| F级燃气轮机高压迷宫密封泄漏特性研究 |
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| 引用本文： | 张成义,冯永志,张春梅,张宏涛.F级燃气轮机高压迷宫密封泄漏特性研究[J].润滑与密封,2012,37(4):106-108. |
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| 作者姓名： | 张成义 冯永志 张春梅 张宏涛 |
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| 作者单位： | 哈尔滨汽轮机厂有限责任公司 黑龙江哈尔滨150046 |
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| 基金项目： | 国家863计划重大项目资助(2008AA05A302) |
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| 摘 要： | 以F级燃气轮机高压迷宫密封为研究对象,研究密封间隙、压比、密封齿厚对迷宫密封泄漏特性的影响规律,采用泄漏系数表征各种影响因素与密封泄漏量的函数关系。结果表明:相同压比条件下,密封间隙增大,泄漏系数增大,且增大的趋势变大;相同密封间隙下,随着压比提高,泄漏系数近似线性的增大;相同间隙和压比下,随着齿厚的减小,泄漏系数减小。
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| 关 键 词： | 泄漏特性 迷宫密封 数值模拟 泄漏系数 |
Investigation of Discharge Behavior in High Pressure Labyrinth Seal of F Class Gas Turbine |
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| Zhang Chengyi
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Feng Yongzhi
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Zhang Chunmei
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Zhang Hongtao.Investigation of Discharge Behavior in High Pressure Labyrinth Seal of F Class Gas Turbine[J].Lubrication Engineering,2012,37(4):106-108. |
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| Authors: | Zhang Chengyi Feng Yongzhi Zhang Chunmei Zhang Hongtao |
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| Affiliation: | Zhang Chengyi Feng Yongzhi Zhang Chunmei Zhang Hongtao (Harbin Turbine Company Limited,Harbin Heilongjiang 150046,China) |
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| Abstract: | The effects of sealing clearance,pressure ratio and seal thickness on the discharge behavior of labyrinth seal were investigated for a high pressure labyrinth seal of F class gas turbine,and the leakage coefficient was adopted to show the relation of seal leakage with all kinds of factors.The results show that the leakage coefficient is increased with the increasing of gap width at the same pressure ratio,and increased linearly with the increasing of pressure ratio at the fixed sealing clearance.The leakage coefficient is decreased with the decreasing of seal thickness at the same pressure ratio and gap width. |
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| Keywords: | discharge behavior labyrinth seal numerical simulation leakage coefficient |
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