Outdoor electrical control cabinet with dehumidifying and cooling functions, and control method therefor

Abstract

The invention discloses an outdoor electrical control cabinet with dehumidifying and cooling functions, and a control method therefor. A dehumidifying and cooling apparatus equipped with a condensing and water-collecting assembly and a semiconductor refrigerating part is provided for performing dehumidifying and cooling on the interior of the control cabinet, and discharging condensed water out of the cabinet so as to avoid influence from tropical island weather on the electrical control cabinet installed outdoors, and to solve the problems that an internal PCB, a circuit board, an electronic clamp part, a CPU and the like suffer from moisture, corrosion, breakdown, damage and the like; therefore, constant-temperature and stable operation of the electrical control cabinet is ensured, thereby satisfying requirements of tropical island plant establishment and normal operation; in addition, solar energy power generation can be performed automatically according to solar intensity; and the electrical cabinet can be subjected to grid connection with the mains supply for realizing power supply, so that the dehumidifying and cooling functions are improved, and automatic regulation is achieved according to weather changes.

Description

technical field [0001] The invention relates to an electrical control cabinet, more specifically, to an open-air electrical control cabinet with dehumidification and cooling functions and a control method. Background technique [0002] Some iron and steel enterprises need to be built on tropical islands. Due to the extremely hot and humid climate of the islands, the humidity exceeds 85% or even as high as 90% for at least 6 months a year. To build a modern iron and steel enterprise here, the electrical control cabinets of the automatic control equipment are all installed on the spot. If no cooling and dehumidification treatment is adopted, it will not be possible to ensure that the electronic cards are free from corrosion, and the internal CPU and control cards will be maintained for a long time. Continuous operation will pose a serious threat to the stable operation of the automatic control system. [0003] At present, the on-site electrical control cabinets have obvious d...

AI Technical Summary

Problems solved by technology

To build a modern iron and steel enterprise here, the electrical control cabinets of the automatic control equipment are all installed on the spot. If no cooling and dehumidification treatment is adopted, it will not be possible to ensure that the electronic cards are free from corrosion, and the internal CPU and control cards will be maintained for a long time. Continuous operation, which poses a serious threat to the stable operation of the automatic control system

[0003] At present, the on-site electrical control cabinets have obvious dew condensation problems caused by the temperature difference between day and night due to the humid and hot air. Climate and environmental problems are frequently damaged, and corrosion has brought huge troubles to the automation control system, causing many faults and greatly increasing maintenance costs

Due to the large number of electrical control cabinets installed on site and the open air, it is not only impossible to install air conditioners, but it is obviously unrealistic to use a large number of dehumidifiers, and the effect is not obvious. Therefore, this is a problem that has been seriously troubled in tropical and island areas. The big problem of building enterprises and the normal operation of production is also a big problem that needs to be solved urgently

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