中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (11): 66-71.doi: 10.16265/j.cnki.issn1003-3033.2018.11.011

• 安全工程技术科学 • 上一篇    下一篇

超细水雾抑制甲烷爆炸的影响因素分析

杨克1 副教授, 邢志祥1 教授, 纪虹**2 讲师, 舒瑶1, 张平1, 左嘉琦1   

  1. 1 常州大学 环境与安全工程学院,江苏 常州 213164
    2 常州大学 石油工程学院,江苏 常州 213164
  • 收稿日期:2018-08-20 修回日期:2018-10-15 发布日期:2020-11-25
  • 通讯作者: ** 纪 虹(1986—),女,天津人,博士,讲师,主要从事油气储运安全、工业过程安全等方面的教学与研究。E-mail:jihong_academic@163.com。
  • 作者简介:杨 克 (1982—),男,山西陵川人,博士,副教授,主要从事消防安全、工业过程安全等方面的研究。E-mail:yangke728@163.com。
  • 基金资助:
    国家自然科学基金资助(51704041,51574046);江苏自然科学基金资助(BK20150269);国家安监总局安全生产重大事故防治关键技术科技项目(Jiangsu-0015-2017AQ)。

Analysis of factors influencing air-methane explosion suppression by ultrafine water mist

YANG Ke1, XING Zhixiang1, JI Hong2, SHU Yao1, ZHANG Ping1, ZUO Jiaqi1   

  1. 1 School of Environment and Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China
    2 School of Petroleum Engineering, Changzhou University, Changzhou Jiangsu 213164, China
  • Received:2018-08-20 Revised:2018-10-15 Published:2020-11-25

摘要: 为深入了解超细水雾对甲烷爆炸的抑制作用,搭建小尺寸半封闭可视化试验平台并开展试验,研究超细水雾喷施量、甲烷体积分数、通入甲烷位置和预混时间4个因素对甲烷与空气的混合物的爆炸的影响。结果表明:超细水雾能有效抑制甲烷爆炸,其中对9.5%甲烷的抑制作用最明显;随着超细水雾喷施量的增大,抑制作用增强;甲烷体积分数对甲烷爆炸最大爆炸超压ΔPmax有显著影响,超细水雾喷施量对甲烷爆炸ΔPmax有一定影响;超细水雾喷施量对甲烷爆炸火焰传播时间有显著影响,甲烷体积分数对甲烷爆炸火焰传播时间有一定影响。

关键词: 超细水雾, 甲烷, 抑制, 单因素, 正交试验, 压力, 火焰传播

Abstract: In order to know further about the inhibitory effect of ultrafine water mist on explosion of mixture of air and methane, a small size and semi-closed visual experimental platform was built, and experiments were carried out by using the platform. Four factors including the volume of the ultrafine water mist sprayed, the volume fraction of methane, the position where methane was pumped into and the premixed time were taken into consideration, and single factor experiments and the orthogonal experiments were carried out. The authors have come to the conclusion that ultrafine water mist can inhibit explosion of mixture of air and methane effectively, especially that of the mixture with 9.5% methane, there is a positive correlation between the volume of the ultrafine water mist and the inhibitory effect, that the volume fraction of methane has a remarkable influence on maximum explosion overpressure (ΔPmax) of methane explosion, and the volume of ultrafine water mist sprayed has a certain influence on it, and that the volume of ultrafine water mist has a remarkable influence on the spreading time of fire in methane explosion,and the volume fraction of methane has a certain influence on the spreading time.

Key words: ultra-fine water mist, methane, inhibition, single factor, orthogonal experiment, pressure, flame propagation

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