化工进展 ›› 2020, Vol. 39 ›› Issue (S2): 89-96.DOI: 10.16085/j.issn.1000-6613.2020-1287

• 化工过程与装备 • 上一篇    下一篇

旋涡式氢气循环泵的设计及性能分析

王学科1(), 沈义伟2, 赵洪滨2(), 曹岭1, 陈山1, 贾彩3, 谢晓峰4   

  1. 1.北京航天发射技术研究所,北京 100076
    2.中国石油大学(北京)机械与储运工程学院,北京 102249
    3.中国科学院过程工程研究所,北京 100190
    4.清华大学核能与新能源技术研究院,北京 100084
  • 收稿日期:2020-07-08 出版日期:2020-11-20 发布日期:2020-11-17
  • 通讯作者: 赵洪滨
  • 作者简介:王学科(1988—),男,博士,研究方向为燃料电池发动机。E-mail:wangxkneu@126.com
  • 基金资助:
    国家重点研发计划(2017YFB0103001)

Design and performance analysis of a compact hydrogen circulation pump

Xueke WANG1(), Yiwei SHEN2, Hongbin ZHAO2(), Ling CAO1, Shan CHEN1, Cai JIA3, Xiaofeng XIE4   

  1. 1.Beijing Institute of Space Launch Technology, Beijing 100076, China
    2.College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    3.Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
    4.Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
  • Received:2020-07-08 Online:2020-11-20 Published:2020-11-17
  • Contact: Hongbin ZHAO

摘要:

氢气循环泵是质子交换膜燃料电池(PEMFC)发动机核心零部件之一,本文针对氢气密度低,且氢气极易发生泄漏的问题,设计了一种结构紧凑的旋涡式氢气循环泵。以该氢气循环泵的三维流场为研究对象,建立了泵腔流场的CFD数值计算模型,利用Fluent软件进行内部流场仿真计算,分析了不同转速下的氢气循环泵的的性能特性,确定了该氢气循环泵的最小转速,通过与实验数据的对比分析,验证了该计算模型的可行性和准确性。实验结果表明:氢气循环泵电机转速控制稳定,气密性良好;氢气循环泵随着进口压力提高,氢气循环量将逐渐增大,在16000r/min条件下,氢气泵入口从35kPa升到145kPa,氢气循环流量从140L/min增加到330L/min,氢气循环量满足30kW燃料电池发电系统需求。

关键词: 燃料电池, 氢气循环泵, 数值模拟, 实验验证, 结构设计

Abstract:

Hydrogen circulation pump is one of the core components of proton exchange membrane fuel cell (PEMFC) engine. To solve the problem of low hydrogen density and the possibility of hydrogen leakage, a compact vortex hydrogen circulation pump is designed. Taking the three-dimensional flow field of the hydrogen circulation pump as the research object, the CFD numerical calculation model of the pump cavity flow field was established, and the internal flow field simulation calculation was performed using Fluent software to analyze the performance characteristics of the hydrogen circulation pump at different speeds and determine. The minimum speed of the hydrogen circulation pump is compared with the experimental data to verify the feasibility and accuracy of the calculation model. The experimental results show that the motor speed of the hydrogen circulation pump is stable and the air tightness is good; as the inlet pressure of the hydrogen circulation pump increases, the hydrogen circulation amount will gradually increase. Under the condition of 16000r/min, the hydrogen pump inlet rises from 35kPa to 145kPa, and the hydrogen circulation The flow rate is increased from 140L/min to 330L/min, and the hydrogen circulation capacity meets the needs of the 30kW fuel cell power generation system.

Key words: fuel cells, hydrogen circulation pump, numerical simulation, experimental validation, comparative analysis

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