PINWHEEL-SHAPED FLUIDIZING AIR NOZZLE FOR CIRCULATED FLUIDIZED-BED BOILER

摘要

PURPOSE: A pinwheel-shaped fluidizing air nozzle for a circulated fluidized-bed boiler is provided to improve combustion efficiency and reduce the loss of pressure in the nozzle. CONSTITUTION: A pinwheel-shaped fluidizing air nozzle is composed of an inner case(4), an outer case(2) for covering the upper part of the inner case, and a plurality of pinwheel-shaped nozzle wings(5) connecting the sides of the inner and outer cases. The nozzle wings are communicated with the inner and outer cases.