en.Wedoany.com Reported - On May 11, the main vacuum chamber and supporting systems for the "China Circulator No. 3" 3# Neutral Beam Injection (NBI) heating system, manufactured by CNNC Tongchuang (Chengdu) Technology Co., Ltd., successfully completed engineering manufacturing design, processing and fabrication, precision assembly, and full-system commissioning, and were officially shipped from the factory.
As the core auxiliary heating key equipment for the new-generation artificial sun, the "China Circulator No. 3" (HL-3) device, the 3# NBI main vacuum chamber and supporting systems serve as a crucial transport carrier for high-energy beams. It not only provides an ultra-high vacuum operating environment for the ion source, cryogenic condensation pumps, and various precision built-in components but also undertakes the critical task of high-precision structural support. It is a core foundational piece of equipment ensuring the device's long-term stable and safe operation and enabling combustion experiments.
This project achieved full-process independent controllability, from engineering manufacturing design and structural optimization to precision manufacturing and complete system delivery, fully demonstrating CNNC Tongchuang's high-level comprehensive engineering strength in the field of nuclear fusion Neutral Beam Injection (NBI) vacuum systems, integrating R&D design, precision integration, and system commissioning.
Throughout the entire project development process, CNNC Tongchuang worked closely and collaboratively with the Fusion Technology Research Institute and the Fusion Science Experiment Institute, strictly adhering to the stringent technical standards for ultra-high precision and high reliability required by fusion devices. They deeply cultivated simulation design optimization, relying on profound plasma physics theory and ultra-high vacuum engineering experience. Through multiple rounds of simulation iterations, they effectively enhanced the equipment's structural stiffness, ultra-high vacuum sealing performance, and multi-module interface adaptability. They strictly controlled the precision integration and assembly process, completing the pairing and installation of various high-precision components to high standards, achieving a compact beamline system layout, precise interfaces, and a robust structure. They rigorously carried out individual performance testing and commissioning of the main vacuum chamber and supporting systems, with all key technology indicators meeting the design specification requirements and demonstrating excellent engineering practical performance.
The successful shipment of the "China Circulator No. 3" 3# NBI main vacuum chamber and supporting systems is not only a vivid practice of CNNC Tongchuang bravely undertaking major national nuclear fusion scientific and technological tasks and overcoming difficulties but also confirms the company's increasingly mature capability to transform advanced core plasma technologies into high-end fusion engineering equipment. It truly embodies the spirit of collaborative innovation and pursuit of excellence among the various institutes of SWIP and CNNC Tongchuang, solidifying the key equipment support for the development of China's magnetic confinement nuclear fusion cause and the construction of artificial sun devices.
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