摘要
2006年11月，莱城发电厂4×300MW机组循环水泵自高速切换低速运行后，经对比发现1号机组凝汽器真空偏低约1．5kPa，凝汽器循环水进水温度高4℃～5℃，导致机组煤耗率增加约3．11g／（kw·h），经济性显著降低。经过原因分析及处理，消除了真空下降后，提高了1号机组运行的经济性。
After switching over the circulating - water pump of 4 × 300 MW units in Laicheng Power Plant from high speed to low speed operation in November, 2006, it had been discovered from comparison that the condenser＇s vacuum of unit no. 1 was somewhat lower than about 1.5 kPa, the inlet water temperature of the circulating - water pump was 4℃-5℃ higher, leading to the coal consumption ratio of said unit being increased by about 3. 18 g/（kW · h）, the economic efficiency being obviously lowered. Through cause analysis and remedy, the economic efficiency in operation of unit no. 1 has been improved after eliminating the vacuum drop.
出处
《热力发电》
CAS
北大核心
2008年第3期83-84,90,共3页
Thermal Power Generation
关键词
300
MW机组
冷却塔
真空
循环水泵
节能
凝汽器
300 MW unit
cooling tower
vacuum
circulating- water pump
energy- saving
condenser.
