Microreactor

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a microreactor. The micro-reactor provided by the utility model comprises a plurality of layers of micro-reaction devices, the top layer of micro-reaction device is provided with a feed port, the bottom layer of micro-reaction device is provided with a discharge port, a reaction passage is connected between the feed port and the discharge port, and the reaction passage in each layer of micro-reaction device comprises a plurality of sections of ditch type reaction paths and an internal connection path; the reaction channel further comprises a detachable external connection section, the detachable external connection section is arranged between two adjacent layers of micro-reaction devices and is used for communicating the two adjacent layers of micro-reaction devices, and the number of layers of the micro-reaction devices is increased or decreased through connection and disconnection of the detachable external connection section; by arranging the multiple layers of micro-reaction devices which can be freely detached and connected and increasing or decreasing the number of the layers of the micro-reaction devices, the length of a reaction channel is controllable, so that the actual requirements of different chemical reactions are ensured, the reaction efficiency is improved, and the reaction time is controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field, concretely relates to a micro -reactor. BACKGROUND

[0002] In chemical reaction, micro -reactor has been widely used in synthetic drugs, catalytic reaction, liquid phase reaction etc. field, and its advantages include fast reaction rate, high reaction efficiency, small to reaction material etc. Micro -reactor is mainly a kind of miniaturized reaction equipment, and its reaction passage is usually micron to millimeter level. In traditional micro -reactor, straight line type reaction passage is usually used for reaction, but the reaction efficiency of straight line type reaction passage is low, and the reaction time is relatively long. The micro -reactor of curved channel is used to improve the reaction efficiency. However, the manufacturing process of curved channel is relatively complex, the machining precision is high, the manufacturing cost is higher, and the bending mode of reaction passage can directly affect the reaction efficiency of liquid in the passage, is influenced by the volume of micro -reactor, the length of existing reaction passage is fixedly arranged, and the reaction time is relatively fixed. When carrying out different chemical reactions, the length of reaction passage cannot be adjusted according to actual reaction needs to meet the reaction demand. When the reaction passage is relatively short, certain chemical reactions cannot be fully carried out. When the reaction passage is relatively long, the liquid that has completed the reaction cannot flow out of the reaction passage in time. SUMMARY

[0003] The technical problem to be solved by the utility model is that the reaction path of the existing reactor is single, and the length of the reaction passage cannot be adjusted according to actual reaction needs, thereby affecting the reaction efficiency and reaction time.

[0004] The technical solution of the utility model is as follows:

[0005] In order to solve the above technical problem, the utility model provides a micro -reactor, which comprises: a plurality of layers of micro -reaction devices arranged in layers from top to bottom, wherein one side of the top layer micro -reaction device is provided with a feed inlet, one side of the bottom layer micro -reaction device is provided with a discharge outlet, a reaction passage is connected between the feed inlet and the discharge outlet, and the reaction passage is sequentially connected with a plurality of layers of micro -reaction devices. The reaction passage in each layer of micro -reaction device includes a plurality of sections of ditch type reaction path and an internal connection path, and the plurality of sections of ditch type reaction path are connected through the internal connection path. The reaction passage further includes a detachable external connection section, the detachable external connection section is arranged between adjacent two layers of micro -reaction devices, and is used for connecting adjacent two layers of micro -reaction devices. The number of layers of micro -reaction devices is increased or reduced by detaching and connecting the detachable external connection section.

[0006] The further optimization of the utility model discloses, a plurality of the cylindrical micro - flow control piece is arranged in the micro - reaction device in sequence laterally, the internal connection path includes horizontal spiral formula passageway path, the channel type reaction path on the lateral adjacent cylindrical micro - flow control piece is communicated through the horizontal spiral formula passageway path, the flow of two adjacent channel type reaction paths is opposite through the setting of horizontal spiral formula passageway path, further increase the collision times of reaction raw materials in the reaction passageway, promote reaction efficiency.

[0007] The further optimization of the utility model discloses, a plurality of the cylindrical micro - flow control piece is arranged in the micro - reaction device in sequence laterally, the internal connection path includes horizontal spiral formula passageway path, the lateral adjacent cylindrical micro - flow control piece on the channel type reaction path is communicated through the horizontal spiral formula passageway path, the flow of two adjacent channel type reaction paths is opposite through the setting of horizontal spiral formula passageway path, further increase the collision times of reaction raw materials in the reaction passageway, promote reaction efficiency.

[0008] The further optimization of the utility model discloses, the both ends of detachable external connection section are detachably connected with the end and the starting end of reaction passageway in adjacent two layers micro - reaction device respectively, the end is the end of channel type reaction path on the cylindrical micro - flow control piece of the end of reaction passageway flow direction in the upper layer micro - reaction device, and the starting end is the starting end of channel type reaction path on the cylindrical micro - flow control piece of the starting end of reaction passageway flow direction in the lower layer micro - reaction device, and the both ends of detachable external connection section are detachably arranged, and more convenient for the quick disconnection of adjacent micro - reaction device, so that micro - reactor can enter corresponding working state more quickly.

[0009] The further optimization of the utility model discloses, the internal connection path further includes ring around type vertical passageway path, the cylindrical micro - flow control piece of two rows of upper and lower in each layer micro - reaction device is arranged in sequence laterally, and the channel type reaction path on the upper and lower cylindrical micro - flow control piece of lateral arrangement end is communicated through the ring around type vertical passageway path, and the double - layer convenient arrangement of cylindrical micro - flow control piece in micro - reaction device and the rotary connection between two layers not only increase the space utilization in each layer micro - reaction device, increase the reaction efficiency of single layer micro - reaction device, simultaneously, make the connecting position between each layer micro - reaction device all be located on the same side of the micro - reactor, so that the increase and reduction of micro - reaction device are more convenient.

[0010] The further optimization of the utility model discloses, the inlet is Y-shaped inlet, and the angle is favorable to the initial collision of two raw materials, and improves the reaction intensity of raw materials.

[0011] The further optimization of the utility model discloses, the inlet and outlet are arranged on the same side of the micro - reactor, convenient for observing the inlet and outlet simultaneously, and also can reduce the overall occupation space of micro - reactor.

[0012] The further optimization of the utility model discloses, the width of the ditch type reaction path is 1-3mm, the width range of the reaction path can make the mixing of raw materials more fully.

[0013] The further optimization of the utility model discloses, the ditch type reaction path and the inner wall are equipped with square type shunt structure and the side length is 5um to 100um, square type shunt structure can realize more times of collision in the process of liquid in ditch type reaction path forward flow, make the reaction more fully, increase the collision times and mixing degree of reaction liquid.

[0014] The further optimization of the utility model discloses, each layer microreactor still includes the shell, the shell is cuboid, and the top and bottom are equipped with the closable opening for the reaction passage, and the shell is still equipped with the fixing piece for making adjacent microreactor detachable link.

[0015] The utility model discloses the microreactor provided by the utility model discloses through setting multiple layers of the microreactor that can be freely connected, make the complex reaction passage in each layer microreactor be connected in series, through the increase or reduction of microreactor layer number, make the length of reaction passage controllable, satisfy the actual need of the chemical reaction of different raw materials, thereby improve reaction efficiency, control reaction time. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or prior art description, and obviously, the drawing in the following description is some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 The microreactor internal structure perspective schematic view provided for an embodiment of the utility model is shown in the drawing.

[0018] Figure 2 The microreactor internal structure perspective schematic view provided for an embodiment of the utility model is shown in the drawing.

[0019] Figure 3 The microreactor internal structure perspective schematic view provided for an embodiment of the utility model is shown in the drawing.

[0020] Figure 4 The microreactor internal structure perspective schematic view provided for an embodiment of the utility model is shown in the drawing.

[0021] Figure 5 The microreactor internal structure perspective schematic view provided for an embodiment of the utility model is shown in the drawing.

[0022] Figure 6 A cross-sectional structure schematic view of the cylindrical microfluidic control provided by one embodiment of the present application is provided.

[0023] Figure 7 A top view structure schematic view of the cylindrical microfluidic control provided by one embodiment of the present application is provided.

[0024] Figure 8 A spiral flow direction structure schematic view of the trench type reaction path provided by one embodiment of the present application is provided.

[0025] Figure 9 A structure schematic view of the microreactor located on the wind power pile foundation provided by one embodiment of the present application is provided.

[0026] Figure 10 An inner wall structure schematic view of the trench type reaction path provided by one embodiment of the present application is provided.

[0027] In the figure: 1, feed inlet; 2, discharge outlet; 3, trench type reaction path; 31, cylindrical microfluidic control; 32, block type shunt structure; 4, inner connection path; 41, horizontal spiral type passage path; 42, ring type vertical passage path; 5, detachable outer connection section; 6, shell; 61, closable opening; 62, fixing member; 7, top layer microreaction device; 8, bottom layer microreaction device. DETAILED DESCRIPTION

[0028] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below in conjunction with the accompanying drawings and specific embodiments, and the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The embodiment of the present application provides a microreactor, which is mainly used to solve the single reaction path direction of the existing microreactor, and the length of the reaction passage cannot be adjusted according to the actual reaction needs. When the chemical reaction needs a shorter reaction passage, the fixed and too long reaction passage makes the reaction time too long. When the reaction needs a longer reaction passage, the fixed length reaction passage cannot meet the needs, so that the reaction cannot be fully carried out and the reaction quality is affected.

[0030] As Figures 1 to 10To solve the above problems, the micro reactor provided by the embodiment comprises a plurality of layers of micro reaction devices arranged in layers, and the micro reaction devices are at least two layers, wherein one side of the top layer of micro reaction devices is provided with a feeding port 1, one side of the bottom layer of micro reaction devices is provided with a discharging port 2, and a reaction channel sequentially connecting the plurality of layers of micro reaction devices is connected between the feeding port 1 and the discharging port 2. Figure 2 The micro reaction device is four layers, in this way, the reactants can enter from the top layer of micro reaction devices 7, and the products can come out from the bottom layer of micro reaction devices 8 after a plurality of reactions. The reaction channel in each layer of micro reaction devices comprises a plurality of sections of channel type reaction paths 3 and an internal connection path 4, and the plurality of sections of channel type reaction paths 3 are connected through the internal connection path 4; through the channel type reaction path 3 and the internal connection path 4, the reaction channel can more flexibly adapt to different reaction processes, thereby improving the reaction efficiency of the micro reactor, and the reaction channel further comprises a detachable external connection section 5, which is arranged between adjacent two layers of micro reaction devices and used for connecting the adjacent two layers of micro reaction devices, and the number of layers of the micro reaction devices is increased or reduced by detaching or connecting the detachable external connection section 5, so that the length of the reaction channel of the micro reactor can be adjusted according to different reaction needs.

[0031] As shown in the figure, Figures 6 to 8 The micro reaction device comprises a plurality of vertically arranged cylindrical micro fluid control elements 31, and the channel type reaction path 3 is arranged in a spiral shape on the inner surface of the cylindrical micro fluid control element 31. The channel type reaction path 3 is machined on the surface of the micro fluid control element, which is usually made of transparent polymer (such as polydimethylsiloxane or glass material). These materials have good surface flatness and chemical stability, and different shapes and sizes of channels or passages can be engraved on the surface thereof through micro manufacturing technology, so as to realize different reaction channel structures. The spiral reaction path is formed on the cylindrical silicon sheet material by using micro-nano processing technology, and the spiral reaction path is arranged in a spiral shape. In this way, a plurality of sections of channel type reaction paths can be formed in the micro reactor, and they are sequentially connected through the internal connection path 4. The spiral arrangement of the channel type reaction path 3 enables the reaction raw materials to collide more times in the passage path, thereby improving the reaction efficiency and mixing performance.

[0032] As shown in the figure, Figure 1 , Figure 2 and Figure 4As shown, multiple cylindrical microfluidic control elements 31 are arranged horizontally in sequence within the microreactor, with equal distances between adjacent cylindrical microfluidic control elements 31. The internal path 4 includes a horizontal spiral path 41, through which the channel-like reaction paths 3 on horizontally adjacent cylindrical microfluidic control elements 31 are connected. The horizontal spiral path 41 causes the flow of adjacent two channel-like reaction paths 3 to be opposite, further increasing the number of collisions of reactants in the reaction path and improving reaction efficiency. This design can also reduce the residence time of reaction products in the reaction path and reduce the possibility of secondary reactions.

[0033] like Figure 1 , Figure 2 and Figure 9 As shown, the detachable external section 5 is a component connecting two adjacent microreactor layers. Its two ends connect to the end and start of the reaction pathway within the two adjacent microreactor layers, respectively, allowing fluid to flow smoothly between the reaction pathways of different layers. The end of the detachable external section 5 is ring-shaped and can be inserted into the channel-type reaction path 3 at the end of the cylindrical microfluidic control 31. This design allows for easy disassembly and installation, thereby enabling the increase or decrease of the number of microreactor layers and providing greater flexibility to adapt to different reaction needs. Specifically, the end refers to the end of the channel-type reaction path on the cylindrical microfluidic control 31 that connects to the end of the reaction pathway in the upper microreactor, while the start refers to the start of the channel-type reaction path on the cylindrical microfluidic control 31 that connects to the start of the reaction pathway in the lower microreactor. The detachable external section 5 allows for convenient and rapid connection and disconnection of adjacent microreactor layers, enabling the increase or decrease of the number of microreactor layers. The advantage of this design is that the number of layers in the microreactor can be easily changed to adapt to different reaction requirements when different scale reaction experiments are needed, thereby improving reaction efficiency and flexibility.

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, the inner path 4 also includes a surrounding vertical passage path 42. Each layer of the microreactor is provided with two rows of cylindrical microfluidic control units 31 arranged horizontally in sequence. The ends of the channel-type reaction paths 3 on the two horizontally arranged cylindrical microfluidic control units 31 in the same layer are connected through the surrounding vertical passage path 42. Through the double-layer arrangement of the cylindrical microfluidic control units 31 in the microreactor and the rotatable connection between the two layers, not only is the space utilization in each layer of the microreactor increased and the reaction efficiency of a single layer of the microreactor increased, but also the connection position between the two microreactors in each layer is located on the same side of the microreactor, which facilitates the addition and reduction of microreactors.

[0035] likeFigure 3 As shown, the feed inlet 1 is a Y-shaped feed inlet 1, which is located on one side of the top layer micro reaction device 7, and the size and opening angle of the feed inlet can be adjusted according to the reaction requirements to meet the requirements of different reactants. Its special shape can make the two raw materials mix better, thereby improving the reaction efficiency and reaction rate. At the same time, since the feed inlet 1 is located at the top of the micro reactor, it is also beneficial to the flow of the reaction material and the collection of the reaction product, and it can also be provided with a further booster component to further increase the original liquid to ensure the initial flow rate of the original liquid.

[0036] Further, the feed inlet 1 and the discharge outlet 2 are arranged on the same side of the micro reactor, and the feed inlet 1 and the discharge outlet 2 are arranged on the same side of the micro reactor, which not only facilitates operation and observation, but also makes the micro reactor more compact and saves space. In addition, the same side arrangement also helps to reduce the residue and cross contamination of the reaction material, thereby ensuring the purity and accuracy of the reaction.

[0037] Further, the width of the trench type reaction path 3 is 1 to 3 mm, and the width range of the reaction path can make the mixing of raw materials more sufficient. In addition, the reaction path of the micro reaction device adopts micro fluidic technology, which can improve the controllability and stability of the reaction by accurately controlling the flow rate and reaction temperature of the reactants, and further improve the reaction efficiency and product purity.

[0038] As shown in Figure 10 The inner wall of the trench type reaction path 3 is provided with a square type flow dividing structure 32 with a side length of 5 to 100 microns, which is composed of square-shaped micro columns with a length of 5 to 100 microns, a width of 5 to 100 microns, and a height of 5 to 100 microns from inside to outside. The column cross section is inverted triangular, and a predetermined distance is left between adjacent square-shaped micro columns, so that the liquid can collide and mix more times when passing through the flow dividing structure, increasing the collision times and mixing degree of the reaction liquid.

[0039] As shown in Figures 1 to 3 As shown in

[0040] In use, the number of layers of the micro-reaction device is adjusted according to different reaction requirements, the detachable external segment 5 is used to connect the multiple layers of the micro-reaction device in sequence, the tightness of the connection points is checked, then the multiple layers of the micro-reaction device are fixed to each other by using the fixing member 62, and the assembly of the micro-reaction device is completed. The required raw material is introduced into the micro-reactor through the Y-shaped feeding port 1 under a certain pressure, the raw material sequentially passes through the multiple segments of the channel type reaction path 3, and the multiple collisions and mixing of the reaction liquid are realized by the square type shunt structure 32 on the inner wall of the channel type reaction path 3, so that the reaction is more sufficient. The product after the reaction is discharged from the micro-reactor through the discharge port 2. The miniaturization and compact design of the micro-reactor are realized, the reaction efficiency of the single layer of the micro-reaction device is increased, and the space utilization rate of the micro-reactor is improved.

[0041] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A microreactor, characterized in that, include: A multi-layered microreactor is configured with upper and lower layers. The top layer of the microreactor has an inlet on one side, and the bottom layer has an outlet on one side. A reaction path connects the inlet and outlet, sequentially linking the multiple layers of the microreactor. Each layer of the microreactor includes multiple channel-type reaction paths and internal connecting paths, with the channel-type reaction paths connected to each other via the internal connecting paths. The reaction path also includes a detachable external section, which is located between two adjacent layers of the microreactor to connect them. The number of layers of the microreactor can be increased or decreased by detaching or reconnecting the detachable external section.

2. The microreactor according to claim 1, characterized in that, The microreactor is equipped with multiple vertically arranged cylindrical microfluidic control units, and the channel-type reaction path is spirally arranged on the inner surface of the cylindrical microfluidic control units.

3. The microreactor according to claim 2, characterized in that, Multiple cylindrical microfluidic controls are arranged laterally in sequence within the microreactor. The internal path includes a lateral spiral path, and the trench-like reaction paths on laterally adjacent cylindrical microfluidic controls are connected through the lateral spiral path.

4. The microreactor according to claim 3, characterized in that, The two ends of the detachable external section are respectively detachably connected to the end and the beginning of the reaction path in the two adjacent layers of microreactors. The end is the end of the channel-type reaction path on the cylindrical microfluidic control on the end of the reaction path in the upper layer of microreactor, and the beginning is the beginning of the channel-type reaction path on the cylindrical microfluidic control on the beginning of the reaction path in the lower layer of microreactor.

5. The microreactor according to claim 4, characterized in that, The internal path also includes a surrounding vertical pathway. Each layer of the microreactor is provided with two rows of cylindrical microfluidic controls arranged horizontally in sequence, and the channel-like reaction paths on the upper and lower cylindrical microfluidic controls at the ends of the horizontal arrangement are connected through the surrounding vertical pathway.

6. The microreactor according to claim 1, characterized in that, The feed inlet is a Y-shaped feed inlet.

7. The microreactor according to claim 1, characterized in that, The feed inlet and discharge outlet are located on the same side of the microreactor.

8. The microreactor according to claim 1, characterized in that, The width of the trench-type reaction path is 1-3 mm.

9. The microreactor according to claim 8, characterized in that, The inner wall of the trench-type reaction path is provided with a block-shaped diversion structure with a side length of square.

10. The microreactor according to any one of claims 1 to 8, characterized in that, Each layer of the microreactor also includes a housing, which is rectangular in shape and has closable openings at the top and bottom for the passage of reaction pathways. The housing is also provided with fasteners for detachably connecting adjacent microreactors. The reaction pathways in each layer of the microreactor are all located within the housing.

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