某核燃料循环火灾事故研究装置及初步研究成果介绍

A brief introduction to the fire accident research facilities for nuclear fuel cycle safety at CIRP

火灾事故作为核燃料循环设施典型事故,是国际核燃料循环安全领域研究的焦点。中国辐射防护研究院目前建有小、中、大三个尺度的核燃料循环火灾事故放射性源项研究装置。小尺度装置为200 L圆柱体燃烧舱室,主要用于可燃物基础参数测试;中尺度装置和大尺度装置分别为20 m^(3)、120 m^(3)长方体燃烧舱室,主要用于开展可燃物燃烧速率、温度分布、放射性气体与气溶胶释放份额、核素释放份额和过滤效率等科学研究。重点对三套装置各自的特征和研究能力进行总结,结合国际研究热点提出了进一步研究计划。

Fire accident is a typical postulated accident in nuclear fuel cycle facilities,and is the focus of international nuclear fuel cycle safety research.A series of fire research facilities were constructed in China Institute for Radiation Protection(CIRP).The small-scale facility consists of a 200 L cylindrical combustion chamber,and is mainly used for testing the basic parameters of combustibles.The middle-scale and large-scale facilities consist of 20 m^(3) and 120 m^(3) rectangular combustion chambers respectively,both of them are mainly used to carry out tests for combustion rate,temperature distribution,radioactive gas and aerosol release share,nuclide release share and filtration efficiency of HEPA.This paper briefly introduces the characteristics of the three experimental facilities,and the research capabilities of each facility were summarized.Further research plans were put forward.