranged on the sealing door 4, the joint of the outer shell 1 and the sealing door 4 is sealed, the front end of the inner shell 10 is of an open structure, and the front end of the inner shell 10 is aligned with the sealing door 4, so that the maintenance is facilitated.

In this embodiment, as shown in fig. 1 and fig. 3, an opening 17 is opened at a position corresponding to an upper portion of the ventilation cavity 11 on upper portions of two sides of an outer shell 1, a heat dissipation shell 3 is fixedly arranged on an outer side of the opening 17, the heat dissipation shell 3 is fixedly connected with the outer shell 1, a heat conduction block 16 is fixedly arranged in the heat dissipation shell 3, the heat dissipation shell 3 is of a triangle structure inclined downward, a connection portion between the heat dissipation shell 3 and the outer shell 1 is sealed, the heat dissipation shell 3 is a metal block, the heat dissipation shell 3 is used by matching the heat dissipation shell 3, the opening 17 and the heat conduction block 16, and heat absorbed by the heat conduction block 16 can be dissipated through the metal heat dissipation.

As shown in fig. 1 to 5, the steps of using the circulating ventilation enclosure of the dry-type transformer provided by the present embodiment are as follows: when in use, firstly, the transformer is arranged in the inner shell 10, then the transformer starts to work, the transformer generates heat in the working process, the first fan 12 and the second fan 13 are started, the first fan 12 sucks natural wind into the lower cavity of the ventilation cavity 11 through the air inlet 6, then the natural wind is sent into the inner shell 10 through the cold air inlet 10 to naturally cool and radiate the transformer, meanwhile, the heat generated by the transformer is upwards dispersed and discharged into the upper cavity of the ventilation cavity 11 through the hot air outlet 21, then the second fan 13 discharges the heat into the ventilation box 2 through the air outlet 14 and then discharged through the heat dissipation port 18, and the inner shell 10, the outer shell 1, the ventilation cavity 11, the partition plate 15, the air inlet 6, the first fan 12, the air outlet 14, the second fan 13, the cold air inlet 20 and the hot air outlet 21 are matched for use, so that the circulating ventilation is formed in the outer shell 1 and the inner shell 10, through the transformer of natural wind circulation in the internal casing 10 heat dissipation treatment, the radiating effect is improved, and in the radiating process, air conditioning gets into from the lower part of interior casing 10, the heat is discharged from the upper portion of interior casing 10, cold and hot air current is separated, further improve the radiating effect, simultaneously through heat dissipation casing 3, through 17 and heat conduction piece 16's cooperation is used, can give off the absorptive heat of heat conduction piece 16 through metal heat dissipation casing 3, further improve heat dispersion, when the rainwater gets into in ventilation box 2, outlet 22 can be fast with the water discharge, through ventilation box 2, thermovent 18, dust screen 19, the combined use of outlet 22 and waterproof ventilative net 7, can avoid first fan 12 and second fan 13 to receive the rainwater influence, improve waterproof performance, ensure that the transformer can normal operating.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to achieve the technical effect basically.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A circulating ventilation shell of a dry-type transformer comprises a shell body (1) and is characterized in that an inner shell (10) is fixedly arranged inside the shell body (1), a ventilation cavity (11) is formed between the shell body (1) and the inner shell (10), a partition plate (15) is fixedly arranged in the middle of the ventilation cavity (11), air inlets (6) which are uniformly distributed are formed in the lower portions of the two sides of the front side of the shell body (1), a first fan (12) is fixedly arranged at a position, corresponding to the air inlets (6), of the inner side of the ventilation cavity (11), air outlets (14) which are uniformly distributed are formed in the upper portion of the rear side of the shell body (1), and a second fan (13) is fixedly arranged at a position, corresponding to the air outlets (14), of the outer side of the shell body (1;

the lower part of the outer side of the inner shell (10) is provided with cold air inlets (20) which are uniformly distributed, the cold air inlets (20) are communicated with the lower part of the ventilation cavity (11), the upper part of the outer side of the inner shell (10) is provided with hot air outlets (21) which are uniformly distributed, and the hot air outlets (21) are communicated with the upper part of the ventilation cavity (11);

the rear side of shell body (1) is fixed and is provided with ventilation case (2), second fan (13) set up the inboard of ventilation case (2), the rear side of ventilation case (2) is opened and is equipped with thermovent (18), fixed dust screen (19) that are provided with on thermovent (18), evenly distributed's outlet (22) is seted up to the bottom of ventilation case (2), fixed waterproof ventilative net (7) that are provided with on air intake (6).

2. A dry-type transformer circulation ventilation housing according to claim 1, characterized in that: the front side face of the outer shell (1) corresponds to the position of the inner shell (10) and is hinged with a sealing door (4) through a hinge (9), a door lock (5) is arranged on the sealing door (4), and the joint of the outer shell (1) and the sealing door (4) is sealed.

3. A dry-type transformer circulation ventilation housing according to claim 1, characterized in that: opening (17) have been seted up to the outside both sides upper portion of shell body (1) correspondence position department on ventilation chamber (11) upper portion, the outside of opening (17) is fixed and is provided with heat dissipation casing (3), heat dissipation casing (3) with shell body (1) fixed connection, heat dissipation casing (3) internal fixation is provided with heat conduction piece (16).

4. A dry-type transformer circulation ventilation housing according to claim 3, characterized in that: the heat dissipation shell (3) is of a triangular structure inclined downwards, the joint of the heat dissipation shell (3) and the outer shell (1) is sealed, and the heat dissipation shell (3) is a metal block.

5. A dry-type transformer circulation ventilation housing according to claim 3, characterized in that: catching grooves (8) are formed in two sides of the outer side of the outer shell (1), and the catching grooves (8) are formed in the lower portion of the heat dissipation shell (3).

6. A dry-type transformer circulation ventilation housing according to claim 2, characterized in that: the front end of the inner shell (10) is of an opening structure, and the front end of the inner shell (10) is aligned with the sealing door (4).

7. A dry-type transformer circulation ventilation housing according to claim 1, characterized in that: the connection parts of the partition plate (15) and the outer shell (1) and the inner shell (10) are sealed.