CN201708002U - Transformer cooling device - Google Patents

Abstract

The utility model discloses a transformer cooling device, which comprises a transformer cabinet. The transformer cooling device is also provided with a cooling fan. The transformer cabinet is provided with an upper cabinet door, a lower cabinet door, a left cabinet door, a right cabinet door, a front cabinet door and The rear cabinet door, the front cabinet door and the rear cabinet door are provided with cooling windows, a cooling fan is installed on the upper cabinet door, a temperature control switch is installed on the transformer, and the temperature control switch is connected with the cooling fan. The utility model can timely discharge the heat generated by the transformer during operation, reduce tripping frequency, reduce power loss, and protect the safety of the power supply network without increasing the volume of the transformer. The production cost and use cost are low, and the maintenance is convenient.

Description

A transformer cooling device

technical field

The utility model relates to a cooling device for equipment, in particular to a cooling device for a transformer commonly used in electric power.

Background technique

With the development of the economy, electrification runs through almost every corner of all fields of the national economy, and the application of power transformers is becoming more and more extensive. At the same time, the safety of power transformers is becoming more and more important. The transformer will generate a lot of heat during operation, which will cause the temperature of the transformer to rise and cause frequent trips. If it is operated at a high temperature for a long time, it will easily lead to a decrease in insulation performance, increase power loss, and in severe cases, cause the transformer to burn out and endanger the safety of the power supply network.

Common transformers (such as SC9, SC10) use cooling fans at the bottom of the transformer cabinet to dissipate heat through the cooling windows at the bottom. Due to the low density of hot air generated during operation, a large amount of hot air gathers on the top of the transformer cabinet and cannot be discharged. , the heat dissipation effect is not very obvious, and in the long-term operation of this heat dissipation method, due to the accumulation of a large amount of dust in the equipment, it is easy to cause the fan to be blocked, which directly causes the heat dissipation device to fail to operate.

Patent No. ZL 200420077879.1 discloses a cooling system for power transformers, which includes: one or more distributor heads, one or more collector heads, and a cooling system between the distributor heads and collector heads. The multiple cooling pipes also include a circulating cooling water tank arranged outside the multiple cooling pipes to cool the dielectric insulating fluid in the cooling pipes; the distributor head communicates with the dielectric insulating fluid of the power transformer, and the power transformer inside The dielectric insulating fluid is distributed into multiple cooling pipes, and the head of the collector is also connected with the dielectric insulating fluid of the power transformer to collect the dielectric insulating fluid flowing out of the multiple cooling pipes into the power transformer. This patent can quickly cool the transformer, but the volume is large, the production cost is high, and the maintenance is inconvenient.

Utility model content

The utility model solves the problem that a large amount of heat generated by the transformer cannot be discharged in time during the operation process, which causes the temperature of the transformer to rise and trips frequently, and at the same time increases the power loss, which will cause the transformer to burn out in severe cases and endanger the safety of the power supply network. Large, high cost, inconvenient maintenance and other problems to provide a transformer cooling device.

To solve the above problems, the technical solution adopted by the utility model is a transformer cooling device, including a transformer cabinet, the transformer cooling device is also provided with a cooling fan, and the transformer cabinet is provided with an upper cabinet door, a lower cabinet door, a left cabinet door, a right The cabinet door, the front cabinet door and the rear cabinet door are provided with cooling windows, the upper cabinet door is equipped with a cooling fan, the transformer is equipped with a temperature control switch, and the temperature control switch is connected to the cooling fan. When the temperature of the transformer rises to a certain value, the temperature control switch on the transformer is turned on, and the end of the temperature control switch is connected to a heat dissipation fan. The heat dissipation window and the heat dissipation fan installed on the upper cabinet door form multiple heat dissipation air ducts. The hot air generated by the transformer is exhausted.

Preferably, 1 to 5 cooling fans are installed on the upper cabinet door of the transformer cabinet. Discharge the hot air generated by the transformer in time.

Preferably, a cavity is formed between the heat dissipation window, the heat dissipation fan and the transformer, and a heat dissipation air duct is formed between the interior of the transformer cabinet and the heat dissipation fan. Make the air inside the transformer and the outside air form convection, and the hot air generated by the transformer will be discharged while the outside cold air will be sucked in to cool the transformer in time.

Preferably, the opening temperature of the temperature control switch is set at 30°C to 100°C.

The beneficial effects of the utility model are: timely discharging the heat generated by the transformer during operation, reducing tripping frequency, reducing power loss, protecting the safety of the power supply network, and simultaneously not increasing the volume of the transformer, low production cost and use cost, and convenient maintenance.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a circuit connection diagram of the utility model;

Fig. 3 is A-A sectional view of Fig. 1;

Fig. 4 is a B-B sectional view of Fig. 3 .

Explanation of reference signs: upper cabinet door 1, left cabinet door 2, right cabinet door 3, heat dissipation window 4, lower cabinet door 5, front cabinet door 6, rear cabinet door 7, cooling fan 8, transformer 9, temperature control switch 10 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

A transformer cooling device, comprising a transformer cabinet, the transformer cooling device is also provided with a heat dissipation fan 8, and the transformer cabinet is provided with an upper cabinet door 1, a lower cabinet door 5, a left cabinet door 2, a right cabinet door 3, and a front cabinet door 6 and the rear cabinet door 7, the front cabinet door 6 and the rear cabinet door 7 are provided with cooling windows 4, the upper cabinet door 1 is equipped with a cooling fan 4, the transformer is equipped with a temperature control switch 10, and the temperature control switch 10 is connected to the cooling fan 4 , two heat dissipation fans 8 are installed on the upper cabinet door of the transformer 9, a cavity is formed between the heat dissipation window 4, the heat dissipation fan 8 and the transformer 9, and a heat dissipation air duct is formed between the inside of the transformer cabinet and the heat dissipation fan 9, and the temperature control switch 10 is turned on The temperature was set at 45°C.

When the temperature of the transformer 9 rises to a certain value, the temperature control switch 10 on the transformer 9 is turned on, and the end of the temperature control switch 10 is connected to the heat dissipation fan 8, and the heat dissipation window 4 and the heat dissipation fan 8 installed on the upper cabinet door 1 form a plurality of heat dissipation The air duct makes the air in the transformer 9 and the outside air form convection, and the hot air produced by the transformer 9 is discharged while the external cold air is sucked in, and the cooling fan 8 works to discharge the hot air produced by the transformer 9.

Claims (3)

1. A transformer cooling device, comprising a transformer cabinet, the transformer cooling device is also provided with a cooling fan, and the transformer cabinet is provided with an upper cabinet door, a lower cabinet door, a left cabinet door, a right cabinet door, a front cabinet door and a rear cabinet door , the front cabinet door and the rear cabinet door are provided with cooling windows, which are characterized in that: a cooling fan is installed on the upper cabinet door, a temperature control switch is installed on the transformer, and the temperature control switch is connected to the cooling fan. 2. A transformer cooling device according to claim 1, characterized in that: 1 to 5 cooling fans are installed on the upper cabinet door of the transformer cabinet. 3. A transformer cooling device according to claim 1, characterized in that: a cavity is formed between the heat dissipation window, the heat dissipation fan and the transformer, and a heat dissipation air duct is formed between the inside of the transformer cabinet and the heat dissipation fan. the

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