CN214514213U - Continuous flow micro mixer - Google Patents
Continuous flow micro mixer Download PDFInfo
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- CN214514213U CN214514213U CN202120475014.4U CN202120475014U CN214514213U CN 214514213 U CN214514213 U CN 214514213U CN 202120475014 U CN202120475014 U CN 202120475014U CN 214514213 U CN214514213 U CN 214514213U
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- mixing
- channel
- continuous flow
- reaction medium
- micromixer
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Abstract
The present application relates to the field of microsystems technology, and in particular to a continuous flow micromixer. The continuous flow micromixer provided by the application comprises a micromixing channel, wherein the micromixing channel is provided with a mixed medium outlet and at least two reaction medium inlets; the micro-mixing channel comprises a plurality of mixing units, and each mixing unit is divided into a Tesla valve structure cavity by a flow dividing column. Namely, the continuous mixing process is adopted to replace the intermittent mixing process, the safety is high, and the property change of the product and the distributed production mode are avoided; meanwhile, the reaction medium after impact mixing collides with the shunt columns in each mixing unit, so that the direct impact of the reaction medium and the wall surfaces of the mixing units is avoided, and the structural material is prevented from being damaged; the mixing unit is divided into a Tesla valve structure by utilizing the flow dividing column, and the reaction medium is guided to generate a vortex in the mixing process through the wall surface of the mixing unit and the gravity and the centrifugal force of the reaction medium, so that the mixing degree of the reaction medium is increased.
Description
Technical Field
The present application relates to the field of microsystems technology, and in particular to a continuous flow micromixer.
Background
The micro-chemical equipment has the advantages of simple structure, no amplification effect, easy control of operating conditions, internal safety and the like, and has attracted great attention of numerous researchers including chemical engineering and related field persons, wherein a micro-system in the micro-chemical equipment takes a micro-mixer as a core. Micromixers generally refer to small reaction systems manufactured by micromachining and precision machining, with the microchannel dimensions of the fluids in micromixers being in the order of sub-microns to sub-millimeters.
The chaotic multistage eddy current microreactor in the prior art is composed of a plurality of eight-Diagram positive fish type micro reaction chambers which are sequentially connected end to end, a reaction medium is pressurized and sprayed to impact the wall surface of the reaction chamber through a thin neck, the structural material of the wall surface is easily damaged, and meanwhile, the wall surface of the eight-Diagram positive fish type reaction chamber is utilized to mix with eddy current generated by the reaction medium under the guidance of centrifugal force, so that the mixing method has low energy utilization rate and unsatisfactory mixing degree.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the embodiments of the present application is to provide a continuous flow micromixer, which can effectively solve the above technical problems.
In a first aspect, the present invention provides a continuous flow micromixer, comprising a micromixing channel, said micromixing channel having a mixed medium outlet and at least two reaction medium inlets, said mixed medium outlet and said reaction medium inlets being disposed at both ends of said micromixing channel; wherein the micro-mixing channel comprises a plurality of mixing units, and each mixing unit is divided into a Tesla valve structure cavity by a flow dividing column.
In an alternative embodiment according to the first aspect, the continuous flow micromixer comprises a base plate on which the micromixer channels are disposed. It should be noted that, in this embodiment, the continuous flow micro mixer includes a bottom plate, and the micro mixing channel is disposed on the bottom plate, so that the micro mixing channel is conveniently disposed, and the processing process is simpler.
In an alternative embodiment according to the first aspect, the base plate is made of one or more of stainless steel, ceramic, silicon carbide. It should be noted that, in this embodiment, the bottom plate is made of one or more materials of stainless steel, ceramic, and silicon carbide, so that the bottom plate has a better corrosion resistance, and further, the structural stability of the bottom plate is ensured, and the stability of the medium reaction is ensured.
In an alternative embodiment according to the first aspect, the continuous flow micromixer further comprises a cover plate, the cover plate being removably attached to the base plate. It should be noted that, in this embodiment, the continuous flow micro mixer further includes a cover plate, and the cover plate is detachably connected to the bottom plate, so that after the user uses the mixer for a period of time, the user can detach the cover plate to further clean, maintain or maintain the micro mixing channel disposed on the bottom plate.
In an alternative embodiment according to the first aspect, the cover plate is connected to the base plate by means of compression screws and flange nuts. It should be noted that, in this embodiment, the cover plate is connected to the base plate through the compression screw and the flange nut, the compression screw and the flange nut are commonly used connecting pieces, and the cover plate is connected to the base plate through the compression screw and the flange nut, so that the connection is easy to achieve, the connection structure is simple and easy to operate, the matching performance of parts is improved, and the cost is reduced.
In an alternative embodiment according to the first aspect, a sealing ring is further provided between the cover plate and the base plate, the sealing ring being arranged around the micro-mixing channel. It should be noted that, in this embodiment, a sealing ring is further disposed between the cover plate and the bottom plate, and the sealing ring is disposed around the micro-mixing channel, so that the cover plate and the bottom plate are hermetically connected to each other, and overflow of the reaction medium in the micro-mixing channel is avoided.
In an alternative embodiment according to the first aspect, the micro-mixing channel is arranged in a meandering serpentine shape. It should be noted that, in this embodiment, the micro-mixing channel is arranged in a zigzag spiral manner, so that the length of flowing through is increased in a limited space, and thus, the media can be mixed sufficiently.
In an alternative embodiment according to the first aspect, the micro-mixing channel is provided with two inlets for the reaction medium, the two inlets for the reaction medium being arranged at an included angle and converging to the micro-mixing channel. It should be noted that, in this embodiment, the micro mixing channel includes two reaction medium inlets, the two reaction medium inlets are disposed at an included angle and converge in the micro mixing channel, so that two reaction media flowing at high speed collide at a convergence position to accelerate mixing of the reaction media, and the collision between the mixed reaction media and the flow dividing column in each mixing unit is avoided, so as to avoid direct collision between the reaction media and the wall surface of the mixing unit and damage to the structural material.
In an alternative embodiment according to the first aspect, the flow distribution post is provided with a tip at one end and a circular arc-shaped water drop-shaped structure at the other end. It should be further noted that, in this embodiment, the diversion column is set to be a water drop structure with one end being a tip and the other end being an arc shape, so that the media are converged at the tip, separated at the arc shape, and circulated and reciprocated to achieve sufficient mixing.
In an alternative embodiment according to the first aspect, the flow channels constituting the micro-mixing channel are dimensioned to be less than 3000 μm. It should be noted that, in the present embodiment, the size of the flow groove constituting the micro-mixing channel is set to be smaller than 3000 μm, which facilitates the mixing of the media. It will be appreciated that the dimensions of the flow channels that make up the micro-mixing channel are not limited and in other embodiments, the flow channels may be sized to other suitable values depending on the needs of the user.
Compared with the prior art, the continuous flow micro mixer at least has the following beneficial effects:
the continuous flow micro mixer provided by the application comprises a micro mixing channel, wherein the micro mixing channel is provided with a mixed medium outlet and at least two reaction medium inlets, and the mixed medium outlet and the reaction medium inlets are arranged at two ends of the micro mixing channel; the micro-mixing channel comprises a plurality of mixing units, and each mixing unit is divided into a Tesla valve structure cavity by a flow dividing column. Namely, the continuous mixing process is adopted to replace the intermittent mixing process, the safety is high, and the property change of the product and the distributed production mode are avoided; meanwhile, the reaction medium after impact mixing collides with the shunt columns in each mixing unit, so that the direct impact of the reaction medium and the wall surfaces of the mixing units is avoided, and the structural material is prevented from being damaged; the mixing unit is divided into a Tesla valve structure by utilizing the flow dividing column, and the reaction medium is guided to generate a vortex in the mixing process through the wall surface of the mixing unit and the gravity and the centrifugal force of the reaction medium, so that the mixing degree of the reaction medium is increased.
Drawings
The present application will be described in more detail below on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the overall structure of a continuous flow micromixer according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a base plate of a continuous flow micromixer in an embodiment of the present application;
FIG. 3 is a schematic diagram of the vortex formation of the reaction medium in the micro-reaction channel in the example of the present application.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Reference numerals:
10-continuous flow micromixer; 11-a base plate; 111-a micro-mixing channel; 113-mixed media outlet; 115-reaction medium inlet; 116-a seal groove; 12-a split-flow column; 13-a cover plate; 131-a compression screw; 133-flange nut; 135-threaded hole; 15-sealing ring.
Detailed Description
The present application is further described below in conjunction with the detailed description. Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
For the sake of brevity, only some numerical ranges are specifically disclosed herein. However, any lower limit may be combined with any upper limit to form ranges not explicitly recited; and any lower limit may be combined with any other lower limit to form a range not explicitly recited, and similarly any upper limit may be combined with any other upper limit to form a range not explicitly recited. Furthermore, each separately disclosed point or individual value may itself, as a lower or upper limit, be combined with any other point or individual value or with other lower or upper limits to form ranges not explicitly recited.
In the description herein, it is to be noted that, unless otherwise specified, "above" and "below" are inclusive and "one or more" mean "several" two or more.
Unless otherwise indicated, terms used in the present application have well-known meanings that are commonly understood by those skilled in the art. Unless otherwise indicated, the numerical values of the parameters mentioned in the present application can be measured by various measurement methods commonly used in the art (for example, the test can be performed according to the methods given in the examples of the present application).
Referring to fig. 1 to 3, in the continuous flow micromixer 10 of the present application, the continuous flow micromixer 10 includes a micromixing channel 111, the micromixing channel 111 has a mixed medium outlet 113 and at least two reaction medium inlets 115, the mixed medium outlet 113 and the reaction medium inlets 115 are disposed at two ends of the micromixing channel 111; wherein, the micro-mixing channel 111 comprises a plurality of mixing units, and each mixing unit is divided into tesla valve structure cavities by the splitter 12.
In the continuous flow micromixer 10 provided by the present application, the continuous flow micromixer 10 comprises a micromixing channel 111, the micromixing channel 111 is provided with a mixed medium outlet 113 and at least two reaction medium inlets 115, the mixed medium outlet 113 and the reaction medium inlets 115 are disposed at two ends of the micromixing channel 111; the micro-mixing channel 111 comprises a plurality of mixing units, each of which is divided into tesla valve structure chambers by the flow dividing column 12. Namely, the continuous mixing process is adopted to replace the intermittent mixing process, the safety is high, and the property change of the product and the distributed production mode are avoided; meanwhile, the reaction medium after impact mixing collides with the splitter column 12 in each mixing unit, so that the direct impact of the reaction medium and the wall surface of the mixing unit is avoided, and the structural material is prevented from being damaged; the mixing unit is divided into tesla valve structures by the splitter column 12, and the reaction medium is guided to generate vortex in the mixing process through the wall surface of the mixing unit and the gravity and centrifugal force of the reaction medium, so that the mixing degree of the reaction medium is increased.
In an alternative exemplary embodiment, the continuous flow micromixer 10 includes a base plate 11, the micromixer channels 111 being disposed on the base plate 11. It should be noted that, in this embodiment, the continuous flow micro mixer 10 includes a bottom plate 11, and the micro mixing channel 111 is disposed on the bottom plate 11, so as to facilitate the opening of the micro mixing channel 111, and make the processing process simpler. It is understood that the location where the micro-mixing channel 111 is disposed is not limited, and in other embodiments, the micro-mixing channel 111 may be disposed at other locations according to the user's requirement.
In alternative exemplary embodiments, the base plate 11 is made of one or more materials selected from stainless steel, ceramic, and silicon carbide. It should be noted that, in this embodiment, the bottom plate 11 is made of one or more materials of stainless steel, ceramic, and silicon carbide, so that the bottom plate 11 has a better corrosion resistance, and further, the stability of the structure of the bottom plate 11 and the stability of the medium reaction are ensured.
In an alternative exemplary embodiment, the continuous flow micromixer 10 further comprises a cover plate 13, the cover plate 13 being detachably connected to the base plate 11. It should be noted that, in this embodiment, the continuous flow micro mixer 10 further includes a cover plate 13, and the cover plate 13 is detachably connected to the bottom plate 11, so that after a user uses the continuous flow micro mixer for a period of time, the user can detach the cover plate 13 to further clean, maintain or maintain the micro mixing channel 111 disposed on the bottom plate 11.
Specifically, in the present embodiment, the cover plate 13 is made of glass. It should be noted that, in this embodiment, the cover plate 13 is made of glass, so that a user can observe the mixing process conveniently.
In an alternative exemplary embodiment, the cover plate 13 is connected to the base plate 11 by a compression screw 131 and a flange nut 133. It should be noted that, in this embodiment, the cover plate 13 is connected to the bottom plate 11 through the compression screw 131 and the flange nut 133, the compression screw 131 and the flange nut 133 are existing commonly-used connecting members, and the cover plate 13 is connected to the bottom plate 11 through the compression screw 131 and the flange nut 133, so that the connection is convenient to implement, the connection structure is simple and easy to operate, meanwhile, the matching performance of parts is improved, and the cost is reduced.
Specifically, in this embodiment, the edges of the cover plate 13 and the bottom plate 11 are both provided with threaded holes 135 for accommodating the compression screws 131, and in the installation process, the compression screws 131 sequentially penetrate through the cover plate 13 and the bottom plate 11 and are connected with the flange nuts 133, so as to connect the cover plate 13 and the bottom plate 11.
In an alternative exemplary embodiment, a sealing ring 15 is further disposed between the cover plate 13 and the bottom plate 11, and the sealing ring 15 is disposed around the micro-mixing channel 111. It should be noted that, in this embodiment, a sealing ring 15 is further disposed between the cover plate 13 and the bottom plate 11, and the sealing ring 15 is disposed around the micro-mixing channel 111, so that the cover plate 13 and the bottom plate 11 are hermetically connected to each other, and overflow of the reaction medium in the micro-mixing channel 111 is avoided.
In particular, in the present embodiment, the sealing ring 15 is provided as a sealing rubber ring. Further, a sealing groove 116 for accommodating the sealing rubber ring is formed on the bottom plate 11.
In an alternative exemplary embodiment, the micro-mixing channel 111 is arranged in a serpentine spiral. It should be noted that, in this embodiment, the micro-mixing channel 111 is arranged in a zigzag spiral manner, so that the length of flowing through is increased in a limited space, and thus, the media can be mixed sufficiently.
Further, in this embodiment, the micro-mixing channel 111 and the sealing groove 116 are processed on the bottom plate 11 by etching, milling, or laser engraving.
In this embodiment, the connecting surface between the bottom plate 11 and the cover plate 13 is processed by electrolytic polishing, precision grinding, and other processes. It should be noted that the connecting surface between the bottom plate 11 and the cover plate 13 is processed by electrolytic polishing, precision grinding, and other processes, so that the micro-mixing channel 111 is more easily sealed.
In an alternative exemplary embodiment, the micro-mixing channel 111 is provided with two reaction medium inlets 115, and the two reaction medium inlets 115 are arranged at an included angle and converge on the micro-mixing channel 111. It should be noted that, in this embodiment, the micro mixing channel 111 includes two reaction medium inlets 115, the two reaction medium inlets 115 are disposed at an included angle and converge in the micro mixing channel 111, so that two reaction media flowing at high speed collide with each other at a convergence position to accelerate the mixing of the reaction media, and the collision-mixed reaction media collide with the diversion columns 12 in each mixing unit, thereby avoiding the direct collision between the reaction media and the wall surface of the mixing unit and damaging the structural material.
In an alternative exemplary embodiment, the distribution column 12 is provided in a drop-shaped structure having a tip at one end and a circular arc at the other end. It should be further noted that, in this embodiment, the distribution column 12 is configured to have a water drop-shaped structure with one end being a tip and the other end being an arc, so that the media are gathered at the tip, separated at the arc, and circulated to and fro to achieve sufficient mixing.
In an alternative exemplary embodiment, the flow channel constituting the micro-mixing channel 111 is sized to be less than 3000 μm. It should be noted that, in the present embodiment, the size of the flow channel constituting the micro-mixing channel 111 is set to be smaller than 3000 μm, so that the mixing of the media is facilitated. It is understood that the size of the flow channel forming the micro-mixing channel 111 is not limited thereto, and in other embodiments, the size of the flow channel may be set to other suitable values according to the user's needs.
While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (10)
1. A continuous flow micromixer, characterized in that it comprises a micromixing channel, said micromixing channel having a mixed medium outlet and at least two reaction medium inlets, said mixed medium outlet and said reaction medium inlets being provided at both ends of said micromixing channel;
wherein the micro-mixing channel comprises a plurality of mixing units, and each mixing unit is divided into a Tesla valve structure cavity by a flow dividing column.
2. The continuous flow micromixer according to claim 1, comprising a base plate on which said micromixer channels are disposed.
3. The continuous flow micromixer according to claim 2 wherein said base plate is made of one or more materials selected from stainless steel, ceramic, silicon carbide.
4. The continuous flow micromixer of claim 2 further comprising a cover plate, said cover plate being removably attached to said base plate.
5. The continuous flow micromixer according to claim 4 wherein said cover plate is attached to said base plate by compression screws and flange nuts.
6. The continuous flow micromixer according to claim 4 wherein a seal ring is further disposed between said cover plate and said base plate, said seal ring being disposed around said micromixer channel.
7. A continuous flow micromixer according to any one of claims 1 to 6, wherein said micromixer channels are arranged in a serpentine spiral.
8. The continuous flow micromixer according to any one of claims 1 to 6, wherein said micromixer channel is provided with two said reaction medium inlets, said two reaction medium inlets being disposed at an angle and converging in said micromixer channel.
9. The continuous flow micromixer according to any one of claims 1 to 6, wherein said branching column is provided in a drop-shaped configuration with one end being a tip and the other end being an arc.
10. The continuous flow micromixer according to any one of claims 1 to 6 wherein the flow channels constituting the micromixing channel are dimensioned to be less than 3000 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475014.4U CN214514213U (en) | 2021-03-05 | 2021-03-05 | Continuous flow micro mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475014.4U CN214514213U (en) | 2021-03-05 | 2021-03-05 | Continuous flow micro mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214514213U true CN214514213U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120475014.4U Expired - Fee Related CN214514213U (en) | 2021-03-05 | 2021-03-05 | Continuous flow micro mixer |
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|---|---|
| CN (1) | CN214514213U (en) |
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2021
- 2021-03-05 CN CN202120475014.4U patent/CN214514213U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |