机翼整体油箱氦质谱检漏技术

Leakage Detection Technology by Means of Helium Mass Spectrum for Integral Oil Tank of Wing

简要介绍了氦质谱检漏技术的基本原理 ;阐述了可用于机翼整体油箱检漏的 3种基本方法———单边罩合法、正压法、负压法 ;针对负压法对氦气与航空煤油的泄漏关系进行了对比试验 ,确定了能够应用于生产的初步标准。

The basic principle of the leakage detection technology by means of helium mass spectrum is introduced. Three main methods to be used for leakage detection of the integral oil tank of wing: method by using a casing on the single side, positive pressure method and negative pressure method are described. The leakage relationship between helium and aero kerosene is compared according to the negative pressure method. The preliminary standard which can be used in production is established.