【作者】 李军； 晏鑫； 丰镇平； 江生科； 孔祥林； 孙奇； 王建录； 王为民；

【Author】 Jun LI Xin YAN Zhenping FENG Institute ofTurbomachinery,Xi’an Jiaotong University,Xi’an 710049,China Shengke JIANG Xianglin KONG Qi SUN Jianlu WANG Weimin WANG Dongfang Steam Turbine Co.Ltd.,Deyang 618001,China

【机构】 西安交通大学能源与动力工程学院叶轮机械研究所； 东方汽轮机有限公司；

【摘要】 针对透平机械的气流激振问题所发展的阻尼密封技术的研究现状进行了综述.详细介绍了三种典型阻尼密封技术袋型阻尼密封、蜂窝阻尼密封和孔型阻尼密封的结构特点、动力学特性和阻尼机理及研究和应用现状.介绍了西安交通大学叶轮机械研究所TurboAero研究小组所开发的用于预测蜂窝阻尼密封和孔型阻尼密封转子动力特性的基于两控制容积Bulk Flow理论的模型和算法,并采用具有试验数据的孔型阻尼密封进行验证.最后对阻尼密封技术的设计、研发及在透平机械行业的应用前景进行了展望,以期对我国透平机械的密封系统的研发提供理论基础和技术参考.更多还原

【Abstract】 Review on damper seals technology due to the seal aerodynamic excitation in turbomachinery is presented.The geometrical structure,rotordynamic coefficients and damper mechanisms of three typical damper seals:pocket damper seal,honeycomb damper seal and hole-pattern damper seal technology are introduced in details.In addition,the corresponding state of art of the damper seal technology applications in turbomachinery is also illustrated.The numerical simulation model and algorithms based on two-control volume Bulk Flow theory for predicting the rotordynamic coefficients of the honeycomb damaper seal and hole-pattern damper seal is developed by the TurboAero Group of Xi’an Jiaotong University in China.The reliability of the developed algorithms is demonstrated through comparison with the published experimental data.The research and development of the damper seals for future turbomachinery industries is also discussed.更多还原