CN212648025U

CN212648025U - Heat dissipation device of dry-type power transformer

Info

Publication number: CN212648025U
Application number: CN202021725509.XU
Authority: CN
Inventors: 杜娟; 陈晓; 夏星
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-03-02
Anticipated expiration: 2030-08-18

Abstract

The utility model relates to the technical field of transformers, and discloses a dry-type power transformer heat dissipation device, which comprises a box body, wherein a cold liquid box is arranged at the front position of the right side surface of the box body, a transformer is arranged in the box body, two clamping pieces are fixedly connected at the upper end of the transformer, two groups of high-voltage taps are fixedly connected on the right side surface of the transformer, and a high-voltage connecting piece is fixedly connected between the two groups of high-voltage taps on the right side surface of the transformer, the cold liquid box is arranged, when needed, the cold liquid can be added in the cold liquid box, the cold liquid generates cold air and flows to a cold air conveying pipe, and finally flows to the cold air pipe, the contact area between the cold air and the inner part of the box body is enlarged by the arrangement of the cold air pipe, the refrigeration effect is improved, and the refrigeration method has no generation, the method is very safe, can be implemented at any time according to the needs, is low in manufacturing cost and cannot cause waste.

Description

Heat dissipation device of dry-type power transformer

Technical Field

The utility model relates to a transformer technical field specifically is a dry-type power transformer heat abstractor.

Background

The dry type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry type transformer refers to a transformer in which AN iron core and a winding are not immersed in insulating oil, and the heat dissipation modes of the dry type transformer are divided into natural air cooling (AN) and forced air cooling (AF), but the requirements of the dry type transformer are difficult to meet by depending on the two heat dissipation modes, so that various equipment needs to be developed to meet the heat dissipation requirements.

However, the existing heat dissipation device is expensive in manufacturing cost and inconvenient to operate, and the existing heat dissipation device has no safety guarantee. Accordingly, one skilled in the art provides a heat dissipation device for a dry power transformer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type power transformer heat abstractor 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:

the utility model provides a dry-type power transformer heat abstractor, includes the box, the right side surface front position department of box installs the cold liquid case, the lid has been seted up to the upper surface of cold liquid case, the right side surface rear end position department of box installs the maintenance door, and the internally mounted of box has the transformer, two folders of the upper end fixedly connected with of transformer, the left side surface upper end fixedly connected with low pressure of folder is qualified for the next round of competitions the copper tablet, the right side surface upper end fixedly connected with high-voltage terminal of folder, the right side surface fixedly connected with two sets of high-voltage taps of transformer, and the right side surface of transformer is located the fixedly connected with high-voltage connection piece between.

As a further aspect of the present invention: the iron core is installed near upper end position department to the front surface of transformer, and the front surface intermediate position department of transformer has seted up the cooling air flue, the equal fixedly connected with supporting leg in lower surface four corners of transformer, the lower extreme fixedly connected with supporting seat of supporting leg, the fan is all installed at both ends about the upper surface of supporting seat, and the upper surface intermediate position department of supporting seat all sets up flutedly with controlling surperficial upper end position department.

As a further aspect of the present invention: the box cup joints in the outside of transformer, fixedly connected with insulating layer on the inner wall of box, and the inside upper surface mounting of box has the air conditioning conveyer pipe, a plurality of air conditioning duct has been seted up to the lower surface of air conditioning conveyer pipe.

As a further aspect of the present invention: the maintenance door is hinged to the front surface of the box body, and the maintenance door is installed on the right side of the liquid cooling box.

As a further aspect of the present invention: the bottom surface of the transformer is aligned to the groove in the middle of the upper surface of the supporting seat.

As a further aspect of the present invention: the right end of the cold air conveying pipe penetrates through the heat insulation layer and the box body and is connected with the cold liquid box, the cold air conveying pipe and the cold air pipe are both cylindrical, and the cold air conveying pipe and the cold air pipe are both members made of aluminum materials.

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

the utility model discloses a be provided with the cold liquid case, when needs, can be at its inside refrigerating fluid that adds, refrigerating fluid produces air conditioning and flows to the air conditioning conveyer pipe, flow to the cold air duct at last, the area of contact of air conditioning with the box inside has been enlarged in the setting of cold air duct, the refrigeration effect has been improved, and this kind of refrigeration method does not have the production of aqueous vapor, also do not additionally use electricity, can not influence the inside production of transformer, very safety, and can implement as required at any time, the cost is also cheap, can not cause the waste.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation device of a dry power transformer;

fig. 2 is a schematic structural diagram of a transformer in a heat dissipation device of a dry power transformer;

FIG. 3 is a cross-sectional view of a case of a heat sink for a dry power transformer;

fig. 4 is a front view of a heat sink for a dry-type power transformer.

In the figure: 1. a box body; 2. a liquid cooling tank; 3. a cover; 4. maintaining the door; 5. a transformer; 6. a clamp; 7. a high voltage terminal; 8. a low-voltage outgoing line copper plate; 9. a high-voltage connecting sheet; 10. a high voltage tap; 11. a cooling air passage; 12. an iron core; 13. a supporting seat; 14. a fan; 15. a groove; 16. a thermal insulation layer; 17. a cold air delivery pipe; 18. a cold air pipe; 19. and (5) supporting legs.

Detailed Description

Referring to fig. 1-4, in an embodiment of the present invention, a heat dissipation device for a dry power transformer includes a housing 1, the housing 1 is sleeved outside a transformer 5, a heat insulation layer 16 is fixedly connected to an inner wall of the housing 1, an air duct 17 is installed on an inner upper surface of the housing 1, a plurality of air pipes 18 are installed on a lower surface of the air duct 17, a right end of the air duct 17 penetrates through the heat insulation layer 16 and the housing 1 and is connected to a liquid cooling box 2, the air duct 17 and the air pipes 18 are both cylindrical, the air duct 17 and the air pipes 18 are made of aluminum, the liquid cooling box 2 is installed at a front position of a right side surface of the housing 1, a cover 3 is installed on an upper surface of the liquid cooling box 2, a maintenance door 4 is installed at a rear position of the right side surface of the housing 1, the maintenance door 4 is hinged to the front surface of the housing 1, and the maintenance door 4, a transformer 5 is arranged in the box body 1, an iron core 12 is arranged on the front surface of the transformer 5 near the upper end, a cooling air passage 11 is arranged at the middle position of the front surface of the transformer 5, supporting legs 19 are fixedly connected to four corners of the lower surface of the transformer 5, a supporting seat 13 is fixedly connected to the lower end of each supporting leg 19, fans 14 are arranged at the left end and the right end of the upper surface of the supporting seat 13, grooves 15 are respectively arranged at the middle position of the upper surface of the supporting seat 13 and the upper end positions of the left surface and the right surface of the supporting seat 13, the bottom surface of the transformer 5 is aligned with the groove 15 at the middle position of the upper surface of the supporting seat 13, two clamping pieces 6 are fixedly connected to the upper end of the transformer 5, a low-voltage outgoing copper plate 8 is fixedly connected to the upper end of the left, and the right side surface of the transformer 5 is located and fixedly connected with the high-voltage connecting sheet 9 between two groups of high-voltage taps 10, the transformer 5 produces hot air when working, two fans 14 are also started, air flow is blown in from the grooves 15 on the left and right side surfaces of the supporting seat 13 respectively, blown out from the grooves 15 on the upper surface of the supporting seat 13, blown into the transformer 5 and finally blown out from the cooling air channel 11 to dissipate heat in the transformer 5, meanwhile, cold liquid in the cold liquid box 2 produces cold air and flows to the cold air conveying pipe 17 and finally flows to the cold air pipe 18, and the contact area of the cold air is enlarged.

The utility model discloses a theory of operation is: during operation, open transformer 5, will produce the heat in the transformer 5, two fans 14 also can start simultaneously, blow into the recess 15 on the left and right sides surface of supporting seat 13 respectively with the air current, and blow out from the recess 15 of supporting seat 13 upper surface, blow into the inside of transformer 5, blow out from cooling air flue 11 at last, carry out the air current exchange to the inside of transformer 5, thereby dispel the heat, meanwhile, the staff can open lid 3 on the cold liquid case 2 and add the refrigerating fluid, the refrigerating fluid produces air conditioning and flows to air conditioning conveyer pipe 17, flow to cold air duct 18 at last, the area of contact of air conditioning with box 1 inside has been enlarged, and the refrigeration effect is improved.

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 dry-type power transformer heat dissipation device comprises a box body (1) and is characterized in that, a cold liquid box (2) is arranged at the front position of the right side surface of the box body (1), a cover (3) is arranged on the upper surface of the cold liquid box (2), a maintenance door (4) is arranged at the rear end position of the right side surface of the box body (1), a transformer (5) is arranged in the box body (1), the upper end of the transformer (5) is fixedly connected with two clamping pieces (6), the upper end of the left surface of the clamping piece (6) on the left side is fixedly connected with a low-voltage wire outlet copper plate (8), the upper end of the right surface of the clamping piece (6) on the right side is fixedly connected with a high-voltage terminal (7), the right side surface of the transformer (5) is fixedly connected with two groups of high-voltage taps (10), and the right side surface of the transformer (5) is positioned between the two groups of high-voltage taps (10) and is fixedly connected with a high-voltage connecting sheet (9).

2. The heat dissipation device for the dry-type power transformer as recited in claim 1, wherein an iron core (12) is installed on the front surface of the transformer (5) near the upper end, a cooling air channel (11) is opened at the middle position of the front surface of the transformer (5), the four corners of the lower surface of the transformer (5) are fixedly connected with supporting legs (19), the lower ends of the supporting legs (19) are fixedly connected with a supporting base (13), fans (14) are installed at the left and right ends of the upper surface of the supporting base (13), and grooves (15) are opened at the middle position of the upper surface of the supporting base (13) and at the upper end positions of the left and right surfaces.

3. The heat dissipation device of a dry-type power transformer as claimed in claim 1, wherein the box (1) is sleeved outside the transformer (5), the inner wall of the box (1) is fixedly connected with a heat insulation layer (16), a cool air duct (17) is installed on the upper surface of the inside of the box (1), and a plurality of cool air pipes (18) are opened on the lower surface of the cool air duct (17).

4. A dry-type power transformer radiator as claimed in claim 1, characterized in that said maintenance door (4) is hinged on the front surface of the tank (1) and the maintenance door (4) is mounted to the right of the cold liquid tank (2).

5. A dry-type power transformer heat sink as claimed in claim 2, wherein the bottom surface of the transformer (5) is aligned with the recess (15) at the middle position of the upper surface of the support (13).

6. A dry-type power transformer heat sink as claimed in claim 3, wherein the right end of the cold air duct (17) penetrates the thermal insulation layer (16) and the box body (1) and is connected to the cold liquid tank (2), the cold air duct (17) and the cold air duct (18) are both cylindrical, and the cold air duct (17) and the cold air duct (18) are both aluminum members.