Deck arrangement, ro-ro vessel and fire extinguishing method

Abstract

The application provides a deck device, a roll-on / roll-off ship and a fire extinguishing method. The deck device comprises a plate body, the plate body comprising a first surface and a second surface in the thickness direction, the first surface being used for parking vehicles, the plate body being provided with a binding hole penetrating in the thickness direction; a blocking device arranged on the second surface and fixedly installed with the plate body, the blocking device being used for blocking the binding hole; and a binding device arranged in the binding hole and used for connecting a hook on a binding belt penetrating through a vehicle tire. In the deck device of the application, when a fire occurs and is extinguished, the blocking device is installed on the second surface of the plate body and blocks the lower end of the binding hole, the extinguishing agent cannot flow out in large quantities through the binding hole, but forms an effective liquid level or a covering layer around the vehicle bottom and the binding hole, fully immersing the chassis and the power battery, and is beneficial to improving the fire extinguishing efficiency.

Description

Technical Field

[0001] This application relates to the field of transportation equipment technology, and more particularly to a deck device, a roll-on / roll-off ship, and a fire extinguishing method. Background Technology

[0002] As an important maritime vehicle for transporting vehicles, construction machinery, and new energy vehicles, roll-on / roll-off (Ro-Ro) ships typically have numerous lashing holes on their cargo decks for securing transport units. These lashing holes are generally through-holes that penetrate the upper and lower surfaces of the deck, and are used in conjunction with lashing hooks, chains, or ropes to reliably secure the vehicles, ensuring stability during navigation.

[0003] However, during transportation, if vehicles loaded on deck (especially new energy vehicles equipped with high-energy-density batteries) experience thermal runaway, fire, or other abnormal situations, the extinguishing agents sprayed by existing fire suppression systems (such as foam extinguishing systems, aerogel spray devices, or water mist systems) onto the burning vehicle can easily leak into the lower deck or hold space through the aforementioned lashing holes. Because the extinguishing agents cannot effectively accumulate and cover the bottom and chassis area of ​​the burning vehicle, the fire source, especially the power batteries located under the vehicle, cannot be fully submerged or cooled, severely weakening the fire suppression effect and potentially causing the fire to spread to the lower cargo hold, resulting in a major safety accident. Summary of the Invention

[0004] This application provides a deck device, a roll-on / roll-off ship, and a fire extinguishing method, which helps to improve the accumulation effect of extinguishing agents on the deck during fire extinguishing, thereby playing a role in timely fire extinguishing.

[0005] On one hand, this application provides a deck device for use on a roll-on / roll-off ship. The deck device includes: a plate body, the plate body having a first surface and a second surface along the thickness direction, the first surface being used for parking vehicles, and the plate body having a lashing hole extending through the thickness direction; a sealing device, disposed on the second surface and fixedly installed with the plate body, the sealing device being used to seal the lashing hole; and a lashing device, disposed on the lashing hole, for connecting a hook on a lashing strap passing through a vehicle tire.

[0006] In this application, during routine transport operations, vehicles drive into the cargo hold of a roll-on / roll-off ship and park on the first surface of the deck. Operators thread lashing straps through the vehicle's tires and connect the hooks at the ends of the straps to the lashing device, thus securing the vehicle. At this time, the sealing device is located on the second surface of the deck, in a ready-to-use state, not protruding from the deck surface, and does not obstruct vehicle passage or lashing operations.

[0007] In the event of a fire emergency, when the monitoring system on the roll-on / roll-off ship detects thermal runaway or fire in a vehicle, it activates the fire suppression system to spray extinguishing agent into the area. Because the sealing device is installed on the second side of the hull and seals the lower end of the lashing holes, the extinguishing agent cannot escape in large quantities through the lashing holes. Instead, it forms an effective liquid level or covering layer under the vehicle and around the lashing holes, fully submerging the chassis and power battery, which helps improve fire suppression efficiency. The lashing device maintains structural stability during this process and does not impede the sealing function.

[0008] In this way, the mooring safety requirements during navigation and transportation are met, the fire emergency response capability is enhanced, the risk of major accidents is reduced, and the overall fire safety level of the roll-on / roll-off ship is improved.

[0009] In some embodiments, the binding device includes a bracket, the bracket includes a main rod, the main rod includes a connecting end and a limiting end along the thickness direction of the plate, the sealing device is connected to the connecting end, the limiting end is provided with a mounting member, the mounting member has an outer edge along its own radial direction, at least a portion of the structure of the outer edge abuts against the first surface.

[0010] According to some embodiments of the present invention, the mounting member has an inner edge along its own radial direction, at least a portion of the inner edge forming a mounting portion for connection with a hook, the projection of the mounting portion in a reference plane lies within the projection profile of the binding hole in the reference plane, the reference plane being perpendicular to the axis of the binding hole.

[0011] According to some embodiments of the present invention, the limiting end is provided with at least one crossbar, the crossbar being perpendicular to the axial direction of the binding hole, and the crossbar being connected to the inner edge of the mounting member; and / or, a connecting rod is provided at one end of the crossbar away from the limiting end, the connecting rod extending obliquely along the axial direction of the binding hole, and the connecting rod being fixedly connected to the mounting member.

[0012] According to some embodiments of the present invention, the connecting end is provided with threads, the sealing device is provided with a mounting hole, the connecting end passes through the mounting hole, the portion of the connecting end passing through the mounting hole is provided with a nut, the sealing device includes a main body, a portion of the main body protrudes circumferentially to form a limiting portion, the limiting portion radially exceeds the diameter of the binding hole, and the limiting portion abuts against the second surface.

[0013] According to some embodiments of the present invention, the sealing device includes a main body, the main body being provided with a limiting part, the limiting part extending radially beyond the diameter of the binding hole, and the limiting part being connected to the second surface; a portion of the structure of the binding hole constitutes the binding device.

[0014] In some embodiments, the sealing device includes a main body portion, within which an accommodating space is formed, and the cross-sectional area of ​​the accommodating space gradually decreases along the direction away from the second surface along the axial direction of the binding hole.

[0015] According to some embodiments of the present invention, the main body is provided with a plurality of drip holes at one end away from the second surface along the axial direction of the binding hole, and the plurality of drip holes are arranged around the axis of the binding hole; the diameter D of the drip holes satisfies: 0.1mm≤D≤2mm.

[0016] In some embodiments, the sealing device is a lightweight metal component; and / or,

[0017] A sealing layer is provided between the limiting part of the sealing device and the second surface; and / or,

[0018] The sealing device is coated with a corrosion-resistant layer.

[0019] Secondly, embodiments of this application also provide a roll-on / roll-off ship, including the aforementioned deck apparatus.

[0020] Thirdly, embodiments of this application also provide a fire extinguishing method applied to a roll-on / roll-off ship as described above, the roll-on / roll-off ship including a monitoring system, a cofferdam device, and a fire extinguishing system, the method comprising:

[0021] The monitoring system receives signals from abnormal vehicles;

[0022] The cofferdam device was deployed, forming a temporary barrier around the abnormal vehicle;

[0023] The fire extinguishing device sprays fire extinguishing agent into the temporary enclosure to extinguish the fire. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is one of the structural schematic diagrams of the deck device according to an embodiment of the present invention;

[0026] Figure 2 This is a second schematic diagram of the deck device according to an embodiment of the present invention;

[0027] Figure 3 This is one of the structural schematic diagrams of the sealing device and binding device assembly according to an embodiment of the present invention;

[0028] Figure 4 A cross-sectional view of the sealing device and binding device assembled according to an embodiment of the present invention;

[0029] Figure 5A second schematic diagram of the assembly of the sealing device and the binding device according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the sealing device according to another embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the plate structure according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Deck device;

[0034] 110 - Plate body; 111 - First side; 112 - Second side; 113 - Binding hole;

[0035] 120 - Sealing device; 121 - Main body; 1211 - Accommodating space; 1212 - Drip hole; 122 - Limiting part;

[0036] 130-Binding device; 131-Bracket; 132-Main rod; 132a-Connecting end; 132b-Limiting end; 133-Mounting component; 1331-Outer edge; 1332-Inner edge; 134-Crossbar; 135-Connecting rod; 136-Nut component.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] As an important maritime vehicle for transporting vehicles, construction machinery, and new energy vehicles, roll-on / roll-off (Ro-Ro) ships typically have numerous lashing holes on their cargo decks for securing transport units. These lashing holes are generally through-holes that penetrate the upper and lower surfaces of the deck, and are used in conjunction with lashing hooks, chains, or ropes to reliably secure the vehicles, ensuring stability during navigation.

[0040] However, during transportation, if vehicles loaded on deck (especially new energy vehicles equipped with high-energy-density batteries) experience thermal runaway, fire, or other abnormal situations, the extinguishing agents sprayed by existing fire suppression systems (such as foam extinguishing systems, aerogel spray devices, or water mist systems) onto the burning vehicle can easily leak into the lower deck or hold space through the aforementioned lashing holes. Because the extinguishing agents cannot effectively accumulate and cover the bottom and chassis area of ​​the burning vehicle, the fire source, especially the power batteries located under the vehicle, cannot be fully submerged or cooled, severely weakening the fire suppression effect and potentially causing the fire to spread to the lower cargo hold, resulting in a major safety accident.

[0041] In view of this, this application provides a deck device, a roll-on / roll-off ship, and a fire extinguishing method, which helps to improve the accumulation effect of extinguishing agents on the deck during fire extinguishing, thereby playing a role in timely fire extinguishing.

[0042] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0043] refer to Figures 1 to 7 On the one hand, this application provides a deck device 100, which is installed on a roll-on / roll-off ship.

[0044] The deck device 100 includes a plate 110, a sealing device 120, and a lashing device 130.

[0045] refer to Figure 7 The plate 110 constitutes the basic load-bearing unit of the cargo hold deck of the roll-on / roll-off ship. The plate 110 has a first surface 111 and a second surface 112 along the thickness direction. The first surface 111 serves as the vehicle parking surface and bears the static and dynamic loads of the vehicle during transportation.

[0046] The plate 110 is provided with binding holes 113 that extend through the thickness direction. The binding holes 113 extend through the plate 110 along the thickness direction, providing a channel for binding operations, and at the same time becoming the main path for extinguishing agent leakage in fire conditions. Among them, multiple binding holes 113 can be arranged in an array on the plate 110 to accommodate large-volume transportation.

[0047] The sealing device 120 is disposed on the second side 112 of the plate 110 (i.e., below the deck) and fixedly installed with the plate 110. The sealing device 120 is used to seal the lashing hole 113. In emergency scenarios such as fire, the lower opening of the lashing hole 113 is sealed to prevent extinguishing agents such as foam, aerogel, or water mist from leaking into the lower compartment. The sealing device 120 and the plate 110 together form a closed or semi-closed cavity, which promotes the effective accumulation of extinguishing agent at the bottom and chassis area of ​​the burning vehicle, improving the coverage and cooling effect on critical fire sources such as the power battery.

[0048] Furthermore, the sealing device 120 is located below the deck in non-emergency situations, and does not affect normal operations above the deck.

[0049] The lashing device 130 is disposed in the lashing hole 113. Exemplarily, the lashing device 130 may be disposed within or around the lashing hole 113 for connecting a hook on a lashing strap that passes through the vehicle tire. The lashing device 130 provides a standardized fastening interface to ensure that the lashing strap hook can be reliably anchored, achieving a secure hold on the vehicle.

[0050] In routine transport operations, the deck device 100 of this application allows vehicles to drive into the cargo hold of a roll-on / roll-off ship and park on the first surface 111 of the deck hull 110. Operators thread lashing straps through the vehicle tires and connect the hooks at the ends of the straps to the lashing device 130, thus securing the vehicle. At this time, the sealing device 120 is located on the second surface 112 of the deck hull 110, in a ready-to-use state, not protruding from the deck surface, and does not obstruct vehicle passage or lashing operations.

[0051] In the event of a fire emergency, when the monitoring system on the roll-on / roll-off ship detects thermal runaway or fire in a vehicle, it activates the fire suppression system to spray extinguishing agent into the area. Because the sealing device 120 is installed on the second surface 112 of the plate 110 and seals the lower end of the lashing hole 113, the extinguishing agent cannot leak out in large quantities through the lashing hole 113. Instead, it forms an effective liquid level or covering layer at the bottom of the vehicle and around the lashing hole 113, fully submerging the chassis and power battery, which helps improve fire suppression efficiency. The lashing device 130 remains structurally stable during this process and does not obstruct the sealing function.

[0052] In this way, the mooring safety requirements during navigation and transportation are met, the fire emergency response capability is enhanced, the risk of major accidents is reduced, and the overall fire safety level of the roll-on / roll-off ship is improved.

[0053] refer to Figure 1 , Figure 2 and Figure 4 In some embodiments, the binding device 130 includes a bracket 131, which serves as a support structure for the binding device 130 and as a connection medium between the sealing device 120 and the plate 110, thereby achieving integrated fixation of the upper and lower structures.

[0054] The bracket 131 includes a main rod 132, which extends along the thickness direction of the plate 110 and constitutes the main load-bearing component of the bracket 131. It transmits load in the vertical direction and effectively transmits the binding tension of the mounting component 133 to the sealing device 120 and the plate 110, keeping the relative position between the mounting component 133 and the sealing device 120 stable and preventing the vehicle from shifting or loosening during transportation.

[0055] The main rod includes a connecting end 132a and a limiting end 132b along the thickness direction of the plate 110. The connecting end 132a is located on the side of the main rod 132 near the second surface 112 of the plate 110 and is connected to the sealing device 120. The bracket 131 is firmly anchored to the sealing device 120, forming a structure that integrates sealing, support and binding functions. This avoids additional drilling or welding on the plate 110 and simplifies the installation process.

[0056] The limiting end 132b is provided with a mounting member 133, which has an outer edge 1331 along its own radial direction. At least a portion of the structure of the outer edge 1331 abuts against the first surface 111. Exemplarily, the outer edge 1331 may be provided with a plurality of radially protruding bosses that abut against the first surface 111, or the outer edge 1331 may protrude radially as a whole to form an annular structure that abuts against the first surface 111.

[0057] Thus, the contact between the outer edge 1331 and the first surface 111 of the plate 110 forms an axial limit, preventing the bracket 131 from sliding downwards onto the plate 110 under binding force. Simultaneously, it increases the contact area between the mounting component 133 and the deck, which helps to disperse local compressive stress and avoid damage to the deck surface. The mounting component 133 provides a clear operating interface for the lashing hooks, improving the convenience of daily securing operations.

[0058] refer to Figure 1 and Figure 4 According to some embodiments of the present invention, the mounting member 133 has an inner edge 1332 along its own radial direction. At least a portion of the structure of the inner edge 1332 forms a mounting portion for connection with a hook. Exemplarily, the mounting portion may be a boss with a hook hole on the inner edge 1332, or it may be a flange with a hook hole, or a portion of the structure of the inner edge 1332 of the mounting member 133 may protrude toward the second surface 112 to form a protrusion. A mounting groove (e.g., a T-groove) is provided on the protrusion to form the mounting portion, and the hook is hung in the mounting groove.

[0059] The mounting section serves as the connection interface for the cable ties hook, providing a reliable anchor point for stress. Utilizing the structural strength of the inner edge 1332, it ensures that the vehicle can withstand tensile forces without deformation or breakage during vehicle securing.

[0060] The projection of the mounting part onto the reference plane lies within the projection outline of the lashing hole 113 onto the reference plane, and the reference plane is perpendicular to the axis of the lashing hole 113 (e.g., a horizontal plane). That is, in the horizontal direction, the mounting part is located within the lashing hole 113, ensuring that the hook's connection point is directly opposite the center area of ​​the lashing hole 113, avoiding eccentric force. The lashing strap, after exiting from the vehicle tire, can smoothly pass through and connect with the mounting part, reducing operational resistance; simultaneously, it prevents the mounting part from protruding beyond the lashing hole 113, avoiding interference with adjacent vehicle parking or deck passage.

[0061] refer to Figure 4 According to some embodiments of the present invention, the limiting end 132b is provided with at least one crossbar 134, the crossbar 134 being perpendicular to the axial direction of the binding hole 113, and the crossbar 134 being connected to the inner edge 1332 of the mounting member 133; exemplaryly, the limiting end 132b of the main body rod 132 can extend to a position flush with the mounting member 133, and there can be one crossbar 134, with the middle part of the crossbar 134 connected to the limiting end 132b, and both ends of the crossbar 134 directly connected to the inner edge 1332 of the mounting member 133 along its own length direction. Alternatively, there can be multiple crossbars 134, with the middle part of the crossbar 134 connected to the limiting end 132b, and both ends of the crossbar 134 directly connected to the inner edge 1332 of the mounting member 133 along its own length direction.

[0062] The crossbar 134 forms a support frame for the mounting member 133, firmly connecting the inner edge 1332 of the mounting member 133 to the limiting end 132b, preventing it from deforming or overturning when subjected to binding force; it helps to distribute the concentrated load applied to the mounting part by the hook, and transmit it to the main rod 132 through the crossbar 134, thereby improving the structural rigidity of the binding device 130.

[0063] Among them, multiple crossbars 134 can be arranged radially or symmetrically to further enhance the torsional and bending resistance of the mounting component 133.

[0064] In other embodiments, the limiting end 132b and the mounting member 133 can be spaced apart along the axial direction of the binding hole 113. That is, there is a certain distance between the crossbar 134 and the mounting member 133. A connecting rod 135 is provided at the end of the crossbar 134 away from the limiting end 132b. The connecting rod 135 extends obliquely along the axial direction of the binding hole 113 and is fixedly connected to the mounting member 133.

[0065] Thus, the connecting rod 135, the crossbar 134, and the mounting component 133 form a multi-directional support system, effectively resisting the tensile, shear, and torque forces generated during the binding process. This helps improve the positioning accuracy and load-bearing capacity of the mounting component 133 in three dimensions. The inclined extension of the connecting rod 135 can guide the binding tape into the mounting section, reducing operational friction and jamming, thereby extending the service life of the binding tape and also reducing damage to the plate 110.

[0066] Thus, without expanding the outer contour of the mounting component 133, high strength is achieved through internal skeleton reinforcement, maintaining compatibility with the projected contour of the binding hole 113.

[0067] refer to Figure 3 , Figure 4 and Figure 5 According to some embodiments of the present invention, the connecting end 132a is provided with a thread, which is provided on the part of the main rod 132 of the bracket 131 located on the second surface 112 side of the plate 110, providing a mechanical connection interface that cooperates with the nut 136, thereby realizing the detachable fastening between the bracket 131 and the sealing device 120.

[0068] The sealing device 120 is provided with a mounting hole, which allows the connecting end 132a of the bracket 131 to pass through from above the sealing device 120, forming a through-mount assembly structure. The connecting end 132a passes through the mounting hole, and a nut 136 is provided on the part of the connecting end 132a that passes through the mounting hole. The nut 136 is screwed onto the threaded section of the connecting end 132a that is exposed in the mounting hole, clamping and fixing the sealing device 120 between the bracket 131 and the nut.

[0069] The sealing device 120 includes a main body 121. A portion of the main body 121 protrudes circumferentially to form a limiting part 122, which increases the contact area between the sealing device 120 and the plate 110, thereby improving the sealing reliability of the sealing device 120. The limiting part 122 serves as an axial positioning reference to prevent the sealing device 120 from sliding into the binding hole 113 during use.

[0070] The limiting part 122 extends radially beyond the diameter of the binding hole 113 and abuts against the second surface 112, so that the limiting part 122 completely covers the lower opening of the binding hole 113, forming an effective physical barrier. On the one hand, through the surface contact between the limiting part 122 and the second surface 112 of the plate 110, the path of leakage of extinguishing agent along the gap in the hole wall is blocked. On the other hand, the limiting part 122, by bearing the clamping force applied by the nut 136, stably anchors the sealing device 120 below the deck.

[0071] In this embodiment, the limiting part 122 of the sealing device 120 can be tightly fitted to the second surface 112 of the plate 110 by tightening force, thereby enhancing the sealing effect.

[0072] Furthermore, a buffer spring or other buffer device can be provided between the nut 136 and the sealing device 120 to reduce the impact of external forces on the sealing device 120, which is beneficial to improving the overall stability of the deck device 100.

[0073] Understandably, the mounting part 133 on the upper side of the lashing device 130 is limited and engaged with the first surface 111, and the limiting part 122 of the sealing device 120 is limited and engaged with the second surface 112. The lashing device 130 and the sealing device 120 are fixedly connected. The upper end of the lashing device 130 and the limiting part 122 of the sealing device 120 form a clamping structure located on both sides of the deck thickness, which improves the installation stability of the sealing device 120.

[0074] refer to Figure 6 According to some embodiments of the present invention, the sealing device 120 includes a main body 121, the main body 121 being provided with a limiting part 122, the limiting part 122 extending radially beyond the diameter of the binding hole 113, and the limiting part 122 being connected to the second surface 112. Exemplarily, the limiting part 122 can be configured as a magnetic element. During installation, the sealing device 120 is brought close to the binding hole 113 from below the deck, and the limiting part 122 automatically adheres to the steel second surface 112 under magnetic force. Alternatively, the side of the limiting part 122 facing the second surface 112 is coated with a high-temperature resistant (≥200℃), seawater corrosion resistant pressure-sensitive adhesive or an expanding fire-retardant sealant. After removing the release paper, it is directly pressed onto the second surface 112, and the adhesive layer cures to form a sealed connection. Alternatively, the limiting part 122 can extend in a circumferential direction with multiple arc-shaped elastic claws, the outer diameter of which is slightly larger than the binding hole 113 in its natural state; during installation, the compressed claws pass through the binding hole 113 and spring back and unfold below the second surface 112, with the claw ends abutting against the lower surface of the second surface 112 to achieve self-locking.

[0075] The structure inside the binding hole 113 constitutes the binding device 130.

[0076] This embodiment provides another arrangement of the sealing device 120 and the binding device 130. The binding device 130 is disposed in the binding hole 113. The binding device 130 can be formed by forming a structure similar to the mounting part on the mounting member 133 described above in the binding hole 113.

[0077] The limiting part 122 is directly connected to the second surface 112, and the sealing device 120 can be installed or removed independently without the need for simultaneous operation of the binding device 130, which helps to shorten the fire emergency response time. The elimination of intermediate connecting parts such as the bracket 131, threaded rod, and nut reduces the number of parts and assembly steps, which helps to reduce equipment costs.

[0078] Furthermore, in this embodiment, the blocking function and the lashing function are decoupled, so a failure or maintenance of either system does not affect the normal operation of the other. The entire installation process of the blocking device 120 is completed below the deck, without affecting vehicle passage, parking, and lashing operations on the first deck 111.

[0079] refer to Figure 4 In some embodiments, the sealing device 120 includes a main body 121, within which a receiving space 1211 is formed. Thus, the receiving space 1211 provides a temporary storage area for liquids (such as foam effluent, seawater condensate, and flushing wastewater) that may accumulate during the fire extinguishing process, reducing the overall weight of the sealing device 120 and facilitating its handling and installation.

[0080] Along the direction away from the second surface 112 along the axial direction of the binding hole 113, the cross-sectional area of ​​the accommodating space 1211 gradually decreases. For example, the accommodating space 1211 can be formed into a hemispherical structure, or it can be formed into a trumpet-shaped structure or a cone-shaped structure that is larger at the top and smaller at the bottom. The accommodating space 1211 forms a converging cavity. When a fire occurs above the plate 110 and fire extinguishing agent is sprayed for fire extinguishing, the fire extinguishing agent is confined in the converging cavity and will not spread to the adjacent area along the second surface 112. During foam fire extinguishing, the converging cavity can temporarily store the agent and release it slowly, thereby prolonging the immersion time of the chassis.

[0081] Understandably, in some embodiments, in the scheme where the limiting part 122 and the second surface 112 are magnetically engaged, when the first surface 111 of the deck device 100 is being cleaned, the dirt can be directly swept into the sealing device 120. After cleaning, the sealing device 120 can be removed and the dirt poured out, which helps to improve the cleaning efficiency of the deck device 100.

[0082] refer to Figure 2 and Figure 5 According to some embodiments of the present invention, the main body 121 has a plurality of drip holes 1212 at one end axially away from the second surface 112 along the lashing hole 113. The drip holes 1212 provide a controllable discharge channel for liquids (such as condensate, rinsing residue, and foam residue) accumulated in the accommodating space 1211, preventing long-term liquid retention from causing corrosion, mold growth, or freezing and cracking of the sealing device 120 in winter. This keeps the area below the deck dry in non-fire conditions, extending the lifespan of the deck device 100 and the hull. The plurality of drip holes 1212 are arranged around the axis of the lashing hole 113 to achieve 360° uniform drainage, avoiding water accumulation on one side due to ship tilting; maintaining the structural force symmetry of the sealing device 120 during the drainage process, preventing uneven loading or vibration caused by local scouring.

[0083] The diameter D of the drip hole 1212 satisfies: 0.1mm ≤ D ≤ 2mm. For example, the diameter D of the drip hole 1212 can be 0.1mm, 0.5mm, 1mm, 1.5mm or 2mm. Of course, the diameter D of the drip hole 1212 can also be other values, and this application does not limit it.

[0084] On the one hand, the aperture of the drip hole 1212 should not be too large, which would cause excessive leakage of extinguishing agents such as foam and aerogel under pressure, making it difficult to maintain effective accumulation and ensuring the extinguishing effect in a fire. On the other hand, the aperture of the drip hole 1212 should not be too small, ensuring that the drip hole 1212 has basic flow capacity, preventing long-term accumulation of seawater condensate or cleaning water, reducing electrochemical corrosion, and preventing the drip hole 1212 from being blocked by seawater salt crystals or dust.

[0085] In some embodiments, the sealing device 120 is a lightweight metal component. For example, the sealing device 120 may include at least one of aluminum alloy, magnesium alloy, or titanium alloy, which helps reduce the weight of the sealing device 120 and facilitates rapid installation and handling by manual labor or robots below the deck. While ensuring sufficient strength and rigidity, the lightweight sealing device 120 helps reduce the impact on localized loads on the deck. The metal structure has good thermal conductivity, which helps to dissipate heat promptly during a fire, preventing localized overheating that could damage or cause failure of the sealing device 120.

[0086] In some embodiments, a sealing layer is provided between the limiting portion 122 and the second surface 112 of the sealing device 120. The sealing layer may include at least one of a rubber gasket, a silicone ring, a polytetrafluoroethylene (PTFE) sheet, or an intumescent fire-resistant sealing material. The sealing layer fills the microscopic unevenness between the limiting portion 122 and the second surface 112, eliminating leakage gaps and forming a continuous, highly conforming sealing interface when the limiting portion 122 is pressed or adsorbed, effectively blocking the leakage of extinguishing agent.

[0087] Among them, some sealing materials (intumescent fireproof sealing materials) increase in volume after being heated, further enhancing their sealing performance under fire conditions.

[0088] In some embodiments, the surface of the sealing device 120 is coated with a corrosion-resistant layer, which may be at least one of a micro-arc oxidation film, an anodic oxidation layer, an epoxy coating, a zinc-aluminum-magnesium plating layer, or a ceramic coating. This helps to resist electrochemical corrosion in the high humidity and high salt spray environment of the ocean, extending the service life of the sealing device 120; it also improves the surface hardness and wear resistance of the sealing device 120, preventing scratch damage during installation and disassembly.

[0089] Some coatings (such as ceramic coatings) also have high-temperature resistance, making them suitable for high-temperature scenarios in new energy vehicle fires.

[0090] Secondly, embodiments of this application also provide a roll-on / roll-off ship, including the aforementioned deck device 100.

[0091] The roll-on / roll-off ship of this application, due to the use of the aforementioned deck device 100, allows for faster accumulation of extinguishing agent at the burning vehicle in the event of a fire, resulting in a better fire extinguishing effect and improving safety during vehicle transportation.

[0092] Thirdly, this application also provides a fire extinguishing method applicable to the aforementioned roll-on / roll-off ship.

[0093] Ro-Ro ships may also include monitoring systems, cofferdam devices, and fire suppression systems, and the method may include the following steps:

[0094] The monitoring system received a signal from the abnormal vehicle;

[0095] The cofferdam was activated, forming a temporary barrier around the malfunctioning vehicle.

[0096] Fire extinguishing equipment sprays extinguishing agents into the temporary enclosure to extinguish the fire.

[0097] The fire extinguishing method of this application includes a monitoring system that can be a BMS (Battery Management System) with dual-spectrum audible and visual alarms. The containment device is made of flexible fire-resistant material (such as ceramic fiber cloth with a silicone rubber coating) and has an deployable annular curtain-like structure. Normally, it is stored in a storage tank at the edge of the deck or next to the vehicle. When an abnormal situation occurs in the vehicle (such as abnormal temperature inside the battery pack), the containment device is deployed manually or automatically, surrounding the abnormal vehicle (chassis) to form a temporary barrier. The fire extinguishing system can be a foam generator or an aerogel spraying device, which can directionally spray extinguishing agent into the area inside the barrier.

[0098] When the dual-spectrum camera detects an abnormality in the battery pack (such as an abnormal temperature) detected by the vehicle's BMS system, triggering the vehicle's hazard lights and horn, the emergency procedure is automatically activated; the dike device quickly deploys, forming a closed or semi-closed enclosure around the vehicle's tires and chassis; at the same time, the fire extinguishing system is activated, spraying fire extinguishing agents into the dike.

[0099] The extinguishing agent accumulates within the containment dike, attempting to penetrate downwards to the bottom of the vehicle and the area of ​​the lashing hole 113. Since the sealing device 120 has sealed the lower end of the lashing hole 113, the extinguishing agent cannot leak through the hole to the lower deck. The extinguishing agent continues to accumulate under the vehicle chassis, eventually completely submerging key fire sources such as the power battery pack, achieving efficient cooling and suffocation fire suppression.

[0100] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0101] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A deck device (100), characterized in that, Located on a roll-on / roll-off ship, the deck assembly (100) includes: The plate (110) includes a first surface (111) and a second surface (112) along the thickness direction. The first surface (111) is used for parking vehicles. The plate (110) is provided with a binding hole (113) that runs through the thickness direction. A sealing device (120) is disposed on the second surface (112) and fixedly installed with the plate (110). The sealing device (120) is used to seal the binding hole (113). A tying device (130) is provided in the tying hole (113) for connecting a hook on a tying strap that passes through the vehicle tire.

2. The deck device (100) according to claim 1, characterized in that, The binding device (130) includes a bracket (131), the bracket (131) includes a main rod (132), the main rod (132) includes a connecting end (132a) and a limiting end (132b) along the thickness direction of the plate (110), the sealing device (120) is connected to the connecting end (132a), the limiting end (132b) is provided with a mounting member (133), the mounting member (133) has an outer edge (1331) along its own radial direction, at least a portion of the structure of the outer edge (1331) abuts against the first surface (111).

3. The deck device (100) according to claim 2, characterized in that, The mounting member (133) has an inner edge (1332) along its own radial direction, at least a portion of the inner edge (1332) forming a mounting portion for connection with a hook, the projection of the mounting portion in a reference plane located within the projection outline of the binding hole (113) in the reference plane, the reference plane being perpendicular to the axis of the binding hole (113).

4. The deck device (100) according to claim 2, characterized in that, The limiting end (132b) is provided with at least one crossbar (134), the crossbar (134) being perpendicular to the axial direction of the binding hole (113), and the crossbar (134) being connected to the inner edge (1332) of the mounting member (133); and / or, A connecting rod (135) is provided at one end of the crossbar (134) away from the limiting end (132b). The connecting rod (135) extends obliquely along the axial direction of the binding hole (113) and is fixedly connected to the mounting part (133).

5. The deck device (100) according to claim 2, characterized in that, The connecting end (132a) is provided with threads, the sealing device (120) is provided with a mounting hole, the connecting end (132a) passes through the mounting hole, and the portion of the connecting end (132a) passing through the mounting hole is provided with a nut (136). The sealing device (120) includes a main body (121), a portion of the main body (121) protruding circumferentially to form a limiting part (122), the limiting part (122) extending radially beyond the diameter of the binding hole (113), and the limiting part (122) abutting against the second surface (112).

6. The deck device (100) according to claim 1, characterized in that, The sealing device (120) includes a main body (121), the main body (121) is provided with a limiting part (122), the limiting part (122) extends radially beyond the diameter of the binding hole (113), and the limiting part (122) is connected to the second surface (112); The portion of the structure within the binding hole (113) constitutes the binding device (130).

7. The deck device (100) according to any one of claims 1-6, characterized in that, The sealing device (120) includes a main body (121) and a receiving space (1211) is formed in the main body (121). The cross-sectional area of ​​the receiving space (1211) gradually decreases along the direction away from the second surface (112) along the axial direction of the binding hole (113).

8. The deck device (100) according to claim 7, characterized in that, The main body (121) has a plurality of drip holes (1212) at one end away from the second surface (112) along the axial direction of the binding hole (113), and the plurality of drip holes (1212) are arranged around the axis of the binding hole (113). The diameter D of the drip hole (1212) satisfies: 0.1mm≤D≤2mm.

9. The deck device (100) according to any one of claims 1-6, characterized in that, The sealing device (120) is a lightweight metal component; and / or, A sealing layer is provided between the limiting part (122) of the sealing device (120) and the second surface (112); and / or, The sealing device (120) is coated with a corrosion-resistant layer.

10. A roll-on / roll-off ship, characterized in that, Includes the deck device (100) according to any one of claims 1-9.

11. A fire extinguishing method, characterized in that, Applied to the roll-on / roll-off (Ro-Ro) vessel as described in claim 10, the Ro-Ro vessel including a monitoring system, a cofferdam device, and a fire extinguishing system, the method includes: The monitoring system receives signals from abnormal vehicles; The cofferdam device was deployed, forming a temporary barrier around the abnormal vehicle; The fire extinguishing device sprays fire extinguishing agent into the temporary enclosure to extinguish the fire.

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