扩散型氢计系统在中国实验快堆的实际应用研究

Practical Application Study of Diffused Hydrogen Meter System in CEFR

在快堆运行中,钠泄漏是快堆核电厂运行的一大安全隐患,特别是二回路蒸汽发生器换热管破损引起的钠水反应将对反应堆的安全运行造成极大的损害。本文通过对中国实验快堆(CEFR)蒸汽发生器氢计系统在不同工况下的在线监测响应特性的研究分析,掌握氢计的实际运行特性,并对氢计系统在实际应用中存在的问题给出相应的解决措施及建议,优化CEFR氢计系统运行维护技术,对于保证氢计系统可靠运行,及时发现蒸汽发生器换热管的微小泄漏,防止蒸汽发生器中、大泄漏事故的发生,优化工程应用,确保反应堆运行安全,具有重要意义。

A major problem for the fast reactor operation is sodium leakage,especially when the broken heat exchanger of steam generator causes the reaction of sodium with water.Based on the analyses of online monitoring of steam generator hydrogen meter in China Experimental Fast Reactor(CEFR)under different operating conditions,the operating characteristic of hydrogen meter is acquired.Corresponding measures and suggestions are made upon problems in practical application.The optimization of operating maintenance of CEFR hydrogen meter system is of critical importance to assure the reliable operation of the hydrogen meter system,timely detect the minor leakage in the heat exchanger of the steam generator,and prevent the large leakage accidents of the steam generator,improve the engineering application,and assure the safe operation of the reactor as well.