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The gasifier accident safety system is used to maintain the operation of the plant and ensure the safety during startup, shutdown, and gasifier purging. It has 3 different functions: a program, interlock, and automatic trip mechanism. The automatic trip mechanism is used to monitor the operation of the device; in case of problems, it triggers the shutdown of the gasification furnace ； Interlocking takes other measures besides shutting down the gasification furnace ； The program is used to ensure accurate timing of valve operations during startup, shutdown, and vaporizer purging. The gasifier safety system is a comprehensive set of safety automatic operation and monitoring systems that cover everything from startup and operation to shutdown. During the operation of the gasification furnace, with each step carried out, whether manually or automatically, the safety system continuously monitors the position of the most important valves in the production process and automatically adjusts the key process parameters, thereby ensuring that the unit operates in the safest manner under normal or specified conditions. If the valve is not in its correct position or remains deviated from the specified operating parameters even after automatic adjustment, the system will issue an alarm; in severe cases, this will trigger a shutdown mechanism to bring about a stoppage. Once the safety system issues a stop signal, the system’s stopping action will proceed automatically to completion, regardless of whether the system has returned to normal operation during that process. Only after the entire action is completed and restored can the system be ready to start driving again.