COMPUTATIONAL MODELING OF EROSION WEAR OF THE FISHER V500 CONTROL VALVE OF THE SLURRY SUPPLY LINE OF THE CATALYTIC CRACKING FACILITY OF OIL RESIDUES

Abstract

Erosion of the internal surfaces of pipelines and shut-off valves used in oil production is a very dangerous phenomenon. It occurs as a result of the impact on the metal of mechanical impurities contained in the working environment. Erosion often occurs together with corrosion. The type of destruction under the influence of mechanical impurities is determined by the fluid flow rate, and the intensity and rate of erosion depends on the concentration and composition of mechanical impurities. Solving the problem of effectively determining the degree of adverse environmental impact depending on various parameters requires the development of new approaches, such as modeling. Modeling of hydrodynamics to determine critical flow rates and calculation of expected zones and erosion rates is due to the importance of solving the problem of anti-erosion protection. In this paper, CFD modeling of hydrodynamics and erosive wear of the control valve of the suspension line of the catalytic cracking unit is performed in the ANSYS Fluent software package. The flow velocities are calculated, and the areas affected by critical velocities at which corrosion erosion occurs are also shown. The effect of density and content of mechanical impurities on the erosion rate is shown.