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本文针对目前普遍采用的煤油试漏法检测气阀密封性存在的问题,提出了用气密性试验检测气阀密封性的新方法,并且引入“气阀当量间隙”来定量评定气阀密封性能。文中还介绍了气密性试验装置及试验结果,详细分析了阀片不平度、阀片倒角、阀座凡尔线缺陷、装配清洁度、充气压力、保压时间、重复试验次数等因素对当量间隙值的影响。
In this paper, the current prevalence of kerosene leak detection method for testing the valve sealing problems, put forward the use of air tightness test valve sealing method of a new method, and the introduction of “valve equivalent clearance” to quantitatively assess the valve sealing performance . The article also introduces the airtight test device and the test results. The factors such as the unevenness of the valve, the chamfer of the valve, the defect of the valve seat Verlag, the cleanliness of the assembly, the inflation pressure, the dwell time and the number of repeated tests are analyzed in detail Effect of equivalent gap value.