Exit Geometry Modifications of Double Volute Centrifugal Pump for Vane Passing Frequency Vibration Resolution: A Case Study

M. Dasuki Yusoff; Meng Hee Lim; M. Rabai Yahaya; Jamaludin Azman

doi:10.4028/www.scientific.net/AEF.16.82

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HomeAdvanced Engineering ForumAdvanced Engineering Forum Vol. 16Exit Geometry Modifications of Double Volute...

Exit Geometry Modifications of Double Volute Centrifugal Pump for Vane Passing Frequency Vibration Resolution: A Case Study

Abstract:

Reliability of centrifugal pump is considered as a main indicator to measure the capability of the pump in performing its operating envelop delivery without any premature failure. Flow induced vibration namely vane passing pressure pulsation is inherent when interaction between impeller vane wakes passes the casing volute leading edge. However, excessive excitation of hydraulic pulsation might expense the pump integrity in term of unsatisfactory unit availability, frequent equipment breakdown and high maintenance recovery cost. This paper shares a case study experienced by the authors in resolving a long outstanding reliability issue for a high energy double volute centrifugal pump through combination of rotating-stationary exit geometry modification towards an acceptable hydraulic pulsation and stable operating pump. This paper also highlights the balanced approach on the site investigation, root cause analysis and practical remedial action through industrial experiential knowledge.

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Periodical:

Advanced Engineering Forum (Volume 16)

Pages:

82-90

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.16.82

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Online since:

April 2016

Authors:

M. Dasuki Yusoff*, Meng Hee Lim, M. Rabai Yahaya, Jamaludin Azman

Keywords:

Double Volute, Hydraulic Pulsation, Radial Gap, Vane Passing Frequency

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* - Corresponding Author

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