Progress in Construction of Liquid Metal LiPb Experimental Loops in China

摘要

The activities of FDS series fusion reactors design with liquid tritium breeder blankets have been done at ASIPP for years. Researches on LiPb experimental loop and construction of LiPb loop are essential to the researches of China liquid LiPb blankets. A lot of work has been done at ASIPP on design, manufacture and experiments for the series of LiPb loops i. e. DRAGON-Ⅰ, DRAGON-Ⅱ, DRAGON-Ⅲ and DRAGON-Ⅳ. DRAGON- Ⅰ is a thermal convection LiPb loop made of SS316L and operating at 480℃, 3000 hours operation for compatibility test on CLAM has been finished. DRAGON- Ⅱ and DRAGON-Ⅲ are thermal convection LiPb loops, made of Inconel 600 and SiC<,f>/SiC pipes, and operating at 700℃ and 1000℃, respectively, to obtain corrosion results of materials such as SiC<,f>/SiC composite etc.. DRAGON-Ⅱ has already been built up and under testing. DRAGON-Ⅲ is under construction. Base on the experiment requirement on the characteristics of flowing LiPb, MHD effect and corrosion to materials, DRAGON-Ⅳ forced convection loop is being designed, the magnetic field is about 2T.