CN106390883B - A kind of micro-fluid reactor - Google Patents
A kind of micro-fluid reactor Download PDFInfo
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- CN106390883B CN106390883B CN201610931483.6A CN201610931483A CN106390883B CN 106390883 B CN106390883 B CN 106390883B CN 201610931483 A CN201610931483 A CN 201610931483A CN 106390883 B CN106390883 B CN 106390883B
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- 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
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- 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
- B01J2219/00788—Three-dimensional assemblies, i.e. the reactor comprising a form other than a stack of plates
- B01J2219/00799—Cup-shaped
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- 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
- B01J2219/00889—Mixing
Abstract
The invention discloses a kind of micro-fluid reactors, including reaction channel, several continuous reaction chambers are equipped on reaction channel, the entrance of reaction chamber described at least one of which is connect with venturi passage, and the jet direction of corresponding venturi passage, it is equipped with venturi wall in the inlet inside of reaction chamber, makes to form buffering area between the entrance and venturi wall of reaction chamber from the fluid that venturi passage flows out, and shunt to both sides along venturi wall.It is buffered using Venturi tube structure and venturi wall, by the form of converging diverging, at the most narrow place of pipeline, dynamic head reaches maximum value, hydrostatic head reaches minimum value, entire shove will undergo pipe reductions process within the same time, and pressure also reduces in the same time, and then generate pressure difference, this pressure difference provides an external suction to fluid, flow dead zone when accelerating fluid mixing while reducing fluid flowing, and then realize the hybrid reaction strengthened, avoid reaction blind area from existing.
Description
Technical field
The present invention relates to micro-fluid reactor technical fields, especially the microreactor with Venturi tube structure.
Background technology
Micro-fluid reactor is miniature anti-between 10 to 3000 μm using the characteristic size of precision processing technology manufacture
Answer device.
The micro-of microreactor is not the appearance and size size for refering in particular to microreactor equipment；Nor referring to microreactor equipment
The yield of product is small；But indicate that the channel of process fluid is other in the micron-scale；Can include millions of thousands of in microreactor
Ten thousand minitype channel, therefore can also realize very high yield.
Microreactor is more much smaller than the size of conventional pipeline reactor, but microreactor is still intrinsically
A kind of pipeline reactor continuously flowed.Micro- reaction system generally includes the height such as to exchange heat, mix, separate, analyze and control
Integrated unit.Because it has the characteristics such as bigger serface, microresponse volume and unique laminar mass transfer, determine that it possesses
The incomparable excellent heat of conventional reactor, mass transfer and mixed performance.Good mass-transfer performance ensure that the quick of material
The raising of mixing, heat transfer efficiency makes reaction that can quickly carry out under isothermal conditions.
Microreactor has following advantage compared with traditional tank reactor：
1, accurately controlling for reaction condition may be implemented in the high coefficient of heat conduction；
2, millisecond or the incorporation time of microsecond received reduce the volume of reactor；
3, high-specific surface area increases reinforcing reaction process
4, conversion rate of products and yield are improved；
5, without enlarge-effect, middle-stage is reduced, shortens the process exploitation period；
6, good security performance；
7, use that is toxic, having solvent slop is largely reduced；
8, continuous production.
The microreactor structure of the prior art is as shown in Figure 1, be square duct, fluid by square duct mix anti-
It answers, is primarily present following several technical problems：
1, channel is single channel, and liquid holdup is small, and treating capacity is small, and pressure drop is big；
2, there is still a need for improvement for channel mixed effect；
3, there is mixing blind area in channel；
4, heat transfer effect cannot meet the needs of technique fast reaction.
How to seek that a kind of liquid holdup is big, and treating capacity is big, pressure drop is small, channel good mixing effect, no mixing blind area, heat exchange effect
The good microreactor of fruit becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
In view of this, the object of the present invention is to provide a kind of micro-fluid reactor, to solve the microreactor of the prior art
Channel mixed effect is poor, there is the problems such as mixing blind area.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution：
A kind of micro-fluid reactor, including reaction channel are equipped with several continuous reaction chambers on the reaction channel
The entrance of room, reaction chamber described at least one of which is connect with venturi passage, and the corresponding venturi passage is penetrated
Direction is flowed, venturi wall is equipped in the inlet inside of the reaction chamber, makes the fluid flowed out from the venturi passage in institute
It states and forms buffering area between the entrance of reaction chamber and the venturi wall, and shunted to both sides along the venturi wall.
Preferably, the surface that the venturi wall is just corresponding to the venturi passage is set as inner fovea part, makes fluid described
The buffering area is formed at inner fovea part.
Preferably, the minimum cross-sectional area between the venturi wall and the reaction chamber inner wall is less than the venturi
The area of section that channel is formed is that middle part is less than both ends, and fluid is made to be formed between the inner wall and the venturi wall of reaction chamber
Venturi effect.
Preferably, the inner fovea part of the venturi wall corresponds to the width on the surface of the venturi passage in the venturi wall
It spends and the ratio of the depth vertical with the surface is（3-10）：1.
Preferably, the reaction chamber is bilateral symmetry, and the entrance of reaction chamber is located in the reaction chamber
On heart line；
With or, the venturi wall is bilateral symmetry, and the outlet for just corresponding to the venturi passage is arranged in
On the center line of the reaction chamber.
Preferably, the venturi wall is equipped with several diversion trenches, enables the fluid of the buffering area along described
Diversion trench flows out；Preferably, the diversion trench is equipped at least two, is symmetrically distributed on the venturi wall.
Preferably, several first flow-disturbings are equipped in the channel between the venturi wall and the venturi passage
Block；Preferably, the first flow-disturbing block flows to angled linear distribution along with fluid；Preferably, the first flow-disturbing block
It is symmetricly set in the channel between the venturi wall and the venturi passage；Preferably, affiliated first flow-disturbing block submission
Forked distribution；Preferably, several described first flow-disturbing blocks are arranged symmetrically；Preferably, it the angle ranging from 30-90 degree.
Preferably, at least one second flow-disturbing block is equipped between the venturi wall and the outlet of the reaction chamber,
Preferably, the second flow-disturbing block is triangular in shape, and an apex angle of triangle be directed toward the reaction chamber outlet or
It is directed toward the venturi wall；Preferably, the second flow-disturbing block is downwardly extending and the venturi from the venturi wall
The integrally formed structure of wall.
Preferably, it is connected to by the venturi passage between continuous two reaction chambers, and described two reactions
The inlet inside of chamber is equipped with the venturi wall.
Preferably, the reaction channel is equipped at least two, and reaction channel is arranged side by side, and in two adjacent reactions
Side wall between chamber is equipped with mixed flow mouth, makes to be connected between two adjacent reaction chambers.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
The buffering area that the present invention is formed using venturi passage structure and venturi wall, passes through the shape of converging diverging
Formula, when fluid flows inside Venturi tube, at the most narrow place of pipeline, dynamic head, that is, velocity head reaches maximum value, and hydrostatic head is
Head reaches minimum value, and the speed of fluid rises because through flow cross section area reduces.Entire shove will be in same a period of time
Interior experience pipe reductions process, thus pressure also reduces in the same time.And then pressure difference is generated, this pressure difference is to fluid
Flow dead zone when one external suction being provided, fluid mixing is accelerated while reducing fluid flowing, and then realize the mixing strengthened
Reaction avoids reaction blind area and exists.
The specific implementation mode of the present invention is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the square duct structural schematic diagram of the prior art；
Fig. 2 is a kind of venturi reaction member structural schematic diagram of micro-fluid reactor of the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the reaction channel of micro-fluid reactor of the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the reaction channel of micro-fluid reactor of further embodiment of this invention；
Fig. 5 is the close-up schematic view of Fig. 4；
Fig. 6 A-Fig. 6 S are the venturi reaction channel structural schematic diagram of the micro-fluid reactor of the embodiment of the present invention（Wherein
Diversion trench band in 6P-6S is tapered）；
Fig. 7 is a kind of fluid velocity vectors schematic diagram of micro-fluid reactor of the embodiment of the present invention；
Fig. 8 is the square duct material mixed effect schematic diagram of the prior art；
Fig. 9 is a kind of material mixed effect schematic diagram of micro-fluid reactor of the embodiment of the present invention.
Wherein, 1, reaction chamber, 2, fluid inlet, 3, fluid outlet, 4 venturi passages, 5, venturi wall, 6, water conservancy diversion
Slot, 9, small venturi wall, 10, turbulence structure, 11, big second flow-disturbing block, 12, small first flow-disturbing block, 13, reaction channel, 14, single
Channel, 15, binary channels, 17, mixed flow mouth, 25, first fluid entrance, 26, second fluid entrance, 27, the third-largest part flow arrangement,
28, the small part flow arrangement of third, 29, the second largest part flow arrangement, the 30, second small part flow arrangement, the 31, first large shunt device, 32,
One small part flow arrangement, 33, four-way.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Firstly the need of pointing out, the embodiment of the present invention only discloses several preferred embodiments, should not be understood in pairs
The limitation that the present invention is implemented, protection scope of the present invention are still subject to claims disclosure of that.
As shown in Fig. 2, the embodiment of the invention discloses a kind of micro-fluid reactor, which includes reaction channel 13,
Several continuous reaction chambers 1 are equipped on reaction channel 13, the entrance and venturi of at least one of which reaction chamber 1 are logical
Road 4（Venturi passage is first to shrink the pipeline being then gradually expanded）Connection, and the jet direction of corresponding venturi passage 4,
It is equipped with venturi wall 5 in the inlet inside of reaction chamber 1, makes the fluid flowed out from venturi passage 4 in the entrance of reaction chamber 1
Buffering area is formed between the venturi wall 5, and is shunted to both sides along the venturi wall 5.Pass through the shape of converging diverging
Formula, when fluid flows inside Venturi tube, at the most narrow place of pipeline, dynamic head, that is, velocity head reaches maximum value, and hydrostatic head is
Head reaches minimum value, and the speed of fluid rises because through flow cross section area reduces.Entire shove will be in same a period of time
Interior experience pipe reductions process, thus pressure also reduces in the same time.And then pressure difference is generated, this pressure difference is to fluid
Flow dead zone when one external suction being provided, fluid mixing is accelerated while reducing fluid flowing, and then realize the mixing strengthened
Reaction avoids reaction blind area from existing, and additionally by the buffering area that setting venturi wall is formed, keeps material mixing more uniform.
As the preferred of above-described embodiment, the venturi wall 5 in above-described embodiment is just corresponding to the table of the venturi passage 4
Face is set as inner fovea part, and fluid is made to form buffering area at the inner fovea part.In use, fluid is passed through by being flowed out in venturi passage
It crosses after a Venturi effect mixed, forms buffering in the buffering area of the indent, after further being mixed to fluid,
Along inner fovea part to the edge flowing of venturi wall, and then realize the shunting to venturi wall both sides.Preferably, the present embodiment
In, the inner fovea part of venturi wall corresponds to the width on the surface of the venturi passage in the venturi wall and hangs down with the surface
The ratio of straight depth is（3-10）：1, preferably 5:1.The design of this ratio can preferably realize that the buffering of fluid is mixed
It is even, while the local pressure loss of fluid is smaller.The length of venturi wall is 0.1-20mm, width 0.1-20mm, length-width ratio
It is 0.1~10, the smooth setting in venturi wall upper surface, the setting of this angle and shape can reduce fluid mechanics in Wen Qiu
Local pressure loss on backing, pressure drop is small, and fluid is effectively ensured and is uniformly mixed.
In another embodiment of the invention, during the area of section formed between 1 inner wall of venturi wall 5 and reaction chamber is
Portion is less than both ends, and fluid is made to form Venturi effect between the inner wall and venturi wall 5 of reaction chamber 1.I.e. fluid via
The buffering of venturi wall upper surface buffering area mix and shunting after, between venturi wall and the inner wall of reaction chamber, due to
The area of section formed between venturi wall and reaction chamber inner wall is intermediate small, and both ends are big, and therefore, fluid is flowing through the channel
When, it can also undergo contraction-as venturi passage and expand this form, produce pressure difference, and then realize secondary
Strengthen hybrid reaction process, be further ensured that the uniformly mixed and complete degree of reaction of fluid, avoids reaction blind area.
Preferably, reaction chamber 1 is bilateral symmetry, and the entrance of reaction chamber 1 is located at the center of the reaction chamber 1
On line；With or, the venturi wall 5 is bilateral symmetry, and the outlet for just corresponding to the venturi passage 4 is arranged in institute
On the center line for stating reaction chamber 1.The setting of above-mentioned 1 bilateral symmetry of reaction chamber is to ensure that fluid is reacting
Flowing, the mixing of the left and right sides of chamber are identical with response situation, ensure the consistency and uniformity of fluid reaction；Venturi wall
Installation position and bilateral symmetry, also for ensure fluid mixed in the buffering area that venturi wall is formed with, and
The flow and flow rate of two shuntings generated when shunting is consistent, one for being further ensured that the uniformity of fluid mixing and reacting
Cause property, while flow dead zone when fluid being avoided to flow.
As the preferred of any of the above-described embodiment, in micro-fluid reactor, venturi wall 5 is equipped with several diversion trenches 6,
The fluid of the buffering area is set to be flowed out along the diversion trench 6；Preferably, the diversion trench 6 is equipped at least two, symmetrically
It is distributed on the venturi wall 5.Venturi wall 5 is separated into several small venturi walls 9, the setting of diversion trench 6 by diversion trench 6
Pressure drop can be made to reduce, material mixed effect is more preferable.Diversion trench can be arranged to the shape that intermediate cross-section is less than two end sections simultaneously
Shape generates Venturi effect so that fluid when flowing through diversion trench, also generates the state of contraction-expansion.Further protect
Exhibit material be uniformly mixed and the reaction was complete.Diversion trench can mainly generate fluid certain jet-action, or reinforce
The effect of fluid mixing；The fluid that this practical channel is passed through is not very much.
In order to further increase the mixability of fluid mechanics, reaction dead angle is avoided, it can also be in reaction chamber 1
Turbulence structure 10 is set, for example, be equipped in channel between the venturi wall 5 and the venturi passage 4 several the
One flow-disturbing block 12；Preferably, the first flow-disturbing block 12 flows to angled linear distribution along with fluid；Preferably, described
First flow-disturbing block is symmetricly set in the channel between the venturi wall and the venturi passage；Preferably, described first
The cross-shaped distribution of flow-disturbing block；Preferably, several described first flow-disturbing blocks are arranged symmetrically；Preferably, it the angle ranging from 30-90
Degree.First flow-disturbing block 12 can be small triangular structure, multiple small triangular pitch in reaction chamber, further to fluid into
Row flow-disturbing mixes.The distribution shape of first flow-disturbing block does not require specifically, and wedge angle position, can be flexible nor fixed
Adjustment.Another turbulence structure is that at least one second is equipped between venturi wall 5 and the outlet of the reaction chamber 1
Flow-disturbing block 11, it is preferable that the second flow-disturbing block 11 is triangular in shape, and an apex angle of triangle is directed toward the reaction chamber
Outlet or be directed toward the venturi wall, need exist for explaining, put orientation has following influence to flow-disturbing effect：Such as
Fig. 6 A citings, the triangle that the trigonometric ratio just put is put upside down is good, and the triangle just put can again be formed at two angles of triangular base
Venturi passage structure；Certainly, if 5 structure of venturi wall rotates at an angle, the second flow-disturbing block 11 can also rotate one
Determine angle or changes structure to reach best flow-disturbing effect；Second flow-disturbing block 11 can be multiple；Preferably, second flow-disturbing
Block 11 is downwardly extending and the integrally formed structure of venturi wall from the venturi wall.The flow-disturbing block of this structure can
It is existed simultaneously with the flow-disturbing block with a upper structure, flow-disturbing mixed effect is made to be enhanced.
Specifically, in the microreactor that the embodiment of the present invention is provided, venturi wall 5 and turbulence structure 10 and its
Position in reaction chamber 1 can carry out a variety of adjustment, including being not limited to a variety of venturi as shown in Fig. 6 A- Fig. 6 N
Wall and turbulence structure installation position, may be incorporated for the present invention, wherein Fig. 6 B, Fig. 6 I, Fig. 6 K structure be venturi wall 5 with
Fig. 6 C, the case where turbulence structure 10 is combined together Fig. 6 D, Fig. 6 E, Fig. 6 F, Fig. 6 H, Fig. 6 J, Fig. 6 M, belongs to multiple small literary mounds
The case where backing is combined, Fig. 6 D, Fig. 6 E, Fig. 6 F, Fig. 6 H, Fig. 6 G, Fig. 6 I, Fig. 6 J, Fig. 6 N belong to have to be disturbed by second
The case where flowing the turbulence structure for the X-shaped structure that block is formed.It, can be according to mobility status of reaction mass etc. to text when actual setting
Mound backing and turbulence structure are specifically arranged, and are uniformly mixed with material, and it is standard not stay reaction blind area in reaction chamber.
In the another preferred embodiment of the present invention, connected by the venturi passage 4 between continuous two reaction chambers 1
It is logical, and the inlet inside of described two reaction chambers 1 is equipped with the venturi wall 5.The similar sugar of the reaction channel 13 of formation
The structure of cucurbit, fluid pass sequentially through the Venturi effect and venturi wall 5 of venturi passage 4 in reaction channel 13
Buffering effect, then by the gap between venturi wall 5 and 1 inner wall of reaction chamber, which may be that middle part is small, and two
Big structure is held, also generates Venturi effect simultaneously, fluid is repeated in above-mentioned structure, fluid in continuous reaction chamber
Good mixing effect avoids the generation at reaction dead angle.
In the another preferred embodiment of the present invention, the reaction channel 13 of micro-fluid reactor is equipped at least two, and reaction is logical
Road 13 is arranged side by side, and mixed flow mouth 17 is equipped on the side wall between two adjacent reaction chambers 1, keeps adjacent two anti-
It answers and is connected between chamber.
In above-described embodiment, reaction channel 13 may include single channel 14, binary channels 15 and/or multichannel；Wherein, as schemed
Shown in 3, single channel 14 is sequentially connected reaction chamber 1, in adjacent reaction chamber, the fluid outlet 3 of previous reaction chamber
The fluid inlet 2 of latter reaction chamber is connected to by venturi passage 4, which can be arranged two or more fluids and enter
Mouth 2, respectively enters different fluid mechanics, and fluid inlet 2 shown in Fig. 3 includes first fluid entrance 25 and second fluid entrance
26, i.e. fluid mechanics are entered by two fluid inlets 2 respectively, and the reaction chamber and venturi being then linked in sequence successively are logical
Hybrid reaction is carried out in road, and after the completion of reaction, micro-fluid reactor is discharged by fluid outlet 3.
Binary channels 15 and multichannel be required to realize by part flow arrangement, and specifically, binary channels 15 needs part flow arrangement to have
There are two shunting outlet, two single channels 14 are separately connected two shunting outlets, form two list channels 14 of laid out in parallel；It is more
Channel needs part flow arrangement to be exported with multiple shuntings, and multiple single channels 14 are separately connected multiple shunting outlets；Preferably, described
Mixed flow mouth 17 is additionally provided between binary channels 15 and multichannel, the mixed flow mouth 17 will be connected from the adjacent of different shunting outlets
The single channel 14 is connected to；It is further preferred that 17 length of mixed flow mouth is 0.002mm-6mm, width 0.002mm-
3mm。
In above-described embodiment, according to the needs of reaction mass, reaction channel can be arranged to individual single channel, bilateral
Road or multichannel, can also be by three kinds of channel cross-references, i.e. a reaction channel includes in single channel, binary channels and multichannel
Two or more, can in a reaction channel be used only Fig. 6 A- Fig. 6 N in any one, can also as shown in Fig. 6 O,
Or the structure in 6A- Fig. 6 N is arbitrarily freely combined, i.e., by the literary mound of venturi wall and turbulence structure with different structure
In reaction member be connected in series in a reaction channel.
Embodiment 1
Micro-fluid reactor disclosed in the present embodiment, in the design process, more consideration is given to the shapes of process fluid flowing
Formula and the reasonability of fluid flowing.Such as the generation of mixing blind area can cause reacting material concentration local distribution uneven, and then lead
Cause the increase of amount of by-products.Improve before fluid in channel it is existing mixing blind area as shown in Figure 1, square block back side black
Region is unfavorable for mixing there are apparent flow dead zone.Fluid flows in the reaction channel of the micro passage reaction of the present embodiment
It is substantially not present flow dead zone in the process, mixing turbulating effect is good, as shown in Figure 7.Fig. 7 is the fluid of the channel form of the present invention
Speed vector figure；Left-hand digit indicates the velocity vector of fluid in figure（Unit m/s）.From speed vector figure as it can be seen that two kinds of streams
Body is fed under 1m/s speed, and at Venturi tube structure, speed is improved, and reaction chamber, which is believed that, to be fully used,
Substantially there is no flow dead zone.Moreover, in Venturi tube structure expansion segment, because high-velocity fluid sprays, enhances fluid turbulent degree, can have
Effect improves mixed effect, to be conducive to react abundant progress.Calculating simulation is the results show that reach identical mixed effect, just
The mixing length that shape piece needs is longer, required mixing velocity bigger, and the micro-fluid reactor of the present embodiment then realizes quickly
The uniform mixing of two kinds of fluids.
Embodiment 2
Micro-fluid reactor disclosed in the present embodiment has fully considered mixing efficiency in the design process.Fig. 8 is existing
There is a mixed effect figure of the rectangular micro passage reaction of technology, left-hand digit indicates the volume fraction values of fluid in figure.With two
For kind of liquid material hybrid reaction, with material 2, volume fraction explains mixed effect in the channel, material 1 in the channel certain
The volume fraction at place is 1 to subtract volume fraction shared by material 2.0 indicates that the volume fraction of somewhere material 2 is 0；1 indicates certain
The volume fraction for locating material 2 is 100%.For square duct, material needs to realize by 12 pieces or more of reaction chamber combination
It is thoroughly mixed, also, the effect of square duct structure enhancing turbulent extent is not good enough.
Fig. 9 is the mixed effect figure of the micro-fluid reactor of the present invention, and left-hand digit indicates the volume point of fluid in figure
Numerical value.By taking two kinds of liquid material hybrid reactions as an example, with material 2, volume fraction explains that mixed effect, material 1 exist in the channel
The volume fraction in somewhere is 1 to subtract volume fraction shared by material 2 in channel.0 indicates that the volume fraction of somewhere material 2 is 0；
1 indicates that the volume fraction of somewhere material 2 is 100%.For square duct, material takes around to be combined i.e. by 9 pieces of reaction chamber
It can be achieved to be thoroughly mixed.Moreover, mixability already exceed side of the new tunnel structure type of the present invention in the 4th deblocking reaction chamber
Mixability of the shape channel in the 10th deblocking reaction chamber.Venturi tube structure makes fluid momentum in flow process constantly become
To change, fluid, which also takes out due to the partial velocity raising in necking down in expansion, now sprays trend, and turbulent extent is high, good mixing effect,
The hybrid reaction time is shortened, compared with rectangular micro passage reaction, substantially increases mixing efficiency.
Embodiment 3
Such as Fig. 4, shown in Fig. 5, micro-fluid reactor provided in this embodiment, material is respectively by first fluid entrance and second
Fluid inlet enters, and is at the beginning single channel 14, subsequently becomes binary channels 15, eventually become four-way 33.Lead at fluid inlet
The third-largest part flow arrangement 27 is crossed to carry out entering single channel 14 after shunting mixing, at binary channels 15 using the small part flow arrangement of third 28 into
Row shunting mixing first uses the first large shunt device 31 and the first small part flow arrangement 32 to split into two flow paths in four-way 33,
Then at turning, a flow path is mixed into using the second small part flow arrangement 30 and the second largest part flow arrangement 29.33 He of four-way
In two channels 15, mixed flow mouth 17 is opened up between the two neighboring channel of laid out in parallel, the flow velocity to ensure every channel is identical, mixes
Head piece 17 is arranged multiple, it is preferable that is connected to two adjacent core reaction chambers using mixed flow channel.Mixed flow mouth or mixed flow channel
Length between 0.002mm-6mm, width is between 0.002mm-3mm.
Micro-fluid reactor disclosed in the embodiment of the present invention, reaction medium can be gas, liquid or dispersive medium, can
Mixed in reaction channel for reactant, disperse, emulsification, the physical reactions such as suspension, can be used for various chemistry
Reaction, such as oxidation, reduction, substitution, elimination, addition, ligand exchange, metal exchange, ion exchange, polymerization, alkylation, de- alkyl
Change, nitrification, peroxidating, sulfoxidation, epoxidation, ammoxidation, hydrogenation, dehydrogenation, organometallic reaction, noble metal react, are homogeneous
Catalyst reaction, thiocarbonyl group, alkoxylate, halogenation, dehydrohalogenation, dehalogenation, hydroformylation, carboxylation, takes off carbonylation
Carboxylic, amination, arylation, peptide coupling, aldol condensation, cyclizative condensation, dehydrocyclization, esterification, amidation, heterocyclic synthesis, dehydration, alcohol
Solution, hydrolysis, ammonolysis, etherificate, enzymatic synthesis, assimilation, saponification, isomerization, quaternary ammoniated, formylated, phase transfer reaction, silylation,
Nitrile synthesis, phosphorylation, ozone decomposed, nitrine chemical reaction, double decomposition, hydrosilylation, coupling reaction and enzyme reaction.
According to different reaction requirements, reaction channel selects different materials, if metal material is more resistant to high pressure, SiC materials
More resistant to acid and alkali corrosion.Specifically, it can be metal material stainless steel：Such as 304 stainless steels, 316 stainless steels, 316L stainless steels, double
Xiang Gang, super austenitic stainless steel, super-duplex stainless steel etc.；It can be nickel-base alloy：As Hastelloy, monel metal,
Inco nickel etc.；It can be special non-ferrous metal：Such as titanium, tantalum, niobium, zirconium；It may be non-metallic material：Such as SiC, Ya Ke
Power, quartz etc.；It can even is that the combination of different materials.
In conclusion the micro-fluid reactor of the carried offer of the embodiment of the present invention at least has such as compared with prior art
Lower advantage：
（1）Liquid holdup increases, and is 10-40 times of the prior art；
（2）Treating capacity increases, and is 20-60 times of the prior art；
（3）Pressure drop reduces, and becomes the one third of the prior art to 2/3rds；
（4）Material mixed effect is more preferable, and mixing efficiency is 1.5 times or more of the prior art；
（5）Mixing blind area when liquid flowing, good mixing effect are essentially eliminated, reaction yield improves；
（6）Heat transfer boundary condition is improved, heat transfer effect higher controls temperature more accurate.
It will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be freely
Combination, superposition.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of micro-fluid reactor, including reaction channel are equipped with several continuous reaction chambers on the reaction channel,
It is characterized in that, the entrance of reaction chamber described at least one of which is connect with venturi passage, and the corresponding venturi
The jet direction in channel is equipped with venturi wall in the inlet inside of the reaction chamber, makes to flow out from the venturi passage
Fluid forms buffering area between the entrance and the venturi wall of the reaction chamber, and along the venturi wall to both sides
Shunting, the surface that the venturi wall corresponds to the venturi passage are equipped with inner fovea part, fluid are made to be formed at the inner fovea part
The buffering area.
2. a kind of micro-fluid reactor according to claim 1, which is characterized in that the venturi wall and the reaction chamber
Circulation passage is formed between chamber interior walls, which first reduces along the area of section of the flow direction of fluid expands afterwards, makes fluid
Venturi effect is formed between the inner wall and the venturi wall of reaction chamber.
3. a kind of micro-fluid reactor according to claim 1, which is characterized in that the inner fovea part of the venturi wall is in institute
State that venturi wall corresponds to the width on surface of the venturi passage and the ratio of the depth vertical with the surface is（3-10）：
1。
4. a kind of micro-fluid reactor according to one of claim 1-3, which is characterized in that the reaction chamber is symmetrical
The entrance of structure, reaction chamber is located on the center line of the reaction chamber；
And/or the venturi wall is symmetrical structure, and the outlet of the corresponding venturi passage is arranged in the reaction chamber
On the center line of room.
5. a kind of micro-fluid reactor according to claim 1, which is characterized in that the venturi wall is equipped with several
Diversion trench enables the fluid of the buffering area to be flowed out along the diversion trench；The diversion trench is equipped at least two, symmetrically divides
Cloth is on the venturi wall.
6. a kind of micro-fluid reactor according to one of claim 1-3, which is characterized in that in the venturi wall and institute
It states and is equipped with several the first flow-disturbing blocks in the channel between venturi passage.
7. a kind of micro-fluid reactor according to claim 6, which is characterized in that the first flow-disturbing block along with fluid
Flow to angled linear distribution；And/or the first flow-disturbing block is symmetricly set on the venturi wall and leads to the venturi
In channel between road；And/or the linear cross-like distribution of the first flow-disturbing block；And/or several described first flow-disturbings
Block is arranged symmetrically.
8. a kind of micro-fluid reactor according to one of claim 1-3, which is characterized in that in the venturi wall and institute
It states and is equipped at least one second flow-disturbing block between the outlet of reaction chamber.
9. a kind of micro-fluid reactor according to claim 8, which is characterized in that the second flow-disturbing block is triangular in shape,
And an apex angle of triangle is directed toward the outlet of the reaction chamber or is directed toward the venturi wall；And/or described second
Flow-disturbing block is downwardly extending and the integrally formed structure of venturi wall from the venturi wall.
10. a kind of micro-fluid reactor according to one of claim 1-3, which is characterized in that continuous two reaction chambers
It is connected to by the venturi passage between room, and the inlet inside of described two reaction chambers is equipped with the venturi
Wall.
11. a kind of micro-fluid reactor according to one of claim 1-3, which is characterized in that the reaction channel is equipped with
At least two, reaction channel is arranged side by side, and mixed flow mouth is equipped on the side wall between two adjacent reaction chambers, makes phase
It is connected between two adjacent reaction chambers.
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| CN107224950A (en) * | 2017-07-14 | 2017-10-03 | 杭州沈氏节能科技股份有限公司 | Microreactor |
| CN107261998A (en) * | 2017-08-07 | 2017-10-20 | 衢州市膜力环保科技有限公司 | A kind of micro passage reaction |
| CN109425252B (en) * | 2017-08-30 | 2020-12-08 | 青岛钛钽铌锆连续化反应器有限公司 | Multifunctional slit fluid micro-channel reaction mixed heat exchange unit |
| CN109939625A (en) * | 2017-12-20 | 2019-06-28 | 南京正源搪瓷设备制造有限公司 | A kind of microreactor reaction plate of off-centre operation structure |
| CN110124592B (en) * | 2018-02-09 | 2022-05-27 | 上海璨谊生物科技有限公司 | Micro-reactor |
| BE1026910B1 (en) * | 2018-12-21 | 2020-07-22 | Pharmafluidics N V | Chemical reactors |
| CN109925989B (en) * | 2019-03-29 | 2024-03-12 | 武汉强丰新特科技有限公司 | Liquid phase reaction device |
| CN110090607A (en) * | 2019-05-16 | 2019-08-06 | 青岛三易安化工设备有限公司 | A kind of microreactor |
| CN110652949A (en) * | 2019-10-30 | 2020-01-07 | 上海弗鲁克科技发展有限公司 | Micro-reactor |
| CN111001348A (en) * | 2019-11-27 | 2020-04-14 | 华东师范大学 | Multi-unit mixer |
| CN113769677B (en) * | 2021-10-22 | 2022-10-28 | 西安交通大学 | Integrated micro-channel supercritical hydrothermal synthesis reactor capable of realizing accurate control of reaction time |
| CN114130326A (en) * | 2021-12-06 | 2022-03-04 | 山东科加工业技术研究院有限公司 | Micro-channel reactor |
| CN114452874B (en) * | 2022-01-27 | 2023-03-28 | 广东省科学院生物与医学工程研究所 | Preparation method of flexible micro mixer |
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| CN206454622U (en) * | 2016-10-31 | 2017-09-01 | 山东豪迈化工技术有限公司 | A kind of micro-fluid reactor |
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