| 摘要 |
Evaporator surface structure of a circulating fluidized bed boiler, comprising at least one separate vertical evaporator surface unit arranged within a distance from the furnace walls, formed of water tube panels, extending from the bottom of the furnace of the circulating fluidized bed boiler to the ceiling thereof, the evaporator surface unit consisting of two cross-wise joined vertical water tube panels. Preferably, a first water tube panel of each evaporator surface unit is parallel to the water tubes of the furnace ceiling and a second water tube panel is perpendicular to that. The upper ends of the water tubes of each water tube panel are preferably connected to separate headers parallel with the water tube panels, and the water tube panels are advantageously suspended to hang of the headers in such a way that each evaporator surface unit is connected to the ceiling of the furnace by a structure enabling vertical movement between the evaporator surface unit and the ceiling. |
