油罐火灾高、低倍数泡沫灭火特性比较研究

Comparative study on fire extinguishing characteristics of high and low expansion foam in oil tank fire

利用大尺寸柴油油池燃烧试验,选用PQ8型低倍数泡沫枪、PFT4高倍数泡沫发生器分别施加低倍数和高倍数泡沫灭火剂,研究高倍数、低倍数泡沫各自的适用环境。根据试验灭火过程及试验数据,使用定性和定量的方法对比分析高、低倍数泡沫灭火系统对火焰区的扰动作用。测量记录火焰区温度、泡沫用量、灭火时间等数据,对比分析高、低倍数泡沫灭火系统灭火能力。结果表明,对于油罐火灾等,低倍数泡沫灭火能更快控制火情,且泡沫用量更少。

By large scale diesel oil pool combusticion test and using PQ8 low expansion foam gun and PFT4 high expansion foam generator, the applicable environment of high and low expansion foam was studied. According to the experimental fire- fighting process and the test data, the disturbance .effect to the flame of high and low expansion foam fire-extinguishing sys terns were compared and analyzed qualitatively and quantitatively. The temperature of the flame area, the amount of foam and the time of fire extinguishing were measured, to compare and analyze the fire extinguishing capacity of high and low expansion foam fire extinguishing system. The results showed that low expansion foam fire extinguishing can control the fire more quickly and the amount of foam is less for the oil tank fire.