PERFORMANCE IMPROVEMENT OF 235 MWe AND 260 MWe CIRCULATING FLUIDIZED BED BOILERS
This article presents the results of studies on the operational performance of the first 235 MWe with hot cyclones and 260 MWe second-generation Compact circulating fluidised bed (CFB) boiler installed as part of the repowering of the Turow power plant in Poland with close to 1,500 MWe of new capacity based on CFB technology. The main characteristic distinguishing the second generation type of boiler is the use of an integrated solids separator rather than an external cyclone. The analysis of flue gas emissions showed that the standards relating to permissible concentrations of pollutants such as SO2, Nox, and CO, have been met. SO2 levels have ranged from 157 mg/mn 3 to 400 mg/mn 3, levels of Nox from 120 mg/mn 3 to 342 mg/mn 3, and levels of CO from 7 to 45 mg/mn3. The second-generation CFB boilers at the Turow power plant represent a major advance in CFB technology at this size. Studies on actual emissions indicated that the present standard related to permissible concentration of gas emissions and dust in flue gases have been met. The paper addresses also some performance improvements of the CFB boilers. In the boilers with external cyclones, erosion problems emerged after a time of 50 thousand hours. The problems have been quite precisely diagnosed recently and will be resolved on the occasion of the nearest shutdowns for major repairs.
CFB boiler Second generation Compact CFB
W.Nowak R.Walkowiak T.Ozimowski J.Jablonski T.Trybala S
Czestochowa University of Technology, Poland PGE Elektrownia “TurowS.A., Poland
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
151-156
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）