超临界再热型双抽背压式汽轮机高压缸夹层加热系统优化研究  

Research on High Pressure Cylinder Interlayer Heating System Optimization for Supercritical Reheat Double Suction Back Pressure Steam Turbine

作　　者：王勇 马聪 魏光 刘立成[2] 罗方[3] WANG Yong;MA Cong;WEI Guang;LIU licheng;LUO Fang(Tianjin Developement Area Branch of Huadian International Electric Power Co.,Ltd.,Tianjin 300270,China;Northwest Electric Power Design Institute,Xi'an,Shaanxi 710075,China;Dongfang Turbine Co., Ltd., Deyang,Sichuan 618000,China)

机构地区：[1]华电国际电力股份有限公司天津开发区分公司,天津300270 [2]西北电力设计院,陕西西安710075 [3]东方汽轮机有限公司,四川德阳618000

出　　处：《东北电力技术》2021年第9期37-39,共3页Northeast Electric Power Technology

基　　金：中国华电集团有限公司重大科技项目计划(CHDKJ19-01-88)。

摘　　要：原汽轮机高压缸夹层加热系统采用传统设计方案,夹层加热汽源来自辅汽联箱,实际运行中应用效果较差。对高压缸夹层加热系统进行优化,增加1路由主蒸汽管道来的汽源,可有利于汽轮机胀差控制并达到最佳的启动效果。The original steam turbine high-pressure cylinder interlayer heating system adopts the traditional design scheme.The interlayer heating steam source comes from the auxiliary steam header,and the application effect is poor in actual operation.Through optimizing the high-pressure cylinder interlayer heating system and adding one steam source from the main steam pipeline,it facilitates the control of the steam turbine differential expansion and achieves the best start-up effect.

关 键 词：汽轮机 夹层加热 胀差 减温减压 

分 类 号：TK269[动力工程及工程热物理—动力机械及工程]