Fire sprinkler device for energy storage system

Abstract

The utility model relates to a fire-fighting spraying device, especially to a fire-fighting spraying device of energy storage system, the fire-fighting spraying device includes at least one spraying pipe, the energy storage system includes battery cabin and multilayer battery package along the height direction of battery cabin is arranged, the spraying pipe is a hard pipe along the height direction of battery cabin is arranged, the spraying pipe corresponds to each layer battery package and is set up with a water outlet cut -out, the fire-fighting spraying device provided by the utility model corresponds to each layer battery package and is set up with the water outlet cut -out, can cover to each layer battery package when spraying, including the battery package in the lower part of battery cabin. Meanwhile, the fire-fighting spraying device simple structure, low in cost.

Description

Technical Field

[0001] This utility model relates to a fire sprinkler system, and more particularly to a fire sprinkler system for an energy storage system. Background Technology

[0002] The charge-discharge cycle life and safety of lithium-ion batteries are greatly affected by temperature. When the cell temperature is too high or the temperature difference is large, the cell cycle life will decrease significantly, affecting the service life of energy storage products. In severe cases, it can lead to thermal runaway of the cell, producing a large amount of flammable gas. When the content of flammable gas reaches a certain concentration, it is very easy to explode when it comes into contact with a small spark, causing significant loss of life and property.

[0003] Existing fire suppression systems for energy storage systems typically spray or flood the battery compartment from the top via downspray, sidespray, or water inlets. However, in the event of a fire in the lower or middle battery packs, downspray or sidespray sprays are insufficient because the battery packs are stacked, making it difficult for the top spray to reach them. Flooding via water inlets is problematic because battery compartments usually have floor drains and bottom air inlets; the flooding water will leak out through these channels, increasing the time it takes to reach the thermally runaway battery packs, or even preventing them from reaching them at all. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to make the fire-fighting device of the energy storage system more easily cover the battery pack in the lower part of the battery compartment.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A fire sprinkler system for an energy storage system includes at least one sprinkler pipe. The energy storage system includes a battery compartment and multiple battery packs arranged along the height direction of the battery compartment. The sprinkler pipe is a rigid pipe arranged along the height direction of the battery compartment, and a water outlet is provided on the sprinkler pipe corresponding to each battery pack.

[0006] In some embodiments, the direction along the height of the battery compartment is vertical, and the direction perpendicular to the height of the battery compartment is horizontal; the water outlet cut is a "+" shaped structure, including a horizontal cut and a vertical cut that are arranged in a cross pattern, the horizontal cut being a strip-shaped hole along the horizontal direction, and the vertical cut being a strip-shaped hole along the vertical direction.

[0007] In some embodiments, the lateral dimension of the battery pack is greater than the longitudinal dimension of the battery pack, and the lateral dimension of the lateral cut is greater than the longitudinal dimension of the vertical cut.

[0008] In some embodiments, the lateral dimension of the battery pack is smaller than the longitudinal dimension of the battery pack, and the lateral dimension of the lateral cut is smaller than the longitudinal dimension of the vertical cut.

[0009] In some embodiments, the water outlet is a circular hole.

[0010] In some embodiments, the water outlet is aligned with the gap between two adjacent battery pack layers.

[0011] In some embodiments, the spray pipe has a water inlet end and a water outlet end, the water outlet end is provided with a sealing cap, and the water inlet end is provided with a connector for connecting a water pipe that supplies water to the spray pipe.

[0012] In some embodiments, the end is closer to the top of the battery compartment than the water inlet end.

[0013] In some embodiments, the water inlet is closer to the top of the battery compartment than the end.

[0014] In some embodiments, the battery packs are arranged at equal intervals along the height direction of the battery compartment, and the water outlets are arranged at equal intervals along the spray pipes.

[0015] The beneficial effects of this utility model are as follows: The fire sprinkler system provided by this utility model has water outlets corresponding to each layer of battery packs, so that the sprinkler system can cover each layer of battery packs, including the battery packs in the lower part of the battery compartment. At the same time, the fire sprinkler system has a simple structure and low cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the spray pipe in Embodiment 1 of this utility model; Figure 2 for Figure 1 Enlarged view of region A; Figure 3 for Figure 1 A schematic diagram of the spray pipe from another perspective; Figure 4 for Figure 3 Enlarged view of region B; Figure 5 This is a schematic diagram of the structure of the spray pipe in Embodiment 2 of this utility model; Figure 6 for Figure 5 Enlarged view of region C; Figure 7 for Figure 5 A schematic diagram of the spray pipe from another perspective; Figure 8 for Figure 7 Enlarged view of region D; Figure 9 for Figure 1 The diagram shows a ground-mounted installation of the sprinkler pipe. Figure 10 for Figure 1 The diagram shows a ceiling-mounted installation of the sprinkler pipe. Label Explanation: 1. Spray pipe; 2. Sealing cap; 3. Connector; 4. Water pipe; 5. Battery pack; 11. Water outlet cut. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] Existing fire sprinkler systems typically spray water from the top of the battery compartment. However, since the battery packs are stacked, existing fire sprinkler systems have difficulty covering the middle and lower battery packs when a fire occurs.

[0019] This utility model provides a fire sprinkler device for an energy storage system. The energy storage system includes a battery compartment and a multi-layer battery pack 5 arranged along the height direction of the battery compartment. Please refer to... Figure 1 The fire sprinkler device provided by this utility model includes at least one sprinkler pipe 1, which is a rigid pipe arranged along the height direction of the battery compartment. A water outlet cutout 11 is opened on the sprinkler pipe 1 corresponding to each layer of battery pack 5.

[0020] As can be seen from the above description, the beneficial effects of this utility model are as follows: The fire sprinkler system provided by this utility model has water outlets 11 for each layer of battery pack 5, so that the sprinkler can cover each layer of battery pack 5, including the battery pack 5 in the lower part of the battery compartment. At the same time, the fire sprinkler system has a simple structure, and the fire water is sprayed directly from the water outlets 11 without the need to install nozzles, which reduces the cost.

[0021] In some embodiments, the direction along the height of the battery compartment is vertical, and the direction perpendicular to the height of the battery compartment is horizontal; please refer to Figure 2 The water outlet 11 has a "+" shaped structure, including a horizontal cut and a vertical cut that are arranged in a cross pattern. The horizontal cut is a strip-shaped hole along the horizontal direction, and the vertical cut is a strip-shaped hole along the vertical direction.

[0022] In some embodiments, the lateral dimension of the battery pack 5 is larger than the longitudinal dimension of the battery pack 5. Please refer to... Figures 1 to 4 The horizontal dimension of a transverse cut is greater than the vertical dimension of a vertical cut.

[0023] In some embodiments, the lateral dimension of the battery pack 5 is smaller than the longitudinal dimension of the battery pack 5. Please refer to... Figures 5 to 8 The horizontal dimension of a transverse cut is smaller than the vertical dimension of a vertical cut.

[0024] As can be seen from the above description, the advantage of the "+" shaped structure of the water outlet 11 is that the size ratio of the horizontal and vertical cuts of the water outlet 11 can be designed according to the ratio of the horizontal and vertical dimensions of the battery pack 5, so that the fire water sprayed from the water outlet 11 can better cover the entire battery pack 5.

[0025] In some embodiments, the water outlet 11 is a circular hole.

[0026] As can be seen from the above description, the advantage of having a round hole for the water outlet 11 is that it is easier to drill.

[0027] In some embodiments, please refer to Figure 9 The water outlet 11 is aligned with the gap between the two adjacent battery packs 5.

[0028] As can be seen from the above description, when the battery pack 5 is burning, the top reaches 180°C, the cover will melt, and the battery cells will be exposed. The water outlet 11 is aligned with the gap between the two adjacent battery packs 5, which is conducive to the fire water being sprayed smoothly onto the battery cells to quickly cool down and extinguish the fire.

[0029] In some embodiments, please refer to Figure 1 The spray pipe 1 has a water inlet end and a water outlet end. The water outlet end is provided with a sealing cap 2, and the water inlet end is provided with a connector 3. The connector 3 is used to connect a water pipe 4 that supplies water to the spray pipe 1.

[0030] As can be seen from the above description, since the end of the sprinkler pipe 1 is sealed by the sealing cap 2, when the water pipe 4 supplies water to the sprinkler pipe 1 from the joint 3, high pressure will be formed inside the sprinkler pipe 1, causing the fire water to be sprayed out quickly from the outlet cut 11.

[0031] In some embodiments, please refer to Figure 9 The end is closer to the top of the battery compartment than the water inlet end.

[0032] In some embodiments, please refer to Figure 10 The water inlet is closer to the top of the battery compartment than the end.

[0033] As can be seen from the above description, the installation method of the spray pipe 1 is flexible. As needed, the spray pipe 1 can be installed on the ground, with the end closer to the top of the battery compartment than the water inlet end; or it can be installed overhead, with the water inlet end closer to the top of the battery compartment than the end.

[0034] In some embodiments, the battery pack 5 is arranged at equal intervals along the height direction of the battery compartment, and the water outlet 11 is arranged at equal intervals along the spray pipe 1.

[0035] Please refer to Figures 1 to 4 , Figure 9 and Figure 10 Embodiment 1 of this utility model is as follows: A fire sprinkler system for an energy storage system includes at least one sprinkler pipe 1. Please refer to [reference needed]. Figure 1 The spray pipe 1 is a rigid pipe installed along the height of the battery compartment. Each layer of battery pack 5 has a water outlet cutout 11 on the spray pipe 1. The spray pipe 1 has a water inlet end and a water outlet end. The water outlet end is provided with a sealing cap 2, and the water inlet end is provided with a connector 3. The connector 3 is used to connect a water pipe 4 that supplies water to the spray pipe 1.

[0036] The vertical direction is along the height of the battery compartment, and the horizontal direction is perpendicular to the height of the battery compartment; please refer to... Figure 2 The water outlet 11 has a "+" shaped structure, including intersecting horizontal and vertical cuts. The horizontal cut is a strip-shaped hole along the horizontal direction, and the vertical cut is a strip-shaped hole along the vertical direction. The horizontal dimension of the horizontal cut is larger than the vertical dimension of the vertical cut, which is suitable for situations where the horizontal dimension of the battery pack 5 is larger than the vertical dimension of the battery pack 5.

[0037] Please refer to Figure 9 or Figure 10 The water outlet slit 11 is aligned with the gap between two adjacent battery packs 5. The water outlet slits 11 are evenly spaced along the spray pipe 1, suitable for situations where the battery packs 5 are evenly spaced along the height of the battery compartment. Please refer to... Figure 9 Spray pipe 1 can be installed on the ground, with its end closer to the top of the battery compartment than the water inlet end; please refer to... Figure 10 Spray pipe 1 can also be installed in a top-mounted manner, with the water inlet end closer to the top of the battery compartment than the end end.

[0038] The working process of this fire sprinkler system is as follows: When the battery cell experiences thermal runaway, the high temperature of the cell melts the top cover of the battery pack 5. The smoke and heat sensors detect the fire signal and trigger the fire sprinkler system to start, injecting water into each sprinkler pipe 1. The fire water is sprayed onto each battery pack 5 through each water outlet 11. All water pipes 4 can be connected to a main pipe, from which water is supplied to each sprinkler pipe 1 via the main pipe and each water pipe 4.

[0039] Please refer to Figures 5 to 8 Embodiment two of this utility model is as follows: A fire sprinkler system for an energy storage system, please refer to Figure 6 and Figure 8 The difference between this fire sprinkler device and the fire sprinkler device in Embodiment 1 is the shape of the water outlet cut 11. In this embodiment, the horizontal dimension of the horizontal cut is smaller than the vertical dimension of the vertical cut, which is suitable for situations where the horizontal dimension of the battery pack 5 is smaller than the vertical dimension of the battery pack 5.

[0040] In summary, the fire sprinkler system provided by this utility model has a simple structure, low cost, and flexible installation. The sprinkler pipe 1 sprays water to each layer of battery pack 5 simultaneously, which can not only quickly cover the middle and lower burning battery packs 5, but also cool down each layer of battery packs 5 together, which is conducive to preventing the spread of fire.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fire sprinkler system for an energy storage system, characterized in that: The energy storage system includes at least one spray pipe and includes a battery compartment and a multi-layer battery pack arranged along the height direction of the battery compartment. The spray pipe is a rigid pipe arranged along the height direction of the battery compartment, and a water outlet is opened on the spray pipe corresponding to each layer of the battery pack.

2. The fire sprinkler system for an energy storage system as described in claim 1, characterized in that: The direction along the height of the battery compartment is vertical, and the direction perpendicular to the height of the battery compartment is horizontal; the water outlet has a "+" shaped structure, including horizontal and vertical cuts that are intersected. The horizontal cut is a strip-shaped hole along the horizontal direction, and the vertical cut is a strip-shaped hole along the vertical direction.

3. The fire sprinkler system for an energy storage system as described in claim 2, characterized in that: The lateral dimension of the battery pack is greater than the longitudinal dimension of the battery pack, and the lateral dimension of the lateral cut is greater than the longitudinal dimension of the vertical cut.

4. The fire sprinkler system for an energy storage system as described in claim 2, characterized in that: The lateral dimension of the battery pack is smaller than the longitudinal dimension of the battery pack, and the lateral dimension of the lateral cut is smaller than the longitudinal dimension of the vertical cut.

5. The fire sprinkler system for an energy storage system as described in claim 1, characterized in that: The water outlet is a round hole.

6. The fire sprinkler system for an energy storage system as described in claim 1, characterized in that: The water outlet cut is aligned with the gap between two adjacent battery pack layers.

7. The fire sprinkler system for an energy storage system as described in claim 1, characterized in that: The spray pipe has a water inlet end and a water outlet end. The water outlet end is provided with a sealing cap, and the water inlet end is provided with a connector for connecting a water pipe that supplies water to the spray pipe.

8. The fire sprinkler system for an energy storage system as described in claim 7, characterized in that: The end is closer to the top of the battery compartment than the water inlet end.

9. The fire sprinkler system for an energy storage system as described in claim 7, characterized in that: The water inlet is closer to the top of the battery compartment than the end.

10. The fire sprinkler system for an energy storage system as described in claim 1, characterized in that: The battery packs are arranged at equal intervals along the height direction of the battery compartment, and the water outlets are arranged at equal intervals along the spray pipes.

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