Numerical Simulation Optimization and Experimental Study of Vacuum Ultraviolet Solution Equipment Based on CFD Technology

Abstract In order to improve the photo-degradation efficiency of waste gas and the utilization rate of ultraviolet lamp, numerical simulation software was used to simulate the wind speed field in ultraviolet equipment. The simulation of uniform and dislocation arrangement of ultraviolet lamp in ultraviolet equipment, taper of variable diameter of equipment, transverse flow and cis flow of ultraviolet equipment is presented. The results show that the gas flow in the equipment is more uniform than that in the ultraviolet lamp. The reducing taper of ultraviolet equipment becomes smaller, and the gas retention area gradually becomes smaller. When the reducing taper is reduced to 30°, it is most suitable. The wind speed field in the downstream ultraviolet equipment is more uniform than that in the horizontal flow type, and the ultraviolet utilization rate is higher. In addition, the tubular downstream ultraviolet equipment can not only ensure the utilization rate of ultraviolet lamp, but also improve the degradation effect of organic waste gas.