Dehumidifying device

Abstract

The invention discloses a dehumidifying device. The device comprises a shell, a semiconductor refrigerator, a heat dissipation component, a condensation component, a humidity acquisition module and acontrol circuit board. A condensation cavity and a heat dissipation cavity are arranged in the shell. A cold end of the semiconductor refrigerator is arranged in the condensation cavity. A hot end ofthe semiconductor refrigerator is arranged in the heat dissipation cavity. The condensation component is fixed to the cold end of the semiconductor refrigerator, the heat dissipation component is fixed to the hot end of the semiconductor refrigerator, an air inlet is arranged above a side wall, located on one side of the condensation cavity, of the shell, an air outlet is arranged in a top wall, located on one side of the heat dissipation cavity, of the shell, an air duct is arranged between the condensation cavity and the heat dissipation cavity, and a water outlet is arranged on a bottom ofthe shell. A Peltier effect of a semiconductor material is used, air entering into the condensation cavity is condensed into water drops which are discharged, the air entering into the heat dissipation cavity is heated into hot air and then is discharged, an air circulation channel is formed, the air in a cable chamber is subjected to circulation dehumidification treatment, dehumidification and condensation prevention effects are good, a structure is simple, and cost is low.

Description

technical field [0001] The invention relates to the technical field of humidity control, in particular to a dehumidification device. Background technique [0002] Ring network cabinets commonly used in power distribution systems are usually used in various indoor and outdoor power distribution sites. The cable room in the ring network cabinet forms a relatively independent compartment due to functional requirements, and the relatively independent compartment has a passage for exchanging with the outside air based on the cable entry and exit. Due to the fact that the cable room is relatively closed but always exists with the external space, especially the air passage with the cable trench (cable bridge), it is easy to cause the moisture brought by the air with high humidity to enter the cable room and cannot be discharged in time. When the temperature conditions are satisfied, a large amount of condensation will be generated in the cable room, which will cause the aging of t...

AI Technical Summary

Problems solved by technology

Due to the fact that the cable room is relatively closed but always exists with the external space, especially the air passage with the cable trench (cable bridge), it is easy to cause the moisture brought by the air with high humidity to enter the cable room and cannot be discharged in time. When the temperature conditions are met, a large amount of condensation will be generated in the cable room, causing the aging of the insulation device to accelerate, causing a series of electrical faults such as discharge short circuit, and even causing an electrical fire in the event of a fault, seriously affecting the safe operation of the ring network cabinet

[0003] In the existing ring network cabinets, it is generally possible to install a humidity sensor and a heating plate in the cable room of each cabinet to form a simple heating and dehumidification device. According to the humidity signal collected by the humidity sensor, the heating plate with rated power is used to combine the defined Start at "75% RH" and stop heating the internal air at "70% RH" to dehumidify. The dehumidification method of this heating dehumidifier is simple and rough, and the dehumidification and anti-condensation effect is poor; The control and management of temperature and humidity can be achieved by installing special dehumidifiers or air-conditioning equipment, but (1) the layout and operating locations of many ring network cabinets do not meet the conditions for installing such special equipment; (2) special equipment such as dehumidifiers or air conditioners (3) Dehumidification and anti-condensation treatment is performed on the cable room in the ring network cabinet by installing such special equipment in the ring network cabinet, which wastes energy and is not environmentally friendly

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