A seabed energy storage system resistant to underwater explosions

Abstract

The application provides a seabed energy storage system resisting underwater explosion, comprising: an underwater energy storage unit comprising a plurality of energy storage chambers, a shell unit coated outside the underwater energy storage unit, a support unit comprising a support, a magnetorheological elastic bearing and a magnetorheological elastic energy dissipation module, and a plurality of buoyancy compensation units uniformly distributed between the underwater energy storage unit and the magnetorheological elastic bearing. The energy dissipation module is arranged on a seabed base, the two ends of the bearing are fixedly connected with the top of the energy dissipation module and the bottom of the shell unit respectively, and the two ends of the support are fixedly connected with the bottom of the shell unit and the edge of the seabed base respectively; when the system moves and the shell unit is damaged and separated from the underwater energy storage unit due to the shock wave of underwater explosion, the moving distance of the system is controlled by the movement of the bearing and the energy dissipation module; the buoyancy compensation units provide buoyancy to lift the underwater energy storage unit out of the sea surface. The scheme of the application can improve the anti-explosion ability of the seabed energy storage system, realize system integration and multiple protection, and ensure the safety of deep-sea energy storage.

Description

Technical Field

[0001] This invention relates to the fields of marine energy storage technology and military defense technology, and more specifically, to a seabed energy storage system that can withstand underwater explosions. Background Technology

[0002] With the development of marine resources and the increasing strategic importance of the ocean, the demand for subsea energy storage technology is growing. However, the underwater environment is complex, especially in military defense scenarios, where subsea energy storage facilities face the threat of underwater explosions. Traditional subsea energy storage devices have significant shortcomings in terms of blast resistance. Once subjected to an underwater explosion, the energy storage module is easily damaged, leading to serious consequences such as energy leakage and system failure. This not only causes huge economic losses but may also affect the smooth conduct of military operations. Therefore, developing a subsea energy storage module system with high blast resistance and its protection method is of great practical significance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a subsea energy storage system that can resist underwater explosions, so as to improve the explosion resistance of subsea energy storage devices and ensure the safety of subsea energy storage devices when they are subjected to explosions.

[0004] To address the aforementioned technical problems, embodiments of the present invention provide a subsea energy storage system resistant to underwater explosions, comprising:

[0005] The underwater energy storage unit includes multiple spaced-apart energy storage chambers, each of which contains multiple energy storage batteries evenly distributed, and a phase change temperature control layer is provided between two adjacent energy storage chambers.

[0006] A shell unit is used to enclose the underwater energy storage unit to protect it from the shock wave generated by an underwater explosion.

[0007] The support unit includes a bracket, a magnetohydrodynamic (MHD) elastic bearing, and a MHD energy dissipation module. The MHD energy dissipation module is mounted on a seabed base. The two ends of the MHD elastic bearing are fixedly connected to the top of the MHD energy dissipation module and the bottom of the shell unit, respectively. The bottom of the bracket is evenly distributed along the edge of the seabed base and located around the MHD energy dissipation module. The top of the bracket is fixedly connected to the bottom of the shell unit. When the system moves due to the shock wave generated by an underwater explosion, the magnetic field strength in the MHD elastic bearing and the MHD energy dissipation module is sequentially changed to move them, thereby controlling the system's movement distance.

[0008] Multiple buoyancy compensation units are evenly distributed between the underwater energy storage unit and the magnetohydrodynamic bearing, and one side of each of the multiple buoyancy compensation units is fixedly connected to the periphery of the magnetohydrodynamic bearing; when the underwater explosion generates a shock wave that causes the shell unit to break and completely detach from the underwater energy storage unit, the multiple buoyancy compensation units provide buoyancy to lift the underwater energy storage unit to the surface.

[0009] In one embodiment, the housing unit includes:

[0010] A substrate layer, which covers the exterior of the energy storage chamber;

[0011] An interface layer, the interface layer covering the outside of the substrate layer; and

[0012] An armor layer is provided, which covers the outside of the interface layer, and the bottom of the outer wall of the armor layer is fixedly connected to the top of the magnetohydrodynamic bearing and the top of the support; a spiral groove of a preset depth is provided on the outer surface of the armor layer to guide the shock wave generated by the underwater explosion to spread tangentially.

[0013] In one embodiment, the top of the bracket is fixedly connected to the bottom of the armor layer, and the bottom of the bracket is spherical and hinged to a spherical hinge support fixed to the seabed base.

[0014] In one embodiment, the magnetohydrodynamic bearing comprises:

[0015] A first bearing portion, the top of which is fixedly connected to the bottom of the housing unit;

[0016] A second bearing section is mirror-symmetrical to and spaced apart from the first bearing section. The bottom of the second bearing section is fixedly connected to the top of the magnetohydrodynamic elastic energy dissipation module. Magnetohydrodynamic fluid is disposed within both the first and second bearing sections.

[0017] Multiple first springs are evenly distributed and connected between the first bearing portion and the second bearing portion. Under normal circumstances, the multiple first springs are in a naturally extended state. When the shock wave generated by an underwater explosion causes a change in the magnetic field strength near the system, the magnetic effect of the external magnetic field causes the first bearing portion and the second bearing portion to exhibit the characteristics of like poles repelling or unlike poles attracting, so as to stretch or compress the multiple first springs to control the system displacement change.

[0018] In one embodiment, both the first bearing portion and the second bearing portion include:

[0019] The bearing housing is mirror-symmetrical to the bearing housing of the first bearing part and the bearing housing of the second bearing part and is fixedly connected to the bottom of the housing unit and the top of the magnetohydrodynamic energy dissipation module, respectively. A bearing magnetic field strength sensor is fixedly connected to the inner wall of the bearing housing.

[0020] A bearing permanent magnet is disposed inside the bearing housing and is arranged along the inner sidewall of the bearing housing, with its two ends respectively attached to the inner top wall and inner bottom wall of the bearing housing;

[0021] A bearing magnetofluid, wherein the bearing magnetofluid is disposed inside the bearing housing and located within the space formed by the bearing permanent magnet, the inner top wall, and the inner bottom wall of the bearing housing; and

[0022] A bearing electromagnetic coil is arranged in a ring between the inner side wall of the bearing housing and the outer wall of the bearing permanent magnet.

[0023] In one embodiment, the magnetohydrodynamic energy dissipation module includes:

[0024] The energy-consuming module housing is embedded in the seabed base, and the top of the energy-consuming module housing is fixedly connected to the bottom of the first bearing part. An energy-consuming module magnetic field strength sensor is fixedly connected to the inner wall of the energy-consuming module housing.

[0025] A magnetofluid for the energy-consuming module, wherein the magnetofluid for the energy-consuming module is disposed inside the housing of the energy-consuming module;

[0026] An electromagnetic coil for an energy-consuming module, the electromagnetic coil being laid along the inner wall of the energy-consuming module housing; and

[0027] Multiple second springs are evenly distributed inside the shell of the energy-consuming module, and the two ends of the multiple second springs are fixedly connected to the top inner wall of the shell of the energy-consuming module and the upper surface of the seabed base, respectively. When the shock wave generated by the underwater explosion causes the magnetic field strength near the system to change, the magnetic field strength is adjusted by energizing the electromagnetic coil of the energy-consuming module to change the viscous resistance of the magnetofluid of the energy-consuming module to consume the energy of the shock wave.

[0028] In one embodiment, the support unit further includes:

[0029] Multiple elastic buffer modules are evenly distributed along the edge of the seabed base and in contact with the bottom edge of the energy dissipation module shell. When the energy dissipation module shell is subjected to a shock wave, under the impact force of the shock wave, the energy dissipation module shell squeezes the elastic buffer modules and moves toward the seabed base to compress the multiple second springs to dissipate the shock wave energy.

[0030] In one embodiment, each of the elastic buffer modules includes:

[0031] A support shaft is fixed in a base groove opened at the edge of the seabed base, and the top of the support shaft is embedded in a socket opened at the bottom edge of the energy consumption module housing;

[0032] A third spring, wherein the third spring is sleeved outside the support shaft; and

[0033] A lifting plate is disposed in the base groove. The center of the lifting plate passes through the support shaft and is located on the third spring. The two sides of the lifting plate are in sliding contact with the two sides of the base groove, and the top of the lifting plate is in contact with the bottom edge of the energy-consuming module housing. Under normal circumstances, the third spring is in a naturally extended state. When the energy-consuming module housing is subjected to a shock wave, under the action of the shock wave, the energy-consuming module housing squeezes the lifting plate and compresses the third spring, causing the entire energy-consuming module housing to move towards the bottom of the base groove.

[0034] In one embodiment, each of the elastic buffer modules further includes:

[0035] A baffle is disposed between the third spring and the support shaft and sleeved on the support shaft, and the baffle is spaced apart from the lifting plate to limit the downward movement distance of the lifting plate.

[0036] In one embodiment, each of the plurality of buoyancy compensation units includes:

[0037] A gas supply chamber, which contains high-pressure gas, and one side of the gas supply chamber is fixedly connected to the magnetohydrodynamic bearing;

[0038] The release chamber is fixedly connected to the air supply chamber and communicates with the air supply chamber through an electromagnetic valve. An airbag is installed inside the release chamber, and the airbag is supplied with air through the air supply chamber.

[0039] A first pressure sensor, disposed outside the housing unit, is used to monitor the real-time pressure experienced by the housing unit underwater; and

[0040] The second pressure sensor is disposed on the upper part of the outer shell of the release chamber and is communicatively connected to the first pressure sensor. When the second pressure sensor receives a real-time pressure greater than the pressure threshold detected by the first pressure sensor, and the real-time pressure causes the shell unit to break and detach from the underwater energy storage unit, the electromagnetic valve and the outer cover of the release chamber open, supplying air to the airbag through the air supply chamber, and releasing the airbag after it is full to provide buoyancy to lift the underwater energy storage unit to the surface of the sea.

[0041] The above-described solution of the present invention has at least the following beneficial effects:

[0042] (1) By covering the outer shell unit of the underwater energy storage unit with a composite structure, the explosion resistance of the energy storage unit can be improved; at the same time, a spiral groove is opened on the outer wall of the outermost structure of the shell unit to guide the shock wave generated by the underwater explosion, thereby further improving the explosion resistance.

[0043] (2) The underwater energy storage unit uses a solid lithium metal energy storage battery and is combined with a ceramic-based fireproof energy storage chamber and a phase change temperature control layer, which can avoid the chain reaction of thermal runaway in the energy storage unit and improve the reliability and safety of energy storage.

[0044] (3) The support unit uses the properties of like poles repelling and unlike poles attracting to control the system deformation displacement of the magnetic fluid elastic bearing, and then uses the compression and stretching deformation of the second spring in the magnetic fluid elastic energy dissipation module and the viscous resistance of the magnetic fluid in the energy dissipation module to further control the system displacement, so as to consume the shock wave energy and ensure the safety of the energy storage unit.

[0045] (4) When the shell unit is damaged and detached from the underwater energy storage unit, the buoyancy compensation unit can release the airbag and provide buoyancy through the airbag to lift the water energy storage unit to the surface, so as to avoid the underwater energy storage unit sinking to the bottom and causing secondary damage. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of the subsea energy storage system provided in an embodiment of the present invention;

[0047] Figure 2 This is a cross-sectional structural schematic diagram of an optional embodiment of the subsea energy storage system provided by the present invention;

[0048] Figure 3 This is a schematic diagram of the distribution of energy storage batteries within an energy storage chamber according to an optional embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the overall structure of the phase change temperature control layer provided in an optional embodiment of the present invention;

[0050] Figure 5This is a schematic diagram of the overall structure of a magnetohydrodynamic bearing provided in an optional embodiment of the present invention;

[0051] Figure 6 This is a schematic cross-sectional view of a magnetohydrodynamic bearing provided in an optional embodiment of the present invention;

[0052] Figure 7 This is a schematic diagram of the overall structure of the buoyancy compensation unit provided in an optional embodiment of the present invention;

[0053] Figure 8 This is a cross-sectional structural schematic diagram of a buoyancy compensation unit provided in an optional embodiment of the present invention;

[0054] Figure 9 This is a schematic diagram of the overall structure of a magnetohydrodynamic elastic energy dissipation model provided in an optional embodiment of the present invention;

[0055] Figure 10 This is a schematic diagram of the connection between the bracket and the spherical hinge support provided in an optional embodiment of the present invention;

[0056] Figure 11 This is a schematic diagram of the connection between the elastic buffer module and the seabed base provided in an optional embodiment of the present invention;

[0057] Figure 12 This is a schematic diagram of the overall structure of an elastic buffer module provided in an optional embodiment of the present invention.

[0058] Explanation of icon numbers:

[0059] 1. Shell unit; 101. Armor layer; 102. Interface layer; 103. Substrate layer; 2. Energy storage chamber; 201. Chamber shell; 202. Temperature sensor; 3. Energy storage battery; 4. Phase change temperature control layer; 401. Graphene outer layer; 402. Phase change material inner layer; 5. Connecting post; 6. Magnetohydrodynamic bearing; 601. Bearing electromagnetic coil; 602. Bearing permanent magnet; 603. Bearing magnetohydrodynamics; 604. Bearing magnetic field strength sensor; 605. Bearing shell; 606. First spring; 7. Buoyancy compensation unit; 701. Airbag; 702. Air supply 703. Solenoid valve; 704. Release chamber; 705. First pressure sensor; 706. Second pressure sensor; 8. Magnetohydrodynamic elastic energy dissipation module; 801. Energy dissipation module housing; 802. Energy dissipation module magnetohydrodynamic; 803. Second spring; 804. Energy dissipation module electromagnetic coil; 805. Energy dissipation module magnetic field strength sensor; 9. Bracket; 10. Spherical hinge support; 11. Seabed base; 110. Base groove; 12. Elastic buffer module; 1201. Lifting plate; 1202. Baffle; 1203. Third spring; 1204. Support shaft. Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a subsea energy storage system for resisting underwater explosions, which may include an underwater energy storage unit, a shell unit 1, a support unit, and multiple buoyancy compensation units 7. The underwater energy storage unit includes multiple spaced-apart energy storage chambers 2, and multiple energy storage batteries 3 are evenly distributed within each energy storage chamber 2. The shell unit 1 covers the exterior of the underwater energy storage unit to resist the shock wave generated by an underwater explosion. The support unit includes a bracket 9, a magnetohydrodynamic (MHD) elastic bearing 6, and a MHD elastic energy dissipation module 8. The MHD elastic energy dissipation module 8 is disposed on a seabed base 11. The two ends of the MHD elastic bearing 6 are fixedly connected to the top of the MHD elastic energy dissipation module 8 and the bottom of the shell unit 1, respectively. The bottom of the bracket 9 is evenly distributed along the edge of the seabed base 11 and located around the MHD elastic energy dissipation module 8. The top of the bracket 9 is connected to the bottom of the shell unit 1. The system is fixedly connected; when the shock wave generated by the underwater explosion causes the system to move, the magnetic field strength in the magnetohydrodynamic bearing 6 and the magnetohydrodynamic energy dissipation module 8 is changed sequentially to move the magnetohydrodynamic bearing 6 and the magnetohydrodynamic energy dissipation module 8, thereby controlling the system's movement distance; multiple buoyancy compensation units 7 are evenly distributed between the underwater energy storage unit and the magnetohydrodynamic bearing 6, and one side of each of the multiple buoyancy compensation units 7 is fixedly connected to the periphery of the magnetohydrodynamic bearing 6; when the shock wave generated by the underwater explosion causes the shell unit 1 to break and completely detach from the underwater energy storage unit, the multiple buoyancy compensation units 7 provide buoyancy to lift the underwater energy storage unit to the surface.

[0066] In this embodiment, the underwater energy storage unit, the magnetohydrodynamic (MHD) bearing 6, the MHD energy dissipation module 8, and the seabed base 11 are arranged sequentially from top to bottom. The two ends of the support 9 are fixedly connected to the bottom of the shell unit 1 encasing the underwater energy storage unit and hinged to the top of the seabed base 11 to buffer the impact of underwater shock waves. The support 9 can be a pillar, and multiple supports are arranged symmetrically between the seabed base 11 and the underwater energy storage unit. This ensures the stability of the support and also forms a frame with the underwater energy storage unit and the seabed base 11 to accommodate the buoyancy compensation unit 7, the MHD bearing 6, and the MHD energy dissipation module 8. In the event of an underwater explosion, the MHD bearing 6 can control small system displacements to dissipate shock wave energy. It should be noted that the impact of normal ocean wave fluctuations on the energy storage unit is negligible compared to the shock wave generated by an underwater explosion.

[0067] like Figure 2 As shown, the shell unit 1 is a composite multi-layer structure, with multiple energy storage chambers 2 evenly distributed within it. The inner wall of the shell unit 1 is tightly fitted to the energy storage chambers 2 to prevent swaying. The size and shape of the shell unit 1 are not specifically limited, as long as they are compatible with the shape and size of the energy storage chambers 2. In a feasible example, both the shell unit 1 and the energy storage chambers 2 can be cylindrical to mitigate underwater impact.

[0068] like Figure 3 As shown, the energy storage chamber 2 can be a ceramic-based fireproof chamber, and the energy storage battery 3 can be a solid-state lithium metal battery. Multiple energy storage batteries 3 are encapsulated in an array within the energy storage chamber 2. The multiple energy storage chambers 2 are spaced apart to form an isolation system, thereby preventing a chain reaction caused by thermal runaway of an energy storage battery 3 placed in any one energy storage chamber 2, which could damage the energy storage batteries in other energy storage chambers. Preferably, the inner wall of the energy storage chamber 2 can be coated with a high-temperature resistant ceramic coating with a temperature resistance greater than or equal to 1500°C, further protecting the internal energy storage batteries 3.

[0069] Preferably, each energy storage chamber 2 may include a chamber housing 201 and a temperature sensor 202 disposed within the chamber housing 201. The chamber housing 201 is a ceramic-based housing, and the temperature sensor 202 is used to monitor the temperature of the energy storage battery 3 encapsulated within the energy storage chamber 2 in real time, so as to identify faulty batteries and thus ensure the safety of the energy storage battery array in each energy storage chamber 2.

[0070] Here, both the magnetohydrodynamic (MHD) elastic bearing 6 and the MHD elastic energy dissipation module 8 are equipped with magnetohydrodynamics. When the shock wave generated by the underwater explosion causes a change in the magnetic field strength near the system, the MHD elastic bearing 6 and the MHD elastic energy dissipation module 8 can be energized. On the one hand, this changes the viscous resistance of the magnetohydrodynamic energy dissipation module 8, thereby dissipating the energy of the shock wave. On the other hand, it changes the displacement of the MHD elastic bearing 6, thus controlling the displacement distance of the system caused by the shock wave, thereby dissipating the energy of the shock wave and reducing its impact on the energy storage system. At the same time, under the action of the shock wave, the MHD elastic energy dissipation module 8 will move to compress the spring inside, thereby dissipating the energy of the shock wave and further mitigating its impact on the energy storage system.

[0071] Here, multiple buoyancy compensation units 7 are distributed below the underwater energy storage unit and fixedly connected to the magnetohydrodynamic bearing 6. When the shock wave is too large, causing the outer shell unit 1 of the underwater energy storage unit to break and completely detach from the energy storage unit, the bracket 9 connected to the shell unit 1 and the magnetohydrodynamic bearing 6 will both detach from the shell unit 1 and sink. At this time, the buoyancy compensation units 7 provide buoyancy to the underwater energy storage unit to lift multiple energy storage chambers 2 to the surface, preventing the energy storage chambers 2 from sinking to the bottom and being damaged by water. Here, the buoyancy compensation units 7 can correspond one-to-one with the energy storage chambers 2, and of course, the number of buoyancy compensation units 7 can also be more than the number of energy storage chambers 2.

[0072] The aforementioned energy storage system integrates energy storage and multiple protections, improving the explosion resistance, safety, and reliability of energy storage systems in the fields of military defense and marine energy storage. It also solves key problems such as insufficient impact resistance design, high risk of battery thermal runaway, and lack of emergency protection in traditional energy storage devices.

[0073] like Figure 2 As shown, a phase change temperature control layer 4 is provided between two adjacent energy storage chambers 2 to absorb the heat generated by the underwater explosion or the heat generated by the short circuit of the energy storage battery 3 in the energy storage chamber 2 through phase change.

[0074] Here, the phase change temperature control layer 4 can be an isolation layer made of graphene phase change material. The phase change temperature control layer 4 is disposed between two adjacent energy storage chambers 2, and the energy storage chambers 2 located at both ends of the shell unit 1 and the inner wall of the end of the shell unit are also provided with phase change temperature control layer 4, so as to achieve thermal isolation and energy buffering through phase change, and further ensure the safety of the energy storage battery 3.

[0075] like Figure 4 As shown, preferably, the phase change temperature control layer may include a graphene outer layer 401 and a phase change material inner layer 402 encapsulated within the graphene outer layer 401. The graphene outer layer 401 is tightly fitted to the inner wall of the shell unit 1. Due to its high thermal conductivity, the graphene outer layer 401 can quickly transfer the energy generated by the explosion or the instantaneous high temperature generated by a short circuit in a certain energy storage battery to the phase change material inner layer 402. The phase change material inner layer 402 absorbs the energy generated by the explosion or the instantaneous high temperature generated when the energy storage battery 3 is short-circuited through phase change, thereby ensuring the safety of the underwater energy storage unit. Here, the shape and size of the phase change temperature control layer 4 are not specifically limited; it only needs to be compatible with the shell unit 1 and the energy storage chamber 2, and ensure that it can fully absorb the explosion energy or high temperature heat.

[0076] like Figure 2 As shown, in an optional embodiment of the present invention, the housing unit 1 may include a base layer 103, an interface layer 102, and an armor layer 101. The base layer 103 covers the exterior of the energy storage chamber 2; the interface layer 102 covers the exterior of the base layer 103; and the armor layer 101 covers the exterior of the interface layer 102, with the bottom of the outer wall of the armor layer 101 fixedly connected to the top of the magnetohydrodynamic bearing 6 and the top of the support 9.

[0077] In this embodiment, the substrate layer 103, the interface layer 102, and the armor layer 101 are arranged sequentially from the inside to the outside, and the three are closely attached to each other. The inner wall of the substrate layer 103 is closely attached to the outer wall of the energy storage chamber 2 and the outer wall of the phase change temperature control layer 4 to ensure the stability of the energy storage chamber 2.

[0078] Here, the armor layer 101 can be a high-strength ceramic armor layer or a nanocomposite material armor layer to guide the underwater explosion shock wave to diffuse tangentially, reduce the peak normal pressure generated by the explosion, and prevent the shell from being eroded and worn by the external environment; the interface layer 102 can be a titanium-based transition coating or a pressure-resistant epoxy structural adhesive bonding layer, which mainly plays the role of transferring stress, preventing crack propagation, buffering stress, sealing and protecting, and improving the bonding strength between the titanium alloy substrate layer 103 and the armor layer 101; the substrate layer 103 can be made of titanium alloy as the main material to play the role of bonding, supporting reinforcement and improving the structural impact resistance, so that the shell unit 1 has a certain degree of integrity and stability.

[0079] In an optional embodiment of the present invention, a spiral groove of a preset depth is provided on the outer surface of the armor layer 101 to guide the shock wave generated by the underwater explosion to diffuse tangentially, reduce the peak normal pressure generated by the explosion, and thus resist the load of the underwater explosion to protect the underwater energy storage unit.

[0080] Preferably, the depth of the spiral groove can be 1 / 5 to 1 / 3 of the thickness of the unit housing 1, and the spacing between the spiral grooves is dynamically adjusted according to the curvature of the housing 1 to optimize the shock wave diffusion path.

[0081] See Figure 2 , Figure 9 and Figure 10 In an optional embodiment of the present invention, the top of the bracket 9 is fixedly connected to the bottom of the armor layer 101, the bottom of the bracket 9 is spherical, and the bottom of the bracket 9 is hinged to the spherical hinge support 10 fixed on the seabed base 11.

[0082] Here, spherical hinge supports 10 are evenly and symmetrically distributed on the seabed base 11 and hinged to the bottom of the support 9. By hinged to the bottom of the support 9 and the seabed base 11, the reliability of the support 9 can be ensured. On the other hand, when encountering an underwater explosion shock wave, the support 9 can drive the underwater energy storage unit to move slightly in the direction of the shock wave to dissipate the shock wave energy and ensure the safety of the underwater energy storage unit.

[0083] See Figure 1 , Figure 5 and Figure 6In an optional embodiment of the present invention, the magnetohydrodynamic bearing 6 may include a first bearing portion, a second bearing portion, and a plurality of first springs 606. The top of the first bearing portion is fixedly connected to the bottom of the housing unit 1; the second bearing portion is mirror-symmetrical to the first bearing portion and spaced apart, and the bottom of the second bearing portion is fixedly connected to the top of the magnetohydrodynamic energy dissipation module 8; both the first and second bearing portions contain magnetohydrodynamic fluid; the plurality of first springs 606 are evenly distributed and connected between the first and second bearing portions; under normal conditions (without shock waves), the plurality of first springs 606 are in a naturally extended state under the support of the bracket 9; when a shock wave generated by an underwater explosion causes a change in the magnetic field strength near the system, the magnetic effect of the external magnetic field causes the first and second bearing portions to exhibit like-pole repulsion or unlike-pole attraction, thereby stretching or compressing the plurality of first springs 606 to control the system displacement change.

[0084] Here, both the first bearing section and the second bearing section have a similar U-shaped structure, and the upper and lower parts of the U-shaped structure can be cylinders; the U-shaped structure of the first bearing section is inverted and is mirror-symmetrical with the U-shaped structure of the second bearing section, so as to arrange and connect multiple first springs 606 evenly between the two bearing sections.

[0085] like Figure 6 As shown, in an optional embodiment of the present invention, both the first bearing portion and the second bearing portion may include a bearing housing 605, a bearing permanent magnet 602, a bearing magnetofluid 603, and a bearing electromagnetic coil 601.

[0086] The bearing housings 605 of the first bearing section and the second bearing section are mirror-symmetrical and are fixedly connected to the bottom of the housing unit 1 and the top of the magnetohydrodynamic energy dissipation module 8, respectively.

[0087] Preferably, the top of the bearing housing 605 of the first bearing section is fixedly connected to the bottom of the armor layer 101 of the housing unit 1 via a connecting post 5; the bottom of the bearing housing 605 of the second bearing section is also fixedly connected to the top of the magnetohydrodynamic energy dissipation module 8 via a connecting post 5; a plurality of first springs 606 are distributed between the two bearing housings 605, and the two ends of the first springs 606 are fixedly connected to the lower edge of the top surface of the bearing housing 605 of the first bearing section and the upper edge of the bottom surface of the bearing housing 605 of the second bearing section, respectively. A bearing magnetic field strength sensor 604 is fixedly connected to the inner wall of the bearing housing 605 to monitor the magnetic field strength near the magnetohydrodynamic bearing 6 in real time.

[0088] The bearing permanent magnet 602 is disposed inside the bearing housing 605. The bearing permanent magnet 602 is preferably arranged in a ring shape and is disposed along the inner side wall of the bearing housing 605. The two ends of the bearing permanent magnet 602 are respectively attached to the inner top wall and the inner bottom wall of the bearing housing 605.

[0089] A bearing electromagnetic coil 601 is arranged in a ring between the inner side wall of the bearing housing 605 and the outer wall of the bearing permanent magnet 602, and multiple bearing electromagnetic coils 601 are evenly arranged in a ring around the outside of the bearing permanent magnet 602. A bearing magnetofluid 603 is disposed inside the bearing housing 605 and located within the space formed by the bearing permanent magnet 602, the inner top wall, and the inner bottom wall of the bearing housing 605, and the bearing magnetofluid in the bearing housing of the first bearing part is mirror-symmetrical to the bearing magnetofluid in the bearing housing of the second bearing part.

[0090] When the bearing magnetic field strength sensor 604 detects a change in magnetic field strength caused by the underwater explosion shock wave, it can energize the bearing electromagnetic coil 601, and in conjunction with the bearing permanent magnet 602, generate and change the magnetic field strength in the first and second bearing sections. Since the bearing housing 605 contains a bearing magnetohydrodynamic fluid 603, under the magnetic effect of the applied magnetic field, the bearing magnetohydrodynamic fluid 603 in the two opposing bearing sections of the magnetohydrodynamic bearing 6 can form two opposing magnetic poles, and these two magnetic poles can exhibit the characteristics of like poles repelling or unlike poles attracting depending on the direction of the current. When the two bearing sections repel each other, multiple first springs 606 are stretched; when the two bearing sections attract each other, multiple first springs 606 are compressed. When the multiple first springs 606 are stretched or compressed, the displacement of the magnetohydrodynamic bearing 6 changes. At this time, in conjunction with the small-amplitude ball joint movement of the bracket 9, the amount of system displacement change caused by the shock wave is controlled to consume the shock wave energy and reduce the impact force of the shock wave on the system.

[0091] For example, when part of the shock wave is guided tangentially by the spiral groove, the underwater energy storage unit will move downwards as a whole. At this time, energizing the bearing electromagnetic coil 601 changes the magnetic field strength, causing the first bearing part and the second bearing part to repel each other, thereby stretching the first spring 606 to alleviate the downward movement of the underwater energy storage unit. Simultaneously, the shock wave will also cause the underwater energy storage unit to shift horizontally. At this time, the support 9 will drive the underwater energy storage unit to move slightly in the direction of the shock wave to dissipate the shock wave energy. After the shock wave energy dissipates, energizing the bearing electromagnetic coil 601 changes the magnetic field strength, causing the first bearing part and the second bearing part to attract each other, thereby compressing the stretched first spring 606. Combined with the elastic restoring force of the first spring 606, the energy storage system and the magnetohydrodynamic bearing 6 return to their original positions.

[0092] See Figure 2 and Figure 9 In an optional embodiment of the present invention, the magnetohydrodynamic energy dissipation module 8 may include an energy dissipation module housing 801, an energy dissipation module magnetohydrodynamic fluid 802, an energy dissipation module electromagnetic coil 804, and a plurality of second springs 803.

[0093] The energy dissipation module housing 801 is embedded in the seabed base 11, and the top of the energy dissipation module housing 801 is fixedly connected to the bottom of the first bearing part. An energy dissipation module magnetic field strength sensor 805 is fixedly connected to the inner wall of the energy dissipation module housing 801 to monitor the magnetic field strength near the magnetohydrodynamic energy dissipation module 8 in real time.

[0094] Preferably, the edge of the seabed base 11 has an annular base groove 110. The upper part of the energy-consuming module shell 801 can be configured as a hemispherical shell structure, and the lower part can be configured as a cylindrical structure. The diameter of the cylindrical structure is the same as the diameter of the hemispherical shell structure, and the two are joined together to form a complete energy-consuming module shell. Here, the cylindrical structure of the energy-consuming module shell 801 can be completely covered on the seabed base 11, and the cylindrical structure is partially embedded in the base groove 110. Here, the width of the base groove 110 matches the thickness of the cylindrical structure, so that the energy-consuming module shell 801 can be stably supported on the seabed base 11, while preventing the energy-consuming module shell 801 from moving to the bottom of the base groove 110 under its own weight. The top of the hemispherical structure of the energy-consuming module shell 801 can be fixedly connected to the bottom of the bearing shell 605 of the second bearing part through the connecting column 5. Preferably, the energy-consuming module shell 801 can be a titanium alloy shell.

[0095] The energy-consuming module magnetofluid 802 is disposed inside the energy-consuming module housing 801; the energy-consuming module electromagnetic coil 804 is laid along the inner wall of the energy-consuming module housing 801, and multiple energy-consuming module electromagnetic coils 804 are evenly distributed in a ring from top to bottom of the energy-consuming module housing 801; multiple second springs 803 are evenly distributed inside the energy-consuming module housing 801, and the two ends of the multiple second springs 803 are respectively fixedly connected to the top inner wall of the energy-consuming module housing 801 and the upper surface of the seabed base 11.

[0096] Under normal circumstances, the multiple first springs 803 are in a naturally extended state. When the shock wave generated by an underwater explosion causes excessive impact on the energy dissipation module housing 801, the energy dissipation module housing 801 moves towards the bottom of the base groove 110 under the impact of the shock wave, and presses down the second springs 803 during the movement to dissipate the shock wave energy. At the same time as the underwater explosion generates a shock wave, the energy dissipation module magnetic field strength sensor 805 also detects the change in magnetic field strength near the system caused by the shock wave. At this time, by controlling the magnitude of the current flowing through the energy dissipation module electromagnetic coil 804, the generated magnetic field strength is adjusted and the viscous resistance of the energy dissipation module magnetofluid 802 is changed (the larger the current, the stronger the magnetic field, and the denser the magnetic particles of the energy dissipation module magnetofluid 802, thus increasing its own viscous resistance), to further dissipate the shock wave energy, reduce the impact of the shock wave on the energy storage system, and further protect the energy storage system. After the shock wave energy dissipates, the elastic restoring force of the multiple second springs 803 causes the energy storage system and the magnetofluid elastic energy dissipation module 8 to return to their original positions.

[0097] like Figure 11 As shown, in an optional embodiment of the present invention, the support unit may further include multiple elastic buffer modules 12. The multiple elastic buffer modules 12 are evenly distributed along the edge of the seabed base 11. Specifically, the multiple elastic buffer modules 12 are evenly distributed and fixed in the base groove 110; and the tops of the multiple elastic buffer modules 12 may contact the bottom edge of the cylindrical structure in the energy dissipation module housing 801. When the energy dissipation module housing 801 is subjected to a shock wave, the energy dissipation module housing 801 is compressed by the impact force of the shock wave, causing the entire energy dissipation module housing 801 to move towards the seabed base 11. During this movement, the inner wall of the top of the energy dissipation module housing 801 compresses multiple second springs 803 to dissipate the shock wave energy.

[0098] like Figure 12 As shown, in an optional embodiment of the present invention, each elastic buffer module 12 may include a support shaft 1204, a third spring 1203, and a lifting plate 1201. The support shaft 1204 is fixed in a base groove 110 formed at the edge of the seabed base 11, and the top of the support shaft 1204 is embedded in a socket formed at the bottom edge of the energy-consuming module housing 801. Here, the socket can be arranged to extend through the entire cylindrical structure along its axial direction, with the top portion of the support shaft 1204 embedded in the socket. The third spring 1203 is sleeved on the outside of the support shaft 1204. The lifting plate 1201 is disposed in the base groove 110, with its center passing through the support shaft 1204 and located on the third spring 1203. The two sides of the lifting plate 1201 slide in contact with the two sides of the base groove 110, and the top of the lifting plate 1201 contacts the bottom edge of the energy-consuming module housing 801.

[0099] Here, the width or length of the lifting plate 1201 matches the width of the base groove 110, so that under normal circumstances, the lifting plate 1201 cooperates with the base groove 110 to support the energy-consuming module housing 801 in part of the depth of the base groove 110, preventing the energy-consuming module housing 801 from continuing to descend to the bottom of the base groove 110 under its own weight. At the same time, the size of the opening at the center of the lifting plate 1201 matches the outer diameter of the support shaft 1204, further ensuring the stability of the lifting plate 1201 support, and further preventing the energy-consuming module housing 801 from continuing to descend to the bottom of the base groove 110 under its own weight.

[0100] Under normal circumstances, the third spring 1203 is in a naturally extended state. When the energy dissipation module housing 801 is subjected to a shock wave, and the impact force of the shock wave is much greater than the weight of the energy dissipation module housing 801 itself, the energy dissipation module housing 801 is squeezed by the impact force of the shock wave, pressing the lifting plate 1201 and compressing the third spring 1203, causing the entire energy dissipation module housing 801 to move towards the bottom of the base groove 110, thereby consuming the energy of the shock wave.

[0101] In an optional embodiment of the present invention, each elastic buffer module 12 may further include a baffle 1202. The baffle 1202 is disposed between the third spring 1203 and the support shaft 1204 and sleeved on the support shaft 1204, and the baffle 1202 is spaced apart from the lifting plate 1201 to limit the downward movement distance of the lifting plate 1201.

[0102] In this embodiment, the baffle 1202 can be an annular structure and sleeved on the outside of the support shaft 1204 to limit the downward movement distance of the lifting plate 1201, thereby controlling the magnitude of the downward displacement of the energy dissipation module housing 801; when the impact on the energy dissipation module housing 801 is too great, the baffle 1202 will be crushed so that the energy dissipation module housing 801 can continue to move downward to further compress the second spring 803 and the third spring 1203, thereby further consuming the shock wave energy.

[0103] like Figure 7 and Figure 8 As shown, in an optional embodiment of the present invention, each of the plurality of buoyancy compensation units 7 may include an air supply chamber 702, a release chamber 704, a first pressure sensor 705, and a second pressure sensor 706. The release chamber 704 and the air supply chamber 702 are stacked and have the same shape, both being cylindrical. The air supply chamber 702 contains high-pressure gas, including but not limited to helium. One side of the air supply chamber 702 is fixedly connected to the magnetohydrodynamic bearing 6. Preferably, one side of the air supply chamber 702 can be fixedly connected to the connecting column 5 at the top of the first bearing via a connecting support; alternatively, the side of the release chamber 704 can also be fixedly connected to the connecting column 5.

[0104] Here, the release chamber 704 is fixedly connected to the air supply chamber 702 and communicates with the air supply chamber 702 through the solenoid valve 703. An airbag 701 is installed inside the release chamber 704, and the airbag 701 is supplied with air through the air supply chamber 702. The first pressure sensor 705 is installed outside the shell unit 1 and is used to monitor the real-time pressure of the shell unit 1 underwater. The second pressure sensor 706 is installed on the upper part of the shell of the release chamber 704 and is communicatively connected to the first pressure sensor 705.

[0105] Here, the second pressure sensor 706 and the release chamber 704 can form a pressure sensing trigger device. When the second pressure sensor 706 receives a real-time pressure greater than the pressure threshold monitored by the first pressure sensor 705, and the real-time pressure causes the shell unit 1 to break and detach from the underwater energy storage unit, the solenoid valve 703 and the outer cover of the release chamber 704 are both opened. The air supply chamber 702 supplies air to the airbag 701, and the airbag 701 is released after it is fully inflated to provide buoyancy to lift the underwater energy storage unit to the surface of the sea. Specifically, after the airbag 701 is fully inflated and released, it will lift the energy storage chamber 2 to move towards the sea surface, thereby avoiding secondary damage to the energy storage chamber 2 after water enters it.

[0106] It should be understood that when the impact pressure of the shock wave is large enough and exceeds the preset pressure threshold, the shell unit 1 will be damaged and separated from the underwater energy storage unit under the impact of the shock wave. At the same time, when the real-time pressure (impact pressure of the shock wave) monitored by the first pressure sensor 705 is transmitted to the second pressure sensor 706, it will trigger the opening of the solenoid valve 703 and the outer cover of the release chamber 704.

[0107] Preferably, the airbags 701 can correspond one-to-one with the energy storage chambers 2 in the underwater energy storage unit, and the number of airbags 701 can also be greater than the number of energy storage chambers 2, so that after the shell unit is damaged to the point of complete detachment, each energy storage chamber 2 can be supported by the airbags 701. Here, the airbags 701 expand significantly after inflation, and after they are fully released, all the inflated airbags 701 can support the energy storage chambers 2 in the underwater energy storage unit over a large area. Preferably, the buoyancy compensation of the airbags 701 can be greater than or equal to 120% of the total weight of the energy storage chambers 2, so as to smoothly support each energy storage chamber 2.

[0108] The subsea energy storage system provided by the above embodiments of the present invention, which is designed to withstand underwater explosions, can resist the shock wave through the composite structure shell unit 1 when it encounters an underwater explosion shock wave. The spiral grooves on the outer surface of the armor layer 101 guide the tangential diffusion of the explosion shock wave, thereby reducing the normal pressure, consuming the shock wave energy, and mitigating the impact of the shock wave on the underwater energy storage unit. At the same time, the heat generated by the explosion causes the graphene phase change material layer in the phase change temperature control layer 4 to undergo a phase change, and absorbs the explosion energy during the phase change process, thereby protecting the energy storage battery 3.

[0109] When the shock wave generated by the underwater explosion causes a change in the magnetic field strength near the energy storage system, the shell adjusts the magnetic field strength by energizing the bearing electromagnetic coil 601 in the magnetohydrodynamic bearing 6 and the energy dissipation module electromagnetic coil 804 in the magnetohydrodynamic energy dissipation module 8. Here, the characteristics of like charges repelling or unlike charges attracting generated by the energization of the bearing electromagnetic coil 601 in the two bearing parts of the magnetohydrodynamic bearing 6 (compressing or stretching the first spring 606), combined with the ball joint connection of the bracket 9, can be used to control the deformation and displacement of the energy storage system to mitigate the impact of the shock wave on the energy storage system. Furthermore, the compression or stretching deformation of the second spring 803 in the magnetohydrodynamic energy dissipation module 8 and the viscous resistance of the magnetohydrodynamic module 802 can be used to further control the displacement of the energy storage system and dissipate the shock wave energy to ensure the safety of the energy storage system.

[0110] When the impact pressure of the shock wave generated by the underwater explosion is too large, causing the shell unit 1 to break and completely detach from the underwater energy storage unit, the real-time pressure monitored by the first pressure sensor 705 in the buoyancy compensation unit 7 is too large and exceeds the pressure threshold. When the first pressure sensor 705 transmits the real-time pressure to the second pressure sensor 706, it will trigger the opening of the solenoid valve 703 and the outer cover of the release chamber 704. The gas supply chamber 702 delivers gas to the airbag 701 through the solenoid valve 703, and releases the airbag 701 through the release chamber 704 to generate buoyancy, so as to lift the energy storage chamber 2 to float to the surface of the water and prevent the energy storage chamber 2 from sinking to the bottom and being damaged by water.

[0111] The aforementioned energy storage system, energy storage chamber, and multiple protection modules are integrated into one unit, which can significantly improve the explosion resistance of the underwater energy storage system, ensure the safety of the seabed energy storage module when subjected to underwater explosion, guarantee the safety of deep-sea energy storage and the reliability of military defense, and solve key problems such as insufficient impact resistance design, high risk of battery thermal runaway, and lack of emergency protection in traditional technologies.

[0112] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A subsea energy storage system resistant to underwater explosions, characterized in that, include: The underwater energy storage unit includes multiple spaced-apart energy storage chambers, each of which contains multiple energy storage batteries evenly distributed, and a phase change temperature control layer is provided between two adjacent energy storage chambers. A shell unit is used to enclose the underwater energy storage unit to protect it from the shock wave generated by an underwater explosion. The support unit includes a bracket, a magnetohydrodynamic (MHD) elastic bearing, and a MHD energy dissipation module. The MHD energy dissipation module is mounted on a seabed base. The two ends of the MHD elastic bearing are fixedly connected to the top of the MHD energy dissipation module and the bottom of the shell unit, respectively. The bottom of the bracket is evenly distributed along the edge of the seabed base and located around the MHD energy dissipation module. The top of the bracket is fixedly connected to the bottom of the shell unit. When the system moves due to the shock wave generated by an underwater explosion, the magnetic field strength in the MHD elastic bearing and the MHD energy dissipation module is sequentially changed to move them, thereby controlling the system's movement distance. as well as Multiple buoyancy compensation units are evenly distributed between the underwater energy storage unit and the magnetohydrodynamic bearing, and one side of each of the multiple buoyancy compensation units is fixedly connected to the periphery of the magnetohydrodynamic bearing; when the underwater explosion generates a shock wave that causes the shell unit to break and completely detach from the underwater energy storage unit, the multiple buoyancy compensation units provide buoyancy to lift the underwater energy storage unit to the surface.

2. The subsea energy storage system for resisting underwater explosions according to claim 1, characterized in that, The housing unit includes: A substrate layer, which covers the exterior of the energy storage chamber; An interface layer, the interface layer covering the outside of the substrate layer; and An armor layer is provided, which covers the outside of the interface layer, and the bottom of the outer wall of the armor layer is fixedly connected to the top of the magnetohydrodynamic bearing and the top of the support; a spiral groove of a preset depth is provided on the outer surface of the armor layer to guide the shock wave generated by the underwater explosion to spread tangentially.

3. The subsea energy storage system for resisting underwater explosions according to claim 2, characterized in that, The top of the bracket is fixedly connected to the bottom of the armor layer, and the bottom of the bracket is spherical and hinged to a spherical hinge support fixed to the seabed base.

4. The subsea energy storage system for resisting underwater explosions according to claim 1, characterized in that, The magnetohydrodynamic bearing includes: A first bearing portion, the top of which is fixedly connected to the bottom of the housing unit; A second bearing section is mirror-symmetrical to and spaced apart from the first bearing section. The bottom of the second bearing section is fixedly connected to the top of the magnetohydrodynamic elastic energy dissipation module. Magnetohydrodynamic fluid is disposed within both the first and second bearing sections. Multiple first springs are evenly distributed and connected between the first bearing portion and the second bearing portion. Under normal circumstances, the multiple first springs are in a naturally extended state. When the shock wave generated by an underwater explosion causes a change in the magnetic field strength near the system, the magnetic effect of the external magnetic field causes the first bearing portion and the second bearing portion to exhibit the characteristics of like poles repelling or unlike poles attracting, so as to stretch or compress the multiple first springs to control the system displacement change.

5. The subsea energy storage system for resisting underwater explosions according to claim 4, characterized in that, Both the first bearing portion and the second bearing portion include: The bearing housing is mirror-symmetrical to the bearing housing of the first bearing part and the bearing housing of the second bearing part and is fixedly connected to the bottom of the housing unit and the top of the magnetohydrodynamic energy dissipation module, respectively. A bearing magnetic field strength sensor is fixedly connected to the inner wall of the bearing housing. A bearing permanent magnet is disposed inside the bearing housing and is arranged along the inner sidewall of the bearing housing, with its two ends respectively attached to the inner top wall and inner bottom wall of the bearing housing; A bearing magnetofluid, wherein the bearing magnetofluid is disposed inside the bearing housing and located within the space formed by the bearing permanent magnet, the inner top wall, and the inner bottom wall of the bearing housing; and A bearing electromagnetic coil is arranged in a ring between the inner side wall of the bearing housing and the outer wall of the bearing permanent magnet.

6. The subsea energy storage system for resisting underwater explosions according to claim 4, characterized in that, The magnetohydrodynamic energy dissipation module includes: The energy-consuming module housing is embedded in the seabed base, and the top of the energy-consuming module housing is fixedly connected to the bottom of the first bearing part. An energy-consuming module magnetic field strength sensor is fixedly connected to the inner wall of the energy-consuming module housing. A magnetofluid for the energy-consuming module, wherein the magnetofluid for the energy-consuming module is disposed inside the housing of the energy-consuming module; An electromagnetic coil for an energy-consuming module, the electromagnetic coil being laid along the inner wall of the energy-consuming module housing; and Multiple second springs are evenly distributed inside the shell of the energy-consuming module, and the two ends of the multiple second springs are fixedly connected to the top inner wall of the shell of the energy-consuming module and the upper surface of the seabed base, respectively. When the shock wave generated by the underwater explosion causes the magnetic field strength near the system to change, the magnetic field strength is adjusted by energizing the electromagnetic coil of the energy-consuming module to change the viscous resistance of the magnetofluid of the energy-consuming module to consume the energy of the shock wave.

7. The subsea energy storage system for resisting underwater explosions according to claim 6, characterized in that, The support unit also includes: Multiple elastic buffer modules are evenly distributed along the edge of the seabed base and in contact with the bottom edge of the energy dissipation module shell. When the energy dissipation module shell is subjected to a shock wave, under the impact force of the shock wave, the energy dissipation module shell squeezes the elastic buffer modules and moves toward the seabed base to compress the multiple second springs to dissipate the shock wave energy.

8. The subsea energy storage system for resisting underwater explosions according to claim 7, characterized in that, Each of the aforementioned elastic buffer modules includes: A support shaft is fixed in a base groove opened at the edge of the seabed base, and the top of the support shaft is embedded in a socket opened at the bottom edge of the energy consumption module housing; A third spring, wherein the third spring is sleeved outside the support shaft; and A lifting plate is disposed in the base groove. The center of the lifting plate passes through the support shaft and is located on the third spring. The two sides of the lifting plate are in sliding contact with the two sides of the base groove, and the top of the lifting plate is in contact with the bottom edge of the energy-consuming module housing. Under normal circumstances, the third spring is in a naturally extended state. When the energy-consuming module housing is subjected to a shock wave, under the action of the shock wave, the energy-consuming module housing squeezes the lifting plate and compresses the third spring, causing the entire energy-consuming module housing to move towards the bottom of the base groove.

9. The subsea energy storage system for resisting underwater explosions according to claim 8, characterized in that, Each of the aforementioned elastic buffer modules also includes: A baffle is disposed between the third spring and the support shaft and sleeved on the support shaft, and the baffle is spaced apart from the lifting plate to limit the downward movement distance of the lifting plate.

10. The subsea energy storage system for resisting underwater explosions according to claim 1, characterized in that, Each of the plurality of buoyancy compensation units includes: A gas supply chamber, which contains high-pressure gas, and one side of the gas supply chamber is fixedly connected to the magnetohydrodynamic bearing; The release chamber is fixedly connected to the air supply chamber and communicates with the air supply chamber through an electromagnetic valve. An airbag is installed inside the release chamber, and the airbag is supplied with air through the air supply chamber. A first pressure sensor, disposed outside the housing unit, is used to monitor the real-time pressure experienced by the housing unit underwater; and The second pressure sensor is disposed on the upper part of the outer shell of the release chamber and is communicatively connected to the first pressure sensor. When the second pressure sensor receives a real-time pressure greater than the pressure threshold detected by the first pressure sensor, and the real-time pressure causes the shell unit to break and detach from the underwater energy storage unit, the electromagnetic valve and the outer cover of the release chamber open, supplying air to the airbag through the air supply chamber, and releasing the airbag after it is full to provide buoyancy to lift the underwater energy storage unit to the surface of the sea.

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