Fire fighting system and fire fighting method applied to energy storage system of new energy station

Abstract

The invention relates to the technical field of new energy station energy storage systems, and discloses a fire extinguishing system and fire extinguishing method applied to a new energy station energy storage system, and the fire extinguishing system comprises battery outlets which are formed in the first side and the second side of a battery cabin; the mechanical arm is arranged in the battery cabin and is positioned in the maintenance channel; the mechanical arms can push the batteries out of the battery cabins from the corresponding battery outlets; the fire extinguishing pools are arranged at the positions, close to the battery outlets, outside the battery cabin; the monitoring assembly is arranged in the battery cabin, and the monitoring assembly monitors whether a battery in the battery cabin is in thermal runaway or generates smoke or not; and the controller is electrically connected with the mechanical arm and the monitoring assembly. By arranging the mechanical arm and the monitoring assembly, the battery which is in thermal runaway or generates smoke can be monitored and pushed out of the battery cabin through the mechanical arm, and the situation that all batteries in the whole battery cabin are scrapped due to the fact that the faulted battery is evolved into spontaneous combustion due to thermal runaway and then ignites other batteries in the battery cabin is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy station energy storage systems, and in particular to a fire fighting system and a fire fighting method applied to new energy station energy storage systems. Background Art

[0002] A new energy station refers to the collection of all equipment below the grid connection point of a wind farm or solar power station that is centrally connected to the power system, including transformers, lines, converters, energy storage, wind turbines, photovoltaic power generation equipment, reactive power regulation equipment, and auxiliary equipment. Currently, the scale of installed new energy capacity continues to expand, and new energy generation technologies, represented by photovoltaic and wind power, are gradually replacing traditional fossil fuels. However, the intermittent and volatile nature of new energy generation makes it difficult to fully match it with grid demand. Therefore, deploying energy storage systems at new energy stations not only enables flexible power dispatch but also smooths power output fluctuations, improving the utilization efficiency of new energy stations and ensuring grid stability.

[0003] The energy storage systems used in new energy stations are primarily electrochemical, with lithium iron phosphate batteries becoming the mainstream choice due to their superior safety, long cycle life, and environmental performance. However, electrochemical energy storage systems present potential safety hazards during operation. For example, if a lithium iron phosphate battery experiences an internal fault, such as a short circuit, overcharge, or mechanical damage, it can cause thermal runaway, generating significant heat and potentially causing the battery to spontaneously combust. More seriously, the spontaneous combustion process releases large amounts of high-temperature flammable gases, particularly within a closed battery compartment. The accumulation of these gases can easily lead to deflagration or explosion, posing a serious threat to the safe operation of new energy stations.

[0004] In the existing technology, smoke sensors are installed to monitor in real time whether the batteries in the battery compartment are generating smoke due to thermal runaway. If the battery spontaneously combusts, the faulty battery is extinguished by a HFC-227ea gas fire extinguishing device. However, the existing fire-fighting technology is unable to deal with spontaneously combusting batteries in a timely manner, resulting in the faulty battery exploding in the compartment, igniting the remaining batteries in the battery compartment, and rendering all the batteries in the entire battery compartment scrapped. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a fire fighting system and fire fighting method applied to a new energy station energy storage system.

[0006] In a first aspect, the present invention provides a fire protection system for a new energy station energy storage system, wherein the energy storage system includes a battery compartment and a battery assembly arranged in the battery compartment, the battery assembly including two battery groups spaced apart along a first direction, and an inspection passage is provided between the two battery groups; the battery compartment includes a first side and a second side opposite to each other along the first direction, and the fire protection system includes: a battery outlet, wherein the first side and the second side of the battery compartment are both provided with a battery outlet; a robotic arm, wherein the robotic arm is arranged in the battery compartment and is located in the inspection passage; the robotic arm can push batteries that are in thermal runaway or produce smoke out of the battery compartment from the corresponding battery outlet; a fire extinguishing pool, wherein fire extinguishing pools are provided outside the battery compartment near the battery outlet, and batteries that are in thermal runaway or produce smoke leave the battery compartment from the corresponding battery outlet and fall into the corresponding fire extinguishing pool; a monitoring component, wherein the monitoring component is arranged in the battery compartment, and the monitoring component monitors whether the batteries in the battery compartment are in thermal runaway or produce smoke; and a controller, wherein the controller is electrically connected to the robotic arm and the monitoring component, respectively.

[0007] Optionally, the batteries are electrically connected via a detachable power cord.

[0008] By providing a detachable power cord, when a battery that is in thermal runaway or producing smoke is about to be pushed out of the battery compartment, the detachable power cord can be used to easily disconnect the remaining battery and the faulty battery, thus preventing the battery from failing due to the pulling of the non-detachable power cord.

[0009] Optionally, the detachable power cord includes power cord one and power cord two, one end of each of power cord one and power cord two is provided with a magnetic part one, power cord one and power cord two are magnetically connected through two magnetic parts one, and the ends of power cord one and power cord two that are away from each other are connected to corresponding batteries.

[0010] Optionally, a flip door is hinged at the battery outlet through a hinge shaft, and the flip door and the battery compartment are connected by a magnetic buckle.

[0011] By setting up a flip door, when the battery is not faulty, the flip door is in the closed state. Only when the faulty battery slides out of the battery compartment will the flip door be pushed open by the faulty battery. When the faulty battery slides out of the battery outlet, the flip door will automatically close. Closing the battery outlet by the flip door can prevent dust from entering the battery compartment.

[0012] Optionally, battery outlets are provided on the first side and the second side of the battery compartment at positions corresponding to the batteries, and a flip door is installed at each battery outlet.

[0013] Optionally, a slide rail is provided on the top wall of the battery compartment along a second direction, the second direction is perpendicular to the first direction, and the robotic arm is slidably mounted on the slide rail; a first telescopic member is mounted on the slide rail, and the output end of the first telescopic member is connected to the robotic arm to drive the robotic arm to move along the second direction on the slide rail.

[0014] Optionally, the robotic arm includes: a second telescopic member, which is slidably mounted on the slide rail, the second telescopic member is connected to the output end of the first telescopic member, and the second telescopic member is driven by the first telescopic member to slide along the second direction on the slide rail; a servo, which is mounted at the output end of the second telescopic member, and is driven by the second telescopic member to move in the up and down directions; a third telescopic member, which is mounted at the rotating end of the servo, and is driven by the servo to rotate in the horizontal direction; a push plate, which is mounted at the output end of the third telescopic member, and is driven by the third telescopic member to move along the first direction to push the battery that is in thermal runaway or produces smoke.

[0015] Optionally, the fire extinguishing pool contains a fire extinguishing agent, which is any one of a dry powder fire extinguishing agent, a carbon dioxide fire extinguishing agent, a hot aerosol fire extinguishing agent, a heptafluoropropane fire extinguishing agent and a dry ice fire extinguishing agent.

[0016] Optionally, the monitoring component includes a temperature sensor for monitoring the battery temperature, a smoke sensor for monitoring the smoke concentration, and an infrared thermal image acquisition device for acquiring infrared thermal images. The temperature sensor, smoke sensor and infrared thermal image acquisition device are all electrically connected to the controller.

[0017] Optionally, the positions where the batteries are set in the battery compartment are all provided with mounting surfaces, and each battery is installed on the corresponding mounting surface; the batteries of the battery assembly are respectively recorded as multiple battery ones close to the first side of the battery compartment, and multiple battery twos close to the second side of the battery compartment; the battery outlet opened on the first side of the battery compartment is recorded as battery outlet one, and the battery outlet opened on the second side of the battery compartment is recorded as battery outlet two; the mounting surface of battery one is arranged to lead to battery outlet one, and is inclined from high to low from the side where battery one is located to the side where battery outlet one is located; the mounting surface of battery two is arranged to lead to battery outlet two, and is inclined from high to low from the side where battery two is located to the side where battery outlet two is located.

[0018] By setting the mounting surface as an inclined surface, the robotic arm can push the faulty battery with less force and knock open the flip door.

[0019] In a second aspect, the present invention provides a firefighting method for a firefighting system of a new energy station energy storage system, comprising: The monitoring components monitor the batteries in the battery compartment in real time to obtain information on whether the batteries are experiencing thermal runaway or generating smoke; When the monitoring component detects thermal runaway or smoke generation in the battery, it transmits the information to the controller, which then controls the movement of the robotic arm. Under the control of the controller, the robotic arm moves to the battery that is experiencing thermal runaway or generating smoke, and uses the push plate of the robotic arm to push the battery that is experiencing thermal runaway or generating smoke out of the battery compartment through the corresponding battery outlet; Batteries that are in thermal runaway or producing smoke leave the battery compartment through the corresponding battery outlet and fall into the corresponding fire extinguishing pool for fire extinguishing.

[0020] The technical solution provided by the embodiment of the present invention has the following advantages compared with the existing technology: By setting up a monitoring component, it is possible to monitor batteries that are in thermal runaway or producing smoke, and by setting up a robotic arm, it is possible to push the batteries that are in thermal runaway or producing smoke out of the battery compartment from the corresponding battery outlet; the batteries in the battery compartment are monitored in real time by the monitoring component, and when the monitoring component detects that the batteries in the battery compartment are in thermal runaway or producing smoke, the controller controls the robotic arm to push out the batteries that are in thermal runaway or producing smoke in the battery compartment through the robotic arm; the fire protection system of the present invention can push the batteries that have not spontaneously combusted out of the battery compartment after the batteries have thermal runaway but before spontaneous combustion occurs, so as to avoid the faulty batteries evolving from thermal runaway to spontaneous combustion and igniting the remaining batteries in the battery compartment, causing all batteries in the entire battery compartment to be scrapped; therefore, the fire protection system of the present invention can effectively ensure the safety of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural diagram of a fire protection system applied to a new energy station energy storage system provided by an embodiment of the present invention.

[0022] Figure 2 This is a structural diagram of a monitoring component and a robotic arm provided in a battery compartment according to an embodiment of the present invention.

[0023] Figure 3 This is a structural diagram of a robot arm and a battery arranged in a battery compartment provided by an embodiment of the present invention.

[0024] Figure 4 This is a structural diagram of a battery installed in a battery compartment provided by an embodiment of the present invention.

[0025] Figure 5 This is a structural diagram of a flip door installed at a battery outlet provided by an embodiment of the present invention.

[0026] Figure 6 This is a structural schematic diagram of a detachable power cord provided by an embodiment of the present invention.

[0027] Figure 7 A schematic diagram of the flip door structure provided in an embodiment of the present invention.

[0028] Description of reference numerals: 1. Battery compartment; 2. Battery; 3. Battery outlet; 4. Robotic arm; 41. Slide rail; 42. First telescopic member; 43. Second telescopic member; 44. Servo; 45. Third telescopic member; 46. Push plate; 5. Controller; 6. Detachable power cord; 61. Power cord one; 62. Power cord two; 63. Magnetic member one; 7. Flip door; 71. Magnetic member; 8. Temperature sensor; 9. Smoke sensor; 10. External power grid; 11. Fire extinguishing pool. DETAILED DESCRIPTION

[0029] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] An embodiment of the present invention provides a fire protection system applied to a new energy station energy storage system. The system can push batteries that have not spontaneously combusted out of the battery compartment after thermal runaway occurs but before spontaneous combustion occurs, thereby preventing the faulty battery from spontaneously combusting due to thermal runaway and igniting the remaining batteries in the battery compartment, causing all batteries in the entire battery compartment to be scrapped.

[0032] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the present invention provides at least one fire protection system applied to a new energy station energy storage system. The energy storage system includes a battery compartment 1 and a battery assembly arranged in the battery compartment 1. The battery assembly includes two groups of battery packs spaced apart along a first direction, and there is an inspection channel between the two groups of battery packs; each group of battery packs includes a plurality of rows of batteries 2 spaced apart along the up and down directions, and each row of batteries 2 is a plurality of batteries spaced apart along the second direction, and the first direction and the second direction are perpendicular.

[0033] In this embodiment, the battery compartment 1 is in the shape of a rectangular parallelepiped as a whole, the first direction is the width direction of the battery compartment 1 , and the second direction is the length direction of the battery compartment 1 .

[0034] like Figure 6As shown, in this embodiment, the batteries 2 and the batteries 2 are connected to each other through a power cord, and the power cord is a detachable power cord 6. The detachable power cord 6 includes a power cord 1 61 and a power cord 2 62. One end of the power cord 1 61 and the power cord 2 62 is provided with a magnetic part 1 63 having magnetic properties. The power cord 1 61 and the power cord 2 62 are detachably magnetically connected through the two magnetic parts 1 63.

[0035] In this embodiment, the magnetic part 1 63 is a metal magnetic sheet, the power line 1 61 and the power line 2 62 are magnetically connected through two metal magnetic sheets and can conduct electricity, and the power line 1 61 and the power line 2 62 have no insulation layer at the metal magnetic sheets.

[0036] By providing a detachable power cord 6 , when the faulty battery 2 is pushed out of the battery compartment 1 by the robotic arm 4 , the battery 2 that is not faulty and the faulty battery 2 can be easily disconnected.

[0037] The fire protection system includes: a fire extinguishing pool 11, a robotic arm 4, a monitoring component and a controller 5; the battery compartment 1 includes a first side and a second side opposite to each other along a first direction.

[0038] A fire extinguishing pool 11 is provided outside the battery compartment 1 near the battery outlet 3 . Batteries 2 that are in thermal runaway or produce smoke leave the battery compartment 1 from the corresponding battery outlet 3 and fall into the corresponding fire extinguishing pool 11 .

[0039] like Figure 2 As shown, the fire extinguishing pool 11 is arranged outside the battery compartment 1 near the battery outlet 3. When the faulty battery 2 leaves the battery compartment 1, the faulty battery 2 will move in a parabolic trajectory, and the fire extinguishing pool 11 is located on the movement trajectory of the faulty battery 2, that is, the faulty battery 2 can fall directly into the fire extinguishing pool 11.

[0040] In this embodiment, two fire extinguishing pools 11 are provided outside the battery compartment 1. Fire extinguishing pools 11 contain a fire extinguishing agent, which is used to extinguish spontaneously combusting batteries 2. The fire extinguishing agent can be any one of dry powder, carbon dioxide, thermal aerosol, heptafluoropropane, and dry ice. In this embodiment, dry powder is used.

[0041] like Figure 4 and Figure 5 As shown, the battery outlet 3, the first side and the second side of the battery compartment 1, and the positions corresponding to the battery 2 are all opened with a battery outlet 3, and a flip door 7 is hinged at the battery outlet 3 through a hinge axis, and the flip door 7 and the battery compartment 1 are clamped by a magnetic buckle 71.

[0042] like Figure 5 and Figure 7As shown, the flip door 7 is used to close the battery outlet 3. It is in a closed state when the battery 2 is not faulty. The flip door 7 will be pushed open only when the faulty battery 2 slides out of the battery compartment 1. After the faulty battery 2 slides out of the battery outlet 3, the flip door 7 is automatically closed by gravity.

[0043] In this embodiment, the number of battery outlets 3 is the same as the number of batteries 2; in other embodiments, a general battery outlet 3 may be provided on the first side and the second side of the battery compartment 1 respectively, and if a faulty battery 2 occurs on one side, the battery 2 may leave the battery compartment 1 through the general battery outlet 3.

[0044] In this embodiment, the top of the flip door and the battery outlet 3 are hinged by a hinge, and the above-mentioned hinge axis is the hinge axis in the hinge; when the battery 2 pushed by the robotic arm 4 contacts the flip door 7, the weight of the battery 2 can push open the flip door 7 and fall into the fire extinguishing pool 11.

[0045] In this embodiment, the magnetic buckle is a whole of existing technology, including a magnetic male buckle and a female buckle, wherein the magnetic male buckle is arranged at the bottom end of the flip door 7, and the female buckle is arranged on the battery compartment 1. The magnetic male buckle and the female buckle achieve the purpose of closing and locking the door through the dual cooperation of snap connection and magnetic attraction.

[0046] The robotic arm 4 is arranged in the battery compartment 1 and is located in the maintenance passage; the robotic arm 4 can push the battery 2 that is in thermal runaway or produces smoke out of the battery compartment 1 through the corresponding battery outlet 3.

[0047] A slide rail 41 is provided on the top wall inside the battery compartment 1 along the second direction, and the robotic arm 4 is slidably installed on the slide rail 41; a first telescopic member 42 is installed on the slide rail 41, and the output end of the first telescopic member 42 is connected to the robotic arm 4 to drive the robotic arm 4 to move along the second direction on the slide rail 41.

[0048] The robotic arm 4 includes: a second telescopic member 43, which is slidably mounted on the slide rail 41, and the second telescopic member 43 is connected to the output end of the first telescopic member 42. The second telescopic member 43 is driven by the first telescopic member 42 and can slide along the second direction on the slide rail 41; a servo 44, which is mounted on the output end of the second telescopic member 43, and is driven by the second telescopic member 43 to move in the up and down directions; a third telescopic member 45, which is mounted on the rotating end of the servo 44, and is driven by the servo 44 to rotate in the horizontal direction; a push plate 46, which is mounted on the output end of the third telescopic member 45, and is driven by the third telescopic member 45 to move in the first direction to push the battery 2 that is in thermal runaway or produces smoke.

[0049] In this embodiment, the slide groove of the slide rail 41 faces the bottom wall of the battery compartment 1, and the bottom ends of the two side panels of the slide rail 41 in the longitudinal direction are folded inward to form a limit portion, which limits the installation end of the second telescopic member 43 in the slide rail 41; In this embodiment, the first telescopic member 42, the second telescopic member 43, and the third telescopic member 45 are all existing technologies and are electrically connected to the controller 5. They can be hydraulic cylinders, electric push rods, and other components with automatic telescopic functions. In this embodiment, electric push rods are used.

[0050] A monitoring component is provided in the battery compartment 1 to monitor whether the battery 2 in the battery compartment 1 is in thermal runaway or produces smoke; In this embodiment, the monitoring component includes a temperature sensor 8 for monitoring the battery temperature, a smoke sensor 9 for monitoring the smoke concentration, and an infrared thermal image acquisition device. The temperature sensor, smoke sensor, and infrared thermal image acquisition device are all electrically connected to the controller 5. In this embodiment, the infrared thermal image acquisition device is an infrared thermal imager. The infrared thermal imager is electrically connected to the controller 5 . The infrared thermal imager is used to acquire images inside the battery compartment 1 in real time.

[0051] The controller 5 is electrically connected to the robotic arm 4 and the monitoring component respectively. In this embodiment, the controller 5 is a PLC controller.

[0052] The positions where the batteries 2 are arranged in the battery compartment 1 are all provided with mounting surfaces, and each battery 2 is mounted on the corresponding mounting surface; the batteries 2 of the battery assembly are respectively recorded as multiple battery ones close to the first side of the battery compartment 1, and multiple battery twos close to the second side of the battery compartment 1; the battery outlet opened on the first side of the battery compartment 1 is recorded as battery outlet one, and the battery outlet opened on the second side of the battery compartment 1 is recorded as battery outlet two; the mounting surface for battery one leads to battery outlet one, and is inclined from high to low from the side where battery one is located to the side where battery outlet one is located; the mounting surface for battery two leads to battery outlet two, and is inclined from high to low from the side where battery two is located to the side where battery outlet two is located.

[0053] In this embodiment, the mounting surface is the upper surface of the mounting plate, and all batteries 2 are mounted on the corresponding mounting plate, and the mounting plate is fixed on the first side or the second side of the battery compartment 1; in order to prevent the faulty battery from being subjected to a large external force, the angle between the mounting surface of battery one and the plane where battery outlet one is located is set to 80-85°, and the angle between the mounting surface of battery two and the plane where battery outlet two is located is set to 80-85°, so that the faulty battery 2 can fall smoothly into the fire extinguishing pool 11.

[0054] The positions where the batteries 2 are arranged on the installation surface are all provided with chutes. The batteries 2 are installed on one side of the chutes, and the other side of the chutes leads to the battery outlet 3 .

[0055] In this embodiment, a slide groove is provided at the position where the battery 2 is set on the mounting plate, and the battery 2 can slide along the slide groove toward the battery outlet, ensuring that the faulty battery 2 can slide along the slide groove toward the battery outlet 3 when pushed by the robotic arm 4, thereby preventing the faulty battery from being unable to slide out of the battery compartment 1 due to deviation of the sliding trajectory.

[0056] Working principle: When the energy storage system is working, the temperature sensor 8 monitors the temperature of the battery 2 in the battery compartment 1 in real time, and the smoke sensor 9 monitors the smoke concentration in the battery compartment 1 in real time; the infrared thermal imager is used to collect images in the battery compartment 1 in real time and transmit them to the controller 5; when the monitoring values ​​of the temperature sensor 8 and / or the smoke sensor 9 are greater than the preset values, it indicates that a battery 2 has thermal runaway and / or produces smoke.

[0057] The image transmitted back by the infrared thermal imager is processed by the controller 5, such as pre-processing such as noise reduction and contrast enhancement, to improve the image quality; then, based on the characteristic of abnormal temperature rise of the thermal runaway battery, the high-temperature area is extracted from the image, and the temperature distribution, change rate and other characteristics are analyzed; when the temperature and temperature rise rate exceed the preset threshold, it can be determined as thermal runaway; in addition, the extracted features can be compared with the pre-stored thermal runaway battery infrared image features through machine learning or deep learning algorithms to further confirm whether thermal runaway occurs, so as to reduce misjudgment and thereby confirm the thermal runaway battery 2.

[0058] After confirming the thermal runaway battery 2, its position coordinates in the battery compartment 1 are determined based on the image captured by the infrared thermal imager, and then converted into coordinates in the coordinate system of the robotic arm 4. The controller 5 then plans the path for the robotic arm 4 to push the faulty battery based on the position of the faulty battery 2, the layout of the battery compartment 1 and the position of the robotic arm 4 itself. The robotic arm 4 then moves according to the planned path, pushes the faulty battery 2 out of the battery compartment 1, and cools it down or extinguishes the fire in the fire extinguishing pool 11.

[0059] Working principle of the robotic arm: Driven by the first telescopic member 42, the robotic arm 4 can move along the second direction on the slide rail 41, thereby driving the entire robotic arm 4 to move along the second direction; by starting the second telescopic member 43, the servo 44, the third telescopic assembly 45 and the push plate 46 can be driven to move in the up and down directions; by starting the servo 44, the third telescopic assembly 45 and the push plate 46 can be driven to rotate in the horizontal direction, so that the push plate 46 can achieve a 360° rotation; by starting the third telescopic member 45, the push plate 46 can be driven to move in the first direction to push the battery 2 that is in thermal runaway or produces smoke.

[0060] Example 2: This embodiment provides a firefighting method applied to a firefighting system of a new energy station energy storage system, including: Step 1: Use the monitoring component to monitor the battery 2 in the battery compartment 1 in real time to obtain information on whether the battery 2 is in thermal runaway or generating smoke; Step 2: When the monitoring component detects that the battery 2 is in thermal runaway or produces smoke, the information is transmitted to the controller 5. After receiving the information, the controller 5 controls the movement of the robotic arm 4; Step 3: Under the control of the controller 5, the robot arm 4 moves to the battery 2 that is experiencing thermal runaway or generating smoke, and pushes the battery 2 that is experiencing thermal runaway or generating smoke out of the battery compartment 1 through the corresponding battery outlet 3 using the push plate 46 of the robot arm 4; Step 4: After the battery 2 that is in thermal runaway or generating smoke leaves the battery compartment 1 through the corresponding battery outlet 3 , it falls into the corresponding fire extinguishing pool 11 for fire extinguishing treatment.

[0061] The above are only specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A fire protection system applied to a new energy station energy storage system, the energy storage system comprising a battery compartment (1) and a battery assembly arranged in the battery compartment (1), the battery assembly comprising two battery packs spaced apart along a first direction, with an inspection passage between the two battery packs; characterized in that: The battery compartment (1) comprises a first side and a second side opposite to each other along a first direction, and the fire fighting system comprises: A battery outlet (3), wherein the battery outlet (3) is provided on both the first side and the second side of the battery compartment (1); A robotic arm (4), the robotic arm (4) being disposed in the battery compartment (1) and located in the maintenance passage; the robotic arm (4) being capable of pushing a battery (2) that is in thermal runaway or generating smoke out of the battery compartment (1) through a corresponding battery outlet (3); A fire extinguishing pool (11) is provided outside the battery compartment (1) at a position near the battery outlet (3); a battery (2) that is in thermal runaway or produces smoke leaves the battery compartment (1) from the corresponding battery outlet (3) and falls into the corresponding fire extinguishing pool (11); A monitoring component, the monitoring component being arranged in the battery compartment (1), and monitoring whether the battery (2) in the battery compartment (1) is in thermal runaway or generates smoke; The controller (5) is electrically connected to the robotic arm (4) and the monitoring component respectively.

2. The fire protection system applied to the new energy station energy storage system according to claim 1, characterized in that: The batteries (2) are electrically connected via a detachable power line (6).

3. The fire protection system applied to the energy storage system of a new energy station according to claim 2, characterized in that: The detachable power cord (6) comprises a power cord 1 (61) and a power cord 2 (62), one end of each of the power cord 1 (61) and the power cord 2 (62) is provided with a magnetic member 1 (63), the power cord 1 (61) and the power cord 2 (62) are magnetically connected via the two magnetic members 1 (63), and the ends of the power cord 1 (61) and the power cord 2 (62) that are away from each other are connected to the corresponding battery (2).

4. The fire protection system applied to the new energy station energy storage system according to claim 1, characterized in that: A flip door (7) is hinged at the battery outlet (3) via a hinge shaft, and the flip door (7) and the battery compartment (1) are connected via a magnetic buckle (71).

5. The fire protection system applied to the energy storage system of a new energy station according to claim 4, characterized in that: Battery outlets (3) are provided at positions corresponding to the batteries (2) on the first side and the second side of the battery compartment (1), and a flip door (7) is installed at each battery outlet (3).

6. The fire protection system applied to the new energy station energy storage system according to claim 1, characterized in that: A slide rail (41) is provided on the top wall of the battery compartment (1) along a second direction, the second direction being perpendicular to the first direction, and the robotic arm (4) is slidably mounted on the slide rail (41); A first telescopic member (42) is installed on the slide rail (41), and an output end of the first telescopic member (42) is connected to the mechanical arm (4) to drive the mechanical arm (4) to move along the second direction on the slide rail (41).

7. The fire protection system applied to the energy storage system of a new energy station according to claim 6, characterized in that: The robotic arm (4) comprises: a second telescopic member (43), the second telescopic member (43) being slidably mounted on the slide rail (41), the second telescopic member (43) being connected to an output end of the first telescopic member (42), and the second telescopic member (43) being driven by the first telescopic member (42) to slide along a second direction on the slide rail (41); A steering gear (44), the steering gear (44) being mounted on the output end of the second telescopic member (43), the steering gear (44) being driven by the second telescopic member (43) and being capable of moving in an up-down direction; a third telescopic member (45), the third telescopic member (45) being mounted on a rotating end of the steering gear (44), and the third telescopic member (45) being driven by the steering gear (44) and capable of rotating in a horizontal direction; A push plate (46) is installed at the output end of the third telescopic member (45). The push plate (46) is driven by the third telescopic member (45) and can move along a first direction to push the battery (2) that is in thermal runaway or produces smoke.

8. The fire protection system applied to the new energy station energy storage system according to claim 1, characterized in that: The monitoring component includes a temperature sensor (8) for monitoring the temperature of the battery (2), a smoke sensor (9) for monitoring the smoke concentration, and an infrared thermal image acquisition device for acquiring infrared thermal images. The temperature sensor (8), the smoke sensor (9) and the infrared thermal image acquisition device are all electrically connected to the controller (5).

9. The fire protection system applied to the energy storage system of a new energy station according to claim 1, characterized in that: Positions where the batteries (2) are arranged in the battery compartment (1) are all provided with mounting surfaces, and each battery (2) is mounted on a corresponding mounting surface; The batteries (2) of the battery assembly are respectively recorded as a plurality of batteries one close to the first side of the battery compartment (1), and a plurality of batteries two close to the second side of the battery compartment (1); The battery outlet opened on the first side of the battery compartment (1) is recorded as battery outlet 1, and the battery outlet opened on the second side of the battery compartment (1) is recorded as battery outlet 2; The mounting surface of the battery 1 is arranged to be connected to the battery outlet 1, and is arranged to be inclined from high to low from the side where the battery 1 is located to the side where the battery outlet 1 is located; The installation surface of the second battery is arranged to lead to the second battery outlet, and is arranged to be inclined from high to low from the side where the second battery is located to the side where the second battery outlet is located.

10. The firefighting method for a firefighting system of a new energy station energy storage system according to any one of claims 1 to 9, characterized in that: include: Real-time monitoring of the battery (2) in the battery compartment (1) is performed through a monitoring component to obtain information on whether the battery (2) is in thermal runaway or generates smoke; When the monitoring component detects that the battery (2) is in thermal runaway or produces smoke, the information is transmitted to the controller (5), and after receiving the information, the controller (5) controls the movement of the robotic arm (4); The robotic arm (4) moves to the battery (2) that is in thermal runaway or generating smoke under the control of the controller (5), and pushes the battery (2) that is in thermal runaway or generating smoke out of the battery compartment (1) through the corresponding battery outlet (3) through the robotic arm (4); After the battery (2) that is in thermal runaway or produces smoke leaves the battery compartment (1) through the corresponding battery outlet (3), it falls into the corresponding fire extinguishing pool (11) for fire extinguishing treatment.

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