火气系统设计探讨

Discussion on Fire and Gas System Design

火气系统(FGS)包含了火灾自动报警系统和可燃气体和有毒气体检测系统(GDS)两方面的设计内容,涉及的专业知识多,设计方法也比较多样。介绍了FGS的应用现状和基本构成,基于某液化天然气接收站项目提出了FGS的设计方法,并依据标准规范和工程设计经验对FGS输入设备气体检测器、火焰探测器、低温探测器、手动火灾报警按钮及输出设备声光报警器的设置方法和技术要求进行了探讨。另外针对FGS非故障安全型的特点,对FGS的配置要点进行了论述。

The fire alarm and gas detector system（FGS）contains two aspects of automatic fire alarm system and the combustible and toxic gas detection system（GDS）.It involves a lot of professional knowledge.The design method is also variable.The application status and basic structure of FGS are introduced.A design method of FGS based on a liquefied natural gas receiving station project is put forward.According to standard specification and engineering design experience,the setting methods and technical requirements of FGS input device gas detector,flame detector,cryogenic detector,manual fire alarm button and output device audible and light alarm are discussed.In addition,the key points of the system configuration of the FGS are discussed in view of the characteristics of non fault safety type of the FGS.