CN114534657A - Microchannel fast reactor - Google Patents

Abstract

The invention belongs to the technical field of reaction equipment, and particularly discloses a microchannel rapid reactor which comprises a shell, wherein a plurality of microchannel reaction units are arranged in the shell, each microchannel reaction unit comprises a micro distributor and a reaction pipeline, a cavity is arranged in each micro distributor, a partition is arranged in each cavity, each partition divides each cavity into a plurality of independent material distribution cavities, each partition comprises a plurality of transverse parts and a plurality of vertical parts, each micro distributor is provided with a feed inlet communicated with the corresponding material distribution cavity, and the reaction pipeline is communicated with one end, far away from the feed inlet, of each cavity. In the invention, the cavity of the micro-distributor is divided into the distribution cavity with a special structure by the partition piece, so that a plurality of layers of materials which are alternately arranged are formed after the reaction materials flow through the distribution cavity, the contact area of the reaction materials is effectively increased, the mass transfer efficiency of the reaction materials is improved, the reaction time is shortened, and the production efficiency is improved.

Description

Microchannel fast reactor

Technical Field

The invention relates to the technical field of reaction equipment, in particular to a microchannel rapid reactor.

Background

The microchannel reactor, called a micro reactor for short, has the advantages of small volume, large specific surface area and better mass and heat transfer effects than a kettle reactor. Conventional microchannel reactors generally have Y-shaped channels, i.e., a channel into which a first fluid is introduced and a channel into which a second fluid is introduced intersect in a Y-shape to form a single confluent channel, and fluids supplied into each channel meet each other at the channel intersection and then are branched into the next Y-shaped channel, thereby achieving diffusion and mixing of the fluids. However, although the Y-shaped channels can achieve diffusion and mixing of the fluids, when the fluids meet at the intersection of the channels, the contact area between the first fluid and the second fluid is limited (the flow area of the Y-shaped channels is small, and therefore the contact area of the fluids is small), and therefore, in order to ensure complete reaction of the fluids, a plurality of Y-shaped channels need to be arranged, which results in relatively long reaction time of the fluids, relatively low production efficiency, and is not favorable for achieving rapid production. Therefore, it is desirable to design a microchannel reactor that can improve the production efficiency.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a microchannel fast reactor, which is used to solve the problem of low production efficiency caused by small contact area when the fluids meet in the conventional Y-type microchannel reactor.

In order to achieve the above and other related objects, the present invention provides a microchannel rapid reactor, comprising a housing, wherein the housing is internally provided with a plurality of microchannel reaction units, each microchannel reaction unit comprises a microdistributor and a reaction pipeline, a cavity is arranged inside the microdistributor, a partition is arranged in the cavity, the partition divides the cavity into a plurality of independent distribution cavities, the partition comprises a plurality of transverse parts and a plurality of vertical parts, and two adjacent transverse parts are connected through the vertical part; the micro-distributor is provided with at least two feed inlets, the feed inlets are communicated with the corresponding distribution cavity, and the end part of the reaction pipeline is communicated with one end of the cavity far away from the feed inlets.

As described above, the microchannel fast reactor of the present invention has the following beneficial effects: in the invention, the cavity in the micro-distributor is divided into a plurality of independent material distribution cavities by the partition parts, and the partition parts are provided with a plurality of transverse parts and vertical parts, so that the internal space of the material distribution cavities can be further divided into a plurality of layers of spaces by the partition parts, the reaction materials flowing into the material distribution cavities form a plurality of layers of materials, and the plurality of layers of materials formed by more than two reaction materials are alternately arranged, for example, on the longitudinal section of the material distribution cavities, the two reaction materials form a structure of 'material layer A-material layer B-material layer A-material layer B … …', and because the reaction materials fill the gaps formed between two adjacent transverse parts, the area of each layer of material is larger, namely, the contact area of the two subsequent reaction materials is large when the two reaction materials are mixed in a reaction pipeline, thus, the invention effectively increases the contact area of the reaction materials, the mass transfer efficiency of the reaction materials is improved, so that the reaction time is shortened, and the production efficiency is improved.

Optionally, an atomization section is arranged in the reaction pipeline, and the atomization section sequentially comprises a contraction section I, a throat section and an expansion section along the material flow direction.

In this scheme, when the reaction material flows through the atomizing section, the contraction section I of flowing through earlier, the flow area of contraction section I contracts, then the reaction material circulates larynx mouth section and expansion section again, the reaction material flows at the contraction section one with higher speed, the inner wall of contraction section one strikes, the breakage to the reaction material, make the reaction material atomizing, further increase the area of contact of reaction material, thereby further improve the mass transfer efficiency of reaction material, the mixed reaction of the reaction material of being convenient for, more be favorable to improving production efficiency.

Optionally, a baffling area is arranged in the reaction pipeline, and a plurality of baffling pieces I are arranged in the baffling area.

In the scheme, the reaction materials flowing through the atomizing section flow through the baffling area, and the flow path of the reaction materials is changed under the action of the baffling piece I, so that the mixing effect of the reaction materials is improved, and the mass transfer efficiency of the reaction materials is improved.

Optionally, the first baffle is a cylinder, the cylinder is horizontally arranged in the baffle area, and the axis of the cylinder intersects with the projection of the axis of the reaction pipeline on the horizontal plane;

or, the baffle piece comprises a baffle plate a and a baffle plate b, the middle part of the baffle plate a is provided with a flow guide groove, and the baffle plate a and the baffle plate b form two Z-shaped flow channels in a baffle area;

or, baffling piece one includes pivot and a plurality of coaxial fixed connection in the epaxial blade of pivot, the pivot rotates to be connected on the inner wall of baffling district.

In this scheme, when baffling piece one is the cylinder, cylindrical surface mellow and full, so, baffling piece one not only can change reaction material's flow path, improves reaction material's mixed effect, the going on of the follow-up cleaning work of still being convenient for. When the baffling piece comprises the baffling plate a and the baffling plate b, the baffling plate a and the baffling plate b form two Z-shaped flow channels in the baffling area, so that the atomized reaction materials are subjected to Z-shaped shear flow in the baffling area, the contact area of the reaction materials is increased, and the mass transfer efficiency of the reaction materials is improved. When the baffling piece I comprises the rotating shaft and the blades, the reaction materials impact on the blades, and the blades drive the rotating shaft to rotate, so that the flow path of the reaction materials is changed, the mixing effect of the reaction materials is improved, and the mass transfer efficiency of the reaction materials is improved.

Optionally, the atomizing section further comprises a second contraction section, and the second contraction section is located at one end of the expansion section far away from the throat section.

In this scheme, the design of shrink section two can avoid flowing through in the high-speed atomizing material direct impact that forms behind the atomizing section forms the right angle between baffling board a and reaction tube inner wall to be convenient for carry out cleaning work after the reaction.

Optionally, a second baffle is arranged in the second contraction section.

In this scheme, baffling piece two can change the flow path of the high-speed atomizing material that forms after the atomizing, and turbulence piece one improves the vortex effect to reaction material in coordination to improve reaction material's mixed effect, and then improve reaction material's mass transfer efficiency.

Optionally, the second baffle is a cylinder, the cylinder is horizontally arranged in the second contraction section, and the axis of the cylinder intersects with the projection of the axis of the reaction pipeline on the horizontal plane;

or, the second baffle piece comprises a rotating shaft and a plurality of blades coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the second contraction section.

In this scheme, when baffling piece two was the cylinder, cylindrical surface mellow and full, so, baffling piece two not only can change reaction material's flow path, improves reaction material's mixed effect, the going on of the follow-up cleaning work of still being convenient for. When the second baffle piece comprises a rotating shaft and a plurality of blades, the reaction materials flow through the atomizing section to form high-speed atomized materials, and the high-speed atomized materials impact the blades on the blades to drive the rotating shaft to rotate, so that the flow path of the reaction materials is changed, the mixing effect of the reaction materials is improved, and the mass transfer efficiency of the reaction materials is improved.

Optionally, a third baffle is arranged in the guide groove.

In this scheme, baffling piece three in the guiding gutter can further improve the vortex effect to reaction material to further improve reaction material's mass transfer efficiency.

Optionally, the baffle member three is a cylinder, the cylinder is horizontally arranged in the diversion trench, and the axis of the cylinder intersects with the projection of the axis of the reaction pipeline on the horizontal plane;

or the third baffle comprises a rotating shaft and a plurality of blades which are coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the baffling area.

In this scheme, when baffling piece three was the cylinder, cylindrical surface is mellow and full, can make the reaction material reposition of redundant personnel of the guiding gutter of flowing through better. When the third baffle piece comprises a rotating shaft and a plurality of blades, when reaction materials flow through the diversion trench, the reaction materials impact on the blades, the blades drive the rotating shaft to rotate, and the blades rotate to change the flow path of the reaction materials, so that the mixing efficiency of the reaction materials is improved, the mass transfer efficiency of the reaction materials is improved, and the production efficiency is improved.

Optionally, a plurality of bending portions are arranged on the transverse portion.

In this scheme, the kink in the horizontal portion can make reaction material form the material layer that has undulation to further increase reaction material's area of contact, and then further improve reaction material's mass transfer efficiency.

Drawings

FIG. 1 is a longitudinal sectional view of a microchannel rapid reactor according to one embodiment of the present invention;

FIG. 2 is a left side view of the microdistrictor of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is an axial cross-sectional view of the reaction tube array of FIG. 1;

FIG. 6 is an axial sectional view of a reaction tube in a second example of the present invention;

FIG. 7 is an axial sectional view of a reaction tube in a third example of the present invention;

FIG. 8 is an axial sectional view of a reaction tube bundle in a fourth embodiment of the present invention;

FIG. 9 is an axial sectional view of a reaction tube in a fifth example of the present invention;

FIG. 10 is an axial cross-sectional view of a reaction tube in accordance with a sixth embodiment of the present invention;

FIG. 11 is an axial sectional view of a reaction tube in a seventh example of the present invention;

FIG. 12 is an axial sectional view of a reaction tube bundle in an eighth embodiment of the present invention;

FIG. 13 is an axial sectional view of a reaction tube in a ninth embodiment of the present invention;

FIG. 14 is an axial sectional view of a reaction tube in a tenth example of the present invention;

FIG. 15 is a cross-sectional view of the micro-distributor of the eleventh embodiment of the present invention taken along the line B-B in FIG. 3;

FIG. 16 is a cross-sectional view of a twelve-medium micro-distributor of FIG. 3 taken along line B-B in accordance with an embodiment of the present invention;

fig. 17 is a sectional view of a micro-distributor according to a direction of B-B in fig. 3 in a thirteenth embodiment of the present invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the drawings provided in the present embodiment are only schematic and illustrative of the basic idea of the present invention, and the components related to the present invention are only drawn according to the number, shape and size of the components in the actual implementation, and the type, quantity and proportion of the components in the actual implementation may be changed arbitrarily, and the layout of the components may be more complicated. The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention. In addition, the specific process parameters and the like in the following examples are also only one example of suitable ranges, and those skilled in the art can select the process parameters and the like within suitable ranges through the description herein, and are not limited to the specific values in the following examples.

Reference numerals in the drawings of the specification include: the device comprises a shell 1, an inlet end tube plate 2, an outlet end tube plate 3, a feeding tube 4, a micro-distributor 5, a reaction pipeline 6, a cavity 7, a distribution cavity 710, a partition 8, a transverse part 810, a bending part 811, a vertical part 820, a lightening hole 9, a feeding hole 10, a reaction column tube 11, an atomizing section 110, a first contraction section 111, a throat section 112, an expansion section 113, a second contraction section 114, a diversion area 120, a U-shaped tube 12, a first baffle 13, a confluence tube 14, a cold and hot medium inlet tube 15, a cold and hot medium outlet tube 16, a spoiler 17, a baffle plate a18, a diversion groove 181, a baffle plate b19, a rotating shaft 20, blades 21, a second baffle 22 and a third baffle 23.

Example one

As shown in fig. 1, the present embodiment provides a microchannel fast reactor, which includes a shell 1, wherein the left end of the shell 1 is fixedly connected with an inlet end tube plate 2 (the fixed connection may be welding or may be through screw/bolt connection), the right end of the shell 1 is fixedly connected with an outlet end tube plate 3, and a sealed space (for flowing of cooling and heating media) is formed among the inlet end tube plate 2, the shell 1 and the outlet end tube plate 3. The left end of shell 1 is equipped with a plurality of inlet pipes 4, is equipped with a plurality of microchannel reaction units in the shell 1, and every microchannel reaction unit includes microdistributor 5 and reaction tube 6, and entrance end tube sheet 2 and exit end tube sheet 3 can provide the support for microdistributor 5 and reaction tube 6. Referring to fig. 2, 3 and 4, a cavity 7 is provided inside the micro-distributor 5, a partition 8 is provided inside the cavity 7, the partition 8 partitions the inner space of the cavity 7 into a plurality of independent cloth chambers 710, in this embodiment, the number of the partition 8 is one, and the number of the cloth chambers 710 is two. It should be noted that a person skilled in the art can install a suitable number of partitions 8 in the cavity 7 of the micro-distributor 5 according to actual needs, so as to form a distribution chamber 710 corresponding to the number of the reaction materials.

As shown in fig. 4, the partitioning member 8 includes a plurality of transverse portions 810 and a plurality of vertical portions 820, two adjacent transverse portions 810 are connected by the vertical portions 820, in this embodiment, the number of the transverse portions 810 is seven, the number of the vertical portions 820 is eight, and the transverse portions 810 and the vertical portions 820 are integrally formed. Two adjacent transverse portions 810 are arranged in parallel, the transverse portions 810 are both arranged horizontally, the gap value between two adjacent transverse portions 810 is greater than 0 and less than or equal to 5mm, in this embodiment, the gap value between two adjacent transverse portions 810 is 1mm, so that the reaction materials form a film-shaped material with the thickness of 1 mm.

The micro-distributor 5 is provided with a lightening hole 9 and at least two feed inlets 10, each feed inlet 10 is communicated with a corresponding distribution cavity 710, and each feed inlet 10 is communicated with a corresponding feed pipe 4 (the number of the feed pipes 4 is twice of that of the micro-channel reaction units). In this embodiment, the number of the material distribution chambers 710 is two, and thus, the number of the material inlet 10 is also two. In fig. 3, the left inlet 10 is connected to the left distribution chamber 710, the right inlet 10 is connected to the right distribution chamber 710, and the lightening hole 9 is located between the two inlets 10.

The left end of the reaction conduit 6 communicates with the right end of the cavity 7 so that the reaction mass flows into the reaction conduit 6 through the microdistributor 5. The reaction pipeline 6 comprises a plurality of reaction tubes 11, two adjacent reaction tubes 11 are communicated through a U-shaped pipe 12, in the embodiment, the reaction pipeline 6 is composed of three reaction tubes 11 connected in series, as shown in fig. 5, an atomization section 110 and a deflection area 120 are arranged in each reaction tube 11, the atomization section 110 sequentially comprises a contraction section I111, a throat section 112 and an expansion section 113 along the material flow direction, a plurality of deflection pieces I13 are arranged in the deflection area 120, in this embodiment, the deflection pieces I13 are cylinders, the cylinders are horizontally arranged in the deflection area 120, and the projection of the axis of the cylinder and the axis of the reaction tube array 11 on the horizontal plane are mutually vertical, the number of the baffle pieces 13 is twenty-nine, the twenty-nine baffle pieces 13 are divided into three rows, the middle row is nine, the upper row and the lower row are ten, the baffle pieces 13 in each row are uniformly arranged, and the baffle pieces 13 in the two adjacent rows are vertically arranged in a staggered manner. The baffle member 13 may be formed by casting integrally with the reaction tube array 11, or may be fixedly connected to the inner wall of the reaction tube array 11 by welding after the reaction tube array 11 is cast.

And a collecting pipe 14 is arranged on the outlet end tube plate 3, and reaction tubes 11 (one reaction tube 11 through which the material finally flows according to the flow direction of the material) positioned at the tail end in all the microchannel reaction units in the shell 1 are communicated with the collecting pipe 14. In this embodiment, the manifold 14 extends through the outlet end plate 3.

The shell 1 is connected with a cold and heat medium inlet pipe 15 for introducing cold and heat media into the shell 1 and a cold and heat medium outlet pipe 16 for allowing the cold and heat media in the shell 1 to flow out, and the shell 1 is also internally provided with a plurality of spoilers 17 for disturbing flow, so that the cold and heat media form turbulent flow, and heat released by reaction materials in the reaction process is better absorbed or heat is provided for the reaction materials. The spoiler 17 in this embodiment is welded to the inner wall of the housing 1.

During the in-service use, two kinds of reaction material flow in the feed inlet 10 that corresponds on the microdistrictor 5 through the inlet pipe 4 that corresponds respectively, flow in corresponding distribution chamber 710 then, because the structure of separator 8 is special, separator 8 separates the inner space of distribution chamber 710 for intercommunication multilayer space, consequently, the reaction material that flows in distribution chamber 710 has formed the multilayer material, and the thickness of every layer of material is 1mm, consequently, the reaction material has formed multilayer membranous material in distribution chamber 710 in fact. For convenience of description, we will name the two reaction materials as reaction material a and reaction material B respectively, and it can be seen from fig. 4 that the multilayer film-like materials formed by reaction material a and the multilayer film-like materials formed by reaction material B are alternately arranged, i.e. a structure of "film-like material a-film-like material B-film-like material a-film-like material B" is formed, so when the two reaction materials flow into the reaction pipe 6 (the reaction tube 11 at the bottom) after flowing through the corresponding distributing chamber 710, the multilayer film-like material a and the multilayer film-like material B automatically contact and mix under the action of gravity, because the contact area of the two reaction materials is large at this time, the mass transfer efficiency of the two reaction materials is high, and the reaction speed is high, the production efficiency is improved.

After flowing into the reaction tubes 11, the two reaction materials flow through the atomizing section 110, then flow through the baffling area 120, and finally flow out of the reaction tubes 11 along the collecting tube 14. When the reaction material flows through the atomizing section 110, the first contracting section 111 is tapered, the flow area is contracted, and the reaction material flows through the first contracting section 111 and then flows through the throat section 112 and the expanding section 113, so that the reaction material flows at an increased speed in the first contracting section 111, the inner wall of the first contracting section 111 impacts and breaks the reaction material, the reaction material is atomized, and a high-speed atomized material is obtained (the initial speed of the reaction material flowing into the feeding pipe 4 can be adjusted through a high-pressure valve or a flowmeter, and the initial speed of the reaction material can be adjusted to supersonic speed at the highest speed, so that a supersonic speed atomized material is obtained), the contact area of the atomized reaction material is further increased, and the mass transfer process of the reaction material is facilitated. Then, the atomized reaction materials flow through the baffling area 120 and react, and the baffle piece I13 in the baffling area 120 can change the flow path of the reaction materials, so that the mixing effect of the reaction materials is improved, the mass transfer efficiency of the reaction materials is improved, the chemical reaction and the heat transfer are facilitated, the side reaction is reduced, and the production efficiency is improved. In the process, the cold and heat medium liquid inlet pipe 15 continuously introduces the cold and heat medium into the shell 1, and the cold and heat medium absorbs or releases heat and then flows out from the cold and heat medium liquid outlet pipe 16, so that heat generated in the reaction process of the reaction materials is taken away in time, or heat required by the reaction is provided for the reaction materials in time.

In summary, in this embodiment, on the one hand, the contact area of the reaction materials is increased by designing the micro-distributor 5 with a special structure, and on the other hand, the atomization of the reaction materials is realized by designing the atomization section 110, so as to further increase the contact area of the reaction materials, thereby improving the mass transfer efficiency of the reaction materials after entering the reaction tubes 11, reducing the occurrence of side reactions in the reaction tubes 11, improving the production efficiency and purity of the product, and realizing rapid production.

Example two

The present embodiment is different from the first embodiment only in that: the structure of the first baffle 13 in this embodiment is different from that of the first baffle 13 in the first embodiment, as shown in fig. 6, in this embodiment, the first baffle 13 includes a baffle a18 and a baffle b19, a diversion trench 181 is opened in the middle of the baffle a18, the projection of the baffle b19 on the baffle a18 completely covers the diversion trench 181, and the baffle a18 and the baffle b19 form two "Z" shaped flow channels in the baffling area 120.

In practical use of this embodiment, after the reaction materials are atomized by flowing through the atomizing section 110, the atomized reaction materials perform Z-shaped shear flow under the guiding action of the baffle plate a18 and the baffle plate b19, specifically, a part of the reaction materials flows through the guiding groove 181 and then flows over the baffle plate b19, another part of the reaction materials flows through the guiding groove 181 and then flows under the baffle plate b19, and finally, two parts of the reaction materials converge and then flow through the next guiding groove 181, so that the reaction materials can perform Z-shaped shear flow in the baffle area 120, thereby increasing the contact area of the reaction materials and improving the mass transfer efficiency of the reaction materials.

EXAMPLE III

The present embodiment is different from the second embodiment in that: the structure of the first baffle 13 in this embodiment is different from that of the first baffle 13 in the second embodiment, as shown in fig. 7, the first baffle 13 in this embodiment includes a rotating shaft 20 and a plurality of blades 21 coaxially and fixedly connected to the rotating shaft 20, the rotating shaft 20 is rotatably connected to the inner wall of the flow-bending area 120, the number of the blades 21 in this embodiment is six, and all the six blades 21 are welded to the rotating shaft 20.

During this embodiment during the in-service use, the atomizing section 110 that the reaction material flows through realizes the atomizing after, obtains high-speed atomizing material, and high-speed atomizing material strikes on blade 21 to drive blade 21 and pivot 20 and rotate, pivoted blade 21 can change reaction material's flow path, and then realizes the vortex to reaction material, improves reaction material's mixed effect, and then improves reaction material's mass transfer efficiency.

Example four

The present embodiment is different from the second embodiment in that: as shown in fig. 8, in the present embodiment, the atomizing section 110 further includes a second contracting section 114, and the second contracting section 114 is located at the right end of the expanding section 113.

Compared with the second embodiment, in the second embodiment, the design of the second contraction section 114 avoids the direct impact of the high-speed atomized material on the right angle formed between the baffle plate a18 and the inner wall of the reaction tube array 11, and is convenient for the worker to flush the microchannel reaction unit after the reaction is finished.

EXAMPLE five

The present embodiment is different from the fourth embodiment only in that: as shown in fig. 9, in the present embodiment, a second baffle 22 is disposed in the second contracting section 114, and the second baffle 22 in the present embodiment is a cylinder, and the projection of the axis of the cylinder and the axis of the reaction tube 11 on the horizontal plane are perpendicular to each other.

During this embodiment during the in-service use, be located two baffling spare 22 of contraction section two 114, can carry out first vortex to the reaction material after the atomizing, change reaction material's flow path, increase reaction material's mixing effect, improve reaction material's mass transfer efficiency, flow along with reaction material continues along reaction tube bank 11, baffling spare 13 that is located baffling district 120 can realize the secondary vortex to reaction material, make reaction material do Z type shear flow in baffling district 120, thereby increase reaction material's area of contact, further improve reaction material's mass transfer efficiency.

EXAMPLE six

The present embodiment is different from the fifth embodiment only in that: the second baffle 22 in this embodiment is different from the second baffle 22 in the fifth embodiment in structure, as shown in fig. 10, the second baffle 22 in this embodiment includes a rotating shaft 20 and a plurality of blades 21 coaxially and fixedly connected to the rotating shaft 20, the rotating shaft 20 is rotatably connected to the inner wall of the second contracting section 114, in this embodiment, the number of the blades 21 is six, and all the six blades 21 are welded to the rotating shaft 20.

When the embodiment is in actual use, the reaction materials flow through the first contraction section 111, the first throat section 112 and the expansion section 113 of the atomization section 110, so that high-speed atomization materials are formed, the high-speed atomization materials impact on the blades 21, the blades 21 drive the rotating shaft 20 to rotate, the rotating blades 21 disturb the flow of the reaction materials, thereby changing the flow path of the reaction materials, increasing the mixing effect of the reaction materials, improving the mass transfer efficiency of the reaction materials, and along with the continuous flow of the reaction materials along the reaction tube array 11, the second turbulence of the reaction materials can be realized by the first baffle 13 positioned in the baffle area 120, so that the reaction materials do Z-shaped shear flow in the baffle area 120, thereby increasing the contact area of the reaction materials, and further improving the mass transfer efficiency of the reaction materials.

EXAMPLE seven

The present embodiment is different from the fourth embodiment only in that: as shown in fig. 11, in this embodiment, a third baffle 23 is disposed in the guide groove 181, the third baffle 23 in this embodiment is a cylinder, the cylinder is horizontally disposed in the guide groove 181, and the projection of the axis of the cylinder and the axis of the reaction pipe 6 on the horizontal plane are perpendicular to each other.

When this embodiment is used actually, three baffle 23 in the guiding gutter 181 can make the reaction mass that flows through guiding gutter 181 reposition of redundant personnel, changes reaction mass's flow path for reaction mass does the Z type in baffling district 120 and shears the in-process that flows and can also take place partial reflux under baffle three 23's effect, thereby further increases reaction mass's mixed effect, improves reaction mass's mass transfer efficiency.

Example eight

The present embodiment is different from the seventh embodiment only in that: the third baffle 23 in this embodiment is different from the third baffle 23 in the seventh embodiment in structure, as shown in fig. 12, the third baffle 23 in this embodiment includes a rotating shaft 20 and a plurality of blades 21 coaxially and fixedly connected to the rotating shaft 20, the rotating shaft 20 is rotatably connected to the inner wall of the flow-bending area 120, the number of the blades 21 in this embodiment is six, and all the six blades 21 are welded to the rotating shaft 20.

During this embodiment during the in-service use, when reaction materials flowed through guiding gutter 181, reaction materials assaulted on blade 21, blade 21 drives pivot 20 and takes place to rotate, pivoted blade 21 changes reaction materials's flow path for reaction materials makes the Z type in baffling district 120 and shears the in-process that flows and can further take place flow path's change under baffling three 23's of piece effect, thereby further increase reaction materials's mixed effect, improve reaction materials's mass transfer efficiency.

Example nine

The present embodiment is different from embodiment eight only in that: as shown in fig. 13, in this embodiment, a second baffle 22 is disposed in the second contracting section 114, and the second baffle 22 is a cylinder, or the second baffle 22 includes a rotating shaft 20 and a plurality of blades 21 coaxially and fixedly connected to the rotating shaft 20, the rotating shaft 20 is rotatably connected to the inner wall of the second contracting section 114, the second baffle 22 in this embodiment is the latter, and the number of the blades 21 is six; six blades 21 are welded to the shaft 20.

When the embodiment is in actual use, the reaction materials flow through the first contraction section 111, the throat section 112 and the expansion section 113 of the atomization section 110 to form high-speed atomization materials, the high-speed atomization materials impact on the blades 21, the blades 21 drive the rotating shaft 20 to rotate, and the rotating blades 21 disturb the flow of the reaction materials, so that the flow path of the reaction materials is changed, and the mixing effect of the reaction materials is increased. Then, the reaction materials flow through the baffling area 120, and under the turbulent flow effect of the first baffling piece 13 and the third baffling piece 23, the mixing effect of the reaction materials is further increased, so that the mass transfer efficiency of the reaction materials is improved.

Example ten

The present embodiment is different from the seventh embodiment only in that: as shown in fig. 14, in the present embodiment, a second baffle 22 is disposed in the second contraction section 114, and the second baffle 22 is a cylinder, or the second baffle 22 includes a rotating shaft and a plurality of blades coaxially and fixedly connected to the rotating shaft, the second baffle 22 in the present embodiment is a cylinder, the cylinder is horizontally disposed in the second contraction section 114, and the projection of the axis of the cylinder and the projection of the axis of the reaction tube 11 on the horizontal plane are perpendicular to each other.

When the embodiment is in actual use, after the reaction materials flow through the first contraction section 111, the throat section 112 and the expansion section 113 of the atomization section 110, the high-speed atomization materials are obtained, the high-speed atomization materials partially flow back under the action of the second baffle 22, the flow path of the high-speed atomization materials is changed, then the reaction materials flow through the baffle 120, and under the turbulent flow action of the first baffle 13 and the third baffle 23, the mixing effect of the reaction materials is further increased, so that the mass transfer efficiency of the reaction materials is improved.

EXAMPLE eleven

The present embodiment is different from any one of the first to tenth embodiments only in that: the partitioning member 8 of the present embodiment is different in structure, and as shown in fig. 15, in the present embodiment, the number of the lateral portions 810 is five, the number of the vertical portions 820 is six, and the gap between two adjacent lateral portions 810 is 2.5 mm. The transverse portion 810 is provided with a plurality of bending portions 811, and the bending portions 811 are square.

In this embodiment, the bending portion 811 on the transverse portion 810 can form a film-shaped material with undulation in the distribution chamber 710, so as to further increase the contact area between the two reaction materials, and further improve the mass transfer efficiency of the reaction materials.

Example twelve

This embodiment differs from embodiment eleven only in that: as shown in fig. 16, the bent portion 811 in the present embodiment is semicircular.

In this embodiment, another shape of the bent portion 811 is provided, and the bent portion 811 in this embodiment is semi-circular, so that the appearance is smoother, and the reaction material can form a membrane material with undulation in the distribution chamber 710.

EXAMPLE thirteen

The present embodiment is different from any one of the first to tenth embodiments only in that: as shown in fig. 17, in the present embodiment, the number of the transverse portions 810 is five, the number of the vertical portions 820 is six, and the gap between two adjacent transverse portions 810 is 2.5 mm. Horizontal portion 810 is the wave type, and two horizontal portions 810 parallel arrangement that the interval set up, and two adjacent horizontal portions 810 mirror symmetry set up.

In this embodiment, the wave-shaped transverse portion 810 can make the reaction material entering the material distribution chamber 710 form a film-like material with larger fluctuation, so as to further increase the contact area of the reaction material, and further improve the mass transfer efficiency of the reaction material.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A microchannel rapid reactor comprising a housing, characterized in that: the shell is internally provided with a plurality of microchannel reaction units, each microchannel reaction unit comprises a microdistributor and a reaction pipeline, a cavity is arranged in the microdistributor, a separator is arranged in the cavity, the separator divides the cavity into a plurality of independent material distribution cavities, the separator comprises a plurality of transverse parts and a plurality of vertical parts, and two adjacent transverse parts are connected through the vertical part; the micro distributor is provided with at least two feed inlets, the feed inlets are communicated with corresponding distributing cavities, and the end part of the reaction pipeline is communicated with one end of the cavity far away from the feed inlets.

2. The microchannel fast reactor of claim 1, wherein: the reaction pipeline is internally provided with an atomization section which sequentially comprises a contraction section I, a throat section and an expansion section along the material flow direction.

3. The microchannel fast reactor of claim 2, wherein: a baffling area is arranged in the reaction pipeline, and a plurality of baffling pieces I are arranged in the baffling area.

4. The microchannel rapid reactor of claim 3, wherein: the first baffle piece is a cylinder, the cylinder is horizontally arranged in the baffle area, and the projection of the axis of the cylinder and the projection of the axis of the reaction pipeline on the horizontal plane are intersected;

or, the baffle piece comprises a baffle plate a and a baffle plate b, the middle part of the baffle plate a is provided with a flow guide groove, and the baffle plate a and the baffle plate b form two Z-shaped flow channels in a baffle area;

or, the baffling piece one includes pivot and a plurality of coaxial fixed connection in the epaxial blade of pivot, the pivot rotates to be connected in the inner wall of baffling district.

5. The microchannel rapid reactor of claim 4, wherein: the atomization section also comprises a contraction section II, and the contraction section II is positioned at one end of the expansion section, which is far away from the throat opening section.

6. The microchannel rapid reactor of claim 5, wherein: and a second baffle piece is arranged in the second contraction section.

7. The microchannel rapid reactor of claim 6, wherein: the second baffle is a cylinder, the cylinder is horizontally arranged in the second contraction section, and the projection of the axis of the cylinder and the projection of the axis of the reaction pipeline on the horizontal plane are intersected;

or, the second baffle piece comprises a rotating shaft and a plurality of blades coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the second contraction section.

8. The microchannel rapid reactor of claim 4 or 6, wherein: and a third baffle piece is arranged in the diversion trench.

9. The microchannel rapid reactor of claim 8, wherein: the third baffle piece is a cylinder, the cylinder is horizontally arranged in the diversion trench, and the projection of the axis of the cylinder and the projection of the axis of the reaction pipeline on the horizontal plane are intersected;

or the third baffle comprises a rotating shaft and a plurality of blades which are coaxially and fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the baffling area.

10. The microchannel fast reactor of claim 1, wherein: the transverse part is provided with a plurality of bending parts.

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