液氧煤油掺混及燃爆特性试验研究
Experimental Study on Mixing and Explosive Properties of Liquid Oxygen and Kerosene
喻闯闯 1晏政 2朱良平 2罗天培 1张家仙1
作者信息
- 1. 北京航天试验技术研究所,北京,100074;北京市航天试验技术与装备工程技术研究中心,北京,100074
- 2. 西昌卫星发射中心,西昌,615000
- 折叠
摘要
为研究液氧煤油掺混及燃爆特性,建立部分受限空间试验系统以模拟发射场应用场景,开展液氧煤油掺混及燃爆特性试验.试验结果表明,液氧、煤油同时泄出并掺混时,煤油、氧气浓度均存在一个先上升后下降的过程;当煤油温度为65℃、点火激励为5.9J时,即使是发生液氧泄漏,液面上方布置的测点处仍未达到燃爆条件;煤油温度提升至80℃时,液氧持续泄出仅约20s时成功起爆,点火时刻煤油蒸气浓度1.31％,氧气浓度40.05％,氮气浓度58.64％,煤油/氧气浓度比值为0.033.
Abstract
In order to study the mixing and explosion characteristics of liquid oxygen and kerosene,a partial confined space test system is established to simulate the application scenarios of the launch site and the tests are carried out. It is demonstrated that when liquid oxygen and kerosene are discharged and mixed at the same time,the concentration of kerosene and oxygen increases at first and then decreases. When kerosene temperature is 65℃ and ignition excitation is 5.9J,even if liquid oxygen leaks,the ignition and explosion condition are still not reached at the measuring points arranged above the liquid level. In the test when the kerosene temperature is raised to 80℃,explosion occurs when liquid oxygen is released only for about 20 seconds. At ignition time,the concentration of kerosene,oxygen,and nitrogen are 1.31％,40.05％ and 58.64％ respectively,and the ratio of kerosene concentration to oxygen concentration is 0.033.
关键词
液氧煤油/掺混/燃爆特性/试验/安全Key words
liquid oxygen and kerosene/mixing/explosive properties/test/safety引用本文复制引用
出版年
2024
NETL
NSTL
万方数据