Injectors and their use in gassing liquids

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow

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Details

210 63R, 210220, 261 77, 261 78A, 261DIG75, C02B 308, C02C 112

Patent

active

041629701

ABSTRACT:
In an injector for the dispersion of a gas into a liquid and comprising a gas inlet, a liquid inlet, and a mixing chamber communicating with said inlets and having an inlet and an outlet, the improvement wherein the inlet of said mixing chamber is substantially round in cross-section and the outlet is substantially slit-shaped, whereby the kinetic energy of propulsion can be utilized with high efficiency to produce very fine gas bubbles. Advantageously the cross-sectional area at the outlet of the mixing chamber is about 5 to 25 times the cross-sectional area of the liquid nozzle throat, the liquid nozzle has a throat diameter d diverging to its discharge at an angle of about 5.degree. to 10.degree., the mixing chamber beginning at a distance from about 1 to 3 d from the end of the inlet, the inlet of the mixing chamber being circular of a diameter of about 3 d, the mixing chamber having a length of about 5 d to 20 d, and the height of the slit being about 1 d. The injector is especially suited for use in treating liquid effluents and in fermentation processes.

REFERENCES:
patent: RE20488 (1937-08-01), Zinkil
patent: 1417146 (1922-05-01), Dederich et al.
patent: 2272818 (1942-02-01), Petroe
patent: 2883169 (1959-04-01), Daman
patent: 3938738 (1976-02-01), Nagel et al.

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