燃油结焦影响因素及抑制方法综述  

Summarization on Influence Factors and Suppression Methods of Fuel Coking

作　　者：王晨臣 彭孝天 王苏明 刘卫华[1] 冯诗愚[1] WANG Chen-chen;PENG Xiao-tian;WANG Su-ming;LIU Wei-hua;FENG Shi-yu(College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China)

机构地区：[1]南京航空航天大学航空宇航学院,南京210016

出　　处：《航空发动机》2018年第2期64-69,共6页Aeroengine

基　　金：航空科学基金(20132852040);中央高校基本科研业务费专项资金;江苏高校优势学科建设工程基金资助

摘　　要：燃油温度升高会导致燃油结焦,而燃油结焦对飞行器会带来极大危害,因而抑制燃油结焦是亟待解决的问题。在实际应用中,针对不同的结焦机理,可采取不同的抑制方法。介绍了燃油结焦的机理,综述了国内外关于航空煤油特性的影响因素的相关试验情况。结果表明:温度对燃油结焦影响最大,由于温度的不同,结焦机理也会发生变化;而压力、流动方式对结焦的影响很小。故通常采用溶解氧含量、材料表面处理及使用添加剂来抑制结焦。The rise of fuel temperature will lead to fuel coking,resulting in great harm to aircrafts.Thus,the problem of fuel coking suppression should be solved urgently.Various suppression methods can be adopted for different coking mechanisms in practical application.The mechanism of fuel coking was introduced,and the situation of relevant experiments on the influencing factors on aviation kerosene characteristics at home and abroad was summarized.The results show that the temperature has the greatest effect on fuel coking,and the coking mechanism changes due to different temperatures.The pressure and flow pattern have little effect on fuel coking.Therefore,the fuel coking is usually depressed by the dissolved oxygen content,the surface treatment of materials and the use of additives.

关 键 词：燃油结焦 结焦机理 影响因素 抑制 溶解氧含量 

分 类 号：V312.1[航空宇航科学与技术—航空宇航推进理论与工程]