Energy storage liquid nitrogen fire extinguishing and explosion suppression device

Abstract

The utility model discloses an energy storage liquid nitrogen fire extinguishing and explosion suppression device, and relates to the technical field of energy storage liquid nitrogen fire extinguishing and explosion suppression. The refrigerating cabinet comprises a cabinet body, a mounting frame is arranged on one side of the inner top face of the cabinet body, and a cryogenic refrigerator body is arranged in the mounting frame. Through the arrangement of the cryogenic refrigerator main body, the liquid nitrogen tank and the two nitrogen tanks, the liquid nitrogen fire extinguishing and explosion suppression device consists of an cryogenic refrigeration system of the cryogenic refrigerator main body, special liquid nitrogen storage bottle groups of the two nitrogen tanks and a system controller of a display module, and is designed into an integrated fire extinguishing and explosion suppression device through integrated optimization; the device is compact in design and reasonable in overall layout, adopts a multi-element environment-friendly refrigerant, is high in refrigeration speed, utilizes the low-temperature characteristic of liquid nitrogen, combines large-temperature-difference heat exchange with gasification heat, quickly cools in a short time to stop thermal runaway of the battery, and utilizes nearly seven hundred times of gas-liquid ratio of the liquid nitrogen, excellent inerting explosion suppression effect of low-temperature nitrogen and low-oxygen concentration explosion suppression.

Description

Technical Field

[0001] The utility model belongs to the field of energy storage liquid nitrogen fire extinguishing and explosion suppression, and specifically relates to an energy storage liquid nitrogen fire extinguishing and explosion suppression device. Background Technique

[0002] The normal boiling point temperature of liquid nitrogen is -196°C, which has the characteristics of strong inertness, good stability, high nitrogen content, no corrosion, clean and environmental protection, etc., and is perfectly suitable for extinguishing and suppressing the reignition and explosion of lithium-ion battery fires.

[0003] The Chinese patent with the publication number CN220159105U discloses a fire extinguishing and explosion suppression device, including a first storage tank, a refrigeration device, a first channel seal, a first puncture valve, a vaporization nozzle and a controller; the refrigeration device and the first puncture valve are respectively electrically connected to the controller; the first storage tank can store the fire extinguishing agent; the heat exchange end of the refrigeration device is arranged in the first storage tank; an output pipeline is arranged between the first storage tank and the vaporization nozzle, and the first channel seal is arranged on the output pipeline, and the first channel seal can hermetically isolate the first storage tank and the vaporization nozzle; the first functional end of the first puncture valve can move relative to the first channel seal to puncture the first channel seal, so as to connect the first storage tank and the vaporization nozzle. The fire extinguishing and explosion suppression device provided by this application can prevent the loss and consumption of the fire extinguishing agent, and thus ensure the service life and fire extinguishing effect of the fire extinguishing and explosion suppression device.

[0004] However, since the material of the fire extinguishing agent is made of fine particles obtained by mixing a fire extinguishing base material, an appropriate amount of lubricant and a small amount of moisture-proof agent and then grinding them together, direct spraying will cause irreversible damage to electrical equipment, resulting in cost losses, and the cooling rate of the fire extinguishing agent is too slow, which will increase the risk of overheating explosion of electrical equipment.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide an energy storage liquid nitrogen fire extinguishing and explosion suppression device, which solves the problems raised in the above background technique, that is, since the material of the fire extinguishing agent is made of fine particles obtained by mixing a fire extinguishing base material, an appropriate amount of lubricant and a small amount of moisture-proof agent and then grinding them together, direct spraying will cause irreversible damage to electrical equipment, resulting in cost losses, and the cooling rate of the fire extinguishing agent is too slow, which will increase the risk of overheating explosion of electrical equipment.

[0007] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0008] An energy storage liquid nitrogen fire extinguishing and explosion suppression device, comprising: a cabinet body, on one side of the inner top surface of the cabinet body, there is an installation frame, inside the installation frame, there is a cryogenic refrigerator main body, on one side of the inner bottom surface of the cabinet body, there is a liquid nitrogen tank, and on the other side of the inner bottom surface of the cabinet body, there are two nitrogen gas tanks.

[0009] Optionally, at the top of the two nitrogen gas tanks, there are nozzle mouths, and on one side of the nozzle mouth, there is a first connecting pipe connected through.

[0010] Optionally, at the top of the liquid nitrogen tank, there is a connector, and on one side of the connector, it is connected through with one end of the first connecting pipe.

[0011] Optionally, at the top of the connector, there is a liquid spraying pipe connected through, and the top end of the liquid spraying pipe penetrates through the top of the cabinet body and is provided with a liquid spraying head.

[0012] Optionally, at a corner of the surface of the installation frame, there is a connecting plate, and on the surface of the connecting plate, there is a manual liquid spraying button.

[0013] Optionally, on the surface of the cabinet body, there is a cabinet door, on one side of the surface of the cabinet door, there is a display module for displaying information inside the tank, and on one side of the display module, there are several indicating lights.

[0014] After adopting the above technical solution, compared with the prior art, the present utility model has the following beneficial effects. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] 1. Through the setting of the cryogenic refrigerator main body, the liquid nitrogen tank and the two nitrogen gas tanks, the liquid nitrogen fire extinguishing and explosion suppression device consists of three parts: the cryogenic refrigeration system of the cryogenic refrigerator main body, the special bottle group for liquid nitrogen storage of the two nitrogen gas tanks, and the system controller of the display module. Through integrated and optimized design, it is an integrated fire extinguishing and explosion suppression device, with a compact design, delicate appearance, and reasonable overall layout. It adopts a multi-component environmental protection refrigerant, has a fast refrigeration speed, utilizes the low-temperature characteristics of liquid nitrogen, combines large temperature difference heat exchange with gasification heat, quickly cools down within a short time to terminate the thermal runaway of the battery, and utilizes the gas-liquid ratio of nearly seven hundred times of liquid nitrogen and the excellent inerting and explosion suppression effect of low-temperature nitrogen gas to achieve total flooding fire extinguishing and low oxygen concentration explosion suppression.

[0016] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0017] The accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the accompanying

[0018] Figures:

[0019] Figure 1 is a schematic diagram of the overall structure;

[0020] Figure 2 is a schematic diagram of the cabinet structure;

[0021] Figure 3 is a schematic diagram of the liquid nitrogen tank structure;

[0022] Figure 4 is a schematic diagram of two nitrogen tanks.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Cabinet; 2. Mounting frame; 3. Ultra-low temperature refrigerator main body; 4. Liquid nitrogen tank; 5. Two nitrogen tanks; 6. Nozzle; 7. First connecting pipe; 8. Connector; 9. Liquid spraying pipe; 10. Liquid spraying head; 11. Manual liquid spraying button; 12. Cabinet door; 13. Display module; 14. Indicator light.

[0025] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0026] Now, the present utility model will be further described in detail with reference to the drawings.

[0027] Please refer to Figures 1-4 As shown, in this embodiment, an energy storage liquid nitrogen fire extinguishing and explosion suppression device is provided, including: a cabinet 1, a mounting frame 2 is arranged on one side of the inner top surface of the cabinet 1, an ultra-low temperature refrigerator main body 3 is arranged inside the mounting frame 2, a liquid nitrogen tank 4 is arranged on one side of the inner bottom surface of the cabinet 1. Using a multi-component environmental-friendly refrigerant, it has a fast refrigeration speed. Utilizing the low-temperature characteristics of liquid nitrogen, the combination of large temperature difference heat exchange and gasification heat can quickly cool down and terminate the thermal runaway of the battery in a short time. Utilizing the gas-liquid ratio of nearly seven hundred times of liquid nitrogen and the excellent inerting and explosion suppression effect of low-temperature nitrogen, it realizes total flooding fire extinguishing and low-oxygen concentration explosion suppression. Two nitrogen tanks 5 are arranged on the other side of the inner bottom surface of the cabinet 1.

[0028] One aspect of the application of this embodiment is that the liquid nitrogen fire extinguishing and explosion suppression device consists of three parts: the ultra-low temperature refrigeration system of the ultra-low temperature refrigerator main body 3, the special liquid nitrogen storage bottle group of two nitrogen tanks 5, and the system controller of the display module 13. Through integrated and optimized design, it is an integrated fire extinguishing and explosion suppression device with a compact design, delicate appearance, and reasonable overall layout. It should be noted that all electrical equipment involved in this application can be powered by a storage battery or an external power supply.

[0029] As Figure 2As shown in the figure, nozzles 6 are provided at the tops of the two nitrogen gas cylinders 5 of this embodiment. One side of the nozzle 6 is connected through a first connecting pipe 7. A connector 8 is provided at the top of the liquid nitrogen tank 4. One side of the connector 8 is connected through the end of the first connecting pipe 7. The setting of the first connecting pipe 7 enables the liquid nitrogen tank 4 and the two nitrogen gas cylinders 5 to communicate with each other.

[0030] As Figure 2 shown in the figure, a liquid spraying pipe 9 is connected through the top of the connector 8 of this embodiment. The top end of the liquid spraying pipe 9 penetrates through the top of the cabinet body 1 and is provided with a liquid spraying head 10. A connecting plate is provided at a corner of the surface of the mounting frame 2. A manual liquid spraying button 11 is provided on the surface of the connecting plate. The setting of the liquid spraying head 10 is used to spray liquid nitrogen, with simple operation, rapid fire extinguishing, and high safety.

[0031] As Figure 1 shown in the figure, a cabinet door 12 is provided on the surface of the cabinet body 1 of this embodiment. A display module 13 for displaying information inside the tank is provided on one side of the surface of the cabinet door 12. A number of indicating lamps 14 are provided on one side of the display module 13. The settings of the display module 13 and the indicating lamps 14 are used to intuitively understand information such as liquid level information, tank pressure conditions, and power indication.

[0032] Embodiment 1:

[0033] In this embodiment, as Figure 3 shown in the figure, for the cabinet body 1, a mounting frame 2 is provided on one side of the inner top surface of the cabinet body 1. A cryogenic refrigerator main body 3 is provided inside the mounting frame 2. The internal layout of the cabinet is simple. Through integrated optimization design, it is an integrated fire extinguishing and explosion suppression device, with a compact design, delicate appearance, and reasonable overall layout.

[0034] Embodiment 2:

[0035] In this embodiment, as Figure 4 shown in the figure, a liquid nitrogen tank 4 is provided on one side of the inner bottom surface of the cabinet body 1, and two nitrogen gas cylinders 5 are provided on the other side of the inner bottom surface of the cabinet body 1. A multi-component environmental protection refrigerant is adopted, with a fast refrigeration speed. Utilizing the low-temperature characteristics of liquid nitrogen, the combination of large temperature difference heat transfer and gasification heat enables rapid temperature reduction within a short time to terminate battery thermal runaway. Utilizing the gas-liquid ratio of nearly seven hundred times of liquid nitrogen and the excellent inerting and explosion suppression effect of low-temperature nitrogen gas, total flooding fire extinguishing and low oxygen concentration explosion suppression are achieved.

[0036] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. An energy storage liquid nitrogen fire extinguishing and explosion suppression device, characterized in that: include: A cabinet (1), a mounting frame (2) is arranged on one side of the top surface of the cabinet (1), a super-low temperature refrigerator body (3) is arranged inside the mounting frame (2), a liquid nitrogen tank (4) is arranged on one side of the bottom surface of the cabinet (1), and two nitrogen tanks (5) are arranged on the other side of the bottom surface of the cabinet (1).

2. The energy storage liquid nitrogen fire extinguishing and explosion suppression device according to claim 1, characterized in that: The tops of the two nitrogen tanks (5) are provided with bottle mouths (6), and one side of the bottle mouths (6) is connected through a first connecting pipe (7).

3. The energy storage liquid nitrogen fire extinguishing and explosion suppression device according to claim 1, characterized in that: A connector (8) is provided on the top of the liquid nitrogen tank (4), and one side of the connector (8) is connected to one end of the first connecting pipe (7).

4. The energy storage liquid nitrogen fire extinguishing and explosion suppression device according to claim 3 is characterized in that: The top of the connecting head (8) is connected through a liquid spray pipe (9), and the top end of the liquid spray pipe (9) passes through the top of the cabinet (1) and is provided with a liquid spray head (10).

5. The energy storage liquid nitrogen fire extinguishing and explosion suppression device according to claim 1, characterized in that: A connecting plate is provided at a corner of the surface of the mounting frame (2), and a manual liquid spraying button (11) is provided on the surface of the connecting plate.

6. The energy storage liquid nitrogen fire extinguishing and explosion suppression device according to claim 1, characterized in that: The cabinet body (1) is provided with a cabinet door (12) on its surface, a display module (13) for displaying information in the tank is provided on one side of the cabinet door (12) surface, and a plurality of indicator lights (14) are provided on one side of the display module (13).

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