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Applications Using Dry Gas Seals to Control Axial Shaft Loads in Centrifugal Compressors FREE

[+] Author Affiliations
C. C. Bear, S. W. Gibson

Novacorp International Consulting, Inc.

Paper No. 92-GT-104, pp. V003T07A010; 8 pages
doi:10.1115/92-GT-104
From:
  • ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Cologne, Germany, June 1–4, 1992
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7895-8
  • Copyright © 1992 by ASME

abstract

Dry gas seal technology has developed significantly over the past two decades. In addition to advances in standard seal technologies, alternate configurations of dry gas seals within the compressor have provided compressor efficiency improvements among other benefits. This paper describes the innovative application of dry gas seals in the reduction and control of axial shaft forces in pipeline gas compressors.

By uniquely configuring the dry seals, the balance piston was removed from a beam type compressor, resulting in improvement of the compressor efficiency. In addition, the maximum axial forces in an overhung unit were substantially lowered, eliminating full pressure start-up problems, and allowing the practical installation of magnetic bearings. In both beam and overhung compressor applications, these dry seals combined with a control system reduce axial forces on the shaft to zero under most operating conditions.

Copyright © 1992 by ASME
This article is only available in the PDF format.

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