燃料电池气体循环泵多叶转子腔内部气动性能数值研究

黎义斌 1; 李龙 1; 刘建峰 2; 杨悦民 1; 冯德玮 1

doi:10.7652/xjtuxb202103006

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燃料电池气体循环泵多叶转子腔内部气动性能数值研究

更新时间：2025-07-09

- 燃料电池气体循环泵多叶转子腔内部气动性能数值研究
- Numerical Study on the Aerodynamic Performance of Multi-Blade Rotor Cavity in the Gas Circulating Pump of Fuel Cell
- 西安交通大学学报 2021年55卷第3期页码：46-56
- 作者机构：
  
  兰州理工大学能源与动力工程学院,兰州,730050
- 作者简介：
- 基金信息：
  
  : 2020-07-28。作者简介: 黎义斌(1977—),男,副教授,硕士生导师。基金项目: “十三五”装备预研共用技术项目(41421020502)
- DOI：10.7652/xjtuxb202103006
  中图分类号： TK91
- 网络首发：2021-03-10，
  
  纸质出版：2021
- 稿件说明：
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黎义斌 1, 李龙 1, 刘建峰 2, 等. 燃料电池气体循环泵多叶转子腔内部气动性能数值研究[J]. 西安交通大学学报, 2021,55(3):46-56.

Numerical Study on the Aerodynamic Performance of Multi-Blade Rotor Cavity in the Gas Circulating Pump of Fuel Cell[J]. 2021, 55(3): 46-56.
黎义斌 1, 李龙 1, 刘建峰 2, 等. 燃料电池气体循环泵多叶转子腔内部气动性能数值研究[J]. 西安交通大学学报, 2021,55(3):46-56. DOI： 10.7652/xjtuxb202103006.

Numerical Study on the Aerodynamic Performance of Multi-Blade Rotor Cavity in the Gas Circulating Pump of Fuel Cell[J]. 2021, 55(3): 46-56. DOI： 10.7652/xjtuxb202103006.

摘要

为了研究转子间隙、转子叶数与凸轮式气体循环泵气动特性曲线之间的定量关系

并获得不同叶数转子径向激励力的分布规律

基于对称性原理

采用数学分析法和坐标变换法推导了3～6叶的圆弧渐开线圆弧型转子型线方程

并分别选择5种不同的转子间隙加以研究。基于动网格技术和RNG k-ε湍流模型

对不同间隙、不同叶数的转子进行三维非定常数值分析

揭示转子间隙、叶数对气体循环泵流量/压力特性、激励力的影响规律

并通过实验进行了验证。研究表明:随着转子间隙由0.1 mm增大到0.3 mm

不同叶数的转子出口平均流量、容积效率均呈下降趋势

且3叶转子的下降幅度最大

分别下降了0.009 4 kg·s

-1

、28.6%; 3叶、4叶转子在0.15 mm间隙时流量脉动强度相对最低

5叶、6叶转子在0.25 mm间隙时流量脉动强度相对最低; 泵出口平均流量、出口平均总压均与转子叶数呈反比关系

随着叶数的增加

转子腔内压力分布得到改善

内部增压过程更为稳定; 随着叶数增多

转子径向激励力的x轴分量F

的脉动幅值和脉动强度显著降低

但叶数对转子径向激励力的y轴分量F

的影响不显著。

Abstract

In order to study the quantitative relationships of the rotor clearance and the number of rotor blades with the aerodynamic characteristic curve of the cam-type gas circulating pump

and to obtain the distribution rule of the radial excitation force of the rotor with different blade numbers

based on the symmetry principle

the arc involute arc rotor profile equations of 3 to 6 blades rotor are derived by using mathematical analysis method and coordinate transformation method

with five different rotor clearances selected to study. Based on dynamic mesh technology and

RNG k-ε turbulence model

three-dimensional unsteady numerical simulation on the rotors with different blade numbers and clearances are performed. The influences of rotor clearance and number of blades on the flow rate/pressure characteristics and excitation force of gas circulating pump are revealed and verified by experiments. The results show that with the increase of rotor clearance from 0.1 mm to 0.3 mm

the average flow rate and volumetric efficiency of the rotor outlet with different blade numbers show a downward trend

and the three-blade rotor has the largest decline

decreased 0.009 4 kg·s

-1

and 28.6% respectively. The three-blade and four-blade rotors have the lowest flow pulsation intensity when the clearance is 0.15 mm; and the five-blade and six-blade rotors have the lowest flow pulsation intensity when the clearance is 0.25 mm. The average flow rate and the average total pressure at the outlet are inversely proportional to the number of rotor blades. With the increase of the number of blades

the pressure distribution in the rotor cavity is improved

and the internal pressurization process is more stable. As the number of blades increases

the pulsation amplitude and intensity of the rotor radial excitation force component F

are significantly reduced

but the influence of the number of blades on the rotor radial excitation force component F

is not significant.

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references

刘林林, 初嘉鹏, 胡建中. 罗茨真空泵转子型线的研究 [J]. 机械设计, 2007, 24(3): 64-67.

LIU Linlin, CHU Jiapeng, HU Jianzhong. Study on profile of roots vacuum pump rotor [J]. Journal of Machine Design, 2007, 24(3): 64-67.

李海洋, 赵玉刚, 胡柳, 等. 渐开线型罗茨真空泵转子型线的改进研究 [J]. 机床与液压, 2011, 39(22): 37-39.

LI Haiyang, ZHAO Yugang, HU Liu, et al. The improvement study on involute profile type rotor profile in Roots vacuum pump [J]. Machine Tool Hydraulics, 2011, 39(22): 37-39.

李玉龙, 冉光泽, 张宸赫. 渐开线转子型线的参数化与最优化研究 [J]. 成都大学学报(自然科学版), 2017, 36(4): 398-401.

LI Yulong, RAN Guangze, ZHANG Chenhe. Research on parameterization and optimization of involute rotor profile [J]. Journal of Chengdu University(Natural Science Edition), 2017, 36(4): 398-401.

李玉龙, 刘萍, 臧勇, 等. 渐开线转子密封用宽顶的型线构造研究 [J]. 机械传动, 2019, 43(7): 172-176.

LI Yulong, LIU Ping, ZANG Yong, et al. Research on the profile structure of the wide top for involute rotor seal [J]. Mechanical Transmission, 2019, 43(7): 172-176.

WANG Jun, LIU Ruiqing, YANG Shuran, et al. Geometric study and simulation of an elliptical rotor profile for Roots vacuum pumps [J]. Vacuum, 2018, 153(4): 168-175.

刘振超, 何雪明, 黄海楠. NURBS曲线在罗茨泵转子型线设计中的应用 [J]. 食品与机械, 2019, 35(7): 110-116.

LIU Zhenchao, HE Xueming, HUANG Hainan. Application of NURBS curve in Roots pump rotor profile design [J]. Food and Machinery, 2019, 35(7): 110-116.

LI Yibin, GUO Dongsheng, LI Xiaobin. Mitigation of radial exciting force of rotary lobe pump by gradually varied gap [J]. Engineering Applications of Computational Fluid Mechanics, 2018, 12(1): 711-723.

HSIEH Chiu-fan, HWANG Yii-wen. Tooth profile of a Roots rotor with a variable trochoid ratio [J]. Mathematical and Computer Modelling, 2008, 48(12): 19-33.

HSIEH Chiu-fan. A new curve for application to the rotor profile of rotary lobe pumps [J]. Mechanism and Machine Theory, 2015, 87(12): 70-81.

YAO Ligang, YE Zhonghe, DAI J S, et al. Geometric analysis and tooth profiling of a three-lobe helical rotor of the Roots blower [J]. Journal of Materials Processing Technology, 2005, 170(1): 259-267.

LI Yibin, DU Jun, GUO Dongsheng. Numerical research on viscous oil flow characteristics inside the rotor cavity of rotary lobe pump [J]. Braz Soc Mech Sci Eng, 2019, 41(7): 1-11.

黎义斌, 张晓泽, 郭东升, 等. 螺旋凸轮泵转子腔流量特性数值分析与验证 [J]. 农业工程学报, 2018, 34(10): 62-67.

LI Yibin, ZHANG Xiaoze, GUO Dongsheng, et al. Numerical analysis and verification of flow characteristics of rotor cavity of screw lobe pump [J]. Journal of Agricultural Engineering, 2018, 34(10): 62-67.

黎义斌, 郭东升, 唐拥林, 等. 转子径长比对凸轮泵性能影响的数值模拟与试验 [J]. 振动与冲击, 2020, 39(9): 194-200.

LI Yibin, GUO Dongsheng, TANG Yonglin, et al. Numerical simulation and experiment of the influence of rotor diameter-length ratio on lobe pump performance [J]. Vibration and Shock, 2020, 39(9): 194-200.

卢阳, 郭蓓, 周瑞鑫. 双螺杆真空泵工作过程数值模拟 [J]. 西安交通大学学报, 2015, 49(7): 67-71.

LU Yang, GUO Bei, ZHOU Ruiqing. Numerical simulation of working process of twin screw vacuum pump [J]. Journal of Xi'an Jiaotong University, 2015, 49(7): 67-71.

GUO Dongsheng, LI Yibin. Effect of different startup modes on the cavitation performance in Rotary lobe pump [J]. IOP Conference Series: Earth and Environmental Science, 2019, 240(6): 062046.

翟云飞, 张世伟, 韩峰, 等. 三叶转子罗茨真空泵内气体过程的热力学计算 [J]. 真空, 2019, 56(3): 10-15.

ZHAI Yunfei, ZHANG Shiwei, HAN Feng, et al. Thermo-dynamic calculation of the gas process in a three-blade Roots vacuum pump [J]. Vacuum, 2019, 56(3): 10-15.

刘瑞青, 崔锋, 王君, 等. 直叶与扭叶罗茨真空泵转子性能分析 [J]. 机械设计与制造, 2019, 57(8): 180-183.

LIU Ruiqing, CUI Feng, WANG Jun, et al. Performance analysis of rotors of straight blade and twisted blade Roots vacuum pump [J]. Mechanical Design and Manufacturing, 2019, 57(8): 180-183.

SUN Shukai, ZHAO Bin, JIA Xiaohan, et al. Three-dimensional numerical simulation and experimental validation of flows in working chambers and inlet/outlet pockets of Roots pump [J]. Vacuum, 2017, 137(1): 195-204.

GUO Qing, QIN Kan, LI Daijin, et al. Numerical investigation and performance enhancement of Roots pumps operating with gas-liquid mixtures [J]. Vacuum, 2020, 176: 109303.

黄宫格, 袁奇, 潘阳, 等. 叶顶泄漏对跨音速涡轮气动性能和叶片激振特性的影响 [J]. 西安交通大学学报, 2020, 54(11): 1-9.

HUANG Gongge, YUAN Qi, PAN Yang, et al. Investigation of the effects of blade tip leakage on aerodynamic performance and excitation forces in a transonic turbine cascade [J]. Journal of Xi'an Jiaotong University, 2020, 54(11): 1-9.

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