Aerogel material energy storage cabinet

Abstract

The utility model discloses an aerogel material energy storage cabinet which comprises a cabinet body and a cabinet door, and a containing bin is arranged in the cabinet body and used for storing batteries. An opening is formed in the surface of one side of the cabinet body and communicated with the containing bin. The cabinet door is connected with the cabinet body and can move relative to the cabinet body to open or close the opening; the cabinet body wall of the cabinet body comprises an inner wall and an outer wall, the inner wall is located in the cabinet body and faces one side of the containing bin, the outer wall is located on the outer side surface of the cabinet body and faces one side, away from the containing bin, of the cabinet body, and a gap is formed between the inner wall and the outer wall; an aerogel material combination layer is arranged in the gap, and the combination layer is composed of five aerogel material layers; the surface of the side, facing the containing bin, of the inner wall and the surface of the side, deviating from the containing bin, of the outer wall are both coated with aerogel coating materials.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, and in particular to an energy storage cabinet made of an aerogel material. Background Art

[0002] To regulate peak and valley electricity consumption, energy storage power stations are developing rapidly, along with the vigorous development of chemical batteries such as lithium batteries and sodium batteries. However, the safety hazards of chemical batteries are objectively present to a certain extent. To improve the safety of energy storage power stations, energy storage cabinets are often made of thermal insulation materials. The purpose is to effectively control the combustion within the cabinet when the internal battery cell fails, avoiding the spread of combustion to adjacent buildings.

[0003] In existing technology, energy storage cabinets generally use traditional sandwich rock wool panels, but this material cannot withstand high temperatures exceeding 850°C. Furthermore, the overall steel structure of the energy storage cabinet can easily lose its ability to contain the battery cell flames if the insulation layer burns through, causing the cabinet to lose its ability to contain the continued combustion of the battery cell flames, thereby igniting nearby structures. Some cabinets also use cement sandwich panels. Although they can withstand high temperatures, these cabinets are too heavy, inconvenient to move and construct, and have high engineering costs. Furthermore, these two materials are not conducive to the constant temperature control requirements within the energy storage cabinet. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an aerogel energy storage cabinet to solve the problems of poor combustion resistance, heavy weight and poor thermal insulation effect of the energy storage cabinet in the prior art.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An aerogel energy storage cabinet includes a storage compartment for storing batteries; an opening is provided on one side of the cabinet, the opening being connected to the storage compartment; a cabinet door is connected to the cabinet and can move relative to the cabinet to open or close the opening; the cabinet wall includes an inner wall and an outer wall, the inner wall being located inside the cabinet and facing the storage compartment, and the outer wall being located on the outer surface of the cabinet and facing away from the storage compartment, with a gap between the inner and outer walls; an aerogel material composite layer is provided within the gap, the composite layer comprising five layers of aerogel material, the layers being arranged sequentially from the side close to the storage compartment to the side away from the storage compartment, the aerogel material layer close to the storage compartment being fixedly connected to the inner wall, and the aerogel material layer away from the storage compartment being fixedly connected to the outer wall; an aerogel coating material is applied to both the inner wall facing the storage compartment and the outer wall facing away from the storage compartment. The aerogel is SiO2 aerogel material, and the thickness of the aerogel coating material is 2-3 mm.

[0007] Preferably, two adjacent aerogel material layers are fastened by ceramic screws or Kevlar wires.

[0008] Preferably, within the gap, the surfaces of the inner and outer walls on opposite sides are further provided with multiple slots and insert plates, with the slots on the inner wall corresponding to the slots on the outer wall, and the insert plates on opposite sides being able to be inserted into the slots on the inner and outer walls simultaneously, so that the insert plates are arranged perpendicular to the planes of the inner and outer walls. The insert plates reinforce the cabinet wall, preventing damage to the aerogel material layer, which would otherwise affect its thermal insulation and fire resistance.

[0009] Preferably, the thickness of the aerogel material layer is 1-10 cm, and the density of the aerogel material layer is 200±30 kg / m 3 .

[0010] Preferably, the thermal conductivity of the aerogel material layer does not exceed 0.021 W / (m·K).

[0011] Preferably, the energy storage cabinet is further provided with a cooling device for maintaining a stable temperature in the storage compartment of the energy storage cabinet. The cooling device is a water cooling system or an air cooling system.

[0012] Preferably, one side edge of the inner wall is bent in the direction away from the accommodating compartment and then continues to extend to form a connecting end I; one side edge of the outer wall is bent in the direction close to the accommodating compartment and then continues to extend to form a connecting end II; the connecting end II is located on the side opposite to the connecting end I; a slide groove I is provided on the side surface of the outer wall facing the inner wall, and the position of the slide groove I corresponds to the position of the connecting end I, so that the connecting end I can be inserted into the slide groove I; at the same time, a slide groove II is provided on the side surface of the inner wall facing the outer wall, and the position of the slide groove II corresponds to the position of the connecting end II, so that the connecting end II can be inserted into the slide groove II.

[0013] Preferably, the edges of the combined layers are stepped, and two adjacent combined layers are connected by interlocking the stepped edges, so as to avoid the formation of gaps between the combined layers that would cause heat leakage and reduce the thermal insulation effect.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present invention utilizes a structure combining interlayer and aerogel materials to improve the fire resistance, low thermal conductivity, and heat preservation of the energy storage cabinet, effectively reducing the operating load of the cooling device and making the energy storage cabinet lightweight overall. The energy storage cabinet described in the present invention can be used in areas with hot summers and cold winters, or hot during the day and cold at night, and ensures minimal temperature fluctuations inside the cabinet, which is very helpful for the operation of constant temperature control chemical battery systems.

[0016] 2. The utility model uses aerogel coating to protect the outside of the cabinet, which can effectively prevent extreme low temperatures (such as those in the North and South Poles) from causing temperature deviation inside the energy storage cabinet, affecting the discharge capacity of the battery cell and possibly causing low-temperature lithium deposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an aerogel energy storage cabinet of the present utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of A.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of B.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of C.

[0021] In the figure: inner wall 1, outer wall 2, aerogel material layer 3, aerogel coating material 4, slot 5, plug-in plate 6, connection end I 7, connection end II 8, chute I 9, chute II 10. DETAILED DESCRIPTION

[0022] The present invention will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the present invention are within the scope of protection of the present invention.

[0023] The embodiment of the present application provides an aerogel energy storage cabinet, including a cabinet body and a cabinet door. The cabinet body has a storage compartment for storing batteries; a side surface of the cabinet body is provided with an opening, which is connected to the storage compartment; the cabinet door is connected to the cabinet body and can move relative to the cabinet body to open or close the opening. The cabinet body wall includes an inner wall and an outer wall, such as Figures 1 to 4As shown, the inner wall is located inside the cabinet and faces the side of the storage bin, the outer wall is located on the outer surface of the cabinet and faces the side of the cabinet away from the storage bin, and there is a gap between the inner wall and the outer wall; an aerogel material combination layer is provided in the gap, and the combination layer is composed of five layers of aerogel material layers 3, and the aerogel material layers are arranged in sequence from the side close to the storage bin to the side away from the storage bin, the aerogel material layer close to the storage bin is fixedly connected to the inner wall, and the aerogel material layer away from the storage bin is fixedly connected to the outer wall. The surface of the side of the inner wall facing the storage bin and the surface of the side of the outer wall facing away from the storage bin are both coated with aerogel coating material. The cabinet also includes a support frame, which includes a plurality of support rods arranged horizontally and vertically, and two adjacent support rods are fixedly connected to each other, so that the support frame forms a cubic frame structure. The cabinet wall is mounted on the support frame and fixedly connected to it. The entire support frame is coated with an aerogel coating, which also provides fire protection. Even if the batteries in the storage compartment catch fire, the support frame maintains the integrity of the energy storage cabinet as much as possible, preventing rapid collapse due to high temperatures and the spread of fire to other nearby energy storage cabinets. The cabinet is also equipped with at least two explosion-proof holes, one end of which connects to the external environment and the other end to the storage compartment. Pressure relief valves are installed in the explosion-proof holes. During normal operation, the energy storage cabinet is closed. If a fire in the energy storage cabinet causes the pressure in the storage compartment to rise, or if an explosion occurs, the pressure relief valve opens to quickly release pressure once the pressure reaches a threshold, preventing the cabinet from exploding. The energy storage cabinet also includes a cooling device to maintain a stable temperature within the storage compartment. The cooling device can be a water cooling system or an air cooling system. When chemical batteries are placed in the energy storage cabinet, they generate heat during use. This heat is cooled by the cooling device to maintain a constant temperature within the storage compartment. Furthermore, the five layers of aerogel material in the cabinet walls and the aerogel coating applied to both the interior and exterior of the cabinet prevent the ambient temperature outside the cabinet from affecting the operating temperature of the batteries within the storage compartment. The energy storage cabinet can be used in areas with hot summers and cold winters, or areas with hot days and cold nights. It also minimizes temperature fluctuations within the cabinet, which is particularly beneficial for chemical battery systems that require constant temperature operation. This is particularly true in extreme low-temperature environments, where extremely low temperatures can easily lead to low temperatures within the cabinet, affecting the discharge capacity of the battery cells and potentially causing low-temperature lithium deposition. Furthermore, even if the battery cells within the storage compartment experience thermal runaway and combustion, the energy storage cabinet can contain the combustion internally, preventing ignition of adjacent energy storage cabinets and preventing further damage.

[0024] In a specific implementation, two adjacent aerogel layers are fastened using ceramic screws or Kevlar wire. The thickness of the aerogel layer is 1 to 10 cm. The thermal conductivity of the aerogel layer does not exceed 0.021 W / (m·K). The aerogel is SiO2 aerogel, and the thickness of the aerogel coating is 2 to 3 mm. In this utility model, the parameters of the aerogel material and the performance of the energy storage cabinet are as follows:

[0025] Table 1

[0026]

[0027] In some embodiments, as Figure 1 and 2 As shown, within the gap, the surfaces of the inner and outer walls on opposite sides are each provided with multiple slots and inserts. The slots on the inner wall correspond one-to-one with the slots on the outer wall, and the inserts can be inserted simultaneously into the slots on the inner and outer walls on opposite sides, allowing the inserts to be positioned perpendicular to the planes of the inner and outer walls. The inserts reinforce the cabinet walls, preventing damage to the aerogel material layer that could affect its thermal insulation and fire resistance. They also reinforce the cabinet. Even if the chemical ion batteries inside the cabinet burn, the inserts can maintain the cabinet's original shape as much as possible, preventing it from collapsing and spreading the fire to other nearby energy storage cabinets.

[0028] In some embodiments, as Figure 3 and 4 As shown, one side edge of the inner wall 1 is bent in a direction away from the accommodating compartment and then continues to extend to form a connecting end I 7; one side edge of the outer wall 2 is bent in a direction close to the accommodating compartment and then continues to extend to form a connecting end II 8; the connecting end II is located on the side opposite to the connecting end I; a slide groove I 9 is provided on the side surface of the outer wall facing the inner wall, and the position of the slide groove I corresponds to the position of the connecting end I, so that the connecting end I can be inserted into the slide groove I; at the same time, a slide groove II 10 is provided on the side surface of the inner wall facing the outer wall, and the position of the slide groove II corresponds to the position of the connecting end II, so that the connecting end II can be inserted into the slide groove II. This structure is used in conjunction with the above-mentioned plug-in plate and slot. Since the connection end I and the connection end II are located on opposite sides of the inner wall and the outer wall, respectively, the other opposite sides of the inner wall and the outer wall can be connected using the plug-in plate and the slot. This can seal the gap between the inner wall and the outer wall, and can further reinforce the structure of the frame, so as to keep the energy storage frame intact as much as possible when the battery in the storage compartment burns or explodes, and avoid the fire from spreading to other energy storage cabinets.

[0029] In some embodiments, the edge of the combination layer is stepped, and two adjacent combination layers are connected by biting the stepped edges. This design can ensure that there is no gap between the two adjacent combination layers, and any two adjacent combination layers can be perfectly bitten, so that no gap is formed between the two combination layers, thereby ensuring the thermal insulation effect of the combination layer.

[0030] The present invention is not limited to the above-mentioned embodiments. Any structure that is the same as or similar to the above-mentioned embodiments of the present invention is within the protection scope of the present invention.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An aerogel energy storage cabinet, comprising a cabinet body and a cabinet door, wherein the cabinet body has a storage compartment for storing batteries; a side surface of the cabinet body is provided with an opening, the opening being in communication with the storage compartment; the cabinet door is connected to the cabinet body and can move relative to the cabinet body to open or close the opening; characterized in that: The cabinet wall of the cabinet comprises an inner wall (1) and an outer wall (2), wherein the inner wall is located inside the cabinet and faces the side of the storage bin, and the outer wall is located on the outer surface of the cabinet and faces the side of the cabinet away from the storage bin, and a gap is provided between the inner wall and the outer wall; an aerogel material combination layer is provided in the gap, and the combination layer is composed of five aerogel material layers (3), and the aerogel material layers are arranged in sequence from the side close to the storage bin to the side away from the storage bin, the aerogel material layer close to the storage bin is fixedly connected to the inner wall, and the aerogel material layer away from the storage bin is fixedly connected to the outer wall; the surface of the inner wall facing the storage bin and the surface of the outer wall facing away from the storage bin are both coated with an aerogel coating material (4).

2. The aerogel energy storage cabinet according to claim 1, characterized in that: Two adjacent layers of aerogel material are fastened by ceramic screws or Kevlar wires.

3. The aerogel energy storage cabinet according to claim 1, characterized in that: In the gap, the surfaces of the inner wall and the outer wall on opposite sides are respectively provided with a plurality of slots (5) and inserting plates (6), the slots on the inner wall and the slots on the outer wall being arranged in a one-to-one correspondence, and the opposite sides of the inserting plates can be respectively inserted into the slots on the inner wall and the outer wall at the same time, so that the inserting plates are arranged in a direction perpendicular to the plane where the inner wall and the outer wall are located.

4. The aerogel energy storage cabinet according to claim 1, characterized in that: The thickness of the aerogel material layer is 1-10 cm.

5. The aerogel energy storage cabinet according to claim 1, characterized in that: The thermal conductivity of the aerogel material layer does not exceed 0.021 W / (m·K).

6. The aerogel energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet is also provided with a cooling device for maintaining a stable temperature in the storage compartment of the energy storage cabinet.

7. The aerogel energy storage cabinet according to claim 1, characterized in that: One side edge of the inner wall is bent in a direction away from the storage bin and then continues to extend to form a connection end I (7); one side edge of the outer wall is bent in a direction close to the storage bin and then continues to extend to form a connection end II (8); the connection end II is located on the side opposite to the connection end I; a slide groove I (9) is provided on the surface of the outer wall facing the inner wall, and the position of the slide groove I corresponds to the position of the connection end I, so that the connection end I can be inserted into the slide groove I; at the same time, a slide groove II (10) is provided on the surface of the inner wall facing the outer wall, and the position of the slide groove II corresponds to the position of the connection end II, so that the connection end II can be inserted into the slide groove II.

8. The aerogel energy storage cabinet according to claim 1, characterized in that: The edges of the combined layers are in a step-like shape, and two adjacent combined layers are connected by biting the stepped edges.

Images