| 600MW机组引风机失速的分析 |
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| 引用本文： | 刘珊伯,束继伟,金宏达,杜利梅,金伟东.600MW机组引风机失速的分析[J].黑龙江电力,2014(2):173-175,178. |
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| 作者姓名： | 刘珊伯 束继伟 金宏达 杜利梅 金伟东 |
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| 作者单位： | [1]黑龙江省电力科学研究院,哈尔滨150030 [2]华电能源股份有限公司哈尔滨第三发电厂,哈尔滨150024 |
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| 摘 要： | 针对某火力发电厂600 MW机组引风机运行过程中振动较大的问题,阐述了静叶可调轴流风机产生失速的机理和原因,测量了不同工况下引风机进出口静压,并计算比较了原烟气系统与临时系统的系统阻力变化,提出了相应的改造措施.测量结果表明,尾部烟道临时系统烟气系统阻力大幅增加,就会造成引风机处于失速区运行,导致振动偏大.引风机系统经改造后,引风机运行正常,减小了尾部烟道烟气系统阻力.
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| 关 键 词： | 烟气系统 流体阻力 轴流风机 静叶 失速 |
Analysis of induced draft fan stall of 600 MW unit |
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| LIU Shanbo,SHU Jiwei,JIN Hongda,DU Limei,JIN Weidong.Analysis of induced draft fan stall of 600 MW unit[J].Heilongjiang Electric Power,2014(2):173-175,178. |
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| Authors: | LIU Shanbo SHU Jiwei JIN Hongda DU Limei JIN Weidong |
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| Affiliation: | 1. Heilongjiang Electric Power Research Institute, Harbin 150030, China;2. Huadian Energy Harbin No. 3 Power Plant, Harbin 150024, China) |
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| Abstract: | Aiming at the large vibration of induced draft fan of the 600 MW unit in a thermal power plant, this paper expounds the mechanism and causes of stall of axial flow fan with adjustable static blades, measures the static pres- sure of the entrance and the exit of induced draft fan under different working condition, and compares the change of system resistance in the original and the temporary flue gas system, and proposes relevant transformation measures. The result shows that the increase of system resistance in temporary tail flue gas system will lead to fan stall and large vibration. The improved induced draft fan system guarantees the normal operation of fan and reduces the system resistance. |
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| Keywords: | flue gas system fluid resistance axial flow fan static blade stalling |
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