CN216603874U - Two-stage fire extinguishing system with energy storage battery clusters - Google Patents
Two-stage fire extinguishing system with energy storage battery clusters Download PDFInfo
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- CN216603874U CN216603874U CN202220074551.2U CN202220074551U CN216603874U CN 216603874 U CN216603874 U CN 216603874U CN 202220074551 U CN202220074551 U CN 202220074551U CN 216603874 U CN216603874 U CN 216603874U
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- 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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Abstract
The utility model discloses a two-stage fire-fighting fire-extinguishing system with energy storage battery clusters, which comprises a box body assembly, battery assemblies and a fire-fighting protection assembly, wherein the battery assemblies are arranged in a container, are uniformly distributed and arranged, and consist of a plurality of battery clusters formed by stacking and connecting battery boxes in series side by side; and the fire-fighting protection assembly is arranged in the container and comprises a detection mechanism and a fire-fighting mechanism, wherein the fire-fighting mechanism comprises a primary battery box internal fire-fighting mechanism and a secondary battery cluster internal fire-fighting mechanism. Adopt the second grade to put out a fire, only carry out submerged fire extinguishing to the battery cabinet that breaks out a fire, both keep the high efficiency of putting out a fire and also suitably reduce the loss.
Description
Technical Field
The utility model relates to a fire-fighting system, in particular to a two-stage fire-fighting system with energy storage battery clusters, and belongs to the technical field of new energy fire-fighting.
Background
At present, a fire-fighting method for an energy storage container mainly comprises the step of installing a heptafluoropropane fire-extinguishing system in the container, wherein the system mainly comprises detection equipment and fire-extinguishing equipment, the detection equipment comprises a temperature-sensitive and smoke-sensitive detector arranged on the top inside the container, and the fire-extinguishing equipment comprises a control host, a heptafluoropropane reagent, a laid pipeline and a spray head. The basic principle is that when the temperature-sensing smoke detector at the top of the container detects that smoke is generated and the temperature rises in the container, the detector immediately sends a fire alarm signal to the fire-fighting host, the controller confirms that a fire happens according to the continuously transmitted alarm signal, the controller starts a fire extinguishing program, the electromagnetic valve above the heptafluoropropane reagent tank is opened, and the reagent is sprayed out from the spray head along a pipeline to fill the whole container.
The fire extinguishing principle is as follows: heptafluoropropane is stored in a high-pressure tank in a liquid state, and is quickly vaporized after being sprayed out from a spray head to absorb a large amount of heat; in addition, thermal decomposition thereof generates many fluorine-containing radicals, which react with active radicals generated by combustion to generate water and carbon dioxide, thereby interrupting combustion and preventing the spread of fire.
The lithium ion battery fire is mainly caused by single battery thermal runaway, and the lithium ion battery is accompanied by combustible gas release, electrolyte and reaction gas release, electrolyte thermal decomposition to generate a large amount of smoke and heat in the process from thermal runaway induction to final combustion. Therefore, the battery fire can be analyzed for gas so as to perform early warning.
The existing fire fighting method mainly refers to the design scheme of an automatic fire alarm system applied to buildings, the current energy storage industry is started, but the related standards are still imperfect. It disappears as energy storage power station safety fire control early warning system, has following not enough:
1) the lithium ion battery fire of the energy storage battery is a process, a large amount of combustible gas can be released in a long period of time when the fire does not occur, the typical smoke and temperature-sensitive fire detector cannot sense the early warning of the thermal runaway of the lithium ion battery, and when the detector gives a warning, the fire already spreads from a battery pack to the whole energy storage cabin, so that the method lacks the fire warning effect and only belongs to the fire extinguishing treatment after the thermal diffusion accident of the lithium ion battery occurs;
2) after a fire alarm is given, the heptafluoropropane reagent is sprayed in the container in a submerged manner, but the main area for fire extinguishment is the lithium ion battery in the battery box, so that the fire extinguishing reagent is difficult to quickly extinguish a fire source at a fixed point;
3) the fire fighting method has an independent system communication mechanism, independent fire sensing and fire extinguishing are carried out, effective linkage with a BMS (battery management system) is lacked, and when the fire extinguishing is carried out, batteries are connected in series and in parallel, so that the fire spreading is difficult to extinguish;
4) when the concentration of the heptafluoropropane is 9% -10%. 5, the stay time of the personnel cannot exceed 5min, and when the concentration exceeds 10.5%, the personnel are not allowed to stay. Therefore, after the heptafluoropropane is sprayed, the firefighters can not approach the heptafluoropropane, and the rescue time can be greatly delayed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a two-stage fire-fighting system with energy storage battery clusters.
The utility model realizes the purpose through the following technical scheme: two-stage fire-fighting fire extinguishing system with energy storage battery clusters comprises
The box body assembly forms a main body shell structure of the system and consists of a square container, a battery cluster is arranged in the container, the container is integrally welded by adopting a Q235B steel structure, and the outer wall surface of the container is welded with a 0.5mm stainless steel plate;
the battery components are arranged in the container, are uniformly distributed and arranged, and are formed by a battery cluster consisting of a plurality of battery boxes which are stacked side by side and connected in series;
and the fire-fighting protection assembly is arranged in the container and comprises a detection mechanism and a fire-fighting mechanism, wherein the fire-fighting mechanism comprises a primary battery box internal fire-fighting mechanism and a secondary battery cluster internal fire-fighting mechanism.
As a still further scheme of the utility model: the detection mechanism comprises a water level detector and a smoke detector which are installed at the top of the battery cluster, and a gas detector which is installed between the battery cell modules in the battery box, wherein each battery cluster corresponds to one fire-fighting host, and each detector of the fire-fighting host is connected with an electric signal.
As a still further scheme of the utility model: the fire-fighting fire-extinguishing mechanism in the primary battery box is composed of two spray heads arranged at the back of each battery box, and the spray heads are connected with fire-fighting agents in a fire-fighting cabinet arranged in the container through pipelines.
As a still further scheme of the utility model: the fire-fighting fire-extinguishing mechanism in the secondary battery cluster is composed of a water inlet pipe communicated with the upper end of the battery cluster and a water outlet pipe communicated with the lower end of the battery cluster, a water inlet valve is installed on the water inlet pipe, and a water outlet valve is installed on the water outlet pipe.
As a still further scheme of the utility model: the battery cabinet of the battery cluster adopts a metal frame and a closed door design, the metal frame is welded hermetically, and the closed door is designed with sealing rubber.
As a still further scheme of the utility model: still install the battery management system who constitutes by converging cabinet, block terminal and air conditioner in the container, and battery management system and every the fire control host computer that the battery cluster corresponds carries out the line connection.
The utility model has the beneficial effects that:
1. the gas sensor is arranged in the battery box, so that whether the battery cell is overcharged, overdischarged, extruded, punctured, internally and externally short-circuited or the like during installation or use, the battery cell abnormality can be detected at the first time, and an early warning signal is issued to the fire-fighting host;
2. carry out line connection with battery management system and fire control host computer, consequently the fire control system need not additionally install temperature sensor, can directly read the temperature parameter of BMS system, realizes the control of fire control system to every electric core. The temperature sensor of traditional fire control scheme installation at the container top not only overlaps with the temperature sensor of electric core to the temperature sensor at top also hardly accurately reflects the actual temperature of catching fire electric core. When a fire-fighting system finds that the temperature of a certain electric core is abnormal, thermal runaway occurs, a valve of a fire-fighting cabinet is immediately controlled to be opened, a fire-fighting reagent is sprayed into a battery box, the reagent is insulated and quickly vaporized to absorb a large amount of heat, the abnormal electric core is quickly cooled, and the thermal runaway is prevented from spreading;
3. if the cell performance is continuously out of control: temperature detection, gaseous detection lasts the warning, battery cluster top smoke detector detects smog and reaches fire concentration, the fire control host computer will be rapidly with the BMS linkage, cut off the power supply of electrical equipment such as container inside battery, fans, then open the inlet valve at battery cluster top and spray fire water and put out a fire, this fire water shower nozzle is also not conventional high-pressure water mist shower nozzle, but direct phi 10mm flood head carries out the fast water injection to the battery cluster, fire water carries out the submerged fire extinguishing to the battery cluster, ensure that the conflagration obtains thorough control. The traditional container is subjected to submerged gas isolation and fire extinguishing, so that the efficiency is low, and the fire source in the battery box cannot be extinguished. And if the container is directly submerged by water, unnecessary loss is caused, so the utility model only carries out submerged fire extinguishing on the battery cabinet which is in fire, thereby maintaining the high efficiency of fire extinguishing and properly reducing the loss.
Drawings
FIG. 1 is a schematic view of a container layout according to the present invention;
FIG. 2 is a schematic view of a battery box according to the present invention;
FIG. 3 is a schematic view of a battery cluster according to the present invention;
FIG. 4 is a schematic diagram of the fire extinguishing logic of the present invention;
in the figure: 1. the container, 2, the battery cluster, 3, the fire control host computer, 4, the cabinet that converges, 5, block terminal, 6, the fire control cabinet, 7, the air conditioner, 8, the battery box, 9, the inlet tube, 10, the water intaking valve, 11, the outlet pipe, 12, the outlet valve, 13, water level detector, 14, smoke detector, 15, electric core module, 16, gas detector, 17, shower nozzle.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 3: two-stage fire-fighting fire extinguishing system with energy storage battery clusters comprises
The container body assembly forms a main body shell structure of the system and consists of a square container 1, a battery cluster 2 is installed inside the container 1, the container 1 is integrally welded by adopting a Q235B steel structure, and the outer wall surface of the container is welded with a 0.5mm stainless steel plate;
the battery components are arranged in the container 1, are uniformly distributed and arranged, and are composed of a plurality of battery clusters 2 consisting of battery boxes 8 which are stacked in parallel and connected in series;
the fire protection subassembly, it sets up in container 1, and it includes detection mechanism and fire prevention mechanism that disappears, wherein, fire prevention mechanism that disappears includes the inside fire prevention mechanism that disappears of one-level battery box and the inside fire prevention mechanism that disappears of secondary battery cluster.
In the embodiment of the utility model, the detection mechanism comprises a water level detector 13 and a smoke detector 14 which are installed at the top of the battery cluster 2, and a gas detector 16 which is installed between the battery cell modules 15 in the battery box 8, each battery cluster 2 corresponds to one fire-fighting host 3, and each fire-fighting host 3 is uniformly connected with each detector in an electric signal manner, so that the running environment in the container 1 and the battery cluster 2 can be monitored.
In the embodiment of the utility model, the fire-fighting mechanism in the primary battery box is composed of two spray heads 17 arranged at the back of each battery box 8, the spray heads 17 are connected with fire-fighting reagents in a fire-fighting cabinet 6 arranged in a container 1 through pipelines, when a sensor in the battery box 8 detects that the gas concentration reaches an alarm level, an alarm signal can be sent to the fire-fighting host 3, the fire-fighting host 3 controls a valve of the fire-fighting cabinet 6 to be opened, the reagents are sprayed into the battery box 8, the reagents take away a large amount of heat through vaporization, and the electric core in the battery pack is cooled at a fixed point, so that the fire probability is reduced to the maximum extent, and the primary fire-fighting is realized.
In the embodiment of the utility model, the fire-fighting mechanism inside the secondary battery cluster is composed of a water inlet pipe 9 communicated with the upper end of the battery cluster 2 and a water outlet pipe 11 communicated with the lower end of the battery cluster 2, a water inlet valve 10 is installed on the water inlet pipe 9, a water outlet valve 12 is installed on the water outlet pipe 11, when a smoke detector 14 at the top detects that the concentration of a large number of organic matter particles reaches the fire level, the water inlet valve 10 at the top of the battery cluster 2 is opened, the water outlet pipe 11 at the top is controlled to immediately spray fire-fighting water for continuous irrigation, the battery box 8 of the battery cluster 2 is submerged fire-fighting until the cabinet of the whole battery cluster 2 is filled, the water level detector 13 judges that the cabinet of the whole battery cluster 2 is submerged by the fire-fighting water, and the fire-fighting host 3 receives a signal and stops spraying fire-fighting water to realize secondary fire-fighting.
In the embodiment of the utility model, the battery cabinet of the battery cluster 2 adopts a metal frame and a closed door design, the metal frame is welded and sealed integrally, the closed door is designed with sealing rubber, the battery cabinet is ensured to be sealed integrally after being closed, and fire water is sprayed into the battery cabinet and cannot leak.
In the embodiment of the present invention, a battery management system including a combiner cabinet 4, a distribution box 5, and an air conditioner 7 is further installed in the container 1, and the battery management system is connected to the fire-fighting host 3 corresponding to each battery cluster 2 by a line, so that the fire-fighting host 3 can determine a fire-fighting action based on the acquired temperature data of the BMS system.
Example two
As shown in fig. 1 to 4: a use method of a two-stage fire-fighting fire extinguishing system with an energy storage battery cluster comprises the following steps:
step one, an EEP09 type built-in gas sensor is installed in a battery box, an EViBMM-2412 battery management module is installed on a front panel of the battery box, and the module supports 24 paths of voltage acquisition and 24 paths of temperature acquisition. Two high-pressure atomizing nozzles connected with a PVC pipeline are arranged on the upper side of the back of the battery box, the nozzle main body is made of brass, the diameter of the external thread at the other end is 9.5mm, the nozzle main body is in threaded connection with the pipeline, and an EVFH-F-3W-02 type fire-fighting host is arranged on the wall surface of the container beside the battery cluster. Detect gas concentration when the battery box inner sensor, will at first carry out the analysis detection and judge dangerous grade, and send early warning information to the fire-fighting host computer, the fire-fighting host computer reads the electric core temperature parameter that BMS system sent simultaneously, when discovering that electric core temperature surpasss normal scope, will issue and spray the perfluorohexanone instruction, fire-fighting host computer control fire-fighting cabinet valve is opened, perfluorohexanone sprays the cooling along the inside high pressure nozzle of battery box, perfluorohexanone takes away a large amount of heat through vaporization, carry out the fixed point cooling to electric core in the battery package, furthest reduces conflagration probability.
And step two, the battery frame is integrally welded by adopting a Q235B steel structure, and the outer wall surface is welded with a 0.5mm stainless steel plate. 2w normally closed DC24V water valve switch is selected by the solenoid valves at the top and the bottom of the battery cabinet, and the switch of a brass water nozzle with the diameter of 10mm connected with the switch is controlled. The ASD air suction type smoke detector is installed at the top of the battery cabinet, and smoke particles of 0.01-1 um are accurately analyzed. The MIK-ZMP small-range ultrasonic liquid level meter is arranged at the top of the battery cabinet, and the liquid level distance is calculated by using the time required by transmitting ultrasonic reflection. When the gas concentration in the battery box continuously rises, the temperature of the battery core continuously rises, the smoke detector at the top of the battery cluster detects that the smoke concentration reaches the fire disaster concentration, and the smoke alarm sends alarm information. When the fire control host computer received secondary alarm signal, the temperature parameter that combines the BMS transmission, it does not obtain effective control to judge that electric core thermal runaway in the battery package is out of control, the inside a large amount of smog that takes place of battery package gets into the battery cabinet, judge that the conflagration is about to or has taken place, the fire control host computer links with the BMS, cut off the power supply of electrical equipment such as the inside battery of container at once, open battery cluster top inlet valve, the water shower nozzle at control top sprays at once and puts out a fire, metal crate and closed door design are taken to this battery cabinet, the whole welding of metal crate is airtight, closed door design has sealing rubber, ensure that the battery cabinet is whole sealed after closing, can not take place to leak after the fire water spouts into the battery cabinet. Fire water continuously sprays, carries out submerged fire control to the battery package of battery cluster, until filling up the cabinet body of whole battery cluster, and the water level detector at cabinet body top calculates according to the ultrasonic wave and judges that fire water floods whole battery cabinet, and when the water level reached battery cabinet top, level sensor detected the water level and has flooded, to fire control host computer send signal, stopped spraying, and fire control host computer receives the signal, stops spraying fire water. After the fire is completely controlled, a water outlet pipe at the bottom of the battery cluster is opened, and the wastewater is connected with an external wastewater pool
The working principle is as follows: when the fire-fighting host receives the first alarm signal, the potential thermal runaway hazard of the battery core in the battery pack is judged, and a cooling reagent is sprayed to rapidly cool so as to realize first-level fire-fighting and fire-extinguishing; when the fire control host computer received secondary alarm signal, the temperature parameter that combines the BMS transmission, judges that the battery cell thermal runaway in the battery box does not obtain effective control, and battery box inside takes place a large amount of smog and gets into the battery cabinet, sprays fire water and carries out the second grade fire control and put out a fire.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an energy storage battery cluster two-stage fire extinguishing system which characterized in that: comprises that
The box body assembly forms a main body shell structure of the system and consists of a square container (1), a battery cluster (2) is installed inside the container (1), and the container (1) is integrally welded by adopting a Q235B steel structure;
the battery components are arranged in the container (1), are uniformly distributed and arranged, and are formed by a battery cluster (2) consisting of a plurality of battery boxes (8) which are stacked in parallel and connected in series;
the fire protection assembly is arranged in the container (1) and comprises a detection mechanism and a fire extinguishing mechanism, wherein the fire extinguishing mechanism comprises a primary battery box internal fire extinguishing mechanism and a secondary battery cluster internal fire extinguishing mechanism.
2. A two-stage fire extinguishing system with energy storage battery clusters according to claim 1, characterized in that: detection mechanism is including installing water level detector (13) and smoke detector (14) at battery cluster (2) top and installing gas detector (16) between electric core module (15) in battery box (8), and every battery cluster (2) all correspond one fire control host computer (3), every the even each detector of fire control host computer (3) is signal connection.
3. A two-stage fire extinguishing system with energy storage battery clusters according to claim 1, characterized in that: the fire-fighting fire-extinguishing mechanism in the primary battery box is composed of two spray heads (17) arranged at the back of each battery box (8), and the spray heads (17) are connected with fire-fighting agents in a fire-fighting cabinet (6) arranged in the container (1) through pipelines.
4. A two-stage fire extinguishing system with energy storage battery clusters according to claim 1, characterized in that: the fire-fighting and fire-extinguishing mechanism in the secondary battery cluster is composed of a water inlet pipe (9) communicated with the upper end of the battery cluster (2) and a water outlet pipe (11) communicated with the lower end of the battery cluster (2), a water inlet valve (10) is installed on the water inlet pipe (9), and a water outlet valve (12) is installed on the water outlet pipe (11).
5. A two-stage fire extinguishing system with energy storage battery clusters according to claim 4, characterized in that: the battery cabinet of the battery cluster (2) adopts a metal frame and a closed door design, the metal frame is welded hermetically, and the closed door is designed with sealing rubber.
6. A two-stage fire extinguishing system with energy storage battery clusters according to claim 1, characterized in that: still install the battery management system who constitutes by converging cabinet (4), block terminal (5) and air conditioner (7) in container (1), and battery management system and every fire control host computer (3) that battery cluster (2) correspond carry out the line connection.
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| CN202220074551.2U CN216603874U (en) | 2022-01-12 | 2022-01-12 | Two-stage fire extinguishing system with energy storage battery clusters |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115337577A (en) * | 2022-08-19 | 2022-11-15 | 江苏天合储能有限公司 | Liquid cooling cabinet fire fighting method and system and liquid cooling cabinet |
| CN115364405A (en) * | 2022-08-24 | 2022-11-22 | 中国第一汽车股份有限公司 | Power battery system, power battery fire extinguishing system and method and vehicle |
| CN115382131A (en) * | 2022-08-25 | 2022-11-25 | 兴数能源科技有限公司 | Fire fighting system and method for light storage micro-grid scene |
| CN115548483A (en) * | 2022-11-30 | 2022-12-30 | 绿能慧充数字技术有限公司 | Energy storage system and control method thereof |
| CN115832473A (en) * | 2023-02-03 | 2023-03-21 | 江苏思贝尔海纳储能科技有限公司 | Novel energy storage system |
| TWI818666B (en) * | 2022-08-10 | 2023-10-11 | 台泥儲能科技股份有限公司 | Energy storage apparatus and fire extinguishing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI818666B (en) * | 2022-08-10 | 2023-10-11 | 台泥儲能科技股份有限公司 | Energy storage apparatus and fire extinguishing method thereof |
| CN115337577A (en) * | 2022-08-19 | 2022-11-15 | 江苏天合储能有限公司 | Liquid cooling cabinet fire fighting method and system and liquid cooling cabinet |
| CN115364405A (en) * | 2022-08-24 | 2022-11-22 | 中国第一汽车股份有限公司 | Power battery system, power battery fire extinguishing system and method and vehicle |
| CN115364405B (en) * | 2022-08-24 | 2024-03-22 | 中国第一汽车股份有限公司 | Power battery system, power battery fire extinguishing system, method and vehicle |
| CN115382131A (en) * | 2022-08-25 | 2022-11-25 | 兴数能源科技有限公司 | Fire fighting system and method for light storage micro-grid scene |
| CN115548483A (en) * | 2022-11-30 | 2022-12-30 | 绿能慧充数字技术有限公司 | Energy storage system and control method thereof |
| CN115832473A (en) * | 2023-02-03 | 2023-03-21 | 江苏思贝尔海纳储能科技有限公司 | Novel energy storage system |
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