Fireproof explosion venting side-opening energy storage box

Abstract

The utility model discloses a fireproof explosion venting side-opening energy storage box which comprises a box body, a battery cabin is arranged in the box body, a plurality of battery clusters are arranged in the battery cabin, one side or two sides of the box body are open, stand columns are arranged between the battery clusters on the open side of the box body, and a plurality of box side plates are arranged on the open face of the box body. The peripheries of the box side plates are detachably installed on the two corresponding adjacent stand columns and the frame above and below the door opening through anti-explosion bolts, and fireproof expansion rubber strips are arranged in the gaps between the box side plates and the frame. According to the utility model, the side door is designed into a detachable structure, thereby facilitating the installation of a structural reinforcer at the door opening part, facilitating the overall use as an explosion venting plate group, facilitating the filling of fireproof materials, improving the structural strength at the door opening part of the energy storage box, the fireproof performance of the box side and the explosion venting performance of the box body, and releasing the spatial layout of the energy storage box. The cost of the side opening door structure is reduced; the noose of the box side door is additionally arranged, so that secondary damage after explosion venting is greatly reduced; and the fireproof expansion adhesive tape is additionally arranged at the gap, so that the fireproof performance of the side door is improved.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and more specifically, it relates to a fireproof and explosion-proof side-opening energy storage box. Background Technology

[0002] Energy storage systems are electrical devices that convert electrical energy into chemical energy, store it, and release it as needed. They are mainly used in new energy sources, distributed generation, and peak shaving and valley filling of power grids. Containerized energy storage systems integrate energy storage batteries within a container, enabling rapid integration and deployment. With the development of energy storage technology, the number of energy storage units in containerized energy storage devices is constantly increasing, as is the energy storage density, which also brings greater risks. Current technologies generally address explosion venting by opening vents on the side or top. When thermal runaway occurs in the battery cells inside the energy storage container, causing deflagration or explosion (when the pressure inside the container reaches the detonation pressure of the vent plate), the vent plate will trigger a switch and open the vent opening to release the internal explosion pressure, preventing excessive internal pressure from causing the container to burst open and reducing environmental damage caused by the explosion. To improve safety standards, existing energy storage containers are generally equipped with explosion relief panels. To ensure the panels can open under pressure, they are typically lightweight and have low strength. Because these panels are directly exposed to the external environment, they are prone to rapid aging and even failure due to wind, snow accumulation, sandstorms, solar radiation, and maintenance loads. However, this side-door structure has many problems and limitations:

[0003] ① In order to facilitate the loading, unloading and maintenance of internal batteries, traditional liquid-cooled energy storage boxes often adopt a double-sided or single-sided opening structure for shipping doors. The energy storage box must open a large-span side door on the side, and it is impossible to install reinforcements such as columns inside the door opening, resulting in large deformation of the box body.

[0004] ② Traditional side-opening doors generally use shipping container doors, which reduces the structural strength of the container, increases the overall weight, and affects the effective load capacity. The side doors have a very low usage rate in the later operation and maintenance process and account for a large part of the container cost.

[0005] ③ The locking bar used in the traditional side-opening door takes up space inside the box, resulting in a considerable amount of space being wasted. At the same time, the gap between the door panels is large, which cannot meet fire protection requirements. Generally, it can only maintain a fire protection time of about 1 hour. The explosion venting area is too small, and the explosion venting capacity is limited.

[0006] ④ The enclosure deforms significantly when fully loaded with batteries, requiring a taller base frame, which affects the height of the enclosure.

[0007] ⑤ In order to meet a certain explosion relief capacity, firstly, pressure relief ports are set in limited locations on the side of the enclosure. These ports are not only small, but also require rain covers to ensure waterproof performance. The rain covers protrude from the enclosure, which is not conducive to transportation and use. Secondly, explosion relief plates are set on the top, which affects the overall sealing and height space.

[0008] Therefore, it is necessary to redesign or improve the structure to address the aforementioned defects. Utility Model Content

[0009] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fireproof and explosion-proof side-opening energy storage box to solve one or more of the above-mentioned problems.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A fireproof and explosion-proof side-opening energy storage box includes a box body, a battery compartment inside the box body, a plurality of battery clusters arranged in the battery compartment, the box body being open on one or both sides, a column being provided between adjacent battery clusters on the open side of the box body, a plurality of box side panels being provided on the open surface of the box body, the box side panels being detachably installed around the perimeter to the corresponding two adjacent columns and the frame above and below the door opening by explosion-proof bolts, and fireproof expansion strips being provided at the gap between the box side panels and the frame.

[0012] Furthermore, the side panel of the box includes a connected outer door panel and an inner sealing panel. The inner sealing panel has a U-shaped cross-section, and the end edge of the outer door panel extends outward relative to the end edge of the inner sealing panel. A fire-resistant insulation layer is filled between the inner sealing panel and the outer door panel.

[0013] Furthermore, the distance between the inner sealing plate and the nearest column matches the size of the sealing gasket or fireproof strip.

[0014] Furthermore, the column is a square tube or a bent sheet metal part, and corresponding through holes are provided on both the column and the side plate of the box. The explosion-proof traction cable is passed through and fixed between the side plate of the box and the column.

[0015] Furthermore, at least two of the explosion-proof traction cables are provided on each of the box side panels.

[0016] Furthermore, a matching through hole is separately opened on the side plate of the box corresponding to the air inlet or air outlet of the box.

[0017] In summary, this utility model has the following beneficial effects: by designing the side door as a detachable flange-faced box-shaped steel sheet metal door, the locking rod structure is eliminated, facilitating the installation of structural reinforcements at the door opening. The entire structure can be used as an explosion venting assembly, making it easy to fill with fireproof material. Without affecting the original use and function, it improves the structural strength at the energy storage box door opening, the fire resistance of the box side, and the explosion venting performance of the box body, freeing up space in the energy storage box layout and reducing the cost of the side-opening door structure. The addition of a winch to the side door significantly reduces secondary injuries after explosion venting. The design of individual side door openings, combined with the air duct design, improves overall integrity. The addition of fireproof expansion strips at the gaps enhances the fire resistance of the side-opening door. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of one embodiment of the present utility model;

[0019] Figure 2 A side view of one embodiment of the present invention;

[0020] Figure 3 for Figure 2 Sectional view at point AA;

[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the side panel of the box in one embodiment of the present invention;

[0023] Figure 6 for Figure 5 Enlarged diagram of point C in the middle.

[0024] In the diagram: 1. Box body; 2. Battery compartment; 3. Battery cluster; 4. Column; 5. Box side panel; 6. Explosion-proof bolts; 7. Electrical compartment; 8. Water-cooled unit compartment; 9. Outer door panel; 10. Inner sealing panel; 11. Fire-resistant insulation layer; 12. Fire-resistant expansion strip. Detailed Implementation

[0025] Example:

[0026] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0027] A fireproof and explosion-proof side-opening energy storage box, such as Figure 1 and Figure 3As shown, the main body is a conventional structure box 1. One end of the interior is the battery compartment 2, which occupies most of the space of the box 1. The other end has an electrical compartment 7 and a water-cooled unit compartment 8 arranged side by side, which are used to house control equipment and water-cooling equipment, respectively. The control equipment is connected to the main electrical components of the energy storage box and plays a role in control and regulation. The water-cooling equipment is connected to the cooling pipes to provide cooling for the battery. The specific structure and layout are not described in detail.

[0028] like Figure 3 and Figure 4 As shown, the battery compartment 2 inside the box 1 is arranged with several battery clusters 3. Structural connectors are provided between adjacent battery clusters 3 to strengthen the overall structure. At the position corresponding to the door opening on the outermost side, a column 4 is added between adjacent battery clusters 3. The column 4 is a square tube or a bent sheet metal part.

[0029] like Figure 1 and Figure 2 As shown, the enclosure 1 is open on one or both sides, with corresponding door openings. Each door opening contains several side panels 5. Traditional side-opening energy storage boxes require large-span side doors for convenient battery installation and maintenance. These large door panels mean that the structure near the door opening cannot have any protruding parts, which would hinder the installation of the side door. This means that abrupt columns 4 cannot be installed, as this would affect the flatness of the side door and increase installation difficulty. Furthermore, the door opening location cannot accommodate reinforcing components such as columns 4, easily leading to deformation of the enclosure 1. Therefore, the side door openings are divided into sections, and multiple side panels 5 are used to form a cohesive unit, creating space for the columns 4, strengthening the structure of the enclosure 1, and preventing easy deformation.

[0030] like Figure 3 and Figure 4As shown, the side panel 5 is a box-shaped steel sheet metal door with a flange surface. Therefore, it is detachably fixed to the corresponding two adjacent columns 4 and the frame above and below the door opening by explosion-proof bolts 6. This design can directly eliminate the locking bar area of ​​conventional energy storage boxes, preventing the locking bar from occupying side space and compressing the internal width of the box 1, thereby effectively increasing the actual usable space inside the box 1. Preferably, the number of side panels 5 on each side is the same as the number of battery clusters 3, which can be adjusted according to the size and partitioning of the internal battery compartment 2. Corresponding through holes are opened on the columns 4 and the side panels 5, and the explosion-proof traction cables are connected and fixed between the side panels 5 and the columns 4 through the through holes. At least two explosion-proof traction cables are provided on each side panel 5, preferably diagonally arranged at the inner end of the side panel 5. In this way, all the side panels 5 on each side can be used as an explosion-proof plate, increasing the overall explosion-proof surface area and greatly improving the explosion-proof capability. In the event of an explosion, the explosion venting components can deform or be replaced quickly, causing the side panel 5 of the box to burst open rapidly, thus completing the explosion venting. When the side panel 5 flies outward, since the explosion venting traction cable is fixed to the column 4, the side panel 5 will be limited by the tension of the explosion venting traction cable, and the distance it flies out is limited. After the impact force passes, it will naturally fall down, greatly reducing the possibility of secondary injury.

[0031] The air inlet or outlet is pre-drilled on the enclosure 1, with the side panel 5 installed at the corresponding location. This, in conjunction with the ductwork setup, assists in forced ventilation according to the fire protection system's detection and early warning requirements. The side panel 5 is a flange-faced, box-shaped steel sheet metal door structure. A sealing gasket is added between the side panel 5 and the enclosure 1, specifically at the gap between the frame of the door opening of enclosure 1 and the mating edge of the side panel 5, to improve sealing.

[0032] like Figure 5 and Figure 6 As shown, the side panel 5 of the enclosure includes an outer door panel 9 and an inner sealing panel 10 welded together. The inner sealing panel 10 has a U-shaped cross-section, and the end edge of the outer door panel 9 extends outward relative to the end edge of the inner sealing panel 10. That is, the dimension of the outer door panel 9 in the vertical plane is larger than that of the inner sealing panel 10, so that the extra part can be provided with flange slots for easy installation. A hollow cavity is formed between the inner sealing panel 10 and the outer door panel, and the cavity is filled with a fire-resistant insulation layer 11. The fire-resistant insulation layer 11 is one or more of rock wool, glass wool, mineral wool, and aluminum silicate wool, or other fire-resistant materials can be selected. There is generally a gap of 6-10mm between the inner sealing panel 10 and the frame. The specific gap needs to be adjusted according to the actual situation. In general, this gap should match the size of the sealing gasket or fireproof strip. Fireproof expansion strips 12 are pasted or embedded in this gap. When the fire spreads, they automatically expand and seal the gap, improving the fire resistance. This can achieve the fireproof effect of the side door, and the structure is simple, low-cost, space-saving, and high-strength.

[0033] Therefore, the side panel 5 of the enclosure can be used simultaneously as a fire door, an explosion relief door, a sealing door, and an enclosure side door.

[0034] It should be noted that this specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A fireproof and explosion-proof side-opening energy storage box, comprising a box body (1), wherein a battery compartment (2) is provided inside the box body (1), and a plurality of battery clusters (3) are arranged inside the battery compartment (2), wherein the box body (1) is open on one or both sides, characterized in that: The box body (1) has a column (4) between adjacent battery clusters (3) on the open side. The box body (1) has several box side panels (5). The box side panels (5) are detachably installed to the corresponding two adjacent columns (4) and the frame above and below the door opening by explosion-proof bolts (6). Fireproof expansion strips (12) are provided at the gap between the box side panels (5) and the frame.

2. The fireproof and explosion-proof side-opening energy storage box according to claim 1, characterized in that: The box side panel (5) includes a connected outer door panel (9) and an inner sealing panel (10). The inner sealing panel (10) has a U-shaped cross section. The end of the outer door panel (9) extends outward relative to the end of the inner sealing panel (10). A fire-resistant insulation layer (11) is filled between the inner sealing panel (10) and the outer door panel (9).

3. The fireproof and explosion-proof side-opening energy storage box according to claim 2, characterized in that: The distance between the inner sealing plate (10) and the nearest column (4) matches the size of the sealing gasket or fireproof strip.

4. The fireproof and explosion-proof side-opening energy storage box according to claim 2, characterized in that: The column (4) is a square tube or a bent sheet metal part. The column (4) and the box side plate (5) are provided with corresponding through holes. The box side plate (5) and the column (4) are connected and fixed with explosion-proof traction cable.

5. The fireproof and explosion-proof side-opening energy storage box according to claim 4, characterized in that: At least two explosion-proof traction winches are provided on each of the box side plates (5).

6. The fireproof and explosion-proof side-opening energy storage box according to claim 1, characterized in that: A matching through hole is provided on the side plate (5) of the box that is installed at the air inlet or air outlet of the box (1).

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