某1000MW超超临界机组低压通流优化方法研究  

Research on Low Pressure Flow Optimization Method for a 1000MW Ultra Supercritical Unit

作　　者：孙嘉 夏芃 杨洪亮 杨文正 赵洪羽 葛宇 蒋国安 蒋华 SUN Jia;XIA Peng;YANG Hong-liang;YANG Wen-zheng;ZHAO Hong-yu;GE Yu;JIANG Guo-an;JIANG Hua(Harbin Turbine Company Limited,Harbin 150046,China;CHN Energy Taizhou Power Genaration Corperation Ltd.,Taizhou 225327,China;Zhongdian Shentou Power Generation Co.,Ltd.,Shuozhou 036800,China;Guoneng Nanjing Electric Power Test and Research Co.,Ltd.,Nanjing 210023,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046 [2]国家能源集团泰州发电有限公司,泰州225327 [3]中电神头发电有限责任公司,朔州036800 [4]国能南京电力试验研究有限公司,南京210023

出　　处：《汽轮机技术》2024年第6期418-422,共5页Turbine Technology

摘　　要：指出了某1000MW超超临界机组低压通流效率较低的原因,据此针对低压通流的级做功型式、级数、焓降分配及末级叶片提出了优化方法并确定最终优化方案;最后对优化前后的低压通流进行了三维气动分析,结果表明,优化后通流效率明显提升。This article proposes the reasons for the low low-pressure flow efficiency of a 1000MW ultra supercritical unit,Based on this,optimization methods are proposed for the stage work type,stage numbers,enthalpy drop distribution,and final stage blades of low-pressure flow.And the final optimization plan is determined.Finally,a three-dimensional aerodynamic analysis was conducted on the low-pressure flow before and after optimization,and the results showed that the flow efficiency was significantly improved after optimization.

关 键 词：1000MW超超临界汽轮机 低压通流 优化方法 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]