Optimization on flame arrester sheet of explosion proof valve based on simulation analysis

LIU Hong, SHEN Shao xiang, YAN Fan

(College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China)

Abstract: Aiming at the problem that lack of theoretical guidance and the performance was mainly tested by experiments in the structural design process of flame arrester sheet, the research of structural design and optimization was provided a analysis method of simulation. The optimization model of flame arrester sheet was established by CFD and FLUENT simulation platform, flame arrester sheets dimension data of convexity width, convexity corner, convexity height were optimized and analyzed by the uniform design method, simulation data were handled by regression analysis with MATLAB, the dimension of best performance was found by scatter diagrams of total pressure and temperature at outlet. The results indicate that the numerical methods of uniform design and regression analysis are favour of data processing and multiobjective optimization, the dimension regression functions are able to gain the dimension of best performance, simulation results are basically identical with actual test results, also this flame arrester sheet can meet performance requirements of reducing pressure and extinguishing fire in the actual test process, this method is helpful to the design of flame arrester sheet.

Key words: flame arrester sheet; simulation analysis; CFD; uniform design