Energy storage battery cabin water spraying system and energy storage container

Abstract

The embodiment of the invention provides an energy storage battery compartment water spraying system and an energy storage container. The system comprises a water conveying pipeline and a water conveying device, and the water conveying pipeline communicates with the water conveying device; the water conveying pipeline is communicated with the at least one open type spraying head and the at least one closed type spraying head, the closed type spraying head comprises a temperature sensing element and a locking device, and the temperature sensing element is used for detecting the environment temperature of the environment where the closed type spraying head is located and controlling the locking device to be unlocked when it is detected that the environment temperature is larger than or equal to a preset temperature threshold value; the water conveying device is used for conveying water to the water conveying pipeline so that the open type spraying head and the closed type spraying head of the unlocking and locking device can spray water. The open type spray header and the closed type spray header are arranged at the same time, the closed type spray header can spray and extinguish fire when the open type spray header is blocked, and the open type spray header can spray and extinguish fire when the closed type spray header does not sense enough temperature change and cannot start spraying. The double-guarantee mechanism improves the reliability of the fire extinguishing system for the water in the energy storage battery cabin.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage battery compartments, and in particular to an energy storage battery compartment water spray system and an energy storage container. Background Art

[0002] Batteries, as the core components of electrochemical energy storage in energy storage compartments, carry a significant risk of thermal runaway. When thermal runaway occurs, a large amount of heat is instantly released, rapidly spreading to adjacent cells and triggering widespread thermal runaway in the battery pack, potentially causing serious fires or explosions. From a safety perspective, effective fire prevention measures for batteries are crucial to effectively control and address the fire and explosion risks associated with thermal runaway.

[0003] When a fire occurs in the energy storage battery compartment, the fire alarm control unit activates the water sprinkler fire extinguishing system, cooling the entire compartment and extinguishing the fire. The water sprinkler fire extinguishing system includes a water sprinkler nozzle installed on the top of the energy storage battery compartment. The water sprinkler nozzle is connected to the external fire protection network through a water fire interface installed on the wall of the energy storage battery compartment. The water sprinkler nozzles currently used in energy storage battery compartments are divided into open sprinkler heads and closed sprinkler heads. Open sprinkler heads do not have temperature sensors or locking devices and are in the normally open state. When a fire occurs, all open sprinkler heads within the system protection zone where the fire is located will discharge water to extinguish the fire. Closed sprinkler heads, on the other hand, are equipped with temperature sensors and locking devices and will only activate when the preset temperature is reached.

[0004] However, existing water sprinkler fire extinguishing devices use a single open sprinkler head or closed sprinkler head. For open sprinkler heads, due to environmental reasons, the open sprinkler head may be in a humid environment for a long time, which will cause water vapor in the environment to enter the pipeline through the sprinkler head, resulting in rust. This rusting phenomenon not only affects the service life of the pipeline, but in severe cases may also cause the sprinkler head to be blocked; for closed sprinkler heads, most of the currently used are suspended temperature-sensing sprinkler heads. When a battery cell in the battery pack becomes hot or catches fire, the heat energy may be concentrated in a specific area of ​​the battery pack instead of being evenly distributed. This causes the sprinkler head far away from the fire point to be unable to sense sufficient temperature changes to start spraying. In this case, the fire may spread without being detected, increasing the risk of the fire getting out of control. Summary of the Invention

[0005] The embodiments of the present application provide an energy storage battery compartment water sprinkler system and an energy storage container, which are used to solve the technical problems that existing water sprinkler fire extinguishing devices use a single open sprinkler head or a closed sprinkler head, wherein the open sprinkler head may be clogged due to rust after long-term use, and the closed sprinkler head may not be able to sense sufficient temperature changes to start spraying when far away from the fire point.

[0006] In a first aspect, an embodiment of the present application provides a water spray system for an energy storage battery compartment, the system comprising a water delivery pipeline and a water delivery device, wherein the water delivery pipeline is in communication with the water delivery device;

[0007] The water delivery pipeline is in communication with at least one open sprinkler head and at least one closed sprinkler head. The closed sprinkler head includes a temperature sensing element and a locking device. The temperature sensing element is used to detect the ambient temperature of the environment in which the closed sprinkler head is located, and to control the locking device to unlock when it is detected that the ambient temperature is greater than or equal to a preset temperature threshold.

[0008] The water delivery device is used to deliver water to the water delivery pipeline so that the open sprinkler head and the closed sprinkler head that unlocks the locking device can spray water.

[0009] In one possible design, the first connecting port connecting the closed sprinkler head to the water supply pipeline is located on the water supply pipeline close to the water supply device, and the second connecting port connecting the open sprinkler head to the water supply pipeline is located on the water supply pipeline away from the water supply device.

[0010] In a possible design, the system further includes a plurality of branch pipelines connected to the water delivery pipeline, each of the branch pipelines being connected to a plurality of the closed sprinkler heads;

[0011] The branch pipeline is connected to the water delivery pipeline through the first communication port.

[0012] In one possible design, the system further includes a control unit, a control valve, and multiple detection devices. The control valve is disposed between the first communication port and the second communication port. The detection devices are disposed at different locations in the energy storage battery compartment. The control valve, the detection devices, and the closed sprinkler heads are respectively communicatively connected to the control unit.

[0013] The detection device is configured to send a first alarm message to the control unit when a fire is detected; the closed sprinkler head is configured to send an unlocking message to the control unit when the locking device is unlocked;

[0014] The control unit is configured to, upon receiving the first alarm information, control the control valve to open if the unlocking information is not received, so as to enable the open sprinkler head to spray water.

[0015] In one possible design, the closed sprinkler head is provided with a first sensor, and the first sensor is communicatively connected to the control unit;

[0016] The first sensor is used to detect whether the locking device is unlocked, and if so, send the unlocking information to the control unit.

[0017] In one possible design, the system is provided with a plurality of closed sprinkler heads, which are located at different positions of the energy storage battery compartment, and the detection devices and the closed sprinkler heads in the same fire protection zone are associated with each other;

[0018] The detection device is specifically configured to send the first alarm information to the control unit when a fire is detected in the fire protection zone where the detection device is located;

[0019] The control unit is specifically configured to, after receiving the first alarm information, control the control valve to open so that the open sprinkler head sprays water if the unlocking information sent by the closed sprinkler head associated with the detection device is not received.

[0020] In one possible design, the control unit is communicatively connected to the terminal, and the control unit is further used to, after receiving the first alarm message, send a first prompt message to the terminal if the unlocking message sent by the closed sprinkler head associated with the detection device is not received, and the first prompt message indicates the position of the closed sprinkler head associated with the detection device.

[0021] In one possible design, the system is further provided with a second sensor, which is communicatively connected to the control unit;

[0022] The second sensor is used to detect the water pressure of the second communication port, and if it is detected that the water pressure of the second communication port is greater than a preset water pressure threshold, a second alarm message is sent to the control unit;

[0023] The control unit is further configured to, after receiving the second alarm information, send second prompt information to the terminal, where the second prompt information indicates the location of the second communication port.

[0024] In one possible design, the detection device includes a temperature sensor, a smoke sensor, and a combustible gas sensor.

[0025] In a second aspect, an embodiment of the present application provides an energy storage container, which includes a box body, an energy storage battery compartment provided in the box body, and the energy storage battery compartment water spray system as described in the first aspect.

[0026] The energy storage battery compartment water spray system and energy storage container provided in the embodiments of the present application have the following technical effects:

[0027] By installing both open and closed sprinklers, the closed sprinklers can spray to extinguish fires if the open sprinklers become clogged. Furthermore, the open sprinklers can continue to spray to extinguish fires if the closed sprinklers fail to sense sufficient temperature changes. This dual-protection mechanism improves the reliability of the water firefighting system in the energy storage battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0029] Figure 1 Schematic diagram of the water spray system structure for the energy storage battery compartment provided in the embodiment of the present application Figure 1 ;

[0030] Figure 2 Schematic diagram of the water spray system structure for the energy storage battery compartment provided in the embodiment of the present application Figure 2 ;

[0031] Figure 3 Schematic diagram of the association between the detection device and the sprinkler head provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] 100-water pipeline;

[0034] 200-water delivery device;

[0035] 300-open sprinkler head;

[0036] 400-closed sprinkler head;

[0037] 500-first communication port;

[0038] 600- second communication port;

[0039] 700-branch pipeline;

[0040] 800-Control valve.

[0041] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0042] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0043] In response to the technical problems that existing water sprinkler fire extinguishing devices use a single open sprinkler head or a closed sprinkler head, wherein the open sprinkler head may become clogged due to rust after long-term use, and the closed sprinkler head may not be able to sense sufficient temperature changes to start spraying when far away from the fire point, the technical concept of this application is to install open sprinkler heads and closed sprinkler heads on the fire water pipeline at the same time.

[0044] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] Example 1

[0046] This embodiment provides a water spray system for an energy storage battery compartment. Figure 1 Schematic diagram of the water spray system structure for the energy storage battery compartment provided in the embodiment of the present application Figure 1 ,like Figure 1 As shown, the system includes: a water delivery pipeline 100 and a water delivery device 200, wherein the water delivery pipeline 100 is in communication with the water delivery device 200;

[0047] The water delivery pipeline 100 is connected to at least one open sprinkler head 300 and at least one closed sprinkler head 400. The closed sprinkler head 400 includes a temperature sensing element and a locking device. The temperature sensing element is used to detect the ambient temperature of the environment in which the closed sprinkler head 400 is located, and control the locking device to unlock when the ambient temperature is detected to be greater than or equal to a preset temperature threshold.

[0048] The water delivery device 200 is used to deliver water to the water delivery pipeline 100 so as to enable the open sprinkler head 300 and the closed sprinkler head 400 of the unlocked locking device to spray water.

[0049] Specifically, the water delivery device 200 may include a water delivery interface that can be connected to an external fire protection pipe network for water supply. The water delivery device 200 may also include a water pump that delivers water to the water delivery pipeline 100.

[0050] The open sprinkler head 300 automatically sprays water when receiving water pressure from the water delivery device 200. The closed sprinkler head 400's temperature sensing element can be a glass bulb or a bimetallic strip, and the locking device can be a metal cap or plug. Under normal ambient temperature, the temperature sensing element remains intact, the locking device is locked, and water cannot pass through the sprinkler head. When the ambient temperature rises to a preset temperature threshold, such as 68 degrees Celsius or higher, the glass bulb is filled with liquid. When the temperature rises, the liquid expands, causing the glass bulb to rupture. The bimetallic strip bends at high temperatures. The change in the temperature sensing element unlocks the locking device, specifically releasing the metal cap or plug. Water, driven by pipeline pressure, rushes through the sprinkler head and begins spraying.

[0051] It should be noted that because the open sprinkler head 300 lacks a locking device, it may be exposed to a humid environment for extended periods. This can cause moisture to enter the pipes through the sprinkler head, leading to rust. This rust can prevent the open sprinkler head 300 from spraying. When a battery cell in the battery pack overheats or catches fire, the heat energy may be concentrated in a specific area of ​​the battery pack rather than evenly distributed. This can cause sprinklers further away from the fire point to not sense sufficient temperature changes to initiate spraying. Therefore, the system incorporates both open sprinkler heads 300 and closed sprinkler heads 400. If the open sprinkler head 300 becomes clogged, the closed sprinkler head 400 can spray and extinguish the fire. If the closed sprinkler head 400 fails to sense sufficient temperature changes and is unable to initiate spraying, the open sprinkler head 300 can continue to spray and extinguish the fire. This dual safeguard improves the reliability of the energy storage battery compartment water firefighting system.

[0052] Furthermore, when water vapor enters the pipeline through the open sprinkler head 300, it may cause the pipeline to be blocked, so it is optional, such as Figure 1 As shown, the first communication port 500 of the closed sprinkler head 400, which communicates with the water supply pipeline 100, is located on the water supply pipeline 100 near the water supply device 200. The second communication port 600 of the open sprinkler head 300, which communicates with the water supply pipeline 100, is located on the water supply pipeline 100 away from the water supply device 200. Because the pipeline near the open sprinkler head 300 is prone to clogging, the open sprinkler head 300 is placed at the far end of the pipeline. This ensures that the use of the closed sprinkler head 400 will not be affected even if the second communication port 600 becomes clogged.

[0053] Example 2

[0054] Figure 2 Schematic diagram of the water spray system structure for the energy storage battery compartment provided in the embodiment of the present application Figure 2 ,like Figure 2As shown, the system further includes a plurality of branch pipelines 700 communicating with the water pipeline 100 , each branch pipeline 700 communicating with a plurality of closed sprinkler heads 400 , and the branch pipeline 700 communicating with the water pipeline 100 through a first communication port 500 .

[0055] By providing multiple branch lines 700, each branch line 700 can be responsible for a battery cluster in the battery compartment, and each closed sprinkler head 400 on the branch line 700 is responsible for battery-level fire extinguishing. Because the closed sprinkler heads 400 on the branch line 700 are close to the batteries, the temperature sensing elements on the closed sprinkler heads 400 can promptly detect temperature changes in the batteries and initiate spraying.

[0056] like Figure 2 As shown, the system may further include a control valve 800, which is disposed between the first connecting port 500 and the second connecting port 600. By opening and closing the control valve 800, the system may control whether the open sprinkler head 300 can spray. When the control valve 800 is opened, the water delivery device 200 may supply water to the open sprinkler head 300; when the control valve 800 is closed, the water delivery device 200 may not supply water to the open sprinkler head 300, and the open sprinkler head 300 may not spray outward.

[0057] By configuring the control valve 800, the system can close the control valve 800 when the open sprinkler head 300 is not needed. For example, if only a single battery cell is on fire, the closed sprinkler head 400 near the battery cell can be used for spraying, preventing the open sprinkler head 300 from spraying water across the entire battery compartment and affecting subsequent normal operation. If the fire is widespread within the battery compartment, the system can control the open sprinkler head 300 to spray the entire compartment.

[0058] Furthermore, the system may be provided with a control unit and a plurality of detection devices, the detection devices being provided at different positions of the energy storage battery compartment, and the control valve 800, the detection device, and the closed sprinkler head 400 being respectively communicatively connected with the control unit.

[0059] The detection device is configured to send a first alarm message to the control unit when a fire is detected; the closed sprinkler head 400 is configured to send an unlocking message to the control unit when the locking device is unlocked;

[0060] The control unit is configured to, upon receiving the first alarm message, control the control valve 800 to open if no unlocking message is received, so as to enable the open type sprinkler head 300 to spray water.

[0061] Specifically, the control unit is responsible for receiving and processing information from the detection device and the closed-type sprinkler head 400. The control unit can be composed of a microprocessor or a programmable logic controller (PLC) with multi-channel input and output interfaces to facilitate communication with other components. The control unit software requires programming of logic algorithms to make appropriate decisions based on the received information.

[0062] Detection devices are distributed in different locations in the energy storage battery compartment to detect the occurrence of fires. For example, they can be divided into battery cluster-level detection devices to detect fires in the battery cluster, and battery-level detection devices to detect fires in the battery. The detection device can be a smoke detector, temperature sensor, or combustible gas sensor, etc. The specific selection depends on the environment of the battery compartment and the possible type of fire. When the detection device detects a fire signal such as excessive smoke concentration or abnormally high temperature, it will generate a first alarm message and send it to the control unit via wired or wireless means. The wired transmission method can be serial communication methods such as RS-485 / RS-232, CAN bus, Ethernet, Modbus, and fiber optic communication, and the wireless communication method can be Wi-Fi, Zigbee, LoRa, cellular network, etc.

[0063] The control valve 800 may be a solenoid valve and is connected to the control unit via the aforementioned wired or wireless communication method. The specific workflow of the system may be:

[0064] Under normal conditions, the detection device continuously monitors the battery compartment environment, the closed sprinkler head 400 is in a locked state, and the control valve 800 is closed;

[0065] When the detection device detects fire, smoke or abnormal temperature, it immediately sends a first alarm message to the control unit;

[0066] After receiving the first alarm information, the control unit checks whether the unlocking information of the closed sprinkler head 400 is received at the same time.

[0067] If the unlocking information is received, it means that the closed sprinkler head 400 has been automatically unlocked and the system may not need further action.

[0068] If the unlocking information is not received, the control unit will send a command to open the control valve 800 so that the open sprinkler head 300 starts spraying water to extinguish the fire.

[0069] Through the above design, the system can control the open sprinkler head 300 to spray in response to a fire when the closed sprinkler head 400 is not started, and will not start the open sprinkler head 300 when the closed sprinkler head 400 is started normally, thereby avoiding the open sprinkler head 300 from spraying water to the entire battery compartment unnecessarily.

[0070] Optionally, the closed sprinkler head 400 may be provided with a first sensor that is in communication with the control unit. The first sensor detects whether the locking device is unlocked. If the locking device is unlocked, the first sensor sends an unlocking message to the control unit, thereby accurately detecting whether the closed sprinkler head 400 is unlocked through the first sensor. Specifically, the first sensor may be implemented in the following manner:

[0071] First, the first sensor can be a mechanical switch sensor, such as a micro switch or a limit switch. A micro switch can be installed next to the locking device. When the locking device is locked, the micro switch is pressed or held in a certain position. When the locking device is unlocked, for example, when a metal cover or plug is removed, the micro switch rebounds or changes position, thereby changing the circuit state. A limit switch is similar to a micro switch and can be installed in the path of the locking device to detect changes in its position.

[0072] Second, the first sensor can be a magnetic sensor, such as a Hall effect sensor or a reed switch. A Hall effect sensor can be specifically a small magnet mounted on the locking mechanism, which is then mounted on the sprinkler head body. When the locking mechanism is locked, the magnet aligns with the sensor. When unlocked, the magnet's position changes, and the Hall effect sensor detects the change in magnetic field and sends a signal. A reed switch utilizes a combination of a magnet and a reed switch. The reed switch closes in the presence of a magnetic field and opens in the absence of the magnetic field.

[0073] 3. The first sensor can be a photoelectric sensor, such as a reflective or through-beam photoelectric sensor. Specifically, a reflective photoelectric sensor operates by installing reflective material on the locking mechanism. The sensor emits a light beam and detects the reflected light. When the locking mechanism is unlocked, the reflected light path is interrupted, and the sensor detects the change. A through-beam photoelectric sensor, on the other hand, has a transmitter and receiver mounted on either side of the locking mechanism. When the locking mechanism is locked, the light beam is blocked. When unlocked, the light beam passes through, and the sensor detects the signal change.

[0074] Example 3

[0075] Figure 3 This is a schematic diagram of the association between the detection device and the sprinkler head provided in the embodiment of the present application. Figure 3 Three fire zones are set up in the system, and each fire zone is provided with a detection device and a closed sprinkler head 400. The setting of the fire zones, the number of detection devices and closed sprinkler heads 400 in each fire zone can be determined according to actual conditions. Each detection device is in communication with the control unit.

[0076] Specifically, such as Figure 3As shown, a plurality of closed sprinkler heads 400 are provided, and the detection devices and closed sprinkler heads 400 in the same fire protection zone are associated with each other;

[0077] The detection device is specifically configured to send a first alarm message to the control unit when a fire is detected in the fire protection zone where the detection device is located;

[0078] The control unit is specifically configured to, after receiving the first alarm information, control the control valve 800 to open so that the open sprinkler head 300 sprays water if the unlocking information sent by the closed sprinkler head 400 associated with the detection device is not received.

[0079] Specifically, each detection device and closed sprinkler head 400 within each fire zone can be assigned a unique identifier (ID). These device IDs are logically associated within the system, and this association can be achieved through software configuration or hardware settings such as DIP switches. A mapping table or database can be created within the control unit's software to record the ID of each detection device and its associated closed sprinkler head 400. This mapping can be loaded via a configuration file during system initialization or manually configured through the user interface.

[0080] Through the above design, the control unit can more accurately determine which area's closed sprinkler head 400 is not activated.

[0081] Furthermore, the control unit can be communicatively connected to the terminal. After receiving the first alarm message, if the control unit does not receive the unlocking message sent by the closed sprinkler head 400 associated with the detection device, the control unit sends a first prompt message to the terminal, where the first prompt message indicates the location of the closed sprinkler head 400 associated with the detection device. Specifically, the control unit is connected to the terminal via wired or wireless communication. The terminal can be a computer in a central monitoring room, an operator's mobile device such as a smartphone or tablet, or an on-site display screen.

[0082] When the detection device detects a fire and sends a first alarm message to the control unit, the control unit immediately checks the status of the closed sprinkler head 400 associated with the detection device. If the control unit does not receive the unlocking information for the closed sprinkler head 400, it indicates that the closed sprinkler head 400 has failed to automatically unlock. At this point, the control unit generates a first prompt message, which includes the location of the closed sprinkler head 400 associated with the detection device and the possible cause of the failure. The control unit may record the specific location of the closed sprinkler head 400 associated with the detection device in the aforementioned mapping table or database. The control unit then sends the first prompt message to the terminal via the communication network. Upon receiving the first prompt message, the terminal immediately displays the relevant information on the screen, possibly accompanied by an audible and visual alarm, to attract the operator's attention. Based on the prompt message, the operator can quickly locate the problem area and take necessary manual intervention measures, such as checking the physical condition of the sprinkler head or activating the backup fire extinguishing system.

[0083] Therefore, through this design, the system can inform the staff of the location of the closed sprinkler head 400 that failed to be unlocked successfully, which facilitates the staff to subsequently maintain the closed sprinkler head 400 with the problem.

[0084] Optionally, the system is further provided with a second sensor, which is communicatively connected to the control unit;

[0085] The second sensor is used to detect the water pressure of the second communication port 600, and if it is detected that the water pressure of the second communication port 600 is greater than the preset water pressure threshold, a second alarm message is sent to the control unit;

[0086] The control unit is further configured to, after receiving the second alarm information, send a second prompt information to the terminal, where the second prompt information indicates the location of the second communication port 600 .

[0087] The second sensor can be a pressure sensor that monitors water pressure in real time and converts it into an electrical signal. The second sensor is installed at the second communication port 600 to directly measure the water pressure at that location. The second sensor must be able to communicate with the control unit, either via an analog signal such as a 4-20mA current loop or a digital signal such as RS-485 or Modbus.

[0088] During use, the second sensor continuously monitors the water pressure of the second communication port 600 and transmits real-time data to the control unit. The control unit converts the second alarm information into a second prompt information containing the location of the second communication port 600 and an indication of abnormal water pressure. Furthermore, the control unit transmits the second prompt information to the terminal via the communication network.

[0089] It should be noted that when the pressure at the second communication port 600 exceeds a preset water pressure threshold, it indicates a possible blockage in the pipeline there. The control unit may store a mapping table that associates different second communication ports 600 with the locations of the second sensor, thereby determining the location of the second communication port 600 based on the second alarm information. By sending the second alarm information to the terminal, staff can quickly identify the blocked open sprinkler head 300, facilitating subsequent maintenance.

[0090] An embodiment of the present application further provides an energy storage container, which includes a box body, an energy storage battery compartment provided in the box body, and the energy storage battery compartment water spray system as described in the above embodiment.

[0091] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A water spray system for an energy storage battery compartment, characterized in that: The system comprises a water delivery pipeline (100) and a water delivery device (200), wherein the water delivery pipeline (100) is in communication with the water delivery device (200); The water delivery pipeline (100) is in communication with at least one open sprinkler head (300) and at least one closed sprinkler head (400), wherein the closed sprinkler head (400) comprises a temperature sensing element and a locking device, wherein the temperature sensing element is used to detect the ambient temperature of the environment in which the closed sprinkler head (400) is located, and to control the locking device to unlock when the ambient temperature is detected to be greater than or equal to a preset temperature threshold; The water delivery device (200) is used to deliver water to the water delivery pipeline (100) so as to enable the open sprinkler head (300) and the closed sprinkler head (400) that unlocks the locking device to spray water.

2. The system according to claim 1, wherein: The first communication port (500) through which the closed sprinkler head (400) communicates with the water supply pipeline (100) is located on the water supply pipeline (100) at a position close to the water supply device (200), and the second communication port (600) through which the open sprinkler head (300) communicates with the water supply pipeline (100) is located on the water supply pipeline (100) at a position away from the water supply device (200).

3. The system according to claim 2, characterized in that The system further comprises a plurality of branch pipelines (700) in communication with the water delivery pipeline (100), each of the branch pipelines (700) being in communication with a plurality of the closed sprinkler heads (400); The branch pipeline (700) is connected to the water delivery pipeline (100) through the first communication port (500).

4. The system according to claim 2, wherein: The system further comprises a control unit, a control valve (800), and a plurality of detection devices, wherein the control valve (800) is arranged between the first communication port (500) and the second communication port (600), and the detection devices are arranged at different positions of the energy storage battery compartment, and the control valve (800), the detection devices, and the closed sprinkler head (400) are respectively connected to the control unit for communication; The detection device is used to send a first alarm message to the control unit when a fire is detected; the closed sprinkler head (400) is configured to send an unlocking message to the control unit when the locking device is unlocked; The control unit is configured to, when receiving the first alarm information, control the control valve (800) to open if the unlocking information is not received, so as to enable the open sprinkler head (300) to spray water.

5. The system according to claim 4, characterized in that The closed sprinkler head (400) is provided with a first sensor, and the first sensor is in communication connection with the control unit; The first sensor is used to detect whether the locking device is unlocked, and if so, send the unlocking information to the control unit.

6. The system according to claim 4, characterized in that The system is provided with a plurality of closed sprinkler heads (400), the closed sprinkler heads (400) being arranged at different positions in the energy storage battery compartment, and the detection devices and the closed sprinkler heads (400) in the same fire protection zone are associated with each other; The detection device is specifically configured to send the first alarm information to the control unit when a fire is detected in the fire protection zone where the detection device is located; The control unit is specifically configured to, after receiving the first alarm information, control the control valve (800) to open if the unlocking information sent by the closed sprinkler head (400) associated with the detection device is not received, so as to enable the open sprinkler head (300) to spray water.

7. The system according to claim 6, characterized in that The control unit is communicatively connected to the terminal, and the control unit is further configured to, after receiving the first alarm message, send a first prompt message to the terminal if the unlocking message sent by the closed sprinkler head (400) associated with the detection device is not received, wherein the first prompt message indicates the position of the closed sprinkler head (400) associated with the detection device.

8. The system according to claim 7, characterized in that The system is further provided with a second sensor, which is communicatively connected to the control unit; The second sensor is used to detect the water pressure of the second communication port (600), and if it is detected that the water pressure of the second communication port (600) is greater than a preset water pressure threshold, a second alarm message is sent to the control unit; The control unit is further configured to, after receiving the second alarm information, send a second prompt information to the terminal, wherein the second prompt information indicates the location of the second communication port (600).

9. The system according to any one of claims 4 to 8, characterized in that: The detection device includes a temperature sensor, a smoke sensor, and a combustible gas sensor.

10. An energy storage container, characterized in that: The energy storage container includes a box body, an energy storage battery compartment and an energy storage battery compartment water spray system as described in any one of claims 1 to 9 are provided in the box body.

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