Prefabricated perfluorohexanone fire extinguishing device

Abstract

The utility model belongs to the technical field of fire fighting equipment, and particularly relates to a prefabricated perfluorohexanone fire extinguishing device which comprises a fire extinguishing agent storage assembly, a gas production starting assembly, a feedback signal collection assembly and a thermosensitive assembly, the fire extinguishing agent storage assembly is mainly used for storing and releasing fire extinguishing media so as to cope with fire accidents. The gas production starting assembly comprises a gas generator, a control system and a safety device; the gas production starting assembly is responsible for producing required gas; the control system is used for monitoring and adjusting the running state of the gas generator and ensuring stable supply of gas; through the structural design that the fire extinguishing agent storage assembly, the gas production starting assembly, the feedback signal collecting assembly and the thermosensitive assembly are matched, and the perfluorohexanone fire extinguishing agent is sprayed to the battery, the function that the battery is extinguished through the perfluorohexanone fire extinguishing agent when the battery is on fire is achieved, and the safety of the battery is improved. And the problem that the traditional dry powder and fixed large fire extinguishing facilities cannot fundamentally interrupt the reaction is effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection equipment technology, specifically a prefabricated perfluorohexanone fire extinguishing device. Background Technology

[0002] The lithium iron phosphate battery pack is the basic unit that makes up the UPS cabinet. Under conditions such as overcharging and overload, the individual lithium iron phosphate batteries in the pack undergo chemical reactions and continuously generate heat. The heat accumulation leads to thermal runaway, which can cause fire or even explosion, posing a significant fire hazard.

[0003] Research findings indicate that the fire hazards of lithium iron phosphate batteries are mainly manifested in the following aspects: the temperature at which thermal runaway occurs is relatively low; a large amount of flammable gas is generated during the thermal runaway process; there is an explosion risk in a confined state; the battery combustion temperature is relatively high; the highest temperature when the PACK (battery module) is burning can reach over 700°C; if a fire in a single battery cell goes out of control, it will spread to the entire PACK and is very likely to cause a larger-scale fire. Due to the small space inside the lithium iron phosphate battery PACK and the special characteristics of lithium-ion batteries, fire extinguishing facilities face great challenges. Traditional dry powder and fixed large-scale fire extinguishing facilities cannot fundamentally interrupt the reaction.

[0004] Therefore, this utility model provides a prefabricated perfluorohexanone fire extinguishing device. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A prefabricated perfluorohexanone fire extinguishing device of this utility model includes a fire extinguishing agent storage component, a gas generation and activation component, a feedback signal collection component, and a heat-sensitive component; the fire extinguishing agent storage component is mainly used to store and release the fire extinguishing medium to deal with fire accidents; the gas generation and activation component includes a gas generator, a control system, and a safety device; the gas generation and activation component is responsible for generating the required gas; the control system is used to monitor and regulate the operating status of the gas generator to ensure a stable gas supply; the safety device is used to ensure the operational safety of the gas generation and activation component.

[0007] Preferably, the extinguishing agent storage assembly includes a fixed base, an extinguishing agent storage container, and an atomizing nozzle; the extinguishing agent storage container is fixed to the top of the fixed base; the atomizing nozzle is connected to the interior of the extinguishing agent storage container; the fixed base has four circular holes inside, and the circular holes are located at the corners of the fixed base; this effectively solves the problem that traditional dry powder and fixed large-scale fire extinguishing facilities cannot fundamentally interrupt the reaction.

[0008] Preferably, the heat-sensitive component includes a connecting wire, a heat signal collecting device, and a heat-sensitive wire; the connecting wire is connected to the gas-generating start-up component; the other end of the connecting wire is connected to the heat signal collecting device; so that the perfluorohexanone fire extinguishing agent inside the fixed base is sprayed out by the atomizing nozzle to extinguish the fire.

[0009] Preferably, the feedback signal collection component includes a feedback signal terminal block and a feedback line; the feedback line is connected to a thermal signal collection device; the other end of the feedback line is connected to a feedback signal terminal block; the control gas generation start-up component generates high-pressure gas to spray out the perfluorohexanone fire extinguishing agent stored inside the fixed base.

[0010] Preferably, the atomizing nozzle is connected to the extinguishing agent storage container via an adjusting arm; the adjusting arm is made of aluminum alloy; this allows for more precise spraying of the perfluorohexanone extinguishing agent.

[0011] Preferably, the fixed base has multiple embedded washers fixed inside; the embedded washers are positioned at the corresponding internal circular holes of the fixed base; this allows for better fixing of the screws to the fixed base.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The prefabricated perfluorohexanone fire extinguishing device of this utility model, through the cooperation of the fire extinguishing agent storage component, the gas generation and start-up component, the feedback signal collection component and the heat-sensitive component, sprays the perfluorohexanone fire extinguishing agent onto the battery. It realizes the function of extinguishing the battery fire with the perfluorohexanone fire extinguishing agent when the battery catches fire, effectively solving the problem that traditional dry powder and fixed large-scale fire extinguishing facilities cannot fundamentally interrupt the reaction. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram illustrating the function and operating principle of the perfluorohexanone fire extinguishing device in this utility model;

[0016] Figure 2 This is a system block diagram of the perfluorohexanone fire extinguishing device in this utility model;

[0017] Figure 3 This is a perspective view of the perfluorohexanone fire extinguishing device of this utility model.

[0018] In the diagram: 1. Fixed base; 2. Extinguishing agent storage container; 3. Atomizing nozzle; 4. Connecting wire; 5. Thermal signal collection device; 6. Thermal wire; 7. Feedback signal terminal; 8. Feedback wire; 9. Adjusting arm; 10. Embedded gasket. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] like Figures 1 to 3 As shown, a prefabricated perfluorohexanone fire extinguishing device includes an extinguishing agent storage component, a gas generation and activation component, a feedback signal collection component, and a heat-sensitive component. The extinguishing agent storage component is mainly used to store and release the extinguishing medium to respond to fire accidents. The gas generation and activation component includes a gas generator, a control system, and a safety device. The gas generation and activation component is responsible for generating the required gas. The control system is used to monitor and regulate the operating status of the gas generator to ensure a stable gas supply. The safety device is used to ensure the operational safety of the gas generation and activation component.

[0022] The extinguishing agent storage assembly includes a fixed base 1, an extinguishing agent storage container 2, and an atomizing nozzle 3. The extinguishing agent storage container 2 is fixed to the top of the fixed base 1. The atomizing nozzle 3 is connected to the interior of the extinguishing agent storage container 2. The fixed base 1 has four circular holes located at its corners. During operation, the fixed base 1 is fixed inside the battery pack using the four 3.5mm diameter holes and M3 screws, ensuring the atomizing nozzle 3 faces the battery. When the thermal sensor receives a temperature rise signal, it transmits the signal to the gas generation activation component via the feedback signal collection component. This generates high-pressure gas, which then sprays the perfluorohexanone extinguishing agent through the atomizing nozzle 3 to extinguish the battery fire. Since perfluorohexanone is a liquid at room temperature, it... Perfluorohexanone is non-conductive in both its liquid and gaseous states. Under conditions of one atmosphere, 21°C, and a 2.7mm electrode spacing, the insulation breakdown voltage of saturated perfluorohexanone vapor is 15.6kV, which is 2.3 times that of dry nitrogen. Under the same conditions, the breakdown voltage of liquid perfluorohexanone is 48kV. Perfluorohexanone's properties are similar to many first-generation halon alternatives, but with one major difference: this compound is a liquid under normal environmental conditions. Perfluorohexanone has a boiling point of 49.2°C, and its vapor pressure is much lower than other extinguishing agents. Its heat of vaporization is very low, approximately 25 times lower than water. This, combined with its vapor pressure being 12 times higher than water, results in a perfluorohexanone evaporation rate more than 50 times faster than water. This allows the reagent to rapidly transition from a liquid to a gaseous state, giving perfluorohexanone superior fire extinguishing performance and effectively solving the problem that traditional dry powder and fixed large-scale fire extinguishing systems cannot fundamentally interrupt the reaction.

[0023] The thermal component includes a connecting wire 4, a heat signal collecting device 5, and a thermal wire 6; the connecting wire 4 is connected to a gas generation start-up component; the other end of the connecting wire 4 is connected to the heat signal collecting device 5; the thermal wire 6 is connected to the heat signal collecting device 5; during operation, during installation, the thermal wire 6 can be laid inside the battery. When the thermal wire 6 encounters high temperature or open flame, it automatically triggers the gas generation start-up component inside the fixed base 1, causing the perfluorohexanone fire extinguishing agent inside the fixed base 1 to be sprayed out from the atomizing nozzle 3 for fire extinguishing.

[0024] The feedback signal collection component includes a feedback signal terminal 7 and a feedback line 8; the feedback line 8 is connected to the thermal signal collection device 5; the other end of the feedback line 8 is connected to the feedback signal terminal 7; during operation, when the thermal component receives a thermal signal, it can send the thermal signal to the gas generation start-up component through the thermal signal collection device 5, control the gas generation start-up component to generate high-pressure gas, and spray out the perfluorohexanone fire extinguishing agent stored inside the fixed base 1.

[0025] The atomizing nozzle 3 is connected to the extinguishing agent storage container 2 via an adjusting arm 9. The adjusting arm 9 is made of aluminum alloy. During operation, when the extinguishing agent storage container 2 is installed, the orientation of the atomizing nozzle 3 can be controlled by the adjusting arm 9 so that the atomizing nozzle 3 faces the direction of the battery, thereby making the spray direction of the perfluorohexanone extinguishing agent more precise.

[0026] The fixed base 1 has multiple embedded washers 10 fixed inside; the embedded washers 10 are set at the positions of the corresponding internal round holes of the fixed base 1; during operation, when the fixed base 1 is fixed by screws, by setting the embedded washers 10 inside the fixed base 1, the contact area between the screw and the fixed base 1 can be increased, thereby making the screw fixation effect on the fixed base 1 better.

[0027] During operation, the device is fixed to the battery pack using four 3.5mm diameter holes in the base 1 and M3 screws, ensuring the atomizing nozzle 3 is directly facing the battery. When the thermal component receives a temperature rise signal, it transmits the signal to the gas generation activation component via the feedback signal collection component. This generates high-pressure gas through the gas generation activation component within the extinguishing agent storage component, which then sprays perfluorohexanone extinguishing agent through the atomizing nozzle 3 to extinguish the battery fire. Since perfluorohexanone is a liquid at room temperature, it is non-conductive in both its liquid and gaseous states. Under conditions of one atmosphere, 21°C, and a 2.7mm electrode spacing, the insulation breakdown voltage of perfluorohexanone saturated vapor is 15.6kV, which is 2.3 times that of dry nitrogen. Under the same conditions, the breakdown voltage of liquid perfluorohexanone is 48kV. Perfluorohexanone's properties are similar to many first-generation halon alternatives, but there is a key difference: this compound is a liquid under normal environmental conditions. Perfluorohexanone has a boiling point of 49.2°C, and its vapor pressure is much lower than other extinguishing agents. Its heat of vaporization is very low, approximately 25 times lower than water. This, combined with its vapor pressure being 12 times higher than water, leads to… Perfluorohexanone evaporates more than 50 times faster than water, allowing the reagent to rapidly transform from a liquid to a gaseous state. This results in superior fire extinguishing performance, effectively solving the problem that traditional dry powder and fixed large-scale fire extinguishing systems cannot fundamentally interrupt the reaction. During installation, the thermal wire 6 can be laid inside the battery. When the thermal wire 6 encounters high temperature or open flame, it automatically triggers the gas generation start-up component inside the fixed base 1, causing the perfluorohexanone extinguishing agent inside the fixed base 1 to be sprayed out through the atomizing nozzle 3 for fire extinguishing. When the thermal component receives a heat signal, it can be detected through the heat signal collection device. The device 5 sends a heat signal to the gas generation start-up component, controlling the gas generation start-up component to generate high-pressure gas, which sprays out the perfluorohexanone extinguishing agent stored inside the fixed base 1. When the extinguishing agent storage container 2 is installed, the orientation of the atomizing nozzle 3 can be controlled by the adjusting arm 9, so that the atomizing nozzle 3 is oriented towards the battery, thereby making the spray direction of the perfluorohexanone extinguishing agent more accurate. When fixing the fixed base 1 with screws, by setting an embedded washer 10 inside the fixed base 1, the contact area between the screw and the fixed base 1 can be increased, thereby making the screw fixation effect on the fixed base 1 better.

[0028] 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 illustrative of the principles of this 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 prefabricated perfluorohexanone fire extinguishing device, characterized in that: This includes extinguishing agent storage components, gas generation and activation components, feedback signal collection components, and heat-sensitive components; The fire extinguishing agent storage assembly is mainly used to store and release fire extinguishing media in response to fire accidents; The gas generation start-up assembly includes a gas generator, a control system, and safety devices; The gas generation start-up component is responsible for generating the required gas; The control system is used to monitor and regulate the operating status of the gas generator to ensure a stable gas supply. The safety device is used to ensure the safe operation of the gas-generating start-up assembly.

2. The prefabricated perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The extinguishing agent storage assembly includes a fixed base (1), an extinguishing agent storage container (2), and an atomizing nozzle (3); the extinguishing agent storage container (2) is fixed to the top of the fixed base (1); the atomizing nozzle (3) is connected to the inside of the extinguishing agent storage container (2); the fixed base (1) has four round holes inside, and the round holes are located at the corners of the fixed base (1).

3. A prefabricated perfluorohexanone fire extinguishing device according to claim 2, characterized in that: The thermal component includes a connecting line (4), a thermal signal collection device (5), and a thermal wire (6); the connecting line (4) is connected to the gas generation start-up component; the other end of the connecting line (4) is connected to the thermal signal collection device (5); and the thermal wire (6) is connected to the thermal signal collection device (5).

4. A prefabricated perfluorohexanone fire extinguishing device according to claim 3, characterized in that: The feedback signal collection component includes a feedback signal terminal (7) and a feedback line (8); the feedback line (8) is connected to the thermal signal collection device (5); the other end of the feedback line (8) is connected to the feedback signal terminal (7).

5. A prefabricated perfluorohexanone fire extinguishing device according to claim 4, characterized in that: The atomizing nozzle (3) is connected to the extinguishing agent storage container (2) via an adjusting arm (9); the adjusting arm (9) is made of aluminum alloy.

6. A prefabricated perfluorohexanone fire extinguishing device according to claim 5, characterized in that: The fixed base (1) has a plurality of embedded washers (10) fixed inside; the embedded washers (10) are set at the positions of the corresponding internal round holes of the fixed base (1).

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