汽轮机小焓降叶片的扇形叶栅试验研究

Experimental Study on Fan Cascade with Small Enthalpy-drop Blade of Steam Turbine

针对高中压典型级静叶的小焓降叶片进行了扇形叶栅试验研究。试验结果表明:由于小焓降叶片具有先进的后部加载特性,并且沿叶高应用了通流能力均匀化措施,高中压静叶栅的气动性能达到了先进水平。

The fan cascade experiments on the small enthalpy drop blades of typical stator blades of high and medium pressure were carried out.The experimental results show that the aerodynamic performance of the high and medium pressure static cascade has reached an advanced level because of the advanced rear loading characteristics of the small enthalpy drop blade and the uniform flow capacity along the blade height.