CN211628855U - Air cooling device for heat dissipation of low-voltage distribution transformer - Google Patents
Air cooling device for heat dissipation of low-voltage distribution transformer Download PDFInfo
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- CN211628855U CN211628855U CN202020249538.7U CN202020249538U CN211628855U CN 211628855 U CN211628855 U CN 211628855U CN 202020249538 U CN202020249538 U CN 202020249538U CN 211628855 U CN211628855 U CN 211628855U
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- air cooling
- oil tank
- forced air
- cooling jacket
- distribution transformer
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Abstract
The utility model discloses an air cooling device is used in low pressure distribution transformer heat dissipation relates to distribution transformer technical field, for solving the physical heat dissipation that the most adoption fin formula of the oily formula distribution transformer among the prior art, nevertheless when ambient temperature rose, the metal cooling fin can't carry out cold and hot exchange, just can't quick effectual radiating problem of realization oil tank inside. The oil-immersed transformer includes the forced air cooling jacket case, the both sides of forced air cooling jacket case all are provided with the arc ventilation window, and arc ventilation window and forced air cooling jacket case built-up connection, the both ends of forced air cooling jacket case all are provided with hides the rain frame, and hides rain frame and forced air cooling jacket case welded connection, the inboard that hides the rain frame is provided with automatic cooling fan, and automatic cooling fan has two, the top of forced air cooling jacket case is provided with the oil tank closing cap, and the oil tank closing cap passes through the draw-in groove with the forced air cooling jacket case and is connected, the top of oil tank closing cap is provided with high-tension bushing, and high-tension bushing has a plurality ofly.
Description
Technical Field
The utility model relates to a distribution transformer technical field specifically is low voltage distribution transformer air cooling device for the heat dissipation.
Background
Distribution transformers are called distribution transformers for short, and are static electrical appliances which are used in an assigned power system and transmit alternating current energy by converting alternating current voltage and current according to an electromagnetic induction law, power transformers with the voltage grade of less than 35 kilovolts (mostly 10 kilovolts or less) are called distribution transformers for short in some areas, and places where the distribution transformers are installed are not only power substations, but also distribution transformers are installed on columns or in an open-air ground mode. The distribution power transformer is a static electrical device, and is a device for changing an alternating voltage (current) with a certain value into another voltage (current) with the same frequency or different values. When the primary winding is energized with an alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux is magnetically conducted through the iron core, so that an alternating electromotive force is induced in the secondary winding. The level of the secondary induced electromotive force is related to the number of turns of the primary winding, i.e. the voltage is proportional to the number of turns.
However, most of the existing oil-immersed distribution transformers adopt fin-type physical heat dissipation, but when the external temperature rises, the metal heat dissipation fins cannot exchange heat and cold, and thus the heat dissipation inside the oil tank cannot be realized quickly and effectively; therefore, the existing requirements are not met, and an air cooling device for radiating the heat of the low-voltage distribution transformer is provided for the requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air cooling device is used in low pressure distribution transformer heat dissipation to solve the physical heat dissipation that the most adoption fin formula of the oil-immersed distribution transformer that proposes in the above-mentioned background art, nevertheless when ambient temperature rose, the metal fin can't carry out cold and hot exchange, just can't quick effectual radiating problem of realization oil tank inside.
In order to achieve the above object, the utility model provides a following technical scheme: air cooling device is used in low pressure distribution transformer heat dissipation, including oil-immersed transformer, oil-immersed transformer includes the forced air cooling jacket case, the both sides of forced air cooling jacket case all are provided with the arc ventilation window, and arc ventilation window and forced air cooling jacket case built-up connection, the both ends of forced air cooling jacket case all are provided with hides the rain frame, and hides rain frame and forced air cooling jacket case welded connection, the inboard that hides the rain frame is provided with automatic cooling fan, and automatic cooling fan has two, the top of forced air cooling jacket case is provided with the oil tank closing cap, and the oil tank closing cap passes through the draw-in groove with the forced air cooling jacket case and is connected, the top of oil tank closing cap is provided with high-tension bushing, and high-tension bushing has a plurality ofly, one side of high-tension.
Preferably, the oil tank is arranged below the oil tank sealing cover, the oil tank is fixedly connected with the oil tank sealing cover, metal radiating fins are arranged on two sides of the oil tank and are multiple, the grounding cross rod is arranged at the bottom of the oil tank, and the grounding cross rod is connected with the oil tank in a combined mode.
Preferably, the metal radiating fins are fixedly connected with the oil tank, and rectangular ventilation grooves are formed in the outer surfaces of the metal radiating fins.
Preferably, one end of the oil tank is provided with a bidirectional temperature detection element, and the bidirectional temperature detection element is connected with the oil tank in a combined manner.
Preferably, the inner side of the air-cooling jacket box is provided with a fan control box, and the fan control box is connected with the air-cooling jacket box through a clamping groove.
Preferably, the bottom of the air-cooled jacket box is provided with a supporting bottom beam, and the supporting bottom beam is connected with the air-cooled jacket box in a welding manner.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model takes the metal radiating fins outside the oil tank as the middle conducting structure of air cooling, firstly the radiating fins absorb the heat inside the tank body, then the bidirectional temperature detecting element on the oil tank respectively detects the working temperature inside the oil tank and the ambient temperature outside the oil tank, and then the detected temperature data is transmitted to the fan control box, at the moment, the fan control box can adjust the running power of the fan according to the temperature, when the fan runs, the outside air is sucked into the inner part of the sleeve box from the arc-shaped ventilation window, the heat in the radiating fins is taken away through the rapid flow of the air, simultaneously still be provided with a plurality of rectangle ventilation grooves at metal radiating fin's surface, can promote horizontal circulation of air between the fin through rectangle ventilation groove, thereby be favorable to thermal giving off and the conduction to realize quick effectual radiating operation like this.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a schematic view of the overall disassembled structure of the present invention;
fig. 3 is a schematic view of the bottom structure of the air-cooling jacket of the present invention.
In the figure: 1. an oil tank; 2. a metal heat dissipation fin; 3. a grounding rail; 4. a bi-directional temperature sensing element; 5. a fuel tank sealing cover; 6. a high voltage bushing; 7. a low-pressure bushing; 8. an air-cooled jacket box; 9. an automatic heat dissipation fan; 10. a fan control box; 11. a rain shielding frame; 12. an arc-shaped ventilation window; 13. a rectangular ventilation slot; 14. an oil-immersed transformer; 15. and supporting the bottom beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: an air cooling device for heat dissipation of a low-voltage distribution transformer comprises an oil-immersed transformer 14, wherein the oil-immersed transformer 14 comprises an air cooling jacket 8, two sides of the air cooling jacket 8 are respectively provided with an arc-shaped ventilation window 12, when fans at two ends of the jacket are started, outside air can be sucked into the jacket from the arc-shaped ventilation windows 12 and is sent out by the fans after heat exchange is completed, the arc-shaped ventilation windows 12 are connected with the air cooling jacket 8 in a combined mode, two ends of the air cooling jacket 8 are respectively provided with a rain shielding frame 11, the rain shielding frames 11 are connected with the air cooling jacket 8 in a welded mode, the stability is enhanced, the inner side of the rain shielding frame 11 is provided with an automatic heat dissipation fan 9, the air flow rate in the tank is controlled by the operation of the fans, two automatic heat dissipation fans 9 are arranged above the air cooling jacket 8, an oil tank sealing cover 5 is connected with the air cooling jacket 8 through a clamping groove, a high-pressure sleeve 6 is arranged above the oil tank sealing, and there are a plurality of high voltage bushings 6, and a low voltage bushing 7 is provided at one side of the high voltage bushing 6.
Further, the below of oil tank closing cap 5 is provided with oil tank 1, and oil tank 1 and 5 fixed connection of oil tank closing cap, the both sides of oil tank 1 all are provided with metal radiating fin 2, and metal radiating fin 2 has a plurality ofly, regard metal radiating fin 2 as air-cooled middle conduction structure, absorb the inside heat of box earlier by radiating fin, the inside heat of radiating fin is dispelled through the fast flow of air afterwards, thereby realize quick effectual radiating operation, the bottom of oil tank 1 is provided with ground connection horizontal pole 3, and ground connection horizontal pole 3 and 1 built-up connection of oil tank.
Further, metal radiating fin 2 and oil tank 1 fixed connection, and metal radiating fin 2's surface is provided with rectangle ventilation groove 13, can promote horizontal circulation of air between the fin through a plurality of rectangle ventilation grooves 13 on fin surface, is favorable to thermal giving off and conducting like this.
Further, the one end of oil tank 1 is provided with two-way temperature detect element 4, and two-way temperature detect element 4 and 1 built-up connection of oil tank, and two-way temperature detect element 4 can detect the inside operating temperature of oil tank respectively, can also detect the external ambient temperature of oil tank simultaneously.
Further, the inboard of air-cooled jacket 8 is provided with fan control box 10, and fan control box 10 passes through the draw-in groove with air-cooled jacket 8 and is connected, interconnect between fan control box 10 and the two-way temperature detect element 4 on the oil tank 1, can adjust the operating power of fan according to the temperature to realize reasonable utilization of resources.
Further, the bottom of forced air cooling jacket 8 is provided with support floorbar 15, and supports floorbar 15 and forced air cooling jacket 8 welded connection, supports floorbar 15 and can support the inside oil tank of the jacket of packing into, does not have certain clearance to exist between two sets of floorbars simultaneously, can prevent like this that the rainwater deposit is in the bottom that forced air cooling jacket 8 is right.
The working principle is as follows: when the air cooling jacket box is used, the oil tank 1 is arranged inside the air cooling jacket box 8, the metal radiating fins 2 are arranged on two sides of the outer portion of the oil tank 1, the metal radiating fins 2 are used as an air cooling middle conduction structure, the radiating fins absorb heat inside the box body firstly, then the working temperature inside the oil tank and the ambient temperature outside the oil tank are detected respectively through the two-way temperature detection element 4 on the oil tank 1, detected temperature data are transmitted to the fan control box 10 on the inner side of the air cooling jacket box 8, the automatic radiating fan 9 is started by the fan control box 10, the running power of the fan is adjusted according to the temperature, when the fan runs, outside air is sucked into the jacket box from the arc-shaped ventilating window 12, the heat inside the radiating fins is taken away through the rapid flowing of the air, and the plurality of rectangular ventilating grooves 13 are arranged on the outer surface of the metal radiating fins 2, the rectangular ventilation grooves 13 can promote the air circulation between the fins in the transverse direction, which is beneficial to the heat dissipation and conduction so as to realize the quick and effective heat dissipation operation.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Low pressure distribution transformer is air cooling device for heat dissipation, including oil-immersed transformer (14), its characterized in that: oil-immersed transformer (14) are including forced air cooling jacket (8), the both sides of forced air cooling jacket (8) all are provided with arc ventilation window (12), and arc ventilation window (12) and forced air cooling jacket (8) built-up connection, the both ends of forced air cooling jacket (8) all are provided with hides rain frame (11), and hides rain frame (11) and forced air cooling jacket (8) welded connection, the inboard that hides rain frame (11) is provided with automatic cooling fan (9), and automatic cooling fan (9) have two, the top of forced air cooling jacket (8) is provided with oil tank closing cap (5), and oil tank closing cap (5) are connected through the draw-in groove with forced air cooling jacket (8), the top of oil tank closing cap (5) is provided with high-tension bushing (6), and high-tension bushing (6) have a plurality ofly, one side of high-tension bushing (6) is provided with low-tension bushing (7).
2. The air cooling device for dissipating heat of a low-voltage distribution transformer of claim 1, wherein: the oil tank sealing cover is characterized in that an oil tank (1) is arranged below the oil tank sealing cover (5), the oil tank (1) is fixedly connected with the oil tank sealing cover (5), metal radiating fins (2) are arranged on two sides of the oil tank (1), the metal radiating fins (2) are multiple, a grounding transverse rod (3) is arranged at the bottom of the oil tank (1), and the grounding transverse rod (3) is connected with the oil tank (1) in a combined mode.
3. The air cooling device for dissipating heat of a low-voltage distribution transformer of claim 2, wherein: the metal radiating fins (2) are fixedly connected with the oil tank (1), and rectangular ventilation grooves (13) are formed in the outer surfaces of the metal radiating fins (2).
4. The air cooling device for dissipating heat of a low-voltage distribution transformer of claim 2, wherein: one end of the oil tank (1) is provided with a bidirectional temperature detection element (4), and the bidirectional temperature detection element (4) is connected with the oil tank (1) in a combined manner.
5. The air cooling device for dissipating heat of a low-voltage distribution transformer of claim 1, wherein: the inner side of the air-cooled jacket box (8) is provided with a fan control box (10), and the fan control box (10) is connected with the air-cooled jacket box (8) through a clamping groove.
6. The air cooling device for dissipating heat of a low-voltage distribution transformer of claim 1, wherein: the bottom of the air-cooled jacket box (8) is provided with a supporting bottom beam (15), and the supporting bottom beam (15) is connected with the air-cooled jacket box (8) in a welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249538.7U CN211628855U (en) | 2020-03-04 | 2020-03-04 | Air cooling device for heat dissipation of low-voltage distribution transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249538.7U CN211628855U (en) | 2020-03-04 | 2020-03-04 | Air cooling device for heat dissipation of low-voltage distribution transformer |
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| CN211628855U true CN211628855U (en) | 2020-10-02 |
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| CN202020249538.7U Active CN211628855U (en) | 2020-03-04 | 2020-03-04 | Air cooling device for heat dissipation of low-voltage distribution transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802673A (en) * | 2020-12-31 | 2021-05-14 | 南京敦韬建筑工程有限公司 | Temperature monitoring and early warning system for transformer |
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2020
- 2020-03-04 CN CN202020249538.7U patent/CN211628855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112802673A (en) * | 2020-12-31 | 2021-05-14 | 南京敦韬建筑工程有限公司 | Temperature monitoring and early warning system for transformer |
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