| 对防止低压内缸中分面漏汽措施的探索 |
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| 引用本文： | 肖增弘,王强,孟召军,王中利. 对防止低压内缸中分面漏汽措施的探索[J]. 沈阳工程学院学报(自然科学版), 2010, 6(2): 114-117 |
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| 作者姓名： | 肖增弘 王强 孟召军 王中利 |
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| 作者单位： | 1. 沈阳工程学院,能源与动力工程系,沈阳,110136
2. 铁岭发电厂,生技部,辽宁,铁岭,112003 |
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| 基金项目： | 辽宁省教育厅资助项目 |
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| 摘 要： | 汽轮机低压内缸中分面的漏汽降低了机组的出力及效率,利用ANSYS软件分析了国产引进型300 MW、600 MW机组低压内缸在变工况下因温差产生的热应力,分析了法兰螺栓的预紧力,从而得出低压内缸漏汽的原因,并提出了防止低压内缸中分面漏汽的措施.
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| 关 键 词： | 汽轮机 低压内缸 漏汽 热应力 螺栓预紧力 |
Measures on prevention of horizontal joint leakage in the low-pressure cylinder |
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| XIAO Zeng-hong,WANG Qiang,MENG Zhao-jun,WANG Zhong-li. Measures on prevention of horizontal joint leakage in the low-pressure cylinder[J]. Journal of Shenyang Institute of Engineering(Natural Science Edition), 2010, 6(2): 114-117 |
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| Authors: | XIAO Zeng-hong WANG Qiang MENG Zhao-jun WANG Zhong-li |
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| Affiliation: | XIAO Zeng-hong1,WANG Qiang1,MENG Zhao-jun1,WANG Zhong-li2(1.Department of Power Engineering,Shenyang Institute of Engineering,Shenyang 110136,China,2.Tieling Power Plant,Tieling 112003,China) |
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| Abstract: | Steam leakage of the low pressure cylinder of turbine can reduce unit's output and lower the efficiency.This article uses the ANSYS software to analyze the thermal stress caused by temperature difference in variable working conditions in 300MW and 600MW units' cylinders.The pre-tightening force of flange bolt is analyzed,thus the reason of the low pressure cylinder's steam leakage is obtained and measures to prevent the leakage of low pressure cylinder are proposed. |
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| Keywords: | turbine low pressure cylinder Leakage thermal stress bolt pre-tightening force |
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