300MW热-电联供机组抽汽方式选型及结构特点  

Steam Extraction Mode Selection and Structural Features of a 300 MW Heat Supply Unit

作　　者：张学凯 

机构地区：[1]中国电能成套设备有限公司,北京100011

出　　处：《发电设备》2013年第1期1-4,共4页Power Equipment

摘　　要：300MW级机组以其具有的热电比高、技术成熟、可靠性好等优点,成为热电联产机组的主流机型。针对热电联产机组的选型问题,提出选取适当的抽汽调节方式是首要问题,以渤海项目为例,介绍了回热抽汽管道开孔抽汽、从高温再热管道上开孔抽汽、压力匹配器、旋转隔板、座缸阀等几种抽汽方式各自的特点以及如何选型。The 300 MW unit has become the mainstream type of power and heat cogeneration unit due to its advantages of high ratio of heat to electricity, mature technology, good reliability, etc. Aiming at model selection of power and heat cogeneration units, it is proposed that the first question is to select a proper steam extraction mode. Taking the Bohai Project as an example, selection and features of several steam extraction modes are introduced, including steam extraction by openings on regenerative steam extraction pipeline, by openings on high-temperature reheating pipeline, and from pressure matcher, rotary diaphragm, base cylinder valve, etc.

关 键 词：汽轮机 热电联产 工业抽汽 旋转隔板 座缸阀 

分 类 号：TK269.2[动力工程及工程热物理—动力机械及工程]