Fire extinguishing system and automobile cargo ship

Abstract

A fire extinguishing system and an automobile cargo ship, relating to the technical field of automobile transport fire safety. The fire extinguishing system comprises at least two spraying apparatuses. Two adjacent decks are each provided with at least one spraying apparatus. At least one spraying apparatus is movably mounted on a movable deck (20) so as to adjust a spraying area of the spraying apparatus above or below the movable deck, so that a battery pack can be directly extinguished and cooled, and generated high-temperature gas and smoke can be prevented from diffusing towards the surroundings.

Description

Fire extinguishing system and automobile transport ship

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority to the Chinese patent application No. 202421602768.1, filed on July 5, 2024, and entitled "Fire extinguishing system and automobile transport ship", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the field of automobile carrying fire safety technology, and more particularly, to a fire extinguishing system and an automobile transport ship. BACKGROUND

[0004] With the rapid development of new energy vehicles, the number of new energy vehicles transported by automobile transport ships has also increased significantly. Once a new energy vehicle catches fire during transportation, it is easy to cause the fire to spread and diffuse, resulting in significant casualties and property losses. Therefore, the fire risk control of automobile transport ships is particularly important.

[0005] An automobile transport ship generally includes a fixed deck and a movable deck. The position of the movable deck can be adjusted so that the height between the adjacent two decks can be adaptively adjusted. During transportation, vehicles are generally parked on the deck of the automobile transport ship. A common fire extinguishing method is to set up a spray head on the two sides of the deck and the deck column, and to spray water mist through the spray head for fire extinguishing when a fire occurs.

[0006] However, such a setting method of the spray head cannot guarantee effective spraying on any thermal runaway vehicle on the deck. SUMMARY

[0007] The purpose of the present disclosure is to provide a fire extinguishing system and an automobile transport ship to achieve the effect of effective spraying on any thermal runaway vehicle on the deck.

[0008] In a first aspect, the present disclosure discloses a fire extinguishing system for extinguishing a device for storing or transporting vehicles, the device having a plurality of decks, at least one of the plurality of decks being a movable deck, the fire extinguishing system comprising at least two spraying devices, at least one spraying device being arranged on each of two adjacent decks to spray a thermal runaway vehicle located between the two adjacent decks from the top and the bottom through the spraying device.

[0009] At least one spraying device is arranged on the movable deck, and the spraying device is movable relative to the movable deck to adjust the spraying area of the spraying device above or below the movable deck.

[0010] In some possible implementation manners, the controller is further configured to acquire position information of the thermal runaway vehicle, and control the first spraying device to move to a region corresponding to the thermal runaway vehicle according to the position information.

[0011] In some possible implementation manners, the plurality of decks further comprises at least one fixed deck, and the plurality of spraying devices comprises at least one first spraying device and at least one second spraying device, the first spraying device is installed on the movable deck, and the second spraying device is installed on the fixed deck.

[0012] In some possible implementation manners, the first spraying device is provided with a detection device configured to acquire scene information above or below the movable deck, the controller is in communication connection with the detection device, and the controller is further configured to control the first spraying device to move according to the scene information, so that a spraying region of the first spraying device covers the thermal runaway vehicle.

[0013] In some possible implementation manners, the detection device comprises at least one infrared camera.

[0014] In some possible implementation manners, the first spraying device further comprises at least one slide rail connected to a lower surface of the movable deck, and the first spraying device moves along the slide rail.

[0015] In some possible implementation manners, a plurality of slide rails are arranged side by side, and a spacing between adjacent slide rails is 4-8 m.

[0016] In some possible implementation manners, the first spraying device further comprises an electromagnet in communication connection with the controller, and the controller is further configured to control the electromagnet to be turned on after the first spraying device moves to the region corresponding to the thermal runaway vehicle, so that the electromagnet generates an adsorption force on the slide rail or the movable deck.

[0017] In some possible implementation manners, the first spraying device further comprises at least one first spraying body, the first spraying body is provided with a first nozzle and a second nozzle, the first nozzle and the second nozzle are both in communication with a conveying pipeline inside the first spraying body, and the first nozzle and the second nozzle are oppositely arranged on two sides of the first spraying body, the first nozzle is configured to spray the thermal runaway vehicle below the movable deck, and the second nozzle is configured to spray the thermal runaway vehicle above the movable deck.

[0018] In some possible embodiments, at least one spray hole is formed on the movable deck, a nozzle of the second spray head is opposite to the spray hole, or the second spray head is partially inserted into the spray hole.

[0019] In some possible embodiments, the second spray device comprises at least one second spray body, and the second spray body is provided with a third spray head which is in communication with a conveying pipeline inside the second spray body.

[0020] In some possible embodiments, at least one end of the first spray body and the second spray body is provided with a quick connector which is used to connect a storage system for supplying spray liquid through a conveying hose.

[0021] In some possible embodiments, at least one protection member is further included, the protection member is installed on an upper surface of the fixed deck, the second spray device is installed inside the protection member, and the protection member is provided with a spray groove for spraying liquid of the third spray head.

[0022] In some possible embodiments, the protection member is a rubber protection strip, the second spray device is located inside the rubber protection strip, the spray groove is formed on a top of the rubber protection strip, at least one side of the rubber protection strip is provided with a connecting hole, and the conveying hose is connected with the quick connector through the connecting hole.

[0023] In some possible embodiments, the second spray body is further provided with a fourth spray head which is in communication with the conveying pipeline inside the second spray body, the fourth spray head is arranged on two sides of the second spray body opposite to the third spray head, the fixed deck is provided with a mounting hole which penetrates through the fixed deck, and the fourth spray head is at least partially inserted into the mounting hole, the fourth spray head is used to spray the thermal runaway vehicle above the fixed deck, and the third spray head is used to spray the thermal runaway vehicle below the fixed deck.

[0024] In some possible embodiments, a sealing member is further included, and the sealing member is configured to seal an end of the mounting hole which is directed downwardly relative to the fixed deck.

[0025] In some possible embodiments, a relief hole is formed in a middle portion of the sealing member, one end wall of the relief hole is sealingly connected with the second spray body, another end wall of the relief hole is sealingly connected with a lower surface of the fixed deck, and the relief hole is opposite to the mounting hole so that the fourth spray head can extend into the mounting hole through the relief hole.

[0026] In some possible embodiments, the first spray head, the second spray head, the third spray head and the fourth spray head are each controlled to open and close by an electromagnetic valve, and all the electromagnetic valves are in communication connection with the controller.

[0027] In a second aspect, the disclosure discloses a car carrier, comprising at least one movable deck, and further comprising the fire extinguishing system according to any one of the first aspect.

[0028] In combination with the above technical solutions, the fire extinguishing system and the car carrier provided by the disclosure, the fire extinguishing system comprises at least two spray devices, at least one spray device is arranged on each of two adjacent decks of the car carrier, so that the heat runaway vehicle located between the two adjacent decks is sprayed from the bottom and the top by the spray devices, spraying from the bottom of the vehicle can cool the battery pack and isolate the area at the bottom, so as to achieve the effect of suppressing and extinguishing the fire, and spraying from the top of the vehicle can effectively suppress the high-temperature smoke generated during heat runaway and propagating upward, so as to avoid the spread of the high-temperature smoke to the surrounding or through the deck hole to the upper layer, and the spray liquid can absorb the heat of the high-temperature smoke to rapidly reduce the temperature of the yard, so as to avoid the heat runaway of the surrounding vehicles and the vehicles on the upper deck due to the excessively high temperature, thereby effectively preventing the further spread of the fire. In addition, the at least one spray device is installed on the movable deck and can move relative to the movable deck, so that after the position of the movable deck is adjusted, even if the position and height of the spray device relative to the vehicle below the movable deck change, the spraying area of the spray device can be changed by adjusting the position of the spray device, so that the spray device can effectively spray the heat runaway vehicle, thereby improving the control effect of the fire extinguishing system on the fire. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a schematic diagram of the use state of the fire extinguishing system according to an embodiment of the disclosure;

[0030] FIG. 2 is a schematic diagram of the arrangement of the slide rails on the deck in the fire extinguishing system according to an embodiment of the disclosure;

[0031] FIG. 3 is a schematic diagram of the connection structure between the slide rails and the first spray device in the fire extinguishing system according to an embodiment of the disclosure;

[0032] FIG. 4 is a perspective view of the first spray device in the fire extinguishing system according to an embodiment of the disclosure;

[0033] FIG. 5 is a front view of the first spray device in the fire extinguishing system according to an embodiment of the disclosure;

[0034] FIG. 6 is a perspective view of the second spray device in the fire extinguishing system according to an embodiment of the disclosure;

[0035] FIG. 7 is a front view of the second spray device in the fire extinguishing system according to an embodiment of the disclosure;

[0036] Fig. 8 is a perspective view of a second spraying device in a fire extinguishing system according to another embodiment of the present disclosure;

[0037] Fig. 9 is a front view of the second spraying device in the fire extinguishing system according to Fig. 8;

[0038] Fig. 10 is a perspective view of a protective member in a fire extinguishing system according to an embodiment of the present disclosure;

[0039] Fig. 11 is a perspective view of a second spraying device in a fire extinguishing system according to another embodiment of the present disclosure;

[0040] Fig. 12 is a front view of the second spraying device in the fire extinguishing system according to Fig. 11.

[0041] Reference signs: 10 - fixed deck; 20 - movable deck; 30 - thermal runaway vehicle; 100 - first spraying device; 110 - first spraying body; 120 - first spray head; 130 - second spray head; 140 - first electromagnetic valve; 150 - second electromagnetic valve; 160 - driving wheel; 170 - electromagnet; 200 - second spraying device; 210 - second spraying body; 220 - third spray head; 230 - third electromagnetic valve; 240 - fourth spray head; 250 - fourth electromagnetic valve; 260 - fixing foot; 300 - sliding rail; 400 - protective member; 410 - spraying groove; 420 - connecting hole; 500 - quick connector; 600 - sealing member; 610 - avoiding hole. DETAILED DESCRIPTION

[0042] In the present disclosure, the term “and / or” describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character “ / ” generally represents an “or” relationship between the associated objects before and after it.

[0043] In the embodiments of the present disclosure, the term “a plurality of” means two or more, and other quantifiers are similar.

[0044] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0045] Noun explanation:

[0046] Roll on / roll off (RORO) vehicle carrier: a ship specially designed for the transportation of vehicles, which generally has multiple decks, including fixed decks and movable decks, the movable decks are generally arranged between the fixed decks, and the position of the movable decks can be adjusted to adjust the distance between the movable decks and the adjacent decks according to the parking of the vehicles, so that it can adapt to the parking of various different vehicles. Generally, the internal ramps are connected between each deck, and the fixed devices and protection equipment are generally equipped on the deck to ensure that the vehicles will not move or be damaged during transportation.

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

[0048] Thermal runaway vehicle: a vehicle that causes a fire, explosion or other danger due to the uncontrolled temperature rise of the battery pack, which produces a large amount of high-temperature smoke.

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

[0050] Some vehicle carriers choose to install water mist nozzles on the sides of the ship and the ship columns, and when a vehicle experiences thermal runaway, the water mist nozzles on the sides are used to spray it.

[0051] However, this method has high requirements for the installation of the spraying device, especially for the layout of the cabin. If there are a large number of goods or personnel inside the cabin, the flow of the spraying water may be blocked, causing some areas to be unable to be effectively sprayed, thereby affecting the effect of the spraying fire extinguishing. At the same time, for sea-borne new energy vehicles, new energy vehicles are generally arranged in an orderly manner on the deck, and the distance between them is small. Spraying from the side through water mist nozzles can only have a certain cooling and fire extinguishing effect on the vehicles around the ship, and has almost no effect on other vehicles. In addition, the thermal runaway of new energy vehicles during sea transportation is caused by battery failure. Lithium batteries continuously release a large amount of heat when they experience thermal runaway, and the lithium batteries are installed at the bottom of the vehicle. The spraying coverage of the battery pack from the side is very small, and it cannot effectively and quickly cool the battery pack that experiences thermal runaway, so the cooling effect of the battery pack from the side is very weak.

[0052] Even if the height and angle of the water mist nozzles installed on the ship side and the ship column are adjustable to maximize the spraying coverage, but affected by the height of the vehicle chassis, the area of the water mist nozzles installed in this way can spray the battery pack at the bottom of the vehicle is still limited, and cannot effectively cool the battery pack.

[0053] In order to avoid the above problems, the embodiments of the present disclosure provide a fire extinguishing system and a car carrier, which is provided with a spraying device on each of the adjacent two decks of the car carrier. When the vehicle between the adjacent two decks is in thermal runaway, the spraying device installed on the two decks can spray the thermal runaway vehicle at the same time, that is, the spraying device on the deck below the thermal runaway vehicle sprays from the bottom of the thermal runaway vehicle, which can directly spray and cool the battery pack, isolate the area, and effectively suppress the fire. The spraying device on the deck above the thermal runaway vehicle sprays from the top of the thermal runaway vehicle, and the spraying liquid directly contacts the high-temperature smoke generated during thermal runaway and propagates upward, absorbs the heat in the high-temperature smoke, rapidly reduces the temperature of the fire scene, and at the same time, prevents the high-temperature smoke from spreading around or upward through the holes on the deck, thereby avoiding the thermal runaway of the vehicles around and above the accident vehicle due to the high temperature, and further suppressing the spread of the fire.

[0054] It can be understood that the fire extinguishing system provided by the embodiments of the present disclosure is not only applicable to car carriers, but also applicable to other devices for storing vehicles with multiple decks, such as intelligent garages, as long as they have movable decks. The embodiments of the present disclosure do not limit them, but only for the convenience of understanding, the embodiments of the present disclosure are all illustrated by taking the application in car carriers as an example.

[0055] Please refer to FIG. 1, the present embodiment provides a fire extinguishing system, comprising at least two spraying devices, at least one spraying device is arranged on each of the adjacent two decks, so as to spray the thermal runaway vehicle 30 between the adjacent two decks from the top and the bottom through the spraying device.

[0056] That is, the two adjacent decks form a vehicle parking cabin, and the vehicle is supported by the deck at the bottom of the cabin. When the vehicle in the cabin experiences 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 the bottom spray can effectively cool the battery pack and isolate the area, which helps to improve the effect of suppressing and extinguishing the fire; 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. A large amount of high-temperature smoke generated by the vehicle during thermal runaway will spread upward. When spraying from the top, the spray liquid can absorb the heat of the high-temperature smoke, rapidly reduce the temperature of the accident site, and prevent the high-temperature smoke from spreading to the surrounding area to protect the surrounding vehicles. The movable deck 20 generally has a large number of holes, and spraying the thermal runaway vehicle 30 from the top can also prevent the high-temperature smoke from spreading to the upper layer through the holes in the movable deck 20 to protect the vehicles on the upper deck.

[0057] It can be understood that the spray liquid sprayed by the spray device in the embodiment can be water or other extinguishing agent, which is not limited herein.

[0058] However, since the battery pack needs to be continuously cooled to prevent the battery pack from reigniting, the spray liquid can be preferably water.

[0059] In addition, the position of the movable deck 20 can be adjusted adaptively according to the type of the parked vehicle, so that the position of the spray device on the movable deck 20 also changes, which affects the actual spraying area of the spray device on the vehicle below, so that it may not cover all the vehicles, thereby affecting the fire extinguishing and cooling effect.

[0060] To this end, at least one spray device is used in connection with the movable deck 20 and can move relative to the movable deck 20, so as to adaptively adjust the spraying area of the spray device to adapt to the current position of the movable deck 20.

[0061] In actual application, the car carrier generally also includes a fixed deck, therefore, of the at least two spray devices, at least one second spray device 200 and at least one first spray device 100 can be included, 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, and the first spray device 100 can move relative to the movable deck 20 to change the actual spraying 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 spraying area of the first spray device 100 can effectively cover the thermal runaway vehicle 30.

[0062] The fixed deck 10 is more often used as the bottom of the cabin and less often used as the top of the cabin, so the second spraying device 200 can be basically fixedly installed on the fixed deck 10 without position adjustment. Of course, in order to ensure the spraying effect, the fixed deck 10 located at the top of the cabin can also adopt a structure similar to the first spraying device 100 or increase an auxiliary structure to enable the second spraying device 200 to move relative to the fixed deck 10, so as to change the spraying area. The present embodiment does not limit this.

[0063] After the position of the first spraying device 100 on the movable deck 20 is adjustable, the corresponding first spraying device 100 can be moved according to the position of the thermal runaway vehicle 30, so that the spraying area of the first spraying device 100 covers the thermal runaway vehicle 30, effectively improving the fire extinguishing and cooling effect and protecting the surrounding and upper vehicles. Meanwhile, the first spraying device 100 can be moved, so it can be applied to spraying in an area, thereby helping to reduce the number of first spraying devices 100 and the installation difficulty.

[0064] In addition, in order to effectively spray, the spray shape of the first spraying device 100 and the second spraying device 200 can be a solid cone-shaped water mist. In this way, the water mist sprayed during spraying has a certain coverage and pressure, and can play a certain isolation role on the accident vehicle. Specifically, the first spraying device 100 and the second spraying device 200 cooperate to spray the thermal runaway vehicle 30 in each cabin from the top and the bottom, and at least have the following four advantages:

[0065] The first advantage is to hinder the fire source: the solid cone-shaped spray water mist sprayed from the top of the thermal runaway vehicle 30 can cover the ignition area of the thermal runaway vehicle 30, hinder the spread of the flame and high-temperature smoke towards 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 advantage is to have a cooling effect on the thermal runaway vehicle 30: the water mist sprayed on the surface of the thermal runaway vehicle 30 can absorb a large amount of heat, so that the flame temperature is reduced, and the evaporation of the water mist also takes away heat, further reducing the temperature of the thermal runaway vehicle 30;

[0067] The third advantage is to dilute the combustible gas: the high-pressure solid cone-shaped water mist can dilute the combustible gas generated when the battery pack is in thermal runaway, reduce its concentration, prevent the combustible gas from accumulating to cause more serious explosion, and effectively slow down the burning speed;

[0068] The fourth advantage is to have an isolation effect: the spraying interval formed by the high-pressure solid cone-shaped water mist can isolate the fire source from the surrounding combustible materials, preventing the thermal runaway of the surrounding vehicles.

[0069] In order to facilitate the control of the movement of the first spraying device 100, a controller can also be arranged, which is in communication connection with the first spraying device 100. The controller can be connected to the control system of the automobile transport ship. At present, the automobile transport ship is generally provided with a fire monitoring system, such as smoke alarms, temperature alarms, BMS (Battery Management System) alarm systems and other devices arranged in each area. These devices are used to detect the state of the vehicle in the respective area. 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 spraying 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 spraying devices 100 arranged on the movable deck 20 can 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 both relatively mature existing technologies in the field, and the present embodiment will not repeat them here.

[0070] Of course, the controller of the present embodiment can also be the control system of the automobile transport ship, which helps to further reduce the cost. Whether to arrange a separate controller or directly use the control system of the automobile transport ship as the controller can be selected according to the actual situation, and the present embodiment does not limit it here.

[0071] In some possible embodiments, the first spraying device 100 is provided with a detection device for obtaining scene information above or below the movable deck 20. The controller is in communication connection with the detection device, and the controller is further configured to control the movement of the first spraying device 100 according to the scene information, so that the spraying area of the first spraying device 100 covers the thermal runaway vehicle 30, thereby realizing the automatic positioning of the first spraying 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 spraying device 100 to move to the area where the accident vehicle is located. After the first spraying device 100 reaches the area where the accident vehicle is located, the detection device is started. The detection device obtains the scene information above or below the movable deck 20. The controller can determine the position with the highest temperature according to the scene information, and control the first spraying device 100 to move to the area with the highest temperature for spraying.

[0073] The detection device can include at least one infrared camera, which obtains temperature information in the corresponding scene above or below the movable deck 20. When the first spraying device 100 reaches the accident area, the infrared camera can 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 can assist the first spraying device 100 in accurately positioning the thermal runaway vehicle 30 and effectively improve the spraying effect.

[0074] It can be understood that the infrared camera can also be two or more. The present embodiment does not limit this.

[0075] For example, when two or more infrared cameras are provided, the shooting area of at least one infrared camera is directed upward of the movable deck 20 to obtain scene information above the movable deck 20, and the shooting area of at least one infrared camera is directed downward of the movable deck 20 to obtain scene information below the movable deck 20. Thus, the detection device can obtain scene information above the movable deck 20 and scene information below the movable deck 20, so that the first spraying device 100 can spray vehicles above the movable deck 20 and vehicles below the movable deck 20.

[0076] In addition, the detection device can also be other devices that can obtain image or temperature information, as long as the corresponding scene information obtained by the device can locate the accident battery pack. The present embodiment does not limit this.

[0077] In some possible embodiments, at least one slide rail 300 is installed on the movable deck 20, and the first spraying device 100 moves along the slide rail 300, so that the movement path of the first spraying device 100 is limited by the slide rail 300, avoiding the situation that the first spraying device 100 deviates.

[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 can be understood that the slide rail 300 can also be connected to the movable deck 20 by other means, as long as the slide rail 300 is stably connected to the movable deck 20 and does not loosen during use. The present embodiment does not limit this.

[0079] The arrangement of one or two slide rails 300 is generally applicable to the movable deck 20 with a small area. The movable deck 20 of a general automobile transport ship has a large area, and the arrangement of only one or two slide rails 300 may require a single first spraying device 100 to cover a large spraying range. The first spraying device 100 needs to be connected to a storage system for storing spraying liquid, so as to continuously obtain the spraying liquid. Therefore, the first spraying device 100 is generally connected with a hose. If the moving range of the first spraying device 100 is large, the weight of the hose to be pulled by the first spraying device 100 is also large. In addition, the larger the spraying range covered by the first spraying device 100, the larger the weight of the first spraying device 100, so that the moving resistance of the first spraying device 100 is correspondingly large. In addition, the first spraying device 100 also needs to be installed with more nozzles, and it is difficult to accurately position the accident vehicle during each spraying, which may cause waste of spraying liquid. Therefore, if the first spraying device 100 is applied to an automobile transport ship, a plurality of slide rails 300 are preferably arranged.

[0080] As shown in FIG. 2, when a plurality of slide rails 300 are arranged on the movable deck 20, the slide rails 300 can extend in a direction perpendicular to the ship side of the automobile transport ship and are arranged side by side in a direction along the ship side of the automobile transport ship. Meanwhile, vertical rails can be added on both sides of the movable deck 20 close to the ship side. The vertical rails are connected with the movable deck 20, and the two ends of the slide rails 300 are connected with the vertical rails, so as to further improve the stability of the slide rails 300 fixed on the movable deck 20.

[0081] The storage system can be a system composed of a plurality of high-pressure water mist storage tanks or a system for storing other spraying liquid, as long as the spraying liquid can be provided for the first spraying device 100 and the second spraying device 200 when spraying is needed, and the pressure is sufficient. The present embodiment does not limit the storage system.

[0082] As shown in FIG. 2, on the automobile transport ship, the vehicles are generally arranged in a whole row, and the length direction of the vehicle body is consistent with the length direction of the automobile transport ship. At this time, in order to reduce the waste of spraying liquid when the second spraying device 200 sprays, the interval of the slide rails 300 can be determined according to the length of the vehicles parked on the deck, that is, one slide rail 300 is arranged above each row of vehicles, and the spraying area of the first spraying device 100 only needs to correspond to one vehicle and a certain range around the vehicle.

[0083] In this way, the size of the spraying area of each first spraying device 100 is more reasonable, and the length of each slide rail 300 is not too long. Even if only one first spraying device 100 is arranged on each slide rail 300, the first spraying device 100 does not need to move in a large range, which helps to reduce the weight of the first spraying device 100 and its auxiliary equipment, thereby reducing the moving resistance of the first spraying device 100 and the pressure borne by the slide rail 300.

[0084] It can be understood that the length of a common vehicle is generally between 4-8m, so the distance between two adjacent slide rails 300 can be 4-8m.

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

[0086] It can be understood that the distance between the above adjacent slide rails 300 is only an example for illustration, and can be selected according to actual conditions, which is not limited in the embodiment.

[0087] In some possible embodiments, referring to FIG. 1 and FIG. 3, when the movable deck 20 or the slide rail 300 is made of metal, an electromagnet 170 can be arranged on the first spraying device 100. The electromagnet 170 is in communication connection with the controller. The controller is further configured to control the electromagnet 170 to be turned on after the first spraying 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 in positioning the first spraying device 100 through the electromagnet 170, preventing the first spraying device 100 from shaking back and forth due to excessive pressure when the first spraying device 100 is just opened. After the spraying is completed, the controller controls the electromagnet 170 to be turned off, and the adsorption force disappears, which does not affect the movement of the first spraying device 100 along the slide rail 300.

[0088] The number of electromagnets 170 can be determined according to the weight of the first spraying device 100, as long as the first spraying device 100 can be prevented from shaking, which is not limited in the embodiment.

[0089] In some possible embodiments, referring to FIG. 4 and FIG. 5, the first spraying device 100 further comprises at least one first spraying body 110. The first spraying body 110 is provided with a first spray head 120 and a second spray head 130. The first spray head 120 and the second spray head 130 are both in communication with the conveying pipeline inside the first spraying body 110, and the first spray head 120 and the second spray head 130 are oppositely arranged on both sides of the first spraying body 110. The first spray head 120 is used for spraying the thermal runaway vehicle 30 below the movable deck 20, and the second spray head 130 is used for spraying the thermal runaway vehicle 30 above the movable deck 20, so that only the first spraying device 100 needs to be arranged on the lower surface of the movable deck 20, which can realize the spraying of the thermal runaway vehicle 30 on both sides of the movable deck 20, thereby reducing the number of slide rails 300 and the amount of use of other auxiliary equipment, which helps to reduce the layout cost.

[0090] Wherein, since the movable deck 20 is adjustable, the slide rail 300 will move with the movable deck 20, and the size of the area sprayed by the first spray head 120 will change with the distance between the movable deck 20 and the lower deck, at this time, the number of first spray heads 120 on the first spray body 110 can be increased, so that the movable deck 20 can move anywhere within its movable range, and the combined spray area of all first spray heads 120 can effectively cover the thermal runaway vehicle 30.

[0091] Wherein, generally, a plurality of holes are arranged on the movable deck 20, and the second spray head 130 can directly spray the thermal runaway vehicle 30 above the movable deck 20 through the holes.

[0092] Of course, direct spraying through the holes will inevitably cause the second spray head 130 to be blocked, so at least one spray hole can be arranged in the area corresponding to the moving track of the second spray head 130 on the movable deck 20.

[0093] Exemplarily, the spray hole can be arranged in a strip shape, the extension direction of the spray hole coincides with the moving path of the second spray head 130, and the second spray head 130 reciprocally moves along the extension direction of the spray hole, no matter where the second spray head 130 moves, the thermal runaway vehicle 30 above the movable deck 20 can be sprayed. 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] Exemplarily, in order not to affect the bearing strength of the movable deck 20, one or more spray holes can be arranged corresponding to the position of each parked vehicle, and when the vehicle at the parking position appears thermal runaway, the first spray device 100 can move to the corresponding position to make the second spray head 130 spray the bottom of the thermal runaway vehicle 30 through the spray hole, of course, the second spray head 130 will not extend into the spray hole.

[0095] In addition, the same first spray device 100 can include a plurality of first spray bodies 110, and the specific number of first spray bodies 110 is selected according to the actual situation, and when a plurality of first spray bodies 110 are arranged, the adjacent first spray bodies 110 can be connected through pipelines to transport the spray liquid, so that only one first spray body 110 needs to be connected to the storage system through a pipeline to supply the spray liquid to the plurality of first spray bodies 110.

[0096] In some possible embodiments, the first spray body 110 is provided with a first electromagnetic valve 140 and a second electromagnetic valve 150, the first electromagnetic valve 140 is used to control the opening and closing of the first spray head 120, the second electromagnetic valve 150 is used to control the opening and closing of the second spray head 130, and the first electromagnetic valve 140 and the second electromagnetic valve 150 are both in communication connection with the controller. When it is needed to spray the hot runaway vehicle 30 above the movable deck 20, the controller controls the second electromagnetic valve 150 to open, so that the second spray head 130 sprays, and when it is needed to spray the hot runaway vehicle 30 below the movable deck 20, the controller controls the first electromagnetic valve 140 to open, so that the first spray head 120 sprays.

[0097] As shown in FIG. 3, the first spray device 100 can further include a driving device, such as a combination of a motor and a driving wheel 160, the motor is in electrical connection with the driving wheel 160, the driving wheel 160 is driven to rotate by the motor, the motor and the controller are both installed on the first spray body 110, the driving wheel 160 is connected with a sliding rail 300, the sliding rail 300 can be provided with a sliding groove extending along the length direction of the sliding rail 300, the driving wheel 160 is clamped into the sliding groove, and the first spray body 110 is supported while being driven to move, of course, a clamping groove can also be provided on the sliding rail 300, and a sliding block can be provided on the first spray device 100, the sliding block is clamped into the clamping groove and is in sliding connection with the clamping groove, and a ball can be provided on the contact surface between the sliding block and the clamping groove to reduce the friction, so that the first spray device 100 is mainly supported by the sliding block, and the driving wheel 160 mainly drives the first spray device 100 to move along the sliding rail 300.

[0098] Of course, the driving device can also be a combination of a motor and a gear, at this time, a gear rack can be provided on the sliding rail 300 and matched with the gear, the gear rack extends along the length direction of the sliding rail 300, and the first spray device 100 and the sliding rail 300 can also be supported by the clamping groove and the sliding block.

[0099] It can be understood that, here, only the structure of the driving movement of the first spray device 100 is exemplified, and other structures that can make the first spray device 100 move along the sliding rail 300 can also be applied, and the present embodiment is not limited thereto.

[0100] In some possible embodiments, as shown in FIGS. 6 and 7, the second spray device 200 includes at least one second spray body 210, the second spray body 210 is provided with a third spray head 220, the third spray head 220 is in communication with a conveying pipeline in the second spray body 210, that is, the second spray body 210 can be fixed on the fixed deck 10 by welding or other ways, the second spray body 210 is connected with a storage system to supply the third spray head 220 with spraying liquid, and the hot runaway vehicle 30 can be sprayed by the third spray head 220.

[0101] The second spraying body 210 can also be provided as one or more. When provided as multiple, the adjacent second spraying bodies 210 can also be connected through pipes that can transmit spraying liquid.

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

[0103] In addition, a third electromagnetic valve 230 can also be provided to control the opening and closing of the third spray head 220. Of course, the third electromagnetic valve 230 is also connected with the controller, and the controller uniformly controls when a heat runaway vehicle 30 appears in the corresponding area.

[0104] As shown in FIGS. 6 and 7, the third electromagnetic valve 230 and the third spray head 220 can be provided on the opposite sides of the second spraying body 210. As shown in FIGS. 8 and 9, the third electromagnetic valve 230 and the third spray head 220 can be provided on the same side of the second spraying body 210. The specific adjustment can be made according to the actual situation, and the present embodiment does not limit this.

[0105] In some possible embodiments, as shown in FIGS. 5 and 6, at least one end of the first spraying body 110 and the second spraying body 210 is provided with a quick connector 500, which is used to connect a storage system for supplying spraying liquid through a conveying hose. When multiple first spraying bodies 110 or multiple second spraying bodies 210 are provided, quick connectors 500 can be provided at both ends of the spraying body. Such a setting mode enables the first spraying body 110 and the second spraying body 210 to be quickly plugged with various pipes through the quick connector 500, effectively improving the assembly efficiency.

[0106] The pipes for connecting adjacent first spraying bodies 110 and adjacent second spraying bodies 210 are preferably hoses, which can be deformed to adapt to various use conditions. The hoses and the conveying hose can be high-pressure explosion-proof hoses, which can withstand high working pressure and are usually made of high-strength materials such as high-strength fibers. The high-pressure explosion-proof hose has a multi-layer structure design, which can effectively prevent explosion caused by excessive pressure or external impact, and can be suitable for various chemical media, has good corrosion resistance, excellent high-temperature resistance and flexibility, and is very suitable for environments that need to be extinguished.

[0107] The high-pressure explosion-proof hose and the quick connector 500 are used for connection, so that the pipeline deformation caused by the deck deformation due to the extrusion of the vehicle is reduced as much as possible, and the damaged high-pressure explosion-proof hose is convenient to overhaul and replace.

[0108] In some possible embodiments, an automatic hose reel can also be arranged to arrange the conveying hose, so as to prevent the conveying hose from being difficult to drag due to knotting.

[0109] Specifically, the automatic hose reel can be fixed on the side of the car carrier, and the conveying hose is connected with the storage system at one end, connected with the second spraying device 200 or the first spraying device 100 at the other end, and wound on the automatic hose reel at the middle part, so as to control the length of the conveying hose between the second spraying device 200 or the first spraying device 100 through the automatic hose reel.

[0110] The automatic hose reel generally includes a shell, a reel, a spring mechanism, a locking mechanism and a guide mechanism, the reel is used for winding the conveying hose, the spring mechanism is used for providing power for automatic winding, the locking mechanism allows the user to lock the conveying hose at any length, and the guide mechanism ensures that the conveying hose is uniformly wound. The structure and principle of the automatic hose reel are well known to those skilled in the art, and will not be described here.

[0111] In addition, as shown in FIG. 10, when the second spraying device 200 is arranged on the upper surface of the fixed deck 10, if a vehicle passes through, the second spraying device 200 can be crushed and the first spraying device 100 can be damaged.

[0112] Therefore, when the second spraying device 200 is arranged on the upper surface of the fixed deck 10, the fire extinguishing system can further include at least one protection piece 400, the protection piece 400 is arranged on the upper surface of the fixed deck 10, the second spraying device 200 is arranged in the protection piece 400, and the protection piece 400 is provided with a spraying groove 410 for spraying the spraying liquid of the third nozzle 220.

[0113] Thus, the second spraying device 200 is protected by the protection piece 400, so as to avoid the vehicle directly crushing on the second spraying device 200 and damaging the second spraying device 200.

[0114] In some possible embodiments, the protection piece 400 is a rubber protection strip, the second spraying device 200 is located in the rubber protection strip, the spraying groove 410 is arranged at the top of the rubber protection strip, at least one side of the rubber protection strip is provided with a connecting hole 420, so that the second spraying device 200 can be connected with the storage system for conveying the spraying liquid through the connecting hole 420, and the rubber protection strip can effectively protect the second spraying device 200 and avoid excessive vibration when the vehicle passes through.

[0115] Wherein, the delivery hose can be connected with the quick connector 500 in the spray tank 410 through the connecting hole 420, or the end of the quick connector 500 can be extended to be connected with the delivery hose through the connecting hole 420.

[0116] It can be understood that the protection member 400 can also be made of other materials as long as it can withstand repeated rolling of vehicles and can also protect the second spray device 200 inside, which is not limited in the embodiment.

[0117] In addition, the installation position of the second spray device 200 on the fixed deck 10 is fixed, and basically one second spray body 210 needs to be arranged under each vehicle, therefore, the two ends of the second spray body 210 can be provided with quick connectors 500, and the high-pressure explosion-proof hose is connected between the adjacent two second spray bodies 210, and the high-pressure explosion-proof hose and the quick connector 500 can be directly plugged, which is very convenient to connect. Moreover, each third spray head 220 is provided with a separate third electromagnetic valve 230 to control opening and closing, so that only one second spray body 210 needs to be connected with the storage system, so that the spray liquid can reach all the third spray heads 220, which helps to reduce the number of delivery hoses between the storage system and the second spray body 210, and reduces the arrangement difficulty.

[0118] In some cases, vehicles can be parked above and below the fixed deck 10, at this time, as shown in FIGS. 11 and 12, the second spray device 200 can be installed on the lower surface of the fixed deck 10, and the fourth spray head 240 is arranged on the second spray body 210, the fourth spray head 240 is in communication with the delivery pipeline inside the second spray body 210, the fourth spray head 240 is arranged on the two sides of the second spray body 210 opposite to the third spray head 220, the fixed deck 10 is provided with a mounting hole penetrating through the fixed deck 10, and the fourth spray head 240 is at least partially inserted into the mounting hole, the fourth spray head 240 is used for spraying the hot runaway vehicle 30 above the fixed deck 10, and the third spray head 220 is used for spraying the hot runaway vehicle 30 below the fixed deck 10, 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 installation difficulty, and at the same time, the second spray device 200 is installed on the lower surface of the fixed deck 10, which can also avoid the second spray device 200 being rolled by vehicles.

[0119] In addition, the fourth electromagnetic valve 250 can also be arranged to control the opening and closing of the fourth spray head 240, and of course the fourth electromagnetic valve 250 is also connected with the controller and is controlled uniformly by the controller.

[0120] In some possible implementation manners, the automobile transport ship is generally provided with fireproof partitions, that is, the area between several decks is taken as a partition, and adjacent fireproof partitions are separated to avoid that the vehicle in one fireproof partition causes influence on the vehicle in another fireproof partition when the vehicle in the fireproof partition is in thermal runaway. The sealing member 600 can be added to seal the installation hole towards one end of the second spraying main body 210 at the fixed deck 10 requiring fireproof partition, so as to meet the requirement of the fireproof partition.

[0121] The third nozzle 220 needs to be at least partially inserted into the installation hole, so an avoiding hole 610 can be formed in the sealing member 600. The avoiding hole 610 is a through hole, one end wall of the avoiding hole 610 is sealingly connected with the second spraying main body 210, and the other end wall is sealingly connected with the lower surface of the fixed deck 10. The avoiding hole 610 is opposite to the installation hole, and of course, the avoiding hole 610 is also opposite to the connection position of the fourth nozzle 240 and the second spraying main body 210, so that the fourth nozzle 240 can extend into the installation hole through the avoiding hole 610.

[0122] The sealing member 600 can be sealingly connected with the fixed deck 10 and the second spraying main body 210 by welding or other connection manners, as long as the sealing is achieved, which is not limited in the embodiment.

[0123] In addition, the fixed feet 260 can also be arranged at two ends of the second spraying main body 210. The fixed feet 260 are connected with the lower surface of the fixed deck 10 by welding or other connection manners away from the second spraying main body 210, so as to assist the connection between the second spraying main body 210 and the fixed deck 10, reduce the influence of the deformation of the fixed deck 10 under the extrusion of the vehicle on the welding seam between the sealing member 600 and the fixed deck 10, and further improve the sealing effect.

[0124] Of course, the fixed feet 260 can also be arranged at other positions, and the number thereof can be adjusted at will. The embodiment is only used for illustration, and is not limited thereto.

[0125] In some possible implementation manners, the first nozzle 120, the second nozzle 130, the third nozzle 220 and the fourth nozzle 240 are threadedly connected with the first spraying main body 110 and the second spraying main body 210. That is, the interfaces of the first nozzle 120, the second nozzle 130, the third nozzle 220 and the fourth nozzle 240 are provided with external threads or internal threads, and the first spraying main body 110 and the second spraying main body 210 are provided with threads matched with the threads, so that the convenience of replacement of the first nozzle 120, the second nozzle 130, the third nozzle 220 and the fourth nozzle 240 can be improved.

[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 be connected with the nozzles through threads, buckles, or the like, and a sealing ring is arranged at the connection to ensure sealing, thereby further facilitating 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 also be a solid cone-shaped 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 is preferably at least capable of covering one vehicle, so as to better cover the thermal runaway vehicle 30 when spraying, and to have a certain isolation effect on the thermal runaway vehicle 30, thereby reducing the impact of the thermal runaway vehicle 30 on the surrounding and above vehicles.

[0128] The present disclosure also provides an automobile transport ship including at least one fixed deck 10 and one movable deck 20, and further including the fire extinguishing system in the above embodiments. After the fire extinguishing system is assembled corresponding to the fixed deck 10 and the movable deck 20, the vehicle on the automobile transport ship can be sprayed from the bottom and the top of the thermal runaway vehicle 30 when the thermal runaway vehicle 30 occurs, which can directly extinguish the fire and cool the battery pack, and also has a certain isolation effect on the thermal runaway vehicle 30, thereby preventing the fire from spreading to the surrounding vehicles, and also helps to prevent the high-temperature smoke from spreading upwards to affect the vehicles on the upper deck.

[0129] It can be understood that the installation mode of the fire extinguishing system with the movable deck 20 and the fixed deck 10, and the use principle of the fire extinguishing system have been described in detail in the above embodiments, and thus will not be repeated here.

[0130] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

1. A fire extinguishing system for extinguishing a fire in an installation of a storage or transport vehicle having a plurality of decks, including at least one movable deck (20), characterized in that, The fire extinguishing system comprises at least two spraying devices, at least one spraying device is arranged on each of two adjacent decks to spray the thermal runaway vehicle (30) between the two adjacent decks from the top and the bottom through the spraying device; At least one spraying device is arranged on the movable deck (20), and the spraying device (100) is movable relative to the movable deck (20) to adjust the spraying area of the spraying device (100) above or below the movable deck (20).

2. The fire extinguishing system of claim 1, wherein, A controller is further included to obtain the position information of the thermal runaway vehicle (30) and control the spraying device (100) to move to the corresponding area of the thermal runaway vehicle (30) according to the position information.

3. The fire extinguishing system of claim 2, wherein, The plurality of decks further comprises at least one fixed deck (10), and the at least two spraying devices comprise at least one first spraying device (100) and at least one second spraying device (200), wherein the first spraying device (100) is arranged on the movable deck, and the second spraying device (200) is arranged on the fixed deck.

4. The fire extinguishing system of claim 3, wherein, The first spraying device (100) is provided with a detection device for obtaining scene information above or below the movable deck (20), and the controller is in communication connection with the detection device, and the controller is further used to control the first spraying device (100) to move according to the scene information so that the spraying area of the first spraying device (100) covers the thermal runaway vehicle (30).

5. The fire extinguishing system of claim 4, wherein, The detection device comprises at least one infrared camera.

6. A fire extinguishing system according to claim 3 or 4, characterised in that At least one slide rail (300) is further included, which is connected with the lower surface of the movable deck (20), and the first spraying device (100) moves along the slide rail (300).

7. The fire extinguishing system of claim 6, wherein, The slide rail (300) is arranged side by side with a plurality of slide rails, and the distance between adjacent slide rails (300) is 4-8m.

8. A fire extinguishing system according to claim 6 or 7, characterised in that The first spraying device (100) comprises an electromagnet (170), which is in communication connection with the controller, and the controller is further used to control the electromagnet (170) to be turned on after the first spraying 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).

9. The fire extinguishing system according to any one of claims 3-6, characterized in that, The first spraying device (100) further comprises at least one first spraying body (110), a first nozzle (120) and a second nozzle (130) are arranged on the first spraying body (110), the first nozzle (120) and the second nozzle (130) are both communicated with the conveying pipeline inside the first spraying body (110), and the first nozzle (120) and the second nozzle (130) are oppositely arranged on both sides of the first spraying body (110), the first nozzle (120) is used for spraying the hot runaway vehicle (30) below the movable deck (20), and the second nozzle (130) is used for spraying the hot runaway vehicle (30) above the movable deck (20).

10. The fire extinguishing system of claim 9, wherein, At least one spraying hole is arranged on the movable deck (20), a nozzle of the second nozzle (130) is opposite to the spraying hole, or the second nozzle (130) is partially inserted into the spraying hole.

11. A fire extinguishing system according to claim 9 or 10, characterised in that The second spraying device (200) comprises at least one second spraying body (210), and a third nozzle (220) is arranged on the second spraying body (210), and the third nozzle (220) is communicated with the conveying pipeline inside the second spraying body (210).

12. The fire extinguishing system of claim 11, wherein, Quick connectors (500) are arranged at least at one end of the first spraying body (110) and the second spraying body (210), and the quick connectors (500) are used for connecting a storage system for supplying spraying liquid through a conveying hose.

13. The fire extinguishing system of claim 12, wherein, At least one protection member (400) is further arranged on the upper surface of the fixed deck (10), the second spraying device (200) is arranged inside the protection member (400), and a spraying groove (410) for spraying liquid of the third nozzle (220) is arranged on the protection member (400).

14. The fire extinguishing system of claim 13, wherein, The protection member (400) is a rubber protection strip, the second spraying device (200) is located in the rubber protection strip, the spraying groove (410) is arranged at the top of the rubber protection strip, at least one connecting hole (420) is arranged on one side of the rubber protection strip, and the conveying hose is connected with the quick connector (500) through the connecting hole (420).

15. The fire extinguishing system according to any one of claims 11-14, characterized in that, The fourth nozzle (240) is further arranged on the second spraying body (210) and communicated with the conveying pipeline inside the second spraying body (210), the fourth nozzle (240) and the third nozzle (220) are oppositely arranged on both sides of the second spraying body (210), the fixed deck (10) is provided with a mounting hole penetrating through the fixed deck (10), and the fourth nozzle (240) is at least partially inserted into the mounting hole, the fourth nozzle (240) is used for spraying the hot runaway vehicle (30) above the fixed deck (10), and the third nozzle (220) is used for spraying the hot runaway vehicle (30) below the fixed deck (10).

16. The fire extinguishing system of claim 15, wherein, Further comprising a seal (600) configured to seal an end of the mounting hole towards below the fixed deck (10).

17. The fire extinguishing system of claim 16, wherein, The seal (600) is provided with a clearance hole (610) in the middle, one end wall of the clearance hole (610) is sealingly connected with the second spray body (210), the other end wall is sealingly connected with the lower surface of the fixed deck (10), and the clearance hole (610) is opposite to the mounting hole, so that the fourth spray head (240) can extend through the clearance hole (610) into the mounting hole.

18. The fire extinguishing system according to any one of claims 15-17, characterized in that, The first spray head (120), the second spray head (130), the third spray head (220) and the fourth spray head (240) are each controlled to open and close by an electromagnetic valve, and all the electromagnetic valves are in communication connection with the controller.

19. A car carrier comprising at least one movable deck (20), characterized in that Further comprising the fire extinguishing system according to any one of claims 1-18. Further comprising the fire extinguishing system according to any one of claims 1-18.

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