摘要
为掌握有通风的弹药舱室内火灾初期特性,从而为火灾早期探测提供指导,采用数值方法对舱室内不同位置的慢速火灾进行模拟。通过对各温度和烟雾探测器位置处的数据分析发现,在通风影响下,慢速火灾时各测点的输出值均较小,短时间内不易达到通常的报警阈值;舱室内通风下游的探测器更易受火灾影响,而且靠近回风口一侧的火灾热烟气在不断累积后沿着舱室边沿向通风上游逐渐扩散。
In order to grasp the characteristics of fires in the ventilation ammuniation cabin and provid guidance for early fire detection, cabin slow fires at different positions were simulated by numerical method. The data of temperature and smoke detectors were analyzed. For the slow fires, the output values of detector are small and not easy to achieve in the alarm thresholds under the influence of ventilation. The detectors in ventilation downstream more susceptible to be impacted by fires, and the hot gas produced by the fire at ventilation downstream gradually spread to the ventilation upstream along the edge of cabin after accumulating.
出处
《舰船科学技术》
北大核心
2015年第12期160-165,共6页
Ship Science and Technology
关键词
通风
弹药舱
慢速火灾
热流场
ventilation
ammunition cabin
slow fire
heat flow field
