一种百万超超临界机组二次再热汽温控制策略  

One Kind of Control Strategy on Reheat Steam Temperature of 1 000 MW Ultra Supercritical Double Reheating Unit

作　　者：严侃 侯新建 胡金伟 李林 陈仁杰 YAN Kan;HOU Xin-jian;HU Jin-wei;LI Lin;CHEN Ren-jie(Eest China Electric Power Design Institute Co.Ltd.of CPECC,Shanghai 200063,China)

机构地区：[1]中国电力工程顾问集团华东电力设计有限公司

出　　处：《电力勘测设计》2019年第8期52-55,共4页Electric Power Survey & Design

摘　　要：在1000MW超超临界二次再热燃煤电厂中,再热蒸汽吸热比例占全部锅炉放热量较一次再热机组有所增加,再热蒸汽温度是否接近设计参数对整台机组热经济性尤为重要。本文依托上海锅炉厂二次再热百万等级锅炉工艺设计,分析燃烧器摆动角+烟道烟气挡板控制策略对二次再热机组再热蒸汽温度调节的作用。In scale of the entire thermal output of the boiler,the heat absorption's proportion of the reheat steam is larger in double reheating unit if comparing with single reheating unit.Controlling the temperature of reheat steam is very important for the thermal efficiency of the unit.In this paper,with a 1000 MW ultra supercritical double reheat boiler project by shanghai boiler manufacturer,one kind of control strategy for adjusting the reheat steam temperature is introduced.The control strategy composed by changing the angle of burner nozzle and controling the opening of flue gas damper.

关 键 词：超超临界 二次再热 燃烧器摆动角 烟气挡板开度 再汽温调节 

分 类 号：TM621[电气工程—电力系统及自动化]