摘要
在吊顶净高16 m的情况下以标准燃烧物进行试验,研究高大净空场所自动喷水灭火系统灭火效果。第一组采用快速响应喷头,点火120 s后火焰高度7.2 m,点火位置正上方喷头动作,喷头动作后温度降至约30℃,周围喷头未动作,洒水对控制火势影响较小。339 s开始相隔喷头动作,喷头出现跳跃开放现象。第二组采用标准响应型大水滴喷头,点火164 s后点火位置正上方喷头动作,仅动作了一只喷头。自动喷水灭火系统能有效控火,但不能灭火。火灾危险等级较高的场所不宜采用快速响应喷头。
The fire extinguishment experiment of normative comburant was done to research the effect of sprinkler system at big space in witch height is 16 m. The fast response sprinklers were used in experiment 1 and the height of fire is 7.2 m after 120 s. The sprinkler above the fire acted and the temperature of fire decline to 30 ℃. The sprinklers nearby didn＇t act so the control of fire is weak. The sprinkiers begin to act but not one by one after 339 s. The deluge sprinklers of normal response were used-in experiment 2 and only the sprinkler above the fire acted at 164 s after ignition. The experiments shows that the sprinkler system could control fire well but could not put out the fire. The location with high fire risk should not use the fast response sprinkler.
出处
《消防科学与技术》
CAS
北大核心
2009年第12期912-915,共4页
Fire Science and Technology
基金
国家"十一五"科技支撑计划项目(2006BAK06B03)
