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燃油箱爆炸是航空安全的主要威胁之一。为了提高燃油箱的安全性,国际上权威的适航管理部门如美国联邦航空局(FAA)、欧洲航空安全局(EASA)以及中国民用航空局均制定了强制性的规章要求降低商用飞机燃油箱的可燃性。FAA已经论证了采用基于空气分离器的机载惰性气体生产系统(OBIGGS)进行燃油箱惰化是一种经济有效的方法,这种分离器采用了中空纤维膜气体分离技术。采用OBIGGS对燃油箱进行惰化在中国还是一个新兴课题,本文基于最新的适航规章要求,对惰化技术原理,对影响燃油箱惰化效果的关键因素如进气形式、进气流量等进行了研究,得到了这些关键因素的影响规律。
Fuel tank explosion is one of the major threats to aviation safety. In order to improve the safety of fuel tank, the authoritative regulatory agencies such as FAA, EASA and Civil Aviation Administration of China have made mandatory regulations to reduce the fuel consumption of commercial aircraft Flammability. The FAA has demonstrated that it is a cost-effective method to inert the fuel tank by using OBIGGS air separator based air separation technology using hollow fiber membrane gas separation. The inerting of the fuel tank by OBIGGS is still an emerging issue in China. Based on the latest airworthiness regulations, this paper describes the principle of inerting, the key factors that affect the inerting effect of the fuel tank, such as the form of intake air and the intake air flow Study, get the impact of these key factors.