Ezperimental Study of Application of Density Lock in Passive Residual Heat Removal System
Conceptual design of advanced passive residual heat removal system in which density lock is applied in is proposed, moreover theoretical analysis and experimental study on its feasibility is carried out. According to the design, atmospheric-pressure experimental loop is built so that researches on working performance of density lock in the system are done at steady-state operation and pump trip conditions. The results show that at steady-state operation conditions, density lock can keep close in a long run, which will separate passive residual heat removal system from primary circuit system. As a result, passive residual heat removal system is in the non-operating conditions, which do not influence normal operation of reactors. At the pump trip conditions, density lock can be automatically opened quickly, which will make primary and passive heat removal system communicated. The natural circulation is well established in the two systems, and is enough to ensure removal of residual heat. In addition, experimental study on operating reliability of density lock is made on the condition of small region wave of flow. The result show that the small region wave of these parameters do not led to the failure in role of density lock, but bring about a Little position change of temperature interface in the density lock, moreover, a new balance steady state will arrive very soon.
Density lock Passive Residual heat removal system Pump trip
Gu Haifeng Yan Changqi Wang Shengfei Sun Furong
College of Nuclear Science and Technology, Harbin Engineering University 150001, China
国际会议
ISSNP2008、CSEPC、ISOFIC2008(第二届21世纪和谐核电系统国际会议、第四届电厂控制中认知系统工程方法国际会议暨第三届未来核电厂仪表与控制国际会议)
哈尔滨
英文
218-223
2008-09-08（万方平台首次上网日期，不代表论文的发表时间）