大机组给水泵汽轮机排汽引入冷却装置热经济性分析  

Economic Analysis of Installing a Cooling Device at the End of the Exhaust Steam Pipeline of Feed Water Pump Turbin of Big Unit

作　　者：高江玲[1] 王玮[2] 孙会亮[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]华北电力科学研究院有限责任公司,北京100045

出　　处：《电力科学与工程》2012年第11期62-65,70,共5页Electric Power Science and Engineering

摘　　要：根据600 MW湿冷机组的热力系统连接特点,提出在给水泵汽轮机的排汽管道末端加装冷却装置的技术设想。运用等效热降法计算,对机组加装冷却装置前后的热经济性进行了对比分析。结果表明,在给水泵汽轮机排汽管道末端加装冷却装置,可以提高凝汽器真空,减少凝汽器的热负荷,使机组供电量增加。According to connection characteristics of the thermal system of the 600MW wet cooling unite, it puts forward a technical project that installing a cooling device at the end of the exhaust steam pipeline of feed water pump turbine. Applying Equivalent heat drop method to make a comparative analysis of the unite. The results show that this project can improve the condenser vacuum, reduce condenser heat load and make the unit supply increased.

关 键 词：给水泵汽轮机 冷却装置 等效热降法 热经济性 

分 类 号：TK16[动力工程及工程热物理—热能工程]