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一、概述在轴流式压气机,燃气轮机和汽轮机中,广泛采用各种形式的扩压器,使工质的一部分余速转换成压力能,以提高机组效率。上述透平机械中所采用的扩压器都是环状的。按其形状可分成锥形环状扩压器和曲线轴——径扩压器。关于锥形环状扩压器的设计方法我们已在〔1〕中讨论过了。
I. Overview In axial compressors, gas turbines and steam turbines, various types of diffusers are widely used to convert part of the working fluid into pressure energy to improve the unit efficiency. The diffusers used in the above turbine machines are all ring-shaped. According to its shape can be divided into conical annular diffuser and curved axis - diameter diffuser. The design method of conical annular diffuser has been discussed in [1].