基于相似理论的快堆氩气空间温度场实验研究

Based on Simulation Theory of Experimental Research on Temperature Distribution in Argon Space of CEFR

本文在实验装置上研究了池式快堆主容器内氩气空间温度分布特性。实验结果表明,气体温度在封闭空间中间大部分区域维持一个相对恒定的温度,这是封闭空间内液面自然对流换热的固有特点。根据实验结果分析,提出了氩气空间高度和主容器冷却系统设计应统筹考虑的设计思想,可用于优化池快堆主容器肩部设计,对大型快堆主容器冷却系统优化设计具有参考意义。

Temperature distribution characteristic in argon space for the pool-type fast reactor is investigated at experimental apparatus.Experimental data prove that the temperature in the middle part remains approximately constant in the condition of radiation and natural convection in liquid surface to sealed space,which is inherent characteristic.On the basis of data analysis,the new design idea raise about combining to argon space height and main vessel cooling system,which put practice to optimize design of main vessel roof in fast reactor.It is reference significance for optimization design on main vessel cooling system of large power fast reactor.