铁素体及铜合金汽封在300MW汽轮机上的应用  

APPLICATION OF FERRITIC AND COPPER-ALLOY STEAM SEAL GLANDS ON 300 MW STEAM TURBINES

作　　者：皇甫亚飞[1] 胡念苏[1] 刘爱忠 

机构地区：[1]武汉大学,湖北武汉410072 [2]襄樊发电有限责任公司,湖北襄樊441000

出　　处：《热力发电》2003年第4期36-38,共3页Thermal Power Generation

摘　　要：襄樊电厂 4台 30 0MW汽轮机的汽封采用传统的合金钢材料。系统分析认为 ,由于汽封材质性能不良 ,造成汽封漏汽严重 ,真空下降 ,对机组的经济性和安全性产生严重影响。通过对汽封进行技术改造 ,采用新材料的铁素体及铜合金汽封 ,解决了漏汽问题 。Traditional alloy steel materials were used for steam seal glands on four 300 MW steam turbines in Xiangfan Power Plant, Through systematic analysis, it is considered that the serious steam seal gland leakage was caused by the bad quality of said glands' materials, making the vacuum to come down, influencing seriouly upon the economic and safe aspects of said units. Hence, technical retrofit of the said glands has been carried out, new ferritic and copper-alloy materials having been used for them, greatly enhancing the economic and safe aspects of the said units.

关 键 词：300MW汽轮机 铁素体 铜合金 汽封 合金钢材料 

分 类 号：TK263.2[动力工程及工程热物理—动力机械及工程]