CN116487753A - Energy storage system - Google Patents
Energy storage system Download PDFInfo
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- CN116487753A CN116487753A CN202310437341.4A CN202310437341A CN116487753A CN 116487753 A CN116487753 A CN 116487753A CN 202310437341 A CN202310437341 A CN 202310437341A CN 116487753 A CN116487753 A CN 116487753A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 11
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical group FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 38
- 239000003792 electrolyte Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000000178 monomer Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides an energy storage system. The energy storage system includes: a plurality of battery packs (1), wherein each battery pack (1) is internally provided with a plurality of single batteries (2), and the first side of each battery pack (1) is provided with an exhaust port (3); the fire control subassembly, including fire control unit (4) and fire control pipeline, fire control unit (4) are through fire control pipeline and the inside intercommunication of battery package (1), and the intercommunication position of fire control pipeline and battery package (1) is the second side of battery package (1), and first side and second side are the opposite side of battery package (1). The energy storage system can avoid misjudgment of battery faults and reduce battery fault delay, can effectively avoid the influence of the fault battery pack on peripheral battery packs, and improves the fire safety of the energy storage system.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an energy storage system.
Background
The new energy power generation scale of wind power and the like is continuously enlarged, the peak regulation and frequency modulation requirements of the power grid side are increased, the construction scale of a lithium battery energy storage serving as a matched electric energy storage and regulating system is also continuously enlarged, and the lithium battery energy storage power station serving as a novel energy storage technology is widely popularized and applied on the new energy power generation side, the power grid side system and the user side. The energy storage system at least comprises a plurality of battery packs, each battery pack is formed by connecting a plurality of single batteries in series or in parallel, the single battery in each battery pack has low energy, but when a certain single battery is out of control, a large amount of heat radiation is generated, electrolyte is sprayed out, the temperature of the surrounding single battery is rapidly increased by the large amount of heat radiation, so that chain reaction is initiated, meanwhile, the creepage distance of the single battery is reduced by the sprayed electrolyte, high-voltage short circuit is extremely easy to be initiated, and further, more severe chain explosion occurs. Therefore, the traditional energy storage fire-fighting assembly can be used for fire-fighting the energy storage system through the heptafluoropropane, when a certain battery pack fails or is out of control, the heptafluoropropane fire-fighting assembly immediately plays a role in fire-fighting the whole energy storage box body, but the fire-fighting mode only can be applied to the surface of the battery pack and cannot be applied to the inside of the battery pack, so that fire in the battery pack cannot be prevented from spreading, and when the certain battery pack is completely combusted, the generated heat is enough to detonate the surrounding battery pack, so that the fire-fighting mode has extremely limited effect.
The patent application with the application number of CN202111404566.7 discloses an energy storage battery pack level immersion fire extinguishing system and a battery thermal runaway detection method, wherein cooling liquid of the energy storage system is used as fire-fighting liquid, when a battery is in a fire condition, the whole battery pack is completely immersed, so that the fire-fighting effect is achieved, but the mode still has potential safety hazards, because the main component of the fire-fighting liquid is water, the fire-fighting liquid is necessarily a conductor, when an electric battery is immersed in the conductor, short circuit occurs, although the cooling liquid can cool the single battery, a large amount of open fire cannot occur, the phenomenon of explosion and electrolyte splashing still can be caused when the single battery in the whole battery pack is detonated at the same time, the peripheral battery pack is extremely easy to cause high-voltage short circuit, and the potential safety hazards still exist.
Disclosure of Invention
The invention mainly aims to provide an energy storage system which can avoid misjudgment of battery faults and reduce battery fault delay, effectively avoid the influence of a fault battery pack on peripheral battery packs and improve the fire safety of the energy storage system.
To achieve the above object, according to an aspect of the present invention, there is provided an energy storage system comprising:
the battery pack comprises a plurality of battery packs, wherein each battery pack is internally provided with a plurality of single batteries, and the first side of each battery pack is provided with an exhaust port;
the fire-fighting assembly comprises a fire-fighting device and a fire-fighting pipeline, wherein the fire-fighting device is communicated with the inside of the battery pack through the fire-fighting pipeline, the communication position between the fire-fighting pipeline and the battery pack is the second side of the battery pack, and the first side and the second side are opposite sides of the battery pack.
Further, the battery pack comprises an external positive electrode and an external negative electrode, and the positive electrode and the negative electrode of the external positive electrode and the external negative electrode are positioned on the second side of the battery pack.
Further, the battery packs are horizontally arranged, the battery packs comprise a top surface, a bottom surface and a side surface, the external positive and negative electrodes of the battery packs and the exhaust port are all positioned on the side surface of the battery packs, the battery packs are divided into at least two groups, each group of battery packs are arranged in a row, the external positive and negative electrodes of the at least two groups of battery packs are opposite, and the exhaust port is opposite.
Further, the monomer positive and negative poles of the monomer battery are positioned at the top end of the monomer battery, the fire-fighting pipeline is connected to the upper part of the battery pack, the exhaust port is arranged at the lower part of the battery pack, and fire-fighting gas entering the battery pack through the fire-fighting pipeline flows through the monomer positive and negative poles of the monomer battery and is exhausted from the exhaust port.
Further, a heat insulation baffle is arranged between two adjacent battery packs, the heat insulation baffle separates the two adjacent battery packs, and the exhaust port of each battery pack faces the heat insulation baffle.
Further, the exhaust port is provided with an exhaust valve.
Further, the exhaust valve is a pressure relief valve or an electric control valve.
Further, the energy storage system further comprises a micro-grid controller, an air pressure detection device and a combustible gas concentration detection device are further arranged in the battery pack, and the micro-grid controller is electrically connected with the air pressure detection device, the combustible gas concentration detection device and the fire-fighting assembly.
Further, the fire-fighting pipeline comprises a fire-fighting main pipe and a plurality of fire-fighting branch pipes, each battery pack is connected with at least one fire-fighting branch pipe, the fire-fighting branch pipes are connected to the fire-fighting main pipe together, the fire-fighting main pipe is connected to the fire-fighting device, and electromagnetic valves are arranged on the fire-fighting branch pipes.
Further, the fire fighting gas in the fire fighting assembly is heptafluoropropane.
By applying the technical scheme of the invention, the energy storage system comprises: the battery pack comprises a plurality of battery packs, wherein each battery pack is internally provided with a plurality of single batteries, and the first side of each battery pack is provided with an exhaust port; the fire-fighting assembly comprises a fire-fighting device and a fire-fighting pipeline, wherein the fire-fighting device is communicated with the inside of the battery pack through the fire-fighting pipeline, the communication position of the fire-fighting pipeline and the battery pack is the second side of the battery pack, and the first side and the second side are opposite sides of the battery pack. This energy storage system offers the gas vent on the battery package to make the fire control pipeline and the intercommunication position of battery package and the position of gas vent on the battery package lie in the opposite side, can make fire control gas get into and fully flow through inside the battery package, take out the inside high heat and the electrolyte of trouble battery package, play effectual protection effect to the battery package, and can conveniently plan the exhaust route of high heat and electrolyte through the setting to the gas vent, avoid the exhaust waste liquid to lead to the battery package on every side to take place the secondary short circuit, effectively protect peripheral battery package, improve energy storage system safety in utilization. In addition, when a plurality of battery packs are used with the microgrid controller in a combined mode, the fire-fighting assembly can be controlled more accurately, the fault battery packs are subjected to accurate fire fighting, and the fire-fighting efficiency and accuracy are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 illustrates a system frame diagram of an energy storage system of an embodiment of the present invention;
FIG. 2 illustrates a schematic fire fighting structure of an energy storage system of an embodiment of the present invention; and
fig. 3 illustrates a battery pack internal structural diagram of an energy storage system of an embodiment of the present invention.
Wherein the above figures include the following reference numerals:
1. a battery pack; 2. a single battery; 3. an exhaust port; 4. a fire fighting device; 5. externally connecting an anode and a cathode; 6. a single positive electrode and a single negative electrode; 7. a thermal shield; 8. an exhaust valve; 9. a microgrid controller; 10. a fire-fighting main pipe; 11. fire branch pipes; 12. a solenoid valve.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring now to fig. 1-3 in combination, the present invention provides an energy storage system comprising: a plurality of battery packs 1, wherein each battery pack 1 is internally provided with a plurality of single batteries 2, and the first side of each battery pack 1 is provided with an exhaust port 3; the fire control subassembly, including fire control unit 4 and fire control pipeline, fire control unit 4 passes through fire control pipeline and the inside intercommunication of battery package 1, and the intercommunication position of fire control pipeline and battery package 1 is the second side of battery package 1, and first side and second side are the opposite side of battery package 1.
This energy storage system sets up gas vent 3 on battery package 1 to make fire control pipeline and the intercommunication position of battery package 1 and the position of gas vent 3 on battery package 1 lie in the opposite side, can make fire control gas get into and fully flow through inside the battery package 1, take out the inside high heat and the electrolyte of trouble battery package 1, play effectual protection effect to battery package 1, and can conveniently plan the discharge path of high heat and electrolyte through setting up gas vent 3, avoid the exhaust waste liquid to lead to battery package 1 on every side to take place the secondary short circuit, effectively protect peripheral battery package 1, improve energy storage system safety in utilization.
The energy storage system further comprises a micro-grid controller 9, each battery pack is formed by connecting a plurality of single batteries 2 in series or in parallel, and each battery pack is provided with a BMS for collecting information such as single voltage temperature and transmitting the information to the micro-grid controller 9, and the micro-grid controller 9 judges whether the single batteries 2 are abnormal or not.
In one embodiment, the battery pack 1 includes an external positive and negative electrode 5, the positive and negative electrodes of the external positive and negative electrode 5 being located on the second side of the battery pack 1. In this embodiment, the external positive and negative electrodes 5 are located at the outer side of the battery pack 1, so as to conveniently realize external connection of the battery pack 1. The anodes of the unit cells 2 inside the battery pack 1 are all connected to the anodes of the battery pack 1, and the cathodes of the unit cells 2 inside the battery pack 1 are all connected to the cathodes of the battery pack 1.
Through setting up the positive pole and the negative pole of external positive negative pole 5 at the second side of battery package 1, can make the hookup position of setting up of external positive negative pole 5 and the intercommunication position of fire control pipeline be located the same side of battery package 1, also make external positive negative pole 5 be located the fire control gas entering side of battery package 1, and keep away from gas vent 3 place side, therefore when fire control gas enters into in the battery package 1, can take away the high heat and the electrolyte that are located the external positive negative pole 5 place side of battery package 1 for high heat and electrolyte are discharged from keeping away from gas vent 3 of external positive negative pole 5, effectively avoid battery package 1 to take place the secondary short circuit after the trouble, effectively protect peripheral battery package 1.
In one embodiment, the battery packs 1 are horizontally placed, the battery packs 1 comprise a top surface, a bottom surface and side surfaces, the external positive and negative electrodes 5 and the exhaust ports 3 of the battery packs 1 are all located on the side surfaces of the battery packs 1, the battery packs 1 are divided into at least two groups, each group of battery packs 1 is arranged in a row, the external positive and negative electrodes 5 of the at least two groups of battery packs 1 are opposite, and the exhaust ports 3 are opposite.
In this embodiment, the plurality of battery packs 1 are arranged in the horizontal direction, and the battery pack 1 is laid flat, which means that the external positive and negative electrodes of the battery pack 1 are not located on the top surface or the bottom surface, but on the side surfaces.
The battery packs 1 are prevented from being grouped, the external positive and negative electrodes 5 of at least two groups of battery packs 1 are opposite, the exhaust ports 3 are opposite, namely, the external positive and negative electrodes 5 of the two groups of battery packs 1 point to the outer side, and the exhaust ports 3 point to the inner side. When fire-fighting gas enters any one of the two groups of battery packs 1, the fire-fighting gas flows from the side where the external positive electrode 5 and the external negative electrode 5 are located towards the side where the exhaust port 3 is located, and as the exhaust port 3 of the two groups of battery packs 1 is located at the interval position of the two groups of battery packs 1, the device for treating the combustible gas and the electrolyte can be conveniently arranged at the exhaust port 3, the combustible gas and the electrolyte exhausted from the exhaust port 3 can be conveniently and intensively treated, the treatment difficulty is reduced, and the fire-fighting to the fault battery can be more effectively carried out.
In one embodiment, the single positive and negative electrodes 6 of the single battery 2 are positioned at the top end of the single battery 2, the fire-fighting pipeline is connected to the upper part of the battery pack 1, the exhaust port 3 is arranged at the lower part of the battery pack 1, and fire-fighting gas entering the battery pack 1 through the fire-fighting pipeline flows through the single positive and negative electrodes 6 of the single battery 2 and then is discharged from the exhaust port 3.
Because the battery pack 1 is internally provided with the single battery 2 with the anode and the cathode which are arranged upwards, when the single battery 2 is subjected to thermal runaway liquid spraying, the fire-fighting air flow entering from the upper end flows out from the air outlet 3 at the lower end, so that the liquid spraying is carried out from the lower part, the electrolyte is prevented from adhering to the anode and the cathode surfaces of the single battery 2, the creepage distance is reduced, secondary short circuit is caused, the internal single battery 2 can be effectively protected, and the internal electrolyte can be effectively discharged from the air outlet 3 arranged at the lower end, so that the later-stage fault overhaul is convenient.
In one embodiment, a heat shield 7 is disposed between two adjacent groups of battery packs 1, the heat shield 7 spacing the two adjacent groups of battery packs 1 apart, the exhaust ports 3 of each battery pack 1 facing the heat shield 7.
In one embodiment, the exhaust port 3 is provided with an exhaust valve 8.
In one embodiment, the fire-fighting pipeline comprises a fire-fighting main pipe 10 and a plurality of fire-fighting branch pipes 11, wherein each battery pack 1 is connected with at least one fire-fighting branch pipe 11, the fire-fighting branch pipes 11 are commonly connected to the fire-fighting main pipe 10, the fire-fighting main pipe 10 is connected to the fire-fighting device 4, and each fire-fighting branch pipe 11 is provided with an electromagnetic valve 12.
The battery package 1 in the energy storage system is left and right sides symmetrical arrangement, and in the middle of it separates through thermal insulation baffle 7, the external positive negative pole 5 of all battery packages 1 all points to the outside, when trouble battery package 1 breaks down, fire control subassembly opens the solenoid valve 12 and the discharge valve 8 of problem battery package 1, fire control subassembly's fire control gas can be fast with the combustible gas or the electrolyte that produce when battery package 1 trouble to thermal insulation baffle 7 discharge, thermal insulation baffle 7 plays thermal insulation and protection's effect, can effectively avoid electrolyte or flame to spray on the battery package 1 of opposite to avoid loss of property and spreading of fire situation, the security has been improved.
In one embodiment, the exhaust valve 8 is a pressure relief valve or an electrically controlled valve. When the exhaust valve 8 is a pressure relief valve, a threshold is set, and when the fire-fighting gas pressure in the battery pack 1 reaches the threshold of the exhaust valve 8, the exhaust valve 8 is automatically opened to exhaust the fire-fighting gas in the battery pack 1, so that the explosion caused by the overlarge pressure in the battery pack 1 is avoided.
The micro-grid controller 9 is electrically connected with the exhaust valve 8, and the micro-grid controller 9 can control the exhaust valve 8 to open a valve when the battery pack 1 breaks down, and is used for discharging fire-fighting gas generated by a fire-fighting component and combustible gas or electrolyte generated when the battery pack 1 breaks down, and the combustible gas and the electrolyte are discharged from the side opposite to the side of the external positive electrode 5 and the external negative electrode 5 of the battery pack 1, so that secondary short circuit of the battery pack 1 after the battery pack 1 breaks down can be effectively avoided, and the peripheral battery packs 1 are effectively protected.
Each battery pack 1 is communicated to a fire-fighting main pipe 10 of a fire-fighting assembly through a fire-fighting branch pipe 11, electromagnetic valves 12 are arranged on the fire-fighting branch pipes 11 of each battery pack 1, when the micro-grid controller 9 judges that the single batteries 2 in one battery pack 1 are abnormal, the micro-grid controller 9 can control the fire-fighting assembly to spray fire-fighting gas, and simultaneously control the electromagnetic valves 12 corresponding to the battery packs 1 to be opened, the fire-fighting gas can reach the battery packs 1 with problems through the fire-fighting main pipe 10 and the fire-fighting branch pipes 11, and overall fire protection is carried out on the fault battery packs 1.
In one embodiment, the battery pack 1 is further provided with an air pressure detecting device and a combustible gas concentration detecting device, and the micro-grid controller 9 is electrically connected with the air pressure detecting device, the combustible gas concentration detecting device and the fire-fighting component.
The air pressure detection device and the combustible gas concentration detection device are electrically connected with the micro-grid controller 9 and are used for detecting the air pressure state and the combustible gas concentration state in the battery pack 1, when smoke or fire is generated in the battery pack 1 due to battery faults, the detection device transmits signals to the micro-grid controller 9, and the micro-grid controller 9 controls fire-fighting components according to the received signals, so that fire protection of the faulty battery pack 1 and protection of surrounding battery packs 1 are ensured.
In one embodiment, the fire gas within the fire assembly is heptafluoropropane. The heptafluoropropane has the characteristics of no color, no smell, low toxicity, no electric conduction and no pollution to the protected object, can not damage the single battery 2, and can not cause obstacle to the subsequent maintenance of the battery pack 1. The fire fighting gas may also be other gases with similar properties, such as nitrogen, etc.
In one embodiment, the BMS employs an STM32f4 family of microcontrollers and the MC employs an ARM-A8 processor.
In one embodiment, the heat-insulating baffle 7 is made of quartz plates, and has the advantages of fire resistance, heat insulation, corrosion resistance and low cost. The heat-insulating barrier 7 may be made of other materials having heat-insulating, fireproof and corrosion-resistant properties.
The energy storage system has the following beneficial effects:
1) The method has the advantages that the single batteries in the fault battery pack are effectively protected, high heat and electrolyte generated in the fault battery pack can be rapidly discharged, fire-fighting gas directly enters the battery pack through a fire-fighting main pipe and a fire-fighting branch pipe, a fire-fighting component can directly act on the inside of the battery pack and is controlled by a micro-grid controller, the fire-fighting component can rapidly, accurately and effectively fire the fault battery pack, meanwhile, the single batteries in the battery pack cannot be influenced, generated waste liquid can be discharged from top to bottom, and secondary short circuit of the single batteries in the battery pack caused by the waste liquid is avoided;
2) The influence of the fault battery pack on surrounding battery packs is avoided, and the exhaust valve is arranged on the opposite side of the external positive electrode and the external negative electrode of the battery pack, so that the high-voltage short circuit of the battery pack caused by the discharged electrolyte can be avoided, and the safety of the energy storage system is greatly improved;
3) The energy storage system has the advantages of high reuse rate, traditional fire-fighting mode, large damage to other reliable equipment and battery packs in the energy storage system, low economic effect and large property loss, and the energy storage system has the advantages of accurate fire-fighting and no damage to other equipment.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An energy storage system, comprising:
a plurality of battery packs (1), wherein each battery pack (1) is internally provided with a plurality of single batteries (2), and the first side of each battery pack (1) is provided with an exhaust port (3);
the fire control subassembly, including fire control unit (4) and fire control pipeline, fire control unit (4) pass through fire control pipeline with the inside intercommunication of battery package (1), fire control pipeline with the hookup location of battery package (1) is the second side of battery package (1), first side and second side are the opposite side of battery package (1).
2. The energy storage system of claim 1, wherein the battery pack (1) comprises an external positive and negative electrode (5), the positive and negative electrodes of the external positive and negative electrode (5) being located on the second side of the battery pack (1).
3. The energy storage system according to claim 2, wherein the battery packs (1) are horizontally arranged, the battery packs (1) comprise a top surface, a bottom surface and side surfaces, the external positive and negative electrodes (5) and the exhaust ports (3) of the battery packs (1) are all located on the side surfaces of the battery packs (1), the battery packs (1) are divided into at least two groups, each group of the battery packs (1) is arranged in a column, the external positive and negative electrodes (5) of the at least two groups of the battery packs (1) are opposite, and the exhaust ports (3) are opposite.
4. The energy storage system according to claim 3, wherein the single positive and negative electrodes (6) of the single battery (2) are positioned at the top end of the single battery (2), the fire-fighting pipeline is connected to the upper part of the battery pack (1), the air outlet (3) is arranged at the lower part of the battery pack (1), and fire-fighting gas entering the battery pack (1) through the fire-fighting pipeline flows through the single positive and negative electrodes (6) of the single battery (2) and then is discharged from the air outlet (3).
5. The energy storage system according to claim 4, wherein a heat insulation baffle (7) is arranged between two adjacent groups of the battery packs (1), the heat insulation baffle (7) separates the two adjacent groups of the battery packs (1), and the exhaust port (3) of each battery pack (1) faces the heat insulation baffle (7).
6. Energy storage system according to any of claims 1 to 5, characterized in that the exhaust port (3) is provided with an exhaust valve (8).
7. Energy storage system according to claim 6, characterized in that the exhaust valve (8) is a pressure relief valve or an electrically controlled valve.
8. The energy storage system according to any one of claims 1 to 5, further comprising a micro-grid controller (9), wherein an air pressure detection device and a combustible gas concentration detection device are further arranged in the battery pack (1), and the micro-grid controller (9) is electrically connected with the air pressure detection device, the combustible gas concentration detection device and the fire fighting assembly.
9. The energy storage system according to any one of claims 1 to 5, wherein the fire fighting pipeline comprises a fire main (10) and a plurality of fire branches (11), each of the battery packs (1) being connected with at least one of the fire branches (11), the fire branches (11) being commonly connected to the fire main (10), the fire main (10) being connected to the fire device (4), each of the fire branches (11) being provided with a solenoid valve (12).
10. The energy storage system of any of claims 1-5, wherein the fire gas within the fire assembly is heptafluoropropane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112086604A (en) * | 2020-10-19 | 2020-12-15 | 江苏时代新能源科技有限公司 | Battery, electric equipment, and method and device for preparing battery |
| CN112103443A (en) * | 2020-11-13 | 2020-12-18 | 江苏时代新能源科技有限公司 | Box, battery, electric equipment and battery manufacturing method |
| CN115472961A (en) * | 2022-10-17 | 2022-12-13 | 南通中集元能集成科技有限公司 | Energy storage container |
| CN218414920U (en) * | 2022-07-28 | 2023-01-31 | 宁德时代新能源科技股份有限公司 | Energy storage unit and energy storage device |
| CN218572691U (en) * | 2022-10-19 | 2023-03-07 | 武汉亿纬储能有限公司 | Energy storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086604A (en) * | 2020-10-19 | 2020-12-15 | 江苏时代新能源科技有限公司 | Battery, electric equipment, and method and device for preparing battery |
| CN112103443A (en) * | 2020-11-13 | 2020-12-18 | 江苏时代新能源科技有限公司 | Box, battery, electric equipment and battery manufacturing method |
| CN218414920U (en) * | 2022-07-28 | 2023-01-31 | 宁德时代新能源科技股份有限公司 | Energy storage unit and energy storage device |
| CN115472961A (en) * | 2022-10-17 | 2022-12-13 | 南通中集元能集成科技有限公司 | Energy storage container |
| CN218572691U (en) * | 2022-10-19 | 2023-03-07 | 武汉亿纬储能有限公司 | Energy storage system |
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