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High Vibration Problem Resolution in Centrifugal Pump through Design Change
2016
The case study is about single stage API BB2 pump. Pump operates at the temperature of 355 degree C (671 degree F), rated for pumping 442 m3/hr of Hydro-treated VGO (Vacuum Gas Oil) and is driven by a steam turbine. Pump bearing housing at Drive End (DE) side started exhibiting intermittent high vibrations during commissioning phase. This resulted in repeated failure of DE bearing and damage to bearing housing. Root cause was analyzed as uneven expansion of pump casing during pump warm-up,
doi:10.21423/r1rd7w
fatcat:eqz7wve3tjgsflkdln3u2jh3tm