Process and apparatus for ensuring the operability of gas seals

Details Process and apparatus for ensuring the operability of gas seals Process and apparatus for ensuring the operability of gas seals

1996-06-24

1998-06-16

Freay, Charles G.

Pumps

Motor driven

Electric or magnetic motor

417201, 417366, 277 3, 277 15, F04B 3504

Patent

active

057659982

ABSTRACT:
A process for ensuring the operability of gas seals in turbocompressors, especially turbocompressors with a higher operating pressure and a higher shutdown pressure which have gas-lubricated sliding-ring seals for sealing the shaft lead-throughs and in which cleaned gas is fed to the gas-lubricated sliding-ring seals from a higher-pressure tapping location proceeding from the turbocompressor. While the turbocompressor is shut down the pressure of the gas outside of the turbocompressor is increased above the pressure level prevailing during shutdown using a pressure booster unit, and the gas is fed in a cleaned state to the gas-lubricated sliding-ring seals.

REFERENCES:
patent: 3508758 (1970-04-01), Strub
patent: 4993917 (1991-02-01), Kulle et al.
patent: 5141389 (1992-08-01), Bear et al.
patent: 5348456 (1994-09-01), Kun et al.
patent: 5412977 (1995-05-01), Schmohl et al.
patent: 5632492 (1997-05-01), Lehmann et al.

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