The phenomenon of high temperature corrosion of water wall was found during the maintenance of a 600MW subcritical unit,which was analyzed to be due to the poor combustion organization in the furnace,resulting in flame brushing,anoxia in the main combustion area and reducing atmosphere,and the main cause of high temperature corrosion of water wall was mixed with high sulfur coal.The causes of high temperature corrosion of water wall are analyzed through field inspection,pipe surface inspection and measurement,laboratory inspection and so on,and the solutions are put forward to provide reference for the treatment of high temperature corrosion of water wall of coal-fired units.
flame brush wallhigh-sulfur coalwater wallhigh temperature corrosion
维普
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