Influence of a volute casing on the flow in chambers behind the front and back shroud in the single-stage centrifugal pump

• Autorzy: Najdecki S , Papierski A
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

The results of measurements of the pressure distribution and numerical computations of flows in chambers behind the front and back shroud of the single-stage centrifugal pump with a volute casing are presented. It has been shown how a non-uniform pressure distribution at the impeller exit can influence the flow in chambers behind the front and back shroud. It has been proven that the nature of this flow can influence significantly the magnitude of forces and bending moments on the shaft and the leakage flow through the impeller seal and, consequently, it affects the conditions of an inflow to the impeller.

Słowa kluczowe

EN

centrifugal pump; radial and axial thrust

PL

pompa wirowa; nacisk osiowy

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2008
• Tom: nr 133
• Strony: 255--262
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Najdecki S

• Institute of Turbomachinery Technical University of Lodz

autor

Papierski A

• Institute of Turbomachinery Technical University of Lodz

Bibliografia

• [1] Black, H. F., 1969, Effects of Hydraulic Forces in Annular Pressure Seals on the Vibrations of Centrifugal Pump Rotors, Journal of Mechanical Engineering Science, Mechanical Engineering Publications, Vol. 11 No 2, pp. 206 – 213.
• [2] Guelich, J. F., 1999, Kreiselpumpen. Ein Handbuch fuer Entwicklung, Anlagenplanung und Betrieb, Springer-Verlag Berlin Heidelberg 1999.
• [3] Guelich, J. F., Jud, W., Hughes, S. F., 1987, Review of parameters influencing hydraulic forces on centrifugal impellers, Proceedings - Institution of Mechanical Engineers, Institution of Mechanical Engineers, Vol. 201 No A3, pp163 – 174.
• [4] Black, H. F., 1969, Effects of Hydraulic Forces in Annular Pressure Seals on the Vibrations of Centrifugal Pump Rotors, Journal of Mechanical Engineering Science, Mechanical Engineering Publications, Vol. 11 No 2, pp. 206 – 213.
• [5] Jędral, W., 2001, Pompy wirowe, Wydawnictwo Naukowe PWN, Warszawa.
• [6] San Andres, L., 2006, Introduction to Pump Rotordynamics, Educational Notes, NATO Reasearch & Technology Organisation –EN-AVT-143 pp. 9-1 – 9-26.
• [7] Stepanoff, A.J., 1959 Radial- und Axialpumpen. Theorie, Entwurf, Anwendung, Springer-Verlag, Berlin.
• [8] Vance, J. M., 1988, Rotordynamics of Turbomachinery, John Wiley & Sons, New York.