干湿联合冷却系统在直接空冷机组电厂的应用

Application of dry-wet incorporated cooling system in direct air-cooled unit

随着空冷凝汽器管束结垢现象的日益严重,机组运行背压已远远高于设计值,机组被迫降负荷运行。干湿联合冷却系统可以降低机组运行背压,提高夏季带负荷能力。针对这一技术,介绍了干湿联合冷却系统在某2×600 MW直接空冷机组中的应用,分析了其实施效果,认为该技术安全及经济性良好,具有广泛推广价值。

With more and more serious air-cooled condenser bundle deposition,unit operation backpressure is much higher than design value,and has to operate in lower load. Dry-wet incorporated cooling system is able to lower operation backpressure and increase load capacity in summer. The application of dry-wet incorporated cooling in a 2 × 600 MW direct-cooled unit was introduced and analyzed. The author indicated this technology has well economic efficiency and worth widespread.