Underwater multi-form controllable bubble curtain generating device and control method thereof

Abstract

The invention provides an underwater multi-form controllable bubble curtain generating device. The underwater multi-form controllable bubble curtain generating device comprises a shell, an air compressor, an air storage tank, a drying filter, a variable adjusting module, a multi-path air path distribution unit, a plurality of annular air hole groups, a closed-loop control unit, a motion control module, an electric driving device, a plurality of A-shaped connecting brackets and an external motion track. According to the underwater multi-form controllable bubble curtain generation device provided by the invention, bubbles of different sizes can be generated through a plurality of annular-belt-shaped air hole groups with different hole depth-to-diameter ratios, diversified rigid body bubble mixed wrapping forms are formed, the multi-path independent variable adjusting module is matched with the closed-loop control unit, crosstalk-free ventilation volume proportion adjustment is carried out, and the bubble curtain generation efficiency is improved. Accurate air supply control is achieved, and the bubble density requirements of different areas are met.

Description

Technical Field

[0001] This invention relates to the fields of marine engineering technology and fluid control, and in particular to an underwater multi-morphological controllable bubble curtain generator and its control method. Background Technology

[0002] Bubble motion in water is characterized by randomness, uncontrollability, and short duration, making it challenging to study its development and changes in water and the mechanism of its action on underwater rigid structures. In the field of underwater engineering, bubble curtains, as a low-cost and easily controllable fluid control method, are widely used in engineering and technical fields such as ship drag reduction design and underwater acoustic detection due to their ability to change water flow characteristics, reduce fluid resistance, and interfere with underwater acoustic signals. The design and related research require bubble curtain generating devices to simulate multiple working conditions.

[0003] Existing underwater bubble generators suffer from problems such as limited bubble morphology, crosstalk in air supply control, uncontrollable distribution, and highly random motion trajectories, making it difficult to achieve directional encapsulation and dynamic modulation of the bubble curtain. Specifically, the bubble morphology is limited, often employing a single-aperture or single-type pore structure, resulting in highly uniform bubble size and difficulty in forming a rigid body mixture of bubbles with different encapsulation morphologies. The air supply control precision is low, often using single-path or simple multi-path air supply modes, lacking an independent pressure regulation mechanism, which easily leads to crosstalk between different air paths, making it impossible to accurately control the bubble density and size in different areas. Bubble trajectory optimization is difficult, and bubbles are easily affected by water flow after generation. The lack of an active control structure makes it difficult to control the fusion, collapse, and motion trajectory of bubbles, affecting the stability of the bubble curtain. Relative motion simulation is insufficient, lacking a stable towing drive unit and a coordinated control mechanism with the rigid body motion state. Most are static rigid body structure air generation forms, unable to simulate the relative motion between the rigid body structure and the water flow under conditions such as low-speed navigation or high-speed motion, making it difficult to reproduce the dynamic characteristics of the bubble curtain under actual working conditions.

[0004] Therefore, it is necessary to provide an underwater multi-morphological controllable bubble curtain generator to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides an underwater multi-morphology controllable bubble curtain generator, which solves the problems of single bubble morphology, poor air supply control, insufficient bubble stability and lack of motion simulation in bubble curtain generators.

[0006] To solve the above-mentioned technical problems, the present invention provides an underwater multi-morphological controllable bubble curtain generator, comprising:

[0007] Housing, air compressor, air tank, dryer filter, variable adjustment module, multi-way air distribution unit, multiple ring-shaped air vent groups, closed-loop control unit, motion control module, electric drive device, multiple A-shaped connecting brackets and external motion track;

[0008] The air compressor is installed on one side inside the housing;

[0009] The gas storage tank is connected to one end of the air compressor via a pipe;

[0010] The drying filter is connected to one side of the gas storage tank via a pipe;

[0011] The variable adjustment module is located on one side of the drying filter;

[0012] The multi-path gas distribution unit is located on one side of the variable adjustment module;

[0013] The plurality of the annular vent groups are respectively connected to one side of the multi-path gas distribution unit;

[0014] The closed-loop control unit is installed inside the housing;

[0015] The motion control module is connected to one side of the closed-loop control unit via a connecting cable;

[0016] The electric drive device is located below the motion control module.

[0017] Preferably, the plurality of the A-shaped connecting brackets are symmetrically connected to both sides of the bottom of the housing.

[0018] Preferably, the external motion track is disposed below the plurality of A-shaped connecting brackets.

[0019] Preferably, both ends of the housing are provided with sealing end caps.

[0020] Preferably, the air compressor, the air tank, and the dryer filter are used to provide clean and stable compressed air.

[0021] Preferably, a disassembly assembly is provided on one side of the dryer filter. The disassembly assembly includes a disassembly shell, two mounting blocks, and two mounting slots. The two mounting blocks are respectively connected to the two sides of the disassembly shell, and the two mounting slots are respectively opened on one side of the dryer filter.

[0022] Preferably, a sealing assembly is provided between the dryer filter and the disassembly housing. The sealing assembly includes a fixing hoop, two arc-shaped fixing plates, two sealing gaskets, and bolts. The fixing hoop is sleeved between the dryer filter and the disassembly housing. The two arc-shaped fixing plates are symmetrically installed on the surface of the fixing hoop. The two sealing gaskets are respectively bonded to the opposite side of the two arc-shaped fixing plates.

[0023] Preferably, the bolt is located on one side of the fixing hoop, and the top of the drying filter is provided with an end cap.

[0024] Preferably, the surface of the drying filter is provided with a viewing component, which includes a transparent plate, a fixing frame, multiple rectangular blocks and multiple threaded bolts. The transparent plate is disposed on the surface of the drying filter, the fixing frame is disposed on the surface of the transparent plate, the multiple rectangular blocks are respectively connected to the left and right sides of the top and bottom of the fixing frame, and the multiple threaded bolts are respectively disposed between the multiple rectangular blocks and the drying filter.

[0025] A control method for an underwater multi-morphological controllable bubble curtain generator includes the following steps:

[0026] S1. System Start-up and Air Source Preparation: Start the air compressor inside the housing. The air compressor compresses the air and delivers it to the air storage tank through the pipeline for storage. The compressed air output from the air storage tank flows into the drying filter through the pipeline. The drying filter removes moisture and impurities from the air to form clean and stable compressed air, providing a qualified air source for the subsequent generation of the bubble curtain.

[0027] S2. Air path parameter adjustment and distribution: The closed-loop control unit sends control commands to the variable adjustment module. The variable adjustment module adjusts the pressure and flow rate of compressed air according to the preset bubble curtain morphology parameters. The adjusted compressed air enters the multi-path air distribution unit. The multi-path air distribution unit distributes the compressed air to multiple annular orifice groups according to the instructions of the closed-loop control unit.

[0028] S3. Initial bubble curtain formation: Compressed air distributed by the multi-path air distribution unit is delivered to the corresponding annular air hole group and ejected through the air holes of different diameters in the annular air hole group to form an initial bubble curtain structure containing large, medium and small bubbles.

[0029] S4. Bubble curtain shape and position control: The closed-loop control unit starts the electric drive device through the motion control module. The electric drive device drives the shell to make uniform speed change movement along the external motion track through the A-shaped connecting bracket, and adjusts the underwater spatial position of the ring-shaped air hole group. At the same time, the closed-loop control unit adjusts the coordination between the bubble ejection direction and the shell movement according to the preset program to further optimize the distribution shape of the bubble curtain.

[0030] S5. Closed-loop monitoring and dynamic adjustment: The closed-loop control unit receives real-time monitoring data from sensors such as flow rate, pressure, and displacement in the system, and compares the current pressure, flow rate, and position parameters of the bubble curtain with the preset parameters. If there is a deviation, the closed-loop control unit immediately sends adjustment commands to the variable adjustment module, the multi-path air distribution unit, and the motion control module to dynamically correct the air path parameters and the shell movement state, ensuring that the bubble curtain always maintains the preset multi-shape effect.

[0031] Compared with related technologies, the underwater multi-morphological controllable bubble curtain generator provided by the present invention has the following beneficial effects:

[0032] This invention provides an underwater multi-morphological controllable bubble curtain generator. Through multiple annular pore groups with differentiated depth-to-diameter ratios, it can generate bubbles of different sizes, forming diverse rigid bubble mixed-envelope morphologies. Multiple independent variable adjustment modules, in conjunction with a closed-loop control unit, perform crosstalk-free airflow ratio adjustment, achieving precise air supply control to meet the bubble density requirements of different areas. The omnidirectional nozzles and guide plates work together to actively regulate the bubble movement direction and trajectory, optimizing the bubble movement trajectory and improving the stability of the bubble curtain. The towed drive unit achieves uniformly variable speed motion, accurately replicating the relative motion under actual working conditions and enhancing the device's engineering practicality. Attached Figure Description

[0033] Figure 1 A schematic diagram of the structure of a first embodiment of an underwater multi-morphological controllable bubble curtain generator provided by the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the universal nozzle assembly;

[0035] Figure 3 A schematic diagram of the structure of a second embodiment of an underwater multi-morphological controllable bubble curtain generator provided by the present invention;

[0036] Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below;

[0037] Figure 5 for Figure 3 The diagram shows a three-dimensional structure of the dryer filter.

[0038] Figure 6 for Figure 5 The enlarged schematic diagram of section B is shown below;

[0039] Figure 7 This is a schematic diagram of the third embodiment of an underwater multi-morphology controllable bubble curtain generating device provided by the present invention;

[0040] Figure 8 Flowchart of the control method for an underwater multi-morphological controllable bubble curtain generator.

[0041] The diagram labels are as follows: 1. Housing; 2. Annular air vent assembly; 21. Universal nozzle assembly; 22. Miniature servo motor; 3. Air compressor; 4. Air tank; 5. Dryer filter; 6. Variable adjustment module; 7. Multi-path air distribution unit; 8. Sealed end cap; 9. Electric drive unit; 10. Motion control module; 11. Closed-loop control unit; 12. A-frame connecting bracket; 13. External motion track.

[0042] 14. Disassembling components; 141. Disassembling the shell; 142. Mounting block; 143. Mounting slot.

[0043] 15. Sealing assembly; 151. Fixing clamp; 152. Arc-shaped fixing plate; 153. Sealing gasket; 154. Bolt.

[0044] 16. End cap,

[0045] 17. Examine the components: 171. Transparent panel, 172. Fixed frame, 173. Rectangular block, 174. Threaded bolt. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] First Embodiment

[0048] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of an underwater multi-morphological controllable bubble curtain generator provided by the present invention; Figure 2 This is a schematic diagram of the structure of a universal nozzle assembly. An underwater multi-morphological controllable bubble curtain generator includes:

[0049] 1. Housing; 3. Air compressor; 4. Air tank; 5. Dryer filter; 6. Variable adjustment module; 7. Multi-path air distribution unit; 2. Multiple ring-shaped air hole groups; 11. Closed-loop control unit; 10. Motion control module; 9. Electric drive device; 12. Multiple A-shaped connecting brackets; and 13. External motion track.

[0050] The air compressor 3 is installed on one side inside the housing 1;

[0051] The air storage tank 4 is connected to one end of the air compressor 3 via a pipe;

[0052] The dryer filter 5 is connected to one side of the gas storage tank 4 via a pipe;

[0053] The variable adjustment module 6 is disposed on one side of the drying filter 5;

[0054] The multi-path gas distribution unit 7 is disposed on one side of the variable adjustment module 6;

[0055] Multiple annular vent groups 2 are respectively connected to one side of the multi-path gas distribution unit 7;

[0056] The closed-loop control unit 11 is installed inside the housing 1;

[0057] The motion control module 10 is connected to one side of the closed-loop control unit 11 via a connecting cable;

[0058] The electric drive device 9 is located below the motion control module 10.

[0059] Multiple A-shaped connecting brackets 12 are symmetrically connected to both sides of the bottom of the housing 1.

[0060] The external motion track 13 is located below the plurality of A-shaped connecting brackets 12.

[0061] Both ends of the housing 1 are provided with sealing end caps 8.

[0062] The air compressor 3, the air tank 4, and the dryer filter 5 are used to provide clean and stable compressed air.

[0063] The porous mechanical structure serves as the basic form for supporting the ring-shaped air holes and forming a bubble curtain. The main body can be cylindrical, a rotating body, or other rigid body structures. The shell 1 is made of corrosion-resistant alloy material and the material consistency is ensured to reduce the effect of seawater corrosion and prevent the rough surface caused by corrosion from affecting the bubble morphology. Sealed end caps 8 are provided at both ends of the axial direction. The interior is hollow and has independent air passages. Multiple ring-shaped air hole groups 2 are arranged at intervals along the outer surface of the rigid body. The air holes in each ring are evenly distributed at equal intervals along the circumference (the number is 20-50, which can be adjusted according to the circumference length of the ring). Different ring-shaped air hole groups are designed with different hole diameters and different hole depths to form a mixed effect of multi-size bubble curtains with axial gradient.

[0064] The multi-channel air supply control equipment is used for precise distribution of airflow through the ring-shaped vents. The control equipment includes an air source assembly, a multi-channel air distribution unit 7, a variable pressure regulating module 6, and a closed-loop control unit 11. The air supply control process is as follows: the air compressor 3, air tank 4, and dryer filter 5 of the air source assembly provide clean and stable compressed air as the overall source for bubble generation; the multi-channel air distribution unit distinguishes between the main air pipe and multiple branch pipes, with one end of each branch pipe connected to the internal air passage of the porous mechanical structure via an air interface; simultaneously, a variable pressure regulating module 6 is connected in series on each branch pipe. The pressure regulating module uses an electromagnetic proportional pressure control valve to independently and precisely adjust the corresponding ring gas supply pressure and flow rate, realizing proportional control of the ventilation volume. Through the PLC controller, flow sensor, pressure sensor and other modules of the closed-loop control unit, the flow and pressure sensors are installed in the bronchus to collect gas path parameters in real time and feed them back to the PLC controller. The PLC controller adjusts the variable pressure regulating module according to preset instructions. At the same time, O-ring seals are set between each ring gas chamber and the rigid body and related devices, and a honeycomb splitter design is adopted to achieve crosstalk-free and precise gas supply control.

[0065] Please refer to the following: Figure 1and Figure 2 It is understood that the bubble optimization structure is used to optimize and control the direction and trajectory of bubble movement during the processes of bubble generation, rigid surface flow, fusion, collapse, and dissipation. The structure mainly consists of a universal nozzle assembly 21, a direction control module, and a flow guide auxiliary unit. The optimization control process mainly involves the gas being generated and ejected from the annular cavity, and then initially oriented by the universal nozzle mounted at the outlet of the gas hole. The nozzle is coaxially connected to the gas hole and rotates within a range of 0-90° relative to the outer surface of the gas hole through a spherical hinge structure to change the direction of bubble ejection. A micro servo motor 22 is installed at the universal nozzle and connected to the nozzle through a connecting rod to drive the nozzle to rotate to the target angle. The servo motor is connected to the PLC controller through a bus to receive angle control commands. The flow guide auxiliary unit includes an arc-shaped guide plate, located on the outside of the annular zone near the gas hole, to assist in guiding the bubbles to flow along a preset trajectory to reduce the disorderly interference of water flow on the bubbles and ensure the uniformity and stability of bubble size, direction, and speed.

[0066] The towing drive unit is used to drive the porous mechanical structure to achieve uniformly variable speed motion in a certain direction to simulate the relative motion scenario of a rigid body and water flow. The structure mainly includes an A-shaped connecting bracket 12, an external motion track 13, an electric drive device 9, and a motion control module 10. The A-shaped connecting bracket 12 is made of aluminum alloy or corrosion-resistant material. Two A-shaped connecting brackets 12 are symmetrically fixed at both ends of the axial direction of the porous mechanical structure. The other end of the bracket is provided with a slider connecting seat connected to the external motion track 13. The track is laid along a preset horizontal or vertical direction and mainly includes two parallel guide rails and a track base. The track is driven by the electric drive device 9, which includes a servo motor, a ball screw transmission mechanism, and a reducer. The motor drives the screw to rotate through the reducer. The screw nut is rigidly connected to the slider, driving the porous mechanical structure to move along the track. The motion control of the track is controlled by a PLC controller connected to a servo motor driver. The motion speed and acceleration can be set and combined with a displacement sensor to achieve closed-loop control of uniformly variable speed motion. The uniform speed motion mode can form a stable bubble curtain, and the variable speed mode can simulate the bubble generation and collapse process under impact load.

[0067] The generating device and its control method described in this invention are characterized by precise control, adjustability, and reconfigurability. Through scaled-down models, they can reproduce complex underwater physical phenomena that are difficult to observe under real marine conditions in limited experimental environments such as pools or lakes. This achieves improvements in research pre-fabrication efficiency, shortens the R&D cycle, and enables comprehensive data acquisition. Furthermore, through adaptive scaling and localized structural design, it can simulate the generation and control of localized bubble clusters in biomimetic machines, providing a refined multi-data source implementation scheme for the optimization of the shape and propulsion mechanism of biomimetic underwater machines. In addition, this invention can be applied to ship and marine engineering simulation, hull drag reduction design, and underwater target detection effects through adaptive design and methods.

[0068] In the research field of cavitation effects and hydrodynamic control on the surface of underwater vehicles, various unmanned underwater vehicles are prone to cavitation during high-speed horizontal or vertical maneuvers. This necessitates obtaining hydrodynamic tests and multi-condition verification experiments under full-scale conditions in real marine environments. However, these tests are costly and risky, and data acquisition for operational conditions is limited. The device and control method of this invention enable multi-condition verification under limited experimental conditions in water tunnels, pools, and lakes through methods such as scaled-down simulation, precise reproduction, and control verification. This provides a quantitative and comprehensive verification scheme for design optimization of underwater equipment in areas such as noise reduction, drag reduction, and cavitation resistance.

[0069] In the research of unsteady hydrodynamic loads and mechanical properties of underwater vehicles, the surface of the vehicle is often covered by bubbles, which can lead to asymmetrical and uneven stress on the surface. This can cause excessive loads and overload fractures. This process is difficult to measure and reproduce under real marine environmental conditions, and the operating conditions are very demanding. The device and control method of this invention can set up a bubble curtain in a specific area on the surface of the vehicle model through multi-channel independent control capabilities, and achieve a controllable and asymmetrical load distribution through intervention.

[0070] In the field of biomimetic fish machine morphology and dynamic simulation verification, biomimetic machines generate propulsion and control forces through local movements of the tail fin, pectoral fin, etc. during underwater movement. This process generates complex local eddies and bubble phenomena, which affect the propulsion efficiency, noise level, maneuverability, and fluid design of the biomimetic machine. The device of this invention can be adaptively scaled down and structurally designed to simulate the phenomenon of local bubble cluster generation in biomimetic machines. By controlling the sequence of local bubble generation, it simulates the flow and bubble phenomena generated at different phases during the actual flapping motion of the machine underwater.

[0071] Compared with related technologies, the underwater multi-morphological controllable bubble curtain generator provided by the present invention has the following beneficial effects:

[0072] This invention provides an underwater multi-morphological controllable bubble curtain generator. Multiple annular air vent groups 2 with differentiated depth-to-diameter ratios can generate bubbles of different sizes, forming diverse rigid bubble mixed-envelope morphologies. A multi-channel independent variable adjustment module 6, in conjunction with a closed-loop control unit 11, performs crosstalk-free airflow ratio adjustment, achieving precise air supply control to meet the bubble density requirements of different areas. The omnidirectional nozzle and guide plate work together to actively regulate the bubble movement direction and trajectory, optimizing the bubble movement trajectory and improving the stability of the bubble curtain. The towing drive unit achieves uniformly variable speed motion, accurately replicating the relative motion under actual working conditions and enhancing the device's engineering practicality.

[0073] Second Embodiment

[0074] Please refer to the following: Figure 3 , Figure 4 , Figure 5 and Figure 6 Based on the first embodiment of this application, which provides an underwater multi-morphological controllable bubble curtain generator, the second embodiment of this application proposes another underwater multi-morphological controllable bubble curtain generator. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0075] Specifically, the difference in the underwater multi-morphological controllable bubble curtain generating device provided in the second embodiment of this application is that it also includes a disassembly assembly 14. The disassembly assembly 14 is disposed on one side of the drying filter 5. The disassembly assembly 14 includes a disassembly shell 141, two mounting blocks 142 and two mounting grooves 143. The two mounting blocks 142 are respectively connected to the two sides of the disassembly shell 141, and the two mounting grooves 143 are respectively opened on one side of the drying filter 5.

[0076] The two mounting blocks 142 and the two mounting slots 143 are T-shaped and are adapted to each other. An installation through slot adapted to the disassembly shell 141 is provided on one side of the dryer filter 5. The two mounting blocks 142 and the two mounting slots 143 facilitate the installation and disassembly of the disassembly plate 141. The arc-shaped fixing plate 152 with sealing gasket 153 is installed at the connection between the dryer filter 5 and the disassembly plate 141.

[0077] A sealing assembly 15 is provided between the dryer filter 5 and the disassembly housing 141. The sealing assembly 15 includes a fixing hoop 151, two arc-shaped fixing plates 152, two sealing gaskets 153, and bolts 154. The fixing hoop 151 is sleeved between the dryer filter 5 and the disassembly housing 141. The two arc-shaped fixing plates 152 are symmetrically installed on the surface of the fixing hoop 151. The two sealing gaskets 153 are respectively bonded to the opposite side of the two arc-shaped fixing plates 152.

[0078] The bolt 154 is located on one side of the fixing hoop 151, and the top of the drying filter 5 is provided with an end cap 16.

[0079] The working principle of the underwater multi-morphology controllable bubble curtain generator provided by this invention is as follows:

[0080] When using the filter dryer 5, to disassemble and replace the internal components, first remove the end cap 16. After removing the end cap 16, remove the bolts 154 on the fixing clamp 151. After removing the bolts 154, pull the fixing clamp 151 to separate the two arc-shaped fixing plates 152 with sealing gaskets 153 from the filter dryer 5 and the arc-shaped disassembly plate 141. After removing the two arc-shaped fixing plates 152 with sealing gaskets 153 and the fixing clamp 151, pull the arc-shaped disassembly plate 141 to separate the mounting blocks 142 on both sides from the two mounting slots 143 opened on the filter dryer 5.

[0081] Compared with related technologies, the underwater multi-morphological controllable bubble curtain generator provided by the present invention has the following beneficial effects:

[0082] The present invention provides an underwater multi-morphological controllable bubble curtain generating device. A disassembly shell 141, two mounting blocks 142 and two mounting grooves 143 are provided on the surface of the dryer filter 5 to work with the sealing assembly 15, so as to facilitate the disassembly and replacement of the filter elements inside the dryer filter 5 after long-term use.

[0083] Third Embodiment

[0084] Please refer to the following: Figure 7 Based on the first embodiment of this application, which provides an underwater multi-morphological controllable bubble curtain generator, the third embodiment of this application proposes another underwater multi-morphological controllable bubble curtain generator. The third embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0085] Specifically, the difference in the underwater multi-morphological controllable bubble curtain generating device provided in the third embodiment of this application is that it also includes a viewing component 17. The viewing component 17 is disposed on the surface of the drying filter 5. The viewing component 17 includes a transparent plate 171, a fixing frame 172, a plurality of rectangular blocks 173 and a plurality of threaded bolts 174. The transparent plate 171 is disposed on the surface of the drying filter 5, the fixing frame 172 is disposed on the surface of the transparent plate 171, the plurality of rectangular blocks 173 are respectively connected to the left and right sides of the top and bottom of the fixing frame 172, and the plurality of threaded bolts 174 are respectively disposed between the plurality of rectangular blocks 173 and the drying filter 5.

[0086] A mounting groove adapted to the transparent plate 171 is provided on the surface of the dryer filter 5. The use of the fixing frame 172 facilitates the fixing of the transparent plate 171. When installing the transparent plate 171, first install the transparent plate 171 inside the mounting groove, then fit the fixing frame 172 with multiple rectangular blocks 173 onto the surface of the transparent plate 171 and the dryer filter 5, and finally use multiple threaded bolts 174 to pass through the multiple rectangular blocks 173 and threadedly connect with the dryer filter 5.

[0087] The working principle of the underwater multi-morphology controllable bubble curtain generator provided by this invention is as follows:

[0088] When in use, the condition of the internal components of the dryer filter 5 can be viewed through the transparent plate 171.

[0089] Compared with related technologies, the underwater multi-morphological controllable bubble curtain generator provided by the present invention has the following beneficial effects:

[0090] The present invention provides an underwater multi-form controllable bubble curtain generating device. A transparent plate 171, a fixing frame 172, multiple rectangular blocks 173 and multiple threaded bolts 174 are provided on the surface of the dryer filter 5 to facilitate the inspection of the use of the filter elements inside the dryer filter 5.

[0091] Please refer to the following: Figure 8 A control method for an underwater multi-morphological controllable bubble curtain generator includes the following steps:

[0092] S1. System Start-up and Air Source Preparation: Start the air compressor 3 inside the housing 1. The air compressor 3 compresses the air and then transports it to the air storage tank 4 through the pipeline for storage. The compressed air output from the air storage tank 4 flows into the drying filter 5 through the pipeline. The drying filter 5 removes moisture and impurities from the air to form clean and stable compressed air, providing a qualified air source for the subsequent generation of the bubble curtain.

[0093] S2. Air path parameter adjustment and distribution: The closed-loop control unit 11 sends control commands to the variable adjustment module 6. The variable adjustment module 6 adjusts the pressure and flow rate of the compressed air according to the preset bubble curtain morphology parameters. The adjusted compressed air enters the multi-path air distribution unit 7. The multi-path air distribution unit 7 distributes the compressed air to multiple annular air hole groups 2 in a differentiated manner according to the instructions of the closed-loop control unit 11.

[0094] S3, Preliminary bubble curtain formation: Compressed air distributed by the multi-path air distribution unit 7 is delivered to the corresponding annular air hole group 2 and ejected through the air holes of different diameters of the annular air hole group to form a preliminary bubble curtain structure containing large, medium and small bubbles.

[0095] S4. Bubble curtain shape and position control: The closed-loop control unit 11 starts the electric drive device 9 through the motion control module 10. The electric drive device 9 drives the shell 1 to move at a uniform speed along the external motion track 13 through the A-shaped connecting bracket 12, adjusting the underwater spatial position of the ring-shaped air hole group 2. At the same time, the closed-loop control unit 11 adjusts the coordination between the bubble ejection direction and the shell movement according to the preset program, further optimizing the distribution shape of the bubble curtain.

[0096] S5. Closed-loop monitoring and dynamic adjustment: The closed-loop control unit 11 receives real-time monitoring data from sensors such as flow rate, pressure, and displacement in the system, and compares the current pressure, flow rate, and position parameters of the bubble curtain with the preset parameters. If there is a deviation, the closed-loop control unit 11 immediately sends adjustment commands to the variable adjustment module 6, the multi-path air distribution unit 7, and the motion control module 10 to dynamically correct the air path parameters and the shell movement state, ensuring that the bubble curtain always maintains the preset multi-shape effect.

[0097] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An underwater multi-morphological controllable bubble curtain generator, characterized in that, include: Housing, air compressor, air tank, dryer filter, variable adjustment module, multi-way air distribution unit, multiple ring-shaped air vent groups, closed-loop control unit, motion control module, electric drive device, multiple A-shaped connecting brackets and external motion track; The air compressor is installed on one side inside the housing; The gas storage tank is connected to one end of the air compressor via a pipe; The drying filter is connected to one side of the gas storage tank via a pipe; The variable adjustment module is located on one side of the drying filter; The multi-path gas distribution unit is located on one side of the variable adjustment module; The plurality of the annular vent groups are respectively connected to one side of the multi-path gas distribution unit; The closed-loop control unit is installed inside the housing; The motion control module is connected to one side of the closed-loop control unit via a connecting cable; The electric drive device is located below the motion control module.

2. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, Multiple A-shaped connecting brackets are symmetrically connected to both sides of the bottom of the housing.

3. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, The external motion track is located below the multiple A-shaped connecting brackets.

4. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, Both ends of the housing are provided with sealing end caps.

5. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, The air compressor, the air tank, and the dryer filter are used to provide clean and stable compressed air.

6. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, A disassembly assembly is provided on one side of the dryer filter. The disassembly assembly includes a disassembly shell, two mounting blocks, and two mounting slots. The two mounting blocks are respectively connected to the two sides of the disassembly shell, and the two mounting slots are respectively opened on one side of the dryer filter.

7. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, A sealing assembly is provided between the dryer filter and the disassembly housing. The sealing assembly includes a fixing hoop, two arc-shaped fixing plates, two sealing gaskets, and bolts. The fixing hoop is sleeved between the dryer filter and the disassembly housing. The two arc-shaped fixing plates are symmetrically installed on the surface of the fixing hoop. The two sealing gaskets are respectively bonded to the opposite side of the two arc-shaped fixing plates.

8. The underwater multi-morphological controllable bubble curtain generator according to claim 7, characterized in that, The bolt is located on one side of the fixing hoop, and the top of the drying filter is provided with an end cap.

9. The underwater multi-morphological controllable bubble curtain generator according to claim 1, characterized in that, The surface of the drying filter is provided with a viewing component, which includes a transparent plate, a fixed frame, multiple rectangular blocks and multiple threaded bolts. The transparent plate is disposed on the surface of the drying filter, the fixed frame is disposed on the surface of the transparent plate, the multiple rectangular blocks are respectively connected to the left and right sides of the top and bottom of the fixed frame, and the multiple threaded bolts are respectively disposed between the multiple rectangular blocks and the drying filter.

10. A control method for an underwater multi-morphological controllable bubble curtain generator, as described in any one of claims 1 to 5, characterized in that, Includes the following steps: S1. System Start-up and Air Source Preparation: Start the air compressor inside the housing. The air compressor compresses the air and delivers it to the air storage tank through the pipeline for storage. The compressed air output from the air storage tank flows into the drying filter through the pipeline. The drying filter removes moisture and impurities from the air to form clean and stable compressed air, providing a qualified air source for the subsequent generation of the bubble curtain. S2. Air path parameter adjustment and distribution: The closed-loop control unit sends control commands to the variable adjustment module. The variable adjustment module adjusts the pressure and flow rate of compressed air according to the preset bubble curtain morphology parameters. The adjusted compressed air enters the multi-path air distribution unit. The multi-path air distribution unit distributes the compressed air to multiple annular orifice groups according to the instructions of the closed-loop control unit. S3. Initial bubble curtain formation: Compressed air distributed by the multi-path air distribution unit is delivered to the corresponding annular air hole group and ejected through the air holes of different diameters in the annular air hole group to form an initial bubble curtain structure containing large, medium and small bubbles. S4. Bubble curtain shape and position control: The closed-loop control unit starts the electric drive device through the motion control module. The electric drive device drives the shell to make uniform speed change movement along the external motion track through the A-shaped connecting bracket, and adjusts the underwater spatial position of the ring-shaped air hole group. At the same time, the closed-loop control unit adjusts the coordination between the bubble ejection direction and the shell movement according to the preset program to further optimize the distribution shape of the bubble curtain. S5. Closed-loop monitoring and dynamic adjustment: The closed-loop control unit receives real-time monitoring data from sensors such as flow rate, pressure, and displacement in the system, and compares the current pressure, flow rate, and position parameters of the bubble curtain with the preset parameters. If there is a deviation, the closed-loop control unit immediately sends adjustment commands to the variable adjustment module, the multi-path air distribution unit, and the motion control module to dynamically correct the air path parameters and the shell movement state, ensuring that the bubble curtain always maintains the preset multi-shape effect.

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