透平导叶闭式蒸汽冷却方案研究

工程热物理学报 , 2008, 29(7): 1121-1124.

1.中国科学院研究生院,北京,100190;中国科学院工程热物理研究所,北京,100190

2.中国科学院研究生院,北京,100190;中国科学院工程热物理研究所,北京,100190

3.中国科学院工程热物理研究所,北京,100190

4.中国科学院工程热物理研究所,北京,100190

INVESTIGATION ON COLSED-LOOP STEAM COOLING SCHEMES OF A GAS TURBINE GUIDE-VANE

本文对某重型燃机进口导叶的冷却方案进行研究,用闭式蒸汽冷却对传统设计的开式空气冷却改型,采用气热耦合方法分析对比了两者的冷却效果.结果表明,闭式蒸汽冷却简化结构的同时,增大了冷却效率,降低由冷却带来的损失.研究工作为进一步提高燃气轮机进口温度、优化叶片冷却结构奠定基础.

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