哈龙替代灭火剂抑制空运锂离子电池试验研究

发布时间：2018-04-22 22:06

本文选题：锂离子电池 + 热失控特点　；参考：《消防科学与技术》2017年09期

【摘要】：为解决机载哈龙灭火剂不能长时间抑制锂离子电池热失控问题,结合锂离子电池热失控特点与现有灭火剂适用性,筛选出细水雾灭火剂与超细干粉灭火剂为研究对象,通过自主设计试验平台开展细水雾灭火剂与超细干粉灭火剂在相同条件下抑制30%和100%电量锂离子电池热失控对比试验,通过锂离子电池热失控后温度峰值、降温反应时间,考察细水雾灭火剂和超细干粉灭火剂抑制锂离子电池热失控灭火能力和速率。结果表明:细水雾灭火剂抑制锂离子电池热失控比超细干粉抑制能力提升140%左右,灭火速率提升了300%左右,据此提出在抑制锂离子电池热失控方面细水雾灭火剂较超细干粉灭火剂存在明显优势,是取代哈龙灭火剂的选择之一。
[Abstract]:In order to solve the problem that airborne halon fire extinguishing agent can not restrain the heat runaway of lithium ion battery for a long time, according to the characteristics of heat runaway of lithium ion battery and the applicability of existing extinguishing agent, the fine water mist extinguishing agent and superfine dry powder extinguishing agent are selected as the research object. The contrast experiment of water mist extinguishing agent and superfine dry powder extinguishing agent was carried out on the test platform designed by ourselves to suppress the heat runaway of lithium-ion battery with 30% and 100% electric quantity under the same conditions. The temperature peak after heat runaway of lithium-ion battery and the reaction time of cooling down were adopted. The fire extinguishing ability and rate of water mist extinguishing agent and superfine dry powder fire extinguishing agent against thermal runaway of lithium ion battery were investigated. The results show that the inhibition ability of water mist extinguishing agent on heat loss of lithium-ion battery is about 140% higher than that of superfine dry powder, and the fire extinguishing rate is about 300% higher than that of superfine dry powder. It is suggested that water mist extinguishing agent has obvious advantages over superfine dry powder fire extinguishing agent in restraining heat runaway of lithium-ion battery and is one of the alternatives to halon extinguishing agent.
【作者单位】：中国民航大学经济管理学院;
【基金】：国家自然科学基金委员会与中国民用航空局联合资助项目(U1333123) 中央高校基本科研业务费中国民航大学专项资助(3122017050)
【分类号】：TM912

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