涡轮叶片冷却结构设计的方案设计以管网计算为基础。本文简要介绍了管网模型的建立方法、近似和假设、边界条件的给定方式和控制方程的建立。说明了管网求解程序的思路与数值方法,介绍了管网压力平衡计算中对动量方程的线性化处理方法、气膜修正计算方法。以某型燃气涡轮第一级动叶的冷却结构设计为例,介绍了基于管网计算的冷却结构方案设计流程,对4个冷却结构初步设计方案的管网计算结果进行了分析,从中选择相对合理的方案并进行改进、确定了2个备选的叶片冷却结构。 The design of turbine blade cooling structure design based on pipe network calculation. This article briefly introduces the establishment of pipe network model, approximation and assumptions, the boundary conditions of a given way and the establishment of control equations. The idea and numerical method of pipe network solving procedure are described. The linearization method of momentum equation and the calculation method of gas film correction are introduced. Taking the cooling structure design of the first stage of a gas turbine as an example, the design flow of the cooling structure based on pipe network calculation is introduced. The pipe network calculation results of the four primary cooling design schemes are analyzed, and the relative Reasonable programs and improvements, identified two alternative blade cooling structure.