作　　者： (赵宏生）; (王桃葳）; (刘小雪）; (徐刚）; (陈晓彤）; (李自强）; (刘兵）;

机构地区： 清华大学核能与新能源技术研究院

出　　处： 《核动力工程》 2017年第S1期58-61,共4页

摘　　要： 针对我国高温气冷堆乏燃料研究设施的空白,研究设计了专门用于高温气冷堆球形燃料元件辐照后性能研究的乏燃料分析实验室和专用工艺设备。基于球形燃料元件与包覆燃料颗粒的特殊结构,所设计的乏燃料分析实验室包括5间热室、6个手套箱和辅助设施,研究设计了专用的工艺实验设备,能够对辐照后的高温气冷堆燃料元件和包覆燃料颗粒进行宏观检查、燃耗测量、元件解体、模拟事故条件加热、辐照微球γ测量分析破损率,通过金相显微镜和扫描电镜进行微观结构分析,开展燃料元件的辐照失效机理研究。 HTR spent fuel laboratory is designed and built to establish an advanced platform with hot cells and ancillary facilities for irradiated HTR spherical fuel elements and spent fuel elements. The post irradiation examination(PIE) research carried along this project aims to find out the failure and damage mechanisms of both TRISO coated fuel particles and HTR spherical elements. The hot cell laboratory mainly consists of five single hot cells, six shielded glove boxes, one conveyor line and a pneumatic sample transportation system. Apparatus and ancillary equipment are specially modified based on HTR fuel element's microstructure to meet the requirements of remote control. The hot cell laboratory covers the functions of weighting, burnup measurement, heating test, deconsolidation test, damage rate measurement, sample preparation, macrostructure and microstructure investigation, thermal properties measurement of both post irradiated spherical FE and TRISO coated fuel particles. Results will provide significant reference data for new fuel element design.

关 键 词： 热室设计 高温气冷堆 乏燃料元件 辐照后检验 设备