Fire extinguishing system of battery swap station
By installing a cross-type water supply fire protection system within the battery swapping station, and using fire pumps and solenoid valves to control the pipelines, battery thermal runaway fire suppression can be achieved without the need for an additional water source. This solves the problems of inconvenient site selection and high cost of battery swapping stations, improves safety, and reduces planning costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-24
AI Technical Summary
Existing battery swapping stations require additional water supply in the event of battery thermal runaway, leading to inconvenient site selection and high planning costs.
Design a fire protection system for a battery swapping station that requires no additional water source. This system involves installing first and second fire protection devices within the battery compartments, using fire pumps and pipelines to achieve cross-water supply, controlling the on/off state of the pipelines with solenoid valves, and spraying fire extinguishing media with a sprinkler assembly, thus enabling cross-water supply and fire suppression between the battery compartments.
It enables timely fire suppression and cooling in the event of battery thermal runaway, reduces reliance on additional water sources, and decreases site selection requirements and costs.
Smart Images
Figure CN224024094U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of battery swap station fire fighting, especially to a battery swap station fire fighting system. BACKGROUND
[0002] The battery swap station is an important supporting facility of the electric vehicle, and a large number of batteries and charging machines are usually stored in the battery swap station. In the process of battery storage and charging, once thermal runaway occurs, it will cause a fire, which seriously threatens personal and property safety. Therefore, the fire safety of the battery swap station is particularly important.
[0003] The common way to deal with thermal runaway and fire of the battery swap station is to use water to cool and extinguish the fire. Therefore, the supply of water needs to be considered in the early stage of the site selection of the battery swap station, which makes the site selection of the battery swap station inconvenient and indirectly increases the planning cost of the battery swap station. In addition, it is a big problem in the field to build a battery swap station without a fixed water supply. SUMMARY
[0004] The utility model provides a kind of battery swap station fire fighting system without additional water supply, including several battery compartments, fire-fighting assembly is arranged in the battery compartment, fire-fighting assembly is connected by pipeline between the fire-fighting assembly, fire-fighting assembly includes first fire-fighting device and second fire-fighting device, first fire-fighting device and second fire-fighting device are connected by pipeline, first fire-fighting device is used to accommodate thermal runaway battery, first fire-fighting device is also used to store fire extinguishing medium, and second fire-fighting device is used to spray battery compartment.
[0005] Further, it further includes fire water pump, fire water pump is connected with first fire-fighting device and second fire-fighting device respectively, fire water pump is used to extract fire extinguishing medium from first fire-fighting device, and fire water pump is also used to pump fire extinguishing medium to second fire-fighting device.
[0006] Further, the battery compartment includes first battery compartment and second battery compartment, and the fire water pump is arranged in the first battery compartment and / or the second battery compartment.
[0007] Further, the first fire-fighting device includes a fire-fighting box and an electromagnetic valve, the fire-fighting box is used to store fire extinguishing medium, the fire-fighting box is also used to accommodate thermal runaway battery, and the electromagnetic valve is used to control the on-off of the pipeline between the fire-fighting box and the fire water pump.
[0008] Further, it further includes first pipeline and second pipeline, the first pipeline is connected between the fire-fighting box in the first battery compartment and the fire water pump, the first pipeline is provided with a first electromagnetic valve, the second pipeline is connected between the fire-fighting box in the second battery compartment and the fire water pump, and the second pipeline is provided with a second electromagnetic valve.
[0009] Further, the second fire-fighting device comprises a spraying assembly for spraying fire-extinguishing medium to the first battery compartment and / or the second battery compartment, and a solenoid valve for controlling the opening and closing of a pipeline between the spraying assembly and the fire-fighting water pump.
[0010] Further, the spraying assembly further comprises a first nozzle and a second nozzle, the first nozzle is arranged above the battery rack, and the second nozzle is arranged on the side of the battery rack.
[0011] Further, the spraying assembly further comprises a first spraying pipeline, a second spraying pipeline and a third spraying pipeline, the first spraying pipeline is connected with the fire-fighting water pump, the second spraying pipeline is connected between the first spraying pipeline and the first nozzle, and the third spraying pipeline is connected between the first spraying pipeline and the second nozzle.
[0012] Further, the third pipeline and the fourth pipeline are further included, the third pipeline is connected between the spraying assembly in the first battery compartment and the fire-fighting water pump, a third solenoid valve is arranged on the third pipeline, the third solenoid valve is used for controlling the opening and closing of the third pipeline, the fourth pipeline is connected between the spraying assembly in the second battery compartment and the fire-fighting water pump, a fourth solenoid valve is arranged on the fourth pipeline, and the fourth solenoid valve is used for controlling the opening and closing of the fourth pipeline.
[0013] Further, the battery replacement station further comprises a battery replacement channel arranged between the first battery compartment and the second battery compartment, and the battery replacement channel is used for parking a new energy vehicle to be replaced.
[0014] The battery replacement station fire-fighting system provided by the utility model realizes timely fire extinguishing and cooling when the battery is in thermal runaway, can take water from the first fire-fighting device in another battery compartment and spray and extinguish the open fire through the second fire-fighting device when the battery compartment is on fire and the first fire-fighting device in the battery compartment is occupied, realizes cross water supply between the two battery compartments, has good fire extinguishing effect and does not need additional water supply, has low requirements on the site selection of the battery replacement station and indirectly reduces a large amount of cost. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic view of the battery replacement station fire-fighting system provided by the utility model.
[0016] Figure 2 It is a schematic view of the battery replacement station fire-fighting system and the battery rack in the utility model.
[0017] Figure 3 It is a schematic view of the spraying assembly in the utility model.
[0018] In the figure: 1, first fire-fighting device; 11, fire-fighting box; 2, second fire-fighting device; 21, spraying assembly; 211, first spray head; 212, second spray head; 213, first spraying pipeline; 214, second spraying pipeline; 215, third spraying pipeline; 3, first battery compartment; 4, second battery compartment; 5, fire-fighting water pump; 61, first pipeline; 62, second pipeline; 63, third pipeline; 64, fourth pipeline; 71, first electromagnetic valve; 72, second electromagnetic valve; 73, third electromagnetic valve; 74, fourth electromagnetic valve; 8, battery replacement channel. DETAILED DESCRIPTION
[0019] In order to further clarify the technical means and effects taken by the utility model to achieve the predetermined invention purpose and the effects, the utility model is described in detail as follows by combining with the drawings and the preferred embodiments.
[0020] It should be noted that the terms "first", "second", "third", "fourth" and the like in the specification and claims of the utility model are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.
[0021] Please refer to Figures 1 to 3The battery replacement station fire extinguishing system provided by the utility model comprises a plurality of battery compartments, each of which is provided with a fire extinguishing assembly, the fire extinguishing assemblies in different battery compartments are connected through pipelines, each fire extinguishing assembly comprises a first fire extinguishing device 1 and a second fire extinguishing device 2, the first fire extinguishing device 1 is used for accommodating the battery in thermal runaway, the first fire extinguishing device 1 is also used for storing fire extinguishing medium, and the second fire extinguishing device 2 is used for spraying the first battery compartment 3 and / or the second battery compartment 4. Specifically, in the embodiment, two battery replacement compartments are arranged in the battery replacement station, namely the first battery compartment 3 and the second battery compartment 4, the first battery compartment 3 and the second battery compartment 4 are respectively provided with battery racks, the battery racks store batteries, a battery replacement channel 8 is arranged between the first battery compartment 3 and the second battery compartment 4, a new energy automobile to be replaced is parked in the battery replacement channel 8, the first battery compartment 3 and the second battery compartment 4 are both provided with fire extinguishing assemblies, that is to say, the first battery compartment 3 and the second battery compartment 4 are respectively provided with the first fire extinguishing device 1 and the second fire extinguishing device 2; the first fire extinguishing device 1 can store fire extinguishing medium, for example, water, foam extinguishing agent and the like, the second fire extinguishing device 2 can spray the fire extinguishing medium, the first fire extinguishing device 1 and the second fire extinguishing device 2 both comprise pipelines through which the fire extinguishing medium can flow, the first fire extinguishing device 1 and the second fire extinguishing device 2 are connected through the pipelines, and the first fire extinguishing device 1 and the second fire extinguishing device 2 in the first battery compartment 3 are also connected with the first fire extinguishing device 1 and the second fire extinguishing device 2 in the second battery compartment 4 through the pipelines. That is to say, the first fire extinguishing device 1 in the first battery compartment 3 can accommodate the battery in thermal runaway in the first battery compartment 3 and extinguish and cool the battery by using the fire extinguishing medium in the first fire extinguishing device 1; the first fire extinguishing device 1 in the second battery compartment 4 can accommodate the battery in thermal runaway in the second battery compartment 4 and extinguish and cool the battery by using the fire extinguishing medium in the first fire extinguishing device 1; when the first battery compartment 3 catches fire, the second fire extinguishing device 2 in the first battery compartment 3 can take water from the first fire extinguishing device 1 in the first battery compartment 3 and / or the second battery compartment 4 and spray the fire extinguishing medium to the first battery compartment 3, and when the second battery compartment 4 catches fire, the second fire extinguishing device 2 in the second battery compartment 4 can take water from the first fire extinguishing device 1 in the first battery compartment 3 and / or the second battery compartment 4 and spray the fire extinguishing medium to the first battery compartment 3. The battery replacement station fire extinguishing system of the utility model realizes timely extinguishing and cooling of the battery in thermal runaway by the first fire extinguishing device 1 in the first battery compartment 3 and the second battery compartment 4, when the first battery compartment 3 and the second battery compartment 4 catch fire and the first fire extinguishing device 1 in the corresponding battery compartment is occupied, water can also be taken from the first fire extinguishing device 1 in the other battery compartment and sprayed by the second fire extinguishing device 2 to extinguish the open fire, cross-type water supply between the two battery compartments is realized, the extinguishing effect is good, additional water supply is not needed, the site selection requirement of the battery replacement station is low, and a large amount of cost is indirectly reduced.
[0022] Further, the battery swap station fire-fighting system further comprises a fire-fighting water pump 5, the fire-fighting water pump 5 is connected with the first fire-fighting device 1 and the second fire-fighting device 2, and the fire-fighting water pump 5 is used for extracting fire extinguishing medium from the first fire-fighting device 1 and pumping out fire extinguishing medium to the second fire-fighting device 2. Specifically, in the embodiment, the fire-fighting water pump 5 is connected with the first fire-fighting device 1 in the first battery compartment 3 through the first pipeline 61, so as to extract fire extinguishing medium from the first fire-fighting device 1 in the first battery compartment 3; the fire-fighting water pump 5 is also connected with the first fire-fighting device 1 in the second battery compartment 4 through the second pipeline 62, so as to extract fire extinguishing medium from the first fire-fighting device 1 in the second battery compartment 4; the fire-fighting water pump 5 is also connected with the second fire-fighting device 2 in the first battery compartment 3 through the third pipeline 63, so as to pump out fire extinguishing medium to the second fire-fighting device 2 in the first battery compartment 3; and the fire-fighting water pump 5 is also connected with the second fire-fighting device 2 in the second battery compartment 4 through the fourth pipeline 64, so as to pump out fire extinguishing medium to the second fire-fighting device 2 in the second battery compartment 4. Since the fire-fighting water pump 5 is connected with the first fire-fighting device 1 and the second fire-fighting device 2 through the pipelines, the fire-fighting water pump 5 can be arranged in the first battery compartment 3 and / or the second battery compartment 4, or can be arranged at other positions in the battery swap station, for example, in a station room or a control room; the arrangement modes of the first pipeline 61, the second pipeline 62, the third pipeline 63 and the fourth pipeline 64 are arranged correspondingly according to the position of the fire-fighting water pump 5, for example, when the fire-fighting water pump 5 is arranged in the second battery compartment 4, the first pipeline 61 and the third pipeline 63 pass through the walls between the first battery compartment 3 and the battery swap channel 8 and between the second battery compartment 4 and the battery swap channel 8 in sequence, and then extend into the second battery compartment 4 and are connected with the fire-fighting water pump 5. In particular, in the preferred embodiment of the utility model, the fire-fighting water pump 5 can also pump out fire extinguishing medium to the first fire-fighting device 1 in the first battery compartment 3 through the first pipeline 61, and can also pump out fire extinguishing medium to the first fire-fighting device 1 in the second battery compartment 4 through the second pipeline 62, so that the fire-fighting water pump 5 arranged in this way can take the fire extinguishing medium stored in another first fire-fighting device 1 temporarily in emergency when the fire extinguishing medium of any first fire-fighting device 1 is insufficient.
[0023] Further, the first fire-fighting device 1 in the utility model includes a fire-fighting box 11 and a solenoid valve, the fire-fighting box 11 is used for storing fire extinguishing medium, the fire-fighting box 11 is also used for accommodating the thermal runaway battery, and the solenoid valve is used for controlling the on-off of the pipeline between the fire-fighting box 11 and the fire-fighting water pump 5.Specifically, in the embodiment, the fire-fighting box 11 at least includes a water tank for storing fire extinguishing medium, the fire-fighting box 11 is part of a station control PLC system, the station control PLC system further includes a conveying mechanism, a supporting mechanism, a position sensor and a controller for conveying the thermal runaway battery from the battery rack to the corresponding first fire-fighting device 1; the first pipeline 61 is connected between the fire-fighting box 11 in the first battery compartment 3 and the fire-fighting water pump 5, and the second pipeline 62 is connected between the fire-fighting box 11 in the second battery compartment 4 and the fire-fighting water pump 5; the first solenoid valve 71 and the second solenoid valve 72 are respectively arranged on the first pipeline 61 and the second pipeline 62, the first solenoid valve 71 controls the on-off of the first pipeline 61, and the second solenoid valve 72 controls the on-off of the second pipeline 62.It is easy to understand that when the first solenoid valve 71 cuts off the first pipeline 61, the fire-fighting water pump 5 cannot extract fire extinguishing medium from the first fire-fighting device 1 in the first battery compartment 3, and cannot pump fire extinguishing medium out of the first fire-fighting device 1 in the first battery compartment 3; when the second solenoid valve 72 cuts off the second pipeline 62, the fire-fighting water pump 5 cannot extract fire extinguishing medium from the first fire-fighting device 1 in the second battery compartment 4, and cannot pump fire extinguishing medium out of the first fire-fighting device 1 in the second battery compartment 4.
[0024] Please pay attention to Figure 2 and Figure 3, further, the second fire fighting device 2 in the utility model includes spray assembly 21 and electromagnetic valve, spray assembly 21 is used to spray fire extinguishing medium to first battery compartment 3 and / or second battery compartment 4, electromagnetic valve is used to control the on-off of the pipeline between spray assembly 21 and fire water pump 5.Specifically, in the embodiment, third pipeline 63 is connected between spray assembly 21 in first battery compartment 3 and fire water pump 5, fourth pipeline 64 is connected between spray assembly 21 in second battery compartment 4 and fire water pump 5;Third electromagnetic valve 73 and fourth electromagnetic valve 74 are respectively arranged on third pipeline 63 and fourth pipeline 64, third electromagnetic valve 73 controls the on-off of third pipeline 63, and fourth electromagnetic valve 74 controls the on-off of fourth pipeline 64.It is easily understood that when third electromagnetic valve 73 cuts off third pipeline 63, fire water pump 5 cannot pump out fire extinguishing medium to the second fire fighting device 2 in first battery compartment 3;When fourth electromagnetic valve 74 cuts off fourth pipeline 64, fire water pump 5 cannot pump out fire extinguishing medium to the second fire fighting device 2 in second battery compartment 4.More specifically, when battery thermal runaway and open fire occur in first battery compartment 3 simultaneously, first electromagnetic valve 71 cuts off first pipeline 61, fourth electromagnetic valve 74 cuts off fourth pipeline 64, and the station control PLC system in first battery compartment 3 rapidly grabs the thermal runaway battery in first battery compartment 3 and sends it into fire-fighting box 11, and the thermal runaway battery is extinguished and cooled by using the fire extinguishing medium in fire-fighting box 11, while fire water pump 5 extracts fire extinguishing medium from first fire fighting device 1 in second battery compartment 4 and pumps out fire extinguishing medium to second fire fighting device 2 in first battery compartment 3, that is, successively via second pipeline 62 and third pipeline 63 to second fire fighting device 2 in first battery compartment 3, and spray assembly 21 in first battery compartment 3 sprays battery rack and battery thereon to extinguish fire and cool down.The utility model provides a solution for battery thermal runaway for two battery compartments by two fire-fighting boxes 11 of two first fire fighting devices 1, when one fire-fighting box 11 is occupied, the other fire-fighting box 11 can still provide fire extinguishing medium for any second fire fighting device 2, ensuring that the second fire fighting device 2 works normally with sufficient fire extinguishing medium, and can cope with open fire in the battery compartment when battery thermal runaway occurs, greatly reducing the safety risk when multiple fire risks occur simultaneously.
[0025] Please pay attention to Figure 3, further, the spraying assembly 21 further comprises a first spray head 211, a second spray head 212, a first spraying pipeline 213, a second spraying pipeline 214 and a third spraying pipeline 215, the first spray head 211 is arranged above the battery rack, and the first spray head 211 is used for spraying the battery rack and the batteries thereon from above; the second spray head 212 is arranged on the side of the battery rack, and the second spray head 212 is used for spraying the battery rack and the batteries thereon from the side; the second spraying pipeline 214 and the third spraying pipeline 215 are connected with the first spraying pipeline 213; the first spraying pipeline 213 is used for being connected with the fire pump 5; the second spraying pipeline 214 is used for connecting the first spray head 211 with the first spraying pipeline 213; and the third spraying pipeline 215 is used for connecting the second spray head 212 with the first spraying pipeline 213. Specifically, in the embodiment, the spraying assembly 21 arranged in the first battery compartment 3 and the second battery compartment 4 is the same, therefore, the first battery compartment 3 is taken as an example for description, one end of the first spraying pipeline 213 is connected with the third pipeline 63, and the first spraying pipeline 213 is arranged on the top of the first battery compartment 3 and arranged along the length direction of the first battery compartment 3; one end of the second spraying pipeline 214 is connected with the first spraying pipeline 213, and the second spraying pipeline 214 is arranged on the top of the first battery compartment 3 and arranged along the width direction of the first battery compartment 3, that is, the second spraying pipeline 214 is a transverse branch of the first spraying pipeline 213, and a plurality of first spray heads 211 are arranged on the second spraying pipeline 214 and arranged at intervals; the upper end of the third spraying pipeline 215 is connected with the first spraying pipeline 213, and the third spraying pipeline 215 is arranged along the height direction of the first battery compartment 3, that is, the third spraying pipeline 215 is a longitudinal branch of the first spraying pipeline 213, and a plurality of second spray heads 212 are arranged on the third spraying pipeline 215 and arranged at intervals. Preferably, the first spray head 211 and the second spray head 212 in the utility model are both open spray heads with atomizing spraying function, which can atomize the liquid fire extinguishing agent through the atomizing core and the atomizing through hole, and the atomized particle diameter can meet the fire extinguishing requirement. The first spray head 211 and the second spray head 212 arranged in this way have strong fire extinguishing effect, can spray the batteries on the battery rack at the same time, and can also spray other electronic components such as cables in the battery compartment, and compared with the traditional fire spray head, the water consumption per unit time can be reduced, and the dependence on additional water source when selecting the site of the battery swap station can be reduced.
[0026] In summary, the battery swap station fire extinguishing system of the utility model realizes timely fire extinguishing and cooling of the battery when the battery is in thermal runaway, when the battery compartment is on fire and the first fire extinguishing device in the corresponding battery compartment is occupied, water can be taken from the first fire extinguishing device in the other battery compartment and sprayed through the second fire extinguishing device to extinguish the open fire, cross water supply between the two battery compartments is realized, the fire extinguishing effect is good, no additional water supply is needed, the site selection requirement of the battery swap station is low, and a large amount of cost is indirectly reduced.
[0027] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A fire protection system for a battery swapping station, characterized in that: It includes several battery compartments, each of which is equipped with a fire-fighting assembly. The fire-fighting assemblies are connected by pipes. Each fire-fighting assembly includes a first fire-fighting device (1) and a second fire-fighting device (2). The first fire-fighting device (1) and the second fire-fighting device (2) are connected by pipes. The first fire-fighting device (1) is used to contain the thermally runaway battery and store the fire-extinguishing medium. The second fire-fighting device (2) is used to spray the battery compartment.
2. The battery swapping station fire protection system as described in claim 1, characterized in that: It also includes a fire pump (5), which is connected to the first fire-fighting device (1) and the second fire-fighting device (2) respectively. The fire pump (5) is used to extract extinguishing medium from the first fire-fighting device (1) and pump extinguishing medium to the second fire-fighting device (2).
3. The battery swapping station fire protection system as described in claim 2, characterized in that: The battery compartment includes a first battery compartment (3) and a second battery compartment (4), and the fire pump (5) is located in the first battery compartment (3) and / or the second battery compartment (4).
4. The battery swapping station fire protection system as described in claim 3, characterized in that: The first fire-fighting device (1) includes a fire box (11) and a solenoid valve. The fire box (11) is used to store fire extinguishing media and contain thermal runaway batteries. The solenoid valve is used to control the opening and closing of the pipeline between the fire box (11) and the fire pump (5).
5. The battery swapping station fire protection system as described in claim 4, characterized in that: It also includes a first pipeline (61) and a second pipeline (62). The first pipeline (61) is connected between the fire pump (5) and the fire box (11) in the first battery compartment (3). A first solenoid valve (71) is installed on the first pipeline (61). The second pipeline (62) is connected between the fire pump (5) and the fire box (11) in the second battery compartment (4). A second solenoid valve (72) is installed on the second pipeline (62).
6. The battery swapping station fire protection system as described in claim 3, characterized in that: The second fire-fighting device (2) includes a sprinkler assembly (21) and a solenoid valve. The sprinkler assembly (21) is used to spray fire extinguishing medium into the first battery compartment (3) and / or the second battery compartment (4). The solenoid valve is used to control the opening and closing of the pipeline between the sprinkler assembly (21) and the fire pump (5).
7. The battery swapping station fire protection system as described in claim 6, characterized in that: The spray assembly (21) further includes a first nozzle (211) and a second nozzle (212), the first nozzle (211) being disposed above the battery rack and the second nozzle (212) being disposed on the side of the battery rack.
8. The battery swapping station fire protection system as described in claim 7, characterized in that: The sprinkler assembly (21) further includes a first sprinkler pipe (213), a second sprinkler pipe (214), and a third sprinkler pipe (215). The first sprinkler pipe (213) is connected to the fire pump (5), the second sprinkler pipe (214) is connected between the first sprinkler pipe (213) and the first nozzle (211), and the third sprinkler pipe (215) is connected between the first sprinkler pipe (213) and the second nozzle (212).
9. The battery swapping station fire protection system as described in claim 6, characterized in that: It also includes a third pipe (63) and a fourth pipe (64). The third pipe (63) is connected between the sprinkler assembly (21) in the first battery compartment (3) and the fire pump (5). A third solenoid valve (73) is provided on the third pipe (63) and the third solenoid valve (73) is used to control the opening and closing of the third pipe (63). The fourth pipe (64) is connected between the sprinkler assembly (21) in the second battery compartment (4) and the fire pump (5). A fourth solenoid valve (74) is provided on the fourth pipe (64) and the fourth solenoid valve (74) is used to control the opening and closing of the fourth pipe (64).
10. The battery swapping station fire protection system as described in claim 3, characterized in that: It also includes a battery swapping channel (8), which is located between the first battery compartment (3) and the second battery compartment (4). The battery swapping channel (8) is used to park new energy vehicles waiting to be swapped.