某型航空发动机压气机叶片干冰清洗试验研究

为研究某型航空发动机压气机叶片干冰清洗效果并获取关键参数值,分析了压气机叶片干冰清洗的原理,测试了干冰清洗对压气机叶片的清洗效果。采用人工涂抹法模拟不同积垢的压气机叶片,进行压气机叶片干冰清洗试验,在不同的参数下系统地研究干冰质量流量、喷射角度和压气机转速等参数对干冰清洗效果的影响,获得干冰清洗压气机叶片的最佳参数范围。试验结果表明,干冰清洗对压气机叶片有较好的清洗效果,人工涂抹法可以较好地模拟实际的压气机叶片积垢情况,获得清洗关键参数干冰质量流量、喷射角度和转速的较优范围。

Experimental Study on Dry Ice Cleaning of a Certain Type of Aero-engine Compressor Blades

In order to study the dry ice cleaning effect of a certain type of aeroengine compressor blades and obtain key parameter values , the principle of dry ice cleaning of compressor blades was analyzed , and the cleaning effect of dry ice cleaning on compressor blades was tested.The artificial smearing method is used to simulate different fouled compressor blades , and the dry ice cleaning test of compressor blades is carried out.The effects of dry ice mass flow rate , injection angle and compressor speed on dry ice cleaning are systematically studied under different parameters , and the optimal parameters range of dry ice cleaning compressor blade is obtained.The test results show that dry ice cleaning has a good cleaning effect on compressor blades , and the manual smearing method can better simulate the actual compressor blade fouling situation , and obtain the optimal range of cleaning key parameters , dry ice mass flow , spray angle , and speed.