A bubble generating device and a bubble observation system

Abstract

This application discloses a bubble generation device and a bubble observation system, relating to the field of bubble generation. The bubble generation device includes a main body, a baffle assembly, and a material supply assembly. The bubble generation device of this application uses multiple strip electrode assemblies as the inner bottom wall of the electrolyte chamber. The strip electrode assembly is provided with a row of bubble generation columns. Different numbers of strip electrode assemblies can be activated as needed to control the number of bubbles generated. The diameter of each row of bubble generation columns can be set to be different, generating bubbles of different diameters as needed with controllable diameter errors. The baffle assembly can generate a temperature gradient and use the Marangoni effect to pull the bubbles at the top of the bubble generation columns upward and detach them from the bubble generation columns, thereby achieving a self-driven bubble effect and improving bubble generation efficiency. The bubble observation system includes a terminal assembly, a microfluidic chip, an external main power supply, a first observation unit, a second observation unit, a bubble counting unit, a heating control unit, and the bubble generation device.

Description

Technical Field

[0001] This application relates to the field of bubble generation, and more particularly to a bubble generation device and a bubble observation system. Background Technology

[0002] Micro- and nano bubble generation devices are frequently needed in laboratory research, and electrolysis is one of the existing technologies for generating bubbles.

[0003] Existing micro-nano bubble generation devices have the following problems: 1. The number of bubbles cannot be quantitatively controlled; 2. The rate of bubble detachment and self-driving is slow; 3. The diameter of the generated bubbles varies greatly, ranging from hundreds of micrometers to tens of nanometers. Summary of the Invention

[0004] This application provides a bubble generating device and a bubble observation system, which can quantitatively generate bubbles and enable the bubbles to be rapidly driven to detach.

[0005] In a first aspect, this application provides a bubble generating apparatus, comprising:

[0006] The main body of the device includes a main cylinder and multiple strip electrode assemblies. The main cylinder is provided with an electrolyte chamber. The multiple strip electrode assemblies are arranged side by side at the bottom of the main cylinder along its width direction, and the multiple strip electrode assemblies are configured as the inner bottom wall of the electrolyte chamber. The strip electrode assembly includes an anode, a partition, and a cathode stacked in sequence. The anode is provided with a row of bubble generating columns spaced apart along the length direction of the main cylinder, and the spaces between adjacent bubble generating columns are filled with insulating parts. An external power supply is electrically connected to the anode and the cathode respectively.

[0007] A baffle assembly is disposed between two adjacent strip electrode assemblies along the width direction of the main body cylinder to separate multiple bubble channels in the electrolyte chamber; the baffle assembly includes multiple strip heating plates stacked in sequence, the temperature of the multiple strip heating plates increasing sequentially from top to bottom to form a temperature gradient, so as to drive the bubbles to detach from the bubble generation column;

[0008] The material supply assembly includes a gas cylinder unit and a liquid cylinder unit, both of which are connected to the electrolyte chamber. The gas cylinder unit is used to supply carbon dioxide to the electrolyte chamber, and the liquid cylinder unit is used to supply carbonate solution to the electrolyte chamber.

[0009] Preferably, the main body is made of transparent material and has a rectangular frame shape in cross-section.

[0010] Preferably, the main body of the device is inclined relative to the horizontal plane, so that the bubble channel is inclined relative to the horizontal plane.

[0011] Preferably, the anode is formed into multiple bubble-generating columns through an etching process.

[0012] Preferably, the insulating part is made of ceramic.

[0013] Preferably, the external power supply and the strip electrode assembly are configured in a one-to-one correspondence, and a control switch is provided between the external power supply and the strip electrode assembly.

[0014] Preferably, the lengths of the strip electrode assembly and the strip heating plate are equal.

[0015] Preferably, the baffle assembly includes three strip heating plates whose temperature can be controlled independently, and the three strip heating plates are stacked.

[0016] Secondly, this application provides a bubble observation system, including a terminal component, a microfluidic chip, an external main power supply, a first observation unit, a second observation unit, a bubble counting unit, a heating control unit, and a bubble generating device;

[0017] The terminal components are electrically connected to the microfluidic chip, the external main power supply, the first observation unit, the second observation unit, the bubble counting unit, and the heating control unit, respectively.

[0018] The inlet of the microfluidic chip is connected to the electrolyte chamber through a docking channel, and air bubbles flow to the microfluidic chip through the docking channel;

[0019] The external main power supply is connected to the external sub-power supply through the main control switch, which is used to control the working status of the external sub-power supply;

[0020] The first observation unit is located above the electrolyte chamber and is used to observe the bubble generation process;

[0021] The second observation unit is positioned above the microfluidic chip and is used to observe the flow of bubbles within the microfluidic chip.

[0022] A bubble counting unit is located above the docking channel to record the number of bubbles;

[0023] The heating control unit is electrically connected to the strip heating plate and is used to control the temperature of the strip heating plate;

[0024] The terminal components are connected to the external power supply, gas cylinder unit, and liquid cylinder unit of the bubble generating device.

[0025] The bubble generating device and bubble observation system of this application have at least the following beneficial effects:

[0026] The bubble generation device of this application uses multiple strip electrode assemblies as the inner bottom wall of the electrolyte chamber, and then uses multiple baffle assemblies to divide the electrolyte chamber into multiple bubble channels. Each bubble channel is equipped with a strip electrode assembly below it. The anode of the strip electrode assembly is provided with a row of bubble generation columns for generating bubbles. When a strip electrode assembly is connected to an external power source and energized, a bubble is generated at the top of the bubble generation column in the corresponding bubble channel. The number of bubbles is related to the number of bubble generation columns. Different numbers of strip electrode assemblies can be activated as needed to control the number of bubbles generated. Since the bubbles are generated at the top of the bubble generation columns, the bubble diameter is directly related to the outer diameter of the top of the bubble generation column. The diameter of each row of bubble generation columns can be set to be different, so bubbles of different diameters with controllable diameter error can be generated as needed. The baffle assembly adopts multiple stacked strip heating plates. The multiple strip heating plates can generate heat and produce a temperature gradient, so that the temperature in the bubble channel increases from top to bottom. The Marangoni effect is used to pull the bubbles at the top of the bubble generation columns upward and make them detach from the bubble generation columns, so as to achieve the effect of bubble self-driving and improve the bubble generation efficiency. Attached Figure Description

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0028] Figure 1 This is a side view of the bubble generating apparatus of this application (showing a partial enlarged view).

[0029] Figure 2 This is a top view of the bubble generating apparatus of this application;

[0030] Figure 3 This is an exploded view of the bubble generating apparatus of this application in the height direction;

[0031] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 These are schematic diagrams showing the states of bubble generating columns and insulating parts of different specifications. (A) indicates that the upper surface of a small-diameter bubble generating column is flush with the upper surface of the insulating part; (B) indicates that the upper surface of a small-diameter bubble generating column is higher than the upper surface of the insulating part; (C) indicates that the upper surface of a small-diameter bubble generating column is lower than the upper surface of the insulating part; (D) indicates that the upper surface of a large-diameter bubble generating column is flush with the upper surface of the insulating part; (E) indicates that the upper surface of a large-diameter bubble generating column is higher than the upper surface of the insulating part; (F) indicates that the upper surface of a large-diameter bubble generating column is lower than the upper surface of the insulating part.

[0033] Figure 6 This is a schematic diagram of the tilted state of the main body of the bubble generating apparatus of this application;

[0034] Figure 7 This is a schematic diagram of the bubble observation system of this application;

[0035] Figure 8 This is a connection diagram of the bubble observation system of this application;

[0036] The annotations in the attached figures are explained as follows:

[0037] 1. Main body tube;

[0038] 2. Strip electrode assembly; 21. Anode; 211. Bubble generation column; 22. Separator; 23. Cathode; 24. Insulation part;

[0039] 3. Baffle assembly; 31. Strip heating plate;

[0040] 4. Gas cylinder unit;

[0041] 5. Liquid bottle unit;

[0042] 6. External power supply; 61. Individual control switch;

[0043] 7. Docking channel;

[0044] 8. Air bubbles;

[0045] 9. Bubble channel;

[0046] 101. Terminal component; 102. Microfluidic chip; 103. External main power supply; 1031. Main control switch; 104. First observation unit; 105. Second observation unit; 106. Bubble counting unit; 107. Heating control unit; 108. Waste liquid tank. Detailed Implementation

[0047] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0049] like Figure 1 As shown in the figure, this embodiment discloses a bubble generating device and a bubble observation system. First, the bubble generating device of this embodiment will be briefly introduced.

[0050] like Figure 1 As shown, the bubble generating device includes a main body, a baffle assembly 3, and a material supply assembly. The main body includes a main cylinder 1 and multiple strip electrode assemblies 2. The material supply assembly includes a gas cylinder unit 4 and a liquid cylinder unit 5.

[0051] like Figure 1 As shown, the main body cylinder 1 is made of transparent quartz material, and the cross-sectional shape of the main body cylinder 1 is a rectangular frame. The shape of the main body cylinder 1 can be two types. The first type is a closed structure with the whole body closed. The inside of the closed structure is an electrolyte chamber, and multiple strip electrode assemblies 2 are set at the bottom of the closed structure. The second type is that the bottom of the main body cylinder 1 is set to an open state, and multiple strip electrode assemblies 2 are set at the bottom of the main body cylinder 1. The multiple strip electrode assemblies 2 set at the bottom of the main body cylinder 1 act as the bottom cover of the main body cylinder 1, so that an electrolyte chamber can be formed inside the main body cylinder 1. The upper surface of the multiple strip electrode assemblies 2 is configured as the inner bottom wall of the electrolyte chamber, and is in direct contact with the material in the electrolyte chamber.

[0052] like Figure 1 As shown, a docking channel 7 is provided on the side of the main body cylinder 1. One end of the docking channel 7 is connected to the bottom of the main body cylinder 1, which is used to provide a path for the bubbles to flow from the electrolyte chamber to other locations.

[0053] like Figure 2 As shown, in order to facilitate understanding of the technical solution of this embodiment, the following direction is defined: the width direction of the main body cylinder 1 is configured as horizontal longitudinal, and the length direction of the main body cylinder 1 is configured as horizontal transverse.

[0054] like Figure 2As shown, there are multiple strip electrode assemblies 2. In this embodiment, fourteen are shown. Multiple strip electrode assemblies 2 are arranged side by side and closely arranged at the bottom of the main body cylinder 1 along the width direction.

[0055] like Figure 1 , Figure 3 and Figure 4 As shown, each strip electrode assembly 2 includes an anode 21, a partition 22, and a cathode 23. The lower surface of the anode 21 is laminated to the upper surface of the partition 22. A row of bubble-generating columns 211 is formed on the upper surface of the anode 21 by etching or engraving. For example, in this embodiment, the anode 21 forms a plurality of twenty-three circular bubble-generating columns 211 arranged at equal intervals along the length direction of the main body cylinder 1. Except for the positions where the bubble-generating columns 211 are set, the upper surface of the anode 21 is filled with insulating parts 24, and the insulating part 24 is made of ceramic material. The partition 22 and the cathode 23 are both thin plate-shaped. The cathode 23 is laminated to the lower surface of the partition 22. The partition 22 is used to allow electrons to move between the two electrodes so that the reaction in the electrolyte chamber can occur normally. In this embodiment, the anode 21, the partition 22, and the cathode 23 are of equal length along the length direction of the main body cylinder 1.

[0056] In this embodiment, different strip electrode assemblies 2 can be provided with bubble generating columns 211 of different specifications. For example, the outer diameter of the bubble generating column 211 has two specifications, namely a small diameter bubble generating column 211 and a large diameter bubble generating column 211.

[0057] like Figure 5 As shown, (A) indicates that the upper surface of the small-diameter bubble generating column 211 is flush with the upper surface of the insulating part 24; (B) indicates that the upper surface of the small-diameter bubble generating column 211 is higher than the upper surface of the insulating part 24; (C) indicates that the upper surface of the small-diameter bubble generating column 211 is lower than the upper surface of the insulating part 24; (D) indicates that the upper surface of the large-diameter bubble generating column 211 is flush with the upper surface of the insulating part 24; (E) indicates that the upper surface of the large-diameter bubble generating column 211 is higher than the upper surface of the insulating part 24; (F) indicates that the upper surface of the large-diameter bubble generating column 211 is lower than the upper surface of the insulating part 24.

[0058] This embodiment can explore the differences in bubble generation and self-driving by setting different sizes and forms of bubble generating columns 211 and setting different relative positions of bubble generating columns 211 and insulating parts 24.

[0059] like Figure 1As shown, the external power supply 6 is electrically connected to the anode 21 and the cathode 23 respectively, and supplies power to the strip electrode assembly 2 through the external power supply 6. In this embodiment, preferably, the external power supply 6 and the strip electrode assembly 2 are arranged in a one-to-one correspondence, which facilitates the independent control of the strip electrode assembly 2. Each external power supply 6 is provided with a control switch 61, which can be used to control whether the external power supply 6 supplies power to the strip electrode assembly 2.

[0060] like Figure 2 and Figure 3 As shown, there are multiple baffle assemblies 3. In this embodiment, multiple strip electrode assemblies 2 are arranged along the width direction of the main body cylinder 1. A baffle assembly 3 is arranged between two adjacent strip electrode assemblies 2. The baffle assembly 3 divides the interior of the electrolyte chamber into multiple parallel bubble channels 9. The length direction of the bubble channel 9 is the length direction of the main body cylinder 1. Each bubble channel 9 is provided with at least one row of bubble generating columns 211. After the top of the bubble generating column 211 generates a bubble, the bubble can move along the length direction of the bubble channel 9.

[0061] like Figure 4 As shown, the baffle assembly 3 includes three strip heating plates 31 stacked sequentially along a direction perpendicular to the strip electrode assembly 2. The bottommost strip heating plate 31 is in close contact with the upper surface of the insulating part 24. The three strip heating plates 31 can generate heat. In this embodiment, the temperature of the three strip heating plates 31 increases sequentially from top to bottom, thereby forming a temperature gradient so that the bubbles in the bubble channel 9 can detach from the top of the bubble generating column 211 upwards.

[0062] like Figure 4 As shown, in this embodiment, the three strip heating plates 31 are all thin plates, and the three strip heating plates 31 can be independently controlled to be heated to a predetermined temperature.

[0063] like Figure 4 As shown, in this embodiment, preferably, the anode 21, partition 22 and cathode 23 of the strip electrode assembly 2 have the same length and width specifications, and the three strip heating plates 31 also have the same length and width specifications. The length and width specifications of the anode 21 are also the same as those of the strip heating plates 31. More preferably, the strip heating plates 31 are respectively attached to the inner sidewall of the electrolyte chamber on both sides of the length direction of the main body cylinder 1.

[0064] like Figure 6As shown, in this preferred embodiment, the main body of the device includes a main cylinder 1 and multiple strip electrode assemblies 2. During use, the main body can be tilted relative to the horizontal plane, so that the bubble channel 9 formed inside the main cylinder 1 by multiple baffle assemblies 3 can be tilted, for example, at an angle θ relative to the horizontal plane. This design allows the buoyancy of the bubble after it is generated to provide some of the upward force, accelerating its detachment speed and facilitating better bubble actuation.

[0065] like Figure 1 As shown, the material supply assembly includes a gas cylinder unit 4 and a liquid cylinder unit 5. The outlet of the gas cylinder unit 4 is connected to the electrolyte chamber to supply carbon dioxide gas, and the outlet of the liquid cylinder unit 5 is connected to the electrolyte chamber to supply a high-concentration carbonate solution. The reaction occurring at the anode 21 is as follows: .

[0066] like Figure 7 and Figure 8 As shown, this embodiment also discloses a bubble observation system, which includes a terminal component 101, a microfluidic chip 102, an external main power supply 103, a first observation unit 104, a second observation unit 105, a bubble counting unit 106, a heating control unit 107, and a bubble generating device.

[0067] The terminal component 101 is electrically connected to the microfluidic chip 102, the external main power supply 103, the first observation unit 104, the second observation unit 105, the bubble counting unit 106, and the heating control unit 107, and controls the operation of each component through the terminal component 101.

[0068] The inlet of the microfluidic chip 102 is connected to the electrolyte chamber through the docking channel 7. All the bubble channels 9 in the electrolyte chamber are connected to the docking channel 7, and the bubbles flow to the microfluidic chip 102 through the docking channel 7.

[0069] The external main power supply 103 is electrically connected to the external sub-power supplies 6 and is used to control the working state of the external sub-power supplies 6. Specifically, the external main power supply 103 is equipped with a main control switch 1031. The external main power supply 103 is electrically connected to all the external sub-power supplies 6 through the main control switch. Therefore, when the main control switch is off, the external main power supply 103 cannot supply power to the external sub-power supplies 6, and thus the external sub-power supplies 6 cannot supply power to the strip electrode assembly 2. When a certain strip electrode assembly 2 needs to be activated, the main control switch is closed, and the sub-control switch connected to the corresponding strip electrode assembly 2 is also closed.

[0070] This embodiment, through the design of a master control switch and individual control switches, can achieve overall control of all strip electrode assemblies 2 and control of individual strip electrode assemblies 2, providing good flexibility.

[0071] The first observation unit 104 is located above the electrolyte chamber and is used to observe the bubble generation process. The first observation unit 104 can be an electron microscope.

[0072] The second observation unit 105 is disposed above the microfluidic chip 102 and is used to observe the flow of bubbles within the microfluidic chip 102. The second observation unit 105 may be an electron microscope.

[0073] A bubble counting unit 106 is positioned above the docking channel 7, which is made of a transparent material to allow the bubble counting unit 106 to observe and record the number of bubbles passing through the docking channel 7. The bubble counting unit 106 is based on existing NTA equipment, such as a nanoparticle tracking analyzer.

[0074] The heating control unit 107 is electrically connected to the three strip heating plates 31. After receiving the control signal from the terminal component 101, the heating control unit 107 can control the three strip heating plates 31 to heat to a predetermined temperature to form a temperature gradient. The heating control unit is selected as an E5CD-H temperature controller.

[0075] The terminal component 101 is also connected to the gas cylinder unit 4 and the liquid cylinder unit 5. After receiving the signal from the terminal component 101, the gas cylinder unit 4 supplies or stops supplying carbon dioxide to the electrolyte chamber. Similarly, after receiving the signal from the terminal component 101, the liquid cylinder unit 5 supplies or stops supplying carbonate solution to the electrolyte chamber.

[0076] In this embodiment, all the detailed control during the bubble observation process, such as the heating degree, the amount of reactant injected, and the design and control of the electrode point difference, will be controlled by the terminal component 101, and all data parameters will also be recorded.

[0077] The bubble observation process in this embodiment is as follows:

[0078] 1. Terminal component 101 controls gas cylinder unit 4 and liquid cylinder unit 5 to inject carbon dioxide and high-concentration carbonate solution into the electrolyte chamber respectively.

[0079] 2. Select the active strip electrode assembly 2 according to actual needs. The terminal assembly 101 controls the external power supply 6 to supply power to the strip electrode assembly 2. Bubbles are formed at the top of the bubble generation column 211 in the corresponding bubble channel 9. The bubble generation process can be observed through the first observation unit 104.

[0080] Third, the terminal component 101 sends a signal to the heating control unit 107, and the three strip heating plates 31 form a temperature gradient to induce a surface tension gradient to achieve a driving effect (Marangoni propulsion). After the bubbles (micro-nano bubbles) are generated, the terminal component 101 sends a control signal to rapidly change the potential of the electrode surface (such as a brief anode 21 pulse) to reduce the interfacial adhesion and thus provide initial power for bubble desorption.

[0081] Fourth, after the bubbles detach from the bubble generation column 211, they travel along the bubble channel 9 and enter the microfluidic chip 102 through the docking channel 7. The bubble counting unit 106 records the number of bubbles, which can not only know the number of bubbles when they are generated (i.e., the number of bubble generation columns 211 in the bubble channel 9), but also understand the change in the number of bubbles after self-driving, thus facilitating further research on bubble self-driving.

[0082] Fifth, the second observation unit 105 facilitates the observation of the flow of bubbles in the microfluidic chip 102. After further observation and study of the self-driven bubbles in the microfluidic chip 102, the bubbles eventually flow into the waste liquid tank 108 from the outlet of the microfluidic chip 102 along with the liquid.

[0083] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A bubble generating device, characterized in that, include: The main body of the device includes a main cylinder (1) and multiple strip electrode assemblies (2). The main cylinder (1) is provided with an electrolyte chamber. The multiple strip electrode assemblies (2) are arranged side by side at the bottom of the main cylinder (1) along the width direction of the main cylinder (1). The multiple strip electrode assemblies (2) are configured as the inner bottom wall of the electrolyte chamber. The strip electrode assembly (2) includes an anode (21), a partition (22) and a cathode (23) stacked in sequence. The anode (21) is provided with a row of bubble generating columns (211) spaced apart along the length direction of the main cylinder (1). An insulating part (24) is filled between adjacent bubble generating columns (211). An external power supply (6) is electrically connected to the anode (21) and the cathode (23) respectively. The baffle assembly (3) is disposed between two adjacent strip electrode assemblies (2) along the width direction of the main body cylinder (1) to separate multiple bubble channels in the electrolyte chamber; the baffle assembly (3) includes multiple strip heating plates (31) stacked in sequence, and the temperature of the multiple strip heating plates (31) increases from top to bottom to form a temperature gradient, so as to drive the bubbles to detach from the bubble generation column (211). The material supply assembly includes a gas cylinder unit (4) and a liquid cylinder unit (5) both connected to the electrolyte chamber. The gas cylinder unit (4) is used to supply carbon dioxide to the electrolyte chamber, and the liquid cylinder unit (5) is used to supply carbonate solution to the electrolyte chamber.

2. The bubble generating device according to claim 1, characterized in that, The main tube (1) is made of transparent material and has a rectangular frame shape in cross section.

3. The bubble generating device according to claim 2, characterized in that, The main body of the device is inclined relative to the horizontal plane so that the bubble channel is inclined relative to the horizontal plane.

4. The bubble generating device according to claim 1, characterized in that, The anode (21) forms multiple bubble-generating columns (211) through an etching process.

5. The bubble generating device according to claim 1, characterized in that, The insulating part (24) is made of ceramic.

6. The bubble generating apparatus according to any one of claims 1 to 5, characterized in that, An external power supply (6) is set up in a one-to-one correspondence with the strip electrode assembly (2), and a control switch is set between the external power supply (6) and the strip electrode assembly (2).

7. The bubble generating apparatus according to any one of claims 1 to 5, characterized in that, The lengths of the strip electrode assembly (2) and the strip heating plate (31) are equal.

8. The bubble generating apparatus according to claim 1, characterized in that, The baffle assembly (3) includes three strip heating plates (31) whose temperature can be controlled independently, and the three strip heating plates (31) are stacked.

9. A bubble observation system, characterized in that, The device includes a terminal component (101), a microfluidic chip (102), an external main power supply (103), a first observation unit (104), a second observation unit (105), a bubble counting unit (106), a heating control unit (107), and a bubble generating device according to any one of claims 1 to 8; The terminal component (101) is electrically connected to the microfluidic chip (102), the external main power supply (103), the first observation unit (104), the second observation unit (105), the bubble counting unit (106), and the heating control unit (107), respectively; The inlet of the microfluidic chip (102) is connected to the electrolyte chamber through the docking channel (7), and the air bubbles flow to the microfluidic chip (102) through the docking channel (7). The external main power supply (103) is connected to the external sub-power supply (6) through the main control switch to control the working status of the external sub-power supply (6); The first observation unit (104) is set above the electrolyte chamber and is used to observe the bubble generation process; The second observation unit (105) is positioned above the microfluidic chip (102) and is used to observe the flow of bubbles within the microfluidic chip (102). A bubble counting unit (106) is positioned above the docking channel (7) to record the number of bubbles; The heating control unit (107) is electrically connected to the strip heating plate (31) and is used to control the temperature of the strip heating plate (31); The terminal component (101) is connected to the external power supply (6), gas cylinder unit (4) and liquid cylinder unit (5) of the bubble generating device.

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