消声罩调节阀的振动试验与分析

Vibration Test and Analysis of Control Valve with Muffler

文章介绍用于核电汽轮机的消声罩调节阀,在运行中出现异常振动,阀碟与活塞环相配处严重损坏,为此,做了现场振动与噪声测试、模拟试验以及计算分析。其原因为自激振动与阀碟自振频率合拍所产生的共振。最后,提出了改进措施。

The paper describes abnormal vibration and wear of piston ring existing in the operation of control valves of mufflers for nuclear turbine. The results of vibration and field noise test,air model test and theoretical analy -sis shows that the cause is the frequency resonance generated from harmonization of self excit -ed vibration and self vibration of valve plug- And the measures for improvements is put forwar -d.