NOVEL CFB BOILER TECHNOLOGY WITH RECONSTRUCTION OF ITS FLUIDIZATION STATE
Compared with a conventional pulverized coal fired boiler, the combustion efficiency of a CFB boiler is lower while the self-consumed service power is 1-2％ higher. The solution of these problems is the key research topic for researchers and manufacturers of CFB boilers. Based on the State Specification Design Theory of CFB boilers, Tsinghua University proposed a novel CFB technology by reconstruction of the fluidization state in the furnace by adjusting the bed inventory and bed quality. Theoretical analyses show that there is an optimal bed pressure drop, around which the boiler operation can achieve the maximal combustion efficiency and with significant reduction of the wear of the heating surface and fan power consumption. The proposed novel process was implemented in a 75t/h CFB boiler. The results of field tests on this boiler validated the theoretical analyses.
CFB boiler optimization fluidization reconstruction State Specification
H.R.Yang H.Zhang J.F.Lu Q.Liu Y.X.Wu G.X.Yue J.SU Z.P.Fu
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Department of Ther Taiyuan Boiler Group Co.Ltd, Taiyuan, 030021, China Shanxi Lishi Datuhe Heat & Power Cogeneration, Lishi, 033000, 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
195-199
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）