CN216260692U - Microchannel structure and microchannel reactor for strengthening mass transfer - Google Patents
Microchannel structure and microchannel reactor for strengthening mass transfer Download PDFInfo
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- CN216260692U CN216260692U CN202122794422.9U CN202122794422U CN216260692U CN 216260692 U CN216260692 U CN 216260692U CN 202122794422 U CN202122794422 U CN 202122794422U CN 216260692 U CN216260692 U CN 216260692U
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Abstract
The utility model discloses a mass transfer enhancement microchannel structure and a microchannel reactor, wherein the microchannel structure comprises a first microchannel structure unit and a second microchannel structure unit which are communicated with each other; the first micro-channel structure unit and the second micro-channel structure unit are arranged in a mirror symmetry mode; the first micro-channel structural unit comprises a material inlet channel, a first S-shaped channel and a first middle channel which are connected in sequence; the second micro-channel structural unit comprises a second middle channel, a second S-shaped channel and a material outlet channel which are connected in sequence; the material inlet channel, the first middle channel, the second middle channel and the material outlet channel are arranged in parallel; the first micro-channel structure unit and the second micro-channel structure unit are in central symmetry along the middle point of the ring body; wherein, the microchannel reactor comprises a plurality of microchannel structures. The utility model not only can strengthen mixing to ensure that reactants react completely, but also can reduce the occupied space of the microchannel reactor.
Description
Technical Field
The utility model relates to a mass transfer enhancement microchannel structure and a microchannel reactor, belonging to the technical field of chemical equipment.
Background
Compared with the traditional kettle type reactor, the microchannel reactor has excellent mass transfer and heat transfer efficiency, and can effectively improve the reaction efficiency and the safety, so that the microchannel reactor is one of the future development directions. The configuration of the microchannel can improve the mixing efficiency of reaction materials to a certain extent, the configuration of the microchannel in the current market is various, but the configuration of the microchannel pursues the enhancement of the mixing efficiency one by one, so that the structure is too complex, the difficulty is greatly increased for manufacturing the microchannel reactor, the complex configuration brings larger pressure drop, and the requirement on the material of the microchannel reactor is improved.
The micro-channel on the market at present has various forms, such as the existing narrow or heart-shaped channel, but the channels can generate some mixing dead zones in the mixing aspect, so that reactants in the zone are difficult to continuously flow, generally, the micro-channel comprises a plurality of reaction channels, one reaction channel comprises one mixing dead zone, and the mixing dead zones are easy to generate in the reaction channels, so that the whole process not only reduces the material mixing effect and correspondingly reduces the annual output, but also has more material waste, and the industrialized micro-reaction production cannot be completed.
Therefore, there is a need for developing a microchannel reactor with simple structure and capable of fully reacting reactants.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a mass transfer enhancement microchannel structure and a microchannel reactor, which not only can enable reactants to react completely, but also can reduce the occupied space of the microchannel reactor.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
in one aspect, the utility model provides a mass transfer enhancing microchannel structure, comprising a first microchannel structure unit and a second microchannel structure unit which are communicated with each other; the first micro-channel structure unit and the second micro-channel structure unit are arranged in a mirror symmetry mode;
the first micro-channel structural unit comprises a material inlet channel, a first S-shaped channel and a first middle channel which are connected in sequence;
the material inlet channel is arranged in the extending direction of one end of the first S-shaped channel, and the first middle channel is arranged in the extending direction of the other end of the first S-shaped channel;
the second micro-channel structural unit comprises a second middle channel, a second S-shaped channel and a material outlet channel which are connected in sequence;
the second middle channel is arranged in the extending direction of one end of the second S-shaped channel, and the material outlet channel is arranged in the extending direction of the other end of the second S-shaped channel;
the material inlet channel, the first middle channel, the second middle channel and the material outlet channel are arranged in parallel, and the first middle channel is connected with the second middle channel;
the first micro-channel structure unit and the second micro-channel structure unit are both in central symmetry along the middle point of the ring body.
Furthermore, the first S-shaped channel and the second S-shaped channel are both composed of two connected semi-circular ring pipes;
the diameters of the cavities of the material inlet channel, the first S-shaped channel, the first middle channel, the second S-shaped channel and the material outlet channel are equal.
Further, the material inlet channel, the first intermediate channel, the second intermediate channel and the material outlet channel are all linear.
In another aspect, the utility model provides a mass transfer enhanced microchannel reactor comprising a head-end reaction structure section, at least 1 intermediate reaction structure section, a tail-end reaction structure section and a plurality of connecting channels;
the head end reaction structure section, at least 1 middle reaction structure section and the tail end reaction structure section are sequentially connected through a connecting channel;
the adjacent reaction structure sections are horizontally arranged in a mirror image mode;
each reaction structure section comprises a plurality of mass transfer enhancement micro-channel structures, and all the micro-channel structures are connected in sequence;
adjacent microchannel structures are connected by a material inlet channel and a material outlet channel.
Further, the tail end of the tail end reaction structure section is provided with a discharge hole.
Further, a premixing area is arranged at the front end of the head end reaction structure section, the premixing area comprises a first feeding channel, a second feeding channel and a mixed material output channel, and the first feeding channel, the second feeding channel and the mixed material output channel are arranged in a Y shape and are communicated with each other.
Further, a premixing area is arranged at the front end of the head end reaction structure section, the premixing area comprises a first feeding channel, a second feeding channel and a mixed material output channel, and the first feeding channel, the second feeding channel and the mixed material output channel are arranged in a T shape and are communicated with each other.
Further, the included angle formed between the first feeding channel and the second feeding channel is 180 degrees.
Further, the connecting channel is linear.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the double-S-shaped mass transfer enhancement micro-channel structure is arranged, namely the double-S-shaped mass transfer enhancement micro-channel structure comprises four semicircular channels, so that not only can the space be saved, but also the reactants can be more uniformly mixed, secondary flow can occur to the reaction fluid due to the action of centrifugal force at the bending section, the mixing effect of the reactants is enhanced, and the mixing efficiency is improved; in addition, the double S-shaped channels are structurally arranged, so that the reaction channels are more compact, the retention time of materials is increased, and sufficient reaction time is provided for reactants.
The mass transfer enhancement microchannel reactor formed by splicing S-shaped and linear channels is arranged, so that reactants can be mixed more uniformly, the space occupied by the reactor is further reduced, the preparation process can be simplified, and the cleaning difficulty is reduced.
Drawings
FIG. 1 is a front view of one embodiment of an enhanced mass transfer microchannel structure of the utility model;
FIG. 2 is a front view of one embodiment of the mass transfer enhanced microchannel reactor of the present invention;
FIG. 3 is a front view of one embodiment of the mass transfer enhanced microchannel reactor of the present invention;
FIG. 4 is a front view of one embodiment of the pre-mix zone of the present invention;
FIG. 5 is a front view of one embodiment of the pre-mix zone of the present invention;
in the figure: 1. a material inlet channel; 3. a first S-shaped channel; 4. a first intermediate channel; 5. a second intermediate channel; 7. a second S-shaped channel; 8. a material outlet channel; 9. a first feed channel; 10. a second feed channel; 11. a pre-mixing zone; 12. a microchannel structure; 13. a connecting channel; 15. a discharge port; 111. a head-end reaction structure section; 112. an intermediate reaction structure section; 113. a terminal reaction structure section.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
The embodiment provides a mass transfer enhancing microchannel structure, which comprises a first microchannel structure unit and a second microchannel structure unit which are communicated with each other, and is referred to in fig. 1; the first microchannel structure unit and the second microchannel structure unit are arranged in mirror symmetry.
The first micro-channel structural unit comprises a material inlet channel 1, a first S-shaped channel 3 and a first middle channel 4 which are connected in sequence; the material inlet channel 1 is arranged in the extending direction of one end of the first S-shaped channel 3, and the first middle channel 4 is arranged in the extending direction of the other end of the first S-shaped channel 3.
The second micro-channel structural unit comprises a second middle channel 5, a second S-shaped channel 7 and a material outlet channel 8 which are connected in sequence; the second intermediate channel 5 is arranged in the extension direction of one end of the second S-shaped channel 7, and the material outlet channel 8 is arranged in the extension direction of the other end of the second S-shaped channel 7.
Referring to fig. 1, the material inlet channel 1, the first intermediate channel 4, the second intermediate channel 5 and the material outlet channel 8 are arranged parallel to each other, and the first intermediate channel 4 connects the second intermediate channel 5.
The first micro-channel structure unit and the second micro-channel structure unit are in central symmetry along the middle point of the ring body.
According to the utility model, the first S-shaped channel and the second S-shaped channel are arranged, so that the space can be saved, the reactants can be mixed more uniformly, the reaction fluid can flow for the second time due to the action of centrifugal force in the bending section, the mixing effect of the reactants is enhanced, and the mixing efficiency is improved; in addition, the structure of the double S-shaped channels is arranged, so that the structure of the reaction channel is more compact, the retention time of materials is increased, and sufficient reaction time is provided for reactants.
Example 2
On the basis of embodiment 1, the first S-shaped channel 3 and the second S-shaped channel 7 of this embodiment are both composed of two connected semicircular ring pipes, and the cavity diameters of the material inlet channel 1, the first S-shaped channel 3, the first intermediate channel 4, the second intermediate channel 5, the second S-shaped channel 7 and the material outlet channel 8 are equal. In use, the material inlet channel 1, the first intermediate channel 4, the second intermediate channel 5 and the material outlet channel 8 are all straight.
Example 3
This embodiment provides a mass transfer enhanced microchannel reactor, referring to fig. 2 or 3, comprising a head-end reaction structure section 111, at least 1 intermediate reaction structure section 112, a tail-end reaction structure section 113, and a plurality of connecting channels 13; the head-end reaction structure section 111, at least 1 intermediate reaction structure section 112 and the tail-end reaction structure section 113 are connected in sequence by a connecting channel 13; the adjacent reaction structure sections are arranged in a horizontal mirror image mode; each reaction structure section comprises a plurality of mass transfer enhancement micro-channel structures 12 described in the embodiment 1 or 2, and all the micro-channel structures 12 are connected in sequence; adjacent microchannel structures 12 are connected by material inlet channel 1 and material outlet channel 8.
In use, the number of connecting channels 13 is 1 more than the number of intermediate reaction structure sections 112; the connected reaction structure sections are arranged in a snake shape.
According to the utility model, by arranging the plurality of reaction structure sections which are arranged in a snake shape, reactants can be reacted thoroughly, and the space occupied by the microchannel reactor can be further compressed.
Example 4
On the basis of example 3, with reference to fig. 2, the end of the end reaction structure section 113 of this example is provided with a discharge port 15. The head end reaction structure section 111 is provided with a premixing area 11 at the front end, the premixing area comprises a first feeding channel 9, a second feeding channel 10 and a mixed material output channel, and referring to fig. 4, the first feeding channel 9, the second feeding channel 10 and the mixed material output channel are arranged in a Y shape and are communicated with each other. The connecting channel 13 is rectilinear.
The utility model enables the mixing of various materials to be more complete by arranging the premixing area.
Example 5
On the basis of example 3, referring to fig. 3, the head-end reaction structure section 111 of this example is provided with a premixing zone 11 at the front end, the premixing zone comprises a first feeding channel 9, a second feeding channel 10 and a mixed material output channel, and the first feeding channel 9, the second feeding channel 10 and the mixed material output channel are arranged in a T shape and are communicated with each other. Referring to fig. 5, the angle formed between the first feed channel 9 and the second feed channel 10 is 180 °. The connecting channel 13 is rectilinear.
The utility model enables the mixing of various materials to be more complete by arranging the premixing area.
In summary, the microchannel reactor with the mass transfer enhancing microchannel structure is provided, so that reactants can be mixed more uniformly, and the space occupied by the reactor is further reduced; the microchannel reactor with the microchannel structure is formed by splicing S-shaped and linear channels, and has the advantages of simple preparation process and easy cleaning.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A micro-channel structure for strengthening mass transfer is characterized by comprising a first micro-channel structure unit and a second micro-channel structure unit which are communicated with each other; the first micro-channel structure unit and the second micro-channel structure unit are arranged in a mirror symmetry mode;
the first micro-channel structural unit comprises a material inlet channel (1), a first S-shaped channel (3) and a first middle channel (4) which are connected in sequence; the material inlet channel (1) is arranged in the extending direction of one end of the first S-shaped channel (3), and the first middle channel (4) is arranged in the extending direction of the other end of the first S-shaped channel (3);
the second micro-channel structural unit comprises a second middle channel (5), a second S-shaped channel (7) and a material outlet channel (8) which are connected in sequence; the second middle channel (5) is arranged in the extending direction of one end of the second S-shaped channel (7), and the material outlet channel (8) is arranged in the extending direction of the other end of the second S-shaped channel (7);
the material inlet channel (1), the first middle channel (4), the second middle channel (5) and the material outlet channel (8) are arranged in parallel, and the first middle channel (4) is connected with the second middle channel (5);
the first micro-channel structure unit and the second micro-channel structure unit are both in central symmetry along the middle point of the ring body.
2. The mass transfer enhanced microchannel structure of claim 1 wherein the first S-shaped channel (3) and the second S-shaped channel (7) are each comprised of two half-toroidal tubes connected together; the diameters of the cavities of the material inlet channel (1), the first S-shaped channel (3), the first middle channel (4), the second middle channel (5), the second S-shaped channel (7) and the material outlet channel (8) are equal.
3. The mass transfer enhanced microchannel structure of claim 1 wherein the material inlet channel (1), first intermediate channel (4), second intermediate channel (5) and material outlet channel (8) are all linear.
4. A mass transfer enhancement microchannel reactor is characterized by comprising a head-end reaction structure section (111), at least 1 middle reaction structure section (112), a tail-end reaction structure section (113) and a plurality of connecting channels (13);
the head-end reaction structure section (111), at least 1 intermediate reaction structure section (112) and the tail-end reaction structure section (113) are sequentially connected through each connecting channel (13);
the adjacent reaction structure sections are horizontally arranged in a mirror image mode;
each of said reaction structure sections comprising a plurality of mass transfer enhanced microchannel structures (12) as set forth in any one of claims 1-2, each microchannel structure (12) being connected in series;
the adjacent microchannel structures (12) are connected by a material inlet channel (1) and a material outlet channel (8).
5. Mass transfer enhanced microchannel reactor according to claim 4 wherein the end of the end reaction structure section (113) is provided with a discharge port (15).
6. Mass transfer enhanced microchannel reactor according to claim 4, wherein the head end reaction structure section (111) is provided with a premixing zone (11) at the front end, the premixing zone comprising a first feed channel (9), a second feed channel (10) and a mixed material output channel, the first feed channel (9), the second feed channel (10) and the mixed material output channel being arranged in a Y shape and communicating with each other.
7. Mass transfer enhanced microchannel reactor according to claim 4, wherein the head end reaction structure section (111) is provided with a premixing zone (11) at the front end, the premixing zone comprising a first feed channel (9), a second feed channel (10) and a mixed material output channel, the first feed channel (9), the second feed channel (10) and the mixed material output channel being arranged in a T-shape and communicating with each other.
8. Mass transfer enhanced microchannel reactor according to claim 7 wherein the angle formed between the first feed channel (9) and the second feed channel (10) is 180 °.
9. Mass transfer enhanced microchannel reactor according to claim 4 wherein the connecting channels (13) are rectilinear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122794422.9U CN216260692U (en) | 2021-11-16 | 2021-11-16 | Microchannel structure and microchannel reactor for strengthening mass transfer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122794422.9U CN216260692U (en) | 2021-11-16 | 2021-11-16 | Microchannel structure and microchannel reactor for strengthening mass transfer |
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| CN216260692U true CN216260692U (en) | 2022-04-12 |
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| CN202122794422.9U Active CN216260692U (en) | 2021-11-16 | 2021-11-16 | Microchannel structure and microchannel reactor for strengthening mass transfer |
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