Smoke suppression device and battery fire suppression system thereof

Abstract

The present application relates to a kind of smoke suppression device and its battery fire extinguishing system, smoke suppression device includes exhaust device and booster device, one end of exhaust device is provided with smoke inlet, its other end is provided with smoke outlet, smoke inlet and smoke outlet are provided with the smoke flow channel between the communication of both, exhaust device also includes inhibitor outlet, inhibitor outlet is communicated with smoke outlet;The low-pressure end of booster device is provided with inhibitor inlet, its high-pressure end is provided with inhibitor outlet, inhibitor outlet and inhibitor outlet are provided with the inhibitor flow channel between the communication;Impeller is provided in the smoke flow channel of exhaust device, pump driving element is provided in booster device, impeller and pump driving element synchronous motion.Battery fire extinguishing device includes the smoke suppression device described above, explosion-proof valve and inhibitor source, inhibitor source is communicated with the inhibitor inlet of smoke suppression device, the smoke inlet of smoke suppression device is communicated with battery pack, the smoke outlet of smoke suppression device is communicated with explosion-proof valve.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to smoke suppression devices and their battery-powered fire-fighting systems. Background Technology

[0002] With the increasing popularity of new energy vehicles, the production of battery packs, a core component of these vehicles, is also growing, and the safety of battery packs is receiving more and more attention. When a lithium battery experiences thermal runaway, it emits a large amount of high-temperature flammable gas and high-temperature particulate matter. This high-temperature gas, containing both gaseous and solid particles, rapidly increases the internal gas pressure within the battery storage unit / compartment / battery pack. When the pressure exceeds the pressure-bearing capacity of the battery storage unit / compartment / battery pack shell structure, it will rupture and release these gases. When these gases mix with air, they are highly susceptible to jet combustion, flashover, or even explosion.

[0003] To prevent the aforementioned situations, existing technology installs explosion-proof valves on the battery pack casing. When the internal pressure of the battery pack increases and exceeds the preset pressure limit of the explosion-proof valve, the switching component on the valve is activated, connecting the inside and outside of the battery pack and rapidly releasing high-pressure gas from within, protecting the casing from damage. However, in reality, even if the explosion-proof valve functions normally and the thermal runaway fumes escape smoothly, the lack of cooling and fire suppression for these fumes can still cause the battery pack to spew flames outward from the explosion-proof valve, releasing the thermal runaway fumes and potentially causing explosions or jet fires. Furthermore, because the outward-spraying thermal runaway fumes are high-velocity and high-pressure, fire suppression devices struggle to effectively cool and suppress the explosion from the outside. Since the source of the jet fire originates inside the battery pack, external fire suppression methods are ineffective in addressing the problem. Therefore, some existing solutions directly integrate fire suppression systems into the battery pack. However, these integrated systems can only extinguish open flames inside the battery pack; they do not effectively suppress the thermal runaway fumes emitted externally. Therefore, there is an urgent need in the market for a relatively simple solution that can cool, retard, and suppress the explosion of thermal runaway fumes. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention proposes a smoke suppression device and its battery fire suppression system. When the battery pack experiences thermal runaway and ejects high-temperature flammable gas, the smoke suppression device can automatically input inhibitors into the injection point of the battery pack to control the thermal runaway ejected smoke without the need for other power sources.

[0005] The technical solution of the present invention is described in detail below:

[0006] On one hand, the present invention protects a flue gas suppression device, including a smoke exhaust device and a pressurization device. The smoke exhaust device has a flue gas inlet at one end and a flue gas outlet at the other end, and a flue gas flow channel connecting the flue gas inlet and the flue gas outlet is provided. The smoke exhaust device also includes an inhibitor spray outlet, which is connected to the flue gas outlet. The pressurization device has an inhibitor inlet at its low-pressure end and an inhibitor outlet at its high-pressure end, and an inhibitor flow channel connecting the inhibitor spray outlet and the inhibitor outlet is provided. An impeller is provided in the flue gas flow channel of the smoke exhaust device, and a pump drive is provided in the pressurization device. The impeller and the pump drive move synchronously.

[0007] In one embodiment, the exhaust device includes a volute, the flue gas inlet is located tangentially to the impeller, and the flue gas outlet is located on one axial side of the impeller.

[0008] In one embodiment, the smoke exhaust device includes a closed cavity, the impeller is disposed in the closed cavity, the smoke inlet and the smoke outlet are located on the closed cavity, and the smoke inlet and the smoke outlet are disposed in the tangential direction of the impeller.

[0009] In one embodiment, the pump drive is an internal gear pump, an external gear pump, a screw pump, a cam pump, a flexible impeller pump, a vane pump, or a rotary piston pump.

[0010] In one embodiment, the smoke exhaust device and the booster device are respectively provided with bearings, and a booster shaft is provided between the impeller and the pump drive. The booster shaft passes through the bearing, one end of the booster shaft is fixed to the impeller, and the other end is fixed to the pump drive.

[0011] In one embodiment, the pressurizing device further includes a pressurizing device housing, and the smoke exhaust device further includes a smoke exhaust device housing, wherein the pressurizing device housing and the smoke exhaust device housing are integrally formed.

[0012] In one embodiment, the inhibitor spray outlet is located on the flue gas outlet.

[0013] In one embodiment, the inhibitor outlet is provided with an atomizing nozzle.

[0014] In one embodiment, a heat insulation structure is provided between the smoke exhaust device and the pressurization device.

[0015] On the other hand, the present invention protects a battery fire suppression system, including any of the smoke suppression devices, explosion-proof valves and inhibitor sources described above, wherein the inhibitor source is connected to the inhibitor inlet of the smoke suppression device, the smoke inlet of the smoke suppression device is connected to the battery pack, and the smoke outlet of the smoke suppression device is connected to the explosion-proof valve.

[0016] Beneficial effects

[0017] In summary, the flue gas suppression device of this invention effectively utilizes the powerful force of thermal runaway flue gas through the synchronous movement of the impeller and the pump drive component. This allows the inhibitor to be delivered at a high pressure in a self-driven manner, and to be fully mixed before the thermal runaway flue gas is ejected. This results in cooling, flame retardancy, explosion suppression, and prevention of thermal diffusion of the thermal runaway flue gas, greatly reducing the possibility of jet fire and explosion caused by the ejection of high-temperature and high-pressure flue gas during battery pack thermal runaway.

[0018] The smoke suppression device of the present invention has a simple structure and is easy to manufacture. Furthermore, due to its reasonable structural design and advanced design concept, the smoke suppression device of the present invention can automatically and effectively control the thermal runaway smoke of the battery pack without the need for additional pressurization devices, sensing devices, or starting devices, thus achieving a very good fire protection effect.

[0019] The battery fire suppression system of the present invention, by using the smoke suppression device, significantly reduces the hazard of thermal runaway smoke when it is ejected from the explosion-proof valve. It achieves cooling, flame retardancy, and explosion suppression of thermal runaway smoke in a relatively simple way, and is worthy of promotion. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a flue gas suppression device according to one embodiment of the present invention;

[0021] Figure 2 This is a top view of a flue gas suppression device according to one embodiment of the present invention;

[0022] Figure 3 This is an open view of the smoke exhaust device of a smoke suppression device according to one embodiment of the present invention;

[0023] Figure 4 This is an open view of the pressurization device of a flue gas suppression device according to one embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the drive wheel and pump drive component of a flue gas suppression device according to one embodiment of the present invention;

[0025] In this designation, 1 is the smoke exhaust device, 2 is the booster device, 3 is the booster shaft, 11 is the flue gas inlet, 12 is the flue gas outlet, 13 is the inhibitor injection outlet, 14 is the impeller, 21 is the inhibitor outlet, 22 is the inhibitor inlet, and 23 is the pump drive component. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] See Figure 1 , Figure 1 The flue gas suppression device of the present invention is shown. Figure 2 for Figure 1 A top view of the flue gas suppression device described in the figure, from Figure 2 As can be seen, the smoke suppression device includes a smoke exhaust device 1 and a pressurization device 2. The smoke exhaust device 1 has a smoke inlet 11 connected to the battery pack at one end and a smoke outlet 12 at the other end. A smoke flow channel connecting the smoke inlet 11 and the smoke outlet 12 is provided. The smoke exhaust device 1 also includes an inhibitor spray outlet 13, which is connected to the smoke outlet 12. The pressurization device 2 includes a low-pressure end and a high-pressure end. The low-pressure end has an inhibitor inlet 22, and the high-pressure end has an inhibitor outlet 21. The inhibitor inlet 22 is connected to an inhibitor source, and a connected inhibitor flow channel is provided between the inhibitor spray outlet 13 and the inhibitor outlet 21. Figure 3 As shown, an impeller 14 is installed in the flue gas flow channel of the exhaust device 1, such as... Figure 4 As shown, the booster device 2 is equipped with a pump drive component 23, and the impeller 14 moves synchronously with the pump drive component 23.

[0033] As analyzed in the previous section on existing technologies, existing flue gas suppression devices can only address either the external or internal conditions of the battery pack, lacking any control over the thermal runaway flue gas emitted from the battery pack's outlet, posing a significant safety hazard. In contrast, the flue gas suppression device of this application, when the battery pack experiences thermal runaway, generates a large amount of high-temperature, high-pressure flue gas inside the battery pack, which enters the exhaust device 1 through the flue gas inlet 11. Due to the pressure difference between the inside and outside of the battery pack, the thermal runaway flue gas flows rapidly through the flue gas channel and is discharged from the flue gas outlet 12. Simultaneously, the impeller 14 in the flue gas channel is driven to rotate by the thermal runaway flue gas, thereby driving the pump drive component 23 in the pressurization device 2 to move synchronously. Since the inhibitor inlet 22 of the pressurization device 2 is connected to the inhibitor source, the pressurization device 2 is filled with inhibitor. When the pump drive 23 starts to move, the pump drive 23 pressurizes the inhibitor in the pressurization device 2. The inhibitor is driven to be rapidly ejected from the inhibitor outlet 21 of the pressurization device 2 and enters the flue gas flow channel of the exhaust device 1 through the inhibitor spray outlet 13 connected to the inhibitor outlet 21. This allows the inhibitor to be fully mixed with the thermal runaway flue gas in the flue gas suppression device of this application, so that the thermal runaway flue gas is cooled and inertized before it is ejected from the flue gas suppression device. This greatly reduces the possibility of dangerous situations such as jet fire in the battery pack and effectively controls the thermal runaway flue gas.

[0034] Obviously, the flue gas inlet 11 and flue gas outlet 12 of the exhaust device 1 can be implemented in various ways. In one embodiment, the exhaust device 1 includes a volute, the flue gas inlet 11 is located tangentially to the impeller 14, and the flue gas outlet 12 is located on one axial side of the impeller 14. Alternatively, in another embodiment, such as... Figure 3 As shown, the smoke exhaust device 1 includes a closed cavity, and the impeller 14 is disposed in the closed cavity. The flue gas inlet 11 and the flue gas outlet 12 are located on the closed cavity, and the flue gas inlet 11 and the flue gas outlet 12 are arranged tangentially to the impeller 14. With the above arrangement, the flue gas flow channel between the flue gas inlet 11 and the flue gas outlet 12 surrounds the impeller 14. When thermal runaway flue gas rushes into the closed cavity of the smoke exhaust device 1 from the flue gas inlet 11, the impeller 14 can be pushed by the thermal runaway flue gas and rotate, thereby driving the pump drive component 23 of the booster device 2.

[0035] Understandably, the pump drive 23 should be capable of pressurizing the inhibitor. For example, in situations such as... Figure 4In the illustrated embodiment, the pump drive 23 is an internal gear pump. Specifically, the internal gear pump includes a pinion, an internal gear, and a crescent plate. The pinion meshes with the internal gear, and the pinion moves synchronously with the impeller 14. In this embodiment, when thermal runaway occurs in the battery pack, a large amount of thermal runaway ejected flue gas is generated inside the battery pack and enters the exhaust device 1 from the flue gas inlet 11. Since the impeller 14 can move synchronously with the pinion of the internal gear pump, when the thermal runaway ejected flue gas pushes the impeller 14, the pinion also rotates synchronously. Furthermore, based on the working nature of the internal gear pump, the pinion and internal gear mesh and rotate synchronously, naturally dividing the pressurization device 2 into a low-pressure zone and a high-pressure zone, where the pressure in the low-pressure zone is low and the pressure in the high-pressure zone is high. Therefore, the pressurization device 2 can continuously draw inhibitors from the inhibitor source through the inhibitor inlet 22 into the low-pressure zone, and through the action of the internal gear pump, pressurize the inhibitors in the high-pressure zone, causing them to be sprayed at high speed from the inhibitor outlet 21 towards the smoke exhaust device 1. In this way, without external driving force, the smoke suppression device of this application can automatically draw inhibitors from the inhibitor source into the pressurization device 2 and deliver them to the smoke exhaust device 1 to suppress the thermal runaway smoke emissions when thermal runaway occurs. In addition, similarly, the pump drive 23 can also be an external gear pump, screw pump, cam pump, flexible impeller pump, vane pump, rotary piston pump, etc.

[0036] It is worth noting that the synchronous movement relationship between the impeller 14 and the pump drive component 23 can be achieved in various ways. For example... Figure 5 In one embodiment shown, a booster shaft 3 is provided between the impeller 14 and the pump drive 23. One end of the booster shaft 3 is fixed to the impeller 14, and the other end is fixed to the pump drive 23. By providing the booster shaft 3, the impeller 14 transmits power to the pump drive 23 through the booster shaft 3, and the structure of the smoke suppression device can be made more compact, thereby saving valuable space in the battery pack area. Specifically, bearings are provided on the smoke exhaust device 1 and the booster device 2, and the booster shaft 3 is disposed through the bearings, thereby making the transmission between the impeller 14 and the pump drive 23 smoother.

[0037] Specifically, such as Figure 1 As shown, in this embodiment, the pressurization device 2 and the smoke exhaust device 1 are interconnected, thereby strengthening the overall structural strength of the smoke suppression device of the present invention to cope with the harsh working environment caused by battery pack thermal runaway. More preferably, the pressurization device 2 further includes a pressurization device housing, and the smoke exhaust device 1 also includes a smoke exhaust device housing, with the pressurization device housing and the smoke exhaust device housing integrally formed. With this configuration, the smoke suppression device of the present invention can further withstand higher intensity impact forces.

[0038] To improve the suppression effect on thermal runaway ejected flue gas, the preferred method is, for example... Figure 1-4 As shown, the inhibitor outlet 13 of the flue gas suppression device is located at the flue gas outlet 12. This arrangement prevents the inhibitor from entering the flue gas flow channel from the outlet 12 due to the high pressure of the thermal runaway flue gas, thus avoiding any impact on the rotation of the impeller 14. Furthermore, since the inhibitor outlet 13 is directly located at the flue gas outlet 12, the inhibitor can come into contact with and mix with the thermal runaway flue gas immediately, thereby suppressing the thermal runaway flue gas earlier and further reducing the possibility of a catastrophic accident involving the battery pack. Preferably, the inhibitor outlet 13 is equipped with an atomizing nozzle, allowing the inhibitor to mix with the thermal runaway flue gas in an atomized state, enhancing its cooling, flame-retardant, explosion-suppressing, and heat diffusion-preventing effects on the thermal runaway flue gas.

[0039] Specifically, the inhibitor outlet 13 and the inhibitor outlet 21 are connected by a pipe. Preferably, the inhibitor outlet 13 and the inhibitor outlet 21 are provided with a sealing structure, such as a sealing ring, to ensure the airtightness of the flue gas suppression device of the present invention, so that the inhibitor can be sprayed at a high rate toward the thermal runaway flue gas.

[0040] In one preferred embodiment, a heat insulation structure is provided between the exhaust device 1 and the pressurization device 2. Since the exhaust device 1 directly receives the very high-temperature thermal runaway exhaust gas when the battery pack experiences thermal runaway, its temperature will become extremely high. Therefore, it is necessary to provide a heat insulation structure to block the high temperature of the exhaust device 1, preventing the high temperature from being transferred to the pressurization device 2, and preventing the pump drive component 23 in the pressurization device 2 from malfunctioning due to heat, which would prevent the inhibitor from being properly delivered to the thermal runaway exhaust gas. Specifically, the heat insulation structure can be a heat insulation plate.

[0041] In summary, the smoke suppression device of this invention effectively utilizes the powerful force of thermal runaway smoke through the synchronous movement of the impeller and pump drive components. This allows the inhibitor to be delivered at high pressure in a self-driven manner, ensuring thorough mixing before the thermal runaway smoke is ejected. This effectively cools, flame-retards, suppresses explosions, and prevents thermal diffusion of the smoke, significantly reducing the possibility of jet fires and explosions caused by the high-temperature, high-pressure smoke ejected during battery pack thermal runaway. The smoke suppression device of this invention has a simple structure, is easy to manufacture, and due to its reasonable structural design and advanced design concept, it can automatically and effectively control the thermal runaway smoke from the battery pack without the need for additional pressurization, sensing, or starting devices, achieving excellent fire-fighting results.

[0042] Another aspect of the present invention claims a battery-powered fire suppression system comprising any of the smoke suppression devices, explosion-proof valves, and an inhibitor source described above, wherein the inhibitor source is connected to the inhibitor inlet of the smoke suppression device, the smoke inlet of the smoke suppression device is connected to the battery pack, and the smoke outlet of the smoke suppression device is connected to the explosion-proof valve.

[0043] In the battery fire suppression system of the present invention, when the battery pack experiences thermal runaway, thermal runaway fumes are rapidly generated inside the battery pack. Since the battery pack is connected to the fumes inlet of the fumes suppression device, and the internal pressure of the battery pack is greater than the pressure in the fumes suppression device, the thermal runaway fumes immediately enter the exhaust device of the fumes suppression device from the fumes inlet. The thermal runaway fumes flow in the fumes channel of the exhaust device, pushing the impeller during the flow. Because the impeller moves synchronously with the pump drive, the pump drive also begins to rotate, thereby activating the pressurization device. The pressurization operation is connected to the inhibitor source. When the pump drive rotates, a low-pressure zone and a high-pressure zone are formed within the pressurization device. The low-pressure zone continuously draws inhibitors from the inhibitor source into the pressurization device, while the high-pressure zone continuously transmits inhibitors at a higher pressure to the exhaust device, allowing the inhibitors to mix smoothly with the thermal runaway fumes, thus cooling, retardant, explosion-suppressing, and preventing thermal diffusion of the thermal runaway fumes. The mixed gas is ejected from the flue gas outlet and flows to the explosion-proof valve. When the gas pressure reaches the preset pressure value of the explosion-proof valve, the valve ruptures, and the mixed gas is ejected from the valve. However, due to the presence of the flue gas suppression device of this invention, the thermal runaway flue gas is controlled by the inhibitor. Therefore, the danger of the mixed gas ejecting from the explosion-proof valve is greatly reduced compared to existing technologies. This invention effectively achieves cooling, flame retardancy, and explosion suppression of thermal runaway flue gas in a relatively simple manner, and is worthy of widespread promotion.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A battery-powered fire suppression system, characterized in that, It includes a smoke suppression device, an explosion-proof valve, and an inhibitor source. The inhibitor source is connected to the inhibitor inlet of the smoke suppression device, the smoke inlet of the smoke suppression device is connected to a battery pack, and the smoke outlet of the smoke suppression device is connected to the explosion-proof valve. The flue gas suppression device includes a smoke exhaust device and a pressurization device. The smoke exhaust device has a smoke inlet at one end and a smoke outlet at the other end, with a smoke flow channel connecting the smoke inlet and the smoke outlet. The smoke exhaust device also includes an inhibitor spray outlet connected to the smoke outlet. The pressurization device has an inhibitor inlet at its low-pressure end and an inhibitor outlet at its high-pressure end, with an inhibitor flow channel connecting the inhibitor outlet and the inhibitor spray outlet. An impeller is installed in the smoke flow channel of the smoke exhaust device, and a pump drive is installed in the pressurization device. The impeller and the pump drive are coaxially arranged. The impeller is driven by high-temperature, high-pressure flue gas, and the impeller drives the pump drive to move synchronously. The exhaust device includes a volute, the flue gas inlet is located tangentially to the impeller, and the flue gas outlet is located on one side of the impeller's axial direction. Alternatively, the smoke exhaust device includes a closed cavity, the impeller is disposed in the closed cavity, the smoke inlet and the smoke outlet are located on the closed cavity, and the smoke inlet and the smoke outlet are disposed in the tangential direction of the impeller.

2. The battery-powered fire suppression system according to claim 1, characterized in that, The pump drive is an internal gear pump, an external gear pump, a screw pump, a cam pump, a flexible impeller pump, a vane pump, or a rotary piston pump.

3. The battery-powered fire suppression system according to claim 1, characterized in that, Bearings are respectively provided on the smoke exhaust device and the booster device. A booster shaft is provided between the impeller and the pump drive component. The booster shaft passes through the bearing. One end of the booster shaft is fixed to the impeller, and the other end is fixed to the pump drive component.

4. The battery-powered fire suppression system according to claim 1, characterized in that, The pressurizing device also includes a pressurizing device housing, and the smoke exhaust device also includes a smoke exhaust device housing, with the pressurizing device housing and the smoke exhaust device housing being integrated into one unit.

5. The battery-powered fire suppression system according to claim 1, characterized in that, The inhibitor injection outlet is located at the flue gas outlet.

6. The battery-powered fire suppression system according to claim 1, characterized in that, The inhibitor outlet is equipped with an atomizing nozzle.

7. The battery-powered fire suppression system according to claim 1, characterized in that, A heat insulation structure is provided between the smoke exhaust device and the pressurization device.

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