A NOZZLE FOR A CIRCULATING FLUIDIZED BED (CFB) BOILER

摘要

A nozzle for a circulating fluidized bed (CFB) boiler of the present disclosure relates to the field of mechanical engineering. The nozzle creates resistance to ingress of fine solid particles and maintains uniform air distribution therethrough. The nozzle has a body having a predetermined thickness and at least one passage configured along the thickness of the body such that, the passage extends from an inner surface of the body and terminates at an outer surface of the body. The passage facilitates the flow of a fluid from a lumen formed within the body to the outer surface of the body and vice versa. The passage has at least one bend. The bend restricts the backflow of fine solid particles through the nozzle to avoid the disturbance to the air flow pattern by the fine solid particles within the windbox.