Battery equipment room fire extinguishing system

Abstract

To provide a fire extinguishing system and a fire extinguishing method for a rechargeable battery facility capable of preventing erroneous reporting and malfunction, and starting a fire extinguishing operation quickly.SOLUTION: A fire extinguishing system for detecting and extinguishing a fire in a rechargeable battery facility room having a plurality of rechargeable batteries for supplying power to the outside includes: a temperature sensor for detecting the temperature of the rechargeable batteries; a smoke sensor for detecting smoke in the rechargeable battery facility room; a fire extinguishing agent storage discharge device for discharging a fire extinguishing agent into the rechargeable battery facility room; and a fire extinguisher control board for controlling the fire extinguishing agent storage discharge device so as to extinguish a fire in the rechargeable battery facility room on the basis of the temperature detected by the temperature sensor and the smoke detected by the smoke sensor.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention provides a fire extinguishing device for a battery storage room that is equipped with a plurality of battery units such as secondary batteries and supplies power to the outside. Fire extinguishing system It is related to. [Background technology]

[0002] Conventionally, in battery equipment rooms that are equipped with multiple storage battery units such as secondary batteries and supply power to the outside, detectors such as smoke detectors are installed on the ceiling of the battery equipment room, and a fire extinguishing system is installed that detects the occurrence of a fire by detecting smoke when a fire breaks out from the batteries and performs fire extinguishing action.

[0003] There, security guards and other personnel are always on hand to determine whether a human is causing a fire based on fire signals from detectors and surveillance camera images, and then either manually release fire extinguishing agents or have the security guards take fire extinguishers directly to the area where the fire signal was detected to carry out initial fire extinguishing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2020-198962 [Patent Document 2] Japanese Patent Publication No. 2020-205717 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, conventional fire extinguishing systems for battery equipment rooms require personnel such as security guards to be stationed at all times, resulting in high costs.

[0006] In addition, battery storage equipment rooms using lithium-ion (Li-ion) batteries are equipped with a vent function to prevent flammable gases from accumulating or exploding inside the batteries in the event of an increased risk of fire due to thermal runaway or other reasons.

[0007] Conventional smoke detectors are prone to mistaking the flammable gas released from inside the battery into the battery equipment room through this vent for smoke from a fire, which can lead to malfunctions such as false alarms and false emissions.

[0008] Furthermore, in conventional battery equipment rooms, gas fire extinguishing equipment is installed because it is the most suitable for use with electrical equipment and does not pose a risk of electrical leakage when extinguishing a fire.

[0009] However, there is a high possibility that personnel will approach the fire scene to carry out initial fire extinguishing using fire extinguishers or to check the scene, and gas used as a fire extinguishing agent can have adverse effects on the human body, such as suffocation and poisoning, like carbon dioxide, so it is necessary to evacuate personnel before the fire extinguishing gas is released.

[0010] For this reason, security guards and others make sure that there are no personnel at the fire scene, which means that it takes time for the fire extinguishing equipment to release the extinguishing agent, which ultimately reduces the initial success rate of the fire extinguishing equipment.

[0011] The present invention has been made in consideration of the above problems, and its purpose is to provide a system that can quickly and appropriately respond to fires while reducing false alarms and false activations. Fire extinguishing system The purpose is to provide [Means for solving the problem]

[0012] A first invention is a fire extinguishing system that detects and extinguishes a fire in a battery equipment room that has a plurality of storage battery units equipped therein and supplies power to the outside, and that includes temperature detection means that detects the temperature of the storage batteries, status detection means that detects the status inside the battery equipment room, fire extinguishing agent storage and discharge means that discharges a fire extinguishing agent into the battery equipment room, fire extinguishing operation control means that controls the fire extinguishing agent storage and discharge means to extinguish the fire in the battery equipment room based on the temperature detected by the temperature detection means and the status inside the battery equipment room detected by the status detection means, and a monitoring camera that captures images of the storage battery units displayed on a monitoring monitor provided in a central control room. the state detection means comprises a smoke detector that detects smoke in the battery equipment room to detect a fire, the temperature detection means comprises a temperature sensor that detects whether the temperature of the battery exceeds a predetermined threshold, the predetermined threshold comprising a first threshold and a second threshold that is greater than the first threshold, and only when the temperature sensor detects a value that exceeds the second threshold, the fire extinguishing operation control means controls the fire extinguishing agent storing and discharging means to discharge the fire extinguishing agent into the battery equipment room, and the device further comprises a display means, and a state in which the smoke detector does not detect smoke in the battery equipment room is displayed. When the temperature sensor detects a value exceeding a first threshold, a predetermined abnormality display is displayed on the display means; when the temperature sensor detects a value not exceeding the first threshold while the smoke detector is detecting smoke in the battery equipment room, a first caution display is displayed on the display means; when the temperature sensor detects a value exceeding the first threshold while the smoke detector is detecting smoke in the battery equipment room, a second caution display is displayed on the display means, the first caution display comprising a caution display of "beware of smoke generation" and the second caution display comprising a caution display of "vent gas detection." This is a fire extinguishing system that features:

[0013] A second invention is a fire extinguishing system that detects and extinguishes a fire in a battery equipment room that has a plurality of storage battery units equipped therein and supplies power to the outside, and that includes temperature detection means that detects the temperature of the storage batteries, status detection means that detects the status inside the battery equipment room, fire extinguishing agent storage and discharge means that discharges a fire extinguishing agent into the battery equipment room, fire extinguishing operation control means that controls the fire extinguishing agent storage and discharge means to extinguish the fire in the battery equipment room based on the temperature detected by the temperature detection means and the status inside the battery equipment room detected by the status detection means, and a monitoring camera that takes images of the storage battery units displayed on a monitoring monitor provided in a central control room. the state detection means comprises a smoke detector that detects smoke in the battery equipment room to detect a fire, the temperature detection means comprises a temperature sensor that detects whether the temperature of the battery exceeds a predetermined threshold, the predetermined threshold comprising a first threshold and a second threshold that is greater than the first threshold, and the system further comprises a display means, wherein if the temperature sensor detects a value exceeding the first threshold while the smoke detector is not detecting smoke in the battery equipment room, a predetermined abnormality display is displayed on the display means, if the temperature sensor detects a value that does not exceed the first threshold while the smoke detector is detecting smoke in the battery equipment room, a first caution display is displayed on the display means, and if the temperature sensor detects a value exceeding the first threshold while the smoke detector is detecting smoke in the battery equipment room, a second caution display is displayed on the display means, the first caution display comprising a caution display that warns of smoke generation, and the second caution display comprising a caution display that vent gas has been detected. It is a fire extinguishing system. [Effects of the Invention]

[0027] According to the present invention, it is possible to obtain effects such as reducing false alarms and false activations while responding to fires quickly and appropriately. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a schematic configuration diagram of a battery equipment room in which an embodiment of a fire extinguishing system according to the present invention is installed. [Figure 2] FIG. 2 is a schematic configuration diagram of the battery equipment room 3 shown in FIG. [Figure 3] FIG. 2 is a configuration block diagram of a storage battery unit 1 and a storage battery control panel 11. [Figure 4] FIG. 1 is a block diagram of the configuration of a fire extinguishing device control panel 17 in the central control room 5. [Figure 5] 2 is a flowchart of a fire extinguishing method by the fire extinguishing system 21 shown in FIG. [Figure 6] FIG. 10 is an operation matrix diagram of the fire extinguishing system 21 in the battery equipment room. DETAILED DESCRIPTION OF THE INVENTION

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0030] A feature of the present invention is that not only the fire signal from the smoke detector but also the temperature information of the storage battery is used to determine whether a fire has occurred.

[0031] This will enable quicker and more efficient response to fires while reducing false alarms and false alarms.

[0032] FIG. 1 is a schematic diagram of a battery equipment room in which an embodiment of a fire extinguishing system according to the present invention is installed.

[0033] As shown in Figure 1, there is a battery equipment room 3 that is equipped with multiple battery units 1 such as secondary batteries and supplies power to the outside, and a central control room 5 for a fire extinguishing system that detects and extinguishes fires in the battery equipment room 3.A fire extinguishing agent storage and release device (fire extinguishing agent storage and release means) 7 is provided between the battery equipment room 3 and the central control room 5.

[0034] The battery equipment room 3 is provided with a battery unit 1, a monitoring camera 8, a temperature sensor (temperature detection means) 9, a battery control panel 11, an automatic closing device 13, and a smoke detector (status detection means) 15.

[0035] The battery control panel 11 controls the charging and discharging of the battery unit 1, and also controls a vent function that releases flammable gas accumulated inside the battery 1a to the outside of the battery equipment room 3.

[0036] In the central control room 5, a fire extinguishing device control panel (fire extinguishing operation control means) 17 and a monitoring monitor 18 are provided.

[0037] In one embodiment of this fire extinguishing system, the fire extinguishing system 21 includes a central control room 5, a fire extinguishing agent storage and release device 7, a surveillance camera 8, a temperature sensor 9, a battery control panel 11, an automatic closing device 13, and a smoke detector 15, as shown in FIG.

[0038] The battery equipment room 3 and the central control room 5 are usually located within a building, and may be located in separate buildings or in the same building.

[0039] FIG. 2 is a schematic diagram of the battery equipment room 3 shown in FIG.

[0040] As shown in Figure 2, in the battery equipment room 3, a battery control panel 11 is connected to each of multiple (two in this embodiment) battery units 1, and each battery control panel 11 is connected to a fire extinguishing device control panel 17 in the central management room 5.

[0041] The fire extinguishing agent storage and discharge device 7 is connected to the fire extinguishing device control panel 17, and based on a fire extinguishing control signal from the fire extinguishing device control panel 17, the fire extinguishing agent in the fire extinguishing agent storage and discharge device 7 is discharged into the battery equipment room 3 from the agent discharge port 19 in the battery equipment room 3.

[0042] The extinguishing agent used here is carbon dioxide, nitrogen, IG-55, IG-541, or a halide gas. The extinguishing gas also has a cooling effect due to the pressure drop when released, which cools the storage battery 1a and prevents thermal runaway.

[0043] In addition, the battery equipment room 3 is provided with a vent function that releases flammable gas accumulated inside the battery 1a to the outside of the battery equipment room 3.

[0044] FIG. 3 is a configuration block diagram of the storage battery unit 1 and the storage battery control panel 11.

[0045] As shown in Figure 3, the storage battery unit 1 is equipped with multiple storage batteries 1a, each storage battery 1a is provided with a temperature sensor 9, and each temperature sensor 9 is connected to a measurement value output device 23, which inputs a temperature signal from each temperature sensor 9.

[0046] The battery control panel 11 has a first control unit 25, to which a charge / discharge control device 27, a first signal output device 29, and a display device (display means) 31 are connected.

[0047] The first control unit 25 receives the measurement value output from the measurement value output device 23 of the storage battery unit 1, and outputs a control signal from the first control unit 25 to the charge / discharge control device 27, signal output device 29, and display device 31.The first control unit 25 controls the charge / discharge of the storage battery unit 1 and also controls the vent function that releases flammable gas accumulated inside the storage battery 1a to the outside of the storage battery equipment room 3.

[0048] The first control unit 25 is usually configured with a CPU, RAM, ROM, etc., and outputs a control signal based on a control program stored in the ROM.

[0049] The charge / discharge control device 27 sends a charge / discharge command signal to the storage battery unit 1, and the first signal output device 29 sends a battery abnormality signal to the fire extinguisher control panel 17.

[0050] FIG. 4 is a block diagram of the fire extinguishing device control panel 17 in the central control room 5. As shown in FIG.

[0051] As shown in FIG. 4, the fire extinguisher control panel 17 has a second control section (fire extinguishing operation control means) 33, to which the smoke detector 15 and the storage battery control panel 11 are connected.

[0052] Furthermore, the second control unit 33 is adapted to receive a manual emergency stop signal or a manual start signal from an administrator 35 (see FIG. 1) who is watching the monitoring monitor 18 .

[0053] The second control unit 33 performs the display operation and fire extinguishing operation as described below with reference to the flowchart of FIG.

[0054] The second control unit 33 is also generally configured with a CPU, RAM, ROM, etc., and outputs a control signal based on a control program stored in the ROM.

[0055] The fire extinguisher control panel 17 further includes a second signal output device 36 connected to the second control unit 33, a first sound device 37, and a first display device (display means) 39.

[0056] The second signal output device 36 is connected to the automatic closing section 41 of the automatic closing device 13, the second sound device 43, and the second display device 45, as well as to the activation device 47 of the fire extinguishing agent storage and release device 7.

[0057] In the fire extinguishing agent storage and discharge device 7, the starting device 47 is connected to a container valve 51 of the fire extinguishing agent storage container 49.

[0058] Furthermore, the fire extinguisher control panel 17 is provided with an emergency stop device 40 connected to the second control unit 33, so that the operation of the fire extinguisher can be manually stopped by a manual emergency stop signal.

[0059] In this embodiment, the smoke detector 15 is used to detect a fire, but a heat detector may be used instead, or a smoke detector and a heat detector may be used in combination.

[0060] In addition, in this embodiment, in the event of an increased risk of fire due to thermal runaway or the like in the storage battery unit 1, in order to prevent the accumulation or explosion of flammable gas inside the storage battery 1a, a vent function (not shown) is provided to release the accumulated flammable gas to the outside of the storage battery equipment room 3.

[0061] In addition, in this embodiment, when the fire extinguisher control panel 17 performs a fire extinguishing operation upon receiving a fire signal from the smoke detector 15, the panel has an accumulation function that holds the fire signal for a certain period of time, resets the detector once when a fire signal is received from the smoke detector 15, and issues an alarm upon a second signal. This is a function to prevent malfunction.

[0062] FIG. 5 is a flowchart of a fire extinguishing method by the fire extinguishing system 21 shown in FIG.

[0063] Figure 6 is an operation matrix diagram of the fire extinguishing system in the battery equipment room.

[0064] In step 101 of Figure 5, when the storage battery unit 1 is operating normally in the storage battery equipment room 3, if the monitoring state by the fire extinguishing system of the storage battery equipment room 3 shown in Figure 1 is initiated, it is determined in step 103 whether or not there is a fire signal from the smoke detector 15.

[0065] That is, an operation signal from the smoke detector 15, which is a status detection means for detecting the status inside the battery equipment room 3, is input to the second control unit 33 of the fire extinguishing device control panel 17, and the second control unit 33 determines whether or not there is a fire signal from the smoke detector 15.

[0066] If there is no fire signal from the smoke detector 15 in step 103, the temperature of the storage battery unit 1 is detected in step 105, and it is determined whether the temperature of the storage battery unit 1 exceeds a predetermined first threshold or a predetermined second threshold.

[0067] That is, the temperature of each storage battery 1a is detected by a temperature sensor 9 provided in each storage battery 1a of the storage battery unit 1, and the detected temperature information is input to the first control unit 25 of the storage battery control panel 11 via the measurement value output device 23, and the temperature information is transferred to the second control unit 33 of the fire extinguishing device control panel 17.

[0068] Then, the second control unit 33 determines whether or not the temperature information from the first control unit 25 exceeds the first threshold value or a second threshold value that is larger than the first threshold value.

[0069] Here, the first threshold is set to a temperature at which the storage battery 1a can be cooled if the load is removed, but is considered to be overloaded. The first threshold is selected from a range of 150°C to 200°C, and in this embodiment, is set to approximately 200°C.

[0070] The second threshold is set to a temperature at which cooling is not expected even if the load is removed from the storage battery 1a. The second threshold is selected from a range of 250°C to 400°C, and is set to approximately 400°C in this embodiment.

[0071] If it is determined in step 105 above that the temperature of the storage battery unit 1 exceeds the predetermined first threshold, then in step 107, it is determined that each storage battery 1a has reached the end of its battery life or has failed, as shown in A of FIG.

[0072] That is, when the second control unit 33 determines that the temperature information from the first control unit 25 exceeds the first threshold, the second control unit 33 determines that the battery life or failure of each storage battery 1a has ended, and determines that the risk of fire is low, and in step 109, the fire extinguishing operation is put on hold.

[0073] Here, first control unit 25 of storage battery control panel 11 displays a predetermined abnormality on display device 31. This predetermined abnormality display may be, for example, a message saying "battery life end or battery failure."

[0074] Furthermore, if the address of each storage battery 1a is set in the temperature information from the first control unit 25, the location of the abnormal storage battery can be quickly determined from the fire extinguishing equipment control panel 17, which will speed up on-site confirmation and shorten the time it takes to spray the fire extinguishing agent.

[0075] If there is no fire signal from the smoke detector 15 in step 103 above, and if it is determined in step 105 that the temperature of the storage battery unit 1 exceeds the predetermined second threshold, then as shown in B of Figure 6, it is determined in step 111 that a fire has occurred, a confirmation operation is performed by the surveillance camera 8 in step 112, and a fire extinguishing operation is initiated in step 113.

[0076] In other words, when the second control unit 33 of the fire extinguisher control panel 17 determines that the temperature information from the first control unit 25 exceeds the second threshold, even if there is no fire signal from the smoke detector 15, the second control unit 33 determines that a fire has occurred and starts fire extinguishing operations after a confirmation operation is performed by the surveillance camera 8.

[0077] As shown in Figure 1, the confirmation operation involves sending a video signal of the storage battery unit 1 from the surveillance camera 8 to the fire extinguishing device control panel 17 via the storage battery control panel 11, and displaying the video on the surveillance monitor 18 by the fire extinguishing device control panel 17 within the central control room 5, whereupon the manager 35 within the central control room 5 views and confirms the video of the storage battery unit 1.

[0078] For the fire extinguishing operation, the second control unit 33 controls the first acoustic device 37 and the first display device (display means) 39 to issue an audio and visual fire alarm, and also controls the fire extinguishing agent storage and release device 7 to release the fire extinguishing agent from the fire extinguishing agent release port 19 to the storage battery unit 1.

[0079] That is, based on a control signal from the second control unit 33, the automatic closing unit 41 of the automatic closing device 13 in Fig. 4 closes the battery equipment room 3, and a fire or gas discharge is alerted by the second sound device 43 and the second display device (display means) 45. After the closure of the battery equipment room 3 is completed, the activation device 47 of the fire extinguishing agent storage and discharge device 7 in Fig. 4 is activated based on a control signal from the second control unit 33, the activation device 47 opens the container valve 51, and the fire extinguishing agent is discharged from the fire extinguishing agent storage container 49 to the battery unit 1 via the fire extinguishing agent discharge port 19.

[0080] Furthermore, prior to the fire extinguishing operation in step 113, in step 112, the manager 35 checks using the surveillance camera 8, so that it can be confirmed whether or not security guards or the like are at the fire scene to carry out initial fire extinguishing or to check the scene, thereby ensuring safety.

[0081] In other words, if a security guard or other person is identified at the fire scene within the protected area during confirmation operations using the surveillance camera 8, or if it is determined to be an obvious false alarm, the manager 35 will input a manual emergency stop signal to the fire extinguisher control panel 17 to activate the emergency stop device 40 and prevent the fire from proceeding to extinguishing operations.

[0082] That is, when the emergency stop device 40 is activated, an emergency stop signal is sent from the emergency stop device 40 to the fire extinguishing agent storage and release device 7 via the second signal output device 36, and the start-up operation of the start-up device 47 is stopped, thereby closing the container valve 51 and stopping the release of the fire extinguishing agent from the fire extinguishing agent storage container 49.

[0083] In order to make the emergency stop device 40 less likely to be operated by mistake, a display indicating that the device will stop operation and other measures to prevent erroneous operation may be provided.

[0084] Furthermore, by having the manager 35 check using the monitoring camera 8, the following effects can be obtained.

[0085] That is, in the past, it took time for the fire extinguishing equipment to release the extinguishing agent in order to confirm that there were no personnel at the fire scene, which resulted in a lower initial fire extinguishing success rate for the fire extinguishing equipment, but since the manager 35 checks using the monitoring monitor 18 in the central control room 5, the checking can be done quickly and the time it takes for the fire extinguishing equipment to release the extinguishing agent can be shortened.

[0086] In this case, the fire extinguishing operation is carried out when there is no fire signal from the smoke detector 15.

[0087] Therefore, there is no delay due to the accumulation function that occurs when the fire extinguishing device control panel 17 receives a fire signal from the smoke detector 15 and performs a fire extinguishing operation, and the fire extinguishing operation can be performed quickly.

[0088] If it is determined in step 105 that the temperature of the storage battery unit 1 does not exceed the predetermined first threshold, the monitoring state is maintained.

[0089] Next, if the smoke detector 15 is activated in step 103 and a fire signal is received from the smoke detector 15, the temperature of the storage battery unit 1 is detected in step 115, similar to step 105, and it is determined whether the temperature of the storage battery unit 1 exceeds a predetermined first threshold or a predetermined second threshold.

[0090] That is, the temperature of each storage battery 1a is detected by a temperature sensor 9 provided in each storage battery 1a of the storage battery unit 1, and the detected temperature information is input to the first control unit 25 of the storage battery control panel 11 via the measurement value output device 23, and the temperature information is transferred to the second control unit 33.

[0091] Then, the second control unit 33 determines whether or not the temperature information from the first control unit 25 exceeds the first threshold value or a predetermined second threshold value.

[0092] Here, the first threshold is set to a temperature at which the storage battery 1a can be cooled if the load is removed, but is considered to be overloaded. The first threshold is selected from a range of 150°C to 200°C, and in this embodiment, is set to approximately 200°C.

[0093] The second threshold is set to a temperature at which cooling is not expected even if the load is removed from the storage battery 1a. The second threshold is selected from a range of 250°C to 400°C, and is set to approximately 400°C in this embodiment.

[0094] If it is determined in step 115 above that the temperature of the storage battery unit 1 does not exceed the predetermined first threshold, a first warning message is displayed in step 117, as shown in C of FIG.

[0095] That is, the second control unit 33 of the fire extinguisher control panel 17, which receives a fire signal from the smoke detector 15, displays a first warning message on the first display device (display means) 39. This first warning message displays, for example, "Caution: Smoke."

[0096] If the smoke detector 15 is activated in step 103 and a fire signal is received from the smoke detector 15, and if it is determined in step 115 that the temperature of the battery unit 1 exceeds a predetermined first threshold, then in step 118, a vent operation is assumed to release the flammable gas accumulated inside the battery 1a into the battery equipment room 3, and in step 119, as shown in D of Figure 6, it is determined that the smoke detector 15 has detected vent gas, and a second warning message is displayed.

[0097] That is, the second control unit 33 of the fire extinguisher control panel 17, which receives a fire signal from the smoke detector 15, displays a second warning message on the first display device (display means) 39, indicating that vent gas has been detected. This second warning message may read, for example, "Vent gas detected."

[0098] This is because even if the smoke detector 15 is activated and a fire signal is received from the smoke detector 15, if the temperature information from the first control unit 25 is between the first threshold and the second threshold, it is assumed that what is detected by the smoke detector 15 is not smoke caused by a fire, but gas released from the storage battery 1a into the storage battery equipment room 3 due to vent operation.

[0099] This second warning display reliably indicates that the vent function is causing the flammable gas accumulated inside the storage battery 1a to escape into the storage battery equipment room 3.

[0100] At this stage, it is not determined that a fire has occurred, and no fire-extinguishing operation is initiated.

[0101] Therefore, unlike the conventional case, the smoke detector will no longer mistake the flammable gas released through the vent for smoke caused by a fire, resulting in malfunctions such as false alarms and false emissions.

[0102] If the smoke detector 15 is activated in step 103 and a fire signal is received from the smoke detector 15, and if it is determined in step 115 that the temperature of the storage battery unit 1 exceeds a predetermined second threshold, then as shown in E of Figure 6, it is determined in step 111 that a fire has occurred, a confirmation operation is performed by the surveillance camera 8 in step 112, and a fire extinguishing operation is initiated in step 113.

[0103] In other words, when the second control unit 33 of the fire extinguisher control panel 17 determines that the temperature information from the first control unit 25 exceeds the second threshold, even if there is no fire signal from the smoke detector 15, the second control unit 33 determines that a fire has occurred and starts fire extinguishing operations after a confirmation operation is performed by the surveillance camera 8.

[0104] As shown in Figure 1, the confirmation operation involves sending a video signal of the storage battery unit 1 from the surveillance camera 8 to the fire extinguishing device control panel 17 via the storage battery control panel 11, and displaying the video on the surveillance monitor 18 by the fire extinguishing device control panel 17 within the central control room 5, whereupon the manager 35 within the central control room 5 views and confirms the video of the storage battery unit 1.

[0105] For the fire extinguishing operation, the second control unit 33 controls the first acoustic device 37 and the first display device (display means) 39 to issue an audio and visual fire alarm, and also controls the fire extinguishing agent storage and release device 7 to release the fire extinguishing agent from the fire extinguishing agent release port 19 to the storage battery unit 1.

[0106] That is, based on a control signal from the second control unit 33, the automatic closing unit 41 of the automatic closing device 13 in Fig. 4 closes the battery equipment room 3, and a fire or gas discharge is alerted by the second sound device 43 and the second display device (display means) 45. After the closure of the battery equipment room 3 is completed, the activation device 47 of the fire extinguishing agent storage and discharge device 7 in Fig. 4 is activated based on a control signal from the second control unit 33, the activation device 47 opens the container valve 51, and the fire extinguishing agent is discharged from the fire extinguishing agent storage container 49 to the battery unit 1 via the fire extinguishing agent discharge port 19.

[0107] Furthermore, prior to the fire extinguishing operation in step 113, in step 112, the manager 35 checks using the surveillance camera 8, so that it can be confirmed whether or not security guards or the like are present at the fire scene to carry out initial fire extinguishing or to check the scene, thereby ensuring safety.

[0108] In other words, if a security guard or other person is identified at the fire scene within the protected area during confirmation operations using the surveillance camera 8, or if it is determined to be an obvious false alarm, the manager 35 will input a manual emergency stop signal to the fire extinguisher control panel 17 to activate the emergency stop device 40 and prevent the fire from proceeding to extinguishing operations.

[0109] In order to make the emergency stop device 40 less likely to be operated by mistake, a display indicating that the device will stop operation and other measures to prevent erroneous operation may be provided.

[0110] Furthermore, by having the manager 35 check using the monitoring camera 8, the following effects can be obtained.

[0111] That is, in the past, it took time for the fire extinguishing equipment to release the extinguishing agent in order to confirm that there were no personnel at the fire scene, which resulted in a lower initial fire extinguishing success rate for the fire extinguishing equipment, but since the manager 35 checks using the monitoring monitor 18 in the central control room 5, the checking can be done quickly and the time it takes for the fire extinguishing equipment to release the extinguishing agent can be shortened.

[0112] In this case, the fire extinguishing operation is carried out when there is no fire signal from the smoke detector 15.

[0113] Therefore, there is no delay due to the accumulation function that occurs when the fire extinguishing device control panel 17 receives a fire signal from the smoke detector 15 and performs a fire extinguishing operation, and the fire extinguishing operation can be performed quickly.

[0114] In the state shown in FIG. 6E, the smoke detector 15 is not reset.

[0115] The smoke detector 15 is reset after a certain period of time and its status is checked.

[0116] That is, it has a storage function that resets the detector once when a fire signal is received from the smoke detector 15, and issues an alarm when the second signal is received. This is a function to prevent malfunction.

[0117] The rightmost column in FIG. 6 shows the reset state of the smoke detector 15.

[0118] That is, if the first threshold is not exceeded, as shown in F of Figure 6, if it is inactive after resetting, it will return to the monitoring state, and if it is active again after resetting, as shown in G of Figure 6, it will assume that there is a source of fire other than the storage battery or a malfunction in the measuring equipment, and will start fire extinguishing operations.

[0119] Furthermore, when the first threshold is exceeded, if the alarm is not activated after resetting, as shown in H of FIG. 6, the state returns to monitoring, and if the alarm is activated again after resetting, as shown in I of FIG. 6, the second warning message continues to be displayed.

[0120] As described above, according to the embodiment of the present invention, the temperature signal from the temperature sensor 9 provided in each storage battery 1a of the storage battery unit 1 and the fire signal from the smoke detector 15 are comprehensively judged, and predetermined warning and fire indications and fire extinguishing operations are carried out.

[0121] In other words, not only the fire signal from the smoke detector but also the temperature signal from the battery control panel is used to determine whether a fire has occurred.

[0122] This will enable quick and effective response to fires while reducing false alarms and malfunctions.

[0123] By applying this invention to a battery equipment room with a high ceiling, even if it takes time for the detector to detect a fire, the fire extinguishing device can be activated at a relatively earlier stage than the detector is activated.

[0124] The battery equipment room 3 does not have to be a building that houses the battery units 1. For example, if it is an outdoor cabinet that covers the battery units 1, the process may proceed to the fire-extinguishing operation in step 113 without checking with the surveillance camera 8 in step 112. Alternatively, if it is clear that no personnel are present in the battery equipment room, the process may proceed to the fire-extinguishing operation in step 113 without checking with the surveillance camera in step 112.

[0125] Furthermore, even if a fire extinguishing agent such as IG-541 is released into the battery equipment room 3, if the personnel in the room are able to breathe, the fire extinguishing operation in step 113 may be carried out without checking with the surveillance camera 8 in step 112.

[0126] If the battery equipment room 3 is an outdoor cabinet that covers the battery unit 1, the surveillance camera 8 may be positioned to monitor the cabinet from outside, and the displayed image of the cabinet may be viewed and confirmed by an administrator 35 in the central control room 5.

[0127] The storage battery of the storage battery unit 1 may be a large-volume, large-capacity secondary battery including a lithium-ion battery, and a similar fire extinguishing device, fire extinguishing system, and fire extinguishing method can be applied.

[0128] The present invention is not limited to the above-described embodiments of the invention, but can be embodied in other forms by making appropriate modifications. [Explanation of symbols]

[0129] 1...Battery unit 3...Battery equipment room 5…Central control room 7...Fire extinguishing agent storage and release device (fire extinguishing agent storage and release means) 8...Surveillance camera 9...Temperature sensor (temperature detection means) 11...Battery control panel 13...Automatic closing device 15...Smoke detector (status detection means) 17...Fire extinguishing device control panel (fire extinguishing operation control means) 18...Monitor 21...Fire extinguishing system 23...Measurement value output device 25...First control section 27...Charge / discharge control device 29...First signal output device 31…Display equipment 33...Second control section 35…Administrator 36...Second signal output device 37...First sound device 39...First display device 41...Automatic closing section 43...Second sound device 45...Second display device 47…Starting device 49...Fire extinguishing agent storage container 51...Container valve

Claims

1. A fire extinguishing system that detects and extinguishes a fire in a battery equipment room that has a plurality of battery units equipped with storage batteries inside and supplies power to the outside, a temperature detection means for detecting the temperature of the storage battery; a state detection means for detecting a state inside the battery equipment room; a fire extinguishing agent storage and discharge means for discharging a fire extinguishing agent into the battery equipment room; a fire extinguishing operation control means for controlling the fire extinguishing agent storing and discharging means so as to extinguish the fire in the battery equipment room, based on the temperature detected by the temperature detection means and the state inside the battery equipment room detected by the state detection means; a monitoring camera that captures an image of the storage battery unit and displays it on a monitoring monitor installed in a central control room; Equipped with the state detection means comprises a smoke detector that detects smoke in the battery equipment room to detect a fire, the temperature detection means comprises a temperature sensor for detecting whether the temperature of the storage battery exceeds a predetermined threshold; the predetermined threshold value includes a first threshold value and a second threshold value that is greater than the first threshold value; the fire extinguishing operation control means controls the fire extinguishing agent storage and discharge means to discharge the fire extinguishing agent into the battery equipment room only when the temperature sensor detects a value exceeding a second threshold value; The system further includes a display means, and when the temperature sensor detects a value exceeding a first threshold value while the smoke detector does not detect smoke in the battery equipment room, a predetermined abnormality is displayed on the display means, When the smoke detector detects smoke in the battery equipment room and the temperature sensor detects a value that does not exceed a first threshold value, a first warning message is displayed on the display means, When the smoke detector detects smoke in the battery equipment room and the temperature sensor detects a value exceeding a first threshold value, a second warning message is displayed on the display means, A fire extinguishing system, wherein the first warning sign comprises a warning sign saying "Be careful of smoke generation," and the second warning sign comprises a warning sign saying "vent gas detection."

2. A fire extinguishing system that detects and extinguishes a fire in a battery equipment room that has a plurality of battery units equipped with storage batteries inside and supplies power to the outside, a temperature detection means for detecting the temperature of the storage battery; a state detection means for detecting a state inside the battery equipment room; a fire extinguishing agent storage and discharge means for discharging a fire extinguishing agent into the battery equipment room; a fire extinguishing operation control means for controlling the fire extinguishing agent storing and discharging means so as to extinguish the fire in the battery equipment room, based on the temperature detected by the temperature detection means and the state inside the battery equipment room detected by the state detection means; a monitoring camera that captures an image of the storage battery unit and displays it on a monitoring monitor installed in a central control room; Equipped with the state detection means comprises a smoke detector that detects smoke in the battery equipment room to detect a fire, the temperature detection means comprises a temperature sensor that detects whether the temperature of the battery exceeds a predetermined threshold, the predetermined threshold value includes a first threshold value and a second threshold value that is greater than the first threshold value; The system further includes a display means, and when the temperature sensor detects a value exceeding a first threshold value while the smoke detector does not detect smoke in the battery equipment room, a predetermined abnormality is displayed on the display means, When the smoke detector detects smoke in the battery equipment room and the temperature sensor detects a value that does not exceed a first threshold value, a first warning message is displayed on the display means, When the smoke detector detects smoke in the battery equipment room and the temperature sensor detects a value exceeding a first threshold value, a second warning message is displayed on the display means, A fire extinguishing system in which the first warning sign comprises a warning sign saying "be careful of smoke generation" and the second warning sign comprises a warning sign saying "vent gas detected."

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