CN114712749A - Fire-fighting system for energy storage container - Google Patents
Fire-fighting system for energy storage container Download PDFInfo
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- CN114712749A CN114712749A CN202210127880.3A CN202210127880A CN114712749A CN 114712749 A CN114712749 A CN 114712749A CN 202210127880 A CN202210127880 A CN 202210127880A CN 114712749 A CN114712749 A CN 114712749A
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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
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- 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
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to a fire fighting system for an energy storage container, which comprises a battery unit, a fire fighting unit, a detection unit and a central control unit. According to the invention, the standard temperature range is arranged in the central control unit and is compared with the real-time temperature in the energy storage container, so that the fire state in the energy storage container can be found in time, when the fire state in the energy storage container cannot be determined through the temperature, whether the fire exists in the energy storage container is judged by detecting the real-time current of each battery cabinet, the judgment can be carried out on each battery cabinet, the detection range is further reduced, the fire can be found in time, meanwhile, a plurality of telescopic fire nozzles are arranged in the fire control unit, the fire is extinguished for the energy storage container according to the fire grade judged by the smoke concentration, when the fire is small, the fire is extinguished in time aiming at the position, the energy loss is ensured, when the fire is large, the fire is extinguished comprehensively in a coverage manner, and the safety of the energy storage container is further ensured.
Description
Technical Field
The invention relates to the technical field of battery fire safety, in particular to a fire-fighting system for an energy storage container.
Background
The energy storage container is an integrated energy storage system developed aiming at the requirements of a mobile energy storage market, a battery cabinet, a battery management system, a container dynamic loop monitoring system and a fire fighting system are integrated in the energy storage container, the energy storage container has the characteristics of simplified infrastructure construction cost, short construction period, high modularization degree, convenience in transportation and installation and the like, and can be suitable for application occasions of power stations, wind energy, solar energy and the like, or islands, districts, schools, scientific research institutions, factories, large load centers and the like.
The fire risk of the integrated battery cabinet in the energy storage container is full of the whole life cycle, and is not neglected from manufacturing, logistics, storage and end users, the reason that the battery has the fire risk is that the battery can self-ignite and then explode due to overheating, the reasons for overheating include electrical short circuit, quick discharge, overcharge, manufacturing defects, poor design or mechanical damage, and the like, once a certain battery unit enters a thermal runaway state, the battery unit can generate enough heat to enable adjacent battery units to also enter the thermal runaway state, necessary fire prevention and extinguishing measures should be taken to reduce the risk and improve the safety, but in the existing energy storage container fire protection system, because the potential safety hazard of the integrated battery cabinet in the operation process cannot be timely detected, the energy storage container is often subjected to fire hazard or even explosion, not only the energy is lost and the surrounding environment is influenced, but also the life safety of workers is threatened.
Disclosure of Invention
Therefore, the invention provides a fire fighting system for an energy storage container, which is used for solving the problems that the fire state in the energy storage container is not detected timely and the safety of the energy storage container cannot be ensured in the prior art.
To achieve the above objects, the present invention provides a fire fighting system for an energy storage container, comprising,
a battery unit disposed inside the energy storage container; a plurality of battery cabinets are arranged in the battery units and used for storing electric energy;
the fire fighting unit is arranged at the upper part of the battery unit and is used for extinguishing the fire of the battery unit; a plurality of telescopic fire-fighting nozzles are arranged in the fire-fighting unit, each telescopic fire-fighting nozzle corresponds to each battery cabinet, and the telescopic fire-fighting nozzles can spray fire extinguishing agents at different positions for each battery cabinet; the upper part of the fire-fighting unit is provided with an alarm device for alarming the fire in the energy storage container;
a detection unit disposed at one side of the fire fighting unit; a temperature detection device is arranged in the detection unit and used for detecting the real-time temperature inside the energy storage container; a smoke detection device is arranged in the detection unit and used for detecting the smoke concentration in the energy storage container; the detection unit is internally provided with a battery detection device, the battery detection device is respectively connected with each battery cabinet of the battery unit, and the battery detection device can detect the current and the voltage in each battery cabinet;
the central control unit is respectively connected with the battery unit, the fire fighting unit and the detection unit and is used for controlling the working state of each component in each unit; a standard temperature range is arranged in the central control unit, and the central control unit can judge whether a fire exists according to the real-time temperature detected by the temperature detection device; a standard current range is arranged in the central control unit, and the central control unit judges whether a fire exists in each battery cabinet according to the real-time current of each battery cabinet detected by the battery detection device; the central control unit can adjust the standard temperature range according to the standard current range and the real-time current of each battery cabinet; the central control unit can judge the state of each battery cabinet according to the voltage fluctuation in each battery cabinet detected by the battery detection device; the central control unit can adjust the standard temperature range according to the state of each battery cabinet; a standard smoke concentration range is arranged in the central control unit, and the central control unit can judge the fire level according to the real-time smoke concentration detected by the smoke sensation detection device; the central control unit can control the working state of each telescopic fire-fighting nozzle in the fire-fighting unit according to the fire condition grade.
Furthermore, a first preset temperature T1 and a second preset temperature T2 are arranged in the central control unit, wherein T1 is less than T2, the temperature detection device detects a real-time temperature Ts in the energy storage container, the central control unit compares the real-time temperature Ts with the first preset temperature T1 and the second preset temperature T2 respectively,
when Ts is less than or equal to T1, the central control unit judges that the real-time temperature is lower than a first preset temperature and judges that no fire exists in the energy storage container;
when T1 is greater than Ts and is not greater than T2, the central control unit judges that the real-time temperature is between a first preset temperature and a second preset temperature, and judges that the fire hazard exists in the energy storage container, and the central control unit judges whether the fire exists according to the internal current of each battery cabinet to determine whether the fire exists;
and when Ts is larger than T2, the central control unit judges that the real-time temperature is higher than a second preset temperature, and judges that a fire condition exists in the energy storage container.
Furthermore, a standard current Ab and a standard current difference Δ Ab inside the battery cabinets are arranged in the central control unit, when the central control unit determines that the real-time temperature inside the energy storage container is between a first preset temperature and a second preset temperature, the battery detection device detects the real-time current inside each battery cabinet, the central control unit calculates the real-time current difference Δ As inside the battery cabinet according to the real-time current As inside any one battery cabinet and the standard current Ab, the Δ As | Ab-As |, and compares the real-time current difference Δ As inside the battery cabinet with the standard current difference Δ Ab,
when the delta As is less than or equal to the delta Ab, the central control unit judges that the real-time current in the battery cabinet is in a standard range, and the central control unit judges that the battery cabinet does not have a fire;
when the delta As is larger than the delta Ab, the central control unit judges that the real-time current in the battery cabinet is not in the standard range, and the central control unit compares the real-time current As in the battery cabinet with the standard current Ab to determine whether the battery cabinet has a fire or not.
Further, when the central control unit judges that the real-time current in the battery cabinet is not in the standard range, the central control unit compares the real-time current As in the battery cabinet with the standard current Ab,
when As is less than Ab, the central control unit judges that the real-time current in the tank cabinet is lower than the standard current, adjusts the second preset temperature to T2', T2 ═ T2 × (1-delta As/Ab), and repeats the comparison and judgment operation of the real-time temperature, the first preset temperature and the second preset temperature so As to determine whether a fire exists in the energy storage container;
when As is larger than Ab, the central control unit judges that the real-time current in the battery cabinet is higher than the standard current, and the central control unit judges according to the voltage fluctuation value in the battery cabinet to determine whether a fire exists in the energy storage container.
Furthermore, a maximum voltage fluctuation value Vb is arranged in the central control unit, when the central control unit judges that the real-time current in the battery cabinet is higher than the standard current, the battery detection device detects the real-time voltage fluctuation value Vs of each battery cabinet, the central control unit compares the real-time voltage fluctuation value Vs with the maximum voltage fluctuation value Vb,
when Vs is less than or equal to Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet does not exceed the maximum voltage fluctuation value, and the central control unit judges the battery cabinet as an abnormal battery cabinet;
when Vs is larger than Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet exceeds the maximum voltage fluctuation value, and the central control unit judges that the battery cabinet has a fire condition.
Furthermore, a first preset smoke concentration Q1 and a second preset smoke concentration Q2 are arranged in the central control unit, when the central control unit judges that fire exists in the energy storage container according to the real-time temperature in the energy storage container, the smoke sensation detection device detects the real-time smoke concentration Qs in the energy storage container, the central control unit compares the real-time smoke concentration Qs in the energy storage container with the first preset smoke concentration Q1 and the second preset smoke concentration Q2,
when Qs is less than Q1, the central control unit judges that the real-time smoke concentration in the energy storage container is lower than a first preset smoke concentration, and the central control unit judges that a low-grade fire exists in the energy storage container;
when the Q1 is not less than or equal to the Qs and is less than Q2, the central control unit judges that the real-time smoke concentration in the energy storage container is between a first preset smoke concentration and a second preset smoke concentration, and the central control unit judges that a medium-grade fire exists in the energy storage container;
when Qs is larger than or equal to Q2, the central control unit judges that the real-time smoke concentration in the energy storage container is higher than the second preset smoke concentration, and the central control unit judges that a high-level fire exists in the energy storage container.
Furthermore, the central control unit is internally provided with position information of each battery cabinet, when the central control unit judges that low-level fire exists in the energy storage container, the central control unit locks each battery cabinet with fire and cuts off the connection between each battery cabinet with fire and other battery cabinets, the central control unit controls each telescopic fire-fighting spray head corresponding to each battery cabinet with fire to start to extinguish the fire of each battery cabinet with fire, and the central control unit controls the alarm device to alarm the fire.
Furthermore, the central control unit is internally provided with position information of each battery cabinet, when the central control unit judges that a middle-level fire exists in the energy storage container, the central control unit locks each battery cabinet with the fire and each abnormal battery cabinet and cuts off the connection between all the battery cabinets in the battery units, the central control unit controls each telescopic fire-fighting spray head corresponding to each battery cabinet with the fire and each abnormal battery cabinet to start so as to extinguish the fire of each battery cabinet with the fire, and the central control unit controls the alarm device to alarm the fire.
Further, when the central control unit judges that the high-level fire exists in the energy storage container, the central control unit controls all telescopic fire-fighting spray heads in the fire-fighting unit to start to integrally extinguish the fire in the energy storage container, and controls the alarm device to alarm the fire; and when the central control unit judges that the real-time temperature is higher than a second preset temperature, the central control unit directly judges that the high-level fire exists in the energy storage container.
Further, the number N of battery cabinets in the energy storage container is set in the central control unit, when there is no battery cabinet in the energy storage container in the central control unit and the real-time temperature in the energy storage container is between the first preset temperature and the second preset temperature, the central control unit detects the number M of abnormal battery cabinets in the energy storage container, adjusts the second preset temperature to T2 ″ by the central control unit, where T2 ═ T2' × (N-M) N, and the central control unit repeats the comparison and determination operation between the real-time temperature and the first preset temperature as well as the second preset temperature to determine whether there is a fire in the energy storage container; when M is equal to N, the central control unit judges that a battery cabinet fault exists in the energy storage container, and the energy storage container is overhauled; and the central control unit compares the adjusted second preset temperature with the first preset temperature, when the temperature T2 is less than or equal to T1, the central control unit judges that the adjusted second preset temperature is lower than the first preset temperature, and the central control unit judges that a battery cabinet fault exists in the energy storage container for maintenance.
Compared with the prior art, the invention has the advantages that the fire condition state in the energy storage container can be timely found by setting the standard temperature range in the central control unit and comparing the standard temperature range with the real-time temperature in the energy storage container detected by the temperature detection device, when the fire condition state in the energy storage container cannot be determined through the temperature, the real-time current of each battery cabinet detected by the battery detection device is used for judging whether the fire condition exists in the energy storage container, the judgment can be carried out aiming at each battery cabinet, the detection range is further reduced, the fire condition can be more timely found, meanwhile, the energy storage container is put out a fire according to the fire condition grade judged by the smoke concentration by arranging the plurality of telescopic fire nozzles in the fire control unit, when the fire condition is small, the fire is timely put out in place, and the energy loss is guaranteed, when the fire is great, the coverability is comprehensive to put out a fire, has further ensured the security of energy storage container.
Particularly, the temperature condition in the energy storage container is divided into three sections by arranging a first preset temperature and a second preset temperature in the central control unit, when the real-time temperature is lower than the first preset temperature, the temperature condition in the energy storage container is normal, so that the fire condition is judged to be absent, when the real-time temperature is higher than the second preset temperature, the temperature in the energy storage container is overhigh, a fire position is present, when the real-time temperature is at the first preset temperature and the second preset temperature, because the battery cabinets can generate heat, an air conditioning device in the energy storage container can adjust the temperature, and certain temperature fluctuation is generated, so that the central control unit judges according to the internal current of each battery cabinet to ensure the judgment accuracy of the fire protection system, and can most directly and most timely reflect the fire condition state in the energy storage container through the detection of the temperature, the safety of the energy storage container is guaranteed.
Further, when the central control unit judges that the real-time temperature in the energy storage container is between the first preset temperature and the second preset temperature, the real-time current in the battery cabinets is detected aiming at each battery cabinet, so that the fire condition can be timely found and the specific position of the fire condition can be timely found, meanwhile, the range of the standard current is set as a comparison standard, misjudgment caused by current fluctuation in the batteries is avoided, and the normal operation of the fire protection system is guaranteed.
Further, when the central control unit judges that the real-time current in the battery cabinet is not in the standard range, the central control unit compares the real-time current with the standard current, when the real-time current is lower than the standard current, the central control unit adjusts the second preset temperature according to the difference value of the real-time current and the standard current so as to guarantee the judgment accuracy of the fire protection system, and when the real-time current is higher than the standard current, the central control unit detects the voltage fluctuation of the battery cabinet so as to deal with the change of the battery in the battery cabinet caused by the temperature change caused by fire, so that the detection and judgment accuracy of the fire protection system is further improved, and meanwhile, the safety of the energy storage container is guaranteed.
Particularly, when the central control unit judges that the real-time current of the battery cabinet exceeds the standard current range, the central control unit detects the voltage fluctuation value of the battery cabinet, judges the battery to be in an abnormal state or a fire state, and can perform fire fighting pertinently by judging the state of each battery cabinet, so that the battery cabinet without the abnormal state or the fire state can be protected to be reused, further energy is saved, and the normal operation of the fire fighting system is ensured.
Further, it is right the condition of a fire state in the energy storage container and the state of each battery cabinet judge the completion back, through real-time smog concentration in the detection energy storage container of cigarette sense detection device carries out the rating to the condition of a fire in the energy storage container, can carry out the pertinence to the condition of a fire of different grades and put out a fire, and the condition of a fire state in the control energy storage container that can be timely effectual has ensured the security of energy storage container.
Further, well accuse unit judges when the condition of a fire in the energy storage container is low-level condition of a fire, cut off the battery cabinet that respectively has the condition of a fire with other battery cabinets, prevent stretching of the condition of a fire, through flexible fire control shower nozzle puts out a fire to the battery cabinet that respectively has the condition of a fire, and flexible fire control shower nozzle can be comprehensive from top to bottom through flexible removal to the battery cabinet that has the condition of a fire to and put out a fire in the internal gap, further improved the efficiency of putting out a fire, the battery cabinet that can protect normal condition again simultaneously can not receive the influence of fire extinguishing agent and cause the damage, has practiced thrift usable resource, has also ensured the security of energy storage container.
Further, well accuse unit judges when the condition of a fire in the energy storage container is the medium-grade condition of a fire, well accuse unit will have the battery cabinet and the unusual battery cabinet of condition of a fire and all cut off, simultaneously through each battery cabinet and the unusual battery cabinet of the condition of a fire are put out a fire to the battery cabinet that has the condition of a fire to flexible fire sprinkler, have further ensured the control to the condition of a fire, avoid the energy storage container because the lapse of time with put out a fire inadequately and take place unfavorable consequences such as explosion.
Further, well accuse unit judges when the condition of a fire in the energy storage container is advanced condition of a fire, it is comparatively serious to show the condition of a fire in the energy storage container, and well accuse unit will open whole flexible fire control shower nozzles, right carry out whole putting out a fire in the energy storage container, timely reduction eliminates the condition of a fire, ensures the safety of energy storage container and surrounding environment.
Especially, when well accuse unit there is not the battery cabinet of condition of a fire in the energy storage container, and the real-time temperature in the energy storage container when first presetting temperature and second preset temperature, there may be the combustion phenomenon of firing in other parts of energy storage container inside, also can have the phenomenon that the battery cabinet operation is normal but appears tentatively generating heat, through do the low adjustment to the second preset temperature, improve the detection range who judges, can make the judgement discovery of condition of a fire more timely, further improved the security in the energy storage container.
Drawings
Fig. 1 is a schematic structural view of a fire fighting system for energy storage containers according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the 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.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those skilled in the art according to specific situations.
Referring to fig. 1, which is a schematic structural diagram of a fire fighting system for an energy storage container according to the present invention, the present invention discloses a fire fighting system for an energy storage container, comprising,
a battery unit 1 disposed inside the energy storage container 2; a plurality of battery cabinets 101 are arranged in the battery unit 1 and used for storing electric energy;
a fire fighting unit 3 provided at an upper portion of the battery unit 1 for extinguishing a fire of the battery unit 1; a plurality of telescopic fire-fighting nozzles 301 are arranged in the fire-fighting unit 3, each telescopic fire-fighting nozzle 301 corresponds to each battery cabinet 101, and the telescopic fire-fighting nozzles 301 can spray fire extinguishing agents at different positions for each battery cabinet 101; the upper part of the fire-fighting unit 3 is provided with an alarm device 302 for alarming the fire in the energy storage container 2;
a detection unit 4 provided on the side of the fire fighting unit 3; a temperature detection device 401 is arranged in the detection unit 4, and the temperature detection device 401 is used for detecting the real-time temperature inside the energy storage container 2; a smoke detection device 402 is arranged in the detection unit 4, and the smoke detection device 402 is used for detecting the smoke concentration in the energy storage container 2; a battery detection device 403 is further disposed in the detection unit 4, the battery detection device 403 is respectively connected to each battery cabinet 101 of the battery unit 1, and the battery detection device 403 can detect current and voltage inside each battery cabinet 101;
the central control unit is respectively connected with the battery unit 1, the fire fighting unit 3 and the detection unit 4 and is used for controlling the working state of each component in each unit; a standard temperature range is arranged in the central control unit, and the central control unit can judge whether a fire exists according to the real-time temperature detected by the temperature detection device 401; a standard current range is arranged in the central control unit, and the central control unit judges whether a fire exists in each battery cabinet 101 according to the real-time current of each battery cabinet 101 detected by the battery detection device 403; the central control unit can adjust the standard temperature range according to the standard current range and the real-time current of each battery cabinet 101; the central control unit can determine the state of each battery cabinet 101 according to the voltage fluctuation inside each battery cabinet 101 detected by the battery detection device 403; the central control unit can adjust the standard temperature range according to the state of each battery cabinet 101; a standard smoke concentration range is arranged in the central control unit, and the central control unit can judge the fire level according to the real-time smoke concentration detected by the smoke sensation detection device 402; the central control unit can control the working state of each telescopic fire-fighting nozzle 301 in the fire-fighting unit 3 according to the fire condition grade.
Through setting a standard temperature range in the central control unit and comparing the standard temperature range with the real-time temperature in the energy storage container 2 detected by the temperature detection device 401, the fire state in the energy storage container 2 can be timely found, when the fire state in the energy storage container 2 cannot be determined through the temperature, the real-time current of each battery cabinet 101 detected by the battery detection device 403 is used for judging whether the fire exists in the energy storage container 2, the fire can be judged aiming at each battery cabinet 101, the detection range is further reduced, the fire can be timely found, meanwhile, through setting a plurality of telescopic fire nozzles 301 in the fire unit 3, the fire is extinguished aiming at the fire grade judged according to the smoke concentration, when the fire is small, the fire is timely extinguished aiming at the position, the energy loss is guaranteed, and when the fire is large, the coverage is comprehensive to put out a fire, has further ensured the security of energy storage container 2.
Specifically, a first preset temperature T1 and a second preset temperature T2 are arranged in the central control unit, wherein T1 is less than T2, the temperature detection device 401 detects a real-time temperature Ts in the energy storage container 2, the central control unit compares the real-time temperature Ts with the first preset temperature T1 and the second preset temperature T2 respectively,
when Ts is less than or equal to T1, the central control unit judges that the real-time temperature is lower than a first preset temperature and judges that no fire exists in the energy storage container 2;
when T1 is larger than Ts and is not larger than T2, the central control unit judges that the real-time temperature is between a first preset temperature and a second preset temperature, judges that fire hidden danger exists in the energy storage container 2, and judges whether fire exists according to the internal current of each battery cabinet 101 to determine whether fire exists;
and when Ts is larger than T2, the central control unit judges that the real-time temperature is higher than a second preset temperature, and judges that a fire exists in the energy storage container 2.
The temperature condition in the energy storage container 2 is divided into three sections by setting a first preset temperature and a second preset temperature in the central control unit, when the real-time temperature is lower than the first preset temperature, the temperature condition in the energy storage container 2 is normal, so that the fire condition does not exist, when the real-time temperature is higher than the second preset temperature, the temperature in the energy storage container 2 is overhigh, a fire position exists, when the real-time temperature is at the first preset temperature and the second preset temperature, because the battery cabinets 101 can generate heat, an air conditioning device in the energy storage container 2 can adjust the temperature, and certain temperature fluctuation is generated, so that the central control unit judges the internal current of each battery cabinet 101 according to guarantee the judgment accuracy of the fire protection system, and can most directly reflect the fire condition state in the energy storage container 2 through the detection of the temperature, the safety of the energy storage container 2 is guaranteed.
Specifically, a standard current Ab and a standard current difference Δ Ab inside the battery cabinets 101 are provided in the central control unit, when the central control unit determines that the real-time temperature inside the energy storage container 2 is between a first preset temperature and a second preset temperature, the battery detection device 403 detects the real-time current inside each battery cabinet 101, the central control unit calculates the real-time current difference Δ As inside the battery cabinet 101 according to the real-time current As inside any one battery cabinet 101 and the standard current Ab, Δ As |, Ab-As |, and the central control unit compares the real-time current difference Δ As inside the battery cabinet 101 with the standard current difference Δ Ab,
when the delta As is less than or equal to the delta Ab, the central control unit judges that the real-time current in the battery cabinet 101 is in a standard range, and the central control unit judges that the battery cabinet 101 has no fire;
when Δ As > Δ Ab, the central control unit determines that the real-time current inside the battery cabinet 101 is not within the standard range, and the central control unit compares the real-time current As inside the battery cabinet 101 with the standard current Ab to determine whether a fire exists in the battery cabinet 101.
When the central control unit judges that the real-time temperature in the energy storage container 2 is between the first preset temperature and the second preset temperature, the real-time current in the battery cabinets 101 is detected aiming at the battery cabinets 101, so that the fire can be timely found and the specific positions of the fire can be timely found, meanwhile, the range of the standard current is set as a comparison standard, the misjudgment caused by the fluctuation of the current in the batteries is avoided, and the normal operation of the fire-fighting system is ensured.
Specifically, when the central control unit determines that the real-time current in the battery cabinet 101 is not within the standard range, the central control unit compares the real-time current As in the battery cabinet 101 with the standard current Ab,
when As is less than Ab, the central control unit judges that the real-time current in the tank cabinet is lower than the standard current, adjusts the second preset temperature to T2', T2 ═ T2 × (1-delta As/Ab), and repeats the comparison and judgment operation of the real-time temperature, the first preset temperature and the second preset temperature so As to determine whether a fire exists in the energy storage container 2;
when As is larger than Ab, the central control unit judges that the real-time current in the battery cabinet is higher than the standard current, and the central control unit judges according to the voltage fluctuation value in the battery cabinet 101 to determine whether a fire exists in the energy storage container 2.
When the central control unit judges that the real-time current in the battery cabinet 101 is not in the standard range, the central control unit compares the real-time current with the standard current, when the real-time current is lower than the standard current, the central control unit adjusts the second preset temperature according to the difference value of the real-time current and the standard current so as to guarantee the judgment accuracy of the fire protection system, when the real-time current is higher than the standard current, the central control unit detects the voltage fluctuation of the battery cabinet 101 so as to deal with the change of the battery in the battery cabinet 101 caused by the temperature change caused by the fire, the detection and judgment accuracy of the fire protection system is further improved, and meanwhile, the safety of the energy storage container 2 is guaranteed.
Specifically, the central control unit is provided with a maximum voltage fluctuation value Vb, when the central control unit determines that the real-time current inside the battery cabinet is higher than the standard current, the battery detection device 403 detects the real-time voltage fluctuation value Vs of each battery cabinet 101, the central control unit compares the real-time voltage fluctuation value Vs with the maximum voltage fluctuation value Vb,
when Vs is less than or equal to Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet 101 does not exceed the maximum voltage fluctuation value, and the central control unit judges the battery cabinet 101 as an abnormal battery cabinet 101;
when Vs is larger than Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet 101 exceeds the maximum voltage fluctuation value, and the central control unit judges that the battery cabinet 101 has a fire.
When the central control unit judges that the real-time current of the battery cabinet 101 exceeds the standard current range, the central control unit detects the voltage fluctuation value of the battery cabinet 101, judges the battery to be in an abnormal state or a fire state, and can perform fire fighting pertinently by judging the state of each battery cabinet 101, so that the battery cabinets 101 without the abnormal state or the fire state can be protected to be reused, further energy is saved, and the normal operation of the fire fighting system is ensured.
Specifically, a first preset smoke concentration Q1 and a second preset smoke concentration Q2 are arranged in the central control unit, when the central control unit determines that fire exists in the energy storage container 2 according to the real-time temperature in the energy storage container 2, the smoke detection device 402 detects the real-time smoke concentration Qs in the energy storage container 2, the central control unit compares the real-time smoke concentration Qs in the energy storage container 2 with the first preset smoke concentration Q1 and the second preset smoke concentration Q2,
when Qs is less than Q1, the central control unit judges that the real-time smoke concentration in the energy storage container 2 is lower than a first preset smoke concentration, and the central control unit judges that a low-level fire exists in the energy storage container 2;
when the Q1 is not less than or equal to the Qs and is less than Q2, the central control unit judges that the real-time smoke concentration in the energy storage container 2 is between a first preset smoke concentration and a second preset smoke concentration, and the central control unit judges that a medium-grade fire exists in the energy storage container 2;
when Qs is larger than or equal to Q2, the central control unit judges that the real-time smoke concentration in the energy storage container 2 is higher than the second preset smoke concentration, and the central control unit judges that a high-level fire exists in the energy storage container 2.
It is right after the condition of a fire state in the energy storage container 2 and the state judgement of each battery cabinet 101 are accomplished, through real-time smog concentration in the energy storage container 2 is detected to smoke detector 402, rates the condition of a fire in the energy storage container 2, can carry out the pertinence to the condition of a fire of different grades and put out a fire, and the condition of a fire state in the control energy storage container 2 that can be timely effectual has ensured energy storage container 2's security.
Specifically, the central control unit is provided with position information of each battery cabinet 101, and when the central control unit determines that a low-level fire exists in the energy storage container 2, the central control unit locks each battery cabinet 101 with the fire and cuts off the connection between each battery cabinet 101 with the fire and other battery cabinets 101, the central control unit controls each telescopic fire nozzle 301 corresponding to each battery cabinet 101 with the fire to start to extinguish the fire of each battery cabinet 101 with the fire, and the central control unit controls the alarm device 302 to alarm the fire.
Well accuse unit judges when the condition of a fire in the energy storage container 2 is low-level condition of a fire, to each battery cabinet 101 that has the condition of a fire cut off with other battery cabinets 101, prevent stretching of the condition of a fire, through flexible fire control shower nozzle 301 is put out a fire to each battery cabinet 101 that has the condition of a fire, and flexible fire control shower nozzle 301 can be comprehensive from top to bottom to the battery cabinet 101 that has the condition of a fire through flexible removal to and put out a fire in the inside gap, further improved the efficiency of putting out a fire, can not receive the influence of fire extinguishing agent and cause the damage simultaneously can protect normal state's battery cabinet 101 again, practiced thrift usable resource, also ensured energy storage container 2's security.
Specifically, the central control unit is internally provided with position information of each battery cabinet 101, when the central control unit determines that a middle-level fire exists in the energy storage container 2, the central control unit locks each battery cabinet 101 with the fire and each abnormal battery cabinet 101, cuts off the connection between all the battery cabinets 101 in the battery unit 1, controls each battery cabinet 101 with the fire and each telescopic fire nozzle 301 corresponding to each abnormal battery cabinet 101 to start, extinguishes each battery cabinet 101 with the fire, and controls the alarm device 302 to alarm the fire.
The well accuse unit judges when the condition of a fire in the energy storage container 2 is the medium-grade condition of a fire, well accuse unit will have the battery cabinet 101 of the condition of a fire and all cut off with unusual battery cabinet 101, simultaneously through each battery is put out a fire to the battery cabinet 101 that has the condition of a fire and unusual battery cabinet 101 to flexible fire sprinkler 301, has further ensured the control to the condition of a fire, avoids energy storage container 2 because the lapse of time and the not abundant bad consequences such as explosion that take place of putting out a fire.
Specifically, when the central control unit determines that a high-level fire exists in the energy storage container 2, the central control unit controls all the telescopic fire-fighting spray nozzles 301 in the fire-fighting unit 3 to start, so as to integrally extinguish the fire in the energy storage container 2, and controls the alarm device 302 to alarm the fire; when the central control unit judges that the real-time temperature is higher than a second preset temperature, the central control unit directly judges that a high-level fire exists in the energy storage container 2.
Well accuse unit judges when the condition of a fire in the energy storage container 2 is senior condition of a fire, it is comparatively serious to show the condition of a fire in the energy storage container 2, and well accuse unit will open whole flexible fire control shower nozzle 301, it is right carry out whole putting out a fire in the energy storage container 2, timely reduction eliminates the condition of a fire, ensures the safety of energy storage container 2 and surrounding environment.
Specifically, the number N of the battery cabinets 101 in the energy storage container 2 is set in the central control unit, when there is no battery cabinet 101 in the energy storage container 2 in the central control unit and the real-time temperature in the energy storage container 2 is between a first preset temperature and a second preset temperature, the central control unit detects the number M of the abnormal battery cabinets 101 in the energy storage container 2, adjusts the second preset temperature to T2 ″, where T2 ″ -T2 × (N-M) N, and repeats the comparison determination operation between the real-time temperature and the first preset temperature and the second preset temperature to determine whether there is a fire in the energy storage container 2; when M is equal to N, the central control unit judges that a battery cabinet 101 fault exists in the energy storage container 2, and then the maintenance is carried out; and the central control unit compares the adjusted second preset temperature with the first preset temperature, when the temperature T2 is less than or equal to T1, the central control unit judges that the adjusted second preset temperature is lower than the first preset temperature, and the central control unit judges that the battery cabinet 101 in the energy storage container 2 has a fault and overhauls the battery cabinet.
Work as well accuse unit do not have the battery cabinet 101 of condition of a fire in the energy storage container 2, and the real-time temperature in the energy storage container 2 when presetting between the temperature at first preset temperature and second, there may be the combustion phenomenon of firing in other parts of the inside of energy storage container 2, also can have the phenomenon that battery cabinet 101 operation is normal but the preliminary heat of emergence, do low adjustment through presetting the temperature to the second, improve the detection range who judges, can make the judgement discovery of condition of a fire more timely, further improved the security in the energy storage container 2.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can be within the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. 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 (10)
1. A fire fighting system for an energy storage container, comprising,
a battery unit disposed inside the energy storage container; a plurality of battery cabinets are arranged in the battery units and used for storing electric energy;
the fire fighting unit is arranged at the upper part of the battery unit and is used for extinguishing the fire of the battery unit; a plurality of telescopic fire-fighting nozzles are arranged in the fire-fighting unit, each telescopic fire-fighting nozzle corresponds to each battery cabinet, and the telescopic fire-fighting nozzles can spray fire extinguishing agents at different positions for each battery cabinet; the upper part of the fire-fighting unit is provided with an alarm device for alarming the fire in the energy storage container;
a detection unit disposed at one side of the fire fighting unit; a temperature detection device is arranged in the detection unit and used for detecting the real-time temperature inside the energy storage container; a smoke detection device is arranged in the detection unit and used for detecting the smoke concentration in the energy storage container; the detection unit is internally provided with a battery detection device, the battery detection device is respectively connected with each battery cabinet of the battery unit, and the battery detection device can detect the current and the voltage in each battery cabinet;
the central control unit is respectively connected with the battery unit, the fire fighting unit and the detection unit and is used for controlling the working state of each component in each unit; a standard temperature range is arranged in the central control unit, and the central control unit can judge whether a fire exists according to the real-time temperature detected by the temperature detection device; a standard current range is arranged in the central control unit, and the central control unit judges whether a fire exists in each battery cabinet according to the real-time current of each battery cabinet detected by the battery detection device; the central control unit can adjust the standard temperature range according to the standard current range and the real-time current of each battery cabinet; the central control unit can judge the state of each battery cabinet according to the voltage fluctuation in each battery cabinet detected by the battery detection device; the central control unit can adjust the standard temperature range according to the state of each battery cabinet; a standard smoke concentration range is arranged in the central control unit, and the central control unit can judge the fire level according to the real-time smoke concentration detected by the smoke sensation detection device; the central control unit can control the working state of each telescopic fire-fighting nozzle in the fire-fighting unit according to the fire condition grade.
2. A fire fighting system for energy storage containers as defined in claim 1, wherein the central control unit is provided with a first preset temperature T1 and a second preset temperature T2, wherein T1 < T2, the temperature detection device detects a real-time temperature Ts in the energy storage container, the central control unit compares the real-time temperature Ts with the first preset temperature T1 and the second preset temperature T2,
when Ts is less than or equal to T1, the central control unit judges that the real-time temperature is lower than a first preset temperature and judges that no fire exists in the energy storage container;
when T1 is greater than Ts and is not greater than T2, the central control unit judges that the real-time temperature is between a first preset temperature and a second preset temperature, and judges that the fire hazard exists in the energy storage container, and the central control unit judges whether the fire exists according to the internal current of each battery cabinet to determine whether the fire exists;
and when Ts is larger than T2, the central control unit judges that the real-time temperature is higher than a second preset temperature, and judges that a fire condition exists in the energy storage container.
3. The fire fighting system for energy storage containers As claimed in claim 2, wherein the central control unit is provided with a standard current Ab and a standard current difference Δ Ab inside the battery cabinets, when the central control unit determines that the real-time temperature inside the energy storage container is between a first preset temperature and a second preset temperature, the battery detection device detects the real-time current inside each battery cabinet, the central control unit calculates the real-time current difference Δ As inside any battery cabinet according to the real-time current As inside the battery cabinet and the standard current Ab, Δ As ═ Ab-As |, and compares the real-time current difference Δ As inside the battery cabinet with the standard current difference Δ Ab,
when the delta As is less than or equal to the delta Ab, the central control unit judges that the real-time current in the battery cabinet is in a standard range, and the central control unit judges that the battery cabinet does not have a fire;
when the delta As is larger than the delta Ab, the central control unit judges that the real-time current in the battery cabinet is not in the standard range, and the central control unit compares the real-time current As in the battery cabinet with the standard current Ab to determine whether the battery cabinet has a fire or not.
4. The fire fighting system for energy storage container As recited in claim 3, wherein when the central control unit determines that the real-time current inside the battery cabinet is not within the standard range, the central control unit compares the real-time current As inside the battery cabinet with the standard current Ab,
when As is less than Ab, the central control unit judges that the real-time current in the tank cabinet is lower than the standard current, adjusts the second preset temperature to T2', T2 ═ T2 × (1-delta As/Ab), and repeats the comparison and judgment operation of the real-time temperature, the first preset temperature and the second preset temperature so As to determine whether a fire exists in the energy storage container;
when As is larger than Ab, the central control unit judges that the real-time current in the battery cabinet is higher than the standard current, and the central control unit judges according to the voltage fluctuation value in the battery cabinet to determine whether a fire exists in the energy storage container.
5. The fire fighting system for the energy storage container as recited in claim 4, wherein a maximum voltage fluctuation value Vb is provided in the central control unit, the battery detection device detects a real-time voltage fluctuation value Vs of each of the battery cabinets when the central control unit determines that the real-time current inside the battery cabinet is higher than a standard current, the central control unit compares the real-time voltage fluctuation value Vs with the maximum voltage fluctuation value Vb,
when Vs is smaller than or equal to Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet does not exceed the maximum voltage fluctuation value, and the central control unit judges the battery cabinet as an abnormal battery cabinet;
when Vs is larger than Vb, the central control unit judges that the real-time voltage fluctuation value of the battery cabinet exceeds the maximum voltage fluctuation value, and the central control unit judges that the battery cabinet has a fire.
6. The fire fighting system for the energy storage container as recited in claim 5, wherein a first preset smoke concentration Q1 and a second preset smoke concentration Q2 are provided in the central control unit, when the central control unit determines that a fire occurs in the energy storage container according to the real-time temperature in the energy storage container, the smoke detection device detects the real-time smoke concentration Qs in the energy storage container, the central control unit compares the real-time smoke concentration Qs in the energy storage container with the first preset smoke concentration Q1 and the second preset smoke concentration Q2,
when Qs is less than Q1, the central control unit judges that the real-time smoke concentration in the energy storage container is lower than a first preset smoke concentration, and the central control unit judges that a low-grade fire exists in the energy storage container;
when the Q1 is not less than or equal to the Qs and is less than Q2, the central control unit judges that the real-time smoke concentration in the energy storage container is between a first preset smoke concentration and a second preset smoke concentration, and the central control unit judges that a medium-grade fire exists in the energy storage container;
when the Qs is larger than or equal to Q2, the central control unit judges that the real-time smoke concentration in the energy storage container is higher than a second preset smoke concentration, and the central control unit judges that a high-level fire exists in the energy storage container.
7. The fire fighting system for the energy storage container as claimed in claim 6, wherein the central control unit is provided with position information of each battery cabinet, when the central control unit determines that a low-level fire exists in the energy storage container, the central control unit locks each battery cabinet with the fire and cuts off the connection between each battery cabinet with the fire and other battery cabinets, the central control unit controls each telescopic fire nozzle corresponding to each battery cabinet with the fire to start to extinguish the fire of each battery cabinet with the fire, and the central control unit controls the alarm device to alarm the fire.
8. The fire fighting system for the energy storage container as claimed in claim 6, wherein the central control unit is provided with position information of each battery cabinet, when the central control unit determines that a middle-level fire exists in the energy storage container, the central control unit locks each battery cabinet with a fire and each abnormal battery cabinet and cuts off the connection between all the battery cabinets in the battery units, the central control unit controls each battery cabinet with a fire and each telescopic fire nozzle corresponding to each abnormal battery cabinet to start to extinguish the fire of each battery cabinet with a fire, and the central control unit controls the alarm device to alarm the fire.
9. The fire fighting system for the energy storage container as recited in claim 6, wherein when the central control unit determines that a high-level fire exists in the energy storage container, the central control unit controls all the retractable fire sprinklers in the fire fighting unit to start up to extinguish the fire in the energy storage container as a whole, and controls the alarm device to alarm the fire; and when the central control unit judges that the real-time temperature is higher than a second preset temperature, the central control unit directly judges that the high-level fire exists in the energy storage container.
10. The fire fighting system for the energy storage container as claimed in claim 5, wherein the central control unit is provided with a number N of battery cabinets in the energy storage container, when the central control unit has no battery cabinet in the energy storage container in which a fire is present and a real-time temperature in the energy storage container is between a first preset temperature and a second preset temperature, the central control unit detects an abnormal number M of battery cabinets in the energy storage container, the central control unit adjusts the second preset temperature to T2 ″, T2 ″ -T2' × (N-M) N, and the central control unit repeats the comparison determination operation of the real-time temperature with the first preset temperature and the second preset temperature to determine whether a fire is present in the energy storage container; when M is equal to N, the central control unit judges that a battery cabinet fault exists in the energy storage container, and the energy storage container is overhauled; and the central control unit compares the adjusted second preset temperature with the first preset temperature, when the temperature T2 is less than or equal to T1, the central control unit judges that the adjusted second preset temperature is lower than the first preset temperature, and the central control unit judges that a battery cabinet fault exists in the energy storage container for maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127880.3A CN114712749A (en) | 2022-02-11 | 2022-02-11 | Fire-fighting system for energy storage container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127880.3A CN114712749A (en) | 2022-02-11 | 2022-02-11 | Fire-fighting system for energy storage container |
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| Publication Number | Publication Date |
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| CN114712749A true CN114712749A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210127880.3A Withdrawn CN114712749A (en) | 2022-02-11 | 2022-02-11 | Fire-fighting system for energy storage container |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487446A (en) * | 2022-08-31 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | Fire protection energy storage system and fire protection method of energy storage system |
-
2022
- 2022-02-11 CN CN202210127880.3A patent/CN114712749A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487446A (en) * | 2022-08-31 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | Fire protection energy storage system and fire protection method of energy storage system |
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Application publication date: 20220708 |