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随着我国四化建设的飞速发展,叶轮机械的应用范围日趋广泛,在船舶工业中也得到广泛应用,故用传统的一元流动设计出圆柱形叶片的常规叶轮,已不能完全适应了,特别是在高转速、大流量的情况下,叶轮的相对宽度较宽时,这种“常规”叶轮已开始被具有三元扭曲的叶轮所取代。 本文欲想通过利用余热的BTL-300船用氟利昂透平制冷机组的研制实践,进一步提出一个有一定计算精度,又比较适宜于实用的三元叶型的计算和成型方法的理论,以适应蓬勃发展的三元叶轮的需要。
With the rapid development of the four modernizations in our country, the application range of the impeller is becoming wider and wider. It is also widely used in the shipbuilding industry. Therefore, the conventional impeller designed with the cylindrical unimodal flow can not be fully adapted, especially At high rpm and high flow, the “conventional” impeller has begun to be replaced by a ternary twisted impeller when the relative width of the impeller is wide. In this paper, through the research and development of BTL-300 Marine Freon turbines utilizing residual heat, a theory of calculation and forming method with certain calculation accuracy and more suitable for practical ternary leaves is proposed, in order to adapt to the flourishing development The needs of the ternary impeller.