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 ›› 2020, Vol. 39 ›› Issue (10): 1349-1353.

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环境风诱发中尺度方形油池火旋风试验研究

官宝宁，张光辉，梁勇，姜伟   

  1. 海军工程大学舰船综合试验训练基地，湖北武汉430033
  • 出版日期:2020-10-15 发布日期:2020-10-15
  • 通讯作者: 张光辉，男，海军工程大学舰船综合试验训练基地，博士。
  • 作者简介:官宝宁（1984-），男，海军工程大学舰船综合试验训练基地海战场生存教练室助教，硕士，主要从事舰船安全技术与工程方面的研究，湖北省武汉市硚口区解放大道717 号，430033。

Fire whirls experiment research induced by environment wind in middle scale square oil pool

GUAN Bao-ning, ZHANG Guang-hui,LIANG Yong, JIANG Wei   

  1. Ship Experimental and Training Base, Naval University of Engineering, Hubei Wuhan 430033, China
  • Online:2020-10-15 Published:2020-10-15

摘要： 为了获取火旋风形成的动态过程和特性参数规律，对比分析与普通火灾的危险性，以风洞模拟环境主风场为诱发条件，设计长6 m、宽6 m 的中尺度柴油火旋风试验平台，采用热线风速仪、辐射热流计、DV 摄像仪和自制热释放速率测量装置采集试验数据。结果表明：火旋风形成过程分为普通油池火、间歇性火旋风、局部火旋风和扬沸4 个阶段；火旋风形成后，稳定火旋风阶段油池的最大质量损失速率是同尺度普通柴油池火的2.44 倍，平均火焰高度是相应普通油池火的1.49 倍；火旋风羽流温度随着火旋风占空比的提升持续增大，竖直方向平均辐射热通量是相应普通柴油池火的1.89 倍。

关键词: 环境风, 中尺度油池火, 火旋风, 质量损失速率, 火焰高度, 羽流温度

Abstract: To obtain the dynamic process and characteristic parameters' law of fire whirls formation, and do a comparative analysis with ordinary fire's risk, a new experiment platform was designed, using wind tunnel to generate environment wind,and the square oil pool length was 6 m and width is 6 m, using hot wire anemometers, DV and heat release rate instrument to collect data. Experiment results verified that the fire whirls formation process includes four stages as ordinary oil fire, intermittent fire whirls, steady fire whirls and boilover. At stable stage,the fire whirls' maximum quality loss rate is 2.44 times that of ordinary fire, the average flame height is 1.49 times; The average radiation in vertical direction is 1.89 times, and the flame temperature will increase with the space rate occupied by fire whirls.

Key words: entertainment wind, middle scale oil fire, fire whirls, mass loss rate, flame height, fire plume temperature