一种绿色无毒单组元微推力器性能试验研究  

Experimental Investigation on Performance of a Green,Non-Toxic,Monopropellant Micro-Thruster

作　　者：付拓取[1,2] 刘旭辉 张伟[1,2] 沈岩 王平[1,2] 陈君 陈健[1,2] 刘瀛龙 杨蕊[1,2] FU Tuo-qu;LIU Xu-hui;ZHANG Wei;SHEN Yan;WANG Ping;CHEN Jun;CHEN Jian;LIU Ying-long;YANG Rui(Advanced Space Propulsion Laboratory,Beijing Institute of Control Engineering,Beijing 100190,China;Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology,Beijing 100190,China)

机构地区：[1]北京控制工程研究所先进空间推进技术实验室,北京100190 [2]北京市高效能及绿色宇航推进工程技术研究中心,北京100190

出　　处：《推进技术》2020年第1期85-91,共7页Journal of Propulsion Technology

摘　　要：为了获得研制的一种基于绿色无毒ADN基推进剂的单组元0.2N微推力器性能,对其进行了试验研究。通过真空加热试验,获得微推力器的温启动加热性能;通过高空模拟热试车试验,获得微推力器稳态和脉冲工况下,微推力器的推力、温度分布等参数,考察微推力器的启动性能、稳态、脉冲工作稳定性,研究微推力器工作过程中推力室、前室和电磁阀温度变化规律,通过1000s长稳态点火试验,验证了微推力器长稳态工作的稳定性。结果表明,3W加热功率实现了微推力器200℃的温启动要求,微推力器完成了系列稳态、脉冲考核程序,工作过程中微推力器推力稳定,启动响应快,推力室温度最高达到1016℃。试验证明了研制的0.2N微推力器在完成结构微型化的同时,实现了微流量下推力器稳定工作,微推力器额定真空比冲大于200s,性能优良,200mN推力量级微推力器的成功研制,将进一步拓展ADN绿色无毒推进在微推进领域的应用。To investigate the performance of a green,non-toxic,ADN-based 0.2 N monopropellant microthruster,experiments were conducted.The heating performance to reach ignition temperature of the micro-thruster was obtained by vacuum heating test.Through the hot fire test in high altitude simulated vacuum chamber,the vacuum thrust,temperature distribution of the micro-thruster under steady-fire and pulse-fire were obtained.The starting performance,stability of steady state and pulse of the micro-thruster were investigated.The temperature variation of the thrust chamber,front catalytic bed and solenoid valve in the thruster operation process were studied.Stability of long steady state firing of the micro-thruster was verified by the 1000 s long steady state firing test.The evaluation results indicated that the pre-heating energy requirement to reach its 200℃ignition temperature was approximately 3 W,and the micro-thruster accomplished series of steady state and pulse firings.The thrust of the micro-thruster was stable.The transition to steady-state thrust was rather fast.The temperature of the thrust chamber was near 1016℃.The test proved that the resulting ADN-based 0.2 N micro-thruster achieved stable firing under the micro flow rate while realizing much reduction in engine size.The performance was good.The steady-state vacuum specific impulse at 0.2 N was more than 200 s.The successful development of the 200 mN thrust level micro-thruster further expanded the application of ADN green,non-toxic,propulsion in micro-propulsion.

关 键 词：绿色推进 ADN基单组元微推力器 热试车 

分 类 号：V237[航空宇航科学与技术—航空宇航推进理论与工程]