Fire extinguishing system and automobile transport ship

Abstract

The embodiment of the utility model provides a fire extinguishing system and an automobile transport ship, and relates to the technical field of automobile carrying fireproof safety. The fire extinguishing system comprises at least two spraying devices, and the two adjacent decks are each provided with at least one spraying device; the thermal runaway vehicle located between the two adjacent decks is sprayed from the top and the bottom through the spraying device; wherein at least one spraying device is used for being installed on the movable deck, and the spraying device can move relative to the movable deck so as to adjust the spraying area, above or below the movable deck, of the spraying device, and therefore when a thermal runaway vehicle appears between the two adjacent layers of decks, spraying can be conducted on the thermal runaway vehicle from the bottom and the top at the same time; and fire extinguishing and cooling can be directly carried out on the battery pack, and generated high-temperature flue gas can be prevented from diffusing towards the surrounding.

Description

Technical Field

[0001] The present application relates to the technical field of fire safety in automobile transportation, and in particular to a fire extinguishing system and an automobile transport ship. Background Art

[0002] With the rapid development of new energy vehicles, the number of new energy vehicles transported by car carriers has also increased significantly. Once a new energy vehicle catches fire during transportation, it is very easy to cause the fire to spread and cause serious casualties and property losses. Therefore, fire risk control of car carriers has become particularly important.

[0003] Car carriers generally include two types of decks: fixed decks and movable decks. The position of the movable deck is adjustable so that the height between two adjacent decks can be adaptively adjusted. During transportation, vehicles are generally parked on the deck of a car carrier. A common fire extinguishing method is to install sprinklers on the side of the deck and on the hull columns. When a fire occurs, sprinklers are used to spray water mist to extinguish the fire.

[0004] However, such an arrangement of the nozzles cannot ensure effective spraying of any thermal runaway vehicle on the deck. Utility Model Content

[0005] The embodiments of the present application provide a fire extinguishing system and a car transport ship to achieve the effect of effectively spraying any thermal runaway vehicle on the deck.

[0006] In a first aspect, an embodiment of the present application provides a fire extinguishing system for extinguishing a fire in a device for storing or transporting vehicles having multiple decks, wherein the multiple decks include at least one movable deck, and the fire extinguishing system includes at least two spraying devices, wherein at least one spraying device is disposed on each of two adjacent decks, so as to spray a thermal runaway vehicle located between the two adjacent decks from the top and the bottom through the spraying device;

[0007] Wherein, at least one of the spray devices is used to be installed on the movable deck, and the spray device can be moved relative to the movable deck to adjust the spraying area of ​​the spray device above or below the movable deck.

[0008] In some possible implementations, a controller is further included, wherein the controller is used to obtain position information of the thermal runaway vehicle and control the first spray device to move to a corresponding area of ​​the thermal runaway vehicle according to the position information.

[0009] In some possible embodiments, the multiple decks also include at least one fixed deck, and at least two of the spray devices include at least one first spray device and at least one second spray device, the first spray device is installed on the movable deck, and the second spray device is installed on the fixed deck.

[0010] In some possible embodiments, a detection device is provided on the first spray device, and the detection device is used to obtain scene information above or below the movable deck. The controller is communicatively connected with the detection device, and the controller is also used to control the movement of the first spray device according to the scene information so that the spraying area of ​​the first spray device covers the thermal runaway vehicle.

[0011] In some possible implementations, the detection device includes at least one infrared camera.

[0012] In some possible implementations, at least one slide rail is further included, wherein the slide rail is connected to the lower surface of the movable deck, and the first spray device moves along the slide rail.

[0013] In some possible implementations, a plurality of the slide rails are arranged side by side, and a distance between adjacent slide rails is 4-8 m.

[0014] In some possible embodiments, the first spray device further includes an electromagnet, which is communicatively connected to the controller. The controller is further configured to control the electromagnet to turn on after the first spray device moves to a corresponding area of ​​the thermal runaway vehicle, so that the electromagnet generates an adsorption force on the slide rail or the movable deck.

[0015] In some possible embodiments, the first spray device also includes at least one first spray body, and the first spray body is provided with a first nozzle and a second nozzle, the first nozzle and the second nozzle are both connected to the delivery pipeline inside the first spray body, and the first nozzle and the second nozzle are relatively arranged on both sides of the first spray body, the first nozzle is used to spray the thermal runaway vehicle below the movable deck, and the second nozzle is used to spray the thermal runaway vehicle above the movable deck.

[0016] In some possible implementations, at least one spray hole is provided on the movable deck, and the nozzle of the second spray head is opposite to the spray hole, or the second spray head is partially inserted into the spray hole.

[0017] In some possible implementations, the second spray device includes at least one second spray body, the second spray body is provided with a third spray head, and the third spray head is connected to a delivery pipeline inside the second spray body.

[0018] In some possible implementations, at least one end of the first spray body and the second spray body is provided with a quick connector, and the quick connector is used to connect to a storage system that supplies spray liquid through a delivery hose.

[0019] In some possible embodiments, at least one protective member is further included, wherein the protective member is installed on the upper surface of the fixed deck, the second spraying device is installed inside the protective member, and the protective member is provided with a spraying groove for spraying the spraying liquid of the third nozzle.

[0020] In some possible embodiments, the protective member is a rubber protective strip, the second spray device is located inside the rubber protective strip, the spray groove is opened on the top of the rubber protective strip, a connecting hole is opened on at least one side of the rubber protective strip, and the delivery hose passes through the connecting hole to be connected to the quick connector.

[0021] In some possible embodiments, a fourth nozzle is further provided on the second spray body, and the fourth nozzle is connected to the delivery pipeline inside the second spray body. The fourth nozzle and the third nozzle are arranged on both sides of the second spray body opposite to each other. A mounting hole penetrating the fixed deck is opened on the fixed deck, and the fourth nozzle is at least partially inserted into the mounting hole. The fourth nozzle is used to spray the thermal runaway vehicle located above the fixed deck, and the third nozzle is used to spray the thermal runaway vehicle located below the fixed deck.

[0022] In some possible implementations, a seal is further included, wherein the seal is configured to seal the installation hole at one end below the fixed deck.

[0023] In some possible embodiments, an avoidance hole is provided in the middle of the seal, one end wall of the avoidance hole is sealedly connected to the second spray body, the other end wall is sealedly connected to the lower surface of the fixed deck, and the avoidance hole is opposite to the mounting hole, so that the fourth nozzle can extend through the avoidance hole into the mounting hole.

[0024] In some possible implementations, the first nozzle, the second nozzle, the third nozzle, and the fourth nozzle are each controlled to be opened and closed by a solenoid valve, and all the solenoid valves are communicatively connected to the controller.

[0025] In a second aspect, an embodiment of the present application provides a car transport ship, comprising at least one movable deck, and also comprising a fire extinguishing system as described in any one of the first aspects above.

[0026] According to the fire extinguishing system and automobile transport ship provided by the embodiment of the present application, the fire extinguishing system includes at least two spraying devices, and at least one spraying device is arranged on each of two adjacent decks of the automobile transport ship, so that the thermal runaway vehicle located between the two adjacent decks is sprayed from the bottom and the top by the spraying device, and spraying from the bottom of the vehicle can cool the battery pack and isolate the bottom area to achieve the effect of suppressing and extinguishing the fire, and spraying from the top of the vehicle can effectively suppress the upward propagation of high-temperature smoke generated during thermal runaway, and prevent it from spreading toward the surroundings or upward through the holes on the deck, and the spraying The liquid can absorb the heat of the high-temperature smoke, quickly reduce the temperature of the cargo yard, and avoid hot water runaway in the surrounding vehicles and vehicles on the upper deck due to excessive temperature, thereby effectively preventing the fire from spreading further. In addition, at least one sprinkler device is installed on the movable deck and can be moved relative to the movable deck. In this way, after the movable deck is adjusted, even if the position and height of the sprinkler device relative to the vehicle under the movable deck change, the sprinkler device's spraying area can be changed by adjusting the position of the sprinkler device, so that the sprinkler device can effectively spray the thermal runaway vehicle, thereby improving the fire control effect of the fire extinguishing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 A schematic diagram of the use status of the fire extinguishing system provided in the embodiment of the present application;

[0029] Figure 2 A schematic diagram of the arrangement of the slide rails on the deck in the fire extinguishing system provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the connection structure between the slide rail and the first spray device in the fire extinguishing system provided in an embodiment of the present application;

[0031] Figure 4 A three-dimensional diagram of a first sprinkler device in a fire extinguishing system provided in an embodiment of the present application;

[0032] Figure 5 for Figure 4 A front view of a first sprinkler device in a fire extinguishing system;

[0033] Figure 6 A perspective view of a first implementation of a second sprinkler device in a fire extinguishing system provided in an embodiment of the present application;

[0034] Figure 7 for Figure 6 A front view of a second sprinkler device in a fire extinguishing system;

[0035] Figure 8 A perspective view of a second implementation of the second sprinkler device in the fire extinguishing system provided in an embodiment of the present application;

[0036] Fig. 9 for Figure 8 A front view of a second sprinkler device in a fire extinguishing system;

[0037] Fig.10 A three-dimensional diagram of a protective member in a fire extinguishing system provided in an embodiment of the present application;

[0038] Fig.11 A perspective view of a third implementation of the second sprinkler device in the fire extinguishing system provided in an embodiment of the present application;

[0039] Fig.12 for Fig.11 Front view of the second sprinkler device in the fire extinguishing system.

[0040] Reference numerals:

[0041] 10-fixed deck; 20-movable deck; 30-thermal runaway vehicle;

[0042] 100-first spray device; 110-first spray body; 120-first nozzle; 130-second nozzle; 140-first solenoid valve; 150-second solenoid valve; 160-driving wheel; 170-electromagnet; 200-second spray device; 210-second spray body; 220-third nozzle; 230-third solenoid valve; 240-fourth nozzle; 250-fourth solenoid valve; 260-fixed foot; 300-slide rail; 400-protective part; 410-spray trough; 420-connecting hole; 500-quick connector; 600-seal; 610-avoidance hole.

[0043] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0045] Glossary:

[0046] Car carrier: a ship specially designed for transporting vehicles, which is generally equipped with multiple decks, including fixed decks and movable decks. The movable deck is generally set between the fixed decks, and the position of the movable deck is adjustable to adjust the distance between it and the adjacent deck according to the parked vehicles, so that it can adapt to the parking of a variety of different vehicles. Each deck is usually connected by an internal ramp, and the deck is usually equipped with fixings and protective equipment to ensure that the vehicle will not move or be damaged during transportation.

[0047] New energy vehicles: refers to vehicles that use new power systems and are completely or mainly driven by new energy. The main types of new energy vehicles currently include pure electric vehicles, plug-in hybrid vehicles, hybrid vehicles, fuel cell vehicles, extended-range electric vehicles, etc. These vehicles generally need to be equipped with battery packs to store and provide electrical energy, and the battery packs are generally arranged under the vehicle's chassis, under the trunk, in the central aisle, under the seats, etc., that is, the battery packs are generally located at the bottom of the vehicle.

[0048] Thermal runaway vehicle: refers to a vehicle whose temperature rises sharply due to battery pack loss of control, producing a large amount of high-temperature smoke, causing fire, explosion or other dangers.

[0049] With the rapid development of new energy vehicles, the number of new energy vehicles transported by car carriers has also increased significantly. Once a new energy vehicle catches fire during transportation, it is very easy to cause the fire to spread and cause serious casualties and property losses. Therefore, it is particularly important to equip car carriers with fire extinguishing systems.

[0050] Some car transport ships choose to install water mist nozzles on both sides of the hull and on the hull columns. When a vehicle experiences thermal runaway, it will be sprayed by the water mist nozzles on the side.

[0051] However, this method has high requirements for the installation of the spray device, especially for the layout inside the cabin. If there are a large number of cargoes or people inside the cabin, it may block the flow of the spray water, resulting in some areas not being effectively sprayed, thus affecting the effect of the spray fire extinguishing. At the same time, for new energy vehicles shipped by sea, new energy vehicles are generally arranged neatly on the deck, and the intervals between each other are small. Spraying from the side through water mist nozzles can only have a certain cooling and fire extinguishing effect on vehicles around the hull, but it has almost no effect on vehicles in other positions. In addition, the thermal runaway of new energy vehicles during sea transportation is caused by battery failure. When the lithium battery is in thermal runaway, it continuously reacts and releases a lot of heat. The lithium battery is installed at the bottom of the vehicle. The side spray has a small coverage of the battery pack, and it cannot effectively and quickly cool down the battery pack that has thermal runaway. Therefore, the side spray has a very weak cooling effect on the battery pack.

[0052] Even if the height and angle of the water mist nozzles installed on the side of the ship and the hull pillars are adjustable to maximize the spray coverage area, the area that can be sprayed on the battery pack at the bottom of the vehicle is still limited due to the height of the vehicle chassis, and the battery pack cannot be effectively cooled.

[0053] In order to avoid the above-mentioned problems, an embodiment of the present application provides a fire extinguishing system and a car transport ship, in which spray devices are arranged on two adjacent decks of the car transport ship. When a vehicle between two adjacent decks has thermal runaway, the spray devices installed on the two decks can spray the thermal runaway vehicle at the same time, that is, the spray device on the deck below the thermal runaway vehicle sprays from the bottom of the thermal runaway vehicle, and can directly spray and cool the battery pack, isolate the area, and effectively suppress the fire; while the spray device on the deck above the thermal runaway vehicle sprays from the top of the thermal runaway vehicle, and the spray liquid directly contacts the upward-propagating high-temperature smoke generated during thermal runaway, absorbs the heat in the high-temperature smoke, and quickly reduces the temperature of the fire scene. At the same time, it can also prevent the high-temperature smoke from diffusing to the surrounding area or propagating upward through the holes in the deck, thereby avoiding thermal runaway of vehicles around the accident vehicle and on the deck above due to excessive temperature, and can further suppress the spread of fire.

[0054] It can be understood that the fire extinguishing system provided in the embodiments of the present application is not only applicable to car transport ships, but also to other devices for storing vehicles with multiple decks, such as smart garages. As long as they have movable decks, the embodiments of the present application are not limited thereto. Just for the sake of ease of understanding, the embodiments of the present application are explained by taking the application on car transport ships as an example.

[0055] See also Figure 1As shown, this embodiment provides a fire extinguishing system, including at least two sprinkler devices, at least one sprinkler device is arranged on each of two adjacent decks, so as to spray the thermal runaway vehicle 30 located between the two adjacent decks from the top and the bottom through the sprinkler device.

[0056] That is, a cabin for parking vehicles is formed between two adjacent decks, and the vehicle is supported by the deck at the bottom of the cabin. When a vehicle in the cabin has thermal runaway, the spray device installed on the deck at the bottom of the cabin sprays the vehicle from the bottom of the thermal runaway vehicle 30. The battery pack is at the bottom of the vehicle, and spraying from the bottom can effectively cool the battery pack and isolate the area, which helps to improve the effect of suppressing and extinguishing fires; the spray device installed on the deck at the top of the cabin sprays the thermal runaway vehicle 30 from the top of the thermal runaway vehicle 30. The thermal runaway of the vehicle will generate a large amount of high-temperature smoke that propagates upward. When spraying from the top, the spray liquid can absorb the heat of the high-temperature smoke, quickly reduce the temperature of the accident site, and prevent the high-temperature smoke from propagating to the surroundings, protecting the surrounding vehicles. The movable deck 20 generally has a large number of holes. Spraying the thermal runaway vehicle 30 from the top can also prevent the high-temperature smoke from propagating to the upper layer through the holes on the movable deck 20, protecting the vehicles on the upper deck.

[0057] It can be understood that the spraying liquid sprayed by the spraying device in this embodiment can be water or other fire extinguishing agents, and this embodiment does not limit it here.

[0058] Since the battery pack needs to be cooled continuously to prevent it from reigniting, the spray liquid may preferably be water.

[0059] In addition, the position of the movable deck 20 can be adaptively adjusted according to the type of parked vehicle, so the sprinkler device on the movable deck 20 will also change position accordingly, which will cause the position of the sprinkler device relative to the vehicle below to change, thereby affecting the actual sprinkler area of ​​the vehicle below the sprinkler device, resulting in the possibility that it may not cover all vehicles, thereby affecting the fire extinguishing and cooling effect.

[0060] In this regard, in this embodiment, at least one spray device is used to be connected to the movable deck 20 and can be moved relative to the movable deck 20, so as to adaptively adjust the spray area of ​​the spray device to match the current position of the movable deck 20.

[0061] In actual applications, the car transport ship generally also includes a fixed deck. Therefore, the at least two spray devices may include at least one second spray device 200 and at least one first spray device 100. The second spray device 200 is installed on the fixed deck 10, and the first spray device 100 is installed on the movable deck 20. The first spray device 100 can be moved relative to the movable deck 20 to change the actual spray area of ​​the first spray device 100 by changing the position of the first spray device 100 relative to the movable deck 20, so that the spray area of ​​the first spray device 100 can effectively cover the thermal runaway vehicle 30.

[0062] Among them, the fixed deck 10 is mostly used as the bottom of the cabin, and is rarely used as the top of the cabin. Therefore, the second spray device 200 can basically be fixedly installed on the fixed deck 10 without position adjustment. Of course, in order to ensure the spraying effect, the fixed deck 10 located on the top of the cabin can also adopt a structure similar to the first spray device 100 or add an auxiliary structure to enable the second spray device 200 to move relative to the fixed deck 10 to change the spraying area. This embodiment does not limit this.

[0063] After the position of the first spray device 100 on the movable deck 20 is adjustable, the corresponding first spray device 100 can be moved according to the location of the thermal runaway vehicle 30, so that the spray area of ​​the first spray device 100 covers the thermal runaway vehicle 30, effectively improving the fire extinguishing and cooling effect, and protecting the surrounding and upper vehicles. At the same time, after the first spray device 100 can be moved, it can be used for spraying an area, so it also helps to reduce the number of first spray devices 100 and reduce the difficulty of installation.

[0064] In addition, in order to spray effectively, the spray shape of the first spray device 100 and the second spray device 200 can also be a solid conical water mist, so that the water mist sprayed during spraying has a certain coverage area and pressure, which can play a certain isolation role for the accident vehicle. Specifically, the first spray device 100 and the second spray device 200 cooperate to spray the thermal runaway vehicle 30 in each cabin from the top and bottom, which has at least the following four advantages:

[0065] The first aspect is that it can block the fire source: the solid cone-shaped spray water mist sprayed from the top of the thermal runaway vehicle 30 can cover the fire area of ​​the thermal runaway vehicle 30, blocking the flame and high-temperature smoke from spreading toward the top and periphery of the thermal runaway vehicle 30, thereby reducing the fire and protecting the vehicles around and on the top of the thermal runaway vehicle 30;

[0066] The second aspect is that it has a cooling effect on the thermal runaway vehicle 30: the water mist sprayed onto the surface of the thermal runaway vehicle 30 will absorb a large amount of heat, reducing the flame temperature, and the evaporation of the water mist will also take away the heat, further reducing the temperature of the thermal runaway vehicle 30;

[0067] The third aspect is that it can dilute combustible gases: high-pressure solid conical water mist can dilute the combustible gases generated when the battery pack is under thermal runaway, reduce their concentration, prevent the accumulation of combustible gases and cause more serious deflagration, and can effectively slow down the combustion speed;

[0068] The fourth aspect is its isolation effect: the spray area formed by high-pressure solid conical water mist can isolate the fire source from the surrounding combustible materials, preventing thermal runaway of surrounding vehicles.

[0069] In order to facilitate the control of the movement of the first spray device 100, a controller can also be provided, and the controller is connected to the first spray device 100 in communication. The controller can be connected to the control system of the car transport ship. At present, a fire monitoring system is generally provided on the car transport ship. For example, smoke alarms, temperature alarms and BMS (Battery Management System) alarm systems are arranged in various areas. These devices are used to detect the status of the vehicles in their respective areas. Once a thermal runaway vehicle 30 is found, a signal will be transmitted to the control system. The control system will transmit the coordinates of the corresponding accident area to the controller, so that the controller obtains the position information and controls the first spray device 100 to move to the corresponding area of ​​the thermal runaway vehicle 30 according to the position information, so that a small number of first spray devices 100 can be arranged on the movable deck 20 to adapt to a larger parking area. It can be understood that how the control system determines the position information of the thermal runaway vehicle 30 and transmits it to the controller, and how the controller controls the movement of the vehicle body according to the position information are all relatively mature existing technologies in the field, and this embodiment will not be repeated here.

[0070] Of course, the controller of this embodiment can also be directly the control system of the car transport ship, which helps to further reduce costs. Whether to set up a separate controller or directly use the control system of the car transport ship as the controller can be selected according to actual conditions, and this embodiment does not limit it here.

[0071] Furthermore, a detection device is provided on the first spray device 100, and the detection device is used to obtain scene information above or below the movable deck 20, wherein the controller is communicatively connected with the detection device, and the controller is also used to control the movement of the first spray device 100 according to the scene information, so that the spraying area of ​​the first spray device 100 covers the thermal runaway vehicle 30, thereby realizing automatic positioning of the first spray device 100 through the controller.

[0072] Specifically, after the controller obtains the position information of the thermal runaway vehicle 30, it will control the first spray device 100 to move to the area where the accident vehicle is located according to the position information. After the first spray device 100 arrives at the area where the accident vehicle is located, the detection device is started. The detection device will obtain scene information above or below the movable deck 20. The controller can determine the location with the highest temperature based on the scene information, and control the first spray device 100 to move to the area with the highest temperature for spraying.

[0073] The detection device may include at least one infrared camera, which acquires temperature information in a corresponding scene above or below the movable deck 20. At this time, the scene information may be temperature information within the coverage range of the infrared camera. After the first spray device 100 reaches the accident area, the infrared camera may be used to determine the area with the highest temperature. Since the source of the fire is generally the battery pack, the location of the battery pack is generally the area with the highest temperature. After the infrared camera locks the battery pack, it may assist the first spray device 100 in accurately locating the thermal runaway vehicle 30, thereby effectively improving the spraying effect.

[0074] It is understandable that the number of infrared cameras may also be two or more, and this embodiment does not limit this.

[0075] Exemplarily, when two or more infrared cameras are set, the shooting area of ​​at least one infrared camera is directed toward the top of the movable deck 20, so as to obtain scene information above the movable deck 20, and the shooting area of ​​at least one infrared camera is directed toward the bottom of the movable deck 20, so as to obtain scene information below the movable deck 20, so that the detection device can obtain scene information above the movable deck 20 and scene information below the movable deck 20, so that the first spray device 100 can spray vehicles above the movable deck 20 and vehicles below the movable deck.

[0076] In addition, the detection device can also be other devices that can obtain image or temperature information, as long as the accident battery pack can be located according to the corresponding scene information it obtains. This embodiment does not limit it here.

[0077] In some possible embodiments, at least one slide rail 300 is installed on the movable deck 20, and the first spray device 100 moves along the slide rail 300, so that the movement path of the first spray device 100 is limited by the slide rail 300 to prevent the first spray device 100 from deviating.

[0078] The slide rail 300 can be welded to the lower surface of the movable deck 20, so that the slide rail 300 is stably connected to the movable deck 20. It is understandable that the slide rail 300 can also be connected to the movable deck 20 in other ways, as long as the slide rail 300 can be stably connected to the movable deck 20 and will not be loosened during use, and this embodiment is not limited thereto.

[0079] Among them, setting one or two slide rails 300 is generally suitable for a movable deck 20 with a smaller area. However, the area of ​​the movable deck 20 of a general car transport ship is relatively large. If only one or two slide rails 300 are set, a single first spray device 100 may be required to cover a larger spray range, and the first spray device 100 needs to be connected to a storage system for storing spray liquid so that the spray liquid can be continuously obtained. Therefore, the first spray device 100 is generally connected to a hose. If the moving range of the first spray device 100 is large, the weight of the hose to be dragged will also be heavier. At the same time, the larger the spray range covered by the first spray device 100, the greater its own weight, so that the resistance to the movement of the first spray device 100 will be correspondingly larger. In addition, the first spray device 100 also needs to be installed with more nozzles, and it is difficult to accurately locate the accident vehicle each time the spray is performed, which may cause a waste of spray liquid. Therefore, if it is applied to a car transport ship, it is preferably provided with multiple slide rails 300.

[0080] See also Figure 2 As shown, when multiple slide rails 300 are arranged on the movable deck 20, the slide rails 300 can extend in a direction perpendicular to the side of the car carrier and be arranged side by side in the direction of the side of the car carrier. At the same time, vertical rails can be added on both sides of the movable deck 20 close to the side of the ship, the vertical rails are connected to the movable deck 20, and the two ends of the slide rails 300 are connected to the vertical rails, so as to further improve the stability of the slide rails 300 after being fixed on the movable deck 20.

[0081] Among them, the storage system can be a system composed of multiple high-pressure water mist storage tanks, or a system for storing other spray liquids. As long as it can provide spray liquid to the first spray device 100 and the second spray device 200 when spraying is needed and ensure sufficient pressure, this embodiment does not limit it here.

[0082] like Figure 2 As shown, on a car carrier, the vehicles are generally arranged in rows, and the length direction of the vehicle bodies is consistent with the length direction of the car carrier. At this time, in order to reduce the waste of spray liquid when the second spray device 200 sprays, the interval of the slide rail 300 can be determined according to the length of the vehicles parked on the deck, that is, a slide rail 300 is correspondingly arranged above each row of vehicles, and the spray area of ​​the first spray device 100 only needs to correspond to one vehicle and a certain range around it.

[0083] In this way, not only can the size of the spraying area of ​​each first spray device 100 be more reasonably sized, but also the length of a single slide rail 300 will not be too long. Even if only one first spray device 100 is arranged on each slide rail 300, the first spray device 100 does not need to move in too large a range, which helps to reduce the weight of the first spray device 100 and its auxiliary equipment, thereby reducing the resistance to the movement of the first spray device 100 and reducing the pressure that the slide rail 300 needs to bear.

[0084] It is understandable that the length of a common vehicle is generally between 4 and 8 meters, so the distance between two adjacent slide rails 300 can be 4 to 8 meters.

[0085] Exemplarily, the distance between two adjacent slide rails 300 is 5 m. The length of a commonly used household new energy vehicle is generally 5 m. Setting the distance between adjacent slide rails 300 to 5 m can be suitable for most situations.

[0086] It can be understood that the above-mentioned spacing between adjacent slide rails 300 is only for illustration and can be selected according to actual conditions, and this embodiment does not limit it.

[0087] For some possible implementations, see Figure 1 and Figure 3 As shown, when the movable deck 20 or the slide rail 300 is made of metal, an electromagnet 170 can be set on the first spray device 100, and the electromagnet 170 is connected to the controller in communication. The controller is also used to control the electromagnet 170 to turn on after the first spray device 100 moves to the corresponding area of ​​the thermal runaway vehicle 30, so that the electromagnet 170 generates an adsorption force on the slide rail 300 or the movable deck 20, thereby assisting the positioning of the first spray device 100 through the electromagnet 170 to prevent the first spray device 100 from shaking back and forth due to excessive pressure when the first spray device 100 is just turned on. After the spraying is finished, the controller controls the electromagnet 170 to turn off, and the adsorption force will disappear, which will not affect the movement of the first spray device 100 along the slide rail 300.

[0088] The number of the electromagnets 170 may be determined according to the weight of the first spray device 100 , as long as the shaking of the first spray device 100 can be avoided, and this embodiment does not limit it.

[0089] For some possible implementations, see Figure 4 and Figure 5As shown, the first spray device 100 also includes at least one first spray body 110, and the first spray head 120 and the second spray head 130 are arranged on the first spray body 110. The first spray head 120 and the second spray head 130 are both connected to the conveying pipeline inside the first spray body 110, and the first spray head 120 and the second spray head 130 are relatively arranged on both sides of the first spray body 110. The first spray head 120 is used to spray the thermal runaway vehicle 30 below the movable deck 20, and the second spray head 130 is used to spray the thermal runaway vehicle 30 above the movable deck 20. Therefore, it is only necessary to set the first spray device 100 on the lower surface of the movable deck 20 to achieve the spraying of the thermal runaway vehicles 30 on the upper and lower sides of the movable deck 20, which can reduce the number of slide rails 30 set and the use of other auxiliary equipment, which helps to reduce the layout cost.

[0090] Among them, since the movable deck 20 can be adjusted in position, the slide rail 300 will move with the movable deck 20, and the size of the area sprayed by the first nozzle 120 will also change with the distance between the movable deck 20 and the lower deck. At this time, the number of first nozzles 120 can be increased on the first spray body 110 to ensure that the movable deck 20 can move arbitrarily within its movable range, and the spraying area of ​​all the first nozzles 120 combinations can effectively cover the thermal runaway vehicle 30.

[0091] The movable deck 20 is generally provided with a plurality of holes, and the second nozzle 130 can directly spray the thermal runaway vehicle 30 located above the movable deck 20 through these holes.

[0092] Of course, when spraying directly through the holes, it is inevitable that the second nozzle 130 will be blocked, so at least one spray hole can be set in the area of ​​the movable deck 20 corresponding to the moving track of the second nozzle 130.

[0093] For example, the spray hole can be arranged in a long strip shape, and the extension direction of the spray hole coincides with the moving path of the second spray head 130. The second spray head 130 moves back and forth along the extension direction of the spray hole. No matter where the second spray head 130 moves to, it can spray the thermal runaway vehicle 30 located above the movable deck 20. When the spray hole is arranged in this way, the second spray head 130 can even partially extend into the spray hole, and when the first spray device 100 moves along the slide rail 300, the second spray head 130 moves in the spray hole.

[0094] For example, in order not to affect the bearing strength of the movable deck 20, one or more spray holes can be set corresponding to each parking position of the vehicle. When the vehicle at the parking position has thermal runaway, the first spray device 100 can be moved to the corresponding position so that the second nozzle 130 sprays the bottom of the thermal runaway vehicle 30 through the spray hole. Of course, the second nozzle 130 will not extend into the spray hole.

[0095] In addition, the same first spray device 100 may include multiple first spray bodies 110. The specific number of the first spray bodies 110 is selected according to actual conditions. When multiple first spray bodies 110 are provided, adjacent first spray bodies 110 can be connected by pipelines to transport spray liquid. In this way, only one of the first spray bodies 110 needs to be connected to the storage system through a pipeline to supply spray liquid to multiple first spray bodies 110.

[0096] Furthermore, the first solenoid valve 140 and the second solenoid valve 150 are provided on the first spray body 110. The first solenoid valve 140 is used to control the opening and closing of the first spray head 120, and the second solenoid valve 150 is used to control the opening and closing of the second spray head 130. The first solenoid valve 140 and the second solenoid valve 150 are both connected to the controller for communication. When it is necessary to spray the thermal runaway vehicle 30 above the movable deck 20, the controller controls the second solenoid valve 150 to open so that the second spray head 130 sprays. When it is necessary to spray the thermal runaway vehicle 30 below the movable deck 20, the controller controls the first solenoid valve 140 to open so that the first spray head 120 sprays.

[0097] Among them, Figure 3 As shown, the first spray device 100 may further include a driving device, such as a combination of a motor and a driving wheel 160, the motor being electrically connected to the driving wheel 160, and the driving wheel 160 being driven to rotate by the motor, the motor and the controller being both mounted on the first spray body 110, the driving wheel 160 being connected to the slide rail 300, the slide rail 300 being provided with a slide groove extending along the length direction of the slide rail 300, the driving wheel 160 being inserted into the slide groove, and while driving the first spray body 110 to move, the first spray body 110 is also supported, of course, a slot may be provided on the slide rail 300, and a slider may be provided on the first spray device 100, the slider being inserted into the slot and slidably connected to the slot, a ball bearing may be provided on the contact surface between the slider and the slot to reduce friction, thereby mainly supporting the first spray device 100 through the slider, and the driving wheel 160 mainly drives the first spray device 100 to move along the slide rail 300.

[0098] Of course, the driving device can also be a combination of a motor and a gear. In this case, a rack that cooperates with the gear can be set on the slide rail 300, and the rack extends along the length direction of the slide rail 300. The first spray device 100 and the slide rail 300 can also be supported by a slot and a slider.

[0099] It is understandable that the structure for driving and moving the first spray device 100 is merely exemplified here, and other structures that can enable the first spray device 100 to move along the slide rail 300 may be applicable, and this embodiment does not limit them.

[0100] For some possible implementations, see Figure 6 and Figure 7 As shown, the second spray device 200 includes at least one second spray body 210, and a third nozzle 220 is arranged on the second spray body 210. The third nozzle 220 is connected to the conveying pipeline inside the second spray body 210, that is, the second spray body 210 can be fixed on the fixed deck 10 by welding or other means. The second spray body 210 is connected to the storage system to supply spray liquid to the third nozzle 220, and the thermal runaway vehicle 30 can be sprayed through the third nozzle 220.

[0101] The second spray body 210 may also be provided as one or more. When provided as multiple, adjacent second spray bodies 210 may be connected via a pipeline that can transmit the spray liquid.

[0102] At this time, the second spray device 200 can be fixed on the fixed deck 10, and the number of the second spray devices 200, and the number of the second spray bodies 210 corresponding to each second spray device 200, can be selected according to actual conditions, as long as the combined spray range of all the second spray devices 200 can cover all vehicles in the cabin of this layer, this embodiment does not limit it here.

[0103] In addition, a third solenoid valve 230 may be provided to control the opening and closing of the third nozzle 220. Of course, the third solenoid valve 230 is also connected to the controller, and the controller performs unified control when a thermal runaway vehicle 30 appears in the corresponding area.

[0104] Among them, Figure 6 and Figure 7 As shown, the third solenoid valve 230 and the third spray head 220 can be arranged on opposite sides of the second spray body 210, or as shown in FIG. Figure 8 and Fig. 9 As shown, the third solenoid valve 230 and the third spray head 220 are arranged on the same side of the second spray body 210, which can be adjusted according to actual conditions, and this embodiment does not limit it.

[0105] For some possible implementations, see Figure 5 and Figure 6 As shown, at least one end of the first spray body 110 and the second spray body 210 is provided with a quick connector 500, and the quick connector 500 is used to connect the storage system for supplying the spray liquid through a delivery hose. Wherein, when multiple first spray bodies 110 or multiple second spray bodies 210 are provided, quick connectors 500 can be provided at both ends of the spray bodies. Such a setting method enables the first spray body 110 and the second spray body 210 to be quickly connected with various pipelines through the quick connector 500, effectively improving the assembly efficiency.

[0106] The pipeline used to connect the adjacent first spray body 110 and the adjacent second spray body 210 is preferably a hose, so that it can be deformed to adapt to various usage conditions, and the hose and the delivery hose can be high-pressure explosion-proof hoses. High-pressure explosion-proof hoses can withstand higher working pressures and are usually made of high-strength materials, such as high-strength fibers. They adopt a multi-layer structure design, which can effectively prevent explosions caused by excessive pressure or external impacts. At the same time, they can be applied to a variety of chemical media, have good corrosion resistance, and also have excellent high temperature resistance and flexibility, and are very suitable for environments that require fire extinguishing.

[0107] The use of the high-pressure explosion-proof hose and the quick connector 500 for connection can minimize the deformation of the pipe caused by the deformation of the deck due to vehicle squeezing, and also facilitate the inspection and replacement of the damaged high-pressure explosion-proof hose.

[0108] Furthermore, an automatic hose reel may be provided to tidy up the delivery hose to prevent the delivery hose from becoming difficult to drag due to tangling.

[0109] Specifically, the automatic hose reel can be fixed on the side rotation of the car transport ship, and the delivery hose is connected to the storage system at one end and connected to the second spray device 200 or the first spray device 100 at the other end, and the middle part is wound on the automatic hose reel. The length of the delivery hose between the controller and the second spray device 200 or the first spray device 100 is controlled by the automatic hose reel.

[0110] Among them, the automatic hose reel generally includes a shell, a reel, a spring mechanism, a locking mechanism and a guide mechanism. The reel is used to wind the conveying hose, the spring mechanism is used to provide power for automatic reeling, the locking mechanism allows the user to lock the conveying hose at any length, and the guide mechanism ensures that the conveying hose is evenly wound. The structure and principle of the automatic hose reel are well known to those skilled in the art, and will not be described in detail in this embodiment.

[0111] Also, see Fig.10As shown, when the second spray device 200 is disposed on the upper surface of the fixed deck 10 , if a vehicle passes by, the second spray device 200 may be crushed, thereby damaging the first spray device 100 .

[0112] Therefore, when the second sprinkler device 200 is installed on the upper surface of the fixed deck 10, the fire extinguishing system may further include at least one protective member 400, the protective member 400 is installed on the upper surface of the fixed deck 10, the second sprinkler device 200 is installed inside the protective member 400, and the protective member 400 is provided with a sprinkler groove 410 for spraying the sprinkler liquid of the third sprinkler head 220.

[0113] Therefore, the second spray device 200 is protected by the protective member 400 to prevent the vehicle from directly running over the second spray device 200 and causing damage to the second spray device 200 .

[0114] Furthermore, the protective member 400 is a rubber protective strip, the second spray device 200 is located inside the rubber protective strip, the spray groove 410 is opened at the top of the rubber protective strip, and a connecting hole 420 is opened on at least one side of the rubber protective strip so that the second spray device 200 can be connected to a storage system for conveying the spray liquid through the connecting hole 420. The rubber protective strip can not only effectively protect the second spray device 200, but also avoid excessive vibration when a vehicle passes by.

[0115] The delivery hose may pass through the connection hole 420 and be connected to the quick connector 500 in the spray tank 410 , or the end of the quick connector 500 may extend to the connection hole 420 and be connected to the delivery hose.

[0116] It is understandable that the protective member 400 may also be made of other materials as long as it can withstand repeated rolling of the vehicle and can also protect the second spray device 200 therein, and this embodiment does not limit it here.

[0117] In addition, the installation position of the second spray device 200 on the fixed deck 10 is fixed, and basically a second spray body 210 needs to be set under each vehicle. Therefore, quick connectors 500 can be set at both ends of the second spray body 210, and two adjacent second spray bodies 210 are connected by high-pressure explosion-proof hoses, and the high-pressure explosion-proof hoses and quick connectors 500 can be directly plugged in, which is very convenient to connect. Moreover, each third nozzle 220 is equipped with a separate third solenoid valve 230 to control opening and closing. Therefore, only one second spray body 210 needs to be connected to the storage system to enable the spray liquid to reach all third nozzles 220, which helps to reduce the number of delivery hoses set between the storage system and the second spray body 210 and reduce the difficulty of layout.

[0118] In some cases, there may be vehicles parked both above and below the fixed deck 10. In this case, see Fig.11 and Fig.12 As shown, the second spray device 200 can be installed on the lower surface of the fixed deck 10, and a fourth nozzle 240 is arranged on the second spray body 210, the fourth nozzle 240 is connected to the conveying pipeline inside the second spray body 210, the fourth nozzle 240 and the third nozzle 220 are arranged on both sides of the second spray body 210 opposite to each other, a mounting hole penetrating the fixed deck 10 is opened on the fixed deck 10, and the fourth nozzle 240 is at least partially inserted into the mounting hole, the fourth nozzle 240 is used to spray the thermal runaway vehicle 30 located above the fixed deck 10, and the third nozzle 220 is used to spray the thermal runaway vehicle 30 located below the fixed deck, so that the second spray device 200 only needs to be installed on the lower surface of the fixed deck 10 to realize the spraying of the vehicles above and below the fixed deck 10, which effectively reduces the difficulty of installation. At the same time, the second spray device 200 is installed on the lower surface of the fixed deck 10, which can also prevent the second spray device 200 from being crushed by the vehicle.

[0119] In addition, a fourth solenoid valve 250 may be provided to control the opening and closing of the fourth nozzle 240. Of course, the fourth solenoid valve 250 is also connected to the controller and is uniformly controlled by the controller.

[0120] In some possible implementations, a car carrier generally has fire partitions, that is, the area between several decks is used as a partition, and adjacent fire partitions are separated to prevent thermal runaway of a vehicle in one fire partition from affecting vehicles in other fire partitions. At the fixed deck 10 where fire partitions are required, a seal 600 can be added to seal the end of the mounting hole facing the second spray body 210 to meet the requirements of fire partitions.

[0121] The third nozzle 220 needs to be at least partially inserted into the mounting hole, so an avoidance hole 610 can be opened on the sealing member 600. The avoidance hole 610 is a through hole. One end wall of the avoidance hole 610 is sealed and connected to the second spray body 210, and the other end wall is sealed and connected to the lower surface of the fixed deck 10. The avoidance hole 610 is opposite to the mounting hole. Of course, the avoidance hole 610 is also opposite to the connection between the fourth nozzle 240 and the second spray body 210, so that the fourth nozzle 240 can extend through the avoidance hole 610 to the mounting hole.

[0122] The sealing member 600 and the fixed deck 10 and the second spray body 210 can be sealed and connected by welding, or by other methods, as long as they are sealed, which is not limited in this embodiment.

[0123] In addition, fixed feet 260 may be provided at both ends of the second spray body 210, and the end of the fixed foot 260 facing away from the second spray body 210 may be connected to the lower surface of the fixed deck 10 by welding or the like, thereby assisting the connection between the second spray body 210 and the fixed deck 10, reducing the impact of the fixed deck 10 on the weld between the seal 600 and the fixed deck 10 when the vehicle is squeezed and deformed, thereby further improving the sealing effect.

[0124] Of course, the fixing legs 260 may also be arranged at other positions, and the number may also be adjusted arbitrarily. This embodiment is only an example and does not limit it.

[0125] In some possible embodiments, the first spray body 110 and the first nozzle 120, the first spray body 110 and the second nozzle 130, the second spray body 210 and the third nozzle 220, and the second spray body 210 and the fourth nozzle 240 are all threaded connections, that is, external threads or internal threads can be set at the interfaces of the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240, and the first spray body 110 and the second spray body 210 are set with threads matching therewith. Such a setting method can effectively improve the convenience of replacing the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240.

[0126] In addition, the nozzle caps of the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240 can also be connected to the nozzles by means of threads, snaps, and other structures, and sealing rings are provided at the connections to ensure sealing, thereby further facilitating the replacement of the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240.

[0127] In addition, the spray shape of the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240 can be solid conical water mist, and the water mist sprayed by each of the first nozzle 120, the second nozzle 130, the third nozzle 220, and the fourth nozzle 240 can cover at least one vehicle, so as to better cover the thermal runaway vehicle 30 during spraying, play a certain insulating role thereon, and reduce the impact of the thermal runaway vehicle 30 on the surrounding vehicles and the vehicles above it.

[0128] The embodiment of the present application also provides a car transport ship, which includes at least one fixed deck 10 and one movable deck 20, and also includes the fire extinguishing system in the above embodiment. After the fire extinguishing system is assembled with the fixed deck 10 and the movable deck 20, when a vehicle on the car transport ship has thermal runaway, it can be sprayed from the bottom and top of the thermal runaway vehicle 30, which can not only directly extinguish the fire and cool down the source battery pack, but also have a certain isolation effect on the thermal runaway vehicle 30 to prevent the fire from spreading to the surrounding vehicles, and also help prevent the high-temperature smoke from spreading upwards and affecting the vehicles on the upper deck.

[0129] It is understandable that the installation method of the fire extinguishing system and the movable deck 20 and the fixed deck 10, as well as the use principle of the fire extinguishing system, have been described in detail in the above embodiment, and will not be repeated in this embodiment.

[0130] Finally, it should be noted that those skilled in the art will easily think of other embodiments of the present application after considering the specification and practicing the technical solutions disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application, are not limited to the precise structures described above and shown in the drawings, and can be modified and changed in various ways without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A fire extinguishing system for extinguishing a fire in a vehicle storage or transport device having a plurality of decks, wherein the plurality of decks include at least one movable deck (20), characterized in that: The fire extinguishing system comprises at least two spray devices, at least one of which is arranged on each of two adjacent decks, so as to spray the thermal runaway vehicle (30) located between the two adjacent decks from the top and the bottom through the spray device; At least one of the spray devices is used to be installed on the movable deck (20), and the spray device (100) can be moved relative to the movable deck (20) to adjust the spray area of ​​the spray device (100) above or below the movable deck (20).

2. The fire extinguishing system according to claim 1, characterized in that: It also includes a controller, which is used to obtain the position information of the thermal runaway vehicle (30) and control the spray device (100) to move to a corresponding area of ​​the thermal runaway vehicle (30) according to the position information.

3. The fire extinguishing system according to claim 2, characterized in that: The plurality of decks also include at least one fixed deck (10), and the at least two spray devices include at least one first spray device (100) and at least one second spray device (200), wherein the first spray device (100) is installed on the movable deck, and the second spray device (200) is installed on the fixed deck.

4. The fire extinguishing system according to claim 3, characterized in that: The first spray device (100) is provided with a detection device, the detection device is used to obtain scene information above or below the movable deck (20), the controller is in communication connection with the detection device, and the controller is also used to control the movement of the first spray device (100) according to the scene information, so that the spraying area of ​​the first spray device (100) covers the thermal runaway vehicle (30).

5. The fire extinguishing system according to claim 4, characterized in that: The detection device includes at least one infrared camera.

6. The fire extinguishing system according to claim 3, characterized in that: It also includes at least one slide rail (300), wherein the slide rail (300) is connected to the lower surface of the movable deck (20), and the first spray device (100) moves along the slide rail (300).

7. The fire extinguishing system according to claim 6, characterized in that: A plurality of the slide rails (300) are arranged side by side, and the distance between adjacent slide rails (300) is 4-8 m.

8. The fire extinguishing system according to claim 6, characterized in that: The first spray device (100) comprises an electromagnet (170), and the electromagnet (170) is communicatively connected to the controller. The controller is also used to control the electromagnet (170) to turn on after the first spray device (100) moves to a corresponding area of ​​the thermal runaway vehicle (30), so that the electromagnet (170) generates an adsorption force on the slide rail (300) or the movable deck (20).

9. The fire extinguishing system according to claim 3, characterized in that: The first spray device (100) further comprises at least one first spray body (110), on which a first spray head (120) and a second spray head (130) are arranged, the first spray head (120) and the second spray head (130) are both connected to a delivery pipeline inside the first spray body (110), and the first spray head (120) and the second spray head (130) are arranged on two sides of the first spray body (110) opposite to each other, the first spray head (120) is used to spray the thermal runaway vehicle (30) below the movable deck (20), and the second spray head (130) is used to spray the thermal runaway vehicle (30) above the movable deck (20).

10. The fire extinguishing system according to claim 9, characterized in that: At least one spray hole is provided on the movable deck (20), and the nozzle of the second spray head (130) is opposite to the spray hole, or the second spray head (130) is partially inserted into the spray hole.

11. The fire extinguishing system according to claim 9, characterized in that: The second spray device (200) comprises at least one second spray body (210), and a third spray head (220) is arranged on the second spray body (210), and the third spray head (220) is connected to a delivery pipeline inside the second spray body (210).

12. The fire extinguishing system according to claim 11, characterized in that: At least one end of the first spray body (110) and the second spray body (210) is provided with a quick connector (500), and the quick connector (500) is used to connect to a storage system that supplies spray liquid through a delivery hose.

13. The fire extinguishing system according to claim 12, characterized in that: The invention also comprises at least one protective member (400), wherein the protective member (400) is installed on the upper surface of the fixed deck (10), the second spraying device (200) is installed inside the protective member (400), and the protective member (400) is provided with a spraying groove (410) for spraying liquid from the third spray head (220).

14. The fire extinguishing system according to claim 13, characterized in that: The protective member (400) is a rubber protective strip, the second spray device (200) is located inside the rubber protective strip, the spray slot (410) is provided on the top of the rubber protective strip, a connection hole (420) is provided on at least one side of the rubber protective strip, and the delivery hose passes through the connection hole (420) to be connected to the quick connector (500).

15. The fire extinguishing system according to claim 12, characterized in that: The second spray body (210) is also provided with a fourth nozzle (240), the fourth nozzle (240) is connected to the delivery pipeline inside the second spray body (210), the fourth nozzle (240) and the third nozzle (220) are arranged on both sides of the second spray body (210) opposite to each other, the fixed deck (10) is provided with a mounting hole penetrating the fixed deck (10), the fourth nozzle (240) is at least partially inserted into the mounting hole, the fourth nozzle (240) is used to spray the thermal runaway vehicle (30) located above the fixed deck (10), and the third nozzle (220) is used to spray the thermal runaway vehicle (30) located below the fixed deck (10).

16. The fire extinguishing system according to claim 15, characterized in that: It also includes a sealing member (600), wherein the sealing member (600) is configured to seal the lower end of the mounting hole toward the fixed deck (10).

17. The fire extinguishing system according to claim 16, characterized in that: A avoidance hole (610) is provided in the middle of the sealing member (600), one end wall of the avoidance hole (610) is sealedly connected to the second spray body (210), and the other end wall is sealedly connected to the lower surface of the fixed deck (10), and the avoidance hole (610) is opposite to the mounting hole, so that the fourth nozzle (240) can pass through the avoidance hole (610) and extend into the mounting hole.

18. The fire extinguishing system according to claim 15, characterized in that: The first nozzle (120), the second nozzle (130), the third nozzle (220) and the fourth nozzle (240) are each controlled to be opened and closed by a solenoid valve, and all the solenoid valves are communicatively connected to the controller.

19. A car transport ship comprising at least one movable deck (20), characterized in that: It also includes a fire extinguishing system as described in any one of claims 1-18.

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