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In this paper, in engineering practice, the computational fluid dynamics method was adopted to study the dynamic characteristics of the spring-loaded pressure relief valve. The effects of different parameters on the dynamic performance were investigated by CFD simulation. In the simulation, the damping coefficient has little influence on the discharge time and reseating pressure of the relief valve. With the decrease of spring stiffness, the reseating time of pressure relief valve increases, and reducing the spring stiffness can effectively reduce the reseating pressure. The reseating pressure decreases with the rise in the distance between the upper adjusting ring and the sealing face. This simulation results can provide a reference for the design and optimization of the structural parameters of the spring-loaded pressure relief valve.

Numerical Simulation and Analysis of the dynamic Behaviours on the Spring-loaded Pressure Relief Valve