转子螺旋角对氢气循环泵流动特性的影响  

The Influence of Rotor Helix Angle on the Flow Characteristics of Hydrogen Circulation Pump

作　　者：李小亮 翟欢乐 LI Xiao-liang;ZHAI Huan-le(Aviation Engineering Institute,Jiangsu Aviation Technical College,Zhenjiang,Jiangsu 212134;Research Center of Fluid Machinery Engineering and Technology,Jiangsu University,Zhenjiang,Jiangsu 212013)

机构地区：[1]江苏航空职业技术学院航空工程学院,江苏镇江212134 [2]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《液压与气动》2024年第5期145-150,共6页Chinese Hydraulics & Pneumatics

摘　　要：氢气循环泵是氢燃料电池系统重要动力设备,主要作用是由阳极回收未消耗的氢气,并将其运输回电池堆入口,以提高氢气利用效率。针对一款常规氢气循环泵,研究了转子螺旋角变化对性能的影响规律,结果表明:随着转子螺旋角从0°增加到60°,氢气循环泵的平均流量呈现先减小再增大的趋势,在螺旋角为22.5°时具有最小值,在螺旋角为60°时具有最大值;氢气循环泵的流量和压力脉动因数呈现先增大后减小的趋势,增大的幅度不高,但降低幅度较大,在螺旋角为60°时具有最小值。该氢气循环泵转子的最优螺旋角为60°,对氢气循环泵的整体性能改善具有重要作用。The hydrogen circulation pump(HCP)is an important power component of the hydrogen fuel system,used to recover the unconsumed hydrogen from the anode and transport it back to the inlet of the battery stack to improve the hydrogen utilization efficiency.The influences of helix angle on the performance of aconventional HCPis analyzed.The results show that as the rotor helix angle increases from 0°to 60°,the average flow rate of the HCP shows a trend of first decreasing and then increasing,with a minimum value at the helix angle of 22.5°and a maximum value at the helix angle of 60°.The flow and pressure pulsation factors of the HCP show a trend of first increasing and then decreasing,with a small increase but a significant decrease,and have a minimum value at the helix angle of 60°.The research results show that the optimal helix angle for therotor of the HCP is 60°,which plays an important role in improving the overall performance of the HCP.

关 键 词：氢气循环泵 螺旋角 流量脉动 压力脉动 

分 类 号：TH138[机械工程—机械制造及自动化] TK91[动力工程及工程热物理] TH48