Fabrication Design, Qualification and Key Technologies of ITER Gravity Supports

Zhang Teng; Zhang Bo; Wang Yu; Li Pengyuan; He Zujuan; Wei Haihong; Sun Zhenchao; Hou Binglin; Kang Daoan

doi:10.13832/j.jnpe.2021.04.0265

Volume 42 Issue 4

Aug. 2021

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Article Navigation > Nuclear Power Engineering > 2021 > 42(4): 265-269

Zhang Teng, Zhang Bo, Wang Yu, Li Pengyuan, He Zujuan, Wei Haihong, Sun Zhenchao, Hou Binglin, Kang Daoan. Fabrication Design, Qualification and Key Technologies of ITER Gravity Supports[J]. Nuclear Power Engineering, 2021, 42(4): 265-269. doi: 10.13832/j.jnpe.2021.04.0265

Citation:

Zhang Teng, Zhang Bo, Wang Yu, Li Pengyuan, He Zujuan, Wei Haihong, Sun Zhenchao, Hou Binglin, Kang Daoan. Fabrication Design, Qualification and Key Technologies of ITER Gravity Supports[J]. Nuclear Power Engineering, 2021, 42(4): 265-269. doi: 10.13832/j.jnpe.2021.04.0265

Citation:

Zhang Teng, Zhang Bo, Wang Yu, Li Pengyuan, He Zujuan, Wei Haihong, Sun Zhenchao, Hou Binglin, Kang Daoan. Fabrication Design, Qualification and Key Technologies of ITER Gravity Supports[J]. Nuclear Power Engineering, 2021, 42(4): 265-269. doi: 10.13832/j.jnpe.2021.04.0265

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Fabrication Design, Qualification and Key Technologies of ITER Gravity Supports

doi: 10.13832/j.jnpe.2021.04.0265

1.
Southwestern Institute of Physics (SWIP), Chengdu, 610041, China
2.
China International Nuclear Fusion Energy Program Executive Center (CNDA), Beijing, 100081, China
3.
Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2020-12-07
Rev Recd Date: 2021-02-26
Publish Date: 2021-08-15

Abstract

Abstract

As a key component of the ITER magnet supports, the ITER gravity support (GS) serves not only to bear the weight of the toroidal field (TF) coil superconductor and the alternate electromagnetic force but also to interrupt the heat from the cryostat ring and to ensure the superconductive state of the TF coils. In this paper, the fabrication design of the GS was simulated and verified via the prototype engineering test. The fatigue performance of the 718 studs was qualified by the 77 K prototype fatigue test. The design of the thermal anchor structure was characterized by the heat exchange test which carried out in a vacuum chamber. Subsequently, based on the fabrication design, the hydraulic tensors and the bespoke high precision bolt elongation measuring device were employed to fasten all the studs accurately. Finally, the results of the leakage test in the vacuum chamber indicated that the leakage rate of GS is much lower than that of ITER requirement. Based on the above work, the fabrication design is feasible and can be utilized in the manufacturing of ITER GS.
- ITER,
- Gravity support (GS),
- Prototype engineering test,
- Heat transfer efficiency test,
- High precision tightening,
- Leakage test in vacuum chamber

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References(8)

References

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