Based on the functional requirements of the ITER gas injection system and considering the unique operating conditions of ITER,including ultra-long injection pipelines(>20 m),high magnetic fields,high radiation,and tritium involvement,the design of the gas injection operation control system was completed following the ITER plant instrumentation and control(I&C)design requirements.Additionally,improvements in instrumentation were implemented to account for the harsh environments.An experimental test platform simulating the final design specifications of the Gas Injection System(GIS)was constructed.Characterization of the gas injection dynamics was performed on this test platform and key technical parameters including system response time were obtained.The pre-filling method to optimize the response time for gas transport through long pipelines,and gas puffing with a carrier gas to enable rapid impurity gas injection,were experimentally verified.
关键词
气体加料/预过充策略/试验平台/响应时间
Key words
gas injection/pre-filling method/experimental test platform/response time