摘要
论述了火灾气体检测报警系统(FGS)在石化装置中应用的必要性和其技术特点与系统架构,并结合实际项目的应用具体展示了其优点。系统地分析了FGS的系统组成与报警原理;比较了其与传统的火灾报警盘与可燃气体报警盘相分离模式的优缺点;分析了FGS中相对有特点的数字量输入、输出(SDI,SDO)回路的工作原理。
The necessity, technical characteristics and system configuration of the application of fire ＆ gas system in petrochemical unit are discussed, and the advantages are introduced by combining practical application in an actual project. The system configuration and alarm principle of fire ＆ gas system are analyzed systemically, and the advantages and disadvantages of the separated mode are compared with traditional fire alarm tray and flammable gas alarm tray. The working principle of special data input and output loop are analyzed in F＆G system.
出处
《石油化工自动化》
CAS
2012年第2期11-15,共5页
Automation in Petro-chemical Industry
关键词
火灾
可燃气体检测
火气系统
fire
flammable gas detector
fire ＆ gas system
