A micro mixer

Abstract

This application relates to the field of chemical machinery, and particularly to a micromixer. The micromixer provided by this application includes a first mixing plate, a second mixing plate, and a seal. The first mixing portion has a first branch portion and a first confluence portion. At least two medium inlets are connected to the first branch portion. The second mixing portion has a second branch portion corresponding to the first branch portion and a second confluence portion correspondingly arranged with the first confluence portion. The first confluence portion and the second confluence portion together form a mixing channel and a mixing chamber, effectively ensuring the full mixing of the mixed medium, ensuring the consistency of the mixing channel and the chamber. At the same time, the seal is arranged at the connection between the first mixing portion and the second mixing portion, avoiding the phenomenon of leakage of the mixed medium, ensuring the stability and safety of the micromixer, and having a simple structure and easy operation.

Description

Technical Field

[0001] This application relates to the field of chemical machinery, and particularly to a micromixer. Background Art

[0002] In the chemical industry, most raw material mixing reactions need to be carried out under certain temperature, pressure or with a specified catalyst provided. Especially in the field of microreaction systems, after the raw materials transported by the volumetric conveying equipment enter the reactor, due to the initial mixing of the raw materials not reaching the required degree, it will inevitably cause an increase in the residence time of the raw materials in the reactor, affecting the reaction efficiency. Experiments show that in a microreaction system, the addition of a front-end mixer can significantly promote the reaction efficiency, product conversion rate and yield. Therefore, the application of micromixers in the field of microchemical engineering is very necessary.

[0003] A micromixer refers to a micro mixer manufactured by means such as precision machining technology, and its size is usually between 10 μm and 3000 μm. It should be noted that the "micro" of the micromixer does not specifically refer to the small external dimension of the micromixer device, nor the small production volume of the micromixer device product, but indicates that the mixing channels of the process fluid (mixing and reaction medium) are in the micrometer to millimeter level. A micromixer is a continuous-flow pipe-type mixer, including highly integrated units such as heat exchange, mixing, separation, analysis and control. For a micromixer, it should have tiny mixing channels, mixing chambers and unique laminar mass transfer, and these characteristics determine that it has excellent heat transfer, mass transfer and mixing performance that conventional mixers cannot match. Currently, the following problems exist in traditional micromixers: it is impossible to ensure the full mixing of the mixed medium; it is impossible to ensure the consistency of the mixing channels and chambers; the corrosion resistance of the micromixer is poor; it is not convenient for disassembly and cleaning, and thus it is impossible to prevent the blockage of the micromixer channels, and the structure is complex. Summary of the Invention

[0004] In view of this, the purpose of the embodiments of this application is to provide a micromixer, which can effectively solve the above technical problems.

[0005] In the first aspect, an embodiment of the present application provides a micromixer, comprising a first mixing plate, a second mixing plate and a sealing member; the first mixing plate has a first mixing surface and a first cover surface arranged opposite to each other, the first mixing surface is provided with a first mixing section, and the first cover surface is provided with at least two medium inlets; the second mixing plate has a second mixing surface and a second cover surface, the second mixing surface is provided with a second mixing section; the sealing member is arranged at the connection between the first mixing section and the second mixing section; wherein, the first mixing section has a first branch section and a first mixing section, the at least two medium inlets are connected to the first branch section, the second mixing section has a second branch section corresponding to the first branch section, and a second mixing section arranged corresponding to the first mixing section; the first mixing section and the second mixing section together form a mixing flow channel and a mixing chamber.

[0006] In an optional embodiment according to the first aspect, a mixed medium outlet communicating with the first mixing section is further provided on the first cover surface, and the mixed medium outlet and the medium inlet are respectively arranged at both ends of the first mixing section, so that the medium to be mixed enters the mixing channel through the medium inlet and the mixing chamber after mixing and flows out through the mixed medium outlet. It should be noted that in this embodiment, a mixed medium outlet communicating with the first mixing section is further provided on the first cover surface, and the mixed medium outlet and the medium inlet are respectively arranged at both ends of the first mixing section, so that the medium to be mixed enters the mixing channel through the medium inlet and the mixing chamber after mixing and flows out through the mixed medium outlet. During the medium mixing process, different media to be mixed enter the mixing channel and the mixing chamber through at least two medium inlets respectively, and flow out through the mixed medium outlet after mixing, which is conducive to uniform mixing. In addition, the mixed medium outlet is arranged on the first cover surface, which facilitates the arrangement of the medium inlet pipe and the mixed medium discharge pipe on the same side of the first cover surface, making the pipeline arrangement neater and easier to observe and control. At the same time, it should be noted that the mixed medium outlet and the medium inlet are respectively arranged at both ends of the first mixing part, so that the medium can flow out through the mixed medium outlet after being mixed in the mixing channel and the mixing chamber.

[0007] In an optional embodiment according to the first aspect, the first branch portion has two diversion grooves arranged at an angle, and the two diversion grooves meet at the first mixing portion, and the at least two medium inlets are arranged on the diversion grooves. It should be noted that in this embodiment, the first branch portion having two diversion grooves arranged at an angle, the two diversion grooves meeting at the first mixing portion, and the at least two medium inlets being arranged on the diversion grooves facilitate, during the medium mixing process, after injecting the medium to be mixed into the medium inlets provided on the diversion grooves, flowing into the first mixing portion at the intersection under the action of the inclined diversion grooves arranged at an angle, thereby facilitating centralized mixing and facilitating grasping the position where the medium to be mixed reacts.

[0008] Specifically, in an optional embodiment according to the first aspect, three medium inlets are provided on the first cover plate surface; the three medium inlets are distributed at the branch and intersection of the diversion grooves. Specifically, it should be noted that in this embodiment, three medium inlets are provided on the first cover plate surface; the three medium inlets are distributed at the branch and intersection of the diversion grooves, which facilitates injecting the medium from the branch and the intersection respectively during the mixing process to achieve mixing.

[0009] In an optional embodiment according to the first aspect, the micromixer further includes a temperature sensor, and the temperature sensor is arranged at the intersection of the two diversion grooves for measuring the temperature when different media are mixed. It should be noted that in this embodiment, the micromixer further includes a temperature sensor, and the temperature sensor is arranged at the intersection of the two diversion grooves for measuring the temperature when different media are mixed, which facilitates the user to measure the temperature when different media react during use.

[0010] In an optional embodiment according to the first aspect, a first protruding intercepting block group and a first concave groove group are provided on the first mixed flow portion. The first protruding intercepting block group is composed of a plurality of first protruding intercepting blocks arranged in a wavy shape. The first concave groove group is composed of a plurality of first concave grooves arranged in a wavy shape. The first protruding intercepting block group and the first concave groove group are arranged alternately, and each first protruding intercepting block is arranged at an angle with the first concave groove. A second protruding intercepting block group and a second concave groove group are provided on the second mixed flow portion. The second protruding intercepting block group is composed of a plurality of second protruding intercepting blocks arranged in a wavy shape. The second concave groove group is composed of a plurality of second concave grooves arranged in a wavy shape. The second protruding intercepting block group and the second concave groove group are arranged alternately, and each second protruding intercepting block is arranged at an angle with the second concave groove. Among them, the first protruding intercepting block cooperates with the second concave groove, and the first concave groove cooperates with the second protruding intercepting block to jointly form the wavy mixed flow channel and the wavy mixed chamber. It should be noted that in this embodiment, a first protruding intercepting block group and a first concave groove group are provided on the first mixed flow portion. The first protruding intercepting block group is composed of a plurality of first protruding intercepting blocks arranged in a wavy shape, and the first concave groove group is composed of a plurality of first concave grooves arranged in a wavy shape. The first protruding intercepting block group and the first concave groove group are arranged alternately, and each first protruding intercepting block is arranged at an angle with the first concave groove. A second protruding intercepting block group and a second concave groove group are provided on the second mixed flow portion. The second protruding intercepting block group is composed of a plurality of second protruding intercepting blocks arranged in a wavy shape, and the second concave groove group is composed of a plurality of second concave grooves arranged in a wavy shape. The second protruding intercepting block group and the second concave groove group are arranged alternately, and each second protruding intercepting block is arranged at an angle with the second concave groove. Furthermore, the first protruding intercepting block cooperates with the second concave groove, and the first concave groove cooperates with the second protruding intercepting block to jointly form the wavy mixed flow channel and the wavy mixed chamber. It is convenient for the mixture of different media to flow in the wavy mixed flow channel and the wavy mixed chamber. During the flow process, according to the shape and structural characteristics of the wavy flow channel and the wavy mixed chamber, the mixed medium is mixed more fully, and the consistency of the mixing channel and the chamber is ensured.

[0011] In an optional embodiment according to the first aspect, the first protruding intercepting block is arranged as a strip-shaped protrusion, and the cross-sectional dimension of the first protruding intercepting block gradually decreases along the direction away from the first mixing surface; the second protruding intercepting block is arranged as a strip-shaped protrusion, and the cross-sectional dimension of the second protruding intercepting block gradually decreases along the direction away from the second mixing surface. It should be noted that in this embodiment, the first protruding intercepting block is arranged as a strip-shaped protrusion, and the cross-sectional dimension of the first protruding intercepting block gradually decreases along the direction away from the first mixing surface; the second protruding intercepting block is arranged as a strip-shaped protrusion, and the cross-sectional dimension of the second protruding intercepting block gradually decreases along the direction away from the second mixing surface, that is, it is arranged as a trapezoidal structure, which makes it more convenient for the first protruding intercepting block to cooperate with the second concave groove and is convenient for installation; similarly, it also makes it more convenient for the second protruding intercepting block to cooperate with the first concave groove and is convenient for installation.

[0012] In an optional embodiment according to the first aspect, the first mixing plate and the second mixing plate are detachably connected by screws and nuts, and corresponding connection threaded through holes for cooperating with the screws are formed on the first mixing plate and the second mixing plate. It should be noted that in this embodiment, the first mixing plate and the second mixing plate are detachably connected by screws and nuts, and corresponding connection threaded through holes for cooperating with the screws are formed on the first mixing plate and the second mixing plate. During the installation process, the screws penetrate through the connection threaded through holes. After the first mixing plate and the second mixing plate are combined in place, the nuts are installed to make the overall structure firmly connected. And when cleaning is required, the first mixing plate and the second mixing plate can be cleaned by disassembling the screws and nuts. Furthermore, it is convenient for disassembly and cleaning, and effectively prevents the blockage of the micro-mixer channels.

[0013] In an optional embodiment according to the first aspect, the micro-mixer further includes a guide pin. It should be noted that setting the guide pin is convenient for guiding the installation during the installation and cooperation, and is convenient for the user to position and install.

[0014] In an optional embodiment according to the first aspect, the first mixing plate and the second mixing plate are made of one or more of stainless steel, glass, ceramic or polymer materials. It should be noted that in this embodiment, the first mixing plate and the second mixing plate are made of one or more of stainless steel, glass, ceramic or polymer materials. The above materials have good corrosion resistance, making the micro-mixer have better corrosion resistance, and effectively ensuring its service life.

[0015] A micro-mixer provided by the present application has at least the following beneficial effects compared with the prior art:

[0016] The micromixer provided by this application includes a first mixing plate, a second mixing plate, and a seal. The first mixing portion has a first branch portion and a first confluence portion. At least two medium inlets are connected to the first branch portion. The second mixing portion has a second branch portion corresponding to the first branch portion and a second confluence portion arranged corresponding to the first confluence portion. The first confluence portion and the second confluence portion jointly form a mixing flow channel and a mixing chamber, effectively ensuring the full mixing of the mixed medium, ensuring the consistency of the mixing channel and the chamber. At the same time, the seal is arranged at the connection between the first mixing portion and the second mixing portion, avoiding the phenomenon of leakage of the mixed medium, ensuring the stability and safety of the micromixer, and having a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the following, this application will be described in more detail based on embodiments and with reference to the drawings.

[0018] Figure 1 is an exploded view of the micromixer according to an embodiment of this application;

[0019] Figure 2 is a schematic structural diagram of the first mixing plate of the micromixer according to an embodiment of this application;

[0020] Figure 3 is Figure 2 the enlarged view at III in

[0021] Figure 4 is a schematic structural diagram of the second mixing plate of the micromixer according to an embodiment of this application;

[0022] Figure 5 is Figure 4 the enlarged view at V in

[0023] Figure 6 is a schematic structural diagram of the seal of the micromixer according to an embodiment of this application;

[0024] Figure 7 is Figure 6 the enlarged view at VII in

[0025] Figure 8 is a front view of the micromixer according to an embodiment of this application;

[0026] Figure 9 is a schematic D-D cross-sectional view;

[0027] Figure 10 is Figure 9 the enlarged view at X in

[0028] Figure 11 is a schematic E-E cross-sectional view;

[0029] Figure 12 is Figure 11 the enlarged view at XII in

[0030] Figure 13 the schematic view of the F - F section;

[0031] Figure 14 is Figure 11 the enlarged view at XIV in

[0032] In the accompanying drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0033] Reference numerals:

[0034] 10 - Micro - mixer; 11 - First mixing plate; 111 - First mixing surface; 112 - First mixing part; 1121 - First branch part; 1122 - Shunt groove; 1123 - First mixed - flow part; 1124 - First convex intercepting block group; 1125 - First convex intercepting block; 1126 - First concave groove group; 1127 - First concave groove; 113 - First cover plate surface; 113a - Medium inlet; 113b - Mixed medium outlet; 13 - Second mixing plate; 131 - Second mixing surface; 132 - Second mixing part; 1321 - Second branch part; 1323 - Second mixed - flow part; 1324 - Second convex intercepting block group; 1325 - Second convex intercepting block; 1326 - Second concave groove group; 1327 - Second concave groove; 133 - Second cover plate surface; 15 - Seal; 151 - Sealing groove; 153 - Screw; 155 - Nut; 157 - Connecting threaded through - hole; 159 - Guide pin; 16 - Mixed flow channel; 17 - Mixing chamber. Detailed implementation manners

[0035] The present application will be further described below in conjunction with the detailed implementation manners. It should be understood that these detailed implementation manners are only used to illustrate the present application and not to limit the scope of the present application.

[0036] For the sake of brevity, only some numerical ranges are specifically disclosed herein. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with other lower limits to form a range not explicitly recited, and similarly any upper limit can be combined with any other upper limit to form a range not explicitly recited. In addition, each individually disclosed point or single numerical value itself can be used as a lower limit or an upper limit and combined with any other point or single numerical value or combined with other lower limits or upper limits to form a range not explicitly recited.

[0037] In the description herein, it should be noted that unless otherwise specified, "above" and "below" include this number, and in "one or several", the meaning of "several" is two or more.

[0038] Unless otherwise specified, the terms used in this application have the well-known meanings commonly understood by those skilled in the art. Unless otherwise specified, the numerical values of the various parameters mentioned in this application can be measured by various commonly used measurement methods in the art (for example, they can be tested according to the methods given in the embodiments of this application).

[0039] Please refer to Figures 1 to 14 , an embodiment of the present application provides a micro mixer 10, which includes a first mixing plate 11, a second mixing plate 13, and a seal 15; the first mixing plate 11 has a first mixing surface 111 and a first cover surface 113 arranged opposite to each other, the first mixing surface 111 is provided with a first mixing portion 112, and the first cover surface 113 is provided with at least two medium inlets 113a; the second mixing plate 13 has a second mixing surface 131 and a second cover surface 133, the second mixing surface 131 is provided with a second mixing portion 132; the seal 15 is arranged at the connection between the first mixing portion 112 and the second mixing portion 132; wherein, the first mixing portion 112 has a first branch portion 1121 and a first confluence portion 1123, the at least two medium inlets 113a are communicated with the first branch portion 1121, the second mixing portion 132 has a second branch portion 1321 corresponding to the first branch portion 1121, and a second confluence portion 1323 corresponding to the first confluence portion 1123; the first confluence portion 1123 and the second confluence portion 1323 together form a mixing channel 16 and a mixing chamber 17.

[0040] Specifically, in this embodiment, the first mixing plate 11 and the second mixing plate 13 are provided with a sealing groove 151 for accommodating the seal 15, and the sealing groove 151 is arranged along the outer edges of the first mixing portion 112 and the second mixing portion 132, thereby ensuring the sealing performance of the mixing channel 16 and the mixing chamber 17.

[0041] The micromixer 10 provided herein includes a first mixing plate 11, a second mixing plate 13, and a seal 15. The first mixing section 112 includes a first branch portion 1121 and a first mixing section 1123. The at least two medium inlets 113a communicate with the first branch portion 1121. The second mixing section 132 includes a second branch portion 1321 corresponding to the first branch portion 1121 and a second mixing section 1323 corresponding to the first mixing section 1123. The first mixing section 1123 and the second mixing section 1323 together form a mixing channel 16 and a mixing chamber 17. This effectively ensures sufficient mixing of the mixed medium and the consistency of the mixing channel and chamber. The seal 15 is disposed at the junction of the first mixing section 112 and the second mixing section 132 to prevent leakage of the mixed medium, thereby ensuring the stability and safety of the micromixer 10. Furthermore, the structure is simple and easy to operate.

[0042] In an optional exemplary embodiment, a mixed medium outlet 113b connected to the first mixing section 112 is further provided on the first cover surface 113, and the mixed medium outlet 113b and the medium inlet 113a are respectively arranged at both ends of the first mixing section 112, so that the medium to be mixed enters the mixing channel 16 and the mixing chamber 17 through the medium inlet 113a and flows out through the mixed medium outlet 113b after mixing. It should be noted that in this embodiment, a mixed medium outlet 113b connected to the first mixing part 112 is also provided on the first cover surface 113, and the mixed medium outlet 113b and the medium inlet 113a are respectively arranged at the two ends of the first mixing part 112, so that the medium to be mixed enters the mixing channel 16 and the mixing chamber 17 through the medium inlet 113a, and then flows out through the mixed medium outlet 113b after mixing. During the medium mixing process, different media to be mixed enter the mixing channel 16 and the mixing chamber 17 through at least two medium inlets 113a, and then flow out through the mixed medium outlet 113b after mixing, which is conducive to uniform mixing. In addition, the mixed medium outlet 113b is arranged on the first cover surface 113, so that the medium inlet pipe and the mixed medium discharge pipe are both arranged on the same side of the first cover surface 113, so that the pipeline arrangement is relatively neat and convenient for observation and control. At the same time, it should be noted that the mixed medium outlet 113b and the medium inlet 113a are respectively arranged at both ends of the first mixing part 112, so that the medium can flow out through the mixed medium outlet 113b after mixing in the mixing channel 16 and the mixing chamber 17.

[0043] In an optionally exemplary embodiment, the first branch portion 1121 has two diversion channels 1122 arranged at an angle, and the two diversion channels 1122 converge at the first mixing portion 1123. The at least two medium inlets 113a are arranged on the diversion channels 1122. It should be noted that in this embodiment, the first branch portion 1121 having two diversion channels 1122 arranged at an angle, the two diversion channels 1122 converging at the first mixing portion 1123, and the at least two medium inlets 113a being arranged on the diversion channels 1122 facilitate, during the medium mixing process, after injecting the medium to be mixed through the medium inlets 113a provided on the diversion channels 1122, flowing into the first mixing portion 1123 at the intersection under the action of the inclination of the diversion channels 1122 arranged at an angle, thereby facilitating centralized mixing and facilitating the control of the position where the medium to be mixed reacts.

[0044] Specifically, in an optionally exemplary embodiment, the first cover plate surface 113 is provided with three medium inlets 113a; the three medium inlets 113a are distributed at the branch and intersection of the diversion channels 1122. Specifically, it should be noted that in this embodiment, the first cover plate surface 113 is provided with three medium inlets 113a; the three medium inlets 113a being distributed at the branch and intersection of the diversion channels 1122 facilitate injecting media from the branch and intersection respectively during the mixing process to achieve mixing. It can be understood that the number of medium inlets 113a is not limited here. In other specific embodiments, according to the user's needs, the number of medium inlets 113a can also be set to two, four, five, etc.

[0045] Specifically, in an optionally exemplary embodiment, the diameter of the medium inlet 113a gradually decreases along the direction away from the first cover plate surface 113, that is, the outer hole of the medium inlet 113a on the first mixing plate 11 is larger than the inner hole of the mixing channel; at the same time, a thread is provided on the side close to the first cover plate surface 113 to facilitate connecting the medium injection pipeline.

[0046] In an optionally exemplary embodiment, the micromixer 10 further includes a temperature sensor, and the temperature sensor is arranged at the intersection of the two diversion channels 1122 for measuring the temperature when different media are mixed. It should be noted that in this embodiment, the micromixer 10 further includes a temperature sensor, and the temperature sensor is arranged at the intersection of the two diversion channels 1122 for measuring the temperature when different media are mixed, which facilitates the user to measure the temperature when different media are mixed and react during the use process.

[0047] In an optionally exemplary embodiment, a first protruding intercepting block group 1124 and a first concave groove group 1126 are provided on the first mixing part 1123. The first protruding intercepting block group 1124 is composed of a plurality of first protruding intercepting blocks 1125 arranged in a wavy shape. The first concave groove group 1126 is composed of a plurality of first concave grooves 1127 arranged in a wavy shape. The first protruding intercepting block group 1124 and the first concave groove group 1126 are arranged alternately. Each first protruding intercepting block 1125 is arranged at an angle with the first concave groove 1127. A second protruding intercepting block group 1324 and a second concave groove group 1326 are provided on the second mixing part 1323. The second protruding intercepting block group 1324 is composed of a plurality of second protruding intercepting blocks 1325 arranged in a wavy shape. The second concave groove group 1326 is composed of a plurality of second concave grooves 1327 arranged in a wavy shape. The second protruding intercepting block group 1324 and the second concave groove group 1326 are arranged alternately. Each second protruding intercepting block 1325 is arranged at an angle with the second concave groove 1327. Among them, the first protruding intercepting block 1125 cooperates with the second concave groove 1327, and the first concave groove 1127 cooperates with the second protruding intercepting block 1325 to jointly form the wavy mixing channel 16 and the wavy mixing chamber 17. It should be noted that in this embodiment, a first protruding intercepting block group 1124 and a first concave groove group 1126 are provided on the first mixing part 1123. The first protruding intercepting block group 1124 is composed of a plurality of first protruding intercepting blocks 1125 arranged in a wavy shape. The first concave groove group 1126 is composed of a plurality of first concave grooves 1127 arranged in a wavy shape. The first protruding intercepting block group 1124 and the first concave groove group 1126 are arranged alternately. Each first protruding intercepting block 1125 is arranged at an angle with the first concave groove 1127. A second protruding intercepting block group 1324 and a second concave groove group 1326 are provided on the second mixing part 1323. The second protruding intercepting block group 1324 is composed of a plurality of second protruding intercepting blocks 1325 arranged in a wavy shape. The second concave groove group 1326 is composed of a plurality of second concave grooves 1327 arranged in a wavy shape. The second protruding intercepting block group 1324 and the second concave groove group 1326 are arranged alternately. Each second protruding intercepting block 1325 is arranged at an angle with the second concave groove 1327. Furthermore, the first protruding intercepting block 1125 cooperates with the second concave groove 1327, and the first concave groove 1127 cooperates with the second protruding intercepting block 1325 to jointly form the wavy mixing channel 16 and the wavy mixing chamber 17.It is convenient to flow in the wavy mixing channel 16 and the wavy mixing chamber 17 after different media are mixed. During the flowing process, according to the shape and structural characteristics of the wavy channel and the wavy mixing chamber 17, the mixed media are mixed more fully, and the consistency of the mixing channel and the chamber is ensured.

[0048] In an optionally exemplary embodiment, the first protruding intercepting block 1125 is arranged as a long strip-shaped protrusion, and the cross-sectional dimension of the first protruding intercepting block 1125 gradually decreases along the direction away from the first mixing surface 111; the second protruding intercepting block 1325 is arranged as a long strip-shaped protrusion, and the cross-sectional dimension of the second protruding intercepting block 1325 gradually decreases along the direction away from the second mixing surface 131. It should be noted that in this embodiment, the first protruding intercepting block 1125 is arranged as a long strip-shaped protrusion, and the cross-sectional dimension of the first protruding intercepting block 1125 gradually decreases along the direction away from the first mixing surface 111; the second protruding intercepting block 1325 is arranged as a long strip-shaped protrusion, and the cross-sectional dimension of the second protruding intercepting block 1325 gradually decreases along the direction away from the second mixing surface 131, that is, it is arranged as a trapezoidal structure, which is convenient for the first protruding intercepting block 1125 to be more convenient to cooperate with the second concave groove 1327 and is convenient for installation; similarly, it also makes the second protruding intercepting block 1325 more convenient to cooperate with the first concave groove 1127 and is convenient for installation.

[0049] In an optionally exemplary embodiment, the first mixing plate 11 and the second mixing plate 13 are detachably connected by screws 153 and nuts 155, and connection threaded through holes 157 matching the screws 153 are correspondingly opened on the first mixing plate 11 and the second mixing plate 13. It should be noted that in this embodiment, the first mixing plate 11 and the second mixing plate 13 are detachably connected by screws 153 and nuts 155, and connection threaded through holes 157 matching the screws 153 are correspondingly opened on the first mixing plate 11 and the second mixing plate 13. During the installation process, the screws 153 penetrate through the connection threaded through holes 157, so that after the first mixing plate 11 and the second mixing plate 13 are combined in place, the nuts 155 are installed to make the overall structure firmly connected. And when cleaning is needed, the first mixing plate 11 and the second mixing plate 13 can be cleaned by disassembling the screws 153 and the nuts 155. Furthermore, it is convenient for disassembly and cleaning, and effectively prevents the blockage of the channels of the micromixer 10. The micromixer 10 provided by the present application has a simple structure, is convenient for disassembly, assembly and cleaning of the micro mixing channels. And when the reaction product particles are deposited on the inner wall of the microchannel, it can be detachably opened for cleaning.

[0050] In an optionally exemplary embodiment, the micro-mixer 10 further includes a guide pin 159. It should be noted that the provision of the guide pin 159 facilitates guiding during installation and mating, facilitates user positioning during installation, and facilitates ensuring the assembly accuracy between the first mixing plate 11 and the second mixing plate 13.

[0051] In an optionally exemplary embodiment, the first mixing plate 11 and the second mixing plate 13 are made of one or more of stainless steel, glass, ceramic or polymer materials. It should be noted that in this embodiment, the first mixing plate 11 and the second mixing plate 13 are made of one or more of stainless steel, glass, ceramic or polymer materials, and the above materials have good corrosion resistance, so that the micro-mixer 10 has better corrosion resistance, thereby effectively ensuring its service life.

[0052] Although the present application has been described with reference to preferred embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A micro mixer, characterized in that: include: a first mixing plate, the first mixing plate comprising a first mixing surface and a first cover surface arranged opposite to each other, the first mixing surface defining a first mixing portion, the first cover surface defining at least two medium inlets, and the first cover surface further defining a mixed medium outlet communicating with the first mixing portion, the mixed medium outlet and the medium inlet being respectively disposed at two ends of the first mixing portion; A second mixing plate, the second mixing plate having a second mixing surface and a second cover surface, the second mixing surface being provided with a second mixing portion; and a sealing member, the sealing member being provided at a connection between the first mixing portion and the second mixing portion; The first mixing section includes a first branching section and a first flow mixing section, the at least two medium inlets are connected to the first branching section, the second mixing section includes a second branching section corresponding to the first branching section, and a second flow mixing section corresponding to the first flow mixing section; the first flow mixing section and the second flow mixing section together form a mixing channel and a mixing chamber; The first branch portion has two diverter grooves arranged at an angle, the two diverter grooves intersect at the first mixing portion, and the at least two medium inlets are arranged on the diverter grooves; The first flow mixing portion is provided with a first protruding intercepting block group and a first recessed groove group. The first protruding intercepting block group is composed of a plurality of first protruding intercepting blocks arranged in a wave shape, and the first recessed groove group is composed of a plurality of first recessed grooves arranged in a wave shape. The first protruding intercepting block group and the first recessed groove group are arranged alternately, and each first protruding intercepting block is arranged at an angle to the first recessed groove. The second mixing portion is provided with a second protruding intercepting block group and a second recessed groove group. The second protruding intercepting block group is composed of a plurality of second protruding intercepting blocks arranged in a wave shape. The second recessed groove group is composed of a plurality of second recessed grooves arranged in a wave shape. The second protruding intercepting block group and the second recessed groove group are arranged alternately. Each second protruding intercepting block is arranged at an angle to the second recessed groove. The first protruding intercepting block cooperates with the second recessed groove, and the first recessed groove cooperates with the second protruding intercepting block to form the wavy mixing flow channel and the wavy mixing chamber.

2. The micro mixer according to claim 1, characterized in that The first cover plate surface is provided with three medium inlets; the three medium inlets are distributed at the branches and intersections of the diversion trough.

3. The micro mixer according to claim 2, characterized in that The micro-mixer further comprises a temperature sensor, which is arranged at the intersection of the two diversion channels and is used to measure the temperature of different media when they are mixed.

4. The micro mixer according to claim 1, characterized in that The first protruding intercepting block is configured as a long strip protrusion, and the cross-sectional size of the first protruding intercepting block gradually decreases along the direction away from the first mixing surface; the second protruding intercepting block is configured as a long strip protrusion, and the cross-sectional size of the second protruding intercepting block gradually decreases along the direction away from the second mixing surface.

5. The micro mixer according to claim 4, characterized in that The first mixing plate and the second mixing plate are detachably connected by screws and nuts. The first mixing plate and the second mixing plate are correspondingly provided with connecting threaded through holes that match the screws.

6. The micromixer according to any one of claims 1 to 3, characterized in that The micromixer further includes a guide pin.

7. The micromixer according to any one of claims 1 to 3, characterized in that The first mixing plate and the second mixing plate are made of one or more materials selected from the group consisting of stainless steel, glass, ceramics and polymer materials.

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