安全壳中气相裂变产物甲基碘喷淋去除的实验研究  

EXPERIMENTAL STUDIES ON THE REMOVAL OF AIRBORNE FISSION PRODUCT METHYL IODIDE BY SPRAYS IN CONTAINMENT

作　　者：朱继洲[1] 李自平[1] 俞保安[1] 

机构地区：[1]西安交通大学

出　　处：《核科学与工程》1989年第3期278-284,8,共7页Nuclear Science and Engineering

摘　　要：在压水堆严重事故工况下,积存在堆芯中的大量放射性物质会以惰性气体、元素碘、甲基碘和气溶胶等形式释放到安全壳中。这些气载裂变产物在安全壳中浓度的高低将直接影响对环境的释放量;降低事故下安全壳中裂变产物的浓度是减少裂变产物环境释放量的有效途径。对此问题进行理论和实验方面的研究,是核电安全研究中重要课题之一。本文叙述作者在理论研究工作的基础上,利用自行设计、建造的安全壳喷淋模拟实验装置,研究甲基碘的喷淋去除效果,采用气相色谱仪测定甲基碘的气相浓度,得到了不同气相温度和不同添加剂对甲基碘喷淋去除效果的影响及其规律。Following a severe accident of PWR, numerous radioactive materials contained in a reactor core would release to the containment in gaseous or airborne form such as element iodine, methyl iodide,and aerosal particles.Reducing the concentration of fission products in a containment under accident conditions is one of the effective ways for reducing the amount of fission products leaked to the atmosphere.The theoretical and experimental study for this problem is one of major tasks of nuclear safety research. This paper describes the experimental studies on the removal of airborne fission products methyl iodide by sprays in containment, which has been carried out on the basis of our theoretical work in a simulation facility and a gas chromatography used for measuring the aerosal concentration of methyl iodide.A series of experiments on the removal of mathyl iodide by sprays under different temperature and various chemical additives has been made The results are found compatible with other author's work.

关 键 词：安全壳 气相裂变 甲基碘喷淋 实验 

分 类 号：TL364.3[核科学技术—核技术及应用]