Journal of Applied Science and Engineering

Published by Tamkang University Press


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Shuxun Li1,2, Xuedong Zhang1,2 , Yunxin Kang3, Jianjun Hou1,2, and Jingwei Liu1,2

1School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2 Mechanical industry pump and special valve Engineering Research Center, Lanzhou 730050, China
3 210 Institute of the Sixth Academy of CASIC, Xi’an 710000, China


Received: September 19, 2022
Accepted: March 3, 2023
Publication Date: May 2, 2023

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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To investigate the noise radiation in the leakage of the safety valve. The acoustic fluid-solid coupling simulation analysis of the leakage process of the safety valve is used to study the flow field when the safety valve is leaking. The sound source characteristics of different inlet pressures and different leakage holes when the internal leakage of the safety valve occurs are analyzed, and the noise source is analyzed in combination with the flow field simulation. The results show that when the internal leakage of the safety valve occurs, the noise is mainly dominated by the quadrupole sound source caused by the jet, accompanied by the dipole sound source. At the same time, the noise sound pressure level is positively correlated with the working medium pressure of the safety valve and is quadratically correlated with the inner leakage hole.

Keywords: Safety valve; Internal leakage noise; Numerical simulation; Acoustic characteristics; Acoustic-fluid-solid coupling

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