中国氦冷固态实验包层模块In-box LOCA事故分析研究

发布时间：2019-02-17 15:16

【摘要】：中国氦冷固态实验包层模块(CN HCCB TBM)将在ITER 2号窗口进行测试,在测试期间,聚变中子和TBM内部材料发生核反应,产生氚和其他放射性物质。考虑到ITER的运行和工作人员与公众的安全,在进入ITER测试之前需要进行事故安全分析。本文应用MELOCR对HCCB TBM及其氦冷系统(HCS)进行建模,开展了TBM增殖区冷却板流道破口事故(In-box LOCA)安全研究,并对泄压罐体积,破口面积,隔离阀关闭延迟时间等关键参数进行敏感性分析。结果表明:在保守假设流道全破裂的工况下,box压力超过其压力限值4 MPa,而单根流道和5根流道破裂的工况下,box均未超过其压力限值;安装泄压罐和改变隔离阀关闭延迟时间能够有效的控制box压力。
[Abstract]:China helium cooled solid state experimental blanket module (CN HCCB TBM) will be tested in the ITER 2 window during which fusion neutrons react with internal materials of TBM to produce tritium and other radioactive materials. Considering the operation of ITER and the safety of staff and the public, accident safety analysis is required before entering ITER test. In this paper, HCCB TBM and its helium cooling system (HCS) are modeled by MELOCR, and the safety of TBM cooling plate channel break accident (In-box LOCA) is studied. The sensitivity analysis of the key parameters such as the delay time of the isolation valve is carried out. The results show that under the condition of conservative assumption that the pressure of box exceeds its pressure limit of 4 MPa, and that of single channel and 5 channel rupture, box does not exceed its pressure limit. Box pressure can be effectively controlled by installing the pressure relief tank and changing the delay time of the isolation valve.
【作者单位】：中国科学院核能安全技术研究所中子输运理论与辐射安全重点实验室;中国科学技术大学;西安交通大学;
【基金】：国家磁约束核聚变能发展研究专项(2014GB11200、2014GB11600)
【分类号】：TL364.4

【相似文献】