Underwater defense system of marine comprehensive energy island and marine comprehensive energy island

Abstract

The invention provides an underwater defense system of a marine comprehensive energy island and the marine comprehensive energy island. Wherein the underwater defense system comprises an anti-explosion protection system, an air curtain-vortex protection system and an underwater denial protection system, and a plurality of anti-explosion units in the anti-explosion protection system are laminated and uniformly arranged outside a floating body at the lower end of the comprehensive energy island; the air curtain-vortex protection system is arranged on a seabed reef at the bottom of the comprehensive energy island; the underwater denial protection system comprises a plurality of inspection robots so as to monitor underwater state information of a sea area near the comprehensive energy island in real time; when the comprehensive energy island is attacked, the multiple anti-explosion units adjust the inclination angles of the anti-explosion units so as to change the propagation direction of underwater shock waves. The air curtain-vortex protection system generates and releases bubbles so as to form a bubble curtain wall used for changing the propagation direction of underwater shock waves. The defense system is arranged near the comprehensive energy island and provides underwater defense for the comprehensive energy island, and normal and safe operation and energy supply of the comprehensive energy island are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and more specifically, to an underwater defense system and a marine integrated energy island capable of being used in deep-sea integrated energy islands. Background Technology

[0002] Floating integrated energy islands are crucial infrastructure for providing energy security to deep-sea islands and reefs. Typically built near important military islands and reefs, they integrate various energy harvesting, conversion, and storage facilities to achieve efficient energy utilization and stable output, providing substantial energy to these islands. Therefore, in the event of maritime military conflict, energy islands are vulnerable to attack and detection, including sonar detection, shockwave impacts, and attacks from other underwater equipment. Traditional energy island structures and related facilities often lack effective protective measures, resulting in significant damage during military attacks, impacting the normal operation of the energy island and ultimately leading to a failure to provide adequate energy supply. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an underwater defense system and an integrated marine energy island, so as to provide protection for the energy island in the event of a military attack and ensure the normal operation of the energy island.

[0004] To address the aforementioned technical problems, embodiments of the present invention provide an underwater defense system for a comprehensive marine energy island, comprising:

[0005] An anti-blast protection system, comprising multiple anti-blast units, which are stacked and evenly arranged outside the floating body at the lower end of the integrated energy island. When the integrated energy island is attacked, the multiple anti-blast units adjust their tilt angle to change the propagation direction of the underwater shock wave.

[0006] An air curtain-vortex protection system, deployed on the seabed reef at the bottom of the integrated energy island, generates and releases bubbles when the integrated energy island is attacked, forming a bubble curtain to change the propagation direction of underwater shock waves; and

[0007] The underwater denial protection system includes multiple inspection robots for real-time monitoring of the underwater status information of the sea area near the integrated energy island; the blast-resistant protection system, the air curtain-vortex protection system, and the underwater denial protection system are all powered by the integrated energy island.

[0008] In one embodiment, each blast-resistant unit includes:

[0009] A base, one side of which is fixedly connected to the outside of the float, and an explosion-proof signal processing and micro-drive mechanism are installed inside the base; and

[0010] An explosion-proof plate is disposed on the other side of the base and rotatably connected to the micro-drive mechanism; when the integrated energy island is attacked, the explosion-proof signal processing module controls the micro-drive mechanism to start and drive the explosion-proof plate to deflect by a preset angle.

[0011] In one embodiment, the base is a spherical hinge base, and the explosion-proof plate is rotatably connected to a micro-drive mechanism inside the base via a spherical hinge;

[0012] In one embodiment, the explosion-proof plate is a circular sheet structure with a predetermined thickness;

[0013] In one embodiment, the explosion-proof plate is made of boron carbide ceramic-titanium alloy.

[0014] In one embodiment, the air curtain-vortex protection system includes:

[0015] An annular air pipe is located below the float, and multiple air holes are evenly distributed on the annular air pipe, with the openings of the multiple air holes all facing the float.

[0016] A support structure, disposed below the annular air pipe to support the annular air pipe, with its other end fixed to the seabed reef of the integrated energy island; and

[0017] An air curtain control box is disposed within the annular ring of the annular air pipe and its bottom is fixed to the seabed reef of the integrated energy island. The air curtain control box contains an energy storage device, an air compressor, and a signal receiving and processing device. The air compressor is connected to the annular air pipe. When the integrated energy island is attacked, the signal receiving and processing device is activated and controls the air compressor to supply compressed gas to the annular air pipe, and releases bubbles through the annular air pipe to form a bubble curtain.

[0018] In one embodiment, the annular air pipe has a notch, with the end of the annular air pipe on one side of the notch being the air inlet and the end of the annular air pipe on the other side of the notch being the air outlet, and the air compression device being connected to the air inlet and the air outlet respectively.

[0019] In one embodiment, the annular air tube has multiple turns, which are sequentially fitted around the air curtain control box, and the notches on the multiple turns of the annular air tube are staggered.

[0020] In one embodiment, the air compressor is connected to the inlet end of the annular air pipe via an inlet pipe and to the outlet end of the annular air pipe via an outlet pipe; the air compressor injects airflow into the annular air pipe through the inlet pipe, a portion of the airflow forms gas-liquid phase bubbles with the liquid outside the annular air pipe, the bubbles are output through the air holes on the annular air pipe and form a bubble curtain, and another portion of the airflow flows back into the air compressor through the outlet pipe.

[0021] In one embodiment, the plurality of inspection robots are all water strider inspection robots, which are deployed in the waters near the integrated energy island. Each water strider inspection robot is equipped with a power unit and a sensor assembly. The sensor assembly is communicatively connected to the central processing system to monitor and provide feedback on the underwater status information of the sea area near the integrated energy island in real time.

[0022] In one embodiment, the underwater defense system of the integrated marine energy island further includes:

[0023] A central processing system is located within the integrated energy island. The central processing system is communicatively connected to the blast protection system, the air curtain-vortex protection system, and the underwater denial protection system. Based on the underwater status information received from the underwater denial protection system, the central processing system generates adjustment signals to control the blast protection system to adjust its own angle and start signals to control the air curtain-vortex protection system to activate.

[0024] An embodiment of the present invention also provides a marine integrated energy island, wherein the bottom of the integrated energy island is provided with an underwater defense system as described in the above embodiments, and the integrated energy island includes:

[0025] The platform is used to house energy production equipment, conversion equipment, and transmission equipment.

[0026] The column, the top of which is fixedly connected to the bottom surface of the platform, is used to support the platform; and

[0027] A floating body that floats on the sea surface, with its top end fixedly connected to the bottom end of a column and its bottom end fixedly connected to the seabed via mooring cables. The floating body includes multiple compartments, each of which includes a ballast water tank. The buoyancy or center of gravity of the floating body is adjusted by injecting or discharging seawater from the ballast water tank.

[0028] The above-described solution of the present invention has at least the following beneficial effects:

[0029] (1) In the defense system of the present invention, by setting up an anti-blast protection system, when the floating body of the integrated energy island is impacted, the transmission trajectory of the underwater shock wave can be deflected by the anti-blast unit, thereby reducing the impact on the platform and floating body of the integrated energy island and ensuring the safety of the integrated energy island.

[0030] (2) In the defense system of the present invention, by setting up an air curtain-vortex protection system, bubbles can be released and bubble curtains can be formed when attacked, which can change the propagation direction of underwater shock waves on the one hand, and disrupt sonar detection on the other hand.

[0031] (3) In the defense system of the present invention, by setting up an underwater denial protection system, the situation of the waters near the integrated energy island can be inspected in real time, and the underwater status information of the monitoring island can be fed back in real time; in addition, the underwater denial protection system can also drive away frogmen or interfere with the attacks on the integrated energy island by drones, unmanned boats and submarines when conducting inspections. Attached Figure Description

[0032] Figure 1 This is a schematic diagram showing the distribution of the underwater defense system and integrated energy island provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the connection between the explosion-proof protection system and the float provided in an optional embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the distribution of the explosion-proof unit provided in an optional embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram from another perspective showing the connection between the blast-resistant protection system and the float provided in an optional embodiment of the present invention;

[0036] Figure 5 This is an exploded view of an blast-resistant unit provided in an optional embodiment of the present invention;

[0037] Figure 6 This is a front view of an explosion-proof unit provided in an optional embodiment of the present invention;

[0038] Figure 7 This is a three-dimensional structural schematic diagram of an air curtain-vortex protection system provided in an optional embodiment of the present invention;

[0039] Figure 8 This is a three-dimensional structural schematic diagram of an air curtain-vortex protection system provided in an optional embodiment of the present invention from another perspective;

[0040] Figure 9 This is a top view of an air curtain-vortex protection system provided in an optional embodiment of the present invention.

[0041] Explanation of icon numbers:

[0042] 1. Platform; 2. Column; 3. Float; 4. Explosion-proof protection system; 5. Air curtain-eddy current protection system; 6. Underwater denial protection system; 7. Explosion-proof plate; 8. Base; 9. Air hole; 10. Annular air pipe; 11. Support seat; 12. Column; 13. Air inlet pipe; 14. Air outlet pipe; 15. Air curtain control box. Detailed Implementation

[0043] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0044] In the description of this invention, it should be understood that the terms "comprising / including," "consisting of," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements includes not only those elements but may also include, where necessary, other elements not expressly listed, or elements inherent to such a product, apparatus, process, or method. Without further limitation, an element defined by the phrases "comprising / including," "consisting of," does not exclude the presence of additional identical elements in the product, apparatus, process, or method that includes said element.

[0045] It should also be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] The underwater defense system provided in the following embodiments of the present invention is mainly deployed on integrated marine energy islands in deep sea areas, such as... Figure 1 As shown, the main structure of the integrated energy island may include a platform 1, pillars 2, and floating bodies 3. Platform 1, as the core working area of ​​the integrated energy island, is mainly used to support key equipment such as energy production equipment, conversion equipment, and transmission equipment. Pillars 2 are located below platform 1, with their tops fixedly connected to the bottom surface of platform 1, supporting platform 1 to evenly transfer its weight to the floating bodies 3 below, ensuring the platform 1 maintains stability on the sea surface. Preferably, pillars 2 can serve as channels for laying cables, pipes, and other facilities, connecting other underwater facilities to the equipment on platform 1.

[0049] The float 3 is located at the bottom of the column 2, with its top end fixedly connected to the bottom of the column 2 and its bottom end fixedly connected to the seabed via mooring cables. The float 3 provides buoyancy to the overall structure of the integrated energy island, enabling it to float on the sea surface. The float 3 may include multiple compartments, providing installation space for some equipment. These compartments may include ballast water tanks, allowing the buoyancy or center of gravity of the float 3 to be adjusted by injecting or draining seawater according to sea conditions, operating conditions, or other special circumstances, thereby controlling the draft and stability of the integrated energy island as needed.

[0050] Here, one end of the mooring cable is connected to the bottom of the buoy 3, and the other end can be fixed to the seabed through an anchoring system to ensure the positioning of the integrated energy island and reduce drifting and swaying. The mooring cable is preferably an elastic cable, which can absorb and buffer the energy generated by waves and currents to a certain extent, while also ensuring the stability and safety of the integrated energy island in the face of tides and extreme sea conditions. The underwater defense system at the bottom of the integrated energy island will be described in detail below with reference to specific embodiments and accompanying drawings.

[0051] like Figure 1As shown, embodiments of the present invention provide an underwater defense system for a marine integrated energy island, which may include an anti-blast protection system 4, an air curtain-vortex protection system 5, and an underwater denial protection system. The anti-blast protection system 4 consists of multiple anti-blast units, which are stacked and evenly arranged outside the floating body 3 at the lower end of the integrated energy island. When the integrated energy island is attacked, the multiple anti-blast units adjust their tilt angles to change the propagation direction of the underwater shock wave. The air curtain-vortex protection system 5 is arranged on the seabed reef at the bottom of the integrated energy island. When the integrated energy island is attacked, the air curtain-vortex protection system 5 generates and releases bubbles to form a bubble curtain to change the propagation direction of the underwater shock wave. The underwater denial protection system includes multiple inspection robots 6 for real-time monitoring of the underwater status information of the waters near the integrated energy island; the anti-blast protection system 4, the air curtain-vortex protection system 5, and the underwater denial protection system are all powered by the integrated energy island.

[0052] In this embodiment, such as Figures 2 to 4 As shown, multiple blast-resistant units in the blast-resistant protection system 4 are arranged in a scale-like stack outside the float 3. When the integrated energy island is attacked, the blast-resistant units can automatically adjust their tilt angle according to the direction of the underwater shock wave to avoid direct impact and reduce the impact force borne by the blast-resistant units. At the same time, through the reflection effect of the blast-resistant units, the trajectory direction of the underwater shock wave, i.e., the impact angle, can also be changed, thereby reducing the impact on the platform 1 and the float 3 and ensuring the stability of the entire integrated energy island.

[0053] The air curtain-vortex protection system 5 is located directly below the float 3, and its bottom is fixedly connected to the seabed reef of the integrated energy island. When the integrated energy island is attacked, the air curtain-vortex protection system 5 can generate and release bubbles. The bubbles gradually rise in the water and form a bubble curtain wall with the continuously released bubbles. The entire bubble curtain wall surrounds the bottom of the integrated energy island. On the one hand, it can change the propagation direction of the underwater shock wave, and on the other hand, it can also interfere with sonar detection to ensure the stability of the integrated energy island.

[0054] The underwater denial protection system is a cluster of inspection robots 6, deployed in the waters near the integrated energy island to monitor the underwater status information of the surrounding waters in real time during inspections. This underwater status information may include the appearance of the integrated energy island, equipment status, structural damage information, distance to foreign objects, and shock wave signals from the nearby waters. Preferably, the blast protection system 4, the air curtain-eddy current protection system 5, and the underwater denial protection system can each be equipped with a signal processing module, and the three can communicate with each other through the signal processing module. This allows the blast protection system 4 and the air curtain-eddy current protection system 5 to promptly activate defensive measures after receiving the underwater status information sent by the underwater denial protection system, thereby ensuring the safety of the integrated energy island. When activating defensive measures, the blast protection system 4 and the air curtain-eddy current protection system 5 can be activated simultaneously, or only one of them can be activated, depending on the level of danger information in the underwater status information.

[0055] Preferably, the multiple inspection robots 6 of the underwater denial protection system can also drive away frogmen during inspections, ensuring the safety of the waters near the integrated energy island; in addition, the multiple inspection robots 6 can also activate plasma and form an electromagnetic shielding layer during nighttime inspections to interfere with attacks on the energy island by drones, unmanned surface vessels and submarines, further ensuring the safety of the integrated energy island.

[0056] In an optional embodiment of the present invention, the underwater defense system of the aforementioned integrated marine energy island may further include a central processing system. This central processing system is located within the integrated energy island, preferably inside the floating body 3. The central processing system is communicatively connected to the blast protection system 4, the air curtain-vortex protection system 5, and the underwater denial protection system. Based on the underwater status information received from the underwater denial protection system, the central processing system generates adjustment signals for controlling the blast protection system 4 to adjust its own angle and activation signals for controlling the air curtain-vortex protection system 5 to open.

[0057] In this embodiment, the central processing system, as the core of the defense system, is responsible for defense measure planning, scheduling of the inspection robots 6 in the underwater denial protection system, data processing and analysis, and system monitoring. The central processing system can consist of a high-performance computer server, data storage devices, monitoring software, etc. It communicates in real-time with the inspection robots 6 in the underwater denial protection system to receive information collected by the robots and send commands, while simultaneously providing comprehensive monitoring and management of the entire cluster's operational status.

[0058] When the integrated energy island is attacked, after receiving shock wave signals from multiple inspection robots 6, the central processing system can use a pre-written algorithm program and the time difference between the time the shock wave is received by each inspection robot 6 to quickly and accurately calculate the direction of the shock wave attack, and calculate the optimal tilt angle of each blast-resistant unit in the blast-resistant protection system 4. Finally, it generates adjustment signals and transmits them to the corresponding blast-resistant units to complete the adjustment of the tilt angle of each blast-resistant unit. At the same time, the central processing system can generate a start signal to control the activation of the air curtain-vortex protection system 5 based on the received shock wave signals. After receiving the start signal, the air curtain-vortex protection system 5 can be activated in time and control the release of bubbles from the annular air pipe to form a bubble curtain wall to change the propagation direction of the underwater shock wave, thereby reducing the impact of the underwater shock wave on the integrated energy island and ensuring the stability of the integrated energy island.

[0059] like Figures 2 to 4 As shown, in an optional embodiment of the present invention, each blast-resistant unit may include a base 8 and a blast-resistant plate 7. One side of the base 8 is fixedly connected to the outside of the float 3, and a blast-resistant signal processing module and a micro-drive mechanism are disposed inside the base 8. The blast-resistant plate 7 is disposed on the other side of the base 8 and rotatably connected to the micro-drive mechanism. When the integrated energy island is attacked, the blast-resistant signal processing module controls the micro-drive mechanism to start and drive the blast-resistant plate 7 to deflect by a preset angle.

[0060] In this embodiment, multiple bases 8 are evenly distributed around the float 3 so that the corresponding multiple explosion-proof plates 7 are movably connected to the corresponding bases 8 and cover the outside of the float 3 in a scale-like stack. By arranging the explosion-proof plates 7 in a scale-like stack, on the one hand, the angle can be adjusted according to the impact direction for more effective protection, and on the other hand, it can also cover the protection gap of the individual explosion-proof unit, further improving the explosion-proof protection of the float 3.

[0061] The base 8 houses an anti-blast signal processing module and a micro-drive mechanism. When the integrated energy island is attacked, the anti-blast signal processing module, upon receiving an adjustment signal (containing the tilt angle) from the central processing system, controls and activates the micro-drive mechanism to rotate and tilt the anti-blast plate 7 by a corresponding angle. This minimizes the angle between the anti-blast plate 7 and the underwater shock wave, preventing direct impact and reducing the pressure on the anti-blast plate 7. Simultaneously, the anti-blast plate 7 reflects the underwater shock wave, altering its propagation direction and angle, preventing significant impact on the integrated energy island's buoyancy and ensuring its stability. Preferably, the tilt angle of the anti-blast plate 7 can be 30° to 45° along the direction of the underwater shock wave. Here, the anti-blast signal processing module and micro-drive mechanism can be existing signal processing chips and electric drive mechanisms; specific models or structures are not limited, as long as high-precision drive control is ensured.

[0062] In an optional embodiment of the present invention, the explosion-proof plate 7 may be a circular sheet structure with a preset thickness to avoid the jamming phenomenon caused by the presence of apex corners when other plate structures with apex corners (such as rectangles or squares) are tilted, thereby further ensuring the accuracy of the angle adjustment of the explosion-proof plate 7.

[0063] Preferably, the material of the explosion-proof plate 7 can be boron carbide ceramic-titanium alloy to ensure the impact resistance and corrosion resistance of the explosion-proof plate 7. Of course, other materials with high impact resistance and corrosion resistance can also be used.

[0064] like Figures 5 to 6 As shown, in an optional embodiment of the present invention, the base 8 is a spherical hinge base, and the explosion-proof plate 7 is rotatably connected to the micro-drive mechanism inside the base 8 via the spherical hinge. Here, the spherical hinge can be integrally formed with one side of the explosion-proof plate 7, and one side of the spherical hinge is snapped into the base 8 and rotatably connected to the micro-drive mechanism; by setting the spherical hinge structure, the micro-drive mechanism can drive the explosion-proof plate 7 to tilt at corresponding angles in different directions, so as to ensure the accuracy of drive control and achieve explosion-proof protection for the float 3.

[0065] See Figures 7 to 9 In an optional embodiment of the present invention, the air curtain-vortex protection system 5 may include an annular air pipe 10, a support structure, and an air curtain control box 15. The annular air pipe 10 is located below the float 3, and each annular air pipe 10 has multiple air holes 9, with the openings of the multiple air holes 9 all facing the float 3. The support structure is disposed below the annular air pipe 10 to support it, and the other end of the support structure is fixed to the seabed reef of the integrated energy island. The air curtain control box 15 is disposed within the annular ring of the annular air pipe 10 and its bottom is fixed to the seabed reef of the integrated energy island. The air curtain control box 15 contains an energy storage device, an air compressor, and a signal receiving and processing device; the air compressor is connected to the annular air pipe 10. When the integrated energy island is attacked, the signal receiving and processing device activates and controls the air compressor to supply compressed gas to the annular air pipe 10, and releases bubbles through the annular air pipe 10 to form a bubble curtain.

[0066] In this embodiment, the annular air duct 10 is the main structure of the air curtain-vortex protection system 5, and is arranged on the seabed reef of the integrated energy island through the supporting structure below. The air curtain control box 15 serves as the integrated control center and gas delivery and exchange center of the air curtain-vortex protection system 5, and is equipped with an energy storage device, an air compressor, and a signal receiving and processing device. Simultaneously, the air curtain control box 15 can be connected to the integrated energy island via a flexible hose to facilitate the supply of air and energy to the air compressor. Furthermore, the signal receiving and processing device in the air curtain control box 15 is communicatively connected to the central processing system. Upon receiving a start signal (which carries the airflow rate), it controls the air compressor to input specific air into the annular air duct 10. A compressed airflow at a certain speed passes through multiple evenly spaced air holes 9 on an annular air pipe 10, all facing the float 3. When the compressed airflow enters the annular air pipe 10, it overflows through the air holes 9 and forms bubbles that are ejected into the water outside the annular air pipe 10. The bubbles in the water gradually rise and increase in size as the water pressure decreases during the ascent. When they reach the water surface, the cavitation bubbles burst. By continuously introducing compressed airflow into the annular air pipe 10, the formed bubbles can continuously overflow along the entire annular air pipe 10 and rise in the water, thereby forming a bubble curtain surrounding the float 3 and the water below it. This changes the propagation direction of the underwater shock wave and can also disrupt sonar detection.

[0067] Because the compressed airflow always flows along a circular trajectory within the annular duct 10, it continuously undergoes circular motion within the duct cavity as it passes through continuously. When the compressed airflow exits from the air hole 9 within the annular duct 10, due to its inherent circular motion tendency, the ejected compressed airflow and the resulting bubbles carry a velocity component along the tangential direction of the ring. This means the bubbles move along a composite trajectory of "towards the float + circular rotation" as they rise in the water. The large number of bubbles exhibiting this rotating upward motion strengthens the rotational effect of the annular airflow field, ultimately forming a gas-liquid vortex. This further enhances the bubble curtain's ability to resist interference from shock waves and sonar detection, thereby improving the protective capability of the air curtain-vortex protection system 5. The material of the annular duct 10 is not specifically limited; however, any corrosion-resistant material is acceptable. An air compressor is preferred as the air compression device, and it is used in conjunction with an air pump to control the rate and delivery of the compressed airflow.

[0068] Here, multiple support structures can be set and evenly distributed below the annular air pipe 10 to ensure the stability of the annular air pipe 10. Preferably, each support structure can include a support base 11 and a support column 12. The support base 11 is snapped into the bottom of the annular air pipe 10 to fix and support the entire annular air pipe 10. The support column 12 is set below the support base 10, with its top end fixedly connected to the bottom of the support base 11, and its bottom end fixed to the seabed reef of the integrated energy island by piling, thus providing protection for the integrated energy island.

[0069] In an optional embodiment of the present invention, a notch is provided on the annular air pipe 10, the end of the annular air pipe on one side of the notch is the air inlet end, and the end of the annular air pipe on the other side of the notch is the air outlet end, and the air compression device is connected to the air inlet end and the air outlet end respectively.

[0070] Furthermore, the annular air tube 10 has multiple turns, which are sequentially fitted around the air curtain control box 15, with the notches on the multiple turns of the annular air tube 10 being staggered. Here, the multiple turns of the annular air tube 10 are sequentially fitted around the air curtain control box 15 with the center as the center, and the diameter of the multiple turns of the annular air tube 10 increases sequentially.

[0071] Preferably, the vents 9 on adjacent annular vents 10 are of different sizes to better achieve bubble arrangement and spatial coverage of the water area. Here, vents of different sizes produce bubbles of different sizes. Larger bubbles can cover the water area more quickly and dissipate more energy when encountering shock waves. Since the gaps between larger bubbles are also larger, smaller bubbles are generated by setting smaller vents to superimpose on the gaps between larger bubbles, filling the gaps and forming a three-dimensional, gradient-distributed bubble curtain. This facilitates the dispersion of shock wave energy from different depths and dimensions, avoiding "protective gaps" caused by bubbles of a single size.

[0072] Furthermore, since sonar detection relies on the reflection and reception of underwater sound waves, bubbles of different sizes have different effects on sound waves. Small bubbles have a stronger ability to scatter and absorb high-frequency sonar waves, while large bubbles have a better effect on blocking and reflecting low-frequency sonar waves. Therefore, a mixed bubble group formed by bubbles of different sizes generated by pores of different sizes can cover a wider sonar frequency band, avoiding the limitation that a single-size bubble can only interfere with sonar at a specific frequency, thereby maximizing the reduction of sonar detection accuracy and achieving more effective anti-detection protection. Here, each ring of air pipe 10 has an independent air inlet pipe 13 and air outlet pipe 14. The air inlet and air outlet ends of the notch on each ring of air pipe 10 are connected to the air compression device through the air inlet pipe 13 and air outlet pipe 14, respectively. The notches on the multiple rings of air pipe 10 are staggered to avoid fixed gaps in the multi-ring bubble curtain, ensuring the tightness of the multi-ring bubble curtain and thus improving the safety of the system protection.

[0073] In an optional embodiment of the present invention, the air compressor is connected to the inlet end of the annular air pipe 10 through the inlet pipe 13 and to the outlet end of the annular air pipe 10 through the outlet pipe 14; the air compressor injects airflow into the annular air pipe 10 through the inlet pipe 13, a portion of the airflow forms gas-liquid phase flow bubbles with the liquid outside the annular air pipe 10, the bubbles are output through the air holes on the annular air pipe 10 and form a bubble curtain, and the other portion of the airflow flows back to the air compressor through the outlet pipe 14.

[0074] Furthermore, after flowing back to the air compressor, the airflow is processed and mixed with the newly input airflow, then flows from the inlet pipe 13 into the annular inlet pipe 10 and back to the air compressor through the outlet pipe 14. This cycle repeats continuously to ensure that bubbles can continuously escape from the air holes in the annular air pipe 10, thereby forming a bubble curtain. It should be understood that the signal receiving and processing device can control the air compressor to change the airflow rate entering the annular air pipe 10 based on the received data from the central processing system, thereby controlling the size and density of bubbles in the bubble curtain formed by each annular air pipe 10.

[0075] In an optional embodiment of the present invention, the plurality of inspection robots 6 are all water strider inspection robots, which are deployed in the waters near the integrated energy island. Each water strider inspection robot is equipped with a power unit and a sensor assembly. The sensor assembly is communicatively connected to the central processing system to monitor and provide feedback on the underwater status information of the waters near the integrated energy island in real time.

[0076] In this embodiment, all inspection robots 6 are water strider-type inspection robots, with a shape similar to a water strider. They preferably use a thin, flat shell to reduce water resistance and improve their movement efficiency on and under water. Each inspection robot 6 is equipped with a power unit and a sensor system. All inspection robots 6 are uniformly coordinated and controlled by a central processing system and are powered by a charging platform on the integrated energy island.

[0077] Preferably, the power unit can be a small propeller or water jet propulsion device, and is driven by an electric motor.

[0078] Here, the sensor system may include perspective sensors, acoustic sensors, and environmental sensors, mainly used to monitor underwater status information in the waters near the integrated energy island, such as the appearance of the integrated energy island, equipment status, detection of structural damage, measurement of the distance between the robot and external objects, obstacle avoidance, and detection of structures intruding into the waters. In one feasible example, the acoustic sensor may be a hydrophone, which can capture underwater shock wave signals in the waters near the integrated energy island and transmit them to the central processing system inside the float 3. The central processing system will process the signals accordingly and generate start-up and adjustment signals so that the explosion-proof protection system 4 and the air curtain-vortex protection system 5 can take corresponding defensive measures to protect themselves.

[0079] In the underwater defense system for the integrated energy island provided in the above embodiments of the present invention, the main structure of the underwater denial protection system is a cluster of water strider inspection robots, consisting of multiple water strider inspection robots deployed in the waters near the energy island to monitor underwater status information in real time. The main structure of the blast-resistant protection system is located on the outer layer of the floating body at the bottom of the integrated energy island, and is composed of boron carbide ceramic-titanium alloy laminated fish-scale-shaped units. The main structure of the air curtain-vortex protection system is a multi-ringed air pipe, which is deployed on the seabed reef of the integrated energy island through a supporting structure below.

[0080] When a water strider-type inspection robot detects an underwater shock wave signal in the waters near the integrated energy island, it transmits the signal to the central processing system inside the buoy. The central processing system, based on a pre-programmed algorithm and the time difference between the signals received by each water strider, quickly and accurately calculates the direction of the shock wave's impact. It then calculates the optimal tilt angle for each blast-resistant plate in the blast-resistant protection system and generates an adjustment signal, which is simultaneously transmitted to the blast-resistant signal processing module at the base of the corresponding blast-resistant unit. Upon receiving the signal, the base controls the rotation of the ball joint via an internal micro-motor, causing each blast-resistant plate to rotate by the corresponding angle. This minimizes the angle between the blast-resistant plate and the shock wave, preventing direct impact and reducing the pressure on the blast-resistant plate. Simultaneously, the reflection of the shock wave by the blast-resistant plate alters the direction and angle of shock wave propagation, preventing the integrated energy island buoy from suffering significant impact.

[0081] Simultaneously, the central processing system calculates the rate at which the air compressor in the air curtain-vortex protection system releases compressed air according to a pre-programmed algorithm. It then generates a corresponding activation signal, which is transmitted to the signal receiving and processing unit in the air curtain control box. This signal controls the air compressor to provide airflow at the appropriate rate, flowing from the intake pipe into the annular air pipe and forming bubbles. These bubbles are then ejected from the vents on the annular air pipe into the surrounding water. The cavitation bubbles gradually rise in the water, increasing in size as the water pressure decreases, until they burst at the surface. Thus, the dense cavitation bubbles ejected from the vents of varying sizes in multiple annular air pipes rise from the seabed to form a bubble curtain around the integrated energy island, thereby interfering with sonar detection and altering the direction of underwater shock wave propagation.

[0082] Therefore, those skilled in the art should recognize that although exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can still be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

[0083] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. An underwater defense system for a comprehensive marine energy island, characterized in that, include: An anti-blast protection system, comprising multiple anti-blast units, which are stacked and evenly arranged outside the floating body at the lower end of the integrated energy island. When the integrated energy island is attacked, the multiple anti-blast units adjust their tilt angle to change the propagation direction of the underwater shock wave. An air curtain-vortex protection system, deployed on the seabed reef at the bottom of the integrated energy island, generates and releases bubbles when the integrated energy island is attacked, forming a bubble curtain to change the propagation direction of underwater shock waves; and An underwater denial protection system, comprising multiple inspection robots, is used to monitor the underwater status information of the sea area near the integrated energy island in real time. The explosion-proof protection system, the air curtain-vortex protection system, and the underwater denial protection system are all powered by the integrated energy island.

2. The underwater defense system for a comprehensive marine energy island according to claim 1, characterized in that, Each blast-resistant unit includes: A base, one side of which is fixedly connected to the outside of the float, and an explosion-proof signal processing module and a micro-drive mechanism are disposed inside the base; and An explosion-proof plate is disposed on the other side of the base and rotatably connected to the micro-drive mechanism; when the integrated energy island is attacked, the explosion-proof signal processing module controls the micro-drive mechanism to start and drive the explosion-proof plate to deflect by a preset angle.

3. The underwater defense system for a comprehensive marine energy island according to claim 2, characterized in that, The base is a spherical hinge base, and the explosion-proof plate is rotatably connected to the micro drive mechanism inside the base through the spherical hinge. And / or, the explosion-proof plate is a circular sheet structure with a preset thickness; And / or, the material of the explosion-proof plate is boron carbide ceramic-titanium alloy.

4. The underwater defense system for a comprehensive marine energy island according to claim 1, characterized in that, The air curtain-vortex protection system includes: An annular air pipe is located below the float, and multiple air holes are evenly distributed on the annular air pipe, with the openings of the multiple air holes all facing the float. A support structure, disposed below the annular air pipe to support the annular air pipe, with its other end fixed to the seabed reef of the integrated energy island; and An air curtain control box is disposed within the annular ring of the annular air pipe and its bottom is fixed to the seabed reef of the integrated energy island. The air curtain control box contains an energy storage device, an air compressor, and a signal receiving and processing device. The air compressor is connected to the annular air pipe. When the integrated energy island is attacked, the signal receiving and processing device is activated and controls the air compressor to supply compressed gas to the annular air pipe, and releases bubbles through the annular air pipe to form a bubble curtain.

5. The underwater defense system for a comprehensive marine energy island according to claim 4, characterized in that, The annular air pipe has a notch, with the end of the annular air pipe on one side of the notch being the air inlet and the end of the annular air pipe on the other side of the notch being the air outlet. The air compression device is connected to the air inlet and the air outlet respectively.

6. The underwater defense system for a comprehensive marine energy island according to claim 5, characterized in that, The annular air tube has multiple turns, and the multiple turns of the annular air tube are sequentially sleeved around the air curtain control box, with the notches on the multiple turns of the annular air tube being staggered.

7. The underwater defense system for a comprehensive marine energy island according to claim 5, characterized in that, The air compressor is connected to the inlet end of the annular air pipe through an inlet pipe and to the outlet end of the annular air pipe through an outlet pipe. The air compressor injects airflow into the annular air pipe through the inlet pipe. A portion of the airflow forms gas-liquid phase bubbles with the liquid outside the annular air pipe. The bubbles are output through the air holes on the annular air pipe and form a bubble curtain. The other portion of the airflow flows back into the air compressor through the outlet pipe.

8. The underwater defense system for a comprehensive marine energy island according to claim 1, characterized in that, The inspection robots are all water striders, and they are deployed in the waters near the integrated energy island. Each water strider is equipped with a power unit and a sensor assembly, which is used to monitor and provide feedback on the underwater status information of the waters near the integrated energy island in real time.

9. The underwater defense system for a comprehensive marine energy island according to claim 1, characterized in that, Also includes: A central processing system is located within the integrated energy island. The central processing system is communicatively connected to the blast protection system, the air curtain-vortex protection system, and the underwater denial protection system. Based on the underwater status information received from the underwater denial protection system, the central processing system generates adjustment signals to control the blast protection system to adjust its own angle and start signals to control the air curtain-vortex protection system to activate.

10. A marine integrated energy island, characterized in that, The bottom of the integrated energy island is provided with an underwater defense system as described in any one of claims 1 to 9, and the integrated energy island comprises: The platform is used to house energy production equipment, conversion equipment, and transmission equipment. The column, the top of which is fixedly connected to the bottom surface of the platform, is used to support the platform; and A floating body that floats on the sea surface, with its top end fixedly connected to the bottom end of a column and its bottom end fixedly connected to the seabed via mooring cables. The floating body includes multiple compartments, each of which includes a ballast water tank. The buoyancy or center of gravity of the floating body is adjusted by injecting or discharging seawater from the ballast water tank.

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