600MW超临界汽轮机低压缸胀差偏大问题的控制策略  

Control Strategy of Large Expansion Difference of 600MW Supercritical Turbine Low Pressure Cylinder

作　　者：黄金超 Huang Jin-chao

机构地区：[1]福建大唐国际宁德发电有限责任公司,福建福安355006

出　　处：《电力系统装备》2021年第2期92-93,共2页Electric Power System Equipment

摘　　要：某电厂600 MW机组超临界汽轮机启动运行中低压缸胀差偏高,分析汽轮机相关参数变化,发现主要原因是低压轴封供汽温度控制效果差。通过改造控制系统降低了汽轮机低压缸胀差偏大问题。The expansion difference of low pressure cylinder is high in the start-up operation of supercritical turbine of 600 MW unit in a power plant.The main reason is the poor control effect of low pressure shaft seal steam supply temperature.The problem of large expansion difference of low pressure cylinder of steam turbine is reduced by reforming the control system.

关 键 词：600 WM超临界汽轮机 低压缸 胀差 

分 类 号：TM76[电气工程—电力系统及自动化]