电站空冷系统比较及存在问题分析

Comparison and issues about air-cooling systems in power plant

空冷系统代表了未来电站冷却技术的发展方向,是"富煤少水"地区或干燥地区建设火力发电厂的最佳选择,现简要介绍了电站三种空冷系统、并对三种空冷系统进行了比较,分析了三种空冷系统运行中存在的主要问题,如机组运行防冻及渡夏等,并对此提出相应防治对策,从而有效克服空冷系统运行中出现的问题,提高机组安全经济运行水平;最后对空冷系统相关问题提出建议。

Air-cooling system is the recent trend of the power plant cooling technology; it＇s the best choice for power plant in areas which are rich in coal and poor in water or in drought areas. Three air-cooling systems in power plant were introduced in detail. A comparison was made among them in their advantages. The problems during operation and the solutions in recent years were pointed out and discussed. The main problems such as anti-freezing and summer spending were analyzed. The results showed that the operation problems of direct air-cooling system can be partially overcome and the safe and economic operation level can be upgraded by these solutions. Finally, some suggestions were proposed about the air-cooling systems.