| 相图及方差在注水泵故障诊断中的应用 |
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| 引用本文： | 田立柱,张来斌,王朝晖.相图及方差在注水泵故障诊断中的应用[J].中国石油大学学报(自然科学版),2003,27(4). |
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| 作者姓名： | 田立柱 张来斌 王朝晖 |
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| 作者单位： | 石油大学机电工程学院,北京,102249 |
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| 摘 要： | 以混沌理论为基础 ,利用相图分析方法研究了注水泵机组状态由正常到分岔、再到混沌的演化过程 ,得到了振动信号相图与方差值之间的对应关系。提出了用相图定性地判断离心式注水泵机组是否存在故障的方法 ,该方法解决了常规诊断方法难以解决的问题。利用辽河油田欢喜岭采油厂和曙光采油厂的注水泵机组的振动数据进行实验 ,取得了良好效果。将该方法与其他参数相结合 ,可以提高诊断精度 ,为大型离心式设备的故障诊断提供了一条有效途径。
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| 关 键 词： | 相图 方差 混沌理论 注水泵 故障诊断 |
Application of phase portrait and variance to fault diagnosis of water injection pump |
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| TIAN Li-zhu,ZHANG Lai-bin and WANG Zhao-hui. College of Mechanical and Electronic Engineering in the University of Petroleum,China,Beijing.Application of phase portrait and variance to fault diagnosis of water injection pump[J].Journal of China University of Petroleum,2003,27(4). |
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| Authors: | TIAN Li-zhu ZHANG Lai-bin and WANG Zhao-hui College of Mechanical and Electronic Engineering in the University of Petroleum China Beijing |
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| Institution: | TIAN Li-zhu,ZHANG Lai-bin and WANG Zhao-hui. College of Mechanical and Electronic Engineering in the University of Petroleum,China,Beijing 102249 |
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| Abstract: | The water injection pump units are widely used in the production of oilfields. Based on the chaos theory, the evolvement state of water injection pump units from normal to bifurcation and then to chaos was researched. The corresponding relation between phase portrait and variance of vibration signal was obtained. A new method for judging qualitatively pump fault with phase portrait was presented. This method was tested using the vibration data of water injection pump units in Liaohe Oilfield, and a good result has been obtained. The phase portrait and variance combined with other characteristic parameters can effectively improve the diagnosis precision. |
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| Keywords: | phase portrait variance chaos theory water injection pump fault diagnosis |
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