CN115458831A - Battery cluster system, battery cluster fire extinguishing method and energy storage container - Google Patents
Battery cluster system, battery cluster fire extinguishing method and energy storage container Download PDFInfo
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- CN115458831A CN115458831A CN202211144713.6A CN202211144713A CN115458831A CN 115458831 A CN115458831 A CN 115458831A CN 202211144713 A CN202211144713 A CN 202211144713A CN 115458831 A CN115458831 A CN 115458831A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004146 energy storage Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 36
- 239000000523 sample Substances 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 51
- 239000003795 chemical substances by application Substances 0.000 description 22
- 239000007787 solid Substances 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a battery cluster system, a battery cluster fire extinguishing method and an energy storage container, and relates to the technical field of batteries. The battery cluster system includes: the fire extinguishing system comprises a battery cluster, a fire extinguishing device, a detector and a fire control controller. The battery cluster comprises a plurality of battery modules; the fire extinguishing device comprises a connecting pipeline and fire extinguishers, the connecting pipeline is provided with an inlet end and a plurality of outlet ends, each outlet end is provided with a control valve, the inlet end is communicated with the fire extinguishers, the plurality of outlet ends correspond to the plurality of battery modules one by one, and one outlet end faces the corresponding battery module; the fire-fighting controller is electrically connected with the detector and the control valve. In this application embodiment, the control valve that the battery module that fire was caught light in fire control ware control corresponds is opened to corresponding battery module to catching fire puts out a fire, reduces the waste of fire extinguishing agent in the fire extinguisher, and the extension is long to putting out a fire of the battery module that catches fire, guarantees the validity of putting out a fire.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery cluster system, a battery cluster fire extinguishing method and an energy storage container.
Background
At present, because the lithium battery has the characteristics of large capacity, high voltage and the like, the energy storage container usually adopts the lithium battery as energy storage equipment. And produce more heat easily in the use of lithium cell, if the lithium cell heat dissipation is untimely, perhaps along with the ageing of lithium cell, all catch fire easily, even cause the risk of explosion, form the potential safety hazard.
Disclosure of Invention
One main object of the application is to provide a battery cluster system, a battery cluster fire extinguishing method and an energy storage container which can prolong the time of fire extinguishing and ensure the effectiveness of fire extinguishing.
In order to achieve the purpose of the application, the following technical scheme is adopted in the application:
according to an aspect of the present application, there is provided a battery cluster system including:
a battery cluster including a plurality of battery modules;
the fire extinguishing device comprises a connecting pipeline and a fire extinguisher, wherein the connecting pipeline is provided with an inlet end and a plurality of outlet ends, each outlet end is provided with a control valve, the inlet end is communicated with the fire extinguisher, the plurality of outlet ends are in one-to-one correspondence with the plurality of battery modules, and one outlet end faces the corresponding battery module;
the detector is used for monitoring whether the battery cluster is on fire or not and sending a trigger signal when the battery cluster is on fire;
and the fire-fighting controller is electrically connected with the detector and the control valve, and is used for receiving the trigger signal, determining the battery module in the battery cluster which is on fire when receiving the trigger signal, and controlling the control valve corresponding to the battery module which is on fire to open.
In this application embodiment, whether the accessible detector monitors the battery cluster in advance and fires, and under the condition that the battery cluster fires, the battery module that fires in the battery cluster is confirmed to rethread fire control controller to whether having avoided continuously monitoring a plurality of battery modules that the battery cluster includes through the fire control controller to fire, saved the resource. In addition, after the battery module that the fire was confirmed to the fire control controller, the control valve that the battery module that controls was on fire corresponds opens to having targeted battery module to put out a fire to on fire through an exit end, reducing the waste of fire extinguishing agent in the fire extinguisher, the extension is long when putting out a fire to the battery module that is on fire, thereby guarantees the validity of putting out a fire, avoids the battery module to put out a fire the condition of after-burning again.
According to an embodiment of the present application, the battery cluster system further comprises a battery management system, wherein the battery management system is electrically connected with the fire fighting controller;
the battery management system is used for monitoring the state parameters of the plurality of battery modules, and the fire-fighting controller is used for acquiring the state parameters of the plurality of battery modules when receiving the trigger signal and determining the battery module on fire according to the state parameters of the plurality of battery modules.
In the embodiment of the application, through the cooperation of battery management system and fire control controller to confirm the battery module that fires in the battery cluster, so only need the detector monitoring battery cluster if fire can, thereby reduced the use of detector, be convenient for simplify the battery cluster system. In addition, through the state parameter of fire control controller analysis battery module, confirm the battery module on fire to the accuracy of the judgement of the battery module on fire has been improved.
According to an embodiment of the present application, the state parameters of the battery module include voltage and temperature.
In this application embodiment, carry out dual analysis through voltage and the temperature to battery module to improve the accuracy of the judgement of the battery module that fires.
According to an embodiment of the application, wherein the detector is a gas detector.
According to the embodiment of the application, the gas detector can realize large-range monitoring, so that the accuracy of the gas detector for monitoring the battery clusters is ensured.
According to an embodiment of the present application, the battery cluster system comprises a plurality of the probes;
the detector is used for monitoring whether the corresponding battery module is on fire or not, and the fire-fighting controller determines that the corresponding battery module is on fire when receiving the trigger signal.
In this application embodiment, the monitoring of pertinence is carried out to a plurality of battery module to a plurality of detectors of accessible, and then when fire control controller received trigger signal, the battery module that the detector that will send this trigger signal corresponds is confirmed to be the battery module that catches fire. In addition, the battery module that fire control controller accessible discernment trigger signal can confirm to the operation process of fire control controller can be simplified, fire extinguishing efficiency is improved.
According to an embodiment of the application, wherein the detector is a flame detector.
This application embodiment, the monitoring of pertinence can be realized to the flame detector to the accuracy of a plurality of battery module monitoring is guaranteed.
According to an embodiment of the application, the battery cluster system further comprises an alarm, and the alarm is electrically connected with the detector or the fire fighting controller.
In this application embodiment, through the setting of alarm, can warn when the battery module in the battery cluster is on fire to in time know the behavior of battery cluster.
According to an embodiment of the application, wherein the fire extinguisher is a gas extinguisher.
In this application embodiment, when adopting gas fire extinguisher to put out a fire, can not form the residue on the battery module of battery cluster to can effectively guarantee the clean and tidy nature of battery cluster after accomplishing to put out a fire.
According to an embodiment of the application, the battery cluster system further comprises a plurality of gas sensors, wherein the plurality of gas sensors correspond to the plurality of battery modules one by one and are electrically connected with the fire-fighting controller;
the gas sensor is used for monitoring the fire extinguishing gas concentration of the surrounding environment of the battery module on fire and transmitting the fire extinguishing gas concentration to the fire control controller, and the fire control controller is used for controlling the control valve corresponding to the battery module on fire to close when the fire extinguishing gas concentration is greater than or equal to the reference concentration.
In the embodiment of the application, the gaseous concentration of putting out a fire of surrounding environment is monitored to the gas sensor that the accessible set up to the realization is effectively put out a fire to the battery module that fires. And after finishing putting out a fire, can in time close the control valve that the battery module that catches fire corresponds to reduce the waste of gaseous fire extinguishing agent, thereby increase gaseous fire extinguisher's use number of times.
According to another aspect of the present application, there is provided a fire extinguishing method for a battery cluster, the method being applied to the battery cluster system of the above aspect, the method comprising:
generating a trigger signal when the detector determines that the battery cluster is on fire, and transmitting the trigger signal to the fire-fighting controller;
and the fire fighting controller determines the battery module on fire in the battery cluster according to the trigger signal and sends an opening signal to a control valve corresponding to the battery module on fire so as to conduct the fire extinguisher and the battery module on fire.
In this application embodiment, through the detector in advance monitor the battery cluster whether to catch fire, and under the battery cluster condition of catching fire, the battery module that catches fire in the battery cluster is confirmed to rethread fire control controller to avoided continuously monitoring a plurality of battery modules that the battery cluster includes through the fire control controller whether to catch fire, saved the resource. In addition, after the battery module that the fire was confirmed to the fire control controller, the control valve that the battery module that the control was on fire corresponds opened to pointed put out a fire to the battery module that is on fire, reduce the waste of fire extinguishing agent in the fire extinguisher, the extension is long when putting out a fire to the battery module that is on fire, thereby guarantees the validity of putting out a fire.
According to an embodiment of the application, the battery cluster system further includes a battery management system, and the fire fighting controller determines the battery module that is on fire according to the trigger signal, including:
when the fire-fighting controller receives the trigger signal, acquiring state parameters of the plurality of battery modules monitored by the battery management system;
and the fire-fighting controller determines the battery module on fire according to the state parameters of the plurality of battery modules.
In this application embodiment, through the cooperation of battery management system with the fire control controller to confirm the battery module that fires in the battery cluster, so only need the detector monitoring battery cluster whether fire can, thereby reduced the use of detector, be convenient for simplify battery cluster system. In addition, the state parameters of the battery module are analyzed through the fire-fighting controller, and the battery module on fire is determined, so that the accuracy of judgment of the battery module on fire is improved.
According to an embodiment of this application, wherein, the fire extinguisher is gas fire extinguisher, the battery cluster system includes a plurality of gas sensor, switch on after the battery module of fire extinguisher and firing, still include:
the gas sensor monitors the concentration of fire extinguishing gas in the surrounding environment of the battery module on fire, and transmits the concentration of the fire extinguishing gas to the fire-fighting controller;
and when the fire-fighting controller determines that the concentration of the fire-fighting gas is greater than or equal to the reference concentration, sending a closing signal to a control valve corresponding to the battery module on fire.
In the embodiment of the application, the gaseous concentration of putting out a fire of surrounding environment is monitored to the gas sensor that the accessible set up to the realization is effectively put out a fire to the battery module that fires. And after finishing putting out a fire, can in time close the control valve that the battery module that catches fire corresponds to reduce the waste of gaseous fire extinguishing agent, thereby increase gaseous fire extinguisher's use number of times.
According to another aspect of the present application, there is provided an energy storage container, comprising: the battery cluster system comprises a box body and a plurality of battery cluster systems located in the box body.
In this application embodiment, combine the aforesaid, can avoid continuously monitoring a plurality of battery module that the battery cluster includes through the fire control controller whether to catch fire, saved the resource, can also reduce the waste of fire extinguishing agent in the fire extinguisher, the extension is long to putting out a fire of the battery module that catches fire to guarantee the validity of putting out a fire, and then guarantee the security that energy storage container used.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic diagram illustrating a configuration of a battery cluster system according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating another configuration of a battery cluster system according to an exemplary embodiment.
Fig. 3 is a schematic diagram illustrating a structure of yet another battery cluster system according to an exemplary embodiment.
FIG. 4 is a schematic flow diagram illustrating a method of extinguishing a fire in a battery cluster, according to an exemplary embodiment.
Fig. 5 is a schematic diagram of an energy storage container according to an exemplary embodiment.
Wherein the reference numerals are as follows:
10. an energy storage container;
1. a battery cluster system; 2. a box body;
11. a battery cluster; 12. a fire extinguishing device; 13. a detector; 14. a fire-fighting controller; 15. a battery management system; 16. a gas sensor;
111. a battery module; 112. a high voltage box;
121. connecting a pipeline; 122. a fire extinguisher.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the related art, in order to avoid the situation that the energy storage container is in fire or even explodes, the energy storage container comprises a box body, a plurality of battery clusters located in the box body, and a battery management system and a fire extinguisher located in the box body, wherein a plurality of nozzles of the fire extinguisher correspond to the plurality of battery clusters one to one, and one nozzle faces the corresponding battery cluster.
The battery management system is used for monitoring the state parameters of the battery modules included in each battery cluster, determining the battery module on fire according to the monitored state parameters of the battery modules, and then spraying the fire extinguishing agent to the battery cluster where the battery module on fire is located by the fire extinguisher.
So, though can put out a fire in the initial stage of catching a fire, because the fire extinguishing agent of splendid attire is limited in the fire extinguisher, to the battery cluster at whole battery module place that catches a fire, can cause the waste of fire extinguishing agent undoubtedly, and shorten effective length of putting out a fire. After the fire extinguishing agent in the fire extinguisher is consumed, the battery module on fire may not effectively extinguish the fire due to the short fire extinguishing time, so that the condition of re-burning exists.
The embodiment of the application provides a battery cluster system 1. As shown in fig. 1 or fig. 2, the battery cluster system 1 includes: a battery cluster 11, a fire extinguishing device 12, a detector 13 and a fire fighting controller 14. The battery cluster 11 includes a plurality of battery modules 111; the fire extinguishing apparatus 12 includes a connecting pipeline 121 and a fire extinguisher 122, the connecting pipeline 121 has an inlet end and a plurality of outlet ends, each outlet end is provided with a control valve, the inlet end is communicated with the fire extinguisher 122, the plurality of outlet ends are in one-to-one correspondence with the plurality of battery modules 111, and one outlet end faces the corresponding battery module 111; the fire-fighting controller 14 is electrically connected with the detector 13 and the control valve.
The detector 13 is configured to monitor whether the battery cluster 11 is on fire, and send a trigger signal when the battery cluster 11 is on fire, and the fire protection controller 14 is configured to receive the trigger signal, determine the battery module 111 in the battery cluster 11 that is on fire when receiving the trigger signal, and control a control valve corresponding to the battery module 111 that is on fire to open.
So, whether accessible detector 13 monitors the battery cluster 11 in advance and fires, and under the condition that the battery cluster 11 fires, the battery module 111 that fires among the battery cluster 11 is confirmed to rethread fire control controller 14 to whether having avoided continuously monitoring a plurality of battery modules 111 that the battery cluster 11 includes through fire control controller 14 to fire, saved the resource. In addition, after the fire-fighting controller 14 determines the battery module 111 that fires, the control valve corresponding to the battery module 111 that fires is controlled to open to the battery module 111 that fires that has a pertinence through an exit end puts out a fire, reduces the waste of fire extinguishing agent in the fire extinguisher 122, and it is long to prolong the time of putting out a fire to the battery module 111 that fires, thereby guarantees the validity of putting out a fire, avoids the condition of restriking after the battery module 111 puts out a fire.
In the embodiment of the present application, the battery modules 111 are formed by a plurality of battery cells in a series-parallel connection manner, and the battery clusters 11 are formed by a plurality of battery modules 111 in a series-parallel connection manner. When putting out a fire to battery cluster 11, can put out a fire as minimum unit with battery module 111, also can put out a fire as minimum unit with electric core.
Wherein, the battery cluster 11 includes a plurality of battery modules 111, as shown in fig. 1 or 2, the battery cluster 11 further includes a high voltage box 112, and the plurality of battery modules 111 are electrically connected to the high voltage box 112 after being connected in series and in parallel, so as to be electrically connected to an external circuit through the high voltage box 112.
When fire extinguishing is performed with the battery module 111 as the minimum unit, the connection pipe 121 may be provided in such a manner that one outlet end of the connection pipe 121 faces one battery module 111 as described above. Because battery module 111 includes a plurality of electric cores for the shared region of battery module 111 is great, can effectively put out a fire to a battery module 111 that corresponds through an exit end in order to guarantee, extinguishing device 12 still includes a plurality of shower nozzles, a plurality of shower nozzles and a plurality of exit end one-to-one, and a shower nozzle is connected at an exit end that corresponds.
When putting out a fire with electric core as minimum unit, an exit end of connecting line 121 is connected with a plurality of subports, a plurality of electric cores one-to-one that a plurality of subports and a battery module 111 include, and an electric core that a subport orientation corresponds. So, the multiple electric cores of the multiple sub-ports of accessible are pointed and are put out a fire to improve the high efficiency of putting out a fire to battery module 111.
In the present embodiment, the fire extinguisher 122 may be a gas extinguisher (such as a carbon dioxide extinguisher) or a solid extinguisher (such as a foam extinguisher or a dry powder extinguisher). Because when adopting gas extinguisher to put out a fire, can not form the residue on battery module 111 of battery cluster 11 to can effectively guarantee the clean and tidy nature of battery cluster 11 after accomplishing to put out a fire, optional gas extinguisher puts out a fire.
Optionally, in the case that the fire extinguisher 122 is a gas fire extinguisher, as shown in fig. 3, the battery cluster system 1 further includes a plurality of gas sensors 16, and the plurality of gas sensors 16 correspond to the plurality of battery modules 111 one by one and are all electrically connected to the fire fighting controller 14.
Wherein, gas sensor 16 is used for monitoring the fire extinguishing gas concentration of battery module 111 surrounding environment on fire and transmits to fire control controller 14, and fire control controller 14 is used for controlling the control valve that battery module 111 on fire corresponds and closes when the fire extinguishing gas concentration is greater than or equal to reference concentration.
Thus, when the gas extinguisher extinguishes the battery module 111 on fire, the gas sensor 16 provided by the accessible monitors the fire extinguishing gas concentration of the surrounding environment, and when the monitored fire extinguishing gas concentration is higher than the reference concentration, the gas extinguishing agent sprayed out by the gas extinguisher at this time is indicated to be capable of effectively extinguishing the battery module 111 on fire. After the fire is extinguished, the control valve corresponding to the battery module 111 on fire can be closed in time, so that the waste of the gas fire extinguishing agent is reduced, and the use times of the gas fire extinguisher are increased.
Wherein, reference concentration can be predetermined according to the actual demand of putting out a fire of fire extinguishing gas to when guaranteeing that the concentration of putting out a fire extinguishing gas reaches reference concentration, can guarantee the validity of putting out a fire.
Optionally, in the case that the fire extinguisher 122 is a solid fire extinguisher, the battery cluster system 1 may further include a plurality of image sensors, which correspond to the plurality of battery modules 111 one by one and are all electrically connected to the fire fighting controller 14.
The image sensor is used for acquiring image information of the battery module 111 on fire and transmitting the image information to the fire-fighting controller 14, the fire-fighting controller 14 is used for determining the coverage area of the solid fire-extinguishing agent on the surface of the battery module 111 on fire according to the acquired image information, and the control valve corresponding to the battery module 111 on fire is controlled to be closed when the solid fire-extinguishing agent completely covers the whole surface of the battery module 111 on fire.
Like this, when the solid fire extinguisher put out a fire to the battery module 111 that fires, the image sensor collection that the accessible set up fires battery module 111's image information, when fire control controller 14 confirmed that the solid fire extinguishing agent covers the whole surface of the battery module 111 that fires completely according to the image information who gathers, then show that the solid fire extinguishing agent of solid fire extinguisher spun this moment can realize putting out a fire effectively to the battery module 111 that fires. After the fire is extinguished, the control valve corresponding to the battery module 111 on fire can be closed in time, so that the waste of the solid fire extinguishing agent is reduced, and the use times of the solid fire extinguisher are increased.
In the embodiment of the present application, the detector 13 may be a gas suction type detector (e.g., a toxic gas detector, a smoke detector), a flame detector (e.g., an ultraviolet detector, an infrared detector), or the like.
When the detector 13 monitors the whole battery cluster 11 as a monitoring unit, the air suction type detector can be used for monitoring the battery cluster 11 in order to increase the monitoring range, and when the detector 13 monitors the battery module 111 as a monitoring unit, the flame detector can be used for monitoring the battery module 111 in order to achieve targeted monitoring.
It should be noted that, when the detector 13 uses the battery module 111 as a monitoring unit, the battery cluster system 1 includes a plurality of detectors 13, the plurality of detectors 13 correspond to the plurality of battery modules 111 included in the battery cluster 11 one by one, and one detector 13 is used for monitoring whether the corresponding battery module 111 is on fire, so as to determine whether the battery cluster 11 is on fire.
In the embodiment of the present application, the fire fighting controller 14 may refer to the related art, and the specific implementation manner of the battery module 111 that receives the trigger signal of the detector 13 at the fire fighting controller 14 to determine the fire in the battery cluster 11 may refer to the following description.
In some embodiments, as shown in fig. 1, the battery cluster system 1 further includes a battery management system 15, the battery management system 15 is electrically connected to the fire protection controller 14, the battery management system 15 is configured to monitor status parameters of the plurality of battery modules 111, and the fire protection controller 14 is configured to obtain the status parameters of the plurality of battery modules 111 when receiving a trigger signal, and determine the battery module 111 that is on fire according to the status parameters of the plurality of battery modules 111.
As such, after the fire fighting controller 14 receives the state parameters of each battery module 111, it is possible to analyze whether the state parameters of the battery modules 111 are abnormal to determine the battery modules 111 that have ignited at the plurality of battery modules 111. In addition, through the cooperation of the battery management system 15 and the fire-fighting controller 14, only the detector 13 is needed to monitor whether the battery cluster 11 is on fire, so that the use of the detector 13 is reduced, and the simplification of the battery cluster system 1 is facilitated. Furthermore, the state parameters of the battery modules 111 are analyzed by the fire-fighting controller 14 to determine the battery modules 111 on fire, so that the accuracy of the battery modules 111 on fire is improved, and the situation that the battery modules 111 on fire are omitted is avoided.
Among them, the battery management system 15 may be a BMS battery management system 15. In combination with the above-mentioned situation that the battery module 111 includes a plurality of battery cells, the battery management system 15 may monitor the state parameters of each battery cell.
Alternatively, the state parameters of the battery modules 111 monitored by the battery management system 15 include voltages, and the fire fighting controller 14 may determine the abnormal-voltage battery module 111 in combination with the voltage of each battery module 111, and further determine the abnormal-voltage battery module 111 as the battery module 111 that catches fire.
Alternatively, the state parameters of the battery modules 111 monitored by the battery management system 15 include voltage and temperature, and the fire fighting controller 14 may determine the battery modules 111 with abnormal voltage and temperature in combination with the voltage and temperature of each battery module 111, and then determine the battery modules 111 with abnormal voltage and temperature as the battery modules 111 that are on fire. Thus, the accuracy of the determination of the battery module 111 that has ignited is improved by the double analysis of the voltage and the temperature.
Alternatively, the state parameters of the battery modules 111 monitored by the battery management system 15 include voltage, current, and temperature, and the fire fighting controller 14 may determine the battery modules 111 having abnormal voltage, current, and temperature in conjunction with the voltage, current, and temperature of each battery module 111, and then determine the battery modules 111 having abnormal voltage, current, and temperature as the battery modules 111 that are on fire. Thus, the accuracy of the determination of the battery module 111 that has ignited is improved by the triple analysis of the voltage, the current, and the temperature.
It should be noted that, in the case that the battery cluster system 1 includes the battery management system 15, the battery module 111 in the battery cluster 11 that is on fire can be determined by monitoring the state parameters of the battery modules 111, so that before determining the battery module 111 that is on fire, it is only necessary to determine whether the battery cluster 11 is on fire.
In combination with the above, it is only necessary to monitor the battery cluster 11 through the detector 13. In order to ensure the accuracy of the detector 13 in monitoring the battery pack 11, so as to accurately monitor when any battery module 111 is on fire, the detector 13 may be a gas detector. The detector 13 is illustratively a toxic gas detector, a smoke detector 13.
It should be further noted that, in combination with the above-mentioned situation that the connection pipeline 121 includes the sub-port, at this time, a control valve may be disposed at one sub-port, and then the state parameter of each electrical core is acquired through the fire protection controller 14, and then the electrical core on fire is analyzed to control the control valve corresponding to the electrical core on fire to open, so as to extinguish the fire with respect to the electrical core on fire. So, for the aforesaid use battery module 111 as the unit of putting out a fire, can further reduce the waste of fire extinguishing agent in the fire extinguisher 122, the extension is long to putting out a fire of the electric core on fire to guarantee the validity of putting out a fire.
In other embodiments, as shown in fig. 2, the battery cluster system 1 includes a plurality of detectors 13, the plurality of detectors 13 correspond to the plurality of battery modules 111 one by one, the detectors 13 are configured to monitor whether the corresponding battery module 111 is on fire, and the fire protection controller 14 determines that the corresponding battery module 111 is on fire when receiving the trigger signal.
In this way, the plurality of battery modules 111 can be monitored in a targeted manner by the plurality of probes 13, and when the fire fighting controller 14 receives the trigger signal, the battery module 111 corresponding to the probe 13 that transmitted the trigger signal is determined as the battery module 111 that has ignited.
Optionally, in combination with the above, in order to realize the targeted monitoring of the battery module 111, the detector 13 is a flame detector. The number of the detectors 13 may be one or plural. Illustratively, the battery cluster system 1 includes four detectors 13, where the four detectors 13 are disposed at four corners of the battery cluster 11, respectively.
In some embodiments, the battery cluster system 1 further comprises an alarm for alarming when the battery cluster 11 is on fire. The alarm can be an acousto-optic alarm lamp, an alarm and the like.
Wherein the alarm is electrically connected with the detector 13 or the fire-fighting controller 14. When the alarm is electrically connected with the detector 13, the detector 13 can simultaneously send a trigger signal to the alarm when detecting that the battery pack 11 is on fire and sending the trigger signal to the fire-fighting controller 14, so as to alarm through the alarm.
When the alarm is connected with fire control controller 14 electricity, when fire control controller 14 received the trigger signal that detector 13 sent, can directly send alarm signal to the alarm to report to the police through the alarm (the alarm is setting up to battery cluster 11 this moment). Or after the fire-fighting controller 14 determines the battery module 111 that is on fire, an alarm signal is sent to an alarm to alarm through the alarm (at this time, the alarm is set for the battery module 111, that is, the battery cluster system 1 includes a plurality of alarms corresponding to the plurality of battery modules 111 one to one).
The embodiment of the application provides a fire extinguishing method for a battery cluster. The method is applied to the battery cluster system according to the above embodiment, and as shown in fig. 4, the method includes the following steps S410 to S420.
And step S410, generating a trigger signal when the detector determines that the battery cluster is on fire, and transmitting the trigger signal to a fire-fighting controller.
And step S420, the fire-fighting controller determines the battery module on fire in the battery cluster according to the trigger signal and sends an opening signal to a control valve corresponding to the battery module on fire so as to conduct the fire extinguisher and the battery module on fire.
In this application embodiment, whether the accessible detector monitors the battery cluster in advance and fires, and under the condition that the battery cluster fires, the battery module that fires in the battery cluster is confirmed to rethread fire control controller to whether having avoided continuously monitoring a plurality of battery modules that the battery cluster includes through the fire control controller to fire, saved the resource. In addition, after the battery module that the fire was hit on fire was confirmed to the fire control controller, the control valve that the battery module that the control was hit on fire corresponds opens to pointed put out a fire to the battery module that hits on fire, reduce the waste of fire extinguishing agent in the fire extinguisher, the extension is long when putting out a fire to the battery module that hits on fire, thereby guarantees the validity of putting out a fire, avoids the battery module to put out a fire the condition of after-burning.
In step S410, with reference to the above embodiments, the detectors may be gas detectors, flame detectors, and the like, and the number of the detectors may be 1 or multiple; when the number of the detectors is plural, the plural detectors may correspond to the plural battery modules included in the battery cluster one to one.
In the step S420, the fire fighting controller may determine the battery module in the battery cluster, which is on fire, in a manner described in the above embodiment. The battery cluster system further comprises a battery management system, and at the moment, when the fire-fighting controller receives the trigger signal, the state parameters of the plurality of battery modules monitored by the battery management system are acquired; the fire-fighting controller determines the battery module on fire according to the state parameters of the plurality of battery modules. Thus, after the fire-fighting controller receives the state parameters of each battery module, whether the state parameters of the battery modules are abnormal or not can be analyzed, so that the battery modules on fire can be determined at the plurality of battery modules.
Further, in combination with the above embodiments, the fire extinguisher may be a gas fire extinguisher or a solid fire extinguisher. And when the fire extinguisher is a gas fire extinguisher, the battery cluster system comprises a plurality of gas sensors, and the battery cluster fire extinguishing method further comprises the following steps: the gas sensor monitors the fire extinguishing gas concentration of the surrounding environment of the battery module on fire, transmits the fire extinguishing gas concentration to the fire control controller, and sends a closing signal to the control valve corresponding to the battery module on fire when the fire control controller determines that the fire extinguishing gas concentration is greater than or equal to the reference concentration.
So, the gaseous sensor monitoring surrounding environment's of accessible setting fire extinguishing gas concentration, when the fire extinguishing gas concentration of monitoring is greater than reference concentration, then indicate this moment gaseous fire extinguisher spun gaseous extinguishing agent can realize effectively putting out a fire to the battery module on fire. And after finishing putting out a fire, can in time close the control valve that the battery module that catches fire corresponds to reduce the waste of gaseous fire extinguishing agent, thereby increase gaseous fire extinguisher's use number of times.
The disclosed embodiment also provides an energy storage container 10. As shown in fig. 5, the energy storage container 10 includes: a box 2 and a plurality of battery cluster systems 1 located within the box 2.
The battery cluster system 1 is described in the above embodiments. So, combine the aforesaid battery cluster system 1, can avoid continuously monitoring whether a plurality of battery module 111 that battery cluster 11 includes through fire control controller 14 are on fire, save the resource, can also reduce the waste of fire extinguishing agent in fire extinguisher 122, the extension is long to putting out a fire of battery module 111 who is on fire to guarantee the validity of putting out a fire, and then guarantee the security that energy storage container 10 used.
In the application examples, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the examples of the application can be understood by those skilled in the art according to specific situations.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
In the description herein, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application embodiment. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the claimed embodiments and is not intended to limit the claimed embodiments, and various modifications and changes may be made to the claimed embodiments by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the applied embodiment shall be included in the protection scope of the applied embodiment.
Claims (13)
1. A battery cluster system, comprising:
a battery cluster including a plurality of battery modules;
the fire extinguishing device comprises a connecting pipeline and a fire extinguisher, wherein the connecting pipeline is provided with an inlet end and a plurality of outlet ends, each outlet end is provided with a control valve, the inlet end is communicated with the fire extinguisher, the outlet ends are in one-to-one correspondence with the battery modules, and one outlet end faces the corresponding battery module;
the detector is used for monitoring whether the battery cluster is on fire or not and sending a trigger signal when the battery cluster is on fire;
and the fire-fighting controller is electrically connected with the detector and the control valve, and is used for receiving the trigger signal, determining the battery module which fires in the battery cluster when receiving the trigger signal, and controlling the control valve corresponding to the battery module which fires to open.
2. The battery cluster system of claim 1, further comprising a battery management system electrically connected to the fire protection controller;
the battery management system is used for monitoring the state parameters of the plurality of battery modules, and the fire-fighting controller is used for acquiring the state parameters of the plurality of battery modules when receiving the trigger signal and determining the battery module on fire according to the state parameters of the plurality of battery modules.
3. The battery cluster system of claim 2, wherein the state parameters of the battery modules include voltage and temperature.
4. The battery cluster system of claim 2, wherein the detector is a gas detector.
5. The battery cluster system of claim 1, wherein the battery cluster system comprises a plurality of the probes;
the detector is used for monitoring whether the corresponding battery module is on fire or not, and the fire-fighting controller determines that the corresponding battery module is on fire when receiving the trigger signal.
6. The battery cluster system of claim 5, wherein the detector is a flame detector.
7. The battery cluster system of any one of claims 1-6, further comprising an alarm electrically connected to the detector or the fire controller.
8. The battery cluster system of any one of claims 1-6, wherein the fire extinguisher is a gas fire extinguisher.
9. The battery cluster system of claim 8, further comprising a plurality of gas sensors in one-to-one correspondence with the plurality of battery modules and each electrically connected to the fire protection controller;
the gas sensor is used for monitoring the fire extinguishing gas concentration of the surrounding environment of the battery module on fire and transmitting the fire extinguishing gas concentration to the fire control controller, and the fire control controller is used for controlling the control valve corresponding to the battery module on fire to be closed when the fire extinguishing gas concentration is greater than or equal to the reference concentration.
10. A method of extinguishing a fire in a battery cluster, the method being applied to the battery cluster system according to any one of claims 1 to 9, the method comprising:
generating a trigger signal when the detector determines that the battery cluster is on fire, and transmitting the trigger signal to the fire-fighting controller;
and the fire fighting controller determines the battery module on fire in the battery cluster according to the trigger signal and sends an opening signal to a control valve corresponding to the battery module on fire so as to conduct the fire extinguisher and the battery module on fire.
11. The method of claim 10, wherein the battery cluster system further comprises a battery management system, and the fire fighting controller determines the battery module that is on fire according to the trigger signal, comprising:
when the fire-fighting controller receives the trigger signal, acquiring state parameters of the plurality of battery modules monitored by the battery management system;
and the fire-fighting controller determines the battery module on fire according to the state parameters of the plurality of battery modules.
12. The method of claim 10 or 11, wherein the fire extinguisher is a gas fire extinguisher, the battery cluster system comprises a plurality of gas sensors, and after the conducting the fire extinguisher and the battery module on fire, the method further comprises:
the gas sensor monitors the concentration of fire extinguishing gas in the surrounding environment of the battery module on fire, and transmits the concentration of the fire extinguishing gas to the fire-fighting controller;
and when the fire-fighting controller determines that the concentration of the fire-fighting gas is greater than or equal to the reference concentration, sending a closing signal to a control valve corresponding to the battery module on fire.
13. An energy storage container, comprising: a housing and a plurality of battery cluster systems of any of the preceding claims 1-9 located within the housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211144713.6A CN115458831A (en) | 2022-09-20 | 2022-09-20 | Battery cluster system, battery cluster fire extinguishing method and energy storage container |
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| CN202211144713.6A CN115458831A (en) | 2022-09-20 | 2022-09-20 | Battery cluster system, battery cluster fire extinguishing method and energy storage container |
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