Cooling device special for mixed flow exchange type efficient extra-high voltage transformer

Abstract

The utility model belongs to the technical field of transformer cooling, and particularly relates to a mixed flow exchange type efficient cooling device special for an extra-high voltage transformer, which comprises a transformer main body, a heat dissipation mechanism is arranged on one side of the transformer main body, and a drainage fan is arranged below the heat dissipation mechanism; wherein the heat dissipation mechanism comprises heat dissipation fins, the heat dissipation fins are wound to form a roll-shaped structure, the outer side ends of the heat dissipation fins are connected to the transformer body, the heat dissipation fins in the heat dissipation mechanism are of the roll-shaped structure, the heat dissipation area between the heat dissipation fins and air is increased, and the occupied space of equipment can be reduced; in addition, the drainage fan is additionally arranged below the cooling fins, the air flowing speed on the outer sides of the cooling fins can be increased, and then the cooling efficiency of the equipment is improved; and the rainproof cylinder is arranged at the top end of the cooling fin, so that rainwater can be prevented from flowing into the drainage fan along the air duct, the risk of equipment operation is reduced, and the equipment is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transformer cooling technical field, specifically relates to a mixed flow exchange formula high -efficient special cooling device of extra -high voltage transformer. BACKGROUND

[0002] The transformer is one of main equipment of transformer substation, is used to transform into user required each level voltage with high voltage. But in the daily operation of transformer, the loss of transformer winding and iron core will produce a large amount of heat, need through cooling measures, promptly the heat generated is removed, to ensure the normal operation of transformer work;

[0003] Such as the transformer cooling device provided in Chinese patent announcement No. CN218676711U, the device includes transformer body, control circuit, also includes mounting bracket, the mounting bracket one side installs transformer body, the other side installs the circulating cooling mechanism that carries out cooling to transformer body, the mounting bracket installs the spray mechanism above the position corresponding to the circulating cooling mechanism. The device is set through multiple groups of heat dissipation, plays the effect of redundancy, at least guarantees the operation of one group of heat dissipation equipment, to ensure that the operating temperature of transformer is in the safe range.

[0004] For example, the existing technology recorded in the above patent, the heat dissipation fin used is mostly sheet structure, in order to increase the heat dissipation effect of equipment, it is necessary to increase multiple groups of heat dissipation fins, this kind of way can increase the heat dissipation efficiency, but also increases the volume of equipment, increases the land occupation of equipment.

[0005] Practical content

[0006] The utility model aims at providing a mixed flow exchange formula high -efficient special cooling device of extra -high voltage transformer, adopts the heat dissipation fin of roll structure, not only can increase the heat dissipation efficiency, and also can reduce the land occupation.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] A mixed flow exchange formula high -efficient special cooling device of extra -high voltage transformer, including transformer body, the one side of transformer body is provided with heat dissipation mechanism, the heat dissipation mechanism below is provided with the flow fan, wherein, the heat dissipation mechanism includes the heat dissipation fin, the heat dissipation fin is wound and forms roll structure, and the outside end of heat dissipation fin is connected on the transformer body.

[0009] In a preferred scheme, the inside of the heat dissipation fin is provided with a flowing cavity, the outside end of the heat dissipation fin is a liquid inlet, the flowing cavity is communicated with the inside of the transformer body through the liquid inlet, and the inside end of the heat dissipation fin is provided with a liquid outlet at the top.

[0010] In a preferred form, when the fins are formed into a roll structure by winding, the gap between the outer walls of the fins is a wind channel, and the upper and lower ends of the wind channel are open structures.

[0011] In a preferred form, the flow guide fan comprises a flow guide cylinder with upper and lower openings, the outlet of the flow guide cylinder is arranged corresponding to the wind channel, and a flow guide fan blade is arranged inside the flow guide cylinder and rotates.

[0012] In a preferred form, a connecting pipe is arranged on the liquid outlet, the other end of the connecting pipe is connected to a backflow pump, and the liquid outlet end of the backflow pump is connected to the transformer body.

[0013] In a preferred form, a rainproof cylinder is arranged above the fins, and the upper and lower ends of the rainproof cylinder are conical structures.

[0014] The utility model achieves the following technical effects:

[0015] The utility model adopts the roll structure of the fins in the heat dissipation mechanism, which not only increases the heat dissipation area with the air, but also reduces the land occupation of the equipment and the operation cost of the equipment, and the flow guide fan arranged below the fins can increase the air flow speed outside the fins, thereby increasing the heat dissipation efficiency of the equipment.

[0016] The rainproof cylinder arranged on the top end of the fins can prevent rainwater from flowing along the wind channel into the flow guide fan, thereby reducing the risk of equipment operation and preventing the equipment from being damaged. DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the overhead sectional enlarged structure schematic diagram of the fins in the heat dissipation mechanism of the utility model;

[0019] Figure 3 It is the half-section enlarged structure schematic diagram of the fins in the heat dissipation mechanism of the utility model;

[0020] Figure 4 It is the sectional enlarged structure schematic diagram of the rainproof cylinder of the utility model.

[0021] In the drawings, the components represented by each number are listed as follows:

[0022] 1, transformer body; 2, heat dissipation mechanism; 3, flow guide fan; 4, rainproof cylinder; 5, backflow pump; 21, fin; 22, flowing cavity; 23, wind channel; 24, liquid inlet; 25, liquid outlet; 31, flow guide cylinder; 32, flow guide fan blade; 33, driving motor; 51, connecting pipe. DETAILED DESCRIPTION

[0023] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0025] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0026] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0027] Please refer to the accompanying Figures 1 to 3 As shown in the accompanying drawings, the present application provides a cooling device special for mixed-flow exchange type high-efficiency extra-high voltage transformer, which comprises a transformer main body 1, a heat dissipation mechanism 2 arranged on one side of the transformer main body 1, and a flow guide fan 3 arranged below the heat dissipation mechanism 2; wherein the heat dissipation mechanism 2 comprises heat dissipation fins 21, the heat dissipation fins 21 are wound to form a roll-shaped structure, and the outer side ends of the heat dissipation fins 21 are connected to the transformer main body 1.

[0028] The transformer equipment generates heat during operation, in order for the transformer main body 1 to operate normally, it needs to be cooled, by arranging the heat dissipation mechanism 2 on the outer side of the transformer main body 1, the heat dissipation mechanism 2 is used to cool the transformer main body 1, by connecting the heat dissipation fins 21 in the heat dissipation mechanism 2 to the transformer main body 1, the contact area between the transformer main body 1 and the air can be increased, thereby increasing the cooling efficiency, and the heat dissipation fins 21 adopt a roll-shaped structure, which can increase the heat dissipation area without increasing the occupied space, so that the cooling effect of the transformer equipment is better.

[0029] In this embodiment, by adopting the coil-shaped structure of the heat dissipation fins 21 in the heat dissipation mechanism 2, not only the heat dissipation area with the air is increased, but also the land occupation of the equipment is reduced, the operation cost of the equipment is reduced, and the air flow speed outside the heat dissipation fins 21 is increased by adding the air guide fan 3 below the heat dissipation fins 21, thereby increasing the heat dissipation efficiency of the equipment.

[0030] As shown in Figure 2 and Figure 3 , the inner side of the heat dissipation fins 21 is provided with a flowing cavity 22, the outer side end of the heat dissipation fins 21 is provided with a liquid inlet 24, the flowing cavity 22 is communicated with the inside of the transformer body 1 through the liquid inlet 24, and the inner side end of the heat dissipation fins 21 is provided with a liquid outlet 25;

[0031] In this embodiment, in the existing transformer equipment, most of the inside is filled with transformer oil, which is used as an insulation means in the transformer, and relies on the oil as a cooling medium. The transformer oil in the existing transformer equipment cannot flow into the heat dissipation fins for heat dissipation, but can only transfer heat to the shell of the transformer, and then conduct heat to the heat dissipation fins for heat dissipation. In the present equipment, the flowing cavity 22 is arranged in the heat dissipation fins 21, the transformer oil flows into the flowing cavity 22 through the liquid inlet 24, and then flows back into the transformer body 1 through the liquid outlet 25. When the transformer oil flows through the flowing cavity 22, heat is conducted to the heat dissipation fins 21, and the heat is dissipated through the heat dissipation fins 21, thereby increasing the heat dissipation efficiency of the transformer.

[0032] When the heat dissipation fins 21 are formed in a coil-shaped structure by winding, the gap between the outer side walls of the heat dissipation fins 21 forms an air duct 23, the upper and lower ends of the air duct 23 are open structures, the air guide cylinder 31 with an upper and lower opening structure is included in the air guide fan 3, the air outlet of the air guide cylinder 31 is arranged corresponding to the air duct 23, the air guide fan blade 32 is rotatably arranged in the air guide cylinder 31, and the air guide fan blade 32 is connected with the driving motor 33 below;

[0033] In order to increase the heat dissipation efficiency when the transformer oil flows through the flowing cavity 22, air can be blown into the air duct 23 by the air guide fan 3 to increase the air flow rate in the air duct 23, thereby increasing the heat dissipation efficiency. In the specific operation, the air at the lower end of the air guide cylinder 31 is blown to the air duct 23 by driving the air guide fan blade 32 to rotate in the air guide cylinder 31, and the hot air is discharged from the upper end opening of the air duct 23, thereby increasing the air flow rate and facilitating faster heat dissipation.

[0034] The liquid outlet 25 is provided with a connecting pipe 51, the other end of the connecting pipe 51 is connected to the backflow pump 5, and the liquid outlet end of the backflow pump 5 is connected to the transformer body 1;

[0035] The connection pipe 51 is connected with the backflow pump 5 at the drain port 25 of the heat dissipation fin 21, so that the transformer oil flows in the heat dissipation fin 21 in a directional manner, thereby improving the heat dissipation efficiency.

[0036] Please refer to Figure 4 As shown in the drawings, the rainproof cylinder 4 is arranged above the heat dissipation fin 21, and the upper and lower ends of the rainproof cylinder 4 are both in a tapered structure.

[0037] In this embodiment, the rainproof cylinder 4 is arranged at the top end of the heat dissipation fin 21, so that the rainwater cannot flow into the air guide fan 3 along the air duct 23, thereby reducing the risk of equipment operation and preventing the equipment from being damaged.

[0038] The upper and lower ends of the rainproof cylinder 4 are both in a tapered structure, the tapered slope at the upper end can guide the rainwater to flow outward when it rains, thereby achieving a good rain guiding effect, and the tapered slope at the lower end can guide the air blown out of the air duct 23 to flow outward, thereby reducing the wind blocking effect caused by the rainproof cylinder 4 and achieving a good air guiding effect.

[0039] The working principle of the utility model is as follows: the transformer equipment generates heat when it is running, in order to enable the transformer main body 1 to run normally, the transformer main body 1 needs to be cooled, the heat dissipation mechanism 2 is arranged outside the transformer main body 1, the heat dissipation mechanism 2 is used for cooling the transformer main body 1, the heat dissipation fin 21 in the heat dissipation mechanism 2 is connected to the transformer main body 1, so that the contact area between the transformer main body 1 and the air is increased, thereby increasing the heat dissipation efficiency, and the heat dissipation fin 21 adopts a roll-shaped structure, which can increase the heat dissipation area without increasing the occupied space, so that the heat dissipation effect of the transformer equipment is better.

[0040] The above only describes the preferred embodiments of the utility model, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principle of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A cooling device for a mixed-flow, exchange-type, high-efficiency, extra-high voltage transformer, characterized in that: Including transformer body (1), one side of transformer body (1) is provided with heat dissipation mechanism (2), the lower portion of heat dissipation mechanism (2) is provided with flow fan (3); Wherein, the heat dissipation mechanism (2) includes a fin (21), the fin (21) is wound to form a roll structure, the outer side end of the fin (21) is connected to the transformer body (1).

2. The cooling device for a cross-flow exchange high-efficiency extra-high voltage transformer according to claim 1, characterized in that: The inner side of the fin (21) is provided with a flowing cavity (22), the outer side end of the fin (21) is a liquid inlet (24), the flowing cavity (22) is communicated with the inside of the transformer body (1) through the liquid inlet (24), and the inner side end of the fin (21) is provided with a liquid outlet (25).

3. The cooling device for a mixed-flow exchange type high-efficiency extra-high voltage transformer according to claim 1, characterized in that: When the fin (21) is formed into a roll structure by winding, the gap between the outer side walls of the fin (21) forms an air duct (23), and the upper and lower ends of the air duct (23) are open structures.

4. The cooling device for a mixed-flow exchange type high-efficiency extra-high voltage transformer according to claim 3, characterized in that: The flow cylinder (31) includes an upper and lower opening structure, the air outlet of the flow cylinder (31) is provided with a flow duct (23), the inside of the flow cylinder (31) is provided with a flow fan (32), and the lower portion of the flow fan (32) is connected with a driving motor (33).

5. The cooling device for a mixed-flow exchange type high-efficiency extra-high voltage transformer according to claim 2, characterized in that: The liquid outlet (25) is provided with a connecting pipe (51), the other end of the connecting pipe (51) is connected to the backflow pump (5), and the liquid outlet end of the backflow pump (5) is connected to the transformer body (1).

6. The cooling device for a cross-flow exchange high-efficiency extra-high voltage transformer according to claim 1, characterized in that: The upper portion of the fin (21) is provided with a rainproof cylinder (4), and the upper and lower ends of the rainproof cylinder (4) are conical structures.

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