Automated temperature control system chilled water cooling towers ELECTRIC

摘要

Automated system for regulating the chilled water temperature electric fan of the cooling tower can be used in industrial plants, where for cooling the circulating water cooling towers are used. The system includes a drive circuit for the frequency converter - induction motor, microprocessor drive control system and the sensor system. Combined automatic control system implements control of the electric drive frequency of the perturbation, calculating the necessary compensation for external influences the magnitude of the control signal, and from the deviation, by introducing a correction for the temperature feedback signal. The technical effect consists in automating the process control of water cooling, and stabilization of its temperature at a desired process requirements on the level, which leads to strict adherence to the process conditions, and to improve the productivity and product quality.