Oil-immersed transformer protective cover convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of transformer protection, and discloses an oil-immersed transformer protective cover convenient to disassemble and assemble, which comprises a device table, supporting rods are fixedly connected to four corners of the bottom end of the device table, a platform is fixedly connected to the bottom ends of the supporting rods, and a cooling box is fixedly connected to the middle of the top end of the platform. Clamping bolts are fixedly connected to the lower sides of the left end and the right end of the protective cover body, grooves are formed in one sides of the top ends of the clamping bolts, limiting assemblies are installed at the positions, located on the outer walls of the clamping bolts, of the top end of the device table and used for limiting the positions of the clamping bolts, and elastic assemblies are installed at the positions, located on the rear sides of the clamping bolts, of the top end of the device table. The limiting assembly is used for limiting the position. According to the transformer protective cover, after the surface of the protective cover body is damaged, the protective cover body can be detached, and the situation that the damaged protective cover body continues to be used, and consequently the protective effect on the transformer body is reduced is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer protection technical field especially relates to a convenient to dismouting oil -immersed transformer protective cover. BACKGROUND

[0002] Oil -immersed transformer is a kind of transformer using oil as insulating medium and cooling medium, usually with sealed shell, install transformer oil, electromagnetic coil and core etc. Component, shell is generally made of steel plate or cast iron, to provide mechanical protection and isolation.

[0003] Through the oil pump starting up and the mineral oil in the box body inside are extracted into the circulating bin inside, the heat of the mineral oil in its inside will be transmitted into the cold row inside, the heat of the cold row is transmitted into the external environment, after the mineral oil in the circulating bin inside is cooled by the cold row, the mineral oil in the box body inside is circulated by the circulating module, to improve the heat dissipation efficiency of the mineral oil in the box body.

[0004] Based on the above patent, through the oil extraction port and the mineral oil in the box body inside are extracted into the circulating bin inside, the heat of the mineral oil in its inside will be transmitted into the cold row inside, the heat of the cold row is transmitted into the external environment, after the mineral oil in the circulating bin inside is cooled by the cold row, the mineral oil with lower temperature will be input into the box body inside through the oil outlet, the mineral oil in the box body inside is circulated by the circulating module, to improve the heat dissipation efficiency of the mineral oil in the box body. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of oil -immersed transformer protective covers convenient to dismouting, when protective cover body surface is damaged, it can be disassembled, avoid damaged protective cover body continue to use.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of oil -immersed transformer protective cover convenient to dismouting, comprising:

[0008] The device table is fixedly connected with support rods at the bottom of the four corners, the bottom of the support rod is fixedly connected with a ground table, the top of the ground table is fixedly connected with a cooling box, which provides a space for cooling the transformer oil, a refrigeration assembly is installed on the top of the ground table in front of the cooling box, which is used to reduce the temperature inside the cooling box, and the top of the cooling box is connected with the inner wall of the device table through an oil conveying assembly;

[0009] The isolation cover is fixedly connected at the top of the device table, the transformer body is installed on the inner side of the top of the device table, the protective cover body is installed on the outer side of the top of the device table, the clamps are fixedly connected on the lower side of the left and right ends of the protective cover body, the recess is formed on one side of the top of the clamp, the limiting assembly is installed on the outer wall of the top of the clamp, which is used to limit the position of the clamp, and the elastic assembly is installed on the rear side of the top of the device table, which is used to limit the position of the limiting assembly.

[0010] Further, the limiting assembly comprises a fitting plate provided on the outer side of the clamp, the fitting plate is fixedly connected at the top of the device table, the arc groove is formed on the inner wall of the fitting plate, the adapter plate is rotatably connected to the front side of the top of the fitting plate, the extension plate is fixedly connected to the rear end of the adapter plate, and the insertion hole is formed on the rear side of the inner wall of the extension plate.

[0011] Further, the shape of the lower side of the outer wall of the clamp is matched with the shape of the inner wall of the fitting plate, and the thickness of the adapter plate is the same as the distance of the inner wall of the recess.

[0012] Further, the elastic assembly comprises a limiting block provided on the rear side of the device table, the limiting block is fixedly connected at the top of the device table, the sliding bolt is slidably connected to the upper inner wall of the opposite end of the limiting block, the shape of the opposite end of the sliding bolt is matched with the shape of the inner wall of the insertion hole, the spring is fixedly connected to the opposite end of the sliding bolt, and one end of the spring is fixedly connected to the inner wall of the limiting block.

[0013] Further, the oil conveying assembly comprises an oil outlet pipe and an oil discharge pipe provided on the left and right sides of the top of the cooling box, respectively, the outer wall of the oil outlet pipe and the oil discharge pipe is fixedly connected to the inner wall of the device table on the left and right sides of the top of the device table, respectively, the bottom of the oil outlet pipe and the oil discharge pipe penetrates the inner wall of the top of the cooling box, and the oil pump is installed on the outer part of the oil outlet pipe and the oil discharge pipe.

[0014] Further, the horizontal plane of the bottom of the oil discharge pipe is lower than the horizontal plane of the bottom of the oil outlet pipe.

[0015] Further, the refrigeration assembly comprises a cooling fan fixedly connected to the top of the device table, the cooling fan is located in front of the cooling box, the rear end of the cooling fan is fixedly connected with a wind conveying pipe, and the rear end of the wind conveying pipe is fixedly connected to the lower side of the front end of the cooling box.

[0016] Further, the inner wall of the cooling box is fixedly connected with a temperature guide plate in the middle part, which is used for isolating the transformer oil and the cold air generated by the air cooler.

[0017] The utility model has the advantages of the following:

[0018] In the utility model, when the surface of the protective cover body is damaged, the protective cover body can be disassembled to avoid the damaged protective cover body from being continuously used, thereby reducing the protection effect on the transformer body, and the disassembly method is simple and effective, which can improve the efficiency of replacement work.

[0019] In the utility model, the air cooler generates cold air to cool and lower the temperature of the transformer oil in the cooling box, thereby improving the heat dissipation efficiency of the transformer oil and avoiding the continuous high temperature of the transformer oil, which affects the normal operation of the transformer body. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A three-dimensional view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0021] Figure 2 A device table structure schematic view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0022] Figure 3 A device table sectional view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0023] Figure 4 A half sectional view of the cooling box of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0024] Figure 5 A limiting block sectional view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0025] Figure 6 An embedded plate structure schematic view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model;

[0026] Figure 7 A clamping bolt structure schematic view of the oil-immersed transformer protective cover convenient to disassemble is provided for the utility model.

[0027] LEGEND:

[0028] 1, shield body; 2, device table; 3, base; 4, support rod; 5, air cooler; 6, cooling box; 7, clamping bolt; 8, fitting plate; 9, adapter plate; 10, limiting block; 11, isolation cover; 12, transformer body; 13, oil outlet pipe; 14, oil discharge pipe; 15, air delivery pipe; 16, temperature guide plate; 17, oil pump; 18, spring; 19, sliding bolt; 20, extension plate; 21, insertion hole; 22, arc groove; 23, groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Referring to Figure 1 , Figure 2 and Figure 7 , the utility model provides an embodiment: a kind of oil-immersed transformer protective cover of easy disassembly, comprising: device table 2, device table 2 bottom end four corners are fixedly connected with support rod 4, support rod 4 bottom end is fixedly connected with base 3, base 3 top end middle part is fixedly connected with cooling box 6, for providing the space of cooling transformer oil, isolation cover 11 bottom end is fixedly connected in device table 2 top end, device table 2 top end is located inside isolation cover 11 and is equipped with transformer body 12, device table 2 top end is located outside isolation cover 11 and is equipped with protective cover body 1, protective cover body 1 left and right two ends lower side is fixedly connected with clamping bolt 7, recess 23 is formed in one side of clamping bolt 7 top end, referring to Figure 5 , Figure 6 , fitting plate 8 is equipped outside clamping bolt 7, fitting plate 8 bottom end is fixedly connected in device table 2 top end, arc groove 22 is formed in the upper side of the inner wall of fitting plate 8, adapter plate 9 is rotatably connected to the front side of the top end of fitting plate 8, extension plate 20 is fixedly connected to the rear end of adapter plate 9, insertion hole 21 is formed in the rear side of the inner wall of extension plate 20, the shape of the lower side of the outer wall of clamping bolt 7 is matched with the shape of the inner wall of fitting plate 8, the thickness of adapter plate 9 is same with the distance of the inner wall of recess 23, limiting block 10 is equipped at the rear side of device table 2, limiting block 10 bottom end is fixedly connected in device table 2 top end, sliding bolt 19 is slidably connected to the upper side inner wall of the opposite end of limiting block 10, the shape of the opposite end of sliding bolt 19 is matched with the shape of the inner wall of insertion hole 21, spring 18 is fixedly connected to the opposite end of sliding bolt 19, and one end of spring 18 is fixedly connected to the inner wall of limiting block 10.

[0031] Specifically, by pressing the two sliding bolts 19 into the limiting block 10 and squeezing the spring 18, after the sliding bolts 19 are disengaged from the insertion hole 21, the adapter plate 9 is rotated to move it away from the inner wall of the groove 23, thereby releasing the limitation on the two locking bolts 7. Then, the protective cover body 1 is lifted up and removed from the outside of the isolation cover 11, and then a protective cover body 1 of the same specification is replaced and installed.

[0032] Reference Figure 3 , Figure 4 The top of the cooling box 6 has an oil outlet pipe 13 and an oil drain pipe 14 on the left and right sides respectively. The outer walls of the oil outlet pipe 13 and the oil drain pipe 14 are fixedly connected to the inner walls of the isolation cover 11 at the top of the device platform 2. The bottom ends of the oil outlet pipe 13 and the oil drain pipe 14 penetrate the inner wall of the top of the cooling box 6. An oil pump 17 is installed outside the oil outlet pipe 13 and the oil drain pipe 14. The horizontal plane of the bottom end of the oil drain pipe 14 is lower than the horizontal plane of the bottom end of the oil outlet pipe 13. The top of the device platform 2 is fixedly connected to a cold air fan 5, which is located in front of the cooling box 6. The rear end of the cold air fan 5 is fixedly connected to an air supply pipe 15, which is fixedly connected to the lower front end of the cooling box 6. The middle of the inner wall of the cooling box 6 is fixedly connected to a temperature guide plate 16, which is made of copper and is used to isolate the transformer oil and the cold air generated by the cold air fan 5.

[0033] Specifically, the oil pump 17 on the oil outlet pipe 13 is started to draw transformer oil into the upper cavity of the cooling box 6. At the same time, the air cooler 5 is started to generate cold air and discharge it into the lower cavity of the cooling box 6 through the air duct 15. As the cold air flows in continuously, the internal temperature of the cooling box 6 decreases. Then, the temperature is transferred through the heat conduction plate 16, thereby reducing the temperature of the transformer oil in the cooling box 6. After that, the oil pump 17 on the oil drain pipe 14 is started to draw the transformer oil in the cooling box 6 back into the isolation cover 11. Then, the transformer oil in the isolation cover 11 is continuously drawn to achieve cyclic cooling and improve its heat dissipation efficiency. The valve of the drain pipe on one side of the cooling box 6 is opened to discharge the condensate generated during the cooling process.

[0034] Working principle: first, when the transformer main body 12 continues to work, heat will be generated, and the transformer oil filled in the isolation cover 11 temperature will rise, at this time the oil pump 17 on the oil outlet pipe 13 is started to pump the transformer oil into the upper cavity of the cooling box 6, at the same time the cooling fan 5 is started, and the cold air is generated and discharged into the lower cavity of the cooling box 6 along the air pipe 15, with the continuous inflow of cold air, the temperature inside the cooling box 6 is reduced, then the temperature is transmitted through the temperature guide plate 16, so that the temperature of the transformer oil in the cooling box 6 is reduced, then the oil pump 17 on the oil outlet pipe 14 is started to pump the transformer oil in the cooling box 6 back into the isolation cover 11, then the transformer oil in the isolation cover 11 is continuously pumped out, realizing the circulating cooling, improving the heat dissipation efficiency, when the protective cover body 1 outer surface is damaged, the two side slide bolts 19 are pressed into the limiting block 10 respectively and extrude the spring 18, when the slide bolt 19 is separated from the insertion hole 21, the adapter plate 9 is rotated to be away from the inner wall of the groove 23, thereby releasing the limiting of the two side clamping bolts 7, then the protective cover body 1 is lifted to be taken out from the outside of the isolation cover 11, then the same specification protective cover body 1 is replaced and installed.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An oil-immersed transformer protection cover which is easy to assemble and disassemble, characterized by comprising: The utility model relates to a transformer oil cooling device, including: Device table (2), bottom end four corners fixedly connected with support rod (4), bottom end fixedly connected with ground table (3), top end middle part fixedly connected with cooling box (6) for providing the space of transformer oil cooling, the top end of ground table (3) is located cooling box (6) front side installation refrigeration subassembly, for reducing the temperature inside cooling box (6), cooling box (6) top end is connected with device table (2) inner wall through oil delivery subassembly; Isolation cover (11), bottom end fixedly connected in device table (2) top end, device table (2) top end is located isolation cover (11) inner side installation transformer main body (12), device table (2) top end is located isolation cover (11) outer side installation protective cover body (1), protective cover body (1) left and right two ends lower side fixedly connected with clavus (7), clavus (7) top end one side is equipped with recess (23), device table (2) top end is located clavus (7) outer wall installation limiting component, for limiting the position of clavus (7), device table (2) top end is located clavus (7) rear side installation elastic component, for limiting the position of limiting component.

2. The oil-immersed transformer protective cover convenient to disassemble according to claim 1, characterized in that: The limiting component includes a fitting plate (8) provided outside the clavus (7), the fitting plate (8) is fixedly connected to the top end of the device table (2), an arc groove (22) is formed in the inner wall of the fitting plate (8), a transfer plate (9) is rotatably connected to the front side of the top end of the fitting plate (8), an extension plate (20) is fixedly connected to the rear end of the transfer plate (9), and a plug hole (21) is formed in the rear inner wall of the extension plate (20).

3. The oil-immersed transformer protection cover convenient to disassemble according to claim 2, characterized in that: The shape of the lower side of the clavus (7) outer wall is matched with the shape of the inner wall of the fitting plate (8), and the thickness of the transfer plate (9) is the same as the distance of the inner wall of the recess (23).

4. The oil-immersed transformer protection cover convenient to disassemble according to claim 1, characterized in that: The elastic component includes a limiting block (10) provided at the rear side of the device table (2), the limiting block (10) is fixedly connected to the top end of the device table (2), a slide bolt (19) is slidably connected to the upper inner wall of the opposite end of the limiting block (10), the shape of the opposite end of the slide bolt (19) is matched with the shape of the inner wall of the plug hole (21), a spring (18) is fixedly connected to the opposite end of the slide bolt (19), and one end of the spring (18) is fixedly connected to the inner wall of the limiting block (10).

5. The oil-immersed transformer protection cover convenient to disassemble according to claim 1, characterized in that: The oil delivery component includes an oil outlet pipe (13) and an oil discharge pipe (14) provided at the left and right sides of the top end of the cooling box (6), respectively, the outer wall of the oil outlet pipe (13) and the oil discharge pipe (14) is fixedly connected to the inner wall of the isolation cover (11) on both sides of the top end of the device table (2), the bottom end of the oil outlet pipe (13) and the oil discharge pipe (14) penetrates the inner wall of the top end of the cooling box (6), and an oil pump (17) is installed outside the oil outlet pipe (13) and the oil discharge pipe (14).

6. The oil-immersed transformer protection cover convenient to disassemble according to claim 5, characterized in that: The horizontal plane of the bottom end of the oil discharge pipe (14) is lower than the horizontal plane of the bottom end of the oil outlet pipe (13).

7. The oil-immersed transformer protection cover convenient to disassemble according to claim 1, characterized in that: The refrigeration assembly comprises a cooling fan (5) fixedly connected at the top end of the device table (2), the cooling fan (5) is located at the front side of the cooling box (6), the rear end of the cooling fan (5) is fixedly connected with a wind delivery pipe (15), and the rear end of the wind delivery pipe (15) is fixedly connected to the front end of the cooling box (6) on the lower side.

8. The oil-immersed transformer protection cover convenient to disassemble according to claim 1, characterized in that: The inner wall of the cooling box (6) is fixedly connected with a temperature guide plate (16) at the middle portion, so as to isolate the transformer oil and the cold air generated by the cooling fan (5).

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