跨超声速风洞套筒式调压阀副密封故障分析与改进

Malfunction analysis and improvement on the second seal of the cage type control valve in the transonic and supersonic wind tunnel

介绍了跨超声速风洞套筒式调压阀的结构,分析了副密封的故障原因,论述了副密封的改进方案及其效果。

Introduces the structure of the cage type control valve in the transonic and supersonic wind tunnel. Analyzed the reason of malfunction on the second seal. Discussed the improvement schemes and results.