循环流化床锅炉中灰循环倍率与炉膛传热系数

The Ash Circulating Ratio in CFB Boiler and the Heat Transfer Coefficient for Furnace

循环流化床锅炉中灰循环倍率不仅影响燃烧 ,而且还影响传热。炉膛传热系数是其热力计算的关键数据 ,根据现场测得的数据 ,并参照有关文献 ,提出了一个经验计算公式 。

The ash circulating ratio in CFB boiler has an effect not only on combustion but also on heat transfer. The heat transfer coefficient for furnace is the key datum of its thermal calculation. This paper proposes a calculating empiric formula of heat transfer coefficient for furnace, based on the measured data in site and references. It has been demonstrated to be true on several CFB boilers.