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	循环流化床锅炉燃烧系统的动态特性研究
	马素霞 ; 杨献勇 ; MA Su-xia ; YANG Xian-yong
	2010-06-08 ; 2010-06-08
关键词	热能动力工程 循环床锅炉 燃烧系统 动态特性 thermal power engineering circulating fluidized bed boiler combustion system dynamic behavior TK224
其他题名	Study on Dynamic Behavior of the Combustion System of a Circulating Fluidized Bed Boiler
中文摘要	依据于大量变工况试验所获得的75t/h循环流化床锅炉固体物料浓度沿炉膛高度的分布曲线,在分析不同负荷下各流动区域出口固体物料浓度及其平均固体物料浓度随运行主导因素(运行风速)变化规律的基础上,建立了数学模型并研究循环流化床锅炉燃烧系统的动态特性,仿真研究了主蒸汽压力、床温、炉膛出口烟气含氧量、料层差压随给煤量、一次风量、二次风量、排渣率及燃烧率的阶跃响应,其结果和试验及相关研究成果基本一致。同时仿真研究了主蒸汽压力随汽机调门开度的阶跃响应。文中给出了可用于控制系统设计的燃烧系统的传递函数阵,分析了影响动态特性的因素,为循环流化床锅炉燃烧系统的控制策略研究建立了平台。; According to the profile of the solid suspension density along the height of the furnace which was obtained by many hot test measurement in different operating mode,and on the basis of the correlations between the exit suspension density of each zone and the dominant operating factor of CFB boiler,as well as the correlations between average suspension density of each zone and the dominant operating factor of CFB boiler,a mathematical model is developed to study the dynamic behavior of the combustion system,through simulation,this paper works out follow responses :Material bed temperature responses,main steam pressure responses,flue-gas oxygen concentration responses and material bed pressure drop to step changes in fuel feed rate,to step changes in primary air feed rate,to step changes in secondary air feed rate,to step changes in ash removal rate and to step changes in combustion rate,some of these achieved responses fit well with the corresponding experimental results,and also main steam pressure response to step change in opening of the turbine control valve is simulated.Furthermore,a transfer function matrix is presented which can be used in the design of control system for the combustion system of a CFBC,the factors affecting the dynamic behavior has been discussed,this paper establish a platform for the study on the control strategy of combustion system of the CFBC boiler.; 国家自然科学基金项目(50323002)~~
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/49998]
专题	清华大学
推荐引用方式 GB/T 7714	马素霞,杨献勇,MA Su-xia,等. 循环流化床锅炉燃烧系统的动态特性研究[J],2010, 2010.
APA	马素霞,杨献勇,MA Su-xia,&YANG Xian-yong.(2010).循环流化床锅炉燃烧系统的动态特性研究..
MLA	马素霞,et al."循环流化床锅炉燃烧系统的动态特性研究".(2010).

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