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Fault diagnosis for a booster pump unit

机译：增压泵单元的故障诊断

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摘要

Condition monitoring and diagnostic engineering is a course that is well recognized by academics. It is offered to students across the globe who want exposure to instrumentation, data acquisition and processing. This paper introduces the technique of condition monitoring to budding engineers, from its conception to the present state of development, through a case study. An experimental investigation is highlighted in which the vibration condition of booster pump unit is monitored; the unit is a part of boiler feed pump train of a large thermal power plant The booster pump is driven by a 3500 kW, 1440 rpm motor. The motor, along with the booster pump, is supported by four bearings. Tri-axial measurements were made at the bearing supports for 12 months. Root mean square values of displacement and velocity were measured along the horizontal, vertical and axial directions. The experimental data are plotted on a time domain for graphical analysis. Based on the experimental data, faults are diagnosed using ISO standards and causes are predicted. It is observed that the front and rear bearings of the booster pump experienced excess vibration. The work is concluded by way of suggesting remedial measures to ensure the vibration intensity at the said points falls within safe limits.
机译：状态监测和诊断工程是一门学术界公认的课程。它面向希望接触仪器，数据采集和处理的全球学生。通过案例研究，从概念到现状，向新兴工程师介绍状态监视技术。重点进行了实验研究，其中监测了增压泵单元的振动状况。该单元是大型火力发电厂锅炉给水泵机组的一部分。增压泵由3500 kW，1440 rpm的电动机驱动。电机和增压泵由四个轴承支撑。在轴承座上进行了12个月的三轴测量。沿水平，垂直和轴向方向测量位移和速度的均方根值。将实验数据绘制在时域上以进行图形分析。根据实验数据，使用ISO标准诊断故障并预测原因。可以观察到，增压泵的前轴承和后轴承承受了过度的振动。通过建议采取补救措施以确保上述点处的振动强度落在安全范围内来完成这项工作。

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