Container energy storage system with fire-fighting function

Abstract

The utility model relates to the technical field of energy storage, in particular to a container energy storage system with a fire-fighting function, which comprises an energy storage container, a container base is fixedly mounted at the bottom of the energy storage container, a plurality of groups of reinforcing columns are symmetrically mounted on two sides in the energy storage container, and a plurality of foam nozzles are formed in the reinforcing columns at equal intervals along the vertical direction. The inner ends of the foam nozzles jointly communicate with a conduction pipe arranged in the reinforcing column, the conduction pipe movably penetrates through the wall of the energy storage container outwards to communicate with a conveying pipe, the bottom end of the conveying pipe communicates with a foam extinguishing agent bottle fixed to the top of the container base, and two sets of covering type liquid spraying rows are symmetrically arranged on the two sides of the top in the energy storage container. The top of the covering type liquid spraying row communicates with a special fire extinguishing agent box installed outside the top of the energy storage container, and multiple sets of open fire detectors and temperature sensors are evenly installed on the inner wall of the energy storage container. According to the system, a fire source in the box can be extinguished in a covering mode in a short time, and the efficient and accurate fire-fighting function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically a container energy storage system with fire-fighting function. Background Technology

[0002] Containerized energy storage systems are integrated energy storage systems developed to meet the needs of the mobile energy storage market. They can integrate energy storage converters and energy management systems according to customer requirements. Through lithium battery charging and discharging operations, they play a role in peak shaving and valley filling, improving power quality, acting as backup power, and regulating frequency to participate in smart grid construction. These container-like "energy storage battery compartments" can store electricity during off-peak hours for use during peak hours. Due to their large size, energy storage containers are generally placed outdoors. The large number of batteries inside, combined with hot external weather or aging internal wiring, makes them highly susceptible to fire.

[0003] The existing patent application number is 2024104019462, which discloses a containerized energy storage system with fire-fighting linkage function. It effectively solves the problems that it cannot isolate the outside air in time when a fire occurs, cannot spray the fire from multiple angles inside, and cannot protect the nozzles when not in use. After analyzing the above energy storage system, it can be seen that it uses water to spray at the source of the fire to extinguish the fire. Although it can deal with local fire sources, water is mostly ineffective in extinguishing fires caused by batteries. On the contrary, it may cause a larger fire. In addition, the structure of the above system is relatively complex, which further increases the complexity inside the container.

[0004] Therefore, in view of the above-mentioned problems, this technical solution proposes a container energy storage system with fire-fighting function. Utility Model Content

[0005] The purpose of this invention is to provide a containerized energy storage system with fire-fighting capabilities to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a containerized energy storage system with fire-fighting function, comprising an energy storage container, a base fixedly installed at the bottom of the energy storage container, the base being fixed in the position where the energy storage container is to be used, and a battery system, a power conversion system (PCS), a battery management system (BMS), and a thermal management system, etc., are installed inside the energy storage container. During operation, in charging mode, external AC power is converted to DC power by the PCS, the BMS controls the current distribution to each battery module, and the thermal management system maintains a suitable temperature; in discharging mode, the battery releases DC power, the PCS converts the DC power to AC power output, and the BMS ensures balanced discharge and prevents over-discharge, thereby safely and smoothly charging and discharging the internal current; multiple sets of reinforcing columns are symmetrically installed on both sides inside the energy storage container, and multiple foam nozzles are evenly spaced along the vertical direction on the reinforcing columns. The inner ends of the foam nozzles are connected to a conduction pipe opened inside the reinforcing column, the conduction pipe moves outward through the container wall and connects to a transmission pipe, the bottom end of which is connected to a foam extinguishing agent bottle fixed to the top of the base. The system uses foam extinguishing agent cylinders to spray the foam inside the energy storage container in a depressurized manner through foam nozzles, effectively covering the internal components from the side. Simultaneously, two sets of covering liquid spray nozzles are symmetrically installed on both sides of the top of the energy storage container. These nozzles are connected to a dedicated extinguishing agent tank installed on the outside of the container's top. The two sets of covering liquid spray nozzles cover the upper interior of the container. Multiple open flame detectors and temperature sensors are evenly installed on the inner walls of the container. These detectors and sensors monitor the internal temperature changes and detect the presence of open flames in real time. In conjunction with the container's internal thermal management system, the system automatically controls the operation of the foam nozzles and covering liquid spray nozzles. Specifically, upon detecting a large fire, the thermal management system activates the two sets of covering liquid spray nozzles simultaneously, spraying liquid extinguishing agent downwards from the upper interior of the container. Combined with the foam sprayed from the sides, this ensures effective and rapid fire suppression, achieving the highly efficient fire extinguishing function of this energy storage system.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: By uniformly arranging multiple sets of reinforcing columns with foam nozzles on both sides inside the energy storage container, the reinforcing columns enhance the sturdiness of both sides of the energy storage container, while the foam sprayed from the foam nozzles extinguishes the fire on the internal components of the energy storage container. At the same time, two sets of covering liquid spray nozzles are set on the top of the energy storage container to cover the upper side of the internal components of the energy storage container. The liquid extinguishing agent sprayed in the covering liquid spray nozzles enables the function of covering fire extinguishing in a short time in the event of a large fire inside the energy storage container, ensuring the high efficiency of the fire protection function of this system. Attached Figure Description

[0008] Figure 1This is a three-dimensional structural diagram of a containerized energy storage system with fire-fighting capabilities.

[0009] Figure 2 This is a top view of a containerized energy storage system with fire-fighting capabilities.

[0010] Figure 3 This is a side view of a containerized energy storage system with fire-fighting capabilities.

[0011] Figure 4 for Figure 3 A magnified structural diagram of A in the diagram.

[0012] The components include: energy storage container 10, container base 11, special fire extinguishing agent tank 12, foam fire extinguishing agent bottle 13, electric control valve 14, transmission pipe 15, reinforcing column 17, foam nozzle 18, open flame detector 19, covered liquid spray 20, connecting pipe 21, V-shaped guide net plate 22, nozzle 23, solenoid valve 24, and insulation plate 25. Detailed Implementation

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1-4 A containerized energy storage system with fire-fighting capabilities includes an energy storage container 10. A base 11 is fixedly installed at the bottom of the energy storage container 10, and the base 11 is fixed to the position where the energy storage container 10 is to be used. The energy storage container 10 contains a battery system, a power conversion system (PCS), a battery management system (BMS), and a thermal management system. During operation, in charging mode, external AC power is converted to DC power by the PCS, and the BMS controls the current distribution to each battery module, while the thermal management system maintains a suitable temperature. In discharging mode, the battery releases DC power, and the PCS converts the DC power to DC power... Switching to AC output, the BMS ensures balanced discharge and prevents over-discharge, thereby enabling safe and smooth charging and discharging of the internal current. Multiple sets of reinforcing columns 17 are symmetrically installed on both sides inside the energy storage container 10. Each reinforcing column 17 has multiple foam nozzles 18 spaced evenly along the vertical direction. The inner ends of the foam nozzles 18 are connected to a conductive tube located inside the reinforcing column 17. This conductive tube extends outwards through the wall of the energy storage container 10 and connects to a transmission pipe 15. The bottom end of the transmission pipe 15 connects to a foam extinguishing agent bottle 13 fixed to the top of the container base 11. The foam extinguishing agent is then transferred through the foam extinguishing agent bottle 13. The internal foam is sprayed in a depressurized manner through foam nozzles 18 into the energy storage container 10, fully covering the internal components of the energy storage container 10 from the side. Simultaneously, two sets of covering liquid spray nozzles 20 are symmetrically arranged on both sides of the top of the energy storage container 10. The top of the covering liquid spray nozzles 20 is connected to a dedicated fire extinguishing agent tank 12 installed on the outside of the top of the energy storage container 10. The two sets of covering liquid spray nozzles 20 cover the upper interior of the energy storage container 10. Multiple sets of open flame detectors 19 and temperature sensors are evenly installed on the inner wall of the energy storage container 10. The detector 19 and temperature sensor are used to monitor the temperature changes inside the energy storage container 10 in real time and whether there is an open flame. Then, in conjunction with the thermal management system inside the energy storage container 10, the operation of the foam nozzle 18 and the cover-type liquid spray nozzle 20 is automatically controlled. That is, when a large fire is detected, the thermal management system starts the two sets of cover-type liquid spray nozzles 20 to operate synchronously, spraying liquid fire extinguishing agent from the upper side of the energy storage container 10 downwards in a cover-type manner. Combined with the foam agent sprayed on both sides, it ensures that the fire is fully and effectively extinguished in a short time, realizing the efficient fire extinguishing function of this energy storage system.

[0018] In this embodiment of the invention, the reinforcing column 17 is made of metal heat insulation material. The bottom end of the reinforcing column 17 extends into the interior of the box base 11 and is fixedly connected thereto. The uniform distribution of the reinforcing columns 17 on both sides can increase the impact resistance of the side walls of the energy storage container 10. That is, when a major explosion impact occurs inside the energy storage container 10, the reinforcing column 17 can, to a certain extent, reduce the impact damage to the side walls of the energy storage container 10.

[0019] The special fire extinguishing agent inside the special fire extinguishing agent tank 12 is generally a water-based fire extinguishing agent with special additives, that is, it uses liquid to cool down and extinguish the fire when sprayed onto the battery; the special additives generally refer to: surfactants, viscosity enhancers, antifreeze, etc.

[0020] An electric control valve 14 is installed on the transmission pipe 15 to control the output of foam extinguishing agent inside the foam extinguishing agent bottle 13. A solenoid valve 24 is installed at the connection between the covered liquid spray nozzle 20 and the dedicated extinguishing agent tank 12 to control the transmission of the dedicated extinguishing agent liquid in the dedicated extinguishing agent tank 12 toward the covered liquid spray nozzle 20. The electric control valve 14, solenoid valve 24, open flame detector 19, and temperature sensor are all electrically connected to the thermal management system. The thermal management system mainly includes an execution module, an analysis module, and a transceiver module. The transceiver module receives signals from the open flame detector 19 and the temperature sensor, and then transmits them to the analysis module for analysis and judgment. Based on the analysis and judgment results, the execution module controls the operation of the electric control valve 14 and the solenoid valve 24, thereby realizing an automated monitoring and operation fire protection mode.

[0021] Specifically, the open flame detector 19 includes a flame detector and an open flame detector. The flame detector is mainly used to detect visible or invisible light radiation produced when a substance burns, including light radiation generated simultaneously with smoke and heat release. The open flame detector emphasizes its ability to detect ultraviolet light in flames to issue an alarm.

[0022] In one embodiment of the present invention, the covered liquid spray nozzle 20 has multiple nozzles 23 evenly distributed inside. A V-shaped guide plate 22 is provided on the top of the nozzle 23. A connecting pipe 21 is connected to the top middle of the V-shaped guide plate 22. The top of the connecting pipe 21 is connected to the bottom middle of the special extinguishing agent tank 12. The special extinguishing agent falling through the connecting pipe 21 is distributed to the upper part of the nozzle 23 by the guide of the V-shaped guide plate 22, and then output through the nozzle 23 to spray and extinguish the fire on the components inside the energy storage container 10. A solenoid valve 24 is provided on the connecting pipe 21 to control the output of the special extinguishing agent inside the special extinguishing agent tank 12.

[0023] Specifically, an insulating board 25 is installed between the bottom of the dedicated fire extinguishing agent tank 12 and the energy storage container 10. The insulating board 25 is used to insulate and isolate the interior of the energy storage container 10 from the dedicated fire extinguishing agent tank 12, ensuring that under normal conditions, if a fault or leakage occurs inside the energy storage container 10, it will not cause a conductive hazard to the dedicated fire extinguishing agent tank 12.

[0024] The working principle of this utility model is as follows: In the idle state of this device, all the aforementioned driving components, referring to power elements, electrical devices, and compatible power supplies, are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the field. The following mainly describes the working principle and process, without further explanation of the electrical control. During operation, the open flame detector 19 and temperature sensor operate normally, monitoring the temperature changes inside the energy storage container 10 and whether an open flame appears. Once the temperature changes drastically to the point of an open flame, the thermal management system... The execution module, analysis module, and transmission module in the system work together to control the electric control valve 14 on the corresponding foam extinguishing agent bottle 13 according to the ignition point and the size of the fire. Then, foam is sprayed towards the fire through the corresponding inner reinforcing column 17 to extinguish the fire. In the event of a large fire, the solenoid valve 24 at the connection between the special extinguishing agent tank 12 and the cover-type liquid spray nozzle 20 is directly activated to spray the special extinguishing agent in the solenoid valve 24 through the cover-type liquid spray nozzle 20 from the upper side of the energy storage container 10 to quickly and fully extinguish the fire.

[0025] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A containerized energy storage system with fire-fighting capabilities, characterized in that, The system includes an energy storage container (10), with a base (11) fixedly installed at the bottom. The energy storage container (10) is equipped with a battery system, a power conversion system (PCS), a battery management system (BMS), and a thermal management system. Multiple sets of reinforcing columns (17) are symmetrically installed on both sides inside the energy storage container (10). Multiple foam nozzles (18) are evenly spaced along the vertical direction on the reinforcing columns (17). The inner ends of the foam nozzles (18) are connected to a conductive pipe opened inside the reinforcing column (17). The transmission pipe moves outward through the wall of the energy storage container (10) and is connected to the transmission pipe (15). The bottom end of the transmission pipe (15) is connected to the foam extinguishing agent bottle (13) fixed on the top of the container base (11). Two sets of covered liquid spray nozzles (20) are symmetrically arranged on both sides of the top of the energy storage container (10). The top of the covered liquid spray nozzles (20) is connected to a special extinguishing agent tank (12) installed on the outside of the top of the energy storage container (10). Multiple sets of open flame detectors (19) and temperature sensors are evenly installed on the inner wall of the energy storage container (10).

2. The containerized energy storage system with fire-fighting function according to claim 1, characterized in that, The reinforcing column (17) is made of metal heat insulation material, and the bottom end of the reinforcing column (17) extends into the interior of the box base (11) and is fixedly connected thereto.

3. The containerized energy storage system with fire-fighting function according to claim 2, characterized in that, The transmission pipe (15) is equipped with an electric control valve (14) for controlling the output of foam extinguishing agent inside the foam extinguishing agent bottle (13). The connection between the covered liquid spray nozzle (20) and the special extinguishing agent tank (12) is equipped with a solenoid valve (24) for controlling the transmission of the special extinguishing agent liquid in the special extinguishing agent tank (12) toward the covered liquid spray nozzle (20). The electric control valve (14), the solenoid valve (24), the open flame detector (19), and the temperature sensor are all electrically connected to the thermal management system.

4. The containerized energy storage system with fire-fighting function according to claim 3, characterized in that, The open flame detector (19) includes a flame detector and an open flame detector.

5. The containerized energy storage system with fire-fighting function according to claim 4, characterized in that, The covered liquid spray nozzle (20) has multiple nozzles (23) evenly distributed inside. A V-shaped guide plate (22) is provided on the top of the nozzle (23). A connecting pipe (21) is connected to the top middle of the V-shaped guide plate (22). The top of the connecting pipe (21) is connected to the bottom middle of the special fire extinguishing agent tank (12). A solenoid valve (24) is installed on the connecting pipe (21).

6. The containerized energy storage system with fire-fighting function according to claim 5, characterized in that, An insulating board (25) is installed between the bottom of the special fire extinguishing agent tank (12) and the energy storage container (10).

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