Docking test verification of high temperature gas ejector system
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摘要: 引射系统是化学激光器排气系统的核心组件。为提高排气系统引射效率并适应小型化、经济性等要求,提出一种采用燃气发生器产生高温燃气的引射气源方案,建立了"基于航空发动机单喷嘴燃烧室结构的燃气发生器+两级超声速引射器"组合的引射系统试验平台,开展了燃气发生器独立热试车,并实现了与引射器的对接试验。结果表明:燃气发生器点火可靠,运行稳定;在高温燃气的引射作用下,引射器启动迅速,工作平稳,各项性能指标优于设计值;引射燃气温度一定范围内的变化基本不影响引射器工作性能。相关研究结果可为引射系统方案设计及选取提供参考。Abstract: The ejector system is the key component of the chemical laser exhaust system. In order to improve the ejection efficiency of the exhaust system and meet requirements of miniaturization and economy, an ejection gas source scheme based on the gas generator to generate high temperature gas is proposed. A test stand of the ejection system composed of a gas generator based on structure of aero-engine mono-injector combustor and the two-stage supersonic ejector is established. An independent thermal test of the gas generator has been carried out and a docking test with the ejector has been successfully realized. Results show that ignition of the gas generator is reliable and the operation is stable; the ejector starts quickly and works smoothly under the action of high temperature gas injection, and performance indexes are better than design points:the ejector-gas temperature variation within a certain range does not affect the ejector performance. Research results expand the application of the gas generator, and at the same time, provide a powerful reference for the design and selection of ejector system solutions in this field.
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Key words:
- ejector system /
- chemical laser /
- gas generator /
- supersonic ejector /
- docking test
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表 1 燃气发生器设计参数
Table 1. Design parameters of gas generator
设计参数 数值 余气系数 3.0 总流量 26 kg/s 燃烧室压力(无量纲) 3.0~4.0 燃气总温 1100 K 出口温度偏差 ±50 K 表 2 引射器设计参数
Table 2. Design parameters of ejector
设计参数 数值 被引射气流总压 4.00 kPa 被引射流量 0.32 kg/s 引射马赫数 一级 5.0 二级 3.9 引射流量 一级 0.62 kg/s 二级 2.63 kg/s 引射压力(无量纲) 一级 2.41 二级 2.83 引射温度 一级 800 K 二级 900 K -
[1] 陈振华, 任泽斌, 赵波, 等.化学氧碘激光器尾气主动冷却技术试验[J].强激光与粒子束, 2014, 26(8):081013. doi: 10.11884/HPLPB201426.081013CHEN Z H, REN Z B, ZHAO B, et al. Experimental research on active cooling technique of exhaust gas from COIL[J]. High Power Laser and Particle Beams, 2014, 26(8):081013. doi: 10.11884/HPLPB201426.081013 [2] 李金雪, 王杰, 颜飞雪, 等. DF化学激光器扩压器流场仿真及优化[J].强激光与粒子束, 2018, 30(10):101002. doi: 10.11884/HPLPB201830.180113LI J X, WANG J, YAN F X, et al. Simulation and optimization of DF chemical lasers' diffuser[J]. High Power Laser and Particle Beams, 2018, 30(10):101002. doi: 10.11884/HPLPB201830.180113 [3] 符澄, 彭强, 刘卫红, 等.光腔与扩压器化学反应流场优化数值模拟[J].强激光与粒子束, 2015, 27(11):111009. doi: 10.11884/HPLPB201527.111009FU C, PENG Q, LIU W H, et al. Numerical simulation of chemical reaction flow optimization in cavity and diffuser[J]. High Power Laser and Particle Beams, 2015, 27(11):111009. doi: 10.11884/HPLPB201527.111009 [4] CONNAUGHTON J C. Application of a hydrazine gas generator to vacuum ejector pumping of a chemical laser[R]. AIAA-77-0892, 1977. [5] 邹建军, 周进, 徐万武, 等.大压缩比两级燃气引射系统参数匹配试验研究[J].强激光与粒子束, 2008, 20(10):1589-1592. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200810002ZOU J J, ZHOU J, XU W W, et al. Experimental investigation on parameter matching of high compression-ratio two-stage gas ejector system[J]. High Power Laser and Particle Beams, 2008, 20(10):1589-1592. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200810002 [6] 廖达雄.气体引射器原理及设计[M].北京:国防工业出版社, 2018:72-73. [7] 徐万武.高性能、大压缩比化学激光器压力恢复系统研究[D].长沙: 国防科学技术大学, 2003.XU W W. Study of high performance, high compression ratio pressure recovery system for chemical laser[D]. Changsha: National University of Defense Technology, 2003. [8] 徐万武, 邹建军, 王振国, 等超声速环型引射器启动特性试验研究[J].火箭推进, 2005, 31(6):7-11. doi: 10.3969/j.issn.1672-9374.2005.06.002XU W W, ZOU J J, WANG Z G, et al. Experimental investigation of the start performances of the supersonic annular ejector[J]. Journal of Rocket Propulsion, 2005, 31(6):7-11. doi: 10.3969/j.issn.1672-9374.2005.06.002 [9] 徐万武, 谭建国, 王振国.高空模拟试车台超声速引射器数值研究[J].固体火箭技术, 2003, 26(2):71-74. doi: 10.3969/j.issn.1006-2793.2003.02.020XU W W, TAN J G, WANG Z G. Numerical study on supersonic ejector of simulated altitude test stand[J]. Journal of Solid Rocket Technology, 2003, 26(2):71-74. doi: 10.3969/j.issn.1006-2793.2003.02.020 [10] 徐万武, 谭建国, 王振国.二次流对超声速环型空气引射器真空度的影响[J].国防科技大学学报, 2003, 25(3):6-9. doi: 10.3969/j.issn.1001-2486.2003.03.002XU W W, TAN J G, WANG Z G. The effects of second-flow on the vacuum-degree of annular supersonic air ejector[J]. Journal of National University of Defense Technology, 2003, 25(3):6-9. doi: 10.3969/j.issn.1001-2486.2003.03.002 [11] 陈志强, 廖达雄, 刘宗政, 等.过氧化氢加酒精补燃气体发生器实验研究[J].强激光与粒子束, 2007, 19(9):1409-1412. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200709001CHEN Z Q, LIAO D X, LIU Z Z, et al. Experimental studies of gas generator based on hydrogen peroxide and hypergolic ethanol[J]. High Power Laser and Particle Beams, 2007, 19(9):1409-1412. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200709001 [12] 刘盛田, 胡兴伟, 柳琪, 等.一氧化二氮/乙醇燃气发生器试验研究[J].舰船科学与技术, 2008, 30(z6):223-226. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jckxjs2008z2012LIU S T, HU X W, LIU Q, et al. The experimental studies of gas generator based on nitrous oxide and ethanol[J]. Ship Science and Technology, 2008, 30(z6):223-226. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=jckxjs2008z2012 [13] 刘盛田, 胡兴伟, 巴俊州, 等. N2O/C2H5OH单喷嘴燃气发生器研究[J].舰船防化, 2007(2):30-34. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK200702210228LIU S T, HU X W, BA J Z, et al. The Study of N2O/C2H5OH mono-injector gas generator[J]. Chemical Defence on Ships, 2007(2):30-34. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK200702210228 [14] 冯军红, 沈赤兵, 赵芳.液氧与气氧对空气加热器燃烧流场的影响分析[J].国防科技大学学报, 2012, 34(4):43-48. doi: 10.3969/j.issn.1001-2486.2012.04.009FENG J H, SHEN C B, ZHAO F. Analysis of liquid and gaseous oxygen influence on the combustion flow field of air heater[J]. Journal of National University of Defense Technology, 2012, 34(4):43-48. doi: 10.3969/j.issn.1001-2486.2012.04.009 [15] 罗智锋, 刘重阳, 冯大强, 等.一种以乙醇为燃料的单管燃烧室燃气发生器: 201420794555.3. 2015-08-05.LUO Z F, LIU C Y, FENG D Q, et al. A single tube combustor gas generator fueled by ethanol: 201420794555.3. 2015-08-05. [16] 廖达雄, 任泽斌, 余永生, 等.等压混合引射器设计与实验研究[J].强激光与粒子束, 2006, 18(5):728-732. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200605007LIAO D X, REN Z B, YU Y S, et al. Design and experiment of constant pressure mixing ejector[J]. High Power Laser and Particle Beams, 2006, 18(5):728-732. http://d.old.wanfangdata.com.cn/Periodical/qjgylzs200605007