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Optimization of dredge and variable displacement pumps

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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    Centrifugal pumps with an adjustable outlet diameter and width of the impeller passage and discharge pipe improve the operation of the netweork and make it possible to reduce energy expenditures at pumping stations by 10–20%.

  2. 2.

    By obtaining clean water directly from the sludge and directly in the pump (without pressure losses) it is possible to solve the problem of protecting pump elements from abrasion by a wall boundary layer without increasing energy expenditures on injecting clean water into the internal cavity of the pump.

  3. 3.

    By fractionation of sludge in pressure settling tanks (without pressure losses) it is possible to use inferior borrow pits near hydrotechnical construction sites for reducing transportation expenditures on delivering inert materials to the site.

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Literature cited

  1. P. R. Khlopenkov, “Optimization of centrifugal pumps,” Gidrotekh. Stroit., No. 10 (1982).

  2. S. Dabrowski and K. Lochowski, “Regulacja dlawieniowa wydajności pomp wirowych odśrodkowych średniobieznych i regulacja zmiana predkości obrotowej przy zastosowaniu regulowanego sprzegla hydrokinetycznego,” Zecz. nauk. P Gdán, No. 315 (1980).

  3. Methodological Recommendations on an Approximate Calculation of the Efficiency of Using an Adjustable Electrical Drive at Pumping Stations [in Russian], Izd. VNII Élektrifikatsii Sel'sk. Khoz. (1980).

  4. N. N. Arshenevskii, Reversible Units of Pumped-Storage Stations [in Russian], Énergiya, Moscow (1977).

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  6. Peter Bagh and R. Reppert, Drehzahl — Regelverfahren und nach dem Verfahren geregeltes Planetengetriebe für eine Kreiselpumpe, FRG Application, cl. F04D 15/00, No. 2952021.

  7. P. R. Khlopenkov, “Dredge pump,” Inventor's Certificate 850924, Byull. Izobret., No. 34 (1981).

  8. P. R. Khlopenkov, “Device for hydraulic filling,” Inventor's Certificate 879028, Byull. Izobret., No. 31 (1981).

  9. S. Settlesbary, J. T. Hamrick, William J. Barr, Martin Summerfield, and Martin Bunn, “Energy — efficient pump utilization,” J. Energy,1, No. 1 (1977).

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Authors
  1. P. R. Khlopenkov
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Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 11, pp. 33–37, November, 1982.

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Khlopenkov, P.R. Optimization of dredge and variable displacement pumps. Hydrotechnical Construction 16, 622–630 (1982). https://doi.org/10.1007/BF01428583

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  • DOI: https://doi.org/10.1007/BF01428583

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