| 锅炉汽包管接头组合结构的温度分布二维有限元分析 |
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| 引用本文： | 沈月芬,曹子栋.锅炉汽包管接头组合结构的温度分布二维有限元分析[J].西安交通大学学报,1995,29(5):100-105. |
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| 作者姓名： | 沈月芬 曹子栋 |
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| 摘 要： | 用有限元方法对锅炉汽包和下降管组合结构的温度分布进行了计算，计算时考虑了锅炉启停过程中汽水间放热系数不同所引起汽包上下壁温差，以及下降管接头的存在对汽包筒体温度分布的影响，为正确计算锅炉汽包的热应力及其低周疲劳寿命提供了依据。
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| 关 键 词： | 调峰锅炉 有限元 温度场 锅炉 汽包 组合结构 |
TWO-DIMENSIONAL FINITE ELEMENT ANALYSIS OF THE TRANSIENT TEMPERATURE DISTIBUTION OF A STRUCTURE COMPOSED OF A BOILER DRUM SHELL AND ITS TUBULAR JOINT |
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| Shen Yuefen,Cao Zidong,Li Bin,Niu Guoping.TWO-DIMENSIONAL FINITE ELEMENT ANALYSIS OF THE TRANSIENT TEMPERATURE DISTIBUTION OF A STRUCTURE COMPOSED OF A BOILER DRUM SHELL AND ITS TUBULAR JOINT[J].Journal of Xi'an Jiaotong University,1995,29(5):100-105. |
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| Authors: | Shen Yuefen Cao Zidong Li Bin Niu Guoping |
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| Institution: | School of Energy and Power Engineering |
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| Abstract: | The transient temperature distribution of a structure composed of a boiler drum and its tubular joint was calculated with the finite element method.When calculating the tempara ture field during start up and shut down of the boiler,the existence of the tubular joint and the temperature differences from the top to the bottom of the drum inside wall were consid- ered,which turned out to have a great influence on the temperature distribution of the drum shell.The numerical results provide reliable basis for calculations of thermal stress and fa- tigue life of a boiler drum with cyclic loading. |
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| Keywords: | transient temperature distribution boiler drum finite element method |
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