Intelligent micro-bubble gun and control method

Abstract

A smart microbubble gun and its control method are disclosed. A water leakage sensor is installed inside the air pipe connecting sleeve. A microswitch for monitoring the axial displacement of the diaphragm and a PCB control board are installed inside the diaphragm mounting base. An indicator light is also installed on the outside of the diaphragm mounting base. The water leakage sensor, microswitch, and indicator light are all electrically connected to the PCB control board. The PCB control board is connected to a centralized control board via wiring. The centralized control board is connected to a PLC, and the PLC is connected to a central control room, meeting the requirements of intelligent industrial control. This invention enables the system to automatically identify and shut down the faulty microbubble gun when it malfunctions. Simultaneously, the central control room can promptly detect the faulty microbubble gun and repair or replace it in a timely manner. This avoids insufficient or uneven aeration in the flotation column, ensuring continuous, effective, and stable control of flotation parameters and reducing the impact of microbubble gun malfunctions on flotation column parameters.

Description

Technical Field

[0001] This invention relates to mineral processing equipment, and in particular to an intelligent microbubble gun and its control method. Background Technology

[0002] As a core component of mineral processing equipment, the microbubble gun (also called a microbubble generator) directly affects the quality of flotation operations. Large-scale microbubble flotation equipment typically contains hundreds of microbubble guns, distributed across different stages of the process. If a microbubble gun malfunctions and is not addressed promptly, the flotation effect will be compromised, preventing the flotation from meeting specified parameters. Therefore, to distinguish which microbubble gun is malfunctioning among numerous others, a patent exists (CN2017104880790, titled "An Automatic Fault Alarm Microbubble Gun and its Detection and Control Method") that... Mechanical sensors for detecting air pressure and airflow are installed inside the microbubble gun, while an alarm device is installed outside the microbubble gun. When the sensor detects that there is an air pressure greater than one standard atmosphere inside the microbubble gun but no airflow is formed, the control indicator light will illuminate. This allows the system to identify the faulty microbubble guns from among many others, which is quite effective. However, since the indicator light only serves as a fault alarm, and there are various types of faults, the specific fault cannot be determined solely by the indicator light. Furthermore, continuous manual inspection is still required to detect whether the indicator light is on. Therefore, this system cannot meet the requirements for automation and intelligence in existing mineral processing equipment. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing an intelligent microbubble gun and control method that enables unified management of all microbubble guns and different fault diagnosis.

[0004] To achieve the above objectives, this invention first proposes an intelligent microbubble gun, comprising an outer tube, an air tube connecting sleeve, a diaphragm mounting base, and a diaphragm. The air tube connecting sleeve is a T-junction, with one end detachably connected to the outer tube and the other end fitted with the diaphragm mounting base. A quick-connect air tube connector is provided on the third end of the air tube connecting sleeve, which is connected to an air source via an air tube and an air source solenoid valve. A diaphragm is installed inside the diaphragm mounting base. A nozzle is installed at the front end of the outer tube. An inner rod is coaxially installed inside the outer tube, with a plug at one end of the inner rod matching the inner cavity of the nozzle. One end is axially linked to the diaphragm via a connecting device. A water leakage sensor is installed inside the air pipe connecting sleeve. A micro switch for monitoring the axial displacement of the diaphragm and a PCB control board are installed inside the diaphragm mounting base. An indicator light is also installed on the outside of the diaphragm mounting base. The water leakage sensor, micro switch, and indicator light are all electrically connected to the PCB control board. The PCB control board is also equipped with a power module for controlling the opening and closing of the intelligent microbubble gun. The PCB control board is connected to a centralized control board via wiring. The centralized control board is connected to a PLC. The PLC is connected to the central control room.

[0005] The above scheme uses a leakage sensor to detect whether the microbubble gun is experiencing backflow, and a microswitch to detect whether the diaphragm's axial displacement is within acceptable limits to determine if there is any blockage and whether the air intake is normal. The PLC receives signals from the leakage sensor and the microswitch, automatically detecting and judging whether each microbubble gun is operating normally. This allows for timely detection of microbubble gun malfunctions, enabling prompt repair or replacement, thus preventing insufficient or uneven aeration of the flotation column. This ensures continuous, effective, and stable control of flotation parameters, minimizing the impact of microbubble gun malfunctions on flotation column performance. In the absence of timely manual intervention, the system can also automatically shut down the microbubble guns and close the air passages to prevent damage to components in the air path caused by backflow from a single microbubble gun.

[0006] In this embodiment, the PCB control board is connected to the centralized control board via the CAN protocol, and the centralized control board is connected to the PLC via the RS485 protocol.

[0007] In this embodiment, the data transmitted by the PCB control board includes micro switch signals, water leakage sensor signals, power on / off signals of the gas source solenoid valve, and the cumulative running time of the PCB control board.

[0008] In this embodiment, the water leakage sensor is a variable capacitive water leakage sensor, which includes an outer electrode, an inner electrode, a base sleeve, and a water-absorbing filling layer. The outer electrode is cylindrical, and the inner electrode is cylindrical. The inner electrode is coaxially inserted into the outer electrode, with a gap between them. The inner electrode is fixed to the outer electrode by a non-conductive base sleeve, and the space between the inner and outer electrodes is filled with the water-absorbing filling layer. When there is no water in the microbubble gun, the water leakage sensor acts as an air capacitor. When water enters the microbubble gun, the water-absorbing filling layer absorbs water, and the water leakage sensor becomes a water-dielectric capacitor. This difference in capacitance allows for stable and effective identification of whether a leak has occurred, and the leakage signal is then transmitted to the PLC via the PCB control board.

[0009] In this embodiment, the indicator light is a dual-color LED indicator light.

[0010] In this embodiment, the diaphragm mounting base includes a front diaphragm sleeve and a rear diaphragm sleeve. The front diaphragm sleeve is fixed to the tracheal connecting sleeve, and the rear diaphragm sleeve is detachably and sealed to the front diaphragm sleeve. The front and rear diaphragm sleeves are coaxially connected, and the outer ring of the diaphragm is clamped and sealed by the front and rear diaphragm sleeves. The diaphragm seals and divides the inner cavity of the diaphragm mounting base into a front diaphragm chamber and a rear diaphragm chamber. A baffle is provided inside the rear diaphragm sleeve. The baffle has an arc-shaped groove on the side facing the diaphragm. The arc-shaped groove matches the shape of the diaphragm after it bulges out. After the diaphragm bulges out, it is supported and adhered to the arc-shaped groove of the baffle to limit the diaphragm from excessive deformation and damage.

[0011] In this embodiment, the PCB control board is installed in the rear cavity, and the indicator light is installed on the outside of the diaphragm rear sleeve.

[0012] In this embodiment, the micro switch is installed on the back of the PCB control board. When the diaphragm bulges up and supports the arc-shaped groove, the micro switch is triggered.

[0013] In this embodiment, the water leakage sensor is installed inside the diaphragm front sleeve or the air pipe connection sleeve.

[0014] The present invention also includes a method for controlling the above-mentioned intelligent microbubble gun, wherein each intelligent microbubble gun has a unique number on its PCB control board, and the working status, device number and device location of all intelligent microbubble guns are displayed on the display device in the control room.

[0015] When the intelligent micro-bubble gun is working properly:

[0016] When the PCB control board of the intelligent microbubble gun is initially powered on, the green LED indicator flashes, completing the power-on self-test and sending this signal to the PLC and the central control room. The PCB control board enters standby mode. At this time, the PCB control board starts the power module, controls the air source solenoid valve to start, and introduces high-pressure air into the intelligent microbubble gun. The intelligent microbubble gun starts to work normally. The PLC detects that the PCB control board is in the running state, the micro switch is in the triggered state, and the water leakage sensor does not send a water leakage signal. The green indicator light is constantly on. The PLC determines and displays that the working status of the intelligent microbubble gun is normal, and then the PLC transmits the signal that the working status of the intelligent microbubble gun is normal to the central control room.

[0017] When the smart micro-bubble gun malfunctions:

[0018] When the PLC detects that the PCB control board is in operation, the micro switch has no trigger signal, and the water leakage sensor has no leakage signal, it indicates that the diaphragm axial displacement has not triggered the micro switch, meaning the microbubble gun is not working properly. At this time, the indicator light flashes red, and the PCB control board transmits this signal to the PLC. The PLC then transmits the abnormal start signal to the central control room. The central control room displays that the corresponding number of intelligent microbubble guns has an abnormal start-up action and issues an alarm. If the PLC detects that the central control room has not issued a manual intervention command within the set time, the PLC sends a power-off signal to the corresponding PCB control board, and the PCB control board controls the air source solenoid valve of the malfunctioning intelligent microbubble gun to close.

[0019] When the intelligent microbubble gun malfunctions:

[0020] When the leakage sensor sends a signal, it indicates that water has entered the intelligent microbubble gun. At this time, regardless of whether the microswitch is triggered, the indicator light will remain red. The PCB control board will report the signal to the PLC, which will then transmit the abnormal sealing signal to the central control room. The central control room will display that the corresponding intelligent microbubble gun is in an abnormal water leakage state and issue an alarm. If the central control room does not issue a manual intervention command within the set time, the PLC will send a power-off signal to the corresponding PCB control board. The PCB control board will then shut down the air source solenoid valve of the malfunctioning intelligent microbubble gun.

[0021] Using the above method, each microbubble gun is assigned a unique number. The PLC associates this number with the corresponding microbubble gun's location. Simultaneously, a display device shows the real-time status and location of each microbubble gun, and an audible alarm alerts the user when a microbubble gun malfunctions. This ensures timely detection of microbubble gun failures. By using the display device showing the base of the malfunctioning microbubble gun, along with the indicator lights on the microbubble gun, the faulty microbubble gun can be quickly located, allowing for timely repair or replacement. If the system issues an alarm but no manual intervention is provided, the system will automatically shut down the faulty microbubble gun after a certain period to prevent further damage. This achieves automated and intelligent equipment management and prevents water seepage and backflow caused by microbubble gun malfunctions, thus avoiding damage to air circuit components and the air compressor.

[0022] In summary, this invention uses a leakage sensor to detect whether the microbubble gun is experiencing backflow, and a microswitch to detect whether the diaphragm's axial displacement is within acceptable limits to determine if the diaphragm is functioning properly and whether there are any issues such as jamming or air leakage. The PLC receives signals from the leakage sensor and the microswitch, and indicator lights, displays in the control room, and audible alarms are used to alert personnel in the control room to any abnormalities. This allows for timely detection of microbubble gun malfunctions, enabling prompt repair or replacement. This prevents insufficient or uneven aeration in the flotation column, ensuring continuous, effective, and stable control of flotation parameters and minimizing the impact of microbubble gun malfunctions on flotation column performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the water leakage sensor of the present invention.

[0025] Figure 3 This is a control principle diagram of the present invention.

[0026] In the attached diagram: 1. Air tube connecting sleeve; 11. Air tube quick-connect fitting; 2. Foaming nozzle; 21. Outer tube; 22. Inner rod; 23. Spring; 24. Nozzle; 25. Plug; 3. Diaphragm mounting base; 31. Diaphragm front sleeve; 32. Diaphragm rear sleeve; 33. Diaphragm; 34. Baffle; 4. Microswitch; 5. Leakage sensor; 51. Outer electrode; 52. Inner electrode; 53. Base sleeve; 54. Water-absorbing filling layer; 6. PCB control board; 7. Indicator light; 8. Aviation connector. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0029] Example 1:

[0030] like Figure 1 As shown, the present invention includes an intelligent microbubble gun, comprising a foaming nozzle 2, an air tube connecting sleeve 1, a diaphragm mounting base 3, and a diaphragm 33. The foaming nozzle 2 includes an outer tube 21, an inner rod 22, a nozzle 24, and a plug 25. The nozzle 24 is installed at the front end of the outer tube 21, and the inner rod 22 is coaxially installed inside the outer tube 21. One end of the inner rod 22 is provided with a plug 25 that matches the inner cavity of the nozzle 24, and the other end of the inner rod 22 is axially linked to the diaphragm 33 through a connecting device. The air tube connecting sleeve 1 is a T-junction, with one end detachably connected to the outer tube 21 and the other end installed with the diaphragm mounting base 3. The third end of the air tube connecting sleeve 1 is provided with an air tube quick-connect fitting 11. The diaphragm 33 is installed inside the diaphragm mounting base 3. 3 includes a diaphragm front sleeve 31 and a diaphragm rear sleeve 32. The diaphragm front sleeve 31 is fixed to the tracheal connecting sleeve 1, and the diaphragm rear sleeve 32 is detachably and sealed to the diaphragm front sleeve 31. Specifically, the diaphragm front sleeve 31 and the diaphragm rear sleeve 32 are coaxially connected. The outer ring of the diaphragm 33 is clamped and sealed by the diaphragm front sleeve 31 and the diaphragm rear sleeve 32. The diaphragm 33 seals and divides the inner cavity of the diaphragm mounting base 3 into a diaphragm front chamber and a diaphragm rear chamber. The diaphragm rear sleeve 32 is provided with a baffle 34. The baffle 34 has an arc-shaped groove on the side facing the diaphragm 33. The arc-shaped groove matches the shape of the diaphragm 33 after it bulges out. After the diaphragm 33 bulges out, it is supported and attached to the arc-shaped groove of the baffle to limit the diaphragm 33 from excessive deformation and damage.

[0031] A spring 23 is provided between the inner rod and the outer tube 21. In the initial state, the inner rod pushes the plug 25 and the nozzle 24 together axially under the action of the spring 23 to form a seal. In the working state, high-pressure gas is introduced into the air pipe connecting sleeve 1. The high-pressure gas causes the diaphragm 33 to bulge, thereby driving the inner rod to move, so that the plug 25 and the nozzle 24 are separated. At the same time, the spring 23 is compressed, and the high-pressure gas is sprayed out from the nozzle 24. When the high-pressure gas supply stops, the inner rod returns to its original position under the action of the spring 23, and the plug 25 seals the nozzle 24 again.

[0032] A water leakage sensor 5 is installed inside the tracheal tube connecting sleeve 1. A micro switch 4 for monitoring the axial displacement of the diaphragm 33 and a PCB control board 6 are installed inside the diaphragm mounting base 3. An indicator light 7 is also installed on the outside of the diaphragm mounting base 3. Specifically: after the diaphragm 33 bulges out and is supported and attached to the arc-shaped groove of the baffle, the diaphragm 33 triggers the micro switch 4; the water leakage sensor 5 is installed inside the front sleeve 31 of the diaphragm or the tracheal tube connecting sleeve 1; the PCB control board 6 is installed in the rear chamber; the indicator light 7 is installed on the outside of the rear sleeve 32 of the diaphragm; and the aviation connector 8 is installed at the bottom of the rear sleeve 32 of the diaphragm.

[0033] like Figure 2 As shown, in this embodiment, the water leakage sensor 5 is a variable capacitive water leakage sensor 5. The water leakage sensor 5 includes an outer electrode 51, an inner electrode 52, a base sleeve 53, and a water-absorbing filling layer 54. The outer electrode 51 is cylindrical, and the inner electrode 52 is cylindrical. The inner electrode 52 is coaxially inserted into the outer electrode 51, and there is a gap between the inner electrode 52 and the outer electrode 51. The inner electrode 52 is fixed in the outer electrode 51 by the non-conductive base sleeve 53, and the space between the inner electrode 52 and the outer electrode 51 is filled with the water-absorbing filling layer 54. When there is no water in the microbubble gun, the water leakage sensor 5 is equivalent to an air capacitor. When water enters the microbubble gun, the water-absorbing filling layer 54 absorbs water, and the water leakage sensor 5 becomes a water-dielectric capacitor. In this way, the difference in capacitance can stably and effectively identify whether there is a leak, and then the water leakage signal is transmitted to the PLC through the PCB control board 6.

[0034] The water leakage sensor 5, micro switch 4, indicator light 7, and air source solenoid valve controlling the air intake of the intelligent microbubble gun are all electrically connected to the PCB control board 6. The PCB control board 6 is connected to the centralized control board via the CAN protocol, and the centralized control board is connected to the PLC via the RS485 protocol. The control room is equipped with display devices and sound alarm devices, and the PLC is electrically connected to the display devices and sound alarm devices.

[0035] In this embodiment, the data transmitted by the PCB control board 6 includes the micro switch 4 signal, the water leakage sensor 5 signal, the power on / off signal of the air source solenoid valve for the intelligent microbubble gun, and the cumulative running time of the PCB control board 6. The water leakage sensor 5 is a capacitive water sensor.

[0036] Example 2:

[0037] The present invention also includes a method for controlling the intelligent microbubble gun in Embodiment 1. Each intelligent microbubble gun has a unique number on its PCB control board 6. The PCB control board 6 communicates via CAN protocol and can connect up to 80 terminals in series. The centralized control board communicates with the PLC via RS485 protocol, enabling the detection and control of up to 8 groups of 640 PCB terminals. The relationship between the number of the PCB control board 6 and the position of the corresponding intelligent microbubble gun is recorded in the PLC. All the PCB control boards 6 of the intelligent microbubble guns upload data to the centralized control board via CAN bus. The centralized control board then exchanges data with the PLC via RS485 communication protocol. The display device in the control room displays the working status, device number, and device position of all intelligent microbubble guns.

[0038] When the intelligent micro-bubble gun is working properly:

[0039] When the intelligent microbubble gun PCB control board 6 is initially powered on, the green LED indicator 7 flashes, completing the power-on self-test and sending this signal to the PLC and central control room. The PCB control board 6 then enters standby mode. At this time, the PCB control board 6 starts the power module to output 24V power, opens the solenoid valve on the air inlet pipe, and connects the high-pressure air. The intelligent microbubble gun begins to work normally. At this time, the PCB control board 6 is in running mode, the micro switch 4 is in the triggered state, the water leakage sensor 5 does not send a water leakage signal, the green indicator 7 is constantly lit, and the PLC determines and displays that the working status of the intelligent microbubble gun is normal.

[0040] When the smart micro-bubble gun malfunctions:

[0041] When the PCB control board 6 is in operation and the air source solenoid valve is open, if the intelligent microbubble gun experiences problems such as a stuck nozzle 25 or inner rod, blocked air passage, air leakage in the front chamber of the microbubble gun diaphragm, or damage to the diaphragm 33, the diaphragm 33 and the stuck nozzle 25 will not move properly. At this time, the micro switch 4 will not trigger a signal, indicating that the bubble gun is stuck, or the air intake is abnormal, or there is an air leakage. The water leakage sensor 5 will not send a water leakage signal, which means that the axial displacement of the diaphragm 33 will not trigger the micro switch 4, indicating that the microbubble gun is not starting properly. At this time, the LED indicator 7 will flash red and report this information to the PLC and the central control room. The central control room will display the abnormal start-up action of the corresponding numbered intelligent microbubble gun and issue an alarm. If no manual intervention is performed at this time, the system will automatically close the air source solenoid valve of the intelligent microbubble gun after 3 minutes (this time can be set in the system operation interface in the central control room).

[0042] When the intelligent microbubble gun malfunctions:

[0043] When the intelligent microbubble gun experiences sealing problems due to wear on the nozzle 24 or delamination of the plug 25, water will seep into the gun. Once water enters, the water leakage sensor 5 will send a leakage signal. When the PCB control board 6 detects the leakage signal, the LED indicator 7 will remain on red. The PCB control board 6 will report this information to the PLC and the central control room. The system will display that the intelligent microbubble gun with the corresponding number is in an abnormal working state due to water leakage and will issue an alarm. If no manual intervention is performed at this time, the system will automatically shut off the air source solenoid valve of the intelligent microbubble gun after 1 minute (this time can be set in the system operation interface in the central control room) to prevent backflow of slurry and damage to components such as air circuit control and detection.

[0044] Using the above method, each microbubble gun is assigned a unique number. The PLC associates the number with the location of the corresponding microbubble gun. At the same time, the status and location of each microbubble gun are displayed in real time on the display device. An audible alarm device alerts the user when a microbubble gun malfunctions, allowing for timely detection of microbubble gun failures. By using the display device to show the base of the malfunctioning microbubble gun, along with the indicator lights on the microbubble gun, the faulty microbubble gun can be quickly located, allowing for timely repair or replacement.

[0045] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A smart microbubble gun, comprising an outer tube, an air tube connecting sleeve, a diaphragm mounting base, and a diaphragm, wherein the air tube connecting sleeve is a T-junction, one end of which is detachably connected to the outer tube, and the other end is fitted with the diaphragm mounting base; a quick-connect air tube connector is provided on the third end of the air tube connecting sleeve, the quick-connect air tube connector being connected to an air source via an air tube and an air source solenoid valve; a diaphragm is installed inside the diaphragm mounting base; a nozzle is installed at the front end of the outer tube; an inner rod is coaxially installed inside the outer tube; one end of the inner rod is provided with a plug matching the inner cavity of the nozzle; and the other end of the inner rod is axially linked to the diaphragm via a connecting device, characterized in that: A water leakage sensor is installed inside the air tube connecting sleeve. A micro switch for monitoring the axial displacement of the diaphragm and a PCB control board are installed inside the diaphragm mounting base. An indicator light is also installed on the outside of the diaphragm mounting base. The water leakage sensor, micro switch, and indicator light are all electrically connected to the PCB control board. The PCB control board is also equipped with a power module for controlling the opening and closing of the intelligent microbubble gun. The PCB control board is connected to a centralized control board via wiring. The centralized control board is connected to a PLC. The PLC is connected to the central control room.

2. The smart micro-bubble gun of claim 1, wherein: The PCB control board is connected to the central control board via the CAN protocol, and the central control board is connected to the PLC via the RS485 protocol.

3. The smart micro-bubble gun of claim 1, wherein: The data transmitted by the PCB control board includes micro switch signals, water leakage sensor signals, power on / off signals of the gas source solenoid valve, and the cumulative running time of the PCB control board.

4. The intelligent microbubble gun according to claim 1, characterized in that: The water leakage sensor is a variable capacitive water leakage sensor, which includes an outer electrode, an inner electrode, a base sleeve, and a water-absorbing filling layer. The outer electrode is cylindrical, and the inner electrode is cylindrical. The inner electrode is coaxially inserted into the outer electrode, and there is a gap between the inner electrode and the outer electrode. The inner electrode is fixed in the outer electrode by a non-conductive base sleeve, and the space between the inner electrode and the outer electrode is filled with a water-absorbing filling layer.

5. The smart micro-bubble gun of claim 1, wherein: The indicator light is a dual-color LED indicator light.

6. The smart micro-bubble gun according to any one of claims 1 to 4, characterized in that: The diaphragm mounting base includes a front diaphragm sleeve and a rear diaphragm sleeve. The front diaphragm sleeve is fixed to the tracheal connecting sleeve, and the rear diaphragm sleeve is detachably and sealed to the front diaphragm sleeve. The front and rear diaphragm sleeves are coaxially connected. The outer ring of the diaphragm is clamped and sealed by the front and rear diaphragm sleeves. The diaphragm seals and divides the inner cavity of the diaphragm mounting base into a front diaphragm chamber and a rear diaphragm chamber. A baffle is provided inside the rear diaphragm sleeve. The baffle has an arc-shaped groove on the side facing the diaphragm. The arc-shaped groove matches the shape of the diaphragm after it bulges out. After the diaphragm bulges out, it is supported and adhered to the arc-shaped groove of the baffle.

7. The smart microbubble gun of claim 6, wherein: The PCB control board is installed in the rear cavity, and the indicator light is installed on the outside of the diaphragm rear sleeve.

8. The smart microbubble gun of claim 7, wherein: The micro switch is installed on the back of the PCB control board. When the diaphragm bulges up and supports the arc-shaped groove, the micro switch is triggered.

9. The smart microbubble gun of claim 6, wherein: The leakage sensor is installed inside the diaphragm front sleeve or the air pipe connection sleeve.

10. A method for controlling the intelligent microbubble gun according to any one of claims 1 to 9, characterized in that: Each smart microbubble gun has a unique PCB control board number. The display device in the central control room displays the working status, device number, and device location of all smart microbubble guns. When the intelligent micro-bubble gun is working properly: When the PCB control board of the intelligent microbubble gun is initially powered on, the green LED indicator flashes, completing the power-on self-test and sending this signal to the PLC and the central control room. The PCB control board device enters the standby state. At this time, the PCB control board starts the power module, controls the air source solenoid valve to start, and introduces high-pressure air into the intelligent microbubble gun. The intelligent microbubble gun starts to work normally. The PLC detects that the PCB control board is in the running state, the micro switch is in the triggered state, and the water leakage sensor does not send a water leakage signal. The green indicator light is constantly on. The PLC determines and displays that the working status of the intelligent microbubble gun is normal, and then the PLC transmits the signal that the working status of the intelligent microbubble gun is normal to the central control room. When the smart micro-bubble gun malfunctions: When the PLC detects that the PCB control board is in operation, the micro switch has no trigger signal, and the water leakage sensor has no leakage signal, it indicates that the diaphragm axial displacement has not triggered the micro switch, meaning the microbubble gun is not working properly. At this time, the indicator light flashes red, and the PCB control board transmits this signal to the PLC. The PLC then transmits the abnormal start signal to the central control room. The central control room displays that the corresponding number of intelligent microbubble guns has an abnormal start-up action and issues an alarm. If the PLC detects that the central control room has not issued a manual intervention command within the set time, the PLC sends a power-off signal to the corresponding PCB control board, and the PCB control board controls the air source solenoid valve of the malfunctioning intelligent microbubble gun to close. When the intelligent microbubble gun malfunctions: When the leakage sensor sends a signal, it indicates that water has entered the intelligent microbubble gun. At this time, regardless of whether the microswitch is triggered, the indicator light will remain red. The PCB control board will report the signal to the PLC, which will then transmit the abnormal sealing signal to the central control room. The central control room will display that the corresponding intelligent microbubble gun is in an abnormal water leakage state and issue an alarm. If the central control room does not issue a manual intervention command within the set time, the PLC will send a power-off signal to the corresponding PCB control board. The PCB control board will then shut down the air source solenoid valve of the malfunctioning intelligent microbubble gun.

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