Vacuum jet pump for recovering a mixed fluid of gas and liquid c

Details Vacuum jet pump for recovering a mixed fluid of gas and liquid c Vacuum jet pump for recovering a mixed fluid of gas and liquid c

1996-03-27

1997-03-18

Thorpe, Timothy

Pumps

One fluid pumped by contact or entrainment with another

Jet

417151, 239433, F04F 544

Patent

active

056116730

ABSTRACT:
To ensure the effective recovery of the condensate from steam-using apparatus, together with leaked steam from the trap and residual air in the piping, a condensate recovering vacuum pump is equipped with a jet pump comprising a vacuum chamber into which a condensate inlet port opens, a convergent cylindrical segment opening into the vacuum chamber and having a constricting cross-sectional area, a throat segment adjoining the convergent cylindrical segment and having a substantially uniform cross-sectional area, a divergent segment flaring from the throat segment, and a nozzle having an orifice at the tip thereof that protrudes somewhat into the convergent cylindrical segment from the side of the vacuum chamber, with the inside wall of the tip of the nozzle flaring so that a jet stream expelled therefrom diverges toward the internal surface thereof near the rear end of the throat segment. The jet pump is disposed so that the feedwater ejected therefrom issues forth upward.

REFERENCES:
patent: 919266 (1909-04-01), Tomlinson
patent: 1751719 (1930-03-01), Uhri
patent: 2382391 (1945-08-01), Berman
patent: 2707021 (1955-04-01), Harris
patent: 2802337 (1957-08-01), Bunch
patent: 3445335 (1969-05-01), Gluntz
patent: 4151259 (1979-04-01), Fisher
patent: 4482299 (1984-11-01), Eulass
patent: 4690333 (1987-09-01), Johansson
patent: 4834132 (1989-05-01), Sasaki et al.
patent: 4846617 (1989-07-01), Ehrhardt
patent: 4847043 (1989-07-01), Gluntz

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