Formation and capacity grading equipment

Abstract

The invention relates to the technical field of batteries, and provides formation and capacity grading equipment which comprises a low-pressure water mist fire extinguishing system and a plurality of storage locations, trays for placing battery monomers are arranged in the storage locations, a plurality of fire-fighting sprayers are distributed in the storage locations, and the fire-fighting sprayers are connected to the low-pressure water mist fire extinguishing system through fire-fighting pipelines; the fire-fighting sprayers are provided with spraying areas, the spraying areas of the multiple fire-fighting sprayers are configured to jointly cover the tray, a needle bed assembly is further arranged in the storage location, and the fire-fighting sprayers are located outside the operation range of the needle bed assembly and / or located in the center of the needle bed assembly; according to the formation and capacity grading equipment provided by the embodiment of the invention, the low-pressure water mist fire extinguishing system is adopted to provide the fire extinguishing medium for the fire extinguishing nozzle, the use amount of the fire extinguishing medium in a low-pressure state is effectively reduced, the fire extinguishing pipeline can be a conventional pipeline, and compared with a high-pressure-resistant pipeline, the cost is lower; meanwhile, the probability that the fire sprinkler is influenced by the operation of the needle bed assembly is lower.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular provides a capacity-splitting device. Background Art

[0002] In the production process of lithium batteries, a capacity conversion process is required. During the capacity conversion process, the battery is activated, so the battery is in a charged state, and there is a risk of battery short circuit and combustion due to external factors.

[0003] In the related art, a fire fighting device is used to spray a fire extinguishing medium in a chemical component storage device to deal with a fire. However, the related art mainly uses a high-pressure spraying method to achieve spraying fire extinguishing, which has many problems. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a chemical separation and containment device, aiming to solve the problem that the fire protection system of the chemical separation and containment device in the related art adopts a high-pressure spraying method.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is: An embodiment of the present application provides a chemical separation and capacity storage device, which includes a low-pressure water mist fire extinguishing system and multiple storage locations, wherein a tray for placing battery cells is arranged inside the storage location, and multiple fire sprinklers are distributed inside the storage location, and the fire sprinklers are connected to the low-pressure water mist fire extinguishing system through fire pipes; the fire sprinklers have a spraying area, and the spraying areas of the multiple fire sprinklers are configured to cover the tray together; a needle bed assembly is also arranged inside the storage location, and the tray is located within the operating range of the needle bed assembly; the fire sprinkler is located outside the operating range of the needle bed assembly; and / or the fire sprinkler is located at the center of the needle bed assembly.

[0006] Beneficial effects of the embodiments of the present application: The chemical fractionation equipment provided by the embodiments of the present application, by arranging multiple fire sprinklers in the storage position and making the spraying areas of the multiple fire sprinklers cover the pallet, when a fire occurs in the battery cells placed in the pallet, the multiple fire sprinklers can spray together to extinguish the fire; at the same time, a low-pressure water mist fire extinguishing system is used to provide fire extinguishing medium to the fire sprinklers, and the spraying rate of the fire extinguishing medium is lower, and the amount of fire extinguishing medium can be effectively reduced, thereby reducing the amount of water stains inside the chemical fractionation equipment, and the fire-fighting pipeline can adopt conventional pipelines, which are lower in cost than high-pressure resistant pipelines; and the fire sprinklers are arranged outside the operating range of the needle bed assembly, and / or the fire sprinklers are arranged at the center of the needle bed assembly, which can effectively reduce the probability of damage to the fire sprinklers due to collision with the fire sprinklers during the changeover operation.

[0007] In some embodiments, a probe is disposed on the needle bed assembly, and in the direction of gravity, the bottom height of the fire sprinkler head is greater than or equal to the bottom height of the probe.

[0008] By adopting the above technical solution, when laying out the fire sprinkler, the fire sprinkler is laid out to a height not lower than the probe, that is, the bottom height of the fire sprinkler is greater than or equal to the bottom height of the probe, so as to reduce the probability of interference between the fire sprinkler and the probe.

[0009] In some embodiments, in the direction of gravity, the distance between the bottom of the fire sprinkler head and the tray is p, and p≥50 mm.

[0010] By adopting the above technical solution, the distance p between the bottom of the fire sprinkler and the tray is set to be greater than or equal to 50 mm, so that a sufficient distance is formed between the fire sprinkler and the tray, thereby ensuring the spraying effect of the fire sprinkler and reducing the probability of interference between the fire sprinkler and the battery cells placed on the tray.

[0011] In some embodiments, in the direction of gravity, the spraying direction of the fire sprinkler is downward, and the distance between the bottom of the fire sprinkler and the bottom of the probe is m, wherein 10 mm≤m≤20 mm.

[0012] By adopting the above-mentioned technical solution, the fire sprinkler can spray downward and form a spraying area; at the same time, the distance m between the bottom of the fire sprinkler and the bottom of the probe is limited to greater than or equal to 10 mm and less than or equal to 20 mm, so that the fire sprinkler has a better spraying effect at this height.

[0013] In some embodiments, in the direction of gravity, the spraying direction of the fire sprinkler is upward, and the distance between the top of the fire sprinkler and the bottom of the probe is n, wherein 20 mm≤n≤50 mm.

[0014] By adopting the above-mentioned technical solution, the fire sprinkler can spray upward and form a spraying area; at the same time, the distance n between the top of the fire sprinkler and the bottom of the probe is limited to greater than or equal to 20 mm and less than or equal to 50 mm, so that the fire sprinkler has a better spraying effect at this height.

[0015] In some embodiments, the low-pressure water mist fire extinguishing system includes a wet system, which is connected to a fire sprinkler through a fire pipe, and the wet system is used to provide a fire extinguishing medium to the fire sprinkler.

[0016] By adopting the above technical solution, the wet system can supply fire extinguishing medium into the fire-fighting pipeline under normal conditions. When a fire occurs, the fire-fighting sprinkler can directly spray out the fire extinguishing medium after the fire sprinkler explodes to extinguish the fire.

[0017] In some embodiments, the low-pressure water mist fire extinguishing system includes a pre-action system, which is connected to the fire sprinkler through a fire pipeline, and the pre-action system is used to provide fire extinguishing medium to the fire sprinkler.

[0018] By adopting the above technical solution, the inside of the fire-fighting pipeline is in a dry state under normal circumstances. Only when a fire occurs will the pre-action system supply fire-fighting medium into the fire-fighting pipeline for the fire-fighting sprinkler operation.

[0019] In some embodiments, the response time index RTI of the fire sprinkler is: RTI<50; the coefficient K of the fire sprinkler is: K14. By adopting the above technical solution, the response time index RTI of the fire sprinkler is less than 50, and the coefficient of the fire sprinkler is K14, so the fire sprinkler has a better fire extinguishing effect.

[0020] In some embodiments, the working pressure of the fire sprinkler is between 0.35 MPa and 0.8 MPa; the minimum working flow rate of the fire sprinkler is greater than or equal to 34.3 L / min.

[0021] By adopting the above technical solution, the working pressure of the fire sprinkler is between 0.35 Mpa and 0.8 Mpa, and the minimum working flow rate of the fire sprinkler is greater than or equal to 34.3 L / min. In this way, the fire sprinkler has a better spraying and fire extinguishing effect.

[0022] In some embodiments, the fire sprinkler is configured to generate water mist having a spray cone angle between 145° and 155°.

[0023] By adopting the above technical solution and selecting a fire sprinkler that can generate water mist with a fog cone angle between 145° and 155°, the fire sprinkler has a larger coverage area and a better spraying and fire extinguishing effect.

[0024] In some embodiments, the fire sprinkler is configured to generate water mist having a droplet volume diameter of less than 800 μm.

[0025] By adopting the above technical solution and selecting a fire sprinkler that can generate water mist with a droplet volume diameter of less than 800 μm, the fire sprinkler has a better spraying and fire extinguishing effect.

[0026] In some embodiments, the temperature level of the nozzle is d, the working environment temperature inside the storage location is f, and f+30°C ≤ d ≤ f+60°C.

[0027] By adopting the above technical solution, the temperature level of the fire sprinkler is selected to be greater than or equal to the working environment temperature within the storage space within the range of 30°C to 60°C, so as to ensure the normal use of the fire sprinkler in the event of a fire.

[0028] In some embodiments, multiple storage locations are stacked along the direction of gravity to form at least one row of storage location groups; the fire protection pipeline includes a storage location partitioning pipe and an internal branch pipe of the storage location, and the storage location partitioning pipe is provided with multiple internal branch pipes of the storage location, and the fire sprinklers are arranged on the internal branch pipes of the storage location, and the multiple internal branch pipes of the storage location extend into the corresponding storage locations respectively.

[0029] By adopting the above-mentioned technical scheme, the low-pressure water mist fire extinguishing system can supply the fire extinguishing medium to the storage location partition pipe, and the storage location partition pipe can introduce the fire extinguishing medium to the branch pipes in multiple storage locations. In this way, the branch pipes in multiple storage locations can provide the fire extinguishing medium to the corresponding storage locations, so that each storage location can be sprayed with fire sprinklers to extinguish the fire in the event of a fire.

[0030] In some embodiments, the storage location column groups are arranged in sequence to form multiple columns, and a storage location partitioning pipe is arranged between at least two adjacent columns of storage location column groups; the internal branch pipes arranged on the storage location partitioning pipe extend into multiple storage locations of the two adjacent columns of storage location column groups respectively; the length direction of the storage location partitioning pipe is arranged along the direction of gravity.

[0031] By adopting the above technical solution, when there are multiple columns of storage location groups, the storage location partitioning pipes can be set between two adjacent columns of storage location groups and provide fire extinguishing medium to the two adjacent columns of storage location groups at the same time. This can optimize the layout of the storage location partitioning pipes to reduce the use of storage location partitioning pipes and reduce material costs.

[0032] In some embodiments, the diameter of the storage location partition pipe is greater than or equal to 80 mm; the diameter of the branch pipe within the storage location is greater than or equal to 25 mm.

[0033] By adopting the above-mentioned technical solution, the diameter of the storage partition pipe is set to be greater than or equal to 80 mm, so that the storage partition pipe can provide sufficient water and maintain appropriate water pressure; at the same time, the diameter of the branch pipe inside the storage is set to be greater than or equal to 25 mm, so that the branch pipe inside the storage can provide sufficient water to the storage and maintain appropriate water pressure for the spraying fire extinguishing operation of the fire sprinkler. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the distribution structure of the storage locations of the chemical fractionation equipment provided in the embodiment of the present application; Figure 2 A schematic diagram of a chemical fractionation and content separation device provided in an embodiment of the present application using a wet system; Figure 3 A schematic diagram of a chemical fractionation and content-splitting device provided in an embodiment of the present application using a pre-action system; Figure 4 A schematic diagram of the internal distribution structure of multiple storage locations provided in an embodiment of the present application; Figure 5 A schematic diagram of the distribution structure of a needle bed assembly and a fire sprinkler in a storage location provided in an embodiment of the present application; Figure 6 A schematic diagram of the distribution structure of a needle bed assembly and a fire sprinkler in another storage location provided in an embodiment of the present application; Figure 7 This is a schematic diagram of the distribution structure of fire sprinklers in a top-down view of the interior of a storage location provided in an embodiment of the present application.

[0036] Among them, the reference numerals in the figure are: 1000, chemical component capacity equipment; 2000, battery cell; 3000, pallet; 100. Low-pressure water mist fire extinguishing system; 101. Wet system; 102. Pre-action system; 200, storage location; 210, needle bed assembly; 211, probe; 201, storage location array group; 300. Fire sprinkler; 400, fire protection pipeline; 410, storage location partition pipe; 420, storage location branch pipe; G, direction of gravity; DETAILED DESCRIPTION Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0041] During the production of batteries, the batteries need to be subjected to a formation process, which is the process of charging the battery for the first time, and its function is to activate the positive and negative electrode materials inside it. In related technologies, the battery formation process is generally carried out in a formation machine. Since the positive and negative electrode materials inside the battery will be activated during the formation process, the battery will be in a charged state; if the battery is short-circuited due to external factors, the battery may smoke or even burn.

[0042] In order to deal with possible combustion of the battery, a fire extinguishing structure can be set up, for example, a nozzle is set at the corresponding storage position of the chemical fractionation machine, and a fire extinguishing medium is provided to the nozzle through a pipeline, so that in the event of combustion, the nozzle can spray out the fire extinguishing medium to extinguish the flames in time. However, there are many problems with the spray fire extinguishing method mainly used in the related art, which mainly adopts high-pressure spraying. For example, the amount of fire extinguishing medium used in the high-pressure spraying method is large, which may cause a lot of water stains to remain inside the chemical fractionation equipment; or, the high-pressure spraying method requires the use of a high-pressure resistant pipeline structure, resulting in higher costs; or, when performing a changeover operation inside the chemical fractionation equipment, there is a risk of bumping the nozzle, etc.

[0043] Based on the above considerations, in order to solve the problems existing in the fire protection system of chemical fractionating equipment using high-pressure spraying in the related technology, a chemical fractionating equipment is designed. A low-pressure water mist fire extinguishing system is used to provide fire extinguishing medium to the fire sprinklers distributed in the storage space. The spraying areas of multiple fire sprinklers can cover the pallet together, so that the sprayed fire extinguishing medium can effectively suppress and extinguish the fire, and the amount of fire extinguishing medium sprayed out at low pressure is lower, thereby reducing the amount of residual water stains inside the chemical fractionating equipment; at the same time, the fire protection pipeline connected to the fire sprinkler can use a conventional pipeline, which is lower in cost than the high-pressure pipeline; and the fire sprinkler is arranged outside the operating range of the needle bed assembly, and / or the fire sprinkler is arranged at the center of the needle bed assembly, which can effectively reduce the probability of damage to the fire sprinkler due to collision with the fire sprinkler during the changeover operation.

[0044] Next, the chemical composition and capacity distribution equipment provided by the present application will be described in detail.

[0045] Please refer to Figures 1 to 3 as well as Figure 7 The embodiment of the present application provides a chemical separation and capacity device 1000, which includes a low-pressure water mist fire extinguishing system 100 and multiple storage locations 200. A tray 3000 for placing battery cells 2000 is arranged inside the storage location 200. Multiple fire sprinklers 300 are distributed inside the storage location 200, and the fire sprinklers 300 are connected to the low-pressure water mist fire extinguishing system 100 through fire pipes 400; the fire sprinklers 300 have a spraying area (not shown in the figure), and the spraying areas of the multiple fire sprinklers 300 are configured to cover the tray 3000 together; a needle bed assembly 210 is also arranged inside the storage location 200, and the tray 3000 is located within the operating range of the needle bed assembly 210; the fire sprinkler 300 is located outside the operating range of the needle bed assembly 210; and / or the fire sprinkler 300 is located at the center of the needle bed assembly 210.

[0046] The battery cell fractionation device 1000 includes a storage location 200, which refers to a position or area inside the battery cell fractionation device 1000 for storing battery cells 2000 and performing battery cell fractionation operations on the battery cells 2000. The number of storage locations 200 can be one or more, for example, two, three, or any number of more than three; multiple storage locations 200 can be stacked and distributed in the longitudinal direction, or multiple storage locations 200 can also be arranged in sequence in the horizontal direction; or, multiple storage locations 200 can be stacked in the longitudinal direction to form a longitudinal column group, and then arranged in sequence in the horizontal direction to form multiple columns.

[0047] Each storage location 200 of the chemical fractionation equipment 1000 can be used as an independent fire protection partition, and multiple fire sprinklers 300 are respectively distributed inside each storage location 200. When a fire occurs in one of the storage locations 200, the fire sprinklers 300 in the storage location 200 can spray the fire extinguishing medium to extinguish the fire. It should be understood that when a fire occurs in one of the storage locations 200, the storage location 200 where the fire occurs may affect the storage locations 200 on the side or above, so that the sprinklers of the storage locations 200 on the side or above also spray at the same time, thereby reducing the probability of the fire spreading.

[0048] A tray 3000 for placing battery cells 2000 is provided inside the storage location 200; it should be understood that the tray 3000 is used to place multiple battery cells 2000, and the multiple battery cells 2000 can be sent into the storage location 200 for storage and capacity division operations using the tray 3000, or the multiple battery cells 2000 can be transported out of the storage location 200 using the tray 3000.

[0049] There are multiple fire sprinklers 300 distributed inside the storage location 200; optionally, the number of fire sprinklers 300 can be two, three, or any number of more than three. Multiple fire sprinklers 300 can be arranged inside the storage location 200 at intervals so that the spraying areas of multiple fire sprinklers 300 can cover the tray 3000 together; in this way, when a fire occurs in any battery cell 2000, the fire extinguishing medium sprayed by multiple fire sprinklers 300 can act on the fire to extinguish the fire. Among them, the above-mentioned spraying area refers to the area of ​​the tray 3000 covered by the fire extinguishing medium when the fire sprinkler 300 sprays the fire extinguishing medium.

[0050] Optionally, the fire sprinkler 300 may be a temperature-responsive sprinkler, that is, when the ambient temperature reaches a preset value, the fire sprinkler 300 automatically explodes to perform a spraying fire extinguishing operation; or, the fire sprinkler 300 may be an electrical-responsive sprinkler, that is, the occurrence of a fire is monitored by a sensor, and the fire sprinkler 300 spraying operation is started by an electrical signal.

[0051] The low-pressure water mist fire extinguishing system 100 refers to a system that automatically starts when a fire occurs and supplies a fire extinguishing medium into the fire pipe 400 for the fire sprinkler 300 to spray and extinguish the fire. It can be understood that the low-pressure water mist fire extinguishing system 100 includes a fire pump room, and the fire extinguishing medium is pumped into the pipe network and introduced into the fire pipe 400 through the sprinkler pump in the fire pump room.

[0052] Optionally, the low-pressure water mist fire extinguishing system 100 includes but is not limited to a wet system, a pre-action system, etc. The above-mentioned fire extinguishing medium can be a substance that can extinguish a fire, such as water. The low pressure in the low-pressure water mist fire extinguishing system 100 means that the pressure of the fire extinguishing medium in the system is between 0.1 Mpa (megapascals) and 1 Mpa.

[0053] Thus, on the basis of using the low-pressure water mist fire extinguishing system 100, the pipe body structure used in the pipe network of the low-pressure water mist fire extinguishing system 100 itself, the fire fighting pipe 400, etc. can all adopt conventional pipe body structures, such as injection molded pipe bodies, steel pipe bodies, etc. Compared with high-strength steel pipes, alloy steel pipes, etc. used in high-pressure environments, the cost of materials is lower.

[0054] The needle bed assembly 210 refers to an assembly used to perform formation and / or capacity separation operations on the battery cells 2000. The tray 3000 is located within the operating range of the needle bed assembly 210; illustratively, in the gravity direction G, the tray 3000 is located within the operating range of the needle bed assembly 210, and the needle bed assembly 210 can cover any part of the tray 3000 during operation. In this way, the needle bed assembly 210 can act on the battery cells 2000 placed in the tray 3000 to achieve formation and / or capacity separation operations on the battery cells 2000.

[0055] The fire sprinkler 300 is located outside the operating range of the needle bed assembly 210, that is, during the operation of the needle bed assembly 210, the movement range of any structure on it does not cover the position where the fire sprinkler 300 is located; in some embodiments, the fire sprinkler 300 can be arranged around the needle bed assembly 210. In this way, when the needle bed assembly 210 performs formation and / or capacity separation operations on the battery cell 2000, the probability of collision with the fire sprinkler 300 is low.

[0056] And / or, the fire sprinkler 300 may also be disposed at the center of the needle bed assembly 210. It should be understood that during the operation of the needle bed assembly 210, the center of the needle bed assembly 210 will not be affected by the operation of the needle bed assembly 210. In this way, when the needle bed assembly 210 performs formation and / or capacity separation operations on the battery cell 2000, the probability of collision with the fire sprinkler 300 is low.

[0057] The chemical fractionation equipment 1000 provided in the embodiment of the present application arranges a plurality of fire sprinklers 300 in the storage location 200, and makes the spraying areas of the plurality of fire sprinklers 300 cover the tray 3000. When a fire occurs in the battery cells 2000 placed in the tray 3000, the plurality of fire sprinklers 300 can spray together to extinguish the fire. At the same time, a low-pressure water mist fire extinguishing system 100 is used to provide a fire extinguishing medium to the fire sprinklers 300. The spraying rate of the fire extinguishing medium is lower, and the amount of the fire extinguishing medium is effectively reduced, thereby reducing the amount of residual water stains inside the chemical fractionation equipment 1000, and the fire pipeline 400 can adopt a conventional pipeline, which is lower in cost than a high-pressure resistant pipeline. In addition, the fire sprinkler 300 is arranged outside the operating range of the needle bed assembly 210, and / or the fire sprinkler 300 is arranged at the center of the needle bed assembly 210, which can effectively reduce the probability of damage to the fire sprinkler 300 due to collision with the fire sprinkler 300 during the changeover operation.

[0058] Optionally, in some embodiments, the storage location 200 may include fireproof partitions on the top and bottom, side sealing panels on the left and right sides, a front sealing panel on the front side and an insulated maintenance door on the back side; an inlet is opened on the front sealing panel, and a fire door is installed on the inlet; a smoke exhaust fan is also installed on the side sealing panel, which can be used to exhaust smoke before a fire occurs to prevent the accumulation of electrolyte vapor.

[0059] Please refer to Figures 4 to 6 In some embodiments, a probe 211 is provided on the needle bed assembly 210 , and in the gravity direction G, the bottom height of the fire sprinkler 300 is greater than or equal to the bottom height of the probe 211 .

[0060] The probe 211 refers to an actuator on the needle bed assembly 210 for electrically contacting the battery cell 2000. Under the action of the needle bed assembly 210, the probe 211 can move up and down along the gravity direction G to achieve electrical contact with the battery cell 2000 or separate from the battery cell 2000.

[0061] In this embodiment, the bottom height of the fire sprinkler 300 is set to be greater than or equal to the bottom height of the probe 211; that is, the bottom height of the fire sprinkler 300 can be consistent with the bottom height of the probe 211; or, the bottom height of the fire sprinkler 300 is higher than the bottom height of the probe 211.

[0062] The bottom height of the fire sprinkler 300 mentioned above refers to the height of the lowest point of the fire sprinkler 300 in the gravity direction G; the bottom height of the probe 211 mentioned above refers to the height of the lowest point of the probe 211 in the gravity direction G.

[0063] With such an arrangement, when the fire sprinkler 300 is arranged, the fire sprinkler 300 is arranged to a height not lower than the probe 211, that is, the bottom height of the fire sprinkler 300 is greater than or equal to the bottom height of the probe 211. In this way, when the probe 211 moves up and down to act on the battery cell 2000, the probability of interference between the probe 211 and the fire sprinkler 300 is lower, thereby effectively reducing the probability of damage caused by collision between the probe 211 and the fire sprinkler 300.

[0064] Please refer to Figures 4 to 6 In some embodiments, in the gravity direction G, the distance between the bottom of the fire sprinkler 300 and the tray 3000 is p, and p≥50 mm.

[0065] The distance p between the bottom of the fire sprinkler 300 and the tray 3000 refers to the distance between the bottom of the fire sprinkler 300 and the surface of the tray 3000 facing the fire sprinkler 300 and used to place the battery cells 2000. It can be understood that the bottom of the fire sprinkler 300 refers to the point at the bottom of the fire sprinkler 300 in the gravity direction G.

[0066] In this way, the distance p between the bottom of the fire sprinkler 300 and the tray 3000 is set to be greater than or equal to 50 mm, so that a sufficient distance is formed between the fire sprinkler 300 and the tray 3000, thereby ensuring the spraying effect of the fire sprinkler 300 and reducing the probability of interference between the fire sprinkler 300 and the battery cells 2000 placed on the tray 3000.

[0067] Please refer to Figure 4 and Figure 5 In some embodiments, in the gravity direction G, the spraying direction of the fire sprinkler 300 is downward, and the distance between the bottom of the fire sprinkler 300 and the bottom of the probe 211 is m, where 10mm≤m≤20mm.

[0068] In this embodiment, the spraying direction of the fire sprinkler 300 can be set downward, that is, the nozzle of the fire sprinkler 300 is directed downward, that is, it is set toward the tray 3000. Exemplarily, the spraying direction of the fire sprinkler 300 can be vertically downward, that is, the spraying direction of the fire sprinkler 300 is parallel to the gravity direction G. The fire sprinkler 300 can spray directly downward and form a spraying area to cover the tray 3000 for fire extinguishing operation.

[0069] It should be understood that when the low-pressure water mist fire extinguishing system 100 adopts a wet system, the spraying direction of the fire sprinkler 300 can be directed downward. When the low-pressure water mist fire extinguishing system 100 adopts a pre-action system, the spraying direction of the fire sprinkler 300 can also be directed downward; in this way, the fire sprinkler 300 can empty the fire extinguishing medium in the fire pipe 400 to keep the fire pipe 400 dry.

[0070] When the spraying direction of the fire sprinkler 300 is downward, the distance between the bottom of the fire sprinkler 300 and the bottom of the probe 211 is m, that is, the distance between the downward nozzle of the fire sprinkler 300 and the bottom of the probe 211 is m. The bottom of the probe 211 refers to the point at the bottom in the gravity direction G.

[0071] In this embodiment, the distance m between the bottom of the fire sprinkler 300 and the bottom of the probe 211 is limited to greater than or equal to 10 mm and less than or equal to 20 mm; optionally, the distance m between the bottom of the fire sprinkler 300 and the bottom of the probe 211 may be, but is not limited to, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, 15 mm, 15.5 mm, 16 mm, 16.5 mm, 17 mm, 17.5 mm, 18 mm, 18.5 mm, 19 mm, 19.5 mm, 20 mm, etc.

[0072] In this way, the distance m between the bottom of the fire sprinkler 300 and the bottom of the probe 211 is limited to be greater than or equal to 10 mm and less than or equal to 20 mm, so as to limit the height of the fire sprinkler 300 from the tray 3000 to a certain range, and the fire sprinkler 300 has a better spraying effect at this height.

[0073] Please refer to Figure 4 and Figure 6 In some embodiments, in the gravity direction G, the spraying direction of the fire sprinkler 300 is upward, and the distance between the top of the fire sprinkler 300 and the bottom of the probe 211 is n, where 20 mm ≤ n ≤ 50 mm.

[0074] In this embodiment, the spraying direction of the fire sprinkler 300 can be set upward, that is, the nozzle of the fire sprinkler 300 is facing upward, that is, it is set away from the tray 3000. Exemplarily, the spraying direction of the fire sprinkler 300 can be directly upward, that is, parallel to the gravity direction G and in the opposite direction to the gravity direction G. The fire sprinkler 300 can spray upward and form a spraying area to cover the tray 3000 for fire extinguishing operation.

[0075] It should be understood that when the low-pressure water mist fire extinguishing system 100 adopts a wet system, the spraying direction of the fire sprinkler 300 can be directed upward.

[0076] When the spraying direction of the fire sprinkler 300 is upward, the distance between the top of the fire sprinkler 300 and the bottom of the probe 211 is n, that is, the distance between the upward nozzle of the fire sprinkler 300 and the bottom of the probe 211 is n.

[0077] In this embodiment, the distance n between the top of the fire sprinkler 300 and the bottom of the probe 211 is limited to greater than or equal to 20 mm and less than or equal to 50 mm; optionally, the distance n between the top of the fire sprinkler 300 and the bottom of the probe 211 may be, but is not limited to, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm, 49 mm, 50 mm, etc.

[0078] In this way, the distance n between the top of the fire sprinkler 300 and the bottom of the probe 211 is limited to be greater than or equal to 20 mm and less than or equal to 50 mm, so as to limit the height of the fire sprinkler 300 from the tray 3000 to a certain range, and the fire sprinkler 300 has a better spraying effect at this height.

[0079] Please refer to Figure 2 and Figure 4 In some embodiments, the low-pressure water mist fire extinguishing system 100 includes a wet system 101 , which is connected to the fire sprinkler 300 through a fire pipe 400 , and the wet system 101 is used to provide a fire extinguishing medium to the fire sprinkler 300 .

[0080] The wet system 101 refers to a fire water supply system in which water is always kept in the system pipe and has a certain water pressure. The water comes from a stable water source, such as a fire water tank or a city water supply system. In this way, the fire pipeline 400 is always kept in a state of water under the action of the wet system 101, and the fire extinguishing medium can be directly sprayed out when the fire sprinkler 300 is turned on.

[0081] With such arrangement, under normal conditions, the wet system 101 can supply fire water to the fire pipe 400 and keep the fire water at a low pressure; when a fire occurs, the fire sprinkler 300 can directly spray out the fire extinguishing medium after bursting to extinguish the fire.

[0082] Please refer to Figure 3 and Figure 4 In some embodiments, the low-pressure water mist fire extinguishing system 100 includes a pre-action system 102 , which is connected to the fire sprinkler 300 through a fire pipe 400 , and the pre-action system 102 is used to provide a fire extinguishing medium to the fire sprinkler 300 .

[0083] The pre-action system 102 refers to a system that does not supply water in the initial state and releases water only when a fire is detected. The pre-action system 102 combines fire detection and water spraying to release water only when a fire is confirmed to exist, which can effectively reduce the risk of mis-spraying and ensure that water spraying is performed only after a fire is confirmed to have occurred.

[0084] The pre-action system 102 needs to first detect signs of fire through fire detection equipment such as smoke detectors and heat detectors. When a fire is detected, the system will send a signal to the valve structure in the pipe network of the pre-action system 102. Once the fire detector confirms the fire, the valve structure in the pre-action system 102 will open, so that water can be supplied to the fire pipe 400; before the valve structure is opened, there is no water in the fire pipe 400. After the valve structure in the pre-action system 102 is opened and the fire pipe 400 is filled with water, if the fire sprinkler 300 explodes (that is, the thermal element inside the fire sprinkler 300 is triggered, such as glass breaking or alloy melting), water will be sprayed out to perform fire extinguishing operations.

[0085] With such a configuration, by adopting the pre-action system 102, the interior of the fire-fighting pipe 400 is in a dry state under normal circumstances. Only when a fire occurs will the pre-action system 102 supply fire-extinguishing medium into the fire-fighting pipe 400 for the fire-fighting sprinkler 300 to perform a spraying and fire-fighting operation, thereby effectively reducing the risk of accidental spraying and enabling the fire-fighting sprinkler 300 to burst and perform a timely spraying and fire-fighting operation when a fire occurs.

[0086] Please refer to Figures 1 to 4 In some embodiments, the response time index RTI of the fire sprinkler 300 is: RTI<50; the coefficient K of the fire sprinkler 300 is: K14.

[0087] The Response Time Index (RTI) of the fire sprinkler 300 is an important indicator to measure the response speed of the automatic sprinkler system when a fire occurs. A lower RTI value means that the fire sprinkler 300 can respond to the fire in a shorter time and release water in time to extinguish the fire; a higher RTI value means a slower response.

[0088] In the standard "Automatic sprinkler fire extinguishing system Part 1: Sprinkler head" GB5135.1-2019, it is called the response time coefficient. The calculation formula of RTI is: RTI = τμ^0.5, where τ represents the time constant of the thermal sensitive element in seconds (s), and μ represents the gas flow rate in meters per second (m / s).

[0089] In this embodiment, the response time index RTI of the fire sprinkler 300 is set to RTI<50, that is, a fire sprinkler 300 with a response time index RTI less than 50 is selected so that the fire sprinkler 300 has a faster response speed.

[0090] The coefficient K of the fire sprinkler 300 refers to the ability of the fire sprinkler 300 to spray water under unit pressure, and is an important parameter for measuring the fire extinguishing efficiency of the fire sprinkler 300. This coefficient is used to describe the relationship between the flow rate and pressure of the fire sprinkler 300. The larger the K value, the greater the flow rate of the sprinkler, and the more water is sprayed under the same pressure; the smaller the K value, the smaller the flow rate of the sprinkler.

[0091] In this embodiment, the coefficient K of the fire sprinkler 300 is set to K14. The flow rate of the fire sprinkler 300 with a K value of 14 is relatively large, so that the fire sprinkler 300 can spray a larger flow of water to extinguish the fire, thereby improving the success rate of fire extinguishing.

[0092] With such a configuration, a fire sprinkler 300 with a response time index RTI < 50 and a coefficient K of K14 is selected, so that the fire sprinkler 300 has a better spraying and fire extinguishing effect.

[0093] Please refer to Figures 1 to 4 In some embodiments, the working pressure of the fire sprinkler 300 is between 0.35 MPa and 0.8 MPa; the minimum working flow rate of the fire sprinkler 300 is greater than or equal to 34.3 L / min.

[0094] In this embodiment, the fire sprinkler 300 uses a working pressure range between 0.35 MPa and 0.8 MPa; within this pressure range, the fire sprinkler 300 can work effectively.

[0095] At the same time, the fire sprinkler 300 uses a minimum working flow rate of 34.3 L / min to ensure that the fire sprinkler 300 can effectively extinguish fires and meet the basic requirements of the standard for fire extinguishing effects.

[0096] With such configuration, the working pressure of the fire sprinkler 300 is between 0.35 MPa and 0.8 MPa, and the minimum working flow rate of the fire sprinkler 300 is greater than or equal to 34.3 L / min. Thus, the fire sprinkler 300 has a better fire extinguishing effect.

[0097] Please refer to Figures 1 to 4 In some embodiments, the fire sprinkler 300 is configured to generate water mist with a fog cone angle between 145° and 155°.

[0098] The cone angle refers to the diffusion angle formed by the water mist sprayed from the fire sprinkler 300. This angle determines the size of the spraying area that the fire sprinkler 300 can cover; the larger the cone angle, the wider the coverage area of ​​the water mist formed by the spraying.

[0099] In this embodiment, the cone angle of the water mist formed by the fire sprinkler 300 is between 145° and 155°, that is, the diffusion angle range of the water mist formed by the fire sprinkler 300 is 145° to 155°. In other words, the water mist will diffuse at a relatively wide angle, covering a larger area to form a larger spraying area.

[0100] With such arrangement, by selecting the fire sprinkler 300 that can generate water mist with a fog cone angle between 145° and 155°, the fire sprinkler 300 has a larger coverage area and a better spraying and fire extinguishing effect.

[0101] Please refer to Figures 1 to 4 In some embodiments, the fire sprinkler 300 is configured to generate water mist having a water droplet volume diameter less than 800 μm.

[0102] The water droplet volume diameter is a way to describe the size of water droplets. It refers to the volume diameter of water droplets in the distribution of all water droplet volumes. In the water mist formed by spraying, the water droplet volume diameter is less than 800μm, which means that most of the water droplets are small in size and in an atomized state.

[0103] It should be understood that fine water droplets can take away more heat through evaporation. The water droplets produced during the spraying process absorb a lot of heat when evaporating, so smaller water droplets can exchange heat more efficiently, quickly cool the fire source, and help control and extinguish the fire.

[0104] In this embodiment, the fire sprinkler 300 is selected to spray water mist with a water droplet volume diameter of less than 800 μm. In this way, the fire sprinkler 300 has a better effect of spraying and extinguishing fire.

[0105] Exemplarily, in some embodiments, the fire sprinkler 300 may be a low-pressure water mist sprinkler that can produce water mist droplets with a diameter Dv0.90 less than 800 μm, which means that in the distribution of water mist droplets formed by the spraying, 90% of the water droplets have a diameter less than or equal to 800 μm.

[0106] With such configuration, a fire sprinkler 300 capable of generating water mist with a water droplet volume diameter of less than 800 μm is selected, and the fire sprinkler 300 has a better spraying and fire extinguishing effect.

[0107] Please refer to Figures 1 to 4 In some embodiments, the temperature level of the nozzle is d, the working environment temperature inside the storage location 200 is f, and f+30°C≤d≤f+60°C.

[0108] The temperature level refers to the maximum ambient temperature range that the fire sprinkler 300 can withstand when working; when the ambient temperature reaches or exceeds the temperature level of the sprinkler, the fire sprinkler 300 will explode and start spraying to extinguish the fire.

[0109] The working environment temperature f inside the storage location 200 refers to the temperature inside the storage location 200 under normal working conditions.

[0110] In this embodiment, the temperature level d of the nozzle is set to be greater than or equal to the range of 30°C to 60°C of the working environment temperature f inside the storage location 200; in this way, when a fire occurs inside the storage location 200, the real-time temperature inside the storage location 200 will rise sharply. When the real-time temperature inside the storage location 200 rises to a range higher than the working environment temperature f inside the storage location 200 by 30°C to 60°C, the fire sprinkler 300 will explode and spray.

[0111] Such a configuration can balance the reliability and response speed of the sprinkler, so that the probability of the fire sprinkler 300 being falsely activated due to changes in ambient temperature in actual use is effectively reduced, and the sprinkler can respond quickly and effectively and spray when a fire occurs.

[0112] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments, a plurality of storage locations 200 are stacked along the gravity direction G to form at least one storage location column group 201; the fire protection pipeline 400 includes a storage location partitioning pipe 410 and a storage location internal branch pipe 420, and a plurality of storage location internal branch pipes 420 are arranged on the storage location partitioning pipe 410, and the fire protection sprinkler 300 is arranged on the storage location internal branch pipe 420, and the plurality of storage location internal branch pipes 420 extend into the corresponding storage locations 200 respectively.

[0113] It should be understood that in the chemical separation and capacity device 1000 , a plurality of storage locations 200 may be stacked along the gravity direction G to form a storage location array group 201 , and the plurality of storage locations 200 in the storage location array group 201 may be independently subjected to chemical separation and capacity operations.

[0114] The fire-fighting pipeline 400 includes a storage location partition pipe 410 and a storage location branch pipe 420; wherein, the storage location partition pipe 410 refers to a main pipeline arranged outside the storage location 200, and the fire-extinguishing medium provided by the low-pressure water mist fire-extinguishing system 100 can be supplied to the storage location partition pipe 410, and then distributed to each storage location 200 by the storage location partition pipe 410.

[0115] The internal branch pipe 420 of the storage location refers to a branch pipe connected to the storage location partition pipe 410. The storage location partition pipe 410 can distribute the fire extinguishing medium to the internal branch pipe 420 of the storage location, and then introduce it into the corresponding storage location 200 through the internal branch pipe 420 of the storage location. When a fire occurs, the fire sprinkler 300 arranged on the internal branch pipe 420 of the storage location can spray the fire extinguishing medium to realize the fire extinguishing operation.

[0116] It is understandable that, since the low-pressure water mist fire extinguishing system 100 can provide low-pressure water as a fire extinguishing medium, the storage location partition pipe 410 and the storage location branch pipe 420 can be made of injection molded pipes, conventional steel pipes and other materials, which have relatively low costs.

[0117] With such an arrangement, the low-pressure water mist fire extinguishing system 100 can supply the fire extinguishing medium to the storage location partition pipe 410, and the storage location partition pipe 410 can introduce the fire extinguishing medium to the multiple storage location internal branch pipes 420. In this way, the multiple storage location internal branch pipes 420 can provide the fire extinguishing medium to the corresponding storage location 200, so that each storage location 200 can be sprayed with a fire sprinkler 300 to extinguish the fire in the event of a fire.

[0118] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments, the storage location column groups 201 are arranged in sequence to form multiple columns, and a storage location partitioning pipe 410 is arranged between at least two adjacent columns of storage location column groups 201; the storage location internal branch pipes 420 arranged on the storage location partitioning pipe 410 respectively extend into multiple storage locations 200 of two adjacent columns of storage location column groups 201; the length direction of the storage location partitioning pipe 410 is arranged along the gravity direction G.

[0119] The number of columns of the storage location column group 201 can be multiple columns, such as two columns, three columns or any number of columns above three columns. The multiple columns of the storage location column group 201 can be arranged in sequence along any direction, such as in the horizontal direction and along the width direction of the storage location 200.

[0120] In this embodiment, the length direction of the storage location partitioning pipe 410 is arranged along the gravity direction G, that is, the storage location partitioning pipe 410 can be distributed between two adjacent storage location column groups 201 using a vertical pipe body. In this way, the storage location partitioning pipe 410 occupies less space in the arrangement direction of the multiple storage location column groups 201, thereby effectively improving the compactness of the chemical separation and storage equipment 1000 and reducing the overall volume of the chemical separation and storage equipment 1000.

[0121] The storage location partition pipe 410 is provided with an internal branch pipe 420; optionally, the storage location partition pipe 410 and the internal branch pipe 420 can be made of ordinary steel pipes or metal hoses, and the storage location partition pipe 410 and the internal branch pipe 420 can be connected by a mechanical four-way (such as a four-way valve) to achieve the purpose of conduction.

[0122] In this embodiment, a storage location partitioning pipe 410 is arranged between at least two adjacent storage location column groups 201. Exemplarily, when there are two columns of storage location column groups 201, the storage location partitioning pipe 410 can be arranged between the two columns of storage location column groups 201, and the multiple storage location internal branch pipes 420 arranged on the storage location partitioning pipe 410 can extend into multiple storage locations 200 of the two columns of storage location column groups 201; or, when there are three columns of storage location column groups 201, the storage location partitioning pipe 410 can be arranged between two adjacent columns of storage location column groups 201, and the storage location partitioning pipe 410 can be arranged on either side of the other column of storage location column groups 201, and the two storage location partitioning pipes 410 are used to provide fire extinguishing medium to the storage locations 200 in the three columns of storage location column groups 201.

[0123] With such arrangement, when there are multiple columns of storage location column groups 201, the storage location partitioning pipe 410 can be arranged between two adjacent columns of storage location column groups 201 and simultaneously provide fire extinguishing medium to the two adjacent columns of storage location column groups 201, thereby optimizing the layout of the storage location partitioning pipe 410 to reduce the use of the storage location partitioning pipe 410 and reduce material costs.

[0124] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments, the diameter of the storage location partitioning pipe 410 is greater than or equal to 80 mm; the diameter of the storage location branch pipe 420 is greater than or equal to 25 mm.

[0125] In this way, the diameter of the storage location partitioning pipe 410 is set to be greater than or equal to 80 mm, so that the storage location partitioning pipe 410 can provide sufficient water and maintain appropriate water pressure; at the same time, the diameter of the internal branch pipe 420 of the storage location is set to be greater than or equal to 25 mm, so that the internal branch pipe 420 of the storage location can provide sufficient water to the storage location 200 and maintain appropriate water pressure for the spraying fire extinguishing operation of the fire sprinkler 300.

[0126] Next, the chemical fractionation and content separation device 1000 provided in the present application will be further described according to specific implementation methods.

[0127] Please refer to Figures 1 to 7 In this embodiment, the chemical fractionation equipment 1000 includes a low-pressure water mist fire extinguishing system 100 and a plurality of storage locations 200. A tray 3000 for placing battery cells 2000 is arranged inside the storage location 200. A plurality of fire sprinklers 300 are distributed inside the storage location 200. The fire sprinklers 300 are connected to the low-pressure water mist fire extinguishing system 100 through a fire pipeline 400. The fire sprinklers 300 have a spraying area, and the spraying areas of the plurality of fire sprinklers 300 are configured to cover the tray 3000 together. The above-mentioned low-pressure water mist fire extinguishing system 100 can be a wet system 101 or a pre-action system 102.

[0128] A needle bed assembly 210 is also provided inside the storage location 200, and the tray 3000 is located within the operating range of the needle bed assembly 210; the fire sprinkler 300 is located outside the operating range of the needle bed assembly 210, and / or the fire sprinkler 300 is located at the center of the needle bed assembly 210. In the gravity direction G, the bottom height of the fire sprinkler 300 is greater than or equal to the bottom height of the probe 211; and the distance between the bottom of the fire sprinkler 300 and the tray 3000 is p, and p≥50mm.

[0129] Among them, the fire sprinkler 300 can use a low-pressure water mist sprinkler. The response time index RTI of the fire sprinkler 300 is: RTI <50; the coefficient K of the fire sprinkler 300 is: K14. Exemplarily, the working pressure of the fire sprinkler 300 is between 0.35 Mpa and 0.8 Mpa; the minimum working flow rate of the fire sprinkler 300 is greater than or equal to 34.3 L / min. The fire sprinkler 300 is configured to be able to generate water mist with a fog cone angle between 145° and 155°. The fire sprinkler 300 is configured to be able to generate water mist with a droplet volume diameter of less than 800 μm. The temperature grade of the fire sprinkler 300 is d, and the working environment temperature inside the storage location 200 is f, f+30℃≤d≤f+60℃.

[0130] In this way, the fire sprinkler 300 has a better spraying fire extinguishing effect in the storage location 200, and the low-pressure water mist fire extinguishing system 100 supplies the fire extinguishing medium at low pressure, and the amount of fire extinguishing medium used is lower, thereby reducing the amount of residual water stains inside the chemical fractionation equipment 1000; at the same time, the fire-fighting pipeline 400 can use conventional pipelines, which are lower in cost than high-pressure resistant pipelines.

[0131] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A chemical fractionation device, characterized in that: The chemical fractionation equipment comprises a low-pressure water mist fire extinguishing system and a plurality of storage locations, wherein a tray for placing battery cells is arranged inside the storage location, and a plurality of fire sprinklers are distributed inside the storage location, and the fire sprinklers are connected to the low-pressure water mist fire extinguishing system through fire pipes; the fire sprinklers have a spraying area, and the spraying areas of the plurality of fire sprinklers are configured to cover the tray together; A needle bed assembly is also provided inside the storage location, and the tray is located within the operating range of the needle bed assembly; the fire sprinkler is located outside the operating range of the needle bed assembly; and / or the fire sprinkler is located at the center of the needle bed assembly.

2. The chemical fractionation equipment according to claim 1, characterized in that: The needle bed assembly is provided with a probe, and in the gravity direction, the bottom height of the fire sprinkler head is greater than or equal to the bottom height of the probe.

3. The chemical fractionation equipment according to claim 2, characterized in that: In the gravity direction, the distance between the bottom of the fire sprinkler and the tray is p, where p≥50 mm.

4. The chemical fractionation equipment according to claim 3, characterized in that: In the gravity direction, the spraying direction of the fire sprinkler head is downward, and the distance between the bottom of the fire sprinkler head and the bottom of the probe is m, wherein 10 mm≤m≤20 mm.

5. The chemical fractionation equipment according to claim 3, characterized in that: In the gravity direction, the spraying direction of the fire sprinkler head is upward, and the distance between the top of the fire sprinkler head and the bottom of the probe is n, wherein 20 mm≤n≤50 mm.

6. The chemical fractionation equipment according to claim 1, characterized in that: The low-pressure water mist fire extinguishing system comprises a wet system, which is connected to the fire sprinkler through the fire pipeline, and is used to provide fire extinguishing medium to the fire sprinkler.

7. The chemical fractionation equipment according to claim 1, characterized in that: The low-pressure water mist fire extinguishing system includes a pre-action system, which is connected to the fire sprinkler through the fire pipeline, and the pre-action system is used to provide fire extinguishing medium to the fire sprinkler.

8. The chemical fractionation equipment according to any one of claims 1 to 7, characterized in that: The response time index RTI of the fire sprinkler is: RTI<50; the coefficient K of the fire sprinkler is: K14.

9. The chemical fractionation equipment according to claim 8, characterized in that: The working pressure of the fire sprinkler is between 0.35Mpa and 0.8Mpa; the minimum working flow rate of the fire sprinkler is greater than or equal to 34.3L / min.

10. The chemical fractionation equipment according to claim 8, characterized in that: The fire sprinkler is configured to generate water mist with a fog cone angle between 145° and 155°.

11. The chemical fractionation equipment according to claim 8, characterized in that: The fire sprinkler is configured to generate water mist with a droplet volume diameter of less than 800 μm.

12. The chemical fractionation equipment according to any one of claims 1 to 7, characterized in that: The temperature grade of the nozzle is d, and the working environment temperature inside the storage location is f, f+30°C≤d≤f+60°C.

13. The chemical fractionation equipment according to any one of claims 1 to 7, characterized in that: The plurality of storage locations are stacked along the direction of gravity to form at least one storage location column group; the fire-fighting pipeline includes a storage location partitioning pipe and a storage location internal branch pipe, the storage location partitioning pipe is provided with a plurality of the storage location internal branch pipes, the fire-fighting sprinkler is provided on the storage location internal branch pipe, and the plurality of the storage location internal branch pipes respectively extend into the corresponding storage locations.

14. The chemical fractionation equipment according to claim 13, characterized in that: The storage location column groups are arranged in sequence to form multiple columns, and the storage location partitioning pipes are arranged between at least two adjacent columns of the storage location column groups; the storage location internal branch pipes arranged on the storage location partitioning pipes respectively extend into multiple storage locations of two adjacent columns of the storage location column groups; the length direction of the storage location partitioning pipes is arranged along the gravity direction.

15. The chemical fractionation equipment according to claim 14, characterized in that: The diameter of the storage location partition pipe is greater than or equal to 80 mm; the diameter of the branch pipe within the storage location is greater than or equal to 25 mm.

Images