The numerical simulation of flow field characteristics for single vortex column in different shapes

[摘要] The coagulation technology of turbulence can improve the PM2.5 removal efficiency of ESP effectively, which is a hot technology researched by the scholars and manufacture. The turbulence produced by vortex column is the main power supply in the turbulence coagulation device, the velocity distribution, turbulence intensity, turbulence viscosity and pressure loss of single vortex column in different shapes and sizes were calculated in this paper. The turbulence produced by angle-steel had a better velocity and character than cylindrical vortex, and if the size of angle-steel and cylindrical vortex was bigge, the turbulence effect of the flow field would become better, but the pressure loss of different shapes would increase. We need to ensure the turbulence effect as well as minimize unnecessary pressure loss in practical applications.

[发布机构] Zhejiang Zheneng Wenzhou Power Plant Co. Ltd., Zhejiang Leqing; 325602, China^1;Feida Environmental Protection Technology Co. Ltd., Zhejiang Zhuji; 311800, China^2

[效力级别] 生态环境科学

[关键词] Different shapes;Flow field characteristics;Power supply;Pressure loss;Removal efficiencies;Single vortices;Turbulence effect;Turbulence intensity