汽轮机气动设计中的S2流面计算

›› 1990, Vol. 26 ›› Issue (1): 80-85.

汽轮机气动设计中的S2流面计算

蒋洪德;朱荣国

中国科学院工程热物理研究所

发布日期:1990-01-01

S2 STREAM SURFACE DESIGN PROGRAM FOR STEAM TURBINE

Jiang Hongde;Zhu Rongguo

Engineering Thermophysics Institute Acadomia Sinica

Published:1990-01-01

摘要/Abstract

摘要： 本文介绍了基于S2流面上流函数气动方程反问题解法的汽轮机气动设计计算方法。可以与S1流面上的计算结合起来进行透平级的准三元设计计算；也可以在某些简化条件下单独使用，进行多级透平各排叶片扭曲规律的设计计算。基本方程采用任意非正交曲线坐标系，使用线松弛方法求解。以哈尔滨汽轮机厂优化20kW汽轮机低压缸为算例，将计算结果与轴对称假定下叶片间隙站内的计算结果进行了比较，并分析了叶片力、叶片厚度及熵的积累等因素对计算结果的影响。

关键词: S{sub}2流面设计计算, 汽轮机气动设计, 叶轮机械

Abstract: Based upon Wu's S2 stream surface equation, the steam turbine design program was presented. The main equation using steam function, employing no orthogonal curvilinear coordinates and no orthogonal velocity components, includes the influence of blade fosse, blade thickness and entropy. This main equation using steam function, employing no orthogonal curvilinear coordinates and orthogonal velocity components, includes the influence of blade fosse, blade thickness and entropy. This program alone can be used to design steam turbine in some simple cases and also can be applied for 3D design with comminuting s1 calculating. As a sample, the optimum 200 MW L. P. steam turbine of Harbin Steam Factory was calculated and the effects of blade fosse, blade thickness and entropy were analyzed.

Key words: S{sub}2流面设计计算, 汽轮机气动设计, 叶轮机械

蒋洪德;朱荣国. 汽轮机气动设计中的S2流面计算[J]. , 1990, 26(1): 80-85.

Jiang Hongde;Zhu Rongguo. S2 STREAM SURFACE DESIGN PROGRAM FOR STEAM TURBINE[J]. , 1990, 26(1): 80-85.

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