混烧高炉煤气的火电机组热力系统建模与仿真分析  

MODELLING AND EMULATION ANALYSIS OF UNITS MIXEDLY BURNING BLAST FURNACE GAS AND COAL IN THERMAL POWER PLANT

作　　者：张微微[1] 张会生[1] 苏明[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《热力发电》2012年第4期59-64,共6页Thermal Power Generation

摘　　要：根据某电厂350 MW机组热力系统的特点建立了热力系统仿真模型,在机组满负荷下,对锅炉燃烧煤+低热值高炉煤气工况进行的仿真结果表明,主要参数均与机组实际运行参数相符。在此基础上,针对锅炉混烧低热值煤气存在的排烟温度高等问题进行了分析,提出了适当增加空气预热器换热面积降低排烟温度、提高锅炉效率的改进措施。Based on the features of thermodynamic system for the 350 MW unit in one power plant,the emulation model for said system has been established. ReSults of emulation under condition of mixedly burning coal and blast furnace gas of low calorific value show that the main parameters tally with the actual parameters in operation of unit. On the basis of this, directing against the problems of high dis- charged flue gas temperature etc. existing in mixedly burning, analysis has been carried out, and im- provement measure of suitably increasing the heat exchange area of air preheater has been put for- ward,so as to reduce the discharged flue gas temperature and enhance the boiler effciency.

关 键 词：火电机组 热力系统 模块化建模 EASY5仿真软件 高炉煤气 锅炉效率 

分 类 号：TM611[电气工程—电力系统及自动化] TP15[自动化与计算机技术—控制理论与控制工程]