We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
CPR1000机组中压安注箱的压力范围问题及改进研究.
- Authors
杨腊腊; 邵辉; 陈秋炀
- Abstract
The CPR1000 unit accumulators is designed to flood the core in a short time under nitrogen pressure in the event of a loss of coolant accident to avoid fuel meltdown and core damage. The nitrogen pressure of the accumulators is the key safety parameter in the analysis of loss of coolant accident. At present, the instrument measurement uncertainty(0.6 bar)is not considered in the control range of pressure of the accumulators in the actual operation of CPR1000 unit, it has a potential risk that the actual pressure control range of the accumulators exceeds the assumptions of safety analysis, which may affect the safety function of accumulators. Based on the safety analysis of the above problem and external investigation, this paper puts forward the improvement suggestions for nuclear power plant license documents, operation procedure and alarm setting, aiming at ensuring the safe operation of unit, and the analysis shows that these improvements are feasible.
- Subjects
PRESSURE control; COOLANTS; NUCLEAR power plants; NITROGEN
- Publication
Nuclear Safety, 2024, Vol 23, Issue 4, p120
- ISSN
1672-5360
- Publication type
Article