Fire behavior control system for battery cell storage warehouse

Abstract

The embodiment of the utility model provides a fire behavior control system for a battery cell storage warehouse. The fire behavior control system comprises a storage shelf, a temperature measurement assembly, a transfer mechanism and a fire extinguishing device, goods locations are arranged on the storage shelves and used for placing battery cells, and the fire extinguishing devices and the storage shelves are arranged at intervals. The temperature measurement assembly comprises a temperature measurement host and temperature measurement optical fibers, the temperature measurement host is arranged outside the storage shelf, one end of each temperature measurement optical fiber is connected to the temperature measurement host, the other end of each temperature measurement optical fiber is connected to the corresponding goods location, and the temperature measurement host monitors the temperature of the cells through the temperature measurement optical fibers and sends indication signals to the transfer mechanism; the transfer mechanism is movably connected between the storage shelf and the fire extinguishing device and is used for transferring the battery cells to the fire extinguishing device according to the indication signals, and the fire extinguishing device is used for performing fire extinguishing operation on the battery cells. According to the embodiment of the invention, the fire behavior of the battery cell storage warehouse can be accurately monitored and timely fed back to extinguish fire, the fire extinguishing treatment effect is good, and personnel and property losses caused by thermal runaway of the battery cells can be effectively reduced.

Description

Technical Field

[0001] This application belongs to the technical field of batteries, and particularly relates to a fire control system for a core storage warehouse. Background Art

[0002] With the development of new energy battery technology, various batteries have been widely used in various fields of production and life. Thermal runaway during battery storage can cause varying degrees of personal and property losses. Therefore, it is extremely important to ensure the safety of batteries during storage.

[0003] In related technologies, the fire monitoring system used in the core storage warehouse for storing cores has a low degree of intelligence and poor warning effect. It cannot detect the risk of fire occurring in the cores stored on the shelves in a timely manner, nor can it extinguish abnormal cores, making it difficult to effectively avoid personal and property losses caused by fires caused by thermal runaway. Utility Model Content

[0004] This application aims to provide a fire control system for a core storage warehouse to solve the problems of low intelligence of the existing fire detection system for core storage warehouses and inability to extinguish abnormal cores.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] This application discloses a fire control system for a core storage warehouse, including: a storage shelf, a temperature measurement component, a transfer mechanism, and a fire extinguishing device; wherein,

[0007] There are storage locations on the storage shelf, and the storage locations are used to place cores, and the fire extinguishing device is arranged at an interval from the storage shelf;

[0008] The temperature measurement component includes a temperature measurement host and a temperature measurement optical fiber. The temperature measurement host is arranged outside the storage shelf. One end of the temperature measurement optical fiber is connected to the temperature measurement host, and the other end is connected to the storage location. The temperature measurement host monitors the temperature of the core through the temperature measurement optical fiber, and when the temperature exceeds the threshold, sends an indication signal to the transfer mechanism;

[0009] The transfer mechanism is movably arranged between the storage shelf and the fire extinguishing device. The transfer mechanism is used to transfer the core in the storage location to the fire extinguishing device according to the indication signal, and the fire extinguishing device is used to perform a fire extinguishing operation on the core.

[0010] Optionally, the transfer mechanism includes a scheduling control host and a stacker. The scheduling control host is communicatively connected to the stacker and the temperature measurement component respectively to receive the indication signal and control the stacker to transfer the battery cell in the storage location to the fire extinguishing device. The stacker moves between the storage rack and the fire extinguishing device.

[0011] Optionally, the transfer mechanism further includes a stacker rail. The stacker rail is arranged between the storage rack and the fire extinguishing device, and the stacker is slidably connected to the stacker rail.

[0012] Optionally, the fire extinguishing device includes a fire extinguishing water tank. The fire extinguishing water tank is provided with a receiving cavity for receiving fire fighting water. An elevating mechanism is arranged in the fire extinguishing water tank for receiving the battery cell and submerging the battery cell into the fire fighting water.

[0013] Optionally, the transfer mechanism includes a loading platform. A smoke detection device and a fire extinguisher are arranged on the loading platform. The smoke detection device is electrically connected to the fire extinguisher. The smoke detection device is used for detecting the smoke of the battery cell and controlling the fire extinguisher to perform a preliminary fire extinguishing operation.

[0014] Optionally, the storage location includes a top plate and a bottom plate oppositely arranged in a first direction. The battery cell is placed on the bottom plate, and the temperature measurement optical fiber is connected to the top plate.

[0015] Optionally, the temperature measurement optical fiber (202) is arranged in a circular shape on the top plate.

[0016] Optionally, the storage rack includes a plurality of storage locations. The plurality of storage locations are arranged in an array in the first direction and a second direction. A row of storage locations is arranged in the second direction. Wherein, the number of the temperature measurement optical fibers is multiple. One temperature measurement optical fiber is connected between a row of storage locations, or one temperature measurement optical fiber is connected between multiple rows of storage locations.

[0017] Optionally, the temperature measurement component further includes an alarm output module, an electrical fire alarm host and an alarm. The electrical fire alarm host is communicatively connected to the alarm output module and the alarm respectively. The alarm output module is used for receiving the indication signal sent by the temperature measurement host and controlling the electrical fire alarm host and the alarm to perform an alarm operation. Wherein, the alarm includes at least one of an audible and visual alarm, a manual button alarm and a smoke detector alarm.

[0018] Optionally, the temperature measurement component further includes a local client and a handheld terminal. The local client is communicatively connected to the temperature measurement host and the handheld terminal. The local client is configured to receive the alarm information sent by the temperature measurement host and transmit the alarm information to the handheld terminal.

[0019] In the embodiment of the present application, the fire control system for the battery cell storage warehouse is provided with a temperature measurement component, and the temperature measurement component is communicatively connected to the transfer mechanism and the storage location respectively. The temperature measurement optical fiber can monitor the temperature of the battery cells placed on the storage locations in the storage shelves. When the temperature of the battery cells is abnormal and exceeds the threshold, the temperature measurement host can send an instruction signal to the transfer mechanism. The transfer mechanism is movably connected between the storage shelves and the fire extinguishing device. When the transfer mechanism receives the instruction signal from the temperature measurement host, it can transfer the battery cells to the fire extinguishing device according to the instruction signal, and the fire extinguishing device is used to perform a fire extinguishing operation on the battery cells with abnormal temperature. Since the fire extinguishing device is spaced apart from the storage shelves, when the fire extinguishing device performs a fire extinguishing operation on the battery cells with abnormal temperature, it will not affect the battery cells on other storage locations on the storage shelves, making the fire control more accurate. The embodiment of the present application can achieve accurate monitoring of the fire in the battery cell storage warehouse and instant feedback for fire extinguishing, with good fire extinguishing treatment effect, and can effectively reduce the personnel and property losses caused by the thermal runaway of the battery cells.

[0020] Some of the additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0022] Figure 1 is the control flowchart of the fire control system for the battery cell storage warehouse according to the embodiment of the present application;

[0023] Figure 2 is the topology schematic diagram of the temperature measurement component of the fire control system for the battery cell storage warehouse according to the embodiment of the present application;

[0024] Figure 3 is the distribution schematic diagram of the temperature measurement optical fiber of the fire control system for the battery cell storage warehouse according to the embodiment of the present application;

[0025] Figure 4 is the distribution schematic diagram of the temperature measurement optical fiber on the top plate of the storage location;

[0026] Figure 5 is the distribution schematic diagram of the temperature measurement optical fiber on the storage shelves according to the embodiment of the present application;

[0027] Figure 6It is one of the schematic diagrams of the temperature measurement optical fiber positioning principle described in the embodiments of the present application;

[0028] Figure 7 It is the second schematic diagram of the temperature measurement optical fiber positioning principle described in the embodiments of the present application.

[0029] Reference numerals: 100 - storage rack, 101 - storage location, 200 - temperature measurement component, 201 - temperature measurement host, 202 - temperature measurement optical fiber, 203 - alarm output module, 2031 - relay, 204 - alarm module, 2041 - electrical fire alarm host, 2042 - alarm, 2043 - audible and visual alarm, 2044 - manual button alarm, 2045 - smoke detector, 205 - information receiving module, 2051 - local client, 2052 - handheld terminal, 2053 - monitoring center, 300 - transfer mechanism, 301 - dispatching control host, 302 - stacker crane, 303 - smoke detection device, 304 - fire extinguisher, 305 - stacker crane track, 400 - fire extinguishing device, 500 - server, x - first direction, y - second direction. Detailed implementation manners

[0030] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0031] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0032] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] The embodiment of the present application provides a fire control system for a battery cell storage warehouse, which can be used in a battery cell storage warehouse. Through the fire control system for a battery cell storage warehouse provided by the present application, accurate monitoring of the fire in the battery warehouse can be achieved and fire extinguishing can be immediately feedback, and the fire extinguishing treatment effect is good, which can effectively reduce the personnel and property losses caused by the thermal runaway of the battery cells.

[0035] The following further details the fire control system for a battery cell storage warehouse provided by the embodiment of the present application in conjunction with the drawings and specific embodiments.

[0036] It should be noted that in the embodiment of the present application, the first direction x is the height direction of the storage shelf 100, and the second direction y is the length direction of the storage shelf 100.

[0037] As Figure 2 、 Figure 3 described, the fire control system for a battery cell storage warehouse provided by the embodiment of the present application may include: a storage shelf 100, a temperature measurement component 200, a transfer mechanism 300, and a fire extinguishing device 400. In practical applications, the battery cells are stored on the storage shelf 100, the temperature measurement component 200 is disposed close to the battery cells and is used to monitor the temperature of the battery cells, and send an indication signal to the transfer mechanism 300. The transfer mechanism 300 receives the indication signal from the temperature measurement component 200, and transfers the battery cells from the storage shelf 100 to the fire extinguishing device 400 for fire extinguishing treatment.

[0038] Specifically, storage shelves 100 are provided with storage locations 101 for placing battery cells, and the fire extinguishing device 400 is arranged at an interval from the storage shelves 100. Among them, the storage locations 101 on the storage shelves 100 can be arranged in a multi-row and multi-column array, so that more battery cells can be stored. Each storage location 101 is provided with a tray, and the battery cells can be placed in the tray for easy picking by the transfer mechanism 300. When the fire extinguishing device 400 is arranged at an interval from the storage shelves 100, there is a certain distance in the middle. Removing the abnormal battery cells from the storage shelves 100 and transferring them to the fire extinguishing device 400 can effectively prevent the spread of fire between the storage locations 101 in the event of a fire caused by the abnormal battery cells.

[0039] The temperature measurement component 200 includes a temperature measurement host 201 and a temperature measurement optical fiber 202. The temperature measurement host 201 is arranged outside the storage shelves 100. One end of the temperature measurement optical fiber 202 is connected to the temperature measurement host 201, and the other end is connected to the storage location 101. The temperature measurement component 200 further includes a detector host for emitting infrared short pulse light. The infrared short pulse light is transmitted in the temperature measurement optical fiber 202. The temperature measurement optical fiber 202 is laid on the storage location 101 and has a certain length. The temperature measurement optical fiber 202 in each storage location 101 can be used to locate the specific position of the storage location 101, and the specific laying length is flexibly set according to the specific conditions of the storage location 101 and the battery cells.

[0040] In practical applications, when the temperature of the battery cells in the storage location 101 rises abnormally, the temperature in the storage location 101 also rises. The pre-laid temperature measurement optical fiber 202 senses the increase in the surrounding temperature and transmits the temperature signal to the temperature measurement host 201. When the temperature exceeds the threshold, the temperature measurement host 201 sends an indication signal to the transfer mechanism 300. Among them, the temperature measurement host 201 can preset the alarm temperature in advance. When the temperature measurement optical fiber 202 monitors that the temperature of the battery cells in the corresponding storage location 101 exceeds the preset alarm temperature, since the temperature measurement host 201 is connected to the temperature measurement optical fiber 202, the temperature measurement host 201 sends an alarm indication signal to the transfer mechanism 300. The alarm indication signal can include the position of the alarm storage location 101, the monitored temperature of the battery cells, and the alarm time.

[0041] The transfer mechanism 300 is movably arranged between the storage shelves 100 and the fire extinguishing device 400. Specifically, the transfer mechanism 300 is communicatively connected to the temperature measurement host 201. When the transfer mechanism 300 receives the alarm indication signal from the temperature measurement host 201, the transfer mechanism 300 is used to transfer the battery cells in the storage location to the fire extinguishing device 400 according to the indication signal, and the fire extinguishing device 400 is used to perform a fire extinguishing operation on the battery cells.

[0042] In practical applications, the transfer mechanism 300 can move to the front of the storage location 101 of the abnormal battery cell in the storage rack 100 according to the received position of the alarm storage location 101. A forklift and a lifting mechanism can be provided at the front end of the transfer mechanism 300. The lifting mechanism is used to raise or lower the forklift to a suitable position, and then the forklift can be translated into the storage location 101 to fork out the entire pallet. Then, the transfer mechanism 300 moves to the front of the fire extinguishing device 400 to perform fire extinguishing treatment on the abnormal battery cell. Among them, the fire extinguishing device 400 can be set as a fire water tank or a spraying mechanism, and the present application does not make specific limitations on this.

[0043] In an embodiment of the present application, the transfer mechanism 300 includes a scheduling control host 301 and a stacker 302. The scheduling control host 301 is communicatively connected to the stacker 302 and the temperature measurement component 200 respectively to receive an indication signal and control the stacker 302 to transfer the battery cell to the fire extinguishing device 400.

[0044] Specifically, the scheduling control host 301 can be a Warehouse Control System (WCS for short). The scheduling control host 301 is communicatively connected to the temperature measurement host 201 in the temperature measurement component 200. A server 500 can also be provided between the scheduling control host 301 and the temperature measurement component 200. The temperature measurement host 201 transmits an alarm indication signal to the server 500. Information can be sent and received between the server 500 and the scheduling control host 301 to receive the alarm indication signal from the temperature measurement host 201, obtain the target storage location 101 of the stacker 302, and control the stacker 302 to move to the front of the target storage location 101. After the stacker 302 takes out the abnormal battery cell from the storage location 101, it then controls the stacker 302 to move to the fire extinguishing device 400.

[0045] Optionally, the transfer mechanism 300 further includes a stacker ground rail 305. The stacker ground rail 305 is arranged on the ground and is located between the storage rack 100 and the fire extinguishing device 400. The stacker 302 is slidably connected to the stacker ground rail 305.

[0046] In practical applications, multiple storage racks 100 can be provided in the battery cell storage warehouse. In addition, other devices such as a constant temperature and humidity box and an automatic control system will also be provided in the warehouse. Therefore, by setting the stacker ground rail 305, the stacker 302 can travel along the track of the stacker ground rail 305, and the moving route of the stacker 302 is more regular and orderly, which can avoid hitting other devices during the moving process.

[0047] Optionally, the fire extinguishing device 400 includes a fire extinguishing water tank. The fire extinguishing water tank is provided with a receiving cavity for receiving fire fighting water; a lifting mechanism is also provided in the fire extinguishing water tank for receiving the battery cell and submerging the battery cell in the fire fighting water.

[0048] In actual application, the stacker 302 moves to the front of the fire extinguishing device 400, and then transfers the battery tray to the lifting mechanism of the fire extinguishing water tank. The lifting mechanism descends and sinks into the fire water and immerses the battery tray as a whole into the fire water to complete the fire extinguishing operation of the abnormal battery cell. The fire extinguishing water tank can store more fire water, improve the fire extinguishing efficiency, and ensure the fire extinguishing effect.

[0049] It should be noted that after the stacker 302 transfers the battery cells to the fire extinguishing water tank, due to the interval between the fire extinguishing device 400 and the storage shelf 100, the abnormal battery cells have been isolated from other normal battery cells, and the fire will not continue to spread. In addition, after the stacker 302 transfers the battery cells to the fire extinguishing water tank, they can also wait for manual processing.

[0050] In one embodiment of the present application, the transfer mechanism 300 includes a cargo platform, on which a smoke detection device 303 and a fire extinguisher 304 are provided. The smoke detection device 303 is electrically connected to the fire extinguisher 304. The smoke detection device 303 is used to detect smoke in the battery cell and control the fire extinguisher 304 to perform preliminary fire extinguishing operations.

[0051] Specifically, a loading platform is provided on the top of the stacker 302. The stacker 302 forks the abnormal battery cell pallet and places it on the loading platform. The smoke detection device 303 can detect smoke. When there is no smoke in the battery cells on the loading platform, the stacker 302 can directly transfer the battery cell pallet to the fire extinguishing device 400 for fire extinguishing. When the smoke detection device 303 detects smoke, the fire extinguisher 304 is activated to perform preliminary fire extinguishing operations on the battery cells, and at the same time, it is moved to the front of the fire extinguishing device 400 for fire extinguishing.

[0052] The fire extinguisher 304 may be a carbon dioxide fire extinguisher, a dry powder fire extinguisher, a foam fire extinguisher, etc. The embodiment of the present application does not specifically limit the type of the fire extinguisher 304 .

[0053] In one embodiment of the present application, the cargo space 101 includes a top plate and a bottom plate arranged relative to each other along a first direction x, the battery cells are placed on the bottom plate, the temperature measuring optical fiber 202 is connected to the top plate, and the first direction x is the height direction of the storage shelf 100.

[0054] Specifically, in a row of cargo spaces 101, partitions are arranged between adjacent cargo spaces 101, and a single cargo space 101 includes a top plate and a bottom plate arranged along a first direction, and the top plate, the bottom plate and the partitions enclose a storage space, and the battery cell tray is placed on the bottom plate, and the battery cell is placed in the battery cell tray, and the battery cell and the battery cell tray are accommodated as a whole in the storage space.

[0055] like Figure 4As shown, the temperature-measuring optical fiber 202 is arranged in a surrounding shape on the top plate. Specifically, the temperature-measuring optical fiber 202 enters the storage location 101 from one side of the top plate and exits the storage location 101 from the other side of the top plate. The temperature-measuring optical fiber 202 can be arranged in an O shape or a U shape. The temperature-measuring optical fiber 202 arranged in a surrounding shape can pass above the battery cells stored in the storage location 101, thereby improving the monitoring accuracy of the temperature-measuring optical fiber 202. The fasteners are arranged at intervals on the top plate and fix the temperature-measuring optical fiber 202 on the top plate. In practical applications, the arrangement method of the temperature-measuring optical fiber 202 can be determined by itself, and the present application does not make specific limitations thereon. The partition board, top plate, bottom plate, etc. forming the storage location 101 can be made of heat-insulating materials, so as to prevent heat from being transferred to the adjacent storage location 101 when the temperature of the abnormal battery cell rises, so that the temperature monitoring of the abnormal battery cell by the temperature-measuring optical fiber 202 can be more accurate.

[0056] In an embodiment of the present application, as Figure 5 shown, the storage rack 100 includes a plurality of storage locations 101, and the number of temperature-measuring optical fibers 202 is multiple. Specifically, the plurality of storage locations 101 are arranged in an array along the first direction x and the second direction y. A row of storage locations 101 is arranged along the second direction y, and one temperature-measuring optical fiber 202 is connected between a row of storage locations 101. One temperature-measuring optical fiber 202 is arranged for each row of storage locations 101, or one temperature-measuring optical fiber 202 is connected between multiple rows of storage locations 101. The distribution method of the temperature-measuring optical fiber 202 in the embodiment of the present application is flexible, and can be specifically set according to the structure of the storage rack 100 in practical applications.

[0057] Optionally, the temperature-measuring component 200 further includes an alarm output module 203 and an alarm module 204. The alarm output module 203 is electrically connected to the temperature-measuring host 201 and the alarm module 204 respectively. The alarm output module 203 is used to receive the indication signal sent by the temperature-measuring host 201 and control the alarm module 204 to perform an alarm operation. In addition, a relay 2031 can be arranged between the alarm output module 203 and the alarm module 204.

[0058] In the case where the alarm output module 203 and the alarm module 204 are provided, on the one hand, the temperature-measuring host 201 can control the transfer mechanism 300 to transfer the abnormal battery cell. On the other hand, the temperature-measuring host 201 sends an alarm signal to the alarm output module 203, and the alarm module 204 can perform an alarm operation to notify the staff. When the staff hears the alarm signal, they can assist the transfer mechanism 300 and the fire extinguishing device 400 to complete the transfer and fire extinguishing operations of the abnormal battery cell, further ensuring the fire extinguishing effect.

[0059] Optionally, the alarm module 204 includes an electrical fire alarm host 2041 and an alarm 2042. The electrical fire alarm host 2041 is communicatively connected to the alarm output module 203 and the alarm 2042 respectively. The alarm 2042 includes at least one of an audible and visual alarm 2043, a manual button alarm 2044, and a smoke detector 2045.

[0060] Among them, the electrical fire alarm host 2041 can implement a full-automatic and manual reporting mode. The types of the alarm 2042 are not specifically limited in this application, and technicians can select them according to the warehouse environment and specific layout.

[0061] In an embodiment of the present application, the temperature measurement component 200 further includes an alarm output module 203 and an information receiving module 205. The alarm output module 203 is electrically connected to the temperature measurement host 201 and the information receiving module 205 respectively. In practical applications, the temperature measurement host 201 is further used to send alarm information, and the alarm output module 203 is used to receive the alarm information sent by the temperature measurement host 201 and transmit the alarm information to the information receiving module 205.

[0062] Further, the information receiving module 205 includes a local client 2051 and a handheld terminal 2052. The local client 2051 is communicatively connected to the alarm output module 203 and the handheld terminal 2052 respectively. The local client 2051 is used to receive alarm information and transmit the alarm information to the handheld terminal 2052.

[0063] In addition, the fire control system for the core storage warehouse provided by the embodiment of the present application is further provided with a monitoring center 2053. The monitoring center 2053 is communicatively connected to the electrical fire alarm host 2041 to realize information sharing between the two. The monitoring center 2053 can be connected to a computer, and preset parameters can be set through the computer, the temperature data of the storage location 101 can be displayed in real time, and information such as alarms and faults can be displayed.

[0064] As Figure 6 、 Figure 7 shown, it is a schematic diagram of the positioning principle of the temperature measurement optical fiber 202 described in the embodiment of the present application. Specifically, the positioning principle of the temperature measurement optical fiber 202 described in the embodiment of the application is as follows:

[0065] The light source used in the temperature-measuring optical fiber is a light source with an extremely narrow spectrum. Specifically, invisible infrared short-pulse light with a wavelength of 1550 ± 5 nm is transmitted in the temperature-measuring optical fiber (such as multimode optical fiber and single-mode optical fiber). Some of the light rays scatter around in directions deviating from the original direction. The heat dissipation of the light will excite several other spectra, including Rayleigh scattering, Brillouin scattering, and Raman scattering. These spectra are different from the spectrum of the incident light at 1550 nm. The principle of optical fiber temperature measurement is based on the physical principle of Raman scattering. The photons interact with the thermal vibration of the optical fiber to exchange energy. Part of the thermal vibration is converted into light energy, emitting a light with a wavelength shorter than the light source, called anti-Stokes light. Part of the light energy is converted into thermal vibration, emitting a light with a wavelength longer than the light source, called Stokes light.

[0066] The distance positioning function of the temperature-measuring optical fiber is based on the principle of optical time domain reflectometry (OTDR). When a laser pulse with a certain energy and width is injected into the temperature-measuring optical fiber, backward Raman scattering light waves are continuously generated during its transmission in the temperature-measuring optical fiber. The intensity of these backward Raman scattering light waves changes due to the temperature of the scattering points in the temperature-measuring optical fiber. After the scattered Raman light waves are subjected to optical filtering, photoelectric conversion, amplification, and analog-to-digital conversion, they are sent to the signal processing system, and the temperature signal can be displayed in real time. And the temperature information is located according to the transmission speed of the light wave in the temperature-measuring optical fiber and the time of the backward light echo. Suppose the distance of the goods location where the situation occurs from the temperature-measuring host is L, the speed of light is c, and the refractive index n of the core of the temperature-measuring optical fiber is 1.5 (generally taken as 1.5). After the light pulse is triggered, the temperature anomaly is detected after time T. Then the position of the temperature anomaly is L = (2C / n)*T.

[0067] According to the above battery storage warehouse fire control system, the following method can be used to realize the temperature monitoring of abnormal batteries:

[0068] S1: The infrared short-pulse light emitted by the detector host is transmitted in the temperature-measuring optical fiber. The short-pulse light is equivalent to a train 0.5 meters long speeding in a tunnel. At the position where it travels, the temperature of the optical fiber at that position is stored and sent back to the temperature-measuring host side;

[0069] S2: A spectrogram can be obtained from the end face at any position of the temperature-measuring optical fiber, and the spectrogram contains temperature information;

[0070] S3: By continuously sampling the spectrogram, Stokes curves and anti-Stokes curves can be obtained. The abscissa of this curve is the distance, and the ordinate is the energy of the temperature signal;

[0071] S4: Calculate the distributed curve graph of temperature versus distance through a formula;

[0072] S5: Through the software of the temperature-measuring host, this curve can be partitioned. Each partition can have different temperature alarms, different alarm outputs, and different alarm linkages, forming a set of distributed optical fiber fire alarm systems.

[0073] In summary, the fire control system for the battery cell storage warehouse provided by the embodiments of the present application has at least the following advantages:

[0074] In the embodiments of the present application, the fire control system for the battery cell storage warehouse is provided with a temperature measurement component, and the temperature measurement component is communicatively connected to the transfer mechanism and the storage location respectively. The temperature measurement optical fiber can monitor the temperature of the battery cells placed on the storage locations in the storage shelves. When the temperature of the battery cells is abnormal and exceeds the threshold, the temperature measurement host can send an instruction signal to the transfer mechanism. The transfer mechanism is movably connected between the storage shelves and the fire extinguishing device. When the transfer mechanism receives the instruction signal from the temperature measurement host, it can transfer the battery cells to the fire extinguishing device according to the instruction signal, and the fire extinguishing device is used to perform a fire extinguishing operation on the battery cells with abnormal temperature. Since the fire extinguishing device is spaced apart from the storage shelves, when the fire extinguishing device performs a fire extinguishing operation on the battery cells with abnormal temperature, it will not affect the battery cells on other storage locations on the storage shelves, making the fire control more accurate. The embodiments of the present application can achieve accurate monitoring of the fire in the battery cell storage warehouse and instant feedback for fire extinguishing, with good fire extinguishing treatment effects, and can effectively reduce the personnel and property losses caused by the thermal runaway of the battery cells.

[0075] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fire control system for a battery cell storage warehouse, characterized in that: include: A storage shelf (100), a temperature measuring component (200), a transfer mechanism (300) and a fire extinguishing device (400); wherein: The storage shelf (100) is provided with a cargo space (101), the cargo space (101) is used to place battery cells, and the fire extinguishing device (400) is arranged at a distance from the storage shelf (100); The temperature measurement component (200) comprises a temperature measurement host (201) and a temperature measurement optical fiber (202); the temperature measurement host (201) is arranged outside the storage shelf (100); one end of the temperature measurement optical fiber (202) is connected to the temperature measurement host (201) and the other end is connected to the cargo position (101); the temperature measurement host (201) monitors the temperature of the battery cell through the temperature measurement optical fiber (202) and sends an indication signal to the transfer mechanism (300) when the temperature exceeds a threshold value; The transfer mechanism (300) is movably arranged between the storage shelf (100) and the fire extinguishing device (400), and the transfer mechanism (300) is used to transfer the battery cells in the cargo position (101) to the fire extinguishing device (400) according to the indication signal, and the fire extinguishing device (400) is used to perform a fire extinguishing operation on the battery cells.

2. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The transfer mechanism (300) comprises a dispatching control host (301) and a stacker. The dispatching control host (301) is respectively connected to the stacker and the temperature measuring component (200) for communication so as to receive the indication signal and control the stacker to transfer the battery cells in the cargo space to the fire extinguishing device (400). The stacker moves between the storage shelf (100) and the fire extinguishing device (400).

3. The battery cell storage warehouse fire control system according to claim 2, characterized in that: The transfer mechanism (300) further comprises a stacker ground rail (305), wherein the stacker ground rail (305) is arranged between the storage shelf (100) and the fire extinguishing device (400), and the stacker is slidably connected to the stacker ground rail (305).

4. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The fire extinguishing device (400) comprises a fire extinguishing water tank, wherein the fire extinguishing water tank is provided with a containing chamber, wherein the containing chamber is used to contain fire-fighting water; a lifting mechanism is provided inside the fire extinguishing water tank, wherein the lifting mechanism is used to receive the battery cell and immerse the battery cell in the fire-fighting water.

5. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The transfer mechanism (300) comprises a cargo platform, on which a smoke detection device (303) and a fire extinguisher (304) are arranged, the smoke detection device (303) being electrically connected to the fire extinguisher (304), and the smoke detection device (303) being used to detect smoke from the battery cell and control the fire extinguisher (304) to perform a preliminary fire extinguishing operation.

6. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The cargo position (101) comprises a top plate and a bottom plate which are arranged opposite to each other along a first direction (x); the battery core is placed on the bottom plate; and the temperature measuring optical fiber (202) is connected to the top plate.

7. The battery cell storage warehouse fire control system according to claim 6, characterized in that: The temperature measuring optical fiber (202) is arranged in a surrounding shape on the top plate.

8. The battery cell storage warehouse fire control system according to claim 6, characterized in that: The storage shelf (100) comprises a plurality of cargo positions (101), wherein the plurality of cargo positions (101) are arranged in an array along the first direction (x) and the second direction (y), and a row of the cargo positions (101) is arranged along the second direction (y); wherein: There are a plurality of temperature measuring optical fibers (202), one temperature measuring optical fiber (202) is connected between a row of cargo positions (101), or one temperature measuring optical fiber (202) is connected between a plurality of rows of cargo positions (101).

9. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The temperature measurement component (200) further comprises an alarm output module (203), an electrical fire alarm host (2041) and an alarm (2042); the electrical fire alarm host (2041) is respectively connected to the alarm output module (203) and the alarm (2042) for communication; the alarm output module (203) is used to receive an indication signal sent by the temperature measurement host (201) and control the electrical fire alarm host (2041) and the alarm (2042) to perform an alarm operation; wherein the alarm (2042) comprises at least one of an audible and visual alarm (2043), a manual button alarm (2044) and a smoke alarm (2045).

10. The battery cell storage warehouse fire control system according to claim 1, characterized in that: The temperature measurement component (200) further comprises a local client (2051) and a handheld terminal (2052), wherein the local client (2051) is communicatively connected with the temperature measurement host (201) and the handheld terminal (2052), and the local client (2051) is used to receive alarm information issued by the temperature measurement host (201) and transmit the alarm information to the handheld terminal (2052).

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