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CEFR主容器内氩气空间作为钠池覆盖气体,其温度大小直接影响到主容器壁面温度的高低,对主容器壁安全十分重要。国内针对氩气空间的研究较少,主要是利用现有数学模型对实验快堆大小旋塞间隙内的氩气温度分布进行了数值模拟。本文针对氩气有限空间内传热过程进行了比较系统的理论分析和实验研究。在对快堆主容器内氩气空间换热理论分析基础上,在国内首次自行设计建立了模拟快堆氩气空间的水-空气实验装置,如图1所示。该实验装置满足几何相似、物理相似和边界相似的条件,并依据理论分析确定了实验参数,实验得到的气体温度分布规律可以推广到快堆原型。本文简要介绍
The argon gas in the CEFR main vessel serves as the sodium pool to cover the gas. The temperature of the CEFR directly affects the temperature of the main vessel wall, which is very important to the main vessel wall. Domestic research on argon space is less, mainly using the existing mathematical model of experimental fast reactor size and size of the gap between the argon gas temperature distribution in the numerical simulation. In this paper, a more systematic theoretical analysis and experimental study of the heat transfer process in a confined space of Argon. Based on the theoretical analysis of argon heat exchange in the main reactor of the fast reactor, the water-air experimental device simulating the fast reactor argon space was designed and constructed in China for the first time, as shown in Fig.1. The experimental device meets the conditions of geometric similarity, physical similarity and boundary similarity. Based on the theoretical analysis, the experimental parameters are determined. The experimental gas temperature distribution can be generalized to the prototype of fast reactor. This article briefly introduces