Configuration design of unit merging and splitting

Unit merging and disassembly refers to merging one or more sections of a process unit into adjacent units or disassembling them back to the unit according to process control requirements in order to ensure high quality and efficient production of products under different process operation conditions. According to the design requirement of unit merging and disassembly in special project, taking ECS-700 DCS control system as the platform, combining with process flow and control requirement, this paper designs control model, carries out software and hardware configuration design, analyses the configuration difficulty of unit merging and disassembly, studies control module, designs man-machine interface, completes debugging and verification, and realizes large-scale production for the first time. The configuration design in this paper has been verified by field debugging and meets the requirements of process control. The system runs reliably and steadily. It can provide a useful reference for the design of similar plant control system. (author)