Micro-channel fluid treatment device

Abstract

The utility model provides a microchannel fluid treatment device which comprises a mixing chamber, a feeding channel, a discharging channel and a radiator, the mixing chamber has the length direction x, the width direction y and the height direction z, the ratio of the length to the width of the mixing chamber is 2-30, the feeding channel and the discharging channel are arranged at the two ends of the mixing chamber in the length direction respectively, and the radiator is arranged on the feeding channel. The radiation axis of the radiator is parallel to a plane formed by the length direction x and the width direction y and points to the interior of the mixing chamber. Through the device, different fluids, especially fluids with large viscosity differences, can be fully mixed, and the fluctuation of fluid feeding can be effectively compensated, so that the fluids flowing out of the discharging channel are uniformly mixed and distributed in the flowing direction, and the fluctuation of product performance is reduced, thereby realizing better rapid uniform mixing.

Description

Technical Field

[0001] This application relates to the field of fluid mixing, and more specifically to a microchannel fluid processing device. Background Technology

[0002] Mixing different fluids is common in industries such as cosmetics, food, coatings, electronic pastes, rubber and plastics, and fine chemicals. Compared to mixing fluids with similar viscosities, mixing fluids with large viscosity differences faces greater challenges. This is because fluids with large viscosity differences have significant differences in surface tension and rheological properties, making it difficult to achieve rapid mixing with low pressure resistance at the microscopic level. Research has shown that combining ultrasound with microchannels is a method to achieve continuous mixing of fluids with different viscosities. For example, patent CN201410102972.1 combines an ultrasonic transducer with a fluid pipeline, uniformly introducing ultrasonic energy into the fluid pipeline. Utilizing the ultrasonic cavitation effect, a large number of micron-sized cavitation bubbles are generated in the fluid, thereby effectively enhancing liquid mixing.

[0003] However, fluid pumping in industrial production often experiences fluctuations, such as the flow rate of a peristaltic pump fluctuating over time, or the material density fluctuating over time due to the presence of discontinuous phases like air bubbles. Traditional ultrasonic microchannel mixers primarily use plug flow, enabling rapid and uniform mixing of materials radially (perpendicular to the flow direction), but they cannot achieve effective backmixing in the axial direction. Consequently, they cannot effectively compensate for fluctuations in the fluid feed, leading to fluctuations in the performance of the effluent. Utility Model Content

[0004] In view of the above problems, this application provides a microchannel fluid processing device. The technical solution of this application is as follows:

[0005] A microchannel fluid processing device includes: a mixing chamber, a feed channel, a discharge channel, and a radiator.

[0006] The mixing chamber has a length direction x, a width direction y, and a height direction z.

[0007] The length-to-width ratio of the mixing chamber is 2 to 30.

[0008] The feed channel and the discharge channel are respectively located at both ends of the length direction of the mixing chamber.

[0009] The radiation axis of the radiator is parallel to the plane formed by the length direction x and the width direction y, and points towards the mixing chamber.

[0010] Furthermore, the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical.

[0011] Furthermore, the eccentricity e of the ellipse is 0.30 to 0.95.

[0012] Furthermore, the length of the mixing chamber is 40–180 mm.

[0013] Furthermore, the ratio of the length of the mixing chamber to the diameter of the equivalent circle of the radiating surface of the radiator is 10 to 40.

[0014] Furthermore, the radiation axis of the radiator is located in the plane formed by the length direction x and the width direction y and points towards the center of the mixing chamber, and the angle between the radiation axis and the length direction of the mixing chamber is 20° to 90°.

[0015] Furthermore, the radiator includes radiating acoustic energy into the mixing chamber.

[0016] Furthermore, the mixing chamber has an upper main surface, a lower main surface, and side walls. The upper and lower main surfaces are parallel to the plane formed by the length direction x and the width direction y, and the upper and lower main surfaces define the height of the mixing chamber.

[0017] Furthermore, the radiator is located on the side wall and close to the discharge channel.

[0018] The microchannel fluid processing device provided in this application can fully mix different fluids, especially fluids with large viscosity differences, and can effectively compensate for fluctuations in fluid feed, so that the fluid flowing out of the discharge channel is evenly mixed and distributed in the flow direction, reducing product performance fluctuations, thereby achieving better and faster mixing.

[0019] The above description is merely an overview of the technical solution of this application. In order to make the technical means of this application clearer and more understandable, so that those skilled in the art can implement it according to the contents of the specification, and in order to make the above and other objects, features and advantages of this application more obvious and understandable, the following is an example of a specific implementation of this application. Attached Figure Description

[0020] Figure 1 : A side view of a microchannel fluid processing device in one embodiment of this application;

[0021] Figure 2 : A front cross-sectional view of a microchannel fluid processing device in one embodiment of this application;

[0022] Figure 3 : A top view cross-sectional structural diagram of a microchannel fluid processing device in one embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Mixing chamber shell; 11. Upper main surface; 12. Lower main surface; 13. Side wall;

[0025] 20. Feeding channel;

[0026] 30. Discharge channel;

[0027] 40. Radiator;

[0028] 50. Mixing chamber. Detailed Implementation

[0029] The following embodiments of this application are only used to illustrate specific implementation methods of this application, and these embodiments should not be construed as limitations on this application. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this application shall be considered equivalent substitutions and fall within the protection scope of this application.

[0030] Those skilled in the art should understand that, in the disclosure of this application, the terms "first," "second," "third," "fourth," "fifth," etc., are only used to distinguish different structures and do not limit the number of specific structures, connection relationships, etc.; in addition, the orientation or positional relationship indicated by "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0031] Regarding the "length", "width", and "height" in this application, this application defines them using the minimum bounding box method, that is, constructing a minimum bounding box (cubic prism) that can completely enclose the space occupied by the mixing chamber. In this case, "length" refers to the longest side of the bounding box, and "width" and "height" refer to the other two sides of the bounding box. It should be noted that the dimensions of "width" and "height" may be equal or one of them may be larger than the other.

[0032] Correspondingly, the direction in which "length" is located is the "length direction" (e.g., Figures 1-3 The x-direction in the text), the direction where the "width" is located is the "width direction" (e.g., Figures 1-3 The y-direction in the figure), the direction where "height" is located is the "height direction" (e.g., the y-direction), the direction where "height" is located is the "height direction" (e.g., the y-direction in the figure ... Figures 1-3 (in the z direction).

[0033] In this application, the dimensions of the mixing chamber in terms of "length", "width", and "height" are referred to as the length, width, and height of the mixing chamber, respectively.

[0034] In this application, the "center of the mixing chamber" is the centroid of the largest cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y.

[0035] In this application, a radiator refers to a component capable of radiating energy to mix different fluids. Specifically, this includes radiating acoustic energy, electrical energy, magnetic energy, electromagnetic energy, or other forms of energy.

[0036] In this application, the "radiating surface" of a radiator refers to the part of the radiating unit that radiates energy through energy conversion or other means. For example, for an ultrasonic transducer (a radiator that radiates sound energy), the radiating surface is the area in the ultrasonic transducer that can generate mechanical vibration, and its structure may include, for example, piezoelectric materials, vibrating diaphragms, or other transducer elements.

[0037] In this application, the "radiation axis" of a radiator refers to the axis of the "radiation surface" of the radiator, which is an imaginary straight line extending vertically outward from the center of the radiation surface, reflecting the radiation direction of the radiator. For example, for an ultrasonic transducer, its "radiation axis" (also called "acoustic axis") refers to the axis of the "radiation surface" of the ultrasonic transducer, which is an imaginary straight line extending vertically outward from the center of the radiation surface of the ultrasonic transducer.

[0038] In this application, the major axis, minor axis, semi-major axis, semi-minor axis, eccentricity e, etc. of the ellipse are all common parameters of ellipse in geometry, and will not be described in detail here.

[0039] In this application, "diameter of the area equivalent circle" refers to the diameter of a circle when the area of ​​a shape is equal to the area of ​​a circle.

[0040] This application provides a microchannel fluid processing device, such as... Figures 1-3 As shown, it includes: a mixing chamber 50, a feed channel 20, a discharge channel 30, and a radiator 40.

[0041] The mixing chamber has a length direction x, a width direction y, and a height direction z.

[0042] The ratio of the length to the width of the mixing chamber is 2 to 30, for example, it can be 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, or any value and range between them.

[0043] In some specific embodiments, the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical, and the eccentricity e of the ellipse is 0.30 to 0.95, for example, it can be 0.30, 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.85, 0.90, 0.95, or any value and range between them.

[0044] In some specific embodiments, the mixing chamber 50 can be surrounded by a mixing chamber housing 10. That is, the microchannel fluid processing device of this application can include a mixing chamber housing 10, in which the mixing chamber 50 is formed. The mixing chamber housing 10 can be made of metallic materials and / or polymeric materials.

[0045] In some specific embodiments, the specific structure of the mixing chamber 50 is as follows: Figures 1-3 As shown, in this embodiment, it has an upper main surface 11, a lower main surface 12, and a side wall 13. The upper main surface 11 and the lower main surface 12 are parallel to the plane formed by the length direction x and the width direction y. The upper main surface and the lower main surface define the height of the mixing chamber.

[0046] In some specific embodiments, the feed channel and the discharge channel are respectively located at both ends of the length direction of the mixing chamber.

[0047] In some more specific embodiments, the feed channel and the discharge channel are respectively located at both ends of the major axis of the ellipse.

[0048] In some specific embodiments, the radiation axis of the radiator is parallel to the plane formed by the length direction x and the width direction y, and points towards the mixing chamber.

[0049] In some more specific embodiments, when the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical, the radiation axis of the radiator is located in the plane of the ellipse and points to the center of the ellipse.

[0050] In some specific embodiments, the radiation axis of the radiator is located in the plane formed by the length direction x and the width direction y and points towards the center of the mixing chamber. The angle between the radiation axis and the length direction of the mixing chamber is 20° to 90°, for example, it can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, or any value and range therebetween.

[0051] In some more specific embodiments, when the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical, the angle between the radiation axis and the major axis of the ellipse can be 20° to 90°, for example, it can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, or any value and range between them.

[0052] The angle design can improve the mixing efficiency of the fluid, further making the fluid flowing out of the discharge channel 30 more uniformly mixed and distributed in the axial direction (flow direction), and further reducing product performance fluctuations.

[0053] In some more specific embodiments, the radiator is located on the sidewall and close to the discharge channel.

[0054] The length of the mixing chamber can be 40 to 180 mm. In this embodiment, it is specifically 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, or any value and range between them.

[0055] In some more specific embodiments, when the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical, the length 'a' of the major semi-axis of the ellipse is specifically 20 to 90 mm in this embodiment, for example, it can be 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, or any value and range between them.

[0056] In some specific embodiments, the ratio of the length of the mixing chamber to the diameter d of the area equivalent circle of the radiating surface of the radiator is 10 to 40, for example, it can be 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, or any value and range between them.

[0057] In some more specific embodiments, when the maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical, the ratio (a / d) of the length a of the major semi-axis of the ellipse to the diameter d of the area equivalent circle of the radiating surface of the radiator can be 5 to 20, for example, it can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, or any value and range between them.

[0058] Setting the ratio of the length of the mixing chamber to the diameter d of the equivalent circle of the radiating surface of the radiator can improve the mixing efficiency of the fluid, further making the fluid flowing out of the discharge channel 30 more uniformly mixed and distributed in the axial direction (flow direction), and further reducing product performance fluctuations.

[0059] In addition, regarding the size of the feed channel and the discharge channel, the diameter of the equivalent circle of the cross-sectional area of ​​the feed channel and / or the discharge channel is 3mm to 7mm, for example, it can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, or any value and range between them.

[0060] In some specific embodiments, the ratio of the height of the mixing chamber to the diameter of the equivalent circle of the cross-sectional area of ​​the feed channel and / or discharge channel is 0.8-3.0, for example, it can be 0.8, 0.9, or...

[0061] 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, or any value and range thereof.

[0062] In some specific implementations, the ratio of "the area of ​​the maximum cross-section of the plane formed by the mixing chamber in the width direction y and the height direction z" to "the cross-sectional area of ​​the feed channel or discharge channel perpendicular to the flow direction" is 2 to 20, for example, it can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, or any value and range between them.

[0063] In this application, the radiator includes radiating acoustic energy into the mixing chamber. For parameters such as the radiation power, those skilled in the art can make appropriate selections based on the fluid combination to be mixed. More specifically, the radiator used in this embodiment is an ultrasonic transducer. Preferably, the ultrasonic transducer operates at a frequency of 10–50 Hz, for example, 10 Hz, 15 Hz, 20 Hz, 25 Hz, 30 Hz, 35 Hz, 40 Hz, 45 Hz, 50 Hz, or any value and range therebetween, and has a power of 100–300 W, for example, 100 W, 150 W, 200 W, 250 W, 300 W, or any value and range therebetween.

[0064] This application also provides a method for fluid mixing, which uses the above-described microchannel fluid processing device to mix different fluids.

[0065] In some specific embodiments, the different fluids include low-viscosity fluids, high-viscosity fluids, and more specifically, they can be multiple low-viscosity fluids, multiple high-viscosity fluids, or both low-viscosity and high-viscosity fluids.

[0066] The high-viscosity fluid refers to a fluid with a viscosity greater than 100 cp, such as 101 cp, 500 cp, 1000 cp, 2000 cp, 3000 cp, 4000 cp, 5000 cp, 6000 cp, 7000 cp, 8000 cp, 9000 cp, 10000 cp, 20000 cp, 30000 cp, 40000 cp, 50000 cp, 60000 cp, 7 0000cp, 80000cp, 90000cp, 100000cp, 110000cp, 120000cp, 130000cp, 140000cp, 150000cp, 160000cp, 170000cp, 180000cp, 190000cp, 200000cp, or any value and range between them, preferably 200 to 200000cp.

[0067] The viscosity of the low-viscosity fluid refers to a fluid with a viscosity of less than 100 cp, such as 1 cp, 10 cp, 20 cp, 30 cp, 40 cp, 50 cp, 60 cp, 70 cp, 80 cp, 90 cp, 100 cp, or any value and range between them, preferably 0.1 to 100 cp.

[0068] In some specific embodiments, the viscosity difference between the high-viscosity fluid and the low-viscosity fluid is at least 100 cp.

[0069] Fluids with large viscosity differences are more difficult to mix rapidly at the microscopic level due to their greater surface tension and rheological property differences. Therefore, this application uses fluids with large viscosity differences as an example to verify the mixing performance of the above-mentioned microchannel fluid processing device. However, the above-mentioned microchannel fluid processing device is not limited to mixing fluids with large viscosity differences; fluids with similar or identical viscosities can achieve better mixing results.

[0070] The feed rate for different fluids can be the same or different, specifically ranging from 1 to 200 ml / min. For example, it can be 1 ml / min, 5 ml / min, 10 ml / min, 15 ml / min, 20 ml / min, 25 ml / min, 30 ml / min, 35 ml / min, 40 ml / min, 45 ml / min, 50 ml / min, 55 ml / min, 60 ml / min, 65 ml / min, 70 ml / min, 75 ml / min, 80 ml / min, 85 ml / min, 90 ml / min, 95 ml / min, 100 ml / min, 110 ml / min, 120 ml / min, 130 ml / min, 140 ml / min, 150 ml / min, 160 ml / min, 170 ml / min, 180 ml / min, 190 ml / min, 200 ml / min, or any value and range between them.

[0071] When the fluids are of different viscosities, they can enter the mixing chamber at different flow rates. The flow rate of fluids with higher viscosity (such as high-viscosity fluids) can be 1 to 50 ml / min, and the flow rate of fluids with lower viscosity (such as low-viscosity fluids) can be 1 to 200 ml / min.

[0072] During mixing, different fluids can be combined through devices such as T-type tees or Y-type tees and then enter the mixing chamber 10 through the feed channel 20. After mixing, they flow out through the discharge channel 30.

[0073] This application also provides the microchannel fluid processing device described above or the product prepared by the method described above.

[0074] In some specific implementations, the performance fluctuations of the product are small.

[0075] In some specific embodiments, the coefficient of variation (C·V value) of the product is less than 10%, for example, it can be 9.9%, 9.5%, 9.0%, 8.5%, 8.0%, 7.5%, 7.0%, 6.5%, 6.0%, 5.5%, 5.0%, 4.5%, 4.0%, 3.5%, 3.0%, 2.5%, 2.0%, 1.5%, 1.0%, 0.5%, 0.1%, or any value and range between them, preferably less than 5%.

[0076] In some specific embodiments, the dosage form of the product may be, for example, a cream, lotion, gel, etc.

[0077] As shown in the results of Examples 1-19 and Comparative Examples 1-2 below, the coefficient of variation (C·V value) of Examples 1-19 is less than 10%, preferably less than 5%. This indicates that the microchannel fluid processing device provided in this application can fully mix different fluids, especially high-viscosity fluids and low-viscosity fluids with large viscosity differences, effectively compensate for fluctuations in fluid feed, and reduce performance fluctuations of the fluid flowing out of the discharge channel 30.

[0078] Example

[0079] Table 1 shows the specifications of the microchannel fluid processing apparatus used in Examples 1-19 and Comparative Examples 1-2. In Examples 1-19 and Comparative Example 1, the mixing chamber includes parallel upper and lower main surfaces and sidewalls with a height (distance between the upper and lower main surfaces) of 8 mm. The sidewalls of Examples 1-19 form an elliptical shape; see the structural diagram below. Figures 1-3 Parameters are detailed in Table 1. The sidewalls of Comparative Example 1 form a square, with no eccentricity. Comparative Example 2 is a straight tube, with no eccentricity. The diameters of the feed and discharge channels in the microchannel fluid processing devices used in Examples 1-19 and Comparative Examples 1-2 are 5 mm. In Comparative Example 1, the ultrasonic transducer is mounted on the square sidewall and perpendicular to the line connecting the inlet and outlet. In Comparative Example 2, the ultrasonic transducer is mounted on the channel wall and perpendicular to the channel length direction.

[0080] The following experiments were conducted using the microchannel fluid processing devices described in Examples 1-19 and Comparative Examples 1-2.

[0081] A constant-flow plunger pump (model: JJRZ-10004F, manufactured by Hangzhou Jingjin Technology Co., Ltd.) was used to transport a high-viscosity fluid (10% concentration PVA (polyvinyl alcohol, model P105124-2.5kg, manufactured by Aladdin Company) aqueous solution with a viscosity of 1080 cp), with a flow rate set at 9 ml / min. A peristaltic pump (model: dPOFLEX GPH01, manufactured by Lange Constant Flow Pump Co., Ltd.) was used to transport a low-viscosity fluid (deionized water with a viscosity of 1 cp), with a peristaltic pump speed of 6 rpm (accompanied by a flow rate fluctuation of 0.1 Hz) and an average flow rate of 9 ml / min. The two fluids were connected through a T-junction and then entered the mixing chamber through the feed channel. The mixing chamber shell was made of stainless steel (for Comparative Example 2, there was only one pipeline). An ultrasonic transducer was installed on the mixing chamber as shown in the figure. The ultrasonic transducer shell was made of titanium alloy, the radiating unit was piezoelectric ceramic, the operating frequency was 20 kHz, and the power was 150 W.

[0082] After the experimental setup had been running for 5 minutes, samples were taken from the discharge channel to test the mixing effect. Samples were taken every 18 seconds, for 5 seconds each time, approximately 1.5 mL, for a total of 6 samples. Each sample was weighed to obtain the weight Mi. The samples were then dried in a 105℃ oven to remove moisture, yielding the mass Ni of PVA in each sample. Thus, the mass fraction of PVA in each sample, Ci = Ni / Mi, could be obtained. The standard deviation σ and the average value of the mass fraction Ci of PVA in the 6 samples were then used to determine the mass fraction. Calculate its coefficient of variation (C·V value):

[0083]

[0084] The C·V value reflects the fluctuation of PVA concentration in each sample; the smaller the C·V, the smaller the fluctuation.

[0085] The C·V values ​​of Examples 1-19 and Comparative Examples 1-2 are detailed in Table 1.

[0086] Table 1. Mixing chamber parameters and detection C·V values.

[0087]

[0088]

[0089] Note:

[0090] In Examples 1-19, a is the length of the major semi-axis of the ellipse; in Comparative Example 1, a is half the side length of the square.

[0091] d is the diameter of the area equivalent circle of the radiating surface of the ultrasonic transducer;

[0092] e is the eccentricity of the ellipse;

[0093] "-" indicates that the data is not available.

[0094] By examining the measured C·V values ​​of Examples 1-19 and Comparative Examples 1-2 shown in Table 1, it is evident that the microchannel fluid processing device provided in this application, compared to other microchannel fluid processing devices with different structures (such as the square structure of the mixing chamber in Comparative Example 1) or schemes that do not use a mixing chamber (Comparative Example 2), can fully mix different fluids (especially fluids with large viscosity differences, such as high-viscosity fluid and low-viscosity fluid), and can effectively compensate for fluctuations in fluid feed, resulting in smaller performance fluctuations in the fluid flowing out of the discharge channel.

Claims

1. A microchannel fluid processing device, characterized in that, include: Mixing chamber, feed channel, discharge channel, and radiator. The mixing chamber has a length direction x, a width direction y, and a height direction z. The length-to-width ratio of the mixing chamber is 2 to 30. The feed channel and the discharge channel are respectively located at both ends of the length direction of the mixing chamber. The radiation axis of the radiator is parallel to the plane formed by the length direction x and the width direction y, and points towards the mixing chamber.

2. The microchannel fluid processing device as described in claim 1, characterized in that, The maximum cross-section of the plane formed by the mixing chamber in the length direction x and the width direction y is elliptical.

3. The microchannel fluid processing device as described in claim 2, characterized in that, The eccentricity e of the ellipse is 0.30 to 0.

95.

4. The microchannel fluid processing device as described in claim 1, characterized in that, The length of the mixing chamber is 40–180 mm.

5. The microchannel fluid processing device as described in claim 1, characterized in that, The ratio of the length of the mixing chamber to the diameter of the equivalent circle of the radiating surface of the radiator is 10 to 40.

6. The microchannel fluid processing device as described in claim 1, characterized in that, The radiation axis of the radiator is located in the plane formed by the length direction x and the width direction y and points to the center of the mixing chamber. The angle between the radiation axis and the length direction of the mixing chamber is 20° to 90°.

7. The microchannel fluid processing device as described in claim 1, characterized in that, The radiator includes radiating acoustic energy into the mixing chamber.

8. The microchannel fluid processing device as described in claim 1, characterized in that, The mixing chamber has an upper main surface, a lower main surface, and side walls. The upper and lower main surfaces are parallel to the plane formed by the length direction x and the width direction y, and the upper and lower main surfaces define the height of the mixing chamber.

9. The microchannel fluid processing device as described in claim 8, characterized in that, The radiator is located on the side wall and close to the discharge channel.

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