平衡孔漏气对级性能影响的研究

Research of Turbine Stage Efficiency Influenced by the Balance Hole Leakage

针对平衡孔漏气对透平级性能的影响问题进行了试验和数值研究。根据试验和计算结果,阐述了汽轮机组通流部分级间吸漏状况,剖析了其内部基理,并对其影响级性能的因素作了论述,为汽轮机通流部分的设计提供了参考。

This paper studies the influence of turbine stage efficiency follow the leak out flow between the balance hole leakage. research influence of turbine stage efficiency through the test and numerical study. According to the test and calculation results, this paper expounds between flowing unit of steam turbine discharge and absorb status, analyses the internal factors, base the internal factors of influence discussed for steam turbine, provides guidance for the design of flowing unit.