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Design and Analysis of the Inlet Valve for the CFETR Torus Cryopump

Author

Listed:
  • Yaqi Zhou

    (Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
    Graduate School, University of Science and Technology of China, Hefei 230026, China)

  • Hansheng Feng

    (Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China)

  • Shuo Zhang

    (Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
    Graduate School, University of Science and Technology of China, Hefei 230026, China)

  • Ming Zhuang

    (Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China)

  • Ziyu Zhao

    (Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
    Graduate School, University of Science and Technology of China, Hefei 230026, China)

Abstract

The China Fusion Engineering Test Reactor (CFETR), a superconducting magnetic confinement tokamak fusion reactor, will develop a high-performance torus cryopump to pump torus plasma exhaust gas. The inlet valve is one of the key components of the cryopump, and it is used to isolate the cryopump from the plasma for regeneration, to control the pumping speed of the cryopump, and to operate as a pressure relief valve in case of a failure, such as the cryopipe breaking inside the cryopump chamber. This paper presents a novel inlet valve. Ensuring that the design of the inlet valve meets the above requirements will be a challenge. In order to verify the reliability of the inlet valve, its critical components are analyzed and optimized by the Finite Element Method. The effect of the stroke of the inlet valve on pumping performance is then estimated by the Monte Carlo Method, and the pressure profile in the whole flow field is studied to predict the cryopump’s behavior. Finally, the seismic capacity of the optimized inlet valve is analyzed, and the mechanical performance of the inlet valve is shown to meet CFETR design criteria. These design and analysis results will provide technical support and references for the development of the CFETR torus cryopump.

Suggested Citation

  • Yaqi Zhou & Hansheng Feng & Shuo Zhang & Ming Zhuang & Ziyu Zhao, 2023. "Design and Analysis of the Inlet Valve for the CFETR Torus Cryopump," Energies, MDPI, vol. 16(7), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3107-:d:1110627
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    References listed on IDEAS

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    1. Jiaqi Lang & Chundong Hu & Yuanlai Xie & Yunhua Tong, 2021. "Optimization Analysis of the Structural Design of NNBI Cryosorption Pumps," Energies, MDPI, vol. 14(12), pages 1-15, June.
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