Design of Intelligent Anti-Condensation Control System for Electrical Testing Equipment Cabinets
The condensation phenomenon in the electrical testing equipment cabinet will have a significantly negatively impact on the normal operation of the equipment and may pose a threat to the safety of the operators.Based on the analysis of the development process of condensation in the equipment cabinet and the principles of anti-condensation control,a general structure for an intelligent anti-condensation control system is proposed.This system consists of a central control unit made up of a Programmable Logic Controller(PLC)and a Human-Machine Interface(HMI),a temperature and humidity control device,and a peripheral actuator.The system evaluates the impact of temperature and humidity factors on condensation and designs a comprehensive control strategy.It incorporates several protective functions,including equipment fatigue protection,low-temperature protection,rapid cooling protection,and high-temperature warning signal processing,thereby enhancing the operational safety and stability of the equipment.The HMI provides system monitoring,and tests were conducted on the effects of different relative humidity levels,varying heights,and different dehumidification device layouts on the condensation rate of water vapor on the walls of the cabinet.Test results show that the higher the relative humidity,the longer it takes for the condensation rate to decay to zero.The rate of condensation change mainly occurs in the upper half of the cabinet.Installing the intelligent anti-condensation device in the upper area of the cabinet results in a more significant effect.
electrical testing equipment cabinetanti-condensationtemperature and humidity controllerintelligent dehumidification device
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维普
