Energy storage container and fire control method of energy storage container

Abstract

The invention provides an energy storage container and a fire control method of the energy storage container, the energy storage container comprises a box body, the box body is provided with a plurality of battery cabins, and a battery cluster is correspondingly configured in each battery cabin; a fire-fighting control system is arranged in each battery cabin and comprises a fire detection device and a fire-fighting device; the fire detection devices are used for detecting fire information of the battery clusters in the corresponding battery cabins and sending the fire information to the controller of the fire control system; the controller is used for sending a fire extinguishing instruction to the fire-fighting device according to the fire information; the fire-fighting device is used for responding to the fire-fighting fire-extinguishing instruction to prevent a fire from occurring in the box body. The battery cluster-level fire extinguishing is realized, so that the fire extinguishing is more accurate and efficient, the safety and reliability of the whole energy storage container are improved, the energy storage container is prevented from being separated from a power grid to the greatest extent, and the overall working efficiency and reaction efficiency of the energy storage container are improved.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to an energy storage container and a fire protection control method for the energy storage container. Background Art

[0002] With the development of smart grid construction, the demand for battery energy storage continues to increase. Energy storage containers are widely used. Due to the limitations of energy density and space, energy storage containers are generally arranged relatively closely, and there is no staff to monitor the working status in the energy storage containers in real time, which is easy to cause fire and explosion accidents. Therefore, providing an energy storage container with a fire control function is of great significance to ensure the safe operation of energy storage containers.

[0003] In the related art, the fire control strategy of the energy storage container is usually to directly cut off the high-voltage power supply of the entire battery compartment to achieve fire extinguishing when a battery pack or a cluster of battery packs is detected to have thermal runaway. This one-size-fits-all fire extinguishing strategy will cause the energy storage container to fail to work normally, reducing the overall working efficiency and response efficiency of the energy storage container. Summary of the invention

[0004] The embodiments of the present invention provide an energy storage container and a fire control method for the energy storage container, which can ensure the fire safety of the energy storage container and improve the overall working efficiency and response efficiency of the energy storage container.

[0005] In a first aspect, an embodiment of the present invention provides an energy storage container, the energy storage container comprising a box body, the box body being provided with N battery compartments, each battery compartment being correspondingly provided with a battery cluster, and N being a natural number greater than 1;

[0006] Each of the battery compartments is equipped with a fire control system, which includes a fire detection device and a fire fighting device;

[0007] The fire detection device is used to detect fire information of the battery cluster in the corresponding battery compartment and send the fire information to the controller of the fire control system;

[0008] The controller is used to send a fire extinguishing instruction to the fire fighting device according to the fire information;

[0009] The fire-fighting device is used to respond to the fire-fighting extinguishing instruction to prevent a fire from occurring in the box.

[0010] In a second aspect, an embodiment of the present invention provides a fire control method for an energy storage container, wherein the energy storage container includes a box body, wherein the box body is provided with N battery compartments, wherein each battery compartment is correspondingly provided with a battery cluster, and N is a natural number greater than 1; the fire control method for the energy storage container includes:

[0011] Obtain fire information of battery clusters in each battery compartment;

[0012] According to the fire information of each battery cluster, determine the corresponding fire level;

[0013] According to the fire level, a fire control strategy corresponding to the fire level is adopted to perform fire control on the battery cluster.

[0014] In a third aspect, an embodiment of the present invention provides a fire control device for the energy storage container, wherein the energy storage container comprises a box body, wherein the box body is provided with N battery compartments, wherein each battery compartment is correspondingly provided with a battery cluster, wherein N is a natural number greater than 1, and wherein the fire control device for the energy storage container comprises:

[0015] An acquisition module, used to acquire fire information of battery clusters in each battery compartment;

[0016] A determination module, used to determine the fire level corresponding to each battery cluster according to the fire information of each battery cluster;

[0017] The fire control module is used to perform fire control on the battery cluster according to the fire level by adopting a fire control strategy corresponding to the fire level.

[0018] In a fourth aspect, an embodiment of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps in the fire control method for the energy storage container are implemented.

[0019] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the fire control method of the energy storage container are implemented.

[0020] In a sixth aspect, an embodiment of the present invention provides a computer program product, including a computer program / instruction, which, when executed by a processor, is used to execute the steps in the fire control method for the energy storage container.

[0021] Beneficial effects of the embodiments of the present invention:

[0022] In the embodiments of the present invention, each battery cluster in the energy storage container is independently controlled and data interconnected, thereby realizing fire fighting at the battery cluster level, making fire fighting more accurate and efficient. Each battery compartment has a corresponding fire control system, and fire fighting is performed according to the fire situation of each battery cluster, thereby improving the safety and reliability of the entire energy storage container. There is no need to cut off the high-voltage power supply of all battery compartments, thereby minimizing the need for the energy storage container to be disconnected from the power grid and improving the overall working efficiency and reaction efficiency of the energy storage container. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a structural schematic diagram of an energy storage container provided by an embodiment of the present invention;

[0025] Figure 2 is a top view of a box with 10 battery compartments provided in an embodiment of the present application;

[0026] Figure 3 It is a schematic flow chart of an embodiment of a fire control method for an energy storage container provided in an embodiment of the present application;

[0027] Figure 4 is a flow chart of the fire control process of the energy storage container provided in the embodiment of the present application;

[0028] Figure 5 It is a schematic structural diagram of an embodiment of a fire control device for an energy storage container provided in an embodiment of the present application;

[0029] Figure 6 It is a schematic diagram of the structure of an embodiment of an electronic device provided in the embodiments of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings 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 in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device.

[0031] like Figure 1 As shown, it is a structural schematic diagram of an energy storage container in an embodiment of the present application. The energy storage container includes a box body, and the box body is provided with N battery compartments 110. A battery cluster 120 is correspondingly configured in each battery compartment, and N is a natural number greater than 1.

[0032] Among them, each of the N battery compartments 110 in the energy storage container is provided with a battery cluster 120 in a one-to-one correspondence, so that each battery cluster is located in an independent space. The battery clusters can be arranged side by side or in parallel, and the battery clusters 120 are independent of each other, that is, each battery cluster is in its own space. The cabinet of each independent battery cluster 120 is covered with heat-insulating and fire-proof materials, so that the fire in a single battery cluster is not easy to spread to other battery clusters. Each battery cluster is connected to the outside (such as a junction cabinet) by a through-cabin component, and the material of the through-cabin component can be a material with an IP68 protection grade, so that each battery cluster is in an independent and enclosed space.

[0033] In this embodiment, a battery cluster is correspondingly configured in each battery compartment, so that targeted management of a single battery cluster can be achieved. At the same time, since each battery cluster is in an independent and enclosed space, the probability of fire spreading is reduced.

[0034] It should be noted that each battery compartment corresponds to a battery compartment identifier, such as 1, 2, 3, etc., for distinguishing each battery compartment. Accordingly, the battery cluster is configured with a corresponding battery cluster identifier, such as A1, A2, A3, etc., for distinguishing each battery cluster.

[0035] Each battery compartment is equipped with a fire control system 130, and the fire control system 130 includes a fire detection device 1301 and a fire fighting device 1302; the fire detection device 1301 is used to detect the fire information of the battery cluster in the corresponding battery compartment 110, and send the fire information to the controller 140 of the fire control system 130. The fire detection device 1301 and the fire fighting device 1302 can be installed on the top of the battery compartment.

[0036] Each battery cluster is equipped with a fire control system 130 for performing fire control management on the corresponding battery cluster to ensure the fire safety of each battery cluster.

[0037] Specifically, N fire control systems 130 are correspondingly arranged in the energy storage container, and the N fire control systems 130 are all connected to the controller in communication. The fire control system 130 includes a fire detection device 1301 and a fire fighting device 1302. The fire detection device 1301 is used to detect the fire information of the battery compartment 110, and the fire fighting device 1302 is used to perform fire control processing on the battery compartment 110, such as fire extinguishing and / or alarm. Each fire detection device 1301 and fire fighting device 1302 corresponds to an identifier, so that the controller can perform precise control according to the identifier of each fire detection device 1301 and the identifier of the fire fighting device 1302. The fire detection device 1301 detects the fire information of the battery cluster in the corresponding battery compartment 110, and sends the fire information to the controller 140 of the fire control system 130, so that the controller analyzes the fire situation of the corresponding battery cluster based on the received fire information and determines the fire control strategy according to the analysis results.

[0038] The controller 140 is used to send a fire extinguishing instruction to the fire fighting device 1302 according to the fire information.

[0039] Specifically, the controller 140 determines the fire situation according to the fire information, analyzes the fire situation of the corresponding battery cluster, determines the fire control strategy according to the analysis result, and sends a fire extinguishing instruction to the fire fighting device 1302 to control the fire fighting device 1302 to implement the fire control strategy to ensure the fire safety of the battery cluster.

[0040] The fire-fighting device 1302 is used to respond to the fire-fighting extinguishing instruction to prevent a fire from occurring in the box 110 .

[0041] Specifically, when the fire-fighting device 1302 receives the fire-fighting extinguishing instruction sent by the controller 140 , it activates the fire-fighting extinguishing function to perform fire-fighting extinguishing processing on the corresponding battery cluster to prevent a fire from occurring in the box 110 .

[0042] In the above-mentioned energy storage container, each battery cluster is independently controlled and data is interconnected, realizing fire fighting at the battery cluster level, making fire fighting more accurate and efficient. Each battery compartment has a corresponding fire control system, and fire fighting is carried out according to the fire situation of each battery cluster, thereby improving the safety and reliability of the entire energy storage container. There is no need to cut off the high-voltage power supply of all battery compartments, which minimizes the withdrawal of the energy storage container from the power grid and improves the overall working efficiency and response efficiency of the energy storage container.

[0043] In some embodiments, the fire detection device includes at least one of a smoke detector for detecting the smoke concentration of the battery cluster, a combustible gas detector for detecting the gas concentration of the battery cluster, and a temperature detector for detecting the temperature of the battery cluster; the fire information includes at least one of the smoke concentration, gas concentration and temperature; the controller is used to determine the fire situation of the battery cluster based on the fire information, and send a fire extinguishing instruction to the fire fighting device based on the fire situation.

[0044] Specifically, the fire detection device includes at least one of a smoke detector, a flammable gas detector and a temperature detector. The smoke detector, the flammable gas detector and the temperature detector can all be installed on the top of the battery compartment, and can more efficiently detect the smoke concentration, gas concentration and temperature, which is conducive to improving the accuracy of fire situation analysis. The controller is used to determine the fire situation of the battery cluster based on the fire information. For example, the fire situation can be divided into multiple levels according to the severity. For different levels, different fire fighting measures are selected, that is, a fire fighting instruction matching the level is sent to the corresponding fire fighting device.

[0045] In some embodiments, the fire fighting device includes a fire extinguishing module and an alarm module; the controller is used to determine the fire situation of the battery cluster according to the fire information, including: if any one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level one fire; and the alarm module is controlled to send a level one alarm signal; if any two of the smoke concentration, gas concentration and temperature are greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level two fire; and the alarm module is controlled to send a level two alarm signal and control the cutting off of the high-voltage power supply of the corresponding battery cluster; if the smoke concentration, gas concentration and temperature are all greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level three fire; and the alarm module is controlled to send a level three alarm signal and control the fire extinguishing module to start fire extinguishing.

[0046] Among them, the smoke concentration, gas concentration and temperature are equipped with corresponding thresholds, which are used to determine whether the current smoke concentration, gas concentration and temperature in the battery compartment are too high to cause thermal runaway.

[0047] Specifically, when only one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold, it indicates that the possibility of thermal runaway of the current battery cluster is small, and the fire level of the battery cluster is determined to be a first-level fire. The controller controls the alarm module to issue a first-level alarm signal to remind the user end user to pay attention to or check the battery cluster, and there is no need to cut off the high-voltage power supply of the battery cluster. When any two of the smoke concentration, gas concentration and temperature are greater than the corresponding threshold, it indicates that the possibility of thermal runaway of the current battery cluster is large, and the fire level of the battery cluster is determined to be a second-level fire; the controller controls the alarm module to issue a second-level alarm signal and actively cuts off the high-voltage power supply of the corresponding battery cluster to ensure the electrical safety of the battery cluster. When the smoke concentration, gas concentration and temperature are all greater than the corresponding threshold, it indicates that the current battery cluster has thermal runaway and may spread to other battery clusters. The fire level of the battery cluster is determined to be a third-level fire, and the alarm module is controlled to issue a third-level alarm signal, and the fire extinguishing module is controlled to start fire extinguishing, suppressing the thermal diffusion of the battery cluster and improving the safety performance of the energy storage container. It is worth noting that for a level 3 fire, when the alarm is sounded and fire extinguishing is initiated, the controller sends a prompt message that the grid of the energy storage container may be shut down, and prepares in advance for all battery clusters in all battery compartments to be shut down in sequence, so that it has sufficient reaction time to prepare for power dispatch and minimize the impact of the energy storage system's withdrawal from the grid. This improves the overall response efficiency of the energy storage container and minimizes the impact of a grid outage on users.

[0048] Understandably, energy storage containers usually play a role in regulating the frequency of the power grid. If the energy storage container suddenly loses power, the frequency of the power grid may change. In addition, energy storage containers usually have a backup power supply function, which can provide power when the main power supply is interrupted. If the energy storage container suddenly loses power, it may cause the power grid to be unable to restore power supply in a short period of time, affecting the normal power consumption of users. In this embodiment, the fire alarm level is divided into three levels, and corresponding fire fighting measures are adopted respectively. When a secondary fire occurs in the battery cluster, only the high-voltage power supply of the battery cluster is cut off, and other battery clusters are not affected (when the fire does not spread to other clusters). In this way, the overall power change of the energy storage container is not large, which is beneficial to ensure the stability and reliability of the power grid compared to (compared with cutting off the high-voltage power supply of all clusters. At the same time, the control logic of hierarchical processing is adopted, and the battery cluster where no fire occurs will not start the aerosol fire extinguishing unit, reducing unnecessary waste of aerosol. In some embodiments, the fire extinguishing module includes at least one of a gas fire extinguishing unit, a water sprinkler fire extinguishing unit, a dry powder fire extinguishing unit and an aerosol fire extinguishing unit; when the fire extinguishing module is an aerosol fire extinguishing unit, controlling the fire extinguishing module to start the fire extinguishing includes: sending a spraying instruction to the aerosol fire extinguishing unit, so that the aerosol fire extinguishing unit sprays aerosol to the corresponding battery cluster according to the spraying instruction to achieve fire extinguishing of the battery cluster.

[0049] Among them, the gas fire extinguishing unit reduces the oxygen concentration in the space by releasing inert gas or chemical gas (such as heptafluoropropane, perfluorohexanone, etc.), thereby suppressing the combustion of the fire source. This fire extinguishing unit has the advantage of rapid response and can quickly fill the interior of the container to suppress the fire. However, the gas fire extinguishing system mainly controls the fire by reducing oxygen, and it is difficult to effectively control the temperature. Flammable equipment such as batteries may cause fire again due to excessive temperature. Certain chemical gases may generate corrosive compounds at high temperatures, affecting the long-term operation of the equipment. In addition, the gas fire extinguishing system needs to be equipped with a separate fire room to place the fire cylinders, and the gas spraying pipeline takes up a lot of space, reducing the space utilization rate of the energy storage container.

[0050] The water sprinkler fire extinguishing unit cools the fire source, slows down the spread of the fire, and eventually extinguishes the flames by spraying water or foam. This fire extinguishing unit performs well in temperature control, is suitable for high temperature environments, and has low installation and maintenance costs. However, the water or foam in the sprinkler system can cause great damage to sensitive equipment such as batteries and power electronic components, and can easily cause problems such as short circuits and corrosion.

[0051] The dry powder fire extinguishing unit suppresses the burning of the fire source by releasing dry powder fire extinguishing agent to isolate oxygen and heat. The fire extinguishing unit can quickly suppress the combustion chain reaction and has a significant fire extinguishing effect. However, the dry powder fire extinguishing agent will remain on the surface of the equipment after release, posing a risk of contamination and corrosion to precision electronic components. After the fire is extinguished, the residual dry powder is difficult to clean thoroughly, causing inconvenience to subsequent equipment maintenance and inspection work.

[0052] Aerosol fire suppression units work by releasing aerosol particles into the air, rapidly suppressing flames by cutting off oxygen and interrupting the combustion chain reaction.

[0053] Specifically, the fire extinguishing module in this embodiment preferably uses an aerosol fire extinguishing unit, which solves the problems caused by the current fire extinguishing methods of energy storage containers (gas fire extinguishing, dry powder fire extinguishing), such as reduced space utilization, easy pollution and corrosion to electrical equipment, complex equipment maintenance, and difficult cleaning of residues; and because the aerosol does not require pipelines for spraying, the complexity of the connection between the battery compartment and the outside is reduced.

[0054] Furthermore, since the energy storage container of the present application is a battery cluster located in a battery compartment, it is only necessary to activate the aerosol fire extinguishing unit in the corresponding battery compartment when thermal runaway occurs. For the scenario where all battery clusters are located in one battery compartment, it is necessary to activate all aerosol fire extinguishing units in the battery compartment space at the same time, which will reduce the aerosol utilization rate. It can be seen that in this embodiment, by setting an aerosol fire extinguishing unit in each battery compartment, the fire extinguishing effect is improved, and the amount of aerosol is greatly reduced, saving costs.

[0055] In some embodiments, after the fire extinguishing module is controlled to start fire extinguishing, the controller is also used to continue to analyze the fire information detected by each fire detection device to detect whether the fire spreads in the box; if the fire spreads, the controller continues to send fire extinguishing instructions to the fire extinguishing device according to the fire situation; the fire fighting device continues to respond to the fire extinguishing instruction to prevent the occurrence of fire in the box; if the fire does not spread, it is determined that the fire of the corresponding battery cluster is extinguished.

[0056] Specifically, after the aerosol fire extinguishing unit sprays aerosol to the corresponding battery cluster and extinguishes the fire of each battery cluster with a third-level fire, the controller continues to analyze the fire information detected by each fire detection device to detect whether a fire spreads inside the box, wherein the fire level of the battery cluster can be determined to be level two or level three by comparing the smoke concentration, gas concentration and temperature with the corresponding threshold value in the above embodiment, and the fire spread is determined. When the fire spread is detected, the controller continues to send a fire extinguishing instruction to the fire extinguishing device according to the fire situation, and the fire extinguishing device continues to respond to the fire extinguishing instruction. For example, the controller controls the alarm module to send a second-level alarm signal and actively cuts off the high-voltage power supply of the corresponding battery cluster, or controls the alarm module to send a third-level alarm signal and controls the fire extinguishing module to start the fire extinguishing to suppress the heat diffusion of the battery cluster. When it is detected that no fire spread occurs, it is determined that the fire of the corresponding battery cluster is extinguished, and there is no need to extinguish the fire, which further ensures the safety of the energy storage container.

[0057] In some embodiments, the fire fighting device further includes a water sprinkler system, and the water sprinkler system 1303 is communicatively connected to the controller; the controller is further configured to send a spraying instruction to the water sprinkler system when it is detected that the fire of the corresponding battery cluster has been extinguished and the fire has reignited after the aerosol release is completed;

[0058] The water spray system is used to spray emergency water to the corresponding battery cluster in response to the spraying instruction of the controller to extinguish the fire.

[0059] Among them, the water sprinkler system includes interconnected fire water interfaces and sprinklers, which can be installed on the top of each battery compartment to extinguish re-ignited fires.

[0060] Specifically, after the controller determines that the fire of the corresponding battery cluster has been extinguished, if it is detected that the fire re-ignites when the aerosol release is completed, the detection method can be to determine that the fire level of the battery cluster is level 2 or 3 by comparing the smoke concentration, gas concentration and temperature with the corresponding thresholds in the above embodiment, and determine that the fire re-ignites, then the water sprinkler system responds to the spraying instruction of the controller and sprays emergency water to the corresponding battery cluster to extinguish the fire. This further improves the fire-fighting effect of the energy storage container and ensures the safe and reliable operation of the power grid of the energy storage container.

[0061] In some embodiments, the fire-fighting device also includes an exhaust system, which is communicatively connected to the controller; the controller is further used to send an exhaust instruction to the exhaust system when the controller detects that the smoke concentration and temperature of the battery cluster are less than or equal to the corresponding threshold value and the gas concentration is greater than the corresponding concentration threshold value; the exhaust system is used to discharge air to the corresponding battery cluster in response to the exhaust instruction of the controller to reduce the gas concentration in the battery cluster to the corresponding threshold range.

[0062] The exhaust system may be an exhaust fan, which may be installed on the top of each battery compartment to reduce the concentration of combustible gas in the battery compartment. Figure 2 Shown is a top view of a box with 10 battery compartments.

[0063] Specifically, when the controller detects that only the gas concentration is greater than the corresponding threshold, that is, when the fire level of the battery cluster is a level one fire, it starts the exhaust system until the gas concentration is reduced to within the threshold range, that is, the gas concentration is less than the corresponding threshold, thereby improving the fire control effect of the battery compartment.

[0064] like Figure 3 As shown, the embodiment of the present application also provides a fire control method for an energy storage container, and the fire control method of the energy storage container is applied to Figure 1 The energy storage container controller shown in the figure. The energy storage container includes a box body, the box body is provided with N battery compartments, each battery compartment is correspondingly configured with a battery cluster, N is a natural number greater than 1, and the fire control method of the energy storage container includes:

[0065] S101, obtaining fire information of battery clusters in each battery compartment;

[0066] S102. Sending a fire extinguishing instruction to a fire fighting device in each battery compartment according to the fire information of each battery cluster, so that the fire fighting device is used to respond to the fire extinguishing instruction to prevent a fire from occurring in the compartment.

[0067] Specifically, fire information of the battery clusters in each battery compartment is obtained, such as at least one of the smoke concentration, gas concentration and temperature. Then, according to the fire information of each battery cluster, a fire-fighting instruction is sent to the fire-fighting device in each of the battery compartments, so that the fire-fighting device is used to respond to the fire-fighting instruction to prevent fire in the box, thereby realizing fire control according to the fire information and ensuring the safe and efficient operation of the energy storage container.

[0068] In some embodiments, the fire information includes at least one of smoke concentration, gas concentration and temperature, and according to the fire information of each battery cluster, a fire extinguishing instruction is sent to the fire-fighting device in each battery compartment; so that the fire-fighting device is used to respond to the fire-fighting instruction to prevent a fire in the box, including: if any one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level one fire, and a level one alarm signal is issued; if any two of the smoke concentration, gas concentration and temperature are greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level two fire, a level two alarm signal is issued, and the high-voltage power supply of the corresponding battery cluster is controlled to be cut off; if the smoke concentration, gas concentration and temperature are all greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a level three fire, the alarm module is controlled to issue a level three alarm signal, and the fire extinguishing module is controlled to start fire extinguishing.

[0069] Specifically, when only one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold value, it indicates that the possibility of thermal runaway of the current battery cluster is small, and the fire level of the battery cluster is determined to be a level one fire; when any two of the smoke concentration, gas concentration and temperature are greater than the corresponding threshold value, it indicates that the possibility of thermal runaway of the current battery cluster is high, and the fire level of the battery cluster is determined to be a level two fire; the controller controls the alarm module to send a level two alarm signal; when the smoke concentration, gas concentration and temperature are all greater than the corresponding threshold value, it indicates that the current battery cluster has thermal runaway and may spread to other battery clusters, and the fire level of the battery cluster is determined to be a level three fire, thereby achieving refined and comprehensive detection of thermal runaway of the battery cluster and ensuring the accuracy of fire level classification.

[0070] In some embodiments, a fire extinguishing module is provided in each battery compartment; according to the fire level, a fire control strategy corresponding to the fire level is adopted to perform fire control on the battery cluster, including: if the fire level is a level 1 fire, a level 1 alarm signal is issued; if the fire level is a level 2 fire, a level 2 alarm signal is issued, and the high voltage power supply of the corresponding battery cluster is cut off; if the fire level is a level 3 fire, the alarm module is controlled to issue a level 3 alarm signal, and the fire extinguishing module is controlled to start fire extinguishing.

[0071] Specifically, if the fire level is level one, the corresponding fire control strategy is: send out a level one alarm signal; if the fire level is level two, the corresponding fire control strategy is: send out a level two alarm signal, and control to cut off the high-voltage power supply of the corresponding battery cluster; if the fire level is level three, the corresponding fire control strategy is: control the alarm module to send out a level three alarm signal, and control the fire extinguishing module to start fire extinguishing, wherein the fire extinguishing module can be an aerosol fire extinguishing unit. When the aerosol of a battery cluster enters the startup state, it can be reset by an emergency stop command during the period. If no termination command is issued, the aerosol will start with a delay of 30S (adjustable time).

[0072] It can be understood that in this embodiment, by adopting the corresponding fire control error, fire extinguishing at the battery cluster level is achieved, the safety and reliability of the entire energy storage container is improved, and there is no need to cut off the high-voltage power supply of all battery compartments, which minimizes the energy storage container's withdrawal from the power grid and improves the overall working efficiency and response efficiency of the energy storage container.

[0073] In some embodiments, the method further includes: if the fire level is a level three fire, controlling the alarm module to send a level three alarm signal, and controlling the fire extinguishing module to start fire extinguishing, the method further includes: continuing to obtain fire information of battery clusters in each battery compartment; detecting whether fire spread occurs in the box based on the fire information; if fire spread occurs, determining the corresponding fire level; according to the fire level, using a fire control strategy corresponding to the fire level to perform fire control on the battery cluster; if fire spread does not occur, determining that the fire of the corresponding battery cluster is extinguished.

[0074] Specifically, after extinguishing the fire of the battery cluster with a fire level of level three, the fire information of the battery clusters in each battery compartment is continuously obtained; whether the fire spread occurs in the box is detected based on the fire information; wherein, the fire level of the battery cluster can be determined to be level two or level three by comparing the smoke concentration, gas concentration and temperature with the corresponding threshold value in the above embodiment, and the fire spread is determined. When the fire spread is detected, the controller continues to send a fire extinguishing instruction to the fire extinguishing device according to the fire situation, and the fire extinguishing device continues to respond to the fire extinguishing instruction, for example, the controller controls the alarm module to send a level two alarm signal and actively cuts off the high voltage power supply of the corresponding battery cluster, or controls the alarm module to send a level three alarm signal and controls the fire extinguishing module to start the fire extinguishing to suppress the heat diffusion of the battery cluster. When it is detected that the fire does not spread, it is determined that the fire of the corresponding battery cluster is extinguished, and there is no need to extinguish the fire, which further ensures the safety of the energy storage container. If the fire spreads, the corresponding fire level is determined; according to the fire level, the fire control strategy corresponding to the fire level is adopted to control the fire of the battery cluster; if the fire does not spread, it is determined that the fire of the corresponding battery cluster is extinguished.

[0075] In some embodiments, a water sprinkler system is also provided in the battery compartment. If the fire does not spread and it is determined that the fire in the corresponding battery cluster is extinguished, it also includes: detecting whether the fire re-ignites in the box; if the fire re-ignites, controlling the water sprinkler system to spray emergency water to the corresponding battery cluster to extinguish the fire.

[0076] Specifically, Figure 4 The figure shows a flow chart of the fire control process of the energy storage container. After the fire of the corresponding battery cluster is determined to be extinguished, if it is detected that the fire in the battery cluster reignites, the detection method can be to determine that the fire level of the battery cluster is level 2 or level 3 by comparing the smoke concentration, gas concentration and temperature with the corresponding thresholds in the above embodiment, and if it is determined that the fire reignites, the water sprinkler system is controlled to spray emergency water to the corresponding battery cluster to extinguish the fire. This further improves the fire extinguishing effect of the energy storage container and ensures the safe and reliable operation of the power grid of the energy storage container.

[0077] like Figure 5 As shown, the embodiment of the present application further provides a fire control device 200 for an energy storage container, the energy storage container includes a box body, the box body is provided with N battery compartments, each battery compartment is correspondingly configured with a battery cluster, N is a natural number greater than 1, the fire control device 200 for the energy storage container includes:

[0078] An acquisition module 201 is used to acquire fire information of battery clusters in each battery compartment;

[0079] The fire control module 202 is used to send a fire extinguishing instruction to the fire fighting device in each battery compartment according to the fire information of each battery cluster, so that the fire fighting device is used to respond to the fire extinguishing instruction to prevent fire from occurring in the box.

[0080] In one embodiment, the fire information includes at least one of smoke concentration, gas concentration and temperature, and the fire control module 202 is specifically used to:

[0081] If any one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a first-level fire, and a first-level alarm signal is issued;

[0082] If any two of the smoke concentration, gas concentration and temperature are greater than corresponding threshold values, the fire level of the battery cluster is determined to be a level 2 fire, a level 2 alarm signal is issued, and the high voltage power supply of the corresponding battery cluster is cut off;

[0083] If the smoke concentration, gas concentration and temperature are all greater than corresponding thresholds, the fire level of the battery cluster is determined to be a level three fire, the alarm module is controlled to send a level three alarm signal, and the fire extinguishing module is controlled to start fire extinguishing.

[0084] In one embodiment, the fire control device of the energy storage container further includes:

[0085] A first acquisition module, used to continue to acquire fire information of battery clusters in each battery compartment;

[0086] A first detection module, configured to detect whether a fire spreads in the box based on the fire information;

[0087] The first determination module is used to determine the corresponding fire level if a fire spreads;

[0088] A first fire control module, configured to perform fire control on the battery cluster according to the fire level by adopting a fire control strategy corresponding to the fire level;

[0089] The second fire control module is used to determine that the fire of the corresponding battery cluster is extinguished if the fire does not spread.

[0090] In one embodiment, a water sprinkler system is also provided in the battery compartment, and the fire control device of the energy storage container further includes:

[0091] A second detection module is used to detect whether the fire in the box re-ignites;

[0092] The second fire control module is used to control the water sprinkler system to spray emergency water to the corresponding battery cluster to extinguish the fire if the fire reignites.

[0093] The embodiment of the present application further provides an electronic device, which integrates any fire control device of the energy storage container provided in the embodiment of the present application, and the electronic device includes:

[0094] one or more processors;

[0095] Memory; and

[0096] One or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the processor according to any one of the above embodiments of the fire control method for the energy storage container.

[0097] The present application also provides an electronic device that integrates any of the energy storage container fire control devices provided in the present application. Figure 6 As shown, it shows a schematic diagram of the structure of the electronic device involved in the embodiment of the present application, specifically:

[0098] The electronic device may include components such as a processor 301 with one or more processing cores, a memory 302 with one or more computer-readable storage media, a power supply 303, and an input unit 304. Those skilled in the art will appreciate that Figure 6 The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0099] The processor 301 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 302, and calling data stored in the memory 302, it executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 301 may include one or more processing cores; preferably, the processor 301 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 301.

[0100] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and data processing by running the software programs and modules stored in the memory 302. The memory 302 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 302 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 302 may also include a memory controller to provide the processor 301 with access to the memory 302.

[0101] The electronic device also includes a power supply 303 for supplying power to each component. Preferably, the power supply 303 can be logically connected to the processor 301 through a power management system, so that the power management system can manage charging, discharging, power consumption and other functions. The power supply 303 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators and other arbitrary components.

[0102] The electronic device may further include an input unit 304, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0103] Although not shown, the electronic device may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 301 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 302 according to the following instructions, and the processor 301 will run the application programs stored in the memory 302, thereby realizing various functions, as follows:

[0104] Obtain fire information of battery clusters in each battery compartment;

[0105] According to the fire information of each battery cluster, a fire extinguishing instruction is sent to the fire fighting device in each battery compartment, so that the fire fighting device is used to respond to the fire extinguishing instruction to prevent a fire from occurring in the box.

[0106] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0107] To this end, an embodiment of the present application provides a computer-readable storage medium, which may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any of the fire control methods for energy storage containers provided in the embodiments of the present application. For example, the computer program may be loaded by a processor to execute the following steps:

[0108] Obtain fire information of battery clusters in each battery compartment;

[0109] According to the fire information of each battery cluster, a fire extinguishing instruction is sent to the fire fighting device in each battery compartment, so that the fire fighting device is used to respond to the fire extinguishing instruction to prevent a fire from occurring in the box.

[0110] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0111] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to be implemented as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments, which will not be repeated here.

[0112] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An energy storage container, characterized in that: The energy storage container comprises: A box body, wherein the box body is provided with N battery compartments, each battery compartment is correspondingly provided with a battery cluster, and N is a natural number greater than 1; Each of the battery compartments is equipped with a fire control system, which includes a fire detection device and a fire fighting device; The fire detection device is used to detect fire information of the battery cluster in the corresponding battery compartment and send the fire information to the controller of the fire control system; The controller is used to send a fire extinguishing instruction to the fire fighting device according to the fire information; The fire-fighting device is used to respond to the fire-fighting extinguishing instruction to prevent a fire from occurring in the box.

2. The energy storage container according to claim 1, characterized in that: The fire detection device includes at least one of a smoke detector for detecting smoke concentration of the battery cluster, a combustible gas detector for detecting gas concentration of the battery cluster, and a temperature detector for detecting temperature of the battery cluster; The fire information includes at least one of the smoke concentration, gas concentration and temperature; The controller is used to determine the fire situation of the battery cluster according to the fire information, and send a fire extinguishing instruction to the fire fighting device according to the fire situation.

3. The energy storage container according to claim 2, characterized in that: The fire fighting device includes a fire extinguishing module and an alarm module; the controller is used to determine the fire situation of the battery cluster according to the fire information, including: If any one of the smoke concentration, gas concentration and temperature is greater than a corresponding threshold value, determining that the fire level of the battery cluster is a first-level fire; and controlling the alarm module to issue a first-level alarm signal; If any two of the smoke concentration, gas concentration and temperature are greater than corresponding threshold values, the fire level of the battery cluster is determined to be a level 2 fire; and the alarm module is controlled to send a level 2 alarm signal and control the cutting off of the high voltage power supply of the corresponding battery cluster; If the smoke concentration, gas concentration and temperature are all greater than corresponding thresholds, the fire level of the battery cluster is determined to be a level 3 fire; and the alarm module is controlled to send a level 3 alarm signal, and the fire extinguishing module is controlled to start fire extinguishing.

4. The energy storage container according to claim 3, characterized in that: The fire extinguishing module includes at least one of a gas fire extinguishing unit, a water sprinkler fire extinguishing unit, a dry powder fire extinguishing unit and an aerosol fire extinguishing unit; when the fire extinguishing module is an aerosol fire extinguishing unit, controlling the fire extinguishing module to start fire extinguishing includes: A spraying instruction is sent to the aerosol fire extinguishing unit, so that the aerosol fire extinguishing unit sprays aerosol to the corresponding battery cluster according to the spraying instruction, so as to extinguish the fire of the battery cluster.

5. The energy storage container according to claim 3, characterized in that: After the fire extinguishing module is controlled to start extinguishing the fire, the controller is further used to continue analyzing the fire information detected by each fire detection device to detect whether the fire spreads inside the box; If a fire spreads, the controller continues to send a fire extinguishing instruction to the fire extinguishing device according to the fire situation; the fire extinguishing device continues to respond to the fire extinguishing instruction to prevent the fire from occurring in the box; If the fire does not spread, it is determined that the fire of the corresponding battery cluster is extinguished.

6. The energy storage container according to claim 4, characterized in that: The fire fighting device further comprises a water sprinkler system, and the water sprinkler system is communicatively connected with the controller; The controller is further configured to send a spraying instruction to the water sprinkler system when a fire re-ignites after the controller determines that the fire of the corresponding battery cluster has been extinguished and detects that the aerosol release is complete; The water spray system is used to spray emergency water to the corresponding battery cluster in response to the spraying instruction of the controller to extinguish the fire.

7. The energy storage container according to any one of claims 3 to 6, characterized in that: The fire fighting device further comprises an exhaust system, and the exhaust system is communicatively connected with the controller; The controller is further configured to send an exhaust instruction to the exhaust system when the controller detects that the smoke concentration and temperature of the battery cluster are both less than or equal to the corresponding threshold value and the gas concentration is greater than the corresponding concentration threshold value; The exhaust system is used to exhaust air to the corresponding battery cluster in response to the exhaust instruction of the controller, so as to reduce the gas concentration in the battery cluster to a corresponding threshold range.

8. A fire control method for an energy storage container, characterized in that: The energy storage container includes a box body, the box body is provided with N battery compartments, each battery compartment is correspondingly provided with a battery cluster, N is a natural number greater than 1, and the fire control method of the energy storage container includes: Obtain fire information of battery clusters in each battery compartment; According to the fire information of each battery cluster, a fire extinguishing instruction is sent to the fire fighting device in each battery compartment, so that the fire fighting device is used to respond to the fire extinguishing instruction to prevent a fire from occurring in the box.

9. The fire control method for an energy storage container according to claim 8, characterized in that: The fire information includes at least one of smoke concentration, gas concentration and temperature, and according to the fire information of each battery cluster, a fire extinguishing instruction is sent to the fire fighting device in each battery compartment; So that the fire-fighting device is used to respond to the fire-fighting extinguishing instruction to prevent a fire from occurring in the box, including: If any one of the smoke concentration, gas concentration and temperature is greater than the corresponding threshold value, the fire level of the battery cluster is determined to be a first-level fire, and a first-level alarm signal is issued; If any two of the smoke concentration, gas concentration and temperature are greater than corresponding threshold values, the fire level of the battery cluster is determined to be a level 2 fire, a level 2 alarm signal is issued, and the high voltage power supply of the corresponding battery cluster is cut off; If the smoke concentration, gas concentration and temperature are all greater than corresponding thresholds, the fire level of the battery cluster is determined to be a level three fire, the alarm module is controlled to send a level three alarm signal, and the fire extinguishing module is controlled to start fire extinguishing.

10. The fire control method for an energy storage container according to claim 9, characterized in that: If the fire level is a level three fire, after the alarm module is controlled to send a level three alarm signal, and the fire extinguishing module is controlled to start fire extinguishing, the method further includes: Continue to obtain fire information of battery clusters in each battery compartment; Detecting whether a fire spreads inside the box based on the fire information; If fire spreads, determine the corresponding fire levels; According to the fire level, using a fire control strategy corresponding to the fire level to perform fire control on the battery cluster; If the fire does not spread, it is determined that the fire of the corresponding battery cluster is extinguished.

11. The fire control method for an energy storage container according to claim 10, characterized in that: The battery compartment is also provided with a water spray system, and after the fire spread does not occur and it is determined that the fire of the corresponding battery cluster is extinguished, the system further includes: Detecting whether the fire in the box reignites; If the fire reignites, the water sprinkler system is controlled to spray emergency water to the corresponding battery cluster to extinguish the fire.

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