根据GEA空冷装置及机组运行特点，总结空冷机组真空严密性试验的基本方法和相关操作。
This paper introduces the operational characteristics of the GEA Air Cooling Unit, and summarizes the basic method and relative operation of the vacuum leakage test of Air Cooling Units.
通过对某电厂5号机组及7号机组真空系统的严密性试验，分析汽轮机真空系统节能降耗潜力。
The tests of vacuum system tightness against power unit 5 unit 7 in a power plant have been described and energy reduction of the vacuum system of the turbine has been analyzed in this paper.
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