CN117599374A - A multifunctional fire protection system and method for electrochemical energy storage systems - Google Patents
A multifunctional fire protection system and method for electrochemical energy storage systems Download PDFInfo
- Publication number
- CN117599374A CN117599374A CN202311583476.8A CN202311583476A CN117599374A CN 117599374 A CN117599374 A CN 117599374A CN 202311583476 A CN202311583476 A CN 202311583476A CN 117599374 A CN117599374 A CN 117599374A
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- level
- fire
- extinguishing device
- pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to two or more of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to two or more of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- 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
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
本发明公开了一种针对电化学储能系统的多功能消防防护系统及方法，包括储能集装箱、PACK级灭火装置和安装级灭火装置，所述储能集装箱内设有安装级消防子系统，每个所述电池PACK箱上皆设有PACK级消防子系统；所述安装级消防子系统包括设于集装箱内的通电探测组件、气体灭火控制器、安装级灭火装置、报警设备和防爆通风系统，通电探测组件通过对应的气体灭火控制器与对应的安装级灭火装置形成延时启动配合，通电探测组件与对应的报警设备和防爆通风系统形成启动配合；每个PACK级消防子系统包括物理探测组件与对应的PACK级灭火装置，物理探测组件与对应的PACK级灭火装置形成启动配合。多级配合，提高效果，减少成本。
The invention discloses a multifunctional fire protection system and method for electrochemical energy storage systems, which includes an energy storage container, a PACK level fire extinguishing device and an installation level fire extinguishing device. The energy storage container is equipped with an installation level fire protection subsystem. Each battery PACK box is equipped with a PACK level fire subsystem; the installation level fire subsystem includes a power detection component, a gas fire extinguishing controller, an installation level fire extinguishing device, an alarm equipment and an explosion-proof ventilation system located in the container , the power-on detection component forms a delayed start cooperation with the corresponding installation-level fire extinguishing device through the corresponding gas fire extinguishing controller, and the power-on detection component forms a start-up cooperation with the corresponding alarm equipment and explosion-proof ventilation system; each PACK level fire subsystem includes physical detection The component and the corresponding PACK-level fire extinguishing device form a startup cooperation, and the physical detection component and the corresponding PACK-level fire extinguishing device form an activation cooperation. Multi-level cooperation improves results and reduces costs.
Description
Technical Field
The invention relates to the technical field of energy storage container fire protection, in particular to a multifunctional fire protection system and method for an electrochemical energy storage system.
Background
According to the incomplete statistics of CNESA, more than 70 energy storage safety accidents occur in a global accumulation mode from 2011. Even after more than ten years of development, 17 global energy storage safety accidents still occur in 2022, and several household energy storage accidents also occur abroad. Except that 1 accident item is a lead storage battery, all are lithium ion batteries. Along with the rapid increase of the capacity of an energy storage machine, the potential safety hazard of energy storage is also continuously increased, and the safety becomes a bottleneck for restricting the further development of the lithium ion battery energy storage industry.
For industrial and commercial energy storage, the energy storage system has a large capacity, and once thermal runaway occurs, chemical reactions continue to take place, and heat is continuously released, including the generation of various flammable gases. It is particularly important for fire protection for early detection. And the challenges of fire suppression systems are also significant for system integration.
For larger energy storage containers, the following problems exist in the fire fighting process:
1. the system generally relies on the monitoring device to transmit data so as to judge whether a fire condition exists, the monitoring device generally uses detection devices such as a sensor, and the like, and in the situation that the battery pack has fire, the detector is easy to damage, so that the cost in the fire protection and prevention process is increased;
2. in the monitoring process, the detector calculates the set number according to the cost, the main monitoring range depends on the induction end, when the ignition symptom exists in the range far away from the induction end, a certain time is required for the temperature in the range of the induction end to reach the set value, the detection has slight hysteresis, the fire source cannot be accurately processed in time, the false alarm rate of the detection module is high, and the detection modules such as a smoke sensor, a temperature sensor and a combustible gas sensor need a certain time from the signal transmission of the ignition point to the induction reflection and exceeding the set value;
3. the detection device leads in extra electrical elements in the battery cluster, when the battery cells are out of control, a large amount of combustible gas overflows from the pressure release valve, and secondary fire disaster can be caused by the contact of the electrical elements such as the detector and the like with the combustible gas under the influence of fire, so that potential safety hazards exist;
4. the detection module belongs to electronic components, regular maintenance and inspection are needed, the installation space in the battery PACK box is limited, the number of the battery PACK boxes in the large-scale energy storage container is large, and the installation and maintenance are inconvenient;
5. when the device is used for processing, the smoke feeling, the temperature feeling and the combustible gas are judged for one time, and an intelligent fire-fighting system for comprehensively utilizing information is lacked;
6. aiming at the fire protection of a large energy storage container, a delay function is needed, so that the evacuation and preliminary confirmation time is saved;
7. the function is single, and different processing modes are needed according to different situations.
Disclosure of Invention
The invention provides a multifunctional fire protection system and method for an electrochemical energy storage system, and aims to solve the problems of high cost, potential safety hazard, root fire detection reaction lag, high false alarm rate, inconvenient maintenance and installation, single judgment information processing and time delay in the fire protection process of the large energy storage container.
In order to solve the technical problems, the invention adopts the following technical scheme: the multifunctional fire protection system comprises an energy storage container, a PACK-level fire extinguishing device and an installation-level fire extinguishing device, wherein a plurality of battery clusters are arranged in the energy storage container, a plurality of battery PACK boxes are arranged in each battery cluster, an installation-level fire protection subsystem for the whole fire protection of the energy storage container is arranged in the energy storage container, the installation-level fire protection subsystems are in one-to-one correspondence with container bodies, each battery PACK box is provided with a PACK-level fire protection subsystem for the fire protection of a single battery PACK box, and the PACK-level fire protection subsystems are in one-to-one correspondence with the battery PACK boxes;
the installation-level fire-fighting subsystem comprises an electrifying detection assembly, a gas fire-extinguishing controller, an installation-level fire-extinguishing device, alarm equipment and an explosion-proof ventilation system which are arranged in the container, wherein the electrifying detection assembly forms delayed starting coordination with the corresponding installation-level fire-extinguishing device through the corresponding gas fire-extinguishing controller, a nozzle of the installation-level fire-extinguishing device faces to a battery cluster in the container, and the electrifying detection assembly forms starting coordination with the corresponding alarm equipment and the explosion-proof ventilation system through the corresponding gas fire-extinguishing controller;
every PACK level fire control subsystem includes physical detection subassembly and the PACK level extinguishing device who corresponds, PACK level extinguishing device locates on the battery PACK case that corresponds, and PACK level extinguishing device's spout covers battery PACK case, and physical detection subassembly is along case internal surface evenly distributed, and physical detection subassembly forms the start-up cooperation with the PACK level extinguishing device who corresponds.
Preferably, the power-on detection assembly comprises a temperature sensing detector, a smoke sensing detector, a CO detector and a hydrogen detector, and the alarm device comprises an audible and visual alarm and an alarm bell.
More preferably, when the value of the electric signal after the smoke detector detects smoke exceeds a set value, the gas fire extinguishing controller receives the electric signal of the detector to form a first-level early warning signal to the control center, and the audible and visual alarm reminds personnel to carry out emergency treatment.
Further, when the electric signal values detected by the smoke detector and the temperature detector exceed the set values, the gas fire extinguishing controller receives the electric signals of the detectors to form a secondary early warning signal, the secondary early warning signal is transmitted to the control center, the audible and visual alarm and the alarm bell are started, and the gas fire extinguishing controller forms the secondary early warning signal and then delays to send a starting signal to the installation-level fire extinguishing device.
Furthermore, the gas fire-extinguishing controller is used for adjusting the time delay time length and is also connected with a start button and an emergency stop button.
Specifically, when the electrical signal value after any one of the CO detector and the hydrogen detector detects the corresponding combustible gas exceeds a set value, an explosion-proof ventilation system is started, and the concentration of the combustible gas is limited to be below 25% of the lowest explosion limit.
Preferably, the physical detection components are all thermosensitive wires, and the thermosensitive wires of the PACK-level fire-fighting subsystem are uniformly distributed along the inner surface of the corresponding battery PACK box.
More preferably, the installation-level fire-fighting subsystem further comprises a water spraying system, wherein the water spraying system is arranged at the top of the container and comprises a plurality of spray heads, the spray directions of the spray heads are downward, and all the spray ranges of the spray heads cover all the battery clusters in the container.
Preferably, the PACK-level fire extinguishing device is an electric heating dual-start aerosol fire extinguishing device, and after receiving an electric start signal or igniting a thermosensitive wire by open flame, the fire extinguishing device burns by an electric initiator or the thermosensitive wire to activate an aerosol generating agent in the fire extinguishing device, and the aerosol generating agent decomposes a chemical coolant through heat released by oxidation-reduction reaction, so that the aerosol generating agent and the coolant participate in fire extinguishing together;
the installation-level fire extinguishing device is an electric starting aerosol fire extinguishing device, after receiving an electric starting signal, the electric initiator activates an aerosol generating agent in the fire extinguishing device, the aerosol generating agent generates the fire extinguishing agent through a combustion reaction, and heat released in the reaction process enables chemical cooling agent to decompose, so that the aerosol fire extinguishing agent and the cooling agent play a synergistic effect to participate in fire extinguishing.
A multi-stage simple fire protection method for an electrochemical energy storage system comprises the following steps:
s1: installing a corresponding installation-level fire-fighting subsystem in the energy storage container;
s2: arranging an electrifying detection assembly, a gas fire extinguishing controller, an installation level fire extinguishing device, an audible and visual alarm, an alarm bell, a water spraying system and an explosion-proof ventilation system in the S1 installation level fire extinguishing subsystem, wherein the electrifying detection assembly comprises a temperature sensing detector, a smoke sensing detector, a CO detector and a hydrogen detector, and forms delayed starting coordination with the corresponding installation level fire extinguishing device through the gas fire extinguishing controller, and forms starting coordination with the corresponding audible and visual alarm, the alarm bell and the explosion-proof ventilation system through the gas fire extinguishing controller;
s3: when the temperature-sensing detector in the S2 does not detect a fire early-warning signal with the temperature exceeding a set value and the smoke-sensing detector detects smoke to generate a single fire early-warning signal, a primary early-warning stage is entered;
s4: in the first-stage early warning stage in S3, the gas fire extinguishing controller generates a first-stage early warning signal to a control center, and simultaneously starts a corresponding audible and visual alarm to remind personnel to carry out emergency treatment;
s5: when the temperature detector and the smoke detector in the S2 detect that the temperature exceeds a set value and a smoke generated composite fire early warning signal, a secondary early warning stage is entered;
s6: in the second-level early warning stage in S5, the gas fire extinguishing controller generates a second-level early warning signal to the control center, and simultaneously starts a corresponding audible and visual alarm and an alarm bell to remind personnel to carry out emergency treatment, and simultaneously delays to send an electric starting signal to the installation-level fire extinguishing device after generating the second-level early warning signal;
s7: when the electric signal value of any one of the CO detector and the hydrogen detector in the S2 after detecting the corresponding combustible gas exceeds a set value, starting an explosion-proof ventilation system, and limiting the concentration of the combustible gas to be below the lowest explosion limit of 25%;
s8: in S6, when the patrol personnel find fire, the system can be reset through a start button on the gas fire extinguishing controller to be manually released, and in the delay stage in S6, when the patrol personnel find fire misinformation, the start of the installation-level fire extinguishing device is prevented through a scram button on the gas fire extinguishing controller;
s9: the method comprises the steps that a corresponding PACK-level fire-fighting subsystem is installed on each battery PACK box, and comprises a corresponding physical detection assembly and a PACK-level fire-fighting device, so that the physical detection assembly in the PACK-level fire-fighting subsystem and the corresponding PACK-level fire-fighting device form starting coordination;
s10: when the physical detection assembly in S7 senses fire signals, the PACK-level fire extinguishing device is directly started;
s11: after the fire extinguishing device in S6 and S9 is released, the fire condition is checked by a worker, when the fire is found to be reburning, emergency water is manually accessed, and water spraying fire extinguishing is carried out in the container through the water spraying system.
The invention has the beneficial effects that:
1. on the basis of the electrified detection assembly, the physical detection assembly is used as a starting line of each fire extinguishing device, so that the fire extinguishing devices are uniformly distributed in each monitoring field to perform omnibearing protection, the cost is reduced, the coverage range is wide, the response speed is improved, the fire information is acquired at the first time, and the battery PACK box is easier to install and arrange, so that the installation space is saved;
2. the physical and chemical properties of the thermosensitive wire are used as a starting wire of the fire extinguishing device, when the temperature exceeds the standard, the fire extinguishing assembly is ignited to spray the medicament, and the electrified detection assembly is only used in the installation-level protection system of the energy storage container, so that the possibility of secondary accident generation is low;
3. the detection data of the power-on detection assembly and the physical detection assembly are fully utilized to form a primary early warning stage, a secondary early warning stage and a PACK fire stage, corresponding devices are started for reminding and protecting aiming at different stages, intelligent protection is realized, and cost is saved;
4. the physical detection assembly and the power-on detection assembly are complementary, the detection range of each other is made up, the physical detection assembly makes up the induction time, and the maintenance inspection frequency of using the power-on detection assembly is reduced;
5. the gas fire extinguishing controller can respond in stages, and can enter a pre-release stage when aiming at a secondary early warning stage, and the gas fire extinguishing controller is electrically started to install a stage fire extinguishing device after a delay time is set for a long time, so that the time for evacuating, primary checking and sealing the container door is fully reserved;
6. the device detects the concentration of the combustible gas through the CO detector and the hydrogen detector, and then starts an explosion-proof ventilation system through the concentration of the combustible gas, so that emergency treatment on the combustible gas is realized; the starting button and the emergency stop button are added, so that more situations can be faced, the manual operation is switched to when the manual operation is needed, and the emergency treatment is convenient; the water spraying system is used as a final defense line to treat the reburning, so that the damage to the electric elements is avoided as much as possible.
Drawings
FIG. 1 is a schematic front view of an energy storage container of the present invention;
FIG. 2 is a schematic top view of the energy storage container of the present invention;
FIG. 3 is a wiring diagram of an installation level fire protection subsystem of the present invention;
FIG. 4 is a schematic diagram of a PACK-grade fire protection subsystem arrangement of the present invention;
FIG. 5 is a schematic diagram of another PACK-grade fire protection subsystem arrangement of the present invention;
FIG. 6 is a schematic view of the appearance of the PACK-grade fire extinguishing apparatus of the present invention;
FIG. 7 is a schematic view of the installation-level fire extinguishing apparatus of the present invention;
FIG. 8 is a schematic diagram of the intake system of the explosion-proof ventilation system of the present invention;
FIG. 9 is a schematic diagram of the exhaust system of the explosion-proof ventilation system of the present invention;
FIG. 10 is a schematic flow diagram of the fire protection system of the present invention;
FIG. 11 is a schematic flow diagram of an installation level fire protection subsystem of the present invention;
in the figure: 1. an energy storage container; 2. a battery PACK box; 3. an installation-level fire protection subsystem; 4. a PACK-level fire subsystem; 5. installing a level fire extinguishing device; 6. PACK-level fire extinguishing device; 7. a thermosensitive wire; 8. a temperature sensing detector; 9. a smoke detector; 10. a gas fire suppression controller; 11. a battery cluster; 12. a CO detector; 13. a hydrogen detector; 14. an alarm bell; 15. an audible and visual alarm; 16. a start button; 17. an emergency stop button; 18. a water spray system; 19. an explosion-proof ventilation system.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 10 and fig. 11, as a preferred embodiment 1, a multifunctional fire protection system for an electrochemical energy storage system includes an energy storage container 1, a PACK-level fire extinguishing device 6 and an installation-level fire extinguishing device 5, a plurality of battery clusters 11 are arranged in the energy storage container 1, a plurality of battery PACK boxes 2 are arranged in each battery cluster 11, an installation-level fire protection subsystem 3 for the overall fire protection of the energy storage container 1 is arranged in the energy storage container 1, the installation-level fire protection subsystems 3 are in one-to-one correspondence with a container body, a PACK-level fire protection subsystem 4 for the fire protection of a single battery PACK box 2 is arranged on each battery PACK box 2, and the PACK-level fire protection subsystems 4 are in one-to-one correspondence with the battery PACK boxes 2;
the installation-level fire-fighting subsystem 3 comprises an electrifying detection assembly, a gas fire-extinguishing controller 10, an installation-level fire-extinguishing device 5, an audible and visual alarm 15, an alarm bell 14 and an explosion-proof ventilation system 19 which are arranged in a container, wherein the electrifying detection assembly forms delayed starting coordination with the corresponding installation-level fire-extinguishing device 5 through the corresponding gas fire-extinguishing controller 10, a nozzle of the installation-level fire-extinguishing device 5 faces a battery cluster in the container, and the electrifying detection assembly forms starting coordination with the corresponding audible and visual alarm 15, the alarm bell 14 and the explosion-proof ventilation system 19 through the corresponding gas fire-extinguishing controller 10;
every PACK level fire control subsystem 4 includes that the physics detects subassembly and the PACK level extinguishing device 6 that corresponds, PACK level extinguishing device 6 locates on the battery PACK case 2 that corresponds, and PACK level extinguishing device 6's spout covers battery PACK case 2, and the physics detects the subassembly and evenly distributed along the case internal surface, and the physics detects the subassembly and forms the start-up cooperation with PACK level extinguishing device 6 that corresponds.
Embodiment 1 provides a multifunctional fire protection system for an electrochemical energy storage system, wherein the fire protection system is classified into an installation-level fire protection subsystem 3 for the whole energy storage container 1 and a PACK-level fire protection subsystem 4 for a single battery PACK box 2 according to the structure of the energy storage container 1, root fire sources are detected early and quickly extinguished through the PACK-level fire protection subsystem 4, and the interior of the box is extinguished and cooled through the installation-level fire protection subsystem 3, so that casualties are avoided;
the heat sensitive wire 7 is used as a physical detection component in the PACK-level fire-fighting subsystem 4, and the fire extinguishing components corresponding to the fire extinguishing devices are ignited to spray fire extinguishing agents according to the physicochemical properties of the heat sensitive wire 7 caused by temperature, so that the monitoring cost is reduced, the influence of other electrical components on the energy storage container and each battery PACK is prevented, the loss is also reduced when fire occurs, and the secondary damage of the electrical components caused by the fire is prevented, so that the operation of the fire-fighting system is prevented from being influenced; the battery PACK box 2 has a narrow internal space, is inconvenient to install the electrified detection assembly, and has a certain delay property when the electrified detection assembly senses the change of a numerical value when a fire point far away from the sensing end fires, and is not as comprehensive as the thermosensitive wire 7 monitors and feeds back timely;
the installation-level fire-fighting subsystem 3 is internally provided with a plurality of battery clusters, each battery cluster comprises a plurality of battery PACK boxes 2, if the heat-sensitive wires 7 are used for monitoring, the heat-sensitive wires 7 are easily arranged everywhere, and are in a packing dislocation mode, the fire-fighting protection is not facilitated, and even normal power supply is possibly influenced, so that the detection is performed by the aid of the power-on detection assembly, grading processing is performed according to detection results, the processing effect is guaranteed, meanwhile, the waste of fire-fighting resources is avoided, and the construction cost of fire fighting is greatly reduced; when a fire occurs, because staff or patrol staff may be present in the box, at the moment of detecting the fire, signals are generated to the control center, the alarm bell 14 and the audible and visual alarm 15 to notify people to evacuate, and meanwhile, the corresponding installation-level fire extinguishing device 5 is started by the gas fire extinguishing controller 10 in a delayed manner, so that time is left for staff to evacuate and emergency check, and the fire extinguishing process accords with the national standard.
Preferably, the energy storage container 1 can select 20-ruler energy storage containers for fire protection design, the length, width and height dimensions of the containers are 6050mm, 2430mm and 2964mm respectively, 8 battery clusters are contained, 6 battery PACK boxes 2 are contained in one battery cluster, and the length, width and height dimensions of each battery PACK box 2 are 1033mm, 1044mm and 292mm respectively. The total capacity of the lithium ion battery container is about 3.07MWh.
As a preferred embodiment 2, the energization detecting assembly includes a temperature sensing detector 8, a smoke sensing detector 9, a CO detector 12, and a hydrogen detector 13. Is an example of an option for powering on the detection assembly.
As shown in fig. 11, as a preferred embodiment 3, when only the electrical signal value after the smoke detector 9 detects smoke exceeds a set value, the gas fire extinguishing controller 10 receives the electrical signal of the detector to form a first-level early warning signal to the control center, and reminds personnel to perform emergency treatment through the audible and visual alarm 15.
Preferably, when the electric signal values detected by the smoke detector 9 and the temperature detector 8 exceed the set values, the gas fire extinguishing controller 10 receives the electric signals of the detectors to form a secondary early warning signal, the secondary early warning signal is transmitted to the control center, the audible and visual alarm 15 and the alarm bell 14 are started, and the gas fire extinguishing controller 10 forms the secondary early warning signal and then delays to send a starting signal to the installation-level fire extinguishing device 5.
Preferably, the gas fire-extinguishing controller 10 adjusts the time delay time length, and the gas fire-extinguishing controller 10 is also connected with a start button 16 and an emergency stop button 17. The fire extinguishing apparatus is conveniently manually stopped from starting and resetting the system under special conditions, or manually started, and the delay time can be adjusted by the gas fire extinguishing controller 10, but at least the time is not less than the safety regulation.
Preferably, the duration of the delay time is selected to be 30s.
Embodiment 3 is an embodiment of the power-on detection assembly according to embodiment 2 for implementing early warning by selecting a category, comprising two stages:
the first stage is a first-stage early warning stage, namely only smoke is generated without high temperature, and the fire extinguishing device does not need to be started at the moment, so that after signals of the temperature sensing detector 8 and the smoke sensing detector 9 are received, the gas fire extinguishing controller 10 generates a first-stage early warning signal and transmits the first-stage early warning signal to the control center, the audible and visual alarm 15 is started, and the control center arranges personnel to perform emergency treatment after receiving the first-stage early warning signal to check faults or fire conditions;
the second stage is a second early warning stage, namely, smoke and high temperature are present, and the fire extinguishing device needs to be started to extinguish and cool the interior of the box at the moment, so that after signals of the temperature sensing detector 8 and the smoke sensing detector 9 are received, the gas fire extinguishing controller 10 generates a second early warning signal and transmits the second early warning signal to the control center, the audible and visual alarm 15 and the bell 14 are started, the early warning stage can be judged obviously in terms of hearing through the bell 14, the control center can arrange personnel to conduct emergency treatment after receiving the second early warning signal, troubleshooting or fire conditions are detected, and after the second early warning signal is generated, the starting signal is delayed to be sent to start the installation stage fire extinguishing device 5, a certain time is reserved for evacuating staff and confirming fire conditions, and after the personnel are confirmed to evacuate and fire conditions are confirmed to exist, the installation stage fire extinguishing device 5 is started after the delay is finished, and fire extinguishing is performed on the whole container.
As shown in fig. 11, as a preferred embodiment 4, when the electric signal value after the CO detector 12 and the hydrogen detector 13 detect the corresponding combustible gas exceeds the set value, the explosion-proof ventilation system 19 is started to limit the concentration of the combustible gas below the lowest explosion limit of 25%. The concentration of the combustible gas is timely discharged and controlled, explosion is prevented, a switching value signal is generated at the moment of starting the explosion-proof ventilation system 19, the control center is informed, and the control center can monitor the value of the concentration of the combustible gas and the operation condition of the explosion-proof ventilation system 19.
Preferably, the smoke detector 9 is a 55000-316 type smoke detector, the temperature detector 8 is a 55000-121 type temperature detector, the gas fire extinguishing controller 10 is a K11031M2 type gas fire extinguishing controller, the fire extinguishing agent release time is 0-60 s, the fire extinguishing agent release time is 60-300 s, the audible and visual alarm 15 is a 958CHL1000 type fire audible and visual alarm, the alarm 14 is a CBE6-RS-024-EN type alarm, the emergency stop button 17 is a K91000M10 type emergency stop button, and the start button 16 is a K911110M8 type manual release station.
As shown in fig. 8 and 9, as a preferred embodiment 5, the explosion-proof ventilation system 19 includes an air intake mechanism and an air exhaust mechanism which are relatively arranged with respect to the cabinet, the air intake mechanism being located at the bottom of one side of the cabinet, and the air exhaust mechanism being located at the top of the opposite side of the air intake mechanism.
Preferably, an air exhausting mechanism and an air inlet mechanism are respectively arranged at two opposite sides of the cabinet body, and the air conveying direction is downwards in and upwards out, so that the combustible air with density smaller than that of air can be conveniently and rapidly discharged, the air inlet mechanism is arranged at the lower part of the energy storage container 1, the input air is blocked by equipment, the air is dispersed to flow to the left and right sides and the lower part, most of air flows flow away from the lower layer of the energy storage container 1, and the rest flows to the air exhausting mechanism from two ends of the equipment;
from streamline distribution of the air exhaust mechanism, the air exhaust extracts air in the energy storage container 1 from the bottom and the two ends, the air on the top layer is disturbed by the air from the bottom, and the air is extracted by the air exhaust mechanism to be discharged out of the energy storage container 1 after flowing in the energy storage container 1.
Preferably, the exhaust mechanism can be provided with a combustible gas recovery and treatment device, so that the combustible gas is prevented from being directly existing in the environment to form a safety hazard.
As shown in fig. 10, as a preferred embodiment 6, the physical detection components are all thermosensitive wires 7, and the thermosensitive wires 7 of the PACK level fire-fighting subsystem 4 are uniformly distributed along the inner surface of the corresponding battery PACK case 2. Example 6 is a specific selection and installation location of a physical detection assembly wherein the heat sensitive wires 7 of the PACK level fire subsystem 4 are disposed on the inside surface of the box to monitor the fire conditions within the PACK box.
As shown in fig. 4, as a preferred embodiment 7, the thermosensitive wire 7 of the PACK level fire-fighting subsystem 4 is arranged in an S-shaped curve on the inner surface of the battery PACK case 2, the PACK level fire-extinguishing device 6 is arranged at the middle position of the top of the battery PACK case 2, and the PACK level fire-extinguishing device 6 is provided with a plurality of nozzles, the nozzles spray along different directions, and the spraying range covers the whole battery PACK case 2. Embodiment 7 is one of them PACK level fire control subsystem 4 arrangement mode, the PACK case top is installed, the multi-direction outgoing line of thermosensitive wire 7, can reduce the detection time, arrange with S-shaped curve, compare with single horizontal or longitudinal arrangement, have increased the detection point, the protection is more reliable; the fire extinguishing device has multiple nozzles, can cover the protection area in all directions, and can spray all fire extinguishing agents for extinguishing fire in the first time.
As shown in fig. 5, as a preferred embodiment 8, the PACK-level fire extinguishing device 6 is disposed on one side of the pressure release valve of the battery PACK case 2, a thermosensitive wire 7 is disposed above the pressure release valve of the battery PACK case 2, the PACK-level fire extinguishing device 6 is provided with a plurality of nozzles, the plurality of nozzles spray in different directions, the spraying range covers the whole battery PACK case 2, and at least one nozzle of the plurality of nozzles is aligned with the pressure release valve of the battery PACK case 2. Embodiment 8 is another arrangement mode of the PACK-level fire-fighting subsystem 4, the side part of the PACK box is provided with the thermosensitive wire 7, the thermosensitive wire 7 is led out in multiple directions, the detection time can be reduced, the thermosensitive wire 7 is arranged at the pressure release valve of the PACK box, a large amount of combustible gas overflows from the pressure release valve after the battery cell is out of control, at the moment, the oxygen on the inner surface of the box is insufficient, the ignition point can not be reached, the pressure release valve is a contact point between air and the combustible gas, the oxygen is sufficient, the important ignition point is the place, the thermosensitive wire 7 is arranged at the limited place, and the fire can be detected for the first time and the fire extinguishing device can be started;
and secondly, when the device is sprayed, a large amount of fire extinguishing agent rapidly cuts off combustible materials and ignition points to play a part of fire extinguishing roles near the pressure release valve at the position of the device nozzle.
As shown in fig. 6, as a preferred embodiment 9, the PACK-level fire extinguishing device 6 is an electrothermal dual-start aerosol fire extinguishing device, and after receiving an electrical start signal or igniting the thermosensitive wire 7 by open fire, the electrical initiator or the thermosensitive wire 7 burns and activates an aerosol generating agent in the fire extinguishing device, and the aerosol generating agent decomposes a chemical coolant by heat released by oxidation-reduction reaction, so that the aerosol generating agent and the coolant participate in fire extinguishing together.
Preferably, the PACK-level fire extinguishing device 6 can be a hot aerosol extinguishing device with the model number of QRR0.144G/S-MS-144-F-02-11, and is suitable for closed space places such as energy storage cabinets and the like. When a fire disaster occurs, after the fire extinguishing device receives an electric starting signal or an open flame to ignite a thermosensitive wire, the electric initiator or the thermosensitive wire burns to activate an aerosol generating agent in the fire extinguishing device, and the aerosol generating agent decomposes a chemical cooling agent through heat released by oxidation-reduction reaction, so that the aerosol generating agent and the cooling agent participate in fire extinguishing together.
Wherein, the reference parameters are as follows:
operating environment temperature range: -40 to +70 ℃; the starting mode is as follows: electric heating double-start; spraying time: the time is less than or equal to 15s; names and contents of oxidizing agent: 50% -58% of strontium nitrate and potassium nitrate; the protection space is as follows: 2m of green tea; thermal initiator activation temperature: 185 + -10 ℃.
As shown in fig. 7, as a preferred embodiment 8, the installation-level fire extinguishing device 5 is an electrically activated aerosol fire extinguishing device, after receiving an electrical activation signal, the electrical initiator activates an aerosol generating agent in the fire extinguishing device, the aerosol generating agent generates the fire extinguishing agent through a combustion reaction, and the chemical cooling agent is decomposed by heat released in the reaction process, so that the aerosol fire extinguishing agent and the cooling agent play a synergistic effect to participate in fire extinguishing.
As a preferred embodiment 10, the installation-level fire extinguishing device 5 can be a rapid aerosol extinguishing device with the model of JAD300-U01, and is suitable for closed space places such as power distribution cabinets and the like. When a fire disaster occurs, after receiving an electric starting signal, the fire extinguishing device activates an aerosol generating agent in the fire extinguishing device, the aerosol generating agent generates the fire extinguishing agent through a combustion reaction, and heat released in the reaction process enables a chemical cooling agent to decompose, so that the aerosol fire extinguishing agent and the cooling agent play a synergistic effect to participate in fire extinguishing.
Wherein, the reference parameters are as follows:
operating environment temperature range: -40 to +54 ℃; the starting mode is as follows: electrically starting; spraying time: the time is less than or equal to 15s; spray lag time: less than or equal to 2s; names and contents of oxidizing agent: 50% -58% of strontium nitrate; the protection space is as follows: 5 m.
As a preferred embodiment 11, the installation-level fire-fighting subsystem 3 further includes a water spray system 18, the water spray system 18 is disposed at the top of the container, the water spray system 18 includes a plurality of spray heads, the spray directions of the spray heads are all downward, and all spray ranges of the spray heads cover all battery clusters in the container.
The water spraying system 18 in embodiment 11 is arranged at the top of the container, and as a final fire extinguishing means, the energy storage container 1 and the internal electrical components are seriously affected by the use of the water spraying system, so that the water spraying system is controlled manually, and the emergency water source is manually switched on to spray and extinguish the fire of the energy storage container only when the maintainer confirms that the fire cannot be extinguished or the condition that the fire has re-combustion exists through the fire extinguishing device.
As shown in fig. 10 and 11, as a preferred embodiment 12, a multi-stage simple fire protection method for an electrochemical energy storage system using the above system includes the steps of:
s1: installing a corresponding installation-level fire-fighting subsystem 3 in the energy storage container 1;
s2: arranging an electrifying detection assembly, a gas fire extinguishing controller 10, an installation level fire extinguishing device 5, an audible and visual alarm 15, an alarm bell 14, a water spraying system 18 and an explosion-proof ventilation system 19 in the S1 installation level fire extinguishing subsystem 3, wherein the electrifying detection assembly comprises a temperature sensing detector 8, a smoke sensing detector 9, a CO detector 12 and a hydrogen detector 13, and the electrifying detection assembly in the installation level fire extinguishing subsystem 3 forms delayed starting fit with the corresponding installation level fire extinguishing device 5 through the gas fire extinguishing controller 10, and forms starting fit with the corresponding audible and visual alarm 15, the alarm bell 14 and the explosion-proof ventilation system 19 through the gas fire extinguishing controller 10;
s3: when the temperature-sensing detector 8 in the S2 does not detect a fire early-warning signal with the temperature exceeding a set value and the smoke-sensing detector 9 detects smoke to generate a single fire early-warning signal, a primary early-warning stage is entered;
s4: in the first-stage early warning stage in S3, the gas fire extinguishing controller 10 generates a first-stage early warning signal to a control center, and simultaneously starts a corresponding audible and visual alarm 15 to remind personnel of emergency treatment;
s5: when the temperature detector 8 and the smoke detector 9 in the S2 detect that the temperature exceeds a set value and a smoke generated composite fire early warning signal, a secondary early warning stage is entered;
s6: in the second-level early warning stage in S5, the gas fire extinguishing controller 10 generates a second-level early warning signal to a control center, and simultaneously starts a corresponding audible and visual alarm 15 and an alarm bell 14 to remind personnel to carry out emergency treatment, and simultaneously the gas fire extinguishing controller 10 delays to send an electric starting signal to the installation-level fire extinguishing device 5 after generating the second-level early warning signal;
s7: when the electrical signal value of any one of the CO detector 12 and the hydrogen detector 13 in the S2 after detecting the corresponding combustible gas exceeds a set value, starting an explosion-proof ventilation system 19, and limiting the concentration of the combustible gas to be below the lowest explosion limit of 25%;
s8: in S6, when the patrol personnel find fire, the system can be reset through a start button 16 on the gas fire extinguishing controller 10 to be manually released, and in S6, when the patrol personnel find fire misinformation in a delay stage, the start of the installation-level fire extinguishing device 5 is prevented through a scram button 17 on the gas fire extinguishing controller 10;
s9: a corresponding PACK-level fire-fighting subsystem 4 is arranged on each battery PACK box 2, and the PACK-level fire-fighting subsystem 4 comprises a corresponding physical detection component and a PACK-level fire-fighting device 6, so that the physical detection component in the PACK-level fire-fighting subsystem 4 and the corresponding PACK-level fire-fighting device 6 form starting coordination;
s10: when the physical detection assembly in the S7 senses fire signals, the PACK-level fire extinguishing device 6 is directly started;
s11: after the fire extinguishing device in S6 and S9 is released, the fire condition is checked by a worker, and when the fire is found to be reburning, emergency water is manually accessed, and water spraying fire extinguishing is performed in the container through the water spraying system 18.
In the embodiment 12 in S2, the whole inside the energy storage container 1 is detected by the power-on detection assembly, when a single smoke signal is detected in S3, a first-level early warning stage is entered, S4 is executed, the gas fire extinguishing controller 10 generates a first-level early warning signal to the control center, and the audible and visual alarm 15 is started to inform the staff of the rapid arrival process, so that the staff can be examined and overhauled to prevent larger fire;
when the temperature detector 8 and the smoke detector 9 detect a composite fire early warning signal with the temperature exceeding a set value and smoke generation, a secondary early warning stage is entered, S6 is executed, the gas fire extinguishing controller 10 generates a secondary early warning signal to a control center, an alarm bell 14 and an audible and visual alarm 15 are started to remind personnel to carry out emergency treatment, the primary early warning stage and the secondary early warning stage can be distinguished through preliminary judgment of whether the alarm bell 14 exists, meanwhile, the gas fire extinguishing controller 10 delays sending an electric starting signal to the installation stage fire extinguishing device 5 after generating the secondary early warning signal, enough time is reserved for emergency evacuation and fire primary verification of personnel, the fire extinguishing effect is not hindered, and after the time is delayed, the installation stage fire extinguishing device 5 is started;
when the S7 detects that the electric signal value of any one of the CO detector 12 and the hydrogen detector 13 after detecting the corresponding combustible gas exceeds a set value, starting an explosion-proof ventilation system 19, and limiting the concentration of the combustible gas to be below the lowest explosion limit of 25%;
and S7, detecting the battery PACK box 2 through a physical detection component, and entering S8 to directly start the corresponding PACK-level fire extinguishing device 6 when a fire is detected.
As a preferred embodiment 12, the step S6 further includes the following steps, when the installation level fire extinguishing is performed, when all people are evacuated, the door of the energy storage container 1 is closed, and when the installation level fire extinguishing device 5 is started, the inside of the container is made into a relatively airtight environment, so as to prevent the continuous entry of the combustion-supporting gas, enhance the fire extinguishing effect, and accelerate the fire extinguishing speed.
As a preferred embodiment 13, S6 and S7 can form linkage, when the secondary early warning signal is formed, the anti-explosion ventilation system 19 in S7 is closed no matter whether in an operation state or not, the tightness in embodiment 12 is further enhanced, the fire is extinguished first, and after the fire is extinguished, if the combustible gas is out of standard, the anti-explosion ventilation system 19 is started for air extraction, and timely maintenance is performed.
As a preferred embodiment 14, S8 is two special switching methods, in S6, when the inspector finds a fire manually, the fire can be switched to be released manually through the start button 16 on the gas fire extinguishing controller 10, and the installation-level fire extinguishing device 5 can be started manually or passively according to the monitoring condition;
and S6, in the delay stage, when a patrol person discovers a fire false alarm, the system can be reset through the emergency stop button 17 on the gas fire extinguishing controller 10, so that the starting of the installation-level fire extinguishing device 5 is prevented, the fire false alarm is prevented, the irrecoverable consequence caused by the starting of the fire extinguishing device is avoided, and the cost loss is reduced.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311583476.8A CN117599374A (en) | 2023-11-24 | 2023-11-24 | A multifunctional fire protection system and method for electrochemical energy storage systems |
| PCT/CN2024/133701 WO2025108403A1 (en) | 2023-11-24 | 2024-11-22 | Multifunctional fire-fighting and protection system and method for electrochemical energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311583476.8A CN117599374A (en) | 2023-11-24 | 2023-11-24 | A multifunctional fire protection system and method for electrochemical energy storage systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117599374A true CN117599374A (en) | 2024-02-27 |
Family
ID=89954322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311583476.8A Pending CN117599374A (en) | 2023-11-24 | 2023-11-24 | A multifunctional fire protection system and method for electrochemical energy storage systems |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117599374A (en) |
| WO (1) | WO2025108403A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118059417A (en) * | 2024-04-08 | 2024-05-24 | 上海铁人消防成套设备有限公司 | Energy storage cabinet gas fire extinguishing method and system |
| WO2025108402A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Multi-level simple fire-fighting system and method for all-in-one cabinet |
| WO2025108403A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Multifunctional fire-fighting and protection system and method for electrochemical energy storage system |
| WO2025108401A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Simple multi-level fire-fighting protection system and method for electrochemical energy storage system |
| WO2025236652A1 (en) * | 2024-05-13 | 2025-11-20 | 武汉亿纬储能有限公司 | Energy storage container provided with independent fire-fighting module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN221266972U (en) * | 2023-11-24 | 2024-07-05 | 湖北及安盾消防科技有限公司 | Multifunctional fire protection system for electrochemical energy storage system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432634B (en) * | 2018-10-08 | 2020-08-28 | 中国科学技术大学 | Fire-fighting method for containerized lithium-ion battery energy storage system |
| CN111628231A (en) * | 2019-02-28 | 2020-09-04 | 宁德时代新能源科技股份有限公司 | Container type energy storage system and environment control method thereof |
| CN111494840B (en) * | 2020-04-23 | 2021-04-23 | 苏州易换骑网络科技有限公司 | Fire early warning and fire extinguishing method for power battery charging cabinet |
| CN112156399A (en) * | 2020-07-22 | 2021-01-01 | 浙江蓝盾电工新材料科技有限公司 | Fire-fighting system for echelon early warning and multiple times of accurate discharge of lithium battery energy storage units |
| CN114452565A (en) * | 2022-01-10 | 2022-05-10 | 中国电建集团江西省电力建设有限公司 | Intelligent fire-fighting linkage system of photovoltaic booster station and matched energy storage power station |
| CN216603874U (en) * | 2022-01-12 | 2022-05-27 | 傲普(上海)新能源有限公司 | Two-stage fire extinguishing system with energy storage battery clusters |
| CN216928688U (en) * | 2022-02-23 | 2022-07-08 | 湖北亿纬动力有限公司 | A containerized power supply |
| CN115869563A (en) * | 2022-11-21 | 2023-03-31 | 楚能新能源股份有限公司 | Fire-fighting system for energy storage container and fire-fighting early warning control method |
| CN116672637B (en) * | 2023-08-03 | 2023-12-12 | 中国华能集团清洁能源技术研究院有限公司 | Battery compartment fire control system and battery compartment fire control method |
| CN117599374A (en) * | 2023-11-24 | 2024-02-27 | 湖北及安盾消防科技有限公司 | A multifunctional fire protection system and method for electrochemical energy storage systems |
-
2023
- 2023-11-24 CN CN202311583476.8A patent/CN117599374A/en active Pending
-
2024
- 2024-11-22 WO PCT/CN2024/133701 patent/WO2025108403A1/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN221266972U (en) * | 2023-11-24 | 2024-07-05 | 湖北及安盾消防科技有限公司 | Multifunctional fire protection system for electrochemical energy storage system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025108402A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Multi-level simple fire-fighting system and method for all-in-one cabinet |
| WO2025108403A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Multifunctional fire-fighting and protection system and method for electrochemical energy storage system |
| WO2025108401A1 (en) * | 2023-11-24 | 2025-05-30 | 湖北及安盾消防科技有限公司 | Simple multi-level fire-fighting protection system and method for electrochemical energy storage system |
| CN118059417A (en) * | 2024-04-08 | 2024-05-24 | 上海铁人消防成套设备有限公司 | Energy storage cabinet gas fire extinguishing method and system |
| WO2025236652A1 (en) * | 2024-05-13 | 2025-11-20 | 武汉亿纬储能有限公司 | Energy storage container provided with independent fire-fighting module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2025108403A1 (en) | 2025-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221266972U (en) | Multifunctional fire protection system for electrochemical energy storage system | |
| CN117599374A (en) | A multifunctional fire protection system and method for electrochemical energy storage systems | |
| CN109513135B (en) | Energy storage container fire protection system and method | |
| CN111643834B (en) | A fire-fighting device for a container energy storage system and its control method | |
| JP7085169B1 (en) | Battery pack fire extinguishing system | |
| CN216603874U (en) | Two-stage fire extinguishing system with energy storage battery clusters | |
| CN112043993A (en) | Energy storage battery compartment fire-fighting system and fire-fighting method thereof | |
| CN117599375A (en) | A multi-level simple fire protection system and method for electrochemical energy storage systems | |
| CN110270032B (en) | Fire prevention and control device of lithium ion battery energy storage system and implementation method | |
| CN117599373A (en) | A multi-level intelligent fire protection system and method for integrated cabinets | |
| CN213724537U (en) | Lithium ion battery water-packaging base fire prevention and control device | |
| CN112316332A (en) | A kind of multi-level early warning fire fighting device and method for lithium ion battery cabinet | |
| CN111870843A (en) | A wireless fire protection system for energy storage station and its control method | |
| CN107681067A (en) | A kind of lithium ion battery fireproof anti-explosion device | |
| CN221266975U (en) | Multistage simple fire protection system for electrochemical energy storage system | |
| CN109568833A (en) | A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method | |
| CN110102001B (en) | Fire-fighting linkage control system | |
| CN212593613U (en) | Energy storage battery cabin fire extinguishing system | |
| CN207587767U (en) | A kind of lithium ion battery fireproof anti-explosion device | |
| CN205598471U (en) | A safety battery box and its safety protection system | |
| CN205598472U (en) | A vehicle safety battery box and vehicle power safety system | |
| CN115920277A (en) | A prefabricated cabin type lithium battery energy storage system fire extinguishing and cooling system and control method | |
| CN117618823A (en) | A multi-level simple fire protection system and method for integrated cabinets | |
| CN221266973U (en) | A multi-level intelligent fire protection system for integrated cabinets | |
| CN116154331A (en) | Lithium battery box, lithium battery cabinet and fire early warning control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |