CN215275507U - Battery cabinet ventilation structure, detection system, fire extinguishing system and energy storage system - Google Patents
Battery cabinet ventilation structure, detection system, fire extinguishing system and energy storage system Download PDFInfo
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- CN215275507U CN215275507U CN202121814362.6U CN202121814362U CN215275507U CN 215275507 U CN215275507 U CN 215275507U CN 202121814362 U CN202121814362 U CN 202121814362U CN 215275507 U CN215275507 U CN 215275507U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a battery cabinet ventilation structure, detecting system, fire extinguishing system and energy storage system. The energy storage system comprises a fire fighting system and a battery cabinet. The battery cabinet comprises a battery pack. The fire protection system includes a detection system and a fire suppression system. The fire extinguishing system comprises a liquid storage tank, a fire pump, a fire fighting pipeline and a control valve, wherein the fire fighting pipeline is in fluid connection with the liquid storage tank and each battery pack, and the control valve is used for controlling the fire fighting pipeline. The detection system comprises a battery cabinet ventilation structure, a temperature sensor positioned in the battery pack, a gas detector positioned at the top of the battery cabinet ventilation structure and used for detecting combustible gas or/and smoke, and a control system in signal connection with the temperature sensor, the gas detector, the fire pump and the control valve. The battery cabinet ventilation structure comprises a gas channel which penetrates through the cabinet body of the battery cabinet from top to bottom and passes through part of the surface of each battery pack and a waterproof ventilation valve which is positioned in the gas channel, wherein the waterproof ventilation valve is arranged on the surface of each battery pack and used for releasing gas or/and smoke in the battery pack.
Description
Technical Field
The utility model relates to an energy storage battery cabinet fire control technical field, concretely relates to battery cabinet ventilation structure, detecting system, fire extinguishing system and energy storage system.
Background
In recent years, the lithium battery energy storage system is widely applied to various fields such as a user side, a power generation side, a power grid side, a new energy grid connection and a micro-grid due to the advantages of high energy density, long cycle life, high response speed, modularization and the like. The lithium ion battery is easily subjected to thermal runaway to cause fire because of self chemical reaction or external influence in the charging and discharging processes, so that special fire-fighting measures are needed to be adopted to ensure the safety of an energy storage system, and accident casualties and property loss are avoided.
At present, a gas fire extinguishing system or a water mist fire extinguishing system is mostly adopted in a fire fighting scheme of a lithium battery energy storage system. The gas fire extinguishing system is characterized in that a fire extinguishing gas storage tank is arranged in a battery cabinet, after a fire detecting pipe is burnt by flame or a smoke sensor acts, a large amount of fire extinguishing gas is sprayed out from a rupture or an air nozzle and fills the energy storage battery cabinet, and when the concentration of the fire extinguishing gas reaches a certain degree, fire can be extinguished. The water mist fire-fighting system is characterized in that a spray header is arranged above a battery cabinet, and when a fire occurs, a large amount of water is sprayed out to extinguish or cool the fire.
When the protection level of battery package is higher, for example reach IP66 or higher, above-mentioned fire extinguishing system all can't discover the condition of a fire in time, and put out a fire gas or thin water smoke can't directly get into the battery package in, lead to when the battery package burns out or explodes, above fire extinguishing system just begins to have the fire extinguishing effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery cabinet ventilation structure for the condition of a fire of short-term test high protection level battery package.
The battery cabinet ventilation structure comprises a cabinet body and battery packs arranged in the cabinet body, and the battery cabinet ventilation structure comprises a gas channel and a waterproof ventilation valve, wherein the gas channel penetrates through the cabinet body up and down and passes through part of the surface of each battery pack; the waterproof vent valve is positioned in the gas channel and arranged on the surface of each battery pack and used for releasing gas or/and smoke in the battery pack.
In one or more embodiments of the battery cabinet vent structure, the gas channel comprises a rib and two partitions; wherein: the battery pack is arranged in the cabinet body, the upper surface of the battery pack is connected with the convex rib in a sealing mode, or the cabinet body is internally provided with a plurality of battery packs, the convex rib is arranged between every two battery packs which are adjacent up and down, the two adjacent battery packs are respectively connected with the upper side and the lower side of the convex rib in a sealing mode, the convex rib is also connected to the upper surface of the uppermost battery pack in a sealing mode, and each convex rib comprises two outer ends opposite to the side wall of the cabinet body; the two partition plates are respectively arranged in the space between the side wall of the cabinet body and the battery pack opposite to the side wall of the cabinet body, and are respectively and hermetically connected with the two outer ends of each convex rib, each battery pack and the side wall of the cabinet body, so that the gas channel is limited.
In one or more embodiments of the battery cabinet ventilation structure, each of the ribs includes a first section of rib and a second section of rib that intersect perpendicularly, an intersection point of the first section of rib and the second section of rib is located in a non-boundary region of an upper surface or a lower surface of the battery pack, the first section of rib and the second section of rib are perpendicular to a first side wall and a second side wall of the cabinet body respectively, the first side wall and the second side wall are perpendicular to each other, and the two partition plates are connected to the first side wall and the second side wall respectively and perpendicularly.
In one or more embodiments of the battery cabinet ventilating structure, the rib is linear, the two outer ends are respectively opposite to a first side wall and a second side wall of the cabinet body, the first side wall and the second side wall are perpendicular to each other, and the two partition plates are respectively perpendicularly connected to the first side wall and the second side wall.
This battery cabinet ventilation structure's volume is far less than the volume of battery cabinet, and is linked together through waterproof ventilation valve with the inside of each battery package of battery cabinet, when the lithium cell in one of them or a plurality of battery package takes place the burning, produced high temperature combustible gas or/and smog get into gas passage through waterproof ventilation valve to flow upwards along this gas passage, reach the concentration that gas detector can detect fast at this gas passage's top, thereby can be fast, in time, accurately detect the condition of a fire of high protection level battery package. The battery cabinet ventilation structure is simple in structure, easy to machine and manufacture and low in cost.
Another object of the utility model is to provide a detecting system can the condition of a fire of high protection level battery package fast detection.
The detection system for achieving the purpose is used for an energy storage system, the energy storage system comprises a battery cabinet, the battery cabinet comprises a battery pack, a temperature sensor is arranged in the battery pack, the detection system comprises the battery cabinet ventilation structure, the temperature sensor, a gas detector and a control system, the gas detector is arranged at the top of the battery cabinet ventilation structure and is not lower than the waterproof ventilation valve arranged at the top, and the gas detector is used for detecting combustible gas or/and smoke; the control system is in signal connection with the temperature sensor and the gas detector, and is used for detecting combustible gas or/and smoke in the battery cabinet and the temperature in the battery pack in real time and judging whether combustion occurs or not.
This detecting system carries out real-time detection to combustible gas or/and smog through set up one or two gas detection wares in this battery cabinet ventilation structure, combines the temperature sensor's in the battery package real-time detection result, can be fast, timely, accurately detect the condition of a fire to in time take the measure of putting out a fire, prevent the condition of a fire at the very first time and worsen, avoid taking place more serious casualties and loss of property. The gas detector that this detecting system needs is less in quantity, and need not set up gas detector in the battery package, simple structure, easily realizes, and the cost is lower.
It is still another object of the present invention to provide a fire fighting system that can quickly detect the fire of a high protection level battery pack and extinguish the fire with high efficiency.
The fire fighting system for achieving the purpose is used for an energy storage system and comprises the detection system and a fire fighting system, wherein the fire fighting system comprises a liquid storage tank, a fire fighting pipeline, a fire fighting pump and a control valve; the liquid storage tank is used for storing a liquid fire-fighting medium; the fire fighting pipeline comprises a main pipeline and branch pipelines, the main pipeline is in fluid connection with the liquid storage tank, and the branch pipelines are located in the battery cabinet and are in fluid connection with each battery pack; the fire pump is used for pumping the liquid fire fighting medium from the liquid storage tank to the main pipeline; the control valve is arranged on the fire fighting pipeline and used for controlling the opening or closing of the main pipeline or/and the branch pipeline; wherein, the control system of the detection system is in signal connection with the fire pump and the control valve and is used for controlling the opening or closing of the fire pump and the control valve.
In one or more embodiments of the fire protection system, the branch line is provided with one control valve for each battery pack.
In one or more embodiments of the fire fighting system, a fan is further disposed on the top of the gas channel for exhausting gas or/and smoke in the gas channel out of the battery cabinet, and the fan is in signal connection with the control system.
In one or more embodiments of the fire fighting system, the fire fighting system further comprises a fire fighting controller, the control system being in signal connection with the fire fighting controller and controlling the fire pump and the control valve via the fire fighting controller.
This fire extinguishing system passes through detecting system and fire extinguishing system's mating reaction, can be fast, in time, accurately detect the condition of a fire of high protection level battery package, and in time take efficient fire extinguishing measures, response speed is fast, the fire extinguishing effect is good, can prevent the condition of a fire at the very first time from worsening, avoid taking place more serious casualties and loss of property, and can the greatly reduced liquid fire-fighting medium's quantity, reduce the occupation of land space of liquid reserve tank, practice thrift the fire control cost, and the in-process of putting out a fire does not produce harmful gas.
It is still another object of the present invention to provide an energy storage system which can rapidly detect the fire of a battery pack of high protection level and extinguish the fire with high efficiency.
The energy storage system for achieving the purpose comprises the fire fighting system.
In one or more embodiments of the energy storage system, the energy storage system includes a battery management system that provides the control system.
This energy storage system can be fast, timely, accurately detect the condition of a fire of high protection level battery package through adopting aforementioned fire extinguishing systems to in time take the efficient measure of putting out a fire, response speed is fast, and fire control effect is good, can prevent the condition of a fire to worsen in the very first time, avoids taking place more serious casualties and loss of property, and the fire control cost is lower, does not produce harmful gas among the fire extinguishing process.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a partial schematic view of a fire protection system according to one embodiment.
Fig. 2 is a schematic view of a partition and a cabinet with omitted portions of the structure according to an embodiment.
Fig. 3 is a schematic cross-sectional view of a battery cabinet vent structure according to one embodiment.
Fig. 4 is a schematic cross-sectional view of a battery cabinet vent structure according to yet another embodiment.
Fig. 5 is a schematic view of a bead and waterproof vent valve disposed on a battery pack according to one embodiment.
Fig. 6 is a schematic flow path diagram of a fire suppression system according to one embodiment.
FIG. 7 is a schematic diagram of control logic for a fire protection system according to one embodiment.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present invention. It is to be noted that the drawings are designed solely as examples and are not to scale, and should not be construed as limiting the scope of the invention as it is actually claimed. Furthermore, some of the features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
According to the utility model discloses an energy storage system of one or more embodiments includes fire extinguishing system 100 and one or more battery cabinet, and the battery cabinet can set up in the container or set up in the open air. Fig. 1 to 5 schematically show a partial structure of a fire fighting system 100 and a battery cabinet.
Each battery cabinet comprises a cabinet body 200 and a plurality of battery packs 1 arranged in the cabinet body 200, the plurality of battery packs 1 are correspondingly arranged on a plurality of supporting plates 205 in the cabinet body 200 one by one, gaps are reserved among the plurality of battery packs 1, for example, the intervals are 5mm, and the battery packs 1 are fixed in the cabinet body 200 through a front bracket (not shown) or other modes. Each battery pack 1 is provided with a temperature sensor (not shown) and a plurality of lithium batteries (not shown). The protection level of each battery pack 1 is high, for example, IP66 or more.
The fire protection system 100 includes a detection system 300 and a fire suppression system 400. The detection system 300 is used for detecting and judging whether the battery pack 1 is burnt in real time, and the fire extinguishing system 400 is used for extinguishing fire and reducing temperature, which will be described in detail later.
With continued reference to fig. 1-5, the detection system 300 includes a battery cabinet vent structure 500 disposed within the cabinet 200, the aforementioned temperature sensor within the battery pack 1, the gas detector 2, and a control system (not shown).
The battery cabinet venting structure 500 includes a gas channel 501 and a plurality of waterproof vent valves 4 located in the gas channel 501. The gas passage 501 extends through the cabinet 200 up and down and passes through a part of the surface of each battery pack 1. The upper surface 11 of each battery pack 1 is provided with one or more waterproof and breathable valves 4 for releasing gas or/and smoke generated during combustion of the lithium battery in the battery pack 1. In other embodiments, the waterproof vent valve 4 is disposed on other surfaces of the battery pack 1, such as on the side surface 14 of the battery pack 1.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 and 2.
With continued reference to fig. 1-5, the gas channel 501 includes a bead 3 and two baffles 5. The ribs 3 are disposed between every two adjacent battery packs 1, and the two adjacent battery packs 1 are hermetically connected to the upper and lower sides of the ribs 3, respectively (a small amount of gas leakage may be allowed), for example, by tightly fitting the case of the battery pack 1 to the ribs 3, or by adding a sealing member between the case of the battery pack 1 and the ribs 3, as will be described later in detail. Similarly, the rib 3 is also sealingly connected to the upper surface 11 of the uppermost battery pack 1. Each rib 3 comprises two outer ends 30 opposite the side walls 201 of the cabinet 200 for connection with the partition 5.
The underside of each rib 3 is fixedly and sealingly attached to the upper surface 11 of one of the battery packs 1, for example the rib 3 is integrally formed with the housing of the battery pack 1 or is welded, or glued or otherwise attached to the housing of the battery pack 1. The upper side of each rib 3 is connected to the top wall 202 of the battery pack 1 or the cabinet 200 adjacent to the upper side thereof by a sealing member (not shown). In an alternative embodiment, the ribs 3 are integrally formed, or welded, or bonded, or otherwise connected to the lower surface 11 of the battery pack 1 (the lower surface 11 of the lowermost battery pack 1 may not be connected to the ribs 3) and the upper surface 11 of the uppermost battery pack 1, and the positions of the sealing members are set correspondingly.
In another embodiment, the rib 3 is integrally formed with the separator 5, or welded, or bonded, or otherwise connected to the separator, and the upper and lower sides of the rib 3 are hermetically connected to the case of the battery pack 1 by a tight fit or a sealing member.
Alternatively, the plurality of ribs 3 are identical in shape and the position of each rib 3 relative to the corresponding battery pack 1 is identical, i.e., the outer ends 30 of the same side of each rib 3 are longitudinally aligned, respectively, for ease of manufacture and attachment to the separator 5.
In some embodiments, the ribs 3 are provided in the form of a sealing member, for example, the ribs 3 are made of rubber or foam, and the upper and lower sides of each rib 3 are connected to the top wall 202 of the adjacent battery pack 1 or the cabinet 200 by pressing or bonding.
In another embodiment, only one battery pack 1 is embedded in the cabinet 200, only one supporting plate 205 is provided, and the rib 3 is fixedly and hermetically connected to the upper surface 11 of the battery pack 1.
Referring to fig. 2, two partition plates 5 are respectively disposed in the space between the side wall 201 of the cabinet 200 and the battery pack 1 opposite to the side wall 201, and the partition plates 5 are further provided with notches 51 for avoiding the connecting edges 13 on the outer shell of the battery pack 1. The partitions 5 may be of unitary construction or may be formed of multiple segments, for example, when one of the partitions 5 is positioned past multiple layers of trays 205 within the cabinet 200, the partition 5 is divided into multiple segments by the trays 205. The separator 5 is sealingly connected to the outer end 30 of each rib 3, each battery pack 1, and the side wall 201, respectively, for example, in a manner similar to the previously described sealing connection between the battery pack 1 and the rib 3, thereby defining the gas channel 501. Most of the gas in the gas channel 501 can be guided to flow along the gas channel 501 by the sealed connections (the presence of a small amount of leakage can be tolerated) between the separator 5 and the outer end 30 of each rib 3, each battery pack 1, and the side wall 201, and the sealed connections (the presence of a small amount of leakage can be tolerated) between the battery pack 1 and the rib 3.
In some embodiments, the partition 5 is made of a wind-proof foam or rubber, one side of the partition 5 is bonded to the sidewall 201 of the cabinet 200, and other portions of the partition 5 are hermetically connected with other components by pressing or bonding.
In other embodiments, the partition 5 is made of sheet metal, is connected to the side wall 201 of the cabinet 200 by welding, is connected to the outer end 30 of the rib 3 and the outer casing of the battery pack 1 by providing a sealing member, and is connected to each sealing member by pressing or bonding.
Referring to fig. 3 and 5, in one embodiment, each rib 3 includes a first section rib 31 and a second section rib 32 that intersect perpendicularly, and the intersection point of the first section rib 31 and the second section rib 32 is located in a non-boundary region of the upper surface 11 of the battery pack 1, that is, the cross section of the rib 3 is L-shaped, and the included angle of the L-shape is located in the non-boundary region of the upper surface 11. The first rib 31 and the second rib 32 are perpendicular to the first sidewall 2011 and the second sidewall 2012 of the cabinet 200, respectively. Correspondingly, two partitions 5 are vertically connected to the first sidewall 2011 and the second sidewall 2012, respectively. The first sidewall 2011 and the second sidewall 2012 are perpendicular to each other. Therefore, the structure of the battery cabinet ventilation structure 500 can be simplified, and the processing and the manufacturing are convenient. In another alternative embodiment, the L-shaped rib 3 is disposed on the lower surface 12 of the battery pack 1, and the intersection of the first section rib 31 and the second section rib 32 is located in the non-boundary region of the lower surface 12.
Referring to fig. 4, in another embodiment, the rib 3 is linear, and the two outer ends 30 are respectively opposite to the first sidewall 2011 and the second sidewall 2012 of the cabinet 200. Correspondingly, two partitions 5 are vertically connected to the first sidewall 2011 and the second sidewall 2012, respectively. The first sidewall 2011 and the second sidewall 2012 are perpendicular to each other.
In other embodiments, the rib 3 is configured as a circular arc or other shape, and the two outer ends 30 of the rib 3 may be opposite to the same side wall of the cabinet 200, or respectively opposite to two adjacent side walls, or respectively opposite to two parallel side walls.
The volume of the battery cabinet ventilation structure 500 is far smaller than that of the cabinet body 200, and is communicated with the inside of each battery pack 1 of the cabinet body 200 through the waterproof ventilation valve 4, when the lithium battery in one or more battery packs 1 burns, the generated high-temperature combustible gas or/and smoke enters the gas channel 501 through the waterproof ventilation valve 4 and flows upwards along the gas channel 501, and the concentration which can be detected by the gas detector is quickly reached at the top of the gas channel 501, so that the fire condition of the battery pack with high protection level can be quickly, timely and accurately detected, which will be described in detail later. The battery cabinet ventilation structure 500 is simple in structure, easy to process and manufacture and low in cost.
Optionally, in the cabinet 200, the gas inside and outside the gas channel 501 is isolated from each other, that is, the gas inside the gas channel 501 is not communicated with the gas in the rest of the cabinet 200, so as to limit the gas or/and smoke generated by the combustion of the lithium battery in the gas channel 501, and further improve the detection timeliness and accuracy of the combustible gas or/and smoke. For example, two partition plates 5 extend from the top wall 202 to the bottom wall 203 of the cabinet 200, and are respectively connected with the top wall 202 and the bottom wall 203 in a sealing manner, the uppermost rib 3 is connected with the top wall 202 in a sealing manner, and the lowermost battery pack 1 is connected with the bottom wall 203 in a sealing manner through a sealing member, or a transverse partition plate may be arranged in the gas channel 501 to seal the top or/and the bottom of the gas channel 501.
Optionally, a fan 9 is further disposed on the top of the gas channel 501 for exhausting gas and/or smoke out of the battery cabinet, and the fan 9 is in signal connection with the control system of the detection system 300.
Referring to fig. 1, the gas detectors 2 of the detection system 300 are disposed on the top of the battery cabinet ventilation structure 500, and are not lower than the uppermost waterproof vent valve 4, that is, the waterproof vent valve 4 of the uppermost battery pack 1 is disposed, the number of the gas detectors 2 may be one, and the gas detectors are used for detecting combustible gas or smoke generated by combustion of a lithium battery, or the number of the gas detectors 2 may also be two, and the gas detectors are respectively used for detecting combustible gas and smoke generated by combustion of a lithium battery.
The control system of the detection system 300 is in signal connection with the gas detector 2 and the temperature sensor in the battery pack 1, and is used for detecting the combustible gas or/and smoke in the battery cabinet and the temperature in the battery pack 1 in real time and judging whether combustion occurs or not according to the detection result.
Compare in high temperature, the lithium cell just begins the produced combustible gas or/and smog when burning and can reflect the abnormal conditions of lithium cell earlier sometimes, this detecting system 300 is through setting up one or two gas detector 2 in this battery cabinet ventilation structure 500, carry out real-time detection to combustible gas or/and smog, combine the real-time detection result of the temperature sensor in the battery package 1, can be fast, in time, accurately detect the condition of a fire, so that in time take the measure of putting out a fire, prevent the condition of a fire from worsening in the very first time, avoid taking more serious casualties and loss of property. The detection system 300 needs fewer gas detectors 2, does not need to arrange the gas detectors 2 in the battery pack 1, and is simple in structure, easy to implement and low in cost.
With continued reference to fig. 1, the fire suppression system 400 includes a tank 6, a fire line 7, a fire pump 8, and a control valve (not shown). Wherein the fire pump 8 and the control valve are in signal connection with the control system of the detection system 300 to control the opening or closing of the fire pump 8 and the control valve by the control system. Optionally, the control valve is a solenoid valve, so as to be controlled by the control system.
The reservoir 6 is used to store a liquid fire-fighting medium, such as water or other liquid that is temperature-lowering, fire-retardant, non-volatile, and non-toxic. The reservoir 6 is provided outside the battery cabinet, and may be buried in the ground, or may be provided in an open-air pool, sink, or other form, for example.
The fire fighting pipeline 7 includes a main pipeline 71 and a branch pipeline 72. The main conduit 71 is in fluid connection with the tank 6 via a fire pump 8, the fire pump 8 being adapted to pump liquid fire fighting medium from the tank 6 to the main conduit 71. The branch pipeline 72 is located in the battery cabinet and is in fluid connection with each battery pack 1, and is used for injecting liquid fire-fighting medium into the battery pack 1 to extinguish fire and reduce temperature.
Referring to fig. 2, the cabinet 200 is provided with a port 204, the main conduit 71 is fluidly connected to the branch conduit 72 through the port 204, and the number of ports on the cabinet 200 can be reduced by disposing the branch conduit 72 in the battery cabinet.
The control valve is disposed on the main pipeline 71 or/and the branch pipeline 72, and is used for controlling the opening or closing of the main pipeline 71 or/and the branch pipeline 72. According to the storage capacity of fire control demand and liquid fire-fighting medium, can set up the quantity and the position of control valve in a flexible way, for example can only set up the control valve on main line 71, when taking place danger, all pour into liquid fire-fighting medium into to all battery packages 1 in this battery cabinet and put out a fire and cool down, or also can respectively set up a control valve corresponding to every battery package 1 on branch pipeline 72, with the battery package 1 to having a fire or having the risk of having a fire implements quick fixed point fire extinguishing measures, and do not exert an influence to the battery package 1 that does not take place unusually, thereby ensure that other battery packages 1 still can normal use, and reduce the quantity of liquid fire-fighting medium.
The control logic and operation of the fire protection system 100 is described below in connection with one embodiment:
1. referring to fig. 7, the detection system 300 detects combustible gas and smoke in the battery cabinet and the temperature T in the battery pack 1 in real time through the gas detector 2 and the temperature sensor in the battery pack 1, when one or more battery packs 1 in the battery cabinet are abnormal, the temperature T in the abnormal battery pack 1 rises, the combustible gas or/and smoke overflows from the waterproof vent valve 4 to the battery pack 1 and enters the gas channel 501 of the battery cabinet ventilation structure 500, and the detection system 300 detects that the combustible gas or smoke exists in the gas channel 501 or/and detects that the temperature T in the abnormal battery pack 1 is greater than or equal to a preset temperature TMAXThe control system judges the abnormal battery pack 1 according to the detection result;
2. referring to fig. 6 and 7, the control system starts the fire pump 8, opens the corresponding control valve and the fan 9, pumps the liquid fire-fighting medium from the liquid storage tank 6 to the main pipeline 71, and then conveys the liquid fire-fighting medium to the branch pipeline 72 in the battery cabinet, under the control of the control valve, injects the liquid fire-fighting medium into the abnormal battery pack 1 for fire extinguishing and temperature reduction, and discharges the residual gas out of the battery pack 1 from the waterproof vent valve 2, enters the gas channel 501, and further discharges the gas or/and smoke out of the battery cabinet through the fan 9.
Because the protection level of battery package 1 is higher, and the leakproofness is good, after liquid fire control medium got into battery package 1, can be full of whole battery package 1 fast, make electric core and all electric connection piece submerge completely in liquid fire control medium to put out a fire and cool down fast effectively, prevent that the lithium cell from taking place to reburn, and the in-process of putting out a fire does not produce harmful gas.
From this, this fire extinguishing system 100 passes through detecting system 300 and fire extinguishing system 400's combined action, can be fast, timely, accurately detect the condition of a fire of high protection level battery package 1 to in time take the efficient measure of putting out a fire, response speed is fast, and fire control effect is good, can prevent the condition of a fire at the very first time and worsen, avoids taking place more serious casualties and loss of property. In addition, because liquid fire-fighting medium only needs to fill up the space in one or more battery package 1, need not be full of whole battery cabinet, the quantity of liquid fire-fighting medium that can significantly reduce reduces the occupation of land space of liquid reserve tank 6, practices thrift the fire control cost, and does not produce harmful gas among the fire extinguishing process.
Optionally, the battery cabinet is disposed in the container, and the fire fighting system 100 further includes a system air duct (not shown) disposed in the container and communicating with the outside of the container. After entering the gas channel 501, the gas and/or smoke generated by combustion are drawn into the system air duct by the fan 9, and then discharged into the atmosphere through the system air duct or into the air treatment system.
Optionally, the fire extinguishing system 400 further comprises a fire fighting controller (not shown) for controlling the fire pump 8 and the control valve, and the control system of the detection system 300 is in signal connection with the fire fighting controller for controlling the fire pump 8 and the control valve by the fire fighting controller. The fire controller may be provided by a supplier along with the reservoir 6, the fire pipe 7, the fire pump 8, and the control valve, etc., so as to make full use of the mature commercial products to simplify the manufacturing process of the fire fighting system 100.
According to the utility model discloses embodiment's energy storage system is through adopting aforementioned fire extinguishing system 100, can be fast, in time, accurately detect the condition of a fire of high protection level battery package to in time take the efficient measure of putting out a fire, response speed is fast, and fire control effect is good, can prevent that the condition of a fire from worsening in the very first time, avoids taking place more serious casualties and loss of property, and the fire control cost is lower, does not produce harmful gas among the fire extinguishing process.
This energy storage system can set up one or more liquid reserve tank 6 according to the quantity of battery cabinet, fire control demand and the memory space of liquid fire-fighting medium etc. and every liquid reserve tank 6 can with a plurality of battery cabinet fluid coupling, and every liquid reserve tank 6 is through a fire pump 8 and a plurality of main line 71 fluid coupling promptly, a plurality of main line 71 respectively with a plurality of interior branch pipeline 72 fluid intercommunication of battery cabinet.
Optionally, the energy storage system includes a battery management system that provides a control system of the detection system 300, so that the control structure of the energy storage system can be simplified.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (11)
1. Battery cabinet ventilation structure, the battery cabinet includes the cabinet body and places in the battery package of the cabinet body, its characterized in that, battery cabinet ventilation structure includes:
the gas channel penetrates through the cabinet body up and down and passes through part of the surface of each battery pack; and
and the waterproof vent valve is positioned in the gas channel and arranged on the surface of each battery pack and used for releasing gas or/and smoke in the battery pack.
2. The battery cabinet vent structure of claim 1, wherein the gas channel comprises a rib and two partitions; wherein:
the battery pack is arranged in the cabinet body, the upper surface of the battery pack is connected with the convex rib in a sealing mode, or the cabinet body is internally provided with a plurality of battery packs, the convex rib is arranged between every two battery packs which are adjacent up and down, the two adjacent battery packs are respectively connected with the upper side and the lower side of the convex rib in a sealing mode, the convex rib is also connected to the upper surface of the uppermost battery pack in a sealing mode, and each convex rib comprises two outer ends opposite to the side wall of the cabinet body;
the two partition plates are respectively arranged in the space between the side wall of the cabinet body and the battery pack opposite to the side wall of the cabinet body, and are respectively and hermetically connected with the two outer ends of each convex rib, each battery pack and the side wall of the cabinet body, so that the gas channel is limited.
3. The battery cabinet vent structure of claim 2, wherein each rib comprises a first section rib and a second section rib that intersect perpendicularly, an intersection of the first section rib and the second section rib is located at a non-boundary region of the upper surface or the lower surface of the battery pack, the first section rib and the second section rib are perpendicular to a first side wall and a second side wall of the cabinet body, respectively, the first side wall and the second side wall are perpendicular to each other, and the two partitions are perpendicularly connected to the first side wall and the second side wall, respectively.
4. The battery cabinet ventilating structure of claim 2, wherein the ribs are linear, the two outer ends are respectively opposite to a first side wall and a second side wall of the cabinet body, the first side wall and the second side wall are perpendicular to each other, and the two partitions are respectively and perpendicularly connected to the first side wall and the second side wall.
5. Detection system for energy storage system, energy storage system includes the battery cabinet, the battery cabinet includes the battery package, be provided with temperature sensor in the battery package, its characterized in that, detection system includes:
the battery cabinet vent structure of any one of claims 1 to 4;
the temperature sensor;
the gas detector is arranged at the top of the battery cabinet ventilation structure and is not lower than the waterproof ventilation valve arranged at the top, and the gas detector is used for detecting combustible gas or/and smoke; and
and the control system is in signal connection with the temperature sensor and the gas detector, and is used for detecting the combustible gas or/and smoke in the battery cabinet and the temperature in the battery pack in real time and judging whether combustion occurs or not.
6. A fire protection system for an energy storage system, the fire protection system comprising the detection system of claim 5, and a fire suppression system, the fire suppression system comprising:
the liquid storage tank is used for storing a liquid fire-fighting medium;
the fire fighting pipeline comprises a main pipeline and branch pipelines, the main pipeline is in fluid connection with the liquid storage tank, and the branch pipelines are located in the battery cabinet and are in fluid connection with each battery pack;
a fire pump for pumping the liquid fire fighting medium from the tank to the main pipeline; and
the control valve is arranged on the fire fighting pipeline and used for controlling the opening or closing of the main pipeline or/and the branch pipeline;
wherein, the control system of the detection system is in signal connection with the fire pump and the control valve and is used for controlling the opening or closing of the fire pump and the control valve.
7. A fire fighting system as defined in claim 6, wherein said branch conduit is provided with one said control valve for each said battery pack.
8. A fire fighting system as defined in claim 6, wherein a fan is further provided at the top of the gas duct for exhausting gas or/and smoke in the gas duct out of the battery cabinet, the fan being in signal connection with the control system.
9. A fire fighting system as defined in any of claims 6 to 8, characterized in that the fire fighting system further comprises a fire fighting controller, the control system being in signal connection with the fire fighting controller and controlling the fire pump and the control valve by means of the fire fighting controller.
10. Energy storage system, characterized in that it comprises a fire fighting system according to any of claims 6 to 9.
11. The energy storage system of claim 10, wherein the energy storage system comprises a battery management system, the battery management system providing the control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121814362.6U CN215275507U (en) | 2021-08-04 | 2021-08-04 | Battery cabinet ventilation structure, detection system, fire extinguishing system and energy storage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190817A (en) * | 2023-01-30 | 2023-05-30 | 北京索科曼正卓智能电气有限公司 | Industrial lithium battery safety management method and device, electronic equipment and medium |
| CN118380684A (en) * | 2024-06-19 | 2024-07-23 | 南京创源动力科技有限公司 | Energy storage cabinet and electricity storage system |
-
2021
- 2021-08-04 CN CN202121814362.6U patent/CN215275507U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190817A (en) * | 2023-01-30 | 2023-05-30 | 北京索科曼正卓智能电气有限公司 | Industrial lithium battery safety management method and device, electronic equipment and medium |
| CN116190817B (en) * | 2023-01-30 | 2024-02-06 | 北京索科曼正卓智能电气有限公司 | Industrial lithium battery safety management method and device, electronic equipment and medium |
| CN118380684A (en) * | 2024-06-19 | 2024-07-23 | 南京创源动力科技有限公司 | Energy storage cabinet and electricity storage system |
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