含复合添加剂细水雾灭聚苯乙烯泡沫火实验研究

摘要

To explore the impact on the efficiency of water mist with compound additives for extinguishing polystyrene foam fire, this paper has carried out the experimental research on water mist with NaCl+SDBS com⁃pound additives for extinguishing polystyrene foam fire. With SDBS of different concentration being added into 2.5%NaCl solution, the temperature acquisition system is used to measure temperature. With the temperature and the time of fire extinguishing as characteristic parameter, fire-extinguishing time is compared. The results show that: the efficiency of extinguishing fire was markedly improved and fire-extinguishing time changed from 500 seconds when the only additive of NaCl was contained to 190 seconds when NaCl+0.4%SDBS was contained.%为探究含复合添加剂的细水雾对灭聚苯乙烯火效率的影响，本文开展了含氯化钠+十二烷基苯磺酸钠复合添加剂的细水雾对灭聚苯乙烯火的实验研究。在2.5%氯化钠溶液中加入不同浓度的十二烷基苯磺酸钠，利用温度采集系统测量火场温度，以火场温度与灭火时间为表征参数，将其灭火时间进行对比。结果表明：含复合添加剂的细水雾对灭聚苯乙烯火效率有了明显提高，灭火时间由单一氯化钠添加剂时的500秒变为含有氯化钠和0.4%SDBS时的190秒。