防护工程感烟探测器延迟报警的数值模拟研究

Numerical Research on the Delay Phenomenon of the Smoke Detector in Protective Engineering

针对防护工程空调房间感烟探测器出现的报警延迟现象,分析房间内不同送回风条件下的气流流动是该现象的主要原因之一。选择防护工程三种典型的送回风工况,建立模型并通过火灾动态模拟软件进行数值计算,对应得到不同送风条件下探测器更为合理的安装位置,该位置的传感器能够有效缩短火灾探测器的报警时间。

In protective engineering, the delay phenomenon ofthesmoke detectorin air conditioning room caused by the air flow. In this paper, choose three typical condition of the wind to calculate the smoke diffusion through the software of fire and dynamic simulation. The results shows that a different installation location of smoke detector can alarm the fire earlier.