压水堆单一环路流量超差的故障机理分析

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Fault Mechanism Analysis of Single Loop Flow Deviation in PWR Nuclear Power Plants

摘要: 国内三环路压水堆核电机组在功率运行时,曾发生单一环路流量超差事件。通过对故障机理和故障模式的排查分析,结合国内外同类机组的实际案例,认为单一环路流量超差问题是由测量误差相关因素导致的,可通过停堆大修后的试验和测量数据进行故障排查确认。
- 流量超差 /
- 故障树分析 /
- 测量因素
Abstract: The 3rd Ring Rd PWR repeated some conditions such as single loop flow deviation in power operation, by the qualitative analysis of the possibility and rationality of fault mechanism, and combined with the similar foreign units experience feedback. The author concluded that the single loop flow deviation mostly is caused by the measurement factors, and nuclear power stations can carry out the fault analysis and confirmed by test and measurement data during the unit overhaul.
- Flow deviation /
- Fault tree analysis /
- Measuring factors