Fire extinguishing device for roll-on-roll-off ship

Abstract

The utility model belongs to the technical field of ships, and particularly discloses a fire extinguishing device for a roll-on-roll-off ship, which comprises a sky rail, a nitrogen generator and a gas hood. A mounting frame is slidably arranged on the sky rail, and the nitrogen generator is arranged on the mounting frame. The gas hood is made of a flexible material, the gas hood is connected with the nitrogen generator, the gas hood comprises a fireproof layer, an isolating layer and a melting layer, the melting layer is coated outside the isolating layer, the fireproof layer is connected with the isolating layer, and a gas storage space is defined between the fireproof layer and the isolating layer. The nitrogen generator can quickly generate nitrogen and fill the nitrogen into the gas storage space of the gas hood, the gas hood covers a fire object in the gas hood, and then a large amount of nitrogen is released, so that the fire object is in a nitrogen environment, oxygen is isolated from being in contact with the fire object, and the purpose of instant fire extinguishing is achieved. And meanwhile, the gas hood controls the dangerous case in a small-range space of a fire object, fire spreading is restrained, and affiliated secondary disasters cannot be generated.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a fire extinguishing device for a ro-ro ship. Background Art

[0002] A ro-ro ship is a "ship" that loads and unloads cargo vehicles in a ro-ro manner through a ramp. The concept of a ro-ro ship originated from military tanks or vehicle landing craft. There are openings and ramps on both sides and the stern of the ro-ro ship for vehicles to get on and off the ship. The upper deck of the ro-ro ship is flat and through, there are multiple decks under the upper deck, and the decks are connected by ramp roads or lifting platforms for vehicles to pass through. The superstructure is located at the bow or stern, the engine room is located under the stern deck, the chimney is located on both sides, the opening is generally located at the stern, and there is a large articulated ramp that slopes to the shore. The loading and unloading efficiency of the ro-ro ship is very high, and ro-ro ships are widely used in the world for car transportation, including new energy vehicles.

[0003] Generally speaking, new energy vehicles are parked on the deck of the vehicle compartment. According to the requirements of national mandatory standards, after white smoke appears due to thermal runaway of the battery cells of new energy vehicles, it must be ensured that there will be no fire or explosion within 5 minutes. However, only for the case of thermal runaway of a single battery cell, in actual situations, due to the chain reaction, the thermally runaway battery cell will ignite the adjacent battery cells, and the new thermally runaway battery cells will feedback and accelerate the thermal runaway of the original battery cells. Therefore, from the moment the battery cell emits white smoke to complete combustion, it may be shortened to 3 minutes, or even complete combustion may occur in a shorter time.

[0004] To ensure safety, it is necessary to quickly respond to the battery cells emitting white smoke for treatment to avoid fire and explosion of new energy vehicles. In traditional fire extinguishing solutions, the water mist extinguishing method is generally adopted, which uses water mist particles to reduce the fire field temperature, isolate oxygen, and inhibit heat radiation for fire extinguishing. It can effectively cool the surface of new energy vehicles and prevent heat diffusion. However, it cannot eliminate the chemical reactions inside the battery cells and reduce the internal temperature of the battery cells, so it can only temporarily suppress the fire and cannot completely extinguish the flame. And when using the water mist extinguishing method, since the fire is not extinguished, a large amount of water needs to be sprayed continuously, resulting in a large area of water accumulation in the vehicle compartment, which may soak other vehicles and cause short circuits in other vehicles, resulting in secondary fire and explosion. In addition, serious water accumulation will also affect the center of gravity of the ship, and may even cause the ship to capsize in severe cases. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fire extinguishing device for a ro-ro ship, which can quickly generate nitrogen in the gas hood and enclose the object on fire in the gas hood, so as to isolate the contact between oxygen and the object on fire, achieve the purpose of instant fire extinguishing, and will not produce additional secondary disasters.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The present utility model provides a fire extinguishing device for a ro-ro ship, which is used to extinguish a fire on an object placed on the deck of the ship's cabin. The fire extinguishing device for the ro-ro ship includes:

[0008] A sky rail, which is arranged on the top wall surface of the ship's cabin;

[0009] A nitrogen generator, which is used to generate nitrogen. The nitrogen generator is arranged on a mounting frame, and the mounting frame is slidably connected to the sky rail;

[0010] An air hood, which is made of a flexible material. The air hood is connected to the nitrogen generator. The air hood includes a fireproof layer, an isolation layer and a melting layer. The melting layer is coated outside the isolation layer, and the fireproof layer is connected to the isolation layer. A gas storage space is formed between the fireproof layer and the isolation layer, and the nitrogen generator can introduce nitrogen into the gas storage space;

[0011] When the fire extinguishing device for the ro-ro ship is not in use, the air hood is folded and housed on the mounting frame. After the fire extinguishing device for the ro-ro ship is activated, the nitrogen generator is triggered and the generated nitrogen is filled into the gas storage space. The air hood unfolds and covers the outside of the fire object, and the melting layer and the isolation layer are located on the side close to the fire object.

[0012] Optionally, the nitrogen generator includes a reaction chamber and an igniter. The reaction chamber is arranged on the mounting frame, the igniter is located in the reaction chamber, sodium azide is arranged in the reaction chamber, and the igniter is used to ignite the sodium azide.

[0013] Optionally, the reaction chamber has an air outlet, and an air inlet is arranged on the fireproof layer. The air outlet, the air inlet and the gas storage space are sequentially communicated.

[0014] Optionally, a fixing part is arranged on the circumferential direction of the reaction chamber at the air outlet. The air inlet is arranged at the center of the air hood, and the circumferential side wall of the air inlet is connected to the fixing part.

[0015] Optionally, the fixing part is a fixing flange extending towards the fire object side, and the circumferential side wall of the air inlet is bonded to the fixing flange; or

[0016] The fire extinguishing device for the ro-ro ship further includes a bundling member, and the bundling member bundles and fixes the circumferential side wall of the air inlet on the fixing flange.

[0017] Optionally, a housing part is arranged on the side of the mounting frame facing the fire object, and the circumferential edge of the air hood is folded and housed in the housing part.

[0018] Optionally, a clamping protrusion is provided on the side of the mounting bracket facing the fire object. A clamping groove is formed between the clamping protrusion and the mounting bracket, and the clamping groove serves as the receiving portion.

[0019] Optionally, the fireproof layer is made of carbon fiber, the isolation layer is made of nylon, and the melting layer is made of silica gel.

[0020] Optionally, the roll-on / roll-off ship fire extinguishing device further includes a controller and a driving member. The driving member is arranged on the overhead rail and is in transmission connection with the mounting bracket. An infrared monitor is provided on the overhead rail, and the infrared monitor, the driving member, and the nitrogen generator are all in communication connection with the controller.

[0021] Optionally, the overhead rail includes a transverse rail and a longitudinal rail. The transverse rail and the longitudinal rail are arranged in an alternating manner, and the mounting bracket is slidably connected to both the transverse rail and the longitudinal rail.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The present utility model provides a roll-on / roll-off ship fire extinguishing device, which includes an overhead rail, a nitrogen generator, and a gas hood. The overhead rail is arranged on the top wall surface of the ship's cabin. The nitrogen generator is arranged on the mounting bracket, and the mounting bracket is slidably connected to the overhead rail. Nitrogen can be generated by the nitrogen generator. The gas hood is made of a flexible material and is connected to the nitrogen generator. The gas hood includes a fireproof layer, an isolation layer, and a melting layer. The melting layer is coated outside the isolation layer, and the fireproof layer and the isolation layer are connected. A gas storage space is formed between the fireproof layer and the isolation layer. The nitrogen generated by the nitrogen generator can be filled into the gas storage space. During use, the nitrogen generator and the gas hood are moved above the fire object through the overhead rail and the mounting bracket. The nitrogen generator fills the generated nitrogen into the gas storage space, and the gas hood unfolds and covers the outside of the fire object. The melting layer and the isolation layer are located on the side close to the fire object. The melting layer is damaged within a few seconds after being heated, and then the isolation layer is damaged. The nitrogen in the gas storage space of the gas hood is quickly released and comes into contact with the fire object. The fireproof layer remains intact and completely covers the outside of the fire object, which can isolate the oxygen in the outside world from the fire object, thereby suppressing the continuous burning of the fire object, and the flame of the fire object is quickly extinguished.

[0024] By adopting the above-mentioned roll-on / roll-off ship fire extinguishing device, nitrogen can be quickly generated into the gas storage space of the gas hood, and the fire object can be covered in the gas hood. Then, a large amount of nitrogen is released, so that the fire object is in a nitrogen environment, isolating the contact between oxygen and the fire object, achieving the purpose of instant fire extinguishing. And the gas hood controls the danger within a small space of the fire object, inhibits the spread of the fire, and at the same time does not produce secondary disasters. Description of the Drawings

[0025] Figure 1It is a schematic structural diagram of the fire extinguishing device for roll-on / roll-off ships provided in the embodiment of the present utility model (not enabled);

[0026] Figure 2 It is a schematic structural diagram of the fire extinguishing device for roll-on / roll-off ships provided in the embodiment of the present utility model (after being enabled);

[0027] Figure 3 It is a schematic structural diagram of the nitrogen generator and the gas hood provided in the embodiment of the present utility model.

[0028] In the figure:

[0029] 10. Object on fire; 20. Deck; 100. Sky track; 110. Mounting rack; 200. Nitrogen generator; 210. Reaction chamber; 211. Air outlet; 212. Fixed flange; 220. Igniter; 230. Sodium azide; 300. Gas hood; 301. Gas storage space; 310. Fireproof layer; 311. Air inlet; 312. Circumferential side wall; 320. Isolation layer; 330. Melting layer; 400. Binding piece. Detailed implementation manners

[0030] The following further elaborates on the present utility model in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and not for limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0031] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but are in contact through other features therebetween. Moreover, the first feature being "above", "above the", and "on the" second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below the", and "under the" second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower horizontal height than the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] As Figure 1 and Figure 2 shown, this embodiment provides a fire extinguishing device for a ro-ro ship, which is used to extinguish a fire object 10 placed on the deck 20 of the ship's cabin. The fire extinguishing device for the ro-ro ship includes a sky rail 100, a nitrogen generator 200, and a gas hood 300. Among them, the sky rail 100 is arranged on the top wall surface of the ship's cabin, the nitrogen generator 200 is arranged on the mounting frame 110, the mounting frame 110 is slidably connected to the sky rail 100, and nitrogen can be generated by the nitrogen generator 200. The gas hood 300 is made of a flexible material, the gas hood 300 is connected to the nitrogen generator 200, the gas hood 300 includes a fireproof layer 310, an isolation layer 320, and a melting layer 330. The melting layer 330 is coated outside the isolation layer 320, the fireproof layer 310 is connected to the isolation layer 320, and a gas storage space 301 is formed between the fireproof layer 310 and the isolation layer 320. The nitrogen generated by the nitrogen generator 200 can be filled into the gas storage space 301.

[0035] When the fire extinguishing device for the ro-ro ship is not in use, the gas hood 300 is folded and housed on the mounting frame 110, occupying a small space and not affecting the placement space of the ship's cabin. When there is a fire object 10 on the deck 20, the fire extinguishing device for the ro-ro ship is activated. The nitrogen generator 200 and the gas hood 300 are moved above the fire object 10 through the sky rail 100 and the mounting frame 110. At this time, the nitrogen generator 200 is triggered and the generated nitrogen is filled into the gas storage space 301. The gas hood 300 unfolds and covers outside the fire object 10. The melting layer 330 and the isolation layer 320 are located on the side close to the fire object 10. The melting layer 330 is damaged within a few seconds after being heated, and then the isolation layer 320 is damaged. The nitrogen in the gas storage space 301 of the gas hood 300 is quickly released and contacts the fire object 10. The fireproof layer 310 remains intact. Since the inner layer (the melting layer 330 and the isolation layer 320) of the gas hood 300 is damaged, the gas hood 300 loses its support, and the fireproof layer 310 of the gas hood 300 will collapse and completely cover the outside of the fire object 10, isolating the outside oxygen from the fire object 10. When the oxygen enclosed in the gas hood 300 is consumed, the gas hood 300 is filled with nitrogen. Since nitrogen is an inert gas, it can inhibit the continuous burning of the fire object 10, and the flame of the fire object 10 is quickly extinguished, playing a role in flame retardancy through the fireproof layer 310.

[0036] By adopting the above-mentioned fire extinguishing device for ro-ro ships, it can quickly generate nitrogen into the gas storage space 301 of the gas hood 300, enclose the accident vehicle within the gas hood 300, and then release a large amount of nitrogen, so that the burning object 10 is in a nitrogen environment, isolating oxygen from contacting the burning object 10, achieving the purpose of instant fire extinguishing. Moreover, the gas hood 300 of the fire extinguishing device for ro-ro ships controls the danger within the small space of the burning object 10, inhibits the spread of the fire, and at the same time does not generate additional secondary disasters (such as the water accumulation problem caused by the water mist fire extinguishing method in the prior art).

[0037] Exemplarily, the burning object 10 in this embodiment can be a new energy vehicle. When a fire danger is detected, it takes about 12.5 s for the mounting frame 110 to move along the overhead rail 100 to above the new energy vehicle. After that, it takes about 1 s for the nitrogen generator 200 to fill nitrogen into the gas hood 300 and expand the gas hood 300. Taking the height between the overhead rail 100 and the roof of the new energy vehicle to be about 1.5 m as an example, it takes 2 s for the gas hood 300 to completely cover the new energy vehicle. After that, within a few seconds, the isolation layer 320 and the melting layer 330 of the gas hood 300 are damaged, releasing the nitrogen in the gas storage space 301, realizing the functions of fire retardancy and fire extinguishing. The whole process takes within 1 minute, with a very rapid response, being able to quickly extinguish the fire, and having high safety and reliability. Of course, the burning object 10 can also be other items in danger. This embodiment does not limit this, and the fire extinguishing device for ro-ro ships can also play a very good role in fire extinguishing and fire retardancy.

[0038] See Figure 3 , the nitrogen generator 200 in this embodiment includes a reaction chamber 210 and an igniter 220. The reaction chamber 210 is arranged on the mounting frame 110, the igniter 220 is located inside the reaction chamber 210, and sodium azide 230 is provided inside the reaction chamber 210 (sodium azide 230 is a white crystalline solid at room temperature and has stable properties). The igniter 220 is used to ignite sodium azide 230. Further, the reaction chamber 210 has an air outlet 211, and an air inlet 311 is provided on the fireproof layer 310 of the gas hood 300. The air outlet 211, the air inlet 311 and the gas storage space 301 are sequentially connected. When the burning object 10 encounters a danger, the igniter 220 ignites sodium azide 230, and sodium azide 230 quickly decomposes to generate a large amount of nitrogen. The nitrogen enters the gas storage space 301 through the air outlet 211 and the air inlet 311 in sequence, and then the gas hood 300 is integrally expanded. At this time, the gas hood 300 can cover the outside of the burning object 10, playing a role in isolating oxygen and blocking the combustion of the flame.

[0039] As an optional solution, a fixing portion is provided on the reaction chamber 210 at the circumference of the gas outlet 211, the gas inlet 311 is arranged at the center of the gas hood 300, and the circumferential side wall 312 of the gas inlet 311 is connected to the fixing portion. In some embodiments, the fixing portion can be a fixing flange 212 extending toward the side of the object 10 on fire at the gas outlet 211 of the reaction chamber 210, and the circumferential side wall 312 of the gas inlet 311 of the gas hood 300 is bonded to the fixing flange 212, and the gas hood 300 is fixedly connected to the nitrogen generator 200 by bonding, and at the same time, the sealing between the two is ensured to be good to prevent nitrogen leakage.

[0040] Alternatively, in other embodiments, the ro-ro ship fire extinguishing device further includes a binding member 400, through which the circumferential side wall 312 of the air inlet 311 of the gas hood 300 is bound and fixed to the fixed flange 212 of the reaction chamber 210, and the gas hood 300 and the nitrogen generator 200 are fixedly connected, while ensuring good sealing between the two. Exemplarily, the binding member 400 can be a plastic cable tie, a steel belt, or other rope-like objects that can bind and fix the two.

[0041] Furthermore, in order to facilitate the storage and fixing of the gas hood 300, so as to reduce the occupied space of the ro-ro ship fire extinguishing device before activation and to miniaturize its volume, a receiving portion (not shown) can be provided on the side of the mounting frame 110 facing the object on fire 10, and the circumferential edge of the gas hood 300 is folded and received in the receiving portion.

[0042] For example, as an optional implementation, a snap-in protrusion may be provided on the side of the mounting frame 110 facing the object on fire 10, and a snap-in groove is formed between the snap-in protrusion and the mounting frame 110, and the snap-in groove is the above-mentioned receiving portion, and the peripheral edge of the gas hood 300 can be snapped in the snap-in groove after being folded. When the nitrogen generator 200 fills the gas storage space 301 of the gas hood 300 with nitrogen, the gas expands and opens the gas hood 300, and at this time, the peripheral edge of the gas hood 300 escapes from the snap-in groove and extends to the surroundings, so that the object on fire 10 can be covered inside the gas hood 300, which plays a role in isolating oxygen and preventing combustion.

[0043] Of course, in other embodiments, the circumferential edge of the gas hood 300 can also be fixed to the mounting frame 110 by means of a snap connection. When the nitrogen generator 200 fills the gas storage space 301 of the gas hood 300 with nitrogen, the gas expands and opens the gas hood 300. At this time, the snap connection between the circumferential edge of the gas hood 300 and the mounting frame 110 is released, so that the gas hood 300 can extend in all directions and cover the burning object 10 inside the gas hood 300, thereby isolating oxygen and preventing combustion.

[0044] Continue to see Figure 1 and Figure 2, in this embodiment, the fireproof layer 310 can be made of carbon fiber. Carbon fiber can withstand high temperatures of 3000 °C without damage and has good high-temperature resistance, thus ensuring that nitrogen is enveloped inside the gas hood 300 and will not escape, thereby achieving a good effect of isolating oxygen and fire retardancy. Further, the isolation layer 320 can be made of nylon, and the melting layer 330 coated on the isolation layer 320 is silica gel. Silica gel can protect nylon from damage in a short time. After a few seconds of contact between the silica gel and the flame or high-temperature gas, the melting layer 330 will be damaged, so that the nylon will be exposed to the flame or high-temperature gas. After that, the nylon will be burned to form damage, and the nitrogen in the gas storage space 301 of the gas hood 300 will be discharged, so that the object on fire 10 is surrounded by a nitrogen environment, thereby quickly suppressing the spread of the fire and quickly extinguishing the flame. In addition, after the nylon is burned, a viscous substance similar to asphalt will be formed. After the viscous substance covers the object on fire 10, it will seal the object on fire 10, further playing a role in fire retardancy. And in this embodiment, carbon fiber, nylon, and silica gel are of low cost, low implementation difficulty, and carbon fiber can be reused.

[0045] Further, the roll-on / roll-off ship fire extinguishing device in this embodiment can achieve automatic monitoring and extinguishing, with a high degree of intelligence, more time-saving and labor-saving, and at the same time ensuring that personal safety is not damaged. Specifically, the roll-on / roll-off ship fire extinguishing device further includes a controller and a driving member. The driving member is arranged on the overhead rail 100 and is in transmission connection with the mounting frame 110. An infrared monitor is provided on the overhead rail 100. The infrared monitor, the driving member, and the nitrogen generator 200 are all communicatively connected to the controller. Whether a fire breaks out can be monitored through the infrared monitor, and the location of the object on fire 10 can be confirmed. After the location information of the object on fire 10 is transmitted to the controller, the controller can control the driving member to start, and move the mounting frame 110 along the overhead rail 100 to above the object on fire 10 through the driving member. Then the controller controls the igniter 220 to ignite the sodium azide 230, and the nitrogen generator 200 is triggered. Nitrogen can be introduced into the gas storage space 301 of the gas hood 300 through the nitrogen generator 200. After the gas hood 300 is unfolded, it covers the outside of the object on fire 10, thereby realizing automatic fire extinguishing. The control principle of the specific controller is a mature technology in the prior art and will not be elaborated here.

[0046] Optionally, the overhead rail 100 in this embodiment includes a transverse rail and a longitudinal rail, and both the transverse rail and the longitudinal rail can be provided in multiple numbers. The multiple transverse rails and the multiple longitudinal rails are arranged in a staggered manner, and the mounting frame 110 is slidably connected to the multiple transverse rails and the multiple longitudinal rails. By providing the transverse rails and the longitudinal rails arranged in a crisscross manner, the coverage range of the overhead rail 100 is large. When a fire breaks out at any position on the deck 20 in the cabin, the controller can control the driving member to drive the mounting frame 110 to move above the object on fire 10, with higher controllability and greater flexibility.

[0047] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly explaining the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A fire extinguishing device for a roll-on / roll-off ship, which is used to extinguish a fire object (10) placed on the deck (20) of the ship's cabin, and is characterized in that, The roll-on / roll-off ship fire extinguishing device includes: A sky track (100) provided on the top wall surface of the cabin; A nitrogen generator (200) for generating nitrogen, the nitrogen generator (200) is provided on a mounting frame (110), and the mounting frame (110) is slidably connected to the sky track (100); An air hood (300) made of a flexible material, the air hood (300) is connected to the nitrogen generator (200), the air hood (300) includes a fireproof layer (310), an isolation layer (320) and a melting layer (330), the melting layer (330) is coated outside the isolation layer (320), the fireproof layer (310) is connected to the isolation layer (320), and a gas storage space (301) is formed between the fireproof layer (310) and the isolation layer (320), and the nitrogen generator (200) can introduce nitrogen into the gas storage space (301); When the roll-on / roll-off ship fire extinguishing device is not in use, the air hood (300) is folded and housed on the mounting frame (110). After the roll-on / roll-off ship fire extinguishing device is activated, the nitrogen generator (200) is triggered and the generated nitrogen is filled into the gas storage space (301), the air hood (300) unfolds and covers the outside of the fire object (10), and the melting layer (330) and the isolation layer (320) are located on the side close to the fire object (10).

2. The fire extinguishing device for a ro-ro ship according to claim 1, characterized in that, The nitrogen generator (200) includes a reaction chamber (210) and an igniter (220), the reaction chamber (210) is provided on the mounting frame (110), the igniter (220) is located inside the reaction chamber (210), sodium azide (230) is provided in the reaction chamber (210), and the igniter (220) is used to ignite the sodium azide (230).

3. The fire extinguishing device for ro-ro ships according to claim 2, characterized in that, The reaction chamber (210) has an air outlet (211), and the fireproof layer (310) is provided with an air inlet (311), and the air outlet (211), the air inlet (311) and the gas storage space (301) are sequentially communicated.

4. The fire extinguishing device for a roll-on / roll-off ship according to claim 3, wherein, A fixing part is provided on the circumference of the reaction chamber (210) at the air outlet (211), the air inlet (311) is provided at the center of the air hood (300), and the circumferential side wall (312) of the air inlet (311) is connected to the fixing part.

5. The fire extinguishing device for a roll-on / roll-off ship according to claim 4, characterized in that, The fixing part is a fixing flange (212) extending towards the fire object (10), and the circumferential side wall (312) of the air inlet (311) is bonded to the fixing flange (212); or The roll-on / roll-off ship fire extinguishing device further includes a bundling member (400), and the bundling member (400) bundles and fixes the circumferential side wall (312) of the air inlet (311) on the fixing flange (212).

6. The fire extinguishing device for a roll-on / roll-off ship according to claim 1, wherein, A housing part is provided on the side of the mounting frame (110) facing the fire object (10), and the circumferential edge of the air hood (300) is folded and housed in the housing part.

7. The fire extinguishing device for a ro-ro ship according to claim 6, characterized in that, One side of the mounting bracket (110) facing the fire object (10) is provided with a clamping protrusion, and a clamping groove is formed between the clamping protrusion and the mounting bracket (110), and the clamping groove is the accommodating portion.

8. The fire extinguishing device for a ro-ro ship according to any one of claims 1-7, characterized in that, The fireproof layer (310) is made of carbon fiber, the isolation layer (320) is made of nylon, and the melting layer (330) is made of silica gel.

9. The fire extinguishing device for a roll-on / roll-off ship according to any one of claims 1-7, characterized in that, The roll-on / roll-off ship fire extinguishing device further includes a controller and a driving member. The driving member is arranged on the overhead rail (100) and is in transmission connection with the mounting bracket (110). An infrared monitor is arranged on the overhead rail (100), and the infrared monitor, the driving member and the nitrogen generator (200) are all in communication connection with the controller.

10. The fire extinguishing device for a roll-on / roll-off ship according to any one of claims 1-7, characterized in that, The overhead rail (100) includes a transverse rail and a longitudinal rail. The transverse rail and the longitudinal rail are arranged in an alternating manner, and the mounting bracket (110) is slidably connected to both the transverse rail and the longitudinal rail.

Images