[1]林博群,沈炯,李益国,等.面向锅炉燃烧优化的炉膛动态建模[J].东南大学学报(自然科学版),2015,45(5):903-909.[doi:10.3969/j.issn.1001-0505.2015.05.015]
 Lin Boqun,Shen Jiong,Li Yiguo,et al.Dynamic modeling for combustion optimization of coal-fired boiler furnace[J].Journal of Southeast University (Natural Science Edition),2015,45(5):903-909.[doi:10.3969/j.issn.1001-0505.2015.05.015]
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面向锅炉燃烧优化的炉膛动态建模()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第5期
页码:
903-909
栏目:
能源与动力工程
出版日期:
2015-09-20

文章信息/Info

Title:
Dynamic modeling for combustion optimization of coal-fired boiler furnace
作者:
林博群沈炯李益国刘西陲吴啸
东南大学能源与环境学院, 南京 210096
Author(s):
Lin Boqun Shen Jiong Li Yiguo Liu Xichui Wu Xiao
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
集总参数法 炉膛一维模型 NOxx产生机理 燃烧优化
Keywords:
lumped parameter method one-dimensional model of furnace reaction mechanism of NOxx combustion optimization
分类号:
TK175
DOI:
10.3969/j.issn.1001-0505.2015.05.015
摘要:
为了设计炉膛燃烧动态优化控制器,提出了一种结合NOxx产生机理的锅炉炉膛一维建模方法.通过将锅炉炉膛沿高度方向进行分层,并采用集总参数法分别描述锅炉各层内的流动、燃烧、传热和NOxx生成过程,建立了能够表征锅炉燃烧特性的一维动态模型.通过对某HG220/100-10燃煤锅炉的建模仿真表明,所提出的模型能够正确反映出炉膛沿高度方向的一维温度分布及NOxx分布,并能够准确反映不同配风方式对NOxx排放的影响,以及各层风煤变化时炉膛出口处烟气温度、飞灰含碳量及NOxx浓度的动态响应特性.相比传统三维模型,所建模型形式简单、计算量小,对于锅炉燃烧优化控制的设计能够起到关键的支撑作用.
Abstract:
In order to design the controller of combustion dynamic optimization, a one-dimensional dynamic modeling approach for coal-fired boiler furnace on the basis of the reaction mechanism of NOxx is developed. The furnace is first divided into several levels along the height direction. Then the lumped parameter method is employed to describe the flowing, combustion, heat transfer and NOxx reaction behavior within each level, and a one-dimensional dynamic model which can represent the coal-fired boiler furnace correctly is built. The simulation results on a HG220/100-10 coal-fired furnace show that the proposed model can reflect the distributions of one-dimensional temperature and concentration of NOxx along the height direction of furnace and the impact of air distribution modes on the NOxx exhausting. The dynamic characteristics of the temperature, the unburned carbon content and the concentration of NOxx at furnace outlet can be obtained when the flows of coal and air change. Compared with the traditional three-dimensional models, the proposed model has a simple structure and is computationally efficient. Therefore, it is fundamental and can be utilized in the controller design of the boiler combustion optimization system.

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备注/Memo

备注/Memo:
收稿日期: 2015-03-27.
作者简介: 林博群(1991—),男,硕士生;沈炯(联系人),男,博士,教授,博士生导师,shenj@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51306082,51476027)、江苏省产学研前瞻性联合研究资助项目(BY2013073-07).
引用本文: 林博群,沈炯,李益国,等.面向锅炉燃烧优化的炉膛动态建模[J].东南大学学报:自然科学版,2015,45(5):903-909. [doi:10.3969/j.issn.1001-0505.2015.05.015]
更新日期/Last Update: 2015-09-20