CN212032818U

CN212032818U - Water-cooling and air-cooling heat dissipation system of dry-type transformer

Info

Publication number: CN212032818U
Application number: CN202020899909.6U
Authority: CN
Inventors: 王磊
Original assignee: Wuxi Yinow Electric Equipment Co ltd
Current assignee: Wuxi Yinow Electric Equipment Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-11-27
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a water-cooling adds air-cooled cooling system of dry-type transformer, be fixed with lower folder on the base, be fixed with the core post on lower folder, be fixed with upper folder at the upper end of core post, the core post outside between lower folder and upper folder is equipped with high-voltage coil, be equipped with down the cushion between the lower tip of high-voltage coil and lower folder, be equipped with the upper cushion between the upper end of high-voltage coil and upper folder, high-voltage coil links to each other with the lead copper bar, the lead copper bar is fixed on upper folder, be equipped with the insulator between lead copper bar and upper folder, correspond high-pressure side and low-pressure side and all install the crossflow top-blown fan on the base; a cooling air passage is arranged in the high-voltage coil, and a cooling water pipe is arranged in the cooling air passage. The utility model discloses an inside temperature of reduction dry-type transformer that water-cooling adds forced air cooling's heat radiation structure can be very fast, the influence of the high temperature to transformer life that has significantly reduced.

Description

Water-cooling and air-cooling heat dissipation system of dry-type transformer

Technical Field

The utility model relates to a cooling system of dry-type transformer, specifically speaking are water-cooling adds forced air cooling system of dry-type transformer.

Background

The dry-type power transformer is a dry-type transformer with high electrical strength, mechanical strength and heat-resisting strength, is an excellent product for transforming an urban power grid, and is particularly suitable for important places requiring fire prevention, explosion prevention and moisture prevention, such as high-rise buildings, airports, power stations, commercial centers and the like. When the transformer operates, a part of electromagnetic energy is converted into heat, but the overhigh temperature can accelerate the insulation of the transformer to be rapidly degraded, so that the service life of the transformer is shortened. It follows that it is extremely important to reduce the temperature rise of the transformer.

Disclosure of Invention

The utility model aims at overcoming the not enough of existence among the prior art, provide a simple structure and cooling effect good, can increase of service life's dry-type transformer's water-cooling adds forced air cooling system.

According to the technical scheme provided by the utility model, the water-cooling and air-cooling heat dissipation system of the dry-type transformer comprises a base, a lower clamping piece, a lower cushion block, a high-voltage coil, an iron core column, a cooling water pipe, a water cooler, an upper cushion block, an upper clamping piece, an insulator, a lead copper bar and a cross flow top blowing type fan; a lower clamping piece is fixed on the base, an iron core column is fixed on the lower clamping piece, an upper clamping piece is fixed at the upper end of the iron core column, a high-voltage coil is arranged outside the iron core column between the lower clamping piece and the upper clamping piece, a lower cushion block is arranged between the lower end of the high-voltage coil and the lower clamping piece, an upper cushion block is arranged between the upper end of the high-voltage coil and the upper clamping piece, the high-voltage coil is connected with a lead copper bar, the lead copper bar is fixed on the upper clamping piece, an insulator is arranged between the lead copper bar and the upper clamping piece, and cross-flow top-blowing type fans are arranged on the base corresponding to the high;

the high-voltage coil is internally provided with a cooling air passage which penetrates through the upper end surface and the lower end surface of the high-voltage coil, a cooling water pipe which is longitudinally arranged is arranged in the cooling air passage, the water outlet end of the cooling water pipe is connected with the water inlet end of the water cooler, and the water outlet end of the water cooler is connected with the water inlet end of the cooling water pipe.

Preferably, the water inlet end of the cooling water pipe is positioned below the high-voltage coil, and the water outlet end of the cooling water pipe is positioned above the high-voltage coil.

Preferably, the cooling water pipe located in the cooling air passage has at least one section of ascending pipe and one section of descending pipe. Further preferably, the cooling water pipe is located in the middle of the cooling air passage, and air circulation channels are arranged on two sides of the cooling air passage.

The utility model discloses optimized dry-type transformer's heat dissipation cooling, changed the natural cooling that traditional transformer adopted and the design of forced air cooling, the inside temperature of reduction dry-type transformer that water cooling adds the heat radiation structure of forced air cooling can be very fast, significantly reduced the influence of high temperature to transformer life. And the water cooler enables cooling water to be recycled, so that the energy is saved and the environment is protected.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the coil of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

A water-cooling and air-cooling heat dissipation system of a dry type transformer comprises a base 1, a lower clamping piece 2, a lower cushion block 3, a high-voltage coil 4, an iron core column 5, a cooling water pipe 6, a water cooler 7, an upper cushion block 8, an upper clamping piece 9, an insulator 10, a lead copper bar 11 and a cross flow top blowing type fan; a lower clamping piece 2 is fixed on a base 1, an iron core column 5 is fixed on the lower clamping piece 2, an upper clamping piece 9 is fixed at the upper end of the iron core column 5, a high-voltage coil 4 is arranged outside the iron core column 5 between the lower clamping piece 2 and the upper clamping piece 9, a lower cushion block 3 is arranged between the lower end of the high-voltage coil 4 and the lower clamping piece 2, an upper cushion block 8 is arranged between the upper end of the high-voltage coil 4 and the upper clamping piece 9, the high-voltage coil 4 is connected with a lead copper bar 11, the lead copper bar 11 is fixed on the upper clamping piece 9, an insulator 10 is arranged between the lead copper bar 11 and the upper clamping piece 9, and a cross-flow top-blowing type fan is arranged on the base 1 corresponding to the;

a cooling air passage 41 penetrating through the upper end surface and the lower end surface of the high-voltage coil 4 is arranged in the high-voltage coil, a cooling water pipe 6 longitudinally arranged is arranged in the cooling air passage 41, the water outlet end of the cooling water pipe 6 is connected with the water inlet end of the water cooler 7, and the water outlet end of the water cooler 7 is connected with the water inlet end of the cooling water pipe 6.

The water inlet end of the cooling water pipe 6 is positioned below the high-voltage coil 4, and the water outlet end of the cooling water pipe 6 is positioned above the high-voltage coil 4.

The cooling water pipe 6 in the cooling air duct 41 has at least one section of ascending pipe and one section of descending pipe.

The cooling water pipe 6 is located in the middle of the cooling air passage 41, and both sides of the cooling air passage 41 are provided with air circulation channels.

The utility model discloses install the condenser tube 6 of being made by the material that heat conductivity and insulating nature are good in the cooling air flue 41 of the high-tension coil 4 of transformer, the back that finishes is installed, passes through condenser tube 6 with microthermal water by water cooler 7 and gets into high-tension coil 4 from the bottom, absorbs the heat that produces when high-tension coil 4 moves. The water heated after absorbing heat enters a water cooler 7 through the water outlet end of a cooling water pipe 6 positioned above the upper end part of the high-voltage coil 4, and enters circulation after being cooled again.

The crossflow top-blowing type fan originally installed below the high-voltage coil 4 cools through the residual space of the cooling air passage 41 (namely, the cooling air passages 41 on the two side parts of the cooling water pipe 6. when the cooling purpose is achieved by accelerating the air flow speed in the cooling air passage 41, the water in the cooling water pipe 6 can be cooled to a certain extent, so that the cooling effect of the transformer is better.

Claims

1. A water-cooling and air-cooling heat dissipation system of a dry-type transformer comprises a base (1), a lower clamping piece (2), a lower cushion block (3), a high-voltage coil (4), an iron core column (5), a cooling water pipe (6), a water cooler (7), an upper cushion block (8), an upper clamping piece (9), an insulator (10), a lead copper bar (11) and a cross flow top-blowing type fan; a lower clamping piece (2) is fixed on a base (1), an iron core column (5) is fixed on the lower clamping piece (2), an upper clamping piece (9) is fixed at the upper end of the iron core column (5), a high-voltage coil (4) is arranged outside the iron core column (5) between the lower clamping piece (2) and the upper clamping piece (9), a lower cushion block (3) is arranged between the lower end of the high-voltage coil (4) and the lower clamping piece (2), an upper cushion block (8) is arranged between the upper end of the high-voltage coil (4) and the upper clamping piece (9), the high-voltage coil (4) is connected with a lead copper bar (11), the lead copper bar (11) is fixed on the upper clamping piece (9), an insulator (10) is arranged between the lead copper bar (11) and the upper clamping piece (9), and a cross-flow top-blowing type fan is arranged on the base (1) corresponding to a high-;

the method is characterized in that: a cooling air passage (41) penetrating through the upper end surface and the lower end surface of the high-voltage coil (4) is arranged in the high-voltage coil, a cooling water pipe (6) which is longitudinally arranged is arranged in the cooling air passage (41), the water outlet end of the cooling water pipe (6) is connected with the water inlet end of the water cooler (7), and the water outlet end of the water cooler (7) is connected with the water inlet end of the cooling water pipe (6).

2. The water-cooling and air-cooling heat dissipation system of the dry-type transformer as recited in claim 1, wherein: the water inlet end of the cooling water pipe (6) is positioned below the high-voltage coil (4), and the water outlet end of the cooling water pipe (6) is positioned above the high-voltage coil (4).

3. The water-cooling and air-cooling heat dissipation system of the dry-type transformer as recited in claim 1 or 2, wherein: the cooling water pipe (6) in the cooling air flue (41) at least comprises a section of ascending pipe and a section of descending pipe.

4. The water-cooling and air-cooling heat dissipation system of the dry-type transformer as recited in claim 3, wherein: the cooling water pipe (6) is located in the middle of the cooling air passage (41), and air circulation channels are arranged on two sides of the cooling air passage (41).