KR100740771B1 - Micromixer - Google Patents

Abstract

The present invention relates to a micro mixer, in which the upper plate (2), the lower plate (3) and the binding port (4) are combined, the left, right and upper inflow nozzles ( 5), (6), (7) are mounted and the screw coupling holes (9) are formed, and at the bottom of the other side, left, right, upper grooves (11 '), (12'), (13 ') and mixing grooves ( 14 '), and the packing grooves 15' are formed to the outer periphery, and the lower plate 3 corresponds to the upper plate 2 on the left, right, upper grooves 11, 12, 12, (13) and the mixing groove (14), and the packing grooves (15) are formed in each of the outer periphery, and the screw coupling hole (16), the binding hole (4) is characterized in that the outlet nozzle (8) It relates to a micro mixer.

When the micromixer of the present invention reacts and supplies two or more fluids to each other, the top plate of the fluid stock solution introduced through the left, right, and top inlet nozzles 5, 6, and 7 may have a large difference in mutual flow rate. Left, right, upper grooves (11), (11 '), (12), (12'), (13), (13 ') and mixing grooves (14), (14) of (2) and lower plate (3) ') Can be sufficiently mixed along the mixing flow path formed by the combination and supplied to the outlet nozzle 8, thereby increasing the mixing efficiency and eventually improving the reaction yield.

Micro, mixer, fluid, reaction, yield

Description

Micro Mixer

1 is a perspective view of a micromixer of the present invention

Figure 2 is a bottom perspective view of the micro mixer of the present invention

Figure 3 is a bottom view of the other side of the top plate of the micromixer of the present invention

Figure 4 is a perspective view of the graphite packing mounted to the micro mixer of the present invention

5 is an explanatory diagram of a main part of the micromixer of the present invention;

Figure 6 is a perspective view of a flow control module mounted to the micro mixer of the present invention

* Explanation of symbols for the main parts of the drawings

1. Micro mixer 2. Top plate 3. Bottom plate

4. Binding hole 5. Left inlet nozzle 6. Right inlet nozzle

7. Top inlet nozzle 8. Outlet nozzle 9.10.16 Screw joint

11.11 'left groove 12.12' right groove 13.13 'upper groove

14. Mixing groove 15. Packing groove 17. Left inlet

18. Right inlet 19. Upper inlet 20 Graphite packing

21. Flow control module 22. Module groove

The present invention relates to a micro mixer, and more particularly, to a micro mixer in which a top plate, a bottom plate, and a binding hole are combined, the left, right, and top inlet nozzles are mounted on one side of the top plate, and a screw coupler is formed. On the other bottom, left, right, upper grooves and mixing grooves, and the packing grooves are formed in the outer periphery, respectively, the lower plate corresponding to the upper plate, the left, right, upper grooves and mixing grooves, and to the outside of one side It relates to a micro mixer, each of which is formed with a packing groove and is provided with a screw fitting, and wherein the binding hole is equipped with an outlet nozzle.

When the micromixer of the present invention reacts and supplies two or more fluids, the upper, lower, left, right, upper recesses and mixing of the upper and lower plates may be obtained even if the fluid stock solution flowing through the left, right and upper inlet nozzles has a large difference in mutual flow rate. The grooves can be sufficiently mixed along the mixing flow path formed by the concavity to be supplied to the outlet nozzle, thereby increasing the mixing efficiency and ultimately improving the reaction yield.

In general, in the chemical reaction, the conventional micromixer was the most basic form of mixing and sending two kinds of solutions. However, in the chemical reaction, the two mixed liquids must be mixed at a predetermined equivalent weight, and the optimum concentration of each solution is determined. Therefore, the flow rates of the two fluids are determined accordingly. At this time, the difference in flow velocity between the two fluids may be 10 to 100 times or more, and the efficiency of the mixer is reduced.

In conventional mixers, two fluids are introduced at the same flow rate and mixed in a mixing channel. For example, in the case of the lithiation reaction (Lithiation reaction) adopted as a model reaction in the embodiment of the present invention, butyl lithium which enters at a slow flow rate of several tens of PPM into THF, which is a solvent introduced at a high flow rate, in particular The long-term operation is prevented by slowly blocking the inlet coming out at a slow flow rate with solid hydroxide of lithium hydroxide. In order to solve this problem, it is necessary to improve the inlet structure of the reaction mixer.

Therefore, the present invention has been improved in this regard, in the micro mixer which combines the upper plate, the lower plate and the binding port, the left, right and upper inlet nozzles are mounted on the upper plate and left, right, By forming the upper groove and the mixing groove, even if two or more fluids are introduced at different flow rates to provide a micro-mixer that can be sufficiently mixed along the flow path formed by the combination to be supplied to the outlet nozzle.

The micro mixer of the present invention is a micro mixer in which the upper plate, the lower plate, and the binding sphere are combined. The left, right and upper inlet nozzles are mounted on one side of the upper plate and form a screw coupler. The upper grooves and the mixing grooves, and each of the packing grooves to form the outer periphery, the lower plate corresponding to the upper plate, the left, right, upper grooves and mixing grooves, and each of the packing grooves formed on the upper side of each side and screw It is characterized in that the coupling sphere, the binding sphere is equipped with an outlet nozzle.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view of a micro mixer of the present invention, Figure 2 is a bottom plate separated perspective view.

In the figure, it can be seen that the micro mixer 1 of the present invention is an integrated configuration by combining the upper plate 2, the lower plate 3, and the binding port 4 as a whole.

Specifically, in the micromixer formed by combining the upper plate 2, the lower plate 3, and the binding port 4, the left, right and upper inlet nozzles 5, 6 on the upper surface of one side of the upper plate 2 (7) and (7) are attached to the periphery and the screw coupler (9) is formed.

In addition, the lower plate 3 corresponding to each of the left, right, upper grooves 11, 12, 13 and the mixing groove 14 and the packing grooves 15 are formed on each side of the upper surface, respectively. And a screw fitting 16.

Here, the shapes of the left, right, and upper grooves 11, 12, and 13 are similar to the corresponding grooves in FIG. 3, which will be described later, and the left, right, grooves 11, 12 are V. FIG. It has a shape of a child and is joined to the upper groove 13 at one point, and gradually narrows toward the center portion (the point of joining) from the widest end, and the mixing groove 14 has a gear shape. Is connected.

In addition, the flow rate control module 21 may be mounted at a point just before the upper groove 13 meets the left and right grooves 11 and 12. (See FIGS. 5 and 6 to be described later.)

In the binding hole 4 which integrally integrates the upper plate 2 and the lower plate 3, a screw coupler 10 is formed, and the upper plate 2 and the lower plate 3 are connected through a coupling tool such as a conventional screw. Can be combined and one side is equipped with an outlet nozzle (8).

The outlet nozzle 8 is connected to a flow path formed by combining the upper plate 2 and the lower plate 3.

3 is a bottom view of the other side of the top plate 2 of the micromixer 1 of the present invention, and FIG. 4 is a perspective view of the graphite packing 20 mounted to the micromixer 1 of the present invention.

In the figure, the bottom surface (bottom surface) of the top plate 2 of the present invention has left, right, upper grooves 11 ', 12', 13 'and mixing grooves 14', and their outer edges. Each of the packing grooves 15 'is formed.

In addition, the left and right grooves 11 'and 12' have a V-shape and are joined to the upper groove 13 'at one point. ), The mixing groove 14 is connected in a gear shape.

The lower end of the upper groove (13 ') is provided with a module groove (22) for mounting the flow control module (21).

The packing groove 15 'has a substantially annular shape, in which graphite packing 20 is fitted.

In addition, the left, right, upper inlets 17, 18, and 19 are provided at the wide end portions of the left, right, upper grooves 11 ', 12', and 13 '. It is formed so as to communicate with the left, right and upper inflow nozzles (5), (6), (7) mounted on the other side.

Therefore, when the upper plate (2), the lower plate (3) and the binding port (4) of the present invention is integrated into a coupling tool such as a screw, the screw coupling holes (9), (10), (16) , Bonding and adhesion are increased by the graphite packing 20, and the left and right sides of the upper plate 2 and the lower plate 3 in contact with the upper plate 11, upper grooves 11, 11 ′, 12, and 12 ′ , (13), (13 ') and the mixing groove (14, 14') is combined to form a flow path that communicates with the outlet nozzle (8).

Fig. 5 is an explanatory view of the inner main part of the micro mixer 1 of the present invention incorporating and coupling in this way, and includes left, right, upper grooves 11, 11 ', 12, 12', and 13; ), (13 ') and mixing grooves (14, 14') are combined, but gradually narrowed toward the center portion (the point of joining) from the widest end so that one gear of mixing gear (14) Is connected to.

Here, the flow rate control module 21 is mounted at a point just before the upper grooves 13 and 13 'meet the left and right grooves 11, 11', 12, and 12 '. Can be.

Fig. 6 is a perspective view of the flow rate regulation module 21 mounted on the micro mixer 1 of the present invention, and has a wide inlet and a narrow outlet.

On the other hand, the micromixer 1 of the present invention and the material of each component mounted thereto is not particularly limited, such as steel, stainless steel, but stainless steel is most preferred.

Hereinafter, the effect | action of the micro mixer 1 of this invention of the said structure is demonstrated.

As described above, in the micro mixer 1 of the present invention, the upper plate 2, the lower plate 3, and the binding port 4 are integrally combined to form a flow path of a predetermined fluid therein.

That is, when the upper plate (2), the lower plate (3) and the binding port (4) of the present invention is integrated into a coupling tool such as a screw, the screw coupling holes (9), (10), (16) , Left, right, upper grooves 11, 11 ', 12, 12', 13, 13 'and mixing groove 14 of the upper plate 2 and the lower plate 3 in contact with the upper plate 2; ) And 14 'are combined to form a flow path, and the flow path communicates with the outlet nozzle 8.

Accordingly, the fluid flowing from the outside is left and right through the left, right, and upper inlet nozzles 5, 6, and 7 and the left, right, upper inlets 17, 18, and 19 in communication therewith. When the right and upper grooves 11, 11 ', 12', 12 ', 13' and 13 'are introduced into the mixing groove 14, the flow velocity increases along the narrower flow path. Guided to 14 ', the fluid flowing through the upper inlet 19 is further accelerated by the flow control module 21 mounted at the ends of the upper grooves 13, 13'.

In more detail, the flow of the fluid is described first. For the fluid having a high flow rate, the flow is divided into two left and right sides using a union T fitting, and the same flow is always performed in both directions as shown in FIG. 5. Therefore, both sides of the injection port can maintain the same flow rate at all times, and there is an advantage that the optimum flow rate can be injected into the mixing channel under any reaction conditions. In addition, the fluid flowing at a slow flow rate is injected into the path of the upper inflow nozzle 7-the upper inlet 19-the upper recess 13, 13 'and passes through the flow control module 21, thereby changing to a high flow rate.

Thus, in the present invention, the problem caused by the inlet connected to the mixing channel was secured, and the solution did not flow due to the vortex while the input solution did not flow directly into the mixing channel.

In addition, the central input unit is designed to increase the linear velocity of the slow flow rate solution, that is, the lower the flow rate, the faster the linear velocity can be achieved by using a smaller outlet cross-sectional area of the flow control module. It is designed to be located at the same distance in a straight line distance from the fine channel where the mixing is performed.

The present invention will be described in more detail with reference to the following examples.

Example

First, the lithiation reaction was carried out using a conventional microreactor in circulation.

In the case of the conventional microreactor, 2-bromonaphthalene (2-) dissolved in n-butyl lithium (1.6 ml / min) and tetrahydrofuran saturated in Hexane solution When bromonaphthalene (25 ml / min) was reacted, the yield was 90%, but the flow rate was large, which distorted the flow of the inlet. As a result, by-product LiOH gradually precipitated as a solid, which blocked the inlet and the mixer in water. It was impossible.

At this time, 2-bromonaphthalene is dissolved in tetrahydrofuran in a saturated state in order to decrease the flow rate difference, so the concentration cannot be increased. Therefore, the yield was 70 when one side was diluted to adjust the flow rate of n-butyllithium. Fell to percent.

However, when the micromixer (1) of the present invention was used instead of the conventional microreactor, a yield of 99% or more was obtained without clogging.

That is, by splitting 2-bromonaphthalene through the left and right inlet nozzles 5 and 6 of the micromixer 1 of the present invention having an improved inlet structure, the inlet structure is introduced from the upper inlet nozzle 7. This is because n-butyllithium (relatively slow flow rate) passes through the flow regulating module 21 to change to a high flow rate and is sufficiently mixed with 2-bromonaphthalene in the mixing grooves 14 and 14 '.

According to the present invention, when two or more fluids are reacted and mixed, the left, right, and upper and lower grooves and the mixing grooves of the upper and lower plates are separated even if the fluid stock solution flowing through the left, right and upper inlet nozzles has a large difference in mutual flow rate. It can be sufficiently mixed along the mixing flow path formed by the combination to be supplied to the outlet nozzle can increase the mixing efficiency and eventually improve the reaction yield.

Although only described in detail with respect to the described embodiments of the present invention, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, it is natural that such variations and modifications belong to the appended claims. .

Claims (2)

In the micro mixer which combines the upper board 2, the lower board 3, and the binding port 4, Left, right and upper inlet nozzles (5), (6), (7) are mounted on one side of the upper plate (2) and the screw coupling holes (9) are formed, and on the other bottom, left, right and upper grooves ( 11 '), 12', 13 'and mixing grooves 14', and the packing grooves 15 'are formed to the outside thereof, respectively. The lower plate 3 has left, right, upper grooves 11, 12, 13 and mixing grooves 14 on one side of the upper surface corresponding to the upper plate 2, and the packing grooves 15 to the outside thereof. Each with a threaded engagement member (16), Micro-mixer, characterized in that the outlet 4 is equipped with an outlet nozzle (8) The method of claim 1, Micro mixer, characterized in that for mounting the flow rate control module 21 at the lower end of the upper groove (13, 13)

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