A microchannel mixer
By utilizing a multi-layer plate-structured microchannel mixer, the problem of low mixing efficiency in existing microchannel mixers is solved by leveraging helical flow and turbulence effects. This achieves high-efficiency mixing and large throughput, enhancing process adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ELECTRONICS SYST ENG NO 2 CONSTR
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-28
AI Technical Summary
Existing microchannel mixers have low mixing efficiency, small throughput, are sensitive to changes in flow rate and flow ratio, and have poor process flexibility.
It adopts a multi-layer plate structure, including a flow channel plate, a central blind flow channel plate, a vortex flow channel plate and a hollow flow channel plate. It achieves efficient mixing through spiral flow and turbulence effect. The outer diameters of each flow channel plate are the same and correspond one-to-one, which facilitates processing and assembly.
It improves mixing efficiency, expands processing capacity, enhances adaptability to different working conditions, has a compact structure, and offers great process flexibility.
Smart Images

Figure CN224558614U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to fluid mixing technology, and in particular to a microchannel mixer. Background Technology
[0002] Microchannel mixers are widely used in chemical and pharmaceutical industries, especially in applications requiring rapid and uniform mixing. Specifically, through microchannel design, they utilize the high-speed shearing and turbulence effects of fluids within tiny channels to achieve a more efficient mixing process than conventional mixers. However, commonly used microchannel mixers, such as T-type, Y-type, and serpentine structures, have low mixing efficiency, small throughput, and are sensitive to changes in flow rate and flow ratio, exhibiting poor process flexibility. Utility Model Content
[0003] Purpose of the utility model: The purpose of this utility model is to provide a microchannel mixer with high mixing efficiency and high process flexibility.
[0004] Technical solution: To achieve the above objectives, the present invention provides a microchannel mixer, comprising an inlet cover plate and an outlet cover plate. The inlet cover plate includes inlets for different fluids, and the outlet cover plate includes an outlet for a mixed fluid. Between the inlet cover plate and the outlet cover plate are multiple sets of flow channel plates for dispersing the fluid, guiding the fluid flow direction, and causing the fluid to form a spiral flow.
[0005] The flow channel plate, from the inlet cover plate to the outlet cover plate, includes a diversion flow channel plate, a central blind flow channel plate, an alternating vortex flow channel plate, and a hollow flow channel plate.
[0006] The inlet cover plate, multiple flow channel plates, and outlet cover plate are fastened together by bolts.
[0007] The flow distribution plate includes a central flow channel one, and multiple extended flow channels are uniformly extended around the central flow channel one. The central flow channel one corresponds to different fluid inlets.
[0008] The periphery of the central blind flow channel plate includes a uniformly arranged peripheral flow channel, which corresponds to the outer extension flow channel.
[0009] The vortex flow channel plate includes a second peripheral flow channel that is evenly arranged around its periphery, and a vortex flow channel in the middle. Multiple gradient flow channels extend evenly around the vortex flow channel. The second peripheral flow channel and the multiple gradient flow channels are arranged alternately and correspond to the first peripheral flow channel.
[0010] Among them, the multi-channel gradient flow channel is tilted at a certain angle counterclockwise or clockwise when extended, with the central axis of the vortex flow channel plate as the reference.
[0011] The size of the gradient flow channel gradually increases from the extension point.
[0012] The hollow flow channel plate includes peripheral flow channels three evenly arranged around its perimeter and central flow channels two in its center. The peripheral flow channels three correspond to the peripheral flow channels two.
[0013] Among them, the multiple sets of vortex flow channel plates are rotated counterclockwise or clockwise by a certain angle with the central axis of the vortex flow channel plate as the reference. Specifically, one of the peripheral flow channels three of the hollow flow channel plate corresponds to the gradient flow channel on one side of the vortex flow channel plate and corresponds to the peripheral flow channel two on the other side of the vortex flow channel plate.
[0014] Beneficial effects: This utility model has the following advantages: 1. Through the synergistic effect of multiple flow channel plates, the mixing effect is improved and the processing capacity is expanded, making it more adaptable to different working conditions; 2. The multi-layer plate structure is adopted, with each flow channel plate having the same outer diameter and corresponding flow channels, which facilitates processing and assembly, making the entire mixer structure compact; 3. By increasing the number of hollow flow channel plates and vortex flow channel plates, the process can be adjusted, thereby increasing the process flexibility. Attached Figure Description
[0015] Figure 1 Front view of a microchannel mixer;
[0016] Figure 2 Exploded view of a microchannel mixer;
[0017] Figure 3 Schematic diagram of the vortex flow channel plate angle rotation;
[0018] Figure 4 Schematic diagram of the flow channel plate structure;
[0019] Figure 5 This is a schematic diagram of the structure of the blind channel plate.
[0020] Figure 6 This is a schematic diagram of a vortex flow channel plate structure.
[0021] Figure 7 This is a schematic diagram of a hollow flow channel plate structure. Detailed Implementation
[0022] The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings.
[0023] like Figures 1-7As shown, the microchannel mixer of this invention includes an inlet cover plate 1 and an outlet cover plate 2. A static mixing element is located between the inlet cover plate 1 and the outlet cover plate 2. The static mixing element, from the inlet cover plate 1 to the outlet cover plate 2, includes element group one, element group two, and element three in sequence. Element group one includes a flow divider plate 3 and a blind flow channel plate 4. Element group two is composed of alternating vortex flow channel plates 5 and hollow flow channel plates 6. Element three is a vortex flow channel plate 5. The flow divider plate 3 is adjacent to the inlet cover plate 1, and the blind flow channel plate 4 is adjacent to the vortex flow channel plate 5.
[0024] The inlet cover plate 1, the static mixing element, and the outlet cover plate 2 are fastened together by multiple sets of bolts.
[0025] The inlet cover 1 includes multiple fluid inlets, and the outlet cover 2 includes fluid outlets.
[0026] The outer diameters of the flow divider plate 3, the blind flow channel plate 4, the vortex flow channel plate 5, and the hollow flow channel plate 6 are the same.
[0027] The flow channel plate 3 includes bolt holes 3.1 around its perimeter and a central flow channel 3 for different fluid flows (e.g., ...). Figure 4 As shown in the diagram (3.3 represents the flow channel for fluid A, and 3.4 represents the flow channel for fluid B), multiple extended flow channels 3.2 are uniformly extended around the central flow channel 1. The central flow channel 1 corresponds to the inlet of different fluids.
[0028] The periphery of the central blind flow channel plate 4 includes bolt holes 4.1 and evenly distributed peripheral flow channels 4.2.
[0029] The vortex-shaped flow channel plate 5 includes bolt holes 5.1 around its periphery and evenly arranged peripheral flow channels 5.2. The center includes a vortex-shaped flow channel 5.4. Multiple gradient flow channels 5.3 extend evenly around the vortex-shaped flow channel 5.4. These gradient flow channels 5.3 are inclined at a certain angle, counterclockwise or clockwise, with the central axis of the vortex-shaped flow channel plate 5 as a reference. The dimensions of the gradient flow channels 5.3 gradually increase from the extension point. The peripheral flow channels 5.2 and the gradient flow channels 5.3 are arranged alternately and evenly on the vortex-shaped flow channel plate 5.
[0030] The hollow flow channel plate 6 has bolt holes 6.1 around its periphery and evenly arranged peripheral flow channels 6.2, and a central flow channel 6.3 in its center.
[0031] The number of peripheral channels 3.2 on the flow divider plate 3, peripheral channels 4.2 on the central blind flow channel plate 4, peripheral channels 6.2 on the hollow flow channel plate 6, and peripheral channels 5.2 and gradient channels 5.3 on the vortex flow channel plate 5 are the same, and the channels correspond to each other.
[0032] The flow divider plate 3 and the central blind flow divider plate 4 can initially divide the different fluids entering the mixer. Specifically, the central flow channel 1 on the flow divider plate 3 is used to introduce a specific fluid, and the outer flow channel 3.2 initially disperses the fluid entering the central flow channel. The peripheral flow channel 4.2 of the central blind flow divider plate 4 is connected to the outer flow channel 3.2 of the flow divider plate 3, receives the initially dispersed fluid, and only allows the fluid to flow through the peripheral flow channel.
[0033] The peripheral channel 5.2 on the vortex channel plate 5 corresponds to part of the peripheral channel 4.2 and receives fluid from the central blind channel plate 4 or the hollow channel plate 6. The multi-channel gradient channel 5.3 corresponds to another part of the peripheral channel 4.2 and receives fluid from the central blind channel plate 4 or the hollow channel plate 6. The fluid enters the multi-channel gradient channel 5.3 and is guided into the vortex channel 5.4 region, where the fluid can quickly reach a stable turbulent state. Finally, it forms a spiral upward trend in the central channel 6.3 and is further mixed before finally flowing out from the mixing outlet.
[0034] The peripheral flow channel 6.2 and the central flow channel 6.3 on the hollow flow channel plate 6 are used to receive fluid from the previous vortex flow channel plate 5, providing a straight path or flattening the flow field. The vortex flow channel plates 5 and the hollow flow channel plates 6 are arranged alternately, and multiple sets of vortex flow channel plates 5 are rotated counterclockwise or clockwise around the central axis of the vortex flow channel plate 5 by a certain angle. This angle is related to the total number of gradient flow channels 5.3 and peripheral flow channels 5.2. Specifically, one peripheral flow channel 6.2 of the hollow flow channel plate 6 corresponds to the gradient flow channel 5.3 of the vortex flow channel plate 5 on one side, and to the peripheral flow channel 5.2 of the vortex flow channel plate 5 on the other side. With this structure, the fluid can form a continuous spiral flow in the middle of the mixer, allowing fluids of different materials to be fully mixed.
Claims
1. A microchannel mixer, characterized in that, It includes an inlet cover plate (1) and an outlet cover plate (2). The inlet cover plate (1) includes different fluid inlets, and the outlet cover plate (2) includes a mixed fluid outlet. Between the inlet cover plate (1) and the outlet cover plate (2) are multiple sets of flow channel plates that disperse the fluid, guide the fluid flow direction, and make the fluid form a spiral flow. The flow channel plates, from the inlet cover plate (1) to the outlet cover plate (2), successively include a diversion flow channel plate (3), a central blind flow channel plate (4), alternating vortex flow channel plates (5), and a hollow flow channel plate (6). The middle part of the flow channel plate (3) includes a central flow channel 1, and multiple extended flow channels (3.2) are uniformly extended around the central flow channel 1. The periphery of the central blind flow channel plate (4) includes a uniformly arranged peripheral flow channel (4.2). The vortex flow channel plate (5) includes a peripheral flow channel two (5.2) evenly arranged around its periphery, and a vortex flow channel (5.4) in the middle. Multiple gradient flow channels (5.3) are evenly extended around the vortex flow channel (5.4). The peripheral flow channel two (5.2) and the multiple gradient flow channels (5.3) are arranged alternately. The hollow flow channel plate (6) includes peripheral flow channels three (6.2) evenly arranged around its periphery, and central flow channels two (6.3) in its center.
2. The microchannel mixer according to claim 1, characterized in that, The inlet cover plate (1), multiple flow channel plates, and outlet cover plate (2) are fastened together by bolts.
3. The microchannel mixer according to claim 1, characterized in that, The central flow channel corresponds to different fluid inlets.
4. The microchannel mixer according to claim 1, characterized in that, The peripheral flow channel (4.2) corresponds to the extended flow channel (3.2).
5. The microchannel mixer according to claim 1, characterized in that, The peripheral flow channel two (5.2) and the multi-channel gradient flow channel (5.3) correspond to the peripheral flow channel one (4.2).
6. The microchannel mixer according to claim 1, characterized in that, When the multi-channel gradient flow channel (5.3) is extended, it is tilted at a certain angle counterclockwise or clockwise with the central axis of the vortex flow channel plate (5) as the reference.
7. The microchannel mixer according to claim 1, characterized in that, The dimensions of the gradient flow channel (5.3) gradually increase from the extension.
8. The microchannel mixer according to claim 1, characterized in that, The peripheral flow channel three (6.2) corresponds to the peripheral flow channel two (5.2).
9. The microchannel mixer according to claim 1, characterized in that, The multiple sets of vortex flow channel plates (5) are rotated counterclockwise or clockwise by a certain angle with the central axis of the vortex flow channel plate (5) as the reference. Specifically, one of the peripheral flow channels three (6.2) of the hollow flow channel plate (6) corresponds to the gradient flow channel (5.3) on the vortex flow channel plate (5) located on one side, and corresponds to the peripheral flow channel two (5.2) on the vortex flow channel plate (5) located on the other side.