摘要
运用ANSYS对管壳式废热锅炉建立了含有管板及管头高温热防护结构的热端管板及不含高温热防护结构的冷端管板两种有限元模型,分析了高低温管板的温度场及应力场,分别得出了管板上的应力分布及最大应力发生部位。结果表明,采用高温热防护结构可以有效地改善热端管板的应力分布。
Using the ANSYS,the higher and lower temperature tube-sheets of waste heat boiler were established.The higher temperature tube-sheet included high temperature resistant structure.The temperature field and the stress field of two tube-sheets were analyzed respectively.Then the stress distribution of tube-sheets and the placement of the maximum stress were obtained.The results indicated that using the high temperature resistant structure in higher temperature tube-sheet can improve the stress distribution of tube-sheet effectively.
出处
《压力容器》
北大核心
2011年第12期23-29,17,共8页
Pressure Vessel Technology
关键词
废热锅炉
薄管板
高温保护结构
热应力
waste heat boiler
thin tube-sheet
high temperature resistant structure
thermal stress
