汽轮机当量配汽级组变工况计算方法  

Calculation Method for Equivalent Steam Distribution Stage in a Steam Turbine Under Off-design Condition

作　　者：吴宏亮 孙涛 黄达 万忠海 陈显辉[4] 周帆 Wu Hongliang;Sun Tao;Huang Da;Wan Zhonghai;Chen Xianhui;Zhou Fan(SPIC Jiangxi Electric Power Co.,Ltd.Xinchang Power Generation Company,Nanchang 330117,China;SPIC Jiangxi Electric Power Co.,Ltd.,Nanchang 330096,China;State Grid Jiangxi Electric Power Company Electric Power Research Institute,Nanchang 330096,China;Dongfang Turbine Co.,Ltd.,Deyang 618000,Sichuan Province,China;Nanjing Innavit Automation Technology Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]国家电投集团江西电力有限公司新昌发电分公司,南昌330117 [2]国家电投集团江西电力有限公司,南昌330096 [3]国网江西省电力有限公司电力科学研究院,南昌330096 [4]东方汽轮机有限公司,四川德阳618000 [5]南京英纳维特自动化科技有限公司,南京210000

出　　处：《发电设备》2024年第2期82-85,共4页Power Equipment

摘　　要：将汽轮机主汽阀至一段抽汽口视为当量配汽级组,建立不同总阀位指令下的当量配汽级组特性曲线,进而实现包含总阀位指令信息的汽轮机配汽端特性的变工况计算。经验证,当量配汽级组简化仿真计算与汽轮机配汽端全面仿真计算结果趋于一致。该方法计算简便,符合试验机组的实际特性,满足工程应用的要求。By taking the section of the turbine from the main stop valve to the first extraction point as an equivalent steam distribution stage,characteristic curves for the stage under various total valve position commands were established,so as to realize the calculation of turbine steam distribution characteristics with the total valve position command information under off-design condition.It has been verified the simplified simulation calculation using the equivalent steam distribution stage closely aligns with the comprehensive simulation calculation of the steam distribution.The method computationally convenient,matches the actual characteristics of the experimental unit,and satisfies the requirements for engineering application.

关 键 词：汽轮机 配汽 变工况 总阀位指令 流量特性 顺序阀 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]