Continuous flow reactors and reaction systems

Abstract

The present invention discloses a continuous flow reactor and a reaction system, which includes a driving device, a reaction tube, a stirring shaft, and a dispersion structure. A reaction chamber for accommodating reactants is formed in the reaction tube, and the reaction tube has an axial direction and a radial direction. The stirring shaft is arranged in the reaction chamber and extends along the axial direction of the reaction tube. One end of the stirring shaft passes through the reaction tube and extends out of the outside of the reaction chamber, and is connected to the driving device. The dispersion structure is arranged in the reaction chamber and is connected to the stirring shaft. The present invention drives the stirring shaft to rotate by a driving device, and at the same time drives the dispersion structure to rotate, and utilizes the stirring and shearing function of the dispersion structure to greatly enhance the mixing of gas, liquid and solid phases. The present invention aims to improve the mixing efficiency of multiphase reactants in a continuous flow reactor and improve the mass transfer and heat transfer effects of multiphase reactants.

Description

Technical Field

[0001] The invention relates to the technical field of continuous flow reactors, in particular to a continuous flow reactor and a reaction system using the continuous flow reactor. Background Art

[0002] Continuous flow reaction technology can improve equipment efficiency, simplify process flow, reduce material consumption and energy consumption, and achieve safe and clean production. Usually, in a continuous flow reaction, gas-liquid-solid multiphase reactants react in the reaction chamber, wherein solid particles are prone to sedimentation at a lower flow rate, resulting in poor mixing effect, and long-term operation will even clog the pipeline; although the particle mixing effect is good at a high flow rate, its residence time in the pipeline is short, and it is difficult to meet the requirements of the reaction time. Therefore, the continuous process of multiphase reaction has always been a difficulty and hot spot in continuous production. In the related art, although a stirring shaft is provided in the reaction chamber to force mixing of the gas-liquid-solid three phases to enhance the mass transfer and heat transfer efficiency of the multiphase reaction. However, the structure of the existing stirring shaft is single, and the stirring and mixing effect is still not ideal, and still cannot meet the needs of multiphase reaction. Summary of the Invention

[0003] The main purpose of the present invention is to provide a continuous flow reactor, aiming to improve the mixing efficiency of multiphase reactants in the continuous flow reactor and enhance the mass and heat transfer effects of the multiphase reactants.

[0004] To achieve the above object, the continuous flow reactor proposed in the present invention comprises:

[0005] Drive device;

[0006] A reaction tube, wherein a reaction chamber for accommodating reactants is formed in the reaction tube, and the reaction tube has an axial direction and a radial direction;

[0007] a stirring shaft, the stirring shaft being disposed in the reaction chamber and extending along the axial direction of the reaction tube, one end of the stirring shaft passing through the reaction tube and extending out of the reaction chamber, and being connected to the driving device; and

[0008] The dispersion structure is arranged in the reaction chamber and connected to the stirring shaft. The driving device drives the stirring shaft to rotate and simultaneously drives the dispersion structure to rotate to enhance the mixing of the reactants.

[0009] In one embodiment of the present invention, the dispersed structure includes:

[0010] an axial disperser plate, the axial disperser plate being connected to the stirring shaft and being arranged along the axial direction of the reaction tube; and / or a plurality of radial dispersers, each of the radial dispersers being connected to the stirring shaft, the plurality of radial dispersers being arranged along the radial direction of the reaction tube, the plurality of radial dispersers being distributed at intervals along the axial direction of the reaction tube, and dividing the reaction chamber into a plurality of interconnected reaction zones.

[0011] In one embodiment of the present invention, the axial dispersion plate and the stirring shaft are an integral structure; and / or the radial dispersion plate and the stirring shaft are an integral structure.

[0012] In one embodiment of the present invention, when the dispersion structure includes the axial dispersion plate, the axial dispersion plate includes: a stirring zone, which is a non-porous plate; and / or a shearing zone, which is provided with a plurality of shearing holes arranged at intervals.

[0013] In one embodiment of the present invention, in each of the reaction zones, the stirring zone and the shear zone are respectively located on both sides of the stirring shaft; in two adjacent reaction zones, the stirring zone is located on the same side of the stirring shaft; or in two adjacent reaction zones, the stirring zone and the shear zone are alternately located on the same side of the stirring shaft.

[0014] In one embodiment of the present invention, the radial dispersion plate is provided with a through hole; or the radial dispersion plate and the inner wall surface of the reaction chamber form a channel.

[0015] In one embodiment of the present invention, the through holes on the two adjacent radial dispersion plates are respectively located on two sides of the axial dispersion plate.

[0016] In one embodiment of the present invention, a side wall surface of the reaction tube is provided with a feed port and a discharge port communicating with the reaction chamber, and the feed port and the discharge port are respectively provided at two ends of the reaction tube in the axial direction.

[0017] In one embodiment of the present invention, the continuous flow reactor also includes the heat exchange tube, which is sleeved on the outer wall of the reaction tube and enclosed with the outer wall of the reaction tube to form a heat exchange cavity. The heat exchange tube is also provided with a heat exchange inlet and a heat exchange outlet connected to the heat exchange cavity, and the heat exchange inlet and the heat exchange outlet are respectively located at the two ends of the heat exchange tube in the axial direction.

[0018] The present invention also provides a reaction system, comprising the continuous flow reactor as described above, wherein a plurality of the continuous flow reactors are arranged in series or in parallel.

[0019] The continuous flow reactor provided by the technical solution of the present invention includes a driving device, a reaction tube, a stirring shaft, and a dispersion structure, wherein the reaction chamber in the reaction tube is used to accommodate reactants, the stirring shaft is arranged in the reaction chamber and extends out of the reaction chamber to be connected to the driving device, and the reaction chamber is also provided with a dispersion structure, which is connected to the stirring shaft. When in use, the driving device drives the stirring shaft to rotate in the reaction chamber, and the rotation of the stirring shaft also drives the dispersion structure connected to the stirring shaft to rotate. During the rotation of the dispersion structure, the liquid phase material and the solid phase material can be dispersed, thereby increasing the contact area between the multiphase materials, strengthening the mixing between the multiphase materials, improving the mass transfer and heat transfer effect, and thus improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the structure of the continuous flow reactor of the present invention;

[0022] Figure 2 Schematic diagram of the cross-sectional structure of the continuous flow reactor of the present invention;

[0023] Figure 3 This is a schematic structural diagram of an embodiment of a continuous flow reactor of the present invention;

[0024] Figure 4 This is a schematic structural diagram of another embodiment of the continuous flow reactor of the present invention;

[0025] Figure 5 This is a schematic structural diagram of another embodiment of the continuous flow reactor of the present invention.

[0026] Description of Figure Numbers:

[0027] Label name Label name 1000 Continuous flow reactor 311a Shear hole 100 reaction tube 312 stirring zone 110 reaction chamber 320 Radial dispersion plate 120 Feed port 321 Via 130 Discharge port 400 Couplings 140 Sealing cover 500 Drive device 200 stirring shaft 600 heat exchange tubes 300 Decentralized structure 610 Heat exchange inlet 310 Axial dispersion plate 620 Heat exchange outlet 311 Cutting area 630 heat exchange cavity

[0028] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The present invention provides a continuous flow reactor 1000 .

[0034] Reference Figure 1 and Figure 2 , Figure 1 Schematic diagram of the structure of the continuous flow reactor 1000 of the present invention, Figure 2 Schematic diagram of the cross-sectional structure of the continuous flow reactor 1000 of the present invention;

[0035] In one embodiment of the present invention, the continuous flow reactor 1000 includes a driving device 500, a reaction tube 100, a stirring shaft 200, and a dispersion structure 300. A reaction chamber 110 for accommodating reactants is formed in the reaction tube 100. The reaction tube 100 has an axial direction and a radial direction. The stirring shaft 200 is arranged in the reaction chamber 110 and extends along the axial direction of the reaction tube 100. One end of the stirring shaft 200 passes through the reaction tube 100 and extends out of the outside of the reaction chamber 110 and is connected to the driving device 500; the dispersion structure 300 is arranged in the reaction chamber 110 and is connected to the stirring shaft 200. The driving device 500 drives the stirring shaft 200 to rotate, and at the same time drives the dispersion structure 300 to rotate to enhance the mixing of the reactants.

[0036] The continuous flow reactor 1000 provided by the technical solution of the present invention includes a driving device 500, a reaction tube 100, a stirring shaft 200, and a dispersion structure 300, wherein the reaction chamber 110 in the reaction tube 100 is used to accommodate reactants, the stirring shaft 200 is arranged in the reaction chamber 110, and extends out of the reaction chamber 110 and is connected to the driving device 500 through a coupling 400, and the reaction chamber 110 is also provided with a dispersion structure 300, which is connected to the stirring shaft 200. In this way, when the driving device 500 drives the stirring shaft 200 to rotate in the reaction chamber 110, it also drives the dispersion structure 300 connected to the stirring shaft 200 to rotate. During the rotation of the dispersion structure 300, the liquid phase substance and the solid phase substance can be dispersed, thereby increasing the contact area between the multiphase substances, strengthening the mixing between the multiphase substances, improving the mass transfer and heat transfer effect, and thus achieving improved reaction efficiency.

[0037] The reaction tube 100 comprises a tube body and sealing caps 140 connected to both ends of the tube body. The stirring shaft 200 is rotatably connected to the sealing caps 140 at both ends. One of the two sealing caps 140 is a through-hole, while the other is a blind-hole. The sealing caps 140 and the tube body can be sealed using mechanical seals, magnetic seals, packing seals, or mold seals, as long as they can effectively seal the reaction chamber 110. Similarly, the sealing cap 140 and the stirring shaft 200 are also sealed to prevent liquid in the reaction chamber 110 from escaping through the assembly gap between the sealing caps 140 and the stirring shaft 200.

[0038] The driving device 500 can be a motor, such as a servo motor, a stepper motor, etc. The shaft of the motor is connected to the end of the stirring shaft 200 through a coupling 400; the forward and reverse rotation of the motor can also be changed quickly, the stirring speed is 50 to 3000 rpm, and the forward and reverse frequency can reach more than 10 Hz. The driving device 500 can change the movement direction of the multiphase fluid by driving the stirring shaft 200 to rotate forward and reverse quickly. Combined with the stirring and shearing functions of the stirring shaft 200 and the dispersion structure 300, the multiphase fluid is dispersed, the contact area of the multiphase fluid is greatly enhanced, and more broken tiny bubbles are solubilized into the slurry, which greatly improves the mass transfer and heat transfer efficiency and the reaction efficiency.

[0039] The stirring shaft 200 is a long shaft, and its material should have high strength. Since the stirring shaft 200 and the dispersion structure 300 will be in full contact with the reactants, the material selection should be high-strength plastic or stable metal alloy that does not react with the reactants.

[0040] It can be understood that the wider the blade width of the dispersion structure 300, the wider its adaptability. The wide dispersion structure 300 can better partition and stir the reactants, expand the scope of reaction application to fluids with higher viscosity, and greatly enhance the mass transfer and heat transfer performance of multiphase fluids with higher viscosity.

[0041] In one embodiment, if Figure 2 、 Figure 3 、 Figure 4 As shown, the dispersion structure 300 includes an axial dispersion plate 310 connected to the agitator shaft 200 and arranged along the axial direction of the reaction tube 100; and / or a plurality of radial dispersion plates 320, each of which is connected to the agitator shaft 200 and arranged along the radial direction of the reaction tube 100. The plurality of radial dispersion plates 320 are spaced apart along the axial direction of the reaction tube 100 and divide the reaction chamber 110 into a plurality of interconnected reaction zones. The axial dispersion plate 310 and the agitator shaft 200 are integrally formed; and / or the radial dispersion plates 320 and the agitator shaft 200 are integrally formed.

[0042] It is understandable that the dispersion structure 300 may be provided with only the axial dispersion plates 310 , or the dispersion structure 300 may be provided with only the radial dispersion plates 320 , or the dispersion structure 300 may be provided with both the axial dispersion plates 310 and the radial dispersion plates 320 .

[0043] The number of axial disperser plates 310 can be two, and the two axial disperser plates 310 can be connected to opposite sides of the stirring shaft 200. Multiple axial disperser plates 310 can be evenly arranged around the stirring shaft 200, or two adjacent axial disperser plates 310 can be arranged around the stirring shaft 200 at a certain angle.

[0044] The radial dispersion plates 320 can be circular plates or plates of other shapes. The radial dispersion plates 320 are spaced apart along the axial direction of the reaction tube 100. The spacing between two adjacent radial dispersion plates 320 should not be too small or too long. If the spacing is too small, the reactants in the spacing area will be too few, and the reactants will not be fully stirred. If the spacing is too long, the reactants in the spacing area will be too much, and the gravity of the reactants will increase the pressure on the axial dispersion plates 311 during the stirring process.

[0045] In the present invention, by combining the stirring shaft 200 with the axial dispersion plate 310 and the radial dispersion plate 320, the continuous flow reactor 1000 has efficient plug flow characteristics and excellent stirring and mixing functions, which prolongs the residence time of the multiphase reaction and is extremely suitable for the continuous process of multiphase reaction.

[0046] Furthermore, the axial dispersion plate 310 is parallel to the axial direction and may have other angles to enhance the driving force of the slurry, such as Figure 4 As shown. The number of axial dispersion plates 310 can be one; two distributed at 180 degrees; three distributed at 120 degrees; or four distributed in a cross shape. It is understood that when the cross-sectional area of the reaction tube 100 is large and the axis of the stirring shaft 200 is arranged through the cross-sectional area, more reactants need to be stirred at the same position in the axial direction of the stirring shaft 200. Multiple axial dispersion plates 310 are arranged at intervals around the circumference of the stirring shaft 200, which can achieve better stirring effect and higher efficiency.

[0047] In one embodiment, if Figure 3 、 Figure 4 、 Figure 5 As shown, when the dispersion structure 300 includes the axial dispersion plate 310, the axial dispersion plate 310 includes: a stirring zone 312 and / or a shearing zone 311, the stirring zone 312 is a non-porous plate; the shearing zone 311 is provided with a plurality of shearing holes 311a arranged at intervals.

[0048] In the technical solution of one embodiment of the present invention, the axial dispersion plate 310 can extend from the axis to both ends of the reaction tube 100. The axial dispersion plate 310 is divided into a stirring zone 312 and a shearing zone 311, wherein a plurality of shearing holes 311a are provided on the shearing zone 311. The aperture and distribution of the shearing holes 311a can vary, such as small holes in the portion close to the tube wall and large holes in the portion close to the axis. In this way, the liquid centrifuged to the tube wall in the reaction chamber 110 can be better returned to the center to mix with the gas.

[0049] like Figure 3 、 Figure 4 、 Figure 5As shown, the two axial dispersion plates 310 are both porous plates, which quickly shear the reaction materials, disperse the gas and liquid, increase the gas-liquid contact area, and enhance the reaction efficiency.

[0050] like Figure 5 As shown, the axial dispersion plate 310 is provided with a stirring zone 312 and a shearing zone 311, which are wound around the stirring shaft 200 in a spiral-like structure. This solution, combined with the forward and reverse drive of the drive device 500, facilitates pulsating mixing of multiphase materials and enhances the efficiency of gas-liquid-solid multiphase reactions. Furthermore, since the axial dispersion plate 310 has an inclination that enhances the driving force on the reaction materials, the drive device 500 rotates in one direction or periodically changes speed in the same direction, making it particularly suitable for stirring reactions of fluids with high viscosity or a high concentration of solid particles in the reactants.

[0051] In one embodiment, in each of the reaction zones, Figure 3 As shown, the stirring zone 312 and the shearing zone 311 are respectively located on both sides of the stirring shaft 200 ; in two adjacent reaction zones, the stirring zone 312 is located on the same side of the stirring shaft 200 .

[0052] like Figure 4 As shown, in two adjacent reaction zones, the stirring zone 312 and the shearing zone 311 are alternately located on the same side of the stirring shaft 200 .

[0053] Furthermore, no shear hole 311a is provided on the stirring zone 312 for driving the gas and slurry in the reaction chamber to rotate; a plurality of shear holes 311a are provided on the shear zone 311 for shearing the reaction materials and dispersing the slurry into multiple thin streams, which are fully in contact with the gas to produce chemical reactions, and are particularly suitable for gas-liquid-solid multiphase reactions.

[0054] In one embodiment, the radial dispersion plate 320 is provided with a through hole 321 , or a channel is formed between the radial dispersion plate 320 and the inner wall of the reaction chamber 110 . The through holes 321 on two adjacent radial dispersion plates 320 are located on either side of the axial dispersion plate 310 .

[0055] Furthermore, if Figure 2 、 Figure 3 As shown, the radial dispersion plate 320 is circular in shape and has approximately the same cross-sectional shape as the reaction tube 100. In this manner, the plurality of radial dispersion plates 320 can separate the reaction chamber 110 into a plurality of disconnected reaction zones. Furthermore, by providing a through hole 321 on the radial dispersion plate 320, the through hole 321 can connect two adjacent reaction zones, allowing reactants within the reaction chamber 110 to flow between adjacent reaction zones. The through hole 321 can be shaped like a hole, a square hole, or a special-shaped hole.

[0056] Further, the through hole 321 on the radial dispersion plate 320 can be one. When only one through hole 321 is provided, the through holes 321 of the two adjacent radial dispersion plates 320 are respectively provided on both sides of the axial dispersion plate 310. It can be understood that when only one through hole 321 is provided on the radial dispersion plate 320, the aperture of the through hole 321 is slightly larger so that the solid reactant will not be blocked when passing through the radial dispersion plate 320. Of course, the number of through holes 321 on the radial dispersion plate 320 can also be a plurality of spaced apart arrangements. Similarly, the aperture of the through hole 321 can also be reasonably set according to the solid particles in the reactant. Of course, the size of the aperture of the through hole 321 should not only consider the size of the solid particles in the reactant, but also the liquid flow rate in the reaction chamber 110 should be considered to achieve control of the reaction time of the reactant.

[0057] Furthermore, the radial dispersion plate 320 can be fixed on the stirring shaft 200 and rotate with the stirring shaft 200. The radial dispersion plate 320 can also be arranged on the inner wall of the reaction chamber 110 so that the radial dispersion plate 320 does not rotate with the continuous flow reactor 1000.

[0058] In one embodiment, a side wall surface of the reaction tube 100 is provided with a feed port 120 and a discharge port 130 communicating with the reaction chamber 110 . The feed port 120 and the discharge port 130 are respectively provided at two ends of the reaction tube 100 in the axial direction.

[0059] The feed port 120 allows reactants to enter the reaction chamber 110, and the discharge port 130 allows reactants to leave the reaction chamber 110. By providing the feed port 120 and the discharge port 130, the reaction chamber 110 can be easily connected to other material storage devices or product discharge devices. Among them, one or more feed ports 120 are provided. When there is only one feed port 120, different materials all enter the reaction chamber 110 through this feed port 120. For example, a solid material and a liquid material are mixed to form a suspension and enter the reaction chamber 110 through the same feed port 120. When there are multiple feed ports 120, different materials can enter the reaction chamber 110 through different feed ports 120.

[0060] The feed port 120 and the discharge port 130 are located at both ends of the reaction chamber 110 in the longitudinal direction. This makes it difficult to mix up the interfaces during the feeding and discharging processes. Moreover, after the material enters the reaction chamber 110 from the feed port 120, it needs to travel a longer distance before leaving the reaction chamber 110 through the discharge port 130, which is conducive to mixing of the reactants.

[0061] In one embodiment, the continuous flow reactor 1000 also includes the heat exchange tube 600, which is sleeved on the surface of the reaction tube 100 and enclosed with the outer wall of the reaction tube 100 to form a heat exchange cavity 630. The heat exchange tube 600 is also provided with a heat exchange inlet 610 and a heat exchange outlet 620 connected to the heat exchange cavity 630. The heat exchange inlet 610 and the heat exchange outlet 620 are respectively located at the two ends of the axial direction of the heat exchange tube 600.

[0062] The heat exchange chamber 630 is used to accommodate a heat exchange medium, which can be a heat exchange fluid such as water or oil. The heat exchange medium is injected into the heat exchange inlet 610 and discharged from the heat exchange outlet 620, thereby facilitating the replenishment or replacement of the heat exchange medium. This allows for uniform heat exchange between the heat exchange medium and the reactants in the reaction tube 100, thereby making the continuous flow reactor 1000 suitable for smooth heat release or heat absorption by the reactants in slow reactions.

[0063] The present invention also proposes a reaction system, which includes a continuous flow reactor 1000. The specific structure of the continuous flow reactor 1000 refers to the above embodiment. Since this reaction system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0064] Multiple continuous flow reactors 1000 are provided, and multiple continuous flow reactors 1000 are arranged in series or in parallel to increase reaction yield or extend residence time. For example, multiple continuous flow reactors 1000 arranged in series can achieve multi-stage continuous production, realize multi-step reactions, or utilize multiple heat exchange tubes 600 in multiple continuous flow reactors 1000 to achieve multi-temperature zone reactions. The parallel arrangement of multiple continuous flow reactors 1000 reduces the pressure within the reaction tubes 100, increases throughput, and enables scaled-up production of processes with reactions in minutes or even tens of minutes.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A continuous flow reactor, characterized in that include Drive device; A reaction tube, wherein a reaction chamber for accommodating reactants is formed in the reaction tube, and the reaction tube has an axial direction and a radial direction; a stirring shaft, the stirring shaft being disposed in the reaction chamber and extending along the axial direction of the reaction tube, one end of the stirring shaft passing through the reaction tube and extending out of the reaction chamber, and being connected to the driving device; as well as A dispersion structure, wherein the dispersion structure is arranged in the reaction chamber and connected to the stirring shaft, the driving device drives the stirring shaft to rotate, and at the same time drives the dispersion structure to rotate to enhance the mixing of the reactants; the dispersion structure includes an axial dispersion plate and / or multiple radial dispersion plates, the axial dispersion plate is connected to the stirring shaft as an integral structure and is arranged along the axial direction of the reaction tube, the axial dispersion plate includes a stirring zone and / or a shearing zone, the stirring zone is a non-porous plate, and the shearing zone is provided with multiple shear holes arranged at intervals; each radial dispersion plate is connected to the stirring shaft, and multiple radial dispersion plates are arranged along the radial direction of the reaction tube, and multiple radial dispersion plates are distributed at intervals along the axial direction of the reaction tube, and divide the reaction chamber into multiple interconnected reaction zones.

2. The continuous flow reactor according to claim 1, wherein The radial dispersion plate and the stirring shaft are an integrated structure.

3. The continuous flow reactor according to claim 1, wherein In each of the reaction zones, the stirring zone and the shearing zone are respectively located on both sides of the stirring shaft; In two adjacent reaction zones, the stirring zones are located on the same side of the stirring shaft; or In two adjacent reaction zones, the stirring zone and the shearing zone are alternately located on the same side of the stirring shaft.

4. The continuous flow reactor according to claim 1, wherein The radial dispersion plate is provided with a through hole; or the radial dispersion plate and the inner wall surface of the reaction chamber form a channel.

5. The continuous flow reactor according to claim 4, wherein The through holes on the two adjacent radial dispersion plates are respectively located on both sides of the axial dispersion plate.

6. The continuous flow reactor according to any one of claims 1 to 5, characterized in that A feed port and a discharge port communicating with the reaction chamber are provided on the side wall of the reaction tube, and the feed port and the discharge port are respectively provided at two ends of the reaction tube in the axial direction.

7. The continuous flow reactor according to claim 6, wherein The continuous flow reactor also includes a heat exchange tube, which is sleeved on the outer wall of the reaction tube and enclosed with the outer wall of the reaction tube to form a heat exchange cavity. The heat exchange tube is also provided with a heat exchange inlet and a heat exchange outlet connected to the heat exchange cavity. The heat exchange inlet and the heat exchange outlet are respectively located at the two ends of the heat exchange tube in the axial direction.

8. A reaction system, characterized in that The method comprises a plurality of continuous flow reactors according to any one of claims 1 to 7, wherein the plurality of continuous flow reactors are arranged in series or in parallel.

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