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US 4,704,204 AGranted
Installation for injecting oxygen into liquid media
OwnerJoseph R. Kaelininventor
Life of this patent
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OwnerJoseph R. Kaelininventor
Estimating the term…
In order to inject oxygen into a liquid, for example, sewage, the installation is provided with an aerating system (2) that is arranged in an aerating basin (1). In order to improve the oxygen injection rate per kilowatt of driving force the aerating system (2) that is connected with a pump (3) in the manner of a water jet pump, the flow cross-section of which, in its air intake area, can be varied so as to change the oxygen injection rate. To this end, the diffusor stage (8) of the aeration system (2) extends along a conical surface. The hollow-configured conical diffusor inner portion (13) is arranged, together with a surface aeration impellor (16), on a common drive shaft (14), and can be moved along its longitudinal axis (15). The diffusor inner portion and the diffusor outer portion (13, 12, respectively) each have a plurality of air injection nozzles that are oriented towards the interior of the diffusor (8) so as to inject oxygen into the sewage that is accelerated and formed into vortices in the diffusor (8).
In an installation for injecting oxygen into liquid media, having a least one aeration device that is arranged in an aeration basin for injecting oxygen or gas containing oxygen into a liquid contained in said basin, and wherein said aerating device is connected to a liquid delivery system and configured with a diffusor in the manner of a water-jet pump, the improvement wherein said diffusor extends along a conical surface and has a conical diffusor inner portion which is adjustable along a common longitudinal axis relative to a conical diffusor outer portion to vary the through-flow-cross-section of said diffusor outer portion;
In a sewage treatment plant injecting oxygen or an oxygen containing gas into a sewage contained in an aerating basin, the improvement comprising using an aerating device connected to a liquid delivery system to take in and inject oxygen, which is configured in the manner of a water-jet pump, and characterized by a flow cross-section in the gas intake area which can be varied to change the oxygen injection rate;
In a sewage treatment plant for injecting oxygen into liquid media, having at least one aeration device that is arranged in an aeration basin for injecting oxygen or gas containing oxygen into a liquid contained in said basin, and wherein said aerating device is connected to a liquid delivery system and configured with a diffusor in the manner of a water-jet pump, the improvement wherein said diffusor extends along a conical surface and has a conical diffusor inner portion which is adjustable along a common longitudinal axis relative to a conical diffusor outer portion, and said diffusor inner portion and said diffusor outer portion are configured as hollow bodies having a plurality of gas injection nozzles extending from the interior of said hollow bodies towards the interior of said diffusor;
Dependencies are inferred from the claim text.