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    • 9. 发明公开
    • Boiler
    • 凯塞尔
    • EP2669576A2
    • 2013-12-04
    • EP13169761.7
    • 2013-05-29
    • Hitachi Ltd.
    • Handa, MasatoHayashi, YoshiharuShibata, Tsuyoshi
    • F23L15/00
    • F23L15/04F23D1/005F23K1/00F23L9/00F23L15/00F23N3/002Y02E20/348
    • A boiler (1), in which the secondary air temperature can be efficiently increased for higher thermal efficiency by appropriately reducing the heat transfer area of the boiler while maintaining the heat collection of steam in the whole boiler, is disclosed. In the boiler, a heat exchanger (16, 17) provided in one of two flow paths formed by partitioning a downstream portion of a flow path for exhaust gas discharged from a furnace (23) has a smaller total heat transfer area than a heat exchanger (20) provided in the other of the two flow paths; the exhaust gases discharged from the flow paths to outside the boiler (1) are introduced, without being mixed, into an air heater (2) downstream of the boiler (1); and, in the air heater (2), the heat of the exhaust gases is transferred to the primary air and the secondary air so as to heat combustion air.
    • 公开了一种锅炉(1),其中通过在保持整个锅炉内的蒸汽的热收集的同时适当地减小锅炉的传热面积,可以有效地提高二次空气温度以获得更高的热效率。 在锅炉中,设置在通过分隔从炉(23)排出的废气的流路的下游部分形成的两个流路之一中的热交换器(16,17)的传热面积小于热交换器 (20),设置在所述两个流路中的另一个中; 将从所述流路排出的废气排放到所述锅炉(1)的外部,而不混入所述锅炉(1)下游的空气加热器(2)。 并且在空气加热器(2)中,排气的热量被传递到一次空气和二次空气中以加热燃烧空气。