Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Experimental study on vibration projection of seawater circulation pumps in nuclear power plant

  • Lin Bin (National Research Center of Pumps, Jiangsu University) ;
  • Huang Qian (China Nuclear Power Engineering Co. Ltd.) ;
  • Zhang Rongyong (China Nuclear Power Engineering Co. Ltd.) ;
  • Zhu Rongsheng (National Research Center of Pumps, Jiangsu University) ;
  • Fu Qiang (National Research Center of Pumps, Jiangsu University) ;
  • Wang Xiuli (National Research Center of Pumps, Jiangsu University)
  • Received : 2023.07.26
  • Accepted : 2024.02.07
  • Published : 2024.07.25
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Abstract

In this paper, the similarity criterion and dimensionless conversion method combined with the elasticity condition and Hooke's law are used to derive the functional relationship of the maximum effective value of the vibration velocity between the prototype pump and the model pump. The seawater circulation pump of a nuclear power plant is used as the prototype pump, and the model pump is obtained by performance conversion and choosing the appropriate scale, and the vibration state of the model pump under different flow rates is measured and analyzed. The vibration data of the model pump through the function relationship to find out the vibration parameters of the prototype model pump, and compare with the vibration data of the seawater circulation pump in reality. It can be seen that with the increase of flow rate, the maximum effective value of the vibration velocity of both model and prototype decreases and then increases, and the relative error is small, the maximum value is 7.7757%. Therefore, it can be considered that the functional relationship of model pump converted to prototype pump derived in this paper can be used to analyze the vibration of the actual seawater circulation pump of coastal nuclear power plant.

Keywords

Acknowledgement

The authors would like to acknowledge the financial support given by the National Natural Science Foundation of China (U20A20292).

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