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Published in:
2023 | OriginalPaper | Chapter
Fault Analysis and Condition Monitoring of Drum Screens in Nuclear Power Plants
Authors : Fei Yu, Xiang- Jie He, Xing-Bing Lv, Wei-Hua Zhou
Published in: New Energy Power Generation Automation and Intelligent Technology
Publisher: Springer Nature Singapore
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Abstract
As nuclear safety equipment for nuclear power plants, the drum screen can ensure the safety of the cold source of the nuclear power plant by arresting small debris in seawater. The drum screen is prone to failures such as corrosion of metal parts, large vibration of the driving device, and fracture of structural connecting bolts. In actual operation, due to the lack of automatic monitoring means, the operating personnel only rely on regular inspections to identify equipment operating failures, resulting in untimely detection of equipment failures, which will affect the reliability and safety of the cooling source of the unit.
In this paper, by analyzing the operation failure types and root causes of the drum screen, the fault monitoring method of the drum screen is studied, and the vibration, stress, and corrosion monitoring system scheme of the drum screen is proposed; From the aspects of operation and maintenance, cost-effectiveness, etc., the feasibility of the condition monitoring of the drum screen is analyzed. This scheme can be used for safety monitoring and early warning of cold sources in nuclear power plants, realize the intelligentization of daily operation and maintenance of drum screens and reduce the operation and economic risks of nuclear power plants.