Battery pack safety fire-fighting equipment for sodium ion energy storage system

Abstract

The invention relates to the technical field of battery safety, and discloses a battery pack safety fire-fighting device for a sodium ion energy storage system, comprising: a housing for bearing an energy storage system and a fire-fighting device; the plurality of battery packs are all mounted in the shell and are used as main power generation sources of the energy storage system; the heat insulation plate I is arranged between the battery packs and is used for insulating heat between the battery packs; the fire extinguishing and isolating mechanism is arranged in the shell and is used for extinguishing fire and isolating the battery packs when the battery packs are on fire; and the auxiliary fire extinguishing and exhausting mechanism is arranged at the top of the shell and is used for performing auxiliary fire extinguishing and centralized collection of toxic smoke when the battery pack is on fire. Through the hierarchical fire extinguishing strategy, the fire behavior can be effectively controlled and finally extinguished, the three-step fire extinguishing strategy is high in systematicness and can be flexibly adjusted according to the change of the fire behavior, and the fire extinguishing efficiency and success rate are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of battery safety technology, and in particular to battery pack safety fire-fighting equipment for a sodium ion energy storage system. Background Art

[0002] In existing sodium-ion energy storage systems, ensuring the safety and monitoring management of battery packs is an ongoing major challenge. Due to their chemical and physical properties, sodium-ion batteries are very prone to overheating in the event of overcharging, over-discharging, or internal short circuits. This overheating can sometimes quickly evolve into thermal runaway, causing the battery to catch fire or even explode, posing serious safety risks to the device itself and its surroundings. In addition, the fire characteristics of sodium-ion batteries, such as high-temperature combustion and the possible release of harmful chemicals, make standard fire-fighting methods difficult to work, requiring more professional and targeted fire-fighting strategies.

[0003] However, the existing battery fire fighting equipment still has some inconveniences in actual use. First, the traditional battery fire fighting system usually only relies on basic sprinkler systems and general fire extinguishing agents. These systems are often unable to specifically deal with the unique characteristics of battery fires, such as thermal runaway. They usually intervene only after the fire has developed to a certain stage, resulting in low fire fighting efficiency and delayed fire control, which is unable to effectively prevent the spread of fire and damage expansion.

[0004] Second, existing firefighting systems often lack the ability to quickly and accurately identify the specific battery module that caught fire in the early stages of a battery pack fire. This deficiency results in the inability to immediately isolate and focus on the fire point, making it possible for a small-scale fire to expand into a larger-scale disaster, increasing overall system damage and complex firefighting operations.

[0005] Finally, in battery energy storage systems, existing safety monitoring and management systems often lack sufficient intelligent control, which limits their capabilities in fire emergency response and subsequent processing (such as hazardous gas treatment). Traditional systems involve a lot of manual intervention, which not only reduces the speed and efficiency of emergency processing, but may also cause secondary accidents or delay the treatment of hazardous gases due to improper operation, posing a long-term threat to the environment and personnel safety. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a battery pack safety fire-fighting device for a sodium ion energy storage system, which solves the problem that fire-fighting measures are not timely enough and the fire cannot be controlled in a hierarchical distribution.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a battery pack safety fire fighting device for a sodium ion energy storage system, comprising:

[0008] A housing for carrying an energy storage system and fire-fighting facilities;

[0009] A battery pack, which is provided in multiple numbers and all installed inside the housing, is used as the main power generation source of the energy storage system;

[0010] A heat shield 1, which is arranged between the battery packs to isolate the heat between the battery packs;

[0011] A fire extinguishing and isolating mechanism, which is arranged inside the housing and is used to extinguish the fire and isolate the battery packs when the battery packs catch fire;

[0012] Auxiliary fire extinguishing exhaust mechanism, which is arranged on the top of the shell and is used for auxiliary fire extinguishing of battery pack fire and centralized collection of toxic smoke;

[0013] The central control module is arranged on one side of the housing and is used to cooperate with the sensor group control equipment installed in the equipment to perform refined fire extinguishing operations;

[0014] The heat dissipation pipe is arranged on one side of the battery pack to assist the battery pack in heat dissipation.

[0015] Preferably, the fire extinguishing mechanism includes a protective frame, a plurality of motors are arranged inside the protective frame, hollow columns are fixed to the output ends of the motors, turntables are fixed to the outer walls of the hollow columns, a blocking block is arranged on one side of the turntable, a vent hole is opened inside the insulation board, and the blocking block can block the vent hole by rotating.

[0016] Preferably, a plurality of spray heads passing through the hollow column are arranged inside, a delivery pipe 1 is fixed to one end of the hollow column away from the motor, a water tank is fixed to one end of the delivery pipe 1 away from the hollow column, and a water pump is arranged inside the water tank.

[0017] Preferably, the auxiliary fire extinguishing exhaust mechanism includes a top cover, which is fixed on the top of the outer shell, and the bottom of the top cover is connected to the first insulation board through the second insulation board. A solenoid valve is arranged inside the top cover, and a delivery pipe second is arranged at the bottom of the solenoid valve, and the delivery pipe second passes through the second insulation board and extends to the outside.

[0018] Preferably, multiple groups of three delivery pipes that are symmetrical front to back are provided on the other side of the solenoid valve, a gas storage bottle is fixed to one end of the delivery pipes three away from the solenoid valve, and a waste gas bottle is fixed to one end of another group of three delivery pipes, and air pumps are provided inside the gas storage bottle and the waste gas bottle.

[0019] Preferably, the cooling liquid inside the heat dissipation pipe is filled with a water-based liquid, and a solar panel is arranged on the top of the top cover.

[0020] Preferably, the central control module includes a sensor module, a PLC module and a safety module;

[0021] The sensor module is used to monitor the battery pack status and external environment in real time, including temperature, pressure, gas composition, etc., so as to detect fire in time;

[0022] The PLC module is responsible for receiving the signal from the sensor module and starting the corresponding fire extinguishing partition mechanism and auxiliary fire extinguishing exhaust mechanism according to the preset logic control program;

[0023] The safety module is used to calculate whether the fire extinguishing operation is completed, and control the auxiliary fire extinguishing exhaust mechanism to perform the exhaust operation according to the result.

[0024] Preferably, the sensor module comprises:

[0025] A temperature sensor mounted inside the housing to monitor the battery pack and ambient temperature and respond to temperature changes outside of a normal range;

[0026] Smoke detectors, which are installed inside the housing and are used to detect smoke particles in the air for early detection of fire;

[0027] A gas analyzer, which is installed inside the housing and is used to analyze the gas composition in the environment, especially to detect combustible gases or harmful gases produced by fire;

[0028] The pressure sensor is installed inside the housing and is used to monitor the internal pressure of the system to prevent safety problems caused by excessive pressure.

[0029] Preferably, the PLC module comprises:

[0030] An information receiving and processing unit, used to receive data information transmitted by the sensor module, and to perform automatic overall recognition to determine whether there is a value exceeding a predetermined threshold;

[0031] A fire extinguishing zone selection unit, which is used to identify the battery pack area corresponding to the fire according to the information transmitted by the sensor module;

[0032] The fire extinguishing operation unit is used to control the corresponding fire extinguishing mechanism to perform precise fire extinguishing operations according to the selection of the fire extinguishing interval.

[0033] Preferably, the security module comprises:

[0034] A fire extinguishing completion unit, used to determine whether the fire extinguishing of the battery pack corresponding to the fire area is completed according to the sensor module data;

[0035] The adaptive control unit is used to control the equipment to extract and centrally collect the post-fire extinguishing gas after the fire extinguishing operation is completed.

[0036] Working principle: After the sensor module detects data anomalies, the corresponding PLC module starts to control the equipment. At this time, it makes a judgment based on the battery pack area where the abnormal data appears. After confirming the fire, the motor starts to work, and then controls the hollow column to rotate. After the hollow column rotates to a certain amplitude, it will drive the blocking block to block the position of the vent through the turntable, and then temporarily make each battery pack storage area an unventilated closed compartment. At this time, as the temperature rises, the material of the corresponding heat dissipation pipe will melt due to its low melting point, causing the water-based solution stored inside to disperse, cooling the battery pack in the fire area and controlling the fire for the first time. After that, the water in the water tank The water pump starts to output, so that the sprinkler head valve at the corresponding position in the battery pack compartment opens. At this time, the water output by the water tank pump will be directly sprayed out through the sprinkler head, thereby performing targeted fire extinguishing in the compartment of the corresponding battery pack that has caught fire. At the same time, the air pump in the gas cylinder will also synchronously transport the carbon dioxide in the gas cylinder through the delivery pipe 2 to the compartment of the corresponding battery pack that has caught fire, so that the fire extinguishing operation can be completed faster. After the safety module determines that the fire extinguishing operation is completed through the sensor data, the solenoid valve starts to switch the pipeline, so that the part of the pipeline passage connecting the delivery pipe 2 to the waste gas bottle is started, and then the toxic smoke generated in the battery pack area that has caught fire is collected centrally through the air pump in the waste gas bottle.

[0037] The present invention provides a battery pack safety fire-fighting device for a sodium ion energy storage system. It has the following beneficial effects:

[0038] 1. The present invention releases coolant by fusing the heat pipe to perform preliminary cooling and fire control on the fire area, and then uses the sprinkler system started by the water pump to centrally extinguish the fire in the focus area; finally, carbon dioxide is sprayed to cut off the oxygen supply to the fire source and completely extinguish the fire. In this way, the fire can be effectively controlled and finally extinguished through a hierarchical fire extinguishing strategy. This three-step fire extinguishing strategy is not only highly systematic, but also can be flexibly adjusted according to changes in the fire, which greatly improves the efficiency and success rate of fire extinguishing.

[0039] 2. When a fire is detected, the system can automatically start the isolation mechanism to quickly isolate the affected battery pack from other areas and effectively prevent the spread of fire. At the same time, by using high-precision sensors and advanced data processing technology, the system can accurately identify the specific fire interval and ensure that fire-fighting measures are targeted only to the affected area, thereby minimizing damage to the overall system.

[0040] 3. The present invention realizes intelligent monitoring and automatic management of battery packs through the high integration of advanced sensor modules, PLC modules and safety modules. Through real-time data analysis and adaptive control strategies, the system can not only respond quickly when a fire occurs, but also automatically perform subsequent environmental recovery operations, such as extraction and discharge of harmful gases, after the fire is under control. This intelligent control system greatly improves operational efficiency, reduces human intervention, and enhances system reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A perspective view of the present invention;

[0042] Figure 2 It is a structural explosion diagram of the present invention;

[0043] Figure 3 It is a structural schematic diagram of a hollow column of the present invention;

[0044] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0045] Figure 5 A schematic diagram of a battery pack of the present invention;

[0046] Figure 6 It is a schematic diagram of the central control module of the present invention;

[0047] Figure 7 is a schematic diagram of a sensor module of the present invention;

[0048] Figure 8 It is a schematic diagram of a PLC module of the present invention;

[0049] Fig. 9 It is a schematic diagram of the safety module of the present invention.

[0050] Among them, 1. Shell; 2. Battery pack; 3. Insulation board 1; 4. Protection frame; 5. Motor; 6. Hollow column; 7. Turntable; 8. Blocking block; 9. Vent; 10. Sprinkler head; 11. Water tank; 12. Delivery pipe 1; 13. Top cover; 14. Insulation board 2; 15. Solenoid valve; 16. Delivery pipe 2; 17. Gas cylinder; 18. Waste gas cylinder; 19. Delivery pipe 3; 20. Solar panel; 21. Central control module; 22. Heat dissipation pipe. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Embodiment 1:

[0053] Please refer to the attached Figure 1 -Attached Figure 5 , an embodiment of the present invention provides a battery pack safety fire fighting device for a sodium ion energy storage system, comprising:

[0054] A housing 1, which is used to carry an energy storage system and fire-fighting facilities;

[0055] A battery pack 2, of which there are multiple batteries and all are installed inside the housing 1, and is used as the main power generation source of the energy storage system;

[0056] A heat insulation board 3, which is arranged between the battery packs 2 and is used to isolate the heat between the battery packs 2;

[0057] A fire extinguishing and isolating mechanism, which is arranged inside the housing 1 and is used to extinguish the fire and isolate the battery pack 2 when the battery pack 2 catches fire;

[0058] An auxiliary fire extinguishing exhaust mechanism, which is arranged on the top of the housing 1 and is used for auxiliary fire extinguishing of the battery pack 2 and centralized collection of toxic smoke;

[0059] The central control module 21 is arranged on one side of the housing 1 and is used to cooperate with the sensor group installed in the device to control the device to perform refined fire extinguishing operations;

[0060] A heat dissipation pipe 22, which is arranged on one side of the battery pack 2 and is used to assist the battery pack 2 in heat dissipation;

[0061] The fire extinguishing mechanism includes a protection frame 4, a plurality of motors 5 are arranged inside the protection frame 4, hollow columns 6 are fixed to the output ends of the motors 5, a turntable 7 is fixed to the outer wall of the hollow columns 6, a blocking block 8 is arranged on one side of the turntable 7, a vent hole 9 is opened inside the heat insulation board 3, and the blocking block 8 can block the vent hole 9 by rotating.

[0062] A plurality of spray heads 10 are arranged inside the hollow column 6, a delivery pipe 12 is fixed to one end of the hollow column 6 away from the motor 5, a water tank 11 is fixed to one end of the delivery pipe 12 away from the hollow column 6, and a water pump is arranged inside the water tank 11;

[0063] The cooling liquid inside the heat dissipation pipe 22 is filled with a water-based liquid, and a solar panel 20 is arranged on the top of the top cover 13 .

[0064] Specifically, through highly integrated sensor modules and PLC modules, real-time monitoring and abnormal management of the battery pack 2 are achieved; when the system detects abnormal data, the PLC module responds quickly to accurately judge and control the battery pack 2 area; once a fire event is confirmed, the system automatically initiates a series of precisely coordinated operating steps to ensure that the fire is quickly and effectively controlled and extinguished; first, the motor 5 is activated to drive the hollow column 6 to rotate; after the hollow column 6 rotates to a predetermined angle, the blocking block 8 is driven by the turntable 7 to accurately block the vent 9; this key step can achieve the isolation of each battery pack 2 storage area, converting it into a closed compartment without ventilation, thereby And effectively limit the spread of fire; as the temperature in the closed area rises, the low melting point material in the heat dissipation pipe 22 will melt due to thermal action; after the heat dissipation pipe 22 melts, the water-based solution stored inside it is released, and the battery pack 2 in the fire area is initially cooled and the fire is controlled. This is the first line of defense in response to fire, and the reaction is relatively fast, and it can react in time when there is a certain delay in the sensor module; further fire extinguishing steps involve the water pump in the water tank 11, which starts to transport water to the sprinkler head 10 in the corresponding battery pack 2 compartment; the valve of the sprinkler head 10 is opened at this time, and the water in the water tank 11 is directly sprayed onto the battery pack 2 on fire, and a targeted fire extinguishing operation is performed.

[0065] Please refer to the attached Figure 2 The auxiliary fire extinguishing exhaust mechanism includes a top cover 13, the top cover 13 is fixed on the top of the housing 1, the bottom of the top cover 13 is connected to the heat insulation board 1 3 through the heat insulation board 14, a solenoid valve 15 is arranged inside the top cover 13, and a delivery pipe 16 is arranged at the bottom of the solenoid valve 15, and the delivery pipe 16 passes through the heat insulation board 14 and extends to the outside;

[0066] A plurality of front-to-back symmetrical delivery pipes 19 are arranged on the other side of the solenoid valve 15. A gas storage bottle 17 is fixed to one end of the delivery pipe 19 away from the solenoid valve 15, and a waste gas bottle 18 is fixed to one end of another delivery pipe 19. Both the gas storage bottle 17 and the waste gas bottle 18 are provided with air pumps.

[0067] Specifically, after the first two fire extinguishing processes are completed, the air pump in the gas cylinder 17 works at the same time to deliver carbon dioxide to the same compartment through the delivery pipe 16 to accelerate the fire extinguishing process and further stabilize the environment of the fire area; after the fire is controlled, the safety module determines that the fire extinguishing operation has been completed based on the data collected by the sensor; at this time, the solenoid valve 15 is activated, and the pipeline switching operation is performed to enable the connection part between the delivery pipe 16 and the waste gas bottle 18; the air pump in the waste gas bottle 18 is then started to centrally extract and collect the toxic smoke generated in the area of ​​the battery pack 2 on fire, effectively reducing the pollution and potential health risks of the environment after the fire; through the above-mentioned three-step fire extinguishing strategy and meticulous system design, the present invention not only achieves efficient protection of the battery pack 2, but also ensures rapid response and processing after the fire; finally, through fixed-point fire extinguishing and centralized treatment of toxic smoke, safety and environmental protection are significantly improved, and the safe and stable operation of the battery storage area is effectively maintained.

[0068] Embodiment 2:

[0069] Please refer to the attached Figure 6 -Attached Fig. 9 , the central control module 21 includes a sensor module, a PLC module and a safety module;

[0070] The sensor module is used to monitor the status of the battery pack 2 and the external environment in real time, including temperature, pressure, gas composition, etc., so as to detect fire in time;

[0071] The PLC module is responsible for receiving the signal from the sensor module and starting the corresponding fire extinguishing partition mechanism and auxiliary fire extinguishing exhaust mechanism according to the preset logic control program;

[0072] The safety module is used to calculate whether the fire extinguishing operation is completed, and control the auxiliary fire extinguishing exhaust mechanism to perform the exhaust operation according to the result;

[0073] The sensor module includes:

[0074] A temperature sensor, which is installed inside the housing 1 and is used to monitor the battery pack 2 and the ambient temperature and respond to temperature changes beyond a normal range;

[0075] A smoke detector, which is installed inside the housing 1 and is used to detect smoke particles in the air for early detection of fire;

[0076] A gas analyzer, which is installed inside the housing 1 and is used to analyze the gas composition in the environment, especially to detect combustible gas or harmful gas produced by fire;

[0077] A pressure sensor is installed inside the housing 1 to monitor the internal pressure of the system to prevent safety problems caused by excessive pressure;

[0078] PLC modules include:

[0079] An information receiving and processing unit, used to receive data information transmitted by the sensor module, and to perform automatic overall recognition to determine whether there is a value exceeding a predetermined threshold;

[0080] A fire extinguishing zone selection unit, which is used to identify the battery pack 2 area corresponding to the fire according to the information transmitted by the sensor module;

[0081] A fire extinguishing operation unit, which is used to control the corresponding fire extinguishing mechanism to perform precise fire extinguishing operations according to the selection of the fire extinguishing interval;

[0082] The security module includes:

[0083] A fire extinguishing completion unit, used to determine whether the fire extinguishing of the battery pack 2 corresponding to the fire area is completed according to the sensor module data;

[0084] The adaptive control unit is used to control the equipment to extract and centrally collect the post-fire extinguishing gas after the fire extinguishing operation is completed.

[0085] Specifically, the central control module 21 is a key component in the battery pack energy storage system. It integrates the sensor module, PLC module and safety module to ensure that the battery pack 2 can respond quickly and effectively in the event of a fire. The sensor module is responsible for real-time monitoring of key parameters such as temperature, pressure, gas composition, etc. of the battery pack 2 and the environment, and collects data through temperature sensors, smoke detectors, gas analyzers and pressure sensors installed inside the housing 1. These sensors can detect abnormal conditions in a timely manner, such as abnormal temperature rise or detection of smoke and harmful gases, so as to preliminarily judge possible fire situations. The PLC module receives data from the sensor module and analyzes the data through its information receiving and processing unit to determine whether any data exceeds a preset safety threshold. If a fire is confirmed, the fire extinguishing interval selection unit will determine the specific area of ​​the battery pack 2 where the fire occurred. Subsequently, the fire extinguisher The fire operation unit activates the corresponding fire extinguishing and isolation mechanisms, such as starting the sprinkler system and closing the vent 9, to ensure accurate and timely primary fire extinguishing operations. The safety module plays a role in subsequent monitoring and evaluation in fire control; the fire extinguishing completion unit continuously receives updated data from the sensor module to assess whether the fire has been completely under control; once it is confirmed that the fire has been successfully extinguished, the adaptive control unit directs the exhaust mechanism to operate and starts the equipment to extract and centrally collect the harmful gases accumulated in the area after the fire is extinguished, so as to remove possible toxic smoke and restore environmental safety. Overall, the central control module 21 achieves rapid response and effective management of potential fire situations of the battery pack 2 through these highly automated and interconnected units, which is not limited to fire extinguishing, but also includes subsequent environmental restoration, thereby ensuring the safe operation and environmental protection of the battery energy storage system.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Battery safety fire fighting equipment for sodium ion energy storage system, characterized in that: include: A housing (1) for carrying an energy storage system and fire-fighting facilities; A plurality of battery packs (2) are provided and all are installed inside the housing (1) and are used as the main power generation source of the energy storage system; A heat insulation board (3) is arranged between the battery packs (2) and is used to isolate the heat between the battery packs (2); A fire extinguishing and isolating mechanism, which is arranged inside the housing (1) and is used to extinguish the fire and isolate the battery pack (2) when the battery pack (2) catches fire; An auxiliary fire extinguishing exhaust mechanism, which is arranged on the top of the housing (1) and is used for assisting in extinguishing a fire in the battery pack (2) and for centrally collecting toxic smoke; A central control module (21), which is arranged on one side of the housing (1) and is used to cooperate with a sensor group control device installed in the device to perform refined fire extinguishing operations; A heat dissipation pipe (22) is arranged on one side of the battery pack (2) and is used to assist the battery pack (2) in performing heat dissipation operations.

2. The battery pack safety fire fighting equipment for sodium ion energy storage system according to claim 1, characterized in that: The fire extinguishing mechanism comprises a protection frame (4), a plurality of motors (5) are arranged inside the protection frame (4), a hollow column (6) is fixed to the output end of each motor (5), a rotating disk (7) is fixed to the outer wall of each hollow column (6), a blocking block (8) is arranged on one side of the rotating disk (7), a vent hole (9) is opened inside the heat insulation board (3), and the blocking block (8) can block the vent hole (9) by rotating.

3. The battery pack safety fire fighting equipment for the sodium ion energy storage system according to claim 2, characterized in that: A plurality of spray heads (10) are arranged inside the hollow column (6) and extend therethrough. A delivery pipe (12) is fixed to one end of the hollow column (6) away from the motor (5). A water tank (11) is fixed to one end of the delivery pipe (12) away from the hollow column (6). A water pump is arranged inside the water tank (11).

4. The battery pack safety fire fighting equipment for sodium ion energy storage system according to claim 1, characterized in that: The auxiliary fire extinguishing exhaust mechanism comprises a top cover (13), the top cover (13) is fixed on the top of the housing (1), the bottom of the top cover (13) is connected to the first heat insulation board (3) through the second heat insulation board (14), a solenoid valve (15) is arranged inside the top cover (13), a second delivery pipe (16) is arranged at the bottom of the solenoid valve (15), and the second delivery pipe (16) passes through the second heat insulation board (14) and extends to the outside.

5. The battery pack safety fire fighting equipment for the sodium ion energy storage system according to claim 4, characterized in that: A plurality of groups of delivery pipes (19) are arranged on the other side of the solenoid valve (15) in a front-to-back symmetrical manner. A gas storage bottle (17) is fixed to one end of the delivery pipe (19) away from the solenoid valve (15), and a waste gas bottle (18) is fixed to one end of another group of delivery pipes (19). Air pumps are arranged inside the gas storage bottle (17) and the waste gas bottle (18).

6. The battery pack safety fire fighting equipment for a sodium ion energy storage system according to claim 4, characterized in that: The cooling liquid inside the heat dissipation pipe (22) is filled with a water-based liquid, and a solar panel (20) is arranged on the top of the top cover (13).

7. The battery pack safety fire fighting equipment for sodium ion energy storage system according to claim 1, characterized in that: The central control module (21) comprises a sensor module, a PLC module and a safety module; The sensor module is used to monitor the state of the battery pack (2) and the external environment in real time, including temperature, pressure, gas composition, etc., so as to detect fire in time; The PLC module is responsible for receiving the signal from the sensor module and starting the corresponding fire extinguishing partition mechanism and auxiliary fire extinguishing exhaust mechanism according to the preset logic control program; The safety module is used to calculate whether the fire extinguishing operation is completed, and control the auxiliary fire extinguishing exhaust mechanism to perform the exhaust operation according to the result.

8. The battery pack safety fire fighting equipment for the sodium ion energy storage system according to claim 7, characterized in that: The sensor module comprises: A temperature sensor installed inside the housing (1) for monitoring the battery pack (2) and ambient temperature and responding to temperature changes beyond a normal range; a smoke detector, which is installed inside the housing (1) and is used to detect smoke particles in the air for early detection of fire; A gas analyzer installed inside the housing (1) and used to analyze gas components in the environment, in particular to detect combustible gases or harmful gases produced by fire; The pressure sensor is installed inside the housing (1) and is used to monitor the internal pressure of the system to prevent safety problems caused by excessive pressure.

9. The battery pack safety fire fighting equipment for a sodium ion energy storage system according to claim 7, characterized in that: The PLC module comprises: An information receiving and processing unit, used to receive data information transmitted by the sensor module, and to perform automatic overall recognition to determine whether there is a value exceeding a predetermined threshold; A fire extinguishing zone selection unit, which is used to identify the battery pack (2) area corresponding to the fire according to the information transmitted by the sensor module; The fire extinguishing operation unit is used to control the corresponding fire extinguishing mechanism to perform precise fire extinguishing operations according to the selection of the fire extinguishing interval.

10. The battery pack safety fire fighting equipment for sodium ion energy storage system according to claim 7, characterized in that: The security module comprises: A fire extinguishing completion unit, used for determining whether the fire extinguishing of the battery pack (2) corresponding to the fire area is completed according to the sensor module data; The adaptive control unit is used to control the equipment to extract and centrally collect the post-fire extinguishing gas after the fire extinguishing operation is completed.

Images