Research on Process Pipe Vibration Improvements in NPP Conventional Island

LI Gang; LIANG Bingbing; YIN Haifeng

Mar. 2025

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LI Gang, LIANG Bingbing, YIN Haifeng. Research on Process Pipe Vibration Improvements in NPP Conventional Island[J]. Nuclear Power Engineering, 2012, 33(6): 93-95,100.

Citation:

LI Gang, LIANG Bingbing, YIN Haifeng. Research on Process Pipe Vibration Improvements in NPP Conventional Island[J]. Nuclear Power Engineering, 2012, 33(6): 93-95,100.

LI Gang, LIANG Bingbing, YIN Haifeng. Research on Process Pipe Vibration Improvements in NPP Conventional Island[J]. Nuclear Power Engineering, 2012, 33(6): 93-95,100.

Citation:

LI Gang, LIANG Bingbing, YIN Haifeng. Research on Process Pipe Vibration Improvements in NPP Conventional Island[J]. Nuclear Power Engineering, 2012, 33(6): 93-95,100.

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Research on Process Pipe Vibration Improvements in NPP Conventional Island

Shanghai Nuclear Engineer Research and Design Institute, Shanghai, 200233, China

Received Date: 2012-03-14
Rev Recd Date: 2012-07-24

Available Online: 2025-03-08

Abstract

Abstract

Process pipe in NPP conventional island may vibrate by unstable fluid disturbance,since most of the pipes are non-seismic and flexible designed.Use a specific NPP conventional island pipe as an example,this paper studied the vibration amplitude,the natural frequency,the vibration limit,the vibration reason,and proposed and implemented the improved methods without changing the piping layout.The result shows that after improvement,the natural frequency increased significantly and the vibration amplitude qualified the vibration limit of ASME code OM3.
- Pipe vibration,
- Vibration limit,
- Vibration improvement