Micro-nano bubble vertical transportation observation system

Abstract

The invention discloses a micro-nano bubble vertical transportation observation system which comprises a vertical transportation former and a bubble supply module, the vertical transportation former is provided with a spacer, a liquid inlet and a liquid outlet, the interior of the vertical transportation former is divided into an upper layer structure and a lower layer structure by the spacer, a water body flowing cavity is formed in the lower layer, and a water body flowing cavity is formed in the lower layer; the bubble supply module can supply flowing water containing micro-nano bubbles into the water flowing cavity through the liquid inlet, the water in the water flowing cavity can flow out through the liquid outlet, and in the flowing process of the water in the water flowing cavity, the micro-nano bubbles in the water flowing cavity can flow out through the liquid outlet. The micro-nano bubbles of the water body enter the vertical transportation forming cavity on the upper layer, and the vertical transportation forming cavity and the water body flowing cavity are separated through the spacer, so that turbulent flow formed by the vertical transportation forming cavity can be avoided, observation imaging of vertical transportation in the vertical transportation forming cavity is facilitated, and the imaging precision of vertical transportation is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of micro-nano bubble observation experiments, and in particular to a micro-nano bubble vertical transport observation system. Background Art

[0002] Vertical migration is the movement and transfer of objects in the vertical direction. The diameter of micron bubbles is between 1 and 60 μm, while the diameter of nano bubbles is below 300 nm. Bubbles with diameters between the two are usually called micro-nano bubbles. Micro-nano bubbles can form vertical migration of micro-nano bubbles in water. The vertical migration of micro-nano bubbles mainly includes the vertical migration of micro-nano bubbles themselves and the vertical migration of particles in water driven by micro-nano bubbles. The vertical migration test equipment can conduct observation tests on the vertical migration of micro-nano bubbles.

[0003] The vertical transport test equipment mainly includes a micro-nano bubble forming device, a vertical transport forming device and a PIV observation module. The micro-nano bubble forming device is connected to the vertical transport forming device, and can continuously form micro-nano bubbles, and continuously pass the micro-nano bubbles into the vertical transport forming device through water flow, so that the vertical transport forming device forms the vertical transport of micro-nano bubbles itself, or promotes the particulate matter in the vertical transport forming device to form vertical transport. The PIV observation module realizes the observation test of the vertical transport of micro-nano bubbles by observing and imaging the vertical transport of the micro-nano bubbles themselves or the vertical transport of the particulate matter in the vertical transport forming device.

[0004] When micro-nano bubbles are introduced into the vertical transport forming device, the flow of water will cause a turbulent flow to form inside the vertical transport forming device. This turbulent flow can easily interfere with the observation of the vertical transport of micro-nano bubbles, thereby affecting the imaging accuracy of the vertical transport of micro-nano bubbles, resulting in low imaging accuracy of the vertical transport of micro-nano bubbles. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a micro-nano bubble vertical transport observation system to solve the technical problem that the imaging accuracy of micro-nano bubble vertical transport in the vertical transport test equipment in the prior art is low due to the turbulence of the water body.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a micro-nano bubble vertical transport observation system, comprising: A vertical transfer former is provided with a liquid inlet and a liquid outlet; a spacer, which is arranged inside the vertical transport forming device and divides the inside of the vertical transport forming device into a water flow chamber located at a lower layer and a vertical transport forming chamber located at an upper layer, wherein the water flow chamber is connected to the vertical transport forming chamber, and the liquid inlet and the liquid outlet are both connected to the water flow chamber; and The bubble supply module is connected to the liquid inlet and is used to supply flowing water containing micro-nano bubbles to the water flow cavity through the liquid inlet.

[0007] In some embodiments, the bubble supply module includes a bubble forming pool, a circulation pipeline, a driving member and a bubble generating unit, wherein the bubble generating unit is connected to the bubble forming pool and is used to form micro-nano bubbles in the bubble forming pool, the circulation pipeline is connected to the bubble forming pool, the liquid inlet and the liquid outlet, and the driving member is installed in the circulation pipeline and is used to drive the water containing micro-nano bubbles to circulate along the water flow cavity and the bubble forming pool.

[0008] In some embodiments, the vertical transfer former is provided with a first opening connected to the vertical transfer forming chamber; the bubble forming pool is provided with a second opening connected to the interior, and the liquid level in the bubble forming pool is higher than the bottom inner wall of the vertical transfer forming chamber.

[0009] In some embodiments, the bubble generating unit comprises a stirring device and a gas supply device, wherein the gas supply device is used to introduce gas into the bubble forming pool, and the stirring device is used to stir the water in the bubble forming pool.

[0010] In some embodiments, a first reducing flange is provided at one end of the circulation pipeline connected to the liquid inlet, the port diameter of the first reducing flange is the same as the diameter of the liquid inlet, and the inner diameter gradually increases in the direction approaching the liquid inlet.

[0011] In some embodiments, a second reducing flange is provided at one end of the circulation pipeline connected to the liquid outlet, the port diameter of the second reducing flange is the same as the diameter of the liquid outlet, and the inner diameter gradually increases in the direction approaching the liquid outlet.

[0012] In some embodiments, the vertical transfer forming device includes a lower square flow channel and an upper forming groove, the upper forming groove is connected to the lower square flow channel, the water flow chamber and the vertical transfer forming chamber are respectively arranged in the lower square flow channel and the upper forming groove, and the two ends of the lower square flow channel respectively form the liquid inlet and the liquid outlet.

[0013] In some embodiments, the vertical transfer former further comprises an inlet rectifying plate, wherein the inlet rectifying plate is installed at the liquid inlet, and the inlet rectifying plate is provided with a plurality of evenly arranged inlet rectifying holes.

[0014] In some embodiments, the spacer is provided with a plurality of evenly spaced connecting holes, and the water flow cavity is connected with the vertical transfer forming cavity through each of the connecting holes.

[0015] In some embodiments, the communicating hole includes a cylindrical hole and a tapered hole located at a lower side of the cylindrical hole.

[0016] Compared with the prior art, the micro-nano bubble vertical transport observation system provided by the present invention is provided with a vertical transport former, a spacer and a bubble supply module, the vertical transport former is provided with a liquid inlet and a liquid outlet, the spacer is arranged inside the vertical transport former, and the interior of the vertical transport former is divided into an upper and lower two-layer structure, the lower layer forms a water flow cavity, and the upper layer forms a vertical transport formation cavity, the liquid inlet and the liquid outlet are both connected to the water flow cavity, and the bubble supply module is connected to the liquid inlet, and a liquid containing micro-nano bubbles can be supplied to the water flow cavity through the liquid inlet. The moving water body, the water body in the water flow cavity can flow out through the liquid outlet. During the flow of the water body in the water flow cavity, the micro-nano bubbles of the water body move upward and enter the vertical transport forming cavity of the upper layer. Since the vertical transport forming cavity of the upper layer and the water body flow cavity of the lower layer are separated by the spacer, the flow of the water body in the water flow cavity can be avoided from interfering with the water body in the vertical transport forming cavity, and the formation of turbulence in the vertical transport forming cavity can be effectively avoided, thereby facilitating the observation and imaging of the vertical transport in the vertical transport forming cavity, and effectively improving the imaging accuracy of the vertical transport of micro-nano bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a micro-nano bubble vertical transport observation system provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of a vertical transfer former provided in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a vertical transfer former provided by an embodiment of the present invention from another angle; Figure 4 is a cross-sectional view of a spacer provided in an embodiment of the present invention.

[0018] Reference numerals in the figures: 10—vertical transfer forming device 11—liquid inlet 12—liquid outlet 13—Water flow cavity 14—Vertical transport formation cavity 15—Lower square flow channel 16 - upper layer forming groove 20 - spacer 21 - communication hole 30—bubble supply module 31—bubble formation pool 32—circulation pipeline 33—circulation pump 34—bubble generating unit 35—flow meter 341 — stirring device 211 — cylindrical hole 211 — conical hole.

[0019] 321 - first reducing flange 322 - second reducing flange DETAILED DESCRIPTION In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In order to solve the technical problem in the prior art that the imaging accuracy of the vertical transport of micro-nano bubbles is low due to the turbulence of water bodies in the vertical transport test equipment, an embodiment of the present invention provides a micro-nano bubble vertical transport observation system, which layered the supply of micro-nano bubbles and the formation of the vertical transport of micro-nano bubbles, thereby avoiding the interference of the supply of micro-nano bubbles on the observation of vertical transport, thereby improving the observation accuracy of vertical transport.

[0021] The micro-nano bubble vertical transport observation system provided by the embodiment of the present invention is as follows: Figure 1-3 As shown, it includes a vertical transfer former 10, a spacer 20 and a bubble supply module 30. The vertical transfer former 10 is provided with a liquid inlet 11 and a liquid outlet 12. The spacer 20 is arranged inside the vertical transfer former 10, and divides the interior of the vertical transfer former 10 into a water flow chamber 13 located at the lower layer and a vertical transfer forming chamber 14 located at the upper layer. The water flow chamber 13 is connected to the vertical transfer forming chamber 14, and the liquid inlet 11 and the liquid outlet 12 are both connected to the water flow chamber 13; the bubble supply module 30 is connected to the liquid inlet 11, and is used for supplying flowing water containing micro-nano bubbles to the water flow chamber 13 through the liquid inlet 11.

[0022] Specifically, the micro-nano bubble vertical transport observation system is provided with a vertical transport former 10, a spacer 20 and a bubble supply module 30. The vertical transport former 10 is provided with a liquid inlet 11 and a liquid outlet 12. The spacer 20 is arranged inside the vertical transport former 10 to separate the interior of the vertical transport former 10 into an upper and lower two-layer structure. The lower layer forms a water flow cavity 13, and the upper layer forms a vertical transport formation cavity 14. The liquid inlet 11 and the liquid outlet 12 are both connected to the water flow cavity 13. The bubble supply module 30 is connected to the liquid inlet 11, and micro-nano bubbles can be supplied to the water flow cavity 13 through the liquid inlet 11. The water in the water flow cavity 13 can flow out through the liquid outlet 12. During the flow of the water in the water flow cavity 13, the micro-nano bubbles of the water move upward and enter the upper vertical transport forming cavity 14. Since the upper vertical transport forming cavity 14 and the lower water flow cavity 13 are separated by the spacer 20, the flow of the water in the water flow cavity 13 can be avoided from interfering with the water in the vertical transport forming cavity 14, and the formation of turbulence in the vertical transport forming cavity 14 can be effectively avoided, thereby facilitating the observation and imaging of the vertical transport in the vertical transport forming cavity 14, and effectively improving the imaging accuracy of the vertical transport of micro-nano bubbles.

[0023] In this embodiment, the vertical transport of micro-nano bubbles includes the vertical transport of the micro-nano bubbles themselves and the vertical transport of particles in the water driven by the micro-nano bubbles.

[0024] In this embodiment, by arranging the liquid inlet 11 and the liquid outlet 12 in the water flow chamber 13 of the lower layer, the water inside the vertical transfer forming device 10 only flows in the water flow chamber 13 of the lower layer, and the upper vertical transfer forming chamber 14 is separated from the water flow chamber 13 of the lower layer by the spacer 20, so the water flow in the lower water flow chamber 13 will hardly affect the water in the upper vertical transfer forming chamber 14.

[0025] In this embodiment, the micro-nano bubbles in the water flow cavity 13 of the lower layer can move upward through the connecting portion between the vertical transport forming cavity 14 of the upper layer and the water flow cavity 13 of the lower layer and enter the vertical transport forming cavity 14 of the upper layer. The micro-nano bubbles can further form vertical transport by themselves through their upward movement. Since the water body of the vertical transport forming cavity 14 of the upper layer is relatively stable, it is convenient to conduct a visual imaging experiment of the vertical transport of the micro-nano bubbles themselves. At the same time, particulate matter can be added to the water body of the vertical transport forming cavity 14. The micro-nano bubbles entering the vertical transport forming cavity 14 can form vertical transport of the particulate matter by driving the particulate matter to move upward. Since the water body of the vertical transport forming cavity 14 of the upper layer is relatively stable, it is convenient to conduct a visual imaging experiment of the influence of micro-nano bubbles on the vertical transport of particulate matter through PIV. It also improves the visual imaging accuracy, and ultimately improves the experimental measurement accuracy.

[0026] It can be understood that the vertical transfer former 10 can be a container of any structural form that can accommodate water, and the spacer 20 can be arranged inside the vertical transfer former 10 to form a connecting port with the inner wall of the vertical transfer former 10, so that the upper vertical transfer forming chamber 14 and the lower water flow chamber 13 are connected, or by setting a connecting groove running through the spacer 20, the upper vertical transfer forming chamber 14 and the lower water flow chamber 13 can be connected.

[0027] In one embodiment, if Figure 1-3 As shown, the vertical transfer forming device 10 includes a lower square flow channel 15 and an upper forming groove 16, the upper forming groove 16 is connected to the upper side of the lower square flow channel 15, the water flow chamber 13 and the vertical transfer forming chamber 14 are respectively formed in the lower square flow channel 15 and the upper forming groove 16, and the two end ports of the lower square flow channel 15 respectively form a liquid inlet 11 and a liquid outlet 12. Specifically, by setting the vertical transfer former 10 as two parts, namely, a lower square flow channel 15 and an upper forming groove 16, the upper and lower parts of the vertical transfer former 10 can be further separated. The lower square flow channel 15 can be used exclusively for water flow, and the upper forming groove is used exclusively to accommodate the water that forms the vertical transfer. The upper forming groove 16 is formed in the lower square flow channel 15, so that the length of the upper forming groove 16 is smaller than the length of the lower square flow channel 15. Therefore, when the water enters and passes through the lower square flow channel 15, it will preferentially flow along the lower square flow channel 15 under the guidance of the lower square flow channel 15, and will not diffuse to the upper forming groove 16, thereby maintaining the stability of the water in the upper forming groove 16. Moreover, by setting the lower square flow channel 15 as a square structure, the disturbance of the water in the lower square flow channel 15 during the flow process can be reduced, thereby reducing the disturbance of the water in the upper forming groove 16.

[0028] In one embodiment, if Figure 1-3 As shown, the spacer 20 is provided with a plurality of evenly spaced connecting holes 21, and the water body flow cavity 13 is connected with the vertical transport forming cavity 14 through each connecting hole 21. Specifically, by providing evenly spaced connecting holes 21 on the spacer 20, while realizing the spacing between the upper vertical transport forming cavity 14 and the lower water body flow cavity 13, the micro-nano bubbles in the water body flow cavity 13 can be arranged evenly in the horizontal direction, ensuring the uniformity of the micro-nano bubbles in the vertical transport forming cavity 14, so as to facilitate the formation of vertical transport.

[0029] In this embodiment, the upper vertical transport forming cavity 14 without the spacer 20 containing the connecting hole 21 will form an obvious circulating vortex under the interference of the water in the water flow cavity 13 of the lower layer. The water in the water flow cavity 13 with the spacer 20 containing the connecting hole 21 is in a calm state, and its flow rate is less than 3mm / s. The upper vertical transport forming cavity 14 is almost not affected by the water flow in the water flow cavity 13 of the lower layer. This state can better perform visual imaging of vertical transport.

[0030] In this embodiment, Figure 4 As shown, the connecting hole 21 includes a cylindrical hole 211 and a tapered hole 211 located at the lower side of the cylindrical hole. Specifically, the tapered hole 211 can facilitate the micro-nano bubbles to enter the connecting hole 21, and the micro-nano bubbles entering the tapered hole 211 will further enter the cylindrical hole 211. When the micro-nano bubbles pass through the cylindrical hole 211, they will tend to be vertical under the guidance of the cylindrical hole 211, and then enter the vertical transport forming cavity 14 in a vertical state to facilitate the formation of vertical transport.

[0031] In this embodiment, Figure 2-3 As shown, the spacer 20 is disposed between the lower layer square flow channel 15 and the upper layer forming groove 16 .

[0032] It is understandable that the micro-nano bubbles can be formed by spraying air into the water through a micro-aperture nozzle through a venturi tube connected to the water supply port, a micro-nano bubble generator, or by using advanced ultrasonic technology. After the micro-nano bubbles are formed, the water containing the micro-nano bubbles is passed into the water flow chamber 13 through the pump body.

[0033] In one embodiment, the vertical transport forming device 10 further includes an inlet rectifying plate (not shown in the figure), which is installed at the liquid inlet 11 and is provided with a plurality of evenly arranged inlet rectifying holes. Specifically, the rectifying plate can rectify the water flowing into the water flow cavity 13 through the rectifying holes to avoid the formation of turbulence in the water flow cavity 13, and keep the arrangement of the micro-nano bubbles in the height direction uniform, and cooperate with the spacer 20 to ensure the uniformity of the micro-nano bubbles in the vertical transport forming cavity 14.

[0034] In one embodiment, if Figure 1As shown, the bubble supply module 30 includes a bubble forming pool 31, a circulation pipeline 32, a circulation pump 33 and a bubble generating unit 34. The bubble generating unit 34 is connected to the bubble forming pool 31 and is used to form micro-nano bubbles in the bubble forming pool 31. The circulation pipeline 32 is connected to the bubble forming pool 31, the liquid inlet 11 and the liquid outlet 12. The circulation pump 33 is installed in the circulation pipeline 32 and is used to drive the water containing micro-nano bubbles to circulate along the water flow cavity 13 and the bubble forming pool 31. Specifically, the bubble generating unit 34 forms micro-nano bubbles in the bubble forming pool 31, and the circulating pump 33 drives the water to circulate in the water flow cavity 13 and the bubble forming pool 31 through the circulating pipeline 32. During the circulation process, the water brings the micro-nano bubbles formed in the bubble forming pool 31 to the water flow cavity 13, and some bubbles will float up and enter the vertical transport forming cavity 14 to form vertical transport, while other bubbles will re-enter the bubble forming pool 31 under the circulation of the circulating pipeline 32, and finally form a continuously flowing water body in the water flow cavity 13, and realize the recycling of some micro-nano bubbles, thereby reducing the manufacturing cost of micro-nano bubbles.

[0035] In this embodiment, Figure 1 As shown, the bubble supply module 30 further includes a flow meter 35 , which controls the water flow rate, thereby controlling the amount of micro-nano bubbles entering the water flow chamber 13 .

[0036] In one embodiment, the vertical transfer forming device 10 is provided with a first opening connected to the vertical transfer forming chamber 14; the bubble forming pool 31 is provided with a second opening connected to the inside, so that the bubble forming pool 31 and the vertical transfer forming device 10 form a communicating vessel, and the liquid level in the bubble forming pool 31 is higher than the bottom inner wall of the vertical transfer forming chamber 14. Specifically, the bubble forming pool 31 and the vertical transfer forming device 10 are connected to the atmosphere and connected through the circulation pipeline 32, so that the bubble forming pool 31 and the vertical transfer forming device 10 form a communicating vessel, and thus the water level of the bubble forming pool 31 can be flush with the water level of the vertical transfer forming device 10, and then, by controlling the water level of the bubble forming pool 31, the water level of the vertical transfer forming device 10 can be controlled.

[0037] In this embodiment, the topography of the pool mouth of the bubble forming pool 31 is higher than the bottom topography of the vertical transfer forming chamber 14. By making the topography of the pool mouth of the bubble forming pool 31 higher than the bottom topography of the vertical transfer forming chamber 14, after the water surface of the bubble forming pool 31 reaches a certain height, the vertical transfer forming chamber 14 of the vertical transfer forming device 10 will form a stable water body. Therefore, through the above structure, the bubble supply module 30 can form micro-nano bubbles flowing at the bottom of the vertical transfer forming device 10, and can also promote the formation of a stable water body at the top of the vertical transfer forming device 10.

[0038] It can be understood that the bubble forming pool 31 can be set on a step so that the pool mouth of the bubble forming pool 31 is higher than the bottom terrain of the vertical transfer forming chamber 14, or the height of the bubble forming pool 31 can be set greater than or equal to the height of the vertical transfer former 10, so that the pool mouth of the bubble forming pool 31 is higher than the bottom terrain of the vertical transfer forming chamber 14, so that the bubble forming pool 31 can form a stable water body in the vertical transfer forming chamber 14 after being filled with a certain amount of water.

[0039] It can be understood that the bubble forming pool 31 can form micro-nano bubbles by setting any micro-nano bubble generating device that can form micro-nano bubbles in the water body in the bubble forming pool 31 .

[0040] In one embodiment, if Figure 1 As shown, the bubble generating unit 34 includes a stirring device 341 and a gas supply device (not shown in the figure), the stirring device 341 is used to stir the water in the bubble forming pool 31, and the gas supply device is used to introduce gas into the bubble forming pool 31. Specifically, the gas supply device can form micro-nano bubbles in the bubble forming pool 31 by pumping air into the bubble forming pool 31, and the stirring device 341 stirs the water in the bubble forming pool 31 to fully mix the micro-nano bubbles with the water, thereby forming a water body containing uniform micro-nano bubbles, thereby improving the uniformity of vertical transport.

[0041] In this embodiment, the air supply device is an oxygen pump.

[0042] In this embodiment, Figure 1 As shown, the stirring device 341 includes a motor and a stirring frame. The motor drives the stirring frame to rotate to stir the water in the bubble forming pool 31.

[0043] In one embodiment, if Figure 1-3 As shown, a first reducing flange 321 is provided at one end of the circulation pipeline 32 connected to the liquid inlet 11, and the port diameter of the first reducing flange 321 is the same as the diameter of the liquid inlet 11, and the inner diameter gradually increases in the direction close to the liquid inlet 11. Specifically, by providing the first reducing flange 321, while realizing the connection between the circulation pipeline 32 and the liquid inlet 11, the water body can enter the water body flow cavity 13 in a horizontal direction under the guidance of the first reducing flange 321, thereby reducing the flow of the water body to the vertical transport forming cavity 14 and maintaining the stability of the water body in the vertical transport forming cavity 14.

[0044] In this embodiment, the flared end of the first reducing flange 321 is fixed to the end of the lower square flow channel 15 , and the cross section of the flared end of the first reducing flange 321 is the same as the port cross section of the lower square flow channel 15 .

[0045] In one embodiment, if Figure 1-3As shown, a second reducing flange 322 is provided at one end of the circulation pipeline 32 connected to the liquid outlet 12, and the port diameter of the second reducing flange 322 is the same as the diameter of the liquid outlet 12, and the inner diameter gradually increases in the direction close to the liquid outlet 12. Specifically, the second reducing flange 322 can naturally transition the water in the water flow cavity 13 to the circulation pipeline 32, thereby avoiding the formation of turbulence in the water flow cavity 13.

[0046] In this embodiment, the flared end of the second reducing flange 322 is fixed to the end of the lower square flow channel 15 , and the cross section of the flared end of the second reducing flange 322 is the same as the port cross section of the lower square flow channel 15 .

[0047] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A micro-nano bubble vertical transport observation system, characterized in that: include: A vertical transfer former is provided with a liquid inlet and a liquid outlet; a spacer, which is arranged inside the vertical transport forming device and divides the inside of the vertical transport forming device into a water flow chamber located at a lower layer and a vertical transport forming chamber located at an upper layer, wherein the water flow chamber is connected to the vertical transport forming chamber, and the liquid inlet and the liquid outlet are both connected to the water flow chamber; and The bubble supply module is connected to the liquid inlet and is used to supply flowing water containing micro-nano bubbles to the water flow cavity through the liquid inlet.

2. The micro-nano bubble vertical transport observation system according to claim 1, characterized in that: The bubble supply module includes a bubble forming pool, a circulation pipeline, a driving member and a bubble generating unit. The bubble generating unit is connected to the bubble forming pool and is used to form micro-nano bubbles in the bubble forming pool. The circulation pipeline is connected to the bubble forming pool, the liquid inlet and the liquid outlet. The driving member is installed in the circulation pipeline and is used to drive the water containing micro-nano bubbles to circulate along the water flow cavity and the bubble forming pool.

3. The micro-nano bubble vertical transport observation system according to claim 2, characterized in that: The vertical transfer forming device is provided with a first opening connected to the vertical transfer forming chamber; the bubble forming pool is provided with a second opening connected to the interior, and the liquid level in the bubble forming pool is higher than the bottom inner wall of the vertical transfer forming chamber.

4. The micro-nano bubble vertical transport observation system according to claim 2, characterized in that: The bubble generating unit comprises a stirring device and a gas supply device, wherein the gas supply device is used to introduce gas into the bubble forming pool, and the stirring device is used to stir the water in the bubble forming pool.

5. The micro-nano bubble vertical transport observation system according to claim 2, characterized in that: A first reducing flange is provided at one end of the circulation pipeline connected to the liquid inlet. The port diameter of the first reducing flange is the same as the diameter of the liquid inlet, and the inner diameter gradually increases in the direction approaching the liquid inlet.

6. The micro-nano bubble vertical transport observation system according to claim 2, characterized in that: A second reducing flange is provided at one end of the circulation pipeline connected to the liquid outlet. The port diameter of the second reducing flange is the same as the diameter of the liquid outlet, and the inner diameter gradually increases in the direction approaching the liquid outlet.

7. The micro-nano bubble vertical transport observation system according to any one of claims 1 to 6, characterized in that: The vertical transfer forming device includes a lower square flow channel and an upper forming groove, the upper forming groove is connected to the lower square flow channel, the water flow chamber and the vertical transfer forming chamber are respectively formed in the lower square flow channel and the upper forming groove, and the two ends of the lower square flow channel respectively form the liquid inlet and the liquid outlet.

8. The micro-nano bubble vertical transport observation system according to any one of claims 1 to 6, characterized in that: The vertical transfer former also includes an inlet rectifying plate, which is installed at the liquid inlet and is provided with a plurality of evenly arranged inlet rectifying holes.

9. The micro-nano bubble vertical transport observation system according to any one of claims 1 to 6, characterized in that: The spacer is provided with a plurality of evenly spaced communicating holes, and the water flow cavity is connected with the vertical transfer forming cavity through each of the communicating holes.

10. The micro-nano bubble vertical transport observation system according to claim 9, characterized in that: The communicating hole includes a cylindrical hole and a tapered hole located at a lower side of the cylindrical hole.

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