A dose scalable thermal aerosol fire suppression device
By incorporating retractable components and a fusible layer, the problem of non-adjustable dosage in aerosol fire extinguishing devices is solved, enabling flexible dosage adjustment and improved fire extinguishing efficiency. It is also widely applicable, compact, and easy to transport.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUCHAN CHANGPENG CHEM IND CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-12
AI Technical Summary
Existing aerosol fire extinguishing devices have a fixed aerosol dosage in their extinguishing units, which cannot be adjusted, resulting in poor applicability. Furthermore, the devices are bulky and inconvenient to transport.
It adopts a retractable housing component and a fusible layer design, with an inner and outer tube structure. The aerosol dosage can be adjusted by retraction. Multiple injection holes and coolant layers are set to achieve scalable dosage and improved safety.
It enables flexible adjustment of aerosol dosage, improves fire extinguishing efficiency and safety, has a wide range of applications, is small in size, and is easy to transport.
Smart Images
Figure CN224345350U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aerosol fire extinguishing, in particular to a heat aerosol fire suppression device with scalable dosage. Background Art
[0002] The principle of aerosol fire extinguishing mainly extinguishes fires through the dual effects of chemical inhibition and physical asphyxiation. The core lies in that the aerosol fire extinguishing agent rapidly decomposes at high temperatures, releasing a large amount of active particles and inert gases, quickly inhibiting the combustion chain reaction, and at the same time reducing the oxygen concentration, thereby achieving efficient fire extinguishing.
[0003] Chinese Patent CN211798430U discloses a modular aerosol fire extinguishing device. The combined fire extinguishing units can achieve linkage under the condition of no external power supply. It includes: more than one fire extinguishing unit, and each fire extinguishing unit includes: a housing, an aerosol medicine column, and a central tube; the housing has a central hole and an annular space coaxial with the central hole, where the annular space is used to install the aerosol medicine column, and the central hole is used to install the central tube; two or more medicine column activation holes are circumferentially distributed on the outer circumferential surface of the central tube, and the annular space inside the housing is connected to the medicine column activation holes; a starter is arranged inside the central tube for activating the aerosol medicine column. When the fire extinguishing device includes two or more fire extinguishing units, the two or more fire extinguishing units are coaxially docked in sequence. When the first fire extinguishing unit is activated, the generated aerosol fire extinguishing smoke is ejected from the central tube of the first fire extinguishing unit and transmitted to the central tube of the second fire extinguishing unit connected thereto, activating the second fire extinguishing unit, thereby realizing the linkage of the coaxially connected fire extinguishing units.
[0004] However, the aerosol dosage of each fire extinguishing unit in this technical solution is fixed, and the dosage of a single fire extinguishing unit cannot be directly adjusted, which has little effect on large fires and is not applicable, with great limitations. Moreover, the volume of multiple assembled fire extinguishing units is large, requiring a large space and being inconvenient for transportation. Summary of the Utility Model
[0005] The purpose of the present utility model is to provide a heat aerosol fire suppression device with scalable dosage for the deficiencies of the prior art. By installing the aerosol inside the telescopic accommodation component, it can flexibly adjust the length of the accommodation component according to the size and requirements of the actual fire scene, thereby changing the dosage of the aerosol medicine column, achieving the scalability of the dosage, enabling it to adapt to fire scenes of different space sizes, and improving the versatility and applicability of the device.
[0006] To achieve the above purpose, the present utility model provides the following technical solutions:
[0007] A dosage-expandable thermal aerosol fire suppression device includes: a receiving component, plugs disposed at both ends of the receiving component, and an aerosol propellant column disposed inside the receiving component, wherein the receiving component is a telescopic structure.
[0008] Preferably, the receiving component includes an outer tube and an inner tube slidably connected inside the outer tube, wherein the aerosol drug column is disposed inside the inner tube.
[0009] Preferably, the inner tube is provided with a fusible layer.
[0010] Preferably, the outer tube is provided with a plurality of first injection holes, and the inner tube is provided with a plurality of second injection holes.
[0011] Preferably, when the inner tube extends into the outer tube, the second injection hole and the first injection hole are selectively aligned.
[0012] Preferably, a coolant layer is provided between the inner tube and the aerosol drug column.
[0013] Preferably, an opening is provided on one side of the coolant layer.
[0014] Preferably, the opening is positioned directly opposite the second injection hole, and the size of the opening is adapted to the size of the second injection hole.
[0015] Preferably, one end of the outer tube is provided with the plug, and the other end is slidably connected to the inner tube.
[0016] Preferably, the outer tube and the inner tube are fixed together by fasteners.
[0017] Preferably, the plug and the aerosol propellant column are detachably connected.
[0018] The beneficial effects of this utility model are as follows:
[0019] (1) This utility model provides external support through the outer tube, and the inner tube slides in it, which can ensure the structural stability of the entire device and allow the inner tube to extend and retract, making the device more flexible when adjusting the dosage, easy to operate, and widely applicable. When not in use, the housing component can be retracted to a shorter length, which is convenient for transportation and storage and saves space.
[0020] (2) By providing a fusible layer in the inner tube, the fusible layer will melt at high temperature when a fire occurs, thereby triggering the release of the aerosol column, ensuring that the device can respond to the fire in a timely manner, preventing false triggering, and only starting when the temperature reaches a specific point, which improves the safety of the device and avoids waste.
[0021] (3) By setting multiple spray holes on both the inner and outer tubes, this utility model can achieve multi-point spraying of aerosols, improve the fire extinguishing effect, and ensure that the aerosols can evenly cover the fire area, thereby ensuring the fire extinguishing efficiency.
[0022] (4) By setting a coolant layer between the inner tube and the aerosol column, the coolant layer can absorb heat when the aerosol column is released, reduce the internal temperature of the device, prevent the device from overheating and being damaged, improve the safety of the device, reduce other safety hazards caused by high temperature, and the coolant in the coolant layer (such as aluminum hydroxide gel) can absorb the high temperature when the aerosol is generated, reduce the temperature of the jet gas flow, and avoid secondary ignition.
[0023] In summary, this utility model has the advantages of adjustable aerosol dosage, good fire extinguishing effect, good safety, high fire extinguishing efficiency, wide applicability, small size and easy transportation. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a longitudinal section sectional view of the present invention;
[0026] Figure 3 This is a cross-sectional view of the present invention;
[0027] Figure 4 This is a schematic diagram of the structure of this utility model when the inner tube is fully extended from the outer tube;
[0028] Figure 5 This is an exploded view of the components of this utility model. Detailed Implementation
[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0031] Example
[0032] like Figures 1-5 As shown, this embodiment provides a dosage-expandable thermal aerosol fire suppression device, including: a receiving component 1, plugs 2 disposed at both ends of the receiving component 1, and an aerosol propellant column 3 disposed inside the receiving component 1. The receiving component 1 is a telescopic structure. Through the telescopic structure, the length of the receiving component 1 can be flexibly adjusted according to the size and needs of the actual fire scene, thereby changing the dosage of the aerosol propellant column 3, realizing dosage scalability, so that it can adapt to fire scenes of different space sizes, improving the versatility and applicability of the device, and when not in use, the receiving component 1 can be retracted to a shorter length, which is convenient for transportation and storage and saves space.
[0033] The receiving component 1 includes an outer tube 11 and an inner tube 12 slidably connected inside the outer tube 11. The aerosol drug column 3 is disposed inside the inner tube 12. The outer tube 11 provides external support, and the inner tube 12 slides within it, which can ensure the structural stability of the entire device and allow the inner tube 12 to extend and retract, making the device more flexible and easy to operate when adjusting the dosage.
[0034] Meanwhile, the inner tube 12 is provided with a fusible layer 13. In the event of a fire, the fusible layer 13 will melt at high temperature, thereby triggering the release of the aerosol charge 3, ensuring that the device can respond to the fire in a timely manner and preventing false triggering. It will only start when the temperature reaches a specific point, which improves the safety of the device and avoids waste.
[0035] In this embodiment, the outer tube 11 is provided with a plurality of first spray holes 14, and the inner tube 12 is provided with a plurality of second spray holes 15. Through the multiple first spray holes 14 and second spray holes 15, multi-point spraying of aerosol can be achieved, improving the fire extinguishing effect and ensuring that the aerosol can uniformly cover the fire area.
[0036] In this embodiment, the fusible layer 13 and the second injection hole 15 are staggered and do not interfere with each other, which can avoid blockage and ensure that the aerosol can be released smoothly.
[0037] In this embodiment, when a fire occurs, the device is generally triggered by components such as a thermal wire, an electric starter, or a sensor, which then ignites the aerosol propellant column 3. The propellant column undergoes a solid-phase combustion reaction at high temperatures (usually 300℃~600℃), rapidly decomposing to generate solid particles (such as metal oxides such as K2O and SrO) and inert gases (such as N2, CO2, and H2O vapors), which are beneficial for suppressing fires, thereby achieving the purpose of extinguishing the fire.
[0038] In this embodiment, when the inner tube 12 extends into the outer tube 11, the second injection hole 15 and the first injection hole 14 are selectively aligned. By adjusting the extension and retraction position of the inner tube 12, the number of alignments between the first injection hole 14 and the second injection hole 15 can be selectively adjusted, thereby changing the amount of aerosol released and achieving precise dosage control. Furthermore, the alignment of the injection holes can be flexibly adjusted according to the size and severity of the fire, improving the adaptability of the device.
[0039] In this embodiment, a coolant layer 16 is provided between the inner tube 12 and the aerosol drug column 3. The coolant layer 16 can absorb heat when the aerosol drug column 3 is released, reduce the internal temperature of the device, prevent the device from overheating and being damaged, improve the safety of the device, and reduce other safety hazards caused by high temperature.
[0040] In this embodiment, the coolant (such as aluminum hydroxide gel) in the coolant layer 16 can absorb the high temperature during aerosol generation, reduce the temperature of the jet gas flow, and prevent secondary ignition.
[0041] In this embodiment, an opening 17 is provided on one side of the coolant layer 16. The opening 17 provides a release channel for the aerosol, ensuring that the aerosol can be smoothly sprayed out from the inner tube 12 and improving the aerosol release efficiency.
[0042] In this embodiment, the opening 17 is positioned directly opposite the second spray hole 15 to ensure that the aerosol can be accurately sprayed out through the second spray hole 15, thereby improving the fire extinguishing effect. Furthermore, the size of the opening 17 is adapted to the size of the second spray hole 15, which can reduce the loss of aerosol during the spraying process and thus improve the working efficiency of the device.
[0043] In this embodiment, a plug 2 is provided at one end of the outer tube 11. The plug 2 can seal one end of the outer tube 11 to ensure the airtightness of the device and prevent the aerosol drug column 3 from leaking when not in use. The other end of the outer tube 11 is slidably connected to the inner tube 12, making the extension and retraction of the inner tube 12 more convenient and improving the ease of use of the device.
[0044] Of course, the outer tube 11 and the inner tube 12 are fixed by fasteners 18. The threaded section of the fastener 18 is threaded into the outer tube 11. The bottom of the threaded section, i.e. the bottom of the fastener 18, is a cylinder, which is adapted to the groove 19 on the outer wall of the inner tube 12. The cylinder can be directly inserted into the groove 19, thereby ensuring the rapid positioning of the inner tube 12 and the outer tube 11, so that the first injection hole 14 and the second injection hole 15 can be accurately aligned. Moreover, the two working together can restrict the circumferential rotation of the inner tube 12, ensuring the stability and firmness of the inner tube 12.
[0045] In addition, the plug 2 and the aerosol drug column 3 are detachably connected, which facilitates the maintenance and replacement of the aerosol drug column 3, extends the service life of the device, and allows for the replacement of different doses or types of aerosol drug columns 3 as needed, improving the flexibility and adaptability of the device. Generally, a threaded connection is used, but a magnetic connection method can also be selected.
[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dosage-scalable thermal aerosol fire suppression device, characterized in that, include: The container includes a receiving component, plugs at both ends of the receiving component, and an aerosol drug column disposed inside the receiving component. The receiving component is a telescopic structure.
2. The dosage-expandable thermal aerosol fire suppression device according to claim 1, characterized in that, The receiving assembly includes an outer tube and an inner tube slidably connected inside the outer tube, wherein the aerosol drug column is disposed inside the inner tube.
3. The dosage-expandable thermal aerosol fire suppression device according to claim 2, characterized in that, The inner tube is provided with a fusible layer.
4. A dosage-expandable thermal aerosol fire suppression device according to claim 2, characterized in that, The outer tube is provided with a plurality of first injection holes, and the inner tube is provided with a plurality of second injection holes.
5. A dosage-expandable thermal aerosol fire suppression device according to claim 4, characterized in that, When the inner tube extends into the outer tube, the second injection hole and the first injection hole are selectively aligned.
6. A dosage-expandable thermal aerosol fire suppression device according to claim 5, characterized in that, A coolant layer is provided between the inner tube and the aerosol drug column.
7. A dosage-expandable thermal aerosol fire suppression device according to claim 6, characterized in that, An opening is provided on one side of the coolant layer.
8. A dosage-expandable thermal aerosol fire suppression device according to claim 7, characterized in that, The opening is positioned directly opposite the second injection hole, and the size of the opening is adapted to the size of the second injection hole.
9. A dosage-expandable thermal aerosol fire suppression device according to claim 2, characterized in that, The plug is provided at one end of the outer tube, and the other end is slidably connected to the inner tube.
10. A dosage-expandable thermal aerosol fire suppression device according to claim 2, characterized in that, The outer tube and the inner tube are fixed together by fasteners.