中国电力2012，Vol.45Issue(10)：36-41,6.
循环流化床一、二次风管网特性及风机选型研究
Study on Pipeline Characteristics and Selection of Primary and Secondary Air Fans for CFB Boilers
摘要
Abstract
Through analyzing the pipeline characteristics of the primary air and secondary air on circulating fluidized bed (CFB) along with several operating data from commercial CFB boilers, the selection principles of primary air fan and secondary air fan are studied. The results indicate that the maximum air flow and maximum pressure head of the primary air of a CFB boiler are not at the same operating point, forming a pipeline characteristic completely different from that of a pulverized coal boiler. The pipeline characteristic of the secondary air of a CFB boiler is similar to that of a pulverized coal boiler, but with the pressure drop produced by the particle concentration in the furnace added to the system resistance. When a primary air fan is selected for CFB boilers, the pipeline characteristic curve should be entirely included by the fan performance curve, and inlet guide vane adjustment or variable speed adjustment of lower energy consumption should be adopted. The selection principle of the secondary air fan for the CFB boiler is similar to that of the centrifugal fan with the pressure drop caused by bed materials beingestimated. For 300-MW CFB units, the pressure drop is usually between 5.5 kPa and 7.5 kPa.关键词
火电厂/循环流化床/管网特性/风机选型Key words
thermal power plant/ circulating fluidized bed/ pipeline characteristic/ selection principle分类
能源科技引用本文复制引用
王泉海,卢啸风,鲁佳易,张文清,辛胜伟,刘昌旭,李林..循环流化床一、二次风管网特性及风机选型研究[J].中国电力,2012,45(10):36-41,6.基金项目
教育部留学回国人员启动基金资助项目 （）
高等学校博士学科点专项科研基金资助项目(20100191120017) （20100191120017）
重庆市科委科技计划攻关一般项目(CSTC2011BA4068) （CSTC2011BA4068）
