Sealed structure of mini-type electronic dehumidifying and cooling machine

Abstract

The invention provides a sealed structure of a mini-type electronic dehumidifying and cooling machine. A heat radiation face and a refrigerating face of a vertical electronic refrigerating sheet are sealed to be a wet air heating channel and a wet air condensing channel, which are mutually independent and are provided with vertical communicated upper parts. One end of a wet air leading channel is communicated with the lower part of the wet air heating channel, and the other end of the wet air leading channel is provided with a mini-type blower. The lower end opening of the wet air condensing channel is sealed, and a refrigerating face of the wet air condensing channel aligns to a dried cool air discharge hole which is arranged at a vertical position. A water collection hopper is arranged below a condensing sheet of the refrigerating face. A drain pipe of the water collection hopper is communicated to the outside of a shell box of the sealed structure of the mini-type electronic dehumidifying and cooling machine through leading of the water collection hopper. The installation on the lateral face or the bottom face outside an indoor armor switch cabinet or various terminal bins of an electric system with a 6-kV or above voltage class is met. The inside spaces of the armor switch cabinet and the terminal bins are not occupied. No interferences of a high voltage and a strong magnetic field exist. The equipment operation inside the armor switch cabinet and the terminal bins is not influenced by the maintenance and repair of the mini-type electronic dehumidifying and cooling machine.

Description

Technical field [0001] The invention relates to a closed structure of a miniature electronic dehumidification and cooling device installed on the outside of an indoor armored switch cabinet with a voltage level of 6kV and above in a power system and various indoor and outdoor terminal cabinets. In particular, the miniature electronic dehumidification and cooling device is installed in a closed structure outside the dehumidification and cooling equipment, which can meet the requirements of the dehumidification and cooling equipment without being forced to cooperate with power failure during the maintenance of the miniature electronic dehumidification and cooling device. The ambient temperature in the cabinet, the power consumption of the miniature electronic dehumidifier with closed structure is lower than that of the electronic dehumidifier installed in the same power terminal box cabinet that is currently popularized and tried in the power system, and the closed structure of t...

AI Technical Summary

Problems solved by technology

The current situation of the power system is that the dehumidification effect of the indoor armored switchgear with a voltage level of 6kV and above is not good. Often the relative humidity in the switchgear room has reached 50% RH or even lower. After opening the armored switchgear, it is found that the electrical appliances in the cabinet There is condensation water on the equipment, indicating that this dehumidification method has electrical safety hazards, and due to the ventilation of the indoor and outdoor air of the switch, the power consumption of the dehumidification equipment has increased significantly

The dehumidification equipment of various indoor and outdoor terminal cabinets adopts the method of installing electric heating in the cabinet with natural ventilation or forced ventilation, and sometimes the second, third and fourth lead wires around the electric heater are prematurely aged or burned. and because the air inside and outside the cabinet communicates, frequent heating and dehumidification not only has poor dehumidification effect, but also keeps high power consumption

The electronic dehumidifiers installed in various indoor and outdoor terminal cabinets that are being promoted and tested by the power system, there is no installation position for the electronic dehumidifier due to the compact design and installation of electrical equipment in the terminal cabinets, and sometimes even if they can be installed in the terminal cabinets In addition, because the installation location affects the convenience of maintenance of the main equipment in the terminal cabinet, and because the electronic dehumidifier installed in the terminal cabinet is being promoted and tested by the power system, the fan wind used for cooling the electronic refrigeration sheet is on the hot side. Side up and down circulation, hot air is not easy to circulate to the side of the condensation surface, and it is not easy to exchange heat and cold with a large temperature difference on the condensation surface, less condensation and easy frost and ice on the condensation surface, reducing the dehumidification effect. The heat released by the condensation is stored in the terminal box

Due to the short trial period, there has not been a case where the maintenance and replacement of electronic dehumidifier fans and other vulnerable parts installed in the terminal cabinet must be forced to cooperate with the power outage. Therefore, the promotion and trial only install electronic dehumidifiers in the terminal cabinet It cannot be used for dehumidification in indoor armored switch cabinets with voltage levels of 6kV and above in the power system.

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