Acoustic resonance continuous flow reaction device

Abstract

The present invention discloses an acoustic resonance continuous flow reaction device, comprising a continuous flow reactor, an acoustic resonance mechanism and a mixing structure. The continuous flow reactor comprises a plurality of reaction tubes arranged in series, a containing cavity for containing reactants is formed in the reaction tube, the reaction tube has an axial direction and a radial direction, the reaction tube is also provided with a feed port and a discharge port connected to the containing cavity, the feed port and the discharge port are respectively arranged at both ends of the axial direction of the reaction tube; the acoustic resonance mechanism is provided with a mounting platform, a plurality of reaction tubes are fixed on the surface of the mounting platform in sequence, the acoustic resonance mechanism drives the continuous flow reactor to vibrate, so that the reactants contained in the containing cavity are macroscopically mixed; the mixing structure is provided in the containing cavity, and is arranged along the axial direction and radial direction of the reaction tube, and the mixing structure can cause the reactants contained in the containing cavity to be microscopically mixed. The technical solution of the present invention aims to solve the problem that the current acoustic resonance mixer cannot meet the engineering application and engineering amplification of gas-liquid-solid multiphase fluid reaction.

Description

Technical Field

[0001] The invention relates to the technical field of reaction devices, in particular to an acoustic resonance continuous flow reaction device. Background Art

[0002] Acoustic resonance has been applied to mixed explosives, propellants, energetic materials, etc. as a means of enhancing multiphase mixing. Acoustic resonance mixing technology has the advantages of paddleless mixing and whole-field mixing. It is a new process that utilizes vibration and acoustic flow coupling and has broad application prospects. However, existing acoustic resonance mixers can only be used in intermittent reaction processes. As disclosed in patent application numbers 201410799813.1 and 201710058169.6, the acoustic resonance mixer can achieve a mixing efficiency of 2 to 10 times that of traditional stirring and mixing methods in solid-solid, solid-liquid, liquid-liquid, high-viscosity material systems and materials containing nanomaterials. However, this type of acoustic resonance mixer can only enhance macroscopic mixing, and the slurry cannot form microscale liquid flows or droplets. Therefore, its application in multiphase fluid reaction engineering is limited, and it is difficult to scale up the equipment and realize engineering applications. Summary of the invention

[0003] The main purpose of the present invention is to provide an acoustic resonance continuous flow reaction device, which aims to solve the problem that the current acoustic resonance mixer cannot meet the engineering application of gas-liquid-solid multiphase fluid reaction and the engineering amplification problem.

[0004] To achieve the above object, the acoustic resonance continuous flow reaction device proposed by the present invention comprises:

[0005] A continuous flow reactor, the continuous flow reactor comprising a plurality of reaction tubes arranged in series, wherein a receiving cavity for receiving reactants is formed in the reaction tube, the reaction tube has an axial direction and a radial direction, and the reaction tube is further provided with a feed inlet and a discharge inlet communicating with the receiving cavity, the feed inlet and the discharge inlet are respectively arranged at two ends of the reaction tube in the axial direction;

[0006] an acoustic resonance mechanism, wherein the acoustic resonance mechanism is provided with a mounting platform, a plurality of the reaction tubes are sequentially fixed on the surface of the mounting platform, and the acoustic resonance mechanism drives the continuous flow reactor to vibrate so as to cause macroscopic mixing of the reactants contained in the containing chamber; and

[0007] A mixing structure is provided in the containing chamber and arranged along the axial direction and radial direction of the reaction tube. The mixing structure can cause microscopic mixing of the reactants contained in the containing chamber.

[0008] In one embodiment of the present invention, the mixing structure includes a first mixing plate, the first mixing plate has a length direction and a width direction, the length direction extends along the axial direction of the reaction tube, and the width direction extends along the radial direction of the reaction tube. The first mixing plate is also provided with a plurality of through holes, and the acoustic resonance mechanism vibrates along the extension direction of the central axis of the through hole.

[0009] In one embodiment of the present invention, there are a plurality of the first mixing plates, and the plurality of mixing plates are arranged at intervals along the vibration direction of the acoustic resonance mechanism.

[0010] In one embodiment of the present invention, the mixing structure also includes a plurality of second mixing plates, which are fixed to the cavity wall of the accommodating cavity and extend toward the first mixing plate. A passage is formed between the second mixing plate and the first mixing plate, and the plurality of second mixing plates are arranged at intervals along the axial direction of the reaction tube.

[0011] In one embodiment of the present invention, a plurality of the second mixing plates are disposed on two opposite surfaces of the first mixing plate.

[0012] In one embodiment of the present invention, the distance between two adjacent second mixing plates in the axial direction is defined as D1, which satisfies the condition: 2mm≤D1≤10mm.

[0013] In one embodiment of the present invention, the distance between the second mixing plate and the first mixing plate is defined as D2, which satisfies the condition: 1 mm ≤ D2 ≤ 3 mm.

[0014] In one embodiment of the present invention, the inner diameter of the reaction tube is 10 mm to 100 mm, and the tube length of the reaction container is 200 mm to 1000 mm.

[0015] In one embodiment of the present invention, the acoustic resonance mechanism comprises:

[0016] A frame, wherein the frame is provided with the mounting platform;

[0017] A driving member, wherein the driving structure is fixed below the mounting platform and is drivingly connected to the mounting platform; and

[0018] An elastic component is fixed to the frame and connected to the mounting platform.

[0019] In one embodiment of the present invention, the driving member is a vibration exciter, and the vibration frequency of the vibration exciter is 1 Hz to 100 Hz.

[0020] The acoustic resonance continuous flow reaction device of the technical solution of the present invention comprises a continuous flow reactor, an acoustic resonance mechanism and a mixing structure. Among them, the continuous flow reactor comprises a plurality of reaction tubes arranged in series, a containing cavity for accommodating reactants is formed in the reaction tube, the reaction tube has an axial direction and a radial direction, and the reaction tube is also provided with a feed port and a discharge port connected to the containing cavity, and the feed port and the discharge port are respectively arranged at both ends of the axial direction of the reaction tube. By connecting a plurality of reaction tubes in series, the residence time of the reactants in the reaction cavity can be extended, thereby meeting the continuous reaction requirements of the device. In addition, a mixing structure is also provided in the reaction cavity, and the mixing structure is arranged along the axial direction and radial direction of the reaction tube. The acoustic resonance mechanism is provided with a mounting table, and a plurality of reaction tubes in the continuous flow reactor are fixed to the surface of the mounting table in sequence. When working, the acoustic resonance mechanism drives the continuous flow reactor to generate resonant vibration to drive the reactants contained in the containing cavity to move, so that the heavy phase liquid and the light phase gas in the containing cavity break through the original phase interface, and produce strong macroscopic mixing. Since a mixing structure is also provided in the accommodating chamber, the multiphase fluid in the accommodating chamber generates convection and passes through the mixing structure under the drive of the resonant vibration. The mixing structure can generate shear force on multiple fluids, causing the multiphase fluid to generate vortexes and perform local mixing enhancement. At the same time, the dispersed structure can also generate micro-amplitude vibrations under the vibration system, which can cause the reactants contained in the accommodating chamber to generate microscopic mixing enhancement. Compared with the existing acoustic resonance reaction device, the acoustic resonance continuous flow reaction device of the technical solution of the present invention can realize continuous flow reaction, and can also meet the gas-liquid-solid multiphase fluid reaction, which is convenient for engineering amplification application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of an acoustic resonance continuous flow reaction device of the present invention;

[0023] Figure 2 for Figure 1 A schematic longitudinal section diagram of a mesonic resonance continuous flow reaction device;

[0024] Figure 3 for Figure 1 Schematic diagram of the internal structure of the acoustic resonance continuous flow reaction device;

[0025] Figure 4 It is a schematic cross-sectional view of a reaction tube of the present invention.

[0026] Description of Figure Numbers:

[0027]

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

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the 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 clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 technical features indicated. 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 in the full 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 satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such 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 an acoustic resonance continuous flow reaction device 1000 .

[0034] Reference Figures 1 to 4The acoustic resonance continuous flow reaction device 1000 of the present invention comprises: a continuous flow reactor 100, wherein the continuous flow reactor 100 comprises a plurality of reaction tubes 10 arranged in series, wherein a receiving cavity 11 for receiving reactants is formed in the reaction tube 10, wherein the reaction tube 10 has an axial direction and a radial direction, and wherein the reaction tube 10 is further provided with a feed port 15 and a discharge port 17 communicating with the receiving cavity 11, wherein the feed port 15 and the discharge port 17 are respectively arranged at two ends of the axial direction of the reaction tube 10;

[0035] An acoustic resonance mechanism 200, wherein the acoustic resonance mechanism 200 is provided with a mounting platform 220, and a plurality of the reaction tubes 10 are sequentially fixed on the surface of the mounting platform 220, and the acoustic resonance mechanism 200 drives the continuous flow reactor 100 to vibrate so as to cause macroscopic mixing of the reactants contained in the containing chamber 11; and

[0036] The mixing structure 13 is disposed in the containing chamber 11 and arranged along the axial direction and the radial direction of the reaction tube 10 . The mixing structure 13 can cause microscopic mixing of the reactants contained in the containing chamber 11 .

[0037] The acoustic resonance continuous flow reaction device 1000 of the technical solution of the present invention comprises a continuous flow reactor 100, an acoustic resonance mechanism 200 and a mixing structure 13. Among them, the continuous flow reactor 100 comprises a plurality of reaction tubes 10 arranged in series, a receiving chamber 11 for accommodating reactants is formed in the reaction tube 10, the reaction tube 10 has an axial direction and a radial direction, and the reaction tube 10 is also provided with a feed port 15 and a discharge port 17 connected to the receiving chamber 11, and the feed port 15 and the discharge port 17 are respectively arranged at both ends of the axial direction of the reaction tube 10. By connecting a plurality of reaction tubes 10 in series, the residence time of the reactants in the reaction chamber can be extended, thereby meeting the continuous reaction requirements of the device. Specifically, the material of the reaction tube 10 can be a corrosion-resistant material such as glass, metal, Teflon, etc. The number of reaction tubes 10 can be two, three, five, or ten, etc., and the technician can reasonably set it according to the specific reaction requirements, which will not be repeated here. The feed port 15 and the discharge port 17 of each reaction tube 10 are arranged at both ends of the axial direction of the reaction tube 10, so that it is convenient to use a U-shaped tube to connect adjacent reaction tubes 10. By arranging the feed port 15 and the discharge port 17 at both ends of the axial direction of the reaction tube 10, after the reactant enters the containing chamber 11 through the feed port 15, it needs to flow into the entire length of the reaction tube 10 before it can flow out through the discharge port 17, so that the time the reactant stays in the reaction tube 10 can be extended as much as possible, thereby improving the reaction effect.

[0038] A mixing structure 13 is also provided in the reaction chamber, and the mixing structure 13 is arranged along the axial direction and radial direction of the reaction tube 10. The mixing structure 13 is extended along the axial direction of the reaction tube 10, so that the reactants can be evenly mixed when flowing through the axial direction of the reaction tube 10. In addition, the mixing structure 13 is arranged along the radial direction of the reaction tube 10, which can also reduce the flow speed of the reactants in the axial direction, prolong the residence time of the reactants in the reaction tube 10, and improve the mixing effect of the reactants.

[0039] It can be understood that the acoustic resonance mechanism 200 is provided with a mounting platform 220, and each reaction tube 10 in the continuous flow reactor 100 is fixed to the surface of the mounting platform 220 in sequence, and each reaction tube 10 is detachably fixed to the surface of the mounting platform 220 by a fixing member. Specifically, the axial direction of the reaction tube 10 is parallel to the surface of the mounting platform 220, and a plurality of reaction tubes 10 are arranged in sequence to facilitate the flow of reactants. During operation, the acoustic resonance mechanism 200 drives the continuous flow reactor 100 to generate resonant vibrations, so as to drive the reactants contained in the accommodating chamber 11 to move, so that the heavy phase liquid and the light phase gas in the accommodating chamber 11 break through the original phase interface, and produce strong macroscopic mixing. Since a mixing structure 13 is also provided in the accommodating chamber 11, under the drive of the resonant vibration, the multiphase fluid in the accommodating chamber 11 generates convection and passes through the mixing structure 13, and the mixing structure 13 can generate shear force on multiple fluids, so that the multiphase fluid generates vortexes, and performs local mixing enhancement. At the same time, the dispersed structure can also generate micro-amplitude vibrations under the vibration system, which can cause the reactants contained in the accommodating chamber 11 to generate microscopic mixing enhancement. Compared with the existing acoustic resonance reaction devices, the acoustic resonance continuous flow reaction device 1000 of the technical solution of the present invention can realize continuous flow reaction and also meet the requirements of gas-liquid-solid multiphase fluid reaction, which is convenient for engineering scale-up application.

[0040] Further, refer to Figures 2 to 3 In one embodiment of the present invention, the acoustic resonance mechanism 200 includes a frame 210, a driving member 230 and an elastic component 280, the frame 210 is provided with the mounting platform 220; the driving structure is fixed under the mounting platform 220 and is in transmission connection with the mounting platform 220; the elastic component 280 is fixed to the frame 210 and is connected to the mounting platform.

[0041] In the technical solution of an embodiment of the present invention, the frame 210 is roughly a square frame structure, and the mounting platform 220 is arranged on the top of the frame 210. The frame 210 provides a mounting carrier for the driving member 230, the elastic component 280 and the reaction control system. The material of the frame 210 can be metal or marble, etc., so as to ensure the strength and life of the frame 210. The frame 210 can also be fixed to the ground by bolts and other connecting parts, and a corresponding limit structure can also be arranged on the ground to limit the movement of the frame 210 during the vibration process, thereby affecting the reaction device.

[0042] The mounting platform 220 is generally in a plate-like structure and is arranged parallel to the horizontal plane. The surface of the mounting platform 220 is also provided with fixing holes, so that the reaction tube 10 can be detachably fixed to the surface of the mounting platform 220 by fitting the fixing parts with the fixing holes.

[0043] Furthermore, the driving member 230 may be a vibrator 231, which is connected to the mounting platform 220 via a vibration plate 250 and a transmission rod 270. The main function of the vibrator 231 is to generate vibrations, and the frequency and corresponding stroke of the vibrations are important parameters for generating gravitational acceleration. Therefore, the vibration parameters of the vibrator 231 are also extremely important. In the technical solution of one embodiment of the present invention, the frequency range of the vibrator 231 is 1 Hz to 100 Hz, and the (peak-to-peak) stroke range of the vibrator 231 is 10 mm to 100 mm, where the (peak-to-peak) stroke refers to the distance between two wave peaks of the vibrator 231 within one vibration cycle. The vibration frequency and stroke of the vibrator 231 can be adjusted according to actual conditions.

[0044] The maximum peak acceleration of the exciter 231 in the sine wave is 150g (g is the acceleration due to gravity, which is about 9.8m / s). For example, the electromagnetic exciter 231 of the Danish B&K brand can be used, or the electromagnetic / electro-hydraulic / electric exciter 231 with a larger stroke can be used. Specifically, the vibration acceleration is calculated as follows: Maximum acceleration = 0.002×f 2 (frequency HZ) × D (stroke mm pp). The exciter 231 resonates with the spring assembly and can provide an amplitude of more than 10 mm. Specifically, the acoustic resonance mechanism 200 measures the natural frequency of the multiphase fluid by a simple harmonic force excitation method. If the amplitude increases rapidly at a certain frequency range, it can be determined that resonance has occurred.

[0045] The elastic component 280 is a spring group, which includes a spring and a guide column. The spring is sleeved on the side wall of the guide column. One end of the spring elastically abuts against the frame, and the other end elastically abuts against the vibration plate 250. The exciter 231 vibrates, and then drives the spring to vibrate. Since the spring has elastic force, it can drive the vibration plate 250 to vibrate relative to the frame.

[0046] Furthermore, the number of the exciter 231 can be one, or two exciters 231 can be superimposed. When there is only one exciter 231, the exciter 231 is directly connected to the mounting platform 220 through the vibration plate 250 and the transmission rod 270 provided above the exciter 231. A plurality of spring groups are provided at intervals on the edge of the vibration plate 250 to enhance the stability of the vibration plate 250. When there are two exciters 231, a transmission plate 260 is provided between the two exciters 231, and the upper exciter 231 is fixed to the surface of the transmission plate 260, and a spring group is also provided between the transmission plate 260 and the vibration plate 250. In this way, the superposition of vibration energy can be achieved between the transmission plate 260 and the vibration plate 250, and the vibration effect can be achieved quickly.

[0047] Further, refer to Figure 4 In one embodiment of the present invention, the mixing structure 13 includes a first mixing plate 131, the first mixing plate 131 has a length direction and a width direction, the length direction extends along the axial direction of the reaction tube 10, and the width direction extends along the radial direction of the reaction tube 10. The first mixing plate 131 is also provided with a plurality of through holes 1311, and the acoustic resonance mechanism 200 vibrates along the extension direction of the central axis of the through hole 1311.

[0048] In the technical solution of one embodiment of the present invention, the mixing structure 13 has multiple forms, and the first mixing plate 131 is a part of the structure of the mixing structure 13. The first mixing plate 131 is also called an axial plate. The number of the first mixing plates 131 can be one or more, and the multiple mixing plates are arranged at intervals along the vibration direction of the acoustic resonance mechanism 200. The first mixing plate 131 is a plate with a certain elasticity, and the shape of the through hole 1311 can be a round hole, a square hole, a special-shaped hole, etc. The multiple through holes 1311 are arranged at intervals, and the multiple through holes 1311 can also be arranged in an array. The central axis of the through hole 1311 is consistent with the overall direction of the acoustic resonance mechanism 200. In this way, the first mixing plate 131 can vertically connect the liquid that produces convection by shearing and disperse the liquid into multiple thin streams, thereby increasing the contact area between the gas and the liquid. At the same time, the first mixing plate 131 can also vibrate micro-vibration under the action of inertia, further accelerating the renewal of the liquid interface and strengthening the mesoscopic / microscopic mixing of the multiphase fluid.

[0049] Please continue to refer to Figure 4 In one embodiment of the present invention, the mixing structure 13 also includes a plurality of second mixing plates 133, the second mixing plates 133 are fixed to the cavity wall of the accommodating cavity 11, and extend toward the first mixing plate 131, and a passage 1331 is formed between the second mixing plates 133 and the first mixing plates 131, and the plurality of second mixing plates 133 are arranged at intervals along the axial direction of the reaction tube 10.

[0050] In the technical solution of one embodiment of the present invention, the second mixing plate 133 is also a part of the structure of the mixing structure 13. A plurality of second mixing plates 133 also become radial plates, so that a plurality of second mixing plates 133 arranged at intervals can separate the accommodating chamber 11 into a plurality of interconnected reaction zones. The second mixing plate 133 can be a semicircular plate with a notch, and the notch can be formed as a through hole 1311 of the reactant. Or it can be an arc-shaped plate with an area smaller than that of the semicircular plate, for example, a 1 / 3 circular plate, a 2 / 5 circular plate, etc. At this time, the second mixing plate 133 can be provided with no notch, and the gap between the second mixing plate 133 and the first mixing plate 131 can be formed as a through hole 1311 of the reactant. The second mixing plate 133 can be arranged on one side of the first mixing plate 131, or the second mixing plate 133 can be arranged on two opposite surfaces of the first mixing plate 131. The arrangement of the second mixing plate 133 can reduce the flow rate of the liquid in the reaction tube 10, prolong the time that the reactant stays in the reaction chamber, and thus improve the efficiency of the reaction.

[0051] In one embodiment, the inner diameter of the reaction tube 10 is 10 mm to 100 mm, and the length of the reaction container is 200 mm to 1000 mm.

[0052] The inner diameter of the reaction tube 10 is 10 mm to 20 mm, and the length of the reaction tube 10 is 200 mm to 500 mm. When the inner diameter of the reaction tube 10 is reduced, the processing difficulty of the reaction tube 10 is relatively increased. Therefore, the inner diameter of the reaction tube 10 is set to be greater than or equal to 10 mm to facilitate the processing of the reaction tube 10; when the inner diameter of the reaction tube 10 is too large, it will cause the reactants in some areas of the accommodating chamber 11 to be difficult to mix and reduce the reaction efficiency. Therefore, the inner diameter of the reaction tube 10 is set to be less than or equal to 20 mm, so as to facilitate the processing of the reaction tube 10 while ensuring a good mixing effect of the agitator. The length of the reaction tube 10 increases with the increase of the inner diameter of the reaction tube 10, and decreases with the decrease of the inner diameter of the reaction tube 10, so as to facilitate the processing of the reaction tube 10. It can be understood that in the above embodiments, when the reaction tube 10 is tubular, the inner diameter of the reaction tube 10 is its actual inner diameter, and when the reaction tube 10 is other shapes, the inner diameter of the reaction tube 10 is its equivalent inner diameter.

[0053] Please continue to refer to Figure 4 In one embodiment of the present invention, the distance between two adjacent second mixing plates 133 in the axial direction is defined as D1, which satisfies the condition: 2mm≤D1≤10mm.

[0054] In the technical solution of one embodiment of the present invention, by setting the two adjacent second mixing plates 133 to 2 mm to 10 mm, the flow rate in the containing chamber 11 can be effectively reduced, the residence time of the reactants in the reaction chamber can be prolonged, and the mixing effect of the reactants in each reaction zone can be effectively improved by combining the effect of acoustic resonance. Figure 4 In one embodiment of the present invention, the distance between the second mixing plate 133 and the first mixing plate 131 is defined as D2, which satisfies the condition: 1mm≤D2≤3mm. The distance between the second mixing plate 133 and the first mixing plate 131 refers to the minimum distance from the end face of the second mixing plate 133 to the surface of the first mixing plate 131. The minimum distance from the end face of the second mixing plate 133 to the surface of the first mixing plate 131 ranges from 1mm to 3mm, so that the second mixing plate 133 can have a good flow blocking effect, while not affecting the flow of reactants between adjacent reaction zones.

[0055] It should be noted that the slurry reactant can be connected to the feed port 15 of the first reaction tube 10 through a feed pipe, and the end of the feed pipe is porous and forms a porous jet, which is conducive to rapid mixing. Among them, the pore size is in the micron to millimeter level, and the pore size is related to the solid particle size and concentration of the slurry material, preferably 5 times the solid particle size. The gas and the slurry are mixed through a three-way, and then the feeding is realized through the feed pipe sleeve. Since the slurry material is dispersed into droplets and airflow at the end of the feed pipe to enter the reaction chamber, it then flows out of the multi-stage series cavity after the residence time is extended. The end of the continuous flow reactor 100 is connected with a heat exchanger and a gas-liquid separator to realize product collection and gas-liquid separation. The continuous flow reactor 100 can realize continuous feeding and discharging, and keep the mass of the material in the reactor relatively balanced, and will not affect the amplitude and resonance frequency of the three-mass vibration platform.

[0056] Compared with the original intermittent acoustic resonance mixer, the acoustic resonance continuous flow reaction device 1000 in the technical solution of the present invention realizes continuous production of materials, breaks through the bottleneck of process amplification, and can quickly realize process optimization to production amplification. In addition, compared with the original intermittent acoustic resonance mixer, the acoustic resonance continuous flow reaction device 1000 in the technical solution of the present invention has higher heat transfer performance, more uniform temperature control and rapid removal of excess heat. The continuous flow reactor 100 used in the acoustic resonance continuous flow reaction device 1000 in the technical solution of the present invention also has the advantages of the plug flow of the tubular reactor, which can ensure better product quality stability and uniformity. Moreover, the combination of the acoustic resonance mechanism 200 in the technical solution of the present invention and the mixing structure 13 in the continuous flow reactor 100 can also realize efficient macroscopic, mesoscopic and microscopic full-scale mixing of gas-liquid-solid multiphase fluids. From macroscopic acoustic resonance mixing to microstructure and micro-vibration enhanced microscopic mixing, the mass transfer performance of the acoustic resonance continuous flow reactor 100 is greatly improved, and it is applied to a wider range of reaction, extraction, absorption and other process flows and chemical, pharmaceutical, new materials, biological and other fields, and it is easier to realize automatic control than the original intermittent acoustic resonance mixer. At the same time, due to the coupling of the continuous flow reactor 100 and the acoustic resonance mechanism 200 in the technical solution of the present invention, the continuous mixing and reaction of materials is also realized, which greatly improves the production efficiency and mixing effect, reduces material consumption and energy consumption, and realizes safe and clean production.

[0057] 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 changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An acoustic resonance continuous flow reaction device, characterized in that: include: A continuous flow reactor, the continuous flow reactor comprising a plurality of reaction tubes arranged in series, wherein a receiving cavity for receiving reactants is formed in the reaction tube, the reaction tube has an axial direction and a radial direction, and the reaction tube is further provided with a feed inlet and a discharge inlet communicating with the receiving cavity, the feed inlet and the discharge inlet are respectively arranged at two ends of the reaction tube in the axial direction; An acoustic resonance mechanism, wherein the acoustic resonance mechanism is provided with a mounting platform, and a plurality of the reaction tubes are sequentially fixed on the surface of the mounting platform, and the acoustic resonance mechanism drives the continuous flow reactor to vibrate so as to cause macroscopic mixing of the reactants contained in the containing chamber; as well as A mixing structure, which is disposed in the containing chamber and arranged along the axial direction and radial direction of the reaction tube, and can cause microscopic mixing of reactants contained in the containing chamber; The mixing structure includes a first mixing plate and a plurality of second mixing plates, the first mixing plate having a length direction and a width direction, the length direction extending along the axial direction of the reaction tube, and the width direction extending along the radial direction of the reaction tube, the first mixing plate is also provided with a plurality of through holes, the acoustic resonance mechanism vibrates along the extension direction of the central axis of the through holes, the first mixing plate is an elastic plate, the second mixing plate is fixed to the cavity wall of the accommodating cavity and extends toward the first mixing plate, a through opening is formed between the second mixing plate and the first mixing plate, and the plurality of second mixing plates are arranged at intervals along the axial direction of the reaction tube.

2. The acoustic resonance continuous flow reaction device according to claim 1, characterized in that: There are a plurality of the first mixing plates, and the plurality of mixing plates are arranged at intervals along the vibration direction of the acoustic resonance mechanism.

3. The acoustic resonance continuous flow reaction device according to claim 1, characterized in that: A plurality of the second mixing plates are disposed on two opposite surfaces of the first mixing plate.

4. The acoustic resonance continuous flow reaction device according to claim 1, characterized in that: The distance between two adjacent second mixing plates in the axial direction is defined as D1, which satisfies the condition: 2mm≤D1≤10mm.

5. The acoustic resonance continuous flow reaction device according to claim 4, characterized in that: The distance between the second mixing plate and the first mixing plate is defined as D2, which satisfies the condition: 1 mm ≤ D2 ≤ 3 mm.

6. The acoustic resonance continuous flow reaction device according to claim 1, characterized in that: The inner diameter of the reaction tube is 10 mm to 100 mm, and the length of the reaction tube is 200 mm to 500 mm.

7. The acoustic resonance continuous flow reaction device according to any one of claims 1 to 6, characterized in that: The acoustic resonance mechanism comprises: A frame, wherein the frame is provided with the mounting platform; A driving member, the driving member is fixed below the mounting platform and is drivingly connected to the mounting platform; and An elastic component is fixed to the frame and connected to the mounting platform.

8. The acoustic resonance continuous flow reaction device according to claim 7, characterized in that: The driving component is a vibrator, and the vibration frequency of the vibrator is 1 Hz to 100 Hz.

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