某1000 MW超超临界汽轮机转子冷态启动优化  

Cold Start-up Optimization for the Rotor in a 1000 MW Ultra-supercritical Steam Turbine Unit

作　　者：吴凌轩 纪冬梅 Wu Lingxuan;Ji Dongmei(School of Energy and Mechanical Engineering, Shanghai University of Electric Power,Shanghai 200090, China;Shanghai Electric Group Shanghai Electric Machinery Co., Ltd., Shanghai 200240, China)

机构地区：[1]上海电力大学能源与机械工程学院,上海200090 [2]上海电气集团上海电机厂有限公司,上海200240

出　　处：《发电设备》2020年第5期324-328,共5页Power Equipment

基　　金：上海自然科学基金项目(19ZR1420300)。

摘　　要：针对某1000 MW超超临界汽轮机高压转子,基于机组的冷态启动数据,利用ANSYS软件建立有限元分析模型,得到冷态启动过程中的最大应力曲线。通过改变初始进汽温度拟定不同的冷态启动优化方案,并分析了优化效果。结果表明:在启动时间不变的前提下,降低初始进汽温度可以有效增加汽轮机高压转子的寿命。A finite element analysis model was established for the high-pressure rotor of a 1000 MW ultra-supercritical steam turbine using ANSYS software based on cold start-up data of the unit,so as to obtain the maximum stress curve during cold start-up process of the rotor.Different cold start-up optimization schemes were drawn up by changing the initial inlet steam temperature,for which,corresponding optimization effectiveness was analyzed.Results show that under the premise of constant start-up time,the service life of the high-pressure turbine rotor could be increased effectively by reducing the initial inlet steam temperature.

关 键 词：汽轮机 转子 进汽温度 冷态启动 应力 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]