依据nfpa的定义:吸气式火灾探测器,探测器由管道系统组成,管道成网络分布,从探测器延伸至被保护区域。探测腔内的抽气扇通过空气采样点及管路系统从被保护区采集空气并送回探测器主机,探测器会对空气是否含有火灾产物进行检测分析。(2-1.50.1 air sampling-type detector: a detector that consists of apiping or tubing distribution network that runs from the detector to thearea(s) to be protected. an aspiration fan in the detector housing draws airfrom the protected area back to the detector through air sampling ports,piping, or tubing. at the detector, the air is analyzed for fire products.(72:1-4))
就位置和间距而言,吸气式火灾探测器的每个采样点都应被视为一个点式探测器。从最远处的采样点到探测器的最长采样空气传输时间不能超过120秒。