溴代三氟丙烯对电池火灾的灭火效果实验研究  

Experimental study on extinguishing efficiency of 2-BTP on battery fires

作　　者：徐会升 丛晓民[1] 赵林双 王曦 XU Hui-sheng;CONG Xiao-min;ZHAO Lin-shuang;WANG Xi(College of Mechanical and Electrical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学机电学院,北京100081

出　　处：《消防科学与技术》2022年第7期873-876,共4页Fire Science and Technology

基　　金：国家重点研发计划(2018YFB0104000)。

摘　　要：搭建了一套灭火实验平台,以额定容量为75 Ah的三元软包锂离子电池单体为研究对象,采用恒定功率为1000 W的铝铸加热板诱发电池热失控,分析了电池在50%SOC下的燃烧特性,研究了溴代三氟丙烯(2-BTP)对电池火灾的灭火降温效果,并在相同工况下与水、七氟丙烷、五氟乙烷进行对比,分析了不同灭火剂的灭火时间、最高温度和复燃情况。结果表明,实验条件下,溴代三氟丙烯最快在13 s内扑灭了明火,不仅灭火速度最快,降温效果最好,还能有效抑制锂离子电池复燃。A set of fire extinguishing experimental platform was set up,the rated capacity of 75 Ah ternary flexible lithium-ion battery was taken as the research object.A constant power of 1000 W aluminum casting heating plate was used to induce thermal loss of the battery.The combustion characteristics of the battery under 50%SOC were analyzed,and the effect of 2-BTP on battery fire suppression and cooling was studied.Compared with water,FM-200 and HFC-125 under equal working conditions,the fire extinguishing time,maximum temperature and re-ignition of different extinguishing agents were analyzed.The experimental results show that under the set conditions,2-BTP is the fastest to extinguish the flame within 13 s.2-BTP not only has the fastest fire-extinguishing speed and the best cooling effect,but also can effectively inhibit the re-ignition of lithium ion battery.

关 键 词：溴代三氟丙烯 锂离子电池 燃烧特性 灭火效果 

分 类 号：X913.4[环境科学与工程—安全科学] TM912[电气工程—电力电子与电力传动]