CN110227397B - Visual flow microreactor - Google Patents
Visual flow microreactor Download PDFInfo
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- CN110227397B CN110227397B CN201810184895.7A CN201810184895A CN110227397B CN 110227397 B CN110227397 B CN 110227397B CN 201810184895 A CN201810184895 A CN 201810184895A CN 110227397 B CN110227397 B CN 110227397B
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- 230000000007 visual effect Effects 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 138
- 239000011521 glass Substances 0.000 claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims abstract description 19
- 239000007769 metal material Substances 0.000 claims abstract description 8
- 238000009530 blood pressure measurement Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 238000009529 body temperature measurement Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 2
- 238000006552 photochemical reaction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 18
- 238000007789 sealing Methods 0.000 description 12
- 238000012546 transfer Methods 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000006757 chemical reactions by type Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000012429 reaction media Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0093—Microreactors, e.g. miniaturised or microfabricated reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00781—Aspects relating to microreactors
- B01J2219/00873—Heat exchange
Abstract
The present invention provides a visual flow microreactor comprising: a heat exchange shell (8); the upper cover plate (1) is positioned above the heat exchange shell (8); the reaction piece (3), the reaction piece (3) is arranged between the heat exchange shell (8) and the upper cover plate (1), the reaction piece (3) is buckled at the upper end of the heat exchange shell (8) through the upper cover plate (1); the upper cover plate (1) comprises an upper surface, a lower surface and a through groove (11) penetrating through the upper surface and the lower surface vertically, the position of the through groove (11) is also provided with a sight glass (2), and the through groove (11) can be sealed through the sight glass (2); and the reaction piece (3), the heat exchange shell (8) and the upper cover plate (1) are all made of metal materials. The invention can carry out photochemical reaction and can also carry out violent exothermic reaction, so that the microreactor can be simultaneously suitable for photochemical reaction and exothermic chemical reaction, and has wider application range.
Description
Technical Field
The invention belongs to the technical field of chemical engineering and medical machinery, and particularly relates to a visual flow microreactor.
Background
At present, microreactors are mainly divided into two types, one of which is made of glass; the other is made of metal; the glass microreactor can carry out photochemical reaction, but has low total heat transfer efficiency due to low glass thermal conductivity, and is not suitable for reactions with intense heat release. The microreactor made of metal has high heat exchange efficiency, but is light-tight and is not suitable for photochemical reaction. Meanwhile, in the microreactor on the market at present, the reaction piece cannot be replaced usually, or the replacement is time-consuming and labor-consuming, so that the applicable reaction type of the microreactor is limited, and the microreactor cannot be flexibly matched with a more suitable channel form according to the characteristics of a reaction medium.
The invention designs a visual flow microreactor because the microreactor in the prior art has the technical problems that the microreactor cannot be simultaneously suitable for violent exothermic reaction and photochemical reaction, and the reaction type suitable for the microreactor is limited due to the incapability or inconvenient replacement of reaction sheets, and the like.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the microreactor in the prior art cannot be simultaneously suitable for violent exothermic reaction and photochemical reaction, thereby providing a visible flow microreactor.
The present invention provides a visual flow microreactor comprising:
a heat exchange shell;
the upper cover plate is positioned above the heat exchange shell;
the reaction piece is arranged between the heat exchange shell and the upper cover plate, and is buckled at the upper end of the heat exchange shell through the upper cover plate;
the upper cover plate comprises an upper surface, a lower surface and a through groove penetrating through the upper surface and the lower surface vertically, a sight glass is further arranged at the position of the through groove, and the through groove can be sealed through the sight glass;
and the reaction plate, the heat exchange shell and the upper cover plate are all made of metal materials.
Preferably, the method comprises the steps of,
the through groove comprises a first groove and a second groove, wherein the first groove is positioned above in the vertical direction and used for observing, the second groove is positioned below the first groove and used for accommodating the sight glass, the first groove is connected with the second groove, and the projection area of the second groove on the horizontal plane is larger than that of the first groove.
Preferably, a gasket is further arranged at a position where the sight glass contacts with the upper cover plate, and/or the sight glass is made of at least one of glass, quartz and silicon carbide.
Preferably, the method comprises the steps of,
the upper cover plate is provided with a first screw hole penetrating through the upper cover plate in the vertical direction, the position, corresponding to the first screw hole, of the heat exchange shell is also provided with a second screw hole in the vertical direction, and a third screw hole penetrating through the upper cover plate in the vertical direction is provided with the first screw hole and the second screw hole corresponding to the first screw hole, so that bolts can penetrate through the first screw hole, the second screw hole and the third screw hole simultaneously to fixedly connect the upper cover plate, the heat exchange shell and the reaction plate together.
Preferably, the first screw holes are multiple, the second screw holes are also multiple and correspond to the first screw hole positions one by one, and the third screw holes are also multiple and correspond to the first screw hole positions one by one.
Preferably, the method comprises the steps of,
a micro-reaction channel capable of allowing fluid to flow therethrough and performing reaction is engraved on the reaction plate; and/or the reaction piece is also provided with a plurality of interfaces for feeding, temperature measurement, pressure measurement, sampling and discharging;
preferably, the micro-reaction channel is at least one of an umbrella-type structure, a square-type structure, a serpentine-type structure and a channel form with a back-mixing region.
Preferably, the method comprises the steps of,
the heat exchange shell is provided with medium channels which are in one-to-one correspondence with the interfaces on the reaction plates, one ends of the medium channels are communicated with the interfaces, and the other ends of the medium channels are communicated with the outside, and the heat exchange shell also comprises plugs which can block the interfaces or the medium channels.
Preferably, the method comprises the steps of,
the inside of heat exchange shell has accommodation space, and is in still be provided with heat exchange component in the accommodation space, just heat exchange component's upper surface with the lower surface of reaction piece contacts, just one side of heat exchange shell is provided with heat exchange medium import, the opposite side is provided with the heat exchange medium export, makes heat exchange medium can get into heat exchange component position with exchange heat between the reaction piece.
Preferably, the method comprises the steps of,
the heat exchange assembly comprises a plurality of heat exchange plates and a heat exchange tube, wherein the heat exchange plates are sleeved on the outer peripheral surface of the heat exchange tube, the heat exchange plates are arranged in parallel at intervals, and a notch capable of allowing a heat exchange medium to pass through is formed at one side corner or two side corners of the lower end of the heat exchange plate, so that one part of the heat exchange medium enters the heat exchange tube, and the other part of the heat exchange medium flows through the notch of the heat exchange plate.
Preferably, the method comprises the steps of,
the plurality of heat exchange plates comprise an outer heat exchange plate positioned at the outermost side and an inner heat exchange plate positioned between the outer heat exchange plates, wherein the notches are formed at the corners of two sides of the lower end of the outer heat exchange plate, and the lower end of the inner heat exchange plate is provided with the notches only at the corners of one side.
Preferably, the method comprises the steps of,
the notches in each of the adjacent two inner heat exchanger plates are formed at different side edge angular positions so that the heat exchange medium forms a serpentine flow between the adjacent inner heat exchanger plates.
Preferably, the method comprises the steps of,
the heat exchange device also comprises a distance tube, wherein the distance tube is sleeved outside the heat exchange tube and used for limiting the distance between the two heat exchange plates; and/or the heat exchange tube is assembled with a plurality of heat exchange plates in an expansion joint manner; and/or at least one of the heat exchange tube, the heat exchange fin and the distance tube is made of a heat conducting material; and/or the heat exchange plate is approximately cuboid.
The visual flow microreactor provided by the invention has the following beneficial effects:
1. according to the visual flow micro-reactor, through the through grooves penetrating through the upper surface and the lower surface are arranged on the upper cover plate vertically, the through grooves are further provided with the sight glass, and the through grooves can be sealed through the sight glass; the reaction piece, the heat exchange shell and the upper cover plate are all made of metal materials, the interior of the micro-reactor can be monitored through a sight glass, photochemical reaction can be carried out, and as the reaction piece, the heat exchange shell and the upper cover plate are all made of metal materials, violent exothermic reaction can be carried out in the reaction piece, so that the micro-reactor can be simultaneously suitable for photochemical reaction and exothermic chemical reaction (including homogeneous phase reaction and heterogeneous mixed reaction of gas-liquid and liquid-liquid), and the application range is wider;
2. according to the visual flow micro-reactor, the first screw hole is formed in the upper cover plate in the penetrating manner in the vertical direction, the second screw hole is also formed in the position, corresponding to the first screw hole, of the heat exchange shell in the vertical direction, the third screw hole is formed in the reaction plate in the penetrating manner in the vertical direction, corresponding to the first screw hole and the second screw hole, so that bolts can penetrate through the first screw hole, the second screw hole and the third screw hole at the same time to fixedly connect the upper cover plate, the heat exchange shell and the reaction plate together, the upper cover plate, the sight glass, the reaction plate and the heat exchange shell are screwed only by the same threaded stud penetrating vertically, the reaction plate is more convenient to install and detach, different reaction plates can be selected for different reaction types, and the application range is wide;
3. according to the visual flow microreactor, the reaction piece is further provided with the plurality of interfaces for feeding, temperature measurement, pressure measurement, sampling and discharging, so that feeding, temperature measurement, pressure measurement, sampling and discharging can be respectively or simultaneously carried out, the functions of each interface are different for different process conditions, and feeding and reaction of a plurality of strands of materials can be realized; the plug is arranged to plug the interface or the medium channel, so that the corresponding interface or the medium channel can be closed according to actual needs, and the purposes of convenient and flexible operation and intelligent control are realized;
4. according to the visual flow microreactor disclosed by the invention, the heat exchange component which is arranged on the reaction plate and is in contact with the reaction plate can perform a heat exchange function on the reaction plate, so that heat generated by the reaction is conducted, the heat is effectively utilized, the heat exchange component comprises a plurality of heat exchange plates and the heat exchange tubes, the heat exchange plates are sleeved on the outer peripheral surfaces of the heat exchange tubes, the corners of one side or the corners of two sides of the lower end of the heat exchange plates are provided with notches which can allow a heat exchange medium to pass through, one part of the heat exchange medium exchanges heat with the heat exchange plates through the heat exchange tubes, the other part exchanges heat with the heat exchange plates around the heat exchange tubes through the notches, the heat exchange effect between the heat exchange plates and the surfaces of the heat exchange plates is improved through the heat exchange function of the two parts, the temperature of the heat exchange component is more uniform, and the heat exchange efficiency is improved.
Drawings
FIG. 1 is a perspective view of a flow-through microreactor according to the invention;
FIG. 2 is a schematic diagram of a front exploded view of a visual flow microreactor of the present invention;
FIG. 3 is a cross-sectional view of the upper cover plate of FIG. 1 taken along the direction A-A;
FIG. 4 is a top view block diagram of a reaction plate of a visual flow microreactor of the present invention;
FIG. 5 is a front view block diagram of a plug of a visual flow microreactor of the present invention;
FIG. 6 is a perspective view of the heat exchange shell of the visual flow microreactor of the present invention;
FIG. 7 is a top view of the heat exchange shell of FIG. 6;
FIG. 8 is a perspective view of the heat exchange assembly of the visual flow microreactor of the present invention;
FIG. 9 is a schematic view of the view in direction B of FIG. 8;
FIG. 10 is a schematic front view of the outer plate of FIG. 8;
FIG. 11 is a schematic front view of a first construction of the inner heat exchanger plate of FIG. 8;
fig. 12 is a schematic front view of a second construction of the inner heat exchanger plate of fig. 8.
The reference numerals in the drawings are as follows:
1. an upper cover plate; 11. a through groove; 11a, a first groove; 11b, a second groove; 12. a first screw hole; 2. a viewing mirror; 3. a reaction plate; 31. a third screw hole; 32. an interface; 321. an interface I; 322. an interface II; 323. an interface III; 324. an interface IV; 325. an interface V; 326. a sixth interface; 327. an interface seven; 328. an interface eight; 329. an interface nine; 3210. an interface ten; 4. a plug; 5. a positioning pin; 6. a heat exchange assembly; 61. a heat exchange plate; 610. a notch; 611. an outer heat exchange plate; 612. an inner heat exchange plate; 62. a heat exchange tube; 63. a distance tube; 7. a heat exchange inlet member; 8. a heat exchange shell; 81. a second screw hole; 82. a media channel; 821. a first medium channel; 822. a medium channel II; 823. a medium channel III; 824. a medium channel IV; 825. a medium channel V; 826. a medium channel six; 827. a medium channel seven; 828. medium channel eight; 829. a medium channel nine; 8210. medium channel ten; 83. a heat exchange inlet channel; 84. a heat exchange outlet channel; 9. a heat exchange outlet member; 10. a bolt; 13. a gasket; 14. and (3) sealing rings.
Detailed Description
Example 1
As shown in fig. 1-3, the present invention provides a visual flow microreactor suitable for photochemical reactions, liquid-liquid reactions, gas-liquid reactions, comprising:
a heat exchange shell 8;
an upper cover plate 1 positioned above the heat exchange shell 8;
the reaction plate 3 is arranged between the heat exchange shell 8 and the upper cover plate 1, and the reaction plate 3 is buckled at the upper end of the heat exchange shell 8 through the upper cover plate 1;
the upper cover plate 1 comprises an upper surface, a lower surface and a through groove 11 penetrating through the upper surface and the lower surface vertically, wherein a sight glass 2 is further arranged at the position of the through groove 11, and the through groove 11 can be sealed through the sight glass 2;
and the reaction plate 3, the heat exchange shell 8 and the upper cover plate 1 are all made of metal materials.
Through the upper cover plate, a through groove penetrating through the upper surface and the lower surface is vertically arranged on the upper cover plate, a sight glass is further arranged at the position of the through groove, and the through groove can be sealed through the sight glass; and the reaction piece the heat exchange shell and the upper cover plate are made of metal materials, can monitor the interior of the microreactor through the sight glass and can carry out photochemical reaction, and because the reaction piece the heat exchange shell and the upper cover plate are made of metal materials, can also carry out violent exothermic reaction therein, so that the microreactor can be simultaneously suitable for photochemical reaction and exothermic chemical reaction (including homogeneous phase reaction and heterogeneous mixed reaction of gas-liquid and liquid-liquid), and the application range is wider.
The invention aims to provide the visual flow microreactor which is simultaneously applicable to homogeneous phase reaction, heterogeneous phase mixing and reaction of gas, liquid and photochemical reaction, has wider application range, can be integrally disassembled, has more convenient replacement of reaction sheets and can be matched with different channel forms for different reactions.
The microreactor consists of an upper cover plate 1, a sight glass 2, a reaction piece 3, a plug 4, a locating pin 5, a heat exchange assembly 6, a heat exchange inlet part 7, a heat exchange shell 8, a heat exchange outlet part 9, sealing rings, gaskets and the like for sealing, wherein the reaction piece is connected with external equipment through ten interfaces, and an installation diagram is shown in fig. 1-2.
Preferably, the method comprises the steps of,
referring to fig. 3, the through groove 11 includes a first groove 11a for viewing located above in a vertical direction and a second groove 11b located below for accommodating the mirror 2, the first groove 11a is connected to the second groove 11b, and a projected area of the second groove 11b on a horizontal plane is larger than a projected area of the first groove 11a on a horizontal plane. Through such structure can hold and install the sight glass through the second recess, through first recess and upper cover plate top the same and can be convenient for the observer observe, the observer can observe the condition that takes place in the inside reaction piece of microreactor through the sight glass again through first recess to because can be by light transmission, can make this microreactor inside carry out photochemical reaction, the sight glass can seal in order to prevent that inside reaction fluid from leaking to leading to the groove, guarantee that the reaction normally goes on in airtight space.
Preferably, a gasket 13 (preferably a rubber gasket) is further disposed at a position where the sight glass 2 contacts the upper cover plate 1, and/or the sight glass 2 is made of at least one of glass, quartz, and silicon carbide. Referring to fig. 2, the gasket can be used to buffer the contact pressure of the sight glass and the upper cover plate, and the sight glass is made of at least one of glass, quartz and silicon carbide, so that the sight glass can be transparent and visible, and can be prevented from reacting with the medium in the microreactor.
Example 2
As in fig. 1-3, this embodiment is a further definition made on the basis of embodiment 1, which, preferably,
the upper cover plate 1 is provided with a first screw hole 12 penetrating through the upper cover plate in the vertical direction, the position, corresponding to the first screw hole 12, of the heat exchange shell 8 is also provided with a second screw hole 81 in the vertical direction, and the reaction plate 3 is provided with a third screw hole 31 penetrating through the upper cover plate in the vertical direction, corresponding to the first screw hole 12 and the second screw hole 81, so that a bolt 10 can penetrate through the first screw hole 12, the second screw hole 81 and the third screw hole 31 at the same time, and the upper cover plate 1, the heat exchange shell 8 and the reaction plate 3 are fixedly connected together.
Through being provided with first screw on the upper cover plate along vertical direction throughout, on the heat exchange shell with the position that first screw corresponds also is provided with the second screw along vertical direction, and on the reaction piece with first screw with the second screw is provided with the third screw along vertical direction throughout corresponding, makes the bolt can run through simultaneously first screw second screw with the third screw with the upper cover plate the heat exchange shell with the common fixed connection of reaction piece can make upper cover plate, sight glass, reaction piece, heat exchange shell only rely on the stud of running through from top to bottom of same root or several alright screw down for the reaction piece installation, dismantlement are more convenient, can select to use different reaction pieces, and application scope is wide.
Further preferably, the number of the first screw holes 12 is plural, the number of the second screw holes 81 is plural and corresponds to the number of the first screw holes 12 one by one, and the number of the third screw holes 31 is plural and corresponds to the number of the first screw holes 12 one by one. The positions and the numbers of the first screw holes, the second screw holes and the third screw holes are corresponding effectively, and the same bolt is ensured to penetrate through the upper cover plate, the heat exchange shell and the reaction piece vertically along the vertical direction, so that the installation, the fastening and the assembly are convenient.
The upper cover plate 1, the reaction plate 3 and the heat exchange shell 8 are provided with bolt holes from top to bottom, and the bolts are matched for connecting the whole equipment. The groove of the upper cover plate 1 wraps the sight glass 2 and is connected with the reaction plate 3 through bolts penetrating through the whole equipment. The groove of the heat exchange shell 8 wraps the heat exchange assembly 6 (or called heat exchange core), and is connected with the reaction plate 3 through bolts penetrating through the whole equipment, the upper surface of the heat exchange core is completely attached to the lower surface of the reaction plate 3, and heat is conducted to the heat exchange core through the reaction plate (i.e. exothermic reaction), or heat is conducted to the reaction plate through the heat exchange core (i.e. endothermic reaction). The heat exchange core is preferably made of pure copper, and is used for transmitting heat on the reaction plate to the heat exchange core through the heat exchange medium and leading out the heat, or is used for transmitting the heat of the heat exchange medium to the reaction plate through the heat exchange core. The plug 4 is arranged in a circular groove formed in the heat exchange shell 8, the cylinders at the two ends of the plug are respectively inserted into the interfaces of the heat exchange shell 8 and the reaction piece 3 and used for opening and closing the interfaces, when the interfaces are required to be communicated, the plug is taken off, and only the sealing ring is placed in the circular groove of the heat exchange shell 8, so that the interfaces of the heat exchange shell 8 are communicated with the interfaces of the reaction piece 3, and the opening of the interfaces is realized; when the interface is required to be closed, the plug is placed in the circular groove of the heat exchange shell 8, and then the sealing ring is sleeved at one end of the plug, so that the interface of the heat exchange shell 8 is disconnected from the interface of the reaction piece 3, and the closing of the interface is realized. The purpose of opening and closing the interfaces is to determine the number and positions of the inlet and outlet of the equipment and the monitoring ports according to the process conditions. Schematic structural diagrams of the visible flow microreactor are shown in FIGS. 1-2.
Example 3
As shown in fig. 4, this embodiment is further defined on the basis of embodiments 1 and 2, and preferably, micro-reaction channels (which are micro-or millimeter-sized channels, preferably, 500-1000 micro-channels) capable of allowing fluid to flow therethrough and react are engraved on the reaction plate 3; and/or, the reaction plate 3 is also provided with a plurality of interfaces 32 for feeding, temperature measurement, pressure measurement, sampling and discharging;
the micro-reaction channel is engraved on the reaction piece, so that fluid can flow through the micro-reaction channel to realize micro-reaction, and the reaction piece is further provided with a plurality of interfaces for feeding, temperature measurement, pressure measurement, sampling and discharging, so that feeding, temperature measurement, pressure measurement, sampling and discharging can be respectively or simultaneously carried out, and the functions of each interface are different for different process conditions, so that feeding and reaction of a plurality of materials can be realized.
Preferably, the micro-reaction channel is at least one of an umbrella-type structure, a square-type structure, a serpentine-type structure and a channel form with a back-mixing region. This is a particularly preferred structural form of the microreaction channel of the present invention.
The upper cover plate 1 wraps the sight glass 2, a rubber gasket is placed at the contact position of the upper cover plate and the sight glass for buffering the contact pressure of the sight glass and the upper cover plate, the sight glass is connected with the reaction piece 3 through a bolt penetrating through the whole equipment, and a sealing ring groove is arranged on the reaction piece and matched with a sealing ring for sealing.
The reaction piece 3 is provided with ten interfaces (one-ten interfaces) except the sealing ring groove, which are respectively used for feeding, temperature measurement, pressure measurement, sampling and discharging, and the functions of each interface are different for different process conditions, so that the feeding and the reaction of a plurality of strands of materials can be realized; the reaction plate is engraved with micro-scale or millimeter-scale channels (preferably 500-1000 micron channels), which can include umbrella-shaped, square, serpentine and channel forms with back mixing areas, and different reaction plates are replaced according to different reaction types, such as a serpentine channel for homogeneous reaction and a channel with back mixing areas for gas-liquid reaction, wherein the umbrella-shaped channels have the widest application range. In addition, 2 positioning pin holes are formed in the reaction piece and used for positioning during installation; taking an umbrella-shaped channel reaction plate as an example, the structural form is shown in fig. 4.
Example 4
As shown in fig. 5-7, this embodiment is further defined on the basis of embodiments 1-3, and preferably, the heat exchange shell 8 is provided with a medium channel 82 corresponding to the interfaces 32 on the reaction plate 3 one by one, one end of the medium channel is communicated with the interfaces 32, and the other end of the medium channel is communicated with the outside, and further includes a plug 4 capable of plugging the interfaces 32 or the medium channel 82. The reaction fluid can be led into the reaction plate and the fluid in the reaction plate is led out of the heat exchange shell through the medium channel arranged on the heat exchange shell, and the interface or the medium channel can be plugged through the plug, so that the corresponding interface or the medium channel can be closed according to actual needs, and the purpose of intelligent control is realized.
The sealing ring groove is arranged on the upper surface of the heat exchange shell 8, the heat exchange cavity is guaranteed not to leak by being matched with the sealing ring, ten medium channels communicated with the outside are simultaneously arranged on the heat exchange shell 8, the ten interfaces of the reaction plate are in one-to-one correspondence, reaction medium can respectively pass through the medium channels along the inlets of the heat exchange shell 8 and reach the corresponding interfaces on the reaction plate, the interfaces of the heat exchange shell correspond to the interfaces of the reaction plate, so that the medium enters the reaction plate, and flows out of the reactor from the partial outlets of the heat exchange shell along the corresponding partial medium channels respectively from the partial interfaces of the reaction plate. In the reaction process, ten interfaces are not required to be opened at the same time, and the plugs 4 can be used for blocking the interfaces of the medium channels and the reaction sheets to prevent the medium from flowing, so that round grooves are processed at the ten interfaces of the heat exchange shell 8, and when the interfaces are used for medium inlet and outlet, only O-shaped rings are placed in the grooves for sealing, and the medium can flow but cannot leak; when the interface does not need medium to enter and exit, a plug and an O-shaped ring are placed in the groove to block the medium, and the structural schematic diagram of the plug is shown in fig. 4. The space for placing the heat exchange core (namely the heat exchange component) is reserved in the heat exchange shell 8, the grooving depth is completely consistent with the height of the heat exchange core, so that the upper surface of the heat exchange core can be completely attached to the lower surface of the reaction piece, and the heat transfer is more efficient. The two sides of the heat exchange shell 8 are respectively provided with a heat exchange inlet and a heat exchange outlet for heat exchange. The specific structure of the heat exchange shell 8 is schematically shown in fig. 6-7.
Example 5
As shown in fig. 2 and 6, this embodiment is further defined on the basis of embodiments 1 to 4, preferably, an accommodating space is provided inside the heat exchange shell 8, a heat exchange component 6 is further provided in the accommodating space, an upper surface of the heat exchange component 6 is in contact with a lower surface of the reaction plate 3, and a heat exchange medium inlet is provided on one side of the heat exchange shell 8, and a heat exchange medium outlet is provided on the other side of the heat exchange shell, so that the heat exchange medium can enter a part of the heat exchange component 6 to exchange heat with the reaction plate 3. The heat exchange component contacted with the reaction plate can exchange heat with the reaction plate, so that heat generated by the reaction is conducted out and effectively utilized.
Preferably, as shown in figures 8-9,
the heat exchange assembly 6 includes a plurality of heat exchange plates 61 and heat exchange tubes 62, wherein the plurality of heat exchange plates 61 are sleeved on the outer peripheral surface of the heat exchange tubes 62, the plurality of heat exchange plates 61 are arranged in parallel at intervals, and notches 610 capable of allowing heat exchange medium to pass through are formed at corners of one side or corners of two sides of the lower ends of the heat exchange plates 61, so that one part of the heat exchange medium enters the heat exchange tubes 62, and the other part of the heat exchange medium flows through the notches 610 of the heat exchange plates. Namely, one part of the heat exchange medium exchanges heat with the heat exchange plates through the copper pipes, and the other part exchanges heat with the heat exchange plates through the gaps.
The heat exchange assembly comprises a plurality of heat exchange plates and heat exchange tubes, wherein the heat exchange plates are sleeved on the outer peripheral surface of the heat exchange tubes, a notch capable of allowing a heat exchange medium to pass through is formed in one side corner or two side corners of the lower end of each heat exchange plate, one part of the heat exchange medium exchanges heat with the heat exchange plates through the heat exchange tubes, the other part exchanges heat with the heat exchange plates through the notch, the heat exchange medium in the heat exchange tubes exchanges heat with the heat exchange plates around the heat exchange tubes, and meanwhile, the heat exchange effect between the heat exchange plates and the reaction plates can be improved through the heat exchange effect of the two parts, so that the temperature of the heat exchange assembly is more uniform, and the heat exchange efficiency is improved.
Preferably, the method comprises the steps of,
the plurality of heat exchange plates 61 include an outer heat exchange plate 611 located at the outermost side and an inner heat exchange plate 612 located between the outer heat exchange plates 611, and the notches 610 are formed at both side corners of the lower end of the outer heat exchange plate 611, and the notches 610 are formed at only one side corner of the lower end of the inner heat exchange plate 612.
The heat exchange plates are divided into two shapes, the first one is a lower left corner and the lower right corner is arc-shaped, and the first and the last one (i.e., the outer heat exchange plates 611) are used as the heat exchange core, as shown in fig. 10; another is that the lower right corner is rounded and the lower left corner is right angled as the intermediate plate of the heat exchanger core (i.e., the first form of the inner heat exchanger plate 612), as shown in fig. 11, and yet another is that the lower left corner is rounded and the lower right corner is right angled as the intermediate plate of the heat exchanger core (i.e., the second form of the inner heat exchanger plate 612), as shown in fig. 12. When the device is installed, the right angles of the even plates are arranged on one side, and the right angles of the odd plates are arranged on the other side. The purpose of installation like this is letting heat transfer medium have certain disturbance, prevents heat transfer medium short circuit (heat transfer medium short circuit means that heat transfer medium is insufficient heat transfer, directly gets into from the entry, and the export flows, and the heat transfer effect is not good, through setting up the heat transfer chip of taking the breach, and breach direction inconsistent, can play the effect of vortex to heat transfer medium). The heat exchange assembly 6 (or heat exchange core) is shown in fig. 8-9.
Preferably, the method comprises the steps of,
the notches in each of the adjacent two of the inner heat exchanger plates 612 are formed at different side angular positions so that the heat exchange medium forms a serpentine flow between the adjacent inner heat exchanger plates. When the reaction medium flows into the heat exchange shell 8, the heat exchange medium enters the grooves of the heat exchange shell 8 through the heat exchange inlet of the heat exchange shell 8, the heat exchange fluid is divided into two parts, one part enters the heat exchange tube (preferably a copper tube) and flows along the copper tube, the other part flows through the gaps of the heat exchange plates, and the heat exchange fluid flows in a serpentine shape under the disturbance of the heat exchange plates due to the different directions of the gaps of the two adjacent heat exchange plates. The last two parts of heat exchange fluid flow out of the heat exchange outlet together.
Preferably, the method comprises the steps of,
8-12, a distance tube 63 is further included, and the distance tube 63 is sleeved outside the heat exchange tube 62 and used for limiting the distance between the two heat exchange plates 61; and/or, the heat exchange tube 62 is assembled with a plurality of the heat exchange plates 61 by expansion joint; and/or at least one of the heat exchange tube 62, the heat exchange plate 61 and the distance tube 63 is made of a heat conducting material, preferably the same material with good heat conducting property, and further preferably copper; and/or, the heat exchange plate 61 has an approximately rectangular parallelepiped structure.
The heat exchange component is made of pure copper, and the heat conductivity coefficient of the heat exchange component is much higher than that of the pure copper, so that the heat transfer efficiency can be remarkably improved, and when the reaction releases heat or absorbs heat severely, the high heat transfer efficiency can ensure that the reaction is carried out at a constant temperature, and byproducts are reduced. The height of the heat exchange component is consistent with the height and width of the groove of the heat exchange shell 8, and the heat exchange component consists of heat exchange plates, copper pipes and distance pipes, wherein the copper pipes are assembled with the heat exchange plates in an expansion joint mode, and the distance pipes are sleeved on the outer sides of the copper pipes and used for limiting the distance between the two heat exchange plates.
The visual flow microreactor is provided with a sight glass, can visually monitor the medium flow and the reflection condition of the whole channel, and can also carry out photochemical reaction.
The whole microreactor is simple in structure and seal, is not easy to leak, is screwed up by the same penetrating stud from top to bottom respectively, is convenient to install and detach, can select different reaction plates for different reaction types, is wide in application range, and is suitable for carrying out feasibility research in a laboratory. The reactor has ten inlets and outlets, and can be provided with medium inlets, medium outlets, medium temperature measurement and medium pressure measurement quantity and medium pressure measurement positions according to different process and test requirements, so that the functionality of the microreactor is greatly improved, meanwhile, a metal heat exchange mode is adopted, the traditional liquid heat exchange mode is abandoned, and the advantage of high heat exchange efficiency of the metal microreactor is fully exerted.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. A visual flow microreactor, characterized by: comprising the following steps:
a heat exchange shell (8);
the upper cover plate (1) is positioned above the heat exchange shell (8);
the reaction piece (3), the reaction piece (3) is arranged between the heat exchange shell (8) and the upper cover plate (1), and the reaction piece (3) is buckled at the upper end of the heat exchange shell (8) through the upper cover plate (1);
the upper cover plate (1) comprises an upper surface, a lower surface and a through groove (11) penetrating through the upper surface and the lower surface vertically, a sight glass (2) is further arranged at the position of the through groove (11), and the through groove (11) can be sealed through the sight glass (2);
the reaction plate (3), the heat exchange shell (8) and the upper cover plate (1) are all made of metal materials;
the inside of the heat exchange shell (8) is provided with an accommodating space, a heat exchange component (6) is further arranged in the accommodating space, the upper surface of the heat exchange component (6) is in contact with the lower surface of the reaction plate (3), and a heat exchange medium inlet is arranged on one side of the heat exchange shell (8), and a heat exchange medium outlet is arranged on the other side of the heat exchange shell, so that the heat exchange medium can enter the position of the heat exchange component (6) to exchange heat with the reaction plate (3);
the heat exchange assembly (6) comprises a plurality of heat exchange plates (61) and a heat exchange tube (62), wherein the heat exchange plates (61) are sleeved on the outer peripheral surface of the heat exchange tube (62), the heat exchange plates (61) are arranged at intervals in parallel, and notches (610) capable of allowing heat exchange media to pass through are formed at corners of one side or corners of two sides of the lower end of the heat exchange plate (61), so that one part of the heat exchange media enters the heat exchange tube (62), and the other part of the heat exchange media flows through the notches (610) of the heat exchange plates; the heat exchange medium in the heat exchange tube exchanges heat with the heat exchange plates around the heat exchange tube, and the heat exchange medium exchanges heat with the surfaces of the heat exchange plates through the gaps, so that the heat exchange effect between the heat exchange plates and the reaction plates can be improved through the heat exchange effect of the two parts, the temperature of the heat exchange assembly is more uniform, and the heat exchange efficiency is improved;
-the reaction plate (3) is engraved with micro-reaction channels capable of allowing a fluid to flow therethrough and react; and/or the reaction piece (3) is also provided with a plurality of interfaces (32) for feeding, temperature measurement, pressure measurement, sampling and discharging.
2. The visual flow microreactor of claim 1, wherein:
the through groove (11) comprises a first groove (11 a) which is positioned above and used for observing along the vertical direction and a second groove (11 b) which is positioned below and used for accommodating and arranging the sight glass (2), the first groove (11 a) is connected with the second groove (11 b), and the projection area of the second groove (11 b) on the horizontal plane is larger than that of the first groove (11 a).
3. The visual flow microreactor of claim 1, wherein:
and a gasket (13) is further arranged at the contact position of the sight glass (2) and the upper cover plate (1), and/or the sight glass (2) is made of at least one of glass, quartz and silicon carbide.
4. The visual flow microreactor of claim 1, wherein:
the upper cover plate (1) is provided with a first screw hole (12) penetrating through the upper cover plate in the vertical direction, the position, corresponding to the first screw hole (12), of the heat exchange shell (8) is also provided with a second screw hole (81) in the vertical direction, and a third screw hole (31) penetrating through the upper cover plate (1) in the vertical direction is correspondingly arranged on the reaction piece (3) corresponding to the first screw hole (12) and the second screw hole (81), so that bolts (10) can penetrate through the first screw hole (12), the second screw hole (81) and the third screw hole (31) simultaneously, and the upper cover plate (1), the heat exchange shell (8) and the reaction piece (3) are fixedly connected together.
5. The visual flow microreactor of claim 4, wherein:
the first screw holes are multiple, the second screw holes are multiple and correspond to the first screw holes one by one, and the third screw holes are multiple and correspond to the first screw holes one by one.
6. The visual flow microreactor of claim 1, wherein:
the micro-reaction channel is at least one of an umbrella-shaped structure, a square structure, a serpentine structure and a channel form with a back mixing area.
7. The visual flow microreactor of claim 1, wherein:
the heat exchange shell (8) is provided with medium channels (82) which are in one-to-one correspondence with the interfaces (32) on the reaction piece (3), one ends of which are communicated with the interfaces (32), and the other ends of which are communicated with the outside, and the heat exchange shell also comprises plugs (4) which can plug the interfaces (32) or the medium channels (82).
8. The visual flow microreactor of claim 1, wherein:
the plurality of heat exchange plates (61) comprise an outer heat exchange plate (611) positioned at the outermost side and an inner heat exchange plate (612) positioned between the outer heat exchange plates (611), wherein the notches (610) are formed at both side corners of the lower end of the outer heat exchange plate (611), and the notches (610) are formed at only one side corner of the lower end of the inner heat exchange plate (612).
9. The visual flow microreactor of claim 8, wherein:
the notches in each of two adjacent inner heat exchanger plates (612) are formed at different side angular positions so that the heat exchange medium forms a serpentine flow between adjacent inner heat exchanger plates.
10. The visual flow microreactor according to any one of claims 1 to 9, wherein:
the heat exchange assembly (6) further comprises a distance tube (63), and the distance tube (63) is sleeved on the outer side of the heat exchange tube (62) and used for limiting the distance between the two heat exchange plates (61); and/or the heat exchange tube (62) is assembled with a plurality of the heat exchange plates (61) in an expanded connection mode; and/or at least one of the heat exchange tube (62), the heat exchange plate (61) and the distance tube (63) is made of a heat conducting material; and/or the heat exchange plate (61) has an approximately cuboid structure.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200536B1 (en) * | 1997-06-26 | 2001-03-13 | Battelle Memorial Institute | Active microchannel heat exchanger |
| JP2005203665A (en) * | 2004-01-19 | 2005-07-28 | Kiko Kagi Kofun Yugenkoshi | Heat dissipating module structure and manufacturing method therefor |
| DE202006002858U1 (en) * | 2006-02-23 | 2006-04-27 | Kuo, Hua-Shou, Tansui | Combination cooler module for cooling purposes comprises cooling ribs, heating tubes passing through the ribs and a heat-conducting base fixed to the ribs |
| CN201780024U (en) * | 2010-08-27 | 2011-03-30 | 江苏恒丰波纹管有限公司 | Fin-and-tube heat exchanger |
| CN203604345U (en) * | 2013-12-03 | 2014-05-21 | 奉化市仁和欣液压设备有限公司 | Cooler |
| CN105738410A (en) * | 2016-02-29 | 2016-07-06 | 华南理工大学 | Nano fluid-enhanced heat transfer characteristic test system with low surface energy evaporator |
| CN106311110A (en) * | 2016-09-23 | 2017-01-11 | 中国科学院上海高等研究院 | Microchannel plate with fractal structure, photocatalytic reactor and application thereof |
| CN106311108A (en) * | 2016-09-23 | 2017-01-11 | 中国科学院上海高等研究院 | Microreactor with replaceable bed layer and application of microreactor |
| CN106964306A (en) * | 2017-05-12 | 2017-07-21 | 中国科学院上海高等研究院 | Microchannel plate, gas-liquid reactor and reaction system with point shape honeycomb |
| CN107261996A (en) * | 2016-04-08 | 2017-10-20 | 中国科学院大连化学物理研究所 | Microreactor and its application of a kind of metal with transparent plastic composite construction |
| CN206825905U (en) * | 2017-06-28 | 2018-01-02 | 四川湘邻科技有限公司 | A kind of female mould vacuum forming device |
| CN208302736U (en) * | 2018-03-06 | 2019-01-01 | 山东豪迈化工技术有限公司 | A kind of visual flowing microreactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9370760B2 (en) * | 2011-05-13 | 2016-06-21 | Hitachi, Ltd. | Microreactor for photoreactions |
-
2018
- 2018-03-06 CN CN201810184895.7A patent/CN110227397B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200536B1 (en) * | 1997-06-26 | 2001-03-13 | Battelle Memorial Institute | Active microchannel heat exchanger |
| JP2005203665A (en) * | 2004-01-19 | 2005-07-28 | Kiko Kagi Kofun Yugenkoshi | Heat dissipating module structure and manufacturing method therefor |
| DE202006002858U1 (en) * | 2006-02-23 | 2006-04-27 | Kuo, Hua-Shou, Tansui | Combination cooler module for cooling purposes comprises cooling ribs, heating tubes passing through the ribs and a heat-conducting base fixed to the ribs |
| CN201780024U (en) * | 2010-08-27 | 2011-03-30 | 江苏恒丰波纹管有限公司 | Fin-and-tube heat exchanger |
| CN203604345U (en) * | 2013-12-03 | 2014-05-21 | 奉化市仁和欣液压设备有限公司 | Cooler |
| CN105738410A (en) * | 2016-02-29 | 2016-07-06 | 华南理工大学 | Nano fluid-enhanced heat transfer characteristic test system with low surface energy evaporator |
| CN107261996A (en) * | 2016-04-08 | 2017-10-20 | 中国科学院大连化学物理研究所 | Microreactor and its application of a kind of metal with transparent plastic composite construction |
| CN106311110A (en) * | 2016-09-23 | 2017-01-11 | 中国科学院上海高等研究院 | Microchannel plate with fractal structure, photocatalytic reactor and application thereof |
| CN106311108A (en) * | 2016-09-23 | 2017-01-11 | 中国科学院上海高等研究院 | Microreactor with replaceable bed layer and application of microreactor |
| CN106964306A (en) * | 2017-05-12 | 2017-07-21 | 中国科学院上海高等研究院 | Microchannel plate, gas-liquid reactor and reaction system with point shape honeycomb |
| CN206825905U (en) * | 2017-06-28 | 2018-01-02 | 四川湘邻科技有限公司 | A kind of female mould vacuum forming device |
| CN208302736U (en) * | 2018-03-06 | 2019-01-01 | 山东豪迈化工技术有限公司 | A kind of visual flowing microreactor |
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|---|---|
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