飞机氧气系统着火案例分析及安全性设计要求  

Analysis of Aircraft Oxygen System Fire Accident and Safety Requirement

作　　者：封文春 Feng Wenchun(AVlC The First Aircraft Institute,Xi＇an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2018年第9期58-63,共6页Aeronautical Science & Technology

摘　　要：飞机氧气系统曾多次出现着火事故。根据公开的文献资料和网络信息,统计分析了50例飞机氧气系统着火事故。分析结果表明,充氧、打开或关闭阀门等动态过程是最易着火阶段,氧气瓶及阀体组件、调节器、关断阀等是最易着火部位。开展系统动态过程和关键部件氧气危险及着火风险分析是减小或避免系统着火的重要措施。对氧气系统着火因素进行了简要分析,列举了一些常见的因素。材料选择及氧气兼容性分析是氧气系统安全性设计的关键,介绍了氧气系统材料尤其是非金属材料选择一般准则和氧气兼容性分析方法,为氧气系统安全性设计提供参考。Fire accident have occurred many times on the aircraft oxygen system. According to the document and internet information, the total 50 fire accidents of aircraft oxygen system was counted and analyzed. The result show that the dynamic condition of filling oxygen, open or close valve is the phase which fires is easy occurred. Oxygen cylinder assembly, regulator, shut off valve is the part which fires is easy occurred. Dynamic process analysis and oxygen hazard and fire risk analysis of critical part is an important method to reduce or avoid fire occurred at the oxygen system. Ignition mechanisms of oxygen system was analyzed and some general ignition mechanisms was listed. Material selection and oxygen compatibility was an critical method for system safety. An selection general rules of material used in oxygen was described. The method of oxygen compatibility was also present which can be as a reference for oxygen system safety design.

关 键 词：飞机氧气系统 着火事故 着火因素 氧气兼容性 氧气危险及着火风险分析 

分 类 号：V245.31[航空宇航科学与技术—飞行器设计]