水雾对煤粉深位火灾烟气抑制实验研究  

Experimental study on smoke suppression of water mist in deep smoldering of pulverized coal

作　　者：吕东[1] 李晋[1] 王玥[1] 涂建新 LV Dong;LI Jin;WANG Yue;TU Jian-xin(Tianjin Fire Research Institute of MPS,Tianjin 300381,China;Jiangxi Royham Special Fire Control Equipment Manu.facture Co.,Ltd,Jiangxi Nanchang 330200,China)

机构地区：[1]公安部天津消防研究所,天津300381 [2]江西荣和特种消防设备制造有限公司,江西南昌330200

出　　处：《消防科学与技术》2018年第7期881-883,共3页Fire Science and Technology

基　　金：公安部重点研究计划项目"典型固体自热物质火灾特征及事故处理技术研究"(2017JSYJA13)

摘　　要：设计小型实验装置,采用热电偶和烟气传感器,对煤粉深位火灾的阴燃温度和烟气浓度进行监控,设置细水雾对产生的烟气进行抑制。结果表明,设计实验条件下,最高温度维持在约100℃左右;烟气浓度呈线性增长,约为110×10^(-6)/min;实验中在水雾充足的情况下,水雾对烟气的压制导致烟气浓度降低速率约为1 000×10^(-6)/min。该实验对煤粉深位火灾及其他自热类粉末烟气的处置具有一定的参考意义。A small-scale experimental device was designed to monitor the temperature and smoke concentration by thermocouple and smoke sensor.A water mist spray system was fixed to suppress the produced smoke.Results showed that,under the experimental conditions,the highest temperature is about 100℃;the smoke concentration growth rate is approximate linearity,with growth rate of about 110×10^-6/min;sufficient mist under experimental condition afforded a significant suppress effect,with the concentration de?crease rate of 1 000×10^-6/min.This work can be a reference to dealing with the smoke produced by coal or other self-heating powders'smoldering.

关 键 词：煤粉 阴燃 深位火灾 水雾 烟气控制 

分 类 号：X932[环境科学与工程—安全科学] TQ536.1[化学工程—煤化学工程]