CMDA直立型喷头布水及灭火试验

Experimental study on water distribution and firefighting of CMDA upright sprinkler

实验研究了不同高度对CMDA直立型喷头布水性能的影响.并将喷头布置在8m高度进行木垛灭火试验,通过观测喷头灭火时间、火场温度变化及烟气层温度变化情况来分析其灭火效果.结果表明,喷头水量主要集中在距喷头中心水平距离1.5～2.8m之间,且布水覆盖面积随着顶板高度的增加而增加;当喷头高于8 m时,布水覆盖面积已基本不受喷头高度的影响.

The effect of height on the CMDA upright sprinkler water distribution performance was studied by experiment.The fire test was conducted with sprinkler arranged at the 8 m height,by observing the extinguishing time,fire temperature changes and temperature changes in the smoke layer,to analyze the extinguishing effect.Results showed that,the water covers the area of 1.5～2.8 m from center,and the area increase with the ceiling height; when the height is over 8 m,the influence of height on area is small.