粉末发动机推进剂供料研究现状及展望  

Research progresses and prospect of powdered fuel engine propellant feeding

作　　者：吴佳明 杨玉新 王纵涛 陆海峰[1] 唐杰[1] 刘海峰[1] WU Jiaming;YANG Yuxin;WANG Zongtao;LU Haifeng;TANG Jie;LIU Haifeng(Shanghai Engineering Research Center of Coal Gasification,East China University of Science and Technology,Shanghai 200237,China;Xi’an Aerospace Propulsion Institute,China Aerospace Science and Technology Corporation,Xi’an 710025,China)

机构地区：[1]华东理工大学上海煤气化工程技术研究中心,上海200237 [2]中国航天科技集团有限公司西安航天动力技术研究所,西安710025

出　　处：《航空动力学报》2024年第3期214-223,共10页Journal of Aerospace Power

基　　金：国家自然科学基金(51876066);西安航天动力技术研究所项目(SY41YYF20202777)。

摘　　要：简述了气压驱动和电动机驱动两种推进方式的粉末发动机供料系统的发展历史和研究现状,对比分析了壅塞和非壅塞粉末供给的特点以及优缺点,阐明了现有供给系统流量测量方法包括活塞位移法和称重法的原理以及存在的问题。通过对粉末发动机供料系统相关研究的归纳分析,得出以下结论:气压驱动式集成度更高,电动机驱动式活塞控制效果好;壅塞供粉稳定性强,非壅塞供粉气源利用率高;称重法测出料流率精度高,活塞位移法适用范围广。在此基础上对优化供料系统结构、探究壅塞流动机制、建立流量参数关系模型等方面进行了展望。The development history and research progresses of pneumatic driven piston type and motor driven piston type powder fuel engine propellant feeding systems were introduced.The characteristics,advantages and disadvantages of choked and non-choked powder supply were compared and analyzed.The principle and existing problems of mass flow measurement methods of feeding system,including piston displacement method and weighing method,were illustrated.By summarizing and analyzing related researches on powdered fuel engine feeding system,the following conclusions were drawn:the integration of pneumatic driven piston type was higher,the effect of piston controlling of motor driven piston type was better;the stability of choked powder supply was stronger,yet the utilization rate of air of non-choked powder supply was higher;the precision in measuring flow rate of gravimetric method was higher,yet the scope of application of piston displacement method was wider.The development directions such as optimizing the feeding system structure,exploring the mechanism of choking flow and establishing the relationship model of flow parameters were put forward for further development.

关 键 词：粉末发动机 粉末推进剂 质量流量 输送稳定性 壅塞供粉 

分 类 号：V438[航空宇航科学与技术—航空宇航推进理论与工程]