Composite non-stored-pressure two-phase perfluorohexanone fire extinguishing device

Abstract

The invention discloses a composite non-stored-pressure double-phase perfluorohexanone fire extinguishing device, and belongs to the technical field of fire fighting equipment. The device comprises a cavity cover and a cavity, a material bag is arranged in the cavity, a liquid perfluorohexanone and perfluorohexanone capsule particle biphase fire extinguishing agent is packaged in the material bag, and a rupture disk is arranged on the outer surface of the material bag; a plurality of circular nozzles are formed in the top surface of the cavity cover. The leakage risk of a high-pressure container is avoided through the non-pressure-storage design, the fire extinguishing efficiency is improved through the synergistic effect of the two-phase fire extinguishing agent, liquid perfluorohexanone is rapidly vaporized to cover a fire source, and solid particles are slowly released and diffused to enlarge the contact area. When the environment temperature rises, the perfluorohexanone gasifies and explodes the material bag, and the fire extinguishing agent is sprayed out from the nozzle to achieve rapid fire extinguishing. The device is low in maintenance cost, high in safety and suitable for fire prevention and control of precision equipment or narrow space.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, in particular to a composite non-pressure storage two-phase perfluorohexanone fire extinguishing device. Background Art

[0002] Traditional fire extinguishing devices often utilize a pressure-storage design, using stored compressed gas to drive the release of the extinguishing agent. However, this design presents safety risks. Leakage or explosion could lead to more serious consequences, and traditional extinguishing agents also pose certain environmental and human health risks. Even existing new fire extinguishing devices that utilize a non-pressure-storage design have relatively complex triggering mechanisms and high investment costs, and the extinguishing medium storage format is relatively simple. Therefore, the development of a safe fire extinguishing device that utilizes a composite, environmentally friendly, two-phase extinguishing agent, a low-cost triggering mechanism, and is therefore of great significance.

[0003] Most portable fire extinguishers currently on the market use dry powder, carbon dioxide, foam, and other extinguishing agents, such as CN105617576A. While these extinguishing agents can effectively extinguish flames, they may cause secondary damage to equipment or the environment under certain circumstances. For example, dry powder fire extinguishing leaves behind powder that is difficult to clean, while carbon dioxide produces a strong cooling effect when used, potentially causing frostbite to certain precision equipment. Existing non-pressurized perfluorohexanone fire extinguishing devices not only have a single extinguishing agent form and must rely solely on external ignition tubes / electrolytic heat to trigger, but also have a complex design with ignition tubes, diaphragms, pistons, and gas generators, resulting in high costs. The device itself carries the risk of causing fires, and the complex structure can easily lead to the failure of the fire extinguishing function, making it impossible to put out fires in a timely manner, resulting in heavy losses.

[0004] In view of the problems of traditional and existing fire extinguishing devices, such as the single storage form of fire extinguishing agent which has certain impacts on the environment and human health, the high-pressure and inherently risky design of the trigger mechanism, and the high cost of system configuration, we are seeking a new type of environmentally friendly, dual-phase, safe and effective, composite structure, and low-cost fire extinguishing device. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient, safe, low-maintenance composite non-pressure storage fire extinguishing device, which improves fire extinguishing efficiency and reduces fire extinguishing agent waste through the synergistic effect of two-phase fire extinguishing agent (liquid perfluorohexanone and capsule particles), graded release mechanism and intelligent feedback system.

[0006] A composite non-pressure storage two-phase perfluorohexanone fire extinguishing device comprises a cavity cover and a cavity body. A material bag is placed in the cavity body, and the material bag is filled with a two-phase fire extinguishing agent of liquid perfluorohexanone and perfluorohexanone capsule particles. A bursting disc is provided on the outer surface, and a plurality of circular nozzles are provided on the top surface of the cavity cover for releasing the fire extinguishing agent. This device is a two-phase fire extinguishing device with non-pressure storage. Liquid perfluorohexanone and solid particles are encapsulated in the material bag to achieve the coordinated release of the two physical states of fire extinguishing agents. The non-pressure storage design avoids the need for regular pressure replenishment of traditional pressure storage devices and the risk of high-pressure containers being prone to aging and leakage, thereby reducing maintenance costs and safety hazards. The two-phase combination of liquid perfluorohexanone and perfluorohexanone capsule particles takes into account the rapid vaporization and fire source coverage capabilities of the liquid fire extinguishing agent and the slow release and diffusion characteristics of the capsule particles, thereby expanding the contact area between the fire extinguishing agent and the flame and improving the fire extinguishing efficiency. The circular nozzle design optimizes the uniformity of the fire extinguishing agent spray, reduces the local pressure concentration of the spray, and improves the fire extinguishing coverage range. When the ambient temperature is sensed to rise, the internal perfluorohexanone is quickly converted into a gaseous explosive bag, and the gas is instantly ejected from the circular nozzle on the top surface of the cavity cover to achieve rapid fire extinguishing.

[0007] A composite, non-pressurized, two-phase perfluorohexanone fire extinguishing device, whose bag is made of aluminum foil. Aluminum foil bags offer high and low temperature resistance, strong barrier properties, excellent three-proof properties, and excellent heat-sealing properties. The ductility and machinability of aluminum foil facilitate its formation into a sealed bag that conforms to the cavity shape, improving assembly efficiency.

[0008] A composite non-pressure storage two-phase perfluorohexanone fire extinguishing device has a cavity cover in the shape of a cuboid with a plurality of bendable lugs provided on both long sides and two mounting hole plates on the short sides of the cavity cover, one of which has a first hole groove.

[0009] A composite, non-pressurized, two-phase perfluorohexanone fire extinguishing device features a rectangular chamber with tab slots on both sides of its outer wide side and a second slot on one narrow side. The chamber and cover form a closed structure. To address the need for quick assembly of the cover and external connection interfaces, the cover structure has been optimized to enhance installation convenience and structural stability. To prevent leakage of the fire extinguishing agent, the chamber and cover must form a highly airtight seal, enhancing overall sealing performance through complementary structural design. The rectangular cover conforms to the regular shape of the chamber, facilitating standardized production and assembly. Bendable tabs snap into the chamber tab slots for quick locking, reducing the number of bolts and improving assembly efficiency. In extreme cases, where internal pressure may exceed the design limit, the tab design also serves as a final safety pressure relief channel to prevent a dangerous physical explosion. The second slot on the narrow side of the chamber aligns with the first slot on the cover, ensuring precise positioning for the cable entry hole. A rubber ring fills the gap, creating a double seal to prevent leakage of the fire extinguishing agent from the mounting interface.

[0010] A composite, non-pressurized, two-phase perfluorohexanone fire extinguishing device has rubber rings placed in the first and second slots, which cooperate with the first and second slots to form a wire hole. To address the need to integrate an external feedback system into the fire extinguishing device while preventing leakage of the extinguishing agent from affecting line safety, a sealed wire hole structure is designed to balance line connection and sealing requirements. The rubber ring fills the gap between the first and second slots, and its elastic deformation tightly wraps the wires, forming a dynamic seal. Even if the wires expand or contract slightly due to temperature changes, the sealing performance is maintained. The wire holes are centrally arranged to prevent wire exposure, reduce external environmental erosion of the wires, and extend the service life of the wires.

[0011] A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device, in which a feedback component is placed in the wire hole, and the feedback component is connected to the external feedback system through a wire. The feedback component includes a temperature switch and a temperature sensor, and the temperature sensor is tightly wrapped with a heat shrink tube and the temperature switch. In order to meet the demand for real-time feedback of the working status of the fire extinguishing device to link other fire protection systems or early warning, intelligent monitoring is achieved by integrating the feedback component. When the fire extinguishing device is started, the feedback component triggers an electrical signal to transmit the "device action" information to the automatic fire alarm system. When the device is in normal standby state, these contacts are in one state. When the device is started, the mechanical structure will trigger these contacts, causing their state to change. The feedback component and the feedback system can work together to realize linkage logic and improve the intelligence and coordination of fire handling. The feedback signal can also be used for system self-inspection or maintenance to confirm whether the electrical connection of the device is normal.

[0012] A composite, non-pressurized, two-phase perfluorohexanone fire extinguishing device. A temperature switch and temperature sensor are attached to the inner surface of the chamber cover, near the long side. The temperature switch and temperature sensor are attached to the circular nozzle to accurately measure temperature changes inside the extinguisher and provide real-time feedback to the feedback system.

[0013] A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device, the feedback component of which is a hollow cylindrical structure, with a temperature switch and a temperature sensor built into the cylinder. The feedback component also includes a fuse, and the surfaces of the fuse, temperature sensor, and temperature switch are covered with a second thermally conductive silicone sheet, which fills the cylindrical structure.

[0014] A composite non-pressure storage two-phase perfluorohexanone fire extinguishing device, wherein a first thermally conductive silicone sheet is attached to the outside of a material bag, and the first thermally conductive silicone sheet and a second thermally conductive silicone sheet are tightly bonded.

[0015] When a fire is caused by an overload or short circuit in the device's external circuits, the fuse will blow as the primary protective element. If flames persist after the fuse blows, the heat generated will be transferred through a thermal path to the bag containing perfluorohexanone fire extinguishing agent, prompting it to rapidly release the agent and extinguish the fire. Such small fires within the device can be quickly suppressed. In this scenario, the melting areas of the first and second thermally conductive silicone sheets will be primarily concentrated near the feedback component. Simultaneously, as the fuse blows and power is lost, the temperature sensor will detect a sudden drop in the temperature signal. Based on the fuse status, the specific melting location of the thermally conductive material, and the transient temperature signature recorded by the sensor, personnel can conduct post-incident investigations to trace the cause of the fire. If the fire is caused by an external device, heat will first act on the first thermally conductive silicone sheet at the top of the bag. This heat will then be transferred through the sheet to the bag, triggering the release of perfluorohexanone. Simultaneously, heat will be conducted laterally to the temperature sensor and fuse area. In this case, the primary melting area of ​​the first thermally conductive silicone sheet is located at the top of the bag. For small external fires, the temperature sensor can fully record the entire temperature data, providing a basis for subsequent analysis. In the event of a larger-scale fire, the second thermally conductive silicone sheet can significantly accelerate the transfer of heat to the fuse, driving it to blow quickly. This fusing event constitutes a key system action signal, triggering the external feedback system to save and record the operating data within the preset time period before the fuse blows, which is used for subsequent accident cause tracing and analysis. The second thermally conductive silicone sheet and the first thermally conductive silicone sheet have a thermal conductivity coefficient much higher than that of air, ensuring the rapid and efficient transfer of heat from the fire source to key components such as the material bag and fuse. This feature significantly optimizes the release response speed of the perfluorohexanone fire extinguishing agent and improves the fire control efficiency of the entire system.

[0016] A composite, non-pressurized, two-phase perfluorohexanone fire extinguishing device comprises a number 3 bag, a number 2 bag, and a number 1 bag, arranged in order from the outside in. Number 2 completely covers number 1, and number 3 completely covers number 2. Each of these bags is filled with a two-phase fire extinguishing agent consisting of liquid perfluorohexanone and perfluorohexanone capsules. Bursting discs are placed on the surface of number 3, number 2 on the surface of number 2, and number 1 on the surface of number 1. A hierarchical response mechanism enables on-demand release of the perfluorohexanone extinguishing agent. When a fire occurs, the outermost number 3 bag is heated first, causing the perfluorohexanone between the number 3 and number 2 bags to expand and break through the bursting discs, releasing the perfluorohexanone to the outside for initial fire extinguishing. If the fire is successfully extinguished and the temperature drops significantly, the number 1 and number 2 bags remain sealed and require no further action. If the temperature doesn't drop significantly after initial fire extinguishing, the perfluorohexanone between bag No. 2 and bag No. 1 will expand due to the heat, breaking through the rupture disc No. 2 and implementing secondary fire extinguishing. Similarly, if the fire is under control at this stage, bag No. 1 can remain intact. Conversely, if the temperature still doesn't drop significantly, the perfluorohexanone in bag No. 1 will expand and break through the rupture disc No. 1, extinguishing the fire in its final stages. Compared to a single-layer bag structure, this segmented design allows for gradual release of extinguishing agent based on fire size, avoiding over-discharge and significantly reducing unnecessary perfluorohexanone consumption. This ensures that the intensity of extinguishing agent release dynamically matches the fire's development, maximizing firefighting effectiveness.

[0017] The advantages of the present invention are: the advantages of the present invention are that through the non-pressure storage design combined with the two-phase fire extinguishing agent (liquid perfluorohexanone and capsule particles) packaged in aluminum foil bags, safe and maintenance-free storage, efficient coordinated fire extinguishing (taking into account both rapid vaporization coverage and slow-release diffusion) and on-demand release of fire extinguishing agent are achieved; the layered bags and multi-stage bursting disc structure ensure that the fire extinguishing agent is accurately released in grades according to the scale of the fire, greatly reducing waste; at the same time, the optimized sealed wire hole design, the intelligent monitoring system with feedback components (temperature sensor, fuse) and the rapid heat conduction path composed of thermally conductive silicone sheets significantly improve the system's sealing, response speed, status feedback reliability and subsequent traceability, and with the help of the bendable ears and slot structure of the cavity cover / cavity, rapid installation and potential pressure relief are achieved, ultimately achieving the comprehensive goals of safety, reliability, high efficiency and energy saving, intelligent maintenance and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0019] Figure 1This is an exploded view of Example 1 of the overall device of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall device structure of the present invention.

[0021] Figure 3 Schematic diagram of the cavity cover of the present invention.

[0022] Figure 4 Schematic diagram of the feedback component of the present invention.

[0023] Figure 5 This is a schematic diagram of the feedback component layout of Example 1 of the present invention.

[0024] Figure 6 This is a structural diagram of the feedback component of Example 2 of the present invention.

[0025] Figure 7 This is a schematic diagram of the material bag structure of Example 3 of the present invention.

[0026] Description of the drawings: 1- cavity cover, 2- cavity, 3- material bag, 3a- bursting disc, 4- feedback assembly, 5- rubber ring, 6- first thermally conductive silicone sheet, 11- bendable ear piece, 12- circular nozzle, 13- first hole slot, 21- ear piece slot, 22- second hole slot, 31- material bag No. 1, 32- material bag No. 2, 33- material bag No. 3, 31a- bursting disc No. 1, 32a- bursting disc No. 2, 41- wire, 42- temperature sensor, 43- heat shrink tube, 44- second thermally conductive silicone sheet, 45- fuse, 46- temperature switch. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The following first describes the concepts involved in this application with reference to the accompanying drawings. It should be noted that the following description of each concept is intended only to make the content of this application easier to understand and does not limit the scope of protection of this application. At the same time, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The following detailed description of this application will be made with reference to the accompanying drawings and in conjunction with the embodiments.

[0029] Example 1: Refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3As shown, the device comprises a rectangular chamber 2 and a matching rectangular chamber cover 1. The chamber cover 1 has bendable tabs 11 on both long sides, a number of circular nozzles 12 evenly spaced on the top surface, and first slots 13 on the short sides. An aluminum foil bag 3 is placed inside the chamber 2, with a bursting disc 3a pre-installed on its outer surface.

[0030] Refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown, the material bag 3 encapsulates a two-phase fire extinguishing agent, which is liquid perfluorohexanone and perfluorohexanone capsule particles. The material bag 3 made of aluminum foil takes advantage of its high and low temperature resistance, strong barrier properties, good three-proof properties and good heat sealing properties, which is easy to process and shape and tightly fits the internal shape of the cavity 2. Ear slots 21 are provided on both sides of the outer wide surface of the cavity 2 corresponding to the positions of the ear pieces 11, and a second hole groove 22 is provided on one of the narrow sides. During assembly, the cavity cover 1 covers the cavity 2, and the bendable ear piece 11 of the cavity cover 1 is bent and inserted into the ear slot 21 of the cavity 2 to achieve rapid locking, forming a highly sealed closed structure. At the same time, the first hole groove 13 of the cavity cover 1 and the second hole groove 22 on the narrow side of the cavity 2 are precisely aligned.

[0031] Refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown, the device utilizes a non-pressure storage design, resulting in a pressure-free internal environment under normal conditions. When the ambient temperature rises to a set range, the liquid perfluorohexanone in the bag 3 rapidly vaporizes due to heat, generating a large amount of gas that causes a sharp increase in internal pressure, ultimately rupturing the rupture disc 3a on the outer surface of the bag 3. The instantaneously released high-pressure gaseous perfluorohexanone, carrying the perfluorohexanone capsule particles within the bag 3, is ejected uniformly and rapidly outward through the circular nozzle 12 on the top surface of the chamber cover 1. During this process, the liquid perfluorohexanone, thanks to its rapid vaporization, effectively covers the fire source and reduces the temperature, achieving immediate fire extinguishing. Simultaneously, the ejected perfluorohexanone capsule particles utilize their sustained-release and diffusion properties to more fully fill spaces, penetrate blind spots, and engage flames over a wide area, expanding the fire extinguishing coverage and effectively suppressing rekindling. The dual-phase combination of liquid perfluorohexanone and capsule particles achieves synergistic benefits, significantly improving overall fire extinguishing efficiency. The circular nozzle 12 further optimizes the uniformity of the extinguishing agent spray, avoiding localized high-pressure spraying and unevenness. In extreme cases (such as exceeding the design temperature rise or abnormally intense gasification), the snap-fit ​​structure between the lug 11 and the lug slot 21 may serve as the final safety pressure relief channel.

[0032] Refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5As shown, to enable device status monitoring and linkage with the fire protection system, the temperature switch 46 and temperature sensor 42 of the feedback assembly 4 are tightly adhered to the inner surface of the chamber cover 1 near one long side (particularly near the circular nozzle 12). These temperature switch 46 and temperature sensor 42 are wrapped tightly with heat shrink tubing to enhance reliability. The wire 41 of the feedback assembly 4 passes through a wire passage formed by the precisely aligned first slot 13 of the chamber cover 1 and the second slot 22 of the chamber body 2. A rubber ring 5 is placed within this passage, elastically deforming to tightly wrap around the wire 41 and provide a dynamic seal, effectively preventing extinguishing agent leakage or environmental corrosion. Wire 41 is connected to the external feedback system. The temperature sensor 42 monitors temperature changes within the chamber cover 1 in real time. When the device is activated (i.e., the discharge of extinguishing agent causes a dramatic change in the internal environment), the state of the temperature switch 46 (e.g., normally open / normally closed contact) is triggered, generating an electrical signal indicating "device actuation." This signal is transmitted to the external feedback system via wire 41 and is used to trigger the sound and light alarm of the automatic fire alarm system, shut down the air conditioning / ventilation equipment, report status information to the monitoring platform, and other operations, thereby improving the coordination and intelligence of fire handling and the self-check function of the system records.

[0033] Example 2: Refer to the attached Figure 6 As shown, this embodiment builds upon the previously described non-pressurized two-phase fire extinguishing device by improving its feedback assembly 4 with an integrated, efficient heat conduction design. This optimizes response to internal short circuits and external fires in the distribution cabinet and enables post-incident cause tracing. The core improvement lies in the design and integration of dual thermally conductive silicone sheets within the feedback assembly 4. The feedback assembly 4 utilizes a hollow cylindrical structure, compactly integrating a temperature switch 46, a temperature sensor 42, and a critical fuse 45. To ensure these sensitive components efficiently synchronize with external heat fluctuations, they are completely encapsulated within the cylinder by a second thermally conductive silicone sheet 44. This silicone sheet 44 not only provides electrical insulation but, more importantly, its excellent thermal conductivity (far superior to that of air) serves as the core channel for heat transfer. Furthermore, a first thermally conductive silicone sheet 6 is securely adhered to the outer surface of the aluminum foil bag 3 encapsulating the two-phase fire extinguishing agent. This layer of silicone sheet 6 and the second thermally conductive silicone sheet 44 that wraps the components inside the cylinder of the feedback component 4 are tightly bonded in the key area inside the cavity cover 1, thereby establishing an efficient, low-thermal-resistance direct heat conduction path between the key area of ​​the material bag 3 and the internal components of the feedback component 4.

[0034] When an electrical fault occurs in equipment within the cabinet due to circuit overload or short circuit, generating sparks or flames, fuse 45, the primary element in the protective circuit, will blow very quickly (for example, in 0.1 seconds), interrupting the current flow. Even after blowing, a small flame may continue to form at the localized fault point. The heat generated by this flame is efficiently transferred to the material bag 3 via the conductive path formed by the directly bonded second thermally conductive silicone sheet 44 and the first thermally conductive silicone sheet 6. This rapid influx of heat causes the liquid perfluorohexanone in the material bag 3 to rapidly vaporize and break through the bursting disc 3a, rapidly releasing the fire extinguishing agent and extinguishing the fire. In this scenario, the melted areas of the first thermally conductive silicone sheet 6 and the second thermally conductive silicone sheet 44 are primarily concentrated near the feedback assembly 4. Simultaneously, the blowing of fuse 45 causes a significant, instantaneous drop in the signal detected by the temperature sensor 42 (such as the line current or associated temperature measurement).

[0035] Refer to the attached Figure 2 , Attachment Figure 6 As shown, if the fire originates from outside the device (e.g., a fire in an adjacent device), heat will first be applied to the cavity cover 1 or the exterior of cavity 2. This heat is rapidly transferred through the housing and preferentially absorbed by the first thermally conductive silicone sheet 6 attached to the outer surface of the material bag 3. This heat then directly and efficiently heats the material bag 3, triggering the release of the perfluorohexanone fire extinguishing agent. Simultaneously, heat is also transferred through the cavity 2 structure to the feedback component 4, heating its outer wall and the second thermally conductive silicone sheet 44 within. For small-scale external fires (extinguished before fuse 45 operates), the temperature sensor 42 can fully record the entire temperature rise and fall process. In the event of a large-scale external fire, the second thermally conductive silicone sheet 44 within the fuse 45 significantly accelerates heat transfer to the fuse 45, causing it to open quickly. In addition to providing physical power-off protection, the fuse itself and its precise timing constitute a critical, unsimulatable system action signal (data interruption point). This signal will trigger the external feedback system to immediately and automatically save and record key operating data (such as current, voltage, and temperature readings) within a preset time period (such as 30 seconds) before the fuse 45 is operated.

[0036] The dual thermally conductive silicone pads significantly increase the device's sensitivity to thermal events, ensuring that fire extinguishing agents are triggered and released within a very short period of time, regardless of internal or external fire sources. This significantly enhances fire control effectiveness. More importantly, post-incident analysts can trace the source of an incident by combining the following multi-dimensional physical and electronic evidence: Example 3: Refer to the attached Figure 7As shown, this embodiment provides a segmented bag structure (3), which utilizes a hierarchical response mechanism to achieve on-demand release of the fire extinguishing agent perfluorohexanone. When a fire occurs, the outermost bag (3), located in the third layer, is heated first, causing the perfluorohexanone inside to expand and break through the rupture disc (3a) to release the perfluorohexanone, providing initial fire suppression. If the fire is successfully extinguished and the temperature drops significantly, the first and second bags (31, 32) remain sealed and require no further action.

[0037] If the temperature doesn't show a clear downward trend after initial fire extinguishing (indicating a persistent fire), the perfluorohexanone between bag 2 (32) and bag 1 (31) will expand due to the heat, breaking through rupture disc 2 (32a) and implementing secondary fire extinguishing. Similarly, if the fire is under control at this stage, bag 1 (31) can remain intact. Conversely, if the temperature still doesn't drop significantly, the perfluorohexanone in bag 1 (31) will expand and break through rupture disc 1 (31a) for final fire extinguishing. Compared to a single-layer bag 3 structure, this segmented design allows for gradual release of extinguishing agent based on fire severity, avoiding over-discharge and significantly reducing unnecessary perfluorohexanone consumption. This ensures that the intensity of extinguishing agent release dynamically matches the fire's development, maximizing fire extinguishing effectiveness.

[0038] It should also be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and do not impose any form of limitation on the implementation methods of the technology of the present invention. Any person skilled in the art may make slight changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0040] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A composite non-pressure storage two-phase perfluorohexanone fire extinguishing device, comprising a cavity cover (1) and a cavity body (2), characterized in that: A material bag (3) is placed in the cavity (2), and the material bag (3) is filled with a two-phase fire extinguishing agent consisting of liquid perfluorohexanone and perfluorohexanone capsule particles. A bursting disc (3a) is provided on the outer surface of the material bag, and a plurality of circular nozzles (12) are provided on the top surface of the cavity cover (1) for releasing the fire extinguishing agent.

2. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The material of the material bag (3) is aluminum foil.

3. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The cavity cover (1) is in the shape of a rectangular parallelepiped, with a plurality of bendable lugs (11) provided on both long sides thereof, and two mounting hole plates provided on the short sides of the cavity cover (1), one of the short sides of which is provided with a first hole slot (13).

4. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 3, characterized in that: The cavity (2) is in the shape of a rectangular parallelepiped, with ear slots (21) provided on both sides of its outer wide side, and a second hole slot (22) provided on one narrow side. The cavity (2) cooperates with the cavity cover (1) to form a closed structure.

5. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 4, characterized in that: A rubber ring (5) is placed in the first hole groove and the second hole groove, and the rubber ring (5) cooperates with the first hole groove (13) and the second hole groove (22) to form a wire hole.

6. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 5, characterized in that: A feedback component (4) is placed in the wire hole, and the feedback component (4) is connected to an external feedback system via a wire (41). The feedback component (4) includes a temperature switch (46) and a temperature sensor (42). The head portion of the temperature sensor (42) is embedded in the rubber sleeve of the temperature switch (46). The temperature switch (46) and the temperature sensor (42) are tightly wrapped by a heat shrink tube (43).

7. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 6, characterized in that: The temperature switch (46) and the temperature sensor (42) are adhered to the inner surface of the cavity cover (1) close to the long side.

8. The composite non-pressure storage two-phase perfluorohexanone fire extinguishing device according to claim 6, characterized in that: The feedback component (4) is a hollow cylindrical structure, and the temperature switch (46) and the temperature sensor (42) are built into the cylinder; the feedback component (4) also includes a fuse (45), and the surfaces of the fuse (45), the temperature sensor (42), and the temperature switch (46) are covered with a second thermally conductive silicone sheet (44), and the second thermally conductive silicone sheet (44) fills the cylindrical structure.

9. A composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 8, characterized in that: The material bag (3) is attached to the outside of the first heat-conducting silicone sheet (6), and the first heat-conducting silicone sheet (6) and the second heat-conducting silicone sheet (44) are tightly bonded.

10. The composite non-pressure-storage two-phase perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The material bag (3) comprises a No. 3 material bag (33), a No. 2 material bag (32) and a No. 1 material bag (31) arranged in sequence from the outside to the inside, the No. 2 material bag (32) completely covers the No. 1 material bag (31), and the No. 3 material bag (33) completely covers the No. 2 material bag (32); the No. 3 material bag (33), the No. 2 material bag (32) and the No. 1 material bag (31) are all filled with a two-phase fire extinguishing agent consisting of liquid perfluorohexanone and perfluorohexanone capsule particles; a bursting disc (3a) is arranged on the surface of the No. 3 material bag (33), a No. 2 bursting disc (32a) is arranged on the surface of the No. 2 material bag (32), and a No. 1 bursting disc (31a) is arranged on the surface of the No. 1 material bag (31).

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