氮肥厂造气炉集散控制系统

The distributing control system for a gas-making furnace in a nitrogenous fertilizer factory

主要介绍氮肥厂造气炉DCS系统的构成和设计要点。该系统由监控层和过程控制层并配以少量现场仪表和控制设备构成,可实现对工艺过程的集中监视和各造气炉蒸汽压力及废热锅炉汽包水位的PID调节。文中还对系统功能和安全保护措施做了详细的描述。

The paper introduces the fomation of the distributing control system and the main designing points for a gasmaking furnace in a nitrogenous fertilizer factoryThe system is composed of supervision and control layer, process control layer with a few meters and control instruments,which may centrally supervise the technology process and regulate the steam pressure of each gasmaking furnace and the vapour level remaining in heat boilers by PID regulator The functions of the system and the measures of security and protection are described in detail