JP2016002419A - Fire-extinguishing system and fire-extinguishing method for power storage device - Google Patents

Fire-extinguishing system and fire-extinguishing method for power storage device Download PDF

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JP2016002419A
JP2016002419A JP2014126440A JP2014126440A JP2016002419A JP 2016002419 A JP2016002419 A JP 2016002419A JP 2014126440 A JP2014126440 A JP 2014126440A JP 2014126440 A JP2014126440 A JP 2014126440A JP 2016002419 A JP2016002419 A JP 2016002419A
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fire
fire extinguishing
control unit
power storage
batteries
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蜂谷　城充
Jiyoujiyu Hachitani
城充 蜂谷
浜野　成史
Shigefumi Hamano
成史 浜野
邦宏 赤羽
Kunihiro Akaha
邦宏 赤羽
青木　栄一郎
Eiichiro Aoki
栄一郎 青木
浩徳 小野
Hironori Ono
浩徳 小野
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NEC Engineering Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Abstract

PROBLEM TO BE SOLVED: To provide a fire-extinguishing system and fire-extinguishing method for a power storage device capable of preventing the spread of a fire to a battery and extinguishing the fire immediately even if the fire has occurred at a place other than the battery.SOLUTION: A plurality of sensors 2 installed in the proximity to each of a plurality of batteries 6 and a control unit 7 connecting with the plurality of batteries 6 and monitoring their charged capacities, respectively output first signals when detecting a fire, fire-extinguishing means 3 discharges fire-extinguishing gas according to the output of the first signals by the sensors 2, and each of the plurality of batteries 6 and the control unit 7 is set as at least one discharge destination from a plurality of nozzles 4 discharging at least part of the fire-extinguishing gas to either of the plurality of batteries 6 and the control unit 7.

Description

本発明は、蓄電装置の消火システム、及び蓄電装置の消火方法に関し、早急に消火可能な蓄電装置の消火システム、及び蓄電装置の消火方法に関する。   The present invention relates to a fire extinguishing system for a power storage device and a fire extinguishing method for a power storage device, and more particularly to a fire extinguishing system for a power storage device that can be extinguished quickly and a fire extinguishing method for a power storage device.

蓄電池としてリチウムイオン電池等を用いた蓄電システムに火災が発生した場合、この火災を消火する際に、電池の化学的な性質上水を用いることができない。一般に、二酸化炭素、窒素等の不活性ガスを火災が発生した部分(例えば、電池)に噴霧し、燃焼物への酸素を遮断し燃焼物を酸欠状態にすることにより、消火するようにしている。   When a fire occurs in a power storage system using a lithium ion battery or the like as a storage battery, water cannot be used due to the chemical nature of the battery when extinguishing the fire. In general, spray an inert gas such as carbon dioxide or nitrogen on the part where a fire has occurred (for example, a battery), shut off the oxygen to the combustion product, and put the combustion product in an oxygen-deficient state to extinguish the fire Yes.

不活性ガスを用いて燃焼物への酸素の遮断を行うことにより消火する技術が特許文献１に開示されている。特許文献１に開示のナトリウム−硫黄電池における消火方法及びその装置は、複数の収納ケースと、火災検出装置と、ガス放出用ボンベと、制御装置とにより構成されている。収納ケースには、複数のナトリウム−硫黄電池の単電池よりなる集合電池が収納されている。火災検出装置は、温度センサ等であり、各収納ケース内に配設され、収納ケース内に火災が発生して内部温度が所定値以上になったとき、火災検出信号を出力する。ガス放出用ボンベは、収納ケース内に窒素ガスを放出する。制御装置は、収納ケース内の火災検出装置から火災検出信号が入力されたとき、火災の発生した収納ケースに窒素ガスが放出されるように、ガス放出用ボンベと収納ケースとの間の各種弁を開放する。すなわち、複数の収納ケースのいずれかで火災事故が発生すると、火災検出装置から制御装置に火災検知信号が入力される。すると、制御装置の制御により、ガス放出用ボンベと収納ケースとの間の弁が開放されて、ガス放出用ボンベから収納ケース内に窒素ガスが放出される。これにより、収納ケース内の空気が薄められて酸欠状態となり、収納ケース内の火災が消火される。   Patent Document 1 discloses a technique for extinguishing fire by blocking oxygen to a combustion product using an inert gas. The fire extinguishing method and apparatus for a sodium-sulfur battery disclosed in Patent Document 1 includes a plurality of storage cases, a fire detection device, a gas discharge cylinder, and a control device. In the storage case, an assembled battery made up of a plurality of sodium-sulfur battery cells is stored. The fire detection device is a temperature sensor or the like, and is disposed in each storage case, and outputs a fire detection signal when a fire occurs in the storage case and the internal temperature exceeds a predetermined value. The gas discharge cylinder releases nitrogen gas into the storage case. When the fire detection signal is input from the fire detection device in the storage case, the control device is equipped with various valves between the gas release cylinder and the storage case so that nitrogen gas is released into the storage case where the fire has occurred. Is released. That is, when a fire accident occurs in any of the plurality of storage cases, a fire detection signal is input from the fire detection device to the control device. Then, under the control of the control device, the valve between the gas discharge cylinder and the storage case is opened, and nitrogen gas is released from the gas discharge cylinder into the storage case. As a result, the air in the storage case is diluted to be in an oxygen deficient state, and the fire in the storage case is extinguished.

特開平５−３１７４４０号公報JP-A-5-317440

上述した特許文献１に開示のナトリウム−硫黄電池における消火方法及びその装置は、火災検出装置を蓄電装置内の収納ケース（蓄電池）にのみ配置し、それ以外、例えば全体を制御する制御装置には配置していない。このため、火災検出装置を配置していない制御装置で火災が発生した場合、この火災が、化学的な性質上非常に燃えやすいナトリウム−硫黄電池等の蓄電池を収納した収納ケースに燃え移り、早急に消火できず大きな火災になるおそれがあるという問題がある。   The above-described fire extinguishing method and apparatus for a sodium-sulfur battery disclosed in Patent Document 1 includes a fire detection device disposed only in a storage case (storage battery) in a power storage device, and, for example, a control device that controls the whole, for example. Not placed. For this reason, when a fire occurs in a control device that does not have a fire detection device, the fire burns out quickly into a storage case containing a storage battery such as a sodium-sulfur battery that is very flammable due to its chemical nature. There is a problem that the fire cannot be extinguished and there is a risk of a big fire.

本発明の目的は、上記課題を解決して、電池以外で火災が発生しても、火災の電池への延焼を抑制でき、早急に消火することができる蓄電装置の消火システム、及び蓄電装置の消火方法を提供することである。   An object of the present invention is to solve the above problems, and to suppress the spread of fire to a battery even if a fire occurs other than the battery, and to extinguish the fire quickly and quickly It is to provide a fire fighting method.

本発明の蓄電装置の消火システムは、複数の電池と該複数の電池と接続し充電量を監視する制御ユニットとの各々に近接して設置され、火災を感知した場合に第一の信号を各々出力する複数のセンサと、前記センサの前記第一の信号の出力に基づき、消火ガスを放出する消火手段と、前記消火ガスのうち少なくとも一部を、前記複数の電池と前記制御ユニットのいずれかへ放出する複数のノズルと、を備え、前記複数の電池と前記制御ユニットの各々が、前記複数のノズルの少なくとも１つの放出先に設定されている。   The fire extinguishing system for a power storage device according to the present invention is installed in proximity to each of a plurality of batteries and a control unit that is connected to the plurality of batteries and monitors the amount of charge, and outputs a first signal when a fire is detected. A plurality of sensors to be output; a fire extinguishing means for releasing a fire extinguishing gas based on an output of the first signal of the sensor; and at least a part of the fire extinguishing gas is selected from the plurality of batteries and the control unit. A plurality of nozzles for discharging to the plurality of nozzles, and each of the plurality of batteries and the control unit is set as at least one discharge destination of the plurality of nozzles.

本発明の蓄電装置の消火方法は、複数の電池と該複数の電池と接続し充電量を監視する制御ユニットとから火災を感知し、火災の感知に基づき、消火ガスを放出し、 、前記複数の電池と前記制御ユニットの各々が、前記消火ガスのうち少なくとも一部を、前記複数の電池と前記制御ユニットのいずれかへ放出する前記複数のノズルの少なくとも１つの放出先に設定されている。   The fire extinguishing method for a power storage device according to the present invention detects a fire from a plurality of batteries and a control unit that is connected to the plurality of batteries and monitors the amount of charge, and based on the fire detection, emits a fire extinguishing gas. Each of the battery and the control unit is set to at least one discharge destination of the plurality of nozzles that discharges at least a part of the fire extinguishing gas to any of the plurality of batteries and the control unit.

本発明によれば、電池以外で火災が発生しても、火災の電池への延焼を抑制でき、早急に消火することができる蓄電装置の消火システム、及び蓄電装置の消火方法を提供することである。   According to the present invention, it is possible to provide a fire extinguishing system for a power storage device and a fire extinguishing method for a power storage device that can suppress the spread of fire to the battery and quickly extinguish the fire even if a fire other than the battery occurs. is there.

本発明の第１の実施の形態に係る蓄電装置の消火システムの一例を示す図である。It is a figure which shows an example of the fire extinguishing system of the electrical storage apparatus which concerns on the 1st Embodiment of this invention. 本発明の第２の実施の形態に係る蓄電装置の消火システムの一例を示す図である。It is a figure which shows an example of the fire extinguishing system of the electrical storage apparatus which concerns on the 2nd Embodiment of this invention. 本発明の第２の実施の形態に係る蓄電装置の消火システムの動作の一例を示すフローチャートである。It is a flowchart which shows an example of operation | movement of the fire extinguishing system of the electrical storage apparatus which concerns on the 2nd Embodiment of this invention.

次に、本発明の実施の形態について図面を参照して説明する。
（第１の実施の形態）
図１は、本発明の第１の実施の形態に係る蓄電装置の消火システムの一例を示す図である。 Next, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram illustrating an example of a fire extinguishing system for a power storage device according to a first embodiment of the present invention.

本実施の形態に係る蓄電装置の消火システム１は、複数のセンサ２（火災検出装置）と、消火手段３と、複数のノズル４とにより構成される。図１には、本消火システムの消火対象である、リチウムイオン電池等の電池６（蓄電池）とこの電池６に接続し常時充電量を監視する制御ユニット７とを備えた蓄電装置も記載してある。   A fire extinguishing system 1 for a power storage device according to the present embodiment includes a plurality of sensors 2 (fire detection devices), a fire extinguishing means 3, and a plurality of nozzles 4. FIG. 1 also shows a power storage device including a battery 6 (storage battery) such as a lithium ion battery and a control unit 7 that is connected to the battery 6 and constantly monitors the amount of charge, which is a fire extinguishing target of the fire extinguishing system. is there.

複数のセンサ２は、火災の感知対象の、複数の電池６（蓄電池）と制御ユニット７との各々に近接して設定し、煙、熱等により火災を感知し、第一の信号を各々出力する火災検出装置である。複数の電池６と制御ユニット７は、蓄電装置に備えられている。複数の電池６は、充放電、蓄電可能な電池である。制御ユニット７は、各々の電池６の電極に接続し過電流、過放電を防ぐために常時充電量を監視する。制御ユニット７は、電池６の電極に接続しているので、制御ユニット７内等であるいは接続途中でショート等により電池６から制御ユニット７に大電流が流れこみ発火のおそれがある。消火手段３は、センサ２の第一の信号の出力に基づき、消火ガス（不活性ガス）を放出する。複数のノズル４は、消火ガスのうち少なくとも一部を、複数の電池６と制御ユニット７のいずれかへ放出する。複数のノズル４は、複数の電池６と制御ユニット７の各々が、複数のノズル４の少なくとも１つの放出先に設定されている。複数のノズル４は、例えば、複数の電池６と、制御ユニット７の各々に対応して設定されていてもよい。そして、消火手段３が出力した消火ガスのうち少なくとも一部を、複数の電池６と、制御ユニット７のうちの少なくとも自身のノズル４に対応するものへ各々放出（噴霧）してもよい。   The plurality of sensors 2 are set close to each of the plurality of batteries 6 (storage batteries) and the control unit 7 to be detected by the fire, detect the fire by smoke, heat, etc., and output the first signals respectively. It is a fire detection device. The plurality of batteries 6 and the control unit 7 are provided in the power storage device. The plurality of batteries 6 are batteries that can be charged and discharged and stored. The control unit 7 is connected to the electrode of each battery 6 and constantly monitors the charge amount in order to prevent overcurrent and overdischarge. Since the control unit 7 is connected to the electrode of the battery 6, a large current flows from the battery 6 to the control unit 7 due to a short circuit or the like in the control unit 7 or the like, and there is a risk of ignition. The fire extinguishing means 3 emits a fire extinguishing gas (inert gas) based on the output of the first signal of the sensor 2. The plurality of nozzles 4 discharge at least a part of the fire extinguishing gas to either the plurality of batteries 6 or the control unit 7. In the plurality of nozzles 4, each of the plurality of batteries 6 and the control unit 7 is set as at least one discharge destination of the plurality of nozzles 4. The plurality of nozzles 4 may be set corresponding to each of the plurality of batteries 6 and the control unit 7, for example. And you may discharge | emit (spray) at least one part among the fire extinguishing gas which the fire extinguishing means 3 output to the thing corresponding to the nozzle 4 of the some battery 6 and the control unit 7, respectively.

次に、本実施の形態の蓄電装置の消火システムの動作を説明する。   Next, operation | movement of the fire extinguishing system of the electrical storage apparatus of this Embodiment is demonstrated.

蓄電装置の備えた複数の電池６と制御ユニット７とのいずれかに火災事故が発生すると、火災事故が発生したものに対応するセンサ２が、第一の信号を出力する。そして、消火手段３は、第一の信号の出力に基づき、消火ガスを放出する。複数のノズル４は、消火手段３が放出した消火ガスを、例えば、少なくとも自身に対応する電池６又は制御ユニット７へ放出（噴霧）する。   When a fire accident occurs in any of the plurality of batteries 6 and the control unit 7 included in the power storage device, the sensor 2 corresponding to the fire accident outputs a first signal. And fire extinguishing means 3 discharges fire extinguishing gas based on the output of the 1st signal. The plurality of nozzles 4 discharge (spray) the fire extinguishing gas released by the fire extinguishing means 3 to, for example, at least the battery 6 or the control unit 7 corresponding to itself.

このように、本発明の第１の実施の形態によれば、蓄電装置内の電池以外の制御装置にも火災検出装置を配置したので、電池以外の制御装置で火災が発生しても、制御装置の火災を消火することできる。このため、制御装置の火災の電池への延焼を抑制でき、早急に消火することができる。
（第２の実施の形態）
図２は、本発明の第２の実施の形態に係る蓄電装置の消火システムの一例を示す図である。 As described above, according to the first embodiment of the present invention, since the fire detection device is arranged in the control device other than the battery in the power storage device, the control can be performed even if a fire occurs in the control device other than the battery. Can extinguish equipment fires. For this reason, the fire spread of the fire of the control device to the battery can be suppressed, and the fire can be extinguished quickly.
(Second Embodiment)
FIG. 2 is a diagram illustrating an example of a fire extinguishing system for a power storage device according to the second embodiment of the present invention.

本発明の第２の実施の形態は、第１の実施の形態に制御部を付加し、第１の実施の形態の蓄電装置の消火システム１をより具体化したものである。したがって、主に第１の実施の形態と相違する部分について説明する。   In the second embodiment of the present invention, a control unit is added to the first embodiment, and the fire extinguishing system 1 for the power storage device according to the first embodiment is more specific. Therefore, the difference from the first embodiment will be mainly described.

本実施の形態に係る蓄電装置の消火システム１は、複数のセンサ２（火災検出装置）と、消火手段３と、複数のノズル４と、制御部５とにより構成される。   A fire extinguishing system 1 for a power storage device according to the present embodiment includes a plurality of sensors 2 (fire detection devices), a fire extinguishing means 3, a plurality of nozzles 4, and a control unit 5.

制御部５は、複数のセンサ２から第一の信号（火災感知信号）を各々受け、消火手段３に放出を指示する第二の信号（放出指示信号）を出力する。   The control unit 5 receives first signals (fire detection signals) from the plurality of sensors 2 and outputs a second signal (release instruction signal) instructing the fire extinguishing means 3 to release.

消火手段３は、制御部５から第二の信号を受け消火ガスを放出する。消火ガスは、例えば二酸化炭素である。消火ガスは、二酸化炭素にこだわらず窒素等不活性ガスであればよい。消火手段３はパイプにより複数のノズル４と接続する。   The fire extinguishing means 3 receives the second signal from the control unit 5 and releases the fire extinguishing gas. The fire extinguishing gas is, for example, carbon dioxide. The fire extinguishing gas may be an inert gas such as nitrogen regardless of carbon dioxide. The fire extinguishing means 3 is connected to a plurality of nozzles 4 by pipes.

制御部５は、複数のセンサ２のうちの火災感知信号を出力したセンサ２に対応するノズル４へ導かれる消火手段３が放出した消火ガスの通路を開かせ、ノズル４に消火ガスを放出（噴霧）させる。すなわち、制御部５は、ノズル４と消火手段３とを接続した消火ガスの通路となるパイプの途中に設定された例えば電磁弁（不図示）に電圧を印加して消火ガスの通路を開き、消火ガスを放出（噴霧）させる。電磁弁は、電圧の印加、不印加により、消火ガスの通路を開閉する機器である。   The control unit 5 opens the path of the fire extinguishing gas released by the fire extinguishing means 3 guided to the nozzle 4 corresponding to the sensor 2 that has output the fire detection signal among the plurality of sensors 2 and releases the fire extinguishing gas to the nozzle 4 ( Spray). That is, the control unit 5 applies a voltage to, for example, a solenoid valve (not shown) set in the middle of a pipe serving as a fire extinguishing gas passage connecting the nozzle 4 and the fire extinguishing means 3 to open the fire extinguishing gas passage, Release (spray) fire-extinguishing gas. The solenoid valve is a device that opens and closes a fire extinguishing gas passage by applying or not applying a voltage.

ノズル４は、消火手段３に接続されたパイプ内を通って供給される消火ガスを、複数の電池６と制御ユニット７のうちの自身のノズル４に対応したものへ放出（噴霧）する。   The nozzle 4 discharges (sprays) the fire extinguishing gas supplied through the pipe connected to the fire extinguishing means 3 to the one corresponding to the nozzle 4 of the plurality of batteries 6 and the control unit 7.

制御ユニット７は、電圧モニタラインで電池６の電極に接続し、電池６の電圧をモニタして現在の充電量を常時監視する。通常、電池６の電圧と電池６に溜まっている充電量との関係は予めわかっているので、電圧を測定することにより、現在の充電量が推定される。制御ユニット７は、現在の充電量が満杯（蓄電容量）に近い場合、充電を停めたり、現在の充電量が空に近い場合、放電を停めたりして、過充電、過放電を防いでいる。   The control unit 7 is connected to the electrode of the battery 6 through a voltage monitor line, monitors the voltage of the battery 6 and constantly monitors the current charge amount. Usually, since the relationship between the voltage of the battery 6 and the charge amount accumulated in the battery 6 is known in advance, the current charge amount is estimated by measuring the voltage. The control unit 7 prevents overcharge and overdischarge by stopping charging when the current charge amount is close to full (storage capacity) or stopping discharge when the current charge amount is close to empty. .

尚、制御部５と、複数のセンサ２、複数のノズル４、及び消火手段３との接続は、ケーブル、電線等の有線であっても、無線であっても良い。   The connection between the control unit 5 and the plurality of sensors 2, the plurality of nozzles 4, and the fire extinguishing means 3 may be wired such as cables and electric wires, or may be wireless.

次に、本実施の形態の蓄電装置の消火システムの動作を、図３を使用して説明する。   Next, operation | movement of the fire extinguishing system of the electrical storage apparatus of this Embodiment is demonstrated using FIG.

図３は、本発明の第２の実施の形態に係る蓄電装置の消火システムの動作の一例を示すフローチャートである。   FIG. 3 is a flowchart showing an example of the operation of the fire extinguishing system for the power storage device according to the second embodiment of the present invention.

図３のステップＳ１では、各センサ２は、それぞれ、熱、煙等に基づき、火災の発生を感知し続け、火災の発生を感知した際に、ステップＳ２へ進む。この場合には、複数の電池６と制御ユニット７とのうちの火災を感知したセンサ２に対応しているものに火災事故が発生している。   In step S1 of FIG. 3, each sensor 2 continues to sense the occurrence of a fire based on heat, smoke, etc., and proceeds to step S2 when the occurrence of a fire is sensed. In this case, a fire accident has occurred in the battery 6 and the control unit 7 corresponding to the sensor 2 that has detected the fire.

図３のステップＳ２では、火災の発生を感知したセンサ２は、第一の信号（火災感知信号）を出力し、終了する。火災感知信号には、センサ２を識別する番号等が付加されている。   In step S2 of FIG. 3, the sensor 2 that has detected the occurrence of a fire outputs a first signal (fire detection signal) and ends. A number or the like for identifying the sensor 2 is added to the fire detection signal.

図３のステップＳ３では、制御部５は、火災の発生を感知したセンサ２からの第一の信号の受信を待ち、第一の信号を受信しステップＳ４へ進む。   In step S3 of FIG. 3, the control unit 5 waits for reception of the first signal from the sensor 2 that has detected the occurrence of a fire, receives the first signal, and proceeds to step S4.

図３のステップＳ４では、制御部５は、消火手段３に第二の信号（放出指示信号）を出力する。   In step S4 of FIG. 3, the control unit 5 outputs a second signal (release instruction signal) to the fire extinguishing means 3.

図３のステップＳ５では、制御部５は、ステップＳ３で受信した火災感知信号に付加された番号のセンサ２に対応するノズル４から消火ガスを放出（噴霧）させる。すなわち、制御部５は、パイプの途中に設定された例えば電磁弁（不図示）に電圧を印加して消火ガスの通路を開き、ノズル４から消火ガスを放出（噴霧）させる。そして、ステップＳ３へ戻る。   In step S5 of FIG. 3, the control unit 5 releases (sprays) a fire extinguishing gas from the nozzle 4 corresponding to the sensor 2 of the number added to the fire detection signal received in step S3. That is, the control unit 5 applies a voltage to, for example, a solenoid valve (not shown) set in the middle of the pipe to open the fire extinguishing gas passage, and discharge (spray) the fire extinguishing gas from the nozzle 4. Then, the process returns to step S3.

図３のステップＳ６では、消火手段３は、制御部５からの第二の信号の受信を待ち、第二の信号を受信しステップＳ７へ進む。   In step S6 of FIG. 3, the fire extinguishing means 3 waits for reception of the second signal from the control unit 5, receives the second signal, and proceeds to step S7.

図３のステップＳ７では、消火手段３は、消火ガスの放出を開始する。すでに放出を開始しているときには、消火ガスを放出し続ける。そして、ステップＳ６へ戻る。   In step S7 in FIG. 3, the fire extinguishing means 3 starts releasing the fire extinguishing gas. When the discharge has already started, the fire extinguishing gas continues to be released. Then, the process returns to step S6.

これにより、複数のノズル４のうちの、火災の発生が感知されたセンサ２に対応するノズル４のみが消火ガスを放出（噴霧）する。すなわち、複数の電池６と制御ユニット７のうちの、火災が発生したものだけに限定して消火ができる。このため、消火ガスは、全ノズル４から放出されないので、例えば、消火手段３がボンベ等の容器である場合、消火手段３から放出されるガス圧の低下が抑えられ、かつ、放出時間を長くすることができる。   Thereby, only the nozzle 4 corresponding to the sensor 2 in which the occurrence of fire is detected among the plurality of nozzles 4 emits (sprays) the fire extinguishing gas. That is, fire extinguishing can be limited to only the battery 6 and the control unit 7 that have fired. For this reason, since the fire extinguishing gas is not released from all the nozzles 4, for example, when the fire extinguishing means 3 is a container such as a cylinder, a decrease in the gas pressure released from the fire extinguishing means 3 is suppressed, and the discharge time is lengthened. can do.

このように、本発明の第２の実施の形態によれば、蓄電装置内の電池以外の制御装置にも火災検出装置を配置したので、電池以外の制御装置で火災が発生しても、制御装置の火災を消火することできる。このため、制御装置の火災の電池への延焼を抑制でき、早急に消火することができる。   As described above, according to the second embodiment of the present invention, since the fire detection device is arranged in the control device other than the battery in the power storage device, the control can be performed even if a fire occurs in the control device other than the battery. Can extinguish equipment fires. For this reason, the fire spread of the fire of the control device to the battery can be suppressed, and the fire can be extinguished quickly.

尚、上記の説明では、制御ユニットを一つとして説明したが、一つにこだわることなく、複数設定しても良い。この場合には、複数の電池を幾つかの組に分け、各電池の組に、複数の制御ユニットを割当てても良い。   In the above description, a single control unit has been described. However, a plurality of control units may be set without sticking to one. In this case, a plurality of batteries may be divided into several groups, and a plurality of control units may be assigned to each battery group.

１ 蓄電装置の消火システム
２ センサ
３ 消火手段
４ ノズル
５ 制御部
６ 電池
７ 制御ユニット DESCRIPTION OF SYMBOLS 1 Fire extinguishing system of electrical storage apparatus 2 Sensor 3 Fire extinguishing means 4 Nozzle 5 Control part 6 Battery 7 Control unit

Claims (10)

複数の電池と該複数の電池と接続し充電量を監視する制御ユニットとの各々に近接して設置され、火災を感知した場合に第一の信号を各々出力する複数のセンサと、
前記センサの前記第一の信号の出力に基づき、消火ガスを放出する消火手段と、
前記消火ガスのうち少なくとも一部を、前記複数の電池と前記制御ユニットのいずれかへ放出する複数のノズルと、
を備え、
前記複数の電池と前記制御ユニットの各々が、前記複数のノズルの少なくとも１つの放出先に設定されていることを特徴とする蓄電装置の消火システム。 A plurality of sensors connected to the plurality of batteries and connected to each of the control units for monitoring the amount of charge, a plurality of sensors each outputting a first signal when a fire is detected;
Fire extinguishing means for emitting fire extinguishing gas based on the output of the first signal of the sensor;
A plurality of nozzles for discharging at least a part of the fire extinguishing gas to any of the plurality of batteries and the control unit;
With
Each of the plurality of batteries and the control unit is set as at least one discharge destination of the plurality of nozzles. 前記複数のセンサから前記第一の信号として火災感知信号を各々受け、前記消火手段に放出を指示する第二の信号を出力する制御部を更に有し、
前記消火手段は、前記制御部から前記第二の信号を受け消火ガスを放出する、
ことを特徴とする請求項１記載の蓄電装置の消火システム。 A control unit that receives a fire detection signal as the first signal from the plurality of sensors, and outputs a second signal that instructs the fire extinguishing means to release;
The fire extinguishing means receives the second signal from the control unit and releases a fire extinguishing gas.
The fire extinguishing system for a power storage device according to claim 1. 前記制御部は、複数の前記センサのうちの前記火災感知信号を出力したセンサに対応する前記ノズルへ導かれる前記消火手段が放出したガスの通路を開かせ、前記ノズルに前記消火ガスを放出させる、
ことを特徴とする請求項２記載の蓄電装置の消火システム。 The control unit opens a passage of the gas released by the fire extinguishing means guided to the nozzle corresponding to the sensor that outputs the fire detection signal among the plurality of sensors, and causes the nozzle to release the fire extinguishing gas. ,
The fire extinguishing system for a power storage device according to claim 2. 前記制御ユニットは、電圧モニタラインで前記電池の電極に接続し、前記電池の電圧をモニタして充電量を常時監視する、
ことを特徴とする請求項１、２又は３記載の蓄電装置の消火システム。 The control unit is connected to the battery electrode through a voltage monitor line, and monitors the voltage of the battery to constantly monitor the charge amount.
The fire extinguishing system for a power storage device according to claim 1, 2, or 3. 前記消火ガスは二酸化炭素を含む不活性ガスである、ことを特徴とする請求項１、２、３又は４記載の蓄電装置の消火システム。   The fire extinguishing system for a power storage device according to claim 1, wherein the fire extinguishing gas is an inert gas containing carbon dioxide. 前記消火手段はパイプにより複数の前記ノズルと接続する、ことを特徴とする請求項１、２、３、４又は５記載の蓄電装置の消火システム。   6. The fire extinguishing system for a power storage device according to claim 1, wherein the fire extinguishing means is connected to the plurality of nozzles by pipes. 複数の電池と該複数の電池と接続し充電量を監視する制御ユニットとから火災を感知し、
火災の感知に基づき、消火ガスを放出し、
前記複数の電池と前記制御ユニットの各々が、前記消火ガスのうち少なくとも一部を、前記複数の電池と前記制御ユニットのいずれかへ放出する前記複数のノズルの少なくとも１つの放出先に設定されていることを特徴とする蓄電装置の消火方法。 Detecting a fire from a plurality of batteries and a control unit connected to the plurality of batteries and monitoring the amount of charge,
Based on fire detection, release fire extinguishing gas,
Each of the plurality of batteries and the control unit is set to at least one discharge destination of the plurality of nozzles that discharges at least a part of the fire extinguishing gas to any of the plurality of batteries and the control unit. A method for extinguishing a power storage device, comprising: 火災の感知に基づき、複数の前記電池と、前記制御ユニットのうちの火災を感知したものへ放出する、
ことを特徴とする請求項７記載の蓄電装置の消火方法。 Based on the detection of fire, discharge to a plurality of the batteries and the control unit that detected the fire,
The fire extinguishing method for a power storage device according to claim 7. 前記制御ユニットは、電圧モニタラインで前記電池の電極に接続し、前記電池の電圧をモニタして充電量を常時監視する、
ことを特徴とする請求項７又は８記載の蓄電装置の消火方法。 The control unit is connected to the battery electrode through a voltage monitor line, and monitors the voltage of the battery to constantly monitor the charge amount.
The fire extinguishing method for a power storage device according to claim 7 or 8. 前記消火ガスは二酸化炭素を含む不活性ガスである、ことを特徴とする請求項７、８又は９記載の蓄電装置の消火方法。   The fire extinguishing method for a power storage device according to claim 7, wherein the fire extinguishing gas is an inert gas containing carbon dioxide.
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