大型空冷机组直接空冷系统的冻结原因及防冻措施  

CAUSES OF FREEZING IN DIRECT AIR COOLING SYSTEM FOR LARGE-SCALE AIR COOLING UNITS AND FREEZE-PREVENTING MEASURS THEREOF

作　　者：李军[1] 

机构地区：[1]山东电力研究院,山东济南250002

出　　处：《热力发电》2008年第5期58-60,63,共4页Thermal Power Generation

摘　　要：结合华电灵武发电有限公司空冷机组的实际情况,对直接空冷系统在严寒环境下出现的冻裂问题进行了分析,提出了防治冻裂的对策。通过改进空冷岛结构,优化运行过程中不同环境条件下的风量调节等措施,可有效克服直接空冷系统运行中出现的冻结问题,从而提高空冷机组安全经济运行水平。Combined with real situation of air cooling units in Huadian Ningxia Lingwu Power Generation Co Ltd, the frost- cracking problem occurred in direct air cooling system under severe cold circumstances has been analysed, and counter measures for preventing frost- cracking being put forward. Through measures,such as retrofitting the structure of air cooling island,and adopting adjustment of the air flow rate under different environmental conditions in operation - optimizing process, the freezing problem occurred in operation of direct air cooling system can be effectively eliminated, thereby, the safe and economic operation level of air cooling units being enhanced.

关 键 词：空冷机组 直接空冷系统 空冷凝汽器 空冷岛 冻裂 防冻 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]