Furnace Thermal Characteristics Research Of Circulation Fluid Bed Boiler

Taking some thermal power plant actual running data in 450t/h circulation fluid bed boiler as a foundation, established the thermal equilibrium equation separately in the boiler dense area and the thin area, and had the computation of heat transfer coefficient in dense area and the thin area of circulation fluid bed boiler. Carried on the ash balance analysis, infers the circulation percentage formula considering internal recycling. The analysis and the computation of the relationship of the heat-transfer character to windâ… , to circulation percentage and to furnace pressure difference has carried on. With the computation process and result, carried on the analysis research on some questions such as the thin area system blackness, circulation ash characteristic, the upper surface radiation characteristic in the dense area and so on. Analyzed the influence of the coal changing and so on certain factors to the CFB boiler operation and heat-transfer in stove, and summarized the CFB boiler operation characteristic, and the key summary of the problems in the operating was made , and referred for the operating practice.