Structure Optimization of Gas-Collecting Hood of Coal Coking Storage Tank Based on Flow Field Analysis
The gas-collecting hood is a device for gas collection.In order to investigate the influence of gas-collecting hood structure of coal coking tank on its internal flow field,the FLUENT software in computational fluid dynamics(CFD)was applied to simulate the changes of the flow field in the gas-collecting hood with the opening angles of 60 °,90 ° and 120 °,the changes of the flow field in the gas-collecting hood with the opening radians of 30 °,45 ° and 55 °,and the changes of the flow field in the gas-collecting hood with the pressure diffuser hood heights of 50 mm,100 mm and 150 mm.The results show that the internal flow field of the gas-collecting hood with the opening form of arc shape,the opening radians of 45 ° and the pressure diffuser hood heights of 100 mm are more uniform,which has a smaller outlet speed and less air quantity.According to the analysis of the internal flow field characteristics of different opening angles,different opening radians and the installation of different heights,it indicates that through changing the opening form and installing the diffuser hood with appropriate height can greatly reduce the air quantity of the gas-collecting hood.
gas-collecting hoodnumerical simulationflow field analysisstructural optimizationair quantity
万方数据
维普
