Energy storage box with side opening door

Abstract

The invention discloses a side-opening-door energy storage box which comprises a box body, a battery compartment is arranged in the box body, battery clusters are arranged in the battery compartment, one side or two sides of the box body are open, stand columns are arranged between the adjacent 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 portions, above and below the door opening, of the frame through anti-explosion bolts. The side door is designed to be the detachable flange face box-shaped steel structure metal plate door, a lock rod structure is omitted, structural reinforcers at the door opening position are convenient to install, the whole or part of the door opening position serves as an explosion venting plate set to be used, fireproof materials are convenient to fill, the structural strength, fireproof performance and explosion venting performance of the energy storage box are improved, and the space layout of the energy storage box is released; 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; individual box side door opening is matched with the air duct design, so that the integrality is better; a sealing gasket is additionally arranged at the gap, so that the sealing performance of the side door is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of containers, and more particularly to a side-opening door energy storage box. Background Art

[0002] The energy storage system is an electrical device that converts electrical energy into chemical energy for storage and releases it as required. It is mainly used in new energy, distributed power generation, and peak shaving and valley filling of power grids. The containerized energy storage system integrates the energy storage battery in the container, which enables the rapid integration of the energy storage system and rapid commissioning. With the development of energy storage technology, the number of energy storage units in container energy storage equipment continues to increase, the energy storage density is getting higher and higher, and the risk is getting greater. The existing technology generally uses explosion-proof openings on the side or top to solve the explosion-proof problem. When the battery cells inside the energy storage container experience thermal runaway, causing deflagration or explosion (the pressure inside the energy storage container reaches the detonation pressure of the explosion-proof plate), the explosion-proof plate will trigger the switch and open the explosion-proof opening to release the explosion pressure inside the box, avoid excessive pressure inside the box causing the box to explode, and reduce damage to the surrounding environment caused by the explosion. In order to improve safety standards, existing energy storage containers are generally equipped with explosion venting panels. In order to enable the explosion venting panels to open under the explosion venting pressure, the explosion venting panels are usually of small mass and low strength. Since the explosion venting panels are directly exposed to the external environment, they are prone to rapid aging and even damage and failure under the effects of wind and snow accumulation, sand and dust erosion, solar radiation, and maintenance loads. However, this side door structure has many problems and limitations:

[0003] ① In order to facilitate loading and unloading and maintenance of internal batteries, traditional liquid-cooled energy storage boxes mostly use double-sided or single-sided shipping door structures. The energy storage box must have a large-span side door on the side, and reinforcements such as columns cannot be set in the door opening, resulting in large deformation of the box body;

[0004] ② Traditional side doors generally use shipping container door leaves, which reduce the structural strength of the container, increase the overall deadweight, and affect the effective load. The side doors are rarely used in the later operation and maintenance process, accounting for the majority of the container cost;

[0005] ③ The lock rod used on the door leaf of the traditional side-opening door occupies the space inside the box, resulting in considerable space being wasted. At the same time, the gap between the door leaves is large and cannot meet the fire protection requirements. Generally, the fire protection time can only be maintained for about 1 hour. The explosion relief area is too small and the explosion relief capacity is limited;

[0006] ④ After fully loaded with batteries, the box body is greatly deformed, and the bottom frame needs to be raised, which affects the height space of the box body;

[0007] ⑤ In order to meet a certain explosion-relief capacity, one is to set a pressure relief port at a limited position on the side of the box. The pressure relief port is not only small, but also a rain cover must be installed to ensure waterproof performance. The rain cover protrudes from the box, which is not conducive to transportation and use; the second is to set an explosion-relief plate on the top, which affects the overall sealing and height space.

[0008] Therefore, it is necessary to redesign or improve the structure with respect to the above-mentioned defects. Summary of the invention

[0009] In view of the deficiencies in the prior art, an object of the present invention is to provide a side-opening door energy storage box to solve one or more of the above-mentioned problems.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A side-opening energy storage box comprises a box body, a battery compartment is arranged in the box body, a plurality of battery clusters are arranged in the battery compartment, the box body is open on one side, columns are arranged between adjacent battery clusters on the open side of the box body, a plurality of box side panels are arranged on the open surface of the box body, and the box side panels are detachably mounted to two adjacent columns and frames above and below the door opening by explosion-proof bolts on all sides.

[0012] Furthermore, both sides of the box body are open, and the open surface of each side of the box body is provided with the fixed columns and the detachable box side panels, and the number of the box side panels on each side is consistent with the number of the battery clusters.

[0013] Furthermore, an electrical compartment and a water-cooled unit compartment are arranged side by side in the box body. A control device is arranged in the electrical compartment, and the control device is electrically connected to the electrical components in the box body. A water-cooled unit compartment is provided with a water-cooled device, and the water-cooled device is connected to the cooling pipe.

[0014] Furthermore, the box side panel includes a connected door outer panel and an inner sealing panel, the inner sealing panel is a U-shaped cross-section, the end edge of the door outer panel is arranged to extend outwardly relative to the end edge of the inner sealing panel, and the space between the inner sealing panel and the door outer panel is filled with fire-resistant insulation material.

[0015] Furthermore, the refractory heat-insulating material is one or more of rock wool, glass wool, mineral wool, and aluminum silicate wool.

[0016] Furthermore, the column is a square tube or a bent sheet metal part, and corresponding holes are provided on the column and the box side plate, and an explosion-relief traction rope is connected and fixed between the box side plate and the column.

[0017] Furthermore, at least two explosion-relief traction ropes are arranged on each of the box side panels.

[0018] Furthermore, a matching through hole is separately provided on the box side panel installed corresponding to the air inlet or air outlet of the box body.

[0019] Furthermore, the box side panel is a flange-surface box-shaped steel sheet metal door structure as a whole, and a sealing gasket is provided between the gap between the box side panel and the box body.

[0020] Furthermore, the box side panels are simultaneously used as fire doors, explosion-proof doors, sealing doors, and box side doors.

[0021] In summary, the present invention has the following beneficial effects: by designing the side door as a detachable flange-surface box-shaped steel sheet metal door, the locking rod structure is eliminated, which facilitates the installation of structural reinforcements at the door opening, and the whole is used as an explosion-proof plate group, which is convenient for filling with fireproof materials. On the basis of not affecting the original use and function, the structural strength of the door opening of the energy storage box, the fire resistance of the box side, and the explosion-proof performance of the box body are improved, the spatial layout of the energy storage box is released, and the cost of the side door structure is reduced; the addition of a noose to the side door of the box greatly reduces the secondary damage after explosion relief; the opening of the side door of some boxes is matched with the air duct design, and the integrity is better; sealing gaskets are added at the gaps to improve the sealing of the side door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the side structure of an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Sectional view at AA;

[0025] Figure 4 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0026] Figure 5 A schematic structural diagram of a box side plate in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of point C in the middle.

[0028] In the figure: 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. Door outer panel; 10. Inner sealing panel; 11. Fire-resistant insulation material. DETAILED DESCRIPTION

[0029] Example:

[0030] The following is combined with Figure 1-6The present invention is described in further detail.

[0031] A side-opening energy storage box, such as Figure 1 and Figure 3 As shown, the main body is a box body 1 of conventional structure, one end of the interior is a battery compartment 2, which occupies most of the space of the box body 1, and the other end is an electrical compartment 7 and a water-cooling unit compartment 8 arranged side by side, which are respectively used to set up control equipment and water-cooling equipment. The control equipment is connected to the main electrical components of the energy storage box to play a role in control and regulation. The water-cooling equipment is connected to the cooling pipe to provide a cooling function for the battery. The specific structure and arrangement are not repeated here.

[0032] like Figure 3 and Figure 4 As shown, a battery compartment 2 in the box body 1 is arranged with a plurality of battery clusters 3, and structural connectors for strengthening the integrity are arranged between the front and rear adjacent battery clusters 3, and columns 4 are added between adjacent battery clusters 3 at the outermost positions corresponding to the door openings, and the columns 4 are square tubes or bent sheet metal parts.

[0033] like Figure 1 and Figure 2 As shown, the box 1 is open on one or both sides and is provided with corresponding door openings, and a number of box side panels 5 are provided in each side door opening. Because the traditional side-opening energy storage box must open a large-span side door on the side to facilitate battery installation and maintenance, the large-sized side door panels mean that it is necessary to ensure that the structure near the door opening has no protruding parts, which will hinder the installation of the side door, that is, it is not possible to set abrupt columns 4, which will affect the flatness and installation difficulty of the side door, and the door opening position cannot be set with columns 4 and other reinforcements, which easily causes the box 1 to deform. Now the side door opening is divided into sections, and a plurality of box side panels 5 are set to form a match, leaving space for the setting of columns 4, strengthening the structure of the box 1, and preventing easy deformation.

[0034] like Figure 3 and Figure 4As shown, the box 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 along its four sides by explosion-proof bolts 6. This design can directly eliminate the locking rod area of ​​the conventional energy storage box, prevent the locking rod from occupying the side space, and squeeze the internal width of the box body 1, so as to effectively increase the actual use space in the box body 1. Preferably, the number of box side panels 5 on each side is consistent with the number of battery clusters 3, and can be adjusted according to the size and partition of the internal battery compartment 2. Corresponding perforations are respectively provided on the columns 4 and the box side panels 5, and the explosion-relief traction rope is connected and fixed between the box side panels 5 and the columns 4 by means of the perforations. At least two explosion-relief traction ropes are arranged on each box side panel 5, preferably diagonally arranged at the inner end of the box side panel 5. In this way, all the box side panels 5 on each side can be used as explosion-relief panels as a whole, and the range of the entire explosion-relief surface becomes larger, which greatly improves the explosion-relief capacity. When an explosion occurs, the explosion relief components can be quickly deformed or replaced, causing the box side panels 5 to explode quickly, thereby completing the explosion relief. When the box side panels 5 fly out, since the explosion relief traction rope is fixed on the column 4, the box side panels 5 will be limited by the tension of the explosion relief traction rope, and the flying distance is limited. After the impact force is over, they will naturally fall down, greatly reducing the possibility of secondary damage.

[0035] The position where the air inlet or outlet is opened on the box body 1 is opened in advance relative to the box side panel 5 installed there, and cooperates with the setting of the air duct to assist forced exhaust according to the detection and early warning requirements of the fire protection system. The box side panel 5 is a steel sheet metal door structure with a flange surface box shape, and a sealing gasket is added between the gap with the box body 1 to improve the sealing performance.

[0036] like Figure 5 and Figure 6 As shown, the box side panel 5 includes an outer door panel 9 and an inner sealing panel 10 welded together. The inner sealing panel 10 is a U-shaped cross-section. The end edge of the outer door panel 9 is arranged outwardly relative to the end edge of the inner sealing panel 10, that is, the size of the outer door panel 9 in the vertical plane is larger than the inner sealing panel 10. In this way, a hole groove of the flange surface can be set in the extra part to facilitate installation. A hollow cavity is formed between the inner sealing panel 10 and the outer door panel, and the cavity is filled with a refractory heat-insulating material 11. The refractory heat-insulating material 11 is one or more of rock wool, glass wool, mineral wool, and aluminum silicate wool. Other refractory materials can also be used. In this way, the fire prevention effect at the side door can be achieved, and the structure is also simple, low cost, small space occupation, and high strength.

[0037] Therefore, the box side panel 5 can be used as a fire door, explosion-proof door, sealing door, and box side door at the same time.

[0038] It should be noted that this specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A side-opening energy storage box, comprising a box body (1), wherein a battery compartment (2) is arranged in the box body (1), wherein a plurality of battery clusters (3) are arranged in the battery compartment (2), and wherein the box body (1) is open on one side, and is characterized in that: A column (4) is provided between adjacent battery clusters (3) on the open side of the box body (1), and a plurality of box side panels (5) are provided on the open surface of the box body (1). The box side panels (5) are detachably mounted on the four sides corresponding to two adjacent columns (4) and frames above and below the door opening via explosion-proof bolts (6).

2. The side-opening door energy storage box according to claim 1, characterized in that: Both sides of the box body (1) are open, and the open surface of each side of the box body (1) is provided with a fixed column (4) and a detachable box side panel (5), and the number of the box side panels (5) on each side is consistent with the number of the battery clusters (3).

3. The side-opening door energy storage box according to claim 1, characterized in that: An electrical compartment (7) and a water-cooling unit compartment (8) are also arranged side by side in the box body (1); a control device is arranged in the electrical compartment (7), and the control device is electrically connected to the electrical components in the box body (1); a water-cooling device is arranged in the water-cooling unit compartment (8), and the water-cooling device is connected to the cooling pipe.

4. The side-opening door energy storage box according to claim 1, characterized in that: The box side panel (5) includes a connected door outer panel (9) and an inner sealing panel (10), wherein the inner sealing panel (10) is a U-shaped cross-section, and the end edge of the door outer panel (9) is arranged to extend outward relative to the end edge of the inner sealing panel (10), and a fire-resistant heat-insulating material (11) is filled between the inner sealing panel (10) and the door outer panel (9).

5. The side-opening door energy storage box according to claim 4, characterized in that: The fire-resistant heat-insulating material (11) is one or more of rock wool, glass wool, mineral wool, and aluminum silicate wool.

6. The side-opening door energy storage box according to claim 4, 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 both provided with corresponding through holes. The explosion relief traction rope is connected and fixed between the box side plate (5) and the column (4).

7. The side-opening door energy storage box according to claim 6, characterized in that: At least two explosion-relief traction ropes are arranged on each of the box side panels (5).

8. The side-opening door energy storage box according to claim 1, characterized in that: The box side panel (5) installed corresponding to the air inlet or air outlet of the box body (1) is separately provided with a matching through hole.

9. The side-opening door energy storage box according to claim 1, characterized in that: The box side plate (5) is a flange-surface box-shaped steel sheet metal door structure as a whole, and a sealing gasket is provided between the gap between the box side plate (5) and the box body (1).

10. The side-opening door energy storage box according to claim 1, characterized in that: The box side panel (5) is used as a fire door, an explosion-proof door, a sealing door, and a box side door at the same time.

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