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

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...

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Bibliographic Details
Published inEnergies (Basel) Vol. 16; no. 7; p. 3107
Main Authors Zhou, Yaqi, Feng, Hansheng, Zhang, Shuo, Zhuang, Ming, Zhao, Ziyu
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.04.2023
Subjects
Analysis
CFETR
Critical components
Cryopumping
Deformation
Design
Design analysis
Design criteria
Engine valves
Engineering test reactors
Exhaust gases
finite element analysis
Finite element method
Fusion
Fusion reactors
Inlet valves
Mechanical properties
Monte Carlo method
Monte Carlo simulation
Nitrogen
Nuclear energy
Nuclear power plants
Plasma
Pumping
Reactors
Relief valves
Seismic response
Superconductors
Technical services
torus cryopump
Toruses
Valves
China
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16073107