Flame-retardant storage device for lithium battery raw materials

Abstract

The utility model relates to the technical field of lithium battery production auxiliary equipment, in particular to a flame-retardant storage device for lithium battery raw materials, which comprises an inner box body, a left inner box door and a right inner box door which are mutually symmetrical are hinged on the front side face of the inner box body, a gas suction pump is arranged outside the inner box body, and a suction pipe is fixedly mounted at the gas inlet end of the gas suction pump. The suction pipe extends into the inner box body, a nitrogen generator and a gas delivery pump are further arranged outside the inner box body, the gas inlet end of the gas delivery pump is communicated with the nitrogen generator through a gas inlet pipe, a gas outlet pipe is fixedly installed at the gas outlet end of the gas delivery pump, and a left uniform distribution pipe and a right uniform distribution pipe are fixedly installed on the gas outlet pipe; the two uniform distribution pipes are fixedly installed on the inner walls of the left side and the right side of the inner box body respectively, and air outlet ends are fixedly installed at the bottom ends of the uniform distribution pipes and fixedly installed on the bottom wall of the inner box body. The lithium battery has the advantage of flame-retardant storage, and combustion reaction of raw materials of the lithium battery is effectively inhibited.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for lithium battery production, and more specifically, to a flame-retardant storage device for lithium battery raw materials. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries have been widely used in electric vehicles, energy storage systems and other fields due to their advantages such as high energy density and long cycle life. In the production process of lithium batteries, many raw materials such as lithium salts, organic solvents and electrode active materials are flammable, explosive or chemically active, and their storage safety is crucial. Once a fire or explosion occurs, it will not only cause serious economic losses, but may also threaten the safety of people's lives and the surrounding environment.

[0003] Currently, lithium battery raw materials are mostly stored in ordinary storage containers or warehouses, with only basic fire-fighting facilities such as fire extinguishers and fire hydrants installed on the outside. Ordinary storage containers usually only have simple sealing functions and cannot effectively isolate air or replace the gas inside the container to reduce the oxygen concentration and create an inert gas environment. When the raw materials inside leak or volatilize, they mix with air to form a flammable mixture, which can easily cause combustion or explosion when exposed to a source of ignition, thus failing to achieve the effect of flame-retardant storage. Utility Model Content

[0004] The purpose of this invention is to provide a flame-retardant storage device for lithium battery raw materials, so as to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flame-retardant storage device for lithium battery raw materials includes an inner casing. Two symmetrical inner casing doors are hinged to the front side of the inner casing. A gas suction pump is installed outside the inner casing. A suction pipe is fixedly installed at the inlet end of the gas suction pump, extending into the inner casing. A nitrogen generator and a gas delivery pump are also installed outside the inner casing. The inlet end of the gas delivery pump is connected to the nitrogen generator via an inlet pipe. An outlet pipe is fixedly installed at the outlet end of the gas delivery pump. Two evenly distributed pipes are fixedly installed on the outlet pipe, respectively fixedly installed on the left and right inner walls of the inner casing. An outlet end is fixedly installed at the bottom end of each evenly distributed pipe, and the outlet end is fixedly installed on the bottom wall of the inner casing.

[0007] Preferably, an air inlet hood is fixedly installed at the air inlet end of the suction pipe, and the air inlet hood is located at the top of the inner box.

[0008] Preferably, a horizontal air outlet is provided on the end face of the air outlet, and a plurality of upward-facing air outlets are provided on the top face of the air outlet.

[0009] This design allows the gas inside the chamber to be blown more effectively toward one side of the suction hood, promoting better exhaust of the internal air by the gas suction pump.

[0010] Preferably, an outer box is provided outside the inner box, and two symmetrical outer box doors are hinged to the front side of the outer box.

[0011] Preferably, a plurality of support columns are fixedly installed between the inner box and the outer box, and the support columns are used for supporting the inner box.

[0012] Preferably, a plurality of mesh placement racks are fixedly installed on the inner wall of the inner box, and the mesh placement racks are mesh-shaped plate structures.

[0013] Preferably, the bottom of the outer casing is fixedly equipped with multiple support legs, the height of which is between 6cm and 10cm.

[0014] Preferably, both the inner and outer boxes are provided with sealing gaskets, and both the inner and outer boxes are provided with corresponding door locks.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting up a gas suction pump, a nitrogen generator, and a gas delivery pump, uses a suction pipe and a suction hood to draw air from the inner chamber. After the nitrogen generator produces nitrogen, the nitrogen is evenly delivered to the inner chamber by the gas delivery pump, the outlet pipe, the distribution pipe, and the outlet end. This achieves the replacement of the gas in the inner chamber, reduces the oxygen concentration, and forms an inert gas environment, effectively inhibiting the combustion reaction of lithium battery raw materials, thereby improving the flame retardant performance of the storage device and reducing the risk of fire.

[0017] 2. This utility model achieves double sealing protection and structural stability by setting an outer box outside the inner box and using support columns to support the inner box. At the same time, sealing gaskets and door locks are set on the inner sides of the inner and outer boxes, and door locks are provided. The outer box further isolates the external environment, and the sealing gaskets and door locks ensure the airtightness of the box, preventing raw material leakage and the entry of outside air, thereby ensuring storage safety and avoiding the danger caused by raw material leakage.

[0018] 3. This utility model achieves efficient raw material storage and gas circulation by installing a mesh rack on the inner wall of the inner chamber and setting horizontal and upward-facing vents at the vent end. The mesh rack facilitates the storage of lithium battery raw materials and promotes gas flow. The special vent design at the vent end better guides the gas flow inside the chamber, allowing the gas to be effectively discharged by the gas suction pump, promoting uniform nitrogen distribution, ensuring a uniform and stable flame-retardant environment inside the chamber, and improving storage efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0021] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0022] The meanings of the labels in the diagram are as follows:

[0023] 10. Outer casing; 11. Inner casing; 12. Support column; 13. Mesh rack; 14. Support leg; 15. Inner door; 16. Outer door; 17. Sealing gasket;

[0024] 2. Gas suction pump; 20. Suction pipe; 21. Suction hood;

[0025] 3. Nitrogen generator; 30. Gas delivery pump; 31. Inlet pipe; 32. Outlet pipe; 33. Distribution pipe; 34. Outlet end; 341. Horizontal outlet; 342. Upward outlet. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3This utility model provides a technical solution: a flame-retardant storage device for lithium battery raw materials, including an inner box 10. Two symmetrical inner box doors 14 are hinged to the front side of the inner box 10. A gas suction pump 2 is installed outside the inner box 10. A suction pipe 20 is fixedly installed at the inlet end of the gas suction pump 2, extending into the inner box 10. A nitrogen generator 3 and a gas delivery pump 30 are also installed outside the inner box 10. The inlet end of the gas delivery pump 30 is connected to the nitrogen generator 3 via an inlet pipe 31. An outlet pipe 32 is fixedly installed at the outlet end of the gas delivery pump 30. Two uniformly distributed pipes 33 are fixedly installed on the left and right inner walls of the inner box 10, respectively. An outlet end 34 is fixedly installed at the bottom end of the uniformly distributed pipe 33 and fixedly installed on the bottom wall of the inner box 10. This allows the gas suction pump 2 to extract the air from the inner box 10. The nitrogen generated by the nitrogen generator 3 is evenly transported to the inner box 10 through the gas delivery pump 30 and various pipelines, thereby replacing the air in the inner box 10, effectively reducing the oxygen concentration in the inner box 10, forming an inert gas environment, inhibiting the combustion reaction of lithium battery raw materials, and greatly improving the flame retardant performance of the storage device.

[0028] like Figure 1 As shown, an air intake hood 21 is fixedly installed at the air inlet end of the suction pipe 20. The air intake hood 21 is located at the top of the inner box 10, which enables the air intake hood 21 to collect the gas at the top of the inner box 10 more efficiently, increasing the gas collection area. Together with the gas suction pump 2, it improves the suction efficiency, thereby accelerating the gas replacement speed in the inner box 10, rapidly reducing the oxygen content, and enhancing the flame retardant effect.

[0029] In this embodiment, a horizontal vent hole 341 is provided on the end face of the vent end 34, and a plurality of upward vent holes 342 are provided on the top surface of the vent end 34, so that nitrogen gas is sprayed out from different directions, which better blows the gas in the inner box 10 toward the side of the suction hood 21, promotes gas flow, forms a good gas circulation, and makes the air in the inner box 10 more smoothly discharged by the gas suction pump 2, ensuring that the nitrogen gas is evenly distributed in the entire inner box 10, and ensuring the stability of the flame-retardant environment.

[0030] like Figure 1 As shown, an outer casing 1 is provided outside the inner casing 10. Two symmetrical outer casing doors 15 are hinged to the front side of the outer casing 1. Multiple support columns 11 are fixedly installed between the inner casing 10 and the outer casing 1. The support columns 11 are used to support the inner casing 10, so that the outer casing 1 provides additional protection for the inner casing 10, enhances the overall structural strength and impact resistance of the device, and further isolates the external environment, reduces the impact of external factors on the lithium battery raw material storage environment, and improves storage safety.

[0031] It is worth noting that the outer casing 1 is made of high-strength stainless steel, which has good mechanical strength and corrosion resistance; the inner casing 10 is a flame-retardant and heat-insulating material layer, which is composed of ceramic fiber board and aerogel composite, which can effectively block heat transfer and flame spread, while reducing heat exchange between the inside and outside of the storage box.

[0032] like Figure 1 As shown, multiple mesh racks 12 are fixedly installed on the inner wall of the inner box 10. The mesh racks 12 have a mesh-like plate structure, which makes it convenient for the orderly storage of lithium battery raw materials, and does not hinder the flow of gas in the box, ensuring that nitrogen can be fully replaced with the air around the raw materials. At the same time, it is convenient for staff to store, retrieve and manage the raw materials.

[0033] like Figure 1 As shown, multiple support legs 13 are fixedly installed at the bottom of the outer casing 1. The height of the support legs 13 is between 6cm and 10cm, which keeps the storage device at a certain distance from the ground, facilitates air circulation at the bottom of the device, prevents ground moisture and stains from affecting the device, and makes it convenient for staff to clean and maintain the device, thereby improving the service life and safety of the device.

[0034] like Figure 1 As shown, sealing gaskets 16 are provided on the inner sides of both the inner door 14 and the outer door 15, and corresponding door locks are provided on both the inner door 14 and the outer door 15. This ensures that the sealing gaskets 16 fit tightly against the box when the door is closed, effectively preventing gas leakage and the entry of outside air, thus enhancing the sealing performance of the box. The door locks ensure that the door remains closed during storage, preventing accidental opening and further ensuring the stability and safety of the lithium battery raw material storage environment.

[0035] Finally, it should be noted that the gas suction pump 2, gas delivery pump 30, and nitrogen generator 3 involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the spare parts of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0036] When using the flame-retardant storage device for lithium battery raw materials of this utility model, first open the outer box door 15 and the inner box door 14, place the lithium battery raw materials on the mesh rack 12 on the inner wall of the inner box 10, arrange them in an orderly manner, and then close the inner box door 14 and the outer box door 15. Lock them with the door lock. At this time, the sealing gaskets 16 on the inner side of the inner box door 14 and the outer box door 15 are tightly attached to the box to ensure the airtightness.

[0037] Then, the gas suction pump 2 and the gas delivery pump 30 are started, and the nitrogen generator 3 is turned on at the same time. The gas suction pump 2 efficiently extracts the air in the inner box 10 through the suction pipe 20 and the suction hood 21 on the top. The nitrogen generated by the nitrogen generator 3 is sprayed out from the horizontal air outlet 341 and the upward air outlet 342 of the air outlet end 34 through the air inlet pipe 31, the gas delivery pump 30, the air outlet pipe 32, and the distribution pipe 33. The nitrogen sprayed in different directions promotes the flow of gas in the inner box 10, accelerates the extraction of air, realizes gas replacement, reduces the oxygen concentration, and forms a flame-retardant inert gas environment.

[0038] During storage, if it is necessary to inspect or retrieve raw materials, the outer box door 15 and the inner box door 14 should be opened again for operation.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant storage device for lithium battery raw materials, comprising an inner casing (10), characterized in that: Two symmetrical inner doors (14) are hinged to the front side of the inner box (10). A gas suction pump (2) is installed outside the inner box (10). A suction pipe (20) is fixedly installed at the air inlet end of the gas suction pump (2). The suction pipe (20) extends into the inner box (10). A nitrogen generator (3) and a gas delivery pump (30) are also installed outside the inner box (10). The air inlet end of the gas delivery pump (30) is connected to the nitrogen generator. The devices (3) are connected by an air inlet pipe (31). An air outlet pipe (32) is fixedly installed at the air outlet end of the gas delivery pump (30). Two evenly distributed pipes (33) are fixedly installed on the air outlet pipe (32). The two evenly distributed pipes (33) are respectively fixedly installed on the inner walls of the left and right sides of the inner box (10). An air outlet head (34) is fixedly installed at the bottom end of the evenly distributed pipe (33). The air outlet head (34) is fixedly installed on the bottom wall of the inner box (10).

2. The flame-retardant storage device for lithium battery raw materials according to claim 1, characterized in that: The suction pipe (20) has a suction hood (21) fixedly installed at the air inlet end, and the suction hood (21) is located at the top of the inner box (10).

3. The flame-retardant storage device for lithium battery raw materials according to claim 1, characterized in that: A horizontal air outlet (341) is provided on the end face of the air outlet (34), and a plurality of upward air outlets (342) are provided on the top surface of the air outlet (34).

4. The flame-retardant storage device for lithium battery raw materials according to claim 1, characterized in that: The inner box (10) is provided with an outer box (1), and two symmetrical outer box doors (15) are hinged on the front side of the outer box (1).

5. The flame-retardant storage device for lithium battery raw materials according to claim 4, characterized in that: A plurality of support columns (11) are fixedly installed between the inner box (10) and the outer box (1), and the support columns (11) are used for supporting the inner box (10).

6. The flame-retardant storage device for lithium battery raw materials according to claim 1, characterized in that: Multiple mesh placement racks (12) are fixedly installed on the inner wall of the inner box (10), and the mesh placement racks (12) are mesh-shaped plate structures.

7. The flame-retardant storage device for lithium battery raw materials according to claim 4, characterized in that: The bottom of the outer casing (1) is fixedly equipped with multiple support legs (13), and the height of the support legs (13) is between 6cm and 10cm.

8. The flame-retardant storage device for lithium battery raw materials according to claim 5, characterized in that: Both the inner box door (14) and the outer box door (15) are provided with sealing gaskets (16), and both the inner box door (14) and the outer box door (15) are provided with corresponding door locks.

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