Continuous micro mixer

Patent metadata

Field	Value
Publication number	US-10857508-B2
Application number	US-201615566020-A
Country	US
Kind code	B2
Filing date	Apr 13, 2016
Priority date	Apr 13, 2015
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A multimodal micromixer obstacle for intensification of mixing and performing the reaction in a continuous manner is disclosed herein. The micromixer 100 comprises of plurality of inlets, an outlet and a plurality of channels. The end channels—of the channels, have plurality—of converging sections having width, to depth ratio ranging 1:1 to 20:1. The intermediate channels have at least, one obstacle having non-circular shape. Each converging section is incomplete ellipse, prolate or oblate shaped having, angle of curvature in the range of 90 to 270°. Axes of the inlets are coplanar and perpendicular to the channels. All the components of the micromixer are coplanar.

First claim

We claim:

1. A multimodal micromixer comprising a plurality of inlets, an outlet, and a plurality of channels, said plurality of channels having a serpentine nature, wherein end channels of said plurality of channels comprise a plurality of converging sections having width to depth ratio ranging 1:1 to 20:1, a plurality of lamellar flow structures, and intermediate channels having at least one obstacle for intensification of mixing and performing the reaction in a continuous manner and said each lamellar flow structure comprises lamella segments having an incomplete ellipse, prolate or oblate shape with an angle of curvature in the range of 90 to 270°, wherein the lamella segments are machined into two different plates disposed in different planes with every alternate lamella segment shifting planes with a slight overlap to facilitate fluid transfer from one lamella segment to the next lamella segment.

2. The multimodal micromixer according to claim 1 , wherein ratio of radii of curvature of a major axis and a minor axis of the lamella segments is in the range of 0.1 to 10.

3. The multimodal micromixer according to claim 1 , wherein said obstacle in said intermediate channel has a polygonal cross-section.

4. The multimodal micromixer according to claim 1 , wherein said obstacles as well as said converging sections are arranged in periodic or aperiodic sequence.

5. The multimodal micromixer according to claim 1 , wherein intermediate channels having said obstacles have sharp comers.

6. The multimodal micromixer according to claim 1 , wherein axis of said inlets are co-planar and perpendicular to said channels.

7. The multimodal micromixer according to claim 1 , wherein said converging sections, said obstacles, said inlets and said outlet are co-planar.

8. A multimodal micromixer comprising a plurality of channels, lamellar flow structures, and intermediate channels, wherein end channels of said plurality of channels comprise plurality of converging sections having width to depth ratio ranging 1:1 to 20:1, wherein said lamellar flow structures comprise lamella segments having an incomplete ellipse, prolate or oblate shape with an angle of curvature in the range of 90 to 270°, wherein the lamella segments are machined into two different plates disposed in different planes with every alternate lamella segment shifting planes with a slight overlap to facilitate fluid transfer from one lamella segment to the next lamella segment; a ratio of radii of curvature of a major axis and a minor axis of the lamella segments is in the range of 0.1 to 10; said intermediate channels having at least one obstacle for intensification of mixing and performing the reaction in a continuous manner; said obstacle in said intermediate channel has a polygonal cross-section, plurality of inlets being co-planar and perpendicular to said channels; and an outlet wherein said converging sections, said obstacles, said inlets and said outlet are co-planar.

Assignees

• Council Scient Ind Res

Inventors

• Kulkarni Amol Arvind
• Ranade Vivek Vinayak

Classifications

• B01F25/4331 Primary

  Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow · CPC title

• B01F33/30

  Micromixers · CPC title

• B01F25/4338

  Mixers with a succession of converging-diverging cross-sections, i.e. undulating cross-section · CPC title

• B01F2215/0431

  Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof · CPC title

• B01F5/0647 Primary

  Operations & Transport · mapped topic