F级中低热值燃料燃气轮机透平部分气动方案优化设计与分析  

Aerodynamic Optimization Design and Analysis on the Turbine Part of F Class Gas Turbine Under Middle and Low Heat Value Fuel

作　　者：刘勋[1] 周逊[1] 温风波[1] 王松涛[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学发动机气体动力研究中心,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2011年第26期1-8,共8页Proceedings of the CSEE

基　　金：国家高技术研究发展计划(863计划)(2008AA5A302)~~

摘　　要：通过一维计算和准三维计算,对地面重型F级中低热值燃气轮机透平进行了方案设计与优化。由一维优化结果指导准三维计算,并对结果进行优化。计算结果表明,通过一维优化计算,效率提高0.8%,末级更接近轴向出气,在第2、3级静叶流道存在跨声速流动;准三维计算结果中,由于第1级冷却空气量较大,冷却空气掺混损失在总损失中占有较大比例,二次流损失是影响总损失沿叶高分布的重要因素;准三维优化使损失降低,在第3级静叶中,损失较优化前大幅度降低。参考一般F级的透平气动设计的经验,讨论燃气轮机方案设计,探讨如何选择确定一维参数、准三维参数,并进行优化,从而为燃气轮机的透平部分的工程设计提供参考。The turbine of heavy duty gas turbine was studied by one-dimensional and quasi three-dimensional method, including mode design and optimization. The quasi three-dimensional calculation was based on the result of the one-dimensional optimization, and the quasi three-dimensional result was optimized. The result shows that the efficiency increases 0.8% by the one-dimensional optimization, and the outlet flow angle is close to 90 degree. There is transonic flow in the flow path of the second and third stator. In the quasi three-dimensional calculation, the cool air mix loss takes an important part in the total loss, due to the large quantity of cool air in the first stage. The secondary loss is a great factor to impact the loss distribution along blade height. The loss is decreased by the quasi three-dimensional optimization, especially in the third stator. The purpose of this study, refer to the general F-class turbine aerodynamic design experience, to discuss gas turbine design on how to choose one dimensional, quasi three-dimensional parameters, so as to provide cascade reference to the engineering design.

关 键 词：燃气轮机 气动设计 一维 准三维 中低热值 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]