Energy storage system and fire extinguishing system thereof

Abstract

The utility model provides an energy storage system and a fire fighting system thereof.The energy storage system comprises a plurality of energy storage battery bins subjected to waterproof treatment, and the fire fighting system comprises a fire fighting pipeline comprising a plurality of pipeline units; each pipeline unit in the plurality of pipeline units is arranged above at least one energy storage battery compartment along the periphery of the at least one energy storage battery compartment in the plurality of energy storage battery compartments, and each pipeline unit in the plurality of pipeline units is provided with a water outlet hole and a water outlet switch; and the fire-fighting control cabinet is electrically connected with each water outlet switch of the fire-fighting pipeline. When a fire disaster occurs, the water curtain partition isolation structure can be formed through water outlet of the pipeline units, construction is easy, daily ventilation and heat dissipation are facilitated, and the energy storage efficiency and safety can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of energy storage, and more specifically, to an energy storage system and a fire protection system thereof. Background Art

[0002] Energy storage fire protection systems are equipment and technologies specifically designed to protect energy storage systems from dangerous situations such as fire. Energy storage systems, such as battery energy storage systems, are becoming increasingly popular due to their role in regulating the power grid, supporting renewable energy, and providing emergency power. However, these systems may cause fires or other safety issues when overheated or damaged, so specialized fire protection systems are needed to provide protection.

[0003] Energy storage fire protection systems usually include detection systems, alarm and control systems, fire extinguishing systems, isolation systems and other elements. Among them, the isolation system is designed to isolate damaged battery modules to prevent the fire from spreading to adjacent units, which plays an important role in controlling the fire. However, existing isolation systems often use fireproof materials to build physical compartments, which is difficult to construct and is not conducive to daily ventilation and heat dissipation. Utility Model Content

[0004] Therefore, it is crucial to provide an isolation structure for the energy storage fire protection system that is easy to construct and conducive to daily ventilation and heat dissipation.

[0005] In a general aspect, there is provided a fire protection system for an energy storage system, the energy storage system comprising a plurality of energy storage battery compartments that have been waterproofed, the fire protection system comprising: a fire protection pipe comprising a plurality of pipe units, each of the plurality of pipe units being arranged above at least one of the plurality of energy storage battery compartments along the periphery of the at least one energy storage battery compartment, each of the plurality of pipe units being provided with a water outlet hole and a water outlet switch; and a fire protection control cabinet electrically connected to each of the water outlet switches of the fire protection pipe.

[0006] Optionally, the fire-fighting pipeline further includes a trunk pipeline, which is used to connect to a fire-fighting water system, and each of the multiple pipeline units is independently connected to the trunk pipeline.

[0007] Optionally, the water outlet hole includes: a first water outlet hole located at the bottom of the pipe unit; and / or a second water outlet hole located obliquely above the inner side of the pipe unit.

[0008] Optionally, the fire protection system further comprises a plurality of water collection tanks, the number of the plurality of water collection tanks being equal to the number of the plurality of pipe units and being arranged correspondingly, and each of the plurality of water collection tanks being located at the bottom of the corresponding pipe unit.

[0009] Optionally, the fire protection system further comprises a drainage channel, and the plurality of water collection tanks are connected to each other via the drainage channel.

[0010] Optionally, the energy storage system further includes a chamber, wherein the plurality of water collecting tanks and the drainage channel are located in the chamber, and the bottom wall heights of the plurality of water collecting tanks and the drainage channel gradually decrease from one end of the chamber to the other end of the chamber.

[0011] Optionally, a battery compartment base is provided in each of the multiple water collection pools, and the battery compartment base is used to place the energy storage battery compartment.

[0012] Optionally, the fire protection system further comprises a wastewater tank, which is connected to the plurality of water collection tanks.

[0013] Optionally, the fire protection system further includes a detection device, which is used to detect signs of fire in the energy storage battery compartment, and the detection device is communicatively connected to the fire protection control cabinet.

[0014] In another general aspect, there is provided an energy storage system, the energy storage system comprising: a plurality of energy storage battery compartments, the plurality of energy storage battery compartments being waterproofed; and a fire fighting system provided by any one of the above embodiments of the present disclosure.

[0015] The present disclosure proposes an energy storage system and a fire protection system thereof. By arranging a pipe unit of a fire protection pipe above the periphery of an energy storage battery compartment and providing a water outlet on the pipe unit, water outlets can be used to form a partitioned water curtain when a fire occurs, thereby isolating each energy storage battery compartment. In addition to the basic fire extinguishing function, the water curtain can also block and absorb most of the smoke and harmful gases generated by the fire in the energy storage battery compartment, and can reduce the air temperature, thereby reducing the impact of a fire in some energy storage battery compartments on other energy storage battery compartments. From a construction perspective, the difficulty of arranging fire protection pipes is relatively low and easy to construct; from a daily maintenance perspective, when water is not discharged on a daily basis, there is no large physical barrier between the energy storage battery compartments, which is conducive to ventilation and heat dissipation, and helps to improve energy storage efficiency and safety.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects and features of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram showing the structure of an energy storage system according to an embodiment of the present disclosure;

[0019] Figure 2is a side view showing an energy storage system according to an embodiment of the present disclosure;

[0020] Figure 3 is a top view showing an energy storage system according to an embodiment of the present disclosure.

[0021] Figures 1 to 3 Description of Figure Numbers:

[0022] 10: Fire protection system; 11: Fire protection pipeline; 111: Pipeline unit; 112: Trunk pipeline; 12: Fire control cabinet; 13: Water collection tank; 14: Drainage channel; 15: Wastewater tank;

[0023] 20: Energy storage battery compartment; 21: Battery compartment base;

[0024] 30: Warehouse. DETAILED DESCRIPTION

[0025] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear. For example, the order of operations described herein is only an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and simplicity, the description of features known in the art may be omitted.

[0026] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0028] Although terms such as "first", "second", and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer, or first portion referred to in the examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0029] In the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, or “coupled to” another element, the element may be directly “on”, “connected to”, or “coupled to” another element, or one or more other elements may be present therebetween. Conversely, when an element is described as being “directly on”, “directly connected to”, or “directly coupled to” another element, there may be no other elements present therebetween.

[0030] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprise", "include" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0031] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by a person of ordinary skill in the art to which the present disclosure belongs after understanding the present disclosure. Unless explicitly defined as such herein, terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal manner.

[0032] Furthermore, in the description of examples, when it is considered that a detailed description of a well-known related structure or function would cause vague interpretation of the present disclosure, such a detailed description will be omitted.

[0033] The following will be combined Figures 1 to 3 An energy storage system and fire protection system 10 provided in an embodiment of the present disclosure are introduced.

[0034] like Figure 1 As shown, an embodiment of one aspect of the present disclosure provides a fire protection system 10 for an energy storage system, the energy storage system includes a plurality of energy storage battery compartments 20 that have been waterproofed, and the plurality of energy storage battery compartments 20 are electrically connected. The fire protection system 10 includes a fire protection pipe 11 and a fire control cabinet 12, the fire protection pipe 11 includes a plurality of pipe units 111, each of the plurality of pipe units 111 is arranged above at least one energy storage battery compartment 20 along the periphery of at least one energy storage battery compartment 20 among the plurality of energy storage battery compartments 20, and each of the plurality of pipe units 111 is provided with a water outlet hole and a water outlet switch; the fire control cabinet 12 is electrically connected to each water outlet switch of the fire protection pipe 11.

[0035] According to the fire protection system 10 of the embodiment of the present disclosure, by arranging the pipe unit 111 of the fire protection pipe 11 above the periphery of the energy storage battery compartment 20 and providing a water outlet on the pipe unit 111, it is possible to form a partitioned water curtain by using the water outlet of the pipe unit 111 in the event of a fire, thereby isolating each energy storage battery compartment 20. In addition to the basic fire extinguishing function, the water curtain can also block and absorb most of the smoke and harmful gases generated by the fire in the energy storage battery compartment 20, and can reduce the air temperature, thereby reducing the impact of the fire in some energy storage battery compartments 20 on other energy storage battery compartments 20. From the perspective of construction, the difficulty of arranging the fire protection pipe 11 is relatively low and easy to construct; from the perspective of daily maintenance, when there is no water outlet on a daily basis, there is no large physical barrier between the energy storage battery compartments 20, which is conducive to ventilation and heat dissipation, and helps to improve energy storage efficiency and safety.

[0036] Specifically, by waterproofing the energy storage battery compartment 20, it is possible to reduce the damage to electrical equipment caused by water when an isolation water curtain is formed, thereby ensuring that the energy storage battery compartment 20 that does not subsequently catch fire can operate normally.

[0037] Each pipe unit 111 can surround at least one energy storage battery compartment 20 to achieve different degrees of battery compartment isolation. It should be understood that the fewer the number of energy storage battery compartments 20 surrounded by each pipe unit 111, the higher the degree of isolation. For a specific energy storage system, more pipe units 111 need to be arranged, so they can be arranged as needed. In addition, the present disclosure does not limit the layout of the pipe units 111 and the energy storage battery compartments 20.

[0038] Multiple water outlets can be arranged on each pipe unit 111 to form a water curtain, and the denser the water outlets are arranged, the better the isolation of the water curtain, and the greater the water consumption. When the density of the water outlets reaches a certain level, the benefit of continuing to increase the density of the arrangement will slow down, so the water outlets can be reasonably arranged as needed. In addition, multiple water outlets can be evenly spaced, or arranged at different densities in different directions according to isolation needs, and the present disclosure does not limit this. The aperture of the water outlet can be obtained through theoretical calculation and experiment, so as to form a water curtain as the goal.

[0039] The water outlet switch is electrically connected to the fire control cabinet 12 , and can allow water to enter the pipe unit 111 when it is turned on, and then spray out from the water outlet to form a water curtain. As an example, the water outlet switch can be set at the entrance of the pipe unit 111 .

[0040] Regarding the control of the water outlet switches by the fire control cabinet 12, as an example, the fire control cabinet 12 can be configured with a physical switch electrically connected to each water outlet switch so that the on-site manager of the energy storage system can trigger the water outlet switch; the fire control cabinet 12 can also be configured with a signal transceiver to receive remote input signals (input can be in the form of wired communication or wireless communication) to control the opening and closing of the corresponding water outlet switches.

[0041] For the embodiment in which the fire control cabinet 12 is equipped with a signal transceiver, the control end can be remotely configured, and the remote input signal can be a switch signal sent by the remote management personnel through the control end; the fire protection system 10 can also include a detection device, which is used to detect whether the energy storage battery compartment 20 has signs of thermal runaway (such as fire), and the detection device is connected to the fire control cabinet 12 in communication, so that when signs of thermal runaway are detected, a corresponding detection signal is output to the fire control cabinet 12, and the fire control cabinet 12 can send a control signal accordingly to control the water outlet switch of the pipeline unit 111 corresponding to the energy storage battery compartment 20 with signs of thermal runaway to open, spray water to form a water curtain, realize automatic isolation, help to improve the response speed, and improve fire safety. Specifically, the detection device includes a smoke detector, a temperature sensor and other monitoring equipment, which are respectively used to detect smoke, temperature anomalies and other signs of fire, so as to quickly identify possible or existing fires. As an example, a detection device can be set for each energy storage battery compartment 20, or several energy storage battery compartments 20 can be equipped with one, or one energy storage system can be equipped with one.

[0042] Alternatively, if Figure 1 As shown, the fire-fighting pipeline 11 also includes a trunk pipeline 112, which is used to connect to the fire-fighting water system to achieve water supply. Each of the multiple pipeline units 111 is independently connected to the trunk pipeline 112. By allowing multiple pipeline units 111 to share a trunk pipeline 112, it is possible to easily connect to the fire-fighting water system and simplify the layout of the fire-fighting pipeline 11. In addition, each pipeline unit 111 is independently connected to the trunk pipeline 112, which can reduce the mutual influence between different pipeline units 111 and ensure that each pipeline unit 111 can reliably discharge water. As an example, the water outlet switch of the pipeline unit 111 can be set at the connection between the corresponding pipeline unit 111 and the trunk pipeline 112.

[0043] Optionally, the water outlet includes a first water outlet and / or a second water outlet, the first water outlet is located at the bottom of the pipe unit 111, and the second water outlet is located at the inner side obliquely above the pipe unit 111. The first water outlet at the bottom can realize vertical downward spraying of water. For the second water outlet at the inner side obliquely above, since the pipe unit 111 is arranged along the periphery of the energy storage battery compartment 20, the inner side refers to the side facing the energy storage battery compartment 20, and water can be sprayed in a direction obliquely above the energy storage battery compartment 20 to suppress the upward flames. Both the first water outlet and the second water outlet help reduce the risk of fire spreading to other energy storage battery compartments 20. It should be understood that the arrangement of the water outlets of different pipe units 111 may be the same or different. Specifically for a single pipe unit 111, each pipe unit 111 can be arranged with multiple water outlets, and the specific arrangement of the water outlets can be designed as needed. For example, for the same pipe unit 111, only the first water outlet can be arranged, or only the second water outlet can be arranged, or the first water outlet and the second water outlet can be arranged at the same time. For the last case, the first water outlet and the second water outlet can be arranged not at the same pipe length position to ensure the structural strength of the pipe unit 111. The first water outlet and the second water outlet can also be arranged at the same pipe length position as needed, and the present disclosure does not impose any restrictions on this.

[0044] Alternatively, if Figure 1 and Figure 2 As shown, the fire protection system 10 also includes a plurality of water collection tanks 13, and the number of the plurality of water collection tanks 13 is equal to the number of the plurality of pipe units 111 and they are arranged correspondingly, and each of the plurality of water collection tanks 13 is located at the bottom of the corresponding pipe unit 111. By configuring a corresponding water collection tank 13 at the bottom of each pipe unit 111, the water collection tank 13 can be used to collect the water flow of the water curtain sprayed from the pipe unit 111, so as to realize the centralized collection of the water flow. From the perspective of the ground structure of the energy storage system, it is only necessary to waterproof the water collection tank 13, and there is no need to waterproof the entire ground, which helps to simplify the waterproof construction. As an example, the water collection tank 13 can be an annular pool corresponding to the arrangement of the pipe unit 111, and the annular pool surrounds the outer periphery of the corresponding energy storage battery compartment 20. The water collection tank 13 can also be a hollow continuous water pool, and the corresponding energy storage battery compartment 20 can be arranged in the water collection tank 13 at this time, and the present disclosure does not limit this.

[0045] Alternatively, if Figure 1 and Figure 2 As shown, each of the multiple water collection pools 13 is provided with a battery compartment base 21, and the battery compartment base 21 is used to place the energy storage battery compartment 20, which can provide sufficient water collection space at the bottom of the energy storage battery compartment 20 and reduce the contact between the energy storage battery compartment 20 and the accumulated water.

[0046] Alternatively, if Figure 2As shown, the fire protection system 10 also includes a drainage channel 14, and multiple water collection tanks 13 are connected to each other through the drainage channel 14. By connecting each water collection tank 13 using the drainage channel 14, the accumulated water in each water collection tank 13 can be easily collected and discharged, reducing water residue. It should be understood that the number and setting positions of the drainage channels 14 can be reasonably designed as needed to meet the drainage requirements, and the present disclosure does not limit this. As an example, a drain port can be set at the bottom wall or the bottom of the side wall of each water collection tank 13, and the drainage channel 14 is connected to the drain port.

[0047] Alternatively, if Figure 1 and Figure 2 As shown, the energy storage system also includes a chamber 30 (for ease of display, only the ground of the chamber 30 is shown in the figure), and multiple water collecting pools 13 and drainage channels 14 are located in the chamber 30. From one end of the chamber 30 to the other end of the chamber 30, the bottom wall heights of the multiple water collecting pools 13 and the drainage channels 14 gradually decrease, so that the bottom walls of the multiple water collecting pools 13 and the drainage channels 14 are inclined along a certain direction of the chamber 30, so that the accumulated water flows from high to low under the action of gravity, which facilitates the smooth discharge of the accumulated water and helps to further reduce the residual accumulated water.

[0048] Alternatively, if Figure 1 As shown, the fire protection system 10 also includes a wastewater tank 15, which is connected to the multiple water collection tanks 13. By setting up the wastewater tank 15, the accumulated water in each water collection tank 13 can be collected and quickly emptied, and the volume of the water collection tank 13 can be appropriately reduced, which helps to save space. For a fixed volume space, the number of energy storage battery compartments 20 can be increased while ensuring safety. As an example, the wastewater tank 15 can be as follows Figure 1 As shown, it is arranged in the chamber 30, and can also be arranged outside the chamber 30; Figures 1 to 3 As shown ( Figure 3 (The fire control cabinet 12 is not shown in the figure), the depth and opening size of the wastewater tank 15 can be significantly larger than the depth and opening size of the water collecting tank 13 to meet the needs of collecting accumulated water. In addition, for the embodiment in which the bottom wall heights of multiple water collecting tanks 13 and drainage channels 14 gradually decrease from one end of the chamber 30 to the other end of the chamber 30, the wastewater tank 15 can be connected to the water collecting tank 13 with the lowest bottom wall height, and specifically can be connected through the drainage channel 14, so that the water in the water collecting tank 13 farthest from the wastewater tank 15 can flow smoothly into the wastewater tank 15, and ensure that all water collecting tanks 13 along the way are free of water.

[0049] In a specific embodiment, the fire protection system 10 for an energy storage system disclosed in the present invention includes a fire protection pipe 11, a fire control cabinet 12, a water collection tank 13, a drainage channel 14 and a boiling water pool. A water collection tank 13 is provided at the foundation of each energy storage battery compartment 20 in the energy storage system. The water collection tank 13 is provided below the energy storage battery compartment 20, and each water collection tank 13 is interconnected through a drainage channel 14. The water collection tank 13 is waterproofed and has anti-leakage measures. A fire protection pipe 11 including a trunk pipe 112 and a pipe unit 111 is provided above the energy storage battery compartment 20. The water curtain sprayed by the pipe unit 111 can surround the entire energy storage battery compartment 20. The water curtain can reduce the pollution of the battery thermal runaway to the environment and the impact on other surrounding energy storage battery compartments 20. The water collection tank 13 of each energy storage battery compartment 20 is connected and leads to a centralized wastewater pool 15. The wastewater after the fire is extinguished by the fire water first flows to the water collection tank 13, and then flows to the wastewater pool 15 through the interconnected drainage channels 14.

[0050] Another aspect of the present disclosure provides an energy storage system, which includes: a plurality of energy storage battery compartments 20, each of which is waterproof; and a fire-fighting system 10 provided by any of the above embodiments of the present disclosure, thereby having all the beneficial technical effects of the fire-fighting system 10, which will not be repeated here.

[0051] The specific implementation methods of the present disclosure have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments may be modified and varied without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents. These modifications and variations should also be within the scope of protection of the claims of the present disclosure.

Claims

1. A fire fighting system (10) for an energy storage system, the energy storage system comprising a plurality of energy storage battery compartments (20) that have been waterproofed, characterized in that: The fire fighting system (10) comprises: A fire-fighting pipeline (11), comprising a plurality of pipeline units (111), each pipeline unit (111) of the plurality of pipeline units (111) being arranged above at least one energy storage battery compartment (20) along the periphery of the at least one energy storage battery compartment (20) of the plurality of energy storage battery compartments (20), each pipeline unit (111) of the plurality of pipeline units (111) being provided with a water outlet hole and a water outlet switch; and The fire control cabinet (12) is electrically connected to each of the water outlet switches of the fire pipe (11).

2. The fire fighting system (10) according to claim 1, characterized in that: The fire-fighting pipeline (11) further comprises a trunk pipeline (112), wherein the trunk pipeline (112) is used to connect to a fire-fighting water system, and each of the plurality of pipeline units (111) is independently connected to the trunk pipeline (112).

3. The fire fighting system (10) according to claim 1, characterized in that: The water outlet comprises: a first water outlet hole, located at the bottom of the pipe unit (111); and / or The second water outlet is located obliquely above the inner side of the pipe unit (111).

4. The fire fighting system (10) according to any one of claims 1 to 3, characterized in that: The fire protection system (10) further comprises a plurality of water collection tanks (13), the number of the plurality of water collection tanks (13) being equal to the number of the plurality of pipe units (111) and being arranged correspondingly, and each of the plurality of water collection tanks (13) being located at the bottom of a corresponding pipe unit (111).

5. The fire fighting system (10) according to claim 4, characterized in that: The fire protection system (10) further comprises a drainage channel (14), and the plurality of water collection tanks (13) are connected to each other via the drainage channel (14).

6. The fire fighting system (10) according to claim 5, characterized in that: The energy storage system further comprises a chamber (30), wherein the plurality of water collecting tanks (13) and the drainage channel (14) are located in the chamber (30), and the bottom wall heights of the plurality of water collecting tanks (13) and the drainage channel (14) gradually decrease from one end of the chamber (30) to the other end of the chamber (30).

7. The fire fighting system (10) according to claim 4, characterized in that: A battery compartment base (21) is provided in each of the plurality of water collection pools (13), and the battery compartment base (21) is used for placing the energy storage battery compartment (20).

8. The fire fighting system (10) according to claim 4, characterized in that: The fire protection system (10) further comprises a wastewater pool (15), wherein the wastewater pool (15) is connected to the plurality of water collection pools (13).

9. The fire fighting system (10) according to any one of claims 1 to 3, characterized in that: The fire protection system (10) further comprises a detection device, which is used to detect signs of fire in the energy storage battery compartment (20), and the detection device is communicatively connected to the fire protection control cabinet (12).

10. An energy storage system, characterized in that: The energy storage system comprises: A plurality of energy storage battery compartments (20), each of the plurality of energy storage battery compartments (20) being waterproofed; and A fire fighting system (10) as claimed in any one of claims 1 to 9.

Images