Energy storage system

Abstract

The utility model discloses an energy storage system, which comprises an energy storage battery cabin, an energy storage battery, an energy storage battery, an energy storage battery, a battery module and an energy storage battery module, and is characterized in that the energy storage battery cabin comprises at least one battery module; gas detectors used for at least detecting gas concentration are arranged in the energy storage battery cabin and the battery module, active nodes of the gas detectors are connected with a fire extinguishing medium pipeline through puncture valves, and the active nodes are used for opening the puncture valves to release fire extinguishing media under the condition that the gas detectors output alarm signals. The technical problem of low fire extinguishing control accuracy of the energy storage system in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular, to an energy storage system. Background Art

[0002] In the current related technologies, the detection and fire extinguishing are mostly carried out by combining combustible gas detectors with cabin-level fire extinguishing systems or cluster-level fire extinguishing systems. However, the types of combustible gas detection currently used can only detect combustible gases. In actual application scenarios, the cabin-level fire extinguishing system is used to extinguish the fire of the entire energy storage battery cabin because the fire extinguishing device is set in the energy storage battery cabin. It cannot cover the inside of each battery module. The cluster-level fire extinguishing system can spray the fire extinguishing medium on all battery modules in the entire battery cluster, which may cause other battery modules that are not thermally runaway to release the fire extinguishing medium as well, resulting in a waste of fire extinguishing resources.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Utility Model Content

[0004] The embodiment of the present application provides an energy storage system to at least solve the technical problem of low fire extinguishing control accuracy of the energy storage system in the related art.

[0005] According to one aspect of an embodiment of the present application, there is provided an energy storage system, comprising: an energy storage battery compartment, wherein the energy storage battery compartment contains at least one battery module; the energy storage battery compartment and the battery module are both provided with a gas detector for detecting at least gas concentration, and the active node of the gas detector is connected to a fire extinguishing medium pipeline through a puncture valve, wherein the active node is used to open the puncture valve to release the fire extinguishing medium when the gas detector outputs an alarm signal.

[0006] Optionally, the gas detector is connected to a plurality of communication devices respectively, and the plurality of communication devices are all connected to a fire controller for controlling the fan, and the plurality of communication devices at least include: a battery management system and a communication module.

[0007] Optionally, the fan is connected to the fire controller, and the fan is used to be turned on when the fire controller receives a primary signal in the alarm signal, and the fan is also used to be turned off when the fire controller receives a secondary signal in the alarm signal.

[0008] Optionally, the gas detector comprises: a plurality of sensors, wherein the plurality of sensors are respectively used to detect the concentration and pressure of a plurality of gases.

[0009] Optionally, the multiple communication devices are also connected to a display for displaying the concentrations of multiple gases in the battery module and the energy storage battery compartment.

[0010] Optionally, the puncture valve includes: a first puncture valve and a second puncture valve, the first puncture valve is connected to a first gas detector, and the second puncture valve is connected to a second gas detector, wherein the first gas detector is arranged at a preset point on the inner wall of the energy storage battery compartment, and the second gas detector is pluggably arranged in the battery module.

[0011] Optionally, when the number of the second puncture valves is equal to that of the second gas detectors, they are connected one-to-one with the active nodes of the second gas detectors respectively.

[0012] Optionally, when the number of the second puncture valves is less than that of the second gas detectors, the second puncture valves are connected one-to-many to the active nodes of multiple second gas detectors.

[0013] Optionally, when the number of the second puncture valves is less than that of the second gas detectors, the second puncture valves are respectively arranged at target positions so that the fire extinguishing medium released by each second puncture valve can cover the battery modules where the multiple second detectors connected thereto are located.

[0014] Optionally, a fire power supply box is connected to all gas detectors to supply power to all gas detectors.

[0015] In an embodiment of the present application, an energy storage battery cabin is used, wherein the energy storage battery cabin contains at least one battery module; the energy storage battery cabin and the battery module are both provided with a gas detector for at least detecting gas concentration, and the active node of the gas detector is connected to the fire extinguishing medium pipeline through a puncture valve, wherein the active node is used to open the puncture valve to release the fire extinguishing medium when the gas detector outputs an alarm signal. By arranging gas detectors in the energy storage battery cabin and the battery module and connecting the gas detectors to the fire extinguishing medium pipeline, the purpose of separately detecting and extinguishing each battery module and energy storage battery cabin is achieved, thereby achieving the technical effect of improving the accuracy of fire extinguishing control of the energy storage system, and further solving the technical problem of low accuracy of fire extinguishing control of the energy storage system in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the structure of an energy storage system according to an embodiment of the present application;

[0018] Figure 2is a schematic diagram of another energy storage system structure according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the structure of another energy storage system according to an embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of the structure of another energy storage system according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the related art, a fire extinguishing device and a fire detection device are arranged on the energy storage battery compartment or the battery cluster, but this process has the following problems: since the fire extinguishing device of the compartment-level fire extinguishing system is arranged in the energy storage battery compartment, it is used to extinguish the fire of the entire energy storage battery compartment and cannot cover the inside of each battery module; the cluster-level fire extinguishing system can spray the fire extinguishing medium on all the battery modules in the entire battery cluster, which may cause other battery modules that are not thermally runaway to release the fire extinguishing medium as well, resulting in a waste of fire extinguishing resources. In order to solve the technical problem of low fire extinguishing control accuracy of the energy storage system in the above-mentioned related art, the embodiment of the present application provides an energy storage system, which is described in detail below.

[0024] Figure 1 is a schematic diagram of the structure of an energy storage system according to an embodiment of the present application, such as Figure 1 As shown, the energy storage system includes:

[0025] An energy storage battery compartment 10, wherein the energy storage battery compartment 10 includes at least one battery module 12;

[0026] The energy storage battery compartment 10 and the battery module 12 are both provided with a gas detector 14 for detecting at least the gas concentration, and the active node of the gas detector is connected to the fire extinguishing medium pipeline through a puncture valve 16, wherein the active node is used to open the puncture valve 16 to release the fire extinguishing medium when the gas detector outputs an alarm signal.

[0027] It should be noted that in the related art, most gas detectors only communicate with a single fire controller or BMS using dry contacts. Single communication is unstable and has poor reliability. In order to solve the above problems, Figure 2 As shown, the gas detector 14 in the energy storage system provided in the present application is respectively connected to multiple communication devices, and the multiple communication devices are all connected to a fire controller 20 for controlling the fan 18. The multiple communication devices include at least: a battery management system 22 and a communication module 24.

[0028] It can be understood that all gas detectors are connected to multiple communication devices at the same time, for example: connected to the battery management system 22 and the communication module 24 at the same time, wherein multiple communication devices are connected to the fire controller 20 to avoid a single communication channel causing unstable system communication, wherein the battery management system 22 and the communication module 24 use different communication protocols, for example: the battery management system 22 uses the 485 communication protocol, and the communication module 24 uses the CAN communication protocol.

[0029] like Figure 2 As shown, the fan 18 is connected to the fire controller 20, and the fan 18 is used to be turned on when the fire controller 20 receives a primary signal in the alarm signal, and the fan 18 is also used to be turned off when the fire controller 20 receives a secondary signal in the alarm signal.

[0030] In actual application scenarios, the alarm level corresponding to the first-level signal is lower than the alarm level corresponding to the second-level signal, and different alarm levels correspond to different fire severities. For example, when the alarm signal is a first-level signal, it indicates that the gas concentration received by the gas detector 14 reaches the first concentration threshold or the gas pressure detected by the gas detector reaches the first pressure threshold; when the alarm signal is a second-level signal, it indicates that the gas concentration received by the gas detector 14 reaches the second concentration threshold or the gas pressure detected by the gas detector 14 reaches the second pressure threshold. It can be understood that the first pressure threshold is less than the second pressure threshold, and the first concentration threshold is less than the second concentration threshold.

[0031] In the related art, the type of combustible gas detection used can only detect combustible gas, the detection components are relatively single, false alarms are prone to occur, and the detection effect is limited. In the embodiment of the present application, the gas detector 14 includes: multiple sensors, and the multiple sensors are used to detect the concentration and air pressure of multiple gases respectively, to obtain detection information in multiple dimensions, such as: carbon monoxide, hydrogen, smoke, temperature, volatile organic compounds, air pressure and other dimensions, further enriching the detection accuracy.

[0032] It should be noted that, among the detection information of multiple dimensions received by the gas detector 14, as long as the value corresponding to the detection information of one dimension is greater than the threshold, an alarm signal is triggered, for example: a primary signal or a secondary signal.

[0033] In some embodiments of the present application, multiple communication devices are also connected to a display for displaying the concentrations of multiple gases in the battery module 14 and the energy storage battery compartment 10, so as to display the gas concentrations of multiple gases in the battery module and the energy storage battery compartment through the display.

[0034] The fire power supply box 26 is connected to all gas detectors 14 to supply power to all gas detectors.

[0035] In an optional manner, the puncture valve 16 includes: a first puncture valve and a second puncture valve, the first puncture valve (not shown in the figure) is connected to the first gas detector 141, and the second puncture valve is connected to the second gas detector 142, wherein the first gas detector 141 is arranged at a preset point on the inner wall of the energy storage battery compartment, and the second gas detector 142 is pluggable and arranged in the battery module.

[0036] It is understandable that the second gas detector 142 can be removed or installed according to actual scenarios.

[0037] like Figure 3 As shown, when the number of the second puncture valves is equal to that of the second gas detectors 142, they are respectively connected one-to-one with the active nodes (not shown in the figure) of the second gas detectors 142.

[0038] When the number of the second puncture valves is less than the second gas detectors 142, they are respectively connected one-to-many to the active nodes of the plurality of second gas detectors 142.

[0039] When the number of the second puncture valves is less than that of the second gas detectors, the second puncture valves are respectively arranged at target positions so that the fire extinguishing medium released by each second puncture valve can cover the battery modules where the multiple second detectors connected thereto are located.

[0040] For example: when each battery cluster contains a plurality of the battery modules and the number of the battery modules is an integer multiple of 4, a target number of the second puncture valves are set in each battery cluster, and the target number is equal to the integer.

[0041] Figure 4 An energy storage system with 8 battery modules in each battery cluster is shown. Figure 4 As shown, every four battery modules 12 share one puncture valve 16. When the alarm signal is a level 2 signal, the fire extinguishing medium will be sprayed on the four adjacent battery modules through the puncture valve.

[0042] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0043] In the above embodiments of the present application, 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 relevant description of other embodiments.

[0044] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0045] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0046] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0047] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0048] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An energy storage system, characterized in that: include: An energy storage battery compartment, wherein the energy storage battery compartment contains at least one battery module; The energy storage battery compartment and the battery module are both provided with a gas detector for at least detecting the gas concentration, and the active node of the gas detector is connected to the fire extinguishing medium pipeline through a puncture valve, wherein the active node is used to open the puncture valve to release the fire extinguishing medium when the gas detector outputs an alarm signal.

2. The energy storage system according to claim 1, characterized in that: The gas detectors are respectively connected to a plurality of communication devices, and the plurality of communication devices are all connected to a fire controller for controlling the fan. The plurality of communication devices at least include: a battery management system and a communication module.

3. The energy storage system according to claim 2, characterized in that: The fan is connected to the fire controller, and is used to be turned on when the fire controller receives a primary signal in the alarm signal, and is also used to be turned off when the fire controller receives a secondary signal in the alarm signal.

4. The energy storage system according to claim 2, characterized in that: The gas detector comprises: a plurality of sensors, wherein the plurality of sensors are respectively used to detect the concentration and pressure of a plurality of gases.

5. The energy storage system according to claim 4, characterized in that: The multiple communication devices are also connected to a display for displaying the concentrations of multiple gases in the battery module and the energy storage battery compartment.

6. The energy storage system according to claim 1, characterized in that: The puncture valve includes: a first puncture valve and a second puncture valve, the first puncture valve is connected to a first gas detector, and the second puncture valve is connected to a second gas detector, wherein the first gas detector is arranged at a preset point on the inner wall of the energy storage battery compartment, and the second gas detector is pluggable and arranged in the battery module.

7. The energy storage system according to claim 6, characterized in that: When the number of the second puncture valves is equal to that of the second gas detectors, they are respectively connected one-to-one with the active nodes of the second gas detectors.

8. The energy storage system according to claim 6, characterized in that: When the number of the second puncture valves is less than that of the second gas detectors, the second puncture valves are respectively connected one-to-many to the active nodes of the plurality of second gas detectors.

9. The energy storage system according to claim 8, characterized in that: When the number of the second puncture valves is less than that of the second gas detectors, the second puncture valves are respectively arranged at target positions so that the fire extinguishing medium released by each second puncture valve can cover the battery modules where the multiple second detectors connected thereto are located.

10. The energy storage system according to claim 1, characterized in that: The fire power supply box is connected to all gas detectors and is used to supply power to all gas detectors.

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