KR20200087956A - The outdoor container type ess with the reinforced fire prevention functioin - Google Patents

The outdoor container type ess with the reinforced fire prevention functioin Download PDF

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KR20200087956A
KR20200087956A KR1020190004345A KR20190004345A KR20200087956A KR 20200087956 A KR20200087956 A KR 20200087956A KR 1020190004345 A KR1020190004345 A KR 1020190004345A KR 20190004345 A KR20190004345 A KR 20190004345A KR 20200087956 A KR20200087956 A KR 20200087956A
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fire
container
ess
fire extinguishing
smoke
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KR1020190004345A
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Korean (ko)
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장영철
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주식회사 플랜티
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H01M2/1094—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The present invention relates to an external container-type energy storage system (ESS) with an enhanced function of preventing the spread of fire. When an electrical fire breaks out due to a violent explosion of an ESS that utilizes a secondary battery such as a lithium-ion battery, the external container-type ESS of the present invention can slow down the fire from rapidly spreading to surrounding areas, such as a power grid connected to the ESS, and can further buy time until an active fire suppression becomes available. In addition, in order to prevent the fire from spreading to the surrounding areas, by means of a smoke detection sensor for smoke behaviors on the ceiling surface of a container and a temperature detection sensor inside the container that are installed with respect to the ESS mounted inside an external container, the external container-type ESS sprays a fire extinguishing material for suppressing electrical fires toward an external container and the surrounding areas.

Description

화재확산 방지기능이 강화된 외장 컨테이너형 에너지저장장치시스템 {THE OUTDOOR CONTAINER TYPE ESS WITH THE REINFORCED FIRE PREVENTION FUNCTIOIN}External container type energy storage system with enhanced fire diffusion prevention function {THE OUTDOOR CONTAINER TYPE ESS WITH THE REINFORCED FIRE PREVENTION FUNCTIOIN}

에너지 저장(영어: Energy storage)은 장치 혹은 물리적 매체를 이용하여 에너지를 나중에 사용하기 위해 저장하는 것을 말한다. 이에 쓰이는 장치 전체를 에너지 저장 시스템(Energy Storage System, ESS)라고 한다. 일반 가정에서 사용하는 건전지나 전자제품에 사용하는 소형 배터리도 전기에너지를 다른에너지 형태로 변환하여 저장할 수 있지만 이런 소규모 전력저장장치를 ESS라고 말하지는 않고, 일반적으로 수백 kWH 이상의 전력을 저장하는 단독 시스템을 ESS라고 부른다.Energy storage (English: Energy storage) refers to the storage of energy for later use by using a device or a physical medium. The entire device used for this is called an energy storage system (ESS). Even small batteries used in general household batteries or electronic products can convert and store electric energy into other forms of energy, but these small power storage devices are not called ESSs, but are usually a single system that stores more than hundreds of kWH. Is called ESS.

ESS는 전력계통에서 발전, 송배전, 수용가에 설치되어 운영이 가능하며, 주파수 조정(Frequency Regulation), 신재생발전기 출력 안정화, 첨두부하 저감(Peak Shaving), 부하평준화(Load Leveling), 비상전원 등의 기능으로 사용된다.The ESS can be installed and operated in power generation, transmission and distribution, and customers in the power system, such as frequency regulation, stabilizing the output of new and renewable generators, peak shaving, load leveling, emergency power supply, etc. Used as a function.

에너지 저장은 저장방식에 따라 크게 물리적 에너지저장과 화학적 에너지저장으로 구분할 수 있다. 대표적인 물리적 에너지저장으로는 양수발전과 압축공기저장, 플라이휠 등을 들 수 있으며, 화학적 에너지저장으로는 리튬이온배터리, 납축전지, 플로우배터리, NaS 전지 등이 있다. 배터리 형식의 ESS를 BESS(Battery Energy Storage System) 이라고 하며, 흔히 ESS라고 하면 BESS를 말한다.Energy storage can be largely divided into physical energy storage and chemical energy storage according to the storage method. Typical physical energy storage includes pumping, compressed air storage, and flywheel. Chemical energy storage includes lithium ion batteries, lead acid batteries, flow batteries, and NaS batteries. The battery type ESS is called a BESS (Battery Energy Storage System), and the ESS is often referred to as a BESS.

본 실시예에서는 화학적 에너지저장 중 리튬이온배터리를 주로 일컫는 BESS를 대상으로 하고 있으며, 외부환경에 설치하는 컨테이너 형태의 구조물내에 배터리 스택과 제어장치, 온도를 조절하는 공기조화장치, 전력계통을 조합한 외장 컨테이너형 에너지저장장치의 활용이 신재생에너지 연계형을 필두로 적용되고 있다. In this embodiment, BESS, which refers to a lithium-ion battery during chemical energy storage, is mainly targeted, and the battery stack and the control device, an air conditioning device that controls temperature, and a power system are combined in a container-type structure installed in an external environment. Utilization of external container-type energy storage devices is being applied, starting with renewable energy-connected type.

외장 컨테이너형 에너지저장장치의 경우, 배터리 용량에 따라 모듈화가 가능하고, 외부환경에 쉽게 설치가 가능하며, 온도제어도 건물내장보다는 간편한 여러 장점이 많아 널리 보급확산되고 있다.In the case of an external container-type energy storage device, it can be modularized according to the battery capacity, can be easily installed in an external environment, and temperature control is also widely spread and spread because it has many advantages that are more convenient than the interior of a building.

화학적 에너지 저장장치의 경우, 주로 사용되는 리튬이온 배터리는 충·방전을 반복하다보면 덴드라이트(금속 표면 어느 한 부분에 비정상적으로 성장하는 나뭇가지 모양의 결정)가 발생할 수 있고, 외부 온도와 환경에 의해 셀 내 분리막이 손상될 수 있다. 이는 모두 내부 단락을 일으켜 열폭주를 발생시키고 화재로 이어질 수 있다. In the case of a chemical energy storage device, a lithium ion battery that is mainly used may cause dendrites (a crystal of a tree branch that grows abnormally on any part of a metal surface) after repeated charging and discharging. This may damage the separator in the cell. This can all cause internal short circuits, which can cause thermal runaway and lead to fire.

이러한 리튬이온 배터리 스택에서의 화재는 일반적인 화재와는 달리, 전기화재이면서 동시에 화학적인 반응이 격렬하게 일어나서 빠른 시간내에 맹렬히 진행되는 화재특성을 가지고 있다. 최근 신재생에너지와 연계하여 신재생에너지의 간헐성을 극복하고, 전력망내 첨두부하 저감을 위해 BESS의 보급확산이 가속되고 있는데, 설치운영 장소가 사람이 상주하는 건물, 공장 이외에도 사람이 상주하지 않거나 인적이 드문 산간이나 농지 등의 외부환경에도 화재의 위험성에 노출되고 있다.Unlike the normal fire, the fire in the lithium-ion battery stack is an electric fire, and at the same time, a chemical reaction occurs violently and has a fire characteristic that proceeds violently in a short time. Recently, the diffusion and diffusion of BESS is accelerating to overcome the intermittence of new and renewable energy in connection with new and renewable energy, and to reduce the peak load in the power grid. This rare outdoor environment, such as mountain or farmland, is also exposed to the danger of fire.

ESS의 배터리 자체의 화재로 이어지는 변형 등을 측정하는 기술, ESS의 온도제어하는 기술, ESS 스택이 거치된 외장형 컨테이너내의 온도제어 기술,ESS 화재시 자동센싱하여 화재를 진압하는 기술 등이 현재 활발히 개발되고 있다.Currently, technologies for measuring deformation of the battery itself leading to fire, technology for controlling the temperature of the ESS, technology for controlling the temperature in the external container with the ESS stack mounted, and technology for automatically sensing fire in the event of an ESS fire are extinguished. Is becoming.

배터리 ESS 화재를 예방하기 위해서는 배터리 셀의 온도를 제어하는 것이 중요하지만, 일단 온도제어에 실패하여 열폭주로 이어지면 걷잡을 수 없는 빠른 화재확산으로 전개되는 화재 특성을 가지고 있다. 특히 ESS가 최근 신재생에너지 연계 방식이 급속히 확산되는 시장상황이므로, 인적이 드물거나 상주하지 않는 야외환경에 설치되는 경우가 많고, 고가의 신재생에너지 장치 또는 건물과 인접하고 있으며, 소방대가 투입하기까지는 상당시간이 걸리는 환경에 노출되어 있는 상황이다. 특히 문제가 발생하면 열폭주로 인한 맹렬한 화재로 인해, 위치한 산간지대 또는 신재생에너지설비까지 화재의 피해를 입는 경우가 상당하다.In order to prevent the battery ESS fire, it is important to control the temperature of the battery cell, but once it fails to control the temperature, it leads to thermal runaway and has a fire characteristic that is uncontrollable and rapid fire spread. In particular, since ESS is a market situation in which the new and renewable energy linkage method is rapidly spreading in recent years, it is often installed in outdoor environments where humans are rare or non-resident, adjacent to expensive new and renewable energy devices or buildings, and fire brigades are putting in. It is a situation where it is exposed to an environment that takes a considerable amount of time. In particular, if a problem occurs, it is often the case that a mountainous area or a renewable energy facility located in the fire is damaged by a violent fire caused by thermal runaway.

따라서 화재의 근본적인 원인 제거 이외에, 열폭주로 인해 일단 발화가 되면 사실상 ESS 의 소화는 어려우며, 고가의 전기발전설비를 포함하는 주변환경으로의 화재확산을 빠르게 차단하는 것이 사실상 현실적인 화재대응방안이라고 볼 수 있다. 배터리 ESS 화재는 절연을 필요로 하는 전기화재이며, 격렬한 화학반응을 보이며, 주변부로의 확산이 큰 재산피해를 유발할 수 있는 연계장치이며, 사람이 상주하지 않거나 인적이 드물어 화재발견 및 소화작업이 도심지보다는 오래걸리는 환경에 노출되어 있다. 따라서 ESS 산업의 보급확산 형태에 적합한 ESS의 배터리 특성, ESS의 무인운전기술 환경과 특수화재에 따른 방재기술 등의 조합을 필요로 하고 있다. Therefore, in addition to eliminating the root cause of the fire, it is difficult to extinguish the ESS virtually once it is ignited due to thermal runaway, and it is actually a realistic fire response method to quickly block the spread of fire to the surrounding environment including expensive electric power generation facilities. have. Battery ESS fire is an electrical fire that requires insulation, exhibits violent chemical reactions, and is a linkage device that can cause property damage with a large spread to the periphery. Rather, it is exposed to a longer environment. Therefore, it is necessary to combine battery characteristics of ESS, environment for unmanned operation technology of ESS, and disaster prevention technology according to special fires, which are suitable for the diffusion type of ESS industry.

배터리를 이용하는 외장 컨테이너형 에너지저장장치는 배터리 셀의 문제 또는 공기조화장치의 이상 등으로 인해 화재에 취약한 특성을 가지고 있다.The external container-type energy storage device using a battery has a characteristic that is vulnerable to fire due to a problem of a battery cell or an abnormality of an air conditioner.

그런데 그 화재는 절연소화를 요구하는 전기화재이며, 열폭주를 동반하는 격렬한 화학반응을 동반하며, 장치주변에 고가의 발전설비가 연계된 경우가 대부분이고, 화재발견 및 소화작업투입이 오래걸리는 무인환경 또는 인적이 드문 산지 등에 위치하고 있다.However, the fire is an electrical fire requiring insulation fire extinguishing, accompanied by a violent chemical reaction accompanied by thermal runaway, and in most cases, expensive power generation equipment is connected around the device. It is located in a mountainous area where environment or humanity is rare.

따라서, 화재발생시 이를 빨리 감지할 수 있는 컨테이너 내의 내부 천장면에 설치되어 벽면의 온도 그리고 연기감지를 하는 센서부를 통해 신호를 받아, 설정값 이상의 이상신호가 감지되면 이를 판단하여 소화장치의 스위치를 여는 제어부, 제어부와 소화장치 스위치, 센서부에 전력을 항시 독립적으로 공급하는 전력공급원, 그리고 컨테이너 외부 천장 또는 측면에 위치하여 특수소화분말 또는 소화액을 컨테이너 및 주변부에 산개시키는 소화장치 및 스위치를 포함하는 소화장치로 구성된 일련의 화재확산 방지장치를 통해 언급된 과제의 해결 수단으로 삼고자 한다.Therefore, it is installed on the inner ceiling surface in the container that can detect it quickly in the event of a fire, and receives a signal through the sensor unit that detects the temperature and smoke on the wall, and if an abnormal signal above the set value is detected, judges it and opens the switch of the fire extinguishing device. A fire extinguishing device comprising a control unit, a control unit and a fire extinguishing device switch, a power supply source that independently supplies power to the sensor unit at all times, and a fire extinguishing device and a switch located on a ceiling or side surface of the container to spread special fire extinguishing powder or fire extinguishing solution to the container and the surrounding area It is intended to be used as a means of solving the aforementioned problems through a series of fire-prevention devices consisting of devices.

컨테이너 내에 위치한 셀 스택에서의 열폭주로 인한 발화초기, 천정면으로의 연기확산으로 인한 연기감지가 화재감지속도가 가장 빠를 수 있다. 이러한 연기감지에 더불어 온도센서의 설정값 이상으로의 이상상황은 화재로 판단하기에 오류를 크게 줄일 수 있다. 컨테이너 상부 또는 측면의 소화제를 비산하는 스위치를 작동시키는 것은 화재상황판단에 대한 높은 신뢰도를 요구하기 ‹š문에,소화제 비산의 오류를 줄이기 위해서는 복수의 온도,연기 센서의 트리거 신호가 큰 도움이 된다.The fire detection rate may be the fastest in the fire detection in the initial ignition due to thermal runaway in the cell stack located in the container and in the smoke diffusion to the ceiling. In addition to the smoke detection, an abnormal situation above the set value of the temperature sensor can greatly reduce errors because it is judged as a fire. Activating the switch to dissipate the fire extinguishing agent on the top or side of the container requires high reliability of fire situation determination. ‹š, trigger signals of multiple temperature and smoke sensors are very helpful to reduce the error of fire extinguishing. .

화재가 발생했다고 판단되면, 배터리로 소화액을 직접 분사하는 것이 현명해보이지만, 사실 리튬이온배터리의 열폭주를 막기에는 현존 소화재로는 역부족인 측면이 많고, 오히려 배터리 전소를 용인한채, 화재의 확산속도를 늦춰서 차라리 주변부로의 전이를 방지하는 것이 전체적인 피해감소효과로는 효율적으로 판단된다.If it is judged that a fire has occurred, it seems wise to spray the extinguishing solution directly with a battery, but in fact, there are many aspects of the existing fire extinguishing material that are not enough to prevent the thermal runaway of the lithium-ion battery. Slowing down the speed to prevent the transition to the periphery is judged as an effective overall damage reduction effect.

전기화재의 경우, 통전으로 인한 감전사고 및 추가화재가 발생하므로, 절연소화 및 특수화재 소화에 맞는 소화재를 넓게 비산하는 것이 효과적이다. 이러한 작용을 통하여 완전소화 또는 화재확산 속도를 늦춰 화재진압 시간을 벌고, 주변부로의 화재확산을 막는다면 상당한 화재피해를 줄일 수 있을 것으로 기대한다.In the case of electric fires, it is effective to scatter fire extinguishing materials suitable for insulation fire extinguishing and special fire extinguishing since electric shock and additional fire occur due to energization. Through these actions, it is expected that significant fire damage can be reduced if the fire extinguishing time is reduced by slowing down the rate of complete extinguishing or fire spreading and preventing the spread of fire to surrounding areas.

본 발명에 따른 센서부,제어부 그리고 스위치와 연결된 독립전원부, 그리고 소화부의 연결을 나타내는 구성도이다. It is a configuration diagram showing the connection of the sensor unit, the control unit and the independent power supply unit connected to the switch and the fire extinguishing unit according to the present invention. 본 발명에 따른 외장 컨테이너형 ESS의 모습과 소화부의 배치를 나타낸 예시를 묘사한 사시도이다.It is a perspective view showing an example of the appearance of the external container type ESS and the arrangement of the fire extinguishing unit according to the present invention. 본 발명에 따른 외장 컨테이너(60)의 내외부에 배치된 센서부(10)와 제어부(20), 독립전원부(30), 스위치(40) 및 소화액/소화분말이 충전된 소화부(50)를 나타낸 단면도이다.A sensor unit 10 and a control unit 20, an independent power supply unit 30, a switch 40, and a fire extinguishing unit 50 filled with extinguishing liquid/digestion powder, which are disposed inside and outside the exterior container 60 according to the present invention, are shown. It is a cross section.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 그리고 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. And in the description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

본 발명의 화재확산 방지 기능이 강화된 외장 컨테이너형 에너지저장장치는 도1에 도시한 바와 같이, 센서부(10)와 제어부(20), 소화재가 충진된 소화부(50), 그리고 상기 장치들에 전원을 공급하는 독립전원(30)으로 구성된다.The external container-type energy storage device with enhanced fire diffusion prevention function of the present invention has a sensor unit 10 and a control unit 20, a fire extinguishing unit 50 filled with fire extinguishing material, and the devices as shown in FIG. It is composed of an independent power supply 30 for supplying power to the.

도2는 사시도로써 배터리 등 에너지저장원이 스택형태로 보관되는 외장 컨테이너(60)과 그 상부에 위치하는 소화부(50)를 나타내고 있다.2 is a perspective view showing an external container 60 in which energy storage sources such as a battery are stored in a stack form, and a fire extinguishing unit 50 positioned thereon.

도3은 단면도로써 컨테이너(60) 내부 천장에 위치하는 센서부(10)와 이에 연결된 제어부(20)와 독립전원(30), 그리고 화부(50)내의 가압된 소화제를 주변으로 비산시키는 관로을 개폐하는 스위치(40)를 나타내고 있다.Figure 3 is a cross-sectional view of the container 60, the sensor portion 10 and the control unit 20 and the independent power supply 30, which is located on the ceiling located therein, and opens and closes the pipeline that scatters the pressurized extinguishing agent in the surrounding area 50 The switch 40 is shown.

컨테이너(50) 내에 위치한 배터리 셀 스택에서의 열폭주로 인한 발화초기, 천정면으로의 연기가 발생하게 된다. 연기감지센서(11)로 연기확산을 감지하는 것이 발생열을 온도센서(12)로 감지하는 것에 비해서 빠른 감지가 가능하며, 연기센서(11)와 온도센서(12)가 동시에 설정값을 넘어서는 상황에서는 각각의 센서 오류로 인한 화재발생 신호의 신뢰도를 크게 강화할 수 있다. In the initial ignition due to thermal runaway in the battery cell stack located in the container 50, smoke to the ceiling surface is generated. It is possible to detect the diffusion of smoke by the smoke detection sensor 11 compared to detecting the heat generated by the temperature sensor 12, and in a situation where the smoke sensor 11 and the temperature sensor 12 simultaneously exceed the set value. The reliability of the fire occurrence signal due to each sensor error can be greatly enhanced.

소화부(50)의 소화재가 비산될 경우, 비가역적인 상황으로 전개되므로 이러한 센서신호의 신뢰도는 중요하다.When the fire extinguishing material of the fire extinguishing unit 50 is scattered, it is developed in an irreversible situation, so the reliability of the sensor signal is important.

화재가 발생된것으로 제어부(20)에서 판단되면, 가압충전된 소화부(50)에서 소화재가 컨테이너(60)및 컨테이너 주변부로 비산분사되게 한다. 각각의 분사구의 개폐는 제어부(20)와 독립전원(30)으로 연결된 스위치(40)에서 결정되어, 분사목표지역을 향해 분사된다.If the control unit 20 determines that a fire has occurred, the fire extinguishing agent is scattered and sprayed to the container 60 and the container periphery from the pressurized and charged fire extinguishing unit 50. The opening and closing of each injection hole is determined by the switch 40 connected to the control unit 20 and the independent power source 30, and is injected toward the injection target area.

독립전원(30)을 사용함으로써 화재진행에 따른 전원단락으로 인한 시스템의 셧다운을 방지한다. By using the independent power supply 30, it is possible to prevent the system from being shut down due to a power shortage due to fire.

소화부(50)에 충진된 소화재는 전기화재 및 리튬이온배터리의 열폭주에 맞는 화학반응 제어에 맞는 소화액 또는 소화분말을 사용하여, 컨테이너(60) 표면을 덮게하여 컨테이너 내부로의 산소유입을 억제하여 소화에 도움이 되게 하고, 주변부로 분사된 소화재로 인해 주변으로의 화재확산을 억제한다.The fire extinguishing agent filled in the fire extinguishing part 50 uses the fire extinguishing solution or fire extinguishing powder suitable for the chemical reaction control suitable for the thermal runaway of the electric fire and lithium-ion battery, so that the surface of the container 60 is covered to suppress the inflow of oxygen into the container. It helps to extinguish, and suppresses the spread of fire to the surroundings due to fire extinguishing material sprayed to the periphery.

전기화재의 경우, 통전으로 인한 감전사고 및 추가화재가 발생하므로, 절연소화 및 특수화재 소화에 맞는 소화재를 넓게 비산하는 것이 효과적이다. In the case of electric fires, it is effective to scatter fire extinguishing materials suitable for insulation fire extinguishing and special fire extinguishing since electric shock and additional fire occur due to energization.

이러한 작용을 통하여 완전소화 또는 화재확산 속도를 늦춰 화재진압 시간을 벌고, 주변부로의 화재확산을 막는다면 상당한 화재피해를 줄일 수 있을것으로 기대한다.화재가 발생했다고 판단되면, 배터리로 소화액을 직접 분사하는 것이 현명해보이지만, 사실 리튬이온배터리의 열폭주를 막기에는 현존 소화재로는역부족인 측면이 많고, 오히려 배터리 전소를 용인한채, 화재의 확산속도를 늦춰서 차라리 주변부로의 전이를 방지하는 것이 전체적인 피해감소효과로는 효율적으로 판단된다.Through this action, it is expected that if the fire extinguishing time is reduced by slowing down the rate of complete extinguishing or fire spreading and preventing the spread of fire to the periphery, it is expected that significant fire damage can be reduced. It seems wise to do this, but in fact, there are many aspects of the existing fire extinguishing materials that are not enough to prevent the thermal runaway of lithium-ion batteries. The reduction effect is judged to be efficient.

이상에서 본 발명은 상기 실시예를 참고하여 설명하였지만 본 발명의 기술사사범위 내에서 다양한 변형실시가 가능함은 물론이다.In the above, the present invention has been described with reference to the above embodiment, but it is of course possible to perform various modifications within the technical scope of the present invention.

10: 센서부
11: 온도센서
12: 연기감지센서
20: 제어부
30: 독립전원부
40: 스위치
50: 소화부
60: 외장 컨테이너10: sensor unit
11: Temperature sensor
12: Smoke detection sensor
20: control unit
30: independent power supply
40: switch
50: digestive system
60: outer container

Claims (4)

실외에 설치되는 컨테이너 형태의 배터리 에너지저장장치에 대해서, 컨테이너 내부의 온도, 연기유무 또는 온도와 연기유무를 감지하는 센서신호를 통해 컨테이너 상부 또는 측면부 또는 상부와 측면부에 설치된 소화재(분말 또는 거품 또는 폭발식 또는 압력식)의 작동밸브가 작동하여 소화재가 대상 컨테이너의 외부와 주변에 비산되어 컨테이너 주변으로 화재가 확산되는 것을 방지하고, 컨테이너 자체의 화재확산 속도를 감쇄시키는 역할을 하는 시스템
For battery energy storage devices in the form of containers installed outdoors, fire extinguishing agents (powder or foam or installed in the upper or side parts or upper and side parts of the container through sensor signals detecting the temperature, smoke or temperature and smoke inside the container) A system that acts to prevent the fire from spreading around the container due to the extinguishing material being scattered outside and around the target container by actuating the operation valve of the explosive or pressure type), and attenuating the rate of fire spread of the container itself.
청구항 1에 있어서 컨테이너 내부의 천장면에 온도센서 및 연기감지센서로 이뤄지는 센서부를 설치하여 설정값 이상의 신호가 발생할 경우 제어부에서 화재의 발생유무를 감지하여 소화부의 작동스위치를 개폐하는 것을 특징으로 시스템.The system according to claim 1, wherein a sensor unit consisting of a temperature sensor and a smoke detection sensor is installed on the ceiling inside the container to open and close the operation switch of the fire extinguishing unit by detecting whether a fire has occurred or not when the signal exceeds a set value. 청구항 1에 있어서 센서부와 제어부, 그리고 스위치를 구동하는 전력이 독립적으로 운영되는 전력원을 갖는 것을 특징으로 하는 시스템.
The system according to claim 1, characterized in that the sensor unit, the control unit, and a power source for driving the switch independently have a power source.
청구항 1에 있어서, 전기화재 및 화학성 열폭발로 인한 화재에 적합한 분말형태의 소화제 또는 액상형태의 소화액을 가압용기에 충진하여, 스위치에 의해
컨테이너 외벽 및 컨테이너 사방주변으로 비산되는 것을 특징으로 하는 시스템




The method according to claim 1, Filling the fire extinguishing agent in the form of a powder or a liquid form suitable for fire due to electrical fires and chemical thermal explosion, the pressure vessel, by a switch
A system characterized by scattering around the outer wall of the container and around the container.




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WO2023121419A1 (en) * 2021-12-24 2023-06-29 주식회사 엘지에너지솔루션 Battery pack with improved safety
WO2023121417A1 (en) * 2021-12-23 2023-06-29 주식회사 엘지에너지솔루션 Battery pack with improved safety
KR20230107447A (en) 2022-01-07 2023-07-17 주식회사 디아이티이엔지 A storage container for a desert climate-adaptive energy storage system equipped with a fire suppression unit
KR20230107448A (en) 2022-01-07 2023-07-17 주식회사 디아이티이엔지 A storage container for an energy storage system for desert climates equipped with an air conditioning system
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113921942A (en) * 2021-09-24 2022-01-11 东风时代(武汉)电池系统有限公司 New energy rapid cooler, cooling method of battery pack and automobile
WO2023121417A1 (en) * 2021-12-23 2023-06-29 주식회사 엘지에너지솔루션 Battery pack with improved safety
WO2023121419A1 (en) * 2021-12-24 2023-06-29 주식회사 엘지에너지솔루션 Battery pack with improved safety
KR20230107447A (en) 2022-01-07 2023-07-17 주식회사 디아이티이엔지 A storage container for a desert climate-adaptive energy storage system equipped with a fire suppression unit
KR20230107448A (en) 2022-01-07 2023-07-17 주식회사 디아이티이엔지 A storage container for an energy storage system for desert climates equipped with an air conditioning system
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