有通风弹药舱内慢速火灾特性数值研究  

Research on characteristics of slow fires in the ventilation ammunition cabin

作　　者：李玉峰[1] 张宏[1] 霍岩[2] 

机构地区：[1]中国船舶重工集团公司第七一三研究所,河南郑州450015 [2]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

出　　处：《舰船科学技术》2015年第12期160-165,共6页Ship Science and Technology

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.

关 键 词：通风 弹药舱 慢速火灾 热流场 

分 类 号：U698.4[交通运输工程—港口、海岸及近海工程]