Device for stirring a liquid and injecting a gas into said liquid with limited clogging
AssigneesL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude, Centre National De La Recherche Scientifique, Institut National Polytechnique De Toulouse
InventorsStephane Melen, Catherine Xuereb, Martine Poux, Rodolphe Sardeing
Life of this patent
Estimating the term…
Abstract
An apparatus for stirring and injecting a gas into a liquid. A drive device, located above a container containing a liquid, is connected to a vertical output shaft. The shaft has a self-suction turbine at its. The turbine is made of two stacked disks where the surface area of the lower disk is less than the surface area of the upper disk.
Claims9
1-8. (canceled)
An apparatus which may be used for stirring and injecting a gas into a liquid located in a container, wherein said apparatus comprises:
- a) a reactor, wherein said reactor contains a liquid;
- b) a drive device located above said reactor, wherein:
- 1) said drive device comprises a vertical output shaft;
- 2) said output shaft comprises at least one axial-flow moving assembly;
- and
- 3) said axial-flow moving assembly is:
- i) located at a lower end of said output shaft;
- and
- ii) substantially submerged in said fluid;
- c) a cylinder located around said output shaft, wherein:
- 1) said cylinder comprises both an upper and a lower cylinder end;
- and
- 2) said upper cylinder end:
- i) is substantially sealed to said drive device;
- and
- ii) comprises an opening for injecting a gas into an annular gap between said output shaft and said cylinder;
- d) a self-priming impeller, wherein:
- 1) said impeller is submerged in said liquid and is capable of being driven by said output shaft;
- and
- 2) said impeller comprises:
- i) an upper disk, wherein:
- aa) said upper disk is perforated with a central hole;
- bb) the edge of said central hole and said lower cylinder end form an at least partially annular space;
- and
- cc) said liquid is sucked into said impeller through said annular space;
- ii) a lower disk, wherein the surface area of said lower disk is less than the surface area of said upper disk;
- and
- iii) a set of radial vanes located between, and attached to, said upper and said lower disks;
- and
- e) a direction means for directing a gas/liquid dispersion expelled radially from said impeller toward said axial-flow moving assembly.
Dependencies are inferred from the claim text.