Micromixer
First Claim
1. Static micromixer with supply chambers for at least two fluids to be mixed, from which microchannels lead to a mixing chamber, wherein said microchannels are arranged in at least two adjacent supply elements, characterized in that the supply elements (2) are wedge-shaped plates, which can be assembled to form at least one ring sector that surrounds the mixing chamber (5) in a curve, and the microchannels (30) provided for each fluid form a symmetrical bifurcation cascade comprising at least two stages i (i=1 to n, where n≧
- 2).
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Accused Products
Abstract
Micromixers constitute a main component of microreactors that have three-dimensional microstructures in a fixed matrix, in which chemical reactions take place. In said micromixer, fluids from their respective supply chambers are divided into spatially separated fluid streams using a network of microchannels allocated to the respective streams. Said streams then emerge as jets with identical volumetric flows for each fluid into a mixing chamber. The invention aims to ensure that identical volumetric flows are achieved for each fluid at the respective microchannel outflow and to produce a micromixer with a simple, compact construction. Wedge-shaped plates can be used as the supply elements (2a-d). Said plates can be assembled to form at least one ring sector which surrounds the mixing chamber (5) in the form of a curve. Alternatively, planar plates can be used which comprise a cavity in their central region, into which the microchannels (31-34) provided for each fluid form one or more symmetrical bifurcation cascades (3) comprising at least two stages. The micromixer can be used in microreactors, for example in the field of combined chemistry, for creating emulsion and gaseous/liquid dispersions and for gas-phase catalysis.
210 Citations
22 Claims
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1. Static micromixer with supply chambers for at least two fluids to be mixed, from which microchannels lead to a mixing chamber, wherein said microchannels are arranged in at least two adjacent supply elements, characterized in that
the supply elements (2) are wedge-shaped plates, which can be assembled to form at least one ring sector that surrounds the mixing chamber (5) in a curve, and the microchannels (30) provided for each fluid form a symmetrical bifurcation cascade comprising at least two stages i (i=1 to n, where n≧
- 15. Static micromixer with supply chambers for at least two fluids to be mixed, from which microchannels lead to a mixing chamber, wherein said microchannels are arranged in at least two supply elements, which are directly superposed or are spaced apart from one another by one or more spacer elements, characterized in that the supply elements (2) are flat plates which are provided with an opening (7) in their central region, such that the stacked plates form the mixing chamber (5), and the microchannels (30) provided for each fluid form one or more symmetrical bifurcation cascades comprising at least two stages i (i=1 to 1, where n≧
Specification