CN217313348U - Microchannel reaction structure and microchannel reactor - Google Patents
Microchannel reaction structure and microchannel reactor Download PDFInfo
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- CN217313348U CN217313348U CN202123257831.1U CN202123257831U CN217313348U CN 217313348 U CN217313348 U CN 217313348U CN 202123257831 U CN202123257831 U CN 202123257831U CN 217313348 U CN217313348 U CN 217313348U
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Abstract
The utility model relates to a chemical industry technical field specifically is a microchannel reaction structure and microchannel reactor, and it includes: a microchannel reaction chip, the microchannel reaction chip comprising: reaction runner, conduction oil runner, microchannel reaction chip is three layer construction, and the intermediate level is the reaction runner, and both sides are the conduction oil runner, the reaction runner includes material inlet, elementary structure, mixed structure, material export, material inlet sets up upper end one side at microchannel reaction chip, the one end and the elementary structure of material inlet are connected, the one end and the elementary structure of material export are connected, the elementary structure includes reaction wall, divider wall, the inside of reaction wall is provided with the divider wall, the utility model discloses a runner adopts one minute two, two minutes four, four in four, two in four again, the design of four in four unifications for the mixing efficiency of elementary runner promotes, and the pressure drop of runner reduces simultaneously.
Description
Technical Field
The utility model relates to a chemical industry technical field especially relates to a microchannel reaction structure and microchannel reactor.
Background
Several commercial microchannel reaction structures exist, such as more classical "heart-shaped" channel structures, broken lines, and "umbrella-shaped" structures. These flow channel sections have better mass transfer but the system pressure drop is too large to be used for systems involving high viscosity fluids. Although the pressure drop is small, the mass transfer effect of the partial flow channel is weak. Therefore, it is necessary to develop a microchannel reaction structure with good mass transfer effect, reduced pressure and large liquid holdup of the single plate.
SUMMERY OF THE UTILITY MODEL
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a mixer which solves the problems of low mixing efficiency and high pressure drop by using a design in which a flow path is divided and combined a plurality of times. The utility model discloses a realize above-mentioned purpose through following technical scheme:
according to an aspect of the present invention, there is provided a microchannel reaction structure, including: a microchannel reaction chip, the microchannel reaction chip comprising: reaction runner, conduction oil runner, microchannel reaction chip is three layer construction, and the intermediate level is the reaction runner, and both sides are the conduction oil runner, the reaction runner includes material entry, elementary structure, mixed structure, material export, the material entry sets up upper end one side at microchannel reaction chip, the one end and the elementary structure of material entry are connected, the one end and the elementary structure of material export are connected, the elementary structure includes reaction wall, partition wall, the inside of reaction wall is provided with the partition wall, the partition wall is the rhombus structure, and the partition wall is with a plurality of reaction channel of dividing into inside the reaction wall, mixed structure includes: the device comprises material guide ports and cylindrical mixed structures, wherein the mixed structures are connected with the element structures, each mixed structure is distributed at one end of each row, and fluid enters the cylindrical mixed structures through the material guide ports.
Preferably, the cell structure further comprises an olive cell structure, the olive cell structure comprising: olive-type reaction walls, olive-type partition walls.
Preferably, an olive-shaped partition wall is arranged in the olive-shaped reaction wall, the olive-shaped reaction wall is of an olive-shaped structure, the whole olive-shaped reaction wall is of the olive-shaped structure, and the inside of the olive-shaped reaction wall is divided into a plurality of reaction channels.
Preferably, the cell structure further comprises a star cell structure, the star cell structure comprising: star-shaped reaction walls, star-shaped partition walls.
Preferably, a star-shaped partition wall is arranged in the star-shaped reaction wall, the star-shaped reaction wall is of a star-shaped structure, the star-shaped partition wall is of a star-shaped structure as a whole, and the interior of the star-shaped reaction wall is divided into a plurality of reaction channels.
According to the utility model discloses an on the other hand provides a microchannel reactor, including microchannel reaction structure, microchannel reaction structure is foretell microchannel reaction structure, and microchannel reactor still includes reactor frame main part, display screen, conduction oil way pipe passageway, the shape of reactor frame main part is the cuboid, be equipped with display screen and microchannel reaction chip in the reactor frame main part, conduction oil way pipe passageway is connected with the conduction oil way runner.
The utility model has the advantages as follows:
1. the utility model discloses a runner adopts one minute two, two minutes four, four in four, two in four, the design of two in four for the mixing efficiency of primitive runner promotes, and the pressure drop of runner reduces simultaneously.
2. The utility model discloses an alternate runner setting of elementary structure and mixed structure has not only effectively increased the liquid holdup of reactor, and the pressure drop also obtains further reduction moreover.
3. The utility model discloses a runner is diamond type, star type, olive type, and for heart type runner design, the processing degree of difficulty of reactor reduces, is favorable to the processing of microchannel reactor.
4. The utility model discloses a runner mixes the number of times many in the unit liquid holdup of runner, is favorable to the enlarged design of this runner.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a microchannel reaction chip pair according to the present invention.
Fig. 3 is a schematic view of the reaction flow channel structure of the present invention.
Fig. 4 is a detailed diagram of the cell structure of the present invention.
Fig. 5 is a comparison of the flow velocity distribution between the "diamond" structure and the commercialized "heart" structure of the present invention.
Fig. 6 shows the pressure drop between the "diamond" structure and the commercialized "heart" structure.
Fig. 7 is a comparison of the mixing effect between the "diamond" structure and the commercialized "heart-shaped" structure of the present invention.
Fig. 8 is a schematic view of the flow channel with "olive-shaped" structure of the present invention.
Fig. 9 is a schematic view of the flow channel with a "star" structure according to the present invention.
Fig. 10 is a view showing a specific product of the present invention.
Wherein, 1, the reactor frame main body; 2. a display screen; 3. a microchannel reaction chip; 31. a reaction flow channel; 311. a material inlet; 312. a primitive structure; 3121. a reaction wall; 3122. a partition wall; 313. a hybrid structure; 3131. a material guide port; 3132. a cylindrical hybrid structure; 314. a material outlet; 32. a heat transfer oil flow passage; 323. a reaction channel; 4. a heat-conducting oil line channel; 52. an olive-type elementary structure; 521. an olive-type reaction wall; 522. an olive-shaped partition wall; 62. a star-shaped primitive structure; 621. a star-shaped reaction wall; 622. a star-shaped partition wall.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In addition, for the purpose of more clearly describing the present invention, parts not connected with the present invention will be omitted from the drawings.
Example 1
As shown in fig. 1, a microchannel reactor comprises: the device comprises a reactor frame main body 1, a display screen 2, a micro-channel reaction chip 3 and a heat conduction oil pipeline channel 4;
the reactor frame body 1 is in a cuboid shape, a display screen 2 connected with the reactor frame body is connected with the microchannel reaction chips 3, the temperature of each microchannel reaction chip can be displayed in real time, each microchannel reaction chip 3 is provided with a heat conduction oil inlet and outlet, and heat exchange operation is carried out on the heat conduction oil inlet and outlet and a flow guide oil path pipe channel 4;
as shown in fig. 2, the microchannel reaction chip 3 includes: a reaction flow passage 31 and a heat conduction oil flow passage 32;
the microchannel reaction chip 3 is of a sandwich structure, the middle layer is a reaction flow channel 31 for carrying out a micro reaction, and the two sides are heat conduction oil flow channels 32 for carrying out heat exchange of the reactor;
as shown in fig. 3 and 10, the reaction flow channel 31 includes: a material inlet 311, a primitive structure 312, a mixing structure 313 and a material outlet 314;
the material inlet 311 is arranged on one side of the upper end of the microchannel reaction chip 3 and is used for being connected with an external fluid pipeline, the side walls of the material inlet 311 are mutually parallel, and are connected with the element structure 312 to guide the material into the element structure 312;
as shown in fig. 4, the primitive structure 312 includes: a reaction wall 3121, a partition wall 3122;
a partition wall 3122 is arranged in the reaction wall 3121, the partition wall 3122 is a rhombic structure, the reaction wall 3121 is a rhombic structure as a whole, the interior thereof is divided into a plurality of reaction channels 323, after the fluid M0 enters the reaction wall 3121 from the material inlet 11, the fluid MO is branched under the action of the partition wall 3122, and is divided into two flows a and B equally at a certain angle, the two branches are divided into two branches at the position of the next partition wall 3122 in the fluid movement direction at a certain angle, and the total of four branches, namely, a0 flow and a1 flow, BO flow and B1 flow; then, the A0 flow and the A1 flow are converged to obtain an A2 flow, and the BO flow and the B1 flow are converged to obtain a B2 flow; next, the a2 stream was at an angle A3 stream and a4 stream, the B2 stream was at an angle B3 stream and B4 stream; subsequently, the A3 stream and the a4 stream were recombined to give an a5 stream, and the B3 stream and the B4 stream were also recombined to give a B5 stream; finally, the A5 stream and the B5 stream are mixed to obtain an M1 stream. M1 as the inlet flow, and then enters the next primitive structure 312, and the above process is repeated;
as shown in fig. 4, the mixing structure 313 includes: a material guide port 3131, a cylindrical mixing structure 3132;
the mixing structures 313 are connected to the cell structures 312, each mixing structure 313 is distributed at a single end of each column, and fluid enters the cylindrical mixing structure 3132 through the material guiding port 3131, so that the liquid holdup of the reactor is increased, and the pressure drop is reduced.
As shown in fig. 5-7, the pressure drop of the flow channel of the reaction flow channel 31 is lower in the diamond structure under the same liquid holdup and flow rate, while the pressure drop of the core type is increased, which limits the flux and fluid type of the reactor, and is not beneficial to the development of continuous process.
The utility model discloses a theory of operation:
the fluid enters the elementary structure 312 from the material inlet 11, and under the action of the reaction wall 3121 and the partition wall 3122, the fluid is branched, passes through a mixing process of fluid flow of one fluid for two, two for four, four for two, and two for two, and then enters the next elementary structure 312, and the above processes are repeated;
after flowing through the four primitive structures 312, the fluid enters the mixing structure 313, and then enters the primitive structures 312 to perform a mixing process of one-to-two, two-to-four, four-to-two, and two-to-two, two-to-four, and four-to-two of the fluid, and finally leaves the microchannel reaction chip 3 from the material outlet 314, thereby completing the reaction process.
Example 2
The difference between this example and example 1 is:
as shown in fig. 8, the olive-type cell structure 52 includes: olive-type reaction walls 521, olive-type partition walls 522;
an olive-shaped partition wall 522 is arranged in the olive-shaped reaction wall 521, the olive-shaped reaction wall 521 is of an olive-shaped structure, and the entire olive-shaped reaction wall 521 is of an olive shapeStructure, the interior of which is divided into a plurality of reaction channels, from which a fluid M0 is derivedArticle (A)After the material inlet 11 enters the olive-shaped reaction wall 521, the fluid MO is branched under the action of the olive-shaped partition wall 522, and is divided into two branches a and B equally at a certain angle, and the two branches are divided into two branches at a certain angle at the position of the next olive-shaped partition wall 522 in the fluid movement direction, so that the flows are four branches, namely a0 flow and a1 flow, and BO flow and B1 flow; then, the A0 flow and the A1 flow are converged to obtain an A2 flow, and the BO flow and the B1 flow are converged to obtain a B2 flow; next, the a2 stream was at an angle A3 stream and a4 stream, the B2 stream was at an angle B3 stream and B4 stream; subsequently, the A3 stream and the a4 stream were recombined to give an a5 stream, and the B3 stream and the B4 stream were also recombined to give a B5 stream; finally, the A5 stream and the B5 stream are mixed to obtain an M1 stream. M1 as the inlet fluid, and then enters the next olive-type cell structure 52, and the above process is repeated;
the olive-shaped elementary structure 52 brings more arc-shaped foldback than the diamond-shaped structure, the diamond-shaped structure is more impact, the olive-shaped reaction wall 521 makes the fluid flow more moderate, and the flow time is increased;
example 3
As shown in fig. 9, the star-shaped primitive structure 62 includes: star-shaped reaction walls 621, star-shaped partition walls 622;
a star-shaped partition wall 622 is arranged in the star-shaped reaction wall 621, the star-shaped reaction wall 621 is in a star-shaped structure, the star-shaped partition wall 622 is integrally in a star-shaped structure, the interior of the star-shaped partition wall 622 is divided into a plurality of reaction channels, after the fluid M0 enters the star-shaped reaction wall 621 from the material inlet 11, the fluid MO is branched under the action of the star-shaped partition wall 622 and is divided into two branches A and B at a certain angle, the two branches are divided into two branches at the position of the next star-shaped partition wall 622 in the fluid movement direction at a certain angle, and the two branches are divided into four branches, namely, the A0 flow and the A1 flow, and the BO flow and the B1 flow; then, the A0 flow and the A1 flow are converged to obtain an A2 flow, and the BO flow and the B1 flow are converged to obtain a B2 flow; next, the a2 stream was at an angle A3 stream and a4 stream, the B2 stream was at an angle B3 stream and B4 stream; the A3 and a4 streams were then recombined to give an a5 stream, and a B3 and B4 streams were also recombined with a B5 stream; finally, the A5 flow and the B5 flow are mixed to obtain an M1 flow. M1 as the inlet flow, and then enters the next star-shaped primitive structure 52, and the above process is repeated;
the star-shaped cell structure 52 brings more impact than the olive-shaped structure, the impact and the turn-back of the olive-shaped cell structure 52 are milder, wherein the star-shaped reaction walls 521 make the impact force of the fluid flow stronger and more turbulent.
Claims (6)
1. A microchannel reaction structure comprising: a microchannel reaction chip (3); the method is characterized in that: the microchannel reaction chip (3) comprises: the reaction flow channel (31) and the heat-conducting oil flow channel (32) are of a three-layer structure, the middle layer is the reaction flow channel (31), the two sides of the reaction flow channel are the heat-conducting oil flow channel (32), the reaction flow channel (31) comprises a material inlet (311), a primitive structure (312), a mixed structure (313) and a material outlet (314), the material inlet (311) is arranged on one side of the upper end of the microchannel reaction chip (3), one end of the material inlet (311) is connected with the primitive structure (312), one end of the material outlet (314) is connected with the primitive structure (312), the primitive structure (312) comprises a reaction wall (3121) and a partition wall (3122), a partition wall (3122) is arranged inside the reaction wall (3121), the partition wall (3122) is of a diamond structure, and the partition wall (3122) divides the inside of the reaction wall into a plurality of reaction channels (323), the mixing structure (313) comprises: a material guide port (3131) and cylindrical mixing structures (3132), wherein the mixing structures (313) are connected with the element structures (312), each mixing structure (313) is distributed on a single end of each row, and fluid enters the cylindrical mixing structures (3132) through the material guide port (3131).
2. A microchannel reactor structure according to claim 1 wherein: the cell structure (312) further comprises an olive cell structure (52), the olive cell structure (52) comprising: olive-shaped reaction walls (521), olive-shaped partition walls (522).
3. A microchannel reactor structure according to claim 2 wherein: an olive-shaped partition wall (522) is arranged in the olive-shaped reaction wall (521), the olive-shaped reaction wall (521) is of an olive-shaped structure, the whole olive-shaped reaction wall (521) is of the olive-shaped structure, and the inside of the olive-shaped reaction wall (521) is divided into a plurality of reaction channels.
4. A microchannel reactor structure according to claim 1 wherein: the cell structure (312) further comprises a planetary cell structure (62), the planetary cell structure (62) comprising: a star-shaped reaction wall (621) and a star-shaped partition wall (622).
5. The microchannel reactor assembly of claim 4, wherein: be provided with star partition wall (622) in star reaction wall (621), star reaction wall (621) is the star structure, star partition wall (622) is whole to be the star structure, the inside of star reaction wall (621) divides into a plurality of reaction channels.
6. A microchannel reactor, comprising a microchannel reaction structure, characterized in that: the microchannel reactor structure of any one of claims 1 to 5, the microchannel reactor further comprising: the reactor comprises a reactor frame main body (1), a display screen (2) and a heat conduction oil channel (4), wherein the reactor frame main body (1) is cuboid in shape, the reactor frame main body (1) is provided with the display screen (2) and a micro-channel reaction chip (3), and the heat conduction oil channel (4) is connected with a heat conduction oil channel (32).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114053973A (en) * | 2021-12-21 | 2022-02-18 | 安徽科芯微流化工科技有限公司 | Microchannel reaction structure and microchannel reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114053973A (en) * | 2021-12-21 | 2022-02-18 | 安徽科芯微流化工科技有限公司 | Microchannel reaction structure and microchannel reactor |
| CN114053973B (en) * | 2021-12-21 | 2024-06-25 | 安徽科芯微流化工科技有限公司 | Microchannel reaction structure and microchannel reactor |
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