A development of experimental apparatus with windows based real-time software for process control education

摘要

An experimental education program and the apparatus with computer software for chemical process control are developed. A multi-stage liquid level control system is chosen as a target process. The target process is composed of one storage tank, two series liquid level tanks and one more interactive liquid level tank with an on-off solenoid valve at the position between the store tank and the first level tank as the actuator and a DP-cell at the last stage level tank as the liquid level sensor. The software is programmed under the platform of both DOS and Windows 95, 98, NT. It is composed of the real-time graphic view of important variables, data sheets, dynamic process flow diagram, manual setting of set-point, manual operation of actuator, setting of control parameters, auto tuning module, zero-span, data editor, signal filtering, etc.