摘要
针对田家庵发电厂波兰产的 1号、2号 (TK - 12 0 )汽轮机的现运行情况 ,实施了对汽轮机中压缸、转子及轴封系统的改造工程。使中压缸的内效率由 85 .6 9%提高到 91.96 % ,整机热耗由 92 94.1kJ/ (kW·h)降低到 90 85 .18kJ/ (kW·h) ,汽轮机前端轴瓦振动由 0 .0 5mm降低到 0 .0 0 8mm ,汽轮机后端轴瓦振动由 0 .10mm降低到 0 .0 12mm ,汽轮机推力瓦温度由 98℃降低到 77℃ ,机组轴封系统达到设计标准。机组改造后综合安全性能得到了保证 ,热效率明显提高 。
The IP cylinder rotor and gland-packing system of No.1、No.2 TK-120 steam turbine has been modified according to its operation in TianJia'an power station. The inner efficiency is improved from 85.69 % to 91.96 %; the heat consumption is reduced from 9?294.1 kJ/(kW·h) to 9?085.18 kJ/(kW·h) the vibration of bearing pad in front is from 0.05 mm to 0.008 mm and 0.1 mm to 0.012 mm in back; the temperature of thrust pad is from 98℃ to 77℃; the gland-packing system can meet the design requirement. After the modification, the safety and heat efficiency is increased largely. So better efficiency in economics and society can be gained.
出处
《汽轮机技术》
北大核心
2001年第3期166-168,共3页
Turbine Technology
关键词
汽轮机
效率
安全
steam turbine
modification
efficiency
safety
