Reelable bubble curtain system

Abstract

The utility model provides a kind of retractable bubble curtain system, including gas supply assembly, bubble assembly, counterweight assembly and adjusting assembly.Gas supply assembly is configured to provide compressed gas;Bubble assembly is communicated with gas supply assembly, is set to the edge of the local water area in the determined local water area in wide water area range, bubble assembly is provided with multiple air injection parts, counterweight assembly is connected with bubble assembly, and it is applicable to make bubble assembly exert counterweight;Adjusting assembly is configured to adjust the depth where bubble assembly is located;Wherein, compressed gas is injected into the local water area in the form of bubble by multiple air injection parts, forms the bubble curtain extended to the liquid surface edge of the local water area by bubble assembly, to prevent peripheral floating object from entering the local water area.

Description

Technical Field

[0001] At least one embodiment of this utility model relates to the field of water environment management technology, and more specifically, to a retractable bubble curtain system for the treatment of floating debris intrusion in open water intake channels of power plants and other facilities. Background Technology

[0002] Power plants, due to their condenser cooling requirements, are typically located near coastlines or rivers to obtain sufficient cooling water. However, floating organisms, garbage, and other foreign objects in these waters can easily clog the water intake, sometimes even forcing generator units to shut down, directly impacting the stability of the power grid and power supply security. To address this issue, bubble curtain technology is widely used for water intake protection. This technology involves arranging bubble tubes underwater to evenly release bubbles, creating an upward water flow that pushes floating debris away from the intake as it approaches the surface, effectively blocking it.

[0003] Traditional bubble curtain systems typically use anchor blocks to permanently fix the bubble tubes to the seabed. However, due to factors such as underwater microbial adhesion and sediment accumulation, the air jets in the bubble tubes are prone to clogging, requiring periodic replacement. Furthermore, because the bubble tubes are relatively large, replacement operations often require the cooperation of a lifting vessel and divers, resulting in long construction periods and high maintenance costs. In addition, traditional fixed bubble curtains cannot be quickly deployed to predetermined locations according to actual needs, and the depth of the bubble curtain cannot be adjusted after deployment, making it difficult to meet the protective needs of different seasons or sudden pollution events.

[0004] To address the aforementioned issues, there is an urgent need for a retractable bubble curtain system that allows for adjustment of the bubble tube depth, thereby reducing the technical difficulties and costs associated with bubble tube maintenance and replacement. Utility Model Content

[0005] In view of this, in order to solve at least one of the above-mentioned and other technical problems in the prior art, the present invention provides a retractable bubble curtain system that can adjust the height of the bubble tube to facilitate the deployment and maintenance of the bubble tube, and can change the depth of the formed bubble curtain.

[0006] This invention provides a retractable bubble curtain system, including an air supply assembly, a bubble assembly, a counterweight assembly, and an adjustment assembly. The air supply assembly is configured to supply compressed gas; the bubble assembly is connected to the air supply assembly and positioned at the edge of a defined local water area within a wide water area, and the bubble assembly is provided with multiple jet nozzles; the counterweight assembly is connected to the bubble assembly and is adapted to apply counterweight to the bubble assembly; the adjustment assembly is configured to adjust the depth of the bubble assembly; wherein the compressed gas is injected into the local water area in the form of bubbles through the multiple jet nozzles, forming a bubble curtain extending from the bubble assembly to the liquid surface at the edge of the local water area, thereby preventing external floating objects from entering the local water area.

[0007] According to an embodiment of the present invention, the counterweight assembly includes at least one counterweight unit disposed along the edge of the local water area. The counterweight unit is connected to the bubble assembly via a first connector and is used to apply a vertically downward counterweight force to the bubble assembly.

[0008] According to an embodiment of the present invention, at least one side of the counterweight unit is connected to a first fixed anchor via a second connector to resist the impact of water flow on the counterweight unit.

[0009] According to an embodiment of the present invention, the adjustment component includes a plurality of first drive units disposed above the bubble component. The plurality of first drive units are respectively connected to the counterweight component or the bubble component via lifting cables and are configured to adjust the depth of the bubble component by raising and lowering the lifting cables.

[0010] According to an embodiment of the present invention, a plurality of the aforementioned first driving units are sequentially fixed to the surface of or above the surface of the aforementioned local water area via transverse cables or foundation piles.

[0011] According to an embodiment of the present invention, a floating component is further included, which is disposed at the edge of the liquid surface of the aforementioned local water area, and a plurality of the aforementioned first driving units are disposed on the aforementioned floating component.

[0012] According to an embodiment of the present invention, the above-mentioned floating component is provided with a traction part, which is suitable for detachable connection with the towing cable of a tugboat, so as to adjust the position of the bubble component by moving the floating component.

[0013] According to an embodiment of the present invention, the floating component is provided with a propulsion unit and is configured to drive the floating component to move.

[0014] According to an embodiment of the present invention, the adjustment component includes: at least one airbag unit disposed on the bubble assembly; and an inflation / deflation unit connected to the airbag unit via an air tube, configured to adjust the inflation amount of the airbag unit to drive the bubble assembly to float or sink.

[0015] According to an embodiment of the present invention, the adjustment component includes a plurality of second drive units, which are respectively disposed on a plurality of ropes extending from the bottom of the water to the surface of the liquid, and are configured to drive the bubble component to move along the plurality of ropes; wherein, the ends of the plurality of ropes near the surface of the liquid are fixed at intervals.

[0016] According to an embodiment of the present invention, a control unit is also included, which is communicatively connected to the aforementioned adjustment component.

[0017] According to the embodiments of this utility model, the retractable bubble curtain system provides that the buoyancy of the bubble assembly is greater than its gravity. The traction force applied by the counterweight assembly sinks it to the bottom or suspends it in the water. The bubble assembly is driven to move vertically by the adjustment assembly, which realizes the flexible adjustment of the height of the bubble curtain. It can adapt to the floating object isolation requirements under different water depth conditions, and the bubble distribution effect can be optimized by adjusting the position of the bubble assembly. At the same time, it significantly reduces the maintenance difficulty. When maintenance or replacement is required, it is only necessary to adjust the bubble assembly to rise to the liquid surface. There is no need for underwater operations or large equipment assistance, which greatly improves maintenance efficiency and reduces the cost of use. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of a retractable bubble curtain system according to an embodiment of the present invention is shown.

[0020] Figure 2 A schematic diagram illustrates the structure of a system employing multiple bubble tubes according to an embodiment of the present invention;

[0021] Figure 3 This schematic diagram illustrates the structure of the retractable bubble curtain system according to an embodiment of the present invention in the direction of the bubble assembly extension.

[0022] Figure 4 A perspective view of a retractable bubble curtain system with a tugboat according to an embodiment of the present invention is shown schematically.

[0023] Figure 5 A perspective view of a buoy according to an embodiment of the present invention is shown schematically;

[0024] Figure 6 for Figure 5 A cross-sectional view of the buoy shown;

[0025] Figure 7 A schematic diagram of a system employing a floating platform according to the present invention is shown.

[0026] Figure 8 A schematic diagram of a system employing a floating bridge according to an embodiment of the present invention is shown.

[0027] Figure 9 This schematic diagram illustrates the structure of a system according to an embodiment of the present invention, in which a first drive unit is disposed above the water surface;

[0028] Figure 10 This schematically illustrates a structural diagram of a retractable bubble curtain system according to another embodiment of the present invention in the direction of bubble assembly extension;

[0029] Figure 11 A schematic diagram of a retractable bubble curtain system according to another embodiment of the present invention is shown.

[0030] Figure 12 A schematic diagram of a system employing an airbag unit according to an embodiment of the present invention is shown.

[0031] Figure 13 A schematic diagram of a system employing a second drive unit according to an embodiment of the present invention is shown.

[0032] Figure 14 A schematic diagram of a system employing a third drive unit according to an embodiment of the present invention is shown.

[0033] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0034] 1. Gas supply components;

[0035] 2. Bubble assembly;

[0036] 3. Adjustment components;

[0037] 31. First drive unit;

[0038] 311. Raising cable;

[0039] 312. Commutator;

[0040] 32. Airbag unit;

[0041] 33. Second drive unit;

[0042] 331. Ropes and cables;

[0043] 34. Third drive unit;

[0044] 341. Driving wheel;

[0045] 342. Driven wheel;

[0046] 343. Conveyor belt;

[0047] 4. Counterweight components;

[0048] 41. Counterweight unit;

[0049] 42. First connecting component;

[0050] 43. First fixed anchor;

[0051] 44. Second connecting component;

[0052] 5. Floating components;

[0053] 51. Floating platform;

[0054] 511. Second fixed anchor;

[0055] 512. Sub-floor;

[0056] 513. Connecting bracket;

[0057] 514. Third connector;

[0058] 52. Floating bridge;

[0059] 53. Buoy;

[0060] 54. Propulsion Unit;

[0061] 6. Horizontal rope;

[0062] 7. Foundation piles;

[0063] 8. Tugboat. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0065] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0066] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0067] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0068] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.

[0069] Traditional bubble curtain systems typically employ an underwater fixed installation method. This involves using a crane vessel to lower heavy anchor blocks to the seabed, where divers then secure the bubble tubes to the anchor blocks underwater using specialized locking devices. This installation method has significant drawbacks: First, system maintenance or replacement requires underwater disassembly by divers each time, resulting in high maintenance costs (up to tens of thousands of yuan per operation) and significant safety risks during diving operations in harsh hydrological conditions (such as strong currents and low visibility). Second, in silty waters, the anchor blocks gradually sink due to bottom sedimentation, burying the bubble tubes and causing them to become completely ineffective within 2-3 years due to blocked air jets, necessitating a complete system reinstallation. This design flaw leads to a double whammy of increased maintenance costs and continuously decreasing reliability over long-term use. Furthermore, when large amounts of floating debris enter the water, traditional deployment methods are time-consuming and often fail to respond quickly, easily missing the optimal time for bubble curtain interception. This design flaw leads to multiple challenges for traditional solutions in the long run, including increased maintenance costs, continuously decreasing reliability, and insufficient emergency response capabilities.

[0070] Figure 1 A schematic diagram of a retractable bubble curtain system according to an embodiment of the present invention is shown. Figure 2 The diagram schematically illustrates the structure of a system employing multiple bubble tubes according to an embodiment of the present invention.

[0071] An embodiment of this utility model provides a retractable bubble curtain system, such as... Figure 1 and Figure 2 As shown, the system includes an air supply assembly 1, a bubble assembly 2, a counterweight assembly 4, and an adjustment assembly 3. The air supply assembly 1 is configured to supply compressed gas; the bubble assembly 2 is connected to the air supply assembly 1 and is positioned at the edge of a defined local water area within a wide water area, and the bubble assembly 2 is provided with multiple jet nozzles; the counterweight assembly 4 is connected to the bubble assembly 2 and is adapted to apply counterweight to the bubble assembly 2; the adjustment assembly 3 is configured to adjust the suspension depth of the bubble assembly 2; wherein, the compressed gas is injected into the local water area in the form of bubbles through the multiple jet nozzles, forming a bubble curtain extending from the bubble assembly 2 to the edge of the liquid surface of the local water area to prevent external floating objects from entering the local water area.

[0072] According to the above configuration, the bubble assembly 2 is driven vertically by the counterweight assembly 4 and the adjusting assembly 3 to reach the required depth to sink to the bottom or suspend in the water, thus improving the system's practicality and economy. The bubble assembly 2 can be quickly raised to the surface for inspection or replacement, completely avoiding traditional underwater operations, improving maintenance efficiency and significantly reducing maintenance costs. Functionally, the height of the bubble assembly 2 can be precisely adjusted, adapting to different water levels and optimizing the distribution of the bubble curtain to improve the interception efficiency of various floating objects. The suspended state of the bubble assembly 2 also avoids the problem of the counterweight assembly 4 gradually sinking due to bottom sedimentation in silty water environments, preventing the bubble assembly 2 from being gradually buried by silt.

[0073] According to an embodiment of the present invention, the air supply assembly 1 includes at least one air compressor, which is disposed on the water surface of a water bank or a wide body of water. The air compressor is connected to the bubble assembly 2 through an air supply pipe and supplies compressed air to the bubble assembly 2.

[0074] In one illustrative embodiment, the bubble assembly 2 includes any form such as a bubble tube, a bubble disc, or a bubble plate, and the air jetting part includes, but is not limited to, air jet holes or nozzles. This invention employs a combination of bubble tubes or multiple bubble tubes combined with air jet holes (e.g.,...). Figure 1 and Figure 2 ).

[0075] In one illustrative embodiment, the bubble assembly 2 is configured to remain suspended in the local water area by the counterweight assembly 4 and / or the regulating assembly 3.

[0076] According to an embodiment of this invention, the thickness of the outer wall and the internal cross-sectional dimensions of the bubble assembly 2 are configured such that the overall density of the bubble assembly 2 is less than the density of the surrounding water. This structural design ensures that the bubble assembly 2 always satisfies the condition that buoyancy is greater than gravity in a wide area of ​​water, thereby maintaining a stable upward trend.

[0077] In another alternative implementation, the bubble assembly 2 employs a structural design with circumferentially wrapped lightweight material, which also enables the bubble assembly 2 to float. This alternative further optimizes the buoyancy characteristics of the assembly through material selection.

[0078] According to an embodiment of the present invention, the bubble assembly 2 includes at least one bubble tube extending along the edge of a local water area, with a plurality of jet holes evenly spaced on the bubble tube.

[0079] Figure 3 The diagram schematically illustrates the structure of the retractable bubble curtain system according to an embodiment of the present invention in the direction of the bubble assembly extension.

[0080] In one illustrative embodiment, such as Figure 3 As shown, the counterweight assembly 4 includes at least one counterweight unit 41, which is arranged along the edge of the local water area. The counterweight unit 41 is connected to the bubble assembly 2 through the first connector 42 and is used to apply a vertically downward counterweight force to the bubble assembly 2.

[0081] In detail, the counterweight unit 41 includes counterweight anchor blocks, which are spaced along the edge of the local water area. The weight of the counterweight anchor blocks is calculated and is used to pull the bubble assembly 2 through the first connector 42 to provide a traction force to counteract the buoyancy of the bubble assembly 2, thereby enabling the bubble assembly 2 to be stably suspended at a predetermined depth.

[0082] In a preferred embodiment, the counterweight anchors are made of concrete or cast iron to ensure their stability on the seabed. Furthermore, multiple counterweight anchors are spaced apart along the extension direction of the bubble assembly 2 to provide a uniformly distributed traction force, preventing the bubble assembly 2 from tilting or shifting due to uneven local stress.

[0083] In addition, the bottom of the counterweight anchor block can be equipped with an anti-slip structure (such as raised texture or anchor claws) to enhance its grip on the seabed and prevent displacement due to water flow impact or soft seabed.

[0084] According to an embodiment of the present invention, the first connector 42 is made of a high-strength corrosion-resistant material (such as a stainless steel cable or a steel wire rope covered with polyethylene) to withstand long-term underwater erosion.

[0085] In an alternative embodiment, the first connector 42 includes, but is not limited to, clamps, etc., and is suitable for fixing the bubble assembly 2 to the counterweight unit 41.

[0086] In an alternative embodiment, the counterweight unit 41 includes a counterweight bar extending along the extension direction of the bubble assembly 2, such as a single counterweight cable or a strip-shaped high-density filler structure (such as a metal counterweight or a concrete core): the internal high-density material enhances buoyancy resistance, ensuring the stability of the bubble assembly 2 in water and preventing drift.

[0087] In some embodiments, the counterweight component 4 and the bubble component 2 are integrally formed, such as by increasing the thickness of the outer wall of the bubble component 2 or adding a high-density material to the outer wall of the bubble component 2, so that the overall weight of the bubble component 2 is greater than the buoyancy, so that it sinks naturally in the water.

[0088] In one illustrative embodiment, such as Figures 1 to 3 As shown, the adjustment component 3 includes multiple first drive units 31, which are disposed above the bubble component 2. The multiple first drive units 31 are respectively connected to the counterweight component 4 or the bubble component 2 via lifting cables 311, and are configured to adjust the depth of the bubble component 2 by raising and lowering the lifting cables 311.

[0089] According to the above configuration, the adjustment component 3, through the coordinated action of multiple first drive units 31 arranged above and the lifting cable 311, achieves precise and adjustable control over the water depth (horizontal height) of the bubble component 2. By adjusting the length of the lifting cable 311 (such as extending or retracting or balancing tension), the suspension position of the bubble component 2 can be flexibly changed to adapt to different working conditions. At the same time, the structure is simple and the response is rapid, avoiding the reliability problems caused by complex mechanical transmission.

[0090] According to an embodiment of the present invention, the lifting cable 311 is made of high-strength corrosion-resistant material (such as stainless steel cable or steel wire rope covered with polyethylene) to withstand long-term underwater erosion.

[0091] In one illustrative embodiment, such as Figures 1 to 3 As shown, it also includes a floating component 5, which is disposed at the edge of the liquid surface of the local water area, and a plurality of first driving units 31 are disposed on the floating component 5.

[0092] Figure 4 A perspective view of a retractable bubble curtain system with a tugboat, according to an embodiment of the present invention, is shown schematically.

[0093] In one illustrative embodiment, such as Figure 4 As shown, the floating assembly 5 is provided with a traction unit, which is suitable for detachable connection with the towing cable of the tugboat 8, so as to adjust the position of the bubble assembly 2 by moving the floating assembly 5 through the tugboat 8.

[0094] Specifically, after the tugboat 8 tows the floating component 5 to the new task location, it releases the bubble component 2 to a specified depth via the first drive unit 31, thus achieving deployment at the designated location. After completing the task, the bubble component 2 is retrieved via the first drive unit 31, and the tugboat 8 tows the floating component 5 away from the task location.

[0095] Figure 5 A perspective view of a buoy according to an embodiment of the present invention is shown schematically; Figure 6 for Figure 5 A cross-sectional view of the buoy of the retractable bubble curtain system shown.

[0096] In one illustrative embodiment, such as Figure 4 and 5 As shown, the floating assembly 5 includes multiple spaced-apart buoys 53 distributed along the edge of a local water area, with the first drive unit 31 installed inside the buoys 53. This integrated configuration provides stable support for the first drive unit 31 through the natural buoyancy of the buoys 53, while optimizing the compactness of the system structure, enabling the bubble assembly 2 to form a continuous and uniform barrier on the water surface; the built-in installation method also protects the first drive unit 31 from water erosion and mechanical damage, significantly improving the system's environmental adaptability and ease of maintenance.

[0097] In one illustrative embodiment, the floating component 5 is provided with a propulsion unit 54, which is configured to drive the floating component 5 to move, thereby enabling active position adjustment and stable maintenance of the system.

[0098] Detailed, such as Figure 5 As shown, at least one propulsion unit 54 is provided on at least one side of the buoy 53 to actively move the position of the buoy 53.

[0099] According to embodiments of this disclosure, the propulsion unit 54 employs an omnidirectional propeller design, providing vector thrust via a waterproof motor, enabling it to drive the buoy 53 to move in multiple directions within the horizontal plane according to control commands. The propulsion unit 54 works in conjunction with the positioning system, receiving position feedback signals in real time. When it detects that the buoy 53 has shifted due to water flow or waves, it automatically generates reverse thrust to compensate for the displacement, ensuring that the floating assembly 5 maintains its preset spatial distribution shape. This active drive mechanism not only significantly improves the positional stability of the bubble curtain system under complex water conditions but also enables autonomous cruising and precise positioning without the need for external vessel assistance, greatly enhancing the system's applicability and deployment flexibility.

[0100] Figure 7 The schematic diagram shows the structure of a system employing a floating platform according to the present invention.

[0101] In one illustrative embodiment, such as Figures 1 to 3 and Figure 7As shown, the floating assembly 5 includes multiple floating platforms 51, which are spaced apart along the edge of the liquid surface in the local water area.

[0102] Specifically, multiple independent floating platforms 51 are arranged at intervals above the counterweight unit 41 along the edge of the liquid surface of the local water area, with appropriate spacing between each floating platform 51 to facilitate water flow and reduce mutual interference.

[0103] In one illustrative embodiment, such as Figure 7 As shown, multiple floating platforms 51 are respectively connected to second fixed anchors 511 and fixed to the bottom of the water by at least one third connector 514, so as to float at a preset position on the edge of the liquid surface of the local water area.

[0104] Based on the above configuration, the spatial positioning stability of the bubble assembly 2 can be effectively maintained. Through the combination of the buoyancy of the floating platform 51 and the constraint of the second fixed anchor 511, the system can maintain stable position control, significantly improving the bubble curtain's resistance to external water flow interference. This combined fixing scheme of the floating platform 51 and the anchor not only achieves precise positioning of the bubble assembly 2 but also avoids local stress concentration through a distributed force-bearing structure, extending the system's service life.

[0105] According to embodiments of the present invention, such as Figure 7 As shown, each of the multiple floating platforms 51 is equipped with a propulsion unit 54, which is configured to drive the floating platform 51 to move to a preset position and maintain a stable position after reaching the preset position.

[0106] Specifically, the propulsion unit 54 includes a turbine propulsion unit, which drives the floating platform 51 to quickly reach the designated coordinate position through the control system and can automatically maintain positional stability in complex hydrological environments. The dynamic compensation function of the propulsion unit 54 can effectively counteract external interference such as water flow and waves, ensuring that the bubble assembly 2 always remains in the preset working position, thereby ensuring the continuity and stability of the bubble curtain barrier.

[0107] In one illustrative embodiment, multiple floating platforms 51 are each equipped with a positioning unit for real-time monitoring of their positions. The positioning unit includes one or more combinations of Global Positioning System (GPS), Global Navigation Satellite System (GNSS), or Real-Time Dynamic Differential Positioning System (RTDS). This positioning unit continuously acquires the latitude and longitude coordinates of the floating platform 51 through a high-precision satellite signal receiver, and, in conjunction with an inertial measurement unit, compensates for positioning data in signal blind spots, achieving centimeter-level position monitoring accuracy. This multi-mode fusion positioning scheme can maintain continuous and stable position feedback in complex hydrological environments such as nearshore areas and harbors, providing reliable technical support for the precise positioning of the bubble curtain system.

[0108] In one illustrative embodiment, multiple floating platforms 51 are each equipped with an imaging unit for acquiring real-time image data of the underwater environment. The imaging unit includes at least one of a multi-beam sonar imaging system, a side-scan sonar device, and an optical camera. The multi-beam sonar imaging system operates at a frequency of 200-400kHz, enabling three-dimensional terrain mapping within a 120° wide-angle range; the side-scan sonar device employs a dual-frequency design (100kHz / 500kHz) to simultaneously meet the requirements of wide-range scanning and high-resolution imaging; the optical camera device is equipped with an underwater supplemental light and a fume hood, enabling the acquisition of clear video images when visibility permits. Through data fusion processing, these imaging devices can comprehensively monitor the underwater environment surrounding the bubble curtain, providing real-time visualization support for system operation.

[0109] According to an embodiment of the present invention, multiple counterweight units 41 and bubble assembly 2 are sequentially released into the water bottom via a movable floating platform 51 and a lifting cable 311, and are also retrieved to the water surface via the lifting cable 311.

[0110] In one illustrative embodiment, such as Figure 7 As shown, an auxiliary sub-float 512 is provided on one side of the floating platform 51 via a connecting frame 513, and the first drive unit 31 is provided on the connecting frame 513, which can provide stable support when launching and deploying the counterweight unit 41 and the bubble assembly 2.

[0111] In one illustrative embodiment, such as Figure 7 As shown, at least one side of the counterweight unit 41 is connected to a first fixed anchor 43 via a second connector 44 to resist the impact of water flow on the counterweight unit 41.

[0112] Specifically, to enhance the system's stability in a flowing environment, at least one side (preferably the side facing the water flow) of the counterweight unit 41 is connected to a first fixed anchor 43 via a second connector 44. The first fixed anchor 43 includes, but is not limited to, mushroom anchors, blues anchors, Danvers anchors, or plate anchor structures, ensuring reliable grip on sandy or silty seabeds. When impacted by water flow, the second connector 44 generates a horizontal component force, effectively counteracting the lateral effects of the water flow on the counterweight unit 41.

[0113] Furthermore, in applications in turbulent regions, multiple sets of second connectors 44 can be symmetrically arranged on both sides of the counterweight unit 41 to form a multi-directional anchoring network.

[0114] Figure 8 The diagram schematically illustrates the structure of a system employing a floating bridge according to an embodiment of the present invention.

[0115] In one illustrative embodiment, such as Figure 8As shown, the floating assembly 5 includes a pontoon 52, which is configured to extend along the edge of the liquid surface of a local water area, and the surface of the pontoon 52 is provided with an inspection channel.

[0116] In detail, the design adopts an integral floating bridge 52 that spans the waterway. The two sides of the floating bridge 52 are fixed to the tugboat or the shore by anchors, and the maintenance channel set on the upper part provides a safe and convenient maintenance platform for operators.

[0117] In one illustrative embodiment, such as Figures 1 to 2 As shown, multiple floating platforms 51 are fixed by cross cables 6 at both ends to the waterfront to limit the horizontal displacement of the multiple floating platforms 51.

[0118] According to the above configuration, the horizontal displacement of the floating platform 51 is effectively limited by the constraint of the horizontal cable 6, ensuring that the bubble assembly 2 maintains a stable working position under the impact of water flow. At the same time, the distributed floating platform 51 and the horizontal cable 6 form a flexible connection system, which can adapt to water level fluctuations and reduce structural load. In addition, while ensuring system stability, it saves more material costs compared with the floating bridge 52 scheme.

[0119] Figure 9 This schematic diagram illustrates the structure of a system according to an embodiment of the present invention, in which a first drive unit 31 is disposed above the water surface; Figure 10 The diagram schematically illustrates the structure of a retractable bubble curtain system according to another embodiment of the present invention in the extension direction of the bubble assembly 2.

[0120] In one illustrative embodiment, such as Figure 9 and Figure 10 As shown, multiple first drive units 31 are sequentially fixed above the liquid surface of the local water area via cross cables 6 or foundation piles 7.

[0121] Based on the above-described setup, the method of erecting the float above the surface of a localized waterway avoids waterway traffic and does not impede the passage of vessels in the canal. Furthermore, it cleverly solves the adjustment problem caused by the rise and fall of traditional floats with water levels. Because the first drive unit 31 is fixed at a constant height above the water surface, the bubble assembly 2 maintains its preset working depth through a rigid connection regardless of tidal changes, completely eliminating the need for frequent rope length adjustments and significantly improving the system's reliability and ease of use.

[0122] Figure 11 The diagram schematically illustrates the structure of a retractable bubble curtain system according to another embodiment of the present invention.

[0123] In one illustrative embodiment, such as Figure 11As shown, the first drive unit 31 is located on the floating bridge 52 and is connected to the counterweight unit 41 via the lifting cable 311 and the reversing component 312 located above the counterweight unit 41. It is suitable for adjusting the length of the lifting cable 311 and driving the release and retraction of the bubble assembly 2.

[0124] According to an embodiment of this utility model, the first drive unit 31 can also be centrally arranged on the shore to cooperate with multiple reversing components 312 to achieve synchronous linkage control of all counterweight units 41, which greatly improves the overall adjustment efficiency of the system.

[0125] According to an embodiment of the present invention, the first drive unit 31 includes a winch, such as... Figures 1 to 4 As shown, multiple winches are respectively installed on the floating platform 51 or spaced apart on the floating bridge 52.

[0126] According to an embodiment of this application, a winch is installed on the water's edge. The winch is connected to the bubble assembly 2 by winding a lifting cable 311, and the position of the bubble assembly 2 is adjusted by manually or electrically raising and lowering the lifting cable 311.

[0127] According to an embodiment of the present invention, the reversing component 312 includes a fixed pulley, which can be disposed on the floating component 5 or directly connected to the shore via a cross cable 6.

[0128] In one specific implementation, such as Figure 11 As shown, the system uses a 3-meter-wide, 20-meter-long floating bridge 52 as a support platform, spanning both banks of the canal and secured by pre-embedded foundation piles 7. One side of the floating bridge 52 is equipped with a safety guardrail, while the other side features multiple electric winches with electromagnetic braking functions installed at 6-meter intervals. The winches are driven by a 24V DC safety voltage, providing a rated pulling force of 300 pounds, and are remotely controlled via RS485 communication protocol. The lifting system uses 8mm diameter galvanized steel wire rope as the load-bearing lifting cable 311, reliably connected to the winches via guide brackets on the edge of the floating bridge 52. The bubble assembly 2 adopts a three-layer modular structure, securely assembling the upper buoyancy airbag unit 32, the middle bubble assembly 2, and the lower counterweight rubber tube using 3-hole U-shaped pipe clamps. The matching 20KW variable frequency air compressor system can simultaneously provide working airflow for the bubble assembly 2 and deliver the required gas to the airbag unit 32. When the airbag is inflated to the working pressure, the overall system density is lower than that of water, causing it to automatically float. During deflation, the density is higher than that of water, causing the system to automatically sink and the cable to be released synchronously by the winch. Once the designated depth is reached, the system immediately self-locks via an electromagnetic brake, ensuring stable stopping. This design achieves intelligent lifting control of the airbag assembly 2 system, combining operational safety and reliability.

[0129] Figure 12 The diagram schematically illustrates a system employing an airbag unit according to an embodiment of the present invention.

[0130] In one illustrative embodiment, such as Figure 12 As shown, the adjustment component 3 includes: at least one airbag unit 32 disposed on the bubble assembly 2; and an inflation / deflation unit connected to the airbag unit 32 via an air tube, configured to adjust the inflation amount of the airbag unit 32 to cause the bubble assembly 2 to float or sink.

[0131] In detail, the airbag unit 32 has a first state of being uninflated and a second state of being inflated. In the first state, it causes the bubble assembly 2 to sink underwater, and in the second state, it causes the bubble assembly 2 to float upward.

[0132] Based on the above configuration, an integrated design of the airbag unit 32 and the bubble assembly 2 is adopted. The system's automatic lifting function is achieved through the physical characteristics of the airbag unit 32's inflation and deflation. When the airbag unit 32 is inflated, it generates sufficient buoyancy to lift the bubble assembly 2 to the surface for easy maintenance and repair; after deflation, it automatically sinks back underwater due to counterweight. This purely mechanical adjustment scheme completely avoids the complex structure of an electric winch, significantly reduces the number of electrical components, and significantly improves system reliability and service life. Specifically, the airbag unit 32 can work independently or in conjunction with the first drive unit 31, etc., ensuring system adjustment flexibility while reducing motor load.

[0133] Figure 13 The schematic diagram illustrates the structure of a system employing a second drive unit 33 according to an embodiment of the present invention.

[0134] In one illustrative embodiment, such as Figure 13 As shown, the adjustment component 3 includes multiple second drive units 33, which are respectively disposed on multiple ropes 331 extending from the bottom of the water to the surface of the liquid, and are configured to drive the bubble assembly 2 to move along the multiple ropes 331; wherein, the ends of the multiple ropes 331 near the liquid surface are fixed at intervals.

[0135] In some embodiments, such as Figure 13 As shown, one end of multiple ropes 331 located on or above the liquid surface is fixed in sequence by a cross cable 6.

[0136] In detail, the second drive unit 33 includes an underwater climber, which is reliably connected to the cable 331 via a clamping mechanism. A motor drives a roller clamped to the cable 331 to move up and down along the cable 331, thereby precisely controlling the position of the bubble assembly 2 in the water. The underwater climber features a waterproof and sealed design and is equipped with an internal pressure balancing system to adapt to different water depths.

[0137] Based on the above configuration, the modular structure of the underwater climber is easy to install and maintain, and is not affected by surface waves, making it particularly suitable for long-term stable operation in deep water or turbulent water environments.

[0138] In one illustrative embodiment, one end of a plurality of ropes 331 located on the liquid surface is respectively fixed to a float assembly or a foundation pile 7.

[0139] In some embodiments, the second drive unit 33 may also be used in conjunction with the first drive unit 31. The first drive unit 31 releases the counterweight assembly 4 to the bottom of the water and then remains stationary. The second drive unit 33 moves up and down along the rope 331, carrying the bubble assembly 2.

[0140] Figure 14 The schematic diagram illustrates the structure of a system employing a third drive unit 34 according to an embodiment of the present invention.

[0141] In one illustrative embodiment, such as Figure 14 As shown, the adjustment assembly 3 includes a third drive unit 34 as a lifting mechanism, and a transmission system consisting of a drive wheel 341, a driven wheel 342, and a closed-loop conveyor belt 343. Multiple third drive units 34 are respectively installed between the floating assembly 5 and the counterweight unit 41, wherein the counterweight unit 41 is pre-fixed to the bottom of the water and does not participate in the lifting motion. The bubble assembly 2 is connected to the conveyor belt 343 via a special clamp, forming a circular lifting loop. The system can be operated electrically or manually, and the vertical position of the bubble assembly 2 in the water can be precisely adjusted by controlling the direction and speed of the drive wheel 341.

[0142] In one illustrative embodiment, a control unit is also included, which establishes a real-time connection with the adjustment component 3 via wired or wireless communication to achieve intelligent control of the system. For example, it can control the raising and lowering of the electric winch, control the climbing height of the underwater climber, and control the inflation status of the airbag unit 32.

[0143] According to an embodiment of this utility model, the adjustable bubble curtain system uses a lithium iron phosphate battery (48V / 10Ah) as the power supply unit, with a total energy of 480 Wh. It can support the adjustment component 3 to complete 20 operations of rising 20 meters each time (single power consumption of 13.3Wh), and retains 50% of the redundant power to ensure the reliability of continuous operation.

[0144] Furthermore, the communication section adopts a long-range radio (LoRa) wireless module, which has an effective communication distance of up to 1 kilometer in open environments. Combined with a handheld wireless controller with a display screen, it enables remote status monitoring and operation of the system.

[0145] According to an embodiment of this utility model, after the system starts up, it sequentially checks battery power supply, pairs the controller, and calibrates the altitude sensor, then enters standby mode. The user sends commands via a handheld controller: pressing the ascend button causes the motor to rotate forward, the winch to reel in the rope, and the device to ascend; at this time, altitude data is detected and updated in real time by an external sonar. Pressing the descend button causes the motor to reverse, the winch to release the rope, and the device to descend. Releasing the button immediately cuts off power to the motor and automatically locks the brake, maintaining the current position. In case of emergency, pressing the emergency stop button will cut off power to the entire system and trigger emergency braking.

[0146] Furthermore, to accurately identify the deployment and retraction position of the bubble assembly 2, the adjustable bubble curtain system integrates a high-precision rotary encoder into the winch of the first drive unit 31. This encoder detects the number of winch rotations in real time and, combined with software algorithms, calculates the deployment and retraction length of the lifting cable, thereby determining the precise height of the bubble assembly 2. In addition, the system has a position memory function, which can store multiple commonly used working heights, enabling one-button automatic lifting and positioning. Height data is transmitted in real time to the handheld controller via LoRa wireless communication and clearly displayed on the screen, forming a closed-loop management system of "detection-control-feedback," effectively improving the accuracy and reliability of operation.

[0147] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.

Claims

1. A retractable bubble curtain system, characterized in that, include: The gas supply assembly is configured to supply compressed gas; A bubble assembly, connected to the air supply assembly, is positioned at the edge of a defined local water area within a wide water area, and the bubble assembly is provided with multiple jet nozzles; A counterweight assembly, connected to the bubble assembly, is adapted to apply counterweight to the bubble assembly; as well as An adjustment component is configured to adjust the depth of the bubble assembly; The compressed gas is injected into the local water area in the form of bubbles through multiple jet nozzles, forming a bubble curtain that extends from the bubble assembly to the edge of the local water area to prevent external floating objects from entering the local water area.

2. The retractable bubble curtain system according to claim 1, characterized in that, The counterweight assembly includes at least one counterweight unit disposed along the edge of the local water area. The counterweight unit is connected to the bubble assembly via a first connector and is used to apply a vertically downward counterweight force to the bubble assembly.

3. The retractable bubble curtain system according to claim 2, characterized in that, At least one side of the counterweight unit is connected to a first fixed anchor via a second connector to resist the impact of water flow on the counterweight unit.

4. The retractable bubble curtain system according to claim 1, characterized in that, The adjustment component includes multiple first drive units disposed above the bubble component. The multiple first drive units are respectively connected to the counterweight component or the bubble component via lifting cables and are configured to adjust the depth of the bubble component by raising and lowering the lifting cables.

5. The retractable bubble curtain system according to claim 4, characterized in that, Multiple first drive units are sequentially fixed to or above the surface of the local water area via cross cables or foundation piles.

6. The retractable bubble curtain system according to claim 4, characterized in that, It also includes a floating assembly disposed at the edge of the liquid surface of the local water area, and a plurality of the first driving units are disposed on the floating assembly.

7. The retractable bubble curtain system according to claim 6, characterized in that, The floating assembly is equipped with a traction unit, which is suitable for detachable connection with the tow cable of a tugboat, so as to adjust the position of the bubble assembly by moving the floating assembly.

8. The retractable bubble curtain system according to claim 6, characterized in that, The floating component is provided with a propulsion unit and is configured to drive the floating component to move.

9. The retractable bubble curtain system according to claim 1, characterized in that, The adjustment component includes: At least one airbag unit is disposed on the bubble assembly; and An inflation / deflation unit, connected to the airbag unit via an air tube, is configured to adjust the inflation volume of the airbag unit to cause the bubble assembly to float or sink.

10. The retractable bubble curtain system according to claim 1, characterized in that, The adjustment component includes multiple second drive units, which are respectively disposed on multiple ropes extending from the bottom of the water to the surface of the liquid or above the surface of the liquid, and are configured to drive the bubble component to move along the multiple ropes. Among them, the ends of the multiple ropes near the liquid surface are fixed at intervals.

11. The retractable bubble curtain system according to any one of claims 1-10, characterized in that, It also includes a control unit, which is communicatively connected to the adjustment component.

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