Portable novel condensed aerosol fire extinguishing device

Abstract

The invention relates to the technical field of power operation and maintenance, and particularly discloses a portable novel condensed aerosol fire extinguishing device, which comprises: a handheld shell, which comprises a combustion cooling chamber, a diffusion injection chamber provided with an injection hole, and a chamber communicating pipe; the double-layer storage tank comprises an outer-layer tank body, an inner-layer tank body located in the outer-layer tank body, an in-tank heat absorption and energy storage medium located between the outer-layer tank body and the inner-layer tank body, and a solid fire extinguishing medium located in the inner-layer tank body and used for generating fire extinguishing aerosol after combustion. The cooling sleeve comprises an inner-layer pipeline, an outer-layer pipeline and an in-pipe heat absorption and energy storage medium; the inner-layer pipeline is communicated with the inner-layer tank body to the cavity communicating pipe; the outer-layer pipeline is arranged outside the inner-layer pipeline in a sleeving manner; and the in-pipe heat absorption and energy storage medium is positioned between the outer-layer pipeline and the inner-layer pipeline. According to the portable novel condensed aerosol fire extinguishing device, the temperature of the shell can be effectively controlled, so that handheld directional spraying is achieved, and then the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power operation and maintenance, and in particular to a portable novel condensing aerosol fire extinguishing device. Background Art

[0002] Condensing aerosol fire extinguishing devices, also known as "thermal aerosol fire extinguishers," are fire extinguishing devices that suppress combustion by releasing an aerosol fire extinguishing agent (such as solid particles or gas). Their operating principle is generally based on the thermochemical reaction of the fire extinguishing agent. After activation, combustion or decomposition reactions produce large amounts of inert gas and chemical inhibitors, rapidly extinguishing the flames. However, existing thermal aerosol fire extinguishers have the following significant drawbacks in practical applications:

[0003] (1) High shell temperature: Due to the large amount of heat released during the reaction of the fire extinguishing agent, the temperature of the fire extinguisher shell rises sharply, and may even exceed the safety threshold. This makes it difficult for the operator to hold the fire extinguisher for a long time, and the risk of burns may affect the fire extinguishing efficiency, especially in an emergency.

[0004] (2) Insufficient directional fire extinguishing capability: The high temperature shell limits the operator's adjustment of the spray angle, resulting in the fire extinguishing agent being unable to be effectively concentrated on the fire source, reducing the fire extinguishing effect.

[0005] Therefore, there is an urgent need for a condensing aerosol fire extinguisher that can effectively control the shell temperature so as to achieve handheld directional injection and improve fire extinguishing efficiency.

[0006] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Summary of the Invention

[0007] An object of the present invention is to provide a novel portable condensing aerosol fire extinguishing device that can effectively control the shell temperature so as to achieve handheld directional spraying and thereby improve fire extinguishing efficiency.

[0008] To achieve the above objectives, the present invention provides a portable novel condensing aerosol fire extinguishing device, comprising:

[0009] A handheld housing, the handheld housing comprising a combustion cooling chamber, a diffusion injection chamber provided with an injection hole, and a chamber connecting pipe connected to the diffusion injection chamber;

[0010] A double-layer storage tank, comprising an outer tank body, an inner tank body located inside the outer tank body, an internal heat-absorbing energy storage medium located between the outer tank body and the inner tank body, and a solid fire extinguishing medium located within the inner tank body for generating a fire extinguishing aerosol after combustion;

[0011] The cooling jacket comprises an inner pipe connecting the inner tank body to the chamber connecting pipe, an outer pipe sleeved outside the inner pipe, and an inner-tube heat-absorbing energy storage medium located between the outer pipe and the inner pipe.

[0012] Optionally, a partition space is provided between the outer wall of the double-layer storage tank and the inner wall of the combustion cooling chamber, and a thermal insulation pad is provided in the partition space to limit direct contact between the outer wall of the double-layer storage tank and the inner wall of the combustion cooling chamber.

[0013] Optionally, the thermal pad is a silicone pad, a rubber pad, or a mica pad.

[0014] Optionally, the cooling jacket is spiral-shaped.

[0015] Optionally, a hollow space is formed in the middle of the cooling jacket, and the portable novel condensing aerosol fire extinguishing device further includes:

[0016] an ignition device, the ignition device being mounted and fixed in the hollow space, with an ignition head extending into the inner tank body;

[0017] A control button is mounted on the handheld housing and is electrically connected to the ignition device.

[0018] Optionally, a conical diffusion cover is provided in the diffusion injection chamber, and the diameter of the conical diffusion cover gradually increases from the chamber connecting pipe to the injection hole.

[0019] Optionally, at least two partition plates are provided inside the conical diffusion cover, and each of the partition plates is provided with a plurality of air holes for the fire extinguishing aerosol to pass through.

[0020] Optionally, a terminal cooling chamber is formed between the outer wall of the conical diffusion cover and the inner wall of the diffusion injection chamber, and the terminal cooling chamber is filled with a terminal heat absorption energy storage medium.

[0021] Optionally, the phase change temperatures of the heat absorbing energy storage medium in the tank, the heat absorbing energy storage medium in the tube, and the heat absorbing energy storage medium at the end decrease in this manner.

[0022] Optionally, the handheld housing is provided with a detachable sealing plug for injecting the terminal heat absorption energy storage medium into the terminal cooling chamber.

[0023] The present invention provides a novel portable condensing aerosol fire extinguishing device. The high temperature generated by the reaction of the solid extinguishing medium is first absorbed by the heat-absorbing energy storage medium within the double-layer storage tank. The phase change material or high-specific heat capacity medium between the inner and outer tanks stores a large amount of heat through phase change or heat capacity, significantly reducing heat transfer from the inner tank to the outside. Subsequently, as the high-temperature aerosol flows through the cooling jacket, the heat-absorbing energy storage medium within the jacket further absorbs heat, maintaining the outer wall temperature of the pipe within an acceptable range for human operators.

[0024] The reduced housing temperature allows the operator to hold the device steady for extended periods, allowing precise control of the aerosol's spray direction and coverage through the diffuser chamber, resulting in highly effective, targeted firefighting. The cooled aerosol maintains sufficient velocity and firefighting activity, focusing its action on the fire source through the optimized design of the spray chamber. This significantly improves firefighting efficiency while addressing high-temperature safety concerns. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order 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 use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a portable novel condensing aerosol fire extinguishing device provided in an embodiment.

[0027] In the picture:

[0028] 1. Handheld housing; 101. Combustion cooling chamber; 102. Diffusion injection chamber; 1021. Injection hole; 1022. Terminal cooling chamber; 103. Chamber connecting pipe;

[0029] 2. Double-layer storage tank; 201. Outer tank body; 202. Inner tank body; 203. Heat-absorbing energy storage medium in the tank; 204. Solid fire extinguishing medium;

[0030] 3. Cooling jacket; 301. Inner pipe; 302. Outer pipe; 303. Heat-absorbing energy storage medium in the pipe;

[0031] 4. Thermal insulation pads;

[0032] 5. Ignition device;

[0033] 6. Control buttons;

[0034] 7. Conical diffuser;

[0035] 8. Separator;

[0036] 9. Removable sealing plug. DETAILED DESCRIPTION

[0037] Reference to "embodiments" in the present invention means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present invention, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0038] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The use of relevant terms herein is only for describing specific embodiments and is not intended to limit the present invention.

[0039] In the description of the present invention, the term "and / or" is used to describe a logical relationship between objects, indicating that three possible relationships exist. For example, A and / or B means: A exists, B exists, and both A and B exist. Furthermore, the character " / " generally indicates that the objects are in a logical "or" relationship.

[0040] In the present invention, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0041] Without further restrictions, in the present invention, the words "include", "comprise", "have" or other similar expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0042] Consistent with the understanding in the Examination Guidelines, in the present invention, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of the present invention, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0043] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention.

[0044] Unless otherwise expressly specified or limited, in the description of the embodiments of the present invention, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection between two elements or the interaction relationship between two elements. For those skilled in the art of the technology to which the present invention belongs, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0045] See also Figure 1 The present invention provides a portable new type of condensing aerosol fire extinguishing device, comprising:

[0046] A handheld housing 1 comprising a combustion cooling chamber 101, a diffusion injection chamber 102 having an injection hole 1021, and a chamber connecting pipe 103 connected to the diffusion injection chamber 102;

[0047] A double-layer storage tank 2, comprising an outer tank body 201, an inner tank body 202 located within the outer tank body 201, an internal heat-absorbing energy storage medium 203 located between the outer tank body 201 and the inner tank body 202, and a solid fire extinguishing medium 204 located within the inner tank body 202 for generating a fire extinguishing aerosol after combustion;

[0048] The cooling jacket 3 includes an inner layer pipe 301 connecting the inner layer tank body 202 to the chamber connecting pipe 103, an outer layer pipe 302 sleeved on the outside of the inner layer pipe 301, and an in-tube heat absorption energy storage medium 303 located between the outer layer pipe 302 and the inner layer pipe 301.

[0049] Generally, the main component of solid fire extinguishing medium 204 is a combination of an oxidant (such as potassium nitrate or nitrocellulose) and a combustible agent. The composition and combustion parameters of solid fire extinguishing medium 204 are not the focus of this invention and are not described in detail. Optionally, a fragile film can be used to wrap solid fire extinguishing medium 204 to prevent leakage. The fragile film burns between solid fire extinguishing medium 204 and the igniter to prevent interference with fire extinguishing.

[0050] The working process of the portable novel condensing aerosol fire extinguishing device provided by the present invention is as follows:

[0051] S10: Startup phase:

[0052] When the device is activated, the solid fire extinguishing medium 204 (such as a composite oxidant containing potassium / strontium salts) in the inner tank 202 is ignited, causing a violent thermochemical reaction to generate a high-temperature fire extinguishing aerosol (inert gas, metal particles and chemical inhibitors).

[0053] S20: Heat absorption and transfer:

[0054] Heat absorbing energy storage medium 203 inside the tank: The heat released by the fire extinguishing reaction is first absorbed by the heat absorbing energy storage medium 203 (such as phase change material or heat transfer oil) inside the tank between the outer tank body 201 and the inner tank body 202, and the temperature of the inner tank body 202 is reduced through phase change or heat capacity.

[0055] Heat-absorbing energy storage medium 303 in the tube: When the high-temperature aerosol flows through the inner tube 301 to the chamber connecting tube 103, the heat-absorbing energy storage medium 303 in the tube between the outer tube 302 and the inner tube 301 further absorbs heat, reducing the temperature of the outer wall of the tube.

[0056] S30: Aerosol Cooling and Jetting:

[0057] The high-temperature aerosol is cooled by the cooling sleeve 3 and enters the chamber connecting pipe 103 , then enters the diffusion injection chamber 102 through the chamber connecting pipe 103 , and is finally directedly ejected from the injection hole 1021 under the diffusion effect of the diffusion injection chamber 102 .

[0058] The present invention effectively solves the problems in the background art through a double-layer cooling structure and a thermal isolation design.

[0059] The high temperature generated by the reaction of solid fire extinguishing medium 204 is first absorbed by the heat-absorbing energy storage medium 203 within the double-layer storage tank 2. The phase-change material or high-specific-heat-capacity medium between the inner tank 202 and the outer tank 201 stores a large amount of heat through phase change or heat capacity, significantly reducing heat transfer from the inner tank 202 to the outside. Next, as the high-temperature aerosol flows through the cooling jacket 3, the heat-absorbing energy storage medium 303 within the jacket further absorbs heat, maintaining the pipe's outer wall temperature within an acceptable range.

[0060] The reduced housing temperature allows the operator to hold the device steady for extended periods, while the diffuser spray chamber 102 precisely controls the spray direction and coverage of the fire-extinguishing aerosol, achieving highly effective, targeted firefighting. The cooled aerosol maintains sufficient velocity and fire-extinguishing activity, and the optimized spray chamber concentrates its action on the fire source, significantly improving firefighting efficiency while addressing high-temperature safety hazards.

[0061] In this embodiment, a space is provided between the outer wall of the double-layer storage tank 2 and the inner wall of the combustion and cooling chamber 101. A thermal insulation pad 4 is provided in the space to prevent direct contact between the outer wall of the double-layer storage tank 2 and the inner wall of the combustion and cooling chamber 101. Optionally, the thermal insulation pad is a silicone pad, a rubber pad, or a mica pad.

[0062] The heat-insulating pad 4 prevents the outer wall of the double-layer storage tank 2 from directly contacting the inner wall of the combustion cooling chamber 101, thereby reducing the heat transferred from the double-layer storage tank 2 to the handheld housing 1, thereby ensuring that the temperature of the handheld housing 1 is not too high.

[0063] In this embodiment, the cooling jacket 3 is spiral-shaped. The spiral structure can achieve a longer pipe length in a limited space, thereby extending the cooling time of the fire extinguishing aerosol in the cooling jacket 3 and optimizing the cooling effect of the cooling jacket 3.

[0064] Furthermore, a hollow space is formed in the middle of the cooling jacket 3, and the portable novel condensing aerosol fire extinguishing device further includes:

[0065] An ignition device 5 is installed and fixed in the hollow space, and an ignition head extends into the inner tank body 202;

[0066] A control button 6 is mounted on the handheld housing 1 and electrically connected to the ignition device 5 .

[0067] Specifically, controlling the ignition device 5 to ignite the solid fire extinguishing medium 204 via the control button 6 is conventional technology. The specific structure of the control button 6 and the ignition device 5 is not the focus of the present invention and is not described in detail. The key point of the present invention is that the ignition device 5 is disposed within the hollow space enclosed by the spiral cooling jacket 3, which greatly improves the overall structural compactness and facilitates hand-held and portability.

[0068] In this embodiment, a conical diffusion cover 7 is provided in the diffusion injection chamber 102 , and the diameter of the conical diffusion cover 7 gradually increases from the chamber connecting pipe 103 to the injection hole 1021 .

[0069] The conical diffusion cover 7 plays the following key roles in the portable new condensing aerosol fire extinguishing device:

[0070] (1) Optimizing aerosol distribution

[0071] The conical structure (the diameter gradually increases from the chamber connecting pipe 103 to the injection hole 1021) can gradually diffuse the high-speed flowing fire extinguishing aerosol from a concentrated state to form a uniform fan-shaped coverage area.

[0072] Avoid excessive concentration of aerosols that may lead to local waste of fire extinguishing agents, or reduce fire extinguishing efficiency due to insufficient dispersion.

[0073] (2) Enhanced directional injection capability

[0074] The gradually expanding design of the conical diffusion cover 7 guides the aerosol to spray stably along a preset direction, reducing turbulence and scattering, so that the fire extinguishing agent can cover the fire source more accurately.

[0075] In conjunction with the spray holes 1021 of the diffusion spray chamber 102, a controllable spray angle (such as 30°-60°) is formed, which facilitates the operator to adjust the fire extinguishing range.

[0076] (3) Maintaining the activity of fire extinguishing agents

[0077] When the aerosol decelerates and diffuses in the conical space, the contact time with the cooled inner wall of the chamber increases, further reducing the temperature, but it will not cause excessive kinetic energy loss due to sudden expansion, ensuring that the fire extinguishing agent maintains sufficient flow rate and chemical activity.

[0078] (4) Compact structure

[0079] The conical design achieves efficient diffusion in a limited space without the need for additional complex structures, meeting the lightweight requirements of portable devices.

[0080] Optionally, at least two partitions 8 are provided within the conical diffuser 7, each of which is provided with a plurality of air holes for the passage of the fire-extinguishing aerosol. The partitions 8 divide the conical space into multiple channels, and the air holes allow the aerosol to pass through in layers, preventing localized overload of the extinguishing agent caused by concentrated injection and improving coverage uniformity. Furthermore, as the aerosol passes through the air holes, it comes into contact with the partitions 8, further dissipating heat and ensuring a safe injection temperature.

[0081] Furthermore, a terminal cooling chamber 1022 is formed between the outer wall of the conical diffuser 7 and the inner wall of the diffusion and injection chamber 102. This terminal cooling chamber 1022 is filled with a terminal heat-absorbing energy storage medium. This heat-absorbing medium (such as a phase change material) absorbs the residual heat of the aerosol before injection. Together with the double-layer storage tank 2 and the cooling jacket 3, it forms a three-stage thermal management system (reaction zone → pipeline → terminal), achieving full temperature control, preventing the outer wall of the diffusion and injection chamber 102 from heating up, and ensuring safe operation.

[0082] In this embodiment, the phase transition temperatures of the tank's internal heat-absorbing energy storage medium 203, the tube's internal heat-absorbing energy storage medium 303, and the terminal's internal heat-absorbing energy storage medium decrease in this order. For example, the tank's internal heat-absorbing energy storage medium 203 is a metal phase-change material (e.g., aluminum-silicon alloy) or a metal salt (e.g., sodium sulfate); the tube's internal heat-absorbing energy storage medium 303 is a liquid with a higher phase-change temperature, such as a thermal oil + graphene composite material; and the terminal's internal heat-absorbing energy storage medium is a liquid with a lower phase-change temperature, such as paraffin or water.

[0083] A three-stage heat-absorbing medium with decreasing phase transition temperatures (inside the tank, in the pipeline, and at the end) forms a gradient thermal management system: High-phase-transition-point materials (such as aluminum-silicon alloys) are used in the high-temperature zone to rapidly absorb reaction heat; thermal oil composites are used in the medium-temperature zone for continuous cooling; and paraffin wax / water is used in the low-temperature zone to capture residual heat. This design achieves precise, step-by-step temperature control, ensuring that the outer shell temperature remains below a safety threshold (e.g., 60°C) while preventing overcooling that could affect aerosol activity, ensuring both operational safety and firefighting effectiveness.

[0084] Optionally, the handheld housing 1 is provided with a detachable sealing plug 9 for injecting the terminal heat absorption energy storage medium into the terminal cooling chamber 1022 .

[0085] Open the sealing plug to inject the terminal heat-absorbing energy storage medium. Generally, after dual cooling inside the tank and through the pipes, the temperature of the handheld housing 1 is already within a temperature that is bearable by human hands. To reduce weight and improve portability, users with higher hand heat tolerance can omit the terminal heat-absorbing energy storage medium from injecting it into the terminal cooling chamber 1022. Users with lower hand heat tolerance can inject the terminal heat-absorbing energy storage medium in advance, allowing for immediate firefighting measures in the event of a fire.

[0086] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A new portable aerosol fire extinguishing device, characterized in that: include: A handheld housing (1), the handheld housing (1) comprising a combustion cooling chamber (101), a diffusion injection chamber (102) provided with an injection hole (1021), and a chamber connecting pipe (103) connected to the diffusion injection chamber (102); A double-layer storage tank (2), the double-layer storage tank (2) comprising an outer tank body (201), an inner tank body (202) located inside the outer tank body (201), an internal heat-absorbing energy storage medium (203) located between the outer tank body (201) and the inner tank body (202), and a solid fire extinguishing medium (204) located inside the inner tank body (202) for generating a fire extinguishing aerosol after combustion; A cooling jacket (3), the cooling jacket (3) comprising an inner layer pipe (301) connecting the inner layer tank body (202) to the chamber connecting pipe (103), an outer layer pipe (302) sleeved on the outside of the inner layer pipe (301), and an in-tube heat absorption and energy storage medium (303) located between the outer layer pipe (302) and the inner layer pipe (301).

2. The portable new type of condensing aerosol fire extinguishing device according to claim 1 is characterized in that: A spacing space is provided between the outer wall of the double-layer storage tank (2) and the inner wall of the combustion cooling chamber (101), and a heat insulating pad (4) is provided in the spacing space to limit direct contact between the outer wall of the double-layer storage tank (2) and the inner wall of the combustion cooling chamber (101).

3. The portable new type of condensing aerosol fire extinguishing device according to claim 2 is characterized in that: The thermal pad is a silicone pad, a rubber pad or a mica pad.

4. The portable new type of condensing aerosol fire extinguishing device according to claim 1 is characterized in that: The cooling jacket (3) is spiral-shaped.

5. The portable new type of condensing aerosol fire extinguishing device according to claim 4 is characterized in that: A hollow space is formed in the middle of the cooling sleeve (3), and the portable novel condensing aerosol fire extinguishing device further comprises: an ignition device (5), the ignition device (5) being installed and fixed in the hollow space, and an ignition head extending into the inner tank body (202); A control button (6), the control button (6) is mounted on the handheld housing (1) and electrically connected to the ignition device (5).

6. The portable new type of condensing aerosol fire extinguishing device according to claim 1 is characterized in that: A conical diffusion cover (7) is provided in the diffusion injection chamber (102), and the diameter of the conical diffusion cover (7) gradually increases from the chamber connecting pipe (103) to the injection hole (1021).

7. The portable new type of condensing aerosol fire extinguishing device according to claim 6 is characterized in that: At least two partition plates (8) are provided inside the conical diffusion cover (7), and each of the partition plates (8) is provided with a plurality of air holes for the fire extinguishing aerosol to pass through.

8. The portable new type of condensing aerosol fire extinguishing device according to claim 6 is characterized in that: A terminal cooling chamber (1022) is formed between the outer wall of the conical diffusion cover (7) and the inner wall of the diffusion injection chamber (102), and the terminal cooling chamber (1022) is filled with a terminal heat absorption energy storage medium.

9. The portable new type of condensing aerosol fire extinguishing device according to claim 8, characterized in that: The phase change temperatures of the heat absorbing energy storage medium (203) in the tank, the heat absorbing energy storage medium (303) in the tube, and the end heat absorbing energy storage medium decrease in this manner.

10. The portable new type of condensing aerosol fire extinguishing device according to claim 8, characterized in that: The handheld housing (1) is provided with a detachable sealing plug (9) for injecting the terminal heat absorption energy storage medium into the terminal cooling chamber (1022).

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