300MW四角切圆煤粉锅炉低氮燃烧的数值模拟研究  

Numerical Simulation Study of Low NO_x Emissions Combustion in a 300 MW Tangentially Fired Boiler

作　　者：黄文静[1] 缪正清[1] 王次成[2] 李江涛[3] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海发电设备成套设计研究院,上海200240 [3]上海锅炉有限公司,上海200245

出　　处：《锅炉技术》2014年第3期39-43,共5页Boiler Technology

摘　　要：利用某商业软件对300 MW四角切圆煤粉锅炉炉内流动、传热、燃烧及污染物生成进行了模拟,预测了在现有常规燃烧器与燃烧器在多种改进条件下(主要为不同低位燃尽风率及高位燃尽风的布置高度等)炉内的NO_x生成情况。模拟结果表明:低位燃尽风率对NO_x的生成有一定的影响;高位燃尽风布置高度对NO_x生成特性有很大影响,随高位燃尽风高度的增大,NO_x整体排放水平和峰值都大幅下降,但高位燃尽风布置高度存在一个最佳值。The flow field,h 300 MW tangentially fired software. NOx formation i different BAGP proportion eat transfer, combustion process and the pollutant formation of a boiler was simulated in five different cases using a commercial n conventional burner and six improved conditions （mainly for and UAGP height） is predicted. The simulation results show that ; great peak BAGP proportion has a certain influence on the NOx formation. The UAGP height has impact on NOx formation. With the UAGP height increases, the overall emissions and value of NOx decrease. The UAGP height has a optimum value.

关 键 词：300 MW四角切圆锅炉 数值模拟 NOX排放 低位燃尽风 高位燃尽风 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]