循环流化床锅炉布风板风帽技术改造

Technical Reformation of Nozzle Button of Air Distributor in Circulating Fluidized Bed Boiler

高坝电厂410 t/h循环流化床锅炉原"S"型风帽在煤质改变后堵塞变形严重,导致布风板流化不好,风机电耗增加,受热面磨损加剧,经过严密的论证后对风帽进行了技术改造,改善了流化状况,降低了受热面磨损,安全经济性显著。

S - type air hoods are chocked and deformed seriously because of the non - design coal burning in circulating fluidized bed （CFB） boiler （410 t/h） of Gaoba Power Plant, so it leads to a bad fluidization of air distributor, and makes the power consumption of ventilating fan increase and the wear abrasion of heating surface aggravate. After a rigorous demonstra. tion, the technical reformation of nozzle button is carried out to improve the fluidization, reduce the wear abrasion of heating surface and enhance the safe economic performance of the unit.