CN216756250U - Diamond-shaped structure passive micro mixer - Google Patents
Diamond-shaped structure passive micro mixer Download PDFInfo
- Publication number
- CN216756250U CN216756250U CN202121615732.3U CN202121615732U CN216756250U CN 216756250 U CN216756250 U CN 216756250U CN 202121615732 U CN202121615732 U CN 202121615732U CN 216756250 U CN216756250 U CN 216756250U
- Authority
- CN
- China
- Prior art keywords
- channel
- inlet channel
- diamond
- mixing
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 10
- 239000010432 diamond Substances 0.000 claims abstract description 10
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 22
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002032 lab-on-a-chip Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
Abstract
The utility model discloses a diamond-structured passive micro mixer, which comprises a first inlet channel, a second inlet channel, a preliminary mixing zone, a first channel, a diamond-shaped mixing zone, a middle channel and a second channel, the rhombic mixing area comprises at least five annular units which are sequentially communicated through middle channels, the first inlet channel and the second inlet channel are both connected with the primary mixing area, so that the mixture is primarily mixed, the preliminary mixing area is communicated with the head end of the first channel, the first inlet channel and the second inlet channel are arranged in a collinear way, the circle center of the preliminary mixing area is coaxially arranged with the first inlet channel and the second inlet channel, passes through the rhombic mixing area, the necking is arranged on one side of the diamond, so that the fluid flows back at the necking position, the unbalanced collision of the fluid is aggravated, the turbulent flow is easily formed, and the mixing intensity is improved.
Description
Technical Field
The utility model relates to a diamond-structure passive micro mixer
Background
The microfluid analysis equipment has become a good supplement to the existing large-scale analysis equipment in the field of analysis and detection due to the advantages of compact equipment, high analysis speed, low cost and the like. The closed micro-channel and the cavity can effectively isolate the contact between a person and the reagent, ensure personal safety, avoid the pollution reaction speed of the reagent, improve analysis capacity, ensure that the reagent consumption is higher than that of macroscopic manual operation and is in a microliter level or even lower, and can be produced in large quantities at low cost and popularized and used. Among them, mixing of micro-liquids at micro-scale has become an important micro-fluid operation in micro-total analysis systems or lab-on-a-chip, and micro-mixers have also become an important pre-processing unit in micro-total analysis systems. The micro device is adopted to realize the rapid mixing of the liquid, which is beneficial to realizing the rapid processing and high-flux analysis of the sample on the chip. Compared with a macro mixer, the micro mixer has the remarkable advantages that the consumption of reagent amount can be reduced to a micron level or even a lower level, and the mixing speed and the efficiency are greatly improved.
Currently, micromixers can be divided into two categories depending on whether they need to be mixed by external power input: active micromixers and passive micromixers. The active micro mixer mainly depends on external power such as ultrasound, magnetism, mechanical stirring and the like to realize disturbance on fluid in the micro channel so as to achieve a mixing effect, and the active micro mixer is relatively complex in design and high in manufacturing difficulty. Passive micromixers primarily follow stretching and folding of the fluid channels to increase the contact area between the fluids to promote diffusion through optimized microchannel designs, such as baffles or obstacles, to achieve shunting of the liquid or to increase chaotic convection of the liquid in the channels to promote mixing efficiency. The passive micro mixer does not need any external power, has small processing difficulty and is easy to integrate, so the two-dimensional plane micro mixer is still a hot spot of current research at present. In order to increase the molecular diffusion and convection action of the fluid, the passive micromixer increases the mixing efficiency of the fluid by arranging a barrier in a channel and forming a speed difference so as to increase the direct collision of fluid molecules. Therefore, in the design of the micro-mixer channels, it is necessary to avoid complicated channel designs while increasing the disturbance of the fluid as much as possible.
Disclosure of Invention
The utility model aims to overcome the existing defects of the passive micro mixer and provide the passive micro mixer with the diamond structure, and the mixer improves the direct collision of fluid by changing the width of a channel, thereby improving the mixing efficiency.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model discloses a diamond-structured passive micro mixer, which comprises a first inlet channel 1, a second inlet channel 3, a primary mixing area 2, a first channel 4, a diamond-shaped mixing area 5, a middle channel 6 and a second channel 7, wherein at least five diamond-shaped mixing areas 5 are sequentially communicated through the middle channels, the first inlet channel 1 and the second inlet channel 3 are both connected with the primary mixing area 2 to preliminarily mix a mixture, the primary mixing area 2 is communicated with the head end of the first channel 4, the first inlet channel 1 and the second inlet channel 3 are arranged in a collinear way, the circle center of the primary mixing area is coaxially arranged with the first inlet channel and the second inlet channel, a necking is arranged on one side of a diamond through the diamond-shaped mixing area 5 to enable fluid to flow back at the necking position, so that unbalanced collision of the fluid is intensified, turbulent flow is easy to form, and the mixing intensity is improved.
Further, preliminary mixing district 3, its characterized in that, first inlet passage 1 and 3 contained angles of second inlet passage be 180 degrees, pass preliminary mixing district 2, and the symmetric distribution, the axis of first passageway 4 perpendicular to first inlet passage 1 and second inlet passage 3 to with the centre of a circle collineation of preliminary mixing district 2.
Furthermore, the rhombic mixing zones 5 are characterized in that the rhombic mixing zones 5 are sequentially connected end to end through intermediate passages 6.
The diamond-structured passive micromixer is further characterized in that the widths of the first inlet channel 1, the second inlet channel 3, the first channel 4, the second channel 7 and the middle channel 6 are all equal.
Furthermore, the diamond-structured passive micromixer is characterized in that a single-side diamond edge of the diamond mixing zone (5) is provided with a protruding necking, and the width of the necking is 0.1mm and is positioned on the midline of the diamond edge.
Drawings
The present application will be described in detail hereinafter based on embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic two-dimensional structure diagram of a diamond-structured passive micro mixer according to an embodiment of the present application;
fig. 2 is a schematic three-dimensional structure diagram of a diamond-structured passive micro mixer according to an embodiment of the present application;
fig. 3 is a partially enlarged view of a diamond-shaped mixing zone of a diamond-shaped passive micromixer according to an embodiment of the present application.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
In the drawings: 1-first inlet channel 2-preliminary mixing zone 3-second inlet channel 4-first channel 5-rhombus mixing zone 6-intermediate channel 7-second channel
Detailed Description
As described in the background, the conventional passive micromixer promotes the mixing of the fluid by providing a barrier in the channel to increase the molecular diffusion and convection of the fluid, and the present application proposes a diamond-structured passive micromixer.
In a typical embodiment of this application, as shown in fig. 1, fig. 2, fig. 3, a rhombus structure passive micromixer, wherein include first inlet channel 1, second inlet channel 3, preliminary mixing zone 2, first passageway 4, rhombus mixing zone 5, intermediate channel 6, second passageway 7, rhombus mixing zone 5 at least five communicate in proper order through the intermediate channel, first inlet channel 1 and second inlet channel 3 all are connected with preliminary mixing zone 2 for the mixture preliminary mixing, preliminary mixing zone 2 is linked together with the head end of first passageway 4, first inlet channel 1 and second inlet channel 3 arrange, the centre of a circle and first inlet channel, the collineation of second inlet channel arrange.
It will be understood that when it is difficult to achieve rapid mixing of the fluids to be mixed, it is desirable to improve the mixing performance of the micromixer by increasing the number of diamond-shaped mixing zones 5 and intermediate channels 6, but at least five, by increasing the number of annular mixing zones through which the fluids pass, the fluids may be split and merged several times in the channels to improve the mixing effect.
Of course, it can be understood that the fluid flows into the rhombic mixing area after the primary mixing of the fluid is completed in the primary mixing area, and a necking is arranged on one side of the rhombic mixing area, so that the fluid can generate backflow due to the reduction of the cross section of the channel when reaching the necking, the collision of the fluid in the channel is increased, and the mixing performance of the channel is improved.
Claims (4)
1. A diamond-structured passive micro mixer is characterized by comprising a first inlet channel (1), a second inlet channel (3), a preliminary mixing zone (2), a first channel (4), a diamond-shaped mixing zone (5), a middle channel (6) and a second channel (7), at least five rhombic mixing areas (5) are sequentially communicated through middle passages, the first inlet passage (1) and the second inlet passage (3) are both connected with the primary mixing area (2) to ensure that the mixture is primarily mixed, the preliminary mixing area (2) is communicated with the head end of the first channel (4), the first inlet channel (1) and the second inlet channel (3) are arranged in line, the circle center of the primary mixing area is coaxially arranged with the first inlet channel and the second inlet channel, and a necking is arranged on one side of the rhombus in the rhombic mixing area (5).
2. A diamond structured passive micromixer according to claim 1, characterized in that said first inlet channel (1) and second inlet channel (3) are 180 ° and pass through the center of the preliminary mixing zone (2), symmetrically distributed, and the axis of said first channel (4) is perpendicular to the first inlet channel (1) and second inlet channel (3), collinear with the center of the preliminary mixing zone (2).
3. A diamond structured passive micromixer according to claim 1, characterized in that said diamond mixing zones (5) are connected in series by intermediate channels (6).
4. A diamond structured passive micromixer according to claim 1, characterized in that the widths of said first inlet channel (1), second inlet channel (3), first channel (4), second channel (7) and intermediate channel (6) are all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121615732.3U CN216756250U (en) | 2021-07-15 | 2021-07-15 | Diamond-shaped structure passive micro mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121615732.3U CN216756250U (en) | 2021-07-15 | 2021-07-15 | Diamond-shaped structure passive micro mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216756250U true CN216756250U (en) | 2022-06-17 |
Family
ID=81955286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121615732.3U Expired - Fee Related CN216756250U (en) | 2021-07-15 | 2021-07-15 | Diamond-shaped structure passive micro mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216756250U (en) |
-
2021
- 2021-07-15 CN CN202121615732.3U patent/CN216756250U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106422924B (en) | Square wave passive micro mixer | |
| CN207446126U (en) | A kind of passive type micro-mixer | |
| CN102151504A (en) | Micro mixer with unsymmetrical separation and recombination fan-shaped cavity structures | |
| CN105664773B (en) | Plane passive type micro-mixer | |
| CN201959734U (en) | Micro-mixer adopting asymmetric separating reconstructing fan-shaped cavity structure | |
| CN109261036B (en) | Microstructure mixer for mixing high-viscosity fluid | |
| CN107583551A (en) | A kind of plane passive type micro-mixer of stepped passageway processing font baffle plate | |
| KR101432729B1 (en) | Micromixer with circular chambers and crossing constriction channels | |
| CN109985543B (en) | Spindle-shaped passive micro mixer | |
| CN210906104U (en) | Micro-reaction channel and micro-reactor | |
| Fan et al. | Rapid microfluidic mixer utilizing sharp corner structures | |
| CN108212046B (en) | Honeycomb type channel microreactor | |
| CN102350286B (en) | Impact type microreactor | |
| CN205886751U (en) | Flow mixer passively declines | |
| CN109529692A (en) | A kind of passive type for low diffusion coefficient fluid restrains-dissipate micro-mixer | |
| CN111974290B (en) | Taiji-shaped passive micro mixer | |
| CN206381935U (en) | A kind of asymmetric separation-and-combination structure passive type micro-mixers of 3D | |
| CN207446125U (en) | A kind of passive microfluid mixer | |
| CN211886766U (en) | Rotational flow type micro-reaction channel, substrate, reactor and system | |
| CN106268472A (en) | A kind of inverted V-shaped for passive micro-mixer multistage mixing array structure | |
| CN216756250U (en) | Diamond-shaped structure passive micro mixer | |
| CN113198402B (en) | Multi-stage series micro-reactor and fluid mixing method | |
| CN207237948U (en) | A kind of micro- reaction channel, substrate and microreactor | |
| CN110975776B (en) | Microfluid mixing channel, microfluid control device and microreactor | |
| CN206103829U (en) | Square wave blender that declines passively |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220617 |