自动喷水灭火系统喷水强度均匀性试验研究  

Experimental study on water density uniformity of spray sprinklers

作　　者：陈民[1] 沈贺坤[1] 赵永顺[1] 

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2013年第4期400-402,共3页Fire Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2011BAK03B04-2)

摘　　要：为研究工作压力、安装间距等对洒水喷头喷水强度均匀性的影响,选取了3种喷头,喷头间距分别为3.0m和3.5m,工作压力分别为0.05～0.20MPa,开展了18次喷水强度均匀性试验。试验结果显示:喷头的工作压力越高,喷水强度均匀性越差,但无线性关系;安装间距越大,喷水强度均匀性越好;不论工作压力和安装间距如何变化,喷头集水率均在85%以上,且随着安装间距的增大,喷头集水率也随之增大。To study the influence of working pressure and instal- lation distance of spray sprinkler on its density uniformity, 3 types of sprinkler were selected, and 18 water distribution tests were conducted, with the installation distances of 3. 0 m and 3.5 m, and the working pressure of 0.05~0.20 MPa. The test results showed that when the working pressure was higher, the density uniformity of spray sprinklers gets worse, but there is no linear relation. The bigger the installation distance is, the better the density uniformity of spray sprinkler is. The water collection rate is all more than 85 percents no matter how the working pressure and installation distance changes, and the wa- ter collection rate increases with the increasing of the installa- tion distance.

关 键 词：喷水强度 工作压力 喷头间距 集水率 均匀性 方差 

分 类 号：X924.4[环境科学与工程—安全科学] TU892[建筑科学]