CN218944200U - Battery energy storage device and fire control system thereof - Google Patents
Battery energy storage device and fire control system thereof Download PDFInfo
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- CN218944200U CN218944200U CN202222945668.6U CN202222945668U CN218944200U CN 218944200 U CN218944200 U CN 218944200U CN 202222945668 U CN202222945668 U CN 202222945668U CN 218944200 U CN218944200 U CN 218944200U
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- 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
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- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses a battery energy storage device and fire control system thereof. The application provides a battery energy storage device's fire control system, battery energy storage device include container shell with set up in a plurality of battery packs in the container shell, fire control system includes: the gas detector is arranged in the container shell and is used for detecting the gas released by the battery pack; the first temperature detection elements are arranged on the battery pack in a one-to-one correspondence manner; the spray heads are corresponding to one battery pack and are used for spraying a first fire extinguishing agent to the battery pack; the fire control pipeline assembly comprises a first pipeline assembly, wherein the first pipeline assembly is provided with a plurality of spray head installation openings, and each spray head installation opening is provided with a spray head. The application adopts gas detector and first temperature detecting element to monitor the battery package, and first fire extinguishing agent is sent into to the battery package when battery thermal runaway to the battery cooling, reaches the purpose to the battery package fire prevention.
Description
Technical Field
The application relates to the technical field of energy storage equipment, in particular to a battery energy storage device and a fire control system thereof.
Background
The lithium ion battery has the advantages of high energy density, high output voltage, long cycle life, small environmental pollution, high use flexibility, wide application scene and the like, and is widely used in the fields of power supply side energy storage, power grid measurement energy storage, user side energy storage, photovoltaic power generation energy storage and the like. However, the existing monitoring device of the battery energy storage device has the problem of inaccurate monitoring, and can only detect fire after the lithium ion battery energy storage device fires, and then extinguish the fire, once the fire is generated, equipment around the fire can be damaged.
Disclosure of Invention
In view of the above, the application provides a battery energy storage device and fire control system thereof, detects the temperature of every battery package through first temperature detecting element and whether gas detector detects the battery package and has gas release, can carry out more accurate monitoring to battery thermal runaway, reaches the purpose of battery package fire early warning.
In a first aspect, the present application provides a fire control system for a battery energy storage device comprising a container housing and a plurality of battery packs disposed within the container housing, the fire control system comprising:
the gas detector is arranged in the container shell and is used for detecting gas released by the battery pack;
the first temperature detection elements are arranged on the battery pack in a one-to-one correspondence manner;
the spray heads are corresponding to one battery pack and are used for spraying the first fire extinguishing agent to the battery pack;
the fire-fighting pipeline assembly comprises a first pipeline assembly, wherein the first pipeline assembly is provided with a plurality of nozzle mounting ports, and each nozzle mounting port is provided with a nozzle;
the controller, the gas detector and the first temperature detecting element are respectively connected with the controller in a communication way, and the controller is used for controlling the opening and closing of the nozzle mounting opening.
In this embodiment of the technical scheme, when the battery package thermal runaway, can produce gas, the gas that the gas detector can detect the battery Bao Re when out of control released, when detecting that there is gas in the container shell, it has been in thermal runaway state to indicate that the battery package, first temperature detecting element sets up on the battery package, utilize the temperature detection of first temperature detecting element to the battery package, can more accurately detect the temperature of battery package, whether thermal runaway takes place to the battery package can accurately be judged to the detected signal that combines gas detector and first temperature detecting element, when the temperature of battery package is higher, the battery package is likely to fire at any time, the shower nozzle installing port of the first pipeline subassembly of signal control that this moment controller can be gathered according to first temperature detecting element opens, make first fire extinguishing agent spout on the battery package through the shower nozzle, cool down to the battery package. When the first fire extinguishing agent is gas, fire prevention of the battery pack can also be achieved, and when the first fire extinguishing agent is liquid fire extinguishing agent, fire extinguishing of the battery pack can be achieved.
In some embodiments, the first conduit assembly comprises:
the first pipeline is provided with a plurality of spray head mounting ports;
a first fire suppression container in communication with the first conduit, the first fire suppression container configured to contain a first fire suppression agent;
the first valve is arranged on the first pipeline and is positioned at the upstream of the spray heads and the downstream of the first fire extinguishing container, the first valve is electrically connected with the controller, and the controller is used for controlling the opening and closing of the first valve.
The controller can control the first valve to act according to the signals collected by the first temperature detection element and the signals detected by the gas detector, so that the first fire extinguishing agent is sprayed out from the spray head to cool the battery pack, and the controller can be applied to fire prevention or fire extinguishment of the battery Bao Re in a out-of-control manner.
In some embodiments, the first fire suppression agent is a gaseous fire suppression agent.
Adopt gaseous fire extinguishing agent, when the battery Bao Re out of control does not take place the fire, let in first fire extinguishing agent to the battery package, cool down the battery package, can realize the fire prevention purpose of battery package, also can avoid the battery package to take place the short circuit simultaneously.
In some embodiments, the fire line assembly further comprises a second line assembly having a fire suppressant delivery outlet configured to deliver a second fire suppressant to the battery pack, the controller further configured to control opening and closing of the fire suppressant delivery outlet.
When the first fire extinguishing agent is introduced into the battery pack, the temperature of the battery is not reduced, the gas detector detects that the concentration of gas generated by the battery is increased, and the concentration of fire is reached, and at the moment, the second fire extinguishing agent is introduced into the battery pack through the second pipeline assembly, so that the battery pack is rapidly cooled.
In some embodiments, the second conduit assembly comprises:
a second valve;
the second pipeline is provided with a fire extinguishing agent input port and a fire extinguishing agent output port, the second pipeline is provided with a second valve, the second valve is electrically connected with the controller, and the controller is also used for controlling the opening and closing of the second valve so that the second fire extinguishing agent is sprayed out from the fire extinguishing agent output port;
a second fire suppression container in communication with the fire suppression agent input port, the second fire suppression container configured to contain a second fire suppression agent;
the suction pump is arranged on the second pipeline and used for sucking the second fire extinguishing agent from the second fire extinguishing container into the second pipeline and spraying the second fire extinguishing agent from the fire extinguishing agent output port, the suction pump is electrically connected with the controller, and the controller is also used for controlling the opening and closing of the suction pump.
The controller can control whether the second valve and the suction pump are opened according to the temperature signal detected by the first temperature detecting element and the smoke signal detected by the gas detector, when the temperature detected by the first temperature detecting element reaches the temperature corresponding to the ignition point, and the smoke concentration detected by the gas detector reaches the smoke concentration corresponding to the ignition point, the controller controls the second valve and the suction pump to be opened, the first valve is closed, and the aim of extinguishing the fire by the second extinguishing agent is fulfilled.
In some embodiments, the fire suppressant delivery outlet is in communication with the first conduit downstream of the first valve and upstream of the plurality of spray heads.
When the first valve is opened, the second valve and the suction pump are closed, the first fire extinguishing agent is sprayed out from the spray head, and when the first valve is closed, the second valve and the suction pump are opened, the second fire extinguishing agent is sprayed out from the spray head. Therefore, the second fire extinguishing agent and the first fire extinguishing agent can be sprayed out from the same spray head, and the number of spray heads can be saved.
In some embodiments, the second fire suppression agent is a liquid fire suppression agent.
The liquid extinguishing agent can be used for effectively cooling the battery pack.
In some embodiments, the sprinkler head is a fire sprinkler head having a heat sensitive element.
Because the fire-fighting spray head is provided with the thermosensitive element, when the temperature near the spray head is increased, the thermosensitive element is affected by the temperature, the spray head can be automatically opened, the first fire extinguishing agent or the second fire extinguishing agent in the spray head is sprayed out, the temperature reduction or fire extinguishing of the battery pack which is out of control only is realized, compared with the structure that the spray head sprays out the fire extinguishing agent entirely, the fire extinguishing agent can be saved, and meanwhile, the damage of the battery pack or equipment around the battery pack which generates heat (the short circuit of the battery pack can be caused when the liquid fire extinguishing agent is used for extinguishing) is avoided.
In some embodiments, the heat sensitive element comprises a glass element or a fusible element.
The fire-fighting nozzle with the glass element or the fusible element is more sensitive to temperature, when the battery pack is out of control, the temperature rises, the glass element breaks to open the fire-fighting nozzle, and the fire-fighting nozzle with the fusible element can open the fire-fighting nozzle in a melting mode, so that the reliability of fire extinguishment and fire prevention is ensured.
In some embodiments, the first temperature detecting element is a temperature sensing wire, and the battery pack has a pole, and the temperature sensing wire is connected with the pole.
When the battery pack is in thermal runaway, the current change is large, the temperature change of the polar column is obvious, the temperature sensing wire is connected with the polar column, whether the battery pack is in thermal runaway can be judged more accurately by detecting the temperature of the polar column, and whether the fire extinguishing agent is introduced into the battery pack by the fire control pipeline assembly is controlled, so that the purposes of preventing and controlling the fire of the battery pack more accurately and extinguishing fire are achieved.
In some embodiments, the fire control system further comprises a second temperature sensing element located within the container housing, the second temperature sensing element being communicatively coupled to the controller.
When the battery Bao Re is out of control and fires, the detection of the first temperature detection element probably fails, the second temperature detection element is arranged in the container shell, the temperature in the container shell can be monitored to determine whether fire occurs, when the fire occurs, the first fire extinguishing agent is indicated to prevent and control the battery pack from failing, at this time, the controller can control the second valve to open according to the trigger signal of the second temperature detection element, the first valve is closed, and the second fire extinguishing agent is adopted for extinguishing fire.
In some embodiments, the second temperature sensing element is located at the top within the container housing.
After the battery Bao Re is out of control and fires, the heat rises, and the second temperature detection element is located at the top in the container shell, so that the temperature detection in the container shell can be realized more quickly, and the fire can be quickly extinguished, and the fire is prevented from spreading.
In some embodiments, the gas detector is a carbon monoxide gas detector.
The concentration of carbon monoxide gas generated by the battery pack can be detected, when the battery pack generates carbon monoxide gas, the battery pack is indicated to have thermal runaway, the controller can control the first valve to be opened according to a trigger signal of the carbon monoxide gas detector, the second valve to be closed, the first fire extinguishing agent is sprayed into the box body of the battery pack from the spray head, the battery pack is cooled, or the first valve is controlled to be closed, the second valve is opened, the second fire extinguishing agent is adopted for extinguishing fire, and the temperature detected by the first temperature detecting element and the second temperature detecting element and the gas concentration value detected by the carbon monoxide gas detector are specifically needed to be combined for determination.
In some embodiments, the battery pack includes a housing with the spray head positioned within the housing.
The spray head is arranged in the box body of the battery pack, and can quickly cool after the fire extinguishing agent is introduced, thereby being beneficial to fire prevention or quick fire extinguishing.
In a second aspect, the present application provides a battery energy storage device comprising the fire control system of the first aspect.
Since the battery energy storage device includes the technical features of the fire control system of the first aspect, the effects are the same as those described above, and will not be described again here.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:
FIG. 1 is a schematic diagram of a fire control system of a battery energy storage device according to some embodiments of the present application, with only a portion of the structure of the container housing shown in FIG. 1;
FIG. 2 is a block diagram of a fire control system of a battery energy storage device;
FIG. 3 is a partial top view of a showerhead and electrode assembly positioned in a housing according to some embodiments of the present application;
FIG. 4 is a schematic diagram of a temperature sensing wire and pole connection according to some embodiments of the present application;
reference numerals in the specific embodiments are as follows:
the gas detector 10, the first temperature detecting element 20, the shower head 30, the fire-fighting piping assembly 40, the first piping assembly 41, the first piping 411, the first fire-extinguishing container 412, the first valve 413, the second piping assembly 42, the second valve 421, the second piping 422, the second fire-extinguishing container 423, the suction pump 424, the controller 50, the second temperature detecting element 60, the battery pack 70, the pole 71, the tank 72, the electrode assembly 73, the container housing 80.
Detailed Description
Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).
In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
The applicant notes that in the current battery energy storage device, after the battery is out of control, the occurrence of fire can only be detected after the battery energy storage device fires, and fire is extinguished after the battery fires, which can lead to the direct rejection of the battery, and the battery fires spread along with the fire, and can reach surrounding devices, so that the devices around the fire are damaged.
In order to solve the above problems, the applicant has studied and found that a first temperature detecting element and a gas detector can be used to monitor the battery pack, the first temperature detecting element is arranged on the battery pack, more accurate detection of the temperature of the battery pack can be realized, whether the battery is out of control or not is judged by combining whether the gas release is carried out on the battery pack detected by the gas detector, when the temperature of the battery pack detected by the first temperature detecting element is abnormal and higher than the normal working temperature of the battery pack, and the gas release is carried out on the battery detected by the gas detector, such as CO or H 2 When the temperature of the battery pack is higher, the battery pack may fire at any time, and the controller can control the nozzle mounting opening of the first pipeline component to be opened according to the signals collected by the first temperature detection element and the signals detected by the gas detector, so that the first fire extinguishing agent is sprayed on the battery pack through the nozzle to cool the battery pack. When the first fire extinguishing agent is gas, fire prevention of the battery pack can also be achieved, and when the first fire extinguishing agent is liquid fire extinguishing agent, fire extinguishing of the battery pack can be achieved.
For convenience of description, the following embodiments will take a fire control system of a battery energy storage device according to some embodiments of the present application as an example.
Referring to fig. 1-3, the battery energy storage device includes a container housing 80 and a plurality of battery packs 70 disposed in the container housing 80, and the fire control system includes a gas detector 10, a fire line assembly 40, a controller 50, a plurality of first temperature sensing elements 20, and a plurality of spray heads 30. Wherein the gas detector 10 is disposed in the container housing 80 for detecting the gas released from the battery pack 70. The first temperature detecting elements 20 are provided on the battery pack 70 in one-to-one correspondence. Each spray head 30 corresponds to one battery pack 70 for spraying the first fire extinguishing agent to the battery pack 70. The fire line assembly 40 includes a first line assembly 41, the first line assembly 41 having a plurality of spray head mounting ports, each spray head mounting port mounting a spray head 30. The gas detector 10 and the first temperature detecting element 20 are respectively connected with a controller 50 in a communication way, and the controller 50 is used for controlling the opening and closing of the nozzle mounting opening.
The plurality of battery packs 70 may be divided into a plurality of groups, each group of battery packs 70 being stacked together, and three groups of battery packs 70 are shown in fig. 1, with a plurality of battery packs 70 being stacked. The arrangement of the plurality of battery packs 70 according to the embodiment of the present application may be specifically set according to actual needs, and is not specifically limited herein.
The gas detector 10 may be disposed on the top of the container housing 80, on the side of the container housing 80, or on the casing 72 of the battery pack 70. The present utility model is not particularly limited herein.
The gas detector 10 is preferably arranged at the top in the container housing 80, so that on one hand, when the battery pack 70 fires, the gas concentration detection function can be realized, and the problem that the battery pack 70 arranged on the box body 72 is damaged by firing and cannot be monitored can be avoided. The gas detector 10 is positioned at the top within the container housing 80 and the gas rises generally upward as the fire progresses, making it easier to detect the concentration of the gas.
The battery module or battery cell may be mounted in the case 72 of the battery pack 70, and may be set according to the use requirement, which is not particularly limited herein.
The gas detector 10 may be, but is not limited to, a carbon monoxide gas detector 10, a hydrogen gas detector, a methane detector, and the like.
The first valve 413 may be a solenoid valve, a pneumatic valve, or an electric valve.
The controller 50 may be, but is not limited to, a fire alarm controller 50, a single chip microcomputer, a PLC controller 50, etc.
The spray head 30 may be a general spray head 30 or a fire spray head 30. The number of the spray heads 30 may be specifically set according to the number of the battery packs 70.
The first temperature detecting element 20 may be a contact type temperature sensor or a non-contact type temperature sensor. And may be, but not limited to, an infrared temperature sensor, a temperature sensing wire, etc.
Optionally, a valve may be installed between the nozzles 30 at the installation opening of each nozzle 30, and the controller 50 is electrically connected with the valve, so that the controller 50 may individually control the opening and closing of each valve, so as to individually open each nozzle 30, and may individually fire or extinguish fire of each battery pack 70.
When the gas detector 10 detects that the gas exists in the container housing 80, which indicates that the battery pack 70 is in a thermal runaway state, the first temperature detecting element 20 is disposed on the battery pack 70, the temperature of the battery pack 70 can be detected more accurately by detecting the temperature of the battery pack 70 with the first temperature detecting element 20, whether the battery pack is in thermal runaway can be accurately determined by combining the detection signals of the gas detector 10 and the first temperature detecting element 20, and when the temperature of the battery pack 70 is higher, the battery pack 70 may fire at any time, at this time, the controller 50 can control the nozzle mounting opening of the first pipeline assembly 41 to be opened according to the signal acquired by the first temperature detecting element 20 and the signal detected by the gas detector 10, so that the first fire extinguishing agent is sprayed on the battery pack 70 through the nozzle 30 to cool the battery pack 70. Fire prevention of the battery pack may also be achieved when the first fire extinguishing agent is a gaseous fire extinguishing agent, and fire extinguishing of the battery pack 70 may be achieved when the first fire extinguishing agent is a liquid fire extinguishing agent.
In some embodiments, referring to fig. 1, the first conduit assembly 41 includes a first conduit 411, a first fire suppression container 412, and a first valve 413. Wherein the first pipe 411 is provided with a plurality of head mounting ports for mounting the heads 30. The first fire suppression container 412 is in communication with the first conduit 411, the first fire suppression container 412 being configured to contain a first fire suppression agent. The first valve 413 is disposed on the first pipeline 411, the first valve 413 is located upstream of the plurality of spray heads 30 and downstream of the first fire extinguishing container 412, the first valve 413 is electrically connected to the controller 50, and the controller 50 is used for controlling opening and closing of the first valve 413.
Upstream refers to the inflow side of the fluid and downstream refers to the outflow side of the fluid, which may be a liquid or a gas.
The first fire extinguishing agent is loaded into the first fire extinguishing container 412 in various states such as a liquid state and a gas-liquid mixed state, and is not particularly limited herein.
The controller 50 can control the first valve 413 to act according to the signal collected by the first temperature detecting element 20 and the signal detected by the gas detector 10, so that the first fire extinguishing agent is sprayed out from the spray head 30 to cool the battery pack 70, and can be applied to fire prevention and fire extinguishing of thermal runaway of the battery pack 70. If the first fire extinguishing agent is a non-conductive fire extinguishing agent, the fire extinguishing agent is sprayed on the battery pack 70 to cool down when the battery pack 70 is out of control but does not fire, and can prevent fire, and the first fire extinguishing agent is a conductive fire extinguishing agent, and can extinguish fire when the battery pack 70 fires.
In some embodiments, the first fire suppression agent is a gaseous fire suppression agent.
The first fire suppressant may be, but is not limited to, a carbon dioxide fire suppressant, a heptafluoropropane fire suppressant, a nitrogen fire suppressant, and the like.
When the battery pack 70 is out of control and does not fire, the first fire extinguishing agent is introduced into the battery pack 70 to cool the battery pack 70, so that the purpose of fire prevention of the battery pack 70 can be achieved, and meanwhile, short circuit of the battery pack 70 can be avoided.
In some embodiments, referring to fig. 1, the fire line assembly 40 further includes a second line assembly 42, the second line assembly 42 having a fire suppressant delivery outlet configured to deliver a second fire suppressant to the battery pack 70, and the controller 50 further configured to control the opening and closing of the fire suppressant delivery outlet.
The fire agent outlet is configured to deliver a second fire extinguishing agent to the battery pack 70, and the second conduit assembly 42 may deliver the second fire extinguishing agent to the battery pack 70 alone or may deliver the second fire extinguishing agent to the first conduit assembly 41 and out of the spray head 30 through the first conduit assembly 41.
When the first fire extinguishing agent is introduced into the battery pack 70 and the temperature of the battery pack 70 is not reduced, the gas detector 10 detects that the concentration of the gas generated by the battery pack 70 is increased to reach the ignition concentration, and at this time, the second fire extinguishing agent is introduced into the battery pack 70 through the second pipeline assembly 42, so that the temperature of the battery pack 70 is rapidly reduced.
In some embodiments, referring to fig. 1, the second conduit assembly 42 includes a second valve 421, a second conduit 422, a second fire suppression container 423, and a suction pump 424. The second pipeline 422 is provided with a fire extinguishing agent input port and a fire extinguishing agent output port, the second pipeline 422 is provided with a second valve 421, the second valve 421 is electrically connected with the controller 50, and the controller 50 is further used for controlling the second valve 421 to be opened and closed so that the second fire extinguishing agent is sprayed out from the fire extinguishing agent output port. The second fire extinguishing vessel 423 is in communication with a fire extinguishing agent inlet, the second fire extinguishing vessel 423 being configured to contain a second fire extinguishing agent. The suction pump 424 is disposed on the second pipeline 422, and is used for sucking the second fire extinguishing agent from the second fire extinguishing container 423 into the second pipeline 422, and spraying the second fire extinguishing agent from the fire extinguishing agent output port, the suction pump 424 is electrically connected with the controller 50, and the controller 50 is also used for controlling the opening and closing of the suction pump 424.
The second valve 421 may be a solenoid valve, a pneumatic valve, or an electric valve.
It is understood that communicating in the embodiments of the present application refers to the two components being connected and communicating at the connection location.
The suction pump 424 may be a water pump.
The controller 50 can control whether the second valve 421 is opened according to the temperature signal detected by the first temperature detecting element 20 and the smoke signal detected by the gas detector 10, and when the temperature detected by the first temperature detecting element 20 reaches the temperature corresponding to the ignition point and the smoke concentration detected by the gas detector 10 reaches the smoke concentration corresponding to the ignition point, the controller 50 controls the second valve 421 and the suction pump 424 to be opened, and the first valve 413 is closed, so as to achieve the purpose of extinguishing the fire by the second extinguishing agent.
In some embodiments, referring to FIG. 1, the fire suppression agent outlet is in communication with the first conduit 411 and is downstream of the first valve 413 and upstream of the spray head 30.
When the first valve 413 is opened, the second valve 421 and the suction pump 424 are closed, the first extinguishing agent is sprayed from the spray head 30, and when the first valve 413 is closed, the second valve 421 and the suction pump 424 are opened, the second extinguishing agent is sprayed from the spray head 30. Thereby, the second fire extinguishing agent and the first fire extinguishing agent can be sprayed out from the same spray head 30, and the number of spray heads 30 can be saved.
In some embodiments, the second fire suppression agent is a liquid fire suppression agent.
The second fire extinguishing agent may be, but is not limited to, water and additives, foam extinguishing agent, and the like.
The liquid extinguishing agent can be used for effectively cooling the battery pack.
In some embodiments, spray head 30 is a fire spray head having a heat sensitive element.
Because the fire-fighting nozzle has the heat-sensitive element, when the temperature near the nozzle 30 is increased, the heat-sensitive element can be affected by the temperature, so that the nozzle can be automatically opened, the first fire-extinguishing agent or the second fire-extinguishing agent in the nozzle 30 can be sprayed out, the temperature reduction or fire extinguishing of the battery pack 70 which is out of control only can be realized, compared with the structure that the nozzle 30 completely sprays fire-extinguishing agent, the fire-extinguishing agent can be saved, meanwhile, the damage of the battery packs or equipment around the battery packs which generate heat can be avoided (the short circuit of the battery packs can be caused when the liquid fire-extinguishing agent is used for extinguishing fire, for example, the short circuit damage of all the battery packs 70 can be caused when the liquid fire-extinguishing agent is sprayed on all the battery packs 70).
In some embodiments, the heat sensitive element comprises a glass element or a fusible element.
For example, a fire nozzle with a glass element resistant to a temperature of 57 ° -80 ° may be selected, for example a fire nozzle with a red glass column may be selected, in particular according to the actual requirements.
Illustratively, taking a fire-fighting nozzle with a glass element as an example, since the fire-fighting nozzle 30 has a glass column, when the temperature near the nozzle 30 increases, the glass column may be broken, so that the fire-extinguishing agent in the nozzle 30 is sprayed out, and the first temperature detecting element 20 and the gas detector 10 may be prevented from generating false triggering signals, so as to achieve more reliable fire prevention and fire extinguishment for the battery pack 70.
Fire sprinklers having glass or fusible elements are more sensitive to temperature, and when the battery pack 70 is thermally out of control, the temperature rises, the glass element breaks to open the fire sprinklers, and the fusible elements open the fire sprinklers in a melting manner to ensure the reliability of fire extinguishing and fire prevention.
In some embodiments, referring to fig. 4, the first temperature detecting element 20 is a temperature sensing wire, and the battery pack 70 has a pole 71, and the temperature sensing wire is connected to the pole 71.
The battery pack 70 includes a battery module and a case 72, the battery module is disposed in the case 72, a pole 71 is disposed on an electrode assembly 73 of the battery module, a temperature sensing wire is connected to the pole 71, and particularly, a temperature sensing end of the temperature sensing wire is connected to the pole 71.
Since the temperature change of the pole 71 is obvious when the battery pack 70 is out of control due to the fact that the current change is large, the temperature sensing wire is connected with the pole 71, the temperature sensing wire is a contact type temperature sensor, the measured temperature is more accurate, the temperature sensing wire is connected with the pole 71, whether the battery pack 70 is out of control or not can be judged more accurately by detecting the temperature of the pole 71, and then the first valve 413 is controlled to be opened or closed, so that the purposes of preventing and controlling the fire disaster and fire extinguishment of the battery pack 70 more accurately are achieved.
In some embodiments, referring to fig. 1, the fire control system further includes a second temperature sensing element 60, the second temperature sensing element 60 being located within the container housing 80, the second temperature sensing element 60 being communicatively coupled to the controller 50.
The second temperature detecting element 60 may be a non-contact sensor, and may be, but is not limited to, an infrared temperature sensor, a constant temperature detector, a differential constant temperature detector, or the like.
When the battery pack 70 is heated out of control and fires, the first temperature detecting element 20 may fail to detect, the second temperature detecting element 60 is disposed in the container housing 80, so as to monitor the temperature in the container housing 80 to determine whether fire occurs, and when fire occurs, the first fire extinguishing agent is indicated to fail to control the battery pack 70, at this time, the controller 50 may control the second valve 421 and the suction pump 424 to open according to the trigger signal of the second temperature detecting element 60, the first valve 413 to close, and the second fire extinguishing agent is adopted to extinguish fire.
In some embodiments, referring to FIG. 1, the second temperature sensing element 60 is positioned at the top within the container housing 80.
After the thermal runaway of the battery pack 70 is ignited, the heat rises, and the second temperature detecting element 60 is located at the top inside the container housing 80, so that the temperature detection inside the container housing 80 can be more rapidly realized, thereby rapidly extinguishing the fire and avoiding the spread of the fire.
In some embodiments, the gas detector 10 is a carbon monoxide gas detector 10.
The concentration of carbon monoxide gas generated by the battery pack 70 can be detected, when the battery pack 70 generates carbon monoxide gas, which indicates that thermal runaway of the battery pack 70 has occurred, the controller 50 can control the first valve 413 to be opened and the second valve 421 to be closed according to the trigger signal of the carbon monoxide gas detector 10, so that the first fire extinguishing agent is sprayed into the box 72 of the battery pack 70 from the spray head 30, the battery pack 70 is cooled, or the first valve 413 is controlled to be closed and the second valve 421 is opened, and fire is extinguished by adopting the second fire extinguishing agent, wherein the temperature detected by the first temperature detecting element 20 and the second temperature detecting element 60 and the gas concentration detected by the carbon monoxide gas detector 10 are combined to determine.
In some embodiments, the battery pack 70 includes a housing 72 and the spray head 30 is located within the housing 72.
The spray head 30 is arranged in the box 72 of the battery pack 70, and can quickly cool after being filled with fire extinguishing agent, thereby being beneficial to fire prevention or quick fire extinguishing.
For convenience of description, referring to fig. 1-4, a fire control system of an energy storage device of a battery pack 70 according to some embodiments of the present application is described as an example.
The battery power storage device includes a container housing 80 and a plurality of battery packs 70 disposed within the container housing 80, and the fire control system includes a gas detector 10, a fire line assembly 40, a controller 50, a plurality of first temperature sensing elements 20, and a plurality of spray heads 30. Wherein the gas detector 10 is disposed in the container housing 80 for detecting the gas released from the battery pack 70. The first temperature detecting elements 20 are provided on the battery pack 70 in one-to-one correspondence. Each spray head 30 corresponds to one battery pack 70 for spraying the first fire extinguishing agent to the battery pack 70. The fire line assembly 40 includes a first line assembly 41, the first line assembly 41 having a plurality of spray head mounting ports, each spray head mounting port mounting a spray head 30. The gas detector 10 and the first temperature detecting element 20 are respectively connected with a controller 50 in a communication way, and the controller 50 is used for controlling the opening and closing of the nozzle mounting opening.
The first line assembly 41 includes a first line 411, a first fire suppression container 412, and a first valve 413. Wherein the first pipe 411 is provided with a plurality of head mounting ports for mounting the heads 30. The first fire suppression container 412 is in communication with the first conduit 411, the first fire suppression container 412 being configured to contain a first fire suppression agent. The first valve 413 is disposed on the first pipeline 411, the first valve 413 is located upstream of the plurality of spray heads 30 and downstream of the first fire extinguishing container 412, the first valve 413 is electrically connected to the controller 50, and the controller 50 is used for controlling opening and closing of the first valve 413.
The first fire extinguishing agent is a gaseous fire extinguishing agent. The second fire extinguishing agent is a liquid fire extinguishing agent.
The fire line assembly 40 further includes a second line assembly 42, the second line assembly 42 having a fire suppressant delivery outlet configured to deliver a second fire suppressant to the battery pack 70, and the controller 50 further for controlling the opening and closing of the fire suppressant delivery outlet.
The second line assembly 42 includes a second valve 421, a second line 422, a second fire suppression vessel 423, and a suction pump 424. The second pipeline 422 is provided with a fire extinguishing agent input port and a fire extinguishing agent output port, the second pipeline 422 is provided with a second valve 421, the second valve 421 is electrically connected with the controller 50, and the controller 50 is further used for controlling the second valve 421 to be opened and closed so that the second fire extinguishing agent is sprayed out from the fire extinguishing agent output port. The second fire extinguishing vessel 423 is in communication with a fire extinguishing agent inlet, the second fire extinguishing vessel 423 being configured to contain a second fire extinguishing agent. The suction pump 424 is disposed on the second pipeline 422, and is used for sucking the second fire extinguishing agent from the second fire extinguishing container 423 into the second pipeline 422, and spraying the second fire extinguishing agent from the fire extinguishing agent output port, the suction pump 424 is electrically connected with the controller 50, and the controller 50 is also used for controlling the opening and closing of the suction pump 424.
The first valve 413 and the second valve 421 may be solenoid valves, pneumatic valves, or electric valves.
The fire suppressant outlet is in communication with the first conduit 411 and is downstream of the first valve 413 and upstream of the spray head 30.
The sprinkler head 30 is a fire sprinkler head having a heat sensitive element including a glass element or a fusible element.
The first temperature detecting element 20 is a temperature sensing wire, and the battery pack 70 has a pole 71, and the temperature sensing wire is connected to the pole 71.
The fire control system further includes a second temperature sensing element 60, the second temperature sensing element 60 being located within the container housing 80, the second temperature sensing element 60 being in communication with the controller 50.
The second temperature sensing element 60 is located at the top within the container housing 80.
The battery pack 70 includes a housing 72, and the sprayer 30 is located within the housing 72.
The gas detector 10 may be, but is not limited to, a carbon monoxide gas detector 10, a hydrogen gas detector, a methane detector, and the like.
To facilitate understanding, the control process of the controller 50 is exemplified.
Acquiring a gas concentration value of the gas detector 10, a first temperature value of the first temperature detecting element 20, and a second temperature value of the second temperature detecting element 60;
when the gas concentration value is greater than or equal to the first preset concentration value and less than the second preset concentration value, and the first temperature value is greater than or equal to the first preset temperature value and less than the second preset temperature value, and the second temperature value is less than the third preset temperature value, the glass beads of the spray head 30 are melted, at this time, the battery pack 70 is thermally out of control but does not fire, the controller 50 controls the first valve 413 to open, and controls the second valve 421 and the suction pump 424 to close, the first fire extinguishing agent is sprayed from the spray head 30 to cool the battery pack 70, so as to prevent the battery pack 70 from firing.
When the gas concentration value is greater than the second preset concentration value and the second temperature value is greater than or equal to the third preset temperature value, the battery pack 70 is ignited at this time, the controller 50 controls the second valve 421 and the suction pump 424 to be opened, the first valve 413 to be closed, and the second fire extinguishing agent to be sprayed out from the spray head 30 to cool down and extinguish the fire of the battery pack 70.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (15)
1. A fire control system for a battery energy storage device, the battery energy storage device comprising a container housing and a plurality of battery packs disposed within the container housing, the fire control system comprising:
the gas detector is arranged in the container shell and is used for detecting the gas released by the battery pack;
the first temperature detection elements are arranged on the battery pack in a one-to-one correspondence manner;
the spray heads are corresponding to one battery pack and are used for spraying a first fire extinguishing agent to the battery pack;
the fire control pipeline assembly comprises a first pipeline assembly, wherein the first pipeline assembly is provided with a plurality of spray head mounting ports, and each spray head mounting port is provided with a spray head;
the gas detector and the first temperature detection element are respectively in communication connection with the controller, and the controller is used for controlling the opening and closing of the spray head mounting opening.
2. The fire control system of claim 1, wherein the first piping assembly comprises:
the first pipeline is provided with a plurality of spray head mounting ports;
a first fire suppression container in communication with the first conduit, the first fire suppression container configured to contain a first fire suppression agent;
the first valve is arranged on the first pipeline and is positioned at the upstream of the spray heads and the downstream of the first fire extinguishing container, the first valve is electrically connected with the controller, and the controller is used for controlling the opening and closing of the first valve.
3. The fire control system of claim 2, wherein the first fire suppression agent is a gaseous fire suppression agent.
4. The fire control system of claim 2, wherein the fire line assembly further comprises a second line assembly having a fire suppressant delivery outlet configured to deliver a second fire suppressant to the battery pack, the controller further configured to control opening and closing of the fire suppressant delivery outlet.
5. The fire control system of claim 4, wherein the second piping assembly comprises:
a second valve;
the second pipeline is provided with a fire extinguishing agent input port and a fire extinguishing agent output port, the second pipeline is provided with a second valve, the second valve is electrically connected with the controller, and the controller is also used for controlling the opening and closing of the second valve so that the second fire extinguishing agent is sprayed out from the fire extinguishing agent output port;
a second fire suppression container in communication with the fire suppression agent input port, the second fire suppression container configured to contain a second fire suppression agent;
the suction pump is arranged on the second pipeline and used for sucking the second fire extinguishing agent from the second fire extinguishing container to the second pipeline and spraying the second fire extinguishing agent from the fire extinguishing agent output port, the suction pump is electrically connected with the controller, and the controller is also used for controlling the opening and closing of the suction pump.
6. The fire control system of claim 5, wherein the fire suppressant delivery outlet is in communication with the first conduit downstream of the first valve and upstream of the plurality of sprinklers.
7. The fire control system of claim 4, wherein the second fire suppression agent is a liquid fire suppression agent.
8. A fire control system as claimed in any one of claims 1 to 7 wherein the sprinkler head is a fire sprinkler head having a heat sensitive element.
9. The fire control system of claim 8, wherein the heat sensitive element comprises a glass element or a fusible element.
10. The fire control system of any one of claims 1-7, wherein the first temperature sensing element is a temperature sensing wire, the battery pack having a pole, the temperature sensing wire being connected to the pole.
11. The fire control system of any one of claims 1-7, further comprising a second temperature sensing element located within the container housing, the second temperature sensing element being communicatively coupled to the controller.
12. The fire control system of claim 11 wherein the second temperature sensing element is located at a top portion within the container housing.
13. A fire control system as claimed in any one of claims 1 to 7 wherein the gas detector is a carbon monoxide gas detector.
14. The fire control system of any one of claims 1-7, wherein the battery pack has a housing, and the spray head is located within the housing.
15. A battery energy storage device comprising a fire control system of the battery energy storage device of any one of claims 1-14.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222945668.6U CN218944200U (en) | 2022-11-01 | 2022-11-01 | Battery energy storage device and fire control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222945668.6U CN218944200U (en) | 2022-11-01 | 2022-11-01 | Battery energy storage device and fire control system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116650870A (en) * | 2023-08-01 | 2023-08-29 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
| CN118477274A (en) * | 2024-07-09 | 2024-08-13 | 长安绿电科技有限公司 | Energy storage device and mobile energy storage equipment |
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2022
- 2022-11-01 CN CN202222945668.6U patent/CN218944200U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116650870A (en) * | 2023-08-01 | 2023-08-29 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
| CN116650870B (en) * | 2023-08-01 | 2023-10-03 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
| CN118477274A (en) * | 2024-07-09 | 2024-08-13 | 长安绿电科技有限公司 | Energy storage device and mobile energy storage equipment |
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