持水冷却剂对火灾中邻近罐壁的冷却性能  

The research on cooling performance of water coolant for tank surfaces subjected to tank fire

作　　者：吕鹏[1] 董希琳[1] 舒中俊[1] 方军利[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2013年第12期1394-1396,共3页Fire Science and Technology

基　　金：国家"十二五"科技支撑计划项目"超大型油罐火灾防治与危险化学品事故现场处置技术研究"(2011BAK03B07)

摘　　要：利用自行设计的罐壁冷却性能模拟实验装置对持水冷却剂在不同冷却强度、浓度和热辐射强度下的冷却性能进行了测试,并与水的冷却性能进行对比,同时对持水冷却剂的冷却降温机理进行了理论分析。结果表明:持水冷却剂比水具有更好的冷却性能;随着冷却强度的增大,持水冷却剂与水的冷却效果差别逐渐减小;浓度越大,持水冷却剂的冷却作用越强,且随着热辐射强度的增大,其冷却效果越明显;汽化吸热冷却作用和热辐射阻隔作用的增强是持水冷却剂冷却性能提高的主要原因。The effects of cooling intensity,concentration and heat radiation intensity on the cooling performance of water coolant were studied by self-designed experimental platform.The cooling performance comparison between water coolant and water was discussed,and the cooling mechanism of water coolant was analyzed.The results showed that the water coolant has the better cooling performance compared to the water,the differences of cooling effect between water coolant and water gradually reduce with increasing cooling intensity,the cooling performance of water coolant is more obvious with increasing concentration and heat radiation intensity,and the evaporation cooling and the heat radiation blocking are the major contributors to the enhanced cooling performance of water coolant.

关 键 词：持水冷却剂 火灾 油罐 冷却性能 

分 类 号：X924.4[环境科学与工程—安全科学] TU545[建筑科学—建筑技术科学]