Abstract
Two 240 t/h circulating fluidized bed (CFB) boilers are choosed as the research object, through test CFB boiler parts surface temperature, surface conditions and the parts surface area, according to the standard ASME boiler body heat loss. The results showed that special separator inlet section of CFB boiler, cyclone separator and back material valve surface area accounts for 23% of the total area of the boiler body, surface temperature and environmental temperature significantly higher than the thermal insulation good furnace, the tail flue, heat losses to about 50% of total heat loss of boiler. Keywords-circulating fluidized bed; heat loss; surface area
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