稳压器安全阀泄漏原因分析

Analysis of Root Cause for Safety Valve Leak

针对稳压器安全阀在使用现场试验时出现的泄漏问题开展专项研究,全面展开包括拆检、零部件外观和关键尺寸检查、初步原因分析、原因分析结果排查、同轴度检测、释放阀对比试验、零部件更换、冷态密封性试验和热态试验的工作,找出安全阀故障的主要原因,制定和实施相应的改进措施对4台稳压器安全阀进行修复。试验结果表明,找出的故障主要原因准确,制定的改进措施得当。改进后产品出厂的检验和试验表明,稳压器安全阀的质量已得到根本改善,全面提高了产品的可靠性。

The special research is carried out on the leakage problem of the safety valve used in the field test. The main failure cause of safety valve has been found by dismantled them into parts, by checking the surfaces and the major dimensions, and analysis and inspection of the initial reason, measuring the coaxiality, then comparative tests for the relief valve, changing the parts, testing of airproof performance at cold state and hot state. According to this, the corresponding improvements has been taken to the 4 safety valve for repairing. The main cause of the problems that obtained and the improvements is accurate and appropriate from the testing results of the equipment and the submarine. According to the checkouts and tests results of products that hand over recently, the quality and the reliability of the safety valve has been improved evidently.