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Keyword：Cryogenic System
Commissioning of the CRAFT Cryogenic System 6 kW@4.5 K Helium Refrigerator Successfully Completed
Recently, significant progress has been made in the construction of the helium refrigeration system on the CRAFT magnet platform. The on-site commissioning and performance testing of the main body of the CRAFT cryogenic system 6 kW@4.5 K helium refrigerator have been successfully completed, with all indicators meeting the design acceptance requirements. The commissioning work focused on systematic verification of the cold box refrigeration performance, liquefaction capacity, control system, safety interlocks, and the operating status of key cryogenic equipment. During the acceptance tests, the helium refrigerator completed 12 hours of continuous stable operation under design conditions, achieving a refrigeration capacity of 6 kW@4.5 K + 50 K@GHe. In addition to design conditions, the project team also conducted performance tests under helium liquefaction conditions, with relevant temperature, pressure,...
2026-09-03
Lifting Task of Large Storage Tanks in Cryogenic System Tank Area of HL-3 Upgrade Project Successfully Completed
On August 4, the lifting task of large storage tanks in the cryogenic system tank area of the HL-3 upgrade project, undertaken by the Southwestern Institute of Physics (SWIP), was successfully completed. After two days and one night of continuous efforts, a total of 14 large storage tanks were precisely positioned, including 6 medium-pressure high-purity helium storage tanks of 100 cubic meters each, 2 cryogenic liquid nitrogen storage tanks of 100 cubic meters each, and 6 auxiliary helium storage tanks, with a total lifting tonnage exceeding 200 tons. The achievement of this key milestone marks significant phased progress in the installation of cryogenic system equipment. Once the cryogenic system is completed, it will provide stable and reliable cooling capacity for the neutral beam injection system and the toroidal cryopumps of the HL-3 device, effectively enhancing the neutral beam injection efficiency and...
2026-08-05