多级小焓降涡轮叶片热力气动设计方法与工程实践  

Development and Application of a New Low Enthalpy-drop Turbine Blade Thermal-aerodynamic Design Methodology with More Stage Numbers

作　　者：管继伟[1] 郭魁俊 GUAN Ji-wei;GUO Kui-jun(Harbin Turbine Company Limited,Harbin 150046,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2023年第4期256-258,300,共4页Turbine Technology

摘　　要：深入地研究了汽轮机通流部分基本设计参数对流动损失的综合影响,提出了能够有效提升通流效率的多级小焓降叶片气动设计方法,并结合各种流动损失的产生机理揭示了多级小焓降叶片气动设计方法在理论上的内在合理性。将多级小焓降叶片气动设计方法与其它准三维和三维叶片设计技术融合,应用于哈汽公司1000MW超超临界汽轮机高压通流的气动设计,随之进行的叶栅风洞试验和机组性能试验结果证实了多级小焓降叶片气动设计方法在工程设计中的有效性。Total flow loss resulted from selection of basic design parameters of steam turbine stage is investigated thoroughly,then a newlowenthalpy-drop turbine blade thermal-aerodynamicdesign methodology with more stage numbers for increasing turbine flowpath efficiency is developed.Validity of design methodology mentioned above is discussed and unveiled drawing support from turbine stage flow loss generation mechanism.Low enthalpy-drop turbine blade thermal-aerodynamic design methodology and quasi-three/three dimension aerodynamic design technology is used for HP blades design of super ultra-critical 1000MW steam turbine of Harbin Turbine Company Limited.Cascade wind test and unit performance test demonstrates that low enthalpy-drop turbine blade thermal-aerodynamic design methodology is valid for increasing steam turbine flowpath efficiency.

关 键 词：多级小焓降涡轮叶片 热力气动设计 透平通流效率 

分 类 号：TM621[电气工程—电力系统及自动化]