三级轴流压气机湿压缩特性分析  

Analysis of wet compression in three-stage axial flow compressor

作　　者：郑洪涛[1] 陈佩[1] 

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《热科学与技术》2010年第3期232-237,共6页Journal of Thermal Science and Technology

摘　　要：湿压缩技术能够使燃气轮机在一定程度上达到节能减排的效果,但喷水后引入的附加损失使湿压缩效果趋于不利,需要对湿压缩特性以及该技术可能带来的负面作用进行分析研究。利用CFX软件对某型三级轴流压气机在设计工况下的湿压缩进行全三维数值模拟,分析湿压缩对压气机性能的影响。结果表明,湿压缩能够有效降低压气机出口温度,且应用在压力较高的叶栅流道内更具有优势;湿压缩应用在该低压轴流压气机中存在明显的负面作用。Wet compression can reduce the outlet temperature and compression work of the compressor under certain conditions,but the extra loss brought by the humidification may produce some side effects.In order to apply this technology better,the characteristic of wet compression needs to be investigated,especially,the side affects brought by wet compression need to be analyzed.A full three-dimensional calculation of wet compression under the design point was conducted by utilizing ANSYS CFX.By simulation,although wet compression can effectively reduce the outlet temperature of the compressor,obvious negative side effects exist for low pressure ratio axial compressors.Meanwhile,it would have more advantages when the wet compression applied in the cascade of higher pressure.

关 键 词：三级轴流压气机 湿压缩 数值模拟 特性 

分 类 号：TK474.8[动力工程及工程热物理—动力机械及工程] TH453[机械工程—机械制造及自动化]