Fire fighting structure, energy storage equipment and energy storage system

Abstract

The invention relates to the field of energy storage and fire fighting, and provides a fire fighting structure, energy storage equipment and an energy storage system.The fire fighting structure is used in the energy storage equipment, and the energy storage equipment comprises a support and an energy storage module arranged on the support; the fire fighting structure is detachably connected to the support, the fire fighting structure comprises a gas inlet pipeline and a gas outlet pipeline, the gas inlet pipeline communicates with the energy storage module and is used for inputting fire extinguishing gas into the energy storage module, and the gas outlet pipeline communicates with the energy storage module and is used for outputting gas in the energy storage module. The fire-fighting structure provided by the embodiment of the invention improves the reliability of the energy storage equipment.

Description

Technical Field

[0001] The present application relates to the field of energy storage devices, and in particular to a fire protection structure, energy storage equipment and energy storage system. Background Art

[0002] Energy storage devices such as energy storage valve towers are equipped with a large number of battery cells. An energy storage valve tower will be continuously charged and discharged during its service. In order to increase the capacity of charging and discharging energy per unit area, the energy storage valve tower usually connects multiple electrical cabinets in series and parallel, which increases the volume, weight and power of the energy storage valve tower. Once the thermal management of a battery cell in the electrical cabinet is out of control, it may cause a fire in the entire energy storage valve tower and cause functional failure. Therefore, the reliability of energy storage equipment needs to be improved. Summary of the invention

[0003] In view of this, the present application provides a fire protection structure, energy storage equipment and energy storage system, which can improve the reliability of the energy storage equipment.

[0004] An embodiment of the first aspect of the present application proposes a fire-fighting structure, which is used in an energy storage device, wherein the energy storage device includes a bracket and an energy storage module arranged on the bracket; the fire-fighting structure is detachably installed on the bracket, and the fire-fighting structure includes an air inlet pipeline and an air outlet pipeline, the air inlet pipeline is used to communicate with the energy storage module to input fire-extinguishing gas into the energy storage module, and the air outlet pipeline is used to communicate with the energy storage module to output the gas in the energy storage module.

[0005] The fire-fighting structure provided in the embodiment of the present application includes an air inlet pipeline and an air outlet pipeline. The air inlet pipeline is connected to the energy storage module and is used to input fire-extinguishing gas into the energy storage module. The air outlet pipeline is connected to the energy storage module and is used to output the gas in the energy storage module. The fire-fighting structure provided in the embodiment of the present application distributes fire-extinguishing gas in the energy storage module, and the energy storage module can be in an oxygen-free or low-oxygen environment. The fire-fighting structure can not only extinguish the fire of the energy storage module that has caught fire, but also reduce the possibility of combustion of the energy storage module from the source. Therefore, the fire-fighting structure improves the reliability of the energy storage equipment; in addition, the fire-fighting structure is convenient for transportation, assembly and disassembly, saving transportation costs.

[0006] In some embodiments, the air intake pipeline includes an air intake main path and an air intake branch path connected to the air intake main path, and an air intake pipe body is provided on the air intake branch path;

[0007] The air outlet pipeline comprises an air outlet main path and an air outlet branch path connected to the air outlet main path, and an air outlet pipe body is arranged on the air outlet branch path;

[0008] The air inlet pipe body and the air outlet pipe body are respectively used to communicate with the energy storage module.

[0009] By adopting the above technical solution, the air inlet pipeline and the air outlet pipeline can be set according to the layout of the energy storage module, and the energy storage module is connected through the air inlet pipe body and the air outlet pipe body, and the fire protection structure can conveniently run the fire extinguishing gas.

[0010] In some embodiments, in the energy storage module, the installation height of the air inlet pipe body is lower than the installation height of the air outlet pipe body, and the air inlet pipe body and the air outlet pipe body are arranged along the diagonal edges of the energy storage module.

[0011] By adopting the above technical solution, the fire extinguishing gas can be evenly distributed inside the energy storage module and fully fill the inside of the energy storage module, thereby achieving a better fire extinguishing or flame retardant effect.

[0012] In some embodiments, a plurality of the intake pipe bodies are provided on the intake branch and the plurality of the intake pipe bodies are connected in series and / or in parallel;

[0013] A plurality of the air outlet pipe bodies are arranged on the air outlet branch and the plurality of the air outlet pipe bodies are connected in series and / or in parallel.

[0014] By adopting the above technical solution, the fire protection structure can flexibly set the air inlet pipe body and the air outlet pipe body according to needs, thereby reducing the interference of fire protection between different energy storage modules.

[0015] In some embodiments, the plurality of energy storage modules are arranged in multiple layers along the height direction of the support; the air inlet branch is used to connect at least one layer of the energy storage modules, and the air outlet branch is used to connect at least one layer of the energy storage modules.

[0016] By adopting the above technical solution, the fire protection structure can extinguish or flame retard energy storage modules on different layers without interfering with each other.

[0017] In some embodiments, the number of the intake branches is multiple and the multiple intake branches are arranged in parallel, and / or,

[0018] The number of the air outlet branches is multiple and the multiple air outlet branches are arranged in parallel.

[0019] By adopting the above technical solution, the fire-fighting structure can perform fire-fighting operations on one or more layers of energy storage modules independently without interfering with each other; and, multiple parallel air intake branches are connected to the air intake main road, and multiple parallel air outlet branches are connected to the air outlet main road, without the need to set up multiple main pipelines, thereby avoiding the need to separately set up multiple fire-fighting pipelines or add other additional fire-fighting facilities.

[0020] In some embodiments, the main air inlet and the main air outlet can extend along the height direction of the bracket, the main air inlet has a fire-fighting pipeline inlet, and the main air outlet has a fire-fighting pipeline outlet;

[0021] The plurality of air inlet branches are arranged at intervals along the height direction of the air inlet main path, the plurality of air outlet branches are arranged at intervals along the height direction of the air outlet main path, and the air inlet branches and the air outlet branches are respectively arranged along the circumference of the bracket.

[0022] By adopting the above technical solution, the air inlet branch and the air outlet branch are arranged along the circumference of the bracket, which is convenient for connecting each energy storage module without occupying the internal position of the energy storage module; the fire-fighting structure only requires one fire-fighting pipeline inlet and one fire-fighting pipeline outlet, and there is no need to use cylinders to store fire-extinguishing agents. The fire-fighting structure ensures subsequent maintenance and inspection without shutting down the energy storage equipment, and the fire-fighting gas supply will not fail.

[0023] In some embodiments, the number of the air inlet branches and the air outlet branches are the same and they are arranged alternately.

[0024] By adopting the above technical solution, an air intake branch and its adjacent air outlet main road can be connected to a layer of energy storage modules, and the fire protection structure has a simple structure and is convenient for arranging pipelines.

[0025] In some embodiments, the air intake branch includes at least two parallel and spaced-apart first horizontal straight pipes and a first connecting pipe connected between the two first horizontal straight pipes, wherein one of the first horizontal straight pipes is connected to the air intake main pipe; and / or; the air outlet branch includes at least two parallel and spaced-apart second horizontal straight pipes and a second connecting pipe connected between the two second horizontal straight pipes, wherein one of the second horizontal straight pipes is connected to the air outlet main pipe.

[0026] By adopting the above technical solution, the air inlet branch and the air outlet branch can be connected to a layer of energy storage modules to match the fire protection requirements of multiple energy storage modules, and the structure is relatively simple.

[0027] In some embodiments, both ends of the first connecting pipe are connected to the first horizontal straight pipeline through first quick-release connectors; and / or

[0028] Both ends of the first connecting pipe are connected to the second horizontal straight pipeline through the first quick-release connector.

[0029] By adopting the above technical solution, the fire protection structure can be quickly assembled and disassembled; the air inlet branch and the air outlet branch can be arranged around the outer side of the bracket, surrounding a layer of energy storage modules.

[0030] In some embodiments, the air intake branch is detachably connected to the air intake main path; and / or,

[0031] The air outlet branch is detachably connected to the air outlet main path.

[0032] By adopting the above technical solution, the fire-fighting structure is convenient for transportation, assembly and disassembly, thus saving transportation costs.

[0033] In some embodiments, the air intake branches are connected to each other via a transfer tube; and / or,

[0034] The outlet branch is connected to the outlet main path via a transfer tube;

[0035] Wherein, at least one end of the transfer tube is provided with a flexible joint.

[0036] By adopting the above technical solution, a detachable connection between the air inlet branch and the air inlet main path and / or a detachable connection between the air outlet branch and the air outlet main path is achieved.

[0037] In some embodiments, the air intake pipe body is connected to the air intake branch through a second quick-release structure; and / or,

[0038] The air outlet pipe body is connected to the air outlet branch through the second quick-release structure.

[0039] The fire-fighting structure of the embodiment of the present application includes a quick-release structure, which can realize quick assembly and disassembly of the fire-fighting structure and facilitate the transportation of energy storage equipment.

[0040] In some embodiments, the fire protection structure further includes a filter disposed on the gas outlet pipeline, and the filter is used to filter gas particles.

[0041] By adopting the above technical solution, the filter can filter and collect gas particles in the flue gas, preventing the gas particles from entering the main gas outlet path.

[0042] In some embodiments, the filter is detachably disposed between the air outlet branch and the air outlet main path.

[0043] By adopting the above technical solution, the filter adopts a detachable connection method, which is convenient for replacement.

[0044] In some embodiments, the fire protection structure further includes a control valve disposed on the air intake pipe body, and the control valve is used to control the on-off of the air intake pipe body.

[0045] By adopting the above technical solution, the fire-fighting structure can selectively supply fire-extinguishing gas to the energy storage module, so as to accurately extinguish the fire in each energy storage module and reduce the amount of fire-extinguishing gas used.

[0046] In some embodiments, the fire protection structure further includes a detection device disposed at the energy storage module, the detection device being used to detect environmental indicators within the energy storage module, and the control valve controls the on-off of the air intake pipe body according to the detection result of the detection device.

[0047] By adopting the above technical solution, the control valve can control the opening of the pipeline of the air intake pipe body according to the detection result, and supply fire extinguishing gas from the main air intake line to the corresponding energy storage module to achieve precise fire extinguishing.

[0048] In some embodiments, the fire protection structure further includes a fire protection pressure relief valve, which is connected to the air outlet pipeline.

[0049] By adopting the above technical solution, the fire pressure relief valve can release the gas in the gas outlet pipeline to avoid excessive gas pressure in the gas outlet pipeline.

[0050] In some embodiments, the fire extinguishing gas is an inert gas fire extinguishing agent.

[0051] Inert gas fire extinguishing agents can create an oxygen-free environment inside the sealed energy storage module, thus preventing flames from forming at the source.

[0052] In some embodiments, the air inlet pipeline is used to connect to a fire extinguishing gas preparation device.

[0053] Compared with fire extinguishing agent storage equipment, fire extinguishing gas preparation equipment can continuously supply fire extinguishing gas, ensuring that the fire extinguishing gas supply will not fail.

[0054] The embodiment of the second aspect of the present application provides an energy storage device, including:

[0055] Bracket;

[0056] An energy storage module is arranged on the bracket;

[0057] The fire protection structure as described in any one of the first aspects is detachably arranged on the bracket and connected to the energy storage module.

[0058] The energy storage device provided in the embodiment of the present application includes a fire-fighting structure, so that fire-extinguishing gas is distributed in the energy storage module, and the energy storage module can be in an oxygen-free or low-oxygen environment. The fire-fighting structure can not only extinguish the burning energy storage module, but also reduce the possibility of combustion of the energy storage module from the source. Therefore, the energy storage device has higher reliability.

[0059] In some embodiments, the energy storage device is a valve tower, the energy storage module includes an electrical cabinet and a power module, the air inlet pipeline and the air outlet pipeline are connected to the electrical cabinet, and the air inlet pipeline and the air outlet pipeline are connected to the power module.

[0060] The fire protection structure provided in the embodiment of the present application can meet the fire protection requirements of the valve tower and improve the reliability of the valve tower.

[0061] An embodiment of the third aspect of the present application proposes an energy storage system, comprising at least one energy storage device air intake collecting pipeline as described in the second aspect, which is connected to the air intake pipeline in the energy storage device; and an air outlet collecting pipeline, which is connected to the air outlet pipeline in the energy storage device.

[0062] The above energy storage system can perform fire control on one or more energy storage devices, thereby improving the reliability of the energy storage devices.

[0063] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] 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 conventional 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 labor.

[0065] Figure 1 is a front view of the energy storage device provided in an embodiment of the present application;

[0066] Figure 2 yes Figure 1 a left side view of the energy storage device shown;

[0067] Figure 3 yes Figure 1 A top view of the energy storage device shown;

[0068] Figure 4 yes Figure 1 A three-dimensional schematic diagram of a fire protection structure in the energy storage device shown;

[0069] Figure 5 yes Figure 4 A partial enlarged view of the fire fighting structure shown;

[0070] Figure 6 yes Figure 5 A partial enlarged view of the air intake branch in the fire protection structure shown;

[0071] Figure 7 It is a schematic diagram of the structure of the energy storage system provided in the embodiment of the present application.

[0072] The meanings of the marks in the figure are:

[0073] 100. Energy storage equipment;

[0074] 10. Bracket; 11. Sub-bracket; 12. Insulator; 13. Insulation fixing base;

[0075] 20. Energy storage module; 21. Electric cabinet; 22. Power module; 23. Combiner cabinet;

[0076] 30. Fire protection structure;

[0077] 31. air intake pipeline; 311. air intake pipe body; 312. air intake main line; 3121. fire-fighting pipeline inlet; 313. air intake branch line; 3131. first horizontal straight pipeline; 3132. first connecting pipe;

[0078] 32, air outlet pipeline; 321, air outlet pipe body; 322, main air outlet; 3221, fire protection pipeline outlet; 323, air outlet branch; 3231, second horizontal straight pipeline; 3232, second connecting pipe;

[0079] 33. First quick-release structure; 34. Second quick-release structure; 35. Third quick-release structure;

[0080] 36. Filter;

[0081] 37. Fire relief valve;

[0082] 38. Transfer pipe; 381. Union;

[0083] 1000. Energy storage system;

[0084] 200. Fire extinguishing gas preparation device; 300. Air intake collecting pipeline; 400. Air intake collecting pipeline. DETAILED DESCRIPTION

[0085] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0086] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0087] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0088] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0089] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0090] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0091] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0092] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0093] At present, energy storage equipment such as energy storage valve towers are equipped with a large number of battery cells. An energy storage valve tower will be continuously charged and discharged during its service. In order to increase the capacity of charging and discharging energy per unit area, the energy storage valve tower usually connects multiple battery cells in series and parallel, which increases the volume, weight and power of the energy storage valve tower. Once the thermal management of a battery cell is out of control, it may cause a fire in the entire energy storage valve tower and cause functional failure.

[0094] Research has found that general energy storage cabinets use fire extinguishing agents and re-ignition inhibitors to extinguish open flames, and can only provide firefighting after a fire occurs, and their reliability needs to be improved.

[0095] In view of this, the embodiment of the present application provides a fire-fighting structure, an energy storage device and an energy storage system, wherein the fire-fighting structure is used in the energy storage device, and the energy storage device includes a bracket and an energy storage module arranged on the bracket; the fire-fighting structure is used to be installed on the bracket, and the fire-fighting structure includes an air inlet pipeline and an air outlet pipeline, the air inlet pipeline is used to communicate with the energy storage module to input fire-extinguishing gas into the energy storage module, and the air outlet pipeline is used to communicate with the energy storage module to output the gas in the energy storage module. The fire-fighting structure can input fire-extinguishing gas into the energy storage module through the air inlet pipeline, and can output the gas in the energy storage module through the air outlet pipeline, so that the energy storage module is in an oxygen-free or low-oxygen environment, which can not only extinguish the fire after it occurs, but also solve the combustion-supporting oxygen in the three elements of combustion from the source, and reduce the possibility of combustion of the battery cells in the energy storage module. Therefore, the above-mentioned fire-fighting structure improves the reliability of the energy storage device.

[0096] The embodiment of the first aspect of the present application provides a fire protection structure for use in an energy storage device. The following embodiments are described using an energy storage device that is an energy storage valve tower as an example. The energy storage device may also be other devices that can store energy.

[0097] Please refer to Figure 1 The energy storage device 100 includes a bracket 10 , an energy storage module 20 disposed on the bracket 10 , and a fire protection structure 30 .

[0098] The fire-fighting structure 30 is detachably mounted on the bracket 10 , and includes an air inlet pipeline 31 and an air outlet pipeline 32 . The air inlet pipeline 31 is used to communicate with the energy storage module 20 to input fire-extinguishing gas into the energy storage module 20 , and the air outlet pipeline 32 is used to communicate with the energy storage module 20 to output the gas in the energy storage module 20 .

[0099] Please also refer to Figures 1 to 4 The support 10 is used to install the energy storage module 20 and the fire protection structure 30. The support 10 can be a frame structure and the support 10 can be set as a single-layer or multi-layer structure according to the number of energy storage modules 20. When the energy storage device 100 is an energy storage valve tower, the support 10 is a valve tower frame.

[0100] The energy storage module 20 is used for energy storage, and the energy storage module 20 includes at least a plurality of batteries; the number of the energy storage module 20 may be one or more, and when there are a plurality of energy storage modules 20, the plurality of energy storage modules 20 may be arranged in one or more layers on the bracket 10. For example, the energy storage module 20 may be an electric cabinet 21, and the electric cabinet 21 includes a cabinet body and a plurality of batteries disposed in the cabinet body; for another example, the energy storage module 20 may be a power module 22; the energy storage module 20 may also be other modules.

[0101] The fire fighting structure 30 is connected to the bracket 10, and is used to extinguish the energy storage module 20 and reduce the risk of fire and combustion of the energy storage module 20. The fire fighting structure 30 includes an air inlet pipeline 31 and an air outlet pipeline 32, and the air inlet pipeline 31 and the air outlet pipeline 32 are respectively connected to the energy storage module 20. When there are multiple energy storage modules 20, the air inlet pipeline 31 is connected to multiple energy storage modules 20 at the same time, and the air outlet pipeline 32 is also connected to multiple energy storage modules 20 at the same time.

[0102] The air inlet line 31 is used to input fire extinguishing gas into the energy storage module 20. The fire extinguishing gas can be an inert gas fire extinguishing agent, such as IG-100, IG-541, etc. It can be understood that the fire extinguishing gas can also be other gases that can extinguish fires. The air inlet line 31 can continuously input fire extinguishing gas to at least one energy storage module 20; the air inlet line 31 can also input fire extinguishing gas to the energy storage module 20 in need according to control to achieve precise fire extinguishing.

[0103] The gas outlet pipeline 32 is used to output the gas in the energy storage module 20. The gas in the energy storage module 20 includes fire extinguishing gas and may also include other gases, such as smoke generated by combustion.

[0104] The fire fighting structure 30 is detachably connected to the bracket 10, and the fire fighting structure 30 can be transported separately and then assembled on the bracket 10. The fire fighting structure 30 and the bracket 10 can be connected in a variety of connection methods, for example, the bracket 10 is provided with a clamping member, and the air inlet pipeline 31 and the air outlet pipeline 32 are fixed to the bracket 10 through the clamping member; for another example, the bracket 10 is provided with a through hole, and the air inlet pipeline 31 and the air outlet pipeline 32 are respectively penetrated in the through hole.

[0105] When the energy storage module 20 is a sealed structure, the fire-fighting structure 30 can fill the energy storage module 20 with fire-fighting gas by inputting fire-fighting gas into the energy storage module 20 and outputting the gas in the energy storage module 20, so that the energy storage module 20 is an oxygen-free environment; it can be understood that the energy storage module 20 can also be a non-sealed structure, and the fire-fighting structure 30 can create a low-oxygen environment in the energy storage module 20. "Low oxygen" means that the oxygen content in the energy storage module 20 is lower than the oxygen content in the external ambient air. Therefore, the fire-fighting structure 30 can reduce the oxygen content in the energy storage module 20, thereby reducing the possibility of fire and combustion in the energy storage module 20 from the source. In addition, if a fire occurs in the energy storage module 20, the fire-fighting structure 30 inputs fire-fighting gas into the energy storage module 20, which can quickly extinguish the fire and reduce the possibility of re-ignition.

[0106] The fire-fighting structure 30 provided in the embodiment of the present application includes an air inlet pipeline 31 and an air outlet pipeline 32. The air inlet pipeline 31 is connected to the energy storage module 20 and is used to input fire-extinguishing gas into the energy storage module 20. The air outlet pipeline 32 is connected to the energy storage module 20 and is used to output the gas in the energy storage module 20. The fire-fighting structure 30 provided in the embodiment of the present application can distribute fire-extinguishing gas in the energy storage module 20, and the energy storage module 20 can be in an oxygen-free or low-oxygen environment. The fire-fighting structure 30 can not only extinguish the energy storage module 20 that has caught fire, but also reduce the possibility of combustion of the energy storage module 20 from the source. Therefore, the fire-fighting structure improves the reliability of the energy storage device 100. In addition, the fire-fighting structure 30 is convenient for transportation, assembly and disassembly, saving transportation costs.

[0107] Please refer to Figure 4 and Figure 5 The air inlet pipeline 31 includes an air inlet main path 312 and an air inlet branch 313 connected to the air inlet main path 312, and an air inlet pipe body 311 is provided on the air inlet branch 313; the air outlet pipeline 32 includes an air outlet main path 322 and an air outlet branch 323 connected to the air outlet main path 322, and an air outlet pipe body 321 is provided on the air outlet branch 323; the air inlet pipe body 311 and the air outlet pipe body 321 are respectively used to communicate with the energy storage module 20.

[0108] The main air intake path 312 is used to connect to the first external device to transmit the fire extinguishing gas provided by the first external device to the air intake branch 313. Optionally, the main air intake path 312 is used to connect to the fire extinguishing gas preparation device, or the main air intake path 312 can also be used to connect to the fire extinguishing gas storage device.

[0109] The number of the air inlet branch 313 may be one or more, and each air inlet branch 313 may be connected to one or more air inlet pipe bodies 311, and the air inlet pipe body 311 is used to communicate with the energy storage module 20. For example, the air inlet pipe body 311 may be passed through the energy storage module 20, or connected to the air inlet hole on the energy storage module 20. The air inlet branch 313 can transmit the fire extinguishing gas in the air inlet main path 312 to the inside of the energy storage module 20 through the air inlet pipe body 311. It can be understood that each energy storage module 20 can be connected to one or more air inlet pipe bodies 311, and one or more air outlet pipe bodies 321.

[0110] The main gas outlet path 322 is used to connect to a second external device to transmit the gas in the energy storage module 20 to the second external device. The second external device is, for example, a gas collection pipeline.

[0111] The number of the outlet branches 323 may be one or more, and each outlet branch 323 may be connected to one or more outlet pipes 321, and the outlet pipes 321 are used to communicate with the energy storage module 20. For example, the outlet pipes 321 may be passed through the energy storage module 20, or connected to the outlet holes on the energy storage module 20. The outlet branches 323 can transmit the gas inside the energy storage module 20 to the outlet main path 322 through the outlet pipe 32.

[0112] When in use, the main air inlet path 312 transmits the fire-extinguishing gas to the air inlet branch 313, and the air inlet branch 313 transmits the fire-extinguishing gas to the corresponding energy storage module through each air inlet pipe body 311; the energy storage module is filled with fire-extinguishing gas, presenting an oxygen-free or low-oxygen environment; the gas in the energy storage module enters the air outlet branch 323 through the air outlet pipe body 321, and then the air outlet branch 323 transmits the gas to the main air outlet path 322.

[0113] By adopting the above technical solution, the air inlet pipeline 31 and the air outlet pipeline 32 can be set according to the layout of the energy storage module 20, and the energy storage module 20 is connected through the air inlet pipe body 311 and the air outlet pipe body 321, and the fire fighting structure 30 can conveniently run the fire extinguishing gas.

[0114] In some embodiments, the air inlet pipe body 311 and the air outlet pipe body 321 are both arranged at the upper part of the energy storage module 20; or, the air inlet pipe body 311 and the air outlet pipe body 321 are both arranged at the lower part of the energy storage module 20; or, one of the air inlet pipe body 311 and the air outlet pipe body 321 is arranged at the upper part of the energy storage module 20, and the other is arranged at the lower part of the energy storage module 20.

[0115] For example, Figure 4 and Figure 5 As shown, the air inlet pipe body 311 is arranged at the lower part of the energy storage module 20, and the air outlet pipe body 321 is arranged at the upper part of the energy storage module 20, that is, the gas enters from the bottom and exits from the top.

[0116] For example, in another embodiment, the air inlet pipe 311 and the air outlet pipe 321 are both disposed at the upper part of the energy storage module 20, that is, the gas enters and exits from the upper part. If the density of the fire extinguishing gas is greater than that of the air, the heavier fire extinguishing gas will sink, filling the energy storage module 20 and squeezing out the air.

[0117] In another embodiment, the air inlet pipe body 311 and the air outlet pipe body 321 are both arranged at the lower part of the energy storage module 20, that is, the gas enters from the bottom and exits from the bottom. By adopting the above technical solution, the installation positions of the air inlet pipe body 311 and the air outlet pipe body 321 on the energy storage module 20 can be flexibly set according to needs, and both can make the fire extinguishing gas distributed in the energy storage module 20 and discharge the gas in the energy storage module 20, thereby reducing the oxygen content in the energy storage module 20.

[0118] like Figure 4 and Figure 5 As shown, in some embodiments, in the energy storage module 20 , the installation height of the air inlet pipe body 311 is lower than the installation height of the air outlet pipe body 321 .

[0119] The installation height of the air inlet pipe body 311 is lower than the installation height of the air outlet pipe body 321, so the fire extinguishing gas can enter the energy storage module 20 from the lower part of the energy storage module 20, and discharge the air in the energy storage module 20 from the air outlet pipe body 321, thereby realizing the gas entering from the bottom and exiting from the top.

[0120] Optionally, the density of the fire extinguishing gas may be greater than the density of air, for example, the fire extinguishing gas is carbon dioxide, which is conducive to filling the energy storage module 20 with the fire extinguishing gas and exhausting the air in the energy storage module 20. It should be noted that the density of the fire extinguishing gas may also be less than or equal to the density of air.

[0121] In order to make the installation height of the air inlet pipe body 311 lower than the installation height of the air outlet pipe body 321 , the installation height of the air inlet branch 313 corresponding to the energy storage module 20 may be lower than the installation height of the air outlet branch 323 .

[0122] By adopting the above technical solution, the installation height of the air inlet pipe body 311 is set to be lower than the installation height of the air outlet pipe body 321, so that the fire extinguishing gas can enter from the bottom and exit from the top, which is conducive to the fire extinguishing gas fully filling the interior of the energy storage module 20.

[0123] Please refer to Figure 1 , Figure 4 and Figure 5 As shown, in the energy storage module 20 , the air inlet pipe body 311 and the air outlet pipe body 321 can be arranged along the diagonal edges of the energy storage module 20 .

[0124] Specifically, the installation height of the air inlet pipe body 311 is lower than the installation height of the air outlet pipe body 321 , and the air inlet pipe body 311 and the air outlet pipe body 321 are arranged along the diagonal edges of the energy storage module 20 .

[0125] The air inlet pipe body 311 and the air outlet pipe body 321 are arranged at intervals along the height direction of the energy storage module 20, and the air inlet pipe body 311 and the air outlet pipe body 321 are arranged at intervals along the length or width direction of the energy storage module 20. The outer shell of the energy storage module 20 can be a rectangular parallelepiped, and the air inlet pipe body 311 and the air outlet pipe body 321 can be arranged along the diagonal line of a wall surface in the outer shell, or along a diagonal line of the rectangular parallelepiped outer shell.

[0126] By adopting the above technical solution, the fire extinguishing gas can be evenly distributed inside the energy storage module 20 and fully filled inside the energy storage module 20, so the fire extinguishing or flame retardant effect is better.

[0127] In other embodiments, the installation height and installation position of the air inlet pipe body 311 and the air outlet pipe body 321 may also be other methods. For example, the air inlet pipe body 311 and the air outlet pipe body 321 are both arranged at the bottom of the energy storage module 20, and the energy storage module 20 can also be charged and discharged of gas.

[0128] In some embodiments, a plurality of intake pipes 311 are disposed on the intake branch 313 and the plurality of intake pipes 311 are connected in series and / or in parallel.

[0129] by Figure 5 For example, multiple intake pipe bodies 311 on the intake branch 313 are connected in parallel without affecting each other. If one intake pipe body 311 is closed, the other intake pipe bodies 311 can still be in a conducting state. In other embodiments, multiple intake pipe bodies 311 on the intake branch 313 can also be connected in series, or first in parallel and then in series, or first in series and then in parallel.

[0130] In some embodiments, a plurality of air outlet pipes 321 are disposed on the air outlet branch 323 and the plurality of air outlet pipes 321 are connected in series and / or in parallel.

[0131] by Figure 5 For example, multiple air outlet pipe bodies 321 on the air outlet branch 323 are connected in parallel without affecting each other. If one air outlet pipe body 321 is closed, the other air outlet pipe bodies 321 can still be in a conducting state. In other embodiments, the multiple air outlet pipe bodies 321 on the air outlet branch 323 can also be connected in series, or first in parallel and then in series, or first in series and then in parallel.

[0132] By adopting the above technical solution, the fire protection structure 30 can flexibly set the air inlet pipe body 311 and the air outlet pipe body 321 as needed, thereby reducing the interference of fire protection between different energy storage modules 20.

[0133] like Figure 1 and Figure 4As shown, multiple energy storage modules 20 are arranged in multiple layers along the height direction of the bracket 10 ; the air inlet branch 313 is connected to at least one layer of energy storage modules 20 , and the air outlet branch 323 is connected to at least one layer of energy storage modules 20 .

[0134] The energy storage device 100 may be a relatively large device such as a valve tower, in which case a plurality of energy storage modules 20 are arranged in multiple layers along the height direction of the support 10. Figure 1 For example, a plurality of energy storage modules 20 are arranged in three layers along the height direction of the bracket 10. It can be understood that the energy storage modules 20 can also be arranged in 2 or 3 layers or more. Specifically, the bracket 10 includes multiple layers of sub-brackets 11, and insulators 12 are provided between adjacent sub-brackets 11. Each layer of sub-brackets 11 is used to support a layer of energy storage modules 20. The insulator 12 is a device that is installed between conductors of different potentials or between conductors and ground potential components, and can withstand voltage and mechanical stress. It can not only support heavy and precise electrical equipment, but also prevent current from flowing between conductors of different potentials. An insulating fixing base 13 is also provided at the bottom of the bracket 10.

[0135] In some embodiments, each air inlet branch 313 is connected to a layer of energy storage modules 20, and each air outlet branch 323 is also connected to a layer of energy storage modules 20. Thus, along the height direction of the support 10, multiple air inlet branches 313 are arranged at intervals, multiple air outlet branches 323 are arranged at intervals, and the air inlet branches 313 and the air outlet branches 323 are arranged alternately. The pipeline structure of the fire protection structure 30 is simple and easy to assemble and disassemble. The fire protection structure 30 can extinguish or flame retard the energy storage modules 20 of different layers without interfering with each other.

[0136] In other embodiments, an air intake branch 313 and / or an air outlet branch 323 may also be connected to more than one layer of energy storage modules 20. For example, the air intake branch 313 is arranged between two layers of energy storage modules 20, and two rows of air intake pipe bodies 311 are arranged on the air intake branch 313. Then, the air intake branch 313 can be connected to two layers of energy storage modules 20 at the same time.

[0137] By adopting the above technical solution, the fire protection structure 30 can meet the fire protection requirements of large energy storage equipment 100 such as valve towers, and the pipeline setting method is flexible and easy to install and disassemble.

[0138] like Figure 4 As shown, in some embodiments, the number of the air inlet branches 313 is multiple and the multiple air inlet branches 313 are arranged in parallel, and / or the number of the air outlet branches 323 is multiple and the multiple air outlet branches 323 are arranged in parallel.

[0139] Multiple air intake branches 313 are arranged in parallel and are respectively connected to the air intake main path 312. Therefore, the air intake main path 312 can transmit fire extinguishing gas to each air intake branch 313 respectively; at the same time, since the air intake branch 313 can be connected to one or more layers of energy storage modules 20, the firefighting operations between the energy storage modules 20 connected to different air intake branches 313 do not affect each other.

[0140] Multiple gas outlet branches 323 are arranged in parallel and are respectively connected to the gas outlet main path 322. Therefore, each gas outlet branch 323 can transmit gas to the gas outlet main path 322 respectively, and the firefighting operations between the energy storage modules 20 connected to different gas outlet branches 323 do not affect each other.

[0141] By adopting the above technical solution, the fire-fighting structure 30 can perform fire-fighting operations on one or more layers of energy storage modules 20 independently without interfering with each other; and, multiple parallel air intake branches 313 are all connected to the air intake main road 312, and multiple parallel air outlet branches 323 are all connected to the air outlet main road 322, without the need to set up multiple main pipelines, thereby avoiding the need to separately set up multiple fire-fighting pipelines or add other additional fire-fighting facilities.

[0142] Please refer to Figures 1 to 5 The main air inlet path 312 and the main air outlet path 322 can extend along the height direction of the bracket 10, the main air inlet path 312 has a fire pipe inlet 3121, and the main air outlet path 322 has a fire pipe outlet 3221; multiple air inlet branches 313 are arranged at intervals along the height direction of the main air inlet path 312, and multiple air outlet branches 323 are arranged at intervals along the height direction of the main air outlet path 322, and the air inlet branches 313 and the air outlet branches 323 are respectively arranged along the circumferential side of the bracket 10.

[0143] The main air inlet 312 and the main air outlet 322 are parallel and extend along the height direction of the bracket 10, and the height direction of the main air inlet 312 and the main air outlet 322 is the height direction of the bracket 10. The fire pipeline inlet 3121 is the fire extinguishing gas inlet of the main air inlet 312, and the fire pipeline outlet 3221 is the gas outlet of the main air outlet 322. The fire pipeline inlet 3121 and the fire pipeline outlet 3221 can both be arranged at the bottom of the bracket 10, which is convenient for connecting the fire pipeline inlet 3121 and the fire pipeline outlet 3221 to external equipment and convenient for maintenance. The fire protection structure 30 provided in the embodiment of the present application only needs one fire pipeline inlet 3121 and one fire pipeline outlet 3221, without adding additional fire protection facilities, and without separately providing a cylinder for storing fire extinguishing agent for each layer of energy storage module 20.

[0144] By adopting the above technical solution, the air inlet branch 313 and the air outlet branch 323 are arranged along the circumferential side of the bracket 10, which is convenient for connecting each energy storage module 20 without occupying the internal position of the energy storage module 20; the fire-fighting structure 30 only requires one fire-fighting pipeline inlet 3121 and one fire-fighting pipeline outlet 3221, and there is no need to use a cylinder to store the fire-fighting agent. The fire-fighting structure 30 ensures subsequent maintenance and inspection without shutting down the energy storage device 100, and the fire-fighting gas supply will not fail.

[0145] In some embodiments, the number of the inlet branches 313 and the outlet branches 323 are the same and are arranged alternately.

[0146] The air inlet branch 313 and the adjacent air outlet branch 323 form a group for extinguishing or flame retardant of a layer of energy storage modules. By adopting the above technical solution, the pipeline structure of the fire protection structure 30 is simple, and the layout of the pipeline is convenient; the fire protection structure 30 can extinguish or flame retardant of energy storage modules 20 on different layers without interfering with each other.

[0147] like Figure 4 and Figure 5 As shown, in some embodiments, the air intake branch 313 includes at least two parallel and spaced-apart first horizontal straight pipes 3131 and a first connecting pipe 3132 connected between the two first horizontal straight pipes 3131, wherein one of the first horizontal straight pipes 3131 is connected to the air intake main path 312; and / or; the air outlet branch 323 includes at least two parallel and spaced-apart second horizontal straight pipes 3231 and a second connecting pipe 3232 connected between the two second horizontal straight pipes 3231, wherein one of the second horizontal straight pipes 3231 is connected to the air outlet main path 322.

[0148] Specifically, one air intake branch 313 can be connected to a layer of energy storage modules 20, and one layer of energy storage modules 20 can be arranged in multiple rows. In order to facilitate the air intake branch 313 to connect multiple rows of energy storage modules 20, the present embodiment sets the air intake branch 313 to include at least two first horizontal straight pipelines 3131 and at least one first connecting pipe 3132. Each first horizontal straight pipeline 3131 is used to connect a row of energy storage modules 20, and the first connecting pipe 3132 is used to connect two first horizontal straight pipelines 3131. Among them, one first horizontal straight pipeline 3131 is connected to the main air intake path 312, and the ends of the remaining first horizontal straight pipelines 3131 can be closed, so as to realize the parallel setting of multiple air intake branches 313.

[0149] Similarly, one outlet branch 323 can be connected to one layer of energy storage modules 20. In this embodiment, the outlet branch 323 is configured to include at least two second horizontal straight pipelines 3231 and at least one first connecting pipe 3132. Each second horizontal straight pipeline 3231 is used to connect a row of energy storage modules 20, and the first connecting pipe 3132 is used to connect two second horizontal straight pipelines 3231. One of the second horizontal straight pipelines 3231 is connected to the outlet main pipeline 322, and the ends of the remaining second horizontal straight pipelines 3231 can be closed, so that multiple outlet branches 323 can be arranged in parallel.

[0150] Optionally, a bend pipe is connected between the first horizontal straight pipe 3131 and the main air inlet pipe 312 , and a bend pipe is also connected between the second horizontal straight pipe 3231 and the main air outlet pipe 322 .

[0151] By adopting the above technical solution, the air inlet branch 313 and the air outlet branch 323 can connect a layer of energy storage modules 20 to match the fire protection requirements of multiple energy storage modules 20, and the structure is relatively simple.

[0152] The fire protection structure 30 is detachably connected to the bracket 10 for easy transportation and disassembly. In some embodiments, both ends of the first connecting pipe 3132 are connected to the first horizontal straight pipe through the first quick-release structure 33; and / or both ends of the second connecting pipe 3232 are connected to the second horizontal straight pipe through the first quick-release structure 33.

[0153] The first quick-release structure 33 is, for example, a pipeline connection flange. In other embodiments, the first quick-release structure 33 may also be a connecting pipe body, a threaded structure or other structures.

[0154] Optionally, the first connecting tube 3132 and / or the second connecting tube 3232 are both U-shaped tubes. In other embodiments, the first connecting tube 3132 and / or the second connecting tube 3232 may also be other types of curved tubes, or may be straight tubes.

[0155] The valve tower is relatively large and has size restrictions during transportation. In addition, the fire protection structure 30 can be arranged on the periphery of the bracket 10. If the fire protection structure 30 is pre-assembled on the bracket 10, the size of the valve tower may exceed the transportation limit. The fire protection structure 30 of the embodiment of the present application includes a quick-release structure, which can realize the quick installation and removal of the fire protection structure 30 and facilitate the transportation of the energy storage device 100. The air inlet branch 313 and the air outlet branch 323 can be arranged around the outside of the bracket 10, surrounding the side of a layer of energy storage modules 20.

[0156] In some embodiments, the air inlet branch 313 is detachably connected to the air inlet main path 312 ; and / or the air outlet branch 323 is detachably connected to the air outlet main path 322 .

[0157] By adopting the above technical solution, the fire protection structure 30 is convenient for transportation, assembly and disassembly, thus saving transportation costs.

[0158] In some embodiments, the air inlet branch 313 is connected to the air inlet main path 312 via a transfer tube 38; and / or the air outlet branch 323 is connected to the air outlet main path 322 via a transfer tube 38; wherein at least one end of the transfer tube 38 is provided with a flexible joint 381.

[0159] The transfer tube 38 can be a straight tube, a curved tube, etc., as long as it is adapted to the structure of the bracket 10; a flexible joint 381 is provided at one or both ends of the transfer tube 38. During assembly, the main air inlet path 312 can be first fixedly connected to the bracket 10, and then the air inlet branch 313 can be connected to the main air inlet path 312 through the transfer tube 38; the main air outlet path 322 can be first fixedly connected to the bracket 10, and then the air outlet branch 323 can be connected to the main air outlet path 322 through the transfer tube 38.

[0160] By adopting the above technical solution, a detachable connection between the air inlet branch 313 and the air inlet main path 312 and / or a detachable connection between the air outlet branch 323 and the air outlet main path 322 is achieved.

[0161] In some embodiments, the air inlet pipe body 311 is connected to the air inlet branch 313 via the second quick-release structure 34; and / or the air outlet pipe body 321 is connected to the air outlet branch 323 via the second quick-release structure.

[0162] The second quick-release structure 34 may be a flexible joint. In other embodiments, the second quick-release structure 34 may also include a threaded structure or other quick-release structures.

[0163] By adopting the above technical solution, the air inlet pipe body 311 and the air outlet pipe body 321 can be quickly disassembled, and the fire protection structure 30 is easy to assemble, disassemble and transport.

[0164] In addition, the air inlet pipeline 31 and the air outlet pipeline 32 can be fixed on the bracket 10 through a supporting structure or a fastening structure, and the installation method is simple and convenient.

[0165] Please refer to Figure 4 and Figure 5 In some embodiments, the fire protection structure 30 further includes a filter 36 disposed on the gas outlet pipe 32 , and the filter 36 is used to filter gas particles.

[0166] After the fire extinguishing gas is input into the energy storage module 20, the gas outlet pipeline 32 can discharge the gas in the energy storage module 20. If the battery in the energy storage module 20 generates smoke due to thermal runaway, the fire extinguishing gas can bring the smoke out together, and the filter 36 can filter and collect gas particles in the smoke to prevent the gas particles from entering the main gas outlet path 322.

[0167] like Figure 4 As shown, the filter 36 is detachably disposed between the outlet branch 323 and the outlet main path 322 .

[0168] The filter 36 can prevent gas particles in the outlet branch 323 from entering the outlet main path 322, and the filter 36 is detachably connected to facilitate replacement. For example, the filter 36 is connected to the outlet branch 323 and / or the outlet main path 322 via the third quick-release structure 35.

[0169] In other embodiments, the filter 36 may also be disposed on the air outlet branch 323 or on the air outlet pipe body 321 .

[0170] In some embodiments, the fire protection structure 30 further includes a control valve disposed on the air intake pipe body 311 , and the control valve is used to control the on-off of the air intake pipe body 311 .

[0171] The control valve is, for example, a solenoid valve, etc. The control valve can control the on-off of the air intake pipe body 311 to control the air intake pipeline 31 to supply fire extinguishing gas into the energy storage module 20 .

[0172] By adopting the above technical solution, the fire-fighting structure 30 can selectively supply fire-extinguishing gas to the energy storage module 20, so as to accurately extinguish the fire in each energy storage module 20 and reduce the amount of fire-extinguishing gas used.

[0173] In some embodiments, the fire protection structure 30 further includes a detection device disposed at the energy storage module 20, the detection device is used to detect environmental indicators in the energy storage module 20, and the control valve controls the on-off of the air intake pipe body 311 according to the detection result of the detection device.

[0174] The environmental index in the energy storage module 20 represents the probability of fire in the energy storage module 20, and the environmental index may be an index such as smoke concentration, gas concentration, temperature, etc. The detection device may include at least one of a smoke concentration sensor, a gas concentration sensor, and a temperature sensor. The smoke concentration sensor can detect the smoke concentration in the energy storage module 20, the gas concentration sensor can detect the gas concentration in the energy storage module 20, and the temperature sensor can detect the temperature in the energy storage module 20.

[0175] By adopting the above technical solution, the control valve can control the opening of the air intake pipe body 311 according to the detection result, and supply fire extinguishing gas to the corresponding energy storage module 20 through the air intake main path 312 to achieve precise fire extinguishing.

[0176] It can be understood that in order to make the energy storage modules 20 in an oxygen-free or low-oxygen environment, the fire protection structure 30 can also continuously supply fire extinguishing gas to each energy storage module 20 .

[0177] In some embodiments, the fire protection structure 30 further includes a fire protection pressure relief valve 37 , which is connected to the gas outlet pipeline 32 .

[0178] The fire relief valve 37 may be disposed at the top of the bracket 10 . The fire relief valve 37 can release the gas in the gas outlet pipeline 32 to prevent the gas pressure in the gas outlet pipeline 32 from being too high.

[0179] Optionally, a pressure detection instrument is also provided on the gas outlet pipeline 32, and when the pressure reaches a certain value, the fire relief valve 37 will release the pressure. Optionally, the fire relief valve 37 can also release the pressure regularly.

[0180] In some embodiments, the fire extinguishing gas is an inert gas fire extinguishing agent.

[0181] The inert gas fire extinguishing agent may include nitrogen or other inert gases. The inert gas fire extinguishing agent can make the interior of the sealed energy storage module 20 an oxygen-free environment, thereby preventing fire from the source.

[0182] Please refer to Figure 1 , Figure 4 and Figure 7 In some embodiments, the air inlet pipeline 31 is used to connect to the fire extinguishing gas preparation device 200 .

[0183] The fire extinguishing gas preparation device 200 is a device capable of preparing fire extinguishing gas. Compared with the fire extinguishing agent storage device, the fire extinguishing gas preparation device can continuously supply fire extinguishing agent to ensure that the fire extinguishing gas supply will not fail. The fire extinguishing gas preparation device 200 can supply fire extinguishing gas to multiple energy storage devices at the same time, which is convenient for maintenance and solves the problem of limited storage capacity of steel cylinders.

[0184] Please refer to Figures 1 to 6 In some embodiments, the fire protection structure 30 includes an air inlet pipeline 31 and an air outlet pipeline 32; the air inlet pipeline 31 includes an air inlet main pipeline 312 and multiple air inlet branches 313 connected to the air inlet main pipeline 312, and multiple air inlet pipe bodies 311 are provided on the air inlet branches 313; the air outlet pipeline 32 includes an air outlet main pipeline 322 and multiple air outlet branches 323 connected to the air outlet main pipeline 322, and multiple air outlet pipe bodies 321 are provided on the air outlet branches 323; the air inlet pipe bodies 311 and the air outlet pipe bodies 321 are respectively connected to the energy storage module 20. The multiple air inlet branches 313 are arranged at intervals along the height direction of the bracket 10, and the multiple air outlet branches 323 are arranged at intervals along the height direction of the bracket 10, and the air inlet branches 313 and the air outlet branches 323 are respectively arranged along the circumference of the bracket 10. A plurality of air inlet branches 313 are arranged in parallel and are respectively detachably connected to the air inlet main path 312 ; a plurality of air outlet branches 323 are arranged in parallel and are respectively detachably connected to the air outlet main path 322 .

[0185] Please refer to Figures 1 to 6An embodiment of the second aspect of the present application proposes an energy storage device 100, including a bracket 10, an energy storage module 20 detachably arranged on the bracket 10, and a fire protection structure 30, wherein the fire protection structure 30 is connected to the energy storage module 20.

[0186] The energy storage device 100 provided in the embodiment of the present application includes a fire-fighting structure 30, so that fire-extinguishing gas is distributed in the energy storage module 20, and the energy storage module 20 can be in an oxygen-free or low-oxygen environment. The fire-fighting structure 30 can not only extinguish the burning energy storage module 20, but also reduce the possibility of combustion of the energy storage module 20 from the source. Therefore, the energy storage device has higher reliability.

[0187] In some embodiments, the energy storage device 100 includes a support 10, a plurality of energy storage modules 20 arranged on the support 10, and a fire protection structure 30, wherein the fire protection structure 30 includes an air inlet pipeline 31 and an air outlet pipeline 32; the air inlet pipeline 31 includes an air inlet main pipeline 312 and a plurality of air inlet branches 313 connected to the air inlet main pipeline 312, and a plurality of air inlet pipe bodies 311 are arranged on the air inlet branch 313; the air outlet pipeline 32 includes an air outlet main pipeline 322 and a plurality of air outlet branches 323 connected to the air outlet main pipeline 322, and a plurality of air outlet pipe bodies 321 are arranged on the air outlet branch 323; the air inlet pipe body 311 and the air outlet pipe body 321 are respectively connected to the energy storage module 20. The plurality of air inlet branches 313 are arranged at intervals along the height direction of the support 10, the plurality of air outlet branches 323 are arranged at intervals along the height direction of the support 10, and the air inlet branches 313 and the air outlet branches 323 are respectively arranged along the circumference of the support 10. The energy storage device 100 may be a multi-layer valve tower, which can effectively prevent and extinguish fire, reduce the risk of fire, and has high reliability.

[0188] The transmission path of the fire-extinguishing gas is as follows: the fire-fighting pipeline inlet 3121 enters the main air inlet path 312, then enters the parallel air inlet branches 313 from the main air inlet path 312, and enters the energy storage module 20 through the air inlet pipe body 311; the fire-extinguishing gas and other gases in the energy storage module 20 enter the air outlet branch 323 from the air outlet pipe body 321, and the gas in the air outlet branch 323 of each layer enters the main air outlet path 322, and is discharged through the fire-fighting pipeline outlet 3221.

[0189] In some embodiments, the fire fighting structure 30 is detachably connected to the bracket 10. The fire fighting structure 30 can be transported separately and then assembled on the bracket 10. The fire fighting structure 30 and the bracket 10 can be connected in a variety of ways, for example, the bracket 10 is provided with a clamp, and the air inlet pipeline 31 and the air outlet pipeline 32 are fixed to the bracket 10 through the clamp; for another example, the bracket 10 is provided with a through hole, and the air inlet pipeline 31 and the air outlet pipeline 32 are respectively penetrated in the through hole.

[0190] By adopting the above technical solution, the fire protection structure 30 can be transported separately, which facilitates the transportation of the energy storage device 100 and reduces the difficulty of transportation and assembly.

[0191] In some embodiments, the energy storage device 100 is a valve tower, the energy storage module 20 includes an electrical cabinet 21 and a power module 22, the air inlet pipeline 31 and the air outlet pipeline 32 are connected to the electrical cabinet 21, and the air inlet pipeline 31 and the air outlet pipeline 32 are connected to the power module 22.

[0192] For example, the energy storage device 100 includes three layers of energy storage modules 20 , each layer is provided with multiple electrical cabinets 21 , a power module 22 and a junction cabinet 23 , multiple batteries are provided in the electrical cabinet 21 , and the current of the battery can be transmitted to the power module 22 through the junction cabinet 23 .

[0193] Specifically, the electric cabinet 21 is connected to the electric cabinet 21 air inlet pipe body 311a and the electric cabinet 21 air outlet pipe body 321a, and the power module 22 is also connected to the power module 22 air inlet pipe body 311b and the power module 22 air outlet pipe body 321. Both the electric cabinet 21 and the power module 22 can be filled with fire extinguishing gas.

[0194] The existing fire protection structure 30 is usually only applicable to the battery and electrical cabinet levels. The fire protection structure 30 provided in the embodiment of the present application can adapt to the fire protection requirements of the valve tower and improve the reliability of the valve tower.

[0195] Please refer to Figures 1 to 7 The embodiment of the second aspect of the present application provides an energy storage system 1000, including the energy storage device 100 provided in the first aspect, an air intake collection pipeline 300 and an air outlet collection pipeline 400, wherein the air intake collection pipeline 300 is connected to the air intake pipeline 31 in the energy storage device 100, and the air outlet collection pipeline 400 is connected to the air outlet pipeline 32 in the energy storage device 100. Figure 4 and 7 As shown, the energy storage device 100 is connected to the air intake collecting pipeline 300 through the fire pipeline inlet 3121 , and is connected to the air outlet collecting pipeline 400 through the fire pipeline outlet 3221 .

[0196] The energy storage system 1000 may include one or more energy storage devices 100, which may be arranged in series and / or in parallel, and the air intake collection pipeline 300 is used to connect the fire extinguishing gas preparation device 200, and the air intake collection pipeline 300 can simultaneously supply fire extinguishing gas to multiple energy storage devices 100. The above energy storage system 1000 can perform fire control on one or more energy storage devices 100, thereby improving the reliability of the energy storage device 100.

[0197] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A fire protection structure, characterized in that: The fire protection structure is used in an energy storage device, and the energy storage device includes a bracket and an energy storage module arranged on the bracket; The fire-fighting structure is detachably mounted on the bracket, and includes an air inlet pipeline and an air outlet pipeline. The air inlet pipeline is used to communicate with the energy storage module to input fire-extinguishing gas into the energy storage module, and the air outlet pipeline is used to communicate with the energy storage module to output the gas in the energy storage module.

2. The fire fighting structure according to claim 1, characterized in that: The air intake pipeline comprises an air intake main path and an air intake branch path connected to the air intake main path, and an air intake pipe body is arranged on the air intake branch path; The air outlet pipeline comprises an air outlet main path and an air outlet branch path connected to the air outlet main path, and an air outlet pipe body is arranged on the air outlet branch path; The air inlet pipe body and the air outlet pipe body are respectively used to communicate with the energy storage module.

3. The fire fighting structure according to claim 2, characterized in that: In the energy storage module, the installation height of the air inlet pipe body is lower than the installation height of the air outlet pipe body, and the air inlet pipe body and the air outlet pipe body are arranged along the diagonal edges of the energy storage module.

4. The fire fighting structure according to claim 2, characterized in that: The air intake branch is provided with a plurality of the air intake pipe bodies and the plurality of the air intake pipe bodies are connected in series and / or in parallel; A plurality of the air outlet pipe bodies are arranged on the air outlet branch and the plurality of the air outlet pipe bodies are connected in series and / or in parallel.

5. The fire fighting structure according to claim 2, characterized in that: The plurality of energy storage modules are arranged in multiple layers along the height direction of the bracket; The air inlet branch is used to connect at least one layer of the energy storage module, and the air outlet branch is used to connect at least one layer of the energy storage module.

6. The fire fighting structure according to claim 5, characterized in that: The number of the air intake branches is multiple and the multiple air intake branches are arranged in parallel, and / or, The number of the air outlet branches is multiple and the multiple air outlet branches are arranged in parallel.

7. The fire fighting structure according to claim 6, characterized in that: The main air inlet path and the main air outlet path can extend along the height direction of the bracket, the main air inlet path has a fire-fighting pipeline inlet, and the main air outlet path has a fire-fighting pipeline outlet; The plurality of air inlet branches are arranged at intervals along the height direction of the air inlet main path, the plurality of air outlet branches are arranged at intervals along the height direction of the air outlet main path, and the air inlet branches and the air outlet branches are respectively arranged along the circumference of the bracket.

8. The fire fighting structure according to claim 7, characterized in that: The number of the air inlet branches and the air outlet branches is the same and they are arranged alternately.

9. The fire fighting structure according to any one of claims 2 to 8, characterized in that: The air intake branch includes at least two first horizontal straight pipes arranged in parallel and at intervals and a first connecting pipe connected between the two first horizontal straight pipes, one of the first horizontal straight pipes is connected to the air intake main pipe; and / or; the air outlet branch includes at least two second horizontal straight pipes arranged in parallel and at intervals and a second connecting pipe connected between the two second horizontal straight pipes, one of the second horizontal straight pipes is connected to the air outlet main pipe.

10. The fire fighting structure according to claim 9, characterized in that: Both ends of the first connecting pipe are respectively connected to the first horizontal straight pipeline through a first quick-release structure; and / or Both ends of the second connecting pipe are connected to the second horizontal straight pipeline through the first quick-release structure.

11. The fire fighting structure according to any one of claims 2 to 8, characterized in that: The air intake branch is detachably connected to the air intake main path; and / or, The air outlet branch is detachably connected to the air outlet main path.

12. The fire fighting structure according to claim 11, characterized in that: The air intake branch is connected to the air intake main path via a transfer tube; and / or, The outlet branch is connected to the outlet main path via a transfer tube; Wherein, at least one end of the transfer tube is provided with a flexible joint.

13. The fire fighting structure according to any one of claims 2 to 8, characterized in that: The air intake pipe body is connected to the air intake branch through a second quick-release structure; and / or, The air outlet pipe body is connected to the air outlet branch through the second quick-release structure.

14. The fire fighting structure according to any one of claims 1 to 8, characterized in that: The fire protection structure also includes a filter arranged on the gas outlet pipeline, and the filter is used for filtering gas particles.

15. The fire fighting structure according to claim 14, characterized in that: The filter is detachably arranged between the air outlet branch and the air outlet main path.

16. The fire fighting structure according to any one of claims 2 to 8, characterized in that: The fire protection structure also includes a control valve arranged on the air intake pipe body, and the control valve is used to control the on-off of the air intake pipe body.

17. The fire fighting structure according to claim 16, characterized in that: The fire protection structure also includes a detection device arranged at the energy storage module, the detection device is used to detect environmental indicators in the energy storage module, and the control valve controls the on-off of the air intake pipe body according to the detection result of the detection device.

18. The fire fighting structure according to any one of claims 1 to 8, characterized in that: The fire protection structure also includes a fire protection pressure relief valve, which is connected to the air outlet pipeline.

19. The fire fighting structure according to any one of claims 1 to 8, characterized in that: The fire extinguishing gas is an inert gas fire extinguishing agent.

20. The fire fighting structure according to any one of claims 1 to 8, characterized in that: The air inlet pipeline is used to connect to the fire extinguishing gas preparation device.

21. An energy storage device, characterized in that: include: Bracket; An energy storage module is arranged on the bracket; The fire protection structure according to any one of claims 1 to 20 is detachably arranged on the bracket and connected to the energy storage module.

22. The energy storage device according to claim 21, characterized in that: The energy storage device is a valve tower, the energy storage module includes an electric cabinet and a power module, the air inlet pipeline and the air outlet pipeline are connected to the electric cabinet, and the air inlet pipeline and the air outlet pipeline are connected to the power module.

23. An energy storage system, characterized in that: include: At least one energy storage device as claimed in any one of claims 21 and 22; An air intake collecting pipeline, connected to an air intake pipeline in the energy storage device; The gas outlet collecting pipeline is communicated with the gas outlet pipeline in the energy storage device.

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