空间站细水雾灭电缆火灾地面试验研究

Experimental Study on Electric Cable Fire Extinguishing in Space Station by Fine Water Mist

电缆火是空间站典型火灾之一。在分析空间站电缆火灾特征和微重力条件下水雾场特征的基础上,搭建模拟空间站试验平台,对不同雾粒直径、喷射方位、隔挡等对过载电缆的温度控制效果及水雾条件下电缆的绝缘性能进行地面试验研究,得出合适的雾粒直径范围及喷嘴的布置方式。

Electric Cable Fire is typical in space station. Based on the analysis of the characteristics of both the electric cable fire and fine water mist in microgravity, a test bed is built to carry out experiments to study the temperature control effect of the overload electric cable by changing mist diameter, spraying direction, etc., as well as the insulation performance of the cable in water mist. The appropriate range of mist diameter and installation method of nozzles are obtained for the electric cable fire in space station.