燃料电池系统爪式氢气循环泵内部流动特性模拟

董凯瑞; 刘广彬; 高志成

doi:10.13433/j.cnki.1003-8728.20220032

燃料电池系统爪式氢气循环泵内部流动特性模拟

doi: 10.13433/j.cnki.1003-8728.20220032

1.
青岛科技大学机电工程学院，山东青岛　266061
2.
广东智空动力科技有限公司，广东佛山　528000

基金项目: 中国科学院产业技术研究院产业化创新团队专项（ZK2018005）

详细信息

作者简介:
董凯瑞（1996−），硕士研究生，研究方向为燃料电池系统氢气供应设备，dkr168@163.com

通讯作者:
刘广彬，副教授，硕士生导师，lgbcomp@163.com

中图分类号: TK91;TH4
计量
- 文章访问数: 178
- HTML全文浏览量: 76
- PDF下载量: 20
- 被引次数: 0
出版历程
- 收稿日期: 2021-05-27
- 网络出版日期: 2023-09-13
- 刊出日期: 2023-08-31

Simulating Internal Flow Characteristics of Claw-type Hydrogen Circulation Pump in Fuel Cell System

1.
College of electromechanical engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
2.
Guangdong Zhikong Power Technology Co., Ltd., Foshan 528000, Guangdong, China

摘要

摘要: 爪式氢气循环泵具有输气平稳、适应工况范围广、效率高等优点，是燃料电池系统的关键设备。建立了氢气循环泵数学模型，数值模拟了其内部流动特性，获得了工作腔内流场分布规律。结果表明：转子工作过程存在等容输送过程，形成的两侧工作腔内气体压力、温度均存在差异，泄漏导致容积较小的工作腔内压力较高，两者压力差约为8.1 kPa。两侧工作腔内压力随间隙、吸排气压力的增大而增大，温度随吸气压力的增大而减小。转子最大热变形位于转子爪尖处。模拟结果与实验值基本吻合，验证了模拟方法的准确性。
- 氢气循环泵 /
- 数值模拟 /
- 流场 /
- 变形
Abstract: The claw-type hydrogen circulation pump is the key equipment of a fuel cell system, which has the advantages of stable gas transmission, wide operating range and high efficiency. In this paper, the mathematical model of the hydrogen circulation pump is established, its internal flow characteristics are numerically simulated, and the flow field distribution law in its working chamber is obtained. The results show that there is an equal-volume conveyance process in the working process of the rotor of the circulation pump. The gas pressure and temperature in the two working cavities are different, and the leakage leads to higher pressure in the working chamber with smaller volume, with the pressure difference being about 8.1 kPa.The pressure increases with the increase of clearance, suction and discharge pressure; the temperature decreases with the increase of suction pressure. The maximum thermal deformation of the rotor is located at the rotor's claw tip.The simulation results are basically consistent with the experimental values, thus verifying the accuracy of the simulation method.
- hydrogen circulation pump /
- numerical simulation /
- flow field /
- deformation

HTML全文

图 1 氢气循环泵原理

Figure 1. Principle of hydrogen circulating pump

下载: 全尺寸图片幻灯片

图 2 氢气循环泵的流体域

Figure 2. Fluid domain of hydrogen circulating pump

下载: 全尺寸图片幻灯片

图 3 流体域网格示意图

Figure 3. Fluid domain grid diagram

下载: 全尺寸图片幻灯片

图 4 不同角度压力分布

Figure 4. Pressure distribution at different angles

下载: 全尺寸图片幻灯片

图 5 速度场分布

Figure 5. Velocity field distribution

下载: 全尺寸图片幻灯片

图 6 位置点

Figure 6. Position point

下载: 全尺寸图片幻灯片

图 7 工作腔压力随时间变化关系

Figure 7. Variation of chamber pressure with time

下载: 全尺寸图片幻灯片

图 8 左右工作腔内的压力和温度

Figure 8. Pressure and temperature in the left and right working chamber

下载: 全尺寸图片幻灯片

图 9 转子热变形

Figure 9. Rotor thermal deformation

下载: 全尺寸图片幻灯片

图 10 模拟值与实验值的对比结果

Figure 10. Results of comparison between simulated and experimental values

下载: 全尺寸图片幻灯片

表 1 模拟参数

Table 1. Simulation parameter

参数	数值	参数	数值
进口压力/kPa	260	轴向间隙/mm	0.06
出口压力/kPa	280	径向间隙/mm	0.06
进气温度/℃	75	转速/(r·min⁻¹)	5000

下载: 导出CSV

表 2 转子变形大小

Table 2. Rotor deformation size

角度/(°)	最大变形值/mm	角度/(°)	最大变形值/mm
60	4.10 × 10⁻²	180	4.36 × 10⁻²
120	4.15 × 10⁻²	270	4.42 × 10⁻²

下载: 导出CSV

参考文献(18)

[1]	李奇, 刘嘉蔚, 陈维荣. 质子交换膜燃料电池剩余使用寿命预测方法综述及展望[J]. 中国电机工程学报, 2019, 39(8): 2365-2375. LI Q, LIU J W, CHEN W R. Review and prospect of remaining useful life prediction methods for proton exchange membrane fuel cell[J]. Proceedings of the CSEE, 2019, 39(8): 2365-2375. (in Chinese)
[2]	WANG X H, XU S C, XING C M. Numerical and experimental investigation on an ejector designed for an 80 kW polymer electrolyte membrane fuel cell stack[J]. Journal of Power Sources, 2019, 415: 25-32. doi: 10.1016/j.jpowsour.2019.01.039
[3]	LIU Z R, LIU Z, JIAO K, et al. Numerical investigation of ejector transient characteristics for a 130‐kW PEMFC system[J]. International Journal of Energy Research, 2020, 44(5): 3697-3710. doi: 10.1002/er.5156
[4]	YIN Y, FAN M Z, JIAO K, et al. Numerical investigation of an ejector for anode recirculation in proton exchange membrane fuel cell system[J]. Energy Conversion and Management, 2016, 126: 1106-1117. doi: 10.1016/j.enconman.2016.09.024
[5]	ZHOU S M, JIA X H, YAN H M, et al. A novel profile with high efficiency for hydrogen-circulating Roots pumps used in FCVs[J]. International Journal of Hydrogen Energy, 2021, 46(42): 22122-22133. doi: 10.1016/j.ijhydene.2021.04.038
[6]	XING L F, HE Y N, WEN J, et al. Three-dimensional CFD modelling of a Roots blower for hydrogen recirculation in fuel cell system[C]//2018 24th International Compressor Engineering Conference. Purdue, 2018
[7]	ZHANG Q Q, FENG J M, WEN J, et al. 3D transient CFD modelling of a scroll-type hydrogen pump used in FCVs[J]. International Journal of Hydrogen Energy, 2018, 43(41): 19231-19241. doi: 10.1016/j.ijhydene.2018.08.158
[8]	GU P T, XING L F, WANG Y F, et al. Transient flow field and performance analysis of a claw pump for FCVs[J]. International Journal of Hydrogen Energy, 2021, 46(1): 984-997. doi: 10.1016/j.ijhydene.2020.09.154
[9]	LI Q H, WANG W M, WEAVER B, et al. Active rotordynamic stability control by use of a combined active magnetic bearing and hole pattern seal component for back-to-back centrifugal compressors[J]. Mechanism and Machine Theory, 2018, 127: 1-12. doi: 10.1016/j.mechmachtheory.2018.04.018
[10]	SUN S K, ZHAO B, JIA X H, 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: 195-204. doi: 10.1016/j.vacuum.2017.01.005
[11]	李宏利. 涡旋式压缩机涡旋型线的研究综述与前景[J]. 山东工业技术, 2016(13): 13. LI H L. Research review and Prospect of scroll profile of scroll compressor[J]. Shandong Industrial Technology, 2016(13): 13. (in Chinese)
[12]	VOORDE J V, VIERENDEELS J, DICK E. Development of a Laplacian-based mesh generator for ALE calculations in rotary volumetric pumps and compressors[J]. Computer Methods in Applied Mechanics and Engineering, 2004, 193(39-41): 4401-4415. doi: 10.1016/j.cma.2003.12.063
[13]	KOVACEVIC A. Boundary adaptation in grid generation for CFD analysis of screw compressors[J]. International Journal for Numerical Methods in Engineering, 2005, 64(3): 401-426. doi: 10.1002/nme.1376
[14]	王君, 宋永兴, 姜营, 等. 基于结构化动网格的涡旋压缩机内部流场模拟[J]. 工程热物理学报, 2016, 37(2): 309-313. WANG J, SONG Y X, JIANG Y, et al. Numerical simulations of internal flow fields for scroll compressors based on structured dynamic meshes[J]. Journal of Engineering Thermophysics, 2016, 37(2): 309-313. (in Chinese)
[15]	李海峰, 吴冀川, 刘建波, 等. 有限元网格剖分与网格质量判定指标[J]. 中国机械工程, 2012, 23(3): 368-377. doi: 10.3969/j.issn.1004-132X.2012.03.026 LI H F, WU J C, LIU J B, et al. Finite element mesh generation and decision criteria of mesh quality[J]. China Mechanical Engineering, 2012, 23(3): 368-377. (in Chinese) doi: 10.3969/j.issn.1004-132X.2012.03.026
[16]	江涛, 谷正气, 杨易, 等. 细分网格在车身流场仿真中的精度效率研究[J]. 中国机械工程, 2009, 20(23): 2844-2849. doi: 10.3321/j.issn:1004-132X.2009.23.018 JIANG T, GU Z Q, YANG Y, et al. Study on the precision and efficiency of subdivision mesh in automobile flow field simulation[J]. China Mechanical Engineering, 2009, 20(23): 2844-2849. (in Chinese) doi: 10.3321/j.issn:1004-132X.2009.23.018
[17]	冯博琳. 复杂型面螺杆转子结构及流场特性分析[D]. 汉中: 陕西理工大学, 2018 FENG B L. Analysis of structure and flow field characteristics of complex profile screw rotor[D]. Hanzhong: Shaanxi University of Technology, 2018 (in Chinese)
[18]	何雪明, 施国江, 武美萍, 等. 双螺杆压缩机CFD分析新方法的研究与应用[J]. 机械科学与技术, 2018, 37(2): 211-219. HE X M, SHI G J, WU M P, et al. Exploring and applying a new method of analyzing CFD of twin screw compressor[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(2): 211-219. (in Chinese)