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在燃料元件堆内功率瞬态试验中,为净化氦-3气体吸收中子产生的氚,保证试验的安全性,需设计一个用于捕集氚的装置——氚阱。选择海绵钛作为贮氚金属。原型容器的设计主要依据氚的产量、氚钛化学反应、温度、压力、还有氚衰变氦释放等因素。总体结构采用内加热形式的双层包套式不锈钢压力容器,可减小热损失和氚的渗透量。本文同时也介绍了氚阱的结构、传热、屏蔽和密封等的分析结果。
In the power transient test of the fuel element stack, to clean up the tritium generated by the helium-3 gas to absorb the neutrons and ensure the safety of the experiment, a tritium trap for tritium collection is to be designed. Select titanium sponge as tritium storage metal. Prototype container design is mainly based on the production of tritium, tritium titanium chemical reaction, temperature, pressure, and tritium decay helium release and other factors. Overall Structure The double-clad stainless steel pressure vessel in an internally heated version reduces heat loss and tritium penetration. This article also introduced the tritium trap structure, heat transfer, shielding and sealing analysis results.