核电站电缆间阻碍物对水喷雾灭火系统的影响  

The effect of the shielding on the water spray extinguishing system in nuclear cable spreading room

作　　者：安君红 董希琳[1] 李思成[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》2014年第2期170-173,共4页Fire Science and Technology

摘　　要：以FDS软件为基础,采用t2火燃烧模型,对核电站电缆分配室火灾进行数值模拟,探讨不同设置间距的空间阻碍物对水喷雾系统灭火效能的影响.结果表明,水喷雾灭火系统对电缆桥架火灾具有非常明显的抑制作用；不同设置间距的空间阻碍物对水喷雾系统喷头动作时间以及火源熄灭时间影响不大,但对喷头动作数量具有较为明显的影响；电缆桥架间距宜保持在0.4～0.8m之间.In this paper,t-square fire burning model in FDS was used to simulate different cable spreading room fire divided by the height of space shielding in nuclear power plant to explore the effect of space shielding on water spray system extinguishing performance.The results showed that the water spray system had a very significant inhibition on cable tray; different spacing affect the sprinkler operating time and extinguishing time a little,but has obvious effect on the number of nozzles action; the spacing of cable tray should be 0.4～0.8 m.

关 键 词：水喷雾灭火系统 电缆桥架 热反馈 

分 类 号：X913.4[环境科学与工程—安全科学] TU892[建筑科学]