某型蒸汽锅炉锅筒应力应变分析  

Stress and Strain Analysis of a Steam Boiler Drum

作　　者：姜雪松[1] 辛志强 张静 邵亚西[3] 王坤峰[3] 

机构地区：[1]东北林业大学 [2]中船重工第703研究所 [3]哈尔滨工程大学

出　　处：《电站系统工程》2012年第4期8-10,共3页Power System Engineering

基　　金：中央高校基本科研业务费资助项目(DL10BB06)

摘　　要：以某型蒸汽锅炉锅筒为对象,利用有限元分析软件ANSYS对锅筒稳态温度场和应力场进行三维数值模拟,得到了锅筒应变和应力场的分布情况。计算结果表明,锅筒管孔区存在应力集中现象;应力最大值点位于下降管和筒体相贯处,即A点;该区域发生了部分塑性形变。研究结果为锅炉锅筒的安全性评定提供了依据。On the basis of ANSYS software, it studied the numerical simulation on steam boiler drum, obtained the distribution of strain and stress field under the steady-state working condition. The results showed that the high stress gradient exists in the region of the junction of the nozzle and the tube sheets, the largest stress point locked at the axial section of drum hole （generally said A point）, and the plastic deformation exists in partial region. The results provide a basis for the safety assessment of the drum.

关 键 词：蒸汽锅炉 锅筒 有限元分析 应力场 

分 类 号：TK225[动力工程及工程热物理—动力机械及工程]