早期空气采样探测系统在高大建筑物内的应用  

APPLICATION OF EARLY AIR SAMPLING SMOKE DETECTION SYSTEM TO SPACE OF TALL BUILDINGS

作　　者：李爽[1] 

机构地区：[1]中国京冶工程技术有限公司,北京100088

出　　处：《工业建筑》2009年第S1期983-985,1000,共4页Industrial Construction

摘　　要：在一些大型工业厂房、大型库房、中央大厅、体育馆等高大建筑的消防设计过程中,选择何种形式的火灾探测器成为一个困扰我们的问题。传统的点型探测器在这种高大空间很难提供有效地保护,因为探测器通常安装在指定的位置,由于烟雾具有分层现象,烟雾都很难到达顶部的探测位置,以致于无法准确报警。而能够检测到烟雾浓度的光束型感烟探测器系统则相对不够灵敏,而且需要有固定的安装位置。钢结构建筑在日照和风力作用下都会稍有位移,导致光束不能对准。再者,对探测器的日常维护和试验在此类高大建筑中通常很难且需要昂贵的设备。因此,需要选择一种更加适合高大空间建筑内的探测器,使其既要弥补传统探测器的不足,又要达到灵敏度高、安装可靠、适应性强、维护简便等要求,而空气采样式极早期烟雾探测系统则正是能够实现上述全部要求的火灾报警系统。The choice of fire detector used in the fire protection design of tall buildings(such as large industrial plants,large-scale warehouse,central hall,gymnasium etc)has become a problem that has troubled us.Traditional point-type detectors can not provide effective protection in such a large space.Because of the installation location and the smoke stratification,it is very difficult for smoke to reach the top of the detection location.So the traditional detectors can not trigger the fire alarm accurately.The beam-type smoke detector system which can detect the concentrations of smoke is lack of sensitivity relatively because of the fixed installation location and beam offset caused by sunshine and wind.Furthermore,daily maintenance of the detectors and experiments in such tall buildings are difficult,and it requires more expensive equipment.Therefore,a more suitable detector should be chosen,which can compensate for the shortcomings of traditional detectors to achieve high sensitivity in large space building.This kind of detector will be reliable,adaptable and simple.The very early smoke detection system is able to achieve all the requirements of the above fire alarm system.

关 键 词：高大建筑物 火灾探测器 空气采样式极早期烟雾探测系统 

分 类 号：TU892[建筑科学]