Structural Analysis and Optimization of Urban Gas Pressure Regulator Based on Thermo-Hydro-Mechanical Coupling

As a core component in the gas transmission process, internal wall surface of pressure regulator is prone to failure due long-term exposure high-pressure environment, resulting poor reliability regulator. Thus, thermo-hydro-mechanical coupling model for FL established this paper, and results are verified by engineering data. The effect valve opening on parameters (temperature, deformation, stress) studied detail through simulation. show that stress greater at sleeve, bore, outlet seat under 20% Finally, response method used optimize obtain good fit high predictive ability equation. optimal as follows: thickness sleeve 7.25 mm, diameter bore 25 31.05 mm. maximum equivalent with combination 135.62 MPa.