汽轮发电机组空冷系统控制策略分析  

Control Strategy Analysis of Air Cooling System on Steam Turbine Generator

作　　者：殷建华[1] 杜荣华[1] 麻宏伟[1] 于海存[1] 

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020

出　　处：《内蒙古电力技术》2015年第4期17-22,共6页Inner Mongolia Electric Power

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.

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 

分 类 号：TP273.3[自动化与计算机技术—检测技术与自动化装置]