军用飞机机载制氮系统研究

Study on the on-board inert gas generator system of military aircraft

为了有效地提高军机燃油系统的安全性,本文对机载制氮系统用于燃油箱惰化的技术进行了研究,并与飞机燃油箱其它防火抑爆技术进行了比较。采用富氮空气进行燃油冲洗是除去燃油中溶解氧的常用方法,并基于常规气体混合关系,质量守恒方程和Ostwald系数建立了燃油冲洗分析模型,该模型可以确定油箱内无油空间氧浓度随时间变化的规律。

In order to improve effectively the safety of aircraft fuel system, the inert technology of fuel tank applying on -board inert gas generator system （OBIGGS） was investigated and compared with other fire and explosion suppressant systems in this article. Fuel scrubbing by nitrogen enriched air is the common method of removing dissolved oxygen. An analytic model was established based on conventional gas mixture relationships, conservation equations, and the Ostwald coefficient for evaluating the quantity of dissolved gases versus time.