【摘要】 <正> 一、引言 循环流化床锅炉,作为第二代流化床燃煤热力装置,得到了国内外能源科学技术界的重视.这种装置的主要特点是:在高效率气-固分离和高倍率固体物料循环的条件下,燃烧与脱硫以及传热过程在整个燃烧室空间(炉瞠)内进行.这与传统的鼓泡流化床装置有显著的不同.探索这种装置在各种可能工况下,炉膛上部燃料的燃烧份额和炉内烟气对炉壁的传热率,以及与当地固体颗粒浓度之间的关系,对于设计和开发工业用循环流化床更多还原

【Abstract】 Enhancement of chemical reaction and heat-transfer processes in the upper space of coal-fired circulating fluidized bed combustor (CFBC) is a typical phenomenon. This particular feature other than the conventional bubbling fluidized bed combustors (BFBC) is the main cause of being superior to the latter. Some estimation of combustion share and heat-transfer coefficient in this region by interpreting experimental data with a 2.8 MWt CFBC is presented as an attempt to gain understanding of processes in CFBC and creat data base for engineering design.更多还原