熔盐冷冻壁传热平衡数值模拟及实验研究

孙波; 周金豪; 窦强; 胡伟青; 李晴暖

doi:10.11889/j.0253-3219.2018.hjs.41.060601

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熔盐冷冻壁传热平衡数值模拟及实验研究

核能科学与工程 | 更新时间：2021-05-19

- 熔盐冷冻壁传热平衡数值模拟及实验研究
- Numerical analysis and experimental research on heat transfer equilibrium state of molten salt frozen wall
- 核技术 2018年41卷第6期文章编号：060601
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800
  2.中国科学院核辐射与核能技术重点实验室上海 201800
  3.中国科学院大学北京 100049
- 作者简介：
  
  [ "孙波, 男, 1987年出生, 2013年于哈尔滨工程大学获硕士学位, 从事放射化学与工程技术", "SUN Bo, male, born in 1987, graduated from Harbin Engineering University with a master's degree in 2013, engaged in radiochemistry and engineering technology" ]
  周金豪, E-mail:zhoujinhao@sinap.ac.cn ZHOU Jinhao, E-mail: zhoujinhao@sinap.ac.cn
- 基金信息：
  
  中国科学院战略性先导科技专项(XDA02030000)
- DOI：10.11889/j.0253-3219.2018.hjs.41.060601
  中图分类号： TL3
- 收稿日期：2017-05-19，
  
  修回日期：2017-09-28，
  
  纸质出版日期：2018-06-10
- 稿件说明：
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孙波, 周金豪, 窦强, 等. 熔盐冷冻壁传热平衡数值模拟及实验研究[J]. 核技术, 2018,41(6):060601

Bo SUN, Jinhao ZHOU, Qiang DOU, et al. Numerical analysis and experimental research on heat transfer equilibrium state of molten salt frozen wall[J]. Nuclear techniques, 2018, 41(6): 060601
孙波, 周金豪, 窦强, 等. 熔盐冷冻壁传热平衡数值模拟及实验研究[J]. 核技术, 2018,41(6):060601 DOI： 10.11889/j.0253-3219.2018.hjs.41.060601.

Bo SUN, Jinhao ZHOU, Qiang DOU, et al. Numerical analysis and experimental research on heat transfer equilibrium state of molten salt frozen wall[J]. Nuclear techniques, 2018, 41(6): 060601 DOI： 10.11889/j.0253-3219.2018.hjs.41.060601.

摘要

在熔盐堆燃料干法处理流程中，处理设备面临着严重的材质腐蚀问题。熔盐冷冻壁技术被视为保护相关设备耐受化学腐蚀的有效方法。熔盐冷冻壁厚度及温度场分布对防护效果及相关干法工艺参数有重要影响，在中心冷却式冷冻壁实验装置上采用FLiNaK熔盐介质开展了冷冻壁维持的实验研究，采用中心冷棒空气冷却的方式得到了不同壁温下冷冻壁的厚度范围及反应釜内温度场分布。结合数值模拟计算了冷冻壁的传热平衡工况，并与实验值进行对比和分析，得到了较为适宜的冷冻壁厚度的调节工况。冷冻壁厚度控制工艺和釜内温度场分布可为冷冻壁工艺容器的设计提供参考。

Abstract

Background

The molten salt frozen-wall technique is effective to protect the equipment involved during dry reprocessing of spent nuclear fuel in the molten salt reactor from chemical corrosion (serious corrosion).

Purpose

The thickness of frozen wall and the temperature distribution of the molten salt have a great influence on the protective effect and related dry processing parameters.

Methods

Based on the central cooled experimental apparatus of frozen wall

the maintenance of the frozen wall was carried out using FLiNaK molten salt medium.

Results

The thickness of the frozen wall and the distribution of temperature in reactor were obtained by the method of air cooling in the center of the cylinder. The heat transfer equilibrium condition of the frozen wall was calculated by numerical simulation

the computed results agreed well with the experimental results.

Conclusion

The experimental conditions for suitable thickness of frozen wall were obtained. The control technology of the frozen wall thickness and temperature field distribution can provide reference for the design of vessel with frozen wall.

关键词

Keywords

references

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