CN114452914A - Atomizing micro mixer - Google Patents
Atomizing micro mixer Download PDFInfo
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- CN114452914A CN114452914A CN202210205122.9A CN202210205122A CN114452914A CN 114452914 A CN114452914 A CN 114452914A CN 202210205122 A CN202210205122 A CN 202210205122A CN 114452914 A CN114452914 A CN 114452914A
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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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Abstract
The invention belongs to the technical field of material mixing equipment, and particularly discloses an atomization micro mixer 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 for partitioning the material distribution section into a plurality of independent material distribution cavities is arranged in the material distribution section, and the partition comprises a plurality of transverse parts and a plurality of vertical parts; the shell is provided with feed inlets with the same number as the material distribution cavities, and the material distribution cavities are communicated with the corresponding feed inlets. According to the invention, the reaction materials form a plurality of layers of materials which are alternated mutually after flowing through the material distribution section, 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 atomization materials are obtained, and the contact area of the reaction materials is further increased, so that the mass transfer efficiency of the reaction materials is improved, the side reaction of the reaction materials in the reaction tube is effectively reduced, and the production rate and the purity of the product are improved.
Description
Technical Field
The invention relates to the technical field of material mixing equipment, in particular to an atomization micro mixer.
Background
A chemical reactor is a device for implementing a reaction process, and the production of many chemical products needs to be completed by the chemical reactor. The chemical production process is generally divided into a continuous reaction process and an intermittent reaction process, 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, 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 the reaction materials are not high in mixing degree after directly entering the reaction tubes, the mass transfer efficiency of the reaction materials is not high, side reactions are caused to occur more, and the productivity and the purity of the products are directly influenced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an atomizing micromixer, which is used to solve the problem of low mass transfer efficiency of reaction materials caused by the direct entry of the reaction materials into the reaction tube in the prior art.
In order to achieve the above and other related objects, the present invention provides an atomization micro mixer, which comprises a housing, wherein a cavity is arranged 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 comprises a contraction section, a throat section and an expansion section, a partition is arranged in the material distribution section, the partition 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 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 beneficial effects: in the invention, the internal space of the material distribution section is divided into independent material distribution cavities with the same number as the material inlet by using the partition, and the partition is provided with a plurality of transverse parts and a plurality of vertical parts, so that the internal space of the material distribution cavity can be divided into a plurality of layers of spaces by the partition, so that reaction materials flowing into the material distribution cavity through the material inlet form a plurality of layers of materials, the plurality of layers of materials formed by more than two reaction materials are mutually alternated, for example, on the longitudinal section of the material distribution section, the two reaction materials form a structure of a material layer A-a material layer B-a material layer A-a material layer B … …', and each layer of material is filled in a gap formed between two adjacent transverse parts, namely, the area of each layer of material is larger, namely, the material distribution section can effectively increase the contact area of the reaction materials, so that the contact area of the reaction materials when the reaction materials are mixed in the mixing section is effectively increased, thereby effectively improving the mass transfer efficiency of the reaction materials.
Moreover, the atomization section is further 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 contracts, then the reaction materials flow in the contraction section at an accelerated speed through the throat section and the expansion section, and the reaction materials are impacted and crushed by the inner wall of the contraction section, so that the reaction materials are atomized, the contact area of the reaction materials is further increased, and the mass transfer efficiency of the reaction materials is further improved.
In summary, in the atomization micro-mixer of the present invention, the reaction materials are made to form a multi-layer material structure alternating with each other through the structural design of the material distribution section, so as to increase the contact area of the reaction materials, and the atomization of the reaction materials is realized through the atomization section to obtain the high-speed atomized materials, so as to further increase the contact area of the reaction materials, thereby improving the mass transfer efficiency of the reaction materials, i.e., the mass transfer efficiency of the reaction materials entering the reaction tubes is high, the occurrence of side reactions in the reaction tubes is effectively reduced, and the productivity and purity of the product are improved.
Optionally, a plurality of bending portions are arranged on the transverse portion.
In this scheme, the kink in the horizontal portion can make reaction material form the material layer that has fluctuation to further increase reaction material's area of contact, and then further improve reaction material's mass transfer efficiency.
Optionally, the bent portion is square or semicircular.
Optionally, the transverse portion is wave-shaped.
In this scheme, when horizontal portion was the wave type, can make the reaction material that gets into in the cloth intracavity form the material layer that has bigger undulation to further increase reaction material's area of contact, and then further improve reaction material's mass transfer efficiency.
Optionally, a spoiler is provided within the expanding section.
In this scheme, the vortex piece in the expansion section can change the flow path of high-speed atomizing material to further improve the mass transfer efficiency of reaction material.
Optionally, the spoiler includes pivot and a plurality of coaxial fixed connection in the epaxial blade of pivot, the pivot is rotated and is connected on the inner wall of expansion section.
In the scheme, after the reaction materials are atomized by the atomizing section, high-speed atomized materials are obtained, and the speed of the high-speed atomized materials can reach supersonic speed, so that the high-speed atomized materials impact on the blades to drive the blades and the rotating shaft to rotate, the rotating blades can change the flow path of the reaction materials, the reaction materials are disturbed, and the mass transfer efficiency of the reaction materials is further improved.
Alternatively, two adjacent transverse portions are arranged in parallel.
In this scheme, two adjacent horizontal portions parallel arrangement ensure that the thickness of reaction material layer that forms between two adjacent horizontal portions is even.
Optionally, a gap value between two adjacent transverse portions is greater than 0 and equal to or less than 5 mm.
In the scheme, the gap value between two adjacent transverse parts is limited to be larger than 0 and smaller than or equal to 5mm, so that the thickness of a material layer formed by reaction materials is limited to be 0-5mm (0 is excluded), namely the reaction materials form film-shaped materials, and the phenomenon that the material layer is too thick to be beneficial to rapid mixing of the reaction materials is avoided.
Optionally, a gap value between two adjacent transverse portions is greater than or equal to 1mm and less than or equal to 2.5 mm.
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 1-2.5mm, the problem of difficulty in machining a separating part caused by over-thin thickness is avoided, and the over-thick thickness of the material layer is also avoided.
Optionally, a lightening hole is formed in the shell.
In this scheme, the lightening hole on the casing can alleviate the weight of casing, and then reduces the whole weight of atomizing micromixer
Drawings
Fig. 1 is a structural schematic diagram of an atomizing micro-mixer according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a cross-sectional view of an atomizing micro-mixer according to the second embodiment of the present invention, taken along the line A-A of FIG. 1;
FIG. 5 is a cross-sectional view of an atomizing micromixer taken along the direction B-B in FIG. 2 according to a third embodiment of the present invention;
FIG. 6 is a cross-sectional view of an atomizing micromixer taken along the line B-B in FIG. 2 according to a fourth embodiment of the present invention;
fig. 7 is a cross-sectional view of an atomizing micromixer taken along the direction B-B in fig. 2 according to the fifth embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated. The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention. Moreover, the specific process parameters and the like in the following examples are also only one example of suitable ranges, and a person skilled in the art can select the process parameters and the like within the suitable ranges through the description of the invention, and the process parameters and the like are not limited to the specific values exemplified below.
Reference numerals in the drawings of the specification include: the device comprises a shell 100, a material distribution cavity 110, a mixing section 120, an atomizing section 130, a contraction section 131, a throat section 132, an expansion section 133, a lightening hole 140, a feed inlet 150, a separating piece 200, a transverse part 210, a bending part 211, a vertical part 220, a spoiler 300, a rotating shaft 301 and blades 302.
Example one
As shown in fig. 1, fig. 2 and fig. 3, the present embodiment provides an atomizing micro-mixer, which includes a casing 100, a cavity is disposed in the casing 100, a bottom end of the cavity extends out of a bottom end (as viewed from fig. 2) of the casing 100, the cavity is sequentially divided into a material distribution section, a mixing section 120 and an atomizing section 130 along a material flow direction, and the atomizing section 130 includes a contraction section 131, a throat section 132 and an expansion section 133. The cloth section is internally provided with a separator 200, the separator 200 comprises a plurality of transverse parts 210 and a plurality of vertical parts 220, two adjacent transverse parts 210 are connected through the vertical parts 220, the separator 200 separates the space of the cloth section into a plurality of independent cloth cavities 110, in the embodiment, the number of the separators 200 is one, and one separator 200 separates the space of the cloth section into two independent cloth cavities 110. It should be noted that, according to the actual situation, a person skilled in the art can design a suitable number of partitions 200 in the distribution section, so as to partition the space of the distribution section into distribution chambers 110 with the same number of reaction materials.
In addition, in the present embodiment, the number of the lateral portions 210 of the partitioning member 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. Two adjacent transverse portions 210 are arranged in parallel, and the transverse portions 210 are both arranged horizontally, the gap value between two adjacent transverse portions 210 is greater than 0 and less than or equal to 5mm, in this embodiment, the gap value between two adjacent transverse portions 210 is 2mm, so that the reaction materials form a film-like material with a thickness of 2 mm.
The shell 100 is provided with a lightening hole 140 and at least two feed inlets 150, in this embodiment, the number of the feed inlets 150 is two, and the lightening hole 140 is located between the two feed inlets 150. The two feed openings 150 are respectively communicated with the corresponding distribution cavities 110, that is, the left feed opening 150 is communicated with the left distribution cavity 110 and the right feed opening 150 is communicated with the right distribution cavity 110, as viewed in fig. 2.
In practical use, two reaction materials respectively flow into the corresponding distribution cavity 110 through the two feed inlets 150, and the partition 200 can divide the inner space of the distribution cavity 110 into communicated multi-layer spaces due to the special shape of the partition 200, so that the reaction materials flowing into the distribution cavity 110 form multi-layer materials, and the reaction materials form multi-layer film-shaped materials due to the fact that the gap value between the two adjacent transverse portions 210 is 2 mm. For convenience of description, we will name the two reaction materials as reaction material a and reaction material B, and it can be seen from fig. 3 that the multiple layers of film-like materials formed by reaction material a and the multiple layers of film-like materials formed by reaction material B are alternately arranged, i.e. a structure of "film-like material a-film-like material B-film-like material a-film-like material B" is formed, so that when the two reaction materials flow into the mixing section 120 through the corresponding distributing chambers 110, the multiple layers of film-like material a and the multiple layers of film-like material B automatically contact and mix under the action of gravity, and because the contact area of the two reaction materials is large, the mass transfer efficiency of the two reaction materials is high.
Then, the reaction material mixed in the mixing section 120 flows through the atomizing section 130, because the contracting section 131 is tapered and the flow area is contracted, the reaction material flows through the contracting section 131 and then through the throat section 132 and the expanding section 133, the reaction material flows at an increased speed in the contracting section 131, the inner wall of the contracting section 131 impacts and breaks the reaction material, so that the reaction material is atomized, and a high-speed atomized material is obtained (the initial speed of the reaction material when flowing into the feed inlet 150 can be adjusted by a high-pressure valve or a flow meter, and the initial speed of the reaction material can be adjusted to supersonic speed at the highest speed, so that a supersonic atomized material is obtained), the contact area of the atomized reaction material is further increased, and the mass transfer process of the reaction material is facilitated. Therefore, in the atomizing micro-mixer in this embodiment, on one hand, the contact area of the reaction materials is increased by designing the distribution cavity 110 with a special structure, and on the other hand, the atomizing section 130 is designed to atomize the reaction materials and further increase the contact area of the reaction materials, so that the mass transfer efficiency of the reaction materials after entering the reaction tubes (the reaction tubes are communicated with the bottom end of the atomizing micro-mixer) is improved, the occurrence of side reactions in the reaction tubes is reduced, and the productivity and purity of the product are improved.
Example two
The present embodiment is different from the first embodiment only in that: as shown in fig. 4, in the present embodiment, a flow disturbing member 300 is disposed in the expanding section 133, and the flow disturbing member 300 is used to change a flow path of the high-speed atomized material, so as to further improve a mixing degree of the reaction material, and further improve a 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 to the rotating shaft 301, and the rotating shaft 301 is rotatably connected to the inner wall of the expansion section 133.
This embodiment is when in actual use, and the reaction material obtains high-speed atomizing material after atomizing, and high-speed atomizing material strikes on blade 302 to drive blade 302 and pivot 301 and rotate, and pivoted blade 302 can change reaction material's flow path, and then realizes the vortex to reaction material, improves reaction material's mixing effect, thereby improves reaction material's mass transfer efficiency.
EXAMPLE III
The present embodiment is different from the first embodiment or the second embodiment only in that: the partition 200 of this embodiment is slightly different in structure, and in this embodiment, as shown in fig. 5, the number of the lateral portions 210 is five, the number of the vertical portions 220 is six, and the gap between two adjacent lateral portions 210 is 3.5 mm. 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 enable the reaction materials to form a film-shaped material with undulation in the distribution cavity 110, so as to further increase the contact area of the two reaction materials, and further improve the mass transfer efficiency of the reaction materials.
Example four
The present embodiment is different from the third embodiment only in that: as shown in fig. 6, the bent portion 211 in this embodiment is semicircular.
In this embodiment, another shape of the bent portion 211 is provided, and the bent portion 211 in this embodiment is semi-circular, so that the appearance is smoother, and it is more favorable for the reaction material to form a membrane material with undulation in the distribution chamber 110.
EXAMPLE five
The present embodiment is different from the first embodiment or the second embodiment only in that: as shown in fig. 7, in the present embodiment, the number of the transverse portions 210 is five, the number of the vertical portions 220 is six, and the gap between two adjacent transverse portions 210 has a value of 3.5 mm. The transverse portion 210 is wave-shaped, and 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 wave-shaped transverse portion 210 can make the reaction material entering the material distribution chamber 110 form a film-shaped material with larger fluctuation, so as to further increase the contact area of the reaction material, and further improve the mass transfer efficiency of the reaction material.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An atomizing micromixer, comprising a housing, characterized in that: the device comprises a shell, a mixing section, an atomizing section, a separating part and a feeding section, wherein a cavity is arranged in the shell and is sequentially divided into a material distribution section, a mixing section and the atomizing section along the material flow direction, the atomizing section comprises a contraction section, a throat section and an expansion section, the material distribution section is internally provided with the separating part, the separating part comprises a plurality of transverse parts and a plurality of vertical parts, two adjacent transverse parts are connected through the vertical parts, and the separating part 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.
2. The atomizing micromixer of claim 1, wherein: the transverse part is provided with a plurality of bending parts.
3. The atomizing micromixer of claim 2, wherein: the bending part is square or semicircular.
4. The atomizing micromixer of claim 1, wherein: the transverse portion is wave-shaped.
5. The atomizing micromixer of claim 1, wherein: and a turbulence piece is arranged in the expansion section.
6. The atomizing micromixer of claim 5, wherein: the vortex piece includes pivot and a plurality of coaxial fixed connection in the epaxial blade of commentaries on classics, the pivot is rotated and is connected on the inner wall of expansion section.
7. The atomizing micromixer of claim 1, wherein: two adjacent transverse parts are arranged in parallel.
8. The atomizing micromixer of claim 7, wherein: the gap value between two adjacent transverse parts is more than 0 and less than or equal to 5 mm.
9. The atomizing micromixer of claim 7, wherein: the gap value between two adjacent transverse parts is more than or equal to 1mm and less than or equal to 2.5 mm.
10. The atomizing micromixer of claim 1, wherein: and the shell is provided with lightening holes.
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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| CN114452914A true CN114452914A (en) | 2022-05-10 |
| CN114452914B CN114452914B (en) | 2023-08-08 |
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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 |
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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 |
| 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 |
| 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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| CN114452914B (en) | 2023-08-08 |
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