东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (4): 493-496.DOI: -

• 论著 • 上一篇    下一篇

哈特曼装置上粉尘浓度的测量

李新光;董洪光;S.Radandt;   

  1. 东北大学流程工业综合自动化教育部重点实验室;东北大学流程工业综合自动化教育部重点实验室;应用系统安全及劳动医学研究协会 辽宁沈阳110004;辽宁沈阳110004;曼海姆68165
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-04-15 发布日期:2013-06-24
  • 通讯作者: Li, X.-G.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60374052)

Measurement of dust concentration in Hartmann Bomb

Li, Xin-Guang (1); Dong, Hong-Guang (1); Radandt, S. (2)   

  1. (1) Key Laboratory of National Education Ministry for Integrated Automation of Process Industry, Northeastern University, Shenyang 110004, China; (2) Research Society for Applied System Safety and Labour Medicine, Mannheim 68165, Germany
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-04-15 Published:2013-06-24
  • Contact: Li, X.-G.
  • About author:-
  • Supported by:
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摘要： 粉尘浓度和湍流速度对粉尘爆炸猛烈程度和粉尘云最小着火能的测试有很大影响.针对1.2 L哈特曼装置上的粉尘浓度进行了测量研究,并对测量数据进行了分析讨论,得到了1.2 L哈特曼管上不同位置高度的粉尘浓度随时间的变化曲线.粉尘浓度随哈特曼管高度位置分布很不均匀.对于哈特曼管电极位置高度,当点火延迟时间170 ms、计算浓度为500 g/m3时,其粉尘测量浓度近似等于计算浓度;当计算浓度低于500 g/m3时,其测量浓度高于计算浓度.当计算浓度大于500 g/m3时,测量浓度低于计算浓度.哈特曼管上粉尘浓度随高度分布的获得,为最小着火能在不同装置上的测试比较提供了数据,为粉尘爆炸数学模型的检验提供了...

关键词: 粉尘爆炸, 粉尘浓度测量, 浓度标定, 哈特曼管, 最小着火能

Abstract: The dust concentration and velocity of turbulence have significant effects on the level of explosion and measurement of the minimum ignition energy of dust clouds. The research conducted a measurement study on the dust concentration in a 1.2L Hartmann Bomb, analyzed the measurement data, and finally obtained the time-dependent curves of dust concentration at different heights in a 1.2L Hartmann Bomb. The dust concentration along heights in the Hartmann Bomb distributes ununiformly. For a given position height of the electrode in the Hartmann Bomb and the ignition delay time of 170 ms, when the calculated concentration is 500 g/m, the measured concentration equates approximately to the calculated concentration; when the calculated concentration is lower than 500 g/m3, the measured concentration is higher than the calculated concentration, and vice versa. The obtaining of the distribution of dust concentration along the heights in the Hartmann Bomb provides both the data for the comparison of the measurement and test of the minimum ignition energy at different equipment and the supporting evidences for the verification of the mathematical model of dust explosion.

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