Distributed energy storage fire extinguishing system

Abstract

The utility model provides a distributed energy storage fire extinguishing system which comprises a cabinet, an energy storage device and a water supply pipeline, the energy storage device is contained in the cabinet and comprises a battery pack, the battery pack comprises a battery pack shell and battery cells, the battery cells are sequentially arranged in the battery pack shell side by side, the battery pack shell comprises a cooling pipe, and the cooling pipe is arranged in the cabinet. The cooling pipe is arranged on one side, close to the battery cell, of the top of the battery pack shell and is provided with a guide opening; the bottom of the cabinet is provided with a fire coupling. The water supply pipeline comprises a water supply header pipe and a water supply sub-pipe, the water supply header pipe is fixed in the cabinet, one end of the water supply header pipe is connected with the fire coupling, the other end of the water supply header pipe is connected with the water inlet end of the water supply sub-pipe, and the water outlet end of the water supply sub-pipe is connected with the cooling pipe. According to the system, the cooling medium is conveyed into the battery pack shell through the water conveying pipeline, the temperature in the battery pack can be reduced, and the cooling efficiency of the distributed energy storage fire fighting system is improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage cabinets, and particularly to a distributed energy storage fire protection system. Background Art

[0002] A distributed energy storage system can balance the power grid supply and demand and improve the energy utilization efficiency. The core of the distributed energy storage system is the distributed energy storage cabinet. The distributed energy storage cabinet can store and release electric energy according to a preset charge and discharge strategy, thereby improving the stability of the power system. Among them, the battery pack is the energy storage unit of the distributed energy storage cabinet. During the use of the distributed energy storage cabinet, heat is generated when the battery pack charges or discharges. If the heat of the battery pack cannot be dissipated in time, it will cause the temperature inside the battery pack to rise, thereby reducing the performance and service life of the battery pack, and even causing battery thermal runaway.

[0003] By setting a fire protection water pipe in the distributed energy storage cabinet, water mist can be released by the water mist nozzle of the fire protection water pipe when the battery is thermally out of control, thereby cooling the battery pack. However, in the above process, the water mist nozzle only sprays water mist on the outer surface of the battery pack. Due to the barrier of the battery pack housing, the heat inside the battery pack is difficult to dissipate. Therefore, the above method has low cooling efficiency and poor effect on the distributed energy storage cabinet. Summary of the Utility Model

[0004] This application provides a distributed energy storage fire protection system to solve the problems of low cooling efficiency and poor effect of the distributed energy storage cabinet when the battery is thermally out of control.

[0005] This application provides a distributed energy storage fire protection system, including: a cabinet, an energy storage device, and a water supply pipeline;

[0006] The energy storage device is accommodated in the cabinet. The energy storage device includes a battery pack. The battery pack includes a battery pack housing and battery cells. The battery cells are arranged side by side in the battery pack housing in sequence. The battery pack housing includes a cooling pipe. The extending direction of the cooling pipe is parallel to the side-by-side direction of the battery cells. The cooling pipe is arranged on one side of the top of the battery pack housing close to the battery cells. The cooling pipe is provided with a guiding port;

[0007] A fire protection interface is provided at the bottom of the cabinet;

[0008] The water supply pipeline includes a water supply main pipe and a water supply sub-pipe. The water supply main pipe is fixed inside the cabinet. One end of the water supply main pipe is connected to the fire protection interface, and the other end of the water supply main pipe is connected to the water inlet end of the water supply sub-pipe. The water outlet end of the water supply sub-pipe is connected to the cooling pipe.

[0009] Based on the above technical features, the distributed energy storage fire protection system uses a water supply pipeline to transport a cooling medium into the energy storage device. The cooling medium flows from the main water supply pipe into the sub-water supply pipes and then into the cooling pipes within the battery pack housing. It flows into the battery cells through the guiding openings provided in the cooling pipes, so as to transfer the heat generated by the battery cells to the cooling medium, thereby reducing the temperature of the distributed energy storage fire protection system.

[0010] In a possible implementation, the number of sub-water supply pipes is greater than or equal to the number of battery packs.

[0011] Based on the above technical features, by connecting the battery pack to one or more sub-water supply pipes, when a thermal runaway occurs in the battery of the distributed energy storage fire protection system, the sub-water supply pipes are used to input the cooling medium into the battery pack, thereby reducing the temperature of the battery cells within the battery pack.

[0012] In a possible implementation, the opening direction of the guiding opening faces the battery cell, and the number of guiding openings is greater than or equal to the number of battery cells.

[0013] Based on the above technical features, by providing one or more guiding openings above each battery cell, the heat generated by the battery cells is transferred to the cooling medium, thereby reducing the temperature of the battery cells.

[0014] In a possible implementation, the cabinet further includes an external water valve; the external water valve is fixedly connected to the fire protection interface.

[0015] Based on the above technical features, the pipeline of the fire protection interface is opened and closed through the external water valve, thereby controlling the flow of the cooling medium.

[0016] In a possible implementation, the end of the cooling pipe is provided with an opening; the sub-water supply pipe is inserted and connected to the cooling pipe through the opening.

[0017] Based on the above technical features, the sub-water supply pipe is fixedly connected to the cooling pipe through the opening at the end of the cooling pipe, so as to improve the sealing performance of the pipeline connection and the convenience of operation, enhance the structural strength of the connection part, and extend the service life of the cooling pipe.

[0018] In a possible implementation, the cabinet further includes drawers; the drawers are evenly distributed inside the cabinet, and the energy storage device is fixed above the drawers.

[0019] Based on the above technical features, by fixing the energy storage device above the drawers, the battery packs in the energy storage device can be independent modules, and it is convenient to separately take out or insert the battery packs, thereby simplifying the installation and maintenance process of the distributed energy storage fire protection system.

[0020] In a possible implementation, drawer supports are symmetrically provided at both ends inside the cabinet; the drawers are connected to the drawer supports.

[0021] Based on the above technical features, the bottom of the drawer can be supported by the drawer support member, so that the drawer can be fixed in the cabinet, increasing the load-bearing capacity and stability of the drawer. By connecting the drawer to the drawer support member, the smoothness of the drawer when opening or closing is improved, preventing the drawer from falling off.

[0022] In a possible implementation, the distributed energy storage fire protection system further includes a base; the base is arranged below the cabinet.

[0023] Based on the above technical features, by providing a stable support platform for the cabinet through the base, the stability of the cabinet can be increased, and the displacement or damage to the distributed energy storage fire protection system caused by vibration can be reduced.

[0024] In a possible implementation, the distributed energy storage fire protection system further includes a heat dissipation device, and the heat dissipation device is arranged at the bottom of the cabinet; the heat dissipation device includes an air inlet and an air outlet; the air inlet is arranged on the first side of the cabinet, and the air outlet is arranged on the second side of the cabinet, and the first side is the opposite side of the second side.

[0025] Based on the above technical features, by introducing cold air into the cabinet through the air inlet and discharging the hot air inside the cabinet through the air outlet, the air flow inside the cabinet can be promoted, and it helps to reduce the temperature of the equipment inside the cabinet, thereby improving the heat dissipation efficiency of the distributed energy storage fire protection system.

[0026] In a possible implementation, a top connection member is provided at the top corner of the cabinet, and the top connection member is connected to the cabinet.

[0027] Based on the above technical features, by reserving interfaces such as cables or pipes on the top connection member, it is convenient for subsequent installation, maintenance and repair work of the distributed energy storage fire protection system.

[0028] From the above technical solutions, the present application provides a distributed energy storage fire protection system, including: a cabinet, an energy storage device and a water supply pipeline; the energy storage device is accommodated in the cabinet, the energy storage device includes a battery pack, the battery pack includes a battery pack housing and battery cells, the battery cells are arranged in parallel in sequence in the battery pack housing, the battery pack housing includes a cooling pipe, the extending direction of the cooling pipe is parallel to the parallel direction of the battery cells, the cooling pipe is arranged on one side of the top of the battery pack housing close to the battery cells, and the cooling pipe is provided with a guiding port; a fire protection interface is arranged at the bottom of the cabinet; the water supply pipeline includes a water supply main pipe and a water supply sub-pipe, the water supply main pipe is fixed inside the cabinet, one end of the water supply main pipe is connected to the fire protection interface, the other end of the water supply main pipe is connected to the water inlet end of the water supply sub-pipe, and the water outlet end of the water supply sub-pipe is connected to the cooling pipe. The system can send the cooling medium into the battery pack housing through the water supply pipeline, reduce the temperature inside the battery pack, and improve the cooling efficiency of the distributed energy storage fire protection system. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the present application, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative efforts.

[0030] Figure 1 Schematic diagram of the cabinet structure described in the embodiments of the present application;

[0031] Figure 2 Schematic diagram of the structure of the distributed energy storage fire protection system described in the embodiments of the present application;

[0032] Figure 3 Schematic diagram of the cooling pipe assembly described in the embodiments of the present application;

[0033] Figure 4 Schematic diagram of the battery pack assembly described in the embodiments of the present application;

[0034] Figure 5 Schematic diagram of the structure of the cooling pipe interface described in the embodiments of the present application.

[0035] Illustration:

[0036] Wherein: 100 - cabinet; 101 - external water valve; 102 - drawer; 103 - top connector; 200 - energy storage device; 201 - battery pack; 202 - battery pack housing; 203 - battery cell; 204 - cooling pipe; 300 - water supply pipeline; 301 - main water supply pipe; 302 - sub - water supply pipe; 400 - base; 500 - heat dissipation device; 501 - air inlet; 502 - air outlet. Specific implementation manners

[0037] The embodiments will be described in detail below, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following embodiments do not represent all implementation manners consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application detailed in the claims.

[0038] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementation manners, rather than intending to limit the implementation manners of the present application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0039] The terms "first", "second", "third", etc. in the specification, claims and above - mentioned accompanying drawings of the present application are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms can be interchanged under appropriate circumstances.

[0040] A distributed energy storage system is a device that combines energy storage technology with distributed generation technology. It can be used to balance the supply and demand of the power grid and improve energy efficiency. A distributed energy storage system stores electrical energy and releases it when it is needed to provide power to equipment. A distributed energy storage system includes a distributed energy storage cabinet. The distributed energy storage cabinet can store and release electrical energy according to a preset charging and discharging strategy, thereby improving the stability of the power system.

[0041] The energy storage unit of the distributed energy storage cabinet is a battery pack, which is composed of multiple battery cells combined in a specific connection method. The battery cells can be lithium-ion batteries, lead-acid batteries, sodium-ion batteries or flow batteries, etc. During the use of the distributed energy storage cabinet, it is necessary to detect the temperature of the battery pack and dissipate the heat inside the battery pack in time to reduce the impact of the high temperature inside the battery pack on the performance and service life of the battery. For example, high temperature will cause the internal impedance of the battery to increase, thereby reducing the output power and energy density of the battery, which will cause the battery to be unable to provide normal voltage and current, affecting the normal operation of the equipment. For another example, working at high temperature will accelerate the aging process of the material, which will lead to a decrease in battery capacity, resulting in the inability to store and release the original power, shortening the battery's service life.

[0042] In some embodiments, when the temperature inside the battery pack reaches a certain level, the chemical substances in the battery cell react violently, generating a large amount of gas and heat, causing the internal pressure of the battery to increase rapidly, thereby causing thermal runaway. Battery thermal runaway refers to the situation in which the internal temperature of the battery rises sharply due to various reasons during the use or charging of the battery, and cannot be effectively controlled or cooled, which can easily cause safety problems such as battery overheating, combustion, or even explosion.

[0043] In some embodiments, a temperature monitoring module is configured in the distributed energy storage system. When the battery temperature exceeds a preset safety threshold, the battery is automatically disconnected from the external circuit to prevent further accumulation of battery heat. However, if the internal temperature of the battery continues to rise and exceeds the system's tolerance, it may still cause a safety accident in the distributed energy storage system.

[0044] In some embodiments, by setting a fire hose in the distributed energy storage cabinet, the water mist nozzle of the fire hose can be used to release water mist when the battery thermal runaway occurs, thereby cooling the battery pack. However, in the above process, the water mist nozzle only sprays water mist on the outer surface of the battery pack. Due to the obstruction of the battery pack shell, the heat inside the battery pack is difficult to dissipate. Therefore, the above method has low cooling efficiency and poor effect on the distributed energy storage cabinet.

[0045] To solve the problems of low cooling efficiency and poor effect when the battery in the distributed energy storage cabinet is in thermal runaway, some embodiments of the present application provide a distributed energy storage fire protection system. Figure 1 Schematic diagram of the cabinet structure according to an embodiment of the present application Figure 2 Schematic diagram of the structure of the distributed energy storage fire protection system according to an embodiment of the present application Figure 3 Schematic diagram of the cooling pipe assembly according to an embodiment of the present application Figure 4 Schematic diagram of the battery pack assembly according to an embodiment of the present application Figure 5 Schematic diagram of the cooling pipe interface structure according to an embodiment of the present application. The following will be combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 to elaborate in detail on the distributed energy storage fire protection system provided by the present application.

[0046] Some embodiments of the present application provide a distributed energy storage fire protection system, including: a cabinet 100, an energy storage device 200, and a water supply pipeline 300; the energy storage device 200 is accommodated in the cabinet 100, the energy storage device 200 includes a battery pack 201, the battery pack 201 includes a battery pack housing 202 and battery cells 203, the battery cells 203 are arranged in parallel in sequence within the battery pack housing 202, the battery pack housing 202 includes a cooling pipe 204, the extending direction of the cooling pipe 204 is parallel to the parallel direction of the battery cells 203, the cooling pipe 204 is arranged on one side of the top of the battery pack housing 202 close to the battery cells 203, and the cooling pipe 204 is provided with a guiding port.

[0047] The bottom of the cabinet 100 is provided with a fire protection interface; the water supply pipeline 300 includes a water supply main pipe 301 and water supply sub-pipes 302, the water supply main pipe 301 is fixed inside the cabinet 100, one end of the water supply main pipe 301 is connected to the fire protection interface, the other end of the water supply main pipe 301 is connected to the water inlet end of the water supply sub-pipes 302, and the water outlet end of the water supply sub-pipes 302 is connected to the cooling pipe 204.

[0048] Exemplarily, as Figure 1 shown, the cabinet 100 is composed of a frame and a housing, and is used to accommodate the energy storage device 200. The energy storage device 200 includes battery packs 201, and two battery packs 201 are combined in parallel to form a layer of battery pack combination, and each layer of battery pack combination is stacked in sequence to form the energy storage device 200 accommodated in the cabinet 100.

[0049] In some embodiments, multiple battery packs 201 are interconnected. The connection methods of the battery packs 201 include copper busbar connection, wire connection, and modular connection. Among them, the copper busbar connection uses copper busbars to weld or bolt each battery pack 201; the wire connection connects each battery pack 201 through a wire; and the modular connection uses a modular connector to connect multiple battery packs together. This application does not specifically limit the connection method between each battery pack 201.

[0050] In some embodiments, the battery pack 201 includes a battery pack housing 202 and battery cells 203, wherein the battery cells 203 are sequentially arranged in parallel in the battery pack housing 202. The battery pack housing 202 is used to protect the battery cells 203 to prevent the battery cells 203 from being damaged by external impact or extrusion.

[0051] The battery pack housing 202 may be made of a metal material or a composite material, wherein the metal material has high strength and rigidity, and can reduce the impact of external impact on the battery cell 203. Compared with metal materials, composite materials have the advantages of light weight, high strength and corrosion resistance. It should be understood that the present application does not specifically limit the material of the battery pack housing 202.

[0052] like Figure 2 As shown, multiple battery cells 203 are sequentially arranged in parallel in the battery pack housing 202, and the connection method between the multiple battery cells 203 is selected according to the actual application scenario and requirements. For example, battery cells A and B are connected in series, battery cells C and D are connected in parallel, and battery cells E, F, and G are connected in a mixed series-parallel manner.

[0053] In some embodiments, the battery pack housing 202 includes a cooling tube 204, such as Figure 3 As shown, the extension direction of the cooling tube 204 is parallel to the parallel direction of the battery cells 203 , the cooling tube 204 is arranged on one side of the top of the battery pack shell 202 close to the battery cells 203 , and the cooling tube 204 is provided with a guide opening.

[0054] Exemplarily, the cooling tube 204 is a hollow square tube. The cooling tube 204 is arranged on one side of the top of the battery pack shell 202 close to the battery cell 203. The length of the cooling tube 204 is the same as the total length of the multiple battery cells 203 in the parallel direction, that is, the cooling tube 204 can extend to the top of each battery cell 203.

[0055] The cooling tube 204 is provided with a guide port, and a cooling medium is injected into the cooling tube 204 and flows out from the guide port, and the high specific heat capacity and fluidity of the cooling medium are utilized to take away the heat generated by the battery cell 203, thereby achieving the purpose of cooling. The cooling medium may be water or a water-based solution, and the embodiment of the present application does not specifically limit the type of the cooling medium.

[0056] In some embodiments, the opening of the guiding port faces the battery cell 203, and the number of guiding ports is greater than or equal to the number of battery cells 203.

[0057] Exemplarily, as Figure 3 shown, the cooling pipe 204 is a straight pipe, the cooling pipe 204 is arranged at the central position of the battery cell 203, the cooling pipe 204 is provided with guiding ports, and the number of guiding ports is greater than or equal to the number of battery cells 203. That is, one or more guiding ports are provided above each battery cell 203, so that the cooling medium in the cooling pipe 204 can flow along the arrow direction, and then transfer the heat generated by the battery cell 203 to the cooling medium, reducing the temperature of the battery cell 203.

[0058] Exemplarily, the cooling pipe 204 is an S-shaped flat pipe, and the S-shaped flat pipe can increase the contact area between the cooling pipe 204 and the battery cell 203, improving the cooling effect.

[0059] In some embodiments, the distributed energy storage fire protection system conveys the cooling medium to the cooling pipe 204 through the water supply pipeline 300. Among them, the water supply pipeline 300 includes a water supply main pipe 301 and water supply sub-pipes 302. Referring again to Figure 1 , the water supply main pipe 301 is fixed inside the cabinet 100, one end of the water supply main pipe 301 is connected to the fire protection interface at the bottom of the cabinet 100, so that the cooling medium flows into the water supply main pipe 301 through the fire protection interface. The other end of the water supply main pipe 301 is connected to the water inlet end of the water supply sub-pipes 302, so that the cooling medium is divided and flows into each water supply sub-pipe 302.

[0060] As Figure 4 shown, the water outlet end of the water supply sub-pipe 302 is connected to the cooling pipe 204, and the cooling medium flows into the cooling pipe 204 from the water supply sub-pipe 302 along the arrow direction to reduce the temperature of the battery pack 201.

[0061] In some embodiments, the number of water supply sub-pipes 302 is greater than or equal to the number of battery packs 201. That is, each battery pack 201 is connected to one or more water supply sub-pipes 302, so that when the battery in the distributed energy storage fire protection system is thermally out of control, the cooling medium is input into each battery pack 201 through the water supply sub-pipes 302, thereby reducing the temperature inside the battery pack 201.

[0062] In some embodiments, the cabinet 100 further includes an external water valve 101; the external water valve 101 is fixedly connected to the fire protection interface. The external water valve 101 is used to open and close the pipeline of the fire protection interface, thereby controlling the flow of the cooling medium.

[0063] Exemplarily, when the temperature of the battery pack 201 in the distributed energy storage fire protection system is greater than the preset temperature threshold, the external water valve 101 is controlled to open, so that the cooling medium flows into the water supply pipeline 300.

[0064] Exemplarily, when the temperature in the battery pack 201 of the distributed energy storage fire protection system is less than or equal to the preset temperature threshold, the external water valve 101 is controlled to close to prevent the cooling medium from flowing into the water supply pipeline 300.

[0065] In some embodiments, an opening is provided at the end of the cooling pipe 204; as Figure 5 shown, the water supply sub-pipe 302 is inserted and connected to the cooling pipe 204 through the opening. By fixedly connecting the water supply sub-pipe 302 to the cooling pipe 204 through the opening at the end of the cooling pipe 204, the sealing performance of the pipeline connection and the operation convenience can be improved, the structural strength of the connection can be enhanced, and the service life of the cooling pipe 204 can be extended.

[0066] In some embodiments, the distributed energy storage fire protection system further includes a drain port, which is provided at the bottom of the cabinet 100 for discharging the cooling medium in the cabinet 100.

[0067] In some embodiments, the cabinet 100 further includes drawers 102; the drawers 102 are equally spaced inside the cabinet 100, and the energy storage device 200 is fixed above the drawers 102.

[0068] Fixing the energy storage device 200 above the drawer 102 can make the battery pack 201 in the energy storage device 200 an independent module, and facilitate the individual removal or insertion of the battery pack 201, thereby simplifying the installation and maintenance process of the distributed energy storage fire protection system.

[0069] Exemplarily, when the battery pack 201 in drawer A fails, drawer A can be pulled out of the cabinet 100 and replaced to reduce the downtime of the distributed energy storage fire protection system and improve the stability of the system.

[0070] In some embodiments, drawer supports are symmetrically provided at both ends inside the cabinet 100; the drawers 102 are connected to the drawer supports.

[0071] The drawer supports are used to support the bottom of the drawer 102 to fix the drawer 102 in the cabinet 100 and increase the load-bearing capacity and stability of the drawer 102. In addition, by connecting the drawer 102 to the drawer supports, the smoothness of the drawer 102 when opening or closing can be improved, and the drawer 102 can be prevented from falling off.

[0072] In some embodiments, the distributed energy storage fire protection system further includes a base 400; the base 400 is provided below the cabinet 100.

[0073] The base 400 is used to provide a stable support platform for the cabinet 100 to increase the stability of the distributed energy storage fire protection system and reduce the displacement or damage caused to the distributed energy storage fire protection system by vibration.

[0074] In some embodiments, the distributed energy storage fire protection system further includes a heat dissipation device 500, which is disposed at the bottom of the cabinet 100; the heat dissipation device 500 includes an air inlet 501 and an air outlet 502; the air inlet 501 is disposed on the first side of the cabinet 100, and the air outlet 502 is disposed on the second side of the cabinet 100, where the first side is the opposite side of the second side.

[0075] Exemplarily, the distributed energy storage fire protection system introduces cold air through the air inlet 501 into the interior of the cabinet 100, and discharges the hot air inside the cabinet 100 through the air outlet 502, so as to promote the air flow inside the cabinet 100, which helps to reduce the temperature of the equipment inside the cabinet 100 and improve the heat dissipation efficiency of the distributed energy storage fire protection system.

[0076] In some embodiments, a top connector 103 is provided at the top corner of the cabinet 100, and the top connector 103 is connected to the cabinet 100.

[0077] Exemplarily, interfaces for cables or pipes are reserved on the top connector 103 to facilitate subsequent installation, maintenance, and repair work of the distributed energy storage fire protection system.

[0078] As can be seen from the above technical solutions, the present application provides a distributed energy storage fire protection system, including: a cabinet 100, an energy storage device 200, and a water supply pipeline 300; the energy storage device 200 is accommodated in the cabinet 100, the energy storage device 200 includes a battery pack 201, the battery pack 201 includes a battery pack housing 202 and battery cells 203, the battery cells 203 are arranged in parallel in sequence inside the battery pack housing 202, the battery pack housing 202 includes a cooling pipe 204, the extending direction of the cooling pipe 204 is parallel to the parallel direction of the battery cells 203, the cooling pipe 204 is disposed on one side of the top of the battery pack housing 202 close to the battery cells 203, and the cooling pipe 204 is provided with a guiding port; a fire protection interface is provided at the bottom of the cabinet 100; the water supply pipeline 300 includes a main water supply pipe 301 and a sub-water supply pipe 302, the main water supply pipe 301 is fixed inside the cabinet 100, one end of the main water supply pipe 301 is connected to the fire protection interface, the other end of the main water supply pipe 301 is connected to the water inlet end of the sub-water supply pipe 302, and the water outlet end of the sub-water supply pipe 302 is connected to the cooling pipe 204. The system can send the cooling medium into the battery pack housing 202 through the water supply pipeline 300, which can reduce the temperature inside the battery pack 201 and improve the temperature reduction efficiency of the distributed energy storage fire protection system.

[0079] For the similar parts between the embodiments provided in the present application, reference can be made to each other. The specific embodiments provided above are only several examples under the general concept of the present application, and do not constitute a limitation on the protection scope of the present application. For those skilled in the art, any other embodiments expanded based on the solution of the present application without creative efforts belong to the protection scope of the present application.

Claims

1. A distributed energy storage fire protection system, characterized in that Comprising: Cabinet (100), energy storage device (200) and water supply pipeline (300); The energy storage device (200) is accommodated in the cabinet (100). The energy storage device (200) includes a battery pack (201). The battery pack (201) includes a battery pack housing (202) and battery cells (203). The battery cells (203) are arranged in parallel in sequence within the battery pack housing (202). The battery pack housing (202) includes a cooling pipe (204). The extending direction of the cooling pipe (204) is parallel to the parallel direction of the battery cells (203). The cooling pipe (204) is arranged on one side of the top of the battery pack housing (202) close to the battery cells (203). The cooling pipe (204) is provided with a guiding opening; A fire protection interface is provided at the bottom of the cabinet (100); The water supply pipeline (300) includes a water supply main pipe (301) and water supply sub-pipes (302). The water supply main pipe (301) is fixed inside the cabinet (100). One end of the water supply main pipe (301) is connected to the fire protection interface. The other end of the water supply main pipe (301) is connected to the water inlet end of the water supply sub-pipes (302). The water outlet end of the water supply sub-pipes (302) is connected to the cooling pipe (204).

2. The distributed energy storage fire protection system according to claim 1, characterized in that The number of the water supply sub-pipes (302) is greater than or equal to the number of the battery packs (201).

3. The distributed energy storage fire protection system according to claim 1, wherein, The opening of the guiding opening faces the battery cells (203). The number of the guiding openings is greater than or equal to the number of the battery cells (203).

4. The distributed energy storage fire protection system according to claim 1, wherein The cabinet (100) further includes an external water valve (101); The external water valve (101) is fixedly connected to the fire protection interface.

5. The distributed energy storage fire protection system according to claim 1, wherein An opening is provided at the end of the cooling pipe (204); The water supply sub-pipes (302) are inserted and connected to the cooling pipe (204) through the opening.

6. The distributed energy storage fire protection system according to claim 1, wherein, The cabinet (100) further includes a drawer (102); The drawers (102) are equally spaced within the cabinet (100). The energy storage device (200) is fixed above the drawer (102).

7. The distributed energy storage fire protection system according to claim 6, wherein, Drawer supports are symmetrically provided at both ends of the inner side of the cabinet (100); The drawer (102) is connected to the drawer support.

8. The distributed energy storage fire protection system according to claim 1, characterized in that Further comprising a base (400); The base (400) is arranged below the cabinet (100).

9. The distributed energy storage fire protection system according to claim 1, wherein Further comprising a heat dissipation device (500). The heat dissipation device (500) is arranged at the bottom of the cabinet (100); The heat dissipation device (500) includes an air inlet (501) and an air outlet (502); The air inlet (501) is arranged on the first side of the cabinet (100). The air outlet (502) is arranged on the second side of the cabinet (100). The first side is the opposite side of the second side.

10. The distributed energy storage fire protection system according to claim 1, characterized in that, Top connectors (103) are provided at the top corners of the upper end of the cabinet (100). The top connectors (103) are connected to the cabinet (100).

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