中国电机工程学报Issue(20)：1-7,7.
大型CFB锅炉床压横向波动的机制研究
Mechanism Study of Lateral Bed Pressure Wave of Large Scale CFB Boilers
摘要
Abstract
When large-scale circulating fluidized bed (CFB) boiler working under low load condition, severe lateral bed pressure wave often occurs and poses a serious threat to boiler stability and safety. In order to further analyze lateral bed pressure wave, testing works were carried out on two 300MW sub-critical CFB boilers. Under 50%percent load of the boiler, severe periodical pressure fluctuation happened. The periodical pressure fluctuations were over 5kPa and 11kPa, with a cycle of 83s and 116s respectively. From the test result, the external circle loops are not to be considered as the reason of lateral bed pressure wave. Based on the theory of air-bed system resonance, a large scale gas-solid flow self-fluctuation model was proposed. The model results are basically consistent with experiment data. Fluidization reconstruction and pipe modification will avoid lateral bed pressure wave.关键词
大型循环流化床锅炉/床压横向波动/共振/流态重构Key words
large-scale circulating fluidized bed (CFB) boiler/lateral bed pressure wave/resonance/fluidization reconstruction分类
能源科技引用本文复制引用
..大型CFB锅炉床压横向波动的机制研究[J].中国电机工程学报,2013,(20):1-7,7.基金项目
国家科技支撑计划项目(2012BAA02B01)。 （2012BAA02B01）
