论文部分内容阅读
洒水喷头的热响应特性直接影响整个自动喷水灭火系统的效率,而喷头的响应时间不仅与喷头安装高度、响应时间指数、喷头距火源径向距离等参数有关,还受环境温度的影响。本文以环境温度对普通高度建筑中喷头响应时间的影响为研究对象,使用软件DETACT12计算得到不同场景下喷头的启动时间,并使用统计分析软件SPSS13.0进行分析,得出环境温度与喷头启动时间之间的关系式,并研究了综合考虑喷头响应时间指数、安装高度和环境温度影响的情况下,喷头启动时间的变化规律,研究结果表明,喷头启动时间随环境温度的升高而减小,环境温度越低,喷头的启动时间越长。在其他条件相同的情况下,喷头响应时间指数越大、安装高度越高,其启动时间受环境的影响越明显。
The thermal response of the sprinkler directly affects the efficiency of the sprinkler system. The response time of the sprinkler is not only related to the height of the sprinkler, the response time index, the radial distance from the sprinkler to the sprinkler, but also the ambient temperature. In this paper, the effect of ambient temperature on the response time of nozzle in ordinary height building was studied. The software DETACT12 was used to calculate the start-up time of nozzle in different scenarios and analyzed by SPSS13.0 software. The relationship between ambient temperature and nozzle start-up time The relationship between the start-up time and nozzle start-up time has been studied considering the response time index, mounting height and ambient temperature. The results show that the start-up time of the nozzle decreases with the increase of ambient temperature, The lower the ambient temperature, the longer the nozzle starts. In other conditions are the same circumstances, the greater the nozzle response time index, the higher the installation height, the startup time by the impact of the environment more obvious.