基于PyroSim的仓储锂离子电池火灾数值模拟研究  

Numerical simulation analysis of storage lithium ion battery fire based on PyroSim

作　　者：谢瑞卿 吴洁 郭艾雯 邢志祥 XIE Ruiqing;WU Jie;GUO Aiwen;XING Zhixiang(School of Environmental and Safety Engineering,Changzhou University,Changzhou Jiangsu 213164,China)

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164

出　　处：《工业安全与环保》2023年第8期18-23,共6页Industrial Safety and Environmental Protection

基　　金：应急管理部消防救援局科技计划项目(2020XFCX33);工业与信息化部化学原料药环保安全技术服务平台项目(2020-0107-3-1)。

摘　　要：采用PyroSim软件模拟仓储锂离子电池热失控引起的火灾场景,分析了火灾点火源周围的温度变化、热释放速率、能见度变化和CO体积分数变化情况,并设置喷淋系统对其进行灭火效果的数值模拟研究。结果表明:仓储锂离子电池发生火灾后,在35 s时烟气蔓延至整个仓库,火场的最高温度可达1625℃,热释放速率最高可达81607 k W/s,CO体积分数最大可达1.799Χ10^(-3)。设置喷淋装置灭火后,锂离子电池燃烧所产生的烟气明显减少,点火源周围的温度也得到了控制,热释放速率最高为6.5 kW/s,达到灭火和防止火灾蔓延的目的,有效地抑制锂离子电池储存仓库火灾的发生。In this study,PyroSim software was used to simulate the fire scene caused by thermal runaway of storage lithium ion battery.The temperature change,heat release rate,visibility change and CO concentration change around the fire ignition source were analyzed,and the sprinkler system was set to conduct numerical simulation study on its fire extinguishing effect.The results show that the smoke spreads to the whole warehouse at 35 s after the fire of storage lithium ion battery.The highest temperature ofthe fire can reach 1625°C,the highest heat release rate can reach 81607 kW/s,and the maximum CO concentration can reach 1.799×10^(-3).After setting sprinklers to extinguish the fire,the smoke pro-duced by burning lithium-ion batteries was significantly reduced,the temperature around the ignition source was con-trolled,and the maximum heat release rate was 6.5 kW/s,which achieved the purpose of extinguishing the fire and pre-venting the spread of fire,and effectively suppressed the occurrence of lithium-ion battery storage warehouse fire.

关 键 词：仓储 锂离子电池 火灾模型 数值模拟 

分 类 号：X932[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]