关键词: CFETR；偏滤器；氦冷；高热负荷；混合结构 

Abstract: Based on the configuration of divertor of China fusion engineering test reactor (CFETR), T-type, 
finger-like and slab models of He-cooled divertor were preliminarily designed. Under the condition of 10MPa 
inlet helium pressure and 10MW⋅m−2 steady-state heat load, numerical analysises of their heat transfers were 
carried out. By optimizing the structural design and inlet helium parameters, the working temperature of the target 
plate was reduced and the ability of the target plate to handle high thermal load was improved. Under the 
steady-state heat load of 20MW⋅m−2, the optimized elementary units of T-type and finger-like structures were 
analyzed. Consequently, the preliminary structure of hybrid CFETR He-cooled divertor was proposed. 

Key words: CFETR, Divertor, He-cooled, High thermal load, Composite construction