富氢燃气与液氧爆轰及补燃特性试验研究  

Experimental study on the detonation and spontaneous combustion characteristics of hydrogen-rich gas and liquid oxygen

作　　者：王朝晖[1] 孔维鹏 王仙[1] 田原[1] WANG Zhaohui;KONG Weipeng;WANG Xian;TIAN Yuan(Beijing Aerospace Propulsion Institute,Beijing 100076,China)

机构地区：[1]北京航天动力研究所

出　　处：《火箭推进》2019年第6期10-16,共7页Journal of Rocket Propulsion

摘　　要：为了研究富氢燃气与液氧之间的爆轰及补燃特性,以某发动机故障归零为依托,采用试验研究的方法,分析了非预混和预混两种情形下发生爆轰的可能性,探究了富氢燃气与液氧自动发生补燃的条件。通过分析试验现象和试验结果发现,在较低混合比和较低温度条件下富氢燃气与液氧不会自动发生补燃,火焰颜色呈无色透明状,白天不可见。管内预混状态下,富氢燃气和液氧可以发生爆轰,最大爆轰压比约34,且持续时间为毫秒级,在上游无预混物的情况下,爆轰波不会持续向上游传播。In order to study the detonation and spontaneous combustion characteristics of hydrogen-rich gas and liquid oxygen,based on the failure analysis of a liquid rocket engine,the possibility of detonation of hydrogen-rich gas and liquid oxygen under non-premixed and premixed conditions was analyzed by means of experimental study,and the conditions of spontaneous combustion of hydrogen-rich gas were explored.Through the analysis of experimental phenomena and experimental results,it is found that the hydrogen-rich gas and liquid oxygen do not react automatically at lower mixing ratios and lower temperature conditions,and the flame color is colorless and transparent,and invisible during the daytime.Under the premixed condition,hydrogen-rich gas and liquid oxygen can detonate,the maximum detonation pressure ratio is about 34,and the duration is milliseconds.However,in the case of no premixed material upstream,the detonation wave will not continue to propagate upstream.

关 键 词：氢氧发动机 富氢燃气 液氧 爆轰 补燃 

分 类 号：V434.13[航空宇航科学与技术—航空宇航推进理论与工程]