Design and analysis of the CFETR cryostat

doi:10.1016/j.fusengdes.2022.113062

	Design and analysis of the CFETR cryostat
	Yang, Qingxi 1; Li, Ning 1; Chen, Zhaoxi 1; Jian, Chen 1; Xu, Hao 1; Zhou, Caipin 2
刊名	FUSION ENGINEERING AND DESIGN
	2022-04-01
卷号	177
关键词	CFETR Cryostat Design Structural analysis FEM
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2022.113062
通讯作者	Yang, Qingxi(yangqx@ipp.ac.cn)
英文摘要	Cryostat is one of the most important systems of the China Fusion Engineering Test Reactor (CFETR) which is a next-generation device in the China fusion research roadmap for the realization of fusion energy. It is a large vacuum tight container (outer diameter: 38 m, height: 39.6 m) that provides 10(-4) Pa vacuum environment for the superconductor magnet system and thermal shield system, which will be operated at 4.5 K and 80 K, respectively. The cryostat encloses the entire basic systems of the tokamak and must support all types of load, including gravitational loading, electromagnetic forces, and seismic loads generated from other components and itself. The CFETR cryostat comprises a dome-shaped top lid, two cylindrical sections with circumferential stiffening ribs, a bottom base section, a bottom pedestal, and a support. It is mainly made of stainless steel (SS) 304 L/304. Based on the design requirements, the cryostat has sixteen ports at the top, six ports in the middle, and sixteen ports at the bottom, respectively to provide penetrations for heating, vacuum-pumping, diagnostic, maintenance, etc. In this paper, motivation and main technical parameters of the cryostat are described. Interfaces between the cryostat and other systems are generally presented. Structural analysis, seismic analysis and buckling analysis have been carried out in the normal and abnormal operation cases. The external vacuum cryostat and the vacuum vessel are connected through the bellows in order to absorb relative displacement between them. In addition, the strength check and fatigue life assessment of the bellows of the cryostat are also carried out at the same time. Results live up to the expectation and a technology foundation will be laid for the future construction of the cryostat.
资助项目	national key R D Program[2017YEE030503]
WOS关键词	CONCEPTUAL DESIGN ; ITER
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000779102100005
资助机构	national key R D Program
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128511]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Qingxi
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Southwestern Inst Phys, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Yang, Qingxi,Li, Ning,Chen, Zhaoxi,et al. Design and analysis of the CFETR cryostat[J]. FUSION ENGINEERING AND DESIGN,2022,177.
APA	Yang, Qingxi,Li, Ning,Chen, Zhaoxi,Jian, Chen,Xu, Hao,&Zhou, Caipin.(2022).Design and analysis of the CFETR cryostat.FUSION ENGINEERING AND DESIGN,177.
MLA	Yang, Qingxi,et al."Design and analysis of the CFETR cryostat".FUSION ENGINEERING AND DESIGN 177(2022).