Lithium battery storage and transport safety capsule

Abstract

The utility model relates to a lithium battery storage and transportation safety cabin belongs to lithium battery safety protection technical field, the device includes the layered storage area and fire extinguishing agent operation area, and the storage area is equipped with the fireproof storage grid of adjustable size, and the built -in spacing board with opening, and the fire extinguishing agent pipeline can be laid in the storage grid. Fire extinguishing agent operation area is equipped with the fire extinguishing agent storage box of repeatable filling, pre -pressurization device (include electrically operated / manual inflation pump) and fire extinguishing agent pipeline system. When lithium battery spontaneous combustion, the flame burns and breaks the fire extinguishing agent pipeline trigger pressure relief, and the fire extinguishing agent precision injection is to the ignition point, realizes the quick local fire extinguishing and prevents the spread. Its innovation lies in the layered isolation design, pre -pressurization fire extinguishing system and the broken response formula pipeline, effectively solved the problem of response lag, resource waste in the prior art, and the safety of lithium battery storage and transportation process has been improved significantly.

Description

Technical Field

[0001] This utility model relates to lithium battery safety protection technology, specifically to a safety cabin device for automatically extinguishing fires when lithium battery products spontaneously combust during storage and transportation. Background Technology

[0002] With the widespread use of mobile electronic devices and energy storage systems, lithium battery products (such as power banks, mobile phones, and tablets) are at risk of spontaneous combustion and thermal runaway during storage and transportation. If spontaneous combustion occurs, and the fire cannot be extinguished promptly and locally, it can easily spread to adjacent batteries, potentially causing a larger fire. Currently, common solutions on the market involve filling the entire battery with extinguishing gas or using external sprinkler systems, which lack rapid response and isolation for individual battery failure points. This is both resource-intensive and poses safety hazards such as accidental spraying and triggering. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a lithium battery storage and transportation safety compartment, the specific technical solution of which is as follows: A lithium battery storage and transportation safety compartment, comprising: The main body of the safety cabin is divided into a storage area and a fire extinguishing agent operation area. The storage area adopts a layered structure, and each layer is equipped with several adjustable-size storage compartments for storing lithium battery products of different specifications. The storage compartments are equipped with partitions to adjust the size of the storage compartments. The partitions have fireproof and heat insulation performance of not less than 30 minutes to prevent the horizontal spread of fire. Furthermore, openings are provided on the side walls of the storage compartments and above the partition plates for laying fire extinguishing agent pipelines, and the fire extinguishing agent pipelines are laid unidirectionally in each storage compartment. Furthermore, in the storage compartment layered structure, a sealing layer joint is provided on the upper and lower sides of the partition between every two layers for the fire extinguishing agent pipeline to pass through the layers; Furthermore, the storage compartment is equipped with a door, a pressure relief vent is provided above the door, and a high-temperature resistant and flame-retardant sealing ring is provided on the inner wall of the door to prevent the extinguishing agent from leaking from the gaps in the door after being sprayed. The door is equipped with a lock to lock the storage compartment. Furthermore, the fire extinguishing agent operation area is located at the bottom or one side of the main body of the safety cabin. The fire extinguishing agent operation area is equipped with a fire extinguishing agent storage box, a pre-pressurization device and a fire extinguishing agent pipeline. The fire extinguishing agent storage box contains a certain amount of fire extinguishing agent (such as water-based nano foam, perfluorohexanone, etc.) and reserves space for compressed air. Furthermore, a cover is provided on top of the extinguishing agent storage box, which can be replenished and reused when the extinguishing agent is insufficient. At the same time, a pressure gauge and a safety relief valve are provided on top of the extinguishing agent storage box. By checking the pressure gauge, the pressure in the compressed air space can be understood, and the safety relief valve can release pressure when the pressure exceeds the set pressure. Furthermore, the pre-pressurization device is equipped with two components: an electric air pump and a manual air pump. Each of the electric and manual air pumps is equipped with an air connector of the same specification. The pre-pressurization device is equipped with an air hose. One end of the air hose can be connected to the air connector of the electric or manual air pump, and the other end of the air hose is connected to a T-connector. One end of the other two ends of the T-connector of the air hose is connected to the air inlet connector of the extinguishing agent storage box via a one-way valve, and the other end is connected to the four-way connector of the liquid outlet of the extinguishing agent storage box via a one-way valve. When it is necessary to pressurize the extinguishing agent storage box, the compressed air space inside the extinguishing agent storage box is pressurized to a preset pressure value through the electric or manual air pump. Furthermore, the extinguishing agent pipeline is a fire detection tube with a burst response temperature that can be set according to the usage environment. It runs through each layer of the storage compartment and the partition plate. The fire detection tube forms a loop every two layers, entering from the upper horizontal storage compartment and exiting from the lower horizontal storage compartment. Both ends converge at a multi-way connector in the extinguishing agent operation area. One end of the multi-way connector is connected to a four-way connector at the outlet of the extinguishing agent storage box. The extinguishing agent pipeline at the outlet of the extinguishing agent storage box sinks to the bottom of the extinguishing agent storage box. When the target pressure is reached in the compressed air space, the gas pressure in the extinguishing agent pipeline and the compressed air space can be made equal, and this pressure is maintained during storage and transportation. Moreover, the extinguishing agent in the extinguishing agent storage box will not enter the extinguishing agent pipeline under static pressure.

[0004] The beneficial effects of this utility model are: by using a pre-pressurized fire extinguishing agent storage box and a fire extinguishing agent plastic hose that runs through each storage compartment, the pressure relief effect when the flame burns through the pipe can be used to quickly and accurately spray the fire extinguishing agent into the burning storage compartment in the early stage of lithium battery spontaneous combustion, locally extinguish the fire source and isolate its spread, while not affecting other storage compartments. Attached Figure Description

[0005] Figure 1 A schematic diagram of a lithium battery storage and transportation safety compartment.

[0006] In the diagram: 1. Safety cabin main body; 2. Storage area; 3. Extinguishing agent operation area; 21. Storage compartment; 22. Spacer; 23. Door; 24. Pressure relief port; 25. Sealing ring; 26. Lock; 31. Extinguishing agent storage box; 32. Extinguishing agent pipeline; 33. Cover; 34. Pressure gauge; 35. Safety pressure relief valve; 36. Multi-way connector; 37. Electric air pump; 38. Manual air pump; 39. Gas line connector; 40. Gas line hose; 41. T-connector; 42. First one-way valve; 43. Second one-way valve; 44. Air inlet connector; 45. Liquid outlet four-way connector; 46. Layer connector. Detailed Implementation

[0007] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0008] like Figure 1 As shown, a lithium battery storage and transportation safety compartment includes: a safety compartment body 1, which is divided into a storage area 2 and a fire extinguishing agent operation area 3. The storage area 2 adopts a layered structure, and each layer is provided with several adjustable-size storage compartments 21 for storing lithium battery products of different specifications. The storage compartments 21 are provided with partitions 22 for adjusting the size of the storage compartments 21. The partitions 22 are made of rock wool sandwich panels or fireproof alloy panels with a fire resistance limit of not less than 30 minutes, which can prevent the horizontal spread of fire. In this embodiment, openings are provided on the side wall of the storage compartment 21 and above the partition plate 22 for laying fire extinguishing agent pipelines 32. The fire extinguishing agent pipelines 32 are laid unidirectionally in each layer of storage compartment 21. In this embodiment, in the layered structure of storage area 2, a sealing layer joint 46 is provided on the upper and lower sides of the partition between every two layers for the fire extinguishing agent pipeline 32 to pass through the layers; In this embodiment, the storage compartment 21 is provided with a door 23, a pressure relief port 24 is provided above the door 23, and a high temperature resistant flame retardant sealing ring 25 is provided on the inner wall of the door 23 to prevent the fire extinguishing agent from leaking from the gap of the door 23 after spraying. The door 23 is provided with a lock 26 to lock the storage compartment 21. In this embodiment, the fire extinguishing agent operation area 3 is located at the bottom or one side of the main body 1 of the safety cabin. The fire extinguishing agent operation area 3 is equipped with a fire extinguishing agent storage box 31, a pre-pressurization device and a fire extinguishing agent pipeline 32. The fire extinguishing agent storage box 31 contains a certain amount of fire extinguishing agent (such as water-based nano foam, perfluorohexanone, etc.) and reserves space for compressed air. In this embodiment, a cover 33 is provided on the top of the fire extinguishing agent storage box 31. When the fire extinguishing agent is insufficient, it can be replenished and reused. At the same time, a pressure gauge 34 and a safety relief valve 35 are provided on the top of the fire extinguishing agent storage box 31. By checking the pressure gauge 34, the pressure in the compressed air space can be understood. The safety relief valve 35 can release pressure when the pressure exceeds the set pressure. In this embodiment, the pre-pressurization device is equipped with two components: an electric air pump 37 and a manual air pump 38. Each of the electric air pump 37 and the manual air pump 38 is equipped with an air connector 39 of the same specification. The pre-pressurization device is equipped with an air hose 40. One end of the air hose 40 can be connected to the air connector 39 of the electric air pump 37 or the air connector 39 of the manual air pump 38. The other end of the air hose 40 is connected to a three-way connector 41. One end of the other two ends of the three-way connector 41 is connected to the air inlet connector 44 of the fire extinguishing agent storage box via a first one-way valve 42, and the other end is connected to the four-way connector 45 of the liquid outlet of the fire extinguishing agent storage box via a second one-way valve 43. When it is necessary to pressurize the fire extinguishing agent storage box 31, the compressed air space in the fire extinguishing agent storage box 31 is pressurized to a preset pressure value by the electric air pump 37 or the manual air pump 38. In this embodiment, the extinguishing agent pipeline 32 is a fire detection tube with a burst response temperature that can be set according to the usage environment. It runs through each layered storage compartment 21 and the partition plate 22. The fire detection tube forms a loop every two layers, entering from the upper horizontal storage compartment 21 and exiting from the lower horizontal storage compartment 21. Both ends converge at the extinguishing agent operation area 3 on the multi-way connector 36. One end of the multi-way connector 36 is connected to the four-way connector 45 of the outlet of the extinguishing agent storage box. The extinguishing agent pipeline at the outlet of the extinguishing agent storage box sinks to the bottom of the extinguishing agent storage box 31. When the target pressure is reached in the compressed air space, the gas pressure in the extinguishing agent pipeline 32 and the compressed air space can be equalized and this pressure is maintained during storage and transportation. Moreover, the extinguishing agent in the extinguishing agent storage box 31 will not enter the extinguishing agent pipeline 32 under static pressure.

[0009] In this embodiment, a lithium battery storage and transportation safety compartment has the following working process: Storage compartments are provided as needed to house lithium battery products; Pre-pressurization: Start the air pump and adjust the pressure inside the box to 0.4 MPa; Transportation: Keep sealed; the extinguishing agent should not leak under normal pressure. Trigger: The flame burns through the corresponding plastic tube, causing a sudden drop in pressure inside the tube; Fire extinguishing: The pressure difference drives the extinguishing agent to spray out along the pipeline, extinguishing the fire source locally.

[0010] In this embodiment, a lithium battery storage and transportation safety compartment is provided, which may be improved by adding a temperature sensor and a remote monitoring module to enable early warning.

[0011] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. All equivalent variations and improvements within the principles of this utility model should be covered within the scope of the claims of this utility model.

Claims

1. A lithium battery storage and transportation safety compartment, characterized in that, include: The main body of the safety cabin (1) is divided into a storage area (2) and a fire extinguishing agent operation area (3). The storage area (2) adopts a layered structure, with several adjustable-size storage compartments (21) on each layer. Fireproof and heat-insulating partitions (22) are installed inside the storage compartments (21). Sealing layer joints (46) are provided on the upper and lower sides of the partition between every two layers of the storage area (2) for fire extinguishing agent pipelines (32) to pass through the layers. Openings are provided on the side walls of the storage compartments (21) and above the partitions (22) for laying fire extinguishing agent pipelines (32). The storage compartments (21) are equipped with doors (23), and pressure relief ports (24) are provided above the doors (23). The inner wall is provided with a high temperature resistant flame retardant sealing ring (25), and the door (23) is equipped with a lock (26); the fire extinguishing agent operation area (3) is located at the bottom or one side of the main body of the safety cabin (1), including a fire extinguishing agent storage box (31), a pre-pressurization device and a fire extinguishing agent pipeline (32); the fire extinguishing agent storage box (31) contains a fire extinguishing agent and compressed air space. When the lithium battery in the storage compartment (21) spontaneously combusts and burns the corresponding fire extinguishing agent pipeline (32), the pressure in the pipeline drops sharply, and the fire extinguishing agent is sprayed into the burning storage compartment (21) through the fire extinguishing agent pipeline (32) under the action of pressure difference, so as to achieve fixed-point fire extinguishing.

2. The lithium battery storage and transportation safety compartment according to claim 1, characterized in that: The partition (22) is a rock wool sandwich panel or a fireproof alloy panel with a fire resistance time of not less than 30 minutes.

3. The lithium battery storage and transportation safety compartment according to claim 1, characterized in that: The fire extinguishing agent storage box (31) contains fire extinguishing agent and has reserved space for compressed air. The top is equipped with an openable and closable cover (33), a pressure gauge (34) and a safety pressure relief valve (35).

4. The lithium battery storage and transportation safety compartment according to claim 1, characterized in that, The extinguishing agent is a water-based nanofoam extinguishing agent or perfluorohexanone.

5. The lithium battery storage and transportation safety compartment according to claim 1, characterized in that: The pre-pressurization device includes an electric air pump (37), a manual air pump (38), and an air hose (40). One end of the air hose (40) is selectively connected to the electric or manual air pump, and the other end is divided into two paths via a three-way connector (41). One path is connected to the air inlet of the extinguishing agent storage box via a first one-way valve (42), and the other path is connected to the four-way connector (45) of the liquid outlet of the extinguishing agent storage box via a second one-way valve (43).

6. The lithium battery storage and transportation safety compartment according to claim 1, characterized in that: The extinguishing agent pipeline (32) is a fire detection pipe that runs through each storage compartment (21) and partition plate (22). The extinguishing agent pipeline (32) forms a loop every two layers, entering from the upper horizontal storage compartment (21) and exiting from the lower horizontal storage compartment (21). Both ends are connected to the multi-way connector (36) in the extinguishing agent operation area (3). The multi-way connector (36) is connected to the four-way connector (45) of the outlet of the extinguishing agent storage box. The extinguishing agent pipeline of the outlet of the extinguishing agent storage box extends to the bottom of the box. Under static pressure, the extinguishing agent does not enter the pipeline.

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