论文部分内容阅读
硝酸铀酰溶液核临界安全实验装置专门用于研究乏燃料后处理中储存容器的核临界安全问题。为了得到我国自己的核临界安全实验数据,中国原子能科学研究院设计、建造了铀溶液核临界安全实验装置。实验装置的活性区硝酸铀酰溶液内可含中子吸收体或不含中子吸收体、活性区可有反射层或没有反射层,在以上四种条件下,可对不同硝酸铀酰溶液浓度进行临界试验研究。该实验装置具有多种安全保护措施,但运行方式简便,启动、停止容易,单次误操作不危及实验装置的特点。该装置还具有可视性定量、限量自动加料系统,高精度全程液位测量计以及采用多操作步骤才能完成‘一次注量’的控制方式等特点。安全分析认为该装置造成核临界事故的概率为10-8。
The uranyl nitrate solution nuclear criticality safety test facility was specifically designed to study the nuclear criticality safety issues of storage vessels in spent fuel reprocessing. In order to obtain China’s own nuclear critical safety experimental data, China Institute of Atomic Energy designed and built a nuclear critical safety experimental device for uranium solution. The active zone of the experimental device may contain neutron absorber or no neutron absorber in the solution of uranyl nitrate, and the active zone may have a reflective layer or a reflective layer. Under the above four conditions, the concentration of different uranyl nitrate solution Conduct a critical experimental study. The experimental device has a variety of safety protection measures, but the operation is simple, easy to start, stop, a single misuse does not endanger the characteristics of the experimental device. The device also has the visibility of quantitative, limited automatic feeding system, full-scale high-precision liquid level measurement and the use of multiple steps to complete a “fluency” control and so on. Security analysis that the device caused a critical nuclear accident probability of 10-8.