循环流化床锅炉燃烧系统参数关系特性分析  

Study on parameters coupling characteristics of combustion regulation circulating fluidized bed boiler

作　　者：孔垂茂[1] 赵斌[2] 王松岭[1] 李均昊[2] 武志飞[2] 马玉芹[2] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,河北保定071003 [2]河北联合大学冶金与能源学院,河北唐山063009

出　　处：《华北电力大学学报（自然科学版）》2011年第3期78-82,共5页Journal of North China Electric Power University：Natural Science Edition

基　　金：2010年河北省唐山市科学技术研究与发展计划项目(10110209c)

摘　　要：循环流化床锅炉机组普遍存在燃烧调整难、稳定性差等问题。为了寻求更为优越的CFB锅炉燃烧控制手段,通过对唐山市开滦东方电厂490 t.h-1CFB锅炉变工况的数据采集及处理,分析了变工况条件下给煤量、床温、一二次风配比和烟气含氧量等燃烧系统参数与机组负荷的关系,并引入组合参数单位负荷风量,降低了各参数耦合分析难度。研究表明:对CFB锅炉燃烧系统参数进行关联分析,有助于CFB锅炉燃烧系统自动控制的工业化。Circulating fluidized bed（CFB） boiler generally has the problems that its combusion has poor stability and is difficult to be adjusted.In order to seek for better combustion control,we acquisite and process the data from KaiLuan Dongfang power plant 490t·h-1CFB boiler unit,analyze the correlation between the unit load and the parameters such as the coal content,bed temperature,a secondary air ratio,the pressure of water-cooling chamber and the oxygen content in the gas under variable conditions,and bring in unit-load air volume to abate the difficulty in coupling analysis.The research shows that the correlative analysis on CFB boiler combustion system can contribute to industrializing the automatic control of CFB boiler combustion system.

关 键 词：循环流化床锅炉 燃烧系统 变工况 单位负荷风量 参数关联 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]