Fire extinguishing system for energy storage container and energy storage container

Abstract

The invention belongs to the technical field of energy storage equipment, and discloses a fire fighting system for an energy storage container and the energy storage container, the fire fighting system for the energy storage container comprises a passive fire fighting assembly composed of a pressure container, a fire fighting pipeline and a fire trace tube, and a fire extinguishing agent is stored in the pressure container; the fire fighting pipeline is used for communicating the pressure container with the fire trace tube, the fire trace tube is further provided with fire behavior triggering points in one-to-one correspondence with the multiple battery pack assemblies, the battery pack shell is provided with a weak structure, and the fire behavior triggering points correspond to the weak structure. The fire trace tube is filled with a fire extinguishing agent with pressure through the fire fighting pipeline, and the fire trace tube is provided with a plurality of fire behavior triggering points corresponding to the weak structures one by one, so that when any weak structure has a fire behavior, the high temperature can damage the corresponding fire behavior triggering point, and the fire extinguishing agent is sprayed out and directly acts on the weak structure with the fire behavior; therefore, in the early stage of the fire, the fire is controlled timely and accurately, and fire diffusion is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to a fire protection system for an energy storage container and an energy storage container. Background Art

[0002] The energy storage container is a kind of energy storage and power supply equipment that integrates energy storage and release, power system regulation and protection, and emergency backup power supply. Its main components include battery system, monitoring system, battery management unit, etc.

[0003] As an important device for storing and regulating energy, energy storage containers play a pivotal role in the field of new energy. However, due to its highly integrated battery system and complex electrical equipment, the potential fire hazards of energy storage containers during operation cannot be ignored. Therefore, for safety reasons, fire monitoring equipment is usually installed inside the energy storage container to monitor the inside of the energy storage container so that when a fire occurs, the main control system can be used to start the fire-fighting device and spray the fire extinguishing agent into the energy storage container to extinguish the fire.

[0004] However, it takes some time for the fire monitoring equipment to monitor and control, for the fire extinguishing agent to be sprayed into the energy storage container for fire extinguishing, for the fire extinguishing agent to reach the fire extinguishing point, and for a sufficient amount of fire extinguishing agent to accumulate at the fire extinguishing point. Therefore, in the early stage of the fire, it is impossible to carry out precise fire extinguishing in a timely and effective manner, thus losing the best time to control the fire. Summary of the invention

[0005] The object of the present invention is to provide a fire fighting system for an energy storage container and an energy storage container, which have short fire extinguishing time and high fire extinguishing accuracy.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In one aspect, a fire fighting system for an energy storage container is provided, wherein the energy storage container comprises a container body and a plurality of battery pack assemblies, wherein the battery pack assembly comprises a battery pack housing and a plurality of battery cells disposed in the battery pack housing, and wherein the fire fighting system for the energy storage container comprises a passive fire fighting component, wherein the passive fire fighting component comprises:

[0008] A pressure vessel, the pressure vessel being arranged in the container body and storing a fire extinguishing agent therein;

[0009] a fire-fighting pipeline, which is arranged in the container body and communicated with the pressure vessel; and

[0010] A fire detection tube is connected to the fire protection pipe, and is also provided with fire trigger points corresponding to the multiple battery pack assemblies one by one. A weak structure is provided on the battery pack shell, and the fire trigger points are arranged corresponding to the weak structure.

[0011] Optionally, the energy storage container also includes a first partition, which is arranged in the container body and divides the internal space of the container body into a fire-fighting chamber and a placement chamber. The multiple battery pack assemblies are arranged in the placement chamber, and the pressure vessel is arranged in the fire-fighting chamber.

[0012] Optionally, the passive fire protection assembly further comprises a mounting bracket, wherein the mounting bracket is arranged in the placement chamber, and the fire detection tube is laid on the mounting bracket.

[0013] Optionally, the passive fire protection assembly further includes a pressure relief valve, which is disposed on the container body and is used to release the pressure in the placement chamber.

[0014] Optionally, a first installation window communicating with the placement chamber is provided on the container body, and the pressure relief valve is provided in the first installation window.

[0015] Optionally, the fire-fighting system for the energy storage container also includes an active fire-fighting component, which is arranged on the container body and is used to transport fire-fighting water into the placement chamber so that the fire-fighting water submerges the battery pack assembly in the placement chamber.

[0016] Optionally, the active fire-fighting component includes a fire-fighting pipe joint and a water storage container provided on the container body, the water storage container stores the fire-fighting water and is provided on the outside of the container body, the fire-fighting pipe joint is provided on the container body and is used to connect the placement chamber and the water storage container.

[0017] Optionally, a second installation window communicating with the placement chamber is provided on the container body, and the fire pipe joint is provided in the second installation window.

[0018] Optionally, the energy storage container further includes a second partition, which is disposed in the placement chamber and divides the placement chamber into an energy storage chamber and a buffer chamber, and a plurality of the battery pack assemblies are disposed in the energy storage chamber.

[0019] On the other hand, an energy storage container is provided, wherein the energy storage container comprises the fire fighting system for the energy storage container as described in any one of the above items.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a fire protection system for an energy storage container, which is internally provided with a passive fire protection component consisting of a pressure vessel, a fire protection pipe and a fire detection pipe. The pressure vessel storing a fire extinguishing agent and the fire detection pipe are connected through the fire protection pipe, so that the fire detection pipe is filled with pressurized fire extinguishing agent, and a plurality of fire triggering points corresponding to the battery pack assembly are arranged on the fire detection pipe, and the fire triggering points are arranged corresponding to the weak structures on the battery pack shell, so that when a fire occurs in any weak structure, its high temperature will destroy the fire triggering point corresponding to it on the fire detection pipe, so that the pressurized fire extinguishing agent in the fire detection pipe is sprayed out, directly acting on the weak structure where the fire occurs, and performing a fire extinguishing operation, thereby timely and accurately controlling the fire in the early stage of the fire, and avoiding the spread of the fire.

[0022] The present invention also provides an energy storage container, which, by applying the above-mentioned fire protection system for energy storage containers, can timely and accurately extinguish the weak structures where fire occurs, thereby improving the safety of use of the energy storage container and the protection of the energy storage container. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the energy storage container provided by the present invention after the fire protection system for the energy storage container is installed;

[0024] Figure 2 It is a structural schematic diagram of the energy storage container provided by the present invention before the fire protection system for the energy storage container is installed;

[0025] Figure 3 It is a structural schematic diagram of the passive fire protection assembly provided by the present invention;

[0026] Figure 4 yes Figure 3 A magnified view of the structure of part A.

[0027] In the figure:

[0028] 100, container body; 101, fire fighting chamber; 102, energy storage chamber; 103, buffer chamber; 104, first installation window; 105, second installation window; 200, battery pack assembly; 201, weak structure; 202, battery pack housing; 300, first partition; 400, second partition;

[0029] 1. Passive fire protection components; 11. Pressure vessel; 12. Fire protection pipe; 13. Fire detection pipe; 131. Fire trigger point; 14. Mounting bracket; 15. Pressure relief valve;

[0030] 2. Fire-fighting pipe joint. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] The energy storage container is a kind of energy storage and power supply equipment that integrates energy storage and release, power system regulation and protection, and emergency backup power supply. Its main components include battery system, monitoring system, battery management unit, etc.

[0036] As an important device for storing and regulating energy, energy storage containers play a pivotal role in the field of new energy. However, due to its highly integrated battery system and complex electrical equipment, the potential fire hazards of energy storage containers during operation cannot be ignored. Therefore, for safety reasons, fire monitoring equipment is usually installed inside the energy storage container to monitor the inside of the energy storage container so that when a fire occurs, the main control system can be used to start the fire-fighting device and spray the fire extinguishing agent into the energy storage container to extinguish the fire.

[0037] However, it takes some time for the fire monitoring equipment to monitor and control, for the fire extinguishing agent to be sprayed into the energy storage container for fire extinguishing, for the fire extinguishing agent to reach the fire extinguishing point, and for a sufficient amount of fire extinguishing agent to accumulate at the fire extinguishing point. Therefore, in the early stage of the fire, it is impossible to carry out precise fire extinguishing in a timely and effective manner, thus losing the best time to control the fire.

[0038] Therefore, in order to ensure the accuracy and timeliness of fire extinguishing, this embodiment provides a fire fighting system for an energy storage container, wherein the energy storage container includes a container body 100 and a plurality of battery pack assemblies 200, the battery pack assembly 200 includes a battery pack shell 202 and a plurality of battery cells disposed in the battery pack shell 202,

[0039] like Figures 1 to 4 As shown, the fire protection system for the energy storage container includes a passive fire protection component 1 consisting of a pressure vessel 11, a fire protection pipe 12 and a fire detection tube 13. The pressure vessel 11 is arranged in the container body 100 and stores a fire extinguishing agent therein. The fire protection pipe 12 is arranged in the container body 100 and is connected to the pressure vessel 11. The fire detection tube 13 is connected to the fire protection pipe 12. The fire detection tube 13 is also provided with fire trigger points 131 corresponding to multiple battery pack assemblies 200 one by one. A weak structure 201 is provided on the battery pack shell 202. The fire trigger point 131 is arranged corresponding to the weak structure 201.

[0040] The pressure vessel 11 storing the fire extinguishing agent inside and the fire detection tube 13 are connected through the fire-fighting pipe 12, so that the fire detection tube 13 is filled with pressurized fire extinguishing agent, and a plurality of fire triggering points 131 corresponding to the battery pack assembly 200 are arranged on the fire detection tube 13, and the fire triggering points 131 are arranged corresponding to the weak structures 201 on the battery pack shell 202, so that when a fire occurs in any weak structure 201, its high temperature will destroy the corresponding fire triggering point 131 on the fire detection tube 13, so that the pressurized fire extinguishing agent in the fire detection tube 13 is sprayed out, directly acting on the weak structure 201 where the fire occurs, and a fire extinguishing operation is performed, so that the fire can be controlled in a timely and accurate manner at the early stage of the fire, and the spread of the fire is avoided.

[0041] In this embodiment, if Figure 4As shown, in order to make the fire detection tube 13 closer to the weak structure 201 on the battery pack assembly 200, the fire trigger points 131 on the fire detection tube 13 are extended in the direction close to the weak structure 201, thereby forming a tubular fire trigger point 131. In addition, the fire extinguishing agent filled in the pressure vessel 11 is heptafluoropropane fire extinguishing agent, which is a clean gas chemical fire extinguishing agent that mainly uses chemical fire extinguishing and also has physical fire extinguishing effects. It can reliably extinguish Class B and C fires and electrical fires at a lower fire extinguishing concentration. In addition, heptafluoropropane does not contain chlorine or bromine, and will not damage the atmospheric ozone layer, so it is more environmentally friendly.

[0042] Alternatively, if Figure 2 As shown, the energy storage container further includes a first partition 300, which is disposed in the container body 100 and divides the internal space of the container body 100 into a fire fighting chamber 101 and a placement chamber, wherein the plurality of battery pack assemblies 200 are disposed in the placement chamber, and the pressure vessel 11 is disposed in the fire fighting chamber 101. By disposing the first partition 300 in the energy storage container body 100, the space inside the container body 100 is divided into the fire fighting chamber 101 and the placement chamber, thereby realizing zoning management and avoiding the fire fighting equipment and the battery pack assembly 200 being concentrated in one room, resulting in management confusion.

[0043] In this embodiment, since the pressure container 11 storing the fire extinguishing agent is located in the fire fighting chamber 101 and the fire detection tube 13 is arranged in the energy storage chamber 102, a through hole is also opened on the first partition 300 to facilitate the fire fighting pipe 12 to pass through the first partition 300 to realize the connection between the pressure container 11 and the fire detection tube 13.

[0044] Alternatively, if Figure 1 , Figure 3 As shown, the passive fire protection assembly 1 further includes a mounting bracket 14, which is arranged in the placement chamber, and the fire detection tube 13 is laid on the mounting bracket 14. By arranging the mounting bracket 14 in the placement chamber, it is convenient to lay the fire detection tube 13 in the placement chamber, and by arranging the mounting bracket 14, the placement chamber can also be provided with an auxiliary support function, thereby improving the structural stability of the placement chamber.

[0045] In this embodiment, the mounting bracket 14 is connected to the placement chamber in a detachable manner, so as to facilitate timely replacement of the fire detection tube 13, for example, the mounting bracket 14 is connected to the container body 100 by bolt connection.

[0046] Alternatively, if Figure 1As shown, the passive fire protection assembly 1 further includes a pressure relief valve 15, which is provided on the container body 100 and is used to release the pressure in the chamber. By providing the pressure relief valve 15 on the container body 100, when a fire occurs in the container body 100, the internal pressure can be released in time through the pressure relief valve 15 to avoid explosion caused by excessive pressure.

[0047] In this embodiment, a plurality of pressure relief valves 15 can be provided in the passive fire protection assembly 1 according to requirements, and the pressure relief valves 15 can be provided at different positions on the container body 100, thereby accelerating the pressure relief speed and improving safety.

[0048] Furthermore, if Figure 1 , Figure 2 As shown, a first installation window 104 communicating with the placement chamber is provided on the container body 100, and the pressure relief valve 15 is provided in the first installation window 104. By providing the first installation window 104 on the container body 100, it is convenient to embed the pressure relief valve 15 on the container body 100 without protruding from the container body 100, so that the pressure relief valve 15 is protected by the container body 100 to prevent the pressure relief valve 15 from being damaged due to accidental bumps during transportation.

[0049] Alternatively, if Figure 1 As shown, the fire protection system for the energy storage container also includes an active fire protection component, which is arranged on the container body 100. The active fire protection component is used to transport fire protection water into the placement chamber so that the fire protection water immerses the battery pack assembly 200 in the placement chamber. By setting up the active fire protection component, it cooperates with the passive fire protection component 1 to achieve dual fire protection. On the one hand, when the passive fire protection component 1 cannot extinguish the fire due to a large fire, the active fire protection component directly immerses the battery pack assembly 200 with fire protection water to eliminate the fire. On the other hand, the dual fire protection measures can also speed up the fire extinguishing operation.

[0050] The active fire fighting component can input fire fighting water into the placement chamber by spraying operation, or directly input fire fighting water into the placement chamber by introducing a fire fighting water pipe. In this embodiment, the method of directly introducing a fire fighting water pipe into the placement chamber is adopted.

[0051] Specifically, Figure 1As shown, the active firefighting assembly includes a firefighting pipe joint 2 and a water storage container (not shown) provided on the container body 100. The water storage container stores firefighting water and is provided on the outside of the container body 100. The firefighting pipe joint 2 is provided on the container body 100 and is used to connect the placement chamber and the water storage container. By providing the firefighting pipe joint 2 on the container body 100, it is convenient to connect the firefighting water pipe connected to the water storage container. In this embodiment, the firefighting pipe joint 2 is a quick joint, which is closed when the firefighting water pipe is not connected, and is automatically connected after the firefighting water pipe is connected.

[0052] Alternatively, if Figure 1 , Figure 2 As shown, a second installation window 105 communicating with the placement chamber is provided on the container body 100, and the fire pipe joint 2 is provided in the second installation window 105. By providing the second installation window 105 on the container body 100, it is convenient to embed the fire pipe joint 2 on the container body 100 without protruding from the container body 100, so that the container body 100 is used to protect the fire pipe joint 2, and the fire pipe joint 2 is prevented from being damaged due to accidental bumps during transportation, resulting in the problem of being unable to connect with the fire hose, and delaying the fire extinguishing opportunity.

[0053] Alternatively, if Figure 1 , Figure 2 As shown, the energy storage container further includes a second partition 400, which is disposed in the placement chamber and divides the placement chamber into an energy storage chamber 102 and a buffer chamber 103, and a plurality of battery pack assemblies 200 are disposed in the energy storage chamber 102. By arranging the second partition 400 in the energy storage container, the placement chamber is divided into an energy storage chamber 102 and a buffer chamber 103. On the one hand, the space for storing the battery pack assembly 200 is reduced, so that when injecting fire water, the amount of water used during immersion can be reduced, the immersion time of fire water can be accelerated, and the fire extinguishing efficiency can be improved. Secondly, the buffer space at the partition can be used for buffering when the container body 100 is subjected to external force during transportation, thereby improving the protection of the internal battery pack assembly 200.

[0054] In this embodiment, an energy storage container is also provided, which includes the fire protection system for the energy storage container. The energy storage container uses the passive fire extinguishing device to timely and accurately extinguish the fire, thereby improving the safety of the energy storage container and the protection of the energy storage container.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fire fighting system for an energy storage container, the energy storage container comprising a container body (100) and a plurality of battery pack assemblies (200), the battery pack assembly (200) comprising a battery pack housing (202) and a plurality of battery cells disposed in the battery pack housing (202), characterized in that: The fire protection system for the energy storage container comprises a passive fire protection component (1), wherein the passive fire protection component (1) comprises: A pressure container (11), the pressure container (11) being arranged in the container body (100) and storing a fire extinguishing agent therein; a fire-fighting pipe (12), the fire-fighting pipe (12) being arranged in the container body (100) and being in communication with the pressure vessel (11); and A fire detection tube (13), the fire detection tube (13) being in communication with the fire fighting pipe (12), the fire detection tube (13) being further provided with fire trigger points (131) corresponding one-to-one to the plurality of battery pack assemblies (200), the battery pack housing (202) being provided with a weak structure (201), the fire trigger points (131) being arranged corresponding to the weak structure (201).

2. The fire fighting system for an energy storage container according to claim 1, characterized in that: The energy storage container further comprises a first partition (300), wherein the first partition (300) is arranged in the container body (100) and divides the internal space of the container body (100) into a fire fighting chamber (101) and a placement chamber, wherein the plurality of battery pack assemblies (200) are arranged in the placement chamber, and the pressure container (11) is arranged in the fire fighting chamber (101).

3. The fire fighting system for an energy storage container according to claim 2, characterized in that: The passive fire protection component (1) further comprises a mounting bracket (14), wherein the mounting bracket (14) is arranged in the placement chamber, and the fire detection tube (13) is laid on the mounting bracket (14).

4. The fire fighting system for an energy storage container according to claim 2, characterized in that: The passive fire protection assembly (1) further comprises a pressure relief valve (15), wherein the pressure relief valve (15) is arranged on the container body (100), and the pressure relief valve (15) is used to release the pressure in the placement chamber.

5. The fire fighting system for an energy storage container according to claim 4, characterized in that: The container body (100) is provided with a first installation window (104) communicating with the placement chamber, and the pressure relief valve (15) is arranged in the first installation window (104).

6. The fire fighting system for an energy storage container according to claim 2, characterized in that: The fire-fighting system for the energy storage container further comprises an active fire-fighting component, which is arranged on the container body (100) and is used to transport fire-fighting water into the placement chamber so that the fire-fighting water submerges the battery pack assembly (200) in the placement chamber.

7. The fire fighting system for an energy storage container according to claim 6, characterized in that: The active fire-fighting component comprises a fire-fighting pipe joint (2) and a water storage container arranged on the container body (100); the water storage container stores the fire-fighting water and is arranged on the outside of the container body (100); the fire-fighting pipe joint (2) is arranged on the container body (100) and is used to connect the placement chamber and the water storage container.

8. The fire fighting system for an energy storage container according to claim 7, characterized in that: The container body (100) is provided with a second installation window (105) communicating with the placement chamber, and the fire-fighting pipe joint (2) is arranged in the second installation window (105).

9. The fire fighting system for an energy storage container according to claim 2, characterized in that: The energy storage container further comprises a second partition (400), wherein the second partition (400) is arranged in the placement chamber and divides the placement chamber into an energy storage chamber (102) and a buffer chamber (103), and a plurality of the battery pack assemblies (200) are arranged in the energy storage chamber (102).

10. Energy storage container, characterized in that: The energy storage container comprises a fire protection system for an energy storage container as described in any one of claims 1-9.

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