汽轮机横置静叶有限元分析及安全性评估  

Finite Element Analysis and Safety Assessment of Steam Turbine Horizontal Stator Blades

作　　者：马义良[1] 翁振宇[1] 李宇峰[1] 刘洋[1] 初世明[1] MA Yiliang;WENG Zhenyu;LI Yufeng;LIU Yang;CHU Shiming(Harbin Turbine Co.,Ltd.,Harbin 150046,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《热力透平》2022年第1期60-64,共5页Thermal Turbine

摘　　要：基于有限元方法分析了汽轮机横置静叶的安全性。为了得到更为精确的仿真计算结果,引入横置静叶-汽缸联合模型进行计算。分析中包含热-流-固耦合分析,并考虑结构高温蠕变-塑变影响,建立了准确、高效的横置静叶安全性分析方法,为后续横置静叶安全性评估提供了有价值的参考。Using finite element method simulation,a safety analysis on the horizontal stator blades of a steam turbine was carried out.To obtain a calculation result with high precision and reliability,the compound model combining horizontal stator blades and inner casing were introduced.With the consideration of thermo-fluid-structure coupling and high temperature creep-elastic equivalent strain,an efficient and effective safety assessment method was established,which can provide significant references for further safety assessment on horizontal stator blades.

关 键 词：横置静叶 红套环内缸 高温弹塑性 蠕变 有限元 

分 类 号：TK263.4[动力工程及工程热物理—动力机械及工程]