| 600MW超超临界汽轮机高压主汽调节联合阀内部流场的数值模拟分析 |
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| 引用本文： | 董建华,刘艳. 600MW超超临界汽轮机高压主汽调节联合阀内部流场的数值模拟分析[J]. 汽轮机技术, 2009, 51(2) |
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| 作者姓名： | 董建华 刘艳 |
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| 作者单位： | 1. 哈尔滨汽轮机厂有限责任公司,哈尔滨,150046
2. 大连理工大学,大连,116000 |
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| 摘 要： | 采用非结构化四面体网格,对某600MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模拟.针对3种不同结构的模型分别进行了计算,分析研究了阀门内部流场的流动特性,以及在主汽阀内加置挡板和滤网对内部流场和阀门损失的影响.
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| 关 键 词： | 主汽调节联合阀 流动特性 数值模拟 |
Numerical Simulations of the Flow Field inside High Pressure Combined Valve of a 600MW Ultra Supercritical Steam Turbine |
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| DONG Jian-hua,LIU Yan. Numerical Simulations of the Flow Field inside High Pressure Combined Valve of a 600MW Ultra Supercritical Steam Turbine[J]. Turbine Technology, 2009, 51(2) |
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| Authors: | DONG Jian-hua LIU Yan |
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| Affiliation: | 1 Harbin Turbine Co.Ltd;Harbin 150046;China;2 Dalian University of Technology;Dalian 116000;China |
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| Abstract: | Unstructured tetrahedral meshes are used to simulate the flow field inside high pressure combined valves of a 600MW ultra supercritical steam turbine under the nominal condition.Three physical modes with different structures are considered.The characteristics of the flow field inside valves are investigated.Effects of a baffle and a filter screen placed in the main steam valve on flow are also discussed in the paper. |
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| Keywords: | combined valve flow characteristics numerical simulation |
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