4.The control system of Gathering Center 28 in west Kuwait facilities expansion project is an integral DCS system that composed of three subsystems:a process control system (PCS),an emergency shutdownsystem(ESD) and a fire and gas system (F&G).
5.The emergency shutdownsystem ESD in FCC unit revamp is introduced,ESD system composition,its function characteristics and control method are detailed described.
6.The design and application situation of Dtltav system developed by EMERSON Co. ,and TRIDENT system by TRICONEX Co. ,as the matching emergency shutdownsystem(briefly called ESD) are introduced in the control system of VCM production plant in Inner Mongolia Haiji Chlor-Alkali Chemical Industry Co.
7.The working principles,self-protection inter-lock programme and man-computer interface of the emergency shutdownsystem(ESD) with programmable controller(PLC) were introduced. This system featured by simple structure,convenient programme,high reliability and rational interface.
8.In the course of absorption and eliminated complement element handling, a new and quick method has been suggested, and a Monte Carlo digital simulation technic has been applied to certain confidence bounds of the failure probability of the reactor shutdownsystem.
9.A key point written to the restart data set during controlled shutdown(after all system activity has ceased). During a subsequent warm restart, information in the warm key point is used to reestablish system tables to the status they had at controlled shutdown.
