HAN基绿色推进剂点火技术研究进展

Research progress on ignition of HAN-based green propellant

针对HAN基绿色推进剂普遍存在点火困难的问题,总结了国内外HAN基绿色推进剂点火技术的研究和应用情况。HAN基液体推进剂的点火方式主要包括催化分解点火、电火花点火、无弧点火、电解点火和激光点火。HAN基凝胶推进剂仍采用传统烟火药方式,难以实现点火。HAN基固体推进剂采用电极电解点火方式,在电压的控制下实现了点火、燃烧和熄火可控。分析认为,采用电解方式能够显著提高HAN推进剂的点火效率,是HAN基推进剂点火技术的发展方向。

The recent research and application of the ignition technology of HAN-based green propellants at home and abroad is reviewed to solve the difficulty commonly existing in ignition of HAN-based green propellants. Several ignition methods of the HAN-based liquid propellants includes catalytic decomposition ignition method, electric spark ignition method, electrolytic ignition method and laser ignition method. The HAN-based jel propellant still uses conventional ignition methods, which is difficult to achieve ignition. The electrolytic ignition method can achieve ignition, combustion and flameout control of a novel HAN-based solid propellant under the condition of voltage control. The analysis results indicate that the electrolytic ignition method can improve the ignition effectiveness of HAN-based propellant obviously, and is the development direction of HAN-based propellants.