Gas and liquid contact apparatus – Contact devices – Injector type
Patent
1989-11-06
1991-05-07
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Injector type
210220, 2102212, 261123, 366101, 366138, B01F 304
Patent
active
050134892
ABSTRACT:
A gas bubble generator for mixing or promoting turbulence in a liquid medium, particularly sewage or effluent, comprising a collector for gas which collector is submerged in the medium and has an exit from which leads a pipe with a curved part between the exit and a free end of the pipe from which gas escapes as a bubble to surrounding liquid medium. The free end is spaced laterally from the exit, and curvature of the curved part is such so that there is no obstruction of the pipe by the medium, the curvature forming a circular arc of 135.degree. for example. The exit of the gas collector is preferably aligned with a gas inlet to facilitate cleaning of the pipe in situ (i.e., with the generator submerged) by insertion of a flexible rod-like cleaning tool into the gas supply line, straight through the inlet and the exit, and into the pipe. The collector preferably also includes a device for blocking off an internal portion of the collector to enable purging of the pipe by introducing high pressure fluid into the blocked off collector.
REFERENCES:
patent: 2604444 (1952-07-01), Piccardo
patent: 3606984 (1971-09-01), Robertson
patent: 3679187 (1972-07-01), Smith
patent: 3794303 (1974-02-01), Hirshon
patent: 3898308 (1975-08-01), Baum
patent: 4187263 (1980-02-01), Lipert
patent: 4569757 (1986-02-01), Moore
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