CN221981435U - Energy storage container fire extinguishing system and energy storage container - Google Patents
Energy storage container fire extinguishing system and energy storage container Download PDFInfo
- Publication number
- CN221981435U CN221981435U CN202420222601.6U CN202420222601U CN221981435U CN 221981435 U CN221981435 U CN 221981435U CN 202420222601 U CN202420222601 U CN 202420222601U CN 221981435 U CN221981435 U CN 221981435U
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- storage container
- alarm
- battery
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- 238000004146 energy storage Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 239000000779 smoke Substances 0.000 claims abstract description 24
- 230000001629 suppression Effects 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 13
- 230000000007 visual effect Effects 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 230000007480 spreading Effects 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
本实用新型公开了一种储能集装箱消防***及储能集装箱，涉及储能集装箱消防技术领域。该储能集装箱包括相互分隔的电池舱和电气舱，电池舱内设有由多个电池包组成的电池簇，消防***包括热失控探测报警***以及火灾抑制***；热失控探测报警***包括报警指示装置、用于探测电池包、电池舱和电气舱内温度和烟气浓度变化的探测装置和用于接收探测装置信号以控制报警指示装置和火灾抑制***进行工作的火灾报警控制装置；火灾抑制***包括点喷灭火装置、水喷淋灭火装置和通风装置。本实用新型可对储能集装箱内火情进行分级并对不同等级火情做出良好应对。
The utility model discloses an energy storage container fire protection system and an energy storage container, and relates to the technical field of energy storage container fire protection. The energy storage container includes a battery compartment and an electrical compartment separated from each other, and a battery cluster composed of a plurality of battery packs is arranged in the battery compartment. The fire protection system includes a thermal runaway detection alarm system and a fire suppression system; the thermal runaway detection alarm system includes an alarm indication device, a detection device for detecting changes in temperature and smoke concentration in the battery pack, the battery compartment and the electrical compartment, and a fire alarm control device for receiving signals from the detection device to control the alarm indication device and the fire suppression system to work; the fire suppression system includes a point spray fire extinguishing device, a water sprinkler fire extinguishing device and a ventilation device. The utility model can classify the fire conditions in the energy storage container and respond well to fire conditions of different levels.
Description
Technical Field
The utility model relates to the technical field of energy storage container fire control, in particular to an energy storage container fire control system and an energy storage container.
Background
The battery is used as a core component of electrochemical energy storage, has a large thermal runaway risk, can instantaneously release a large amount of heat when thermal runaway occurs, and rapidly spreads to adjacent batteries to cause large-area thermal runaway of the battery pack, so that serious fire or explosion accidents are caused. From the safety point of view, the battery fire protection measures are very important to effectively control and solve the fire and explosion risks caused by thermal runaway.
With the great development of photovoltaic power generation, wind power generation and the like, battery energy storage systems are widely applied, for example, an energy storage container is a battery energy storage system which takes the container as a good carrier and provides uninterrupted power supply for various devices better.
In order to improve the use safety performance of the energy storage container, the energy storage container is required to be equipped with fire-fighting measures, the fire-fighting mode of the energy storage container at present usually adopts whole-cluster fire-fighting, and when the battery packs in the battery clusters are out of control, the fire-fighting system directly sprays fire-fighting agents such as perfluorinated hexanone or heptafluoropropane to the whole-cluster battery packs, so that other battery packs without faults in the clusters cannot be normally used.
Disclosure of utility model
Aiming at the defects in the background technology, the utility model provides an energy storage container fire protection system and an energy storage container.
In order to achieve the above object, the present utility model provides the following first technical solution: the fire-fighting system of the energy storage container comprises a battery compartment and an electric compartment which are separated from each other, wherein a battery cluster consisting of a plurality of battery packs is arranged in the battery compartment, and the fire-fighting system comprises a thermal runaway detection alarm system and a fire suppression system;
The thermal runaway detection alarm system comprises an alarm indication device, a detection device for detecting temperature and smoke concentration changes in a battery pack, a battery compartment and an electric compartment, and a fire alarm control device for receiving signals of the detection device to control the alarm indication device and the fire suppression system to work;
The fire suppression system comprises a spot spraying fire extinguishing device, a water spraying fire extinguishing device and a ventilation device.
Through adopting above-mentioned technical scheme, detection device can detect temperature and flue gas concentration change in battery package, battery compartment and the electric cabin respectively and generate the fire signal transmission of different grades and give fire alarm control device: when a fire signal generated by the out-of-control battery Bao Re is transmitted to a fire alarm control device through a detection device, the fire alarm control device commands the alarm indication device to send out a signal to inform related personnel, and simultaneously starts a point spraying fire extinguishing device to start to spray the fire extinguishing agent to the battery pack point accurately to extinguish the fire, the fire extinguishing device directly acts on the out-of-control battery core to effectively avoid the thermal runaway from spreading, and other battery packs without faults in the cluster can be normally used because the fire extinguishing agent such as the perfluorinated hexanone or the heptafluoropropane is not directly sprayed to the whole cluster of batteries, meanwhile, the perfluorinated hexanone or the heptafluoropropane has excellent insulativity, the dielectric strength is up to 110KV, no residue exists after fire extinguishment, no corrosiveness is caused to the circuit, and the fire extinguishing medium is the best thermal runaway of the lithium battery; when thermal runaway occurs in the whole battery compartment, the detection device generates a fire signal of a higher level and transmits the fire signal to the fire alarm control device, the fire alarm control device commands the alarm indication device to send out a signal to inform related personnel, and simultaneously, the point spraying fire extinguishing device is started to perform continuous total submerged spraying protection, so that the thermal runaway is prevented from spreading and spreading, and when the fire signal is further upgraded to generate a fire disaster, the fire alarm control device starts the water spraying fire extinguishing device, so that the whole compartment is cooled and extinguished, and the final safety bottom line is reserved when the early-stage nondestructive accurate fire extinguishing is achieved; when the detection device detects that only a lower-level fire signal with temperature rise but not thermal runaway is generated in the battery compartment and is transmitted to the fire alarm control device, the fire alarm control device starts the ventilation device to ventilate so as to reduce the temperature in the battery compartment; when the detecting device detects that the electric cabin is out of control, the detecting device generates a fire signal and transmits the fire signal to the fire alarm control device, the fire alarm control device commands the alarm indication device to send out a signal to inform related personnel, the electric cabin is used as a protection area separated from the battery cabin to be provided with an independent detecting device and a portable dry powder fire extinguisher, and after the detecting device sends out the fire signal, the fire alarm control device does not start a fire suppression system, but the related personnel manually opens the portable dry powder fire extinguisher to perform manual fire extinguishing according to actual fire.
The utility model is further provided with: the detection device comprises a two-in-one composite detector which is arranged on the battery pack and used for realizing early detection and alarm, a five-in-one composite detector which is arranged at the top of the battery compartment and used for detecting fire signals of the battery compartment, and a smoke alarm which is arranged at the top of the electric compartment and used for detecting fire signals of the electric compartment. The two-in-one composite detector is arranged on the battery pack and is used for detecting the temperature and carbon monoxide parameter change of the battery pack, and can detect a thermal runaway fire signal of the battery pack at an extremely early stage, timely dispose and inform related personnel, and extinguish the fire in a sprouting stage; the five-in-one composite detector is arranged at the top of the battery compartment and is used for detecting parameter changes such as hydrogen, carbon monoxide, smoke, temperature and the like of the whole battery compartment and sending fire signals of different grades to the fire alarm control device so as to cope with different fire conditions; a smoke alarm arranged at the top of the electric cabin detects the smoke parameter change of the whole electric cabin and sends a fire signal to a fire alarm control device.
The utility model is further provided with: the alarm indicating device comprises a deflation no-entry indicating lamp which is arranged on the energy storage container and prompts the fire suppression system to work. When a fire occurs in the battery compartment, the fire alarm control device controls the fire suppression system to work after receiving the fire signal and starts the deflation no-entry indicator lamp to prompt relevant personnel to do not enter the battery compartment.
Preferably, the alarm indication device further comprises an audible and visual alarm arranged on the energy storage container for carrying out fire disaster early warning on the electric cabin. When the electric cabin is in a fire condition, the fire alarm control device starts the audible and visual alarm to prompt relevant personnel to treat the fire scene after receiving the fire condition signal.
The utility model is further provided with: the spot fire extinguishing device comprises a fire-fighting nozzle which is arranged on the battery pack and used for spraying fire extinguishing agent. Each battery pack is provided with a fire-fighting nozzle, and aiming at fire signals of different grades, the fire-fighting nozzle is used for accurately extinguishing fire by spot spraying of the battery pack or carrying out total submerged injection protection fire extinguishing on the battery compartment.
Preferably, the spot spraying fire extinguishing device further comprises a pressure release window for releasing the fire extinguishing agent in the battery compartment. When the spraying pressure of the fire extinguishing agent in the battery compartment is increased to a certain value, part of air and the fire extinguishing agent are timely released to the outside of the compartment through the pressure relief window, so that the safety of the integral structure of the battery compartment is ensured.
The utility model is further provided with: the water spray fire extinguishing device comprises a water spray nozzle arranged at the top of the battery compartment, and the water spray nozzle is connected with an external fire pipe network through a water fire interface arranged on the wall of the battery compartment. When the fire is uncontrollable, the fire alarm control device receives a fire signal to start the water spraying fire extinguishing device, so that the whole cabin is cooled and extinguished; the water source of the water spray fire extinguishing device comes from a nearby fire-fighting pipe network, a water fire-fighting interface is arranged on the cabin body, a plurality of water spray nozzles are uniformly arranged at the top of the battery cabin, and the water spray nozzles are connected to the reserved water fire-fighting interface of the cabin body through galvanized steel pipes.
The utility model is further provided with: the ventilation device comprises a smoke exhaust fan and an electric shutter, wherein the smoke exhaust fan and the electric shutter are arranged on the energy storage container and ventilate the energy storage container. The smoke exhaust fan and the electric shutter are arranged on the energy storage container, when the fire alarm control device receives the lower-level fire signal sent by the detection device, the smoke exhaust fan and the electric shutter are opened to perform ventilation and cooling, and if each parameter value in the energy storage container continuously rises, the smoke exhaust fan and the electric shutter are closed after the fire alarm control device receives the higher-level fire signal, so that fire combustion supporting is prevented, and preparation is made for the follow-up spot spraying fire extinguishing device and the water spraying fire extinguishing device.
The utility model is further provided with: the energy storage container is also provided with an emergency starting button for starting the fire protection system and a manual fire alarm button for informing people to evacuate when finding fire.
In order to achieve the above object, the present utility model provides the following second technical solution: an energy storage container comprises the energy storage container fire-fighting system.
The energy storage container comprising the energy storage container fire protection system can grade fire signals in the energy storage container, and the thermal runaway detection alarm system and the fire suppression system are matched with each other to make good response to different levels of fire so as to avoid the energy storage container from fire.
In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:
1. The detection device can detect the temperature and smoke concentration parameter changes in the battery pack, the battery cabin and the electric cabin respectively, generate fire signals with different grades, transmit the fire signals to the fire alarm control device to control the alarm indication device to send alarm signals, and simultaneously control the fire suppression system to perform precise spot spraying, total submerged spraying and water spraying multi-stage fire extinguishment.
2. The spot fire extinguishing device responds rapidly after receiving the signal of the fire alarm control device, and the fire extinguishing device can extinguish the fire accurately to the battery pack, directly acts on the out-of-control battery cell, effectively avoids the thermal runaway spreading, is more efficient than the traditional fire extinguishing mode, and can not damage the battery and other electrical equipment by using the fire extinguishing agent such as perfluoro-hexanone.
3. After the fire cannot be controlled, the fire alarm control device starts the water spraying fire extinguishing device, so that the whole cabin is cooled and extinguished, and the final safety bottom line is reserved when the early-stage nondestructive accurate fire extinguishing is achieved.
Drawings
FIG. 1 is a front view of the overall structure of the fire extinguishing system for the energy storage container of the present embodiment;
fig. 2 is a front view of the overall structure of the battery pack of the present embodiment;
FIG. 3 is a right side view of the overall structure of the fire extinguishing system for the energy storage container of the present embodiment;
FIG. 4 is a left side view of the overall structure of the fire extinguishing system for the energy storage container of the present embodiment;
FIG. 5 is a rear view of the overall structure of the energy storage container fire protection system of the present embodiment;
The meaning of each reference numeral in the drawings: 1. two-in-one composite detector; 2. a logic expansion module; 3. five-in-one composite detector; 4. a fire alarm control device; 5. a water spray nozzle; 6. a smoke exhaust fan; 7. a pressure relief window; 8. an electric shutter; 9. a water fire interface; 10. the indicator light is not put in by deflation; 11. an audible and visual alarm; 12. an emergency start button; 13. a manual fire alarm button; 14. a smoke alarm; 15. fire control nozzle.
Detailed Description
The following detailed description of the utility model, taken in conjunction with the accompanying drawings, will provide those skilled in the art with a more readily understood understanding of how the utility model may be practiced. While the present utility model has been described in connection with the preferred embodiments thereof, these embodiments are set forth only and are not intended to limit the scope of the utility model.
The energy storage container fire-fighting system comprises a battery compartment and an electric compartment which are mutually separated, wherein a battery cluster consisting of a plurality of battery packs is arranged in the battery compartment, and the fire-fighting system comprises a thermal runaway detection alarm system and a fire suppression system; the thermal runaway detection alarm system comprises an alarm indicating device, a detection device for detecting temperature and smoke concentration changes in the battery pack, the battery compartment and the electric compartment, and a fire alarm control device 4 for receiving signals of the detection device to control the alarm indicating device and the fire suppression system to work; the fire suppression system comprises a spot spraying fire extinguishing device, a water spraying fire extinguishing device and a ventilation device.
As shown in fig. 1 and 2, two battery clusters are arranged in the battery compartment, each battery cluster comprises eight vertically arranged battery packs, and each battery pack is provided with a two-in-one composite detector 1, which is sixteen in number. The two-in-one composite detector 1 integrates detection of two signals, namely temperature and carbon monoxide, and can realize early detection alarm.
In addition, with the battery compartment and the electric compartment as the protection units, as shown in fig. 1, a plurality of five-in-one composite detectors 3 are arranged at the top of the battery compartment, parameter changes such as hydrogen, carbon monoxide, smoke and temperature of the whole battery compartment are detected, fire signal levels of the whole battery compartment are obtained, fire signals are simultaneously sent to a fire alarm control device 4, commands of the fire alarm control device 4 are responsible for spraying fire extinguishing devices, water spraying fire extinguishing devices and ventilation devices to the connection points of an external input/output logic expansion module 2, and action information of the spraying fire extinguishing devices, the water spraying fire extinguishing devices and the ventilation devices is fed back to the fire alarm control device 4, when a fire suppression system executes fire extinguishing work, as shown in fig. 4, the fire alarm control device 4 is linked to open a deflation no-entry indicator lamp 10 arranged on an energy storage container to prompt relevant personnel to do not enter the battery compartment.
As shown in fig. 3, a pressure release window 7 is arranged at the 2/3 position of the clean height of the battery compartment body, and when the pressure of the protective zone is raised to a certain value due to the spraying pressure of the fire extinguishing agent, part of air and the fire extinguishing agent are timely released to the outside of the compartment body through the pressure release window 7, so that the safety of the integral structure of the protective zone is ensured. When a two-in-one composite detector 1 on a certain battery pack in the battery compartment uploads a fire signal such as a three-level thermal runaway alarm signal, as shown in fig. 2, the fire alarm control device 4 is linked to open a corresponding cluster-level pipeline electromagnetic valve and a fire extinguishing device (the fire extinguishing device is connected with a fire extinguishing nozzle 15 and used for delivering fire extinguishing agent), the fire extinguishing device performs fire extinguishing actions, and the fire extinguishing nozzle 15 performs three spraying on a battery cluster where the thermal runaway battery pack is located, so that the effects of continuously cooling and suppressing fire are achieved. According to the thermal runaway condition in the battery compartment, if the five-in-one composite detector 3 uploads a three-level thermal runaway alarm signal, the fire alarm control device 4 can link to open the cabin-level pipeline electromagnetic valve so that all the fire control nozzles 15 perform total submerged injection protection on the whole battery compartment, and the thermal runaway is strictly prevented from spreading and diffusing.
As shown in fig. 5, the electric cabin is used as a single protection area, and is provided with a smoke alarm 14, when the smoke alarm 14 emits a fire signal, as shown in fig. 4, the fire alarm control device 4 is linked to open the audible and visual alarm 11 arranged on the energy storage container to carry out audible and visual prompt, and the fire suppression system is not started. The field personnel can manually open the portable dry powder fire extinguisher to manually extinguish the fire according to the actual situation.
The water spray fire extinguishing device is arranged at the top of the battery compartment, and when a fire disaster is uncontrollable, the fire disaster alarm control device 4 starts the water spray fire extinguishing device to realize continuous cooling and fire extinguishing of the whole compartment. The water source of the water spray fire extinguishing device comes from a nearby fire-fighting pipe network, as shown in fig. 3, a DN65 water fire-fighting interface 9 is arranged on the cabin body, two K=80 water spray nozzles 5 are uniformly arranged on the top of the battery cabin, and the water spray nozzles are uniformly arranged in the cabin body and are connected to the reserved water fire-fighting interface 9 of the cabin body through galvanized steel pipes.
As shown in fig. 3, two sets of smoke exhaust fans 6 and two sets of electric shutters 8 are arranged on the energy storage container, and the two sets of electric shutters 8 are matched with corresponding fan electric control cabinets, when the fan electric control cabinets receive lower-level fire signals such as second-level early warning signals of the fire alarm control device 4, the smoke exhaust fans 6 and the electric shutters 8 are opened for accident ventilation and cooling, if each parameter value in the energy storage container continuously rises, the fan electric control cabinets shut down the smoke exhaust fans 6 and the electric shutters 8 after receiving higher-level fire signals of the fire alarm control device 4, fire combustion supporting is prevented, and preparation is made for the work of the follow-up point spraying fire extinguishing device and the water spraying fire extinguishing device.
It should be noted that the energy storage container fire extinguishing system linkage is mainly divided into two modes of manual and automatic. When personnel enter the battery compartment for maintenance, the fire-fighting system is switched to a manual control state, and the fire-fighting system is not automatically started at the moment, and as shown in fig. 4, the fire-fighting system can be started only by pressing an emergency start button 12 arranged on the energy storage container. When the fire protection system is in the automatic control mode, the fire alarm control device 4 analyzes and processes the data from the detection device and operates in a hierarchical linkage with the alarm indication device and the fire suppression system. In addition, the energy storage container is also provided with a manual fire alarm button 13 for informing people to evacuate when finding fire.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420222601.6U CN221981435U (en) | 2024-01-30 | 2024-01-30 | Energy storage container fire extinguishing system and energy storage container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202420222601.6U CN221981435U (en) | 2024-01-30 | 2024-01-30 | Energy storage container fire extinguishing system and energy storage container |
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| CN221981435U true CN221981435U (en) | 2024-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119152664A (en) * | 2024-11-19 | 2024-12-17 | 山东电工时代能源科技有限公司 | Hierarchical fire-fighting early warning device, method and terminal of energy storage power station |
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2024
- 2024-01-30 CN CN202420222601.6U patent/CN221981435U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119152664A (en) * | 2024-11-19 | 2024-12-17 | 山东电工时代能源科技有限公司 | Hierarchical fire-fighting early warning device, method and terminal of energy storage power station |
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