中国实验快堆钠泄漏探测技术简介

The Technology of Sodium Leak Detection in China experimental fast reactor

中国实验快堆以钠作为冷却剂,钠是活泼金属,与空气易发生猛烈的化学反应,能够及早发现钠泄漏是控制漏钠事故的前提条件。中国实验快堆主要采用接触式钠泄漏探测技术和氢含量探测技术来探测钠泄漏,同时通过钠的液位、流量及工艺间环境参数等手段间接判断是否存在钠泄漏,这些探测技术对后续建设的钠冷快堆和钠回路钠泄漏探测设计有具有一定的指导意义。

The coolant of China experimental fast reactor （CEFR） is sodium. Due to the highly chemically active nature of sodium and its reaction with air, the detection of sodium leakage in time plays an important role in guaranting against the accident. Based on the electrical conductivity of sodium and the principle of sodium water reaction, two methods of leakage detection are adopted in CEFR. Besides, the monitorings of sodium level , flow and environmental parameters are applied to fulfill the sodium leakage detection indirectly. The technologies presented have a certain guiding significance for practical engineering design of sodium leakage detection in sodium cooled fast reactor and sodium loops in future.