旋片式动态水气分离器输送能力提升研究  

Research on Improvement of Conveying Capacity of Dynamic Gas-Liquid Separator with Rotary Impeller

作　　者：王柏辉 史宝鲁 邓明君 李英斌[2] 尚文锦[3] WANG Baihui;SHI Baolu;DENG Mingjun;LI Yingbin;SHANG Wenjin(State Key Laboratory of Astronautic Dynamics,Xi’an 710043,China;National Key Laboratory of Human Factors Engineering,China Astronaut Research and Training Center,Beijing 100094,China;China Astronaut Research and Training Center,Beijing 100094,China)

机构地区：[1]宇航动力学国家重点实验室,西安710043 [2]中国航天员科研训练中心人因工程重点实验室,北京100094 [3]中国航天员科研训练中心,北京100094

出　　处：《载人航天》2023年第3期292-300,共9页Manned Spaceflight

基　　金：人因工程重点实验室基金项目(SYFD061909)。

摘　　要：为解决载人航天器中旋片式动态水气分离器输送能力不足的问题,提出了结合流体体积(VOF)多相流模型、剪切应力运输(SST k-ω)模型及多参考系(MRF)模型的输送能力计算流体力学(CFD)求解方法。通过仿真方法分析了电机转速、叶片数量和叶轮尺寸等不同参数对输送能力的影响;设计了试验装置,开展了输送能力地面测试试验,并提出了输送能力的提升方法。结果表明:增加电机转速、叶轮直径、叶片宽度均会使液体出口压力和功耗同时增大,增加叶片在减小功耗的同时可提高液体出口压力。基于试验得到的不同参数对输送能力的影响规律与仿真计算的偏差较小,验证了仿真方法的正确性和输送能力提升方法的适用性。To solve the problem of low conveying capacity of the Dynamic Gas Liquid Separator with Rotary Impeller(DGLSRI)in manned spacecraft,the Computational Fluid Mechanics(CFD)solving method combining Volume of Fluid(VOF)multiphase flow model,Shear Stress Transport(SST)k-ωmodel and Multiple Reference Frame(MRF)model was proposed.The conveying capacity of DGLSRI under different parameter conditions including motor speed,number of blades,and impeller size was calculated through simulation,and the influence rule of different parameter changes on the conveying capacity was obtained.An experimental device was designed and the experiment of the conveying capacity on the ground was carried out.In the end,the method for improving the conveying capacity was proposed.The results showed that increasing the motor speed,impeller diameter and blade width could increase the liquid outlet pressure and the power consumption at the same time.However,increasing the number of blades could increase the liquid outlet pressure while reducing the power consumption.The difference between the influence law of different parameters on the conveying capacity obtained from the experiment and the simulation calculation was small,which proved the validity of the simulation method and the applicability of the conveying capacity improvement method was verified.

关 键 词：旋片式动态水气分离器 输送能力 电机转速 叶片 功耗 

分 类 号：V476.1[航空宇航科学与技术—飞行器设计]