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采用平面火焰燃烧器实现了一种甲烷预混倒置焰锥抬升火焰,在没有发生放电击穿的条件下着重分析了高频高压电场对火焰的影响。实验观测发现倒置焰锥火焰的抬升高度受高频高压电场的增强而降低,并且焰锥夹角随电压的增加而减小。对照实验现象分析,结果表明由于高频高压电场带来的离子风效应较小,高频高压电场对火焰面中电子或离子参与的化学反应碰撞的增强可能是最主要的原因。
A planar flame burner was used to realize a kind of methane premixed inverted cone flame lifting flame. The influence of high frequency and high voltage electric field on the flame was analyzed emphatically under the condition of no breakdown. Experimental observations show that the height of the inverted flames flame is reduced by the increase of the high-frequency and high-pressure electric field, and the angle of the flame cone decreases with the increase of the voltage. The comparison of the experimental results shows that due to the small ion wind effect caused by the high-frequency and high-voltage electric field, the enhancement of the chemical reaction of electrons or ions in the flame surface caused by the high-frequency and high-voltage electric field may be the main reason.