CN114452914B - Atomizing micromixer - Google Patents
Atomizing micromixer Download PDFInfo
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- CN114452914B CN114452914B CN202210205122.9A CN202210205122A CN114452914B CN 114452914 B CN114452914 B CN 114452914B CN 202210205122 A CN202210205122 A CN 202210205122A CN 114452914 B CN114452914 B CN 114452914B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention belongs to the technical field of material mixing equipment, and particularly discloses an atomization micromixer, which comprises a shell, wherein a cavity is arranged in the shell, the cavity is sequentially divided into a material distribution section, a mixing section and an atomization section along the material flow direction, the atomization section comprises a contraction section, a throat section and an expansion section, a partition piece for dividing the material distribution section into a plurality of independent material distribution cavities is arranged in the material distribution section, and the partition piece comprises a plurality of transverse parts and a plurality of vertical parts; the shell is provided with feed inlets the same as the distribution cavities in number, and the distribution cavities are communicated with the corresponding feed inlets. In the invention, the reaction materials flow through the distribution section to form a plurality of layers of materials which are alternated with each other, so that the contact area of the reaction materials is effectively increased, then the atomization of the reaction materials is realized through the atomization section, the high-speed atomized materials are obtained, the contact area of the reaction materials is further increased, the mass transfer efficiency of the reaction materials is further improved, the occurrence of side reactions of the reaction materials in the reaction tube array is effectively reduced, and the productivity and purity of products are improved.
Description
Technical Field
The invention relates to the technical field of material mixing equipment, in particular to an atomization micro-mixer.
Background
Chemical reactors are devices that perform a reaction process, and the production of many chemical products requires the chemical reactors to be completed. The chemical production process is generally divided into a continuous reaction process and an intermittent reaction process, wherein the intermittent reaction process needs to be carried out in a reaction kettle, and the intermittent reaction has the problems of long reaction time, low equipment utilization rate and small production capacity of a single reactor. The continuous reaction process is carried out in a tubular reactor, the tubular reactor is generally used for carrying out a reaction process with strong heat release or strong heat absorption, a plurality of reaction tubes are arranged in the tubular reactor, the reaction materials are subjected to chemical reaction in the reaction tubes to generate products, and the space size in the reaction tubes is limited, so that after the reaction materials directly enter the reaction tubes, the mixing degree of the reaction materials is low, the mass transfer efficiency of the reaction materials is low, the occurrence of side reactions is more, and the productivity and the purity of the products are directly influenced.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an atomizing micromixer for solving the problem of low mass transfer efficiency of the reaction materials caused by the reaction materials directly entering the reaction tube array in the prior art.
In order to achieve the above and other related objects, the present invention provides an atomization micromixer, including a housing, wherein a cavity is provided in the housing, the cavity is sequentially divided into a material distribution section, a mixing section and an atomization section along a material flow direction, the atomization section includes a contraction section, a throat section and an expansion section, a partition is provided in the material distribution section, the partition includes a plurality of transverse portions and a plurality of vertical portions, two adjacent transverse portions are connected through the vertical portions, and the partition divides a space in the material distribution section into a plurality of independent material distribution chambers; the shell is provided with at least two feed inlets, the number of the material distribution cavities is the same as that of the feed inlets, and the material distribution cavities are communicated with the corresponding feed inlets.
As described above, the atomizing micromixer of the present invention has the following advantageous effects: according to the invention, the inner space of the distribution section is divided into independent distribution cavities with the same number as the feed inlets by using the dividing piece, and the dividing piece is provided with the transverse parts and the vertical parts, so that the inner space of the distribution cavity can be divided into a plurality of layers of spaces by the dividing piece, so that the reactant materials flowing into the distribution cavity through the feed inlets form a plurality of layers of materials, the layers of materials formed by more than two reactant materials are mutually alternated, for example, on the longitudinal section of the distribution section, the two reactant materials form a structure of 'material layer A-material layer B-material layer A-material layer B … …', and each layer of material fills a gap formed between two adjacent transverse parts, namely, the area of each layer of material is larger, namely, the distribution section can effectively increase the contact area of the reactant materials, so that the contact area of the reactant materials when being mixed in the mixing section is effectively increased, and the mass transfer efficiency of the reactant materials is effectively improved.
Besides, an atomization section is designed in the shell, after the reaction materials are mixed in the mixing section, the flow area of the reaction materials flowing through the contraction section of the contraction section is contracted, and then the reaction materials flow in the contraction section in an accelerating way through the throat section and the expansion section, so that the reaction materials are impacted and crushed by the inner wall of the contraction section, the contact area of the reaction materials is further increased, and the mass transfer efficiency of the reaction materials is further improved.
In summary, according to the atomization micromixer provided by the invention, the structural design of the distribution section enables the reaction materials to form a multi-layer material structure which is mutually alternated, so that the contact area of the reaction materials is increased, the high-speed atomization materials are obtained by atomizing the reaction materials through the atomization section, and the contact area of the reaction materials is further increased, so that the mass transfer efficiency of the reaction materials is improved, namely, the mass transfer efficiency of the reaction materials entering the reaction tube array is high, the occurrence of side reactions in the reaction tube array is effectively reduced, and the productivity and purity of products are improved.
Optionally, the transverse portion is provided with a plurality of bending portions.
In this scheme, the kink on the transverse portion can make the reaction material form the material layer that has the fluctuation to further increase the area of contact of reaction material, and then further improve the mass transfer efficiency of reaction material.
Optionally, the bending part is square or semicircular.
Optionally, the lateral portion is wave-shaped.
In this scheme, when horizontal portion is the wave type, can make the reaction material that gets into the cloth intracavity form the material layer that has bigger fluctuation to further increase reaction material's area of contact, and then further improve reaction material's mass transfer efficiency.
Optionally, a spoiler is arranged in the expansion section.
In this scheme, the flow path of high-speed atomizing material can be changed to the vortex piece in the expansion section to further improve the mass transfer efficiency of reaction material.
Optionally, the spoiler comprises a rotating shaft and a plurality of blades coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the expansion section.
In this scheme, reaction material obtains high-speed atomizing material after atomizing the section atomizing, and this high-speed atomizing material's speed can reach supersonic speed, consequently, high-speed atomizing material strikes on the blade to drive blade and pivot rotation, pivoted blade can change reaction material's flow path, and then realizes the vortex to reaction material, further improves reaction material's mass transfer efficiency.
Optionally, two adjacent lateral portions are disposed in parallel.
In this scheme, two adjacent horizontal portions parallel arrangement ensures that the thickness of the material layer that the reaction material formed between two adjacent horizontal portions is even.
Optionally, the void value between two adjacent lateral portions is greater than 0 and less than or equal to 5mm.
In the scheme, the gap value between two adjacent transverse parts is limited to be more than 0 and less than or equal to 5mm, so that the thickness of a material layer formed by the reaction materials is limited to be between 0 and 5mm (excluding 0), namely, the reaction materials form membranous materials, and the situation that the thickness of the material layer is too thick to be beneficial to rapid mixing of the reaction materials is avoided.
Optionally, a void value between two adjacent lateral portions is 1mm or more and 2.5mm or less.
In the scheme, the gap value between two adjacent transverse parts is limited to be more than or equal to 1mm and less than or equal to 2.5mm, so that the thickness of a material layer formed by reaction materials is limited to be between 1 and 2.5mm, the problem of difficult processing of a partition piece caused by too thin thickness is avoided, and meanwhile, the too thick thickness of the material layer is also avoided.
Optionally, the shell is provided with a lightening hole.
In this scheme, the lightening hole on the casing can lighten the weight of casing, and then subtracts the whole weight of atomizing micromixer
Drawings
FIG. 1 is a schematic structural diagram of an atomizing micromixer according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 2;
FIG. 4 is a cross-sectional view of an atomizing micromixer according to the second embodiment of the present disclosure, taken along the direction A-A in FIG. 1;
FIG. 5 is a cross-sectional view of an atomizing micromixer according to a third embodiment of the present disclosure, shown in the direction B-B in FIG. 2;
FIG. 6 is a cross-sectional view of an atomizing micromixer according to the fourth embodiment of the present disclosure, taken along the direction B-B in FIG. 2;
FIG. 7 is a cross-sectional view of an atomizing micromixer according to a fifth embodiment of the present disclosure, taken along the direction B-B in FIG. 2.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced. Also, the specific process parameters and the like described below are just one example of suitable ranges, i.e., a person skilled in the art can select a suitable range from the description herein, and are not intended to be limited to the specific values described below.
Reference numerals in the drawings of the specification include: the device comprises a shell 100, a distribution cavity 110, a mixing section 120, an atomization section 130, a contraction section 131, a throat section 132, an expansion section 133, a lightening hole 140, a feed inlet 150, a partition 200, a transverse portion 210, a bending portion 211, a vertical portion 220, a spoiler 300, a rotating shaft 301 and blades 302.
Example 1
As shown in fig. 1, 2 and 3, the present embodiment provides an atomization micro-mixer, which includes a housing 100, wherein a cavity is provided in the housing 100, a bottom end of the cavity extends out of a bottom end of the housing 100 (see fig. 2), and the cavity is sequentially divided into a material distribution section, a mixing section 120 and an atomization section 130 along a material flow direction, and the atomization section 130 includes a contraction section 131, a throat section 132 and an expansion section 133. The partition member 200 is arranged in the material distribution section, the partition member 200 comprises a plurality of transverse portions 210 and a plurality of vertical portions 220, two adjacent transverse portions 210 are connected through the vertical portions 220, the partition member 200 divides the space of the material distribution section into a plurality of independent material distribution cavities 110, in the embodiment, the number of the partition member 200 is one, and one partition member 200 divides the space of the material distribution section into two independent material distribution cavities 110. It should be noted that, according to the practical situation, a suitable number of spacers 200 may be designed in the distribution section to divide the space of the distribution section into the distribution chambers 110 having the same number of reaction materials.
In addition, in the present embodiment, the number of the lateral portions 210 of the separator 200 is seven, the number of the vertical portions 220 is eight, and the lateral portions 210 and the vertical portions 220 are integrally formed. The two adjacent lateral portions 210 are arranged in parallel, and the lateral portions 210 are all arranged horizontally, and the gap value between the two adjacent lateral portions 210 is greater than 0 and less than or equal to 5mm, in this embodiment, the gap value between the two adjacent lateral portions 210 is 2mm, so that the reaction material forms a film-like material with a thickness of 2 mm.
The housing 100 is provided with a lightening hole 140 and at least two feeding holes 150, in this embodiment, the number of the feeding holes 150 is two, and the lightening hole 140 is located between the two feeding holes 150. The two feed openings 150 are each in communication with a corresponding distribution chamber 110, i.e. the left feed opening 150 is in communication with the left distribution chamber 110 and the right feed opening 150 is in communication with the right distribution chamber 110 as seen in fig. 2.
In practical use, two kinds of reaction materials flow into the corresponding distribution cavity 110 through the two feeding ports 150, and the partition 200 can divide the internal space of the distribution cavity 110 into a plurality of communicated layers of spaces due to the special shape of the partition 200, so that the reaction materials flowing into the distribution cavity 110 form a plurality of layers of materials, and the reaction materials form a plurality of layers of membranous materials due to the gap value between the two adjacent transverse parts 210 being 2 mm. For convenience of description, we refer to the two reaction materials as a reaction material a and a reaction material B, and as can be seen from fig. 3, the multilayer film materials formed by the reaction material a and the multilayer film materials formed by the reaction material B are alternately arranged with each other, that is, a structure of "film material a-film material B-film material a-film material B" is formed, so that when the two reaction materials flow into the mixing section 120 through the corresponding distribution cavity 110, the multilayer film material a and the multilayer film material B automatically contact and mix under the action of gravity, and the contact area of the two reaction materials is large, so that the mass transfer efficiency of the two reaction materials is high.
Then, the reaction materials mixed in the mixing section 120 flow through the atomizing section 130, and as the constriction section 131 is tapered, the flow area is contracted, the reaction materials flow through the constriction section 131 and then flow through the throat section 132 and the expansion section 133, so that the reaction materials flow in an accelerating manner in the constriction section 131, the inner wall of the constriction section 131 impacts and breaks the reaction materials, the reaction materials are atomized to obtain high-speed atomized materials (the initial speed of the reaction materials can be adjusted to supersonic speed by a high-pressure valve or a flow device when the reaction materials flow into the feed inlet 150, and the initial speed of the reaction materials can be adjusted to supersonic speed at the highest speed), the contact area of the atomized reaction materials is further increased, and the mass transfer process of the reaction materials is facilitated. Therefore, in the atomizing micromixer of this embodiment, on one hand, the contact area of the reaction material is increased by designing the distribution cavity 110 with a special structure, and on the other hand, the atomization of the reaction material is realized by designing the atomization section 130, so that the contact area of the reaction material is further increased, the mass transfer efficiency of the reaction material after entering the reaction tube (the reaction tube is communicated with the bottom end of the atomizing micromixer) is improved, the occurrence of side reactions in the reaction tube is reduced, and the productivity and purity of the product are improved.
Example two
The present embodiment differs from the first embodiment only in that: as shown in fig. 4, in the present embodiment, the turbulence member 300 is disposed in the expansion section 133, and the turbulence member 300 is used to change the flow path of the high-speed atomized material, so as to further improve the mixing degree of the reaction material, and further improve the mass transfer efficiency of the reaction material. The spoiler 300 in this embodiment includes a rotating shaft 301 and a plurality of blades 302 coaxially and fixedly connected to the rotating shaft 301, the number of the blades 302 is six, the blades 302 are welded on the rotating shaft 301, and the rotating shaft 301 is rotatably connected to the inner wall of the expansion section 133.
In practical use, the reaction material is atomized to obtain a high-speed atomized material, the high-speed atomized material is impacted on the blade 302, so that the blade 302 and the rotating shaft 301 are driven to rotate, the rotating blade 302 can change the flow path of the reaction material, the turbulent flow of the reaction material is realized, the mixing effect of the reaction material is improved, and the mass transfer efficiency of the reaction material is improved.
Example III
The present embodiment differs from the first or second embodiment only in that: the structure of the separator 200 in this embodiment is slightly different, and in this embodiment, as shown in fig. 5, the number of the transverse portions 210 is five, the number of the vertical portions 220 is six, and the gap value between two adjacent transverse portions 210 is 3.5mm. The transverse portion 210 is provided with a plurality of bending portions 211, and the bending portions 211 are square.
In this embodiment, the bending portion 211 on the transverse portion 210 can make the reactant material form a film material with undulation in the distribution cavity 110, so as to further increase the contact area of the two reactant materials, and further improve the mass transfer efficiency of the reactant materials.
Example IV
The present embodiment differs from the third embodiment only in that: as shown in fig. 6, the bending portion 211 in the present embodiment is semicircular.
The present embodiment provides another shape of the bending portion 211, and the bending portion 211 in the present embodiment is semicircular, so that the appearance is smoother, and the reaction material is more beneficial to forming a film-like material with undulation in the distribution cavity 110.
Example five
The present embodiment differs from the first or second embodiment only in that: as shown in fig. 7, in the present embodiment, the number of the lateral portions 210 is five, the number of the vertical portions 220 is six, and the gap value between two adjacent lateral portions 210 is 3.5mm. The transverse portions 210 are wavy, two transverse portions 210 arranged at intervals are arranged in parallel, and two adjacent transverse portions 210 are arranged in mirror symmetry.
In this embodiment, the wavy transverse portion 210 can make the reactant material entering the distribution cavity 110 form a film material with larger undulation, so as to further increase the contact area of the reactant material and further improve the mass transfer efficiency of the reactant material.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. An atomizing micromixer, comprising a housing, wherein: the shell is internally provided with a cavity, the cavity is sequentially divided into a material distribution section, a mixing section and an atomizing section along the material flow direction, the atomizing section comprises a contraction section, a throat section and an expansion section, a partition piece is arranged in the material distribution section and comprises a plurality of transverse parts and a plurality of vertical parts, two adjacent transverse parts are connected through the vertical parts, and the partition piece divides the space of the material distribution section into a plurality of independent material distribution cavities; the shell is provided with at least two feed inlets, the number of the material distribution cavities is the same as that of the feed inlets, and the material distribution cavities are communicated with the corresponding feed inlets; the partition piece can divide the inner space of the distribution cavity into a plurality of layers of spaces, so that the reactant materials flowing into the distribution cavity through the feed inlet form a plurality of layers of materials, and the plurality of layers of materials formed by more than two types of reactant materials are mutually alternated.
2. The atomizing micromixer of claim 1, wherein: the transverse part is provided with a plurality of bending parts.
3. An atomizing micromixer according to claim 2, wherein: the bending part is square or semicircular.
4. The atomizing micromixer of claim 1, wherein: the transverse portion is wavy.
5. The atomizing micromixer of claim 1, wherein: and a spoiler is arranged in the expansion section.
6. The atomizing micromixer of claim 5, wherein: the turbulence piece comprises a rotating shaft and a plurality of blades which are coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotationally connected to the inner wall of the expansion section.
7. The atomizing micromixer of claim 1, wherein: and two adjacent transverse parts are arranged in parallel.
8. The atomizing micromixer of claim 7, wherein: the clearance value between two adjacent transverse parts is more than 0 and less than or equal to 5mm.
9. The atomizing micromixer of claim 7, wherein: the clearance value between two adjacent transverse parts is more than or equal to 1mm and less than or equal to 2.5mm.
10. The atomizing micromixer of claim 1, wherein: the shell is provided with a lightening hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205122.9A CN114452914B (en) | 2022-03-02 | 2022-03-02 | Atomizing micromixer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205122.9A CN114452914B (en) | 2022-03-02 | 2022-03-02 | Atomizing micromixer |
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| Publication Number | Publication Date |
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| CN114452914A CN114452914A (en) | 2022-05-10 |
| CN114452914B true CN114452914B (en) | 2023-08-08 |
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| CN202210205122.9A Active CN114452914B (en) | 2022-03-02 | 2022-03-02 | Atomizing micromixer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1537029A (en) * | 2001-05-07 | 2004-10-13 | 环球油品公司 | Apparatus for mixing and reacting at least tow fluids |
| CN101234324A (en) * | 2007-11-21 | 2008-08-06 | 清华大学 | Micro-contact mixer |
| KR20090043439A (en) * | 2007-10-29 | 2009-05-06 | 주식회사 엘지화학 | Substrate and micro reactor comprising the same |
| CN106492718A (en) * | 2016-10-31 | 2017-03-15 | 山东豪迈化工技术有限公司 | A kind of chip-shaped micro- reaction channel and microreactor |
| CN110201610A (en) * | 2018-02-28 | 2019-09-06 | 国家能源投资集团有限责任公司 | Gas distributor and reactor |
| CN110404490A (en) * | 2019-07-31 | 2019-11-05 | 山东豪迈机械制造有限公司 | A kind of layering mixing microreactor |
| CN112403413A (en) * | 2020-09-29 | 2021-02-26 | 合肥通用机械研究院有限公司 | Integrated countercurrent strengthening microreactor |
| KR20210083996A (en) * | 2019-12-27 | 2021-07-07 | 한국기계연구원 | Micro channel reactor and method for producing the same |
-
2022
- 2022-03-02 CN CN202210205122.9A patent/CN114452914B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537029A (en) * | 2001-05-07 | 2004-10-13 | 环球油品公司 | Apparatus for mixing and reacting at least tow fluids |
| KR20090043439A (en) * | 2007-10-29 | 2009-05-06 | 주식회사 엘지화학 | Substrate and micro reactor comprising the same |
| CN101234324A (en) * | 2007-11-21 | 2008-08-06 | 清华大学 | Micro-contact mixer |
| CN106492718A (en) * | 2016-10-31 | 2017-03-15 | 山东豪迈化工技术有限公司 | A kind of chip-shaped micro- reaction channel and microreactor |
| CN110201610A (en) * | 2018-02-28 | 2019-09-06 | 国家能源投资集团有限责任公司 | Gas distributor and reactor |
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| KR20210083996A (en) * | 2019-12-27 | 2021-07-07 | 한국기계연구원 | Micro channel reactor and method for producing the same |
| CN112403413A (en) * | 2020-09-29 | 2021-02-26 | 合肥通用机械研究院有限公司 | Integrated countercurrent strengthening microreactor |
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| CN114452914A (en) | 2022-05-10 |
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