汽轮机中压缸抽汽腔室通流优化数值模拟  

Numerical Investigation of Turbine Cylinder Near the Extraction Chamber

作　　者：涂朝阳 张志业 柯展煌 赵洪羽 刘瑶 谭宏 刘建宝[2] TU Zhao-yang;ZHANG Zhi-ye;KE Zhan-huang;ZHAO Hong-yu;LIU Yao;TAN Hong;LIU Jian-bao(CHN Energy(Quanzhou)Thermal Power Co.,Ltd.,Quanzhou 362100,China;Harbin Turbine Company Limited,Harbin 150046,China)

机构地区：[1]国电泉州热电有限公司,泉州362100 [2]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2021年第6期443-444,406,共3页Turbine Technology

摘　　要：以某超临界汽轮机中压缸抽汽模型为例,对抽汽口前后的静动叶、主流道腔室及抽汽腔室进行全周全三维数值模拟,根据各截面流线图、马赫数云图等分析了抽汽腔室内的流动损失,并优化主流道、抽汽腔室的形状,减少抽汽腔室内的流动损失,提高效率。Taking the extraction model of a medium-pressure cylinder of a supercritical steam turbine as an example,the full-scale three-dimensional numerical simulation of thebladebefore and after the extraction chamber,the main flow channel and the extraction chamber is carried out.According to the streamline diagram of each section and the Mach number cloud map,the flow loss in the extraction chamber is analyzed,and the shape of the main flow channel and the extraction chamber are optimized.It will reduce the flow loss in the extraction chamber and improve the efficiency.

关 键 词：汽轮机 抽汽 气动性能 数值模拟 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]