Fire-resistant battery compartment for energy storage power station and energy storage power station

Abstract

The utility model relates to power generation, power transformation or power distribution technical field, especially a kind of fire resistance battery compartment for energy storage power station and energy storage power station, the energy storage power station of the utility model includes several battery compartments, each battery compartment includes bottom plate, bottom plate is equipped with several vertical magic cube battery, each vertical magic cube battery is arranged in row and forms single-row battery compartment or multiple-row battery compartment including at least two single rows, form gap between every two adjacent vertical magic cube battery in the same row, when battery compartment is arranged as multiple-row battery compartment, gap is also formed between every two adjacent two rows of vertical magic cube battery, fireproof partition is arranged in each gap on bottom plate for preventing fire spread.The utility model's fireproof partition is less limited in use, is not influenced by vertical magic cube battery size, quantity and layout mode, just need to be clamped between two adjacent vertical magic cube battery to achieve the purpose of blocking fire spread and absorbing deformation amount.

Description

Technical Field

[0001] This utility model relates to the fields of power generation, power transformation or power distribution technology, and in particular to a fire-retardant battery compartment for an energy storage power station and an energy storage power station. Background Technology

[0002] An energy storage power station is a system that stores, converts, and releases cyclical electrical energy through electrochemical batteries or electromagnetic energy storage media. It is primarily used to regulate peak and off-peak electricity demand. Simply put, it uses large battery packs to store excess electricity from the grid during off-peak periods and then feeds it back into the grid during peak periods to alleviate power shortages. In recent years, vertical cube batteries have gradually emerged in energy storage power stations. A cube battery typically refers to an energy storage battery system with flexible and adjustable characteristics. Multiple cells are connected in series and parallel within a casing to form a vertical cube battery. Multiple cube batteries are placed close together in a designated area to form a battery compartment. The core of an energy storage power station consists of these battery compartments and other components.

[0003] In existing energy storage power stations, electrochemical batteries, specifically lithium-ion batteries, are typically used as the storage medium for electrical energy storage. Lithium-ion batteries are rechargeable batteries that primarily rely on the movement of lithium ions between the positive and negative electrodes to function. They offer advantages such as high energy density, long lifespan, low self-discharge rate, and fast charging capability. However, in practical use, lithium-ion batteries may pose a safety hazard of thermal runaway. Thermal runaway refers to the cumulative increase in current and battery temperature during constant-voltage charging, leading to gradual damage. Therefore, when a battery is overcharged, short-circuited, or physically damaged, its internal temperature may rise sharply, releasing large amounts of heat and gas, potentially causing fires or even explosions. In an energy storage power station, if one of the vertical cube batteries catches fire due to thermal runaway, the fire can spread rapidly, causing adjacent vertical cube batteries to also catch fire. This vicious cycle of fire can ultimately destroy the entire battery compartment, rendering it unusable, and may even affect the safety of adjacent battery compartments. Therefore, it is necessary to implement measures to isolate these adjacent vertical cube batteries and block the spread of fire, so as to prevent the entire battery compartment from being damaged and scrapped if one of the vertical cube batteries catches fire due to thermal runaway.

[0004] Chinese utility model patent document with authorization announcement number CN219499046U and authorization announcement date of 2023 / 08 / 08 discloses a safety testing device for an electrochemical energy storage power station. The device includes a flame-retardant box, which has several independent compartments, and a battery box is placed in each independent compartment.

[0005] This device protects the battery boxes within their respective compartments using flame-retardant boxes with independent sections, preventing a fire in one compartment from spreading to adjacent boxes. Multiple flame-retardant boxes can be stacked. While these boxes effectively block fires and protect adjacent battery boxes, the space occupied by vertical cube batteries is significant for larger energy storage stations. The relatively small size and stacked arrangement of these flame-retardant boxes make it unsuitable for the sequential arrangement of vertical cube batteries. Furthermore, the stacked flame-retardant boxes hinder the removal, replacement, or maintenance of a single faulty battery. Therefore, the application of flame-retardant boxes in larger energy storage stations has certain limitations. Utility Model Content

[0006] The purpose of this invention is to provide a fire-retardant battery compartment for energy storage power stations, so as to solve the problem that the existing flame-retardant boxes have certain limitations when applied to larger energy storage power stations.

[0007] The purpose of this utility model is also to provide an energy storage power station to solve the problem that the flame-retardant box has certain limitations when applied to larger energy storage power stations in the prior art.

[0008] To solve the above problems, the fire-retardant battery compartment for energy storage power stations of this utility model adopts the following technical solution: A fire-resistant battery compartment for an energy storage power station includes a base plate on which a plurality of vertical cube batteries are arranged. The vertical cube batteries are arranged in rows to form a single-row battery compartment or a multi-row battery compartment including at least two single rows. A gap is formed between any two adjacent vertical cube batteries in the same row. When the battery compartment is arranged in a multi-row battery compartment, a gap is also formed between any two adjacent rows of vertical cube batteries. A fire-resistant partition for preventing the spread of fire is provided in each of the gaps on the base plate.

[0009] Furthermore, the fire-resistant partitions are fixed by clamping each of the two adjacent vertical cube batteries.

[0010] Furthermore, the fire-resistant partition between adjacent rows of vertical cube batteries is an integral fire-resistant partition.

[0011] Furthermore, each of the vertical cube batteries located at the first and last ends of each row is provided with a fire-resistant partition on the outer side of its arrangement direction. Each fire-resistant partition on the outer side is provided with a clamping member on the side opposite to the corresponding vertical cube battery to clamp the outer fire-resistant partition onto the corresponding vertical cube battery.

[0012] Furthermore, the clamping element is a support block.

[0013] Furthermore, the sidewalls of each of the fire-resistant partitions that contact the vertical cube battery are all larger than the corresponding sidewalls of the vertical cube battery to increase the blocking surface.

[0014] Furthermore, a fire-resistant coating is provided on the surface of each of the fire-resistant partitions that contacts the vertical cube battery.

[0015] Furthermore, the fire-resistant partition is an elastic fire-resistant partition to absorb the deformation when the vertical cube battery deforms.

[0016] Furthermore, the fire-resistant partition is a calcium carbonate fiber fire-resistant partition.

[0017] Beneficial Effects: This invention relates to an improved fire-resistant battery compartment for energy storage power stations. Based on existing battery compartments, this fire-resistant battery compartment leaves gaps between single or multiple rows of closely spaced vertical cube batteries arranged on the base plate. Fire-resistant partitions are then installed within these gaps. These partitions effectively prevent the spread of fire should one of the vertical cube batteries spontaneously combust due to thermal runaway, thus avoiding the possibility of the entire battery compartment being destroyed by the fire. Furthermore, the use of these fire-resistant partitions has fewer limitations; they are not affected by the size, number, or layout of the vertical cube batteries. They only need to be placed between adjacent vertical cube batteries to achieve the purpose of preventing the spread of fire.

[0018] To solve the above problems, the energy storage power station of this utility model adopts the following technical solution: An energy storage power station includes several battery compartments, each battery compartment including a base plate, on which several vertical cube batteries are disposed. The vertical cube batteries are arranged in rows to form a single-row battery compartment or include at least two single-row multi-row battery compartments. A gap is formed between each pair of adjacent vertical cube batteries in the same row. When the battery compartments are arranged in multi-row battery compartments, a gap is also formed between each pair of adjacent rows of vertical cube batteries. A fire-resistant partition for preventing the spread of fire is provided in each of the gaps on the base plate.

[0019] Furthermore, the fire-resistant partitions are fixed by clamping each of the two adjacent vertical cube batteries.

[0020] Furthermore, the fire-resistant partition between adjacent rows of vertical cube batteries is an integral fire-resistant partition.

[0021] Furthermore, each of the vertical cube batteries located at the first and last ends of each row is provided with a fire-resistant partition on the outer side of its arrangement direction. Each fire-resistant partition on the outer side is provided with a clamping member on the side opposite to the corresponding vertical cube battery to clamp the outer fire-resistant partition onto the corresponding vertical cube battery.

[0022] Furthermore, the clamping element is a support block.

[0023] Furthermore, the sidewalls of each of the fire-resistant partitions that contact the vertical cube battery are all larger than the corresponding sidewalls of the vertical cube battery to increase the blocking surface.

[0024] Furthermore, a fire-resistant coating is provided on the surface of each of the fire-resistant partitions that contacts the vertical cube battery.

[0025] Furthermore, the fire-resistant partition is an elastic fire-resistant partition to absorb the deformation when the vertical cube battery deforms.

[0026] Furthermore, the fire-resistant partition is a calcium carbonate fiber fire-resistant partition.

[0027] Beneficial Effects: This utility model of energy storage power station is an improved invention. Based on existing technology, this utility model of energy storage power station leaves gaps between single or multiple rows of closely spaced vertical cube batteries arranged in the battery compartment. Fire-resistant partitions are then installed within these gaps. These partitions effectively prevent the spread of fire should one of the vertical cube batteries spontaneously combust due to thermal runaway, thus avoiding the possibility of the entire battery compartment being burned or damaged. Furthermore, the use of these fire-resistant partitions has fewer limitations; they are not affected by the size, number, or layout of the vertical cube batteries. They only need to be placed between pairs of adjacent vertical cube batteries to achieve the purpose of preventing the spread of fire. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of one embodiment of the fire-retardant battery compartment for an energy storage power station according to this utility model; Figure 2 This is a schematic diagram of the battery compartment.

[0029] In the diagram: 1. Base plate; 2. Vertical cube battery; 3. Gap; 4. Fire-resistant partition; 5. Integrated fire-resistant partition; 6. Battery compartment. Detailed Implementation

[0030] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0031] An embodiment of the fire-retardant battery compartment for energy storage power stations according to this utility model is as follows: The fire-resistant battery compartment for energy storage power stations of this utility model utilizes the principle of physical isolation and blocking. Through the fire resistance and deformation capability of the fire-resistant partition, it effectively prevents the transmission of fire and deformation failure from the vertical cube battery to adjacent vertical cube batteries.

[0032] As a basic solution, such as Figure 1-2As shown, the fire-retardant battery compartment for energy storage power stations of this utility model includes a base plate 1. The base plate 1 serves as the basic structure of the battery compartment 6, stably supporting each vertical cube battery 2 and other related equipment, ensuring the stability of the entire battery compartment 6 system. The base plate 1 also effectively isolates the battery compartment 6 from direct contact with the ground, preventing damage to the internal equipment of the battery compartment 6 caused by ground moisture or water accumulation. Several vertical cube batteries 2 are provided on the base plate 1. The vertical cube batteries 2 are arranged in rows to form a single-row battery compartment or a multi-row battery compartment including at least two single rows. The vertical cube batteries 2, as the core component of the battery compartment 6, can be arranged in single or multiple rows according to their quantity. They are mainly responsible for storing electrical energy and releasing electrical energy when needed. The battery compartment 6, in turn, constitutes the core component of the energy storage power station and plays a crucial role. A gap 3 is formed between each pair of adjacent vertical cube batteries 2 in the same row. When the battery compartment 6 is arranged in multiple rows, a gap 3 is also formed between each pair of adjacent vertical cube batteries 2. A fire-resistant partition 4 is provided on the base plate 1 in each of the gaps 3 to prevent the spread of fire. The gap 3 left between the vertical cube batteries 2 that are close to each other in the prior art is used to set the fire-resistant partition 4. The fire-resistant partition 4 can protect the adjacent vertical cube batteries 2, so as to effectively prevent the vicious spread of fire when one of the vertical cube batteries 2 spontaneously combusts due to thermal runaway. This can avoid the possibility of the entire battery compartment 6 being burned and damaged due to the vicious spread of fire. The design of the fire-resistant partition 4 is easy to implement, does not require complicated installation tools and has few limitations. It is not affected by the size, number and layout of the vertical cube batteries 2. It only needs to be set between each pair of adjacent vertical cube batteries 2 to achieve the purpose of preventing the spread of fire.

[0033] As a preferred implementation method, such as Figure 1As shown, each fire-resistant partition 4 is fixed by clamping the two adjacent vertical cube batteries 2 together. The design of clamping the fire-resistant partition 4 with two adjacent vertical cube batteries 2 creates a stable structure between each vertical cube battery 2 and the fire-resistant partition 4. This design is simple to implement and highly flexible, requiring no complicated tools or devices. It only requires clamping with two adjacent vertical cube batteries 2 and is not affected by the number or arrangement of the vertical cube batteries 2. The number of fire-resistant partitions 4 can be gradually increased or decreased according to the number of batteries. In addition, when a single vertical cube battery 2 is damaged, the size of the gap 3 can be adjusted to leave the space required to remove the vertical cube battery 2. Then, the corresponding vertical cube battery 2 can be removed directly or with the help of tools for maintenance or replacement. In other embodiments, each fire-resistant partition 4 is fixed to the base plate 1 by adhesive bonding. Although the adhesive bonding method is less flexible and requires the use of other media compared to the preferred embodiment, the number of cube batteries in a battery compartment 6 in an energy storage power station is usually fixed after it is set up. Therefore, fixing the fire-resistant partition 4 to the base plate 1 by adhesive bonding basically does not require moving, so the purpose of fixing the fire-resistant partition 4 can also be achieved.

[0034] As a preferred implementation method, such as Figure 1 As shown, the fire-resistant partition 4 between adjacent rows of vertical cube batteries 2 is an integrated fire-resistant partition 5. That is, when the battery compartment 6 is arranged in multiple rows of battery compartments, the adjacent rows of vertical cube batteries 2 are separated by an integrated fire-resistant partition 5. The design of this integrated fire-resistant partition 5 forms a more stable structure between each row, which can further and better isolate the adjacent rows of vertical cube batteries 2. The integrated design also has the advantage of improving space utilization. It can make more compact use of the area of ​​the base plate 1 to further optimize the layout of the space occupied by each battery compartment 6 in the energy storage power station, reduce the gaps 3 and redundant parts between the fire-resistant partitions 4, and help improve the space utilization and energy storage density of the battery compartment 6. In addition, the design of the integrated fire-resistant partition 5 is usually simpler and more beautiful, which helps to improve the overall appearance and neatness of the battery compartment 6.

[0035] As a preferred implementation method, such as Figure 1As shown, each of the vertical cube batteries 2 located at the first and last ends of each row is provided with a fire-resistant partition 4 on its outer side in the arrangement direction. Each fire-resistant partition 4 located on the outer side, away from the corresponding vertical cube battery 2, is provided with a clamping member to clamp the outer fire-resistant partition 4 against the corresponding vertical cube battery 2. Since the distance between battery compartments 6 in an energy storage power station is generally set relatively close, providing fire-resistant partitions 4 on the outer side of the first and last vertical cube batteries 2 can effectively protect the other battery compartment 6 from the spread of fire and the adverse effects of its high temperature. Since the fire-resistant partition 4 is on the outermost side and no vertical cube battery 2 clamps it, a clamping member is provided. The fire-resistant partition 4 is pressed against the corresponding vertical cube battery 2, which can effectively prevent the fire-resistant partition 4 from tipping over under external force or when the vertical cube battery 2 is deformed. The pressing member is a support block. The support block presses the outer fire-resistant partition 4 against the corresponding vertical cube battery 2 to prevent it from tipping over. The support block has a simple structure and low cost. For example, existing idle blocks or bricks in the energy storage power station can be used as support blocks, which can further save costs. In other embodiments, the pressing member can be designed as a support rod, which forms a stable triangle with the outer fire-resistant partition 4, and can also serve to press the outer fire-resistant partition 4 against it.

[0036] In a preferred embodiment, the sidewalls of each fire-resistant partition 4 that contact the vertical cube battery 2 are larger than the corresponding sidewalls of the vertical cube battery 2 to increase the blocking surface. When one of the vertical cube batteries 2 catches fire, the design that the sidewalls of the fire-resistant partition 4 are larger than the sidewalls of the vertical cube battery 2 can form a larger fire-resistant area, thereby effectively blocking the spread of flames and heat, slowing down the spread of the fire, and providing more time for on-site maintenance personnel to control the fire and remove the damaged batteries. In other embodiments, the specific dimensions of the sidewalls of the fire-resistant partition 4 can be adjusted according to the size of the batteries they contact.

[0037] In a preferred embodiment, a fire-resistant coating is provided on the surfaces of each of the fire-resistant partitions 4 that contact the vertical cube battery 2. The fire-resistant partitions 4 can effectively isolate the spread of fire when the vertical cube battery 2 catches fire, and the addition of the fire-resistant coating can further enhance the fire resistance of the partitions. The fire-resistant coating itself has excellent flame retardancy and non-combustibility, and can maintain structural integrity in high-temperature environments, thereby effectively delaying the spread of fire. Therefore, when coated on the fire-resistant partitions 4, its fire resistance can be further enhanced and its fire resistance limit can be improved. In addition, the fire-resistant coating also has good heat insulation properties, which can reduce the rate of heat transfer to adjacent vertical cube batteries 2 when the vertical cube battery 2 catches fire. The combined use of the fire-resistant partitions 4 and the fire-resistant coating provides double fire protection for each vertical cube battery 2 and even the battery compartment 6. In other embodiments, the fire-resistant coating can be selected according to coating requirements, cost budget, etc.

[0038] In a preferred embodiment, the fire-resistant partition 4 is an elastic fire-resistant partition to absorb the deformation of the vertical cube battery 2. When one of the vertical cube batteries 2 catches fire and the fire is large, the vertical cube battery 2 is prone to expansion and deformation due to the increase in temperature. When deformed, it will squeeze the fire-resistant partition 4 and transfer to the adjacent vertical cube battery 2, causing the adjacent vertical cube battery 2 to also be squeezed and deformed. Therefore, the fire-resistant partition 4 is designed as an elastic fire-resistant partition, which can absorb the deformation to a certain extent and keep the vertical cube batteries 2 in the battery compartment 6 still neatly arranged, effectively preventing the deformation from affecting the other vertical cube battery 2, thereby improving the overall safety of the battery compartment 6. The fire-resistant partition 4 is a thickened fire-resistant partition 4. The thickened design can better absorb the deformation of the vertical cube battery 2, and improve the fire resistance and service life of the partition. In other embodiments, the fire-resistant partition 4 is not thickened, maintaining its original thickness that can effectively block fire. After being burned by fire, it needs to be inspected or replaced to ensure that it can effectively block fire when the vertical cube battery 2 catches fire next time.

[0039] In a preferred embodiment, the fire-resistant partition 4 is a calcium carbonate fiber fire-resistant partition. Calcium silicate fiberboard is a board made from inorganic materials such as lime and silicates as the main raw materials, and is produced through high-temperature calcination and fiberization. It has good fire resistance and heat insulation properties, and can maintain structural integrity in high-temperature environments. At the same time, calcium silicate fiberboard also has a certain degree of elasticity and toughness, and can withstand a certain degree of deformation without breaking. Therefore, this calcium carbonate fiber fire-resistant partition can meet the requirement of preventing the spread of fire to another adjacent vertical cube battery 2 when one of the vertical cube batteries 2 catches fire due to thermal runaway. It can also absorb the deformation of the vertical cube battery 2 caused by temperature rise, so as to protect the adjacent vertical cube battery 2 from fire invasion and compression deformation. In other embodiments, fire-resistant partition 4 made of different materials can also be selected to achieve the purpose of blocking the malignant spread of fire and absorbing deformation.

[0040] The specific usage process of the fire-retardant battery compartment for the energy storage power station of this utility model is as follows: Figure 1-2 As shown, each vertical cube battery 2 is placed on the base plate 1 to form a battery compartment 6. When placing the batteries, a fire-resistant partition 4 is clamped between each pair of adjacent vertical cube batteries 2. This process is repeated to form a single row of battery compartments or multiple rows of battery compartments including at least two single rows. The fire-resistant partition 4 between adjacent rows of vertical cube batteries 2 can be set as an integrated fire-resistant partition 5 to improve the fire resistance and aesthetics.

[0041] An embodiment of the energy storage power station of this utility model is as follows: An energy storage power station includes several battery compartments 6, wherein embodiments of the battery compartments 6 have been described above and will not be repeated here.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A fire-retardant battery compartment for an energy storage power station, comprising a base plate, wherein a plurality of vertical cube batteries are disposed on the base plate, and the vertical cube batteries are arranged in rows to form a single-row battery compartment or a multi-row battery compartment comprising at least two single rows, characterized in that, A gap is formed between each pair of adjacent vertical cube batteries in the same row. When the battery compartment is arranged in multiple rows, a gap is also formed between each pair of adjacent vertical cube batteries. A fire-resistant partition is provided in each gap on the base plate to prevent the spread of fire.

2. The fire-retardant battery compartment for an energy storage power station according to claim 1, characterized in that, Each fire-resistant partition is fixed by clamping it with two adjacent vertical cube batteries.

3. The fire-retardant battery compartment for an energy storage power station according to claim 1, characterized in that, The fire-resistant partition between adjacent rows of vertical cube batteries is an integral fire-resistant partition.

4. The fire-retardant battery compartment for an energy storage power station according to claim 1, characterized in that, Each of the vertical cube batteries located at the first and last ends of each row is provided with a fire-resistant partition on the outer side of its arrangement direction. Each fire-resistant partition on the outer side is provided with a clamping member on the side opposite to the corresponding vertical cube battery to clamp the outer fire-resistant partition onto the corresponding vertical cube battery.

5. The fire-retardant battery compartment for an energy storage power station according to claim 4, characterized in that, The clamping element is a support block.

6. The fire-retardant battery compartment for an energy storage power station according to any one of claims 1-5, characterized in that, The sidewalls of each of the fire-resistant partitions that contact the vertical cube battery are larger than the corresponding sidewalls of the vertical cube battery to increase the blocking surface.

7. The fire-retardant battery compartment for an energy storage power station according to claim 6, characterized in that, A fire-resistant coating is provided on the surface of each of the fire-resistant partitions that contacts the vertical cube battery.

8. The fire-retardant battery compartment for an energy storage power station according to any one of claims 1-5, characterized in that, The fire-resistant partition is an elastic fire-resistant partition to absorb the deformation when the vertical cube battery deforms.

9. The fire-retardant battery compartment for an energy storage power station according to claim 8, characterized in that, The fire-resistant partition is a calcium carbonate fiber fire-resistant partition.

10. An energy storage power station, comprising a plurality of battery compartments, characterized in that, Each of the battery compartments is the battery compartment described in any one of claims 1-9.

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