Core Insights - The compact fusion energy experimental device "Kua Fu Qi Ming" (BEST) in Hefei, Anhui Province, is set to demonstrate the burning of plasma such as deuterium and tritium, aiming to showcase fusion energy generation [1][2] - The successful development and delivery of the key component, the Dewar base, marks a significant milestone in the installation of major components for the device [1][2] Group 1 - The Dewar base is the first large vacuum component of the compact fusion energy experimental device, with a complex design and hundreds of interfaces [1] - The Dewar base has a diameter of approximately 18 meters, a height of about 5 meters, and weighs over 400 tons, making it the heaviest component of the main system [1] - The installation precision of the Dewar base is critical, with surface level differences needing to be controlled within 15 millimeters and positional deviations not exceeding ±2 millimeters [1] Group 2 - The completion of the Dewar base installation signifies the upcoming installation of other important components such as magnets and vacuum chambers [2] - The construction of the compact fusion energy experimental device is based on years of research on the "East Super Ring" and breakthroughs in technology and engineering during the development of the "Kua Fu" facility [2] - The device aims to provide an integrated environment close to future fusion reactor parameters, supporting the development of key technologies for fusion energy applications [2]

Core Insights - The compact fusion energy experimental device "Kua Fu Qi Ming" (BEST) in Hefei, Anhui, is progressing towards demonstrating plasma "burning" with deuterium and tritium, potentially paving the way for fusion energy generation [1][2] - The successful installation of the key component, the Dewar base, marks the beginning of the installation of major components such as magnets and vacuum chambers [2] Group 1 - The compact fusion energy experimental device has a height of approximately 20 meters and a diameter of about 18 meters, designed to meet biological safety and physical protection requirements [1] - The Dewar base is the heaviest component of the main system, weighing over 400 tons, with a complex design and hundreds of interfaces [1] - The installation precision of the Dewar base is critical, with a surface level difference controlled within 15 millimeters and a positional deviation not exceeding ±2 millimeters [1] Group 2 - The construction of the compact fusion energy experimental device is based on years of research on the "East Super Ring" and breakthroughs in key systems during the development of the fusion reactor main system "Kua Fu" [2] - The device aims to provide an integrated environment close to future fusion reactor parameters, supporting the development of key technologies for fusion energy applications, including superconducting strong magnetic fields and tritium production [2]

Core Viewpoint - The company has successfully completed the assembly of the first key component, the Dewar base, for its compact fusion energy experimental device (BEST), marking significant progress in the project development [2] Group 1 - The Dewar base is a critical component in the construction of the BEST project [2] - The successful assembly of the Dewar base indicates a major advancement in the company's efforts in fusion energy technology [2]

Core Insights - The successful installation of the Dewar base, a critical component of the compact fusion energy experimental device (BEST), marks a significant breakthrough in the project's construction [1][2]. Group 1: Project Overview - The Dewar base is the first large vacuum component of the BEST main machine, with a complex design and hundreds of interfaces [1]. - It has a diameter of approximately 18 meters, a height of about 5 meters, and weighs over 400 tons, making it the heaviest component in the BEST system and the largest vacuum component in China's fusion field [1]. - The Dewar base supports nearly 7,000 tons and its installation precision is crucial for the stability and safety of the entire project [1]. Group 2: Technical Challenges and Solutions - The project team faced significant challenges, including high-precision forming and welding, millimeter-level deformation control, and high vacuum sealing [1]. - The installation required a high lifting precision, with surface level differences controlled within 15 millimeters and positional deviations not exceeding ±2 millimeters [1]. - The team developed a specialized lifting system and utilized multi-station laser tracking to monitor reference points and dynamically adjust the lifting posture, achieving millimeter-level precision in the installation [1]. Group 3: 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 continue promoting the installation work of the device components to ensure the project's construction goals are met on time and with high quality [2].

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]

Core Viewpoint - The successful installation of the Dewar base marks a significant milestone in the construction of the BEST project, advancing the main engineering phase and accelerating the progress of component manufacturing and installation [1][5]. Group 1: Installation Details - The Dewar base is the first vacuum large component of the BEST device, with a diameter of approximately 18 meters, a height of about 5 meters, and a total weight exceeding 400 tons [1]. - The installation precision of the Dewar base is critical, requiring a surface level difference to be controlled within 15 millimeters and a positional deviation not to exceed ±2 millimeters [3]. - The installation space is extremely limited, with a minimum gap of less than 100 millimeters between the outer edge of the base and the shielding wall of the main pit [3]. Group 2: Technical Achievements - The Dewar base was developed by a project team led by the Hefei Institute of Plasma Physics, which overcame key technologies such as high-precision forming and welding, millimeter-level deformation control, and high vacuum sealing [5]. - The successful manufacturing and installation of the Dewar base lays a solid foundation for the subsequent installation and debugging of core components of the BEST device [5]. Group 3: Project Overview - The BEST (Burning Experimental Superconducting Tokamak) is a compact fusion energy experimental device that aims to validate the feasibility of fusion energy generation in a real fuel environment by 2025 [6]. - The project is expected to be completed within two years, with the goal of demonstrating fusion energy generation by 2025 and potentially lighting the first lamp with nuclear fusion by 2030 [6].

Core Points - The successful installation of the first key component, the Dewar base, for the compact fusion energy experimental device (BEST) marks a significant breakthrough in the project's construction [1] - The Dewar base is the heaviest component of the BEST system, weighing over 400 tons, with a diameter of approximately 18 meters and a height of about 5 meters [1] - This component supports nearly 7,000 tons of weight and its installation precision is crucial for the stability and safety of the entire project [1] Technical Achievements - The project team has overcome critical technologies such as high-precision forming and welding, millimeter-level deformation control, and high vacuum sealing [1] - The successful manufacturing and installation of the Dewar base lays a solid foundation for the subsequent installation and debugging of core components of the BEST device [1]

Core Insights - The BEST project in Hefei has achieved a significant breakthrough with the successful development and delivery of the key component, the Dewar base, marking a new phase in the construction of the project [1][5] - The Dewar base is the largest vacuum component in China's fusion field, measuring approximately 18 meters in diameter, 5 meters in height, and weighing over 400 tons, designed to support the main system's total weight of about 6700 tons [1][5] Group 1 - The installation of the Dewar base requires high precision, with surface level differences controlled within 15 millimeters and positional deviations not exceeding ±2 millimeters, highlighting the critical nature of its installation for overall project stability and safety [3] - The project team, led by the Hefei Institute of Plasma Physics under the Chinese Academy of Sciences, has overcome key technical challenges related to high-precision forming, welding, millimeter-level deformation control, and high vacuum sealing [5] - The successful manufacturing and installation of the Dewar base lays a solid foundation for the subsequent installation and debugging of core components in the BEST device, representing an important advancement in China's fusion research and engineering application [5] Group 2 - The Burning Experimental Superconducting Tokamak (BEST) aims to validate fusion energy generation in a real fuel environment, utilizing advanced technologies such as high-performance superconducting magnets and deuterium-tritium fusion fuel [7] - The total assembly of BEST is set to officially commence in May 2025, with completion expected two years later, aiming to demonstrate fusion energy generation for the first time globally [7] - By 2030, there is an optimistic outlook for achieving the first demonstration of fusion energy lighting a lamp [7]

Core Insights - The installation of the first key component, the Dewar base, for the compact fusion energy experimental device (BEST) in Hefei, Anhui, marks a new phase in the project's construction, accelerating component development and engineering installation [1][3] - Fusion energy, regarded as the "ultimate energy," simulates the nuclear fusion reactions occurring in the sun, aiming to demonstrate plasma "burning" of deuterium and tritium, potentially achieving the world's first fusion energy generation [1] - The Dewar base, weighing over 400 tons and measuring approximately 18 meters in diameter and 5 meters in height, is the heaviest single component in the BEST device and the largest vacuum component in China's fusion field to date [3][5] Technical Achievements - The installation of the Dewar base required high precision to ensure the future stability of the device, with surface level differences controlled within 15 millimeters and positional deviations not exceeding ±2 millimeters [5] - The project team developed a specialized lifting system and utilized laser tracking technology for real-time monitoring and adjustments, achieving millimeter-level precision during installation [5] - Following the successful installation of the Dewar base, core components of the main device will be installed sequentially, with the BEST expected to be completed by the end of 2027 [5] Strategic Importance - The steady progress of the BEST construction is of significant strategic importance for China to lead in cutting-edge fusion science research, validate key technologies for future fusion reactors, and continue to guide international developments in fusion energy [5]