1983, Zeszyt 83-84
On the Influence of Selected Facfors on the Energy Optimization of a Balancing Drum and Disc System
KAZIMIERZ JACKOWSKI, WALDEMAR JĘDRAL
Abstract
In large multistage pumps the axial thrust is balanced mostly by a balancing device cornposed, in general case, of a drum and disc. Several years ago the authors proposed the energy optimization method for the design of such a system enabiing to minimize the leakage and disc friction losses. In this report the influence of the following factors on the optimalization results is discussed:
- adopted method of non-linear programming,
- various geometrical dimensions,
- magnitude of clearances ,
- pressure drop and velocity across the clearar-tce betwęen the disc and its opposite ring,
- accuracy ofevaluation ofaxial thrust and of respectlve coeficients used in calculations.
The method proposed by the authors has been introduced inio the design practice in Poland.
Keywords:
multistage pumps, axial thrust, energy optimization, disc frictionDownload: