CN210496346U - Layered mixing micro-reactor - Google Patents
Layered mixing micro-reactor Download PDFInfo
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- CN210496346U CN210496346U CN201921240675.8U CN201921240675U CN210496346U CN 210496346 U CN210496346 U CN 210496346U CN 201921240675 U CN201921240675 U CN 201921240675U CN 210496346 U CN210496346 U CN 210496346U
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Abstract
The utility model provides a mixed microreactor of layering, it includes: the device comprises a channel plate (1), wherein at least a first inflow channel (11), a second inflow channel (12) and a mixing channel (13) are formed in the channel plate; at least one first channel lamination (21) is arranged between the first inflow channel (11) and the mixing channel (13), at least one second channel lamination (22) is arranged between the second inflow channel (12) and the mixing channel (13), and the first channel lamination (21) and the second channel lamination (22) are alternately arranged up and down or alternately arranged in the horizontal direction. Through the utility model discloses can make and form the layer that alternate first fluid flowed through and the layer that the second fluid flowed through to fall into a plurality of thin layers with the fluid through the lamination, contact in turn, with fluid layering cross distribution, realize the efficient and mix the mass transfer, realize good mass transfer heat transfer effect, the passageway pressure drop is little simultaneously, does benefit to the industrialization equipment and uses.
Description
Technical Field
The utility model belongs to the technical field of chemical industry, medical machinery, concretely relates to microreactor is mixed to layering.
Background
In the chemical or pharmaceutical production process, the reaction work between fluids is increasingly realized by mixing through a microreactor, and the mixing of two fluids is the most common work of the microreactor. The microreactor is a microchannel reactor established on a continuous flow basis and is used for replacing traditional reactors, such as glass flasks, traditional batch reactors such as reaction kettles commonly used in industrial organic synthesis and the like. The micro-reactor has a large number of micro-reaction channels which are manufactured by precise processing technology, and can provide extremely large specific surface area and extremely high mass and heat transfer efficiency. In addition, the microreactor operates continuously instead of intermittently, making it possible to control the residence time of the reactants accurately. These characteristics allow the organic synthesis reaction to be precisely controlled on a microscopic scale, and provide possibility for improving reaction selectivity and operation safety.
Due to the ultra-strong heat and mass transfer capacity, the micro chemical technology can be widely applied to the fields of chemistry, chemical engineering, energy, environment and the like, in the design of a micro reactor, the current mainstream commercial structure mainly adopts a planar two-dimensional structure, so that a flow interface is difficult to damage in a third direction and depends on the convection effect, and in addition, the pressure drop caused by strong convection also brings burden to the equipment operation.
Because the micro-reactor among the prior art exists that the fluid mixes inadequately, leads to the reactant yield lower to technical problem such as pressure drop and loss of pressure are higher, consequently the utility model discloses research design out a hierarchical mixed micro-reactor.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the present invention lies in overcoming the insufficient defect of fluid mixing in the micro-reactor among the prior art to provide a hierarchical mixing micro-reactor.
The utility model provides a mixed microreactor of layering, it includes:
the device comprises a channel plate, a first inflow channel, a second inflow channel and a mixing channel are formed in the channel plate, a first fluid can be introduced into the first inflow channel, a second fluid can be introduced into the second inflow channel, and the first inflow channel and the second inflow channel are respectively communicated with the mixing channel;
at least one first channel lamination is arranged between the first inflow channel and the mixing channel, and the first channel lamination can block the flow of the fluid in the second inflow channel of the corresponding layer and allow the first fluid in the first inflow channel of the corresponding layer to flow; and at least one second channel lamination is arranged between the second inflow channel and the mixing channel, the second channel lamination can block the flow of the fluid in the first inflow channel corresponding to the layer and allow the second fluid in the second inflow channel corresponding to the layer to flow, and the first channel lamination and the second channel lamination are alternately arranged up and down or horizontally.
Preferably, the first and second electrodes are formed of a metal,
the channel plate is also provided with a mixing region, the mixing region is positioned between the first inflow channel and the mixing channel, and the mixing region is simultaneously positioned between the second inflow channel and the mixing channel;
the first channel laminate includes a first main body portion disposed in the mixing region and a first protrusion portion connected to the first main body portion and extending to an outlet end surface of the second inflow channel or into the second inflow channel to block a flow of the second fluid of the corresponding layer.
Preferably, the first and second electrodes are formed of a metal,
the channel plate is also provided with a mixing region, the mixing region is positioned between the first inflow channel and the mixing channel, and the mixing region is simultaneously positioned between the second inflow channel and the mixing channel;
the second channel laminate includes a second main body portion disposed in the mixing region and a second protrusion portion connected to the second main body portion and extending to an outlet end surface of the first inflow channel or into the first inflow channel to block a flow of the first fluid of the corresponding layer.
Preferably, the first and second electrodes are formed of a metal,
the mixing area comprises a first bevel edge connected with the first inflow channel and a second bevel edge connected with the second inflow channel, and one side of the first main body part opposite to the first bevel edge is arranged at intervals with the first bevel edge; one side of the first main body part opposite to the second bevel edge is attached to the second bevel edge.
Preferably, the first and second electrodes are formed of a metal,
the mixing area comprises a first bevel edge connected with the first inflow channel and a second bevel edge connected with the second inflow channel, and one side edge of the second main body part opposite to the second bevel edge is arranged at intervals with the second bevel edge; one side of the second main body part opposite to the first bevel edge is attached to the first bevel edge.
Preferably, the first and second electrodes are formed of a metal,
the mixing area is a triangular groove structure:
when the first channel lamination comprises a first main body part and a first protruding part, the first main body part is a triangular plate, the first protruding part is a rectangular block, and the first protruding part is connected and arranged at the position, opposite to the second inflow channel, of the first main body part;
when the second channel lamination comprises a second main body part and a second protruding part, the second main body part is also a triangular plate, the second protruding part is also a rectangular block, and the second protruding part is connected and arranged at the position of the second main body part, which is opposite to the first inflow channel.
Preferably, the first and second electrodes are formed of a metal,
the first channel lamination, the spacing lamination and the second channel lamination are sequentially arranged along the height direction or the horizontal direction, and the spacing lamination can block both the layer of the first inflow channel corresponding to the spacing lamination and the layer of the second inflow channel corresponding to the spacing lamination.
Preferably, the first and second electrodes are formed of a metal,
the first channel lamination, the interval lamination and the second channel lamination form a lamination group, and the microreactor comprises more than two lamination groups which are sequentially stacked up and down or horizontally; and/or the first inflow channel and the second inflow channel are both straight channels, and the mixing channel is also a straight channel; and/or distance holes are formed in the first channel lamination, the spacing lamination and the second channel lamination, distance structures are arranged on the channel plates, and the distance structures can be matched and connected with the distance holes.
Preferably, the first and second electrodes are formed of a metal,
the first inflow channel, the second inflow channel, the mixing area, the first channel lamination, the second channel lamination and the interval lamination form a lamination channel unit, and more than two lamination channel units are arranged on the channel plate and are connected in series; a sealing ring groove is also formed in the channel plate and positioned on the outer side of the mixing channel, and a sealing structure is also arranged in the sealing ring groove; and/or the upper surface and/or the lower surface of the channel plate are/is also provided with a heat exchange structure in a fitting manner.
Preferably, the first and second electrodes are formed of a metal,
the downstream side of the mixing channel is also provided with more than two parallel channels in a communicated manner, and the more than two parallel channels are arranged in parallel; and the downstream side of each parallel channel is also connected with a plurality of flow dividing and converging channels.
The utility model provides a pair of mixed microreactor of layering has following beneficial effect:
1. the layered mixing microreactor of the utility model can prevent the second fluid from entering in the layer and only allow the first fluid of the first inflow channel to enter by arranging the first channel lamination between the first inflow channel and the mixing channel, thereby forming the layer through which only the first fluid passes in the layer, and arranging the second channel lamination between the second inflow channel and the mixing channel, thereby preventing the first fluid from entering in the layer and only allow the second fluid of the second inflow channel to enter in the layer, thereby forming the layer through which only the second fluid passes in the layer, and the first channel lamination and the second channel lamination are arranged alternately, thereby forming the layer through which the first fluid flows and the layer through which the second fluid flows alternately, thereby dividing the fluid into a plurality of thin layers through the lamination, alternately contacting, namely, the fluid is layered and cross-distributed, realizing efficient mass mixing and transfer, and realizing good heat transfer effect, meanwhile, because the layered alternate mixing is carried out along the same flowing direction of the two flows, the phenomenon of bending part or bending structure is basically avoided, the phenomenon of impact and the like is avoided, the pressure drop of the channel is small, the pressure loss is low, and the application of industrial equipment is facilitated.
2. The layered mixing microreactor realizes the blocking effect on an inflow channel through the convex part connected with the main body part on the channel lamination, also realizes the blocking effect on fluid through the jointing arrangement of the main body part and the inclined edge of the mixing area on one side edge which is the same as the convex part, and realizes the permission of the circulation of the fluid through the interval arrangement of the side edge of the main body part and the inclined edge of the mixing area at the other end;
3. the utility model discloses the mixed microreactor of layering through setting up the interval lamination, further prevents that first fluid and second fluid from taking place respective mixing in advance (the cluster liquid) before the layering alternately gets into the mixing channel, can make first fluid and second fluid layering more abundant respectively, makes first fluid and second fluid after getting into the mixing channel reach more complete abundant mixing, more abundant of mixing; the positioning function between the first channel lamination and the second channel lamination and the channel plate can be realized through the distance holes and the distance structure; the first and second fluids can be further mixed according to actual conditions through a plurality of lamination channel units connected in series, or a third fluid can be added so as to realize the mixing action of the first, second, third and a plurality of fluids; by connecting a plurality of parallel channels at the downstream side of the mixing channel, the fully mixed fluid can be branched into different parallel channels for further industrial application.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a layered mixing microreactor according to the present invention;
FIG. 2a is a schematic plan view of the first channel stack of FIG. 1;
FIG. 2b is a schematic plan view of the second channel stack of FIG. 1;
FIG. 2c is a schematic plan view of the spacer stack of FIG. 1;
FIG. 3 is a schematic view of the lamination stack fluid domain of FIG. 1;
FIG. 4 is a schematic structural view of a combination scheme A of a layered mixing microreactor according to the present invention;
fig. 5 is a schematic top view of the channel plate of fig. 4;
FIG. 6 is a schematic structural view of a combination scheme B of the layered mixing microreactor of the present invention;
FIG. 7 is a schematic view of the laminated industrial inlet flow field of FIG. 6;
FIG. 8 is a schematic overall structural view of an alternative embodiment of a layered mixing microreactor of the present invention;
FIG. 9a is a schematic plan view of the first channel stack of FIG. 8;
FIG. 9b is a schematic plan view of the second channel stack of FIG. 8;
FIG. 9c is a schematic plan view of the spacer stack of FIG. 8;
fig. 10 is a schematic view of the lamination stack fluid domain of fig. 8.
The reference numbers in the figures denote:
1. a channel plate; 11. a first inflow channel; 12. a second inflow channel; 13. a mixing channel; 14. a mixing region; 141. a first beveled edge; 142. a second beveled edge; 15. a distance structure; 16. parallel channels; 17. A discharge port; 18. a seal ring groove; 21. a first channel stack; 211. a first main body portion; 212. a first projecting portion; 22. a second channel lamination; 221. a second main body portion; 222. a second projection; 3. spacing and laminating; 4. a distance hole; 5. and the flow dividing and converging channels.
Detailed Description
As shown in fig. 1-10, the present invention provides a layered mixing microreactor, comprising:
the channel plate 1 is provided with a first inflow channel 11, a second inflow channel 12 and a mixing channel 13, the first inflow channel 11 can be filled with a first fluid, the second inflow channel 12 can be filled with a second fluid, and the first inflow channel 11 and the second inflow channel 12 are respectively communicated with the mixing channel 13;
at least one first channel lamination 21 is disposed between the first inlet channel 11 and the mixing channel 13 (including direct and indirect connection), the first channel lamination 21 is capable of blocking the flow of the fluid in the second inlet channel 12 corresponding to the layer and allowing the first fluid in the first inlet channel 11 corresponding to the layer to flow, at least one second channel lamination 22 is disposed between the second inlet channel 12 and the mixing channel 13, the second channel lamination 22 is capable of blocking the flow of the fluid in the first inlet channel 11 corresponding to the layer and allowing the second fluid in the second inlet channel 12 corresponding to the layer to flow, and the first channel lamination 21 and the second channel lamination 22 are alternately disposed up and down or horizontally. (the first channel stack and the second channel stack are both solid structures, and fluid flow through the stack locations is blocked or split.)
The layered mixing microreactor of the utility model can prevent the second fluid from entering in the layer and only allow the first fluid of the first inflow channel to enter by arranging the first channel lamination between the first inflow channel and the mixing channel, thereby forming the layer through which only the first fluid passes in the layer, and arranging the second channel lamination between the second inflow channel and the mixing channel, thereby preventing the first fluid from entering in the layer and only allow the second fluid of the second inflow channel to enter in the layer, thereby forming the layer through which only the second fluid passes in the layer, and the first channel lamination and the second channel lamination are arranged alternately, thereby forming the layer through which the first fluid flows and the layer through which the second fluid flows alternately, thereby dividing the fluid into a plurality of thin layers through the lamination, alternately contacting, namely, the fluid is layered and cross-distributed, realizing efficient mass mixing and transfer, and realizing good heat transfer effect, meanwhile, because the layered alternate mixing is carried out along the same flowing direction of the two flows, the phenomenon of bending part or bending structure is basically avoided, the phenomenon of impact and the like is avoided, the pressure drop of the channel is small, the pressure loss is low, and the application of industrial equipment is facilitated.
Preferably, the first and second electrodes are formed of a metal,
a mixing region 14 is further formed on the channel plate 1, the mixing region 14 is located between the first inflow channel 11 and the mixing channel 13, and the mixing region 14 is located between the second inflow channel 12 and the mixing channel 13;
the first channel laminate 21 includes a first main body portion 211 and a first protrusion portion 212, the first main body portion 211 is disposed in the mixing region 14, the first protrusion portion 212 is connected to the first main body portion 211, and the first protrusion portion 212 extends to an outlet end surface of the second inlet flow channel 12 or into the second inlet flow channel 12 to block the flow of the second fluid of the corresponding layer.
This is the preferred structure form of the present invention that provides the first channel lamination, and the mixing area provided between the first inflow channel, the second inflow channel and the mixing channel is used to place the main body of the first channel lamination, and the protrusion of the first channel lamination extends to the outlet end face of the second inflow channel 12 or into the second inflow channel to block the second fluid, so that only the first fluid in the first inflow channel can enter the mixing area and then enter the mixing channel, and the layering effect (without the second fluid) on the first fluid is formed.
Preferably, the first and second electrodes are formed of a metal,
a mixing region 14 is further formed on the channel plate 1, the mixing region 14 is located between the first inflow channel 11 and the mixing channel 13, and the mixing region 14 is located between the second inflow channel 12 and the mixing channel 13;
the second channel laminate 22 includes a second main body portion 221 and a second protrusion 222, the second main body portion 221 is disposed in the mixing region 14, the second protrusion 222 is connected to the second main body portion 221, and the second protrusion 222 extends to an outlet end surface of the first inlet flow channel 11 or into the first inlet flow channel 11 to block the flow of the first fluid of the corresponding layer.
This is the preferred structure form of the present invention that provides the second channel lamination, and is used to place the main body of the second channel lamination through the mixing area provided between the first inflow channel, the second inflow channel and the mixing channel, and the protrusion of the second channel lamination extends to the outlet end face of the second inflow channel 12 or into the first inflow channel to block the first fluid, so that only the second fluid in the second inflow channel can enter the mixing area and then enter the mixing channel, and the layering effect (without the first fluid) on the second fluid is formed.
Preferably, the first and second electrodes are formed of a metal,
the mixing region 14 includes a first inclined edge 141 connected to the first inflow channel 11 and a second inclined edge 142 connected to the second inflow channel 12, and a side of the first body portion 211 opposite to the first inclined edge 141 is spaced apart from the first inclined edge 141; one side of the first main body portion 211 opposite to the second oblique edge 142 is attached to the second oblique edge 142.
This is the utility model discloses a further preferred structural style between mixed region and the first passageway lamination, the side that first main part and first hypotenuse are relative through the first passageway lamination sets up with first hypotenuse interval, can make first fluid get into in this mixed region and then enter into the mixing channel through this interval space, and the side that first main part is relative with the second hypotenuse is laminated with the second hypotenuse and is set up, can make the structure that sets up through first bulge and this laminating make the second fluid by the separation completely on this layer.
Preferably, the first and second electrodes are formed of a metal,
the mixing region 14 includes a first inclined edge 141 connected to the first inflow channel 11 and a second inclined edge 142 connected to the second inflow channel 12, and a side of the second body portion 221 opposite to the second inclined edge 142 is spaced apart from the second inclined edge 142; the side of the second body portion 221 opposite to the first inclined edge 141 is attached to the first inclined edge 141.
This is the utility model discloses a further preferred structural style between mixed region and the second passageway lamination, the second main part through the second passageway lamination sets up with the second hypotenuse interval with the side that the second hypotenuse is relative, can make the second fluid get into in this mixed region and then enter into the hybrid channel through this interval space, and the side that the second main part is relative with first hypotenuse and first hypotenuse laminating setting, can make the structure that sets up through second bulge and this laminating make first fluid by the separation completely on this layer.
Preferably, the first and second electrodes are formed of a metal,
the mixing region 14 is a triangular groove structure:
when the first channel lamination 21 includes the first main body portion 211 and the first protrusion portion 212, the first main body portion 211 is a triangular plate, the first protrusion portion 212 is a rectangular block, and the first protrusion portion 212 is connected and disposed at a position of the first main body portion 211 opposite to the second inflow channel 12;
when the second channel lamination 22 includes the second body portion 221 and the second protrusion 222, the second body portion 221 is also a triangular plate, the second protrusion 222 is also a rectangular plate, and the second protrusion 222 is connected to and disposed at a position of the second body portion 221 opposite to the first inflow channel 11.
The preferred shape and structure form of the mixing region, the first main body part, the first protrusion part, the second main body part and the second protrusion part of the present invention can facilitate the two fluid flows to be respectively guided in through the triangular shape and to be mixed in a layered manner (one bevel edge is attached to prevent the fluid flow from entering, and the other bevel edge is spaced to allow the fluid flow to enter), so as to improve the effect of the layered mixing; namely, the first channel lamination is composed of a first main body part of a triangular plate and a first bulge part of a rectangular block connected with the first main body part at a position opposite to the second inflow channel; the second channel lamination is composed of a second main body part of a triangular plate and a second protruding part of a rectangular block connected with the second main body part, and the second protruding part is arranged at the position, opposite to the first inflow channel, of the second main body part.
Preferably, the first and second electrodes are formed of a metal,
the laminated plate structure further comprises spacing laminated plates 3, the spacing laminated plates 3 are arranged between the adjacent first channel laminated plates 21 and the adjacent second channel laminated plates 22, the first channel laminated plates 21, the spacing laminated plates 3 and the second channel laminated plates 22 are sequentially arranged along the height direction or the horizontal direction, and the spacing laminated plates 3 can block both the layers of the first inflow channels 11 corresponding to the spacing laminated plates and the layers of the second inflow channels 12 corresponding to the spacing laminated plates. Through setting up the interval lamination, can carry out further separation to the fluid between first passageway lamination and the second lamination for first fluid and second fluid layering is more abundant, makes first fluid and second fluid in getting into the mixing channel realize more complete layering mixing effect, and the more abundant of mixing.
A three-dimensional spatial channel is constructed by a laminated sandwich structure, a typical basic structure is shown in fig. 1 and mainly consists of three parts, a channel plate 1, a first channel lamination 21 and a second channel lamination 22.
The channel plate 1 is provided with channels conforming to the shape of the stack of plates and with a distance structure 15. The channel laminations and the spacing laminations 3 are sequentially inserted into the channels at intervals to form fluid areas with crossed partition walls.
The channel lamination is divided into two structural forms of a first channel lamination and a second channel lamination, wherein the first channel lamination and the second channel lamination are alternately arranged up and down to respectively form a left channel and a right channel. There are distance holes 4 to fit the distance structures 15 on the channel plate.
The model is only a simple schematic diagram, the fluid domains are shown in fig. 3, and the fluid a and the fluid B are cut and recombined in layers to realize good mixing.
Preferably, the first and second electrodes are formed of a metal,
the first channel lamination 21, the spacing lamination 3 and the second channel lamination 22 form a lamination set, and the microreactor comprises more than two lamination sets which are sequentially stacked up and down or horizontally; and/or, the first inflow channel 11 and the second inflow channel 12 are both straight channels, and the mixing channel 13 is also a straight channel; and/or distance holes 4 are arranged on the first channel lamination 21, the spacing lamination 3 and the second channel lamination 22, a distance structure 15 is arranged on the channel plate 1, and the distance structure 15 can be matched and connected with the distance holes 4.
The first fluid, the second fluid and the multiple fluids are sequentially and alternately divided into multiple layers and then mixed through sequential stacking of the laminated stacks, the mixing uniformity of the different fluids is effectively improved, the straight channel is the optimal channel, the pressure drop (pressure loss) caused by bending is reduced, and the positioning and fixing effects between the laminated stacks and the channel plate can be realized through the distance holes and the distance structure.
Preferably, the first and second electrodes are formed of a metal,
the first inflow channel 11, the second inflow channel 12, the mixing region 14, the first channel lamination 21, the second channel lamination 22 and the spacing lamination 3 form a lamination channel unit, and more than two lamination channel units are arranged on the channel plate 1 and connected in series; a sealing ring groove 18 is further formed in the channel plate 1 and located on the outer side of the mixing channel 13, and a sealing structure is further arranged in the sealing ring groove 18; and/or the upper surface and/or the lower surface of the channel plate 1 are/is also provided with a heat exchange structure in a fitting manner.
The first and second fluids can be further mixed as the case may be, or a third fluid can be added to achieve a mixing action of the first, second, third and multiple fluids by connecting a plurality of lamination channel units in series.
The number of actual laminations can be increased continuously to enhance the layering effect, and the shape of the channel is not limited to the triangular scheme in this example and can be adjusted according to the actual process conditions. A typical combination scheme a is given below:
as shown in FIG. 4, the reaction plate is provided with a channel, and the reaction channel is connected with a plurality of lamination slots in series, and the number of the lamination slots can be determined according to the process conditions. One end of the reaction channel is provided with a feed inlet, when the reaction channel meets the conditions of more than two materials, a mode of serially connecting lamination grooves can be adopted, and 1 and 2 fluid flows are firstly subjected to lamination and layered mixing and then are mixed with the 3 rd fluid flow in a layered manner. The other end of the reaction channel is provided with a discharge hole. The laminations are alternately inserted into the lamination slots as described above. Similarly, the structure needs to have a certain distance structure, which is not shown here.
Preferably, the first and second electrodes are formed of a metal,
the downstream side of the mixing channel 13 is also provided with more than two parallel channels 16 in a communicating way, and the more than two parallel channels 16 are arranged in parallel; the downstream side of each parallel channel 16 is also connected with a plurality of flow dividing and converging channels 5. By connecting a plurality of parallel channels at the downstream side of the mixing channel, the fully mixed fluid can be branched into different parallel channels for further industrial application.
The structure is the same as the traditional commercial microchannel plate structure, the structure is fixedly connected through bolts, the sealing function is realized by the sealing ring groove, the lamination group can be sequentially embedded into the lamination groove, the sealing is realized through pressing force, and an integral structural member can be formed in advance through welding and the like and then is embedded into the groove.
This scheme can also employ double-sided heat exchange, as with conventional commercial microchannel plate configurations.
In the case, to different process conditions, the lamination groove position and the channel form can be changed correspondingly, for example, in homogeneous reaction (without layering and water alcohol), materials can not be layered after being uniformly mixed, the lamination groove can be adopted at an inlet for layered mixing, and a simple channel form is adopted subsequently, so that the pressure drop and the cost are reduced. In heterogeneous reactions, there is a dynamic equilibrium (e.g., water-oil) between the stratification and polymerization of the dispersed phase, taking into account the tandem formation of the lamination slots depending on the relevant physical parameters of the two-phase fluid, such as interfacial tension.
The patent is also applicable to large-flux industrial parallel channels, and a typical industrial application scheme B is given below:
the structure is illustrated by a simple figure 6-7, which is similar to the above, and also adopts a channel plate engraved with a lamination groove, a plurality of laminations with matched shapes are sequentially embedded into the groove, two materials enter the lamination groove through a first feed inlet and a second feed inlet, and flow out from a plurality of reaction channels connected in parallel after being mixed in a layering way to carry out subsequent reaction.
The processing mode, heat exchange structure, sealing and connection mode of multi-strand materials are similar to those in case A, and are not described again.
Realize the space structure in the microchannel through the lamination thinking, under the continuous combination of cutting apart of fluid, realize high-efficient mass transfer, simultaneously, compare in traditional equipment, because the strong wall striking of big bent angle and the significantly reduced who contracts reducing structure, pressure drop has also obtained improving, does benefit to the industrialization and enlargies.
Compared with the simulation of the existing structure, the inlet structure of the bifurcated distribution structure has the advantages that the pressure drop can be effectively reduced by 90% under the condition that the liquid holdup is slightly changed by adopting the scheme design. On the other hand, from the mixed phase diagram, the distribution effect of the materials can be greatly improved.
TABLE 1 COMPARATIVE WITH DIFFERENTIAL DISTRIBUTION STRUCTURE OF THE INVENTION the utility model discloses a comparison table of the effect of lamination type distribution structure
| Existing bifurcated distribution structure | The utility model discloses a lamination formula distribution structure | |
| Liquid holdup (10mm deep) | 0.94L | 0.90L |
| Simulation area pressure drop (flux 1000 t.) | 0.33MPa | 0.04MPa |
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A layered mixing microreactor, comprising: the method comprises the following steps:
the device comprises a channel plate (1), wherein at least a first inflow channel (11), a second inflow channel (12) and a mixing channel (13) are formed in the channel plate, a first fluid can be introduced into the first inflow channel (11), a second fluid can be introduced into the second inflow channel (12), and the first inflow channel (11) and the second inflow channel (12) are respectively communicated with the mixing channel (13);
at least one first channel stack (21) is arranged between the first inflow channel (11) and the mixing channel (13), the first channel lamination (21) can block the flow of the fluid in the second inflow channel (12) of the corresponding layer and allow the first fluid in the first inflow channel (11) of the corresponding layer to flow, and at least one second channel lamination (22) is also arranged between the second inflow channel (12) and the mixing channel (13), the second channel laminate (22) being capable of blocking the flow of fluid in the first inlet channel (11) of the respective layer and allowing the flow of a second fluid in the second inlet channel (12) of the respective layer, and the first channel lamination (21) and the second channel lamination (22) are alternately arranged up and down or horizontally.
2. The hierarchical mixing microreactor of claim 1, wherein:
a mixing region (14) is further formed in the channel plate (1), the mixing region (14) is located between the first inflow channel (11) and the mixing channel (13), and the mixing region (14) is located between the second inflow channel (12) and the mixing channel (13);
the first channel stack (21) comprises a first main body part (211) and a first protrusion (212), the first main body part (211) being arranged in the mixing region (14), the first protrusion (212) being connected to the first main body part (211) and the first protrusion (212) extending to an outlet end face of the second inlet channel (12) or into the second inlet channel (12) to block the flow of the second fluid of the respective layer.
3. The hierarchical mixing microreactor of claim 1, wherein:
a mixing region (14) is further formed in the channel plate (1), the mixing region (14) is located between the first inflow channel (11) and the mixing channel (13), and the mixing region (14) is located between the second inflow channel (12) and the mixing channel (13);
the second channel laminate (22) comprises a second main body portion (221) and a second protrusion (222), the second main body portion (221) being arranged in the mixing region (14), the second protrusion (222) being connected to the second main body portion (221), and the second protrusion (222) extending to an outlet end face of the first inlet channel (11) or into the first inlet channel (11) to block the flow of the first fluid of the respective layer.
4. The hierarchical mixing microreactor of claim 2, wherein:
the mixing region (14) comprises a first inclined edge (141) connected with the first inflow channel (11) and a second inclined edge (142) connected with the second inflow channel (12), and one side of the first main body part (211) opposite to the first inclined edge (141) is arranged at a distance from the first inclined edge (141); one side of the first main body part (211) opposite to the second inclined edge (142) is attached to the second inclined edge (142).
5. The hierarchical mixing microreactor of claim 3, wherein:
the mixing region (14) comprises a first inclined edge (141) connected with the first inflow channel (11) and a second inclined edge (142) connected with the second inflow channel (12), and one side of the second body part (221) opposite to the second inclined edge (142) is arranged at a distance from the second inclined edge (142); one side of the second main body part (221) opposite to the first inclined edge (141) is attached to the first inclined edge (141).
6. The hierarchical mixing microreactor according to claim 4 or 5, characterized in that:
the mixing area (14) is a triangular groove structure:
when the first channel lamination (21) comprises a first main body part (211) and a first protruding part (212), the first main body part (211) is a triangular plate, the first protruding part (212) is a rectangular block, and the first protruding part (212) is connected and arranged at the position, opposite to the second inflow channel (12), of the first main body part (211);
when the second channel lamination (22) comprises a second main body part (221) and a second protrusion part (222), the second main body part (221) is also a triangular plate, the second protrusion part (222) is also a rectangular block, and the second protrusion part (222) is connected and arranged at a position of the second main body part (221) opposite to the first inflow channel (11).
7. The hierarchical mixing microreactor according to any of claims 1-5, characterized in that:
the novel solar water heater is characterized by further comprising spacing laminations (3), wherein the spacing laminations (3) are arranged between the adjacent first channel laminations (21) and the adjacent second channel laminations (22), the first channel laminations (21), the spacing laminations (3) and the second channel laminations (22) are sequentially arranged along the height direction or the horizontal direction, and the spacing laminations (3) can block the layers of the corresponding first inflow channels (11) and the layers of the corresponding second inflow channels (12).
8. The hierarchical mixing microreactor of claim 7, wherein:
the first channel lamination (21), the spacing lamination (3) and the second channel lamination (22) form a lamination group, and the microreactor comprises more than two lamination groups which are sequentially stacked up and down or horizontally; and/or the first inflow channel (11) and the second inflow channel (12) are both straight channels, and the mixing channel (13) is also a straight channel; and/or distance holes (4) are formed in the first channel lamination (21), the spacing lamination (3) and the second channel lamination (22), a distance structure (15) is arranged on the channel plate (1), and the distance structure (15) can be matched and connected with the distance holes (4).
9. The hierarchical mixing microreactor of claim 7, wherein:
when a mixing area (14) is further included, the first inflow channel (11), the second inflow channel (12), the mixing area (14), the first channel lamination (21), the second channel lamination (22) and the spacing lamination (3) form a lamination channel unit, and more than two lamination channel units are arranged on the channel plate (1) and connected in series; a sealing ring groove (18) is further formed in the channel plate (1) and located on the outer side of the mixing channel (13), and a sealing structure is further arranged in the sealing ring groove (18); and/or the upper surface and/or the lower surface of the channel plate (1) are/is also provided with a heat exchange structure in a fitting manner.
10. The hierarchical mixing microreactor according to any of claims 1-5, 8-9, wherein:
the downstream side of the mixing channel (13) is also provided with more than two parallel channels (16) in a communicating manner, and the more than two parallel channels (16) are arranged in parallel; the downstream side of each parallel channel (16) is also connected with a plurality of flow dividing and converging channels (5).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404490A (en) * | 2019-07-31 | 2019-11-05 | 山东豪迈机械制造有限公司 | A kind of layering mixing microreactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404490A (en) * | 2019-07-31 | 2019-11-05 | 山东豪迈机械制造有限公司 | A kind of layering mixing microreactor |
| CN110404490B (en) * | 2019-07-31 | 2024-05-03 | 山东豪迈机械制造有限公司 | Layered mixing microreactor |
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