Nanometer bubble generation mixer and mixing device

Abstract

The nanobubble generation mixer comprises an upstream outer sleeve, a downstream inner sleeve and a material supply pipe penetrating through the pipe wall of the upstream outer sleeve, an opening in the left end of the upstream outer sleeve is a first material flow inlet, the first material flow inlet is a triangular end with the pipe diameter being gradually reduced, and a second material flow inlet is formed in the right end of the upstream outer sleeve. The downstream inner sleeve is of a pipe diameter gradually-expanding type, an opening in the left end of the downstream inner sleeve is a forced mixing cavity, an opening in the right end of the downstream inner sleeve is a mixing diffusion outlet, the opening in the left end of the downstream inner sleeve is machined into an outwards-turned end, a first material enters the forced mixing cavity through the first material flow inlet, and the downstream inner sleeve is assembled and inserted into the upstream outer sleeve; a narrow pipe channel is formed after the outwards-turned end and the triangular end are assembled in place, an opening in the upper end of the material supply pipe is a second material flow inlet, an opening in the lower end of the material supply pipe is a second material flow outlet, and the second material flow outlet is communicated with the forced mixing cavity through the narrow pipe channel; and a second material enters the forced mixing chamber after forming a narrow tube effect through the narrow tube channel.

Description

Technical Field

[0001] The utility model relates to the technical field of nano bubble generation and mixing, in particular to a nano bubble generation mixer and a mixing device. Background Art

[0002] As an emerging micro-bubble utilization technology, nanobubble technology has gradually demonstrated its great potential in many fields such as environmental governance, biomedicine, chemical processes, and food processing in the past few decades. Nanobubbles refer to bubbles with a diameter of nanometers (i.e., 1nm to 2000nm). Compared with traditional bubbles, they have characteristics such as ultra-long stability time, high surface activity, and good transfer medium. Nanobubbles are widely used in enhancing dissolved oxygen, promoting material transfer, and improving microenvironment due to their unique physical and chemical properties, such as extremely high surface area to volume ratio, negatively charged surface, and the ability to exist in water for a long time without floating or aggregation. Especially in water treatment technology, improving water quality by increasing dissolved oxygen, promoting the growth of beneficial microorganisms, and effectively degrading pollutants has become an important application direction.

[0003] However, the existing nanobubble generation technology still has many shortcomings. First, during the gas-liquid mixing process, the gas is dispersed unevenly, resulting in bubbles of different sizes and a wide distribution range, which affects the stability and dissolution efficiency of the bubbles; second, the equipment for efficiently generating nanobubbles is often complex and costly, making it difficult to popularize in large-scale applications. In addition, traditional nanobubble generation methods make it difficult to accurately control the size and output of bubbles, limiting the application potential of nanobubble technology in specific fields. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a nano bubble generation mixer and a mixing device, which aims to achieve more efficient and uniform bubble generation by improving the gas-liquid mixing technology. The nano bubble generation mixer adopts the arrangement of slits or inclined narrow tubes at a specific angle, optimizes the dispersion of gas and the flow pattern of liquid. This design can effectively increase the gas-liquid contact area and enhance the mixing effect, thereby producing smaller and more uniform nano bubbles at lower energy consumption. It solves the technical problem that in the gas-liquid mixing process of the prior art, the gas is unevenly dispersed, resulting in bubbles of different sizes and a wide distribution range, which affects the stability and dissolution efficiency of the bubbles.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a nano bubble generating mixer, comprising an upstream outer sleeve, a downstream inner sleeve and a material supply pipe penetrating the wall of the upstream outer sleeve,

[0008] The left end opening of the upstream outer sleeve is a first logistics inlet, and the first logistics inlet is a triangular end with a gradually decreasing pipe diameter.

[0009] The downstream inner sleeve is of a gradually expanding pipe diameter type, the left end opening of which is a forced mixing chamber, the right end opening of which is a mixing diffusion outlet, and the left end opening of which is processed into an outward-turned end. The first material enters the forced mixing chamber through the first logistics inlet.

[0010] The downstream inner sleeve is assembled and inserted into the upstream outer sleeve, and the outward-turned end and the triangular end are provided with a narrow tube channel after being assembled in place.

[0011] The upper end opening of the material supply pipe is a second logistics inlet, and the lower end opening is a second logistics outlet. The second logistics outlet is connected to the forced mixing chamber through a narrow tube channel. The second material enters the forced mixing chamber after forming a narrow tube effect through the narrow tube channel.

[0012] Furthermore, the narrow tube channel is a narrow gap left after the outward-turned end and the triangular end are assembled in place.

[0013] Furthermore, a closed end is machined at the front end of the outward-turned end. During assembly, a narrow gap is left between the outward-turned end and the triangular end and the closed end is against the vertical side of the triangular end. The narrow tube channel is machined on the outward-turned end near one end of the second logistics outlet and is provided with an inclined narrow tube, and the inclination angle of the inclined narrow tube is 10 to 45°.

[0014] Furthermore, a vortex annular gap is provided between the second logistics outlet and the outer circumferential wall of the downstream inner sleeve.

[0015] Furthermore, the upstream outer sleeve and the downstream inner sleeve are detachably connected.

[0016] Furthermore, a first diffusion angle is formed between a section of the inner circumferential surface of the downstream inner sleeve located in the forced mixing chamber and the horizontal direction, and a second diffusion angle is formed between the outlet of the mixing diffusion outlet and the horizontal direction.

[0017] Furthermore, the first diffusion angle is 0-6°, and the second diffusion angle is 0-10°.

[0018] The utility model also provides a nano bubble generating and mixing device, comprising the following components:

[0019] A front storage chamber, comprising a first storage chamber and a second storage chamber, for storing liquid and gas, or two immiscible fluids;

[0020] The forced mixing mechanism comprises a nano bubble generating mixer, wherein the first storage chamber and the second storage chamber are respectively connected to two material inlets of the forced mixing mechanism through pipelines;

[0021] A total outlet, the total outlet is connected to the mixed material outlet of the forced mixing mechanism and is used to discharge the mixed fluid;

[0022] The power source is connected to the front storage chamber and the forced mixing mechanism respectively, and provides power to force the fluid to pass through the device.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the utility model provides a nano bubble generation mixer and method, which has the following beneficial effects:

[0025] 1. The nanobubble generation mixer adopts the arrangement of narrow slits or inclined narrow tubes at a specific angle to optimize the dispersion of gas and the flow pattern of liquid. This design can effectively increase the gas-liquid contact area and enhance the mixing effect, thereby producing smaller and more uniform nanobubbles at lower energy consumption.

[0026] 2. The nanobubbles generated by the nanobubble generation mixer and the mixing device have better stability and uniformity, and can improve the dissolution efficiency. In addition, the device simplifies the nanobubble generation process, reduces equipment cost and operation difficulty, and is expected to be widely used in environmental governance, bioengineering, medical health and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a nano bubble generating mixer embodiment 1 of the utility model;

[0028] Figure 2 This is a schematic structural diagram of a nano bubble generating mixer embodiment 2 of the utility model;

[0029] Figure 3 This is a schematic diagram of the composition of a nano bubble generating and mixing device of the utility model;

[0030] Figure 4 The test results of Example 1 of the present utility model are a curve showing that the average particle size is about 40 nanometers;

[0031] Figure 5 The test results of Example 2 of the present utility model are a curve showing that the average particle size is about 22 nanometers;

[0032] In the figure: 1. upstream outer sleeve; 101. first logistics inlet; 102. triangular end; 2. downstream inner sleeve; 201. forced mixing chamber; 202. mixing diffusion outlet; 203. outward-turned end; 204. closed end; 205. first diffusion angle; 206. second diffusion angle; 3. material supply pipe; 301. second logistics inlet; 302. second logistics outlet; 4. narrow tube channel; 401. slit; 402. inclined narrow tube; 403. inclined angle; 5. vortex annulus; 6. first storage chamber; 7. second storage chamber; 8. forced mixing mechanism; 9. total outlet; 10. power source. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Embodiment 1:

[0035] See also Figure 1 The present embodiment adopts a nano bubble generating mixer, comprising an upstream outer sleeve 1, a downstream inner sleeve 2 and a material supply pipe 3 penetrating the tube wall of the upstream outer sleeve 1, the left end opening of the upstream outer sleeve 1 is a first logistics inlet 101, and the first logistics inlet 101 is a triangular terminal 102 with a gradually shrinking tube diameter, the downstream inner sleeve 2 is a gradually expanding tube diameter, the left end opening of which is a forced mixing chamber 201, the right end opening of which is a mixing diffusion outlet 202, and the left end opening is processed into an outward-turned terminal 203, the first material is passed through The first logistics inlet 101 enters the forced mixing chamber 201, the downstream inner sleeve 2 is assembled and inserted into the upstream outer sleeve 1, and the outward-turned end 203 and the triangular end 102 are provided with a narrow tube channel 4 after being assembled in place. The upper end opening of the material supply pipe 3 is the second logistics inlet 301, and the lower end opening is the second logistics outlet 302. The second logistics outlet 302 is connected to the forced mixing chamber 201 through the narrow tube channel 4, and the second material enters the forced mixing chamber 201 after forming a narrow tube effect through the narrow tube channel 4. A first diffusion angle 205 is formed between a section of the inner circumferential surface of the downstream inner sleeve 2 located in the forced mixing chamber 201 and the horizontal direction, and a second diffusion angle 206 is formed between the outlet of the mixed diffusion outlet 202 and the horizontal direction. The first diffusion angle 205 is 0-6°, and the second diffusion angle 206 is 0-10°.

[0036] In the above embodiments, the narrow tube channel 4 is a slit 401 left after the outward-turned end 203 and the triangular end 102 are assembled in place, a vortex annular gap 5 is provided between the second logistics outlet 302 and the outer circumferential wall of the downstream inner sleeve 2, and the upstream outer sleeve 1 and the downstream inner sleeve 2 are detachably connected.

[0037] This embodiment uses ZetaView nanoparticle tracking analyzer NTA test, such as Figure 4 As shown, the test results show that the average particle size is about 40 nanometers. Figure 4 The horizontal axis represents the diameter of the nanobubbles (in nm), and the vertical axis represents the number of nanobubbles per milliliter.

[0038] Embodiment 2:

[0039] See also Figure 2 Embodiment 2 is another structure of Embodiment 1, the difference being that a closed end 204 is machined at the front end of the outward-turned end 203. During assembly, a slit 401 is left between the outward-turned end 203 and the triangular end 102, and the closed end 204 rests against the vertical side of the triangular end 102. The narrow tube channel 4 is machined on the outward-turned end 203 near the second logistics outlet 302 and is provided with an inclined narrow tube 402, and the inclination angle 403 of the inclined narrow tube 402 is 10 to 45°.

[0040] This embodiment uses ZetaView nanoparticle tracking analyzer NTA test, such as Figure 5 As shown, the test results show that the average particle size is about 22 nanometers. Figure 5 The horizontal axis represents the diameter of the nanobubbles (in nm), and the vertical axis represents the number of nanobubbles per milliliter.

[0041] The working principle of the nanobubble generating mixer includes the following steps:

[0042] S1, the first material is introduced into the upstream outer sleeve 1 through the first logistics inlet 101, and the first material flows into the forced mixing chamber 201 along the triangular end 102 with a gradually decreasing diameter. The flow rate is gradually accelerated due to the gradually decreasing diameter, and the flow rate of the first material reaches the maximum value at the outlet of the narrow tube channel 4;

[0043] S2, the second material is introduced into the material supply pipe 3 through the second logistics inlet 301, and the second material passes through the vortex annulus 5 and then through the narrow tube channel 4 and the second logistics outlet 302 to flow into the forced mixing chamber 201. Since the gap from the vortex annulus 5 to the narrow tube channel 4 gradually shrinks, the flow velocity gradually accelerates, and the flow velocity of the second material reaches the maximum value at the outlet of the narrow tube channel 4;

[0044] S3, the first material and the second material both enter the forced mixing chamber 201 at high speed, the first material and the second material are mixed under high-speed movement, and nano bubbles are generated at the outlet of the narrow tube channel 4;

[0045] S4, the mixed material is discharged through the mixed diffusion outlet 202. Since the downstream inner sleeve 2 is of a gradually expanding pipe diameter, the flow rate of the mixed material is gradually slowed down and then discharged smoothly.

[0046] In the above working principle, the first material is liquid, and the second material can be gas or another fluid that is incompatible with the first material.

[0047] Embodiment 3:

[0048] See also Figure 3 , this embodiment adopts a nano bubble generating and mixing device, including the following components:

[0049] (a) a front storage chamber, which includes a first storage chamber 6 and a second storage chamber 7, and is used to store liquid and gas, or two immiscible fluids;

[0050] (b) a forced mixing mechanism 8, comprising the nano bubble generating mixer of Example 1 or Example 2, wherein the first storage chamber 6 and the second storage chamber 7 are respectively connected to two material inlets of the forced mixing mechanism 8 through pipelines;

[0051] (c) a main outlet 9, which is connected to the mixed material outlet of the forced mixing mechanism 8 and is used to discharge the mixed fluid;

[0052] (d) A power source 10, connected to the front storage chamber and the forced mixing mechanism, respectively, to provide power to force the fluid to pass through the device.

[0053] In summary,

[0054] The nanobubbles generated by the nanobubble generation mixer and the mixing device have better stability and uniformity, and can improve the dissolution efficiency. In addition, the device simplifies the nanobubble generation process, reduces equipment costs and operating difficulties, and is expected to be widely used in environmental governance, bioengineering, medical health and other fields. This is an innovative solution that not only overcomes the limitations of existing technologies, but also shows broad application potential. By optimizing the gas-liquid mixing technology, efficient, low-cost, and easy-to-operate nanobubble generation is achieved, providing new impetus for technological progress and industrial development in related fields.

[0055] It should be noted that if in this article, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, it does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nano bubble generating mixer, characterized in that: It comprises an upstream outer sleeve (1), a downstream inner sleeve (2) and a material supply pipe (3) penetrating the pipe wall of the upstream outer sleeve (1). The left end opening of the upstream outer sleeve (1) is a first logistics inlet (101), and the first logistics inlet (101) is a triangular end cap (102) with a gradually decreasing pipe diameter. The downstream inner sleeve (2) is of a gradually expanding pipe diameter type, the left end opening of which is a forced mixing chamber (201), the right end opening of which is a mixing diffusion outlet (202), and the left end opening of which is processed into an outward-turned end (203). The first material enters the forced mixing chamber (201) through the first logistics inlet (101). The downstream inner sleeve (2) is assembled and inserted into the upstream outer sleeve (1), and the outward-turned end head (203) and the triangular end head (102) are provided with a narrow tube channel (4) after being assembled in place. The upper end opening of the material supply pipe (3) is a second logistics inlet (301), and the lower end opening is a second logistics outlet (302). The second logistics outlet (302) is connected to the forced mixing chamber (201) through a narrow tube channel (4). The second material enters the forced mixing chamber (201) after forming a narrow tube effect through the narrow tube channel (4).

2. A nano bubble generating mixer according to claim 1, characterized in that: The narrow tube channel (4) is a narrow slit (401) left after the outward-turned end (203) and the triangular end (102) are assembled in place.

3. The nano bubble generating mixer according to claim 1, characterized in that: The front end of the outward-turned end (203) is processed and provided with a closed end (204). During assembly, a slit (401) is left between the outward-turned end (203) and the triangular end (102), and the closed end (204) is against the vertical side of the triangular end (102). The narrow tube channel (4) is processed and provided with an inclined narrow tube (402) on the outward-turned end (203) at one end close to the second logistics outlet (302), and the inclination angle (403) of the inclined narrow tube (402) is 10 to 45 degrees.

4. The nano bubble generating mixer according to claim 1, characterized in that: A vortex annular gap (5) is provided between the second logistics outlet (302) and the outer circumferential wall of the downstream inner sleeve (2).

5. The nano bubble generating mixer according to claim 1, characterized in that: The upstream outer sleeve (1) and the downstream inner sleeve (2) are detachably connected.

6. The nano bubble generating mixer according to claim 1, characterized in that: A first diffusion angle (205) is formed between a section of the inner circumferential surface of the downstream inner sleeve (2) located in the forced mixing chamber (201) and the horizontal direction, and a second diffusion angle (206) is formed between the outlet of the mixing diffusion outlet (202) and the horizontal direction.

7. A nano bubble generating mixer according to claim 6, characterized in that: The first diffusion angle (205) is 0 to 6°, and the second diffusion angle (206) is 0 to 10°.

8. A nano bubble generating and mixing device, characterized in that: Includes the following components: A front storage chamber, the front storage chamber comprising a first storage chamber (6) and a second storage chamber (7), for storing liquid and gas, or two immiscible fluids; A forced mixing mechanism (8), comprising the nano bubble generating mixer according to any one of claims 1 to 7, wherein the first storage chamber (6) and the second storage chamber (7) are respectively connected to two material inlets of the forced mixing mechanism (8) through pipelines; A total outlet (9), the total outlet (9) being connected to the mixed material outlet of the forced mixing mechanism (8) and used for discharging the mixed fluid; The power source (10) is connected to the front storage chamber and the forced mixing mechanism respectively, and provides power to force the fluid to pass through the device.

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