Micro-reaction channel device

Abstract

The utility model provides a micro-reaction channel device, including feed control unit, mixing unit and discharge control unit, feed control unit includes mixing feed pipe, mixing unit includes heart-shaped cavity, and first inflow channel, second inflow channel, first outflow channel and second outflow channel that are communicated with heart-shaped cavity, discharge control unit includes discharge control unit. The discharging control unit comprises a discharging header pipe, reactants enter the heart-shaped cavity from the mixed feeding pipe through the first inflow channel and the second inflow channel respectively, are mixed in the heart-shaped cavity, flow out of the heart-shaped cavity through the first outflow channel and the second outflow channel respectively, and are discharged through the discharging header pipe after being circulated for multiple times. According to the micro-reaction channel device disclosed by the utility model, the heart-shaped cavity is arranged at the junction of the double-layer micro-reaction channel, so that the mixing effect at the junction is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to microreaction channel technical field more specifically, relate to a kind of microreaction channel device. BACKGROUND

[0002] The market demand of methyltrisbutoxime silyl and vinyltrisbutoxime silyl is rapidly growing at present, in order to improve the product purity and stability of silyl prepared by reaction of butoxime, methyltrichlorosilane, vinyltrichlorosilane and other chlorosilanes, micro-flow reaction device can be used to accurately control the reaction process. Common microreaction channel design has baffle, curved flow channel, backflow device, etc. The most commonly used baffle can change the flow direction of fluid, increase the frequency of contact and collision, so as to promote mass transfer, but the flow resistance of such flow channel is large. The curved flow channel can change the velocity direction of fluid, form secondary flow, so as to strengthen mixing, and its structure is relatively simple and convenient to process, but the mixing effect is relatively poor compared with baffle.

[0003] In recent years, some three-dimensional split and recombination microchannels have appeared, which use double-layer design to divide the main flow channel into multiple sub-flow channels, continuously split and recombine the fluid through repeated mixing units, change the flow direction of fluid multiple times, so as to enhance the fluid mixing effect, but the mixing effect at the intersection of existing three-dimensional split and recombination microchannels needs to be improved, and the structure design at the intersection is ignored.

[0004] The above problems need to be solved, so the utility model provides a kind of microreaction channel device for solving the above problems. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a microreaction channel device capable of improving mixing effect.

[0006] The utility model solves the technical problem by adopting the following technical scheme: a microreaction channel device includes a feed control unit, a mixing unit arranged at the rear end of the feed control unit, and a discharge control unit arranged at the rear end of the mixing unit. The feed control unit includes a mixing feed pipe. The mixing unit includes a first mixing part and a second mixing part. The first mixing part includes a heart-shaped cavity. A first inflow channel is connected to the upper layer of the right front end of the heart-shaped cavity. A second inflow channel is connected to the lower layer of the left front end of the heart-shaped cavity. A first outflow channel is connected to the upper layer of the left rear end of the heart-shaped cavity. A second outflow channel is connected to the lower layer of the right rear end of the heart-shaped cavity. The discharge control unit includes a discharge main pipe. The reactants enter the first inflow channel and the second inflow channel from the mixing feed pipe, respectively, and then converge into the heart-shaped cavity for mixing. Finally, the reactants flow out of the first outflow channel and the second outflow channel to the second mixing part, respectively, and are discharged from the discharge main pipe after multiple cycles.

[0007] Preferably, the feed control unit is connected with a plurality of the mixing units in parallel.

[0008] Preferably, the mixing unit further comprises a third mixing part, the second mixing part and the first mixing part are mirror images with respect to the vertical plane of the central axis of the heart-shaped cavity, the third mixing part has the same structure as the first mixing part, and a plurality of the first mixing parts, the second mixing parts and the third mixing parts are connected in series on the mixing unit.

[0009] Preferably, the feed control unit comprises a feed pipe and a valve arranged on the feed pipe, the feed pipe comprises a first feed pipe, a second feed pipe, a distribution pipe and a mixed feed pipe, the first feed pipe and the second feed pipe are used for feeding, the reactants enter the first feed pipe and the second feed pipe, are mixed in the distribution pipe and are distributed to the mixing unit by the mixed feed pipe.

[0010] Preferably, the valve comprises a first valve, a second valve and a control valve, the first valve is arranged on the first feed pipe, the second valve is arranged on the second feed pipe, and the control valve is arranged on the distribution pipe.

[0011] Preferably, the discharge control unit further comprises a discharge valve and a discharge pipe, the discharge valve is arranged on the discharge pipe, and after the reactants are mixed in the mixing unit and are combined into the discharge main pipe, the reactants enter the next stage.

[0012] Preferably, the micro-reaction channel device further comprises a heat preservation tank, the heat preservation tank is provided with heat preservation medium, and medium inlets and medium outlets are arranged on both sides of the heat preservation tank.

[0013] Preferably, the heat preservation medium is water or oil.

[0014] Preferably, the medium inlets and the medium outlets are in communication, and a temperature control device is arranged between the medium inlets and the medium outlets, when the temperature of the heat preservation medium is too high or too low, the temperature control device performs heat exchange treatment on the heat preservation medium flowing out of the medium outlets and then the heat preservation medium flows into the heat preservation tank through the medium inlets.

[0015] The utility model discloses a beneficial effect is: reactant by mixed feed pipe respectively enters first inflow channel, second inflow channel, then confluence enters heart cavity and mixes, finally respectively by first outflow channel, second outflow channel flows to the second mixing portion, after circulating multiple times, by the discharge header, the confluence of flow path direction is realized in heart cavity inside, and the next heart cavity in series is entered, and the change and confluence of flow path direction are repeated here, and the mixing intensity of micro - flow reaction has been improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model makes further explanation from the following combined with the drawing and embodiment.

[0017] In the drawing: Figure 1 It is the structure diagram of the utility model micro - reaction channel device in the heat preservation groove inside;

[0018] Figure 2 It is the structure diagram of the utility model micro - reaction channel device;

[0019] Figure 3 It is the plan view of the utility model micro - reaction channel device;

[0020] Figure 4 It is the partial section view of the utility model micro - reaction channel device.

[0021] 1, micro - reaction channel device;10, feed control unit;11, feed pipe;111, first feed pipe;112, second feed pipe;113, distribution pipe;114, mixed feed pipe;12, valve;121, first valve;122, second valve;123, control valve;20, mixing unit;21, first mixing portion;211, heart cavity;212, first inflow channel;213, second inflow channel;214, first outflow channel;215, second outflow channel;22, second mixing portion;23, third mixing portion;30, discharge control unit;31, discharge valve;32, discharge pipe;33, discharge header;40, heat preservation groove;41, heat preservation medium;42, medium inlet;43, medium outlet. DETAILED DESCRIPTION

[0022] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clearly, now combining the drawing to the utility model makes detailed explanation. This drawing is the simplified schematic diagram, just with the way of illustration to illustrate the basic of the utility model, therefore it just shows the constitution related with the utility model. Obviously, the described embodiment is the part embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making the creative labor belong to the scope of the utility model protection.

[0023] As Figure 1 The utility model provides a kind of micro-reaction channel device 1 including feed control unit 10, the mixing unit 20 being equipped in the rear end of feed control unit 10, the discharge control unit 30 being equipped in the rear end of mixing unit 20 and heat preservation groove 40, and micro-reaction channel device 1 is equipped in heat preservation groove 40.

[0024] As Figure 2 The feed control unit 10 includes feed pipe 11 and valve 12 arranged on feed pipe 11, and feed pipe 11 includes first feed pipe 111, second feed pipe 112, distribution pipe 113 and mixed feed pipe 114.

[0025] Valve 12 includes first valve 121, second valve 122 and control valve 123, first valve 121 is arranged on first feed pipe 111, second valve 122 is arranged on second feed pipe 112, and control valve 123 is arranged on distribution pipe 113.

[0026] As Figures 2-4 The mixing unit 20 includes first mixing part 21, second mixing part 22 and third mixing part 23.

[0027] The first mixing part 21 includes heart-shaped cavity 211, and first inflow channel 212 is communicated with the upper layer of the right front end of heart-shaped cavity 211, second inflow channel 213 is communicated with the lower layer of the left front end of heart-shaped cavity 211, first outflow channel 214 is communicated with the upper layer of the left rear end of heart-shaped cavity 211, and second outflow channel 215 is communicated with the lower layer of the right rear end of heart-shaped cavity 211.

[0028] The reactants enter heart-shaped cavity 211 through first inflow channel 212 and second inflow channel 213 on both sides of heart-shaped cavity 211, the original flow path direction is disturbed, and the fluid can realize out-of-order mixing in heart-shaped cavity 211, thereby improving the mixing strength of micro-flow reaction.

[0029] The discharge control unit 30 also includes discharge valve 31 and discharge pipe 32, and discharge valve 31 is arranged on discharge pipe 32.

[0030] The micro-reaction channel device 1 further comprises a heat preservation tank 40, the heat preservation tank 40 is internally provided with heat preservation medium 41, the heat preservation tank 40 is provided with a medium inlet 42 and a medium outlet 43 on two sides, the heat preservation medium 41 enters from the medium inlet 42, the heat preservation medium 41 is discharged from the medium outlet 43, and the heat preservation medium 41 submerges the micro-reaction channel device 1.

[0031] The heat preservation medium 41 is water or oil.

[0032] The temperature control device is arranged between the medium inlet 42 and the medium outlet 43, and when the temperature of the heat preservation medium 41 is too high or too low, the heat preservation medium 41 flowing out of the medium outlet 43 is subjected to heat exchange treatment and then flows into the heat preservation tank 40 from the medium inlet 42.

[0033] The temperature control device is arranged between the medium inlet 42 and the medium outlet 43, and when the temperature of the heat preservation medium 41 is too high or too low, the heat preservation medium 41 flowing out of the medium outlet 43 is subjected to heat exchange treatment and then flows into the heat preservation tank 40 from the medium inlet 42.

[0034] The working principle of the micro-reaction channel device 1 is as follows:

[0035] The reactants enter the first inflow channel 212 and the second inflow channel 213 from the mixed feed pipe 114 respectively, are mixed in the heart-shaped cavity 211, the original flow path direction is disturbed, the fluid can realize disorder mixing in the heart-shaped cavity 211, the mixing strength of micro-flow reaction is improved, finally flows out to the second mixing part 22 from the first outflow channel 214 and the second outflow channel 215, and is discharged from the discharge main pipe 33 after circulation for multiple times.

[0036] The micro-reaction channel device 1 has the following beneficial effects:

[0037] 1. The dispersed fluid is converged at the inlet of the heart-shaped cavity 211, the flow path is dispersed at the outlet of the heart-shaped cavity 211, and then enters the next heart-shaped cavity 211 in series, and the change of the flow path direction and convergence are repeated, so that the mixing strength of micro-flow reaction is improved.

[0038] 2. The mixing unit 20 is composed of tangent semicircular edges, the curved flow channel can continuously stretch, shear, fold and collide the fluid, vortexes are formed at the intersection of the upper and lower flow channels, the turbulence degree of the fluid is greatly enhanced, the mixing effect of the micro-reaction channel device 1 can be significantly improved while ensuring small flow resistance.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0040] It should be noted that the terms "first", "second", and the like, as used in the specification and claims herein, are intended to modify a particular aspect as distinguished from other aspects, but do not imply either a sequential ordering or a particular precedence in use. It is to be understood that such terms are used merely for the sake of description and are in no way intended to limit the scope of the present application.

[0041] In light of the above, those skilled in the art will appreciate that the conception upon which this disclosure is based can readily be utilized as the basis for the making of other embodiments of the present application as follows. It will be understood that obvious modifications and variations are possible in the absence of a specific embodiment, including, but not limited to, permutations of elements: substitutions of elements from different series or groups for those shown: and the utilization of materials other than those described. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A microreactor channel device, characterized by: The micro-reaction channel device (1) comprises a feed control unit (10), a mixing unit (20) arranged at the rear end of the feed control unit (10), and a discharge control unit (30) arranged at the rear end of the mixing unit (20), the feed control unit (10) comprises a mixed feed pipe (114), the mixing unit (20) comprises a first mixing part (21) and a second mixing part (22), the first mixing part (21) comprises a heart-shaped cavity (211), the upper layer of the right front end of the heart-shaped cavity (211) is communicated with a first inflow channel (212), the lower layer of the left front end of the heart-shaped cavity (211) is communicated with a second inflow channel (213), the upper layer of the left rear end of the heart-shaped cavity (211) is communicated with a first outflow channel (214), and the lower layer of the right rear end of the heart-shaped cavity (211) is communicated with a second outflow channel (215), the discharge control unit (30) comprises a discharge main pipe (33), and the reactants enter the first inflow channel (212) and the second inflow channel (213) from the mixed feed pipe (114) respectively, are mixed in the heart-shaped cavity (211), and then flow out to the second mixing part (22) from the first outflow channel (214) and the second outflow channel (215) respectively, and are discharged from the discharge main pipe (33) after multiple cycles.

2. The microreactor channel device of claim 1, wherein: A plurality of mixing units (20) are connected to the rear end of the feed control unit (10), and the plurality of mixing units (20) are arranged in parallel.

3. The microreactor channel device of claim 1, wherein: The mixing unit (20) further comprises a third mixing part (23), the structure of the second mixing part (22) and the first mixing part (21) is a mirror image about the vertical surface of the central axis of the heart-shaped cavity (211), the third mixing part (23) has the same structure as the first mixing part (21), and a plurality of first mixing parts (21), second mixing parts (22) and third mixing parts (23) are arranged in series on the mixing unit (20).

4. The microreactor channel device of claim 1, wherein: The feed control unit (10) comprises a feed pipe (11) and a valve (12) arranged on the feed pipe (11), the feed pipe (11) comprises a first feed pipe (111), a second feed pipe (112), a distribution pipe (113) and the mixed feed pipe (114), the first feed pipe (111) and the second feed pipe (112) are used for feeding, the reactants enter the first feed pipe (111) and the second feed pipe (112), are mixed in the distribution pipe (113), and are distributed to the mixing unit (20) by the mixed feed pipe (114).

5. The microreactor channel device of claim 4, wherein: The valve (12) comprises a first valve (121), a second valve (122) and a control valve (123), the first valve (121) is arranged on the first feed pipe (111), the second valve (122) is arranged on the second feed pipe (112), and the control valve (123) is arranged on the distribution pipe (113).

6. The microreactor channel device of claim 1, wherein: The discharge control unit (30) further comprises a discharge valve (31) and a discharge pipe (32), the discharge valve (31) is arranged on the discharge pipe (32), after the reactants are mixed in the mixing unit (20) and are converged to the discharge main pipe (33), the reactants enter the next stage.

7. The microreactor channel device of claim 1, wherein: The micro-reaction channel device (1) further comprises a heat preservation tank (40), the heat preservation tank (40) is provided with heat preservation medium (41), the heat preservation tank (40) is provided with medium inlet (42) and medium outlet (43) on both sides, the heat preservation medium (41) enters from the medium inlet (42), the heat preservation medium (41) is discharged from the medium outlet (43), and the heat preservation medium (41) submerges the micro-reaction channel device (1).

8. The microreactor channel device of claim 7, wherein: The heat preservation medium (41) is water or oil.

9. The microreactor channel device of claim 7, wherein: The medium inlet (42) and the medium outlet (43) are communicated, and a temperature control device is arranged between the medium inlet (42) and the medium outlet (43), when the temperature of the heat preservation medium (41) is too high or too low, the heat preservation medium (41) flowing out of the medium outlet (43) is subjected to heat exchange treatment and then flows into the heat preservation tank (40) through the medium inlet (42).

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