Sea suspension type data center pipe joint modular joint sealing structure and self-repairing method

Abstract

The invention belongs to the technical field of ocean engineering and data center engineering, and relates to an in-sea suspension type data center pipe joint modular joint sealing structure and a self-repairing method.The in-sea suspension type data center pipe joint modular joint sealing structure comprises a titanium alloy corrugated compensation cover located on the outer layer, and the outer layer titanium alloy corrugated compensation cover is of a detachable design and is provided with a corrugated structure; the hexagonal honeycomb self-repairing cabin is located in the middle layer and arranged on the inner side of the titanium alloy corrugated compensation cover, and microcapsules are distributed in a matrix mode in the hexagonal honeycomb self-repairing cabin in the middle layer; and the electromagnetic driving sealing ring is positioned on the inner layer, is arranged on the inner side of the middle-layer hexagonal honeycomb self-repairing cabin and has adjustable contact pressure. A split type three-level sealing structure is adopted, the advantages of all layers are brought into full play, and the excellent sealing performance of the pipe joint connector in the deep sea high-pressure environment is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical fields of marine engineering and data center engineering, and relates to a modular joint sealing structure for pipe segments of an underwater suspended data center and a self-repairing method thereof. Background Art

[0002] As ocean development continues to advance, suspended data centers are playing an increasingly important role as an emerging infrastructure. However, they face the complex and demanding challenges of the marine environment, placing extremely high demands on pipe joints, a key component of data centers. As key connections between various parts of a data center, the sealing and structural stability of pipe joints directly determine the safe and stable operation of the entire data center. Currently, pipe joints are commonly connected using traditional methods such as welding and bolting. However, these traditional methods have many drawbacks in the marine environment. The marine environment is rich in salt, high in humidity, and contains various chemicals. Traditional connection methods are highly susceptible to corrosion in this environment. Over time, the sealing performance of the joints is difficult to maintain. Once damaged, repair is not only difficult but also costly, seriously affecting the normal operation of the data center.

[0003] In the existing technology, although some relevant patents have explored the sealing design of pipe joints, they all have obvious limitations. Some patents focus on improving the mechanical strength of the joints, but pay insufficient attention to the long-term stability of the sealing performance. In actual applications, such joints are prone to leakage in marine environments and cannot meet the strict sealing requirements of data centers. Although other patents have proposed the concept of self-repair, they lack matching high-efficiency sealing materials and reasonable structural designs. This greatly reduces the self-repair effect and makes it difficult to meet the standards of practical application. At the same time, these patents do not fully consider the durability and reliability of the joints in complex marine environments, and cannot provide long-term stability guarantees for data centers.

[0004] Taking a sealed pipe joint (application number: CN201921580119.5) as an example, the joint forms a sealing part by combining the slot between the outer tube and the inner tube of the joint body with the insertion part, which to a certain extent realizes the labor-saving installation and disassembly, improves the structural strength and prolongs the service life. However, its sealing ring is made of chloroprene rubber. In the marine environment, chloroprene rubber will be affected by various factors such as chemicals and ultraviolet rays, and is prone to aging, cracking and other problems, which in turn affect the sealing performance. In addition, over time, due to factors such as mechanical vibration and temperature changes, the fit between the sealing ring and the slot will become loose or worn, resulting in a further decrease in sealing performance, which cannot meet the high standards of sealing of pipe joints required by offshore suspended data centers.

[0005] To sum up, in order to solve the problems of poor sealing performance, insufficient corrosion resistance, and unsatisfactory self-repair effect of existing pipe joints in marine environments, and to ensure the safe and stable operation of offshore suspended data centers, it is urgent to develop a new type of offshore suspended data center pipe joint modular joint sealing structure. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a modular pipe joint sealing structure and self-repair method for an underwater suspended data center, so as to solve the problems of insufficient sealing performance, poor durability and lack of self-repair ability of the pipe joints in the prior art, realize the long-term stable operation of the pipe joint module in a complex marine environment, and improve the overall performance and reliability of the underwater suspended data center.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A modular joint sealing structure for pipe segments of an underwater suspended data center, comprising:

[0009] A titanium alloy corrugated compensation cover located on the outer layer, wherein the outer titanium alloy corrugated compensation cover is of detachable design and has a corrugated structure;

[0010] The hexagonal honeycomb self-repairing cabin located in the middle layer is arranged on the inner side of the titanium alloy corrugated compensation cover, and a microcapsule matrix distribution is arranged in the hexagonal honeycomb self-repairing cabin of the middle layer;

[0011] The electromagnetically driven sealing ring located in the inner layer is arranged on the inner side of the middle layer hexagonal honeycomb self-repairing cabin and has an adjustable contact pressure.

[0012] Furthermore, a plurality of redundant sealing grooves arranged along the axial direction of the electromagnetically driven sealing ring are provided on the inner side of the electromagnetically driven sealing ring.

[0013] Furthermore, a two-component epoxy resin-graphene composite sealant is filled between the electromagnetically driven sealing ring and the hexagonal honeycomb self-repairing cabin to further improve the sealing reliability.

[0014] Furthermore, electrically controlled hydraulic locking rings are embedded at both ends of the sealing structure to achieve rapid locking of the sealing structure and the pipe joint.

[0015] Furthermore, the outer titanium alloy corrugated compensation cover is provided with a light-triggered self-repairing polyurethane coating.

[0016] Furthermore, the light-triggered self-repairing polyurethane coating can automatically repair surface damage of the titanium alloy corrugated compensation cover under light conditions, thereby enhancing the durability of the sealing structure.

[0017] Furthermore, the microcapsules in the microcapsule matrix distribution are filled with two-component epoxy resin.

[0018] Furthermore, the microcapsules in the microcapsule matrix distribution rupture when the pH value is lower than 5.5, releasing repair substances to repair the damaged parts.

[0019] A self-repairing method for a modular pipe joint sealing structure for an underwater suspended data center, using the modular pipe joint sealing structure for an underwater suspended data center, the self-repairing method comprising:

[0020] When the titanium alloy corrugated compensation cover is damaged, the damage light-triggered self-repairing polyurethane coating automatically repairs the surface damage of the titanium alloy corrugated compensation cover under light;

[0021] When the hexagonal honeycomb self-repairing cabin is damaged, seawater enters the hexagonal honeycomb self-repairing cabin, and the microcapsules distributed in the microcapsule matrix are ruptured under the stimulation of seawater, releasing repair substances to quickly repair the damaged parts.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention adopts a split three-stage sealing structure, giving full play to the advantages of each layer to ensure the excellent sealing performance of the pipe joint connector in the deep-sea high-pressure environment. The outer titanium alloy corrugated compensation cover can resist the corrosion and impact of seawater, protecting the internal components from the harsh marine environment. The middle hexagonal honeycomb self-repairing cabin enhances mechanical strength and stability, effectively disperses external stress, and reduces the impact of the deep-sea environment on the sealing system. The inner electromagnetically driven sealing ring can dynamically adjust the contact pressure to maintain an excellent sealing effect and prevent seawater infiltration. The three layers work together to provide excellent durability and reliability for the sealing system in extreme environments.

[0024] 2. The self-repair function integrated in the present invention significantly extends the service life of the system and reduces maintenance costs through advanced materials and mechanisms. When the microcapsule matrix embedded in the hexagonal honeycomb self-repairing cabin comes into contact with corrosive seawater, it releases a two-component epoxy resin through a pH-sensitive wall-breaking reaction (triggered by pH < 5.5), quickly repairing minor damage and preventing further deterioration. In addition, the outer layer of light-triggered self-repairing polyurethane coating can automatically repair surface scratches under light conditions, enhancing the durability of the system. This dual self-repairing mechanism reduces the need for frequent manual maintenance, improves economic benefits and ensures long-term operational stability in deep-sea environments.

[0025] 3. This invention achieves fast and reliable pipe joint connections through an electrically controlled hydraulic locking ring and redundant sealing channels. The locking ring quickly secures the connection, improving operational efficiency; the redundant sealing channels evenly distribute pressure, reducing stress concentration and enhancing connection durability and sealing. This design simplifies installation and maintenance, reduces energy consumption, and ensures reliable operation of the system in deep-sea suspended data centers. By improving connection efficiency and stability, this invention offers significant advantages for practical application and economic benefits.

[0026] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0028] Figure 1 This is an overall architecture diagram of a modular joint sealing structure for pipe segments of an underwater suspended data center in an embodiment;

[0029] Figure 2 Schematic cross-sectional view of a modular joint sealing structure for pipe segments of an underwater suspended data center according to an embodiment;

[0030] Figure 3 This is a flow chart of a self-repairing method for a modular joint sealing structure of a pipe segment of an underwater suspended data center in an embodiment.

[0031] Figure numerals: 1-titanium alloy corrugated compensation cover, 2-hexagonal honeycomb self-repairing cabin, 3-electromagnetic driven sealing ring, 4-electrically controlled hydraulic locking ring, 5-redundant sealing groove, 6-microcapsule matrix distribution, 7-light-triggered self-repairing polyurethane coating, 8-filling area of epoxy resin-graphene composite sealant. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the 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 or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] Example 1

[0036] See also Figures 1 and 2 , is a modular joint sealing structure for pipe segments of an underwater suspended data center, including:

[0037] A titanium alloy corrugated compensation cover 1 located on the outer layer, the outer titanium alloy corrugated compensation cover is of detachable design and has a corrugated structure;

[0038] The hexagonal honeycomb self-repairing cabin 2 located in the middle layer is arranged on the inner side of the titanium alloy corrugated compensation cover, and a microcapsule matrix distribution 6 is arranged in the middle layer hexagonal honeycomb self-repairing cabin;

[0039] The electromagnetically driven sealing ring 3 located in the inner layer is arranged inside the middle layer hexagonal honeycomb self-repairing cabin and has an adjustable contact pressure.

[0040] Furthermore, a plurality of redundant sealing grooves 5 arranged along the axial direction of the electromagnetically driven sealing ring are provided on the inner side of the electromagnetically driven sealing ring 3 .

[0041] Furthermore, a two-component epoxy resin-graphene composite sealant 8 is filled between the electromagnetically driven sealing ring 3 and the hexagonal honeycomb self-repairing cabin 2 to further improve the sealing reliability.

[0042] Furthermore, an electrically controlled hydraulic locking ring 4 is embedded at both ends of the sealing structure as a multimodal connection mechanism, and cooperates with the redundant sealing groove 5 to form an intelligent interconnection interface system to achieve rapid locking of the sealing structure and the pipe joint, forming.

[0043] Furthermore, the outer titanium alloy corrugated compensation cover 1 is provided with a light-triggered self-repairing polyurethane coating 7.

[0044] Furthermore, the light-triggered self-repairing polyurethane coating 7 can automatically repair surface damage of the titanium alloy corrugated compensation cover under light conditions, thereby enhancing the durability of the sealing structure.

[0045] Furthermore, the microcapsules in the microcapsule matrix distribution 6 are filled with two-component epoxy resin.

[0046] Furthermore, the microcapsules in the microcapsule matrix distribution 6 rupture when the pH value is lower than 5.5, releasing the repair substance to repair the damaged area.

[0047] Furthermore, each component in this embodiment adopts a standardized interface design to facilitate production, assembly and maintenance, while supporting flexible configuration of different functional modules according to actual needs, thereby improving overall performance and adaptability.

[0048] This sealing structure is used to connect the pipe modules of the underwater suspended data center to ensure sealing and stability in the marine environment. The assembly steps are as follows:

[0049] Preparation:

[0050] Take the two pipe modules to be connected and inspect the surfaces of the connecting ends to ensure they are smooth and clean, free of oil, rust, or other impurities. Prepare the tools needed for assembly, such as the sealant applicator and the electronically controlled hydraulic locking device.

[0051] Install the electro-hydraulic locking ring:

[0052] An electrically controlled hydraulic locking ring 4 is embedded in the connection end of each pipe segment module. Adjust the locking ring position to keep it concentric with the pipe segment connection end, and then test the response time of the locking ring through the electronic control system to ensure that it can complete the locking action within 50ms.

[0053] Install the electromagnetic drive seal ring:

[0054] An electromagnetically driven sealing ring 3 is installed at the connection end of one of the pipe sections. The electromagnetically driven sealing ring 3 features an adjustable contact pressure design, which is adjusted to a preset pressure value (e.g., 0.5 MPa) via an electromagnetic drive device. At least three redundant sealing grooves 5 are axially defined on the inner side of the electromagnetically driven sealing ring 3 (in other embodiments, more grooves may be defined as needed). Each groove is 2 mm deep and 1 mm wide, and is filled with a two-component epoxy resin-graphene composite sealant 8. After filling, the inner layer's sealing performance is tested with a pressure tester to ensure there is no leakage.

[0055] Installation of hexagonal honeycomb self-repair cabin:

[0056] An epoxy resin-graphene composite sealant is applied to the outer side of the electromagnetically driven sealing ring 3 to form an epoxy resin-graphene composite sealant filling area 8, and then the hexagonal honeycomb self-repairing cabin 2 is sleeved on the electromagnetically driven sealing ring 3;

[0057] The honeycomb structure is made of a high-strength polymer, with each honeycomb unit having a side length of approximately 5 mm. A microcapsule matrix is uniformly filled within the honeycomb unit, forming a microcapsule matrix distribution 6. The microcapsules are filled with a two-component epoxy resin, and the microcapsules have a diameter of approximately 50 microns.

[0058] Install the titanium alloy corrugated compensation cover:

[0059] Install a titanium alloy corrugated compensating cover 1 outside the hexagonal honeycomb self-repairing chamber 2. This cover is removable and features a corrugated structure to absorb stress variations at the pipe joint. Use a specialized clamping tool to secure the cover to the pipe joint, ensuring alignment of the joints. After installation, inspect the integrity of the corrugated structure.

[0060] Applying self-healing coating:

[0061] A light-triggered self-repairing polyurethane coating 7 is uniformly applied to the outer surface of the titanium alloy corrugated compensation cover 1. The coating thickness is controlled to be about 0.2 mm, and a UV lamp is used to irradiate the coating for 5 minutes to solidify the coating to ensure that it can achieve self-repair function under light conditions.

[0062] Docking and locking:

[0063] Connect the other end of the pipe joint module to the pipe joint with the installed sealing structure, adjust the electric hydraulic locking rings 4 at both ends to align them, and lock them. After locking, check the sealing and stability of the entire connection to ensure that there is no looseness or leakage.

[0064] The above steps complete the assembly of a modular joint sealing structure for pipe segments in a marine suspended data center. This structure effectively prevents seawater infiltration in marine environments and improves sealing reliability through redundant design.

[0065] Example 2: Self-repairing method for modular joint sealing structure of pipe joints in underwater suspended data centers

[0066] like Figure 3 As shown, this embodiment provides a self-repair method for a modular joint sealing structure for a pipe segment in a marine suspended data center. This method utilizes the sealing structure assembled in Example 1 to automatically repair damage to the outer or middle layer, ensuring the long-term sealing of the pipe segment connection.

[0067] Self-repair steps:

[0068] Outer layer damage repair:

[0069] When the titanium alloy corrugated compensating cover 1 is damaged (e.g., cracks or pinholes) due to external impact or corrosion, the light-triggered self-healing polyurethane coating 7 applied to the outer surface takes effect. In a marine environment, sunlight or artificial ultraviolet light irradiates the damaged area, activating the photosensitive molecules in the coating and triggering a cross-linking reaction in the polyurethane molecular chains.

[0070] Middle layer damage repair:

[0071] When the outer layer is insufficient to repair the damage, and the hexagonal honeycomb self-repairing pods 2 are damaged by external forces or fatigue, allowing seawater to penetrate the honeycomb structure, the microcapsule matrix 6 begins to function. The microcapsules within the honeycomb cells rupture under the influence of seawater (generally, seawater has a pH below 5.5), releasing the two-component epoxy resin inside. The repair material quickly solidifies, filling the damaged area and forming a tough repair layer.

[0072] Verify the repair effect:

[0073] After the repair is complete, pressure testing equipment is used to test the sealing performance of the entire sealing structure to ensure that there is no leakage under the internal and external pressure differential. At the same time, the structural integrity of the titanium alloy corrugated compensation cover 1 and the hexagonal honeycomb self-repairing cabin 2 is checked to confirm the durability of the repair.

[0074] Through the above self-repair method, the sealing structure can achieve self-repair in complex marine environments, effectively extending the service life and ensuring the safe operation of the data center pipe module.

[0075] Furthermore, this embodiment also provides a self-repair test method for a modular joint sealing structure of a pipe segment of an underwater suspended data center, which specifically includes the following steps:

[0076] Step 1: Install the pipe joints equipped with the modular joint sealing structure of the underwater suspended data center pipe joints in a dedicated test device to ensure that the pipe joints are under water pressure that simulates the marine environment; check the sealing and connection stability of the test device to ensure that there are no accidental leaks during the test;

[0077] Step 2: Gradually increase the water pressure to 1.5 times the design working pressure, maintain the pressure stable, and last for no less than 2 hours; during the pressurization process, record the pressure change curve to ensure that the pressure loading process is smooth and without sudden changes.

[0078] Step 3: While maintaining high pressure, add a salt solution simulating the corrosiveness of seawater to the water, allowing the salt solution to fully contact the pipe joints. Observe and record the corrosion of the joint surface and each layer structure for at least 4 hours;

[0079] Step 4: Evaluate the sealing performance based on the leakage situation to ensure that the joint is leak-free under the design pressure. If leakage is found, analyze the cause of the leakage and adjust the sealing structure or material to obtain the best sealing structure for the modular joint of the underwater suspended data center pipe segment;

[0080] Step 5: Perform vibration tests on the pipe joints under simulated marine environmental conditions to simulate the water flow impact and mechanical vibration in the marine environment. Observe and record the sealing performance and structural stability of the joints during the vibration process.

[0081] Step 6: After the test, gradually reduce the pressure to normal pressure and record the pressure drop curve. Then remove the pipe joint from the test device and conduct a detailed appearance inspection and performance evaluation. The inspection content includes whether there is any obvious deformation, wear or corrosion on the surface of the sealing structure, and whether the various layers of the structure are intact.

[0082] Step 7: Artificially create tiny scratches or cracks in the self-healing coating on the exterior of the seal structure to simulate actual damage. The damage locations should be selected in different areas of the coating, including those subject to both high and low stress.

[0083] Step 8: Expose the damaged area to light of a specific wavelength to simulate natural lighting conditions and trigger the self-healing coating's repair mechanism. The light intensity and wavelength should be adjusted according to the characteristics of the coating material to ensure that the lighting conditions meet the design requirements.

[0084] Step 9: Disassemble the pipe joints for inspection, focusing on the distribution of the microcapsules and the self-healing properties of the light-triggered self-healing polyurethane coating. Microscopic observation of the microcapsule rupture and the filling of the repair material evaluates the effectiveness of the self-healing function.

[0085] Step 10: Compare the coating integrity before and after repair, evaluate the self-repair performance, and ensure that the coating can complete automatic repair within the specified time and restore the protective function.

[0086] A regular maintenance plan is formulated based on the test results to check the wear and aging of each component and replace damaged components in a timely manner to ensure the good effect of the modular joint sealing structure of the underwater suspended data center pipe segment in actual application.

[0087] In summary, the present invention improves the sealing performance and self-repairing ability of the joint through the integrated design of a split three-stage sealing structure and a self-repairing function; the self-repairing function is achieved through the microcapsule matrix distribution and light-triggered coating, which can automatically repair after damage, thereby extending the service life of the system, providing an innovative solution for deep-sea pipe joint sealing, and has broad application prospects.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A modular joint sealing structure for pipe segments of an underwater suspended data center, characterized in that: include: A titanium alloy corrugated compensation cover located on the outer layer, wherein the outer titanium alloy corrugated compensation cover is of detachable design and has a corrugated structure; The hexagonal honeycomb self-repairing cabin located in the middle layer is arranged on the inner side of the titanium alloy corrugated compensation cover, and a microcapsule matrix distribution is arranged in the hexagonal honeycomb self-repairing cabin of the middle layer; The electromagnetically driven sealing ring located in the inner layer is arranged on the inner side of the middle layer hexagonal honeycomb self-repairing cabin and has an adjustable contact pressure.

2. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 1 is characterized in that: A plurality of redundant sealing grooves arranged along the axial direction of the electromagnetic drive sealing ring are provided on the inner side of the electromagnetic drive sealing ring.

3. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 1 is characterized in that: A two-component epoxy resin-graphene composite sealant is filled between the electromagnetically driven sealing ring and the hexagonal honeycomb self-repairing cabin to further improve the sealing reliability.

4. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 1 is characterized in that: Electrically controlled hydraulic locking rings are embedded at both ends of the sealing structure to achieve rapid locking of the sealing structure and the pipe joint.

5. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 1 is characterized in that: The outer titanium alloy corrugated compensation cover is provided with a light-triggered self-repairing polyurethane coating.

6. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 5 is characterized in that: The light-triggered self-repairing polyurethane coating can automatically repair surface damage of the titanium alloy corrugated compensation cover under light conditions, thereby enhancing the durability of the sealing structure.

7. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 6 is characterized in that: The microcapsules in the microcapsule matrix are filled with two-component epoxy resin.

8. The modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 7 is characterized in that: The microcapsules in the microcapsule matrix distribution are broken when the pH value is lower than 5.5, and the repair substances are released to repair the damaged parts.

9. A self-repairing method for a modular joint sealing structure of a pipe segment in an underwater suspended data center, characterized in that: Using the modular joint sealing structure for pipe segments of an underwater suspended data center according to claim 8, the self-repairing method includes: When the titanium alloy corrugated compensation cover is damaged, the damage light-triggered self-repairing polyurethane coating automatically repairs the surface damage of the titanium alloy corrugated compensation cover under light; When the hexagonal honeycomb self-repairing cabin is damaged, seawater enters the hexagonal honeycomb self-repairing cabin, and the microcapsules distributed in the microcapsule matrix are ruptured under the stimulation of seawater, releasing repair substances to quickly repair the damaged parts.

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