摘要
通过试验对比研究了标准口径喷头和超大口径喷头的洒水分布规律及灭火特性。布水试验结果表明,喷头在其保护半径内的喷水强度分布均呈现先降低后增加的趋势;随着安装高度的升高,喷水强度逐渐降低,布水均匀性增强;随系统压力的增大,喷水强度增大。灭火试验结果表明,超大口径喷头能扑灭距喷头下方径向距离1.35m和2.00m的4层木垛火源,标准口径喷头表现为控火效果。
The water-spray distributive regularity and fire extinguishing characteristics of standard orifice sprinkler and large orifice sprinkler were researched hy experiments. The water distribution experiment results showed that, water spray distribution of two kinds of sprinklers all decreased firstly and then increased within the scope of protection radium; with the in creasing of installation height, water-spray intensity reduced gradually, and the evenness increased; with the increasing of system pressure, water-spray intensity increased. The fire ex periments results showed that four layer wood crib fire that was 1.35 m and 2.00 m from the center of nozzle could be extin guished by large orifice sprinkler, and was controlled only by standard orifice sprinkler.
出处
《消防科学与技术》
CAS
北大核心
2017年第3期345-348,共4页
Fire Science and Technology
基金
2015年武警学院青年教师科研创新计划课题(ZQNJS201544)
2016年灭火救援技术公安部重点试验室开放课题(KF201606)
2016年度武警学院自然科学基金培育课题(ZKJJPY201620)
关键词
自动喷水灭火系统
标准口径喷头
超大口径喷头
喷水强度
灭火性能
sprinkler system
standard orifice sprinkler
largeorifice sprinkler
water spray density
fire extinguishing performance
