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列举了目前国内大型制冷机组生产中惯用的几种检漏方法，叙述了灵敏度高、检测周期短、用氦气作为示漏介质的氦质谱检漏技术，介绍了氦检漏装置及其在大型制冷机组在线检测中的应用。
In this paper, several commonly used methods of leak detection in the production of large refrigeration units are listed. The helium mass spectrometry leak detection technology with high sensitivity, short detection period and using helium as the leakage indicator is described. The helium leak detection device and its application in large Application of On - line Inspection of Refrigerating Unit.