正压检漏法在密封舱整体漏率设计及检测中的应用

Application of Positive Pressure Leak Detection in Design and Testing of Integral Leak Rate of Capsule

该文应用罩盒累积提高正压检漏法的检漏灵敏度,应用该检漏方法识别出影响密封舱整体漏率的薄弱环节,针对薄弱环节采取结构形式改进和密封圈材料更换等方法提高对接面处密封性能,从而达到降低密封舱整体漏率的目的。

An encloser is used to improve accumulatively the detection sensitivity of positive pressure leak detection and identify the weak points which may affect the integral leak rate of the capsule in this paper. Some methods, such as structural improvement and change of sealing ring material are taken to improve the sealing ability at the mating surface against the weak points, thus to reduce the integral rate of capsule.