Fire extinguishing system of battery swap station

Abstract

The utility model discloses a fire extinguishing system of a battery swap station, and relates to the technical field of fire extinguishing of battery swap stations. Comprising a gas fire extinguishing assembly and a water spraying fire extinguishing assembly, the gas fire extinguishing assembly comprises a gas pipeline and a fire extinguishing medium storage container, the gas pipeline is communicated with the fire extinguishing medium storage container, and a plurality of gas nozzles are formed in the gas pipeline; the water spraying fire extinguishing assembly comprises a liquid pipeline, and a plurality of spraying nozzles are arranged on the liquid pipeline. The fire extinguishing device has the beneficial effects that through a mode of combining gas fire extinguishing and water spraying fire extinguishing, the fire extinguishing means are more, the gas fire extinguishing mode is added, the fire extinguishing duration is prolonged, and the fire extinguishing requirement of the current battery swap station is met.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology for battery swapping stations, and in particular to a fire protection system for battery swapping stations. Background Technology

[0002] With the increasing popularity of electric vehicles, battery swapping stations, as an important supporting facility, have become particularly important for fire safety. Battery swapping stations store a large number of batteries and chargers. During battery storage and charging, thermal runaway could potentially cause a fire, seriously threatening personal safety and property. Therefore, an effective fire protection system is needed to address this fire risk.

[0003] Currently, battery swapping stations use water spraying. Fire water tanks are set up around the stations. However, water spraying consumes a large amount of water when extinguishing fires inside the stations, and there are no subsequent fire extinguishing methods once the water in the tanks is used up.

[0004] This type of fire suppression system uses only one method and cannot meet the needs of battery swapping stations for rapid and continuous cooling, especially given the frequent occurrence of battery overheating and spontaneous combustion. It fails to meet the current fire suppression requirements of battery swapping stations. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a fire protection system for a battery swapping station, which has fire extinguishing methods beyond water spraying and has a long fire extinguishing duration.

[0006] This utility model provides a fire protection system for a battery swapping station, including a gas extinguishing component and a water spray extinguishing component. The gas extinguishing component includes a gas pipeline and a fire extinguishing medium storage container. The gas pipeline is connected to the fire extinguishing medium storage container, and multiple gas nozzles are provided on the gas pipeline. The water spray extinguishing component includes a liquid pipeline, and multiple spray nozzles are provided on the liquid pipeline.

[0007] Optionally, the gas pipeline includes a first connecting pipeline and a first spray pipeline, with both ends of the first connecting pipeline connected to the extinguishing medium storage container and the first spray pipeline, respectively. A plurality of gas nozzles are provided in the first spray pipeline. The liquid pipeline includes a second connecting pipeline and a second spray pipeline, with one end of the second connecting pipeline connected to the second spray pipeline. A plurality of spray nozzles are provided in the second spray pipeline.

[0008] Optionally, the extinguishing ranges of the gas nozzle and the spray nozzle at least partially overlap.

[0009] Optionally, a solenoid valve is installed on the gas pipeline.

[0010] Optionally, it also includes a composite detector capable of detecting smoke, gas, and temperature, which is installed within the battery swapping station.

[0011] Optionally, it may also include multiple cameras, which are installed within the battery swapping station.

[0012] Optionally, there are multiple composite detectors, and multiple cameras are installed corresponding to multiple composite detectors, such that the shooting range of one camera includes at least the detection range of one composite detector.

[0013] Optionally, one end of the second connecting pipe is connected to the second sprinkler pipe, and the other end of the second connecting pipe is provided with a fire-fighting interface.

[0014] Optionally, the fire extinguishing medium storage container stores a fire extinguishing medium, wherein the fire extinguishing medium is perfluorohexanone.

[0015] Optionally, the system further includes a controller, the solenoid valve being connected to the controller, the controller controlling the opening and closing of the solenoid valve.

[0016] The beneficial effects of this utility model are as follows: by combining gas extinguishing and water spray extinguishing, there are more extinguishing methods, and the addition of gas extinguishing method extends the extinguishing duration, thus meeting the current extinguishing needs of battery swapping stations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a battery swapping station fire protection system according to the present invention.

[0019] In the picture:

[0020] Gas pipeline 10, first connecting pipeline 11, first spray pipeline 12, gas nozzle 121;

[0021] Fire extinguishing medium storage container 20;

[0022] Liquid pipeline 30, second connecting pipeline 31, fire interface 311, second sprinkler pipeline 32;

[0023] Spray nozzle 40;

[0024] Composite detector 50;

[0025] Camera 60;

[0026] Solenoid valve 70;

[0027] Controller 80. Detailed Implementation

[0028] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0030] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0032] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0033] like Figure 1As shown, this embodiment provides a fire suppression system for a battery swapping station, including a gas extinguishing system and a water spray extinguishing system. The gas extinguishing system and the water spray extinguishing system are used for gas extinguishing and liquid extinguishing respectively within the battery swapping station. The gas extinguishing system includes a gas pipeline 10 and an extinguishing medium storage container 20. The extinguishing medium storage container 20 stores the extinguishing medium. In this embodiment, the extinguishing medium is perfluorohexanone (PFH), which is a liquid extinguishing medium that is easily vaporized at room temperature and pressure. Its extinguishing principle mainly relies on evaporative cooling and chemical inhibition. It is understood that other common extinguishing media can also be used. The gas pipeline 10 is connected to the extinguishing medium storage container 20. Multiple gas nozzles 121 are provided on the gas pipeline 10. When fire suppression is needed within the battery swapping station, the PPHAN in the extinguishing medium storage container 20 is transported from the gas pipeline 10 to the gas nozzles 121 and sprayed into the battery swapping station to extinguish the fire. The water spray fire extinguishing system includes a liquid pipeline 30 with multiple spray nozzles 40. The liquid pipeline 30 can be connected to an external water source. When fire extinguishing is required in the battery swapping station, water from the external water source is transported to the spray nozzles 40 through the liquid pipeline 30, and the spray nozzles 40 spray the water into the battery swapping station to extinguish the fire.

[0034] By combining gaseous and water spray fire suppression methods, firefighting options are increased. Compared to traditional water spray alone, this method offers more options and achieves better fire suppression results. The addition of gaseous suppression allows for initial gas suppression, followed by water spray once the gaseous agent is depleted, resulting in a longer fire suppression duration that meets the current fire suppression requirements of battery swapping stations. Alternatively, gaseous and liquid fire suppression can be used simultaneously to improve efficiency. Another approach is to use liquid suppression first, interspersed with gas suppression, employing an alternating liquid-gas fire suppression method to further enhance fire suppression efficiency.

[0035] Furthermore, the gas pipeline 10 includes a first connecting pipeline 11 and a first spray pipeline 12. The two ends of the first connecting pipeline 11 are connected to the extinguishing medium storage container 20 and the first spray pipeline 12, respectively. Multiple gas nozzles 121 are sequentially arranged along the length of the first spray pipeline 12. The liquid pipeline 30 includes a second connecting pipeline 31 and a second spray pipeline 32. One end of the second connecting pipeline 31 is connected to the second spray pipeline 32. Multiple spray nozzles 40 are sequentially arranged along the length of the second spray pipeline 32. The first spray pipeline 12 and the second spray pipeline 32 are spaced apart and parallel to each other. Connecting the extinguishing medium storage container 20 and the first spray pipeline 12 via the first connecting pipeline 11 allows for more flexible configuration of the gas extinguishing components within the battery swapping station. The first spray pipeline 12, which outputs the extinguishing medium, can be placed in a desired location within the station, such as the battery storage area. By connecting the second connecting pipe 31 to the second spray pipe 32, the water spray fire extinguishing components can be configured more flexibly in the battery swapping station. The second spray pipe 32, which plays the role of water spraying, can be set in the required position in the battery swapping station, and the first spray pipe 12 and the second spray pipe 32 can be distributed in parallel and at intervals in the battery swapping station to play a fire extinguishing role together.

[0036] The extinguishing ranges of the gas nozzles 121 on the first spray pipe 12 and the spray nozzles 40 on the second spray pipe 32 overlap at least partially. They can overlap partially or completely, that is, the first spray pipe 12 and the second spray pipe 32 can be arranged in parallel and at intervals, and the gas nozzles 121 on the first spray pipe 12 and the spray nozzles 40 on the second spray pipe 32 are aligned or slightly staggered, so that the extinguishing media sprayed from the gas nozzles 121 and the spray nozzles 40 are roughly the same or overlap. Under the superposition of gas extinguishing and liquid extinguishing, a better extinguishing effect can be achieved.

[0037] Meanwhile, one end of the second connecting pipe 31 is connected to the second sprinkler pipe 32, and the other end of the second connecting pipe 31 is equipped with a fire-fighting interface 311. The fire-fighting interface 311 can be connected to an outdoor fire hydrant or fire truck, allowing an outdoor fire pump to pump water from the fire hydrant or fire truck into the second connecting pipe 31. Compared to the current water tank supply, this ensures a sufficient water supply and avoids insufficient water supply to meet fire-fighting needs. It is understandable that the fire-fighting interface 311 can also be connected to a water tank via a pump to pump water from the tank into the battery swapping station.

[0038] Currently, the ventilation requirements of battery swapping stations mean that these stations are not enclosed spaces, resulting in a higher concentration of larger smoke particles. The detectors currently used are mostly photoelectric smoke detectors, which rely on a single detection method and are highly sensitive to larger smoke particles, leading to a high false alarm rate. Furthermore, these detectors are relatively weak at detecting fine smoke particles, such as those generated in the early stages of a fire, and cannot detect them in time.

[0039] Therefore, this embodiment also includes a composite detector 50, which is capable of detecting smoke, gas and temperature. The composite detector 50 is installed in the battery swapping station to detect smoke, gas and temperature in the battery swapping station. It can detect the small smoke particles generated in the early stage of the fire and issue an alarm in time to control the fire within a small range of impact as much as possible.

[0040] To further enhance safety and prevent fires from occurring without triggering the composite detector 50, the battery swapping station fire protection system provided in this embodiment also includes multiple cameras 60. These cameras 60 are installed inside the battery swapping station and capture images of the scene inside the station. In the event of a fire, the fire can be detected even if the composite detector 50 is not triggered.

[0041] Meanwhile, to accurately locate the fire location and promptly control the fire when the composite detector 50 is triggered, or to verify the fire status when the composite detector 50 is triggered to prevent false triggering, this embodiment also includes a controller 80. The number of composite detectors 50 is multiple (only one is shown in the illustration, but multiple can be used in actual applications). Multiple cameras 60 are installed corresponding to multiple composite detectors 50, ensuring that the shooting range of one camera 60 at least includes the detection range of one composite detector 50. When a composite detector 50 is triggered, the corresponding camera 60 is located based on the triggered detector 50. The situation within the battery swapping station is observed through this camera 60 to verify whether a fire has occurred or to accurately locate the fire location. For example, each composite detector 50 in the battery swapping station is assigned a unique address number and its specific installation location can be defined via the controller 80. The detector's number and installation location are linked to the cameras 60 within the station. When a composite detector 50 alarms, the corresponding camera 60's image automatically pops up based on the reported detector number, allowing platform personnel to verify the fire situation and ensure its timeliness and accuracy. If the camera 60 indicates a false alarm by one of the composite detectors 50, fire suppression is not required. To ensure controllability of the gas extinguishing system, a solenoid valve 70 is installed on the gas pipeline 10. The solenoid valve 70 is connected to the controller 80, which controls its opening and closing. The controller 80 is also connected to the composite detector 50. When the composite detector 50 detects a fire, the controller 80 automatically opens the solenoid valve 70 to extinguish the fire with gas. Meanwhile, when the camera 60 verifies that the composite detector 50 in the battery swapping station is falsely triggered, and the solenoid valve 70 is opened by the controller 80, the controller 80 can close the solenoid valve 70, so that the gas extinguishing component will not be activated.

[0042] Furthermore, since the battery swapping station is not a sealed environment, the extinguishing agent is prone to leakage, leading to reduced fire extinguishing efficiency. In the event of a fire, the controller 80 logic controls the spraying time and frequency of perfluorohexanone to stabilize the concentration of the extinguishing agent within the station at a certain ratio, thereby improving fire extinguishing efficiency. For example, the extinguishing agent is stored in the extinguishing agent storage container 20, and a solenoid valve 70 is installed on the first connecting pipe 11 of the gas extinguishing assembly for releasing the extinguishing agent. The extinguishing agent is released through the gas pipeline 10 and the gas nozzle 121. The flow rate of the gas nozzle 121 is fixed per minute, and the start and stop times of the solenoid valve 70 can be determined through simulation analysis and flow calculation. The release of the solenoid valve 70 is controlled by the controller 80, thus allowing the setting of the start and stop times of the controller 80 to control the concentration of the extinguishing agent within the station, significantly improving the fire extinguishing effect. This compensates for the deficiency of extinguishing agent leakage caused by the inability of the battery swapping station to be completely sealed.

[0043] In summary, the fire protection system for the battery swapping station provided in this embodiment has high fire detection accuracy and high fire extinguishing efficiency. When a fire occurs, it can first ensure the concentration of the fire extinguishing medium in the battery swapping station by regularly and quantitatively dispensing perfluorohexanone. After the perfluorohexanone is exhausted, it can be connected to the fire truck or fire hydrant through the fire interface 311 of the second connecting pipe 31 to continuously control the fire. Compared with the traditional closed sprinkler system, the cost can be greatly reduced while the fire extinguishing effect is basically the same and the duration is long.

[0044] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire protection system for a battery swapping station, characterized in that: The device includes a gas extinguishing assembly and a water spray extinguishing assembly. The gas extinguishing assembly includes a gas pipeline (10) and an extinguishing medium storage container (20). The gas pipeline (10) is connected to the extinguishing medium storage container (20). The gas pipeline (10) is provided with a plurality of gas nozzles (121). The water spray extinguishing assembly includes a liquid pipeline (30). The liquid pipeline (30) is provided with a plurality of spray nozzles (40).

2. The battery swapping station fire protection system according to claim 1, characterized in that: The gas pipeline (10) includes a first connecting pipeline (11) and a first spray pipeline (12). The two ends of the first connecting pipeline (11) are respectively connected to the fire extinguishing medium storage container (20) and the first spray pipeline (12). A plurality of gas nozzles (121) are provided on the first spray pipeline (12). The liquid pipeline (30) includes a second connecting pipeline (31) and a second spray pipeline (32). One end of the second connecting pipeline (31) is connected to the second spray pipeline (32). A plurality of spray nozzles (40) are provided on the second spray pipeline (32).

3. The battery swapping station fire protection system according to claim 2, characterized in that: The extinguishing ranges of the gas nozzle (121) and the spray nozzle (40) at least partially overlap.

4. The battery swapping station fire protection system according to claim 1, characterized in that: A solenoid valve (70) is installed on the gas pipeline (10).

5. The battery swapping station fire protection system according to claim 1, characterized in that: It also includes a composite detector (50) capable of detecting smoke, gas and temperature, which is installed in the battery swapping station.

6. The battery swapping station fire protection system according to claim 5, characterized in that: It also includes multiple cameras (60), which are installed in the battery swapping station.

7. The battery swapping station fire protection system according to claim 6, characterized in that: The number of composite detectors (50) is multiple, and multiple cameras (60) are installed corresponding to multiple composite detectors (50), such that the shooting range of one camera (60) includes at least the detection range of one composite detector (50).

8. The battery swapping station fire protection system according to claim 2, characterized in that: One end of the second connecting pipe (31) is connected to the second sprinkler pipe (32), and the other end of the second connecting pipe (31) is provided with a fire interface (311).

9. The battery swapping station fire protection system according to claim 1, characterized in that: The fire extinguishing medium storage container (20) stores a fire extinguishing medium, which is perfluorohexanone.

10. The battery swapping station fire protection system according to claim 4, characterized in that: It also includes a controller (80), the solenoid valve (70) is connected to the controller (80), and the controller (80) controls the opening and closing of the solenoid valve (70).

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