Water film type heat dissipation dustproof outdoor switch cabinet

Abstract

The invention discloses a water film type heat dissipation dustproof outdoor switch cabinet, which belongs to the technical field of switch cabinets. Introduced air is subjected to dust removal and cooling through a water passing fiber layer in a water passing dust collection body, and water absorption cotton in a water absorption pipe is used for performing moisture adsorption on the air subjected to water treatment, so that water vapor is effectively prevented from being introduced into an outer cabinet body; the water absorption cotton is arranged in the refrigeration column, after absorbing moisture, the water absorption cotton is guided into the refrigeration column through the water guide mechanism to react with the potassium nitrate powder, on one hand, water freezes and absorbs heat to achieve the refrigeration effect after the water absorption cotton makes contact with the refrigeration column, and on the other hand, the use effect of the water absorption cotton is effectivelyimproved through the drainage effect; hot air led out from the bottom end of the refrigeration column can also play a role in heating potassium nitrate powder in the refrigeration column, the interior of the refrigeration column is made to be in the process of continuous freezing, dissolving and icing, the continuity of refrigeration is achieved, in addition, a thermotropic induction deformationbody is arranged at the ventilation opening, and opening and closing of ventilation holes are effectively controlled.

Description

technical field [0001] The invention relates to the technical field of switch cabinets, and more specifically relates to a water-film heat-dissipating and dust-proof outdoor switch cabinet. Background technique [0002] The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instrumentation, automatic control, motor magnetic switch, various AC contactors, etc. [0003] Both the external environment and the temperature in the internal environment of the switchgear will affect the actual temperature inside the switchgear. When the internal temperature of the switchgear is too high, the temperature of the contacts or joints will rise, and the degree of overheating will continue to increase. It will affect the insulation performance and equipment life. In addition, due to the sealed structure of the ...

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Problems solved by technology

[0003] Both the external environment and the temperature in the internal environment of the switchgear will affect the actual temperature inside the switchgear. When the internal temperature of the switchgear is too high, the temperature of the contacts or joints will rise, and the degree of overheating will continue to increase. It will affect the insulation performance and equipment life. In addition, due to the sealed structure of the switch cabinet, the temperature of the electronic components in the switch cabinet will gradually increase. When the temperature is higher than the operating temperature of the electronic components in the switch cabinet, the Electronic components will fail, which will make the switchgear unable to operate normally

[0004] In the prior art, ventilation holes are generally set up on the switchgear for heat dissipation, but it is difficult to provide a good dust-proof effect by opening the ventilation holes, especially in the northwestern region of my country, where the wind and sand and the temperature difference between day and night are relatively large

The outside air temperature is also high during the day, if only the ventilation holes are used for heat dissipation, the heat dissipation effect is poor, and the dustproof performance is poor; at night, the outside environment temperature is extremely low, which will reduce the temperature of the cabinet body. At the same time, if the ventilation holes are used for ventilation, the internal temperature of the cabinet is easily affected by the low temperature outside. When the temperature is too low, it is not conducive to the normal operation of the cabinet.

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