HIGH TEMPERATURE SUBCRITICAL BOILER WITH STEAM COOLED TOP FURNACE

摘要

The present invention relates to a boiler in which the furnace is divided into a lower furnace and an upper furnace. the lower furnace uses water-cooled membrane walls, while the upper furnace uses steam-cooled membrane walls that act as overheating surfaces. a transition section is present between the lower furnace and the upper furnace. The boiler is a subcritical natural circulation boiler that is completely supported at the top. the lower furnace is supported through the transition section by the upper furnace.