摘要
介绍了汽轮发电机组直接、间接空冷系统的工作原理及主要组成部分,对直接空冷机组以机组排汽压力、凝结水温度和抽气管道凝结水过冷度等为控制对象、间接空冷机组以主机循环水热水温度为控制对象的原理进行了说明,分析了直接、间接空冷系统的防冻保护功能和工艺流程,总结了直接、间接空冷系统的背压控制方法等。
This paper introduced the working principle and main components of directand indirect air cooling systems of turbine generator sets.The principles of the direct aircooling system,which took the exhaust steam pressure,condenser water temperature andthe air pumping pipe condensation water over cooling as the control object,and theprinciples of the indirect air cooling system,which took the circulating water temperatureof turbine as the control object were introduced.The anti-freezing protection function andprocess flow were analyzed,and the back pressure control methods were summarized.
出处
《内蒙古电力技术》
2015年第4期17-22,共6页
Inner Mongolia Electric Power
关键词
汽轮发电机组
直接空冷
间接空冷
空冷凝汽器
控制策略
防冻保护
背压控制
turbine generator
direct air cooling
indirect air cooling
ACC
controlstrategy
anti-frozen protection
back pressure control
