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http://dx.doi.org/10.7842/kigas.2017.22.1.60

A Study on the Strength Safety of a Gas Valve  

Kim, Chung Kyun (Research Center for Tribology, Mechatronics and Energy Technology Hongik University)
Publication Information
Journal of the Korean Institute of Gas / v.22, no.1, 2018 , pp. 60-63 More about this Journal
Abstract
This paper presents the FEM analysis results on the strength safety of a gas valve for a LPG cylinder. Based on the FEM analysis, the maximum von Mises stress on the boundary zone between a safety valve and the upper area of the thread is 99.2 MPa for the supplied gas pressure of 3.5 MPa in which the gas valve is fully opened. The maximum von Mises stress of 99.2 MPa is considered as safety value, because that value is lower than the yield stress of a brass material. In this case, the maximum deformation at the upper right part of the pressure regulator is 0.002mm. The maximum deformation zone is not a meaning part of the sealing part such as an O-ring or a diaphragm of a gas valve and a pressure regulator. The proposed hybrid gas valve model in which is integrated with a conventional cut-off valve and a pressure regulator is recommended as a gas leakage free mechanism and minimized compact size for a LPG cylinder.
Keywords
gas valve; LPG cylinder; LPG pressure regulator; stress and displacement; FEM;
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  • Reference
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