S形下卧式轴伸贯流泵装置的振动特性分析

为分析S形下卧式轴伸贯流泵装置的振动特性,该文通过物理模型试验,研究了5个叶片安放角时S形下卧式轴伸贯流泵装置的能量性能,在导叶体进口处布置2个振动测点,采用EN900数据采集分析仪和振动速度传感器VS-080对叶片安放角为＋4°与4°时各工况的泵装置模型进行振动测试和分析。测试结果表明：在叶片安放角2°时,S形下卧式轴伸贯流泵装置的最高效率达83.55%,此时流量为289.28L/s,装置扬程为4.438m。在相同叶片安放角时,泵装置在径向的振幅峰峰值Ap-p高于铅垂方向。随泵装置扬程的增大,径向振幅峰峰值呈先减小后增大的趋势,泵装置的不平衡振动频率与转频成倍数函数关系。在扬程相同时,在叶片...

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Bibliographic Details
Published in农业工程学报 Vol. 29; no. 16; pp. 74 - 82
Main Author 杨帆 刘超 汤方平 周济人
Format Journal Article
LanguageChinese
Published 江苏省水利动力工程重点实验室，扬州 225000 2013
扬州大学水利与能源动力工程学院，扬州 225009
Subjects
振动
效率
水力机械
泵
试验
efficiency
效率
泵
振动
试验
model test
pumps
hydraulic machinery
vibrations
水力机械
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2013.16.010

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Summary:为分析S形下卧式轴伸贯流泵装置的振动特性,该文通过物理模型试验,研究了5个叶片安放角时S形下卧式轴伸贯流泵装置的能量性能,在导叶体进口处布置2个振动测点,采用EN900数据采集分析仪和振动速度传感器VS-080对叶片安放角为＋4°与4°时各工况的泵装置模型进行振动测试和分析。测试结果表明：在叶片安放角2°时,S形下卧式轴伸贯流泵装置的最高效率达83.55%,此时流量为289.28L/s,装置扬程为4.438m。在相同叶片安放角时,泵装置在径向的振幅峰峰值Ap-p高于铅垂方向。随泵装置扬程的增大,径向振幅峰峰值呈先减小后增大的趋势,泵装置的不平衡振动频率与转频成倍数函数关系。在扬程相同时,在叶片安放角为＋4°时泵装置在径向的振幅峰峰值较大,不同叶片安放角时泵装置铅垂方向的振幅峰峰值差异性较小。研究结果可为该泵装置的安全稳定运行及同类型泵装置的振动分析提供参考。
Bibliography:11-2047/S
Yang Fan , , Liu Chao , , Tang Fangping , , Zhou Jiren （1. College of Water Resource ＆ Energy Power Engineering, Yangzhou University, Yangzhou 225009, China; 2. Hydrodynamic Engineering Laboratory of Jiangsu Province, Yangzhou 225000, China）
hydraulic machinery; pumps; vibrations; efficiency; model test
A physical model test was adopted to study the energy performance of an S-shaped shaft-extension tubular pumping system at 5 blade angles （θ=-4°, -2°, 0°, ＋2°, ＋4°） by energy tests in the hydrodynamic engineering laboratory of Jiangsu Province, of which total uncertainty is ±0.39%. A signal collecting analyzer EN900 and a vibration velocity transducer VS-080 made by Schenck Process GmbH were used to study the vibration characteristics of model pumping system at blade angle ＋4° and -4° based on different pumping system operating conditions with the pumping system head range from 0.0 m to 7.0 m at the same rotating speed. Two measuring points P1 and P2 were arranged in the inlet of the guide vane. The X d
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2013.16.010