PCS7-based polymerization reactor control device and control method thereof

Abstract

The invention belongs to the control field and flow measurement technological field and relates to a PCS7-based polymerization reactor control device. The device comprises a PCS7 controller, a digitaldisplay module, an audible-visual alarm module, an analog-to-digital converter, a signal amplifier and a plurality of sensors and regulating valves; the sensors comprise liquid level sensors and temperature sensors and are connected with the PCS7 controller through the signal amplifier and the analog-to-digital converter; the PCS7 controller is used for controlling the opening and closing of theregulating valves; the digital display module is connected with the PCS7 controller and is used for displaying the operation conditions of the regulating valves and a reactor; and the audible-visual alarm module gives out alarms according to pressure and liquid level detection in the reactor, and controls corresponding valves, buzzers and indicator lights. The function design of the device is powerful and user-friendly; various needs of a user for the control of the reactor are considered; and peak-load shifting is carried out, and therefore, costs can be saved for the user; and environmentalfriendliness can be realized.

Description

technical field [0001] The invention relates to the field of control and flow measurement technology, in particular to a PCS7-based polymerization reactor control device and a control method thereof. Background technique [0002] Modern polymerization engineering covers a wide range and develops rapidly. Especially in recent years, due to the synergy, intersection and penetration of various disciplines, the definition of polymerization reaction engineering has evolved from the combination of polymer science, chemical technology and process engineering principles to the combination of control engineering principles and information technology. Polymerization is a polymer exothermic reaction production process, the temperature in the reactor is high, the pressure is high, and the controlled variable has the characteristics of time lag, large inertia and time variation. Therefore, the construction of a polymerization process control system that meets the needs of Chinese enterp...

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Problems solved by technology

[0010] With the traditional control scheme, the output and quality of product D are not insufficient. At the same time, the utilization rate of raw materials is not high, the energy consumption is large, and the system operation is not stable enough.

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