CN114699679A - Air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system and method - Google Patents
Air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system and method Download PDFInfo
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- CN114699679A CN114699679A CN202210400519.3A CN202210400519A CN114699679A CN 114699679 A CN114699679 A CN 114699679A CN 202210400519 A CN202210400519 A CN 202210400519A CN 114699679 A CN114699679 A CN 114699679A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 59
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- IYRWEQXVUNLMAY-UHFFFAOYSA-N carbonyl fluoride Chemical compound FC(F)=O IYRWEQXVUNLMAY-UHFFFAOYSA-N 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 3
- 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 abstract description 9
- 230000002265 prevention Effects 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 description 5
- YUMDTEARLZOACP-UHFFFAOYSA-N 2,2,3,3,4,4,5,5,6,6-decafluorocyclohexan-1-one Chemical compound FC1(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C1(F)F YUMDTEARLZOACP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 229960004624 perflexane Drugs 0.000 description 3
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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- 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
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/62—Pipe-line systems dry, i.e. empty of extinguishing material when not in use
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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
Abstract
The invention belongs to the technical field of energy storage lithium battery fire extinguishing, in particular to an air-cooled energy storage lithium battery cluster-level local application PACK accurate fire extinguishing system and a method, which comprises a perfluoro-hexanone fire extinguishing box and a main control module for controlling the on-off of the perfluoro-hexanone fire extinguishing box, wherein the output end of the perfluoro-hexanone fire extinguishing box is fixedly provided with a main conveying pipeline, and the output end of the main conveying pipeline is fixedly provided with a plurality of regional control valves. The method has the advantages of accuracy, high efficiency, regional protection, prevention of thermal runaway propagation and the like.
Description
Technical Field
The invention belongs to the technical field of energy storage lithium battery fire extinguishing, and particularly relates to an air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system and method.
Background
New energy is developed rapidly, and the energy storage technology has great significance for the development of new energy. The lithium battery has the advantages of high density, high energy storage rate, long cycle life and the like, and is widely applied to an energy storage system.
However, the lithium battery has strict requirements on the working temperature, and particularly has certain potential safety hazard of thermal runaway in a high-temperature environment.
At present, the lithium battery energy storage system adopts gaseous fire extinguishing systems as the first-choice scheme of fire control more, and air-cooled lithium battery thermal management system can lead to the energy storage cabin leakproofness to reduce indirectly, in case take place the condition of a fire, gaseous fire extinguishing systems release the medium of putting out a fire and are difficult to reach required concentration of putting out a fire in the cabin to reduce the fire control effect, can not effectively exert fire extinguishing systems' effect.
Disclosure of Invention
The invention provides an air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system and method, which are mainly applied to an energy storage station adopting an air-cooled lithium battery thermal management system to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the air-cooled type energy storage lithium battery cluster-level local application PACK accurate fire extinguishing system comprises a perfluoro-hexane fire extinguishing box and a main control module for controlling the opening and closing of the perfluoro-hexane fire extinguishing box, wherein a main conveying pipeline is fixedly arranged at the output end of the perfluoro-hexane fire extinguishing box, a plurality of regional control valves are fixedly arranged at the output end of the main conveying pipeline, the number of the regional control valves is equal to the number of the cluster-level energy storage lithium battery PACKs in a battery cabinet, a plurality of branch conveying pipelines are fixedly arranged at the output end of each regional control valve, the number of the branch conveying pipelines is equal to the number of the PACK-level energy storage lithium battery PACKs in the cluster-level energy storage lithium battery PACKs, a spray head is fixedly arranged at the output end of each branch conveying pipeline, the spray heads are correspondingly arranged above each PACK-level energy storage lithium battery PACK, and a detection module for detecting the temperature information of the PACK-level energy storage lithium battery PACKs is arranged on each cluster-level energy storage lithium battery PACK, and the detection module is used for transmitting the detected temperature information to the main control module.
Preferably, a plurality of branch delivery pipes are installed in parallel at the output end of the zone control valve.
Preferably, the output end of the branch conveying pipeline is fixedly provided with a spray head mounting frame, and the spray head is fixedly mounted on the spray head mounting frame.
Preferably, the number of the spray heads mounted on each spray head mounting frame is more than one.
Preferably, the detection module includes a BMS module, a combustible gas detector, and a smoke detector.
Preferably, the BMS module is used for detecting the temperature information of the PACK-level energy storage lithium battery PACK.
Preferably, the combustible gas detector is used for detecting the concentration information of the combustible gas in the cluster-level energy storage lithium battery pack.
Preferably, the smoke detector is used for detecting smoke concentration information in the cluster-level energy storage lithium battery pack.
The invention provides another technical scheme, and the fire extinguishing method of the air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system comprises the following steps:
step S1, PACK fire alarm: the BMS module provides temperature alarm information to the main control module, and the main control module feeds back information to the perfluoro-ketone fire extinguishing box to enter an early warning state; simultaneously opening the area control valve of the area, and conducting the fire extinguishing agent conveying path in advance;
step S2, primary spraying and fire extinguishing of PACK level: when the combustible gas detector detects combustible gas and the concentration reaches a first-level threshold value, the perfluoro-cyclohexanone fire extinguishing box is started to carry out first-level PACK fire extinguishing, and the spraying time is 20s in a cluster-level spraying mode;
step S3, secondary PACK spraying fire extinguishing: if the fire is upgraded, when the combustible gas detector detects that the concentration of the combustible gas reaches a second-level threshold value, or the smoke detector detects that smoke gives an alarm, and the first trigger condition and the second trigger condition are prioritized, starting the perfluorinated ketone fire extinguishing box to perform second-level PACK fire extinguishing, and still performing cluster-level spraying for 20 s;
step S4, PACK-level three-time spraying fire extinguishing: if the fire is continuously upgraded, when the condition of not triggering during the second time of spraying is triggered, the perfluoro ketone fire extinguishing box is restarted to carry out the third time of PACK-level fire extinguishing, and the cluster-level spraying mode is still adopted, and the spraying time is 20 s.
Compared with the prior art, the invention has the beneficial effects that:
the system adopts PACK-level fire extinguishing and cluster-level fire extinguishing agent spraying modes to solve the fire safety problem that the traditional fire extinguishing medium in the air-cooled energy storage cabin cannot form effective fire extinguishing concentration at a fire point, and simultaneously considers the problem of preventing flame spread.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of the distribution of the spray heads of the present invention;
FIG. 3 is a schematic diagram of the distribution of branch delivery pipes and sprinklers according to the present invention.
In the figure: 1. a perfluorohexanone fire extinguishing chamber; 2. a main conveying pipe; 3. a zone control valve; 4. a branch delivery conduit; 41. a nozzle mounting frame; 5. a detection module; 6. a main control module; 7. a cluster-level energy storage lithium battery pack; 71. a PACK-grade energy storage lithium battery PACK; 8. and (4) a spray head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the air-cooled type energy storage lithium battery cluster-level local application PACK accurate fire extinguishing system comprises a perfluoro-hexanone fire extinguishing box 1 and a main control module 6 for controlling the on-off of the perfluoro-hexanone fire extinguishing box 1, wherein the output end of the perfluoro-hexanone fire extinguishing box 1 is fixedly provided with a main conveying pipeline 2, the output end of the main conveying pipeline 2 is fixedly provided with a plurality of regional control valves 3, the number of the regional control valves 3 is equal to the number of cluster-level energy storage lithium battery PACKs 7 in a battery cabinet, the output end of each regional control valve 3 is fixedly provided with a plurality of branch conveying pipelines 4, the number of the branch conveying pipelines 4 is equal to the number of PACK-level energy storage lithium battery PACKs 71 in the cluster-level energy storage lithium battery PACKs 7, the output end of each branch conveying pipeline 4 is fixedly provided with a spray head 8, the spray head 8 is correspondingly arranged above each PACK-level energy storage lithium battery PACK 71, each cluster-level energy storage lithium battery PACK 7 is provided with a detection module 5 for detecting the temperature information of the PACK-level energy storage lithium battery PACKs 71, and the detection module 5 is used for transmitting the detected temperature information to the main control module 6.
In this embodiment, this system is mainly applied to the energy storage station that adopts air-cooled lithium cell thermal management system, it is controlled perfluor ketone case 1 by host system 6, arrange a set of independent blow-off pipeline (being the combination of branch road pipeline 4 and shower nozzle 8) for every PACK level energy storage lithium cell group 71, when PACK level takes place the conflagration, all PACK that the pipeline is to PACK level battery and its place is in a cluster blow out perfluor ketone gas, each cluster is a protection subregion, each protection subregion sets up independent regional control valve 3, according to the alarm information that host system 6 received, by the opening or closing of host system 6 control relevant regional control valve 3, switch on fire extinguishing agent pipeline, fire extinguishing agent switches on the pipeline via regional control valve 3 and carries to the region that triggers the warning, carry out the release of fire extinguishing agent, accomplish and put out the fire.
So, this system adopts PACK level to put out a fire, the fire extinguishing agent mode is put in cluster level and is spouted and solve the traditional fire extinguishing medium in air-cooled energy storage cabin and can't form the fire control safety problem of effective concentration of putting out a fire in ignition point department, and compromise simultaneously and prevent that flame from stretching the problem, realize accurately finding out the ignition point through one set of intelligent control system, PACK and place cluster to catching a fire carry out whole spouting, when using perfluor hexanone gas to put out PACK level conflagration, protect whole cluster, can accurately realize the protection of putting out a fire to PACK level lithium cell group, it is accurate high-efficient to have, regional protection, prevent that thermal runaway from stretching, the simplified control mode, practice thrift advantages such as control flap material cost.
Specifically, a plurality of branch conveying pipelines 4 are installed at the output end of the regional control valve 3 in parallel, so that after the regional control valve 3 is opened, the perfluoro-hexanone fire extinguishing agent can be simultaneously conveyed into the branch conveying pipelines 4 through the main conveying pipeline 2, and the perfluoro-hexanone flow is large.
Further, branch road pipeline 4's output end is fixed and is equipped with shower nozzle mounting bracket 41, 8 fixed mounting of shower nozzle on shower nozzle mounting bracket 41, 8 quantity settings of shower nozzle of installation on every shower nozzle mounting bracket 41 are more than one, so, under perfluor has ketone extinguishing agent access state, can be quick with perfluor has ketone extinguishing agent from 8 blowout of shower nozzle, make 8 flows of shower nozzle big, the fire control effect is good.
Specifically, the detection module 5 includes a BMS module, a combustible gas detector, and a smoke detector.
Wherein, the BMS module is used for detecting the temperature information of PACK level energy storage lithium cell group 71, and the combustible gas detector is used for detecting the interior combustible gas concentration information of cluster level energy storage lithium cell group 7, and the smoke detector is used for detecting the interior smoke concentration information of cluster level energy storage lithium cell group 7, all can provide information for host system 6.
The invention provides another technical scheme, and the fire extinguishing method of the air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system comprises the following steps:
step S1, PACK fire alarm: the BMS module provides temperature alarm information to the main control module 6, and the main control module 6 feeds back information to the perfluoro-cyclohexanone fire extinguishing box 1 to enter an early warning state; meanwhile, opening the area control valve 3 in the area to pre-conduct the fire extinguishing agent conveying path;
step S2, primary spraying and fire extinguishing of PACK level: when the combustible gas detector detects combustible gas and the concentration reaches a first-level threshold value, the perfluoro-cyclohexanone fire extinguishing box 1 is started to perform first-level PACK fire extinguishing, and the spraying time is 20s in a cluster-level spraying mode;
step S3, secondary PACK spraying fire extinguishing: if the fire is upgraded, when the combustible gas detector detects that the concentration of the combustible gas reaches a second-level threshold value or the smoke detector detects that smoke gives an alarm, and the first trigger condition and the second trigger condition are prioritized, the perfluoro-cyclohexanone fire extinguishing box 1 is started to carry out second-level PACK fire extinguishing, and the cluster-level spraying mode is still adopted, and the spraying time is 20 s;
step S4, PACK-level three-time spraying fire extinguishing: if the fire is continuously upgraded, when the condition of not triggering during the second time of spraying is triggered, the perfluoro ketone fire extinguishing box 1 is started again to carry out the third time of PACK-level fire extinguishing, and the cluster-level spraying mode is still adopted, and the spraying time is 20 s.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Accurate fire extinguishing systems of air-cooled energy storage lithium cell cluster level local application pack, its characterized in that: the device comprises a perfluoro ketone fire extinguishing box (1) and a main control module (6) for controlling the perfluoro ketone fire extinguishing box (1) to be opened and closed, wherein the output end of the perfluoro ketone fire extinguishing box (1) is fixedly provided with a main conveying pipeline (2), the output end of the main conveying pipeline (2) is fixedly provided with a plurality of regional control valves (3), the number of the regional control valves (3) is correspondingly equal to the number of cluster-level energy storage lithium battery PACKs (7) in a battery cabinet, the output end of each regional control valve (3) is fixedly provided with a plurality of branch conveying pipelines (4), the number of the branch conveying pipelines (4) is correspondingly equal to the number of PACK-level energy storage lithium battery PACKs (71) in the cluster-level energy storage lithium battery PACKs (7), each output end of each branch conveying pipeline (4) is fixedly provided with a spray head (8), and each spray head (8) is correspondingly arranged above each PACK-level energy storage lithium battery PACK (71), every all be equipped with on the cluster level energy storage lithium cell group (7) and be used for detecting detection module (5) of PACK level energy storage lithium cell group (71) temperature information, just detection module (5) are used for transmitting the temperature information who detects for host system (6).
2. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 1, characterized in that: the branch conveying pipelines (4) are installed at the output end of the area control valve (3) in parallel.
3. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 2, characterized in that: the output end of the branch conveying pipeline (4) is fixedly provided with a sprayer mounting frame (41), and the sprayer (8) is fixedly mounted on the sprayer mounting frame (41).
4. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 3, characterized in that: the number of the spray heads (8) arranged on each spray head mounting frame (41) is more than one.
5. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 1, characterized in that: the detection module (5) comprises a BMS module, a combustible gas detector and a smoke detector.
6. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 5, characterized in that: the BMS module is used for detecting the temperature information of the PACK-level energy storage lithium battery PACK (71).
7. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 5, characterized in that: the combustible gas detector is used for detecting the concentration information of the combustible gas in the cluster-level energy storage lithium battery pack (7).
8. The air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 5, characterized in that: the smoke detector is used for detecting smoke concentration information in the cluster-level energy storage lithium battery pack (7).
9. A fire extinguishing method of the air-cooled energy storage lithium battery cluster-level local application pack accurate fire extinguishing system according to claim 5 is characterized in that: the method comprises the following steps:
step S1, PACK fire alarm: the BMS module provides temperature alarm information for the main control module (6), and the main control module (6) feeds back information to the perfluoro-ketone fire extinguishing box (1) to enter an early warning state; simultaneously opening the area control valve (3) of the area, and conducting a fire extinguishing agent conveying path in advance;
step S2, primary spraying and fire extinguishing of PACK level: when the combustible gas detector detects combustible gas and the concentration reaches a first-level threshold value, the perfluoro-ketone fire extinguishing box (1) is started to carry out first PACK-level fire extinguishing, and the spraying time is 20s in a cluster-level spraying mode;
step S3, secondary PACK spraying fire extinguishing: if the fire is upgraded, when the combustible gas detector detects that the concentration of the combustible gas reaches a second-level threshold value, or the smoke detector detects that smoke gives an alarm, and the first trigger condition is given priority to the combustible gas and the smoke, the perfluoro-ketone fire extinguishing box (1) is started to carry out second-level PACK fire extinguishing, and the fire extinguishing is still in a cluster-level spraying mode, and the spraying time is 20 s;
step S4, PACK-level three-time spraying fire extinguishing: if the fire is continuously upgraded, when the condition of not triggering during the second time of spraying is triggered, the perfluoro ketone fire extinguishing box (1) is started again to carry out the third time of PACK-level fire extinguishing, and the spraying time is 20 s.
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| CN115068863A (en) * | 2022-07-22 | 2022-09-20 | 中国建筑科学研究院有限公司 | Container type lithium battery energy storage power station fireproof system |
| CN115671618A (en) * | 2022-10-29 | 2023-02-03 | 江苏富仁能源科技有限公司 | Perfluoro-hexanone fire-fighting and fire-extinguishing system for container with battery compartment of energy storage system |
| CN115837132A (en) * | 2022-10-27 | 2023-03-24 | 厦门海辰储能科技股份有限公司 | Energy storage power supply fire fighting system, control method and readable storage medium |
| CN116392759A (en) * | 2023-06-05 | 2023-07-07 | 苏州精控能源科技有限公司 | Energy storage container fire-fighting method with self-checking function |
| CN116387719B (en) * | 2023-06-05 | 2023-08-11 | 苏州精控能源科技有限公司 | Container energy storage system based on intelligent fire control management function |
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