600MW超临界直流锅炉启动系统仿真研究  

Simulation Analysis of 600MW Supercritical One-Through Boiler's Start-up System

作　　者：杨晨[1] 张磊[1] 

机构地区：[1]重庆大学动力工程学院

出　　处：《计算机仿真》2014年第2期174-178,192,共6页Computer Simulation

基　　金：国家自然科学基金资助项目(50876117);中央高校基本科研业务费资助(CDJXS10141149)

摘　　要：在电站运行锅炉启动优化设计问题的研究中,直流锅炉启动系统的特殊性以及启动过程水蒸汽参数所具有的复杂性,影响系统运行的稳定性。为掌握锅炉启动系统的运行机理及特性,对600MW超临界直流锅炉的启动系统进行了仿真研究。以锅炉启动过程中最为复杂的湿干态转换阶段为研究的重点,遵循模块建模的原则,依据启动过程工质侧、烟气侧及金属蓄热的数学模型,对炉膛、水冷壁、省煤器、储液罐(汽水分离器)、储液罐水位调节阀(361阀)等对象建立动态数学模型,对启动过程(0-30%BMCR)进行了仿真,结果表明,为锅炉启动系统的优化设计和运行人员掌握启动特性提供了依据。In the study of design and optimization of boiler＇s startup system in power plant, the stability of the system is influenced by the particularity of one - through boiler＇s startup system and the complexity of the steam pa- rameters during starting up. Simulation analysis was made on 600MW supercritical one - through boiler＇s startup sys- tem to master the operating principles and characteristics. The key work in this paper was wet - dry states conversion which is the most complex period during starting up, and the model includes furnace, waterwall, economizer, reser- voir （separator） , reservoir water level control valve （valve 361 ） and ere, which follows the principle of modular modeling, according to mathematical principles in gas - side and water - side as well as heat storage in metal. Exper- iments were made to simulate the starting up, and the results of which can be used as guidance and principles for op- timization and design of one - through boiler＇s startup system.

关 键 词：超临界直流锅炉 启动系统 湿干态转换 模块化仿真建模 

分 类 号：TM391[电气工程—电机]