ANALYSIS ON CAUSES LEADING TO WALL-TEMPERATURE FLUCTUATION OF THE WATER-WALL TUBES[J]. Thermal power generation, 2001, (2): 15-17. DOI: 10.19666/j.rlfd.2001.02.005.
The wall-temperature fluctuation of water-wall tubes is one of the important causes for transverse-cracking failure of water-wall tubes.Temperature measuring on the water-wall of HG 2008 and SG1000 boilers was carried out.Based on the results of temperature messuring and analysis on heat transfer in the boiler and furnace
different causes of wall-temperature fluctuation are proposed.For HG2008 boiler
the main cause was the shedding of unstable slag
whereas for SG1000 boiler the heat transfer deterioration due to dried-up evaporation in the tube was the main cause.