en.Wedoany.com Reported - Recently, the first two sets of 1/8 sector vacuum vessel cold shields and lower port cold shields, which are core components of the central cold shield for the compact Burning-plasma Experimental Superconducting Tokamak (BEST) undertaken by Shanghai Electric Nuclear Power Group, passed acceptance inspection and were successfully delivered to the site, marking a phased breakthrough. The successful delivery of the BEST central cold shield has laid a solid foundation for the subsequent main engine assembly and system integration of the project, signifying China's continuous progress towards engineering, localization, and self-reliance in the field of extreme manufacturing for fusion reactors.
As the core cryogenic shielding component of the BEST fusion reactor main engine, the BEST central cold shield plays a critical role in insulating the high-temperature environment and ensuring the ultra-low temperature operation of the superconducting magnets. Its performance directly affects the safety and efficiency of the entire fusion experimental facility. Since the project's inception, the project team has collaborated to overcome difficulties, successively tackling multiple technical challenges such as the forming of large-size thin-walled components, ultra-long three-dimensional space cooling pipe bending technology, and high-precision tube-to-tube sheet welding deformation control.
During the project execution, despite numerous challenges including restarts, with the scientific coordination and strong support from Fusion New Energy (Anhui) Co., Ltd., the project team faced difficulties head-on without fear. All members worked with one heart and in coordinated combat, strictly controlling every production process and every technical indicator. Recently, after a comprehensive and detailed review, all key indicators of the BEST central cold shield components, including dimensional accuracy, welding quality, surface quality, pipeline sealing, and low-temperature adaptability, fully met the design requirements and industry standards. The ring assembly was successfully completed, and the components passed acceptance and were delivered to the project site, interpreting responsibility and commitment with practical actions and achievements.
In the future, the Nuclear Power Group will continue to shoulder its mission, forge ahead with courage and responsibility, persevere and strive for excellence. Based on a thorough study and implementation of the requirements of the "15th Five-Year Plan," it will closely focus on the national energy strategy and construction needs in key areas, continue to deeply cultivate the field of extreme manufacturing for fusion reactors, concentrate on core technology research and engineering applications, continuously enhance independent innovation capabilities and equipment manufacturing levels, promote the accelerated leap of fusion energy technology from scientific research to engineering practice, and strive to write a new chapter in the high-quality development of China's extreme manufacturing for fusion reactors.
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