摘要
通过自主研发的析出式气泡雾化细水雾系统对酒精、汽油、柴油、煤油进行灭火实验。针对空气扰动、水煤气反应、液滴喷溅三种可能性,通过不同的实验验证探究细水雾灭火强化火焰现象的原因。实验采用的喷嘴为具有单通道输送双流体功能的新型喷嘴,流量为120kg/h,SMD平均粒径为112μm,向下的纵向速度为26.49m/s,距离油盘0.9m,出口压力为0.3 MPa。实验结果表明:柴油、煤油等燃料强化的现象主要由空气扰动和液滴飞溅因素所致。酒精的强化现象只是由于油滴飞溅因素所致。
Fire extinguishing experiments by self-designed separate-out effervescent atomization water mist system on alcohol,gasoline,diesel and kerosene fire were carried out.According to the possibility reasons of air disturbance,water gas reaction and droplet spray,different experiments were carried out to research the cause of flame strengthening during fire extinguishing by water mist.The nozzle can transport two liquid in single passage.The flow was 120kg/h,the SMD average diameter was 112μm,the downward velocity was 26.49 m/s,the height was 0.9mand the output pressure was 0.3 MPa.The results showed that the flame strengthening of diesel and kerosene was caused mainly by air disturbance and droplet spray,the flame strengthening was caused only by droplet spray.
出处
《消防科学与技术》
CAS
北大核心
2017年第1期61-66,共6页
Fire Science and Technology
关键词
析出式气泡雾化
细水雾
油池火
火焰强化
空气扰动
水煤气反应
液滴飞溅
separate-out effervescent atomization
water mist
oil pool fire
flame strengthening
air disturbance
water gas reaction
droplet spray
