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논문 기본 정보

자료유형
학술저널
저자정보
Wen-qing Li (Institute of Process Equipment, College of Energy Engineering, Zhejiang University) Lei Zhao (Institute of Process Equipment, College of Energy Engineering, Zhejiang University) Yang Yue (SUFA Technology Industry Co., Ltd.) Jia-yi Wu (Institute of Process Equipment, College of Energy Engineering, Zhejiang University) Zhi-jiang Jin (Institute of Process Equipment, College of Energy Engineering, Zhejiang University) Jin-yuan Qian (Institute of Process Equipment, College of Energy Engineering, Zhejiang University)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제3호
발행연도
2022.3
수록면
849 - 859 (11page)

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Feed-water valves (FWVs) are used to regulate the flow rate of water entering steam generators, whichare very important devices in nuclear power plants. Due to the working environment of relatively highpressure and temperature, there is strength failure problem of valve body in some cases. Based on thethermo-fluid-solid coupling model, the valve body stress of the feed-water valve in the opening processis investigated. The flow field characteristics inside the valve and temperature change of the valve bodywith time are studied. The stress analysis of the valve body is carried out considering mechanical stressand thermal stress comprehensively. The results show that the area with relatively high-velocity areamoves gradually from the bottom of the cross section to the top of the cross section with the increase ofthe opening degree. The whole valve body reaches the same temperature of 250 C at the time of 1894 s. The maximum stress of the valve body meets the design requirements by stress assessment. This workcan be referred for the design of FWVs and other similar valves.

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