摘要:In order to control the dust removal and desulfurization process accurately, it is imperative to obtain theoptimal structure parameters of the valve, using CFD to simulate and forecast the flow field numericaldesign of dust removal and desulfurization of digital valve, designing the L 25 (5 6 ) orthogonal test table of valvestructure, selecting the arc radius, length, angle, width as the factors. The study determined the flowcharacteristics, the ideal digital valve of the maximum open flow coefficient and the degree of the digital valvespool inertia as the performance evaluation index of the valve, completed the orthogonal experiment andanalysed by range analysis of the results, and obtained the influence of structure parameters on the rankingoptimization direction of evaluation index, the simulation forecast data in various opening of digital valve andthe flow pressure nephogram and velocity contours of 100% relatively open. A comprehensive quality evaluationindex of the valve was made, making the multiobjective optimization problem into a single objective optimizationproblem of desulfurization dust digital valve optimization through the synthetic weighted mark method. Usingbox method to optimize the structure of desulfurization and dust removal of digital valve, we obtained theoptimal structure parameters: radius of 3.4mm, the angle of 108.05°, length of 14.07mm and width of 37.85mm.