CN206240456U - A kind of microreactor - Google Patents

Abstract

The utility model discloses a kind of microreactor, including reaction channel, reaction channel is provided with least two reaction chambers, wherein：The outlet of the first reaction chamber of upstream is connected with the entrance of second reaction chamber in downstream, the outlet of the first reaction chamber is connected with the entrance of the second reaction chamber by fluidic channel, fluidic channel includes that the exit direction of fluid in one section of uiform section passage, and correspondence fluidic channel is provided with recoil structure in the second reaction chamber.Fluid of the present utility model prismatic fluidic channel Upstream section realize accelerate and the uiform section fluidic channel section maintain and transmit the high-velocity fluid, prevent accelerate after high-velocity fluid by quickly unload speed, improve fluid jet impulse effect, improve fluid the abundant degree of mixing, in fluidic channel exit correspondence recoil structure, reverse impact is carried out to high-velocity fluid, it is combined with recoil by high-speed jet, it is quick to change flow direction, bring more preferable mixed effect.

Description

A kind of microreactor

Technical field

The utility model is related to consersion unit technical field, and specifically one kind is applied makes in chemical industry, medicine and other fields Microreactor, makes reaction medium to be sufficiently mixed in the reaction channel of microreactor and carry out physical reactions or chemistry instead Should.

Background technology

Microreactor, refers to the microreactor using the manufacture of the means such as such as precision processing technology, and its characteristic size is led to Often between 10 to 3000 μm.As understood by those skilled in the art, the micro-of microreactor is not to refer in particular to microreactor The appearance and size of equipment is small, nor referring to that the yield of microreactor device product is small, but represents process fluid (reaction medium) Reaction channel micron level (other to more to grade), i.e. reaction channel be minisize reaction passage.Can be with microreactor Include millions of such minisize reaction passage, therefore can also realize yield very high.

Microreactor is still more much smaller than the size of conventional pipeline reactor, but microreactor is intrinsically It is still a kind of pipeline reactor of continuous flowing.Micro- reaction system can generally include heat exchange, mixing, separate, analyzes and control The height integrated units such as system.For microreactor, because the laminar flow for possessing bigger serface, microresponse volume and uniqueness is passed The characteristics such as matter, determine that it possesses the incomparable excellent heat of conventional reactor, mass transfer and mixed performance.Good mass transfer The performance guarantee quick mixing of material, the raising of heat transfer efficiency then enables reaction fast reaction under isothermal conditions.

" microfluidic device that process is strengthened " entitled disclosed in CN101873890B, it uses multiple successive chambers, And further disclose " each in multiple successive chambers immediately follows has another chamber in the chamber in succession, and Also include the outlet for becoming narrow gradually and segmentation changed course wall, the outlet for becoming narrow gradually forms the corresponding of the successive chamber The import ... for narrowing ".Above-mentioned design, using the import for becoming narrow gradually during realizing that fluid mixes, is only capable of by dividing The effect of stream and change flow direction realizes that fluid mixes.Above-mentioned design the disadvantage is that, the change in flow of fluid is not obvious in chamber, Can not be changing fluid velocity and by way of buffering is combined realizing the mixing of fluid.

Utility model content

For the above-mentioned present situation of prior art, main purpose of the present utility model is to provide a kind of microreactor, is passed through Jet realizes that fluid quickly mixes shunting with the mode that recoil is combined, and flow velocity becomes in solving the chamber of prior art microreactor Change little, the not good problem of mixed effect.

Above-mentioned purpose is achieved through the following technical solutions：

A kind of microreactor, including reaction channel, the reaction channel are provided with least two reaction chambers, wherein：On The outlet of the first reaction chamber of trip is connected with the entrance of second reaction chamber in downstream, the outlet of the first reaction chamber and second Connected by fluidic channel between the entrance of reaction chamber, the fluidic channel includes one section of uiform section passage, and correspondence institute The exit direction for stating fluid in fluidic channel is provided with recoil structure in the second reaction chamber, makes to be ejected from the fluidic channel Fluid change when by recoil structure flow direction and along recoil structure shunting turn at least two bursts tributaries, it is preferable that it is described Exit direction deflection at least an angle of 90 degrees of at least two strands of the flow direction relative to fluid in the fluidic channel in tributary, it is preferable that Collect in the exit of the second reaction chamber in the tributary.

Preferably, relational expression L=4S~10S is met between the length L and cross-sectional area S of the uiform section passage, it is excellent Select L=6S~8S.

Preferably, the area of the entrance of second reaction chamber is less than between the entrance and the recoil structure and forms logical Road in the minimum cross-sectional area perpendicular to fluid flow direction, and less than the recoil structure and second reaction chamber Passage is formed between the wall of side in the minimum cross-sectional area perpendicular to fluid flow direction.

Preferably, the recoil structure is V-arrangement or arc, and the concave part of the recoil structure corresponds to the jet The exit direction of passage；

Preferably, when the recoil structure is V-arrangement, the opening angle α scopes of the recoil structure are 30-160 degree, preferably It is 60-120 degree, more preferably 75,85 or 100 degree.

Preferably, the free end of two alar parts of the recoil structure is respectively equipped with can play flow-disturbing and extend fluid row The projection of Cheng Zuoyong.

Preferably, turbulence structure is provided between the outlet of the recoil structure and the second reaction chamber and/or shunting is right Rush structure；

Preferably, the turbulence structure is flow-disturbing block, it is further preferred that the flow-disturbing block is under the recoil structure Fang Yanshen is formed and the integrally formed structure of the recoil structure；

Preferably, the shunting liquidates, and to be at least one pair of symmetrical relative to the center line of the uiform section passage and is in for structure The flow deflector that V-arrangement is set, retains opening and is open towards second reaction chamber between the tip of paired two flow deflectors Outlet；When the flow deflector is provided with more than two pairs, the A/F between the flow deflector of upstream is less than positioned at downstream Flow deflector between A/F；Preferably, the flow deflector is straight piece or arc-like sheet.

It is further preferred that the flow-disturbing block is located at the lower section of the opening of the flow deflector.

Preferably, the V-shaped angle of sidewall shrink in the exit of second reaction chamber；

Preferably, the opening angle β scopes at the V-type angle are 30-160 degree, preferably 60-120 degree, are more preferably 90 Degree.

Preferably, at least partly the side wall of second reaction chamber is straight wall；Preferably, second reaction chamber The side wall of both sides is parallel.

Preferably, the reaction channel includes be arranged side by side at least two, and at least two reaction channel is corresponding Common chamber side wall between reaction chamber.

Preferably, connected by mixed flow mouthful between adjacent reaction chamber side wall.

Preferably, along the flow direction of fluid, the upper end level of the mixed flow mouthful is high higher than the lower end of the recoil structure Degree.

The microreactor that the utility model is provided, in prismatic fluidic channel upstream end, (cross section of fluid channel is accumulated gradually fluid Reduce) section realize accelerate and the uiform section fluidic channel section maintain and transmit the high-velocity fluid, can effectively prevent accelerate after High-velocity fluid be directly entered the big flow channel space in downstream so as to reduction of speed, do not have the effect of jet impulse and fluid cannot be improved Hybrid reaction degree, prevents the high-velocity fluid after accelerating by speed of unloading quickly, improves the effect of the jet impulse of fluid, improves stream The abundant degree of mixing of body, in fluidic channel exit correspondence recoil structure, realizes the recoil to fluidic channel high-velocity fluid, leads to Cross high-speed jet to be combined with recoil, bring more preferable mixed effect, and and then convection current body shunted, promote Jie in fluid Matter is fully reacted.

Further, microreactor of the present utility model is also ensured in micro- reaction channel in process fluid flow substantially not There is flow dead, mixing turbulence effects are significantly improved, so as to the uniform mixing of for example two or more fluids can be realized quickly.

Brief description of the drawings

Hereinafter with reference to accompanying drawing to being described according to the preferred embodiment of microreactor of the present utility model.In figure：

Fig. 1 is the structural representation of microreactor described in the utility model；

Fig. 2 is a kind of close-up schematic view at A in Fig. 1；

Fig. 3 is another close-up schematic view at A in Fig. 1；

Fig. 4 is another close-up schematic view at A in Fig. 1；

Fig. 5 is another close-up schematic view at A in Fig. 1；

Fig. 6 is the rate of flow of fluid polar plot of microreactor described in the utility model.

In figure：

100th, the first reaction chamber；

200th, the second reaction chamber；201st, fluidic channel；202nd, recoil structure；203rd, projection；205th, side wall；206th, mixed flow Mouthful；207th, flow deflector；208th, flow-disturbing block；209th, entrance；210th, export.

Specific embodiment

Further to illustrate that the utility model is to reach technological means and effect that predetermined utility model purpose is taken, Below in conjunction with preferred embodiment, to foundation the utility model proposes lateral plate component and air-conditioner outdoor unit specific embodiment, spy Levy and its effect, describe in detail as follows.

For the aforesaid drawbacks of prior art, the utility model is changed to micro- reaction channel of microreactor first Enter, it is proposed that a kind of new microreactor.

The microreactor has micro- reaction channel, and reaction medium (such as gas, liquid or disperse) can be Physical reactions (mixing, disperse, emulsification, suspension etc.) are carried out in the reaction channel and/or chemical reaction (is such as aoxidized；Also It is former；Substitution；Eliminate；Addition；Ligand exchange；In particular metal exchange and ion exchange are polymerized；Alkylation；De- alkyl Change；Nitrification；Peroxidating；Sulfoxidation；Epoxidation；Ammoxidation；Hydrogenation；Dehydrogenation；Organometallic reaction；Noble metal reaction/homogeneous Catalyst reaction；Carbonylation；Thiocarbonyl group；Alkoxylate；Halogenation；Dehydrohalogenation；Dehalogenation；Hydroformylation；Carboxylation；It is de- Carboxylic；Amination；Arylation；Peptide is coupled；Aldol condensation；Cyclizative condensation；Dehydrocyclization；Esterification；Amidatioon；Heterocyclic synthesis；Dehydration；Alcohol Solution；Hydrolysis；Ammonolysis；Etherificate；Enzymatic synthesis；Assimilation；Saponification；Isomerization；It is quaternary ammoniated；Formylated；Phase transfer reaction；Silylation； Nitrile synthesizes；Phosphorylation；Ozone decomposed；Nitrine chemically reacts；Double decomposition；Hydrosilylation；Coupling reaction and enzyme reaction etc.).

Embodiment 1

As shown in figures 1 to 6, the utility model embodiment provides a kind of microreactor, including reaction channel, and the reaction is led to Road is provided with least two continuous reaction chambers, wherein：The outlet of the first reaction chamber 100 of upstream is anti-with the second of downstream The entrance of chamber 200 is answered to connect, what is passed through between the outlet of the first reaction chamber 100 and the entrance of the second reaction chamber 200 penetrates Circulation road 201 is connected, and the fluidic channel includes one section of uiform section passage, and corresponds to the outgoing side of the fluidic channel 201 Recoil structure 202 is provided with the second reaction chamber 200, makes the fluid ejected from the fluidic channel 201 by anti- Change flow direction when rushing structure 202 and turn into two bursts of tributaries along the shunting of recoil structure 202.Preferably, at least two in the tributary Relative to the exit direction deflection at least an angle of 90 degrees of fluid in the fluidic channel, further, the tributary exists the flow direction of stock Collect at the outlet 210 of the second reaction chamber.

Velocity vector figure as shown in Figure 6, the flow velocity ＞ first area B (greens of the first area A (red area) in figure Region) the region C (blue region) of flow velocity ＞ the 3rd flow velocity.Fluid-mixing is entering incident flow by the first reaction chamber 100 During passage 201, understand that the flow velocity of fluid can increase based on Bernoulli equation；By after fluidic channel 201, flow velocity can be much larger than The flow velocity of other positions in second reaction chamber 200, and recoil effect is formed at the recoil structure 202, it is quick to change Flow direction, promotes being sufficiently mixed for fluid-mixing.With in the prior art, directly will " outlet for becoming narrow gradually forms successive The entrance for narrowing of chamber " is compared, and the flow velocity of fluid-mixing is improved using prismatic fluidic channel, can be more beneficial for promoting Make the mixing of fluid-mixing, the mixed effect than prior art is more preferable.

Fluid-mixing converges after being shunted by the recoil structure 202 at the outlet 210 of the second reaction chamber 200 Collection, is mixed, so as to be further ensured that the mixed effect of microreactor again during collecting.

Understanding based on those skilled in the art, can be a uiform section by the global design of the fluidic channel 201 Passage a, it is also possible to part for the fluidic channel 201 is designed as uiform section passage, and is designed as in other parts non-etc. Cross-sectional passage.

Preferably, relational expression L=4S~10S is met between the length L and cross-sectional area S of the uiform section passage, it is excellent L=6S~8S is selected, so that the uiform section passage forms a long and narrow passage construction.The length of uiform section passage is more long, dimension Hold (protect speed) and transmit the effect of high-velocity fluid more preferably, and the cross-sectional area of uiform section passage is smaller, the flow velocity of its jet is got over Height, so that the jet effect for producing is more preferable.The shape of cross section of uiform section passage can be the rules such as rectangle, circle, ellipse Shape, or irregular shape.The length and shape of cross section of uiform section passage, those skilled in the art can be with root It is adjusted the need for according to use.

The effect of uiform section passage is that the speed of the fluid that will be accelerated to high speed is maintained or kept and transmitted at a high speed In fluid to downstream heavy in section passage, prevent high-velocity fluid speed from quickly reducing, so as to be conducive to maintaining fluid in long and narrow sky Interior flow velocity is relative at the recoil structure that relatively high speed fluid-mixing enters in the second reaction chamber 200 in fluidic channel The fluid-mixing of low speed, such that it is able to further promote being sufficiently mixed for fluid-mixing.

Embodiment 2

Preferably, the area of the entrance 209 of second reaction chamber 200 is less than the entrance 209 and the recoil structure Between 202 formed passage in the minimum cross-sectional area perpendicular to fluid flow direction, and less than the recoil structure with it is described Passage is formed between the side wall of the second reaction chamber in the minimum cross-sectional area perpendicular to fluid flow direction.

The area of the entrance of second reaction chamber 200, determines the size of impulsive force, and determines recoil structure 202 Preceding cyclonic effect, it is preferable that passage is formed between the entrance and the recoil structure 202 perpendicular to fluid flow direction Minimum cross-sectional area when being 1-5 times of inlet area of the second reaction chamber, resistance is minimum, forms whirlpool fully, reaches more Good mixed effect, and residence time of the fluid before recoil structure is increased to the full extent.

Passage is formed between the side wall of the recoil structure 202 and second reaction chamber 200 perpendicular to fluid stream The minimum cross-sectional area in dynamic direction determines circulation and fluid resistance, and the minimum cross-sectional area is second reaction chamber At 1-2 times of the area of 200 entrance, fluid resistance, the size for forming whirlpool and whirlpool retention time are most reasonable.

From the high-velocity fluid that the entrance of second reaction chamber 200 enters inside the second reaction chamber, in entrance 209 Position reduces speed now, and ensures the rate of flow of fluid of the flow velocity below entry position of the fluid of the position beyond entrance, so that Fluid is conducive to be sufficiently mixed inside the second reaction chamber 200.

Preferably, the recoil structure 202 is V-arrangement or arc, and the concave part of the recoil structure 202 corresponds to institute The exit direction of fluidic channel is stated, the fluid projected from the fluidic channel is previously formed vortex in the recoil structure 202；

Preferably, when the recoil structure is V-arrangement, the opening angle α scopes of the recoil structure are 30-160 degree, preferably It is 60-120 degree, more preferably 90 degree.

Preferably, the top of two free ends of alar part of the recoil structure is respectively equipped with can play flow-disturbing and extend The projection 203 of fluid travel distance effect, projection 203 plays barrier effect, forces fluid to change flow direction before projection 203 to fluid, So as to play a part of flow-disturbing and extend fluid travel distance.The flow-disturbing effect of projection 203 is embodied in and changes the direction that fluid advances, and promotees Fluid is mixed in bump position, and while fluid direction of advance is changed, also extend the stroke of fluid, so that Fluid can more fully mix.

Preferably, turbulence structure is provided between the outlet of the recoil structure and the second reaction chamber or the knot that liquidates is shunted Structure；

Preferably, the turbulence structure is flow-disturbing block 208, and the flow-disturbing block 208 uses circular, square or other shapes, It is further preferred that as shown in figure 3, the flow-disturbing block 208 extends to be formed and the recoil from the lower section of the recoil structure 202 The structure of structural integrity shaping, is integrally formed using by flow-disturbing block and recoil structure, can make whole second reaction chamber 200 Simple structure, it is rationally distributed, it is easily worked and manufactures；Fluid forms continuous whirlpool in the both sides up and down of flow-disturbing block 208, promotes Fluid is mixed, and improves the sufficient degree of mixing, improves incidence.

Preferably, the shunting liquidates, and to be at least one pair of symmetrical relative to the center line of the uiform section passage and is in for structure The flow deflector 207 that V-arrangement is set, retains opening and is open towards second reaction chamber between the tip of paired two flow deflectors The outlet of room；When the flow deflector 207 is provided with more than two pairs, the A/F between the flow deflector 207 of upstream is less than A/F between the flow deflector 207 in downstream, preferably described flow deflector 207 is designed as 3-5 pairs.By flow deflector 207 Guide functions, aperture position of two bursts of tributaries between flow deflector is liquidated, further promote in two bursts of tributaries and its tributary The mixing of the fluid in portion；When the baffle design is more than two pairs, laminar flow effect is formed between two adjacent flow deflectors Really, aperture position of multiple laminar flows between flow deflector is liquidated, and reaches more preferable mixed effect.

And when the flow deflector 207 is provided with more than two pairs, the A/F between the flow deflector 207 of upstream is less than A/F between the flow deflector 207 in downstream, can more effectively promote it to mix, and be easy in the second reaction chamber Converge the outlet port of room.

Preferably, the turbulence structure and the structure that liquidates that shunts can be used in combination, i.e., the turbulence structure The lower section for shunting the structure that liquidates is arranged on, more specifically design is that the flow-disturbing block is located under the opening of the flow deflector Side, so allows for the shunting and liquidates after structure completes the effect of liquidating, then is acted on by the flow-disturbing of the turbulence structure, makes Fluid is sufficiently mixed.

Preferably, the V-shaped angle of sidewall shrink in the exit of second reaction chamber 200, makes second reaction chamber The fluid of the outlet port of room 200 is reduced and produces vortex, so that preferably in exit mixing；

Preferably, the opening angle β scopes at the V-type angle are 30-160 degree, preferably 60-120 degree, more preferably 90 Degree.

Preferably, at least partly the side wall 205 of second reaction chamber is straight wall；Preferably, second reaction chamber The side wall of the both sides of room is parallel.Side wall 205 makes institute using the parallel design of the side wall 205 of straight wall and second reaction chamber When stating the reaction chamber of microreactor there is multiple row to set, more effectively using the space inside microreactor.

Embodiment 3

The present embodiment provides a kind of microreactor with multiple reaction channels, is set on the basis of above example Meter.

Preferably, the reaction channel includes be arranged side by side at least two, and at least two reaction channel is corresponding Common chamber side wall between reaction chamber.As shown in figure 1, the microreactor that the present embodiment is provided is for four passages are arranged side by side.

Preferably, as shown in Fig. 2 being connected by mixed flow mouthful 206 between adjacent reaction chamber side wall.Along the flowing of fluid Direction, the upper end level of the mixed flow mouthful higher than the recoil structure lower end highly.By the design of mixed flow mouthfuls 206, not only Can be mixed the fluid between different reaction channels, while also helping the pressure between the different reaction channel of balance Power, so that fluid mixing is more abundant.Microreactor described in the utility model, channel form can greatly increase microchannel plate should The treating capacity of device.Because there is the pressure loss seriously in common microreactor, therefore high energy consumption, it is described in the utility model micro- anti- Answer device in parallel using four-way, mixed flow mouthful 206 is provided between its parallel port, can on the one hand be ensured with mixed flow each other Fluid flow is identical in every passage, on the other hand, reduces the pressure loss of unit length reaction channel.

Because in the form of four-way parallel connection and UNICOM, liquid holdup is increased, and unit length pressure drop is substantially reduced, so that Energy consumption can be reduced.Preferably, the upper end level of the mixed flow mouthful higher than the recoil structure lower end highly so that effectively Promote the mixed flow effect of the mixed flow mouthful.

The microreactor that the utility model is provided, fluid is maintained in prismatic fluidic channel and transmits the high velocity stream Body, can effectively prevent accelerate after high-velocity fluid be directly entered the big flow channel space in downstream so as to reduction of speed, do not have jet impulse Effect and the hybrid reaction degree of fluid cannot be improved, prevent the high-velocity fluid after accelerating by speed of unloading quickly, improve fluid Jet impulse effect, improve fluid the abundant degree of mixing, fluidic channel exit correspondence recoil structure, realize to penetrating The recoil of circulation road high-velocity fluid, and and then convection current body shunted, promote fluid in medium be sufficiently mixed.

Skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can be freely Combination, superposition.

The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power The protection domain that profit is required is defined.

Claims (25)

1. a kind of microreactor, including reaction channel, the reaction channel is provided with least two reaction chambers, wherein：Upstream The outlet of the first reaction chamber connected with the entrance of second reaction chamber in downstream, it is characterised in that the first reaction chamber Outlet is connected between the entrance of the second reaction chamber by fluidic channel, and the fluidic channel includes one section of uiform section passage, And the exit direction of fluid is provided with recoil structure in the second reaction chamber in the correspondence fluidic channel, makes from the jet The fluid that channel injection goes out changes flow direction when by recoil structure and turns at least two bursts tributaries along recoil structure shunting.

2. microreactor as claimed in claim 1, it is characterised in that at least two strands of flow direction is relative to described in the tributary The exit direction deflection at least an angle of 90 degrees of fluid in fluidic channel.

3. the microreactor as any one of claim 1-2, it is characterised in that the tributary is in the second reaction chamber Collect in exit.

4. the microreactor as any one of claim 1-2, it is characterised in that the length L of the uiform section passage with Relational expression L=4S~10S is met between cross-sectional area S.

5. microreactor as claimed in claim 4, it is characterised in that L=6S~8S.

6. the microreactor as any one of claim 1-2,5, it is characterised in that the entrance of second reaction chamber Area be less than between the entrance and the recoil structure formed passage in the minimum cross-sectional area perpendicular to fluid flow direction, And less than formation passage between the side wall of the recoil structure and second reaction chamber perpendicular to fluid flow direction Minimum cross-sectional area.

7. the microreactor as any one of claim 1-2,5, it is characterised in that the recoil structure is V-arrangement or arc Shape, and the concave part correspondence fluidic channel of the recoil structure exit direction.

8. microreactor as claimed in claim 7, it is characterised in that when the recoil structure is V-arrangement, the recoil structure Opening angle α scopes be 30-160 degree；

And/or, the free end of two alar parts of the recoil structure is respectively equipped with to play flow-disturbing and extend fluid travel distance to be made Projection.

9. microreactor as claimed in claim 8, it is characterised in that the α scopes are 60-120 degree.

10. microreactor as claimed in claim 9, it is characterised in that the α is 75,85 or 100 degree.

11. microreactor as any one of claim 1-2,5,8-10, it is characterised in that the recoil structure with Turbulence structure is provided between the outlet of the second reaction chamber and/or the structure that liquidates is shunted.

12. microreactors as claimed in claim 11, it is characterised in that the turbulence structure is flow-disturbing block.

13. microreactors as claimed in claim 12, it is characterised in that the flow-disturbing block prolongs from below the recoil structure Stretch to be formed and the integrally formed structure of the recoil structure.

14. microreactor as any one of claim 12-13, it is characterised in that the shunting liquidate structure be to Few a pair center lines relative to the uiform section passage are symmetrical and flow deflector of V-shaped setting, paired two flow deflectors Retain opening and the outlet being open towards second reaction chamber between tip；When the flow deflector is provided with more than two pairs, A/F between the flow deflector of upstream is less than the A/F between the flow deflector in downstream.

15. microreactors as claimed in claim 14, it is characterised in that the flow deflector is straight piece or arc-like sheet.

16. microreactors as claimed in claim 14, it is characterised in that the flow-disturbing block is located at the opening of the flow deflector Lower section.

17. such as claim 1-2,5,8-10,12-13, the microreactor any one of 15-16, it is characterised in that described The V-shaped angle of sidewall shrink in the exit of the second reaction chamber.

18. microreactors as claimed in claim 17, it is characterised in that the opening angle β scopes at the V-type angle are 30-160 Degree.

19. microreactors as claimed in claim 18, it is characterised in that the β is 60-120 degree.

20. microreactors as claimed in claim 19, it is characterised in that the β is 90 degree.

21. microreactor as any one of claim 1-2,5,8-10,12-13,15-16,18-20, its feature exists In the side wall of at least part of second reaction chamber is straight wall.

22. microreactors as claimed in claim 21, it is characterised in that the side wall of the both sides of second reaction chamber is put down OK.

23. microreactor as any one of claim 1-2,5,8-10,12-13,15-16,18-20,22, its feature Be that the reaction channel includes be arranged side by side at least two, the corresponding reaction chamber of at least two reaction channel it Between common chamber side wall.

24. microreactors as claimed in claim 23, it is characterised in that by mixed flow mouthful between adjacent reaction chamber side wall Connection.

25. microreactors as claimed in claim 24, it is characterised in that along the flow direction of fluid, the mixed flow mouthful it is upper End height higher than the recoil structure lower end highly.