CN113522195B - Inserted sheet formula microchannel continuous reactor convenient to change catalyst - Google Patents
Inserted sheet formula microchannel continuous reactor convenient to change catalyst Download PDFInfo
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- CN113522195B CN113522195B CN202110777164.5A CN202110777164A CN113522195B CN 113522195 B CN113522195 B CN 113522195B CN 202110777164 A CN202110777164 A CN 202110777164A CN 113522195 B CN113522195 B CN 113522195B
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- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/584—Recycling of catalysts
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Abstract
The invention relates to the technical field of microreactors, in particular to an insert type microchannel continuous reactor convenient for catalyst replacement, wherein a first heat exchange layer comprises a first partition plate, and a second heat exchange layer comprises a second partition plate; the first partition plate and the second partition plate are respectively provided with a medium channel; the medium channel comprises a plurality of mutually parallel second straight line sections and a second bent section for connecting two adjacent second straight line sections, and the second straight line sections are perpendicular to the first straight line sections in a non-coplanar manner; the inlet end and the outlet end of the medium channel are respectively arranged at one end, which is not connected with the bent section, of the two first straight line sections at the outermost side. The catalyst can be replaced for multiple times to perform one catalytic reaction on the medium to be catalyzed, so that the capacity of the medium to be catalyzed for one time is increased, and the catalytic efficiency is integrally improved.
Description
The application is a divisional application taking patent application with the application number of 201910489383.6, the application date of 2019, 06 months and 06 days, and the name of 'an insert type microchannel continuous reactor' as a parent application.
Technical Field
The invention relates to the technical field of microreactors, in particular to an insert type microchannel continuous reactor.
Background
In chemical production, more than one material is required to be mixed for reaction. The conventional reactors usable for mixing are mainly a continuous stirring reactor, a plug flow reactor, and the like. Most of the traditional reactors have the problems of incapability of continuous production, poor heat and mass transfer effects, difficulty in accurate control of residence time and the like. The micro-reactor is a miniaturized chemical reaction system with unit reaction interface width of micron order, is a micro-chemical technology which is started in the 90 s, is a continuous flow channel type reactor, and can also be called as a micro-channel reactor or a micro-channel continuous reactor. Compared with the traditional mixing reactor, the micro-channel continuous reactor has the advantages of convenience for accurate operation, less side reaction, energy conservation, emission reduction, continuous operation and the like, can provide a great specific surface area, has extremely high mass and heat transfer efficiency, and simultaneously realizes rapid and uniform mixing of fluids.
When a microchannel continuous reactor is used for reaction, most of the catalysts need to be used, and the catalysts are mostly fixedly arranged in the channels of the microchannel continuous reactor. For example, the chinese patent application No. 201610623272.6 discloses a gas-solid phase microreactor, the reaction unit of which comprises a heating or cooling medium layer, a catalyst filling layer, an inlet and outlet gas mesh layer and a reaction and product medium layer, which are sequentially stacked together. This kind of structure is because its passageway is at the micron level, is not convenient for carry out the change of catalyst, and old and useless catalyst card can appear often and can't take out the change in the passageway, needs to take apart whole microreactor this moment, takes out catalyst filling layer or reaction layer, and is very inconvenient, leads to the whole scrapping of reaction layer that microchannel continuous reactor has the catalyst easily, and often dismantles also can shorten the life-span of microreactor and also leads to the microreactor to damage easily. The manufacturing cost of the microchannel continuous reactor is high, which undoubtedly increases the experimental and production costs.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problems to be solved by the invention are as follows: provides an inserted sheet type microchannel continuous reactor with a detachable reaction layer.
In order to solve the technical problems, the invention adopts the technical scheme that: an insert type microchannel continuous reactor comprises a first heat exchange layer, a reaction layer and a second heat exchange layer which are sequentially arranged from top to bottom;
the reaction layer comprises a first fixed plate, a second fixed plate and a movable plate which are arranged on the same horizontal plane, and the movable plate is arranged between the first fixed plate and the second fixed plate;
the movable plate is provided with a reaction channel for reaction liquid to enter and exit, the reaction channel comprises a plurality of mutually parallel straight line sections and a bent section for connecting two adjacent straight line sections, and the inlet end and the outlet end of the reaction channel are respectively arranged at one ends, which are not connected with the bent section, of the two straight line sections on the outermost side;
a feeding channel is arranged on the first fixing plate, a discharging channel is arranged on the second fixing plate, the feeding channel is connected with the inlet end of the reaction channel, the discharging channel is connected with the outlet end of the reaction channel, and the feeding channel and the discharging channel are both parallel to the axis of the straight line section and are positioned on the same horizontal plane;
the feeding channel is internally sleeved with a first connecting piece, the first connecting piece is a hollow cylindrical shape, the length of the first connecting piece is greater than that of the feeding channel, the discharging channel is internally sleeved with a second connecting piece, the second connecting piece is a hollow cylindrical shape, and the length of the second connecting piece is greater than that of the discharging channel.
The invention has the beneficial effects that: by dividing the reaction layer into two fixed plates, arranging a movable plate between the two fixed plates, respectively connecting the feed channel and the discharge channel of the two fixed plates with the inlet end and the outlet end of the reaction channel, and the fixed plate and the movable plate are connected into a whole through the first connecting piece and the first connecting piece, so that when the insert type microchannel continuous reactor is used, the fixed plate and the movable plate form an integral reaction layer, and when the catalyst needs to be replaced, the first connecting piece and the first connecting piece are drawn out, and then can take out the fly leaf, carry out the change of catalyst, whole process need not to dismantle whole inserted sheet formula microchannel continuous reactor, and it is fast to change the catalyst, is difficult for dismantling the damage to inserted sheet formula microchannel continuous reactor because of repeatedly, has increased the life of whole inserted sheet formula microchannel continuous reactor.
Drawings
FIG. 1 is an exploded view of a bayonet microchannel continuous reactor according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a plug-in microchannel continuous reactor according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the front cross-sectional structure of a plug-in microchannel continuous reactor according to an embodiment of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 1;
description of reference numerals: 1. a first heat exchange layer; 11. a media channel;
2. a reaction layer; 21. a first fixing plate; 211. a feed channel; 212. a first connecting member;
213. connecting sheets; 22. a second fixing plate; 221. a discharge channel; 222. a second connecting member;
23. a movable plate; 231. a straight line segment; 232. a curved section; 233. a flow choking block;
3. a second heat exchange layer;
4. a handle.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the reaction layer is divided into a fixed plate and a movable plate, a reaction channel for placing the catalyst is arranged on the movable plate, the fixed plate is connected with other structures of the reactor, and the movable plate can be taken out independently for replacing the catalyst.
Referring to fig. 1 to 4, the insert type microchannel continuous reactor of the present invention includes a first heat exchange layer 1, a reaction layer 2 and a second heat exchange layer 3 sequentially arranged from top to bottom;
the reaction layer 2 comprises a first fixed plate 21, a second fixed plate 22 and a movable plate 23 which are arranged on the same horizontal plane, the movable plate 23 is arranged between the first fixed plate 21 and the second fixed plate 22, the upper side and the lower side of the first fixed plate 21 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3, and the upper side and the lower side of the second fixed plate 22 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3;
the movable plate 23 is provided with a reaction channel for the reaction liquid to enter and exit, the top of the reaction channel is open, the bottom surface of the first heat exchange layer 1 is a cover plate of the reaction channel, the reaction channel comprises a plurality of mutually parallel straight line segments 231 and a bent segment 232 connecting two adjacent straight line segments 231, and the inlet end and the outlet end of the reaction channel are respectively arranged at one end of two straight line segments 231 at the outermost side which are not connected with the bent segment 232;
a feeding channel 211 is arranged on the first fixing plate 21, a discharging channel 221 is arranged on the second fixing plate 22, the feeding channel 211 is connected with the inlet end of the reaction channel, the discharging channel 221 is connected with the outlet end of the reaction channel, and the feeding channel 211 and the discharging channel 221 are both parallel to the axis of the straight line section 231 and are located on the same horizontal plane;
the feeding channel 211 is internally sleeved with a first connecting piece 212, the first connecting piece 212 is in a hollow cylindrical shape, the length of the first connecting piece is larger than that of the feeding channel 211, the discharging channel 221 is internally sleeved with a second connecting piece 222, the second connecting piece 222 is in a hollow cylindrical shape, and the length of the second connecting piece 222 is larger than that of the discharging channel 221.
The working process of the invention is as follows: placing a catalyst in a reaction channel on a movable plate 23, then inserting the movable plate 23 between a first fixed plate 21 and a second fixed plate 22, inserting a first connecting piece 212 into a feeding channel 211, wherein the length of the first connecting piece 212 is greater than that of the feeding channel 211, so that a part of the first connecting piece 212 is inserted into a straight line section 231 in the reaction channel, inserting a second connecting piece 222 into a discharging channel 221, wherein the length of the second connecting piece 222 is greater than that of the discharging channel 221, so that a part of the second connecting piece 222 is inserted into the straight line section 231 in the reaction channel, the first connecting piece 212 and the second connecting piece 222 connect the first fixed plate 21, the second fixed plate 22 and the movable plate 23 into a whole, injecting a reaction solution to be reacted into the reaction channel from a hollow part of the first connecting piece 212, flowing and mixing the reaction solution in the reaction channel, and then flowing out from a hollow part of the second connecting piece 222, completing the reaction;
after the catalyst is used for a period of time, the first connecting member 212 and the second connecting member 222 are drawn out, the movable plate 23 is drawn out, the used catalyst is removed, and the new catalyst is replaced.
From the above description, the beneficial effects of the present invention are: by dividing the reaction layer into two fixed plates, arranging a movable plate between the two fixed plates, respectively connecting the feed channel and the discharge channel of the two fixed plates with the inlet end and the outlet end of the reaction channel, and the fixed plate and the movable plate are connected into a whole through the first connecting piece and the first connecting piece, so that when the insert type microchannel continuous reactor is used, the fixed plate and the movable plate form an integral reaction layer, and when the catalyst needs to be replaced, the first connecting piece and the second connecting piece are drawn out, and then can take out the fly leaf, carry out the change of catalyst, whole process need not to dismantle whole inserted sheet formula microchannel continuous reactor, and it is fast to change the catalyst, is difficult for dismantling the damage to inserted sheet formula microchannel continuous reactor because of repeatedly, has increased the life of whole inserted sheet formula microchannel continuous reactor.
Further, a plurality of pulleys are disposed at the bottom of the movable plate 23, and a first groove for accommodating the pulleys is disposed on the upper bottom surface of the second heat exchange layer 3.
As can be seen from the above description, the pulley is disposed at the bottom of the movable plate, and the pulley can be disposed in the first groove on the upper bottom surface of the second heat exchange layer, so that the movable plate can be conveniently drawn out, and most of the bottom of the movable plate is still in contact with the second heat exchange layer, thereby ensuring uniformity of heat exchange.
Furthermore, one end of the first connecting piece 212 is provided with a connecting piece 213, the connecting piece 213 is provided with a connecting hole, and a plane of the connecting piece 213 is perpendicular to a plane of a central axis of the first connecting piece 212.
Further, the second connecting member 222 is identical to the first connecting member 212, and is provided with the same connecting piece 213.
It can be known from the above description that, through set up the connection piece in the one end of first connecting piece and second connecting piece, insert first connecting piece and second connecting piece respectively the feeding lead to with discharge channel after, can use the bolt to pass the connecting hole, cooperation nut fixes first connecting piece and second connecting piece on first fixed plate and second fixed plate, the stability of the connection of first connecting piece and second connecting piece has been strengthened, and first connecting piece and second connecting piece adopt the same structure and size, and the production of being convenient for, the connection piece also can avoid improper use to cause first connecting piece or second connecting piece to slide into reaction channel simultaneously, play spacing effect effectively.
Further, the feeding channel 211 and the discharging channel 221 are provided with strip-shaped protrusions along the length extending direction of the inner walls thereof, and the outer walls of the first connecting piece 212 and the second connecting piece 222 are provided with second grooves matched with the strip-shaped protrusions.
As can be seen from the above description, the strip-shaped protrusions are arranged on the feeding channel and the discharging channel, and the second grooves are arranged on the first connecting piece and the second connecting piece in a matching manner, so that the second grooves and the strip-shaped protrusions are matched, and the stability of the connection of the first connecting piece and the second connecting piece is enhanced.
Furthermore, a buckle is arranged on the outer side wall of the movable plate 23, and a clamping groove matched with the buckle is arranged on one surface of the outer side wall of the first fixed plate 21, the second fixed plate 22 and the movable plate 23, which is located on the same horizontal plane.
It can be known from the above description that the buckle and the clamping groove are arranged and matched with the first connecting piece and the second connecting piece, so that the connection stability of the movable plate and the integrity of the reaction layer can be enhanced, and the types and sizes of the buckle and the clamping groove can be selected according to the size and the use scene of the specific insert type microchannel continuous reactor.
Furthermore, a flow blocking block 233 is arranged in the reaction channel, and the cross section of the flow blocking block 233 is in a shape of a circle, an ellipse, a semicircle, a rectangle, a trapezoid, a diamond or a triangle.
As can be seen from the above description, the flow-blocking block can enhance the mixing force during the reaction by providing the flow-blocking block in the reaction channel.
The first embodiment of the invention is as follows:
an insert type microchannel continuous reactor comprises a first heat exchange layer 1, a reaction layer 2 and a second heat exchange layer 3 which are sequentially arranged from top to bottom;
the reaction layer 2 comprises a first fixed plate 21, a second fixed plate 22 and a movable plate 23 which are arranged on the same plane, the movable plate 23 is arranged between the first fixed plate 21 and the second fixed plate 22, the upper side and the lower side of the first fixed plate 21 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3, and the upper side and the lower side of the second fixed plate 22 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3;
the movable plate 23 is provided with a reaction channel for the reaction liquid to enter and exit, the top of the reaction channel is open, the bottom surface of the first heat exchange layer 1 is a cover plate of the reaction channel, the reaction channel comprises a plurality of mutually parallel straight line segments 231 and a bent segment 232 connecting two adjacent straight line segments 231, and the inlet end and the outlet end of the reaction channel are respectively arranged at one end of two straight line segments 231 at the outermost side which are not connected with the bent segment 232;
a feeding channel 211 is arranged on the first fixing plate 21, a discharging channel 221 is arranged on the second fixing plate 22, the feeding channel 211 is connected with the inlet end of the reaction channel, the discharging channel 221 is connected with the outlet end of the reaction channel, and the feeding channel 211 and the discharging channel 221 are both parallel to the axis of the straight line section 231 and are located on the same horizontal plane;
a first connecting piece 212 is sleeved in the feeding channel 211, the first connecting piece 212 is a cylindrical hollow inside and has a length greater than that of the feeding channel 211, a second connecting piece 222 is sleeved in the discharging channel 221, the second connecting piece 222 is a cylindrical hollow inside and has a length greater than that of the discharging channel 221;
one end of the first connecting piece 212 is provided with a connecting piece 213, the connecting piece 213 is provided with a connecting hole, and the plane of the connecting piece 213 is vertical to the plane of the central shaft of the connecting piece; the second connecting piece 222 and the first connecting piece 212 are completely the same in shape, structure and size, and are provided with the same connecting piece 213;
a handle 4 is provided on an outer side wall of the movable plate 23 not in contact with the first fixing plate 21, the second fixing plate 22, the first heat exchange layer 1 and the second heat exchange layer 3.
The second embodiment of the invention is as follows:
an insert type microchannel continuous reactor comprises a first heat exchange layer 1, a reaction layer 2 and a second heat exchange layer 3 which are sequentially arranged from top to bottom;
the reaction layer 2 comprises a first fixed plate 21, a second fixed plate 22 and a movable plate 23 which are arranged on the same horizontal plane, the movable plate 23 is arranged between the first fixed plate 21 and the second fixed plate 22, and the upper side and the lower side of the first fixed plate 21 and the upper side and the lower side of the second fixed plate 22 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3;
the movable plate 23 is provided with a reaction channel for the reaction liquid to enter and exit, the top of the reaction channel is open, the bottom surface of the first heat exchange layer 1 is a cover plate of the reaction channel, the reaction channel comprises a plurality of mutually parallel straight line segments 231 and a bent segment 232 connecting two adjacent straight line segments 231, and the inlet end and the outlet end of the reaction channel are respectively arranged at one end of two straight line segments 231 at the outermost side which are not connected with the bent segment 232;
a feeding channel 211 is arranged on the first fixing plate 21, a discharging channel 221 is arranged on the second fixing plate 22, the feeding channel 211 is connected with the inlet end of the reaction channel, the discharging channel 221 is connected with the outlet end of the reaction channel, and the feeding channel 211 and the discharging channel 221 are both parallel to the axis of the straight line section 231 and are located on the same horizontal plane;
a first connecting piece 212 is sleeved in the feeding channel 211, the first connecting piece 212 is a cylindrical hollow inside and has a length greater than that of the feeding channel 211, a second connecting piece 222 is sleeved in the discharging channel 221, the second connecting piece 222 is a cylindrical hollow inside and has a length greater than that of the discharging channel 221;
a plurality of pulleys are arranged at the bottom of the movable plate 23, and a first groove for accommodating the pulleys is arranged on the upper bottom surface of the second heat exchange layer 3;
one end of the first connecting piece 212 is provided with a connecting piece 213, the connecting piece 213 is provided with a connecting hole, and the plane of the connecting piece 213 is vertical to the plane of the central shaft of the connecting piece; the second connecting piece 222 is identical to the first connecting piece 212 and is provided with an identical connecting piece 213;
a flow blocking block 233 is arranged in the reaction channel, and the cross section of the flow blocking block 233 is in a shape of a circle, an ellipse, a semicircle, a rectangle, a trapezoid, a diamond or a triangle.
The third embodiment of the invention is as follows:
an insert type microchannel continuous reactor comprises a first heat exchange layer 1, a reaction layer 2 and a second heat exchange layer 3 which are sequentially arranged from top to bottom;
the reaction layer 2 comprises a first fixed plate 21, a second fixed plate 22 and a movable plate 23 which are arranged on the same horizontal plane, the movable plate 23 is arranged between the first fixed plate 21 and the second fixed plate 22, and the upper side and the lower side of the first fixed plate 21 and the upper side and the lower side of the second fixed plate 22 are respectively fixedly connected with the first heat exchange layer 1 and the second heat exchange layer 3;
the movable plate 23 is provided with a reaction channel for the reaction liquid to enter and exit, the top of the reaction channel is open, the bottom surface of the first heat exchange layer 1 is a cover plate of the reaction channel, the reaction channel comprises a plurality of mutually parallel straight line segments 231 and a bent segment 232 connecting two adjacent straight line segments 231, and the inlet end and the outlet end of the reaction channel are respectively arranged at one end of two straight line segments 231 at the outermost side which are not connected with the bent segment 232;
a feeding channel 211 is arranged on the first fixing plate 21, a discharging channel 221 is arranged on the second fixing plate 22, the feeding channel 211 is connected with the inlet end of the reaction channel, the discharging channel 221 is connected with the outlet end of the reaction channel, and the feeding channel 211 and the discharging channel 221 are both parallel to the axis of the straight line section 231 and are located on the same horizontal plane;
a first connecting piece 212 is sleeved in the feeding channel 211, the first connecting piece 212 is a cylindrical hollow inside and has a length greater than that of the feeding channel 211, a second connecting piece 222 is sleeved in the discharging channel 221, the second connecting piece 222 is a cylindrical hollow inside and has a length greater than that of the discharging channel 221;
the first heat exchange layer 1 comprises a first top plate and a first partition plate which are sequentially arranged from top to bottom, the second heat exchange layer 3 comprises a second top plate and a second partition plate which are sequentially arranged from top to bottom, medium channels 11 are respectively arranged on the first partition plate and the second partition plate, the top of each medium channel 11 is open, a plurality of pulleys are arranged at the bottom of the movable plate 23, and first grooves for accommodating the pulleys are arranged on the upper bottom surface of the second heat exchange layer 3, namely, first grooves for accommodating the pulleys are arranged on the second top plate of the second heat exchange layer 3;
one end of the first connecting piece 212 is provided with a connecting piece 213, the connecting piece 213 is provided with a connecting hole, and the plane of the connecting piece 213 is vertical to the plane of the central shaft of the connecting piece; the second connecting piece 222 is identical to the first connecting piece 212 and is provided with an identical connecting piece 213;
the feeding channel 211 and the discharging channel 221 are respectively provided with a strip-shaped protrusion along the length extending direction of the inner wall thereof, and the outer walls of the first connecting piece 212 and the second connecting piece 222 are provided with a second groove adapted to the strip-shaped protrusion.
A buckle is arranged on the outer side wall of the movable plate 23, and a clamping groove matched with the buckle is arranged on one surface, on the same horizontal plane, of the outer side walls of the first fixed plate 21, the second fixed plate 22 and the movable plate 23;
a flow blocking block 233 is arranged in the reaction channel, and the cross section of the flow blocking block 233 is in a shape of a circle, an ellipse, a semicircle, a rectangle, a trapezoid, a diamond or a triangle.
In summary, the reaction layer is divided into two fixed plates, and the movable plate is disposed between the two fixed plates, the feeding channel and the discharging channel of the two fixed plates are respectively connected with the inlet end and the outlet end of the reaction channel, and the fixed plate and the movable plate are connected into a whole through the first connecting piece and the first connecting piece, so that when the insert type microchannel continuous reactor is used, the fixed plate and the movable plate form an integral reaction layer, and when the catalyst needs to be replaced, the first connecting piece and the first connecting piece are drawn out, the movable plate can be taken out for replacing the catalyst, the whole insert type microchannel continuous reactor does not need to be disassembled in the whole process, the catalyst replacing speed is high, the insert type microchannel continuous reactor is not easy to be damaged due to repeated disassembly, and the service life of the whole insert type microchannel continuous reactor is prolonged;
the pulleys are arranged at the bottom of the movable plate and can be arranged in the first grooves on the upper bottom surface of the second heat exchange layer, so that the movable plate is convenient to draw out, most of the bottom of the movable plate is still in contact with the second heat exchange layer, and the uniformity of heat exchange is ensured;
the connecting pieces are arranged at one ends of the first connecting piece and the second connecting piece, and after the first connecting piece and the second connecting piece are respectively inserted into the feeding channel and the discharging channel, bolts can penetrate through the connecting holes to respectively fix the first connecting piece and the second connecting piece on the first fixing plate and the second fixing plate, so that the connecting stability of the first connecting piece and the second connecting piece is enhanced, the first connecting piece and the second connecting piece adopt the same structure and size, the production is convenient, and meanwhile, the connecting pieces can also avoid the phenomenon that the first connecting piece and the second connecting piece slide into the reaction channel due to improper use;
the strip-shaped bulges are arranged on the feeding channel and the discharging channel and are matched with the first connecting piece and the second connecting piece to form the second grooves, so that the second grooves are matched with the strip-shaped bulges, and the connection stability of the first connecting piece and the second connecting piece with the two fixing plates is enhanced;
the buckle and the clamping groove are arranged and matched with the first connecting piece and the second connecting piece, so that the connection stability of the movable plate and the integrity of the reaction layer are enhanced, and the types and the sizes of the buckle and the clamping groove can be selected according to the size and the use scene of a specific insert type microchannel continuous reactor;
the flow blocking block is arranged in the reaction channel and is mostly arranged at the bottom of the reaction channel, and the flow blocking block can enhance the mixing force in the reaction process.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (3)
1. An insert type microchannel continuous reactor convenient for catalyst replacement is characterized by comprising a first heat exchange layer, a reaction layer and a second heat exchange layer which are sequentially arranged from top to bottom;
the reaction layer comprises a first fixed plate, a second fixed plate and a movable plate which are arranged on the same horizontal plane, and the movable plate is arranged between the first fixed plate and the second fixed plate;
the movable plate is provided with a reaction channel for the reaction liquid to enter and exit; the reaction channel comprises a plurality of mutually parallel straight line sections and a bent section for connecting two adjacent straight line sections, and the inlet end and the outlet end of the reaction channel are respectively arranged at one ends, which are not connected with the bent section, of the two straight line sections at the outermost side;
a feeding channel is arranged on the first fixing plate, a discharging channel is arranged on the second fixing plate, the feeding channel is connected with the inlet end of the reaction channel, the discharging channel is connected with the outlet end of the reaction channel, and the feeding channel and the discharging channel are parallel to the axis of the straight line section and are positioned on the same horizontal plane;
the feeding channel is internally sleeved with a first connecting piece, the first connecting piece is in a cylindrical shape with a hollow inner part, the length of the first connecting piece is greater than that of the feeding channel, the discharging channel is internally sleeved with a second connecting piece, the second connecting piece is in a cylindrical shape with a hollow inner part, and the length of the second connecting piece is greater than that of the discharging channel;
the first connecting piece and the second connecting piece are both in a straight shape;
a plurality of pulleys are arranged at the bottom of the movable plate, and a first groove for accommodating the pulleys is formed in the upper bottom surface of the second heat exchange layer;
one end of the first connecting piece is provided with a connecting piece, the connecting piece is provided with a connecting hole, and the plane of the connecting piece is vertical to the plane of the central shaft of the first connecting piece;
the feeding channel and the discharging channel are provided with strip-shaped bulges along the length extending direction of the inner walls of the feeding channel and the discharging channel, and second grooves matched with the strip-shaped bulges are formed in the outer walls of the first connecting piece and the second connecting piece.
2. The continuous reactor of claim 1, wherein the outer sidewall of the movable plate is provided with a buckle, and the first and second fixed plates and the outer sidewall of the movable plate are provided with a slot adapted to the buckle on the same horizontal plane.
3. The continuous reactor of claim 1, wherein the reactor channel is provided with a flow-blocking block, and the cross section of the flow-blocking block is circular, elliptical, semicircular, rectangular, trapezoidal, rhombic or triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110777164.5A CN113522195B (en) | 2019-06-06 | 2019-06-06 | Inserted sheet formula microchannel continuous reactor convenient to change catalyst |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489383.6A CN110115965B (en) | 2019-06-06 | 2019-06-06 | Inserted sheet formula microchannel continuous reactor |
| CN202110777164.5A CN113522195B (en) | 2019-06-06 | 2019-06-06 | Inserted sheet formula microchannel continuous reactor convenient to change catalyst |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910489383.6A Division CN110115965B (en) | 2019-06-06 | 2019-06-06 | Inserted sheet formula microchannel continuous reactor |
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| CN113522195A CN113522195A (en) | 2021-10-22 |
| CN113522195B true CN113522195B (en) | 2022-08-09 |
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| CN201910489383.6A Active CN110115965B (en) | 2019-06-06 | 2019-06-06 | Inserted sheet formula microchannel continuous reactor |
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| CN112299973B (en) * | 2020-11-09 | 2023-01-31 | 浙江三美化工股份有限公司 | Method for preparing perfluorohexanone by using hexafluoropropylene |
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| CN113522195A (en) | 2021-10-22 |
| CN110115965B (en) | 2021-06-01 |
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