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阐述了等离子体旋流器的设计思路,并通过实验验证利用等离子体旋流器调控旋流扩散火焰的可行性.等离子体旋流器由多对交错布置在燃烧器扩张段两侧的电极组成,通过电离空气产生活性自由基,同时能够促进空气旋流,可以起到增强燃烧稳定性作用.实验中利用平面激光诱导荧光测试系统观测到随着等离子激励功率的增强,火焰反应区逐步变宽,这表明等离子体旋流器起到了调控旋流扩散火焰的作用,等离子体旋流器的设计思路可行.
The design idea of the plasma cyclone is expounded and the feasibility of using the plasma cyclone to control the swirling diffusion flame is experimentally verified.The plasma cyclone consists of a plurality of pairs of electrodes alternately arranged on both sides of the burner expansion section , The active free radicals are generated by ionized air and the air swirling can be promoted at the same time, which can enhance the combustion stability.In the experiment, the planar laser-induced fluorescence test system was used to observe that as the plasma excitation power increases, the flame reaction zone gradually widens , Which indicates that the plasma cyclone plays the role of regulating the swirling diffusion flame, and the design idea of the plasma cyclone is feasible.