Micro-flow continuous flow mixer

Abstract

The utility model provides a micro-flow continuous flow mixer. The micro-flow continuous flow mixer comprises a semi-butterfly-shaped semicircular channel plate, a metal cylinder, a metal cylindrical shell, a rolling bearing, a metal plate, a heat exchange plate, an inner hexagonal cylindrical bolt and a spring washer. The utility model has the following beneficial effects: the blades on the surface shear fluid through the shaking of the metal cylindrical shell, so that the fluid forms small liquid drops, the surface contact area is increased, the small liquid drops of the two fluids are collided and mixed for reaction, the liquid drop speed is higher than that of the fluid, the liquid drops are further collided and mixed in a butterfly-shaped area, the Reynolds coefficient is increased, and the reaction effect is improved. The two fluids flow forwards, continuously penetrate through the semi-butterfly-shaped semicircular channels and are sheared by the blades of the metal cylindrical shell to form liquid drops, then the two liquid drops collide and are mixed, collide and are mixed in the butterfly-shaped region to form the chaotic flow, the process of the action is periodically carried out, the contact area of the two phases is continuously increased, and the reaction is more sufficient. And the material mixing degree is more sufficient.

Description

Technical Field

[0001] This utility model is a micro-flow continuous flow mixer, belonging to the field of micro-chemical devices. Background Technology

[0002] A micromixer is a device used to achieve microscale fluid mixing. Its core objective is to efficiently complete the mixing process in extremely small volumes (microliters or even nanoliters) to meet the demands for precise control, rapid response, and low energy consumption. It is widely used in microfluidic chips, biomedical detection, chemical analysis, and drug development. As a core component of microfluidic technology in the field of microchemical engineering, the micromixer is an important part of microchemical systems and equipment, as well as micrototal analytical systems. In microchemical applications, the mixing capacity of the micromixer affects the performance of the entire system. For example, in the field of environmental monitoring and analysis, pollutant monitoring is indispensable. Micromixers are used for the rapid extraction and mixing of trace pollutants in soil or water samples (such as pesticide residue analysis). Efficient extraction and mixing can shorten mixing time and improve monitoring sensitivity (concentration of hazardous substances).

[0003] Micromixers are small in size, and mixing is achieved through diffusion, shear force, turbulence, or structural design. Based on their driving method, micromixers are divided into active mixers and passive mixers. Active mixers force mixing through external energy (such as electric fields, magnetic fields, ultrasound, and pressure pulses). For example, voltage can change the interfacial tension of the liquid, inducing flow; magnetic particles can move under the influence of an external magnetic field, promoting mixing; and ultrasound can generate pressure nodes within microchannels, inducing microbubbles and turbulence. Passive mixers rely on the shear force and diffusion generated by the fluid's own flow, requiring no external energy. This is achieved through the design of geometry or by placing obstacles in the fluid flow path. Examples include T-type mixers, serpentine (spiral) channels (extending the fluid path and enhancing shear force), and chaotic mixers (geometric structures induce chaotic fluid motion).

[0004] This utility model designs a novel device to improve mixing efficiency, which utilizes an electromagnet to transmit power and a butterfly shape to promote the formation of chaotic convection during fluid mixing, and can meet the production needs of the microchemical field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a micro-flow continuous flow mixer.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A micro-flow continuous flow mixer includes a semi-butterfly-shaped semi-circular channel plate, a metal cylinder, a metal cylindrical shell, a rolling bearing, a metal plate, a heat exchange plate, hexagonal socket head cap screws, and spring washers. The semi-butterfly-shaped semi-circular channel plate is located in the mixer, the metal plate is located at the front of the mixer, and the heat exchange plate is located at the rear of the mixer. Two pipes are excavated at the lower part of the head end of the semi-butterfly-shaped semi-circular channel plate, which are feed pipes for the heat exchange medium. The metal cylinder is located in the semi-butterfly-shaped semi-circular channel of the semi-butterfly-shaped semi-circular channel plate, and the center of the metal cylinder is close to the center of the semi-circle. The metal cylindrical shell is located on the semi-butterfly-shaped semi-circular channel plate and is fitted onto the outer surface of the rolling bearing. Blades are uniformly welded onto the outer surface of the metal cylindrical shell, and the metal cylinder is disposed in the inner ring of the rolling bearing.

[0008] Furthermore, threaded holes are provided at the four corners of the semi-butterfly-shaped semi-circular channel plate, the metal plate, and the heat exchange plate, and spring washers are provided in the threaded holes. The semi-butterfly-shaped semi-circular channel plate, the metal plate, and the heat exchange plate are connected as a whole by the internal hexagonal cylindrical bolts and the spring washers.

[0009] Furthermore, the metal plate has cylindrical holes corresponding to the metal cylinders on one side facing the semi-butterfly-shaped semi-circular channel plate, and the number of metal cylinders is the same as the number of butterflies in the semi-butterfly-shaped semi-circular channel.

[0010] Furthermore, the number of the metal cylindrical shells is the same as the number of butterflies in the semi-butterfly semi-circular channel plate, the number of the rolling bearings is the same as the number of butterflies in the semi-butterfly semi-circular channel, and a circular pipe is opened in the inner center of the heat exchange plate.

[0011] Furthermore, multiple reaction components are installed inside the semi-butterfly-shaped semi-circular channel plate. Each reaction component includes a reaction frame, which includes a V-shaped plate. Two V-shaped plates are welded and fixed together to form an integral reaction frame.

[0012] Furthermore, each side of the V-shaped plate has a setting window, and a reactive cutting mesh is set in the setting window.

[0013] Furthermore, the semi-butterfly-shaped semi-circular channel plate has an installation socket corresponding to the reaction frame on the inner side of the semi-butterfly-shaped semi-circular channel. The ends of the reaction frame are respectively inserted into the corresponding installation sockets, and installation grooves are provided at the corners of the reaction frame.

[0014] Furthermore, the bottom end of the semi-butterfly-shaped semi-circular channel of the semi-butterfly-shaped semi-circular channel plate is provided with a secondary mounting groove located inside the mounting socket, and the head of the mounting groove is a T-shaped end.

[0015] The beneficial effects of this utility model are:

[0016] Two fluids enter the semi-butterfly-shaped semi-circular channel plate through the feed port. As the fluids move within the channel, they push the blades of the cylindrical metal shell to vibrate. This vibration causes the blades on the surface of the cylindrical metal shell to shear the fluids, forming small droplets and increasing the surface contact area. These droplets collide and mix, reacting with each other. Since the droplet velocity is faster than the fluid velocity, further collisions and mixing occur in the butterfly region, increasing the Reynolds coefficient and creating chaotic flow, resulting in a more complete reaction. The two fluids continue to flow forward, passing through the semi-butterfly-shaped semi-circular channel, being sheared by the blades of the cylindrical metal shell to form droplets. These droplets then collide and mix again in the butterfly region, creating chaotic flow. This process is repeated periodically, continuously increasing the contact area between the two phases, resulting in more thorough mixing and a progressively deeper reaction, thus continuously improving the reaction efficiency.

[0017] Through the above-mentioned periodic mixing method, the mixing efficiency of the device is greatly improved. Due to the semi-butterfly and semi-circular channel structure of the device, the fluid flows in and generates pressure by its own flow, achieving continuous flow without the need for external power. The blades of the metal cylindrical shell continuously shear the fluid, avoiding the use of external energy sources such as electromagnetic fields that are difficult to control in traditional active micro mixers. Combined with the mixing characteristics of microchannels that induce chaotic flow in the specially designed structure of passive micro mixers, chemical reactions and heat and mass transfer may occur simultaneously in the micro mixer. In most cases, the micro mixer is a microreactor or a micro-mass transfer, extraction, and absorption device. The heat exchange plate has a circular pipe inside which the heat exchange medium is contained. During the mixing process, chemical reactions and heat and mass transfer occur through the heat exchange medium to achieve the purpose of heat exchange. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This invention discloses a micro-flow continuous flow mixer. A front view of the present invention is shown.

[0020] Figure 2 A schematic diagram of a semi-butterfly-shaped semi-circular channel plate of a micro-flow continuous flow mixer according to this utility model is shown;

[0021] Figure 3 A schematic diagram of the cylindrical metal shell of a micro-flow continuous flow mixer according to this utility model is shown;

[0022] Figure 4 A schematic diagram of the heat exchange plate of a micro-flow continuous flow mixer according to this utility model is shown;

[0023] Figure 5 This invention provides a schematic diagram showing the installation port distribution of a micro-flow continuous flow mixer.

[0024] Figure 6 A schematic diagram of the reaction frame of a micro-flow continuous flow mixer according to the present invention is shown.

[0025] In the diagram: 1. Semi-butterfly-shaped semi-circular channel plate; 2. Metal cylinder; 3. Metal cylindrical shell; 4. Rolling bearing; 5. Metal plate; 6. Heat exchange plate; 7. Hexagonal socket head cap screw; 8. Spring washer; 9. Threaded hole; 10. Circular pipe; 11. Blade; 12. Reactor frame; 13. V-shaped plate; 14. Setting window; 15. Reactor cutting mesh; 16. Mounting socket; 17. Mounting slot; 18. Secondary mounting slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a micro-flow continuous flow mixer, comprising a semi-butterfly-shaped semi-circular channel plate 1, a metal cylinder 2, a metal cylindrical shell 3, a rolling bearing 4, a metal plate 5, a heat exchange plate 6, an internal hexagonal cylindrical bolt 7, and a spring washer 8. The semi-butterfly-shaped semi-circular channel plate 1 is located in the mixer, the metal plate 5 is located at the front of the mixer, and the heat exchange plate 6 is located at the rear of the mixer. Two pipes are excavated at the lower part of the head end of the semi-butterfly-shaped semi-circular channel plate 1, which are feed pipes for the heat exchange medium. The metal cylinder 2 is located in the semi-butterfly-shaped semi-circular channel of the semi-butterfly-shaped semi-circular channel plate 1, and the center of the metal cylinder 2 is close to the center of the semi-circle. The metal cylindrical shell 3 is located on the semi-butterfly-shaped semi-circular channel plate, and the metal cylindrical shell 3 is fitted on the outer surface of the rolling bearing 4. Blades 11 are uniformly welded on the outer surface of the metal cylindrical shell 3, and the metal cylinder is disposed in the inner ring of the rolling bearing 4.

[0028] See Figure 1-4The semi-butterfly-shaped semi-circular channel plate 1, the metal plate 5, and the heat exchange plate 6 are all provided with threaded holes 9 at their four corners. Spring washers 8 are installed in the threaded holes 9. The semi-butterfly-shaped semi-circular channel plate 1, the metal plate 5, and the heat exchange plate 6 are connected as a whole by hexagonal internal cylindrical bolts 7 and spring washers 8. The side of the metal plate 5 facing the semi-butterfly-shaped semi-circular channel plate 1 is provided with cylindrical holes corresponding to the metal cylinders 2. The number of metal cylinders 2 is the same as the number of butterfly shapes in the semi-butterfly-shaped semi-circular channel. The number of metal cylindrical shells 3 is the same as the number of butterfly shapes in the semi-butterfly-shaped semi-circular channel plate. The number of rolling bearings 4 is the same as the number of butterfly shapes in the semi-butterfly-shaped semi-circular channel. A circular pipe 10 is provided in the inner center of the heat exchange plate 6.

[0029] The metal cylindrical outer shell 3 is located on the semi-butterfly-shaped semi-circular channel plate 1, fitted around the bearing, offset from the bearing center, and has blades welded to it. Figure 3 The state of being off-center from the bearing is directly visible. The metal cylinder 2 is located on the semi-butterfly-shaped semi-circular channel plate, close to the center of the circle, and is adapted to the cylindrical hole of the metal plate 5. The bottom of the metal cylinder 2 is inserted into the cylindrical hole. There is one metal plate 5, with a cylindrical hole at the bottom, located at the top of the mixer, which isolates the fluid from the outside. There are four internal hexagonal cylindrical bolts 7 and four spring washers 8, which are used to connect the semi-butterfly-shaped semi-circular channel plate, the metal plate and the heat exchange plate. The butterfly channel plate has four rows of semi-butterfly and semi-circular areas, forming twenty-six semi-butterfly and semi-circular areas, which are connected to the metal plate and the heat exchange plate with bolts. The circular pipe 10 in the middle of the heat exchange plate 6 is used to hold the heat exchange medium, ensuring that the heat exchange plate 6 is in contact with the semi-butterfly-shaped semi-circular channel plate 1, thus completing the heat exchange purpose of the semi-butterfly-shaped semi-circular channel plate 1.

[0030] See Figure 2 , Figure 5 and Figure 6 The semi-butterfly-shaped semi-circular channel plate 1 has multiple reaction components installed inside its semi-butterfly-shaped semi-circular channel. Each reaction component includes a reaction frame 12, which includes a V-shaped plate 13. Two V-shaped plates 13 are welded and fixed together to form an integral reaction frame 12. Each side of the V-shaped plate 13 has a setting window 14, and a reaction cutting mesh 15 is set inside the setting window 14. The semi-butterfly-shaped semi-circular channel plate 1 has a corresponding mounting socket 16 inside its semi-butterfly-shaped semi-circular channel. The ends of the reaction frame 12 are inserted into the corresponding mounting sockets 16, and mounting grooves 17 are set at the corners of the reaction frame 12. The bottom of the semi-butterfly-shaped semi-circular channel plate 1 has a secondary mounting groove 18 located inside the mounting socket 16, and the head of the mounting groove 17 is T-shaped.

[0031] The number of reaction components is multiple, that is... Figure 6 The number of reaction racks 12 is multiple, but only one is shown in the figure. In reality, there are multiple reaction racks 12. The reaction racks 12 are generally cross-shaped. Since there are multiple reaction racks 12, it is necessary to open installation sockets 16 at different positions. However, there are also four installation sockets 16 at each position. Only one installation socket 16 is shown in the figure. In fact, the inner side of the semi-butterfly semi-circular channel on the semi-butterfly semi-circular channel plate 1 is provided with installation sockets 16 at different positions.

[0032] Reaction racks 12 are installed at different positions inside the semi-butterfly-shaped semi-circular channel. The ends of the reaction racks 12 are inserted into the mounting slots 16, aligning the secondary mounting slots 18 and the mounting slots 17 at each corner of the reaction rack 12. A long screw is then inserted into the secondary mounting slots 18 and the mounting slots 17 to fix the reaction racks 12 within the semi-butterfly-shaped semi-circular channel. The head of the mounting slot 17 is T-shaped. Figure 6 As can be seen directly, the T-shaped mounting slot 17 ensures that the head of the configured long screw is inserted into the T-shaped end of the mounting slot 17. Since the existing screw heads are all T-shaped, they match the T-shaped end of the mounting slot 17 to accommodate the head of the screw.

[0033] The shaking of the cylindrical metal shell 3 causes the blades on its surface to shear the fluid, forming small droplets and increasing the surface contact area. The droplets of the two fluids collide and mix, reacting, and the droplet velocity is faster than the fluid velocity. They collide and mix further in the butterfly-shaped region, increasing the Reynolds coefficient and forming a chaotic flow. The reaction is more complete. The two fluids flow forward, continuously passing through the semi-butterfly, semi-circular channel, and are sheared by the blades of the cylindrical metal shell, forming droplets. Then, the two droplets collide and mix in the butterfly-shaped region, forming a chaotic flow. This process is repeated periodically.

[0034] Therefore, by adding a reaction rack 12 inside the channel, the two liquids will collide with the reaction cutting mesh 15, which is an existing filter screen. The reaction cutting mesh 15 further shears the fluid, further forming it into small droplets, increasing the surface contact area, further colliding and mixing, increasing the Reynolds coefficient, and making the reaction more complete.

[0035] In practice, two fluids enter the semi-butterfly-shaped semi-circular channel plate through the feed hole. As the fluids move within the channel, they push the blades of the cylindrical metal shell 3 to vibrate. This vibration causes the blades on the surface of the shell to shear the fluids, forming small droplets and increasing the surface contact area. These droplets collide and mix, reacting with each other. Since the droplet velocity is faster than the fluid velocity, further collisions and mixing occur in the butterfly region, increasing the Reynolds coefficient and creating a chaotic flow. This process leads to a more complete reaction. The two fluids continue to flow forward, passing through the semi-butterfly-shaped semi-circular channel and being sheared by the blades of the cylindrical metal shell, forming droplets. These droplets then collide and mix again in the butterfly region, creating a chaotic flow. This process is repeated periodically, continuously increasing the contact area between the two phases, resulting in more thorough mixing and a progressively deeper reaction, thus continuously improving the reaction efficiency.

[0036] Through the above-mentioned periodic mixing method, the mixing efficiency of the device is greatly improved. Due to the semi-butterfly and semi-circular channel structure of the device, the fluid flows in and generates pressure by its own flow, achieving continuous flow without external power. Through the continuous shearing of the blades of the metal cylindrical shell 3, the external energy source that is difficult to control, such as electromagnetic fields, used in traditional active micro mixers is avoided. Combined with the mixing characteristics of the microchannels that induce chaotic flow in the design of special structures in passive micro mixers, chemical reactions and heat and mass transfer may occur simultaneously in the micro mixer. In most cases, the micro mixer is a microreactor or a micro-mass transfer, extraction, and absorption device. The heat exchange plate has a circular pipe 10, which contains the heat exchange medium. During the mixing process, chemical reactions and heat and mass transfer occur through the heat exchange medium to achieve the purpose of heat exchange.

[0037] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A microflow continuous flow mixer characterized by: It comprises a half-butterfly half-circular channel plate (1), a metal cylinder (2), a metal cylindrical shell (3), a rolling bearing (4), a metal plate (5), a heat exchange plate (6), an inner hexagonal cylindrical bolt (7), and a spring washer (8). The half-butterfly half-circular channel plate (1) is located in the mixer, the metal plate (5) is located in the front part of the mixer, and the heat exchange plate (6) is located in the rear part of the mixer. The head end of the half-butterfly half-circular channel plate (1) is provided with two pipelines in the lower part, the pipelines are feed pipelines for the heat exchange medium, the metal cylinder (2) is located in the half-butterfly half-circular channel of the half-butterfly half-circular channel plate (1), the center of the metal cylinder (2) is close to the center of the half-circular channel, the metal cylindrical shell (3) is located on the half-butterfly half-circular channel plate, the metal cylindrical shell (3) is sleeved on the outer surface of the rolling bearing (4), the outer surface of the metal cylindrical shell (3) is uniformly provided with blades (11), and the metal cylinder is arranged in the inner ring of the rolling bearing (4).

2. A micro-flow continuous flow mixer according to claim 1, wherein: Threaded holes (9) are formed in the four corners of the half-butterfly half-circular channel plate (1), the metal plate (5), and the heat exchange plate (6), the spring washers (8) are arranged in the threaded holes (9), and the half-butterfly half-circular channel plate (1), the metal plate (5), and the heat exchange plate (6) are connected into an integrated whole by the inner hexagonal cylindrical bolts (7) and the spring washers (8).

3. A micro-flow continuous flow mixer according to claim 2, wherein: The metal plate (5) is provided with a cylindrical hole corresponding to the metal cylinder (2) on one side surface facing the half-butterfly half-circular channel plate (1), and the number of the metal cylinders (2) is the same as that of the butterfly shapes in the half-butterfly half-circular channel.

4. A micro-flow continuous flow mixer according to claim 3, wherein: The number of the metal cylindrical shells (3) is the same as that of the butterfly shapes in the half-butterfly half-circular channel plate, the number of the rolling bearings (4) is the same as that of the butterfly shapes in the half-butterfly half-circular channel, and the heat exchange plate (6) is provided with a circular pipeline (10) in the inner middle part.

5. A micro-flow continuous flow mixer according to claim 4, wherein: A plurality of reaction assemblies are mounted on the inner side of the half-butterfly half-circular channel of the half-butterfly half-circular channel plate (1), the reaction assembly comprises a reaction frame (12), the reaction frame (12) comprises a V-shaped plate (13), and two V-shaped plates (13) are welded and fixed to form an integrated reaction frame (12).

6. A micro-flow continuous flow mixer according to claim 5, wherein: A setting window (14) is formed in each side surface of the V-shaped plate (13), and a reaction cutting net (15) is arranged in the setting window (14).

7. A micro-flow continuous flow mixer according to claim 6, wherein: An installation socket (16) corresponding to the reaction frame (12) is formed in the inner side of the half-butterfly half-circular channel of the half-butterfly half-circular channel plate (1), the end part of the reaction frame (12) is inserted into the corresponding installation socket (16), and an installation groove (17) is formed in the end corner of the reaction frame (12).

8. A micro-flow continuous flow mixer according to claim 7, wherein: A vice installation groove (18) is formed in the inner side of the installation socket (16) at the bottom end of the half-butterfly half-circular channel of the half-butterfly half-circular channel plate (1), and the head part of the installation groove (17) is a T-shaped end.

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