Heat dissipation device of low-pressure chamber of box-type transformer
A box-type transformer and cooling device technology, which is applied in the cooling/ventilation of substations/switchgears to achieve the effect of improving operational reliability
Active Publication Date: 2014-07-23
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Problems solved by technology
In summary, the problem of heat dissipation in the low-voltage chamber of the box transformer has been unresolved
Method used
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[0015] The following combination Figure 1 ~ Figure 3 , a preferred embodiment of the present invention is described in detail.
[0016] Such as figure 2 As shown, the cooling device of the box-type transformer low-voltage chamber provided by the present invention includes a casing 6, and is arranged inside the casing 6: an air-air heat exchanger 1, which has an air inlet 4 and a Air return port 5; cooling fan 3, which is arranged at the bottom of the air-air heat exchanger 1, and is connected with the cooling fins of the air-air heat exchanger 1; circulation fan 2, which is arranged at the bottom of the air-air heat exchanger 1 In the air inlet 4 of the air-air heat exchanger 1 or in the return air outlet 5; as image 3 As shown, in this embodiment, the circulating fan 2 is installed in the air inlet 4 of the air-air heat exchanger 1; the automatic control module 7 is arranged on the upper part of the air-air heat exchanger 1, and uses To automatically control the tempera...
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The invention discloses a heat dissipation device of a low-pressure chamber of a box-type transformer. The device comprises an outer shell, an air-air heat exchanger, a heat dissipation fan, a circulation fan and an automatic control module, the air-air heat exchanger, the heat dissipation fan, the circulation fan and the automatic control module are arranged in the outer shell, the air-air heat exchanger is provided with an air inlet and an air returning opening, the heat dissipation fan is arranged on the lower portion of the air-air heat exchanger and is connected with cooling fins of the air-air heat exchanger, the circulation fan is arranged in the air inlet or the air returning opening of the air-air heat exchanger, the automatic control module is arranged on the upper portion of the air-air heat exchanger, and when the measured internal temperature of the air-air heat exchanger is higher than the set threshold value, the heat dissipation fan is controlled to be started. The device can ensure that full heat dissipation is performed on the low-pressure chamber, meanwhile, pollutants in external air cannot be introduced in the interior of the low-pressure chamber of the box-type transformer, and the noise of the box-type transformer cannot be leaked outwards, and running reliability of the box-type transformer in the high-temperature environment in summer can be effectively improved.
Description
technical field [0001] The invention relates to an electric power auxiliary equipment, in particular to a cooling device for a low-voltage room of a box-type transformer. Background technique [0002] Box-type transformers (referred to as "box transformers") and other types of power transformation and distribution combined electrical appliances are increasingly widely used, especially European-style box transformers. The internal components are arranged reasonably, and the maintenance and operation are convenient. The fan cools down and dissipates heat. However, the low-voltage switch room of European-style box transformers often has poor heat dissipation, especially in summer. Under the action of heat from the transformer and sunlight, the temperature of the low-voltage switch room often reaches above 80°C, which is far higher than that of molded case circuit breakers and other equipment. The allowable ambient temperature limit not only leads to accelerated aging of intern...
Claims
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IPC IPC(8): H02B1/56
Inventor 杨敏周徐达陶燕朱丹妮唐伯龙张鸿钱全根
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO