Combined centrifugal and vacuum pump

Details Combined centrifugal and vacuum pump Combined centrifugal and vacuum pump

1990-09-07

1992-09-29

Kwon, John T.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

415143, F01D 2532

Patent

active

051510103

ABSTRACT:
A centrifugal pump for pumping gas containing fiber suspensions in the pulp and paper industry includes a centrifugal pumping chamber (54); a centrifugal impeller (60) within the pumping chamber; a liquid ring vacuum pump (70) having a radially vaned vacuum pump rotor (96) therein; an intermediate wall (72) separating the pumping chamber (54) from the vacuum pump (70) which has a non-annular volume (146) therein and which provides a passageway between the centrifugal pumping chamber (54) and the vacuum (70). A conduit (71) within the intermediate wall (72) is connected to the non-annular volume (146) for introducing a liquid into at least one of the non-annular volume and the vacuum pump.

REFERENCES:
patent: 4776758 (1988-10-01), Gullichsen
patent: 4877368 (1989-10-01), Timperi

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