CN215680332U

CN215680332U - Circulating oil cooling device for transformer

Info

Publication number: CN215680332U
Application number: CN202121506980.4U
Authority: CN
Inventors: 刘伊明
Original assignee: Luoyang Xingniu Transformer Co ltd
Current assignee: Luoyang Xingniu Transformer Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-28
Anticipated expiration: 2031-07-05

Abstract

The utility model relates to a circulating oil cooling device for a transformer, which belongs to the technical field of transformer heat dissipation and comprises a fixed shell, a transformer body and a circulating oil cooling mechanism, wherein one side of the fixed shell is provided with an opening, the transformer body is arranged in the fixed shell, heat dissipation fins are arranged on the outer side of the transformer body, the circulating oil cooling mechanism comprises a protective shell and a circulating oil cooling assembly, the protective shell is fixedly arranged at the opening of the fixed shell, the circulating oil cooling assembly is arranged in the protective shell, and the circulating oil cooling assembly comprises a circulating pump, a heat dissipation device, a communicating pipe and a heat absorption device. According to the utility model, the oil in the heat dissipation device and the heat absorption device can be in a circulating flow state through the circulating pump, in the circulating flow process, the heat of the heat dissipation fins is absorbed through the heat absorption device, and the heat of the oil is transferred to the air around the heat dissipation device through the heat dissipation device, so that the function of heat dissipation of the transformer is realized.

Description

Circulating oil cooling device for transformer

Technical Field

The utility model relates to the technical field of transformer heat dissipation, in particular to a circulating oil cooling device for a transformer.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.). In daily life, the secondary side of a driving circuit of a transformer is coupled with a main circuit, so that the driving circuit needs to be isolated, and the heat dissipation of the driving circuit is also a problem.

At present, in order to guarantee the heat dissipation effect of a transformer, an oil cooling heat dissipation mode is mainly adopted, the traditional oil cooling heat dissipation device cannot meet the current requirements, a water cooling or air cooling device is additionally arranged on the basis of the oil cooling heat dissipation device for the current transformer, the cooling of the transformer is realized by matching with oil cooling, but an external water cooling or air cooling device not only leads to the size of the transformer to be enlarged, but also increases the energy consumption, and particularly the size of the transformer of the external water cooling device is larger.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a circulating oil cooling device for a transformer.

The utility model realizes the purpose through the following technical scheme:

the utility model provides a cold device of circulation oil that transformer was used, including fixed shell, the transformer body, fixed shell one side opening, and internally mounted has the transformer body, the transformer body outside is provided with heat radiation fins, still include the cold mechanism of circulation oil, the cold mechanism of circulation oil includes protecting sheathing, the cold subassembly of circulation oil, protecting sheathing fixed mounting is at the opening part of fixed shell, and protecting sheathing internally mounted has the cold subassembly of circulation oil, the cold subassembly of circulation oil includes the circulating pump, a heat abstractor, communicating pipe, heat sink, the play liquid end intercommunication of circulating pump has heat abstractor, feed liquor end intercommunication has the heat sink of absorbing heat radiation fins's heat, the one end that circulating pump was kept away from to heat abstractor and heat sink is kept away from the one end of circulating pump and is passed through communicating pipe.

Preferably, heat abstractor includes out liquid head, cooling tube, liquid inlet head, through pipe, goes out the liquid head and sets up with the liquid inlet head relatively, and goes out liquid head and circulating pump intercommunication, liquid inlet head and communicating pipe intercommunication, goes out the intercommunication between liquid head and the liquid inlet head and has through pipe, and the through outside of tubes side is provided with the cooling tube of two at least spiral settings, and crisscross setting between the cooling tube, and each other contactless, the cooling tube both ends respectively with go out liquid head and liquid inlet head intercommunication.

Preferably, the straight-through pipe is provided with two sections, an airflow generator is arranged between the two sections and comprises an installation pipe fitting, an inner rotating sleeve and an outer rotating sleeve, the installation pipe fitting is connected between the two sections of straight-through pipes in a sealing mode, an inner annular groove is formed in the inner wall of the installation pipe fitting, the inner side of the inner annular groove is connected with the inner rotating sleeve in a rotating mode, an outer annular groove is formed in the outer wall of the installation pipe fitting, the inner side of the outer annular groove is connected with the outer rotating sleeve in a rotating mode, fan blades are arranged on the inner wall of the inner rotating sleeve and the outer wall of the outer rotating sleeve, a plurality of permanent magnets which are arranged at equal angles are embedded in the outer wall of the inner rotating sleeve and the inner wall of the outer rotating sleeve, and the permanent magnets are located in the inner rotating sleeve.

Preferably, the heat absorbing device comprises a shunting box, heat absorbing pipes and a flow gathering box, the shunting box is communicated with the communicating pipe, the flow gathering box is communicated with the liquid inlet end of the circulating pump, a plurality of heat absorbing pipes are communicated between the shunting box and the flow gathering box, and the heat absorbing pipes are in contact with the heat radiating fins.

Preferably, the heat absorbing pipe and the heat radiating pipe are aluminum pipes or copper pipes.

Preferably, the protective casing is provided with air inlet and outlet grids at positions at two ends of the heat sink.

Has the advantages that:

1. the oil in the heat dissipation device and the heat absorption device can be in a circulating flow state through the circulating pump, in the circulating flow process, the heat of the heat dissipation fins is absorbed through the heat absorption device, and the heat of the oil is transferred to the air around the heat dissipation device through the heat dissipation device, so that the function of heat dissipation of the transformer is realized;

2. the radiating pipes are arranged in a plurality of spiral mode, the surface area of unit oil is increased, flowing time of the oil in the radiating process is prolonged, and radiating efficiency is improved.

Additional features of the utility model and advantages thereof will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the circulating oil cooling mechanism of the present invention;

FIG. 3 is a schematic structural view of the circulating oil cooling assembly of the present invention;

FIG. 4 is a front view of the circulating oil cooling assembly of the present invention;

FIG. 5 is a sectional view A-A of FIG. 4;

fig. 6 is an enlarged view of part I of fig. 5.

The reference numerals are explained below:

1. fixing the housing; 2. a transformer body; 3. a circulating oil cooling mechanism; 31. a protective housing; 32. a circulating oil cooling assembly; 321. a circulation pump; 322. a heat sink; 3221. a liquid outlet head; 3222. a radiating pipe; 3223. a liquid inlet head; 3224. a straight-through pipe; 3225. installing the pipe fitting; 3226. an inner rotary sleeve; 3227. an outer rotating sleeve; 323. a communicating pipe; 324. a heat sink; 3241. a shunt box; 3242. a heat absorbing tube; 3243. a flow gathering box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the first embodiment, as shown in fig. 1, fig. 2 and fig. 3, a circulating oil cooling device for a transformer includes a fixed housing 1, a transformer body 2, one side of the fixed housing 1 is open, the transformer body 2 is installed inside the fixed housing, heat dissipation fins are disposed on the outer side of the transformer body 2, and a circulating oil cooling mechanism 3, where the circulating oil cooling mechanism 3 includes a protective housing 31 and a circulating oil cooling assembly 32, the protective housing 31 is fixedly installed at the opening of the fixed housing 1, the circulating oil cooling assembly 32 is installed inside the protective housing 31, the circulating oil cooling assembly 32 includes a circulating pump 321, a heat dissipation device 322, a communication pipe 323 and a heat absorption device 324, a liquid outlet end of the circulating pump 321 is communicated with the heat dissipation device 322, a liquid inlet end of the heat dissipation device 322 is communicated with the heat absorption device 324, an end of the heat dissipation device 322 far away from the circulating pump 321 is communicated with an end of the heat absorption device 324 far away from the circulating pump 321 through the communication pipe 323, in this way, the oil inside the heat dissipation device 322 and the heat absorption device 324 can be in a circulating flow state through the circulating pump 321, and in the circulating flow process, the heat of the heat dissipation fins is absorbed by the heat absorption device 324, and the heat of the oil is transferred to the air around the heat dissipation device 322 through the heat dissipation device 322, so that the function of heat dissipation of the transformer is realized.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 4 and fig. 5, the heat dissipation device 322 includes a liquid outlet 3221, a heat dissipation pipe 3222, a liquid inlet 3223, and a straight-through pipe 3224, the liquid outlet 3221 is disposed opposite to the liquid inlet 3223, the liquid outlet 3221 is communicated with the circulation pump 321, the liquid inlet 3223 is communicated with the communication pipe 323, the straight-through pipe 3224 is communicated between the liquid outlet 3221 and the liquid inlet 3223, at least two spirally disposed heat dissipation pipes 3222 are disposed outside the straight-through pipe 3224, the plurality of heat dissipation pipes 3222 are disposed in a staggered manner and are not in contact with each other, and two ends of the heat dissipation pipes are respectively communicated with the liquid outlet 3221 and the liquid inlet 3223.

Third embodiment, on the basis of the second embodiment, as shown in fig. 5 and 6, the through pipe 3224 is provided with two sections, and an airflow generator is disposed between the two sections, the airflow generator includes an installation pipe 3225, an inner rotating sleeve 3226, and an outer rotating sleeve 3227, the installation pipe 3225 is hermetically connected between the two through pipes 3224, an inner annular groove is formed on an inner wall of the installation pipe 3225, the inner side of the inner annular groove is rotatably connected with the inner rotating sleeve 3226, an outer annular groove is formed on an outer wall of the installation pipe 3225, the inner side of the outer annular groove is rotatably connected with the outer rotating sleeve 3227, fan blades are disposed on an inner wall of the inner rotating sleeve 3226 and an outer wall of the outer rotating sleeve 3227, a plurality of permanent magnets disposed at equal angles are embedded in an outer wall of the inner rotating sleeve 3226, and the number of permanent magnets disposed on the inner rotating sleeve 3226 is the same as that of permanent magnets disposed on the outer rotating sleeve 3227, so that the fan blades disposed on the inner rotating sleeve 3226 can be pushed by the flow of oil to rotate the inner rotating sleeve 3226, and then under the action of the permanent magnet, the outer rotating sleeve 3227 rotates, and the fan blades on the outer rotating sleeve 3227 rotate along with the rotation of the outer rotating sleeve 3227, so that the function of generating air flow is realized.

Fourth embodiment, on the basis of the third embodiment, as shown in fig. 3, the heat absorbing device 324 includes a branch flow box 3241, a heat absorbing pipe 3242 and a current collecting box 3243, the branch flow box 3241 is communicated with the communicating pipe 323, the current collecting box 3243 is communicated with the liquid inlet end of the circulating pump 321, a plurality of heat absorbing pipes 3242 are communicated between the branch flow box 3241 and the current collecting box 3243, and the heat absorbing pipes 3242 are in contact with the heat dissipating fins, so that the oil inside the branch flow box 3241 is transmitted through the plurality of heat absorbing pipes 3242, the oil absorbs heat of the heat dissipating fins in the process of transmitting inside the heat absorbing pipes 3242, and the function of cooling the transformer body 2 is realized, the heat absorbing pipes (3242) are aluminum pipes or copper pipes, and the heat dissipating pipes (3222) are aluminum pipes or copper pipes, so that the characteristics of fast heat absorption and fast heat dissipation of copper and aluminum are utilized, and the effect of oil cooling is improved.

Fifth embodiment, on the basis of the first embodiment, as shown in fig. 2, the air inlet and outlet grids are disposed at the positions of the protective casing 31 at the two ends of the heat sink 322, so that the hot air inside the protective casing 31 can be smoothly replaced by the air outside the protective casing 31.

In the above structure, when in use, the circulation pump 321 is started, the circulation pump 321 absorbs the oil inside the heat absorber 324, so that the oil enters into the liquid outlet head 3221, then part of the oil inside the liquid outlet head 3221 enters into the through pipe 3224, another part of the oil enters into the heat dissipation pipe 3222, the oil entering into the through pipe 3224 enters into the mounting pipe 3225, and impacts the fan blade on the inner rotating sleeve 3226, so that the inner rotating sleeve 3226 rotates, at this time, the outer rotating sleeve 3227 rotates under the action of the permanent magnet, the fan blade on the outer rotating sleeve 3227 rotates along with the outer rotating sleeve 3227, at this time, the gas inside the heat dissipation pipe 3222 flows, so that the gas outside the protective casing 31 enters into the protective casing 31 through the gas inlet and outlet grids, the hot gas inside the protective casing 31 is discharged out of the protective casing 31, so that the temperature of the oil passing through the heat dissipation pipe 3222 is reduced, and then the oil passes through the communication pipe 32323 and enters into the flow splitting box 41, then flows into the current collecting box 3243 through the heat absorbing pipes 3242, and in the process of passing through the heat absorbing pipes 3242, the heat of the heat dissipating fins is transferred to the oil liquid, so that the temperature of the heat dissipating fins is reduced, and the function of cooling the transformer body 2 is realized.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cold device of circulation oil that transformer was used, includes fixed shell (1), transformer body (2), fixed shell (1) one side opening, and internally mounted has transformer body (2), and the transformer body (2) outside is provided with heat radiation fins, its characterized in that: still include cold mechanism of circulating oil (3), cold mechanism of circulating oil (3) is including protecting sheathing (31), the cold subassembly of circulating oil (32), protecting sheathing (31) fixed mounting is at the opening part of fixed shell (1), and protecting sheathing (31) internally mounted has cold subassembly of circulating oil (32), the cold subassembly of circulating oil (32) is including circulating pump (321), heat abstractor (322), communicating pipe (323), heat sink (324), the play liquid end intercommunication of circulating pump (321) has heat abstractor (322), the feed liquor end intercommunication has heat sink (324) of absorbing heat dissipation fin's heat, the one end that circulating pump (321) were kept away from in heat abstractor (322) and heat sink (324) one end of keeping away from circulating pump (321) are through communicating pipe (323) intercommunication.

2. The circulating oil cooling device for the transformer as claimed in claim 1, wherein: the heat dissipation device (322) comprises a liquid outlet head (3221), a heat dissipation pipe (3222), a liquid inlet head (3223) and a straight-through pipe (3224), the liquid outlet head (3221) and the liquid inlet head (3223) are arranged oppositely, the liquid outlet head (3221) is communicated with the circulating pump (321), the liquid inlet head (3223) is communicated with the communicating pipe (323), the straight-through pipe (3224) is communicated between the liquid outlet head (3221) and the liquid inlet head (3223), at least two spirally-arranged heat dissipation pipes (3222) are arranged on the outer side of the straight-through pipe (3224), the heat dissipation pipes (3222) are arranged in a staggered mode and are not in contact with each other, and the two ends of each heat dissipation pipe are respectively communicated with the liquid outlet head (3221) and the liquid inlet head (3223).

3. The circulating oil cooling device for the transformer as claimed in claim 2, wherein: the straight-through pipe (3224) is provided with two sections, an airflow generator is arranged between the two sections, the airflow generator comprises an installation pipe (3225), an inner rotating sleeve (3226) and an outer rotating sleeve (3227), the installation pipe (3225) is hermetically connected between the two sections of the straight-through pipe (3224), an inner annular groove is arranged on the inner wall of the installation pipe (3225), an inner rotary sleeve (3226) is rotatably connected to the inner side of the inner annular groove, an outer annular groove is arranged on the outer wall of the mounting pipe (3225), and the inner side of the outer annular groove is rotatably connected with an outer rotating sleeve (3227), the inner wall of the inner rotating sleeve (3226) and the outer wall of the outer rotating sleeve (3227) are both provided with fan blades, the outer wall of the inner rotating sleeve (3226) and the inner wall of the outer rotating sleeve (3227) are both embedded with a plurality of permanent magnets which are arranged at equal angles, and the number of the permanent magnets on the inner rotating sleeve (3226) is the same as that of the permanent magnets on the outer rotating sleeve (3227).

4. The circulating oil cooling device for the transformer as claimed in claim 2, wherein: the heat absorption device (324) comprises a flow dividing box (3241), heat absorption pipes (3242) and a flow gathering box (3243), the flow dividing box (3241) is communicated with the communicating pipe (323), the flow gathering box (3243) is communicated with the liquid inlet end of the circulating pump (321), a plurality of heat absorption pipes (3242) are communicated between the flow dividing box (3241) and the flow gathering box (3243), and the heat absorption pipes (3242) are in contact with the heat dissipation fins.

5. The circulating oil cooling device for the transformer as claimed in claim 4, wherein: the heat absorbing pipe (3242) and the heat radiating pipe (3222) are aluminum pipes or copper pipes.

6. The circulating oil cooling device for the transformer as claimed in claim 1, wherein: the protective shell (31) is provided with air inlet and outlet grids at the positions of two ends of the heat dissipation device (322).