Transformer with inner cooling channel

Abstract

The utility model provides a transformer with an inner cooling channel, which relates to the technical field of transformers, and comprises a shell, the inner side of the shell is connected with a heat conducting plate A in a sliding manner, the inner side of the heat conducting plate A is provided with a liquid cooling pipeline, the side surface of the shell is fixedly provided with a water tank, and the top end of the water tank is communicated with a water inlet bin; the top end of the water inlet bin communicates with a connecting pipe, the surface of the connecting pipe is in threaded connection with a sleeve, and a sealing ring is arranged on the surface of the sleeve. According to the utility model, by arranging the heat conducting plate A, the liquid cooling pipeline, the water tank, the water inlet bin, the connecting pipe, the sleeve, the sealing ring, the water pump, the hinge, the heat conducting plate B and the handle, an excellent liquid cooling effect can be brought to the transformer in the working process, the cooling efficiency in the transformer is improved, and when the liquid cooling pipeline needs to be overhauled and maintained, the cooling efficiency is improved. The liquid cooling pipeline can be rapidly detached and drawn out, and the effect of rapidly maintaining the liquid cooling pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer with an inner cooling channel. Background Art

[0002] The liquid cooling pipe inside the transformer is usually used to circulate the cooling medium (usually oil or other cooling liquid) into the transformer to absorb the heat generated inside the transformer and take it away. Publication No. CN213124072U discloses a dry-type transformer with high heat dissipation efficiency, including a transformer housing, a plurality of cooling pipes arranged in a vertical direction are arranged outside the transformer housing, and the plurality of cooling pipes are evenly arranged on the outer side of the transformer housing. The ends of the plurality of cooling pipes are connected in sequence to form a cooling channel, and the two ends of the cooling channel are respectively a liquid inlet and a liquid outlet, and the cooling liquid enters the cooling channel from the liquid inlet, flows along the cooling channel, and then flows out from the liquid outlet. The dry-type transformer increases the heat dissipation area of ​​the transformer housing, and the cooling liquid absorbs the heat emitted by the transformer housing during the flow in the cooling channel, which effectively improves the overall heat dissipation efficiency of the transformer. However, the cooling channel of this dry-type transformer cannot be quickly disassembled for maintenance, and it is difficult to regularly check whether the cooling channel has leakage, blockage or corrosion. And if dirt or sediment accumulates inside the cooling channel, it may reduce the cooling efficiency or even damage the cooling channel. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a transformer with an inner cooling channel, comprising a shell, a heat conducting plate A is slidably connected to the inner side of the shell, a liquid cooling pipe is arranged on the inner side of the heat conducting plate A, a water tank is fixedly installed on the side of the shell, the top of the water tank is connected to a water inlet bin, the top of the water inlet bin is connected to a connecting pipe, a sleeve is threadedly connected to the surface of the connecting pipe, a sealing ring is arranged on the surface of the sleeve, a water pump is fixedly installed on the side of the shell, a loose-leaf is fixedly installed on the bottom end of the heat conducting plate A, a heat conducting plate B is fixedly installed on the top of the loose-leaf, and a handle is fixedly installed on the side of the heat conducting plate B.

[0005] Preferably, the surface of the connecting pipe is provided with threads, the inner side of the sleeve is provided with threads, and the threads provided on the surface of the connecting pipe mesh with the threads provided on the inner side of the sleeve. Here, by providing the threads on the inner side of the sleeve, the connecting pipe can be connected to the liquid cooling pipe in coordination with the threads on the surface of the connecting pipe.

[0006] Preferably, a T-shaped groove is provided on the inner side of the liquid cooling pipe. Here, by providing the T-shaped groove of the liquid cooling pipe, a front-to-back direction limiting effect can be achieved, and the liquid cooling pipe has a higher stability after being connected with the connecting pipe.

[0007] Preferably, the water inlet of the water pump is connected to the water tank, and the water outlet of the water pump is connected to the liquid cooling pipe through a connecting pipe. Here, by setting up a water pump, the coolant in the water tank can be pumped out and pressurized, and injected into the liquid cooling pipe through the connecting pipe, thereby driving the coolant to flow in the liquid cooling pipe and absorb heat.

[0008] Preferably, the heat conducting plate A and the heat conducting plate B are made of aluminum alloy, and S-shaped grooves are provided on the inner sides of the heat conducting plate A and the heat conducting plate B. Here, the heat conducting plate A and the heat conducting plate B made of aluminum alloy have good thermal conductivity, good corrosion resistance, light weight and low cost.

[0009] Preferably, a fan is fixedly installed on the inner side of the water inlet bin, a limiting groove is provided on the inner side of the water inlet bin, a filter plate is inserted on the inner side of the limiting groove, and the side of the water inlet bin is rotatably connected to the limiting plate. Here, by providing a fan, a limiting groove, a filter plate, and a limiting plate, the coolant after absorbing heat can be air-cooled, thereby improving the cooling effect of the coolant, and at the same time preventing dust and impurities from entering the water inlet bin.

[0010] Preferably, the number of the limit plates is two groups and they are symmetrically distributed on the side of the water inlet bin. Here, by providing two groups of limit plates, the stability of the filter plate after installation can be effectively improved.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by arranging the heat conducting plate A, the liquid cooling pipe, the water tank, the water inlet bin, the connecting pipe, the sleeve, the sealing ring, the water pump, the loose-leaf, the heat conducting plate B, and the handle, not only can an excellent liquid cooling effect be brought to the transformer during operation, but also the cooling efficiency inside the transformer can be improved. Moreover, when the liquid cooling pipe needs to be inspected and maintained, the liquid cooling pipe can be quickly disassembled and pulled out, thereby achieving the effect of rapid maintenance of the liquid cooling pipe.

[0013] 2. In the utility model, by arranging a fan, a limit groove, a filter plate, and a limit piece, it is possible to provide an air cooling effect for the coolant after absorbing heat, while preventing dust and impurities in the outside air from entering the inner side of the water inlet bin, and the limit on the filter plate can be quickly released by rotating the limit piece, thereby effectively improving the efficiency of disassembly, assembly and cleaning of the filter plate, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a transformer with an internal cooling channel is proposed for the utility model;

[0015] Figure 2 An exploded diagram of a transformer with an inner cooling channel is proposed for the utility model;

[0016] Figure 3 The utility model proposes a transformer with an inner cooling channel Figure 2 A in the enlarged view;

[0017] Figure 4 The utility model proposes an exploded diagram of a heat conducting plate A and a heat conducting plate B in a transformer with an inner cooling channel;

[0018] Figure 5 The utility model provides a schematic diagram of a heat conducting plate B in a transformer with an inner cooling channel when it is opened.

[0019] Legend:

[0020] 1. Shell; 2. Heat transfer plate A; 3. Liquid cooling pipe; 4. Water tank; 5. Water inlet tank; 6. Connecting pipe; 7. Sleeve; 8. Sealing ring; 9. Water pump; 10. Loose-leaf; 11. Heat transfer plate B; 12. Handle; 13. Fan; 14. Limiting groove; 15. Filter plate; 16. Limiting piece. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-5The utility model provides a technical solution: a transformer with an inner cooling channel, comprising a shell 1, a heat conducting plate A2 is slidably connected to the inner side of the shell 1, a liquid cooling pipe 3 is arranged on the inner side of the heat conducting plate A2, and the shape of the liquid cooling pipe 3 is S-shaped, which can effectively increase the contact area between the liquid cooling pipe 3 and the heat conducting plate A2 and the heat conducting plate B11, thereby improving the heat dissipation efficiency of the transformer, a T-shaped groove is provided on the inner side of the liquid cooling pipe 3, a water tank 4 is fixedly installed on the side of the shell 1, the top of the water tank 4 is connected to a water inlet bin 5, the top of the water inlet bin 5 is connected to a connecting pipe 6, the surface of the connecting pipe 6 is threadedly connected to a sleeve 7, the surface of the connecting pipe 6 is threaded, the inner side of the sleeve 7 is threaded, and the surface of the connecting pipe 6 is threaded The thread opened is meshed with the thread opened on the inner side of the sleeve 7, and a sealing ring 8 is provided on the surface of the sleeve 7. A water pump 9 is fixedly installed on the side of the shell 1, and the water inlet end of the water pump 9 is connected with the water tank 4, and the water outlet end of the water pump 9 is connected with the liquid cooling pipe 3 through the connecting pipe 6. A loose-leaf 10 is fixedly installed on the bottom end of the heat conducting plate A2, and a heat conducting plate B11 is fixedly installed on the top end of the loose-leaf 10. The heat conducting plates A2 and B11 are both made of aluminum alloy. The heat conducting plates A2 and B11 made of aluminum alloy have good thermal conductivity and good corrosion resistance, are light in weight and low in cost. S-shaped grooves are opened on the inner sides of the heat conducting plates A2 and B11, and a handle 12 is fixedly installed on the side of the heat conducting plate B11.

[0025] Embodiment 2

[0026] See also Figure 2-3 A fan 13 is fixedly installed on the inner side of the water inlet bin 5, a limiting groove 14 is provided on the inner side of the water inlet bin 5, a filter plate 15 is inserted on the inner side of the limiting groove 14, and the side of the water inlet bin 5 is rotatably connected to a limiting piece 16. The number of the limiting pieces 16 is two groups and they are symmetrically distributed on the side of the water inlet bin 5. The fan 13 will draw in outside air to speed up the air flow rate on the surface of the coolant, thereby speeding up the cooling efficiency of the coolant, and the filter plate 15 will intercept dust and impurities in the air.

[0027] Working principle: During the operation of the transformer, a large amount of heat will be generated inside. At this time, the water pump 9 will be started. The water pump 9 will draw the coolant from the inside of the water tank 4 and pressurize it, and inject it into the liquid cooling pipe 3 through the connecting pipe 6. Then the pressurized coolant will flow from the bottom to the top through the S-shaped liquid cooling pipe 3. During this process, the heat conducting plate A2 and the heat conducting plate B11 will introduce a large amount of heat into the liquid cooling pipe 3. The heat of the liquid cooling pipe 3 will be taken away during the flow of the coolant. Then the coolant after absorbing the heat will flow into the water inlet tank 5 through the upper connecting pipe 6. During this process, the fan 13 will draw in outside air to speed up the air flow rate on the surface of the coolant, thereby speeding up the cooling efficiency of the coolant. The filter plate 15 will intercept dust and impurities in the air. When the surface of the filter plate 15 needs to be cleaned, first rotate the limit plate 16 so that it no longer presses against the filter plate 15, and then pull the filter plate 15 out along the limit groove 14 to carry out the cleaning work. When disassembling and maintaining the channel 3, first rotate the sleeve 7 in the direction of the connecting pipe 6. Under the action of the thread, the sleeve 7 will no longer abut the connection between the connecting pipe 6 and the liquid cooling pipe 3. Then pull the handle 12 to pull out the heat conducting plate A2 and the heat conducting plate B11, and drive the connection between the liquid cooling pipe 3 and the connecting pipe 6 to separate. Then rotate the heat conducting plate B11 along the hinge 10, so that the liquid cooling pipe 3 can be exposed. Then the liquid cooling pipe 3 can be pulled out for maintenance. After the maintenance, place the liquid cooling pipe 3 along the S-shaped groove on the inner side of the heat conducting plate A2, and rotate the heat conducting plate B11 in the opposite direction along the hinge 10 to make it fit with the heat conducting plate A2. Then the heat conducting plates A2 and B11 can be pushed back into the housing 1. At the same time, the T-shaped groove of the liquid cooling pipe 3 will be connected to the connecting pipe 6. Then rotate the sleeve 7 in the opposite direction and make it abut the connection between the connecting pipe 6 and the liquid cooling pipe 3 again. At this time, the installation of the liquid cooling pipe 3 is completed.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A transformer with an inner cooling channel, comprising a housing (1), characterized in that: The inner side of the shell (1) is slidably connected to a heat conducting plate A (2), and a liquid cooling pipe (3) is arranged on the inner side of the heat conducting plate A (2). A water tank (4) is fixedly mounted on the side of the shell (1), and the top end of the water tank (4) is connected to a water inlet tank (5), and the top end of the water inlet tank (5) is connected to a connecting pipe (6). The surface of the connecting pipe (6) is threadedly connected to a sleeve (7), and the surface of the sleeve (7) is provided with a sealing ring (8). A water pump (9) is fixedly mounted on the side of the shell (1), and a hinge (10) is fixedly mounted on the bottom end of the heat conducting plate A (2), and a heat conducting plate B (11) is fixedly mounted on the top end of the hinge (10), and a handle (12) is fixedly mounted on the side of the heat conducting plate B (11).

2. The transformer with inner cooling channel according to claim 1, characterized in that: The surface of the connecting pipe (6) is provided with threads, and the inner side of the sleeve (7) is provided with threads, and the threads provided on the surface of the connecting pipe (6) are meshed with the threads provided on the inner side of the sleeve (7).

3. The transformer with inner cooling channel according to claim 1, characterized in that: A T-shaped groove is provided on the inner side of the liquid cooling pipe (3).

4. The transformer with inner cooling channel according to claim 1, characterized in that: The water inlet end of the water pump (9) is connected to the water tank (4), and the water outlet end of the water pump (9) is connected to the liquid cooling pipeline (3) through a connecting pipe (6).

5. The transformer with inner cooling channel according to claim 1, characterized in that: The heat conducting plate A (2) and the heat conducting plate B (11) are both made of aluminum alloy, and an S-shaped groove is provided on the inner side of the heat conducting plate A (2) and the heat conducting plate B (11).

6. The transformer with inner cooling channel according to claim 1, characterized in that: A fan (13) is fixedly installed on the inner side of the water inlet bin (5), a limiting groove (14) is provided on the inner side of the water inlet bin (5), a filter plate (15) is inserted into the inner side of the limiting groove (14), and a side surface of the water inlet bin (5) is rotatably connected to a limiting plate (16).

7. The transformer with inner cooling channel according to claim 6, characterized in that: The number of the limiting plates (16) is two groups and they are symmetrically distributed on the side of the water inlet bin (5).

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