Isothermal chemical vapor infiltration PLC-IPC control system based on plug flow reaction dynamic model

The utility model discloses an isothermal chemical vapor infiltration (ICVI) programmable logic controller (PLC)-industrial personal computer (IPC) control system based on a plug flow reaction dynamic model. The control system comprises an IPC, a PLC which performs communication with the IPC, a vacuum diaraphm pump, a heating unit, a mass flow valve, a flow sensor, a pressure sensor, a temperature sensor and an I/O interface, wherein the IPC includes a human-machine Interface (HMI), an effective detention time calculation unit and a flow calculation unit; the PLC includes three control loops, namely a pressure control loop, a temperature control loop and a flow control loop. The ICVI PLC-IPC control system, based on the advantages of the IPC and the PLC, performs comprehensive reconstruction on a conventional control system, applies conventional detailed reaction mechanism to the process parameter control and optimization of a vapor infiltration furnace, performs real-time calculation of the intermediate measurement parameter, the effective detention time, through a dynamic model of the plug flow, and achieves effective control of the effective detention time.