燃气轮机联合循环机组冷端真空改善研究  

Research on Vacuum Improvement of Cold End of Gas Turbine Combined Cycle Unit

作　　者：刘忠源 LIU Zhong-yuan(Jiangsu Huadian Kunshan Thermal Power Co.,Ltd.,Kunshan 215333,China)

机构地区：[1]江苏华电昆山热电有限公司,昆山215333

出　　处：《价值工程》2021年第13期101-102,共2页Value Engineering

摘　　要：相比于燃煤火力发电机组,燃气轮机联合循环发电机组的高效、启停快及调峰性强的优点,多用于电网调峰。由于燃气轮机发电机组频繁启停,汽轮机组冷端真空严密性不佳的问题比较普遍。汽轮机组冷端真空严密性不佳,直接影响汽轮机组冷端真空,直接影响机组安全和经济运行。某燃气轮机联合循环发电厂在长期对汽轮机组冷端真空严密性问题分析和改善过程中,总结了一套问题分析方法和经验,极大地改善了机组的经济效益。Compared with coal-fired thermal power generating units,gas turbine combined cycle generating units have the advantages of high efficiency,quick start-stop and strong peak regulation,and they are mostly used for power grid peak regulation.Due to frequent start-stop of gas turbine generating units,the problem of poor vacuum tightness at the cold end of steam turbine units is more common.The vacuum tightness of the cold end of the steam turbine unit is not good,which directly affects the vacuum of the cold end of the steam turbine unit,and directly affects the safety and economic operation of the unit.In a gas turbine combined cycle power plant,in the long-term analysis and improvement of the vacuum tightness of the cold end of the steam turbine unit,a set of problem analysis methods and experience were summarized,which greatly improved the economic benefits of the unit.

关 键 词：氦质谱检漏仪 真空查漏 燃气轮机发电厂 

分 类 号：TM611.24[电气工程—电力系统及自动化]