某运行高炉煤气余压回收透平发电装置（Blast Furnace Gas Top Pressure Recovery Turbine Unit， TRT）的动叶片是直叶片，机组运行效率不高。在不改变机组进气条件的前提下，通过优化叶型降低流道中的损失，提高TRT涡轮的效率。在给定TRT涡轮通流尺寸的基础上优化动叶片的型线，对原始型线进行三维CFD计算，在原型线的基础上进行优化改进，并针对动叶片的叶身部分做了强度校核计算，优化后机组的总效率提高了1.7%，机组的输出功增加了4.2%。

The rotating blades of a running TRT（Blast Furnace Gas Top Pressure Recovery Turbine Unit）are straight blades,and unit operation efficiency is not high.Without changing the intake conditions of the unit,it is an effective means to improve the efficiency of TRT turbine by optimizing the blade profile to minimize the loss in the flow passage.In this paper,the rotating blades are optimized through the three-dimensional CFD calculation,and the strength of the blade is calculated and verified.With the optimized turbine blade,the total efficiency of the optimized unit is increased by 1.7% and the output power of the unit is increased by 4.2%.

TK263.3