摘要
本研究搭建了一个由蒸汽供应装置、安全壳、外部喷淋系统等组成的实验装置,模拟小型堆非能动安全壳在发生破口故障后,蒸汽喷射流量、破口直径、破口高度、外部喷淋流量4个因素对壳体内热分层与壳壁传热的影响。文章围绕4个因素分别设计了实验,结果表明:在蒸汽喷射流量较大、破口直径较小、破口高度较高、外部喷淋流量较大的情况下,安全壳壳体热流密度较大,热分层现象明显,安全壳呈现出上部温度偏高、下部温度偏低的情况。
In this research,an experimental device consisting of a steam supply unit,a containment vessel and an external spray system was built to simulate the effects of steam jet flow rate,the diameter of the breach,the height of the breach and the external spray flow rate on the internal thermal stratification and shell wall heat transfer of a small passive containment vessel after a breach failure.Experiments were designed based on four factors.The results show that,under the conditions of large steam jet flow,small fracture diameter,high fracture height and large external spray flow,the heat flux of the containment shell is large,the thermal stratification phenomenon is obvious,and the upper temperature of the containment is high and the lower temperature is low.
作者
胡聪旺
Hu Congwang(Hainan Nuclear Power Co.,Ltd.,Changjiang,China)
出处
《科学技术创新》
2023年第17期196-199,共4页
Scientific and Technological Innovation
关键词
安全壳
蒸汽喷射流量
破口直径
外部喷淋流量
containment
steam jet flow
diameter of the break
external spray flow rate
