| 大型汽轮机调节级动叶栅温度场分析 |
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| 引用本文： | 张瑞青. 大型汽轮机调节级动叶栅温度场分析[J]. 科技信息, 2012, 0(29): 10+21-10,21 |
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| 作者姓名： | 张瑞青 |
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| 作者单位： | 沈阳工程学院能源与动力工程系 |
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| 基金项目： | 沈阳工程学院科技基金项目(LGQN-1013)资助 |
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| 摘 要： | 超临界汽轮机调节级承担着较大的焓降,温度梯度更大,会引起高压缸各级相当大的热应力和热变形,特别是调节级动叶栅及调节级处的转子表面的温度变化较为剧烈,这将影响机组的启停及变工况速度,不利于机组的调峰。而本文以某600MW超超临界汽轮机为例,建立了调节级动叶栅的有限元分析模型,模拟出整个动叶栅及转子表面的温度分布图,为研究超超临界汽轮机各级叶片和转子热应力的分析提供了理论基础,并为机组的启动优化提供了参考。
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| 关 键 词： | 超超临界 调节级 动叶栅 温度场 |
Temperature Field Analysis of Governing Blades of Ultra-supercritical Turbine |
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| ZHANG Rui-qing. Temperature Field Analysis of Governing Blades of Ultra-supercritical Turbine[J]. Science, 2012, 0(29): 10+21-10,21 |
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| Authors: | ZHANG Rui-qing |
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| Affiliation: | ZHANG Rui-qing(Shenyang Institute of Engineering,Energy and Power Engineering Department,Shenyang Liaoning,110136,China) |
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| Abstract: | The supercritical units and even ultra-supercritical turbines have more enthalpy drop and temperature gradient.Taking a 600MW ultra-supercritical steam turbine as an example in this paper,the finite element analysis model of governing blade was built by the finite element software,and temperature field was simulated.By the result,we can know which part of the governing blade suffers largest thermal stress. |
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| Keywords: | Ultra-supercritical turbine Governing stage Blade Temperature field |
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