Semiconductor dehumidification device with partition for cooling and dehumidification of switchgear

Abstract

The invention discloses a semiconductor dehumidification device provided with a partition plate and used for cooling and dehumidification of a switch cabinet. The switch cabinet and the dehumidification device are involved. The switch cabinet comprises a switch room, a busbar bin and a cable bin. The busbar bin and the cable bin are provided with temperature and humidity sensors respectively. The temperature and humidity sensors are used for monitoring the temperature and humidity inside the bins in real time and transmitting result data to a controller of the dehumidification device. The dehumidification device comprises the controller, a temperature and humidity sensor in the dehumidification device, a drainage type semiconductor dehumidifier, the air collection partition plate, an exhaust fan, an air collection cover and a PVC pipeline. The temperature and humidity sensor is connected with the drainage type semiconductor dehumidifier, an air collection baffle is arranged below the drainage type semiconductor dehumidifier, the exhaust fan is arranged below the air collection baffle, the air collection cover is arranged on the exhaust side of the exhaust fan, and the air collection cover is connected with the PVC pipeline which is made communicated with the switch room, the busbar bin and the cable bin in the switch cabinet. The semiconductor dehumidification device is reasonable in structure, high in sensitivity, good in reliability and high in safety.

Description

technical field [0001] The invention relates to a semiconductor dehumidification device used for cooling and dehumidifying a switch cabinet. Background technique [0002] In summer, especially during the rainy season, the weather is humid and hot, and the long-term operation of circuit breakers and other equipment inside the switch cabinet will generate heat, which will eventually cause condensation in the high and low voltage cabinets in the substation. The protection level of the switchgear is high, and its heat dissipation and ventilation conditions are poor. Due to the good sealing, condensation is formed, and it adheres to the insulating surface to accelerate the deterioration of the insulating medium, causing the circuit breaker to trip or the electrical equipment to be damaged. After several years of operation of the switchgear hanging on the grid, the problem of equipment discharge and heat generation is very prominent. A large part of the reason is that the dehumidi...

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Problems solved by technology

[0003] In addition, traditional electric cabinet dehumidification devices mostly use direct heating method and semiconductor refrigeration method. Direct heating method cannot really remove moisture in the air. Although semiconductor refrigeration method can really remove moisture, the temperature of the discharged air is relatively low. , the condensation phenomenon will still occur on the surface of the electrical appliances in operation, which will affect the normal operation of the electrical appliances.

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