2×300MW级空冷机组给水泵配置浅析

Analysis on the Configuration of Water-feeding Pump in 2×300MW Air-cooling Unit

我国早期投产的空冷机组,设计人员主要集中于研究主机和空冷系统。但随着空冷电站项目的增多,空冷机组的给水泵配置问题也在各工程中突出地表现出来。通过对空冷机组给水泵配置两种不同排汽冷却方式的可行性、可靠性讨论,对其技术经济性进行了比较,指出2×300MW级空冷机组的给水泵配置选型是由多种因素决定的,给水泵的合理配置选型方案应结合其经济运行特点。

For the air-cooling unit put into the early production in China,the designers focused attention on the research on the host and air-cooling system.With the increase of the project of air-cooled power station,the configuration of waterfeeding pumps in air-cooling unit has taken on outstandingly in various works.Through the discussion on the feasibility and reliability of configuring two different exhaust cooling methods for the water-feeding pump in air-cooling unit,this paper makes comparison of the technical economy of the two different cooling methods,and points out that the configuration and selection of the water-feeding pump in 2×300 MW air-cooling unit are decided on a variety of factors,and the rational configuration and selection scheme of the water-feeding pump should be based on its economic operation features.