Fire extinguishing system and formation and capacity grading equipment

Abstract

The invention relates to the technical field of battery production, and provides a fire extinguishing system and formation and capacity grading equipment, and the fire extinguishing system comprises a low-pressure fire extinguishing system, a water mist nozzle and at least two groups of fire alarm systems; the low-pressure fire extinguishing system is used for providing a fire extinguishing medium and is a pre-acting system, and the water mist spray head is arranged in a storage location and connected to a pre-acting pipeline through a fire fighting pipeline; the detection ends of the at least two groups of fire alarm systems are respectively arranged at different positions in the storage location and are electrically connected with the fire alarm controller of the pre-acting system; according to the fire extinguishing system provided by the embodiment of the invention, only when the at least two groups of fire alarm systems send the electric signals to the fire alarm controller of the pre-acting system at the same time, the fire alarm controller can open the control valve and the electric exhaust valve, so that the fire extinguishing medium can be guided into the fire extinguishing pipeline; and therefore, the water mist spray head can spray a fire extinguishing medium to realize fire extinguishing operation.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular provides a fire protection system and a chemical composition equipment. Background Art

[0002] In the production process of lithium batteries, a chemical composition process is required. In the chemical composition 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. Therefore, designing a fire protection system to deal with the fire hazard in the chemical composition process has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a fire fighting system and a battery cell capacity splitting device, which are intended to deal with the situation where a fire occurs in a battery cell during the battery cell capacity splitting process.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is: In the first aspect, an embodiment of the present application provides a fire protection system, which is applied to a storage location of a chemical fractionation equipment, and the fire protection system includes a low-pressure fire extinguishing system, a water mist nozzle and at least two groups of fire alarm systems; the low-pressure fire extinguishing system is used to provide a fire extinguishing medium, and the low-pressure fire extinguishing system is a pre-action system, and the pre-action system includes a pre-action pipeline, a fire alarm controller, and a control valve and an electric exhaust valve arranged on the pre-action pipeline, and the electric exhaust valve is located downstream of the control valve; the water mist nozzle is arranged in the storage location, and the water mist nozzle is connected to the part of the pre-action pipeline located downstream of the control valve through a fire protection pipeline; the detection ends of at least two groups of fire alarm systems are respectively arranged at different positions in the storage location, and at least two groups of fire alarm systems are electrically connected to the fire alarm controller, and the fire alarm controller is electrically connected to the control valve and the electric exhaust valve; wherein the fire alarm controller is configured to open the control valve and the electric exhaust valve when it simultaneously receives electrical signals sent by at least two groups of fire alarm systems, so that the water mist nozzle sprays the fire extinguishing medium.

[0005] Beneficial effects of the embodiments of the present application: The fire protection system provided by the embodiments of the present application, the low-pressure fire extinguishing system adopts a pre-action system. When at least two groups of fire alarm systems simultaneously send electrical signals to the fire alarm controller of the pre-action system, the fire alarm controller will open the control valve and the electric exhaust valve, so that the fire extinguishing medium can be introduced into the fire protection pipeline, so that the water mist nozzle can spray the fire extinguishing medium to realize the fire extinguishing operation, and at the same time, it can also effectively reduce the probability of false spraying caused by false alarm of the fire alarm system.

[0006] In some embodiments, the pre-action system also includes a low-pressure alarm device, the detection end of the low-pressure alarm device is arranged inside the pre-action pipeline and downstream of the control valve; the low-pressure alarm device is electrically connected to the fire alarm controller, and the fire alarm controller is configured to open the control valve and the electric exhaust valve when it receives the electrical signal sent by the low-pressure alarm device.

[0007] By adopting the above-mentioned technical solution, when the low-pressure alarm device detects a change in the air pressure in the fire-fighting pipeline, that is, the water mist nozzle is opened to discharge the gas in the fire-fighting pipeline, the low-pressure alarm device can send an electrical signal to the fire alarm controller to enable the fire alarm controller to open the control valve and the electric exhaust valve, so that the pre-action pipeline can supply water to the fire-fighting pipeline for the spraying operation of the water mist nozzle.

[0008] In some embodiments, the pre-action system also includes a terminal water test valve, which is arranged on the fire protection pipeline; after opening the terminal water test valve, the electric exhaust valve and the control valve, the pre-action pipeline supplies the fire extinguishing medium into the fire protection pipeline, and the time for the fire extinguishing medium to reach the terminal water test valve is less than 60 seconds.

[0009] By adopting the above technical solution, it is possible to test whether the fire extinguishing medium can be supplied normally through the terminal water test valve, and the time for the fire extinguishing medium to be supplied into the fire-fighting pipeline and reach the terminal water test valve is configured to be less than 60 seconds, so that the water mist nozzle can spray in time.

[0010] In some embodiments, a manual alarm button is provided on the fire alarm controller, and the manual alarm button is electrically connected to the fire alarm controller; the manual alarm button is configured to be able to open the control valve and the electric exhaust valve.

[0011] By adopting the above technical solution, the control valve and the electric exhaust valve can be opened by operating the manual alarm button to realize manual operation for fire extinguishing.

[0012] In some embodiments, the fire protection system further includes an audible and visual alarm, which is electrically connected to the fire alarm controller.

[0013] By adopting the above technical solution, the fire alarm controller can control the sound and light alarm to make sound and light alarms to remind emergency rescue personnel to enter the corresponding position.

[0014] In some embodiments, the control valve is a diaphragm valve, the water mist nozzle is a bursting nozzle, and before the bursting nozzle is activated, the internal air pressure of the fire protection pipeline is equal to the internal pressure in the pre-action pipeline.

[0015] By adopting the above-mentioned technical solution, when the fire alarm system is damaged, the bursting nozzle can burst under high temperature, thereby causing the pressure in the fire-fighting pipeline to change and cause the diaphragm valve to rupture and open the diaphragm valve, so that the fire-fighting medium can be introduced into the fire-fighting pipeline and sprayed by the water mist nozzle to realize the fire-fighting operation.

[0016] In some embodiments, at least one of the at least two fire alarm systems is an aspirating smoke detection system; and / or, at least one of the at least two fire alarm systems is an addressable point smoke fire alarm system.

[0017] By adopting the above technical solution, at least one set of aspirating smoke detection system and / or at least one set of addressable point smoke fire alarm system are used to monitor the interior of the storage location to achieve the purpose of rapid response to fire.

[0018] In some embodiments, when at least one of at least two fire alarm systems is an aspirating smoke detection system, the aspirating smoke detection system includes an aspirating smoke detection host, a sampling tube and a sampling branch tube, the sampling tube is connected to the aspirating smoke detection host, and the sampling tube extends into the storage location; at least one sampling branch tube is arranged on the sampling tube, and a sampling hole is opened on the sampling branch tube; the sampling branch tube is located in the storage location.

[0019] By adopting the above-mentioned technical solution, a sampling tube is extended into the storage location, and at least one sampling branch tube is arranged on the sampling tube. Sampling is carried out using the sampling holes opened on the sampling branch tube, so that the sampled gas is sent to the aspirating smoke detection host for detection to determine whether a fire occurs.

[0020] In some embodiments, when at least one of the at least two fire alarm systems is an addressable point smoke fire alarm system, the addressable point smoke fire alarm system includes an addressable point smoke detector, which is arranged at the top of the storage location.

[0021] By adopting the above technical solution, an addressable point smoke detector is arranged on the top of the storage space and is used to monitor the fire condition in the storage space.

[0022] In some embodiments, a tray for accommodating battery cells is provided in the storage location; a detection end of the fire alarm system is provided above the tray; and / or a detection end of the fire alarm system is provided outside the range of the tray.

[0023] By adopting the above-mentioned technical solution, the detection end of the fire alarm system can be set above the pallet to detect the battery cells placed on the pallet and judge the fire situation; and / or, the detection end of the fire alarm system can be set outside the range of the pallet, and detect and judge the fire situation of the entire storage location outside the range of the pallet.

[0024] In some embodiments, the fire protection pipeline includes a storage location partitioning pipe and an internal branch pipe. A plurality of internal branch pipes are arranged on the storage location partitioning pipe. The water mist nozzle is arranged on the internal branch pipe. The plurality of internal branch pipes extend into corresponding storage locations respectively.

[0025] By adopting the above-mentioned technical scheme, the low-pressure fire extinguishing system can supply the fire extinguishing medium to the storage location partition pipe, and the fire extinguishing medium can be introduced from the storage location partition pipe to the multiple storage location branch pipes. In this way, the multiple storage location branch pipes can provide the fire extinguishing medium to the corresponding storage location, so that each storage location can be sprayed with water mist nozzles for fire extinguishing in the event of a fire.

[0026] In some embodiments, the chemical fractionation equipment includes at least one column of storage location groups formed by at least two storage locations stacked along the direction of gravity; when the storage location column groups are arranged in sequence to form multiple columns, 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 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.

[0027] 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.

[0028] 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.

[0029] 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 spray fire extinguishing operation of the water mist nozzle.

[0030] In some embodiments, the fire protection system further includes a fire control center, the fire alarm system is electrically connected to the fire control center, and the fire alarm system is configured to send multi-level alarm signals.

[0031] By adopting the above technical solution, the fire alarm system can send multi-level alarm signals to the fire control center, so that different response actions can be performed for alarm signals of different levels.

[0032] In some embodiments, the fire control center is electrically connected to the control valve and the electric exhaust valve.

[0033] By adopting the above technical solution, the fire control center can directly open the control valve and the electric exhaust valve to realize the fire extinguishing operation.

[0034] In some embodiments, the fire alarm controller is electrically connected to a fire control center, and the fire alarm controller is configured to upload monitoring information to the fire control center.

[0035] By adopting the above technical solution, the fire alarm controller can monitor the electrically connected fire alarm system, control valve, electric exhaust valve, etc. and upload the monitoring information to the fire control center for staff to view.

[0036] In a second aspect, an embodiment of the present application further provides a chemical fractionation device, comprising a plurality of storage locations and a fire protection system as described above, wherein a water mist nozzle of the fire protection system and a detection end of the fire alarm system are arranged in the storage locations.

[0037] Beneficial effects of the embodiments of the present application: The chemical fractionation and containment equipment provided in the embodiments of the present application includes the above-mentioned fire protection system. In this way, the chemical fractionation and containment equipment can use the fire protection system to deal with the fire in the event of a fire, so as to reduce the losses caused by the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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.

[0039] Figure 1 A schematic diagram of a fire protection system provided in an embodiment of the present application; Figure 2 A schematic diagram of the distribution of detection terminals of the first fire alarm system provided in an embodiment of the present application within a storage location; Figure 3 A schematic diagram of the distribution of detection terminals of the second fire alarm system provided in an embodiment of the present application within a storage location; Figure 4 A schematic diagram of the distribution of detection terminals of the third fire alarm system provided in an embodiment of the present application within a storage location; Figure 5 A schematic diagram of the structure of the part of the aspirating smoke detection system provided in the embodiment of the present application within the storage location; Figure 6 A schematic diagram of the distribution of the aspirating smoke detection system and the addressable point smoke fire alarm system provided in the embodiment of the present application within a storage location; Figure 7A schematic diagram of the structure of a chemical fractionation and capacity separation device provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure inside a storage location provided in an embodiment of the present application.

[0040] Among them, the reference numerals in the figure are: 1000, fire protection system; 2000, chemical component capacity equipment; 2100, storage location; 2110, needle bed assembly; 2120, probe; 2200, storage location array group; 3000, battery cell; 4000, pallet; 100, low-pressure fire extinguishing system; 100a, fire pump room; 100b, fire pipe network; 120, pre-action system; 121, pre-action pipeline; 122, control valve; 122a, diaphragm valve; 123, fire alarm controller; 124, electric exhaust valve; 125, terminal water test valve; 200, water mist nozzle; 300, fire alarm system; 301, detection end; 310, aspirating smoke detection system; 311, sampling tube; 312, sampling branch pipe; 312a, sampling hole; 320, addressable point smoke fire alarm system; 321, addressable point smoke detector; 400, fire protection pipeline; 410, storage location partition pipe; 420, storage location branch pipe; G. Direction of gravity. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] During the production process of batteries, the batteries need to undergo a formation process. Formation 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. Therefore, designing a fire protection system to deal with the fire hazards in the formation process has become a technical problem that needs to be solved urgently.

[0047] Based on the above considerations, in order to cope with the situation where a fire occurs in a battery cell during the composition process, a fire protection system is designed, in which the water mist nozzle and the detection end of the fire alarm system are respectively arranged in the storage position, and the low-pressure fire extinguishing system adopts a pre-action system, by electrically connecting at least two groups of fire alarm systems with the fire alarm controller of the pre-action system; in this way, when a fire occurs, when at least two groups of fire alarm systems simultaneously send electrical signals to the fire alarm controller of the pre-action system, the fire alarm controller will open the control valve and the electric exhaust valve, so that the fire extinguishing medium can be introduced into the fire-fighting pipeline, so that the water mist nozzle can spray the fire extinguishing medium to realize the fire extinguishing operation; in this way, precise spraying can be achieved, and the probability of false spraying caused by false alarm of the fire alarm system can be effectively reduced.

[0048] The fire protection system provided in the present application can be, but is not limited to, used in the storage location of chemical component storage equipment; illustratively, the fire protection system can also be used in places such as shelves and warehouses for storing items such as battery cells that may pose a fire hazard.

[0049] For ease of explanation and understanding, the fire protection system provided by the present application will be described in detail below by taking the example of being used in a storage location for chemical fractionation equipment.

[0050] Please refer to Figure 1 and Figure 8 The embodiment of the present application provides a fire protection system 1000, which is applied to a storage location 2100 of a chemical component storage device 2000. The fire protection system 1000 includes a low-pressure fire extinguishing system 100, a water mist nozzle 200 and at least two groups of fire alarm systems 300; the low-pressure fire extinguishing system 100 is used to provide a fire extinguishing medium, and the low-pressure fire extinguishing system 100 is a pre-action system 120, which includes a pre-action pipeline 121, a fire alarm controller 123, and a control valve 122 and an electric exhaust valve 124 arranged on the pre-action pipeline 121, and the electric exhaust valve 124 is located downstream of the control valve 122; the water mist nozzle 200 is arranged in the storage location 2100, and the water mist nozzle 200 is arranged in the storage location 2100. In position 2100, the water mist nozzle 200 is connected to the part of the pre-action pipeline 121 located downstream of the control valve 122 through the fire protection pipeline 400; the detection ends 301 of at least two groups of fire alarm systems 300 are respectively arranged at different positions in the storage position 2100, and at least two groups of fire alarm systems 300 are electrically connected to the fire alarm controller 123, and the fire alarm controller 123 is electrically connected to the control valve 122 and the electric exhaust valve 124; wherein, the fire alarm controller 123 is configured to open the control valve 122 and the electric exhaust valve 124 when it receives electrical signals sent by at least two groups of fire alarm systems 300 at the same time, so that the water mist nozzle 200 sprays the fire extinguishing medium.

[0051] The fire protection system 1000 is applied to the storage location 2100 of the chemical separation and capacity device 2000; the storage location 2100 refers to the position or area inside the chemical separation and capacity device 2000 for storing the battery cells 3000 and performing chemical separation and capacity operations on the battery cells 3000. The number of storage locations 2100 can be one or more, for example, two, three or any number of more than three; multiple storage locations 2100 can be stacked and distributed in the longitudinal direction, or multiple storage locations 2100 can also be arranged and distributed in sequence in the horizontal direction; or, multiple storage locations 2100 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.

[0052] The fire fighting system 1000 includes a low-pressure fire extinguishing system 100, a water mist nozzle 200 and a fire alarm system 300; wherein the low-pressure fire extinguishing system 100 refers to a system that is activated when a fire occurs and supplies a fire extinguishing medium into a fire fighting pipeline 400 for the water mist nozzle 200 to spray and extinguish the fire. It can be understood that the low-pressure fire extinguishing system 100 includes a fire fighting pump room 100a and a fire fighting pipe network 100b, and the fire extinguishing medium is pumped into the fire fighting pipe network 100b and introduced into the fire fighting pipeline 400 through the sprinkler pump in the fire fighting pump room 100a.

[0053] Optionally, the low-pressure 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. Among them, the low pressure in the low-pressure 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. In this way, on the basis of using the low-pressure fire extinguishing system 100, the fire fighting pipe network 100b of the low-pressure fire extinguishing system 100 itself and the fire fighting pipe 400 connected to the low-pressure fire extinguishing system 100 can all adopt conventional pipe structures, such as injection molded pipes, steel pipes, etc. Compared with high-strength steel pipes, alloy steel pipes and other materials used in high-pressure environments, the cost is lower.

[0054] In this embodiment, the low-pressure fire extinguishing system 100 adopts a pre-action system 120. The pre-action system 120 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 120 is usually electrically connected to the fire alarm system 300; when the fire alarm system 300 detects signs of fire (such as smoke or abnormal temperature rise), the fire alarm system 300 will send an electrical signal. At this time, after receiving the electrical signal, the fire alarm controller 123 of the pre-action system 120 will control the electric exhaust valve and the control valve 122 to open, so that the pre-action pipeline 121 of the pre-action system 120 supplies fire extinguishing medium (taking fire water as an example) into the fire pipeline 400 for spraying by the water mist nozzle 200. When the water mist nozzle 200 is opened by explosion under the action of high temperature, or opened by the action of an electrical signal, the water mist nozzle 200 can spray fire water in time to deal with the fire.

[0055] The pre-action system 120 includes a pre-action pipeline 121; the pre-action pipeline 121 is connected to the fire pipeline 400 and is used to supply fire water to the fire pipeline 400. It should be understood that in some embodiments, the pre-action pipeline 121 may refer to a pipeline structure in the fire pipe network 100b, and the pre-action system 120 also includes a fire pump room 100a, which includes a water supply tank for providing a water source and a sprinkler pump disposed in the water supply tank; in this way, the pre-action pipeline 121 is connected to the sprinkler pump, and the sprinkler pump is used to pump fire water into the pre-action pipeline 121.

[0056] The fire alarm controller 123 is a device for monitoring and controlling the fire alarm system 300. It is usually connected to various detectors (such as smoke detectors, temperature detectors, etc.) and alarm devices (such as alarm bells, flashing lights, etc.) to receive signals from the detectors and respond according to preset logic.

[0057] The electric exhaust valve 124 is a valve structure that opens or closes the exhaust channel through an electric drive device. The electric exhaust valve 124 is located downstream of the control valve 122; it should be understood that in the initial state, the control valve 122 is in a closed state, at which time the pre-action pipeline 121 located downstream of the control valve 122 is connected to the fire-fighting pipeline 400, and the pre-action pipeline 121 located downstream of the control valve 122 and the fire-fighting pipeline 400 will be filled with gas to ensure a certain air pressure inside. When it is necessary to supply fire-fighting medium into the fire-fighting pipeline 400, it is necessary to open the electric exhaust valve 124 and exhaust the gas inside the fire-fighting pipeline 400 so that the fire-fighting medium can be smoothly introduced.

[0058] The pre-action system 120 further includes a control valve 122, which is disposed on the pre-action pipeline 121. Optionally, the control valve 122 may be, but is not limited to, a pneumatic control valve 122, an electric control valve 122, etc. It should be understood that in the initial state, the control valve 122 is in a closed state, and at this time, the pre-action pipeline 121 cannot supply fire-fighting water into the fire-fighting pipeline 400. When the detection end 301 of the fire alarm system 300 detects a fire, the fire alarm system 300 can send an electrical signal to the fire alarm controller 123, so that the fire alarm controller 123 opens the control valve 122 and the electric exhaust valve 124, so that the pre-action pipeline 121 supplies fire-fighting water into the fire-fighting pipeline 400, so as to supply the water mist nozzle 200 with water for spraying and extinguishing the fire after opening at high temperature.

[0059] The water mist nozzle 200 is used to spray the fire extinguishing medium; optionally, the water mist nozzle 200 can be a temperature-responsive nozzle, that is, when the ambient temperature reaches a preset value, the water mist nozzle 200 automatically explodes to spray the fire extinguishing operation; or, the water mist nozzle 200 can also be an electrical response nozzle, that is, the fire alarm system 300 monitors the occurrence of fire and starts the water mist nozzle 200 spraying operation through an electrical signal. Exemplarily, in some embodiments, the water mist nozzle 200 can be a low-pressure atomizing nozzle, and when the ambient temperature reaches a preset value, the low-pressure atomizing nozzle explodes to start the spraying operation.

[0060] The water mist nozzle 200 is arranged in the storage position 2100; optionally, the number of the water mist nozzle 200 can be one, two or more than two. The water mist nozzle 200 is connected to the low-pressure fire extinguishing system 100 through the fire pipe 400, so that one end of the fire pipe 400 can extend into the storage position 2100, and the water mist nozzle 200 is arranged on the part of the fire pipe 400 located in the storage position 2100.

[0061] The fire alarm system 300 refers to a system for detecting whether a fire occurs in the storage location 2100; the detection end 301 of the fire alarm system 300 refers to the part of the fire alarm system 300 for performing sampling or monitoring operations. When the fire alarm system 300 detects a fire occurs inside the storage location 2100 through its detection end 301, the fire alarm system 300 can send an electrical signal to the low-pressure fire extinguishing system 100, so that the low-pressure fire extinguishing system 100 pumps a fire extinguishing medium into the fire fighting pipeline 400 for the spraying operation of the water mist nozzle 200.

[0062] It can be understood that the detection end 301 of the fire alarm system 300 refers to a terminal part used to perform sampling operations or detection operations. Exemplarily, the detection end 301 of the fire alarm system 300 may refer to a sampling pipeline, through which the gas inside the storage location 2100 is sampled through the sampling holes provided on the sampling pipeline, so that the fire alarm system 300 can judge the fire situation; or, the detection end 301 of the fire alarm system 300 may also refer to a sensor terminal such as a temperature detector or a flame detector, which is used to detect temperature changes or infrared or ultraviolet spectra radiated by flames to identify fires.

[0063] In this embodiment, the number of fire alarm systems 300 is at least two; optionally, the number of fire alarm systems 300 may be two, three, or any number of groups above three. The detection terminals 301 of the multiple fire alarm systems 300 are respectively located at different positions in the storage location 2100 to monitor different positions in the storage location 2100, thereby effectively improving the accuracy of fire detection by the fire alarm system 300.

[0064] The types of at least two fire alarm systems 300 may be the same; for example, both of the at least two fire alarm systems 300 may use smoke detection alarms, or both of the at least two fire alarm systems 300 may use temperature detectors, etc. Alternatively, the types of at least two fire alarm systems 300 may be different; for example, at least one of the at least two fire alarm systems 300 may use smoke detection alarms, and at least another of the at least two fire alarm systems 300 may use temperature detectors, etc.

[0065] At least two groups of fire alarm systems 300 are electrically connected to the fire alarm controller 123, and the fire alarm controller 123 is configured to open the control valve 122 and the electric exhaust valve 124 when receiving electrical signals from at least two groups of fire alarm systems 300 at the same time; in this way, when one group of fire alarm systems 300 sends an electrical signal to the fire alarm controller 123, the control valve 122 and the electric exhaust valve 124 are not opened; when at least two groups of fire alarm systems 300 send electrical signals to the fire alarm controller 123, the control valve 122 and the electric exhaust valve 124 will be opened, and the pre-action pipeline 121 can supply fire extinguishing medium to the fire fighting pipeline 400 to supply the water mist nozzle 200 with a spraying operation after opening. Therefore, when one group of fire alarm systems 300 generates a false alarm, the control valve 122 and the electric exhaust valve 124 will not be opened, thereby effectively reducing the occurrence of false spraying caused by the false alarm of the fire alarm system 300.

[0066] Exemplarily, in some embodiments, the number of fire alarm systems 300 can be two groups. When the two groups of fire alarm systems 300 send electrical signals to the fire alarm controller 123, the control valve 122 and the electric exhaust valve 124 are opened, and the pre-action pipeline 121 supplies the fire extinguishing medium into the fire fighting pipeline 400; or, in other embodiments, the number of fire alarm systems 300 can be three groups or more. In this case, it can be set that when the two groups of fire alarm systems 300 send electrical signals to the fire alarm controller 123, the control valve 122 and the electric exhaust valve 124 are opened, or when all the fire alarm systems 300 send electrical signals to the fire alarm controller 123, the control valve 122 and the electric exhaust valve are opened, so that the water mist nozzle 200 can spray the fire extinguishing medium to achieve the fire extinguishing operation.

[0067] In the fire protection system 1000 provided in the embodiment of the present application, the low-pressure fire extinguishing system 100 adopts a pre-action system 120. When at least two groups of fire alarm systems 300 simultaneously send electrical signals to the fire alarm controller 123 of the pre-action system 120, the fire alarm controller 123 will open the control valve 122 and the electric exhaust valve 124, so that the fire extinguishing medium can be introduced into the fire protection pipeline 400, so that the water mist nozzle 200 can spray the fire extinguishing medium to realize the fire extinguishing operation; at the same time, it can also effectively reduce the probability of false spraying caused by a false alarm of the fire alarm system 300.

[0068] Please refer to Figure 1In some embodiments, the pre-action system 120 further includes a low-pressure alarm device (not shown in the figure), the detection end of the low-pressure alarm device is arranged inside the pre-action pipeline 121 and downstream of the control valve 122; the low-pressure alarm device is electrically connected to the fire alarm controller 123, and the fire alarm controller 123 is configured to open the control valve 122 and the electric exhaust valve 124 when receiving the electrical signal sent by the low-pressure alarm device.

[0069] The low pressure alarm device is used to monitor the pressure change of the gas in the fire fighting pipeline 400. When the gas pressure in the fire fighting pipeline 400 is lower than the set safety range, the low pressure alarm device will promptly issue an alarm, for example, by sending an electrical signal to the fire alarm controller 123.

[0070] It should be understood that when the water mist nozzle 200 explodes in a high temperature environment, the gas in the fire fighting pipeline 400 will be discharged from the water mist nozzle 200 to the outside, thereby causing the gas pressure inside the fire fighting pipeline 400 to change.

[0071] When the low-pressure alarm device detects the pressure change of the gas in the fire-fighting pipeline 400, it means that the water mist nozzle 200 has been turned on and the external environment is a high-temperature environment. At this time, the low-pressure alarm device sends an electrical signal to the fire alarm controller 123, so that the fire alarm controller 123 opens the control valve 122 and the electric exhaust valve 124 in time, so that the pre-action pipeline 121 can timely introduce the fire extinguishing medium into the fire-fighting pipeline 400 to provide the water mist nozzle 200 with a spraying operation.

[0072] Such an arrangement can effectively improve the response speed of the pre-action system 120 in supplying the fire extinguishing medium into the fire fighting pipeline 400, thereby effectively improving the fire extinguishing efficiency.

[0073] Please refer to Figure 1 In some embodiments, the pre-action system 120 further includes a terminal water test valve 125, which is disposed on the fire-fighting pipeline 400; after the terminal water test valve 125, the electric exhaust valve 124 and the control valve 122 are opened, the pre-action pipeline 121 supplies the fire-fighting pipeline 400 with the fire-fighting medium, and the time for the fire-fighting medium to reach the terminal water test valve 125 is less than 60 seconds.

[0074] The terminal water test valve 125 is mainly used for detecting and testing the fire extinguishing medium; by opening the terminal water test valve 125, the water pressure and flow rate in the pre-action system 120 are detected and tested to see if they are normal.

[0075] With such arrangement, the terminal water test valve 125 can be used to test whether the fire extinguishing medium can be supplied normally, and the time for the fire extinguishing medium to be supplied into the fire fighting pipeline 400 and reach the terminal water test valve 125 is configured to be less than 60 seconds, so that the water mist nozzle 200 can spray in time.

[0076] Please refer to Figure 1 In some embodiments, a manual alarm button (not shown in the figure) is provided on the fire alarm controller 123, and the manual alarm button is electrically connected to the fire alarm controller 123; the manual alarm button is configured to open the control valve 122 and the electric exhaust valve 124.

[0077] The manual alarm button is electrically connected to the fire alarm controller 123; exemplarily, in some embodiments, by pressing the manual alarm button, the input signal of the fire alarm system 300 can be simulated to achieve the purpose of opening the control valve 122 and the electric exhaust valve 124, and introducing the fire extinguishing medium into the fire fighting pipeline 400.

[0078] Optionally, a manual alarm button can be set at the personnel operating station and the exit of the escape passage to facilitate the staff to press and operate it.

[0079] With such arrangement, the manual alarm button can be operated to control the opening of the control valve 122 and the electric exhaust valve 124, so as to realize manual operation for fire extinguishing.

[0080] Please refer to Figure 1 In some embodiments, the fire protection system 1000 further includes an audible and visual alarm (not shown in the figure), which is electrically connected to the fire alarm controller 123 .

[0081] The sound and light alarm refers to an alarm device that can emit sound signals and light signals. The number of the sound and light alarms can be one or more, and the sound and light alarms can be set at any location; for example, when there are multiple chemical separation and containment devices 2000, sound and light alarms can be set before and after each row of chemical separation and containment devices 2000 to indicate the location of the chemical separation and containment device 2000 where the fire occurs.

[0082] The sound and light alarm is electrically connected to the fire alarm controller 123; thus, the fire alarm controller 123 can control the sound and light alarm to sound an alarm to alert people around. For example, the fire alarm controller 123 can control the sound and light alarm to sound an alarm when receiving a signal from the fire alarm system.

[0083] With such configuration, the fire alarm controller 123 can control the sound and light alarm to give sound and light alarms to remind emergency rescue personnel to enter the corresponding position.

[0084] Please refer to Figure 1 In some embodiments, the control valve 122 is a diaphragm valve 122a, and the water mist nozzle 200 is a bursting nozzle; before the bursting nozzle is activated, the internal air pressure of the fire protection pipeline 400 is equal to the internal pressure in the pre-action pipeline 121.

[0085] The diaphragm valve 122a is a valve widely used in fluid control systems. Its working principle is to control the flow of fluid through a flexible diaphragm (usually made of rubber, polytetrafluoroethylene and other materials). The role of the diaphragm in the valve body is equivalent to the valve disc in a traditional valve.

[0086] It should be understood that in the initial state, the diaphragm valve 122a of the pre-action system 120 is in a closed state, and the pressure of the fire extinguishing medium in the pre-action pipeline 121 on one side of the diaphragm valve 122a is substantially the same as the air pressure in the fire fighting pipeline 400 on the other side of the diaphragm valve 122a. In this way, the diaphragm valve 122a can be used to cut off the communication between the pre-action pipeline 121 and the fire fighting pipeline 400, so that there is no fire extinguishing medium in the fire fighting pipeline 400 in the initial state.

[0087] When the fire alarm controller 123 receives electrical signals from at least two fire alarm systems 300 , it controls the diaphragm valve 122 a to open, and the pre-action pipeline 121 can supply fire extinguishing medium into the fire fighting pipeline 400 .

[0088] It should be understood that when the fire alarm system 300 fails and the diaphragm valve 122a cannot be opened normally, after a fire occurs, the bursting nozzle is started by bursting, and the gas inside the fire fighting pipeline 400 is discharged from the bursting nozzle, and the pressure on the two opposite sides of the diaphragm valve 122a will be unbalanced, causing the diaphragm valve 122a to rupture and open, thereby allowing the fire extinguishing medium to pass through the diaphragm valve 122a and be supplied to the fire fighting pipeline 400, and the water mist nozzle 200 performs spraying and extinguishing. In this way, it can be achieved that in the case of a failure of the fire alarm system 300, the pre-action system 120 can still supply the fire extinguishing medium.

[0089] With such arrangement, when the fire alarm system 300 is damaged, the bursting nozzle can burst under high temperature, thereby causing the pressure in the fire-fighting pipe 400 to change and cause the diaphragm valve 122a to rupture and open the diaphragm valve 122a, so that the fire-fighting medium can be introduced into the fire-fighting pipe 400 and sprayed by the water mist nozzle 200 to realize the fire-fighting operation; this can effectively improve the reliability of the fire-fighting system 1000.

[0090] Please refer to Figures 1 to 4 In some embodiments, at least one of the at least two fire alarm systems 300 is an aspirating smoke detection system 310 ; and / or, at least one of the at least two fire alarm systems 300 is an addressable point smoke fire alarm system 320 .

[0091] The basic principle of the aspirating smoke detection system 310 is to suck air samples from the monitoring area (i.e., storage location 2100) through a duct structure, and then use smoke detectors to analyze these air samples to detect smoke particles in the air. The aspirating smoke detection system 310 can detect fire hazards earlier and more accurately by sucking air samples and analyzing the smoke particles therein.

[0092] Optionally, among the at least two groups of fire alarm systems 300 , at least one group may adopt the aspirating smoke detection system 310 ; or, all of the multiple groups of fire alarm systems 300 may adopt the aspirating smoke detection system 310 .

[0093] The addressable point smoke fire alarm system 320 is different from the traditional conventional smoke fire alarm system. The addressable point smoke fire alarm system 320 can individually number (i.e. "address") each smoke detector in the system, so that each smoke detector has an independent address. The addressable point smoke fire alarm system 320 can accurately identify and display the status of each smoke detector (whether it is alarming, whether it is faulty, etc.); thereby, the location of the fire can be accurately determined, thereby improving the reliability and response speed of the system.

[0094] Exemplarily, when there are multiple storage locations 2100, each storage location 2100 is respectively provided with a smoke detector with a different number of the addressable point smoke fire alarm system 320; in this way, the storage location 2100 where the fire occurs can be quickly identified according to the alarm status of the smoke detectors with different numbers, so as to realize fast and accurate fire extinguishing operation on the storage location 2100 where the fire occurs.

[0095] Optionally, among the at least two groups of fire alarm systems 300 , at least one group may adopt an addressable point smoke fire alarm system 320 ; or, all of the multiple groups of fire alarm systems 300 may be addressable point smoke fire alarm systems 320 .

[0096] For example, in some embodiments, the number of fire alarm systems 300 is two groups, one of which uses an aspirating smoke detection system 310 and the other uses an addressable point smoke fire alarm system 320; in this way, the aspirating smoke detection system 310 is used to continuously inhale air samples in the storage location 2100 and perform real-time analysis on the smoke therein, thereby providing an earlier and more accurate fire warning than a traditional smoke detector; at the same time, the addressable point smoke fire alarm system 320 is used to achieve accurate fire alarm and positioning functions, so as to effectively reduce false alarms and improve the response speed and reliability of the system. That is, the addressable point smoke fire alarm system 320 plus the aspirating smoke detection system 310 are used to achieve the purpose of rapid response and accurate alarm to the internal alarm of the storage location 2100.

[0097] Please refer to Figures 1 to 5 In some embodiments, when at least one of the at least two fire alarm systems 300 is an aspirating smoke detection system 310, the aspirating smoke detection system 310 includes an aspirating smoke detection host (not shown in the figure), a sampling tube 311 and a sampling branch tube 312. The sampling tube 311 is connected to the aspirating smoke detection host, and the sampling tube 311 extends into the storage location 2100; at least one sampling branch tube 312 is provided on the sampling tube 311, and a sampling hole 312a is opened on the sampling branch tube 312; the sampling branch tube 312 is located in the storage location 2100.

[0098] The aspirating smoke detection host is the core component of the aspirating smoke detection system 310, which is responsible for receiving air samples transmitted from the sampling pipe 311 and the sampling branch pipe 312, and analyzing the smoke concentration in the air sample. It can be understood that the aspirating smoke detection host usually includes a sensor, which measures the concentration of smoke in the sample. If the concentration exceeds a set threshold, the host will send an alarm signal (for example, a signal for raising staff or an electrical signal for transmitting to the pre-action system 120, etc.).

[0099] The sampling tube 311 is used to connect to the aspirating smoke detector host and introduce sample air to the aspirating smoke detector host. The sampling branch tube 312 is used to connect to the sampling tube 311, and a sampling hole 312a is provided on the sampling branch tube 312 to facilitate sampling of air from the sampling hole 312a.

[0100] The sampling tube 311 extends into the storage location 2100, and the sampling branch tube 312 is located in the storage location 2100; that is, the sampling branch tube 312 is connected to the pipe section of the sampling tube 311 located in the storage location 2100. Optionally, one or more sampling branch tubes 312 may be respectively arranged in each storage location 2100, and the air inside the storage location 2100 may be sampled using the sampling holes 312a of the one or more sampling branch tubes 312.

[0101] The sampling branch pipe 312 can be arranged at any place in the storage location 2100; for example, the sampling branch pipe 312 can be arranged in the upper area of ​​the storage location 2100, so that the sampling hole 312a is located in the upper area inside the storage location 2100. For example, in some embodiments, a tray for placing battery cells 3000 is also provided in the storage location 2100; the sampling branch pipe 312 can be arranged in the central area inside the storage location 2100 and above the tray, so that the sampling hole 312a is located in the center of the storage location 2100 and above the tray, as shown in FIG. Figure 2 or Figure 3Alternatively, in other embodiments, the sampling branch tube 312 may be disposed inside the storage location 2100 and deviated from the center of the storage location 2100. For example, the sampling branch tube 312 may be located outside the range of the tray in the gravity direction. In this way, the sampling hole 312a is deviated from the center of the storage location 2100 and is located above the side of the tray. Figure 4 shown.

[0102] In this arrangement, the sampling tube 311 is extended into the storage position 2100, and at least one sampling branch tube 312 is set on the sampling tube 311. Sampling is performed using the sampling hole 312a opened on the sampling branch tube 312, so that the sampled gas is sent to the aspirating smoke detection host for detection to determine whether a fire occurs.

[0103] Please refer to Figures 1 to 4 In some embodiments, when at least one of the at least two fire alarm systems 300 is an addressable point smoke fire alarm system 320, the addressable point smoke fire alarm system 320 includes an addressable point smoke detector 321, which is arranged at the top of the storage location 2100.

[0104] The addressable point smoke detector 321 refers to a separate addressable point smoke detector 321 included in the addressable point smoke fire alarm system 320. Each addressable point smoke detector 321 has a unique address, can detect smoke or other fire indicators, and send data to the control center of the addressable point smoke fire alarm system 320 through a communication protocol.

[0105] In this embodiment, the addressable point smoke detector 321 can be set at the top of the storage location 2100, and the addressable point smoke detector 321 can be used to detect smoke at the top of the storage location 2100 and in the entire storage location 2100 to monitor the fire. For example, when there are multiple storage locations 2100, addressable point smoke detectors 321 with different addresses are respectively set inside the multiple storage locations 2100. In this way, when a fire occurs inside one of the storage locations 2100, the corresponding addressable point smoke detector 321 can be used to monitor and identify the corresponding storage location 2100, so as to achieve rapid and accurate fire extinguishing operations.

[0106] Please refer to Figures 1 to 4 In some embodiments, a tray 4000 for accommodating battery cells 3000 is provided in the storage location 2100; the detection end 301 of the fire alarm system 300 is disposed above the tray 4000; and / or, the detection end 301 of the fire alarm system 300 is disposed outside the range of the tray 4000.

[0107] It should be understood that the tray 4000 is used to place the battery cells 3000 , and the tray 4000 can be used to transport multiple battery cells 3000 into the storage location 2100 for cell division, or the tray 4000 can be used to transport multiple battery cells 3000 out of the storage location 2100 .

[0108] Among them, the detection end 301 of the fire alarm system 300 is arranged above the pallet 4000; specifically, it means that in the direction of gravity, the detection end 301 of the fire alarm system 300 is located above the pallet 4000, and the projection of the detection end 301 of the fire alarm system 300 is within the range of the pallet 4000.

[0109] For example, in some embodiments, when the fire alarm system 300 adopts the aspirating smoke detection system 310, the detection end 301 of the fire alarm system 300 is the sampling branch pipe 312 and the sampling hole 312a opened on the sampling branch pipe 312; the sampling hole 312a opened on the sampling branch pipe 312 of the aspirating smoke detection system 310 can be located above the tray 4000, such as Figure 2 or Figure 3 As shown, it is convenient to sample and detect the air from above the tray 4000.

[0110] In other embodiments, when the fire alarm system 300 adopts an addressable point smoke fire alarm system 320, the detection end 301 of the fire alarm system 300 is an addressable point smoke detector 321; the addressable point smoke detector 321 can be located above the pallet 4000, for example, installed at the top center of the storage location 2100, such as Figure 2 As shown, an addressable point smoke detector 321 is used to perform detection above the pallet 4000.

[0111] And / or, the detection end 301 of the fire alarm system 300 is arranged outside the range of the pallet 4000; specifically, it means that in the direction of gravity, the detection end 301 of the fire alarm system 300 is located above the pallet 4000, and the projection of the detection end 301 of the fire alarm system 300 is outside the range of the pallet 4000.

[0112] For example, in some embodiments, when the fire alarm system 300 adopts the aspirating smoke detection system 310, the detection end 301 of the fire alarm system 300 is the sampling branch pipe 312 and the sampling hole 312a opened on the sampling branch pipe 312; the sampling hole 312a opened on the sampling branch pipe 312 of the aspirating smoke detection system 310 can be located above the tray 4000 and the projection of the sampling branch pipe 312 and the sampling hole 312a in the gravity direction is located outside the tray 4000, such as Figure 4 As shown, it is convenient to sample and detect the air from above the outer periphery of the tray 4000.

[0113] In this way, the detection end 301 of the fire alarm system 300 can be set above the pallet 4000 to detect the battery cells 3000 placed on the pallet 4000 and judge the fire situation; and / or, the detection end 301 of the fire alarm system 300 can be set outside the range of the pallet 4000, and detect and judge the fire situation of the entire storage location 2100 outside the range of the pallet 4000.

[0114] Please refer to Figure 1 , Figures 6 to 8 In some embodiments, the fire protection pipeline 400 includes a storage location partitioning pipe 410 and a storage location internal branch pipe 420. A plurality of storage location internal branch pipes 420 are arranged on the storage location partitioning pipe 410. The water mist nozzle 200 is arranged on the storage location internal branch pipe 420. The plurality of storage location internal branch pipes 420 extend into corresponding storage locations 2100 respectively.

[0115] 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 2100, and the fire-extinguishing medium provided by the low-pressure fire-extinguishing system 100 can be supplied to the storage location partition pipe 410, and then distributed to each storage location 2100 by the storage location partition pipe 410.

[0116] 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 2100 through the internal branch pipe 420 of the storage location. When a fire occurs, the water mist nozzle 200 arranged on the internal branch pipe 420 of the storage location can spray the fire extinguishing medium to realize the fire extinguishing operation.

[0117] It is understandable that, since the low-pressure 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.

[0118] With such an arrangement, the low-pressure 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 2100, so that each storage location 2100 can be sprayed with a water mist nozzle 200 to extinguish the fire in the event of a fire.

[0119] Please refer to Figures 6 to 8In some embodiments, the chemical fractionation equipment 2000 includes at least one column of storage location group 2200 formed by stacking at least two storage locations 2100 along the gravity direction; when the storage location group 2200 is arranged in sequence to form multiple columns, a storage location partitioning pipe 410 is arranged between at least two adjacent columns of storage location group 2200; the storage location internal branch pipes 420 arranged on the storage location partitioning pipe 410 respectively extend into multiple storage locations 2100 of two adjacent columns of storage location group 2200; the length direction of the storage location partitioning pipe 410 is arranged along the gravity direction G.

[0120] It should be understood that in the chemical separation and capacity device 2000 , a plurality of storage locations 2100 may be stacked along the gravity direction to form a storage location array group 2200 , and the plurality of storage locations 2100 in the storage location array group 2200 may independently perform chemical separation and capacity operations.

[0121] The number of columns of the storage location column group 2200 can be one or more, such as one, two, three or more. The multiple columns of the storage location column group 2200 can be arranged in sequence along any direction, such as horizontally and along the width direction of the storage location 2100.

[0122] In this embodiment, a storage location partitioning pipe 410 is arranged between at least two adjacent storage location column groups 2200. Exemplarily, when there are two columns of storage location column groups 2200, a storage location partitioning pipe 410 may be arranged between the two columns of storage location column groups 2200, and a plurality of storage location internal branch pipes 420 arranged on the storage location partitioning pipe 410 may be extended into a plurality of storage locations 2100 of the two columns of storage location column groups 2200; or, when there are three columns of storage location column groups 2200, a storage location partitioning pipe 410 may be arranged between two adjacent columns of storage location column groups 2200, and a storage location partitioning pipe 410 may be arranged on either side of another column of storage location column groups 2200, and these two storage location partitioning pipes 410 may be used to provide fire extinguishing medium to the storage locations 2100 in the three columns of storage location column groups 2200.

[0123] At the same time, 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 2200 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 2200, which can effectively improve the compactness of the chemical separation and storage equipment 2000 and reduce the overall volume of the chemical separation and storage equipment 2000.

[0124] With such arrangement, when there are multiple columns of storage location column groups 2200, the storage location partitioning pipe 410 can be arranged between two adjacent columns of storage location column groups 2200 and simultaneously provide fire extinguishing medium to the two adjacent columns of storage location column groups 2200, 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.

[0125] Please refer to Figure 7 and Figure 8 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.

[0126] 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 and maintain appropriate water pressure into the storage location 2100 for the spray fire extinguishing operation of the water mist nozzle 200.

[0127] Please refer to Figure 1 In some embodiments, the fire protection system 1000 further includes a fire control center (not shown in the figure), the fire alarm system 300 is electrically connected to the fire control center, and the fire alarm system 300 is configured to send multi-level alarm signals.

[0128] The fire control center refers to a central platform that is responsible for receiving and processing data from various systems and equipment, and controlling and directing the work of other firefighting facilities. The fire control center is usually equipped with various monitoring equipment, a fire alarm system 300, and an operation interface to ensure that when a fire occurs, it can quickly respond and direct firefighting operations. Exemplarily, in some embodiments, the fire control center can be the fire control center of a factory building, and the chemical fractionation equipment 2000 is arranged in the factory building. The fire protection system 1000 can be linked with the fire control center of the factory building. For example, the fire alarm system 300 of the fire protection system 1000 is electrically connected to the fire control center, and the sprinkler head and low-pressure fire extinguishing system 100 of the fire protection system 1000 can also be electrically connected to the fire control center.

[0129] The fire alarm system 300 is configured to send a multi-level alarm signal; wherein the multi-level alarm signal refers to an alarm signal of multiple different levels. Exemplarily, in some embodiments, when the fire alarm system 300 is an aspirating smoke detection system 310, the aspirating smoke detection system 310 can send a multi-level alarm signal according to the detection situation of its aspirating smoke detection host. For example, the multi-level alarm signal may include an early warning, an action warning, a first-level fire alarm, a second-level fire alarm, etc.; wherein the early warning and the action warning can be set to not be linked to the fire control center of the factory building, and the first-level fire alarm and the second-level fire alarm can be set to be transmitted to the fire control center of the factory building for linkage fire fighting actions.

[0130] With such configuration, the fire alarm system 300 can send multi-level alarm signals to the fire control center, so that different response actions can be performed for alarm signals of different levels.

[0131] Please refer to Figure 1 In some embodiments, the fire control center is electrically connected to the control valve 122 and the electric exhaust valve 124 .

[0132] By directly and electrically connecting the fire control center to the control valve 122 and the electric exhaust valve 124, the fire control center can directly control the control valve 122 and the electric exhaust valve 124 without being interfered by the fire alarm controller 123. In this way, the controllability of the fire protection system can be effectively improved.

[0133] Please refer to Figure 1 In some embodiments, the fire alarm controller 123 is electrically connected to a fire control center, and the fire alarm controller 123 is configured to upload monitoring information to the fire control center.

[0134] It should be understood that the fire alarm controller 123 is capable of monitoring various electrically connected detectors (such as smoke detectors, temperature detectors, etc.) and alarm equipment (such as alarm bells, flashing lights, etc.); illustratively, the fire alarm controller 123 is capable of monitoring shielding information, fault information and other information of electrically connected control valves 122, electric exhaust valves 124, terminal water test valves 125, fire alarm systems, low-voltage alarm devices and other equipment.

[0135] At the same time, the fire alarm controller 123 can also upload monitoring information to the fire control center. The monitoring information includes but is not limited to the action status information, shielding information, fault information, etc. of the above-mentioned multiple devices.

[0136] With such arrangement, the fire alarm controller 123 can monitor the electrically connected fire alarm system, control valve 122, electric exhaust valve 124, etc. and upload the monitoring information to the fire control center for easy viewing by the staff.

[0137] Below, the fire protection system 1000 provided in this application will be further introduced according to specific implementation methods.

[0138] Please refer to Figures 1 to 8 In this embodiment, the fire protection system includes a low-pressure fire extinguishing system 100, a water mist nozzle 200 and a fire alarm system 300; the low-pressure fire extinguishing system 100 is used to provide a fire extinguishing medium, the water mist nozzle 200 is arranged in a storage position 2100, and the water mist nozzle 200 is connected to the low-pressure fire extinguishing system 100 through a fire protection pipeline 400; the detection end 301 of the fire alarm system 300 is arranged in the storage position 2100, and the fire alarm system 300 is electrically connected to the low-pressure fire extinguishing system 100.

[0139] The low-pressure fire extinguishing system 100 may adopt a pre-action system 120, which includes a pre-action pipeline 121, a fire alarm controller 123, and a control valve 122 and an electric exhaust valve 124 arranged on the pre-action pipeline 121, wherein the electric exhaust valve 124 is located downstream of the control valve 122. The pre-action pipeline 121 is connected to the fire fighting pipeline 400, the fire alarm controller 123 is electrically connected to the control valve 122 and the electric exhaust valve 124, and the fire alarm system 300 is electrically connected to the fire alarm controller 123. There are two groups of fire alarm systems 300, and the detection terminals 301 of the two groups of fire alarm systems 300 are respectively located at different positions in the storage location 2100; the two groups of fire alarm systems 300 are electrically connected to the fire alarm controller 123, and the fire alarm controller 123 is configured to open the control valve 122 and the electric exhaust valve 124 when receiving electrical signals sent by the two groups of fire alarm systems 300 at the same time. The control valve 122 is a diaphragm valve 122a, and the water mist nozzle 200 is a bursting nozzle. Before the bursting nozzle is activated, the internal air pressure of the fire fighting pipeline 400 is equal to the internal pressure in the pre-action pipeline 121.

[0140] In this embodiment, one of the two groups of fire alarm systems 300 is an aspirating smoke detection system 310, which includes an aspirating smoke detection host, a sampling tube 311 and a sampling branch tube 312. The sampling tube 311 is connected to the aspirating smoke detection host, and the sampling tube 311 extends into the storage position 2100; at least one sampling branch tube 312 is provided on the sampling tube 311, and a sampling hole 312a is opened on the sampling branch tube 312; the sampling branch tube 312 is located in the storage position 2100.

[0141] When the other of the two fire alarm systems 300 is an addressable point smoke fire alarm system 320 , the addressable point smoke fire alarm system 320 includes an addressable point smoke detector 321 , which is disposed at the top of the storage location 2100 .

[0142] Optionally, a needle bed assembly 2110 is further provided inside the storage location 2100, and the needle bed assembly 2110 refers to an assembly for performing formation and / or capacity separation operations on the battery cells 3000. The tray 4000 is located within the operating range of the needle bed assembly 2110; the water mist nozzle 200 is located outside the operating range of the needle bed assembly 2110.

[0143] The needle bed assembly 2110 is provided with a probe 2120, which refers to an actuator on the needle bed assembly 2110 for electrically contacting the battery cell 3000. Under the action of the needle bed assembly 2110, the probe 2120 can move up and down along the gravity direction G to achieve electrical contact with the battery cell 3000, or to separate from the battery cell 3000. In the gravity direction G, the bottom height of the water mist nozzle 200 is greater than or equal to the bottom height of the probe 2120; and the distance between the bottom of the water mist nozzle 200 and the tray 4000 is greater than or equal to 100 mm.

[0144] Among them, the water mist nozzle 200 can use a low-pressure water mist nozzle. The response time index RTI of the water mist nozzle 200 is: RTI <50; the coefficient K of the water mist nozzle 200 is: K14. Exemplarily, the working pressure of the water mist nozzle 200 is between 0.35 Mpa and 0.8 Mpa; the minimum working flow rate of the water mist nozzle 200 is greater than or equal to 34.3 L / min. The water mist nozzle 200 is configured to be able to generate water mist with a cone angle between 145° and 155°. The water mist nozzle 200 is configured to be able to generate water mist with a droplet volume diameter of less than 800 μm. The temperature level of the water mist nozzle 200 is d, and the working environment temperature inside the storage location 2100 is f, f+30℃≤d≤f+60℃.

[0145] In this way, the water mist nozzle 200 has a better spraying fire extinguishing effect in the storage location 2100, and the low-pressure fire extinguishing system 100 supplies the fire extinguishing medium at low pressure, the spraying rate of the fire extinguishing medium is lower, and the amount of fire extinguishing medium is effectively reduced; at the same time, the fire-fighting pipeline 400 can use a conventional pipeline, which is lower in cost than a high-pressure resistant pipeline.

[0146] Please refer to Figure 1 , Figures 6 to 8 The embodiment of the present application also provides a chemical composition and content storage device 2000, including multiple storage locations 2100 and the fire protection system 1000 as described above, and the water mist nozzle 200 of the fire protection system 1000 and the detection end 301 of the fire alarm system 300 are arranged in the storage location 2100.

[0147] The chemical separation and containment device 2000 provided in the embodiment of the present application includes the fire protection system 1000 mentioned above. Thus, in the event of a fire, the chemical separation and containment device 2000 can utilize the fire protection system 1000 to deal with the fire, thereby reducing the losses caused by the fire.

[0148] 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 fire fighting system, characterized in that: The fire fighting system is applied to the storage location of chemical component storage equipment, and the fire fighting system includes A low-pressure fire extinguishing system, used for providing a fire extinguishing medium; the low-pressure fire extinguishing system is a pre-action system, the pre-action system comprises a pre-action pipeline, a fire alarm controller, and a control valve and an electric exhaust valve arranged on the pre-action pipeline, the electric exhaust valve being located downstream of the control valve; A water mist nozzle is arranged in the storage position, and the water mist nozzle is connected to the part of the fire-fighting pipeline located downstream of the control valve through the fire-fighting pipeline; as well as At least two groups of fire alarm systems, the detection ends of the at least two groups of fire alarm systems are respectively arranged at different positions in the storage location, the at least two groups of fire alarm systems are electrically connected to the fire alarm controller, and the fire alarm controller is electrically connected to the control valve and the electric exhaust valve; wherein the fire alarm controller is configured to open the control valve and the electric exhaust valve when it receives electrical signals sent by at least two groups of the fire alarm systems at the same time, so that the water mist nozzle sprays the fire extinguishing medium.

2. The fire fighting system according to claim 1, characterized in that: The pre-action system also includes a low-pressure alarm device, a detection end of which is arranged inside the pre-action pipeline and downstream of the control valve; the low-pressure alarm device is electrically connected to the fire alarm controller, and the fire alarm controller is configured to open the control valve and the electric exhaust valve when receiving the electrical signal sent by the low-pressure alarm device.

3. The fire fighting system according to claim 1, characterized in that: The pre-action system also includes a terminal water test valve, which is arranged on the fire-fighting pipeline; after opening the terminal water test valve, the electric exhaust valve and the control valve, the pre-action pipeline supplies fire-extinguishing medium into the fire-fighting pipeline, and the time for the fire-extinguishing medium to reach the terminal water test valve is less than 60 seconds.

4. The fire fighting system according to claim 1, characterized in that: The fire alarm controller is provided with a manual alarm button, which is electrically connected to the fire alarm controller; the manual alarm button is configured to open the control valve and the electric exhaust valve.

5. The fire fighting system according to claim 4, characterized in that: The fire protection system also includes an audible and visual alarm, which is electrically connected to the fire alarm controller.

6. The fire fighting system according to claim 1, characterized in that: The control valve is a diaphragm valve, and the water mist nozzle is a bursting nozzle; before the bursting nozzle is activated, the internal air pressure of the fire-fighting pipeline is equal to the internal pressure in the pre-action pipeline.

7. The fire fighting system according to claim 6, characterized in that: At least one of the at least two groups of fire alarm systems is an aspirating smoke detection system; and / or at least one of the at least two groups of fire alarm systems is an addressable point smoke fire alarm system.

8. The fire fighting system according to claim 7, characterized in that: When at least one of the at least two groups of the fire alarm systems is an aspirating smoke detection system, the aspirating smoke detection system includes an aspirating smoke detection host, a sampling tube and a sampling branch tube, the sampling tube is connected to the aspirating smoke detection host, and the sampling tube extends into the storage location; at least one sampling branch tube is arranged on the sampling tube, and a sampling hole is opened on the sampling branch tube; the sampling branch tube is located in the storage location.

9. The fire fighting system according to claim 7, characterized in that: When at least one of the at least two groups of the fire alarm systems is an addressable point smoke fire alarm system, the addressable point smoke fire alarm system includes an addressable point smoke detector, and the addressable point smoke detector is arranged at the top of the storage location.

10. The fire fighting system according to any one of claims 1 to 9, characterized in that: A tray for accommodating battery cells is arranged in the storage location; the detection end of the fire alarm system is arranged above the tray; and / or the detection end of the fire alarm system is arranged outside the range of the tray.

11. The fire fighting system according to any one of claims 1 to 9, characterized in that: 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 water mist nozzle is provided on the storage location internal branch pipe. The plurality of the storage location internal branch pipes respectively extend into the corresponding storage locations.

12. The fire fighting system according to claim 11, characterized in that: The chemical fractionation and capacity distribution equipment comprises at least one column of storage locations formed by stacking at least two storage locations along the direction of gravity; when the storage location column groups are arranged in sequence to form multiple columns, 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 direction of gravity.

13. The fire fighting system according to claim 11, 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.

14. The fire fighting system according to any one of claims 1 to 9, characterized in that: The fire protection system further comprises a fire control center, the fire alarm system is electrically connected to the fire control center, and the fire alarm system is configured to send multi-level alarm signals.

15. The fire fighting system according to claim 14, characterized in that: The fire control center is electrically connected to the control valve and the electric exhaust valve.

16. The fire fighting system according to claim 15, characterized in that: The fire alarm controller is electrically connected to the fire control center, and the fire alarm controller is configured to be able to upload monitoring information to the fire control center.

17. A chemical fractionation device, characterized in that: It comprises a plurality of storage locations and a fire protection system as claimed in any one of claims 1 to 16, wherein the water mist nozzle of the fire protection system and the detection end of the fire alarm system are arranged in the storage locations.

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