| 双吸离心风机入口预旋气流对风机性能的影响 |
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| 引用本文： | 魏健鹏,刘吉祥.双吸离心风机入口预旋气流对风机性能的影响[J].发电设备,2008,22(6). |
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| 作者姓名： | 魏健鹏 刘吉祥 |
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| 作者单位： | 甘肃电力科学研究院,甘肃,兰州,730050 |
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| 摘 要： | 针对某电厂300 MW机组冷一次双吸离心风机在调试期间出现配套电机电流特性异常的问题,从风机预旋机理出发,分析了由于将入口调节挡板旋向装反造成的电机电流特性异常情况。将风机挡板旋向调整为与风机叶轮旋向一致后,电机特性恢复了正常。
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| 关 键 词： | 能源与动力工程 发电厂 冷一次风机 特性异常 预旋机理 故障分析 |
Influence of Inlet Air Flow Prerotation on Performance of Double-Sided Centrifugal Air Fans |
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| WEI Jian-peng,LIU Ji-xiang.Influence of Inlet Air Flow Prerotation on Performance of Double-Sided Centrifugal Air Fans[J].Power Equipment,2008,22(6). |
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| Authors: | WEI Jian-peng LIU Ji-xiang |
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| Abstract: | Based on the prerotation mechanism of air fans,an analysis was made on the abnormal current characteristics of a motor matching for a double-sided centrifugal type primary air fan of a 300 MW unit during commissioning.The trouble was found to be caused by inversely installed inlet air damper.By turning the rotation of the damper into same direction as the air fan wheel,current characteristics of the motor get right. |
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| Keywords: | energy and power engineering power plant primary air fan abnormal characteristic prerotation mechanism trouble analysis |
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