CN110061162A - Energy-storage battery cluster with heat dissipation with fire-fighting function - Google Patents

Abstract

The invention provides an energy storage battery cluster with heat dissipation and fire protection functions. The energy storage battery cluster with heat dissipation and fire protection functions includes: a medium circulation pipeline and a plurality of energy storage battery cabinets; wherein, the energy storage battery cabinets are arranged side by side. , each energy storage battery cabinet includes: a cabinet body, a fire fighting pipeline and a plurality of battery boxes; wherein, the top of the cabinet body is provided with a first air inlet and an air outlet mechanism, and the fire fighting pipeline is penetrated in the cabinet body; each The fire-fighting pipelines of the energy storage battery cabinet are connected with the medium circulation pipeline, and each battery box is connected with the fire-fighting pipeline, and the fire-fighting pipeline directly injects fire extinguishing agent and re-ignition inhibitor into each battery box. In the present invention, when the battery is burned, firstly inject the fire extinguishing agent directly into each battery box through the medium circulation pipeline and fire fighting pipeline to extinguish the open fire in the battery box, and then directly inject the fire extinguishing agent into each battery box through the medium circulation pipeline and the fire fighting pipeline. Inject a re-ignition inhibitor and immerse each battery box to prevent the battery from re-igniting.

Description

Energy storage battery cluster with heat dissipation and fire protection functions

technical field

The invention relates to the technical field of energy storage batteries, in particular to an energy storage battery cluster with heat dissipation and fire protection functions.

Background technique

Lithium-ion batteries have the advantages of large specific capacity, high operating voltage, long cycle life, small size, and light weight, and can be used in many scenarios. In electric vehicles and energy storage systems, the power battery of the power supply is required to have a large capacity and voltage. According to the requirements of the power source, multiple battery boxes are combined to form an energy storage power station. When a fire occurs, the fire extinguishing agent can effectively extinguish the fire, but due to its own characteristics, the lithium battery has a greater possibility of re-ignition, and the use environment of the energy storage system is mostly a semi-open environment. will gradually decrease. When the lithium battery reignites, the concentration of the fire extinguishing agent may not reach the expected concentration, causing the battery to reignite and the fire to expand.

SUMMARY OF THE INVENTION

In view of this, the present invention proposes an energy storage battery cluster with heat dissipation and fire protection functions, aiming at solving the problem that the current battery box is easy to reignite.

The invention provides an energy storage battery cluster with heat dissipation and fire protection functions. The energy storage battery cluster with heat dissipation and fire protection functions includes: a medium circulation pipeline and a plurality of energy storage battery cabinets; wherein, the energy storage battery cabinets are arranged side by side. , each energy storage battery cabinet includes: a cabinet body, a fire fighting pipeline and a plurality of battery boxes; wherein, the top of the cabinet body is provided with a first air inlet and an air outlet mechanism, and the fire fighting pipeline is penetrated in the cabinet body; each The fire-fighting pipelines of the energy storage battery cabinet are all connected with the medium circulation pipeline, and each battery box is connected with the fire-fighting pipeline, and the fire-fighting pipeline directly injects fire extinguishing agent and re-ignition inhibitor into each battery box.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the cabinet body is provided with a partition forming an air inlet air duct and an air outlet air duct, and the partition plate has a preset distance from the bottom of the cabinet body; It is arranged along the air inlet air duct, and each battery box is located in the air outlet air duct.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, each battery box is arranged in a row in the cabinet body, and a serpentine air duct is formed between each battery box.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the side of each battery box is provided with a first air outlet, the bottom of each battery box is provided with a second air inlet, any two adjacent In the battery box, the airflow enters from the second air inlet of the battery box located below and flows out from the first air outlet of the battery box located below, and then enters from the second air inlet of the battery box located above and flows from the battery box located above. The first air outlet of the box flows out to form a serpentine air duct.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the first air outlets of each battery box in the same row are located on the same side; or the first air outlets of each battery box in the same row are located on different sides; or the same row. The first air outlets of each battery box are located on opposite sides of the battery box.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, there are multiple second air inlets, and each second air inlet is opened in sequence along the arrangement direction of the batteries in the battery box.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, at least two rows of batteries are accommodated in the battery box, each row of batteries has a gap, and the second air inlet corresponds to the gap.

Further, the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions also includes: a plurality of support plates, and a support plate is arranged between any two adjacent battery boxes to support the battery boxes, and each support plate The boards are all provided with ventilation openings, and the ventilation openings correspond to the second air inlets opened by the battery box located above them.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the air outlet mechanism includes: a second air outlet opened on the top of the cabinet body; a fan, and the fan is arranged at the second air outlet.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the air outlet mechanism further includes: an air guide pipe, which is arranged on the fan, and the air guide pipe is bent to a position away from the first air inlet.

Further, in the above-mentioned energy storage battery cluster with heat dissipation and fire protection functions, the partition plate is extended to the outside of the cabinet body, and separates the first air inlet from the air outlet mechanism.

In the present invention, under the action of the air outlet mechanism, the airflow enters the cabinet body from the first air inlet, flows through each battery box from bottom to top, and finally flows out from the air outlet mechanism, so as to cool the battery and maintain the battery life. Safe operation; at the same time, when the battery is thermally out of control, firstly inject fire extinguishing agent into each battery box directly through the elimination medium circulation pipeline and anti-pipeline, so as to extinguish the open fire in the battery box; and then pass the medium circulation pipeline and fire protection pipe The re-ignition inhibitor is directly injected into each battery box, and each battery box is immersed, so that the battery cannot be re-ignited; at the same time, a serpentine air duct is formed between the battery boxes. The battery box below starts to flow through each battery box in a serpentine flow path, and finally flows out from the air outlet, so as to dissipate heat to the greatest extent. The arrangement of the second air inlet, the first air outlet and the air vent together form a serpentine air duct, which can better dissipate heat to the battery box; in addition, the battery box is sealed with the cabinet body, which can store the re-ignition inhibitor. Thereby effectively preventing the re-ignition of the battery.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a front view of a high-safety energy storage battery cluster provided by an embodiment of the present invention;

2 is a top view of a high-safety energy storage battery cluster provided by an embodiment of the present invention;

3 is a schematic structural diagram of a battery cabinet in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of a battery cabinet in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

5 is a schematic diagram of the internal structure of a battery cabinet in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

6 is a cross-sectional view of a battery cabinet in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

7 is a partial enlarged view of the interior of a battery cabinet in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

8 is a schematic diagram of the airflow in the battery box in the energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

9 is a schematic structural diagram of a battery box in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention;

10 is a schematic diagram of an internal structure of a battery box in an energy storage battery cluster with heat dissipation and fire protection functions provided by an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Referring to FIG. 1 to FIG. 5 , the figures show the preferred structure of the energy storage battery cluster with heat dissipation and fire protection functions provided by this embodiment. As shown in the figure, the energy storage battery cluster with heat dissipation and fire protection functions includes: medium circulation 8 and a plurality of energy storage battery cabinets 9, and the plurality of energy storage battery cabinets 9 are arranged in parallel. Each energy storage battery cabinet 9 includes a cabinet body 1 , a fire fighting pipeline 2 and a plurality of battery boxes 3 . The top of the cabinet body 1 is provided with a first air inlet 11 and an air outlet mechanism 12 , and both of the first air inlet 11 and the air outlet mechanism 12 may be multiple. The cabinet body 1 is provided with a partition 4, the top of the partition 4 is in contact with the top of the cabinet body 1, and the bottom end of the partition 4 has a preset distance from the bottom of the cabinet body 1. In specific implementation, the preset distance can be 100mm-300mm. The partition plate 4 divides the internal space of the cabinet body 1 into two parts, the space on one side of the partition plate 4 is the air inlet air duct, and the space on the other side is the air outlet air duct. The battery boxes 3 are stacked in a row in the cabinet body 1 , and the battery boxes 3 may be in multiple rows. The battery boxes 3 located at the bottom of the battery boxes 3 in each row have a certain distance from the bottom of the cabinet body 1 . All the battery boxes 3 are located on the same side of the separator 4 . In a specific implementation, all the battery boxes 3 are located in the air outlet duct, that is, all the battery boxes 3 are located below the air outlet mechanism 12 . The fire fighting pipeline 2 is penetrated in the cabinet body 1 and arranged along the air intake duct. The fire fighting pipeline 2 of each energy storage battery cabinet 9 is connected with the medium circulation pipeline 8, and each battery box 3 is connected with an injection pipe. 33. Each battery box 3 is communicated with the fire fighting pipeline 2 through its respective injection pipe 33, and the fire extinguishing agent and the re-ignition inhibitor can be directly fed into each battery box 3 through the medium circulation pipeline 8 and the fire fighting pipeline 2 to extinguish the fire. and re-ignition inhibitors. Each battery box 3 is hermetically connected to the cabinet body 1 , so as to better store the re-ignition inhibitor and effectively prevent the re-ignition of the battery 5 . In specific implementation, there may be two fire-fighting pipelines 2 for injecting fire extinguishing agent and re-ignition inhibitor into the cabinet body 1 respectively, so that the injection of fire-extinguishing agent and re-ignition inhibitor can be controlled separately.

Under the action of the air outlet mechanism 12, the airflow enters the air inlet air duct of the cabinet body 1 from the first air inlet 11, and enters the air outlet air duct from the space between the bottom end of the partition plate 4 and the bottom of the cabinet body 1, and exits from the air outlet air duct. It flows through each battery box 3 from bottom to top, and finally flows out from the air outlet mechanism 12, thereby cooling the battery 5 to maintain the safe operation of the battery 5; The fire-fighting pipeline 2 directly injects fire extinguishing agent into each battery box 3, so as to extinguish the open fire in the battery box 3; and then directly injects the re-ignition inhibitor into each battery box 3 through the medium circulation pipeline 8 and the fire-fighting pipeline 2, And immerse each battery box 3, so that the battery 5 cannot be re-ignited, and the injection time interval of fire extinguishing agent and re-ignition inhibitor is 10-300 seconds; The airflow flowing through the air inlet 11 and the air outlet mechanism 12 in the cabinet body 1 will also give certain flow assistance and guidance to the fire extinguishing agent and the re-ignition inhibitor, thereby speeding up the process of extinguishing fire and suppressing re-ignition.

In the above embodiment, a serpentine air duct is formed between the battery boxes 3. After the airflow enters the air outlet duct, it starts from the battery box 3 located at the bottom and flows through each battery box 3 in a serpentine flow path in turn, and finally It flows out from the air outlet mechanism 12 , so as to dissipate heat from the battery box 3 to the greatest extent. 6 and 7, each battery box 3 is provided with a first air outlet 31 on the side, and a second air inlet 32 is provided on the bottom of each battery box 3. Any adjacent two In the battery box 3, the airflow enters from the second air inlet 32 of the battery box 3 located below and flows out from the first air outlet 31 of the battery box 3 located below, and then from the second air inlet of the battery box 3 located above. 32 enters and flows out from the first air outlet 31 of the battery box 3 located above, thereby forming a serpentine air duct. The first air outlet 31 of each battery box 3 can be one, and the first air outlet 31 can be opened on the side of the same side of each battery box 3, or can be opened on the side of each battery box 3 on different sides, thus forming A serpentine air duct is formed, or, referring to FIG. 9 , the opposite sides of each battery box 3 are provided with first air outlets 31 , so that a serpentine air duct is formed on both sides of the entire row of batteries 5 . Specifically, referring to FIG. 8 , the battery box 3 accommodates multiple rows of batteries 5 , and the first air outlet 31 is opened along the arrangement direction of a row of batteries 5 , and the length is slightly less than that of a row of batteries 5 .

Referring to FIG. 10 , in the above embodiment, there are a plurality of second air inlets 32 , and each second air inlet 32 is opened in sequence along the arrangement direction of a row of batteries 5 . In specific implementation, the second air inlets 32 are waist-shaped holes. The battery box 3 accommodates at least two rows of batteries 5 , and there is a gap 6 between two adjacent rows of batteries 5 . The second air inlet 32 is located at the bottom of the battery box 3 and corresponds to the gap 6 to facilitate airflow into the battery box 3 Inside.

6 and 7 again, it also includes: a plurality of support plates 7, each support plate 7 is connected to the inner wall of the cabinet body 1, and a support plate 7 is provided between any two adjacent battery boxes 3, The support plate 7 can play a certain supporting role for the battery box 3 located above it. Each support plate 7 is provided with a vent 71 , which corresponds to the second air inlet 32 opened on the battery box 3 above the vent 71 , so as to ensure that the air flow enters the battery box 3 smoothly. In a specific implementation, the air vents 71 and the second air inlets 32 may correspond one-to-one, or one air vent 71 may correspond to several second air inlets 32 . It should be noted that the arrangement of the second air inlet 32 , the first air outlet 31 and the ventilation port 71 together form a serpentine air duct.

3 and 6 again, the air outlet mechanism 12 includes: a second air outlet (not shown in the figure) and a fan 121, wherein the second air outlet is opened on the top of the cabinet body 1, and the fan 121 is arranged on the second air outlet. At the air outlet, to guide the air flow in the cabinet body 1 to be discharged. During specific implementation, the fan 121 is located outside the cabinet body 1 . The air outlet mechanism 12 also includes: an air guide duct 122, which is arranged on the fan 121, and the air guide duct 122 is bent away from the position of the first air inlet 11, so as to guide the discharged air with a higher temperature to the fan 121. The direction away from the first air inlet 11 ensures that the temperature of the airflow flowing in from the first air inlet 11 is lower, so as to better cool the battery box 3 .

In the above embodiment, the top end of the partition plate 4 is extended to the outside of the cabinet body 1, and the first air inlet 11 and the air outlet mechanism 12 are separated, so as to further prevent the discharged high-temperature airflow from affecting the airflow near the first air inlet 11. The cooling effect of the airflow on the battery box 3 is guaranteed.

To sum up, in this embodiment, under the action of the air outlet mechanism 12 , the airflow enters the cabinet body 1 from the first air inlet 11 , flows through each battery box 3 from bottom to top, and finally flows out from the air outlet mechanism 12 , thereby The battery 5 is cooled to maintain the safe operation of the battery 5; at the same time, when the battery 5 is thermally out of control, the fire extinguishing agent is directly injected into each battery box 3 through the medium circulation pipeline 8 and the fire fighting pipeline 2, so that the battery box is The open fire in 3 is extinguished; then the re-ignition inhibitor is directly injected into each battery box 3 through the medium circulation pipeline 8 and the fire-fighting pipeline 2, and each battery box 3 is immersed, so that the battery 5 cannot be re-ignited; at the same time, each battery A serpentine air duct is formed between the boxes 3. After the airflow enters the air outlet duct, it starts from the battery box 3 located at the bottom, flows through each battery box 3 in a serpentine flow path, and finally flows out from the air outlet mechanism 12. , so as to dissipate heat to the battery box 3 to the greatest extent. The arrangement of the second air inlet 32 , the first air outlet 31 and the ventilation port 71 together form a serpentine air duct, which can better dissipate heat to the battery box 5 ; The re-ignition inhibitor is stored, thereby effectively preventing the re-ignition of the battery 5 .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (11)

1. An energy storage battery cluster with heat dissipation and fire fighting functions, characterized in that it comprises: a medium circulation pipeline (8) and a plurality of energy storage battery cabinets (9); wherein, Each of the energy storage battery cabinets (9) is arranged side by side, and each of the energy storage battery cabinets (9) includes: a cabinet body (1), a fire fighting pipeline (2) and a plurality of battery boxes (3); The top of the cabinet body (1) is provided with a first air inlet (11) and an air outlet mechanism (12), and the fire fighting pipeline (2) is penetrated in the cabinet body (1); The fire fighting pipeline (2) of each of the energy storage battery cabinets (9) is connected to the medium circulation pipeline (8), and each of the battery boxes (3) is connected to the fire fighting pipeline (2) The fire-fighting pipeline (2) directly injects fire-extinguishing agent and re-ignition inhibitor into each of the battery boxes (3). 2. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 1, characterized in that, The cabinet body (1) is provided with a partition plate (4) forming an air inlet air channel and an air outlet air channel, and the partition plate (4) has a preset distance from the bottom of the cabinet body (1); The fire fighting pipeline (2) is arranged along the air inlet air duct, and each of the battery boxes (3) is located in the air outlet air duct. 3. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 2, characterized in that, The battery boxes (3) are arranged in a row in the cabinet body (1), and a serpentine air duct is formed between the battery boxes (3). 4. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 3, characterized in that, A first air outlet (31) is opened on the side of each of the battery boxes (3), and a second air inlet (32) is opened at the bottom of each of the battery boxes (3). In the battery box (3), the airflow enters from the second air inlet (32) of the battery box (3) located below and from the first air outlet (31) of the battery box (3) located below outflow, then enter from the second air inlet (32) of the battery box (3) located above and flow out from the first air outlet (31) of the battery box (3) located above to form the snake shaped air duct. 5. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 4, characterized in that, The first air outlets (31) of the battery boxes (3) in the same row are located on the same side; or The first air outlets (31) of the battery boxes (3) in the same row are located on different sides; or The first air outlets (31) of the battery boxes (3) in the same row are located on opposite sides of the battery boxes (3). 6. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 4, characterized in that, There are multiple second air inlets (32), and each of the second air inlets (32) is opened in sequence along the arrangement direction of the batteries (5) in the battery box (3). 7. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 4 or 6, characterized in that, At least two rows of batteries (5) are accommodated in the battery box (3), a gap (6) is provided between each row of batteries (5), and the second air inlet (32) corresponds to the gap (6) . 8. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 4, characterized in that, further comprising: A plurality of support plates (7), the support plates (7) are provided between any two adjacent battery boxes (3) to support the battery boxes (3), and each The support plates (7) are all provided with ventilation openings (71), and the ventilation openings (71) correspond to the second air inlets (32) opened by the battery box (3) located above them. 9. The energy storage battery cluster with heat dissipation and fire protection functions according to any one of claims 1-5, wherein the air outlet mechanism (12) comprises: a second air outlet opened on the top of the cabinet body (1); A fan (121) is provided at the second air outlet. 10. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 9, wherein the air outlet mechanism (12) further comprises: An air guide pipe (122), the air guide pipe (122) is arranged on the fan (121), and the air guide pipe (122) is bent to a position away from the first air inlet (11) . 11. The energy storage battery cluster with heat dissipation and fire protection functions according to claim 2, wherein, The partition plate (4) is extended to the outside of the cabinet body (1), and separates the first air inlet (11) from the air outlet mechanism (12).