双机回热机组小汽轮机结构设计要点  

Key Points of Structural Design of Feed-water Pump Turbine with Double-turbine Regeneration System

作　　者：饶真炎[1] 宋放放 张文祥 徐志辉[1] 高展羽 赵先波[1] 冯娟 赵春芳[1] RAO Zhenyan;SONG Fangfang;ZHANG Wenxiang;XU Zhihui;GAO Zhanyu;ZHAO Xianbo;FENG Juan;ZHAO Chunfang(Dongfang Turbine Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]东方电气集团东方汽轮机有限公司,四川德阳618000

出　　处：《东方汽轮机》2024年第4期8-11,共4页Dongfang Turbine

摘　　要：双机回热系统可有效提升发电系统循环效率,是火电机组最前沿的技术之一。东汽设计的国内首台带功率平衡发电机双机回热系统超超临界一次再热百万机组——岳阳项目成功投运,主汽轮机和给水泵小汽轮机各项参数正常,控制系统稳定可靠。文章基于岳阳项目的设计经验,对小汽轮机的结构设计关键要素进行阐述。The application of double-turbine regeneration system can effectively generate the cycle efficiency of the system,which is one of the most advanced technologies of thermal power units.The Yueyang project,the first one-off ultra-supercritical reheat 1000MW unit with double-turbine regeneration system with power balance designed by DTC,has been put into operation successfully.The main turbine and feed-water pump turbine parameters are normal,the control system is stable and reliable.Based on the design experience of the Yueyang project,this paper summarizes the key elements of the structural design of the feed-water pump turbine.

关 键 词：双机回热 小汽轮机 结构设计 关键要素 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]