The Application of Safety Simulation Technology in the Fault Diagnosis of the Chemical Process

摘要

With the development of information and computational technology, the safety simulation technique is becoming more and more useful in the chemical process hazard assessment, hazard identification, and safety control system design and operating personnel training etc.The fault diagnosis of the gravity water tank is studied by using dynamic simulation of HYSYS (Hyprotech System for Engineers). The simulation results presents the method need not design problem-specific observer to estimate unmeasured state variables, and can identification and diagnosis faults simultaneously as well. The parameters of the chemical process are updated via on-line correction.