Liquid purification or separation – Structural installation – Closed circulating system
Patent
1993-01-22
1995-04-04
Lithgow, Thomas M.
Liquid purification or separation
Structural installation
Closed circulating system
210177, 210180, 210199, 208185, 208188, 208208R, 95246, 95249, 95263, 96194, 96202, 203 91, 159 471, 261DIG75, C10M17502, B01D 1900, B01D 306
Patent
active
054034752
ABSTRACT:
In a multi-pass system for purifying oil or other liquids, an improved apparatus and method for mixing air with the contaminated liquid for separation after a phase change from liquid to gas. The contaminated liquid is drawn from a reservoir by a pump, filtered, and heated, and atmospheric air is induced into the contaminated liquid downstream of the heater by an eductor, which promotes the phase change from liquid to vapor. The liquid/contaminant mix, which now includes entrained air, is passed immediately through a second eductor, the compressibility of the air in the mix, followed by expansion of the compressed air as the mix exits the second eductor, causing intimate contact of air and contaminant, thereby promoting the stripping of the contaminant from the liquid. The air/liquid/contaminant mix is then routed to a level controlled separation tank, water vapor, contaminants, and condensate being released from the tank in the space above the pooled liquid. Purified, dry liquid is drawn from the tank by a second pump and delivered back to the reservoir.
REFERENCES:
patent: 1657941 (1928-01-01), Sharples et al.
patent: 1735546 (1929-11-01), Rath
patent: 1761152 (1930-06-01), Pew, Jr.
patent: 1823185 (1931-09-01), Belden
patent: 1898168 (1933-02-01), Belden
patent: 1988773 (1935-01-01), Buender
patent: 2477318 (1949-07-01), Stevenson
patent: 2494392 (1950-01-01), Kirkbride
patent: 2522378 (1950-09-01), Kirkbride
patent: 2639289 (1953-05-01), Vogel
patent: 2738877 (1956-03-01), Beach
patent: 2765045 (1956-10-01), Meyers
patent: 2765259 (1956-10-01), Schwalze
patent: 2890765 (1959-06-01), Friedell
patent: 2948677 (1960-08-01), Austin
patent: 3369735 (1968-02-01), Hoffmeister
patent: 3481113 (1969-12-01), Burnham
patent: 3774846 (1973-11-01), Schurig
patent: 3977972 (1976-08-01), Bloch
patent: 4146475 (1979-03-01), Forsland
patent: 4545892 (1985-10-01), Cymbalisty
patent: 4680091 (1987-07-01), Altmann et al.
patent: 4690764 (1987-09-01), Okumura
patent: 4861352 (1989-08-01), Cheng
patent: 4938876 (1990-07-01), Ohsol
patent: 5092981 (1992-03-01), Russo
patent: 5156747 (1992-10-01), Weker
Abstract of Japan Patent 59-45398; Purification of Lubricating Oil; date Mar. 14, 1984; (abstract only).
Penberthy Application Report for Oil/Water Separation, Section 1000 Application Report No. 1774; issued Dec. 1989.
Hyfroscav Oil Purifier, Allen Filters Incorporated, Springfield Missouri; Brochure.
Pardee Engineering: Mixing Air or Gas into a Liquid Using Pardee Eductor; May 1972.
LandOfFree
Liquid decontamination method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid decontamination method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid decontamination method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2378923