双机回热系统给水泵汽轮机设计特点及运行控制策略  

Characteristics and Operation Control Strategy of Feed Pump Turbine with Double-turbine Regeneration System

作　　者：曹应飞 宋放放 唐涛[1] 高展羽 邓凌宇[1] 赵琦[1] 宋建华[1] CAO Yingfei;SONG Fangang;TANG Tao;GAO Zhanyu;DENG Lingyu;ZHAO Qi;SONG Jianhua(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46-50,共5页Dongfang Turbine

摘　　要：双机回热系统应用于高参数火力发电机组,能减小回热抽汽换热损失,进一步提高热力系统循环效率。东方研制的首台双机回热机组给水泵汽轮机采用“4抽1排”抽汽背压式设计,同轴驱动给水泵和功率平衡发电机。文章简要论述了该双机回热给水泵汽轮机设计特点及启动运行控制策略。The application of double-turbine regeneration system in high parameter thermal turbine can reduce the heat loss of reheat extraction and further improve the cycle efficiency of the thermal system.The first unit of double-turbine regeneration system developed by DTC adopts a"4 extraction and 1 exhaust"extraction backpressure design,which drives the feed water pump and power balance generator coaxially.This article briefly discusses the design characteristics and start-up operation control strategy of the back pressure extraction steam turbine.

关 键 词：双机回热 抽背式汽轮机 功率平衡电机 汽电双驱 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]