EXPERIMENTAL STUDY OF GAS SOLID FLOW CHARACTERISTICS IN CYCLONE INLET DUCTS OF A 300MWE CFB BOILER
Gas solid flow characteristics in cyclone’s inlet duct of a 300MW CFB boiler were studied in a cold circulating fluidized bed (CFB) experimental setup according to a 410t/h CFB boiler with a scale of 10:1. Tracer particles were adopted in the experiment and their motion trajectories in the two kinds of cyclone’s inlet ducts were photographed by a high-speed camera. By analyzing the motion trajectories of tracer particles, acceleration performance of particle phases in the two inlet ducts was obtained. Results indicate that the acceleration performance of particles in the long inlet duct is better than that in the short inlet duct, but the pressure drop of the long inlet duct is higher. Meanwhile, under the same operating conditions, both the separation efficiency and the pressure drop of the cyclone are higher when the cyclone is connected with the long inlet duct. Figs 11, Tabs 4 and refs 10.
power and mechanical engineering cyclone’s inlet ducts gas solid flow characteristics performance of cyclone
J.Y.Tang X.F.Lu J.Lai H.Z.Liu
College of Power Engineering ，Chongqing University, Chongqing, 400044, China Dongfang Boiler Industry Group Co.Ltd., Zigong, 643001, China
国际会议
第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)
西安
英文
386-392
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）