汽轮机组冷态起动过程胀差变化探析  

INQUIRY-ANALYSIS OF DIFFERENTIAL EXPANSION VARYING IN THE COLD STARTING PROCESS OF STEAM TURBINES

作　　者：吴普刚 

机构地区：[1]大唐韩城第二发电有限责任公司,陕西韩城715415

出　　处：《热力发电》2007年第8期72-73,共2页Thermal Power Generation

摘　　要：结合汽轮机组胀差产生的机理对机组冷态起动过程各个阶段胀差的变化进行分析。在对机组冷态起动过程各个阶段胀差的变化充分认识的基础上,提出防止胀差异常的措施,将胀差控制在允许范围,以保障机组运行安全。Combining with the mechanism of differential expansion variation in steam turbine units, the variation of differential expansion at each stage of cold starting process for steam turbine units has been analysed, and the variation of differential expansion at each stage in cold starting process being more fully understood, and emergency measures for preventing differential expansion can be timely taken, so as to ensure safe operation of the unit.

关 键 词：汽轮机组 冷态起动 胀差 暖缸 体面比 鼓风摩擦 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]