可燃物必需洒水密度测试系统的研制及应用

Development and application of required delivered density test system

为确定扑救典型场所火灾所需要的洒水密度,完善自动喷水灭火系统、优化设计及灭火效能评价的方法,搭建可燃物必需洒水密度(RDD)测试系统。系统采用整体化可拆卸结构,由布水系统、机架和控制系统组成。利用RDD测试系统,以非发泡塑料制品生产车间为研究对象,选取中危险II级工业建筑火灾试验模型最小单元,开展RDD试验研究,观察洒水密度对火灾热释放速率(HRR)的影响。结果表明,在规定的试验条件下,中危险II级工业建筑火灾试验模型的RDD值约为10.0 mm/min。

For the sake of determining RDD for extinguishing the fires in typical places,an RDD test system was established. With dismountable structure and integrated design,the system was made up of a water distributing system,a frame and a control system. It was applied to determining RDD of the minimum unit of fire-test model of medium risk II industrial building. The result shows that under the specified experimental condition,the RDD value of the test model is about 10.0 mm/min.