External cooling and heat dissipation device for mining explosion-proof dry-type transformer

Abstract

The invention discloses a mining explosion-proof dry-type transformer external cooling heat dissipation device, which comprises a box body, the box body is fixed on a platform, and a dry-type transformer is installed on the top of the platform and is located in the box body, and the invention relates to the technical field of dry-type transformers. According to the external cooling and heat dissipation device for the mining explosion-proof dry-type transformer, heat around the dry-type transformer is extracted in an air draft mode, the extracted air is discharged into the spraying box after being subjected to dust filtration, and the air enters the box body to cool the dry-type transformer after being sprayed and cooled by cooling water; water used for spraying and cooling enters the arc-shaped pipe when being cooled through the cooling coil, the cooling water in the arc-shaped pipe cools the periphery of the dry-type transformer, the water falls into the annular water tank to be cooled again and then is used again, hot air is cooled, double cooling can be conducted on the dry-type transformer, and the cooling efficiency of the dry-type transformer is improved. And the safety of the dry-type transformer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, in particular to an external cooling and heat dissipation device for a mine-used explosion-proof dry-type transformer. Background Art

[0002] A dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil. Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. They are mainly divided into three types: open type, closed type, and cast type. The cooling methods are natural air cooling and forced air cooling. Dry-type transformers are safe, fire-proof, pollution-free, have high mechanical strength, and are strong in short-circuit resistance. The heat dissipation methods are natural air cooling and temperature-controlled automatic heat dissipation. The operating frequency is 50 / 60HZ, and the allowable temperature rise of the coil is 100K. It is mainly composed of an iron core composed of silicon steel sheets and a coil cast with epoxy resin. An insulating tube is placed between the high and low voltage coils to increase electrical insulation, and the coil is supported and constrained by a pad. The fasteners of the overlapping parts have anti-loosening properties.

[0003] During the operation of the dry-type transformer, its windings and core will heat up under the action of electricity and magnetism. Due to the unique design and operation mode of the dry-type transformer, its own heat dissipation effect is very poor. If the heat cannot be taken away in time, it will lead to serious accidents such as burning or even explosion of the dry-type transformer. At the same time, the dry-type transformer discharges the heat generated during the operation through the heat dissipation holes, causing the discharged heat to surround the dry-type transformer, thereby affecting and reducing the heat dissipation effect of the dry-type transformer. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an external cooling and heat dissipation device for a mine explosion-proof dry-type transformer, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an external cooling and heat dissipation device for a mine explosion-proof dry-type transformer, comprising a box body, the box body is fixed on a platform, a dry-type transformer is installed on the top of the platform and inside the box body, an exhaust fan is fixedly connected to one side of the box body, and a frame is fixedly connected to the top of the box body, a spray box is fixedly connected to the top of the frame body, and a filter box is fixedly connected to the top of one side of the box body, the air outlet of the exhaust fan and the filter box are connected through a conduit, the top of the filter box is connected to an L-shaped pipe, one end of the L-shaped pipe passes through the spray box and extends to the inside of the spray box The air inlet of the exhaust fan is connected with an air inlet pipe, one end of the air inlet pipe penetrates the box body and extends to the interior of the box body, the end of the air inlet pipe extending to the interior of the box body is connected with a vertical pipe, the top of the spray box is connected with a curved pipe, and the end of the curved pipe extending to the interior of the spray box is connected with a spray pipe, the interior of the frame is fixedly connected with a cooling coil, the top of the platform and the surrounding of the dry-type transformer are fixedly connected with an annular water tank, one end of the curved pipe penetrates the annular water tank and extends to the interior of the annular water tank, the back side of the inner wall of the box body is fixedly connected to a limiting frame through a support frame, and the interior of the limiting frame is slidably connected with an arc tube.

[0006] Preferably, a vertical plate is provided on one side of the filter box, and a filter plate is fixedly connected to one side of the vertical plate.

[0007] Preferably, a suction nozzle is fixedly connected to one side of the surface of the vertical tube, and the front and rear surfaces of the L-shaped tube extending to the interior of the box are connected to horizontal tubes.

[0008] Preferably, a filter plate is provided at the bottom of the spray box, and a through hole is opened at the top of the frame, both sides of the bottom of the frame are connected with water inlet pipes, and the bottom end of the water inlet pipe is connected to the top of the arc tube surface.

[0009] Preferably, the bottom of the arc-shaped tube surface is connected to a water outlet pipe, and the bottom end of the water outlet pipe is connected to the top of the annular water tank.

[0010] Preferably, a U-shaped pipe is connected between one side of the spray box and one side of the box body, and one end of the U-shaped pipe extending to the inside of the box body is connected to an exhaust pipe.

[0011] Preferably, both sides of the box surface are hinged with box doors through hinges, and a ventilation window is provided on the top of one side of the box.

[0012] Beneficial Effects

[0013] The present invention provides an external cooling and heat dissipation device for a mine explosion-proof dry-type transformer. Compared with the prior art, it has the following beneficial effects:

[0014] The external cooling and heat dissipation device of the explosion-proof dry-type transformer for mining is fixed on the platform through a box body, a dry-type transformer is installed on the top of the platform and inside the box body, an exhaust fan is fixedly connected to one side of the box body, and a frame is fixedly connected to the top of the box body, a spray box is fixedly connected to the top of the frame, and a filter box is fixedly connected to the top of one side of the box body, an air outlet of the exhaust fan and the filter box are connected through a conduit, an L-shaped pipe is connected to the top of the filter box, one end of the L-shaped pipe passes through the spray box and extends to the inside of the spray box, an air inlet of the exhaust fan is connected to an air inlet pipe, one end of the air inlet pipe passes through the box body and extends to the inside of the box, and one end of the air inlet pipe extending to the inside of the box is connected to a vertical The top of the spray box is connected with a curved pipe, and one end of the curved pipe extending to the inside of the spray box is connected with the spray pipe, the inside of the frame is fixedly connected with a cooling coil, the top of the platform and the surrounding of the dry-type transformer are fixedly connected with an annular water tank, one end of the curved pipe penetrates the annular water tank and extends to the inside of the annular water tank, the back of the inner wall of the box is fixedly connected with a limited position frame through a support frame, and the inside of the limited frame is slidably connected with an arc pipe, the heat around the dry-type transformer is extracted by exhausting air, the extracted air is discharged to the inside of the spray box after dust filtering, and the dry-type transformer is cooled by spraying cooling water before entering the inside of the box;

[0015] The used water of spray cooling enters the arc tube when it is cooled by the cooling coil. The cooling water in the arc tube cools the surrounding of the dry-type transformer. The water falls into the annular water tank for further cooling before being reused to cool the hot air. The dry-type transformer can be doubly cooled to improve the safety of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0017] Figure 2 is a cross-sectional view of the structure of the present invention;

[0018] Figure 3 A top view of the L-shaped tube structure of the present invention;

[0019] Figure 4 A top view of the cooling coil structure of the present invention;

[0020] Figure 5 A top view of the arc tube structure of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the arc tube of the present invention;

[0022] Figure 7 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0023] In the figure: 1-box, 2-platform, 3-dry-type transformer, 4-exhaust fan, 5-frame, 6-spray box, 7-filter box, 8-duct, 9-L-shaped pipe, 10-air inlet pipe, 11-vertical pipe, 12-curved pipe, 13-spray pipe, 14-cooling coil, 15-annular water tank, 16-support frame, 17-limiting frame, 18-arc pipe, 19-vertical plate, 20-filter plate, 21-suction nozzle, 22-horizontal pipe, 23-filter residue plate, 24-through hole, 25-water inlet pipe, 26-water outlet pipe, 27-U-shaped pipe, 28-exhaust pipe, 29-box door, 30-ventilation window. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7 The present invention provides a technical solution: an external cooling and heat dissipation device for a mine explosion-proof dry-type transformer, comprising a box body 1, the box body 1 is fixed on a platform 2, a dry-type transformer 3 is installed on the top of the platform 2 and inside the box body 1, an exhaust fan 4 is fixedly connected to one side of the box body 1, and a frame 5 is fixedly connected to the top of the box body 1, a spray box 6 is fixedly connected to the top of the frame 5, and a filter box 7 is fixedly connected to the top of one side of the box body 1, the air outlet of the exhaust fan 4 is connected to the filter box 7 through a conduit 8, the top of the filter box 7 is connected to an L-shaped pipe 9, one end of the L-shaped pipe 9 passes through the spray box 6 and extends to the inside of the spray box 6, and the air inlet of the exhaust fan 4 is connected to the air inlet Tube 10, one end of the air inlet pipe 10 passes through the box body 1 and extends to the interior of the box body 1, the end of the air inlet pipe 10 extending to the interior of the box body 1 is connected to a vertical pipe 11, the top of the spray box 6 is connected to a curved pipe 12, and the end of the curved pipe 12 extending to the interior of the spray box 6 is connected to a spray pipe 13, the interior of the frame 5 is fixedly connected to a cooling coil 14, the top of the platform 2 and the surrounding of the dry-type transformer 3 are fixedly connected to an annular water tank 15, one end of the curved pipe 12 passes through the annular water tank 15 and extends to the interior of the annular water tank 15, the back of the inner wall of the box body 1 is fixedly connected to a limit frame 17 through a support frame 16, and the interior of the limit frame 17 is slidably connected to an arc tube 18.

[0026] Specifically, a plurality of spray heads are connected to the bottom of the spray pipe 13 to make the spraying more uniform.

[0027] In the present invention, a vertical plate 19 is provided on one side of the filter box 7 , and a filter plate 20 is fixedly connected to one side of the vertical plate 19 .

[0028] In the present invention, a suction nozzle 21 is fixedly connected to one side of the surface of the vertical tube 11 , and the L-shaped tube 9 extends to the surface inside the box body 1 and is connected to the horizontal tube 22 at the front and rear ends.

[0029] In the present invention, a filter plate 23 is provided at the bottom of the spray box 6, and a through hole 24 is opened at the top of the frame 5. Both sides of the bottom of the frame 5 are connected with water inlet pipes 25, and the bottom end of the water inlet pipe 25 is connected to the top of the surface of the arc tube 18.

[0030] In the present invention, the bottom of the surface of the arc tube 18 is connected to a water outlet pipe 26 , and the bottom end of the water outlet pipe 26 is connected to the top of the annular water tank 15 .

[0031] In the present invention, a U-shaped pipe 27 is connected between one side of the spray box 6 and one side of the box body 1 , and one end of the U-shaped pipe 27 extending to the inside of the box body 1 is connected to an exhaust pipe 28 .

[0032] In the present invention, both sides of the surface of the box body 1 are hinged with box doors 29 through hinges, and a ventilation window 30 is arranged on the top of one side of the box body 1.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] When in use, the exhaust fan is started, and the exhaust fan extracts the heat generated by the operation of the dry-type transformer 3 inside the box body 1 through the air inlet pipe 10, the vertical pipe 11 and the suction nozzle 21. The extracted heat enters the interior of the filter box 7 through the conduit 8, and after the impurities in the air are filtered by the filter plate 20, it is discharged into the interior of the spray box 6 through the L-shaped pipe 9. The horizontal pipes 22 on the front and rear sides of the L-shaped pipe 9 discharge the hot air, and the water sprayed by the spray pipe 13 cools the hot air;

[0035] The cooled air is blown toward the dry-type transformer 3 through the U-shaped tube 27 and the exhaust pipe 28. The water used for spraying is filtered by the filter residue plate 23 and then enters the interior of the frame 5 through the through hole 24. After being cooled by the annular water tank 15, it enters the interior of the curved tube 12 from the water inlet pipe 25 to cool the temperature around the dry-type transformer 3, and then enters the interior of the annular water tank 15 through the water outlet pipe 26. A cooling device is also provided inside the annular water tank 15. After the water is cooled, it is pumped into the interior of the curved tube 12 by a water pump to be sprayed again for cooling.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external cooling and heat dissipation device for a mine explosion-proof dry-type transformer, comprising a box (1), characterized in that: The box (1) is fixed on a platform (2); a dry-type transformer (3) is installed on the top of the platform (2) and inside the box (1); an exhaust fan (4) is fixedly connected to one side of the box (1); a frame (5) is fixedly connected to the top of the box (1); a spray box (6) is fixedly connected to the top of the frame (5); a filter box (7) is fixedly connected to the top of one side of the box (1); an air outlet of the exhaust fan (4) is connected to the filter box (7) via a conduit (8); an L-shaped pipe (9) is connected to the top of the filter box (7); one end of the L-shaped pipe (9) passes through the spray box (6) and extends to the inside of the spray box (6); an air inlet of the exhaust fan (4) is connected to an air inlet pipe (10); one end of the air inlet pipe (10) passes through the box (1); The frame (5) is provided with a cooling coil (14) fixedly connected to the interior of the frame (1), and an annular water tank (15) is fixedly connected to the top of the platform (2) and located around the dry-type transformer (3), and one end of the curved pipe (12) passes through the annular water tank (15) and extends to the interior of the annular water tank (15). The back side of the inner wall of the frame (1) is fixedly connected to a limit frame (17) through a support frame (16), and the interior of the limit frame (17) is slidably connected to an arc-shaped pipe (18).

2. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: A vertical plate (19) is provided on one side of the filter box (7), and a filter plate (20) is fixedly connected to one side of the vertical plate (19).

3. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: A suction nozzle (21) is fixedly connected to one side of the surface of the vertical tube (11), and the surface of the L-shaped tube (9) extending to the inside of the box body (1) is connected to the horizontal tube (22) at the front and rear ends.

4. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: A filter plate (23) is provided at the bottom of the spray box (6), and a through hole (24) is provided at the top of the frame (5). Both sides of the bottom of the frame (5) are connected to water inlet pipes (25), and the bottom end of the water inlet pipe (25) is connected to the top of the surface of the arc tube (18).

5. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: The bottom of the surface of the arc-shaped tube (18) is connected to a water outlet pipe (26), and the bottom end of the water outlet pipe (26) is connected to the top of the annular water tank (15).

6. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: A U-shaped pipe (27) is connected between one side of the spray box (6) and one side of the box body (1), and one end of the U-shaped pipe (27) extending to the inside of the box body (1) is connected to an exhaust pipe (28).

7. The external cooling and heat dissipation device for a mine explosion-proof dry-type transformer according to claim 1 is characterized in that: Both sides of the surface of the box body (1) are hinged with box doors (29) through hinges, and a ventilation window (30) is arranged on the top of one side of the box body (1).

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