一种可起到值班火焰作用的介质阻挡放电装置-中国电机工程学报.PDF

第32 卷 第32 期 中 国 电 机 工 程 学 报 Vol.32 No.32 Nov.15, 2012 2012 年11 月15 日 Proceedings of the CSEE ©2012 Chin.Soc.for Elec.Eng. 89 文章编号：0258-8013 (2012) 32-0089-06 中图分类号：O 53 ；TM 8 ；TK 5 文献标志码：A 学科分类号：470·20 一种可起到值班火焰作用的介质阻挡放电装置 李钢，徐燕骥，邵卫卫，刘艳，胡宏斌，杨凌元 ( 中国科学院工程热物理研究所，北京市 海淀区 100190) Dielectric Barrier Discharge Devices Acting as Pilot Flame LI Gang, XU Yanji, SHAO Weiwei, LIU Yan, HU Hongbin, YANG Lingyuan (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Haidian District, Beijing 100190, China) ABSTRACT: The idea of using dielectric barrier discharge 位置靠近，且反应更趋紧凑，这初步验证了该装置可以稳定 plasma device to act as pilot flame was put forward for 燃烧、防止熄火，表明通过介质阻挡放电等离子体装置来实 combustion stability enhancement. The plasma was generated 现值班火焰的设计思路可行。 by the plasma actuators placed on the expansion section of the 关键词：等离子体；介质阻挡放电；值班火焰；旋流扩散燃 combustor. The plasma actuators were switched on all the time 烧；平面激光诱导荧光 in combustion. The plasma acted as the pilot flame can enhance the combustion stability and prevent the blow off of 0 引言 combustion. The advantages of the plasma pilot flame device included simple structure, low power consumption, on line 值班火焰(pilot flame)的形成有多种方式，在工 parameters adjustment and free influence of combustor design. 程上普遍使用的方法是通过专门设计的值班喷嘴 Effects of the plasma actuation on lift flame in the swirl 来实现，如在西门子公司设计的干式低NOx 混合型 combustor were investigated. In the experiment the flame 燃烧器上，供给在燃烧器中心部位建立起的值班火 structure was observed by the planar laser induced