水雾对开口油罐燃烧特性的影响

采用3种不同开口尺寸的油罐,进行了几组小尺寸的油罐燃烧模拟实验。通过监测油罐内外2个不同点的温度变化,研究了开口尺寸、水雾和油品种类(汽油和柴油)对油罐燃烧特性的影响。研究结论对于油罐消防灭火有一定的指导意义和参考价值:在实际消防灭火时,重点要放在开口中心,且满足灭火的有效雾通量大于临界雾通量,否则不但不能灭火,还会促进油池火的燃烧。

Influence of Water Mist on Burning Characteristics of Open Oil Tank

Three different opening-size of oil tanks were used to simulate small-scale of oil tank fire.By monitoring the temperatures at inside and outside tank,the influences of opening-size、water mist and oil kinds(gasoline and diesel oil)to combustion characteristics of oil tank were studied.The obtained results have a guiding meaning and reference value for oil tank fire protection.It is suggested that in a actual extingiushment,more attentions should be paid to mouth center of oil tanks and the effective water mist flux should be more than the critical water mist flux,only this way can fight fire effectively,otherwise will promote burning.