凝汽器空冷区铜管氨腐蚀过程分析与防护措施  

Analysis of ammonia corrosion process of copper tubes in the air removal section of condenser and preventive measures

作　　者：朱志平[1] 杨道武[1] 李宇春[1] 

机构地区：[1]长沙电力学院,湖南长沙410077

出　　处：《中国电力》2002年第5期23-26,共4页Electric Power

基　　金：湖南省自然科学基金资助项目(01JJY3027)

摘　　要：由于氨的聚集与氧的存在,在凝汽器空冷区出现过冷度的情况下,铜管的氨腐蚀是不可避免的。文章分析、计算在机组正常水工况下,凝汽器空冷区凝结水中可能出现的氨浓度,并对氨腐蚀过程与影响因素进行探讨,提出防护建议。Ammonia corrosion of condenser copper tubes in the air removal section cannot be avoided as a result of ammonia collection and existence under super cooling condition.The paper analyzes and calculate s the possible ammonia concentration of condensate in the air removal section of condenser under the normal water working condition,approaches the ammonia corrosion process and influencing factors and finally puts forward the preventive measures.

关 键 词：凝汽器 空冷区 铜管 氨腐蚀 防护措施 汽轮机 

分 类 号：TM621.8[电气工程—电力系统及自动化]