BEST首个关键部件杜瓦底座成功落位装配

Core Points - The successful installation of the Dewar base marks a significant breakthrough in the construction of the BEST project, a compact fusion energy experimental device [1][2] - The Dewar base is the first large vacuum component of the BEST main unit, with a diameter of approximately 18 meters, a height of about 5 meters, and a total weight exceeding 400 tons, making it the heaviest component in the BEST system and the largest vacuum component in China's fusion field [1] - The installation precision of the Dewar base is critical for the stability and safety of the entire project, with specific requirements for height difference and positional deviation [1] Technical Achievements - The project team overcame challenges in high-precision forming and welding, millimeter-level deformation control, and high vacuum sealing to successfully develop the Dewar base component [1] - A specialized lifting system was independently developed to ensure precise installation, utilizing components such as balance beams and lifting adapters to finely adjust the lifting level [1] - Real-time monitoring with multi-station laser tracking instruments was employed to dynamically adjust the lifting posture, achieving millimeter-level precision in the installation [1] Future Plans - The successful delivery and installation of the Dewar base lays a solid foundation for the installation and debugging of subsequent core components of the BEST project [2] - The BEST team aims to promote the installation work of the device components with high quality and on schedule, embodying the spirit of the all-superconducting tokamak large scientific team [2]