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1.华北科技学院 安全工程学院,北京 101601
2.卑尔根大学,挪威 卑尔根 5020
[ "胡洋 (1979-),男,辽宁沈阳人,博士,副教授,2011年于北京理工大学获得博士学位,主要从事预混气体爆燃转爆轰、高速气体测量及爆炸流场光学显示等方面的研究。E-mail:28770007@qq.com" ]
尹尚先 (1964-),男,山西朔州人,博士,教授,2002年于中国矿业大学(北京)获得博士学位,现为华北科技学院安全工程学院院长,是中央直接掌握联系的高级专家,教育部创新团队(培育)带头人,主要从事矿山灾害防治等方面的研究。E-mail: yinshx03@qq.com YIN Shang-xian, E-mail: yinshx03@qq.com
收稿日期:2018-10-03,
录用日期:2018-11-5,
纸质出版日期:2019-05-15
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胡洋, 尹尚先, ARNTZENJ. Bjørn, 等. 矿井瓦斯/空气预混气体爆燃的激光纹影测试系统设计[J]. 光学 精密工程, 2019,27(5):1045-1051.
Yang HU, Shang-xian YIN, J. Bjørn ARNTZEN, et al. Design of laser schlieren test system for mine gas/air premixed gas deflagration[J]. Optics and precision engineering, 2019, 27(5): 1045-1051.
胡洋, 尹尚先, ARNTZENJ. Bjørn, 等. 矿井瓦斯/空气预混气体爆燃的激光纹影测试系统设计[J]. 光学 精密工程, 2019,27(5):1045-1051. DOI: 10.3788/OPE.20192705.1045.
Yang HU, Shang-xian YIN, J. Bjørn ARNTZEN, et al. Design of laser schlieren test system for mine gas/air premixed gas deflagration[J]. Optics and precision engineering, 2019, 27(5): 1045-1051. DOI: 10.3788/OPE.20192705.1045.
为了准确地获取矿井瓦斯/空气预混气体爆燃流场的内部微观结构信息,能够从基元反应层面认识爆燃流场的演化过程以及惰性介质阻燃剂抑制作用的机理,在已经建成的中尺度激波管道上继续搭建高速激光纹影测试系统,结合实验室几何空间约束条件,提出纹影测试系统“Z”字型光路的设计方案。以激光纹影系统代替传统的压力火焰测试系统,将爆燃流场的研究重心从宏观的单一点源信息向微观的多重结构信息转化。研究表明,在60,100,125,212 ms时火焰阵面的化学反应变强,伴随着产生了冲击波,在75 ms左右火焰发生断裂,该点处的压力下降,325 ms火焰阵面扫过该测点以后,压力迅速下降。该结果为寻求预混气体爆燃高速摄影、压力火焰速度测试手段之外的方法提供了新的研究思路。
To obtain accurate internal micro-structure information related to mine gas/air premixed gas deflagration flow fields
the evolutionary process of deflagration flow fields and the mechanism involved in inert medium flame retardant inhibition from the perspective of elementary reactions must be understood. A high-speed laser schlieren measurement system is constructed for the mesoscale shock pipeline. Due to the geometric space constraints in the laboratory
a design scheme of a Z-shaped optical path for the schlieren measurement system is also proposed. The laser schlieren system replaces the traditional pressure flame measurement system
and the research focus of deflagration flow fields is shifted from macroscopic single-source information to microscopic multi-structure information. The results show that the chemical reaction of the flame front becomes stronger at 60
100
125
and 212 ms when accompanied by a shock wave. The flame breaks at approximately 75 ms
and the pressure decreases at this point. After a 325-ms flame front sweeps over the measuring point
the pressure decreases rapidly. The results provide a basis for new research into methods other than high-speed photography for premixed gas deflagration and pressure flame velocity measurements.
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