Energy storage system and fire fighting method

Abstract

The present application provides an energy storage system and a fire-fighting method, which relate to the field of batteries. The energy storage system includes a battery device, a plurality of bin groups and a fire-fighting device. Each bin group includes a bin or a plurality of bins stacked in the height direction, and a battery device is provided in each bin. The fire-fighting device includes a medium storage and a pipeline system. The plurality of bin groups are arranged around the medium storage, and the pipeline system connects the medium storage and all the bins. The medium storage is configured to be able to supply the fire-fighting medium stored therein to the bin. The plurality of bin groups of the energy storage system are arranged around the medium storage, so that the length of the pipeline from the medium storage to each bin group is roughly the same, so that the flow resistance of the fire-fighting medium to each bin group is roughly the same, which is conducive to making the flow rate of the fire-fighting medium provided by the medium storage to the plurality of bin groups roughly the same, so that the plurality of bin groups have good fire-fighting capabilities, which is conducive to improving the reliability of the energy storage system.

Description

Technical Field

[0001] The present application relates to the field of batteries, and more specifically, to an energy storage system and a fire-fighting method. Background Art

[0002] With the rapid development of science and technology, electricity has become an indispensable energy source for people's daily lives. To ensure smooth power supply and the normal operation of production and life, energy storage systems are needed. Energy storage systems, as devices that cyclically store and release electrical energy, charge and discharge the energy storage system, storing it in the system or supplying it to power users. Energy storage systems are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0003] In the development of energy storage systems, in addition to improving their performance, improving their reliability is also an issue that cannot be ignored. Therefore, how to improve the reliability of energy storage systems is a technical issue that needs continuous improvement in energy storage technology. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an energy storage system and a fire-fighting method, which can improve the reliability of the energy storage system.

[0005] In a first aspect, an embodiment of the present application provides an energy storage system, which includes a battery device, multiple silo groups and a fire-fighting device, each of the silo groups including one silo or multiple silos stacked in a height direction, the silos being containers, and each of the silos being provided with the battery device; the fire-fighting device includes a medium storage and a pipeline system, multiple silo groups being arranged around the medium storage, the pipeline system connecting the medium storage and all the silos, and the medium storage being configured to supply the fire-fighting medium stored therein to the silos.

[0006] In the above technical solution, the energy storage system includes multiple silo groups. When each silo group includes a silo, and each silo is provided with a battery device, it is beneficial to improve the capacity of the energy storage system. When each silo group includes multiple silos stacked in the height direction, and each silo is provided with a battery device, it is beneficial not only to improve the capacity of the energy storage system, but also to improve the area energy density of the energy storage system. Multiple silo groups are arranged around the medium storage device, so that the length of the pipeline from the medium storage device to each silo group is roughly the same, so that the flow resistance of the fire-fighting medium to each silo group is roughly the same, which is beneficial to make the flow rate of the fire-fighting medium provided by the medium storage device to the multiple silo groups roughly the same, so that the multiple silo groups have good fire-fighting capabilities, which is beneficial to improve the reliability of the energy storage system.

[0007] As an optional technical solution of an embodiment of the present application, the energy storage system includes four silo groups, which are arranged in two rows and two columns, with the two silo groups in each row arranged along a first direction, and the two silo groups in each column arranged along a second direction; along the first direction, there is a first channel between the two silo groups in each row, and the first channel is provided on both sides of the medium storage along the second direction; along the second direction, there is a second channel between the two silo groups in each column, and the second channel is provided on both sides of the medium storage along the first direction.

[0008] In the above technical solution, when the energy storage system includes four silo groups, the four silo groups are arranged in two rows and two columns. This creates a rectangular projection along the height direction of the energy storage system, which is relatively square. This reduces space waste when installing multiple energy storage systems and improves land utilization. The medium reservoir is provided with a second channel on both sides along the first direction, and a first channel on both sides along the second direction. This allows the medium reservoir to be positioned approximately in the middle of the four silo groups, ensuring that the lengths of the pipelines from the medium reservoir to each silo group are approximately the same, and that the flow resistance of the firefighting medium to each silo group is approximately the same. This facilitates ensuring that the flow rate of firefighting medium provided by the medium reservoir to the multiple silo groups is approximately the same, ensuring that each silo group has good firefighting capabilities and improving the reliability of the energy storage system. Furthermore, the first channel and the second channel can serve as isolation channels to prevent a fire in a silo group experiencing thermal runaway from spreading to another silo group. Furthermore, the first channel and the second channel can serve as maintenance accesses, facilitating maintenance of the silo groups.

[0009] As an optional technical solution of an embodiment of the present application, the pipeline system includes a plurality of first tube bodies, each of the bins is connected to a first tube body, and each of the first tube bodies is connected to the medium storage.

[0010] In the above technical solution, each bin is connected to a first tube, and the medium storage can supply firefighting medium to the corresponding bin through the first tube, which is convenient for adjusting the flow of firefighting medium flowing to multiple bins, and the cost is also low.

[0011] As an optional technical solution of the embodiment of the present application, a throttling structure is provided on at least one of the first tubes.

[0012] In the above technical solution, by providing a throttling structure on the first tube body, the throttling structure can adjust the flow rate of the fire-fighting medium supplied by the medium storage to the bin body corresponding to the first tube body, which is conducive to making the flow rate of the fire-fighting medium provided by the medium storage to multiple bin bodies roughly the same, so that multiple bin bodies all have better fire-fighting capabilities, which is conducive to improving the reliability of the energy storage system.

[0013] As an optional technical solution of the embodiment of the present application, a first intercepting device is provided on each of the first tubes.

[0014] In the above technical solution, when the first shutoff device is open, it allows the medium reservoir to supply firefighting medium to the corresponding silo through the first tube. When closed, it prevents the medium reservoir from supplying firefighting medium to the corresponding silo through the first tube. By providing the first shutoff device on the first tube, firefighting medium can be supplied to the corresponding silo as needed, thereby achieving targeted firefighting.

[0015] As an optional technical solution of an embodiment of the present application, a throttling structure is provided on at least one of the first pipe bodies, and along the flow direction of the fire-fighting medium in the first pipe body, the throttling structure is located downstream of the first intercepting device.

[0016] In the above technical solution, the throttling structure is arranged downstream of the first shut-off device, so that the throttling structure can balance the influence of the first shut-off structure on the flow when adjusting the flow, which is conducive to making the flow of fire-fighting medium provided by the medium storage to multiple bins roughly the same, so that multiple bins all have better fire-fighting capabilities, which is conducive to improving the reliability of the energy storage system.

[0017] As an optional technical solution of an embodiment of the present application, the fire-fighting device includes a fire-fighting host and multiple fire-fighting sensors, and the fire-fighting sensor is arranged in each of the warehouse bodies; the multiple fire-fighting sensors and the first intercepting device are all communicatively connected to the fire-fighting host, the fire-fighting sensor is used to obtain the first data in the warehouse body, and the fire-fighting host is used to open the first intercepting device corresponding to the fire-fighting sensor according to the first data.

[0018] In the above technical solution, by installing a fire sensor in each compartment, the accuracy and timeliness of detecting whether the battery device in each compartment has experienced thermal runaway can be improved. Multiple fire sensors and multiple first shutoff devices are all communicatively connected to the fire host. On the one hand, using a single fire host to implement fire control for multiple compartments helps reduce the fire host's footprint, improve the energy density of the energy storage system, and reduce the cost of the fire protection device. On the other hand, the fire host can automatically control the opening of the first shutoff device based on the first data from the fire sensor, which helps improve the degree of automation and the timeliness of fire protection, thereby improving the reliability of the energy storage system.

[0019] As an optional technical solution of an embodiment of the present application, the fire host is used to open the first interception device corresponding to the fire sensor when the first data is greater than a first threshold, and to open the first interception device corresponding to the warehouse adjacent to the warehouse where the fire sensor is located when the first data is greater than a second threshold, and the second threshold is greater than the first threshold.

[0020] In the above technical solution, when the first data is greater than the first threshold, it indicates that a battery device in the compartment where the fire sensor is installed has experienced thermal runaway. The fire host controls the opening of the first shutoff device on the first tube connected to the compartment, thereby supplying firefighting medium into the compartment, thereby achieving a targeted supply of firefighting medium and suppressing further development of thermal runaway. When the first data is greater than the second data, it indicates that the thermal runaway of the battery device in the compartment where the fire sensor is installed has become more serious. The fire host controls the opening of the first shutoff device on the first tube connected to the compartment adjacent to the compartment, thereby supplying firefighting medium to the compartment adjacent to the compartment, reducing the risk of thermal runaway from the compartment spreading to adjacent compartments and facilitating improved reliability of the energy storage system.

[0021] As an optional technical solution of the embodiment of the present application, the fire sensor includes at least one of a temperature sensor, a smoke detector, and a combustible gas detector.

[0022] In the above technical solution, the temperature detector can detect abnormal temperature changes within the storage tank. When the temperature exceeds the normal range and reaches a first threshold, it can indicate a fire. The fire host controls the opening of the first shutoff device corresponding to the temperature sensor to supply firefighting medium to the corresponding storage tank, thereby extinguishing the fire and improving the reliability of the energy storage system. The smoke detector can detect characteristics such as smoke concentration, color, and odor within the storage tank. When the smoke concentration exceeds the normal range and reaches a first threshold, it can indicate a fire. The fire host controls the opening of the first shutoff device corresponding to the smoke detector to supply firefighting medium to the corresponding storage tank, thereby extinguishing the fire and improving the reliability of the energy storage system. The combustible gas detector can detect the concentration of combustible gas within the storage tank. When the combustible gas concentration exceeds the normal range and reaches a first threshold, it can indicate a fire. The fire host controls the opening of the first shutoff device corresponding to the combustible gas detector to supply firefighting medium to the corresponding storage tank, thereby extinguishing the fire and improving the reliability of the energy storage system. When the fire sensors include temperature detectors, smoke detectors, and combustible gas detectors, the temperature information, smoke characteristic information, and combustible gas concentration can be combined to accurately determine the fire development stage, thereby reducing the risk of false fire alarms and enabling the fire host to effectively and accurately control the opening of the first interception device to provide fire-fighting medium to the corresponding bin, thereby achieving fire extinguishing and improving the reliability of the energy storage system.

[0023] As an optional technical solution of an embodiment of the present application, the medium reservoir is provided with a second cut-off device, which is communicatively connected to the fire host. The fire host is used to open the second cut-off device according to the first data, and the medium reservoir is used to provide the fire-fighting medium to the multiple first pipes when the second cut-off device is opened.

[0024] In the above technical solution, when the second shutoff device is open, it allows the medium reservoir to supply firefighting medium to the multiple first tubes. When the second shutoff device is closed, it prevents the medium reservoir from supplying firefighting medium to the multiple first tubes. The provision of the second shutoff device helps reduce the risk of firefighting medium leakage and improves the reliability of the energy storage system.

[0025] As an optional technical solution of an embodiment of the present application, the warehouse body is provided with an exhaust outlet, and the fire-fighting device includes an exhaust mechanism, which is provided corresponding to the exhaust outlet. The exhaust mechanism is communicatively connected to the fire host, and the fire host is used to open the exhaust mechanism corresponding to the fire sensor according to the first data.

[0026] In the above technical solution, when the exhaust mechanism is opened, it can quickly exhaust the oxygen and combustible gases in the silo. On the one hand, it can reduce the concentration of oxygen and combustible gases in the silo, thereby reducing the risk of further thermal runaway. On the other hand, it can create a negative pressure in the silo, thereby facilitating the entry of firefighting media into the silo.

[0027] As an optional technical solution of an embodiment of the present application, the fire-fighting device includes a concentration sensor, which is used to detect the concentration of the fire-fighting medium in the warehouse. The concentration sensor is communicatively connected to the fire-fighting host, and the fire-fighting host is used to close the exhaust mechanism and the first intercepting device when the concentration reaches a third threshold.

[0028] In the above technical solution, the concentration sensor can detect the concentration of the firefighting medium within the silo. When the concentration of the firefighting medium within the silo reaches a third threshold, it indicates that the concentration of the firefighting medium within the silo is high. At this point, the firefighting host can control the exhaust mechanism and the first shutoff device to close, preventing the exhaust mechanism from discharging gas from the silo and the medium storage device from supplying firefighting medium to the silo. This maintains the concentration of the firefighting medium within the silo above the third threshold, achieving a better firefighting effect. This reduces firefighting costs while improving the reliability of the energy storage system.

[0029] As an optional technical solution of the embodiment of the present application, along the height direction of the warehouse body, the position of the exhaust port is higher than the connection position of the first tube body and the warehouse body.

[0030] In the above technical solution, generally speaking, the weight of the fire-fighting medium is heavier than that of oxygen and combustible gas. By making the position of the exhaust port higher than the connection position of the first tube body and the warehouse body, the exhaust mechanism can more easily discharge oxygen and combustible gas from the warehouse body, which is conducive to gradually filling the warehouse body with the fire-fighting medium and improving the reliability of the energy storage system.

[0031] As an optional technical solution of an embodiment of the present application, the warehouse body includes two wall portions arranged opposite to each other, the first tube body is connected to one of the wall portions, and the exhaust port is arranged on the other wall portion.

[0032] In the above technical solution, the first tube body and the exhaust port are respectively arranged on two opposite walls of the bin body, which is conducive to filling the bin body with the fire-fighting medium as much as possible, thereby improving the fire-fighting effect and improving the reliability of the energy storage system.

[0033] As an optional technical solution of an embodiment of the present application, the fire-fighting device includes an alarm, which is communicatively connected to the fire-fighting host, and the fire-fighting host is used to activate the alarm according to the first data.

[0034] In the above technical solution, the fire host can activate the alarm according to the first data to send out an alarm signal to prompt the surrounding people to evacuate, which is conducive to improving the reliability of the energy storage system.

[0035] As an optional technical solution of an embodiment of the present application, the fire host is used to activate the alarm when the first data is greater than a first threshold, and delay opening the first interception device corresponding to the fire sensor, and open the first interception device corresponding to the warehouse adjacent to the warehouse where the fire sensor is located when the first data is greater than a second threshold, and the second threshold is greater than the first threshold.

[0036] In the above technical solution, when the first data is greater than the first threshold, it indicates that a battery device in the warehouse has experienced thermal runaway. At this time, the fire host activates the alarm, prompting nearby personnel to evacuate. After the alarm sounds for a period of time, the fire host controls the opening of the first shutoff device on the first tube connected to the warehouse, thereby supplying firefighting medium into the warehouse, thereby achieving a targeted supply of firefighting medium and suppressing further development of thermal runaway. When the first data is greater than the second data, it indicates that the thermal runaway of the battery device in the warehouse where the fire sensor is installed is already quite serious. The fire host controls the opening of the first shutoff device on the first tube connected to the warehouse adjacent to the warehouse, thereby supplying firefighting medium to the warehouse adjacent to the warehouse, reducing the risk of thermal runaway from the warehouse spreading to the adjacent warehouse, which is beneficial to improving the reliability of the energy storage system.

[0037] As an optional technical solution of an embodiment of the present application, the first tube body includes a tube body and a gradient section, the gradient section includes a first end and a second end, the tube body connects the medium reservoir and the first end, the second end is connected to the warehouse body, and the area of ​​the flow cross section of the gradient section gradually increases in the direction from the first end to the second end.

[0038] In the above technical solution, the relatively small flow cross-section of the tube body facilitates increasing the flow velocity of the firefighting medium, allowing it to be quickly transported to the transition section. By gradually increasing the flow cross-section of the transition section from the first end toward the second end, the end of the first tube body connected to the chamber body is expanded, reducing the flow velocity of the firefighting medium and providing time for the firefighting medium to undergo a phase change.

[0039] As an optional technical solution of an embodiment of the present application, the inner circumference of the gradient section intersects with the first section to form an intersection line, the first section passes through the central axis of the gradient section, and the angle between the intersection line and the central axis is α, satisfying: 15°≤α≤25°.

[0040] In the above technical solution, when α ≥ 15°, while the length of the gradient section remains the same, the cross-sectional area of ​​the gradient section increases significantly, effectively reducing the flow velocity of the firefighting medium and providing time for the firefighting medium to undergo a phase change. When α ≤ 25°, while the length of the gradient section remains the same, the cross-sectional area of ​​the gradient section does not increase significantly, which helps reduce the recoil force on the first tube body after the firefighting medium undergoes a phase change, reduces the risk of damage to the first tube body, and improves the stability of the first tube body.

[0041] As an optional technical solution of the embodiment of the present application, the tube body and the gradient section are detachably connected; or, the tube body and the gradient section are integrally formed.

[0042] In the above technical solution, when the pipe body and the transition section are detachably connected, on the one hand, the pipe body and the transition section can be manufactured separately, which simplifies manufacturing and reduces manufacturing costs. Furthermore, the transition section can be replaced as needed to meet different needs. On the other hand, if the transition section is damaged, it can be replaced and repaired, reducing maintenance costs. When the pipe body and the transition section are integrally formed, the connection between the transition section and the pipe body is more stable, and the firefighting medium is less likely to leak.

[0043] As an optional technical solution of the embodiment of the present application, the pipeline system includes a main pipe, which connects the medium reservoir and the plurality of first pipe bodies.

[0044] In the above technical solution, by providing a main pipe to connect the medium reservoir and the plurality of first pipe bodies, the difficulty of pipeline layout is reduced and the cost of the pipeline system is reduced.

[0045] As an optional technical solution of the embodiment of the present application, the main pipe is provided with an overflow valve.

[0046] In the above technical solution, by arranging an overflow valve on the main pipe, the pipeline system can be protected and the risk of damage to the pipeline system can be reduced.

[0047] As an optional technical solution of the embodiment of the present application, the first pipe body and the main pipe are detachably connected.

[0048] In the above technical solution, by providing a detachable connection between the first tube body and the main tube, the first tube body and the main tube can be disassembled during transportation, allowing them to be transported together, thus reducing transportation costs. During on-site assembly, the first tube body and the main tube can then be connected together. Furthermore, if either the first tube body or the main tube is damaged, they can be replaced and repaired, thereby reducing maintenance costs.

[0049] As an optional technical solution of an embodiment of the present application, the fire-fighting medium includes at least one of carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, and radon.

[0050] In the above technical solution, carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, and radon are chemically stable. They are neither flammable nor combustion-supporting, and they are unlikely to react chemically with components within the silo. This effectively suppresses combustion and provides a good firefighting effect. Carbon dioxide, in particular, is not only low-cost and easy to store, but also absorbs heat during phase transitions, thereby helping to lower the temperature within the silo. Furthermore, carbon dioxide is relatively environmentally friendly.

[0051] As an optional technical solution of an embodiment of the present application, the warehouse group includes multiple warehouses stacked along the height direction, and the dimensions of the multiple warehouses in the warehouse group along the height direction are all smaller than the dimensions of a standard container along the height direction.

[0052] In the above technical solution, when the height dimensions of multiple silos of the silo group are all smaller than the height dimensions of a standard container, the total weight of the components in the silo can be reduced, which is beneficial to improving the problem of overweight transportation and reducing the transportation cost of the energy storage system.

[0053] As an optional technical solution of an embodiment of the present application, the dimensions of the multiple silos of the silo group along their length direction are consistent with the dimensions of the standard container in the length direction, and the dimensions of the multiple silos of the silo group along their width direction are consistent with the dimensions of the standard container in the width direction.

[0054] In the above technical solution, by making the dimensions of the multiple silos of the silo group along their length direction consistent with the dimensions of the length direction of the standard container, and the dimensions of the multiple silos of the silo group along their width direction consistent with the dimensions of the width direction of the standard container, it is conducive to matching the transportation tools and lifting equipment of existing standard containers, reducing the transportation cost of the energy storage system, and thus reducing the use cost of the energy storage system.

[0055] On the second aspect, an embodiment of the present application also provides a fire-fighting method, which is based on the above-mentioned energy storage system and includes: an exhaust step of discharging the gas in the warehouse where thermal runaway occurs; a fire-fighting step of providing the fire-fighting medium stored in the medium storage device to the warehouse where thermal runaway occurs.

[0056] As an optional technical solution of an embodiment of the present application, after the exhaust step and the fire-fighting step, the fire-fighting method further includes: a maintenance step: maintaining the volume concentration of the fire-fighting medium in the warehouse where thermal runaway occurs above a third threshold value for a first preset time.

[0057] In the above technical solution, by maintaining the concentration of the fire-fighting medium in the warehouse above the third threshold value for the first preset time, a better fire-fighting effect is achieved, which is beneficial to reducing the risk of secondary thermal runaway and improving the reliability of the energy storage system.

[0058] As an optional technical solution of an embodiment of the present application, the fire-fighting method also includes: an early warning step: when the first data in the warehouse body is greater than a first threshold, an early warning signal is issued and lasts for a second preset time. After the second preset time, the exhaust step and the fire-fighting step are executed.

[0059] In the above technical solution, when the first data exceeds the first threshold, it indicates that a battery device in the compartment has experienced thermal runaway. At this time, the fire control unit activates the alarm, prompting nearby personnel to evacuate. After the second preset time, the exhaust and firefighting steps are executed, which helps reduce the risk of nearby personnel being exposed to the firefighting medium and endangering them.

[0060] As an optional technical solution of an embodiment of the present application, in the fire-fighting step, when the first data in the warehouse is greater than a second threshold, the fire-fighting medium stored in the medium storage is provided to the warehouse where thermal runaway occurs and the warehouse adjacent to the warehouse where thermal runaway occurs, and the second threshold is greater than the first threshold.

[0061] In the above technical solution, when the first data is greater than the second data, it indicates that the thermal runaway of the battery device in the compartment where the fire sensor is installed has become quite serious. The fire-fighting medium stored in the medium storage device is provided to the compartment where the thermal runaway occurs and the compartments adjacent to the compartment where the thermal runaway occurs, thereby reducing the risk of the thermal runaway of the compartment spreading to the adjacent compartments, which is beneficial to improving the reliability of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0063] Figure 1 A schematic diagram of the structure of an energy storage system provided in some embodiments of the present application;

[0064] Figure 2 A schematic diagram of the internal structure of a warehouse provided in some embodiments of the present application;

[0065] Figure 3 A schematic diagram of the structure of an energy storage system provided in some other embodiments of the present application;

[0066] Figure 4 A schematic top view of an energy storage system provided in some embodiments of the present application;

[0067] Figure 5 A schematic top view of an energy storage system provided in some other embodiments of the present application;

[0068] Figure 6 A schematic top view of an energy storage system provided in some further embodiments of the present application;

[0069] Figure 7A schematic block diagram of a fire-fighting device provided in some embodiments of the present application;

[0070] Figure 8 A schematic block diagram of a fire-fighting device provided in some other embodiments of the present application;

[0071] Figure 9 A schematic block diagram of a fire-fighting device provided in some other embodiments of the present application;

[0072] Figure 10 A cross-sectional view of a silo provided in some embodiments of the present application;

[0073] Figure 11 A schematic block diagram of a fire-fighting device provided in some further embodiments of the present application;

[0074] Figure 12 A schematic block diagram of a fire-fighting device provided in some embodiments of the present application;

[0075] Figure 13 Cross-sectional views of the storage bodies provided in some other embodiments of the present application;

[0076] Figure 14 A schematic top view of an energy storage system provided in some embodiments of the present application;

[0077] Figure 15 A schematic diagram of a control system framework in an energy storage system provided in some embodiments of the present application;

[0078] Figure 16 A schematic diagram of a control system framework in an energy storage system provided in other embodiments of the present application;

[0079] Figure 17 A schematic block diagram of a fire-fighting method provided in some embodiments of the present application;

[0080] Figure 18 A schematic block diagram of a fire-fighting method provided in some other embodiments of the present application;

[0081] Figure 19 A schematic block diagram of a fire-fighting method provided in some further embodiments of the present application.

[0082] Icons: 10-Energy storage system; 100-Battery device; 200-Storage body group; 210-Storage body; 211-Exhaust vent; 212-Air inlet; 220-First channel; 230-Second channel; 300-Firefighting device; 310-Medium storage; 320-Piping system; 321-First pipe body; 3211-Pipe main body; 3212-Gradual section; 32121-First end; 32122-Second end; 32123-Intersection line; 3213-Central axis; 322-Main pipe; 330-Firefighting host; 340-Firefighting sensor; 350-Exhaust mechanism; 360-Concentration sensor; 370-Alarm; 410-Throttling structure; 420-First shut-off device; 430-Second shut-off device; 440-Overflow valve; 20-Firefighting method; 910-Control module; 920-Sub-control module. DETAILED DESCRIPTION

[0083] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0084] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0085] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0086] In addition, the technical terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number of the technical features indicated. In the description of the embodiments of this application, the meaning of "plurality" is two or more, unless otherwise specifically defined.

[0087] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0088] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0089] The battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or hybrid via a busbar.

[0090] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0091] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells with a cable tie.

[0092] In some embodiments, a battery device may include one or more battery packs, each of which may include one or more battery cell assemblies. As an example, a battery pack includes a housing and one or more battery cell assemblies, with the battery cell assemblies being housed within the housing, for example, by a fixed arrangement. As another example, a battery device may include multiple battery packs, which may be connected in series, in parallel, or in a mixed manner.

[0093] As an example, the housing may include a first housing and a second housing. The first housing and the second housing engage to form an enclosed space within the housing to house the battery cell assembly. Enclosed here means covered or closed, and can be either sealed or unsealed. The first housing may be a top cover or a bottom plate.

[0094] As an example, the box may include a top cover, a frame, and a bottom plate, wherein the top cover and the bottom plate are respectively connected to the frame to form a closed space inside the box to accommodate the battery cell assembly.

[0095] In some embodiments, the multiple battery packs included in a battery device can form one or more battery clusters. Thus, the energy storage system provided by embodiments of the present application includes one or more battery clusters to increase the voltage and capacity of the energy storage system. A battery cluster can include multiple battery packs, which are connected in series via a busbar to increase the voltage of the energy storage system. When an energy storage system includes multiple battery clusters, the battery clusters can be connected in series, in parallel, or in a mixed manner.

[0096] Energy storage systems can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage systems can store electrical energy as needed and output it at the appropriate time. For example, an energy storage system can store electrical energy during periods of low electricity demand and provide it to users or electrical equipment during periods of high electricity demand. The energy storage system provided in the embodiments of the present application can be used in any power system that requires an energy storage system.

[0097] In some embodiments, the energy storage system is an energy storage container or an energy storage cabinet.

[0098] In some embodiments, the energy storage system may include a container and one or more battery clusters housed in the container.

[0099] In some embodiments, the energy storage system may include modules such as a thermal management module, a sub-control module, a control module, a power distribution module, and a fire protection module.

[0100] As an example, the thermal management module may include a liquid cooling unit, which provides a first heat exchange medium for regulating the temperature of the battery cells to each battery device through a pipeline.

[0101] For example, a sub-control module can serve as the battery management unit (BMU) of a battery cluster, monitoring and managing the battery cluster. The sub-control module can monitor information such as the battery cluster's current, voltage, power, or temperature. For example, it can control the battery cluster's charge and discharge current and voltage. The sub-control module includes modules such as the slave battery management unit (SBMU) and a fusion switch.

[0102] As an example, the control module can serve as the battery management unit (BMU) of an energy storage system, used to monitor and manage the energy storage system. The control module can monitor information such as the energy storage system's current, voltage, power, state of charge, or temperature. For example, it can control the energy storage system's charge and discharge current and voltage. As an example, the master control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH), and a fiber optic conversion module.

[0103] As an example, the fire protection system includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fires in the energy storage system.

[0104] As an example, the power distribution device can be used to distribute power to the power modules of the energy storage system.

[0105] Currently, judging by market developments, battery devices are becoming increasingly widely used. They are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but are also widely used in energy storage systems such as energy storage containers and energy storage cabinets.

[0106] In related technologies, firefighting is achieved by supplying firefighting medium to multiple energy storage compartments through a medium reservoir. However, the firefighting capabilities of these compartments vary significantly, with some having poor firefighting capabilities. This can hinder timely firefighting when thermal runaway occurs in the battery devices within these compartments, resulting in poor reliability of the energy storage system.

[0107] After research, it was found that the flow rate of fire-fighting medium provided by the medium storage device to multiple energy storage bins varies greatly, resulting in large differences in the fire-fighting capabilities of multiple energy storage bins.

[0108] In view of this, an embodiment of the present application provides an energy storage system comprising a battery device, multiple silo groups, and a firefighting device. Each silo group comprises a silo or multiple silos stacked in a vertical direction, each silo containing a battery device. The firefighting device comprises a medium reservoir and a piping system. The multiple silo groups are arranged around the medium reservoir, and the piping system connects the medium reservoir and all the silos. The medium reservoir is configured to supply its stored firefighting medium to the silos.

[0109] The energy storage system includes multiple silo groups. When each silo group includes a silo, and each silo is equipped with a battery device, it is beneficial to increase the capacity of the energy storage system. When each silo group includes multiple silos stacked in the height direction, and each silo is equipped with a battery device, it is beneficial not only to increase the capacity of the energy storage system, but also to increase the area energy density of the energy storage system. The multiple silo groups are arranged around the medium storage device, so that the length of the pipeline from the medium storage device to each silo group is roughly the same, so that the flow resistance of the firefighting medium to each silo group is roughly the same, which is beneficial to ensure that the flow rate of the firefighting medium provided by the medium storage device to the multiple silo groups is roughly the same, so that the multiple silo groups have good firefighting capabilities, which is beneficial to improve the reliability of the energy storage system.

[0110] The energy storage system described in the embodiments of the present application may include an energy storage container or an energy storage cabinet. The energy storage system may include a power converter system (PCS), which is used to connect between the power generation equipment and the battery device. The power generation equipment is used to generate electrical energy, and the electrical energy generated by the power generation equipment can be stored in the battery device through the power conversion equipment. As an example, the power generation equipment may specifically be a solar panel, a hydropower generation equipment, a thermal power generation equipment, a wind power generation equipment, etc.

[0111] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Figure 1 A schematic structural diagram of an energy storage system 10 provided in some embodiments of the present application. Figure 2 Schematic diagram of the internal structure of the warehouse body 210 provided in some embodiments of the present application. Figure 3 Schematic diagram of the structure of the energy storage system 10 provided in some other embodiments of the present application. Figure 4 A schematic top view of an energy storage system 10 provided in some embodiments of the present application. The present application provides an energy storage system 10, comprising a battery device 100, multiple silo groups 200, and a firefighting device 300. Each silo group 200 comprises a silo 210 or multiple silos 210 stacked in a height direction, each silo 210 containing a battery device 100. The firefighting device 300 comprises a medium reservoir 310 and a piping system 320. The multiple silo groups 200 are arranged around the medium reservoir 310. The piping system 320 connects the medium reservoir 310 and all the silos 210. The medium reservoir 310 is configured to supply the firefighting medium stored therein to the silos 210.

[0112] The energy storage system 10 may include two, three, four, five, or more bin groups 200. Each bin group 200 may include only one bin 210. Each bin group 200 may also include two, three, four, five, or more bins 210. When a bin group 200 includes multiple bins 210, the multiple bins 210 are stacked in a height direction, thereby reducing the footprint of the energy storage system 10 and improving the area energy density of the energy storage system 10.

[0113] It should be noted that the number of bins 210 in the plurality of bin groups 200 is the same. Figure 1 ,exist Figure 1 In the embodiment shown, the number of the bins 210 in each of the bin groups 200 is one. Figure 3 ,exist Figure 3 In the illustrated embodiment, the number of the bin bodies 210 in each of the plurality of bin body groups 200 is two.

[0114] The housing 210 can form a hollow structure, which serves as a storage space for the components of the energy storage system 10 to protect them. The housing 210 accommodates the battery device 100, which means that the battery device 100 is located in the hollow structure formed by the housing 210. The battery device 100 located in the hollow structure of the housing 210 can be connected to the wall of the housing 210 using connectors such as bolts, rivets, and connecting pins. Alternatively, the battery device 100 can be first fixed to a storage rack, and then the storage rack is connected to the wall of the housing 210 using connectors such as bolts, rivets, and connecting pins. This reduces the possibility of the battery device 100 moving due to shaking within the storage space of the housing 210, which helps to reduce the possibility of damage to the battery device 100.

[0115] The medium storage 310 is a container for storing firefighting media. For example, the medium storage 310 may include a tank or bottle. The firefighting medium may be gas, liquid, or solid. Firefighting media may include water, foam, dry powder, carbon dioxide, clean gas, wet chemical extinguishing agent, aerosol, sand, and the like.

[0116] The pipeline system 320 is a pipeline structure connecting the medium storage 310 and all the silos 210 . The firefighting medium stored in the medium storage 310 can be provided to all the silos 210 through the pipeline system 320 .

[0117] The plurality of bin groups 200 are arranged around the media storage 310 such that the distances from the media storage 310 to the plurality of bin groups 200 are substantially the same. The plurality of bin groups 200 can be arranged around the media storage 310. For example, the plurality of bin groups 200 can be arranged in a circular array, with the media storage 310 being located at the center of a circle corresponding to the circumference of the circle.

[0118] When the energy storage system 10 includes three silo groups 200 , the three silo groups 200 can be respectively disposed at three vertices of an equilateral triangle, and the medium storage 310 can be disposed at the position of the midpoint of the equilateral triangle.

[0119] When the energy storage system 10 includes four silo groups 200 , the four silo groups 200 can be respectively disposed at four vertices of a rectangle, and the medium storage 310 can be disposed at the intersection of the diagonals of the rectangle.

[0120] The energy storage system 10 includes multiple silo groups 200. When each silo group 200 includes a silo 210, each silo 210 being equipped with a battery device 100, the capacity of the energy storage system 10 is improved. When each silo group 200 includes multiple silos 210 stacked in a height direction, each silo 210 being equipped with a battery device 100, not only the capacity of the energy storage system 10 is improved, but also the areal energy density of the energy storage system 10 is improved. The multiple silo groups 200 are arranged around the medium storage 310, so that the length of the pipeline from the medium storage 310 to each silo group 200 is approximately the same, resulting in approximately the same flow resistance of the firefighting medium to each silo group 200. This helps ensure that the flow rate of the firefighting medium provided by the medium storage 310 to the multiple silo groups 200 is approximately the same, ensuring that each silo group 200 has good firefighting capabilities and improving the reliability of the energy storage system 10.

[0121] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In some embodiments, the energy storage system 10 includes four silo groups 200, which are arranged in two rows and two columns. The two silo groups 200 in each row are arranged along a first direction, and the two silo groups 200 in each column are arranged along a second direction. In the first direction, a first channel 220 is defined between the two silo groups 200 in each row, and the first channel 220 is provided on both sides of the medium storage 310 in the second direction. In the second direction, a second channel 230 is defined between the two silo groups 200 in each column, and the second channel 230 is provided on both sides of the medium storage 310 in the first direction.

[0122] The energy storage system 10 includes four silo groups 200 arranged in a matrix. Specifically, the four silo groups 200 are arranged in two rows and two columns. Each row of silo groups 200 includes two silo groups 200 arranged along a first direction, and each column of silo groups 200 includes two silo groups 200 arranged along a second direction. The first direction is perpendicular to the second direction.

[0123] Please refer to Figure 1 and Figure 4 , the first direction is the X direction shown in the figure, and the second direction is the Y direction shown in the figure.

[0124] Along the first direction, the two bin groups 200 in each row are spaced apart, and a first channel 220 is formed between the two bin groups 200 in each row.

[0125] Along the second direction, the two bin groups 200 in each column are spaced apart, and a second channel 230 is formed between the two bin groups 200 in each column.

[0126] The medium storage 310 is provided with a second channel 230 on both sides along the first direction, and the medium storage 310 is provided with a first channel 220 on both sides along the second direction. Then, the medium storage 310 is roughly located in the middle position of the four silo groups 200, so that the length of the pipeline from the medium storage 310 to each silo group 200 is roughly the same.

[0127] In other words, a first interval is formed between two adjacent rows of bin body groups 200, the first interval includes the two second channels 230 mentioned above, and a second interval is formed between two adjacent columns of bin body groups 200. The first gap and the second interval are cross-arranged, the second interval includes the two first channels 220 mentioned above, the first interval and the second interval have a common area, and the medium storage 310 is arranged in the common area.

[0128] When the energy storage system 10 includes four silo groups 200, the four silo groups 200 are arranged in two rows and two columns. This creates a rectangular projection along the height direction of the energy storage system 10, which is relatively square. This reduces space waste when installing multiple energy storage systems 10 and improves land utilization. The medium reservoir 310 is provided with a second channel 230 on both sides along the first direction, and a first channel 220 on both sides along the second direction. This allows the medium reservoir 310 to be positioned approximately in the middle of the four silo groups 200, ensuring that the lengths of the pipelines from the medium reservoir 310 to each silo group 200 are approximately the same, and that the flow resistance of the firefighting medium to each silo group 200 is approximately the same. This helps ensure that the flow rate of firefighting medium provided by the medium reservoir 310 to the multiple silo groups 200 is approximately the same, ensuring that each silo group 200 has good firefighting capabilities and improving the reliability of the energy storage system 10. On the other hand, the first channel 220 and the second channel 230 can serve as isolation channels to prevent the fire in the silo group 200 that has thermal runaway from spreading to another silo group 200. On the other hand, the first channel 220 and the second channel 230 can serve as maintenance channels to facilitate maintenance of the silo group 200.

[0129] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In some embodiments, the pipeline system 320 includes a plurality of first pipes 321 , each bin body 210 is connected to a first pipe 321 , and each first pipe 321 is connected to the medium reservoir 310 .

[0130] The piping system 320 includes a plurality of first tubes 321, each corresponding one to a silo 210. One end of each first tube 321 is directly connected to a silo 210, while the other end of each first tube 321 can be directly or indirectly connected to the medium reservoir 310. When the first tube 321 is directly connected to the medium reservoir 310 and the silo 210, the firefighting medium in the medium reservoir 310 can be directly supplied to the silo 210 through the first tube 321. When the first tube 321 is indirectly connected to the medium reservoir 310 through an intermediate tube, the firefighting medium in the medium reservoir 310 can be supplied to the silo 210 through the intermediate tube and the first tube 321.

[0131] Each bin body 210 is connected to a first tube body 321 , and the medium storage 310 can supply firefighting medium to the corresponding bin body 210 through the first tube body 321 , thereby facilitating adjustment of the flow of firefighting medium to multiple bin bodies 210 and reducing costs.

[0132] Please refer to Figure 5 , Figure 5Schematic top view of the energy storage system 10 provided in some embodiments of the present application. In some embodiments, a throttling structure 410 is provided on at least one first tube 321 .

[0133] Among the multiple first tubes 321, only one first tube 321 may be provided with the throttling structure 410, or two first tubes 321 may be provided with the throttling structure 410, or more first tubes 321 may be provided with the throttling structure 410. Of course, all first tubes 321 may also be provided with the throttling structure 410.

[0134] The throttle structure 410 is used to adjust the flow rate in the first tube 321. For example, the flow cross section of the throttle structure 410 may be smaller than the flow cross section of the first tube 321, thereby reducing the flow rate flowing into the first tube 321.

[0135] In some embodiments, the throttling structure 410 is a throttling orifice plate disposed on the first tube 321 .

[0136] In other embodiments, the throttling structure 410 is a flow regulating valve arranged on the first tube body 321. By adjusting the flow regulating valve on at least one first tube body 321, the flow of the fire-fighting medium flowing into multiple bins 210 is balanced, so that the flow of the fire-fighting medium provided by the medium storage 310 to the multiple bins 210 is approximately the same.

[0137] In some other embodiments, the throttling structure 410 is a flow-limiting hole formed in the first tube 321 .

[0138] By setting a throttling structure 410 on the first tube body 321, the throttling structure 410 can adjust the flow rate of the fire-fighting medium supplied by the medium storage 310 to the warehouse body 210 corresponding to the first tube body 321, which is conducive to making the flow rate of the fire-fighting medium provided by the medium storage 310 to the multiple warehouse bodies 210 roughly the same, so that the multiple warehouse bodies 210 all have better fire-fighting capabilities, which is conducive to improving the reliability of the energy storage system 10.

[0139] Please refer to Figure 6 , Figure 6 Schematic top view of the energy storage system 10 provided in some embodiments of the present application. In some embodiments, each first tube 321 is provided with a first shut-off device 420 .

[0140] The first shutoff device 420 is a valve structure used to control the connection or disconnection between the first tube 321 and the silo 210. When the first shutoff device 420 is open, the first tube 321 is connected to the silo 210. When the first shutoff device 420 is closed, the first tube 321 is disconnected from the silo 210.

[0141] The first shut-off device 420 can be a butterfly valve, a ball valve, an electric valve, etc.

[0142] When the first shutoff device 420 is open, it allows the medium reservoir 310 to supply the firefighting medium to the corresponding silo 210 through the first tube 321. When the first shutoff device 420 is closed, it prevents the medium reservoir 310 from supplying the firefighting medium to the corresponding silo 210 through the first tube 321. By providing the first shutoff device 420 on the first tube 321, the firefighting medium can be supplied to the corresponding silo 210 as needed, thereby achieving directional firefighting.

[0143] Please refer to Figure 6 In some embodiments, a throttling structure 410 is provided on at least one first pipe body 321 , and the throttling structure 410 is located downstream of the first shut-off device 420 along the flow direction of the firefighting medium in the first pipe body 321 .

[0144] The phrase "the throttling structure 410 is located downstream of the first shutoff device 420 along the flow direction of the firefighting medium within the first tube 321" means that when the firefighting medium flows within the first tube 321, it first passes through the first shutoff device 420 and then through the throttling structure 410. In other words, along the flow direction of the firefighting medium within the first tube 321, the throttling structure 410 is closer to the chamber 210 than the first shutoff device 420.

[0145] The throttling structure 410 is arranged downstream of the first shut-off device 420, so that the throttling structure 410 can balance the influence of the first shut-off structure on the flow when adjusting the flow, which is beneficial to make the flow of fire-fighting medium provided by the medium storage 310 to multiple bins 210 roughly the same, so that multiple bins 210 all have better fire-fighting capabilities, which is beneficial to improving the reliability of the energy storage system 10.

[0146] Please refer to Figure 6 and Figure 7 , Figure 7 This is a schematic block diagram of a firefighting device 300 provided in some embodiments of the present application. In some embodiments, the firefighting device 300 includes a firefighting host 330 and multiple firefighting sensors 340. Each firefighting sensor 340 is disposed within a compartment 210. The multiple firefighting sensors 340 and the first shutoff device 420 are both communicatively connected to the firefighting host 330. The firefighting sensors 340 are configured to acquire first data within the compartment 210. The firefighting host 330 is configured to activate the first shutoff device 420 corresponding to the firefighting sensor 340 based on the first data.

[0147] The fire sensor 340 is used to obtain first data within the warehouse 210. The first data may be fire data, which can be understood as various phenomena and indicators that can reflect the presence of a fire and related information when a fire occurs, such as smoke, high temperature, flames, combustible gases, etc. Exemplarily, the fire sensor 340 includes a smoke detector, also known as a smoke fire detector, smoke detector, smoke probe, or smoke sensor. The smoke detector can detect the smoke concentration within the warehouse 210 for fire prevention. Exemplarily, the fire sensor includes a temperature sensor, which can be used to detect the ambient temperature within the warehouse 210, the temperature of structural components within the warehouse 210, the temperature of the battery device 100 within the warehouse 210, etc. Exemplarily, the fire sensor 340 includes a combustible gas detector, which can detect the concentration of combustible gases within the warehouse 210 for fire prevention. Combustible gases may include hydrogen, carbon monoxide, etc. Exemplarily, the fire sensor 340 includes a flame detector, which can detect when burning substances generate smoke and heat, as well as visible or invisible light radiation that is not in the atmosphere.

[0148] The fire host 330 is used to control electrical components related to firefighting. Optionally, the fire host 330 can be connected to all fire sensors 340 and all first intercepting devices 420 for communication, and can provide power to the fire sensors 340.

[0149] Optionally, the fire control unit 330 is a control device that can be installed in any of the silos 210. For example, the fire control unit 330 can be installed in the lowest silo 210 in a silo group 200. By installing the fire control unit 330 in a silo 210, the internal space occupied by the fire control unit 330 in the energy storage system 10 can be reduced, thereby allowing the energy storage system 10 to accommodate more battery devices 100, thereby improving the energy density of the energy storage system 10.

[0150] "The fire host 330 is used to open the first interception device 420 corresponding to the fire sensor 340 according to the first data" can be: the fire sensor 340 is used to obtain the first data in the warehouse 210 and send the first data to the fire host 330, and the fire host 330 opens the first interception device 420 corresponding to the fire sensor 340 according to the first data; or the fire sensor 340 is used to obtain the first data in the warehouse 210 and send a first signal to the fire host 330 when the first data exceeds the first threshold, and the fire host 330 opens the first interception device 420 corresponding to the fire sensor 340 according to the first signal.

[0151] It should be noted that “opening the first shut-off device 420 corresponding to the fire sensor 340 ” means opening the first shut-off device 420 on the first tube 321 connected to the chamber 210 where the fire sensor 340 is installed.

[0152] By installing a fire sensor 340 in each compartment 210, the accuracy and timeliness of detecting whether the battery device 100 within each compartment 210 has experienced thermal runaway can be improved. Multiple fire sensors 340 and multiple first shutoff devices 420 are all communicatively connected to the fire host 330. On the one hand, using a single fire host 330 to control firefighting for multiple compartments 210 helps reduce the volume occupied by the fire host 330, improve the energy density of the energy storage system 10, and reduce the cost of the firefighting device 300. On the other hand, the fire host 330 can automatically control the opening of the first shutoff device 420 based on the first data from the fire sensor 340, which helps improve the degree of automation and the timeliness of firefighting, thereby improving the reliability of the energy storage system 10.

[0153] In some embodiments, the fire host 330 is configured to open the first interception device 420 corresponding to the fire sensor 340 when the first data is greater than a first threshold, and to open the first interception device 420 corresponding to the warehouse 210 adjacent to the warehouse 210 where the fire sensor 340 is located when the first data is greater than a second threshold. The second threshold is greater than the first threshold.

[0154] When the fire sensor 340 includes a temperature sensor, the fire host 330 is configured to open the first shutoff device 420 corresponding to the fire sensor 340 when the temperature within the warehouse 210 exceeds a first threshold. When the fire sensor 340 includes a smoke detector, the fire host 330 is configured to open the first shutoff device 420 corresponding to the fire sensor 340 when the smoke concentration within the warehouse 210 exceeds a first threshold. When the fire sensor 340 includes a combustible gas detector, the fire host 330 is configured to open the first shutoff device 420 corresponding to the fire sensor 340 when the combustible gas concentration within the warehouse 210 exceeds a first threshold. When the fire sensor 340 includes at least two of a temperature sensor, a smoke detector, and a combustible gas detector, the fire host 330 opens the first shutoff device 420 corresponding to the fire sensor 340 as long as the detection result of any one of the sensors exceeds the first threshold.

[0155] When the first data in the compartment 210 is greater than the first threshold, it indicates that a battery device 100 in the compartment 210 has experienced thermal runaway. When the first data in the compartment 210 is greater than the second threshold, since the second threshold is greater than the first threshold, it indicates that the thermal runaway of the battery device 100 in the compartment 210 is relatively serious.

[0156] The fire host 330 is further configured to open the first shutoff device 420 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located when the first data exceeds a second threshold. For example, if the compartment 210 where the fire sensor 340 is located is the first compartment, and the compartment 210 adjacent to the first compartment is the second compartment, and the first data within the first compartment exceeds the second threshold, the fire host 330 must open not only the first shutoff device 420 on the first tube 321 connected to the first compartment, but also the first shutoff device 420 on the first tube 321 connected to the second compartment.

[0157] When the first data is greater than the first threshold, it indicates that a battery device 100 in the compartment 210 where the fire sensor 340 is installed has experienced thermal runaway. The fire host 330 controls the first shutoff device 420 on the first tube 321 connected to the compartment 210 to open, thereby supplying firefighting medium into the compartment 210, thereby achieving a targeted supply of firefighting medium and suppressing further development of thermal runaway. When the first data is greater than the second data, it indicates that the thermal runaway of the battery device 100 in the compartment 210 where the fire sensor 340 is installed has become more serious. The fire host 330 controls the first shutoff device 420 on the first tube 321 connected to the compartment 210 adjacent to the compartment 210 to open, thereby supplying firefighting medium into the compartment 210 adjacent to the compartment 210, reducing the risk of thermal runaway of the compartment 210 spreading to the adjacent compartment 210, thereby improving the reliability of the energy storage system 10.

[0158] In some embodiments, the fire sensor 340 includes at least one of a temperature sensor, a smoke detector, and a combustible gas detector.

[0159] The fire sensor 340 may include only a temperature sensor, a smoke detector, or a combustible gas detector. The fire sensor 340 may include only a temperature sensor and a smoke detector, or only a temperature sensor and a combustible gas detector, or only a smoke detector and a combustible gas detector. The fire sensor 340 may include only a temperature sensor, a smoke detector, and a combustible gas detector.

[0160] The temperature detector can detect abnormal temperature changes within the silo 210. When the temperature exceeds the normal range and reaches a first threshold, it can indicate a fire. The fire host 330 controls the opening of the first shutoff device 420 corresponding to the temperature sensor to provide firefighting medium to the corresponding silo 210, thereby extinguishing the fire and improving the reliability of the energy storage system 10. The smoke detector can detect characteristics such as smoke concentration, color, and odor within the silo 210. When the smoke concentration exceeds the normal range and reaches a first threshold, it can indicate a fire. The fire host 330 controls the opening of the first shutoff device 420 corresponding to the smoke detector to provide firefighting medium to the corresponding silo 210, thereby extinguishing the fire and improving the reliability of the energy storage system 10. The combustible gas detector can detect the concentration of combustible gas within the silo 210. When the combustible gas concentration exceeds the normal range and reaches a first threshold, it can indicate the occurrence of a fire. The fire host 330 controls the opening of the first shutoff device 420 corresponding to the combustible gas detector to supply firefighting medium to the corresponding silo 210, thereby extinguishing the fire and improving the reliability of the energy storage system 10. When the fire sensor 340 includes a temperature detector, a smoke detector, and a combustible gas detector, it can combine temperature information, smoke characteristic information, and combustible gas concentration to accurately determine the fire development stage, thereby reducing the risk of false fire alarms and enabling the fire host 330 to effectively and accurately control the opening of the first shutoff device 420 to supply firefighting medium to the corresponding silo 210, thereby extinguishing the fire and improving the reliability of the energy storage system 10.

[0161] Please refer to Figure 8 , Figure 8 Schematic block diagram of firefighting device 300 according to other embodiments of the present application. In other embodiments, medium reservoir 310 is provided with a second shutoff device 430, which is communicatively connected to a fire host 330. Fire host 330 is configured to open second shutoff device 430 based on first data. Medium reservoir 310 is configured to supply firefighting medium to the plurality of first tubes 321 when second shutoff device 430 is opened.

[0162] The second shutoff device 430 is a valve structure used to control the connection or disconnection between the medium reservoir 310 and the first tube 321. When the second shutoff device 430 is open, the first tube 321 and the medium reservoir 310 are connected. When the second shutoff device 430 is closed, the first tube 321 and the medium reservoir 310 are disconnected.

[0163] The second shut-off device 430 can be a butterfly valve, a ball valve, an electric valve, etc.

[0164] The second shutoff device 430 is communicatively connected to the fire host 330, and the fire host 330 can control the opening or closing of the second shutoff device 430. Specifically, the fire host 330 can open the second shutoff device 430 based on the first data, thereby allowing the firefighting medium stored in the medium reservoir 310 to be supplied to the plurality of first pipes 321. Optionally, the fire host 330 is configured to open the second shutoff device 430 when the first data exceeds a first threshold.

[0165] When the second shut-off device 430 is open, it allows the medium reservoir 310 to supply the firefighting medium to the plurality of first tubes 321. When the second shut-off device 430 is closed, it prevents the medium reservoir 310 from supplying the firefighting medium to the plurality of first tubes 321. Providing the second shut-off device 430 helps reduce the risk of firefighting medium leakage and improves the reliability of the energy storage system 10.

[0166] Please refer to Figure 9 and Figure 10 , Figure 9 This is a schematic block diagram of a fire-fighting device 300 provided in some further embodiments of the present application. Figure 10 This is a cross-sectional view of a chamber 210 provided in some embodiments of the present application. In some embodiments, the chamber 210 is provided with an exhaust vent 211. The firefighting device 300 includes an exhaust mechanism 350, which is provided corresponding to the exhaust vent 211. The exhaust mechanism 350 is communicatively connected to a firefighting host 330, which is configured to activate the exhaust mechanism 350 corresponding to the firefighting sensor 340 based on the first data.

[0167] The silo body 210 is provided with an exhaust port 211 , which connects the interior and exterior of the silo body 210 . The exhaust port 211 is used to allow the gas in the silo body 210 to be discharged outward.

[0168] The exhaust mechanism 350 is a mechanism for discharging gas from the silo 210. The exhaust mechanism 350 can be housed within the exhaust port 211 or disposed within the silo 210. The position of the exhaust mechanism 350 corresponds to the position of the exhaust port 211, allowing the gas from the silo 210 to be discharged through the exhaust port 211. The exhaust mechanism 350 includes a fan.

[0169] The exhaust mechanism 350 is communicatively connected to the fire control host 330, and the fire control host 330 can control whether the exhaust mechanism 350 is opened or closed. Specifically, the fire control host 330 can open the exhaust mechanism 350 based on the first data, thereby discharging the gas within the silo 210. Optionally, the fire control host 330 is configured to open the exhaust mechanism 350 when the first data exceeds a first threshold.

[0170] When the exhaust mechanism 350 is opened, it can quickly exhaust the oxygen and combustible gases in the silo 210. This can, on the one hand, reduce the concentration of oxygen and combustible gases in the silo 210, thereby reducing the risk of further thermal runaway. On the other hand, it can create a negative pressure in the silo 210, thereby facilitating the entry of the firefighting medium into the silo 210.

[0171] Please refer to Figure 9 、 Figure 10 and Figure 11 , Figure 11 This is a schematic block diagram of a firefighting device 300 provided in some further embodiments of the present application. The firefighting device 300 includes a concentration sensor 360 for detecting the concentration of the firefighting medium within the silo 210. The concentration sensor 360 is in communication with a firefighting host 330, which is configured to shut down the exhaust mechanism 350 and the first shutoff device 420 when the concentration reaches a third threshold.

[0172] The concentration sensor 360 is a structure for detecting the concentration of the firefighting medium in the silo 210. For example, when the firefighting medium is carbon dioxide, the concentration sensor 360 is a carbon dioxide concentration sensor.

[0173] The concentration sensor 360 is in communication with the fire control unit 330. The fire control unit 330 can open or close the exhaust mechanism 350 and the first shutoff device 420 based on the detection results of the concentration sensor 360. Specifically, the fire control unit 330 can close the exhaust mechanism 350 and the first shutoff device 420 based on the detection results of the concentration sensor 360, thereby stopping the supply of firefighting medium into the silo 210 and discharging the gas within the silo 210 to the outside, thereby maintaining the concentration of the firefighting medium within the silo 210 above a preset concentration. Optionally, the fire control unit 330 is configured to close the exhaust mechanism 350 and the first shutoff device 420 when the concentration of the firefighting medium reaches a third threshold.

[0174] Concentration sensor 360 can detect the concentration of the firefighting medium within silo 210. When the concentration of the firefighting medium within silo 210 reaches a third threshold, it indicates that the concentration of the firefighting medium within silo 210 is high. At this point, firefighting host 330 can control exhaust mechanism 350 and first shutoff device 420 to close, preventing exhaust mechanism 350 from discharging gas from silo 210 and preventing the medium storage device from supplying firefighting medium to silo 210. This maintains the concentration of the firefighting medium within silo 210 above the third threshold, achieving a more effective firefighting effect. This reduces firefighting costs while enhancing the reliability of energy storage system 10.

[0175] Please refer to Figure 9 、 Figure 10 and Figure 11In some embodiments, along the height direction of the silo body 210 , the position of the exhaust port 211 is higher than the connection position between the first tube body 321 and the silo body 210 .

[0176] In some embodiments, the silo body 210 is provided with an air inlet 212 , the first tube body 321 is in communication with the air inlet 212 , and the connection position between the first tube body 321 and the silo body 210 is the position where the air inlet 212 is located.

[0177] Along the height direction of the silo body 210 , the position of the air outlet 211 is higher than the position of the air inlet 212 .

[0178] Generally speaking, the weight of the fire-fighting medium is heavier than that of oxygen and combustible gas. By making the position of the exhaust port 211 higher than the connection position between the first tube body 321 and the warehouse body 210, the exhaust mechanism 350 can more easily discharge oxygen and combustible gas from the warehouse body 210, which is conducive to gradually filling the warehouse body 210 with the fire-fighting medium and improving the reliability of the energy storage system 10.

[0179] Please refer to Figure 9 、 Figure 10 and Figure 11 In some embodiments, the warehouse body 210 includes two oppositely arranged wall portions, the first tube body 321 is connected to one wall portion, and the exhaust port 211 is arranged on the other wall portion.

[0180] The phrase "the silo 210 includes two opposing walls, the first tube 321 is connected to one wall, and the exhaust port 211 is provided on the other wall" means that the first tube 321 and the exhaust port 211 are respectively provided on two opposing walls of the silo 210. In other words, the air inlet 212 and the exhaust port 211 are respectively provided on two opposing walls of the silo 210.

[0181] The first tube 321 and the exhaust port 211 are respectively arranged on two opposite walls of the bin body 210 , which is conducive to filling the bin body 210 with the firefighting medium as much as possible, thereby improving the firefighting effect and the reliability of the energy storage system 10 .

[0182] Please refer to Figure 12 , Figure 12 This is a schematic block diagram of a fire-fighting device 300 provided in some embodiments of the present application. In some embodiments, the fire-fighting device 300 includes an alarm 370, which is communicatively connected to a fire-fighting host 330, and the fire-fighting host 330 is configured to activate the alarm 370 according to the first data.

[0183] The alarm 370 is an electronic product that uses sound, light, air pressure, etc. to remind or warn us that we should take certain actions in order to prevent or avert the consequences of an event.

[0184] Optionally, the alarm 370 may be an audible and visual alarm, a pure sound alarm, a pure light signal alarm, or a graphic display alarm.

[0185] Alarm 370 is communicatively connected to fire host 330, and fire host 330 can control the activation or deactivation of alarm 370. Specifically, fire host 330 can activate alarm 370 based on the first data, thereby causing alarm 370 to sound an alarm, prompting nearby personnel to evacuate. Optionally, fire host 330 is configured to activate alarm 370 when the first data exceeds a first threshold and deactivate alarm 370 after a second preset time.

[0186] The fire host 330 can activate the alarm 370 according to the first data to send out an alarm signal to prompt surrounding people to evacuate, which is beneficial to improving the reliability of the energy storage system 10.

[0187] In some embodiments, the fire host 330 is configured to activate the alarm 370 when the first data is greater than a first threshold, delay opening of the first interception device 420 corresponding to the fire sensor 340, and open the first interception device 420 corresponding to the warehouse 210 adjacent to the warehouse 210 where the fire sensor 340 is located when the first data is greater than a second threshold. The second threshold is greater than the first threshold.

[0188] When the first data exceeds the first threshold, the fire host 330 activates the alarm 370, which emits a warning signal for a second preset time. After the second preset time, the fire host 330 opens the first interception device 420, the second interception device 430, and the exhaust mechanism 350 corresponding to the fire sensor 340.

[0189] The fire host 330 is further configured to open the first shutoff device 420 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located, and the exhaust mechanism 350 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located, when the first data is greater than a second threshold. For example, if the compartment 210 where the fire sensor 340 is located is the first compartment, and the compartment 210 adjacent to the first compartment 210 is the second compartment, and the first data in the first compartment is greater than the second threshold, the fire host 330 is required to open not only the first shutoff device 420 on the first pipe 321 connected to the first compartment and the exhaust mechanism 350 provided in the first compartment, but also the first shutoff device 420 on the first pipe 321 connected to the second compartment and the exhaust mechanism 350 provided in the second compartment.

[0190] The fire host 330 is used to close the exhaust mechanism 350, the first intercepting device 420 and the second intercepting device 430 when the concentration of the fire-fighting medium reaches a third threshold.

[0191] When the first data value is greater than the first threshold, it indicates that a battery device 100 within the compartment 210 has experienced thermal runaway. At this point, the fire host 330 activates the alarm 370, prompting nearby personnel to evacuate. After the alarm 370 sounds for a period of time, the fire host 330 controls the opening of the first shutoff device 420 on the first tube 321 connected to the compartment 210, thereby supplying firefighting medium into the compartment 210. This achieves targeted supply of firefighting medium and suppresses further development of thermal runaway. When the first data value is greater than the second data value, it indicates that the thermal runaway of the battery device 100 within the compartment 210 where the fire sensor 340 is located is already severe. The fire host 330 controls the opening of the first shutoff device 420 on the first tube 321 connected to the compartment 210 adjacent to the compartment 210, thereby supplying firefighting medium into the compartment 210 adjacent to the compartment 210. This reduces the risk of thermal runaway from the compartment 210 spreading to adjacent compartments 210, thereby improving the reliability of the energy storage system 10.

[0192] Please refer to Figure 13 , Figure 13 This is a cross-sectional view of a chamber body 210 provided in some other embodiments of the present application. In some other embodiments, the first tube body 321 includes a main tube body 3211 and a gradient section 3212. The gradient section 3212 includes a first end 32121 and a second end 32122. The main tube body 3211 connects to the medium reservoir 310 and the first end 32121, and the second end 32122 connects to the chamber body 210. The flow cross-section of the gradient section 3212 gradually increases in area from the first end 32121 to the second end 32122.

[0193] The tube body 3211 is the main portion of the first tube body 321 , and the tube body 3211 connects the medium reservoir 310 and the gradient section 3212 .

[0194] The gradient section 3212 is the portion of the first tube body 321 connected to the silo body 210 , and the area of ​​the flow cross section of the gradient section 3212 gradually increases in the direction from the tube main body 3211 to the silo body 210 .

[0195] The transition section 3212 includes a first end 32121 and a second end 32122 oppositely disposed, wherein the first end 32121 is connected to the tube body 3211, and the second end 32122 is connected to the chamber body 210. The flow cross-section of the transition section 3212 gradually increases in area from the first end 32121 to the second end 32122.

[0196] The gradient section 3212 may be in the shape of a truncated cone, or in the shape of a prism.

[0197] It should be noted that the flow cross section is a cross section perpendicular to the extension direction of the gradient section 3212 , and the area of ​​the flow cross section is the cross-sectional area of ​​the space in the gradient section 3212 that allows the firefighting medium to pass through on the flow cross section.

[0198] The relatively small flow cross-section of the tube body 3211 facilitates increasing the flow velocity of the firefighting medium, allowing it to be quickly transported to the transition section 3212. By gradually increasing the flow cross-section of the transition section 3212 from the first end 32121 toward the second end 32122, the end of the first tube body 321 connected to the chamber 210 forms a flared opening, reducing the flow velocity of the firefighting medium and providing time for the firefighting medium to undergo a phase change.

[0199] Please refer to Figure 13 In some embodiments, the inner circumference of the gradient section 3212 intersects with the first section to form an intersection line 32123. The first section passes through the central axis 3213 of the gradient section 3212. The angle between the intersection line 32123 and the central axis 3213 is α, satisfying: 15°≤α≤25°.

[0200] Intersection line 32123 is the intersection line between the inner circumference of the gradient section 3212 and the first section passing through the perpendicular bisector of the gradient section 3212. There are two intersection lines between the inner circumference of the gradient section 3212 and the first section passing through the perpendicular bisector of the gradient section 3212. These two intersection lines 32123 form the same angle with the perpendicular bisector of the gradient section 3212.

[0201] α represents the angle between the intersection line 32123 and the perpendicular bisector. During measurement, the gradient section 3212 can be cut open to measure the angle between the intersection line 32123 and the perpendicular bisector.

[0202] α can be 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, etc.

[0203] When α ≥ 15°, while the length of the transition section 3212 remains constant, the cross-sectional area of ​​the transition section 3212 increases significantly, effectively reducing the flow velocity of the firefighting medium and providing time for the firefighting medium to undergo a phase change. When α ≤ 25°, while the length of the transition section 3212 remains constant, the cross-sectional area of ​​the transition section 3212 does not increase significantly, which helps reduce the recoil force of the firefighting medium on the first tube 321 after the phase change, reduces the risk of damage to the first tube 321, and improves the stability of the first tube 321.

[0204] In some embodiments, the tube body 3211 and the gradient section 3212 are detachably connected.

[0205] "Removable connection" refers to a connection method in which the connecting member and the connected member remain intact and the original connection quality can be maintained after thousands of repeated assembly and disassembly. For example, the pipe body 3211 can be threadedly connected to the gradient section 3212.

[0206] When the tube body 3211 and the transition section 3212 are detachably connected, the tube body 3211 and the transition section 3212 can be manufactured separately, simplifying manufacturing and reducing manufacturing costs. Furthermore, the transition section 3212 can be replaced as needed to meet different needs. Furthermore, if the transition section 3212 is damaged, it can be replaced and repaired, reducing repair costs.

[0207] In other embodiments, the tube body 3211 and the gradient section 3212 are integrally formed.

[0208] The phrase "the tube body 3211 and the gradient section 3212 are integrally formed" means that the tube body 3211 and the gradient section 3212 are an integral structure. For example, the tube body 3211 and the gradient section 3212 can be integrally formed by extrusion.

[0209] When the pipe body 3211 and the gradient section 3212 are integrally formed, the connection stability between the gradient section 3212 and the pipe body 3211 is better, and the fire-fighting medium is not easy to leak.

[0210] Please refer to Figure 14 , Figure 14 Schematic top view of the energy storage system 10 provided in some embodiments of the present application. In some embodiments, the pipeline system 320 includes a main pipe 322 , which connects the medium storage 310 and a plurality of first pipes 321 .

[0211] The main pipe 322 is a tubular structure connecting the medium reservoir 310 and the plurality of first pipes 321. The plurality of first pipes 321 can be considered as multiple branch pipes, each connected to the main pipe 322. The firefighting medium provided by the medium reservoir 310 can enter the plurality of silos 210 through the main pipe 322 and the plurality of first pipes 321.

[0212] By providing the main pipe 322 to connect the medium reservoir 310 and the plurality of first pipe bodies 321 , the difficulty of arranging the pipelines is reduced, and the cost of the pipeline system 320 is reduced.

[0213] Please refer to Figure 14 In some embodiments, the main pipe 322 is provided with a relief valve 440 .

[0214] Relief valve 440 provides safety protection for piping system 320. When the pressure in piping system 320 exceeds a threshold, relief valve 440 opens, discharging a portion of the firefighting medium from piping system 320, keeping the pressure in piping system 320 below the threshold and reducing the risk of accidents caused by excessive pressure in piping system 320.

[0215] By providing the overflow valve 440 on the main pipe 322 , the pipeline system 320 can be protected and the risk of damage to the pipeline system 320 can be reduced.

[0216] In some embodiments, the first tube 321 and the main tube 322 are detachably connected.

[0217] In some embodiments, the first tube 321 and the main tube 322 are threadedly connected.

[0218] In other embodiments, the first tube body 321 and the main tube 322 are butt-jointed and locked by a clamp to achieve a detachable connection.

[0219] By making the first tube body 321 and the main tube 322 detachably connected, they can be disassembled during transportation, allowing them to be transported together, reducing transportation costs. During on-site assembly, the first tube body 321 and the main tube 322 can then be reconnected. Furthermore, if either the first tube body 321 or the main tube 322 is damaged, they can be replaced and repaired, reducing maintenance costs.

[0220] In some embodiments, the firefighting medium includes at least one of carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, and radon.

[0221] Carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, and radon are chemically stable. They are neither flammable nor combustion-supporting. They also rarely react chemically with components within the silo 210, effectively suppressing combustion and providing effective firefighting. Carbon dioxide, in particular, is not only inexpensive and easy to store, but also absorbs heat during phase transitions, thereby helping to lower the temperature within the silo 210. Furthermore, carbon dioxide is relatively environmentally friendly.

[0222] In some embodiments, the warehouse group 200 includes a plurality of warehouses 210 stacked in a height direction, and the dimensions of the plurality of warehouses 210 of the warehouse group 200 in the height direction are all smaller than the dimensions of a standard container in the height direction.

[0223] A standard container may be a standard container size used in transportation, such as 10 feet, 20 feet, 30 feet, 40 feet, or 45 feet, which meets corresponding standards and has corresponding dimensions for length, width, and height. Standard containers may refer to GB / T1413-2023 Series 1 Container Classification, Dimensions, and Rated Weights.

[0224] 10 feet can include: the length dimension is 2991mm, with a tolerance of 0mm-5mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2438mm or less than 2438mm; the tolerance is 0mm-5mm.

[0225] 20 feet can include: the length dimension is 6058mm, with a tolerance of 0mm-6mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0226] 30 feet can include: the length dimension is 9125mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0227] 40 feet can include: the length dimension is 12192mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 0mm-5mm; and the height dimension is 2896mm, 2591mm or not more than 2438mm; the tolerance is 0mm-5mm.

[0228] 45 feet can include: the length dimension is 13716mm, with a tolerance of 0mm-10mm; the width dimension is 2438mm, with a tolerance of 350mm-5mm; and the height dimension is 2591mm or 2896mm; the tolerance is 0mm-5mm.

[0229] In the embodiment of the present application, for warehouse bodies of various sizes, sizes within the range of ±1%, ±2%, ±3%, ±4%, and ±5% of the sizes can be regarded as sizes within the tolerance range.

[0230] In some embodiments, the standard container is a 20-foot standard container, and the height of the standard container is 2896 mm, 2591 mm, or 2438 mm. The height dimension of the warehouse body 210 is less than 2896 mm.

[0231] When the height dimensions of the multiple silos 210 of the silo group 200 are all smaller than the height dimensions of a standard container, the total weight of the components within the silo 210 can be reduced, which is beneficial to improving the problem of overweight transportation and reducing the transportation cost of the energy storage system 10.

[0232] In some embodiments, the height dimensions of the plurality of bins 210 of the bin group 200 are all greater than or equal to one-third of the height dimensions of a standard container.

[0233] When the height dimensions of the multiple silos 210 of the silo group 200 are all greater than or equal to one-third of the height dimensions of a standard container, the energy storage system 10 has high manufacturability and is more convenient to transport and install.

[0234] Optionally, the dimensions of the multiple warehouse bodies 210 of the warehouse body group 200 along the height direction are all greater than or equal to half the dimension of a standard container along the height direction.

[0235] When the height dimensions of the multiple silos 210 of the silo group 200 are all greater than or equal to half the height dimensions of a standard container, the energy storage system 10 has enhanced manufacturability, higher volumetric energy density, and easier transportation and installation. For example, when the multiple silos 210 of the silo group 200 are stacked, they are taller than a standard container. The combined weight of the silos 210 and the components housed therein is low. This arrangement allows the multiple silos 210 of the silo group 200 to be transported individually, and when stacked at the site of use, the energy storage system 10 can hold a higher charge.

[0236] In some embodiments, the sum of the height dimensions of the plurality of bins 210 of the bin group 200 is greater than or equal to the height dimension of a standard container.

[0237] For example, the standard container is a 20-foot standard container, the height of the standard container is 2896 mm, and the sum of the dimensions of the multiple warehouse bodies 210 of the warehouse body group 200 along the height direction is greater than or equal to 2896 mm.

[0238] By ensuring that the sum of the height dimensions of the multiple silos 210 of the silo group 200 is greater than or equal to the height dimension of a standard container, the power capacity of the energy storage system 10 is increased.

[0239] Optionally, the height dimensions of the multiple bins 210 of the bin group 200 are all greater than or equal to 805 mm and less than 2896 mm.

[0240] The dimension of each bin body 210 in the bin body group 200 along the height direction can be any one of 850mm, 900mm, 950mm, 1000mm, 1050mm, 1100mm, 1150mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1800mm, 2000mm, 2100mm, 2200mm, 2300mm, 2400mm, 2500mm, 2600mm, 2700mm, 2800mm, 2895mm or any value between two of them.

[0241] By setting the height dimensions of the multiple silos 210 of the silo group 200 to be greater than or equal to 805 mm and less than 2896 mm, it is beneficial to reduce the total weight of the silo 210 and the components within the silo 210, and can maximize the power of the energy storage system 10, thereby reducing the use cost of the energy storage system 10.

[0242] In some embodiments, the dimensions of the multiple silos 210 of the silo group 200 along their length direction are consistent with the dimensions of the standard container along their length direction, and the dimensions of the multiple silos 210 of the silo group 200 along their width direction are consistent with the dimensions of the standard container along their width direction.

[0243] By ensuring that the dimensions of the multiple silos 210 of the silo group 200 along their length direction are consistent with the dimensions of the standard container along its width direction, and that the dimensions of the multiple silos 210 of the silo group 200 along their width direction are consistent with the dimensions of the standard container along its width direction, it is beneficial to match the transportation tools and slings of existing standard containers, thereby reducing the transportation cost of the energy storage system 10 and thus reducing the use cost of the energy storage system 10.

[0244] In some embodiments, the total weight of the silo 210 and the components disposed within the silo 210 is less than or equal to 36 tons.

[0245] The components disposed in the compartment body 210 include, for example, the battery device 100 , connecting pipelines, the fire fighting host 330 and other components.

[0246] The total weight of the warehouse body 210 and the components disposed therein may be any one of 10 tons, 15 tons, 20 tons, 25 tons, 30 tons, 35 tons, 36 tons, or any value between any two of them.

[0247] By making the total weight of the silo 210 and the components disposed in the silo 210 less than or equal to 36 tons, the transportation limit requirements of some countries can be met, thereby reducing the difficulty and cost of transportation.

[0248] Please refer to Figure 15 , Figure 15This is a schematic diagram of the framework of a control system in an energy storage system 10 provided in some embodiments of the present application. In some embodiments, the energy storage system 10 further includes a control module 910 and a battery monitoring circuit, which is configured to collect second data from the battery device 100. The control module 910 is configured to determine operating status data of the energy storage system 10, which is associated with the second data.

[0249] The battery monitoring circuit may be a device for monitoring battery cells in the battery device 100. The second data collection of the battery device 100 by the battery monitoring circuit may refer to the battery monitoring circuit being able to collect voltage and temperature data of the battery cells in the battery device 100. This data is the basis for the battery management system to perform status monitoring and control.

[0250] The control module 910 may be a module in the energy storage system 10 for monitoring and managing the battery device 100, and may serve as a management unit for the battery device 100 in the energy storage system 10. The control module 910 may be communicatively connected to the battery monitoring circuit, and may receive and process second data to determine the operating status data of the energy storage system 10 using the second data. The control module 910 may monitor information such as the current, voltage, power, state of charge, or temperature of the energy storage system 10 to determine the operating status data of the energy storage system 10. As an example, the control module 910 includes modules such as an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), an Ethernet ETH (EtherNet, ETH), and a fiber optic conversion module.

[0251] The operating status data of the energy storage system 10 determined by the control module 910 is associated with the second data of the battery device 100 collected by the battery monitoring circuit, so that the control module 910 can control the battery device 100, which is beneficial to reducing the number of control modules 910 set up, achieving maximum utilization of the control modules 910, and helping to reduce the cost of the energy storage system 10.

[0252] Please refer to Figure 15 In some embodiments, the energy storage system 10 further includes a sub-control module 920 , which is communicatively connected between the battery monitoring circuit and the control module 910 .

[0253] The sub-control module 920 serves as the battery management unit (BMU) for a battery cluster consisting of multiple battery devices 100, monitoring and managing the battery cluster. The sub-control module 920 can monitor information such as the battery cluster's current, voltage, power, and temperature. For example, it can control the battery cluster's charge and discharge current and voltage. The sub-control module 920 may include modules such as a slave battery management unit (SBMU) and a fusion switch.

[0254] In some embodiments, the sub-control module 920 is configured to forward the second data. For example, the sub-control module 920 can forward information such as the current, voltage, power, state of charge, or temperature of the battery device 100 to the control module 910 .

[0255] In other embodiments, the sub-control module 920 is configured to obtain and process the second data and transmit the processed data to the control module 910. For example, the sub-control module 920 may process information such as the current, voltage, power, state of charge, or temperature of the battery device 100 and then forward it to the control module 910.

[0256] By providing a sub-control module 920 between the battery monitoring circuit and the control module 910, the control system of the energy storage system 10 has a three-level framework, which reduces the length and complexity of the communication wiring harness, reduces sampling errors, and is conducive to improving system reliability. It also reduces the requirements for the processor and communication bus, which is conducive to reducing the overall cost of the system.

[0257] Please refer to Figure 16 , Figure 16 Schematic diagram of the framework of the control system in the energy storage system 10 provided in some other embodiments of the present application. In some other embodiments, the battery monitoring circuit is directly connected to the control module 910 for communication.

[0258] By directly communicating with the battery monitoring circuit and the control module 910, the energy storage system 10 has a two-level framework, enabling the control module 910 to monitor key parameters such as the voltage, current, and temperature of the battery cells in the battery device 100 in real time. This helps ensure that the battery cells of the battery device 100 operate in a safe state, reduces the possibility of overcharging, overdischarging, and short circuiting, and helps improve the reliability of the energy storage system 10.

[0259] In some embodiments, the control module 910 is housed within a housing 210 .

[0260] There is only one control module 910 , which can be accommodated in a warehouse body 210 . The warehouse body 210 can protect the control module 910 and reduce the risk of damage to the control module 910 .

[0261] Please refer to Figure 17 , Figure 17 This is a schematic block diagram of a firefighting method 20 provided in some embodiments of the present application. The present application also provides a firefighting method 20, which is based on the above-mentioned energy storage system 10. The firefighting method 20 includes:

[0262] Exhaust step S100: exhausting the gas in the silo 210 where thermal runaway occurs;

[0263] Firefighting step S200: providing the firefighting medium stored in the medium storage 310 to the warehouse 210 where thermal runaway occurs.

[0264] The "storage body 210 experiencing thermal runaway" is the storage body 210 whose first data is greater than the first threshold. When the first data in the storage body 210 is greater than the first threshold, it is considered that a battery device 100 in the storage body 210 has experienced thermal runaway.

[0265] In the exhaust step S100 , the fire host 330 activates the exhaust mechanism 350 to exhaust the gas in the warehouse 210 where thermal runaway occurs.

[0266] In the firefighting step S200 , the firefighting host 330 opens the first shutoff device 420 and the second shutoff device 430 , so that the firefighting medium stored in the medium storage 310 is supplied to the warehouse body 210 that has thermal runaway.

[0267] It should be noted that the exhaust step S100 can be performed before the fire-fighting step S200, the exhaust step S100 can be performed simultaneously with the fire-fighting step S200, or the exhaust step S100 can be performed after the fire-fighting step S200.

[0268] Please refer to Figure 18 , Figure 18 This is a schematic block diagram of a firefighting method 20 provided in some other embodiments of the present application. In some other embodiments, after the exhaust step S100 and the firefighting step S200, the firefighting method 20 further includes:

[0269] Maintaining step S300: maintaining the volume concentration of the firefighting medium in the silo 210 where thermal runaway occurs above a third threshold value for a first preset time.

[0270] Since the warehouse body 210 is not completely sealed, the fire-fighting medium in the warehouse body 210 will leak outward. Therefore, in the maintenance step S300, the fire-fighting host 330 will open and close the first intercepting device 420, the second intercepting device 430, and the exhaust mechanism 350 according to the detection result of the concentration sensor 360, so as to keep the volume concentration of the fire-fighting medium in the warehouse body 210 above the third threshold value for a first preset time.

[0271] By maintaining the concentration of the fire-fighting medium in the bin 210 above the third threshold value for the first preset time, a better fire-fighting effect is achieved, which is beneficial to reducing the risk of secondary thermal runaway and improving the reliability of the energy storage system 10.

[0272] Please refer to Figure 19 , Figure 19 This is a schematic block diagram of a firefighting method 20 provided in some further embodiments of the present application. In some further embodiments, the firefighting method 20 further includes:

[0273] Early warning step S50: When the first data in the warehouse body 210 is greater than the first threshold, an early warning signal is issued and lasts for a second preset time. After the second preset time, the exhaust step and the fire fighting step are executed.

[0274] In the early warning step S50, the fire host 330 activates the alarm 370 when the first data exceeds the first threshold. The alarm 370 issues an early warning signal for a second preset time. After the second preset time, the fire host 330 opens the first shutoff device 420, the second shutoff device 430, and the exhaust mechanism 350 corresponding to the fire sensor 340.

[0275] When the fire-fighting method 20 is executed, the early warning step S50 is executed first, then the exhaust step S100 and the fire-fighting step S200 are executed, and finally the maintenance step S300 is executed.

[0276] If the first data exceeds the first threshold, it indicates that a battery device 100 within the compartment 210 has experienced thermal runaway. At this point, the fire host 330 activates the alarm 370, prompting nearby personnel to evacuate. After a second preset time, the exhaust and firefighting steps are executed, thereby reducing the risk of nearby personnel being exposed to the firefighting medium and injuring them.

[0277] In some embodiments, in the firefighting step S200, when the first data in the silo 210 is greater than a second threshold, the firefighting medium stored in the medium storage 310 is supplied to the silo 210 experiencing thermal runaway and to silos 210 adjacent to the silo 210 experiencing thermal runaway. The second threshold is greater than the first threshold.

[0278] In the firefighting step S200, the fire host 330 is further configured to open the first shutoff device 420 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located, and the exhaust mechanism 350 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located, when the first data is greater than a second threshold. For example, if the compartment 210 where the fire sensor 340 is located is the first compartment, and the compartment 210 adjacent to the first compartment is the second compartment, and the first data in the first compartment is greater than the second threshold, the fire host 330 is required to open not only the first shutoff device 420 on the first pipe 321 connected to the first compartment and the exhaust mechanism 350 provided in the first compartment, but also the first shutoff device 420 on the first pipe 321 connected to the second compartment and the exhaust mechanism 350 provided in the second compartment.

[0279] When the first data is greater than the second data, it indicates that the thermal runaway of the battery device 100 in the compartment 210 where the fire sensor 340 is installed is already quite serious. The firefighting medium stored in the medium storage device 310 is provided to the compartment 210 where the thermal runaway occurs and the compartment 210 adjacent to the compartment 210 where the thermal runaway occurs, thereby reducing the risk of the thermal runaway of the compartment 210 spreading to the adjacent compartments 210, which is beneficial to improving the reliability of the energy storage system 10.

[0280] According to some embodiments of this application, please refer to Figures 1 to 19 .

[0281] An embodiment of the present application provides an energy storage system 10, comprising a battery device 100, multiple silo groups 200, and a firefighting device 300. Each silo group 200 comprises a silo 210 or multiple silo groups 210 stacked in a vertical direction, each silo 210 containing a battery device 100. The firefighting device 300 comprises a medium reservoir 310 and a piping system 320. The multiple silo groups 200 are arranged around the medium reservoir 310. The piping system 320 connects the medium reservoir 310 and all the silo groups 210. The medium reservoir 310 is configured to supply the stored firefighting medium to the silo 210. The energy storage system 10 comprises multiple silo groups 200. When each silo group 200 comprises a silo 210, and each silo 210 contains a battery device 100, the capacity of the energy storage system 10 is increased. When each silo group 200 includes multiple silos 210 stacked in a height direction, with each silo 210 housing a battery device 100, this not only helps increase the capacity of the energy storage system 10, but also helps increase the areal energy density of the energy storage system 10. The multiple silo groups 200 are arranged around the medium reservoir 310, ensuring that the lengths of the pipelines from the medium reservoir 310 to each silo group 200 are approximately the same, resulting in approximately the same flow resistance of the firefighting medium to each silo group 200. This helps ensure that the flow rate of the firefighting medium provided by the medium reservoir 310 to the multiple silo groups 200 is approximately the same, ensuring that each silo group 200 has a good firefighting capability, and improving the reliability of the energy storage system 10.

[0282] The energy storage system 10 includes four silo groups 200, which are arranged in two rows and two columns. The two silo groups 200 in each row are arranged along a first direction, and the two silo groups 200 in each column are arranged along a second direction. Along the first direction, a first channel 220 is defined between the two silo groups 200 in each row, and a first channel 220 is provided on both sides of the medium storage 310 along the second direction. Along the second direction, a second channel 230 is defined between the two silo groups 200 in each column, and a second channel 230 is provided on both sides of the medium storage 310 along the first direction. When the energy storage system 10 includes four silo groups 200, the four silo groups 200 are arranged in two rows and two columns. This creates a rectangular projection along the height direction of the energy storage system 10, which is more square and can reduce space waste when installing multiple energy storage systems 10, thereby improving land utilization. The medium reservoir 310 is provided with a second channel 230 on both sides along the first direction, and a first channel 220 on both sides along the second direction. This allows the medium reservoir 310 to be positioned approximately in the middle of the four silo groups 200, ensuring that the length of the pipeline from the medium reservoir 310 to each silo group 200 is approximately the same, and that the flow resistance of the firefighting medium to each silo group 200 is approximately the same. This facilitates ensuring that the flow rate of firefighting medium provided by the medium reservoir 310 to the multiple silo groups 200 is approximately the same, thus ensuring that each silo group 200 has a good firefighting capability and improving the reliability of the energy storage system 10. Furthermore, the first channel 220 and the second channel 230 can serve as isolation channels, preventing a fire in a silo group 200 experiencing thermal runaway from spreading to another silo group 200. Furthermore, the first channel 220 and the second channel 230 can serve as maintenance accesses, facilitating maintenance of the silo groups 200.

[0283] The piping system 320 includes multiple first tubes 321, one of which is connected to each silo 210, and each first tube 321 is connected to the medium reservoir 310. A throttling structure 410 is provided on at least one of the first tubes 321. By providing the throttling structure 410 on the first tube 321, the throttling structure 410 can regulate the flow rate of the firefighting medium supplied from the medium reservoir 310 to the silo 210 corresponding to the first tube 321. This helps ensure that the flow rate of the firefighting medium provided by the medium reservoir 310 to the multiple silos 210 is roughly the same, thus ensuring that the multiple silos 210 have better firefighting capabilities and improving the reliability of the energy storage system 10.

[0284] Each first tube 321 is provided with a first shutoff device 420. A throttling structure 410 is located downstream of the first shutoff device 420 along the flow direction of the firefighting medium within the first tube 321. This placement of the throttling structure 410 downstream of the first shutoff device 420 allows the throttling structure 410 to balance the flow rate effects of the first shutoff device when regulating the flow rate. This helps ensure that the flow rate of firefighting medium provided by the medium reservoir 310 to the multiple silos 210 is roughly uniform, ensuring that each silo 210 has a good firefighting capability and improving the reliability of the energy storage system 10.

[0285] The firefighting device 300 includes a firefighting main unit 330 and multiple firefighting sensors 340, one of which is located within each compartment 210. The multiple firefighting sensors 340 and the first shutoff device 420 are all in communication with the firefighting main unit 330. The firefighting sensors 340 are used to obtain first data from the compartment 210, and the firefighting main unit 330 is used to activate the first shutoff device 420 corresponding to the firefighting sensor 340 based on the first data. The presence of a firefighting sensor 340 in each compartment 210 improves the accuracy and timeliness of detecting whether a battery device 100 within each compartment 210 has experienced thermal runaway. The multiple firefighting sensors 340 and the multiple first shutoff devices 420 are all in communication with the firefighting main unit 330. This allows firefighting control of multiple compartments 210 to be achieved through a single firefighting main unit 330, which helps reduce the volume occupied by the firefighting main unit 330, improves the energy density of the energy storage system 10, and reduces the cost of the firefighting device 300. On the other hand, the fire host 330 can automatically control the opening of the first intercepting device 420 according to the first data of the fire sensor 340, which is conducive to improving the degree of automation and the timeliness of fire fighting, thereby helping to improve the reliability of the energy storage system 10.

[0286] The fire control unit 330 is configured to open the first shutoff device 420 corresponding to the fire sensor 340 when the first data exceeds a first threshold, and to open the first shutoff device 420 corresponding to the compartment 210 adjacent to the compartment 210 where the fire sensor 340 is located when the first data exceeds a second threshold, where the second threshold is greater than the first threshold. When the first data exceeds the first threshold, it indicates that a battery device 100 in the compartment 210 where the fire sensor 340 is located has experienced thermal runaway. The fire control unit 330 controls the opening of the first shutoff device 420 on the first pipe 321 connected to the compartment 210, thereby supplying firefighting medium into the compartment 210, thereby achieving a targeted supply of firefighting medium and suppressing further development of thermal runaway. When the first data is greater than the second data, it indicates that the thermal runaway of the battery device 100 in the compartment 210 where the fire sensor 340 is installed is already quite serious. The fire host 330 controls the first shut-off device 420 on the first tube 321 connected to the compartment 210 adjacent to the compartment 210 to open, thereby providing fire-fighting medium into the compartment 210 adjacent to the compartment 210, reducing the risk of the thermal runaway of the compartment 210 spreading to the adjacent compartment 210, which is beneficial to improving the reliability of the energy storage system 10.

[0287] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An energy storage system, characterized in that: include: Battery device; Multiple warehouse groups, each of the warehouse groups includes one warehouse or multiple warehouses stacked in the height direction, the warehouses are containers, and the battery device is installed in each warehouse; A fire-fighting device comprising a medium storage device and a piping system, wherein a plurality of said storage body groups are arranged around said medium storage device, said piping system connects said medium storage device and all said storage bodies, and said medium storage device is configured to supply said storage body with said fire-fighting medium; The piping system includes a plurality of first pipe bodies, each of the silo bodies is connected to one of the first pipe bodies, and each of the first pipe bodies is connected to the medium reservoir. The first pipe body includes a pipe body and a gradient section, and the gradient section includes a first end and a second end. The pipe body connects the medium reservoir and the first end, and the second end is connected to the silo body. The area of ​​the flow cross section of the gradient section gradually increases in the direction from the first end to the second end.

2. The energy storage system according to claim 1, characterized in that: The energy storage system includes four bin groups, which are arranged in two rows and two columns, with two bin groups in each row arranged along a first direction and two bin groups in each column arranged along a second direction; Along the first direction, a first channel is provided between the two bin groups in each row, and the first channel is provided on both sides of the medium storage along the second direction; Along the second direction, a second channel is provided between the two bin groups in each column, and the second channel is provided on both sides of the medium storage along the first direction.

3. The energy storage system according to claim 1, characterized in that: At least one of the first tubes is provided with a throttling structure.

4. The energy storage system according to claim 1, characterized in that: Each of the first tubes is provided with a first flow-cutting device.

5. The energy storage system according to claim 4, characterized in that: At least one of the first pipe bodies is provided with a throttling structure, and along the flow direction of the fire-fighting medium in the first pipe body, the throttling structure is located downstream of the first shut-off device.

6. The energy storage system according to claim 4, characterized in that: The fire-fighting device includes a fire-fighting host and a plurality of fire-fighting sensors, and each of the compartments is provided with the fire-fighting sensor; The plurality of fire sensors and the first intercepting device are all communicatively connected to the fire host. The fire sensor is used to obtain the first data in the warehouse, and the fire host is used to open the first intercepting device corresponding to the fire sensor according to the first data.

7. The energy storage system according to claim 6, characterized in that: The fire host is used to open the first interception device corresponding to the fire sensor when the first data is greater than a first threshold, and to open the first interception device corresponding to the warehouse adjacent to the warehouse where the fire sensor is located when the first data is greater than a second threshold, and the second threshold is greater than the first threshold.

8. The energy storage system according to claim 6, characterized in that: The fire sensor includes at least one of a temperature sensor, a smoke detector, and a combustible gas detector.

9. The energy storage system according to claim 6, characterized in that: The medium reservoir is provided with a second cut-off device, which is communicatively connected to the fire host. The fire host is used to open the second cut-off device according to the first data. The medium reservoir is used to provide the fire-fighting medium to the plurality of first pipes when the second cut-off device is opened.

10. The energy storage system according to claim 6, characterized in that: The warehouse body is provided with an exhaust port, and the fire-fighting device includes an exhaust mechanism, which is provided corresponding to the exhaust port. The exhaust mechanism is communicatively connected to the fire-fighting host, and the fire-fighting host is used to open the exhaust mechanism corresponding to the fire-fighting sensor according to the first data.

11. The energy storage system according to claim 10, characterized in that: The fire-fighting device includes a concentration sensor, which is used to detect the concentration of the fire-fighting medium in the warehouse. The concentration sensor is communicatively connected to the fire-fighting host, and the fire-fighting host is used to close the exhaust mechanism and the first intercepting device when the concentration reaches a third threshold.

12. The energy storage system according to claim 10, characterized in that: Along the height direction of the silo body, the position of the air outlet is higher than the connection position of the first tube body and the silo body.

13. The energy storage system according to claim 10, characterized in that: The warehouse body includes two wall portions arranged opposite to each other, the first tube body is connected to one of the wall portions, and the air outlet is arranged on the other wall portion.

14. The energy storage system according to claim 6, characterized in that: The fire-fighting device includes an alarm, which is communicatively connected to the fire-fighting host. The fire-fighting host is used to activate the alarm according to the first data.

15. The energy storage system according to claim 14, characterized in that: The fire host is used to activate the alarm when the first data is greater than a first threshold, and delay opening the first interception device corresponding to the fire sensor, and open the first interception device corresponding to the warehouse adjacent to the warehouse where the fire sensor is located when the first data is greater than a second threshold, and the second threshold is greater than the first threshold.

16. The energy storage system according to claim 1, characterized in that: The inner circumference of the gradient section intersects with the first section to form an intersection line, the first section passes through the central axis of the gradient section, and the angle between the intersection line and the central axis is α, which satisfies: 15°≤α≤25°.

17. The energy storage system according to claim 16, characterized in that: The tube body is detachably connected to the gradient section; Alternatively, the tube body and the gradient section are formed integrally.

18. The energy storage system according to claim 1, characterized in that: The pipeline system includes a main pipe connecting the medium reservoir and the plurality of first pipes.

19. The energy storage system according to claim 18, characterized in that: The main pipe is provided with an overflow valve.

20. The energy storage system according to claim 18, characterized in that: The first pipe body and the main pipe are detachably connected.

21. The energy storage system according to any one of claims 1 to 20, characterized in that: The fire-fighting medium includes at least one of carbon dioxide, nitrogen, helium, neon, argon, krypton, xenon, and radon.

22. The energy storage system according to any one of claims 1 to 20, characterized in that: The warehouse body group includes a plurality of warehouse bodies stacked along a height direction, and dimensions of the plurality of warehouse bodies in the warehouse body group along the height direction are all smaller than dimensions of a standard container along the height direction.

23. The energy storage system according to claim 22, characterized in that: The dimensions of the multiple warehouse bodies of the warehouse body group along the length direction are consistent with the dimensions of the standard container along the length direction, and the dimensions of the multiple warehouse bodies of the warehouse body group along the width direction are consistent with the dimensions of the standard container along the width direction.

24. A fire-fighting method, characterized in that: Based on the energy storage system according to any one of claims 1 to 23, the fire fighting method includes: Exhaust step: exhausting the gas in the silo that has thermal runaway; Firefighting step: providing the firefighting medium stored in the medium storage device to the warehouse where thermal runaway occurs.

25. The firefighting method according to claim 24, characterized in that: After the exhaust step and the fire-fighting step, the fire-fighting method further includes: Maintaining step: maintaining the volume concentration of the fire-fighting medium in the silo where thermal runaway occurs above a third threshold value for a first preset time.

26. The firefighting method according to claim 25, characterized in that: The fire-fighting method further comprises: Early warning step: when the first data in the warehouse is greater than a first threshold, an early warning signal is issued and lasts for a second preset time. After the second preset time, the exhaust step and the fire fighting step are executed.

27. The firefighting method according to claim 26, characterized in that: In the fire-fighting step, when the first data in the warehouse is greater than a second threshold, the fire-fighting medium stored in the medium storage is provided to the warehouse where thermal runaway occurs and the warehouse adjacent to the warehouse where thermal runaway occurs, and the second threshold is greater than the first threshold.

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