Establishment of Alarm Value for Aging Susceptibility Point of Valve Subassembly and Countermeasures for Aging Mitigation

LIANG Hansheng; JIANG Dinggong; ZHANG Chaowen; LU Wenyue; ZHANG Hongquan

Jun. 2005

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Article Navigation > Nuclear Power Engineering > 2005 > 26(S1): 97-102

LIANG Hansheng, JIANG Dinggong, ZHANG Chaowen, LU Wenyue, ZHANG Hongquan. Establishment of Alarm Value for Aging Susceptibility Point of Valve Subassembly and Countermeasures for Aging Mitigation[J]. Nuclear Power Engineering, 2005, 26(S1): 97-102.

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Establishment of Alarm Value for Aging Susceptibility Point of Valve Subassembly and Countermeasures for Aging Mitigation

Daya Bay Nuclear Power Operation and Management Co. Ltd., Shenzhen, Guangdong, 518124, China

Received Date: 2005-05-25
Rev Recd Date: 2005-10-27

Available Online: 2025-07-25

Abstract

Abstract

The article analyzes the aging mechanism and the possible failure modes of safety class 1 Motor-valve subassembly with dead pipe phenomenon in Daya Bay NPP;The most important aging susceptibility point is screened and discussed,and then the alarm value is established,Finally,some methods for aging mitigation adapted in Daya Bay NPP are brought forward and summarized.
- Valve subassembly,
- Aging,
- Susceptibility point,
- Alarm value