主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (5): 610-612.

• • 上一篇    下一篇

通风条件下储能集装箱磷酸铁锂电池热失控气体扩散规律

吴泳1，李丽娜1，王志刚1，罗剑飞1，孙绪坤2   

  1. 1. 南瑞集团有限公司(国网电力科学研究院有限公司)，江苏南京210003；2. 中国矿业大学（北京）应急管理与安全工程学院，北京100083
  • 出版日期:2021-05-15 发布日期:2021-05-15
  • 作者简介:吴泳（1973-），男，山东潍坊人，南瑞集团有限公司工程师，博士，主要从事储能消防技术研究，北京市海淀区东北旺西路8 号中关村软件园29 号楼3 层B315，210003。
  • 基金资助:
    南瑞集团科技项目"预制舱式储能系统火灾防控技术研究"(5246MK190004)

Influence of ventilation on gas diffusion law of lithium iron phosphate battery fire in energy storage container<

WU Yong1, LI Li-na1, WANG Zhi-gang1, LUO Jian-fei1, SUN Xu-kun2   

  1. 1. NARI Group Co., Ltd. (State Grid Electric Power Research Institute Co., Ltd.), Jiangsu Nanjing 210003, China; 2. China University of Mining and Technology (Beijing), College of Emergency Management and Safety Engineering, Beijing 100083, China
  • Online:2021-05-15 Published:2021-05-15

摘要： 储能电站安全和消防问题备受关注，采用磷酸铁锂电池热失控特征气体作为探测预警的方式已经广泛应用于储能电站。气体在储能集装箱部的扩散规律直接影响探测预警的准确性，对通风影响储能集装箱磷酸铁锂电池热失控特征气体扩散规律尚缺乏深入的认识。为了探究通风对储能集装箱特征气体扩散的影响，首先采用锂离子电池热失控实验平台探究了109 Ah 磷酸铁锂电池发生热失控特征气体的种类及组分，然后采用数值分析技术对储能电站气体扩散进行全尺寸模拟，通过改变通风速率、通风尺寸、通风位置讨论特征气体的扩散规律，给出纵向特征气体的变化规律，为现实气体探测预警提供理论依据。

关键词: 储能电站消防, 火灾数值模拟, 磷酸铁锂电池

Abstract: In recent years, with the accelerating commercialization process of energy storage power station, the safety and fire protection problems of energy storage power station have attracted much attention. Lithium iron phosphate battery thermal runaway characteristic gas as a detection and early warning method has been widely used in energy storage power station. The diffusion law of gas in energy storage container directly affects the accuracy of detection and early warning. However, the influence of ventilation on the thermal runaway characteristic gas diffusion law of LiFePO4 battery in energy storage container is not well understood. In order to explore the influence of ventilation on the characteristic gas diffusion of energy storage container, the types and components of characteristic gas in 109 Ah lithium iron phosphate battery under thermal runaway were studied by using lithium- ion battery thermal runaway experimental platform, and then the full-scale simulation of gas diffusion in energy storage power station was carried out by using numerical analysis technology. The characteristics were discussed by changing the ventilation rate, ventilation size and ventilation position. The diffusion law of characteristic gas and the change law of longitudinal characteristic gas are given, which provides a certain theoretical basis for real gas detection and early warning.

Key words: Energy storage power station fire protection, fire numerical simulation, lithium iron phosphate battery