熔盐堆中不同形态氚的在线监测和回收技术数据集

熔盐堆中的氚主要以HT和TF的形式存在。为了延长熔盐堆管道材料的使用年限，确保反应堆正常运行和保护人体健康，必须控制熔盐堆中的氚，其目的是在进入熔盐堆二回路之前尽快多量地回收氚，确保进入熔盐堆蒸汽发生器系统的氚尽可能的少，减少氚的泄漏；减少或消除氟化氚（TF）形式的氚，减少氚对熔盐堆系统的腐蚀；减少熔盐堆管道中氚的渗透。同时，氚还是有价值的核聚变材料和工业材料，因此，有必要对熔盐堆中的氚进行有效地回收、纯化。
针对熔盐堆中的不同形态氚的监测问题，建成针对熔盐堆中不同形态氚的在线监测系统样机，该样机能够实现在熔盐堆复杂的气体环境中对不同形态氚进行分离和浓度探测，对氚化水蒸气的分离效率高于95%，对HT的分离效率高于90%，测试的TEM2100A型正比计数器对气体中氚的检测下限4.3 Bq/L。建立基于超低本底液闪的氚化水测试系统，结果表明超低本地液闪测量下限可达0.175Bq/L。针对熔盐堆中氚的回收，研制完成一套TMSR尾气中氚吸附用合金储氚器原理样机，并用氩氢混气进行模拟测试，结果表明合金对气氛中氢的吸附效率大于99.99%，对熔盐堆中氚的吸附效率进行计算，保守估计吸附回收效率可达到95%以上。

Tritium in molten salt reactors (MSRs) mainly exists in the forms of HT and TF. To extend the service life of pipeline materials for MSRs, ensure the safe and stable operation of reactors and protect human health, it is imperative to control tritium in MSRs. The specific objectives are as follows: recover as much tritium as possible before it enters the secondary loop of the MSR, minimize the amount of tritium entering the steam generator system, and reduce tritium leakage; reduce or eliminate tritium in the form of tritium fluoride (TF) to mitigate tritium-induced corrosion of MSR systems; and decrease tritium permeation through MSR pipelines. Meanwhile, tritium is a valuable nuclear fusion and industrial material, so it is necessary to effectively recover and purify tritium in MSRs.

To address the problem of monitoring tritium in different forms in MSRs, an online monitoring system prototype for tritium in various species within MSRs was developed. This prototype can separate and detect the concentration of different tritium forms in the complex gas environment of MSRs. Its separation efficiency for tritiated water vapor exceeds 95%, and that for HT exceeds 90%. The detection limit of the tested TEM2100A proportional counter for tritium in gas is 4.3 Bq/L. A tritiated water testing system based on ultra-low-background liquid scintillation was established, and the results show that the measurement limit of this ultra-low-background liquid scintillation system can reach 0.175 Bq/L. For the recovery of tritium in MSRs, a prototype alloy tritium storage device for adsorbing tritium in the tail gas of TMSR was developed. Simulated tests were carried out using argon-hydrogen mixed gas, and the results indicate that the adsorption efficiency of the alloy for hydrogen in the atmosphere exceeds 99.99%. The adsorption efficiency of tritium in MSRs was calculated, and the conservative estimation shows that the adsorption and recovery efficiency can reach more than 95%.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于熔盐堆中不同形态氚（主要为HT和TF）的在线监测与回收技术，包括开发在线监测系统样机（对氚化水蒸气和HT的分离效率分别高于95%和90%，检测下限达4.3 Bq/L）以及合金储氚器原理样机（对氢的吸附效率大于99.99%，氚回收效率保守估计超过95%），旨在控制氚以延长熔盐堆管道寿命、减少腐蚀和泄漏，并支持氚作为核聚变材料的回收利用。数据集由中国科学院上海应用物理研究所创建，包含21个PDF文件，总计32.55MB，适用于核科学技术领域的研究和应用。