某型TRT机组叶片性能优化设计
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摘要
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%.
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%.
引文
[1] 印建安.高炉煤气余压发电装置中炉顶压力稳定性分析与控制试验研究[D].杭州:浙江大学,2003.YIN Jian-an.Stability analysis and control test research on top pressure of blast furnace gas residual pressure power generation device[D].Hangzhou,Zhejiang University,2003.
[2] 刘希琳.TRT装置高炉定压控制系统研究与设计[D].杭州:浙江大学,2008.LIU Xi-lin,Research and design of blast furnace constant pressure control system for TRT Unit[D].Hangzhou:Zhejiang University,2008.
[3] 江海,袁化成.某型TRT机组进气蜗壳气动优化设计研究[J].冶金动力,2011(6):41-44.JIANG Hai,YUAN Hua-cheng.Research on aerodynamic optimization design of air inlet scroll casing of a certain type of TRT Unit[J],Metallurgical Power,2011(6):41-44.
[4] 董萍.叶尖间隙封严对TRT涡轮气动性能的影响[D].南京:南京航空航天大学,2015.DONG Ping.The effect of tip clearance seal on the aerodynamic performance of TRT Turbomachinery[D].Nanjing:Nanjing University of Aeronautics & Astronautics,2015.
[5] 吴奕明,赵刚.干式TRT机组解决叶片积灰的应用实践[J].冶金动力,2014(2):13-15.WU Yi-ming,ZHAO Gang.Dust removal practice of rotary blades of dry TRT unit[J].Metallurgical Power,2014(2):13-15.
[6] 王仲奇,秦仁.透平机械原理[M].北京.机械工业出版社,1988.WANG Zhong-qi,QIN Ren.Principles of turbomachinery[M].Beijing,Machinery Industry Press,1988.
[7] 郭然,贾力平.NUMECA系列教程[M].北京:机械工业出版社.2013.GUO Ran,JIA Li-ping.Series tutorials of Numeca[M].Beijing:Machinery Industry Press,2013.
[8] 古尔维奇,库茨涅佐夫.锅炉机组热力计算标准方法[M].北京.机械工业出版社,1976.IPSWICH K G.Standard method for thermal calculation of boiler units[M].Beijing,Machinery Industry Press,1976.
[9] 周岳琨,王建新.汽轮机叶片设计和几何成型方法综述[J].汽轮机技术,2001,43(4):198-221.ZHOU Yue-kun,WANG Jian-xin.A summary about turbine blade design and molding method[J].Turbine Technology,2001,43(4):198-221.
[10] 吴厚钰.透平零件结构和强度计算[M].北京:机械工业出版社,1982.WU Hou-yu.Structure and strength calculation of turbine parts[M].Beijing:Machinery Industry Press,1982.
[2] 刘希琳.TRT装置高炉定压控制系统研究与设计[D].杭州:浙江大学,2008.LIU Xi-lin,Research and design of blast furnace constant pressure control system for TRT Unit[D].Hangzhou:Zhejiang University,2008.
[3] 江海,袁化成.某型TRT机组进气蜗壳气动优化设计研究[J].冶金动力,2011(6):41-44.JIANG Hai,YUAN Hua-cheng.Research on aerodynamic optimization design of air inlet scroll casing of a certain type of TRT Unit[J],Metallurgical Power,2011(6):41-44.
[4] 董萍.叶尖间隙封严对TRT涡轮气动性能的影响[D].南京:南京航空航天大学,2015.DONG Ping.The effect of tip clearance seal on the aerodynamic performance of TRT Turbomachinery[D].Nanjing:Nanjing University of Aeronautics & Astronautics,2015.
[5] 吴奕明,赵刚.干式TRT机组解决叶片积灰的应用实践[J].冶金动力,2014(2):13-15.WU Yi-ming,ZHAO Gang.Dust removal practice of rotary blades of dry TRT unit[J].Metallurgical Power,2014(2):13-15.
[6] 王仲奇,秦仁.透平机械原理[M].北京.机械工业出版社,1988.WANG Zhong-qi,QIN Ren.Principles of turbomachinery[M].Beijing,Machinery Industry Press,1988.
[7] 郭然,贾力平.NUMECA系列教程[M].北京:机械工业出版社.2013.GUO Ran,JIA Li-ping.Series tutorials of Numeca[M].Beijing:Machinery Industry Press,2013.
[8] 古尔维奇,库茨涅佐夫.锅炉机组热力计算标准方法[M].北京.机械工业出版社,1976.IPSWICH K G.Standard method for thermal calculation of boiler units[M].Beijing,Machinery Industry Press,1976.
[9] 周岳琨,王建新.汽轮机叶片设计和几何成型方法综述[J].汽轮机技术,2001,43(4):198-221.ZHOU Yue-kun,WANG Jian-xin.A summary about turbine blade design and molding method[J].Turbine Technology,2001,43(4):198-221.
[10] 吴厚钰.透平零件结构和强度计算[M].北京:机械工业出版社,1982.WU Hou-yu.Structure and strength calculation of turbine parts[M].Beijing:Machinery Industry Press,1982.