海勒式间接空冷系统事故分析及处理

Analysis on reason of accident of Heller indirect air-cooling system and treatment

以某电厂660 MW间接空冷机组为例,对运行中发生的2次空冷系统事故进行了分析,论述了间接空冷系统的运行特性及注意事项,给出了间接空冷系统发生循环泵跳闸及循环水断水时应采取的措施,提高了机组运行的安全性。

Taking the 660 MW indirect air-cooled unit in a power plant as an example,the two accidents of air-cooling system occurred in system operation were analyzed.The operation characteristics and matters needing attention of the indirect air-cooling system were expounded.The measures were given when the circulating pump of the indirect air-cooling system had tripped or the circulating water had been cut off,and the safety of the unit operation was improved.