快堆电站蒸汽发生器中小泄漏探测系统的设计

THE DESIGN OF SMALL LEAK DETECTION SYSTEM IN LMFBR STEAM GENERATOR

文章描述和分析了用于快堆电站蒸汽发生器小泄漏探测的扩散型微氢探测系统,建立了钠-水反应和氢通过镍膜扩散的理论模型。在实验数据的基础上对本系统的灵敏度、响应时间、机械性能和稳定性进行了讨论和评价,结果表明国内自行研制的镍管具有良好的机械性能和透氢性能,本系统能够满足快堆电站的要求。

The scheme of the diffusion--type hydrogen meter system used for detectingthe small leaks in the steam generators of LMFBR is described and analysed. Thetheoretical models of sodium--water reaction and diffusion of hydrogen throughnickel membrane are established. The performance of the system including sensiti-vity, response time, mechanic property and stability is discussed and evaluated onthe basis of experimental data. The result indicates the system has good propertiesin mechanics and hydrogen permeability and can meet the requirement of LMFBR.