Condensed aerosol fire extinguishing device

By installing a sealing component in the thermal aerosol fire extinguishing device, the problem of aerosol leakage caused by the connection of the discharge pipe is solved, realizing effective gas release and efficient fire extinguishing during fire extinguishing.

CN224141384UActive Publication Date: 2026-04-21ZHEJIANG GUANAN INTELLIGENT FIRE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GUANAN INTELLIGENT FIRE TECH CO LTD
Filing Date
2025-03-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing thermal aerosol fire extinguishing devices may cause aerosol leakage if the fire extinguishing tank is connected to the external environment through the aerosol discharge pipe before fire extinguishing, thus reducing the fire extinguishing effect.

Method used

A thermal aerosol fire extinguishing device including a sealing component was designed. By setting up a guide tube, spring and sealing plug, the discharge hole is sealed to prevent leakage in the non-fire extinguishing state; when extinguishing a fire, the air pressure pushes the sealing plug to open the discharge hole and release the fire extinguishing gas.

Benefits of technology

It effectively prevents the leakage of aerosols in non-fire extinguishing conditions, improves the sealing of the fire extinguishing device and the release efficiency of the fire extinguishing gas, and ensures the fire extinguishing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a condensed aerosol fire extinguishing device, which relates to the field of fire extinguishing devices and comprises a box body, a fire extinguishing barrel body is mounted in the box body through bolts, an inner shell is mounted in the fire extinguishing barrel body, a sealing assembly is further arranged on the fire extinguishing barrel body, and the sealing assembly comprises a glue guide pipe mounted at the top of the fire extinguishing barrel body. By arranging the sealing assembly, the sealing plug can block the glue discharging hole under the condition that fire extinguishing is not needed, so that the glue guiding pipe is prevented from being communicated with the external environment, environment-friendly aerosol in the inner shell is prevented from leaking, and the sealing effect of the inner shell is improved; when the environment-friendly aerosol generating agent is activated, the air pressure in the inner shell is gradually increased, and when the environment-friendly aerosol generating agent is activated and rapidly generates fire extinguishing gas, the sealing plug is pushed by the air pressure and extrudes the spring, at the moment, the sealing plug does not shield the glue discharging hole any more, and the fire extinguishing gas can be discharged through the glue discharging hole.
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Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing devices, specifically a thermal aerosol fire extinguishing device. Background Technology

[0002] Wind turbine generator sets consist of a wind turbine and a generator. The wind turbine includes blades, a hub, and reinforcement components. It has functions such as generating electricity by rotating the blades under wind power and rotating the generator head. If a fire breaks out in a wind turbine generator set and cannot be extinguished in time, it will cause huge economic losses and damage. Therefore, wind turbine generator sets need to be equipped with thermal aerosol fire extinguishing devices.

[0003] According to Chinese Patent No. CN220938858U, an environmentally friendly thermal aerosol fire extinguishing device is disclosed. This device can extinguish fires at different heights and in different directions, thus increasing the fire extinguishing range.

[0004] Regarding the aforementioned patent content, the fire extinguishing tank is designed with an interior for storing aerosol generators and includes a drain pipe and other piping structures to facilitate the release of extinguishing gases for fire suppression. However, before fire suppression begins, the drain pipe and other piping structures keep the fire extinguishing tank in contact with the external environment, which may lead to aerosol leakage and reduce the effectiveness of subsequent aerosol fire suppression. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a thermal aerosol fire extinguishing device to solve the technical problem that the fire extinguishing tank may leak aerosol when it is connected to the external environment through the aerosol discharge pipe before fire extinguishing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thermal aerosol fire extinguishing device, comprising a housing, an extinguishing barrel body installed inside the housing by bolts, an inner shell installed inside the extinguishing barrel body, and a sealing assembly provided on the extinguishing barrel body. The sealing assembly includes an aerosol guide tube installed on the top of the extinguishing barrel body, with the bottom end of the aerosol guide tube extending into the interior of the inner shell. A spring is installed on one side of the inner side of the aerosol guide tube, and one end of the spring is connected to a sealing plug. A retaining ring is installed inside the aerosol guide tube, and a first sealing ring is installed on one side of the retaining ring. An aerosol discharge hole and an aerosol discharge tube are respectively provided on the top of the aerosol guide tube.

[0007] By adopting the above technical solution, when the electric heating tube heats the environmentally friendly aerosol inside the inner shell at a high temperature, the air pressure inside the inner shell will gradually increase. When the environmentally friendly aerosol generator is activated and quickly produces fire extinguishing gas, the sealing plug will be pushed by the air pressure, so that the sealing plug no longer blocks the glue discharge hole.

[0008] Furthermore, a vent pipe is connected to the upper interior of the housing via a sealed bearing, and the top end of the vent pipe extends to the outside of the housing and is connected to a rotating drum.

[0009] By adopting the above technical solution, the extinguishing gas can enter the interior of the rotating drum through the vent pipe.

[0010] Furthermore, a diversion pipe is installed on one side of the rotating drum, and multiple nozzles are installed on one side of the diversion pipe, while a connecting pipe extending into the interior of the rotating drum is installed on the other side of the diversion pipe.

[0011] By adopting the above technical solution, the extinguishing gas can enter the connecting pipe through the rotating drum, then enter the diversion pipe, and be sprayed out through the nozzle for fire extinguishing.

[0012] Furthermore, a motor is installed inside the upper part of the housing, and the output end of the motor is connected to a drive gear.

[0013] By adopting the above technical solution, when the ventilator needs to be rotated, the motor can be started, and the motor can drive the drive gear to rotate.

[0014] Furthermore, a driven gear is installed on the outer wall of the vent pipe, and the driving gear meshes with the driven gear. The diameter of the driving gear is smaller than the diameter of the driven gear.

[0015] By adopting the above technical solution, when the driving gear rotates, it will drive the driven gear to rotate, which in turn will drive the vent pipe to rotate.

[0016] Furthermore, an electric heating element is installed between the inner shell and the fire extinguishing barrel body.

[0017] By adopting the above technical solution, when fire extinguishing is required, the electric heating tube can be activated. The electric heating tube can heat the environmentally friendly aerosol inside the inner shell at a high temperature. After the environmentally friendly aerosol generator is activated, it can quickly produce fire extinguishing gas.

[0018] Furthermore, the top of the box body is provided with a movable groove, and a movable block is provided inside the movable groove, with the top of the movable block fixedly connected to the bottom of the rotating drum.

[0019] By adopting the above technical solution, when the drum rotates, it will drive the movable block to slide inside the movable groove, thereby improving the stability of the drum during rotation.

[0020] Furthermore, the diameter of the discharge hole is smaller than the inner diameter of the discharge tube, and the discharge tube is connected to the guide tube through the discharge hole.

[0021] By adopting the above technical solution, the extinguishing gas can enter the interior of the glue discharge pipe through the glue discharge hole, and then enter the interior of the vent pipe.

[0022] Furthermore, the top end of the discharge tube is located inside the vent tube, a sealed bearing is provided between the discharge tube and the vent tube, and a second sealing ring is installed at the bottom end of the vent tube, with the inner wall of the second sealing ring fitting against the outer wall of the discharge tube.

[0023] By adopting the above technical solution, the second sealing ring can improve the sealing between the discharge pipe and the vent pipe, preventing the leakage of fire extinguishing gas.

[0024] Furthermore, one side of the retaining ring is fitted with the sealing plug, the thickness of the sealing plug is greater than the diameter of the discharging hole, and the sealing plug is slidably connected to the discharging tube.

[0025] By adopting the above technical solution, the sealing plug can slide inside the glue guide tube, and when the sealing plug does not move, it will block the glue discharge hole, preventing the glue guide tube from communicating with the external environment.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, by setting a sealing component, can block the glue discharge hole when fire extinguishing is not required, thereby preventing the glue guide tube from communicating with the external environment, avoiding leakage of the environmentally friendly aerosol inside the inner shell, and improving the sealing effect of the inner shell. When the electric heating tube heats the environmentally friendly aerosol inside the inner shell at a high temperature, the air pressure inside the inner shell will gradually increase. When the environmentally friendly aerosol generator is activated and quickly generates fire extinguishing gas, the sealing plug will be pushed by the air pressure and squeeze the spring. At this time, the sealing plug will no longer block the glue discharge hole, and the fire extinguishing gas can be discharged through the glue discharge hole.

[0028] 2. This utility model is equipped with a retaining ring to prevent excessive movement of the sealing plug, so that the sealing plug can just seal the glue discharge hole. The first sealing ring is also provided to improve the sealing performance between the retaining ring and the sealing plug. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the movable groove structure of this utility model;

[0032] Figure 4 This is a bottom view of the rotating cylinder structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the sealing and plugging structure of this utility model;

[0034] Figure 6 This is a schematic diagram of the retaining ring structure of this utility model;

[0035] Figure 7 For the present utility model Figure 2 A magnified structural diagram of point A in the middle.

[0036] In the diagram: 1. Box body; 2. Fire extinguishing tank body; 3. Inner shell; 4. Electric heating element; 5. Motor; 6. Vent pipe; 7. Drive gear; 8. Driven gear; 9. Sealing assembly; 901. Adhesive guide tube; 902. Spring; 903. Sealing plug; 904. Adhesive discharge hole; 905. Retaining ring; 906. First sealing ring; 10. Second sealing ring; 11. Rotating drum; 12. Movable block; 13. Movable groove; 14. Diverter pipe; 15. Connecting pipe; 16. Nozzle; 17. Adhesive discharge pipe. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The embodiments of this utility model will be described below based on its overall structure.

[0039] Example 1:

[0040] A thermal aerosol fire extinguishing device, such as Figures 1-7 As shown, the device includes a housing 1, inside which a fire extinguishing tank 2 is bolted. Inside the fire extinguishing tank 2 is an inner shell 3, and a sealing assembly 9 is also provided. A vent pipe 6 is connected to the upper interior of the housing 1 via a sealed bearing, and the top end of the vent pipe 6 extends to the outside of the housing 1 and is connected to a rotating drum 11, allowing extinguishing gas to enter the rotating drum 11 through the vent pipe 6. A diversion pipe 14 is installed on one side of the rotating drum 11, and multiple nozzles 16 are installed on one side of the diversion pipe 14. Furthermore, a connecting pipe 15 extending into the rotating drum 11 is installed on the other side of the diversion pipe 14, which facilitates the entry of extinguishing gas through the rotating drum 11 into the connecting pipe 15, then into the diversion pipe 14, and finally sprayed out through the nozzle 16 for fire extinguishing. An electric heating tube 4 is installed between the inner shell 3 and the fire extinguishing tank 2. When fire extinguishing is required, the electric heating tube 4 can be activated to heat the environmentally friendly aerosol inside the inner shell 3 at a high temperature. After the environmentally friendly aerosol generator is activated, it can quickly generate extinguishing gas.

[0041] Specifically, the sealing assembly 9 includes a guide tube 901 installed on the top of the fire extinguishing tank body 2, with the bottom end of the guide tube 901 extending into the interior of the inner shell 3. A spring 902 is installed on one side of the inside of the guide tube 901, and one end of the spring 902 is connected to a sealing plug 903. A retaining ring 905 is installed inside the guide tube 901, and a first sealing ring 906 is installed on one side of the retaining ring 905. The top of the guide tube 901 is provided with a discharge hole 904 and a discharge pipe 17. When the electric heating tube 4 heats the environmentally friendly aerosol inside the inner shell 3 at a high temperature, the air pressure inside the inner shell 3 will gradually increase. When the environmentally friendly aerosol generator is activated and quickly generates extinguishing gas, the sealing plug 903 will close. 3 is pushed by air pressure, so that the sealing plug 903 no longer blocks the glue discharge hole 904. The diameter of the glue discharge hole 904 is smaller than the inner diameter of the glue discharge tube 17. The glue discharge tube 17 is connected to the glue guide tube 901 through the glue discharge hole 904 so that the extinguishing gas can enter the glue discharge tube 17 through the glue discharge hole 904 and then enter the vent tube 6. One side of the retaining ring 905 is in contact with the sealing plug 903. The thickness of the sealing plug 903 is greater than the diameter of the glue discharge hole 904. The sealing plug 903 is slidably connected to the glue guide tube 901 so that the sealing plug 903 can slide inside the glue guide tube 901. When the sealing plug 903 does not move, it will block the glue discharge hole 904 to prevent the glue guide tube 901 from communicating with the external environment.

[0042] See Figures 1-4 Inside the housing 1, a motor 5 is installed on the upper part. The output end of the motor 5 is connected to a drive gear 7. When the ventilation pipe 6 needs to be rotated, the motor 5 can be started. The operation of the motor 5 can drive the drive gear 7 to rotate. A driven gear 8 is installed on the outer wall of the ventilation pipe 6. The drive gear 7 and the driven gear 8 mesh. The diameter of the drive gear 7 is smaller than the diameter of the driven gear 8. When the drive gear 7 rotates, it will drive the driven gear 8 to rotate, and thus drive the ventilation pipe 6 to rotate.

[0043] Example 2:

[0044] Based on the above embodiment 1, the following structure will be set to improve the stability of the rotating drum 11 during rotation.

[0045] Specifically, the top of the housing 1 is provided with a movable groove 13, and a movable block 12 is provided inside the movable groove 13. The top of the movable block 12 is fixedly connected to the bottom of the rotating cylinder 11. The movable groove 13 is ring-shaped, and the movable block 12 is slidably connected to the movable groove 13. When the rotating cylinder 11 rotates, it will drive the movable block 12 to slide inside the movable groove 13, thereby improving the stability of the rotating cylinder 11 when it rotates.

[0046] Example 3:

[0047] Based on the above embodiment 1, in order to improve the sealing between the vent pipe 6 and the glue discharge pipe 17, the following structure will be set.

[0048] See Figure 2 , Figure 4 and Figure 7 The top end of the discharge pipe 17 is located inside the vent pipe 6. A sealed bearing is provided between the discharge pipe 17 and the vent pipe 6. A second sealing ring 10 is installed at the bottom end of the vent pipe 6. The inner wall of the second sealing ring 10 fits against the outer wall of the discharge pipe 17. The setting of the second sealing ring 10 can improve the sealing between the discharge pipe 17 and the vent pipe 6 and prevent the fire extinguishing gas from leaking.

[0049] The working principle of this utility model is as follows: First, when fire extinguishing is not required, the sealing plug 903 will block the discharge hole 904, thereby preventing the guide tube 901 from communicating with the external environment, avoiding leakage of the environmentally friendly aerosol inside the inner shell 3, and improving the sealing effect of the inner shell 3; when fire extinguishing is required, the electric heating tube 4 is activated, and the electric heating tube 4 heats the environmentally friendly aerosol inside the fire extinguishing tank 2 at high temperature. The environmentally friendly aerosol generator inside the fire extinguishing tank 2 is activated and fire extinguishing gas is generated rapidly. At the same time, when the electric heating tube 4 heats the environmentally friendly aerosol inside the inner shell 3 at high temperature, the air pressure inside the inner shell 3 will gradually increase. At this time, the sealing plug 903 will be pushed by the air pressure and squeeze the spring 902. At this time, the sealing plug 903 no longer blocks the discharge hole 904, and the fire extinguishing gas can be discharged into the ventilation pipe 6 through the discharge hole 904 and enter the rotating drum 11. Then, it enters the diversion pipe 14 through the connecting pipe 15 and then is sprayed out through the nozzle 16 for fire extinguishing.

[0050] When fires need to be extinguished in different directions, motor 5 can be started. When motor 5 is working, it drives the drive gear 7 to rotate. When the drive gear 7 rotates, it drives the driven gear 8 to rotate, which in turn drives the vent pipe 6 to rotate, then drives the rotating drum 11 to rotate, and drives the nozzle 16 to rotate, so that fires can be extinguished in different directions.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A thermal gas aerosol fire extinguishing device comprising a housing (1), characterised in that: The fire extinguishing tank body (2) is bolted inside the box body (1), and an inner shell (3) is installed inside the fire extinguishing tank body (2). A sealing assembly (9) is also provided on the fire extinguishing tank body (2). The sealing assembly (9) includes a guide tube (901) installed on the top of the fire extinguishing tank body (2), and the bottom end of the guide tube (901) extends into the interior of the inner shell (3). A spring (902) is installed on one side of the inside of the guide tube (901), and a sealing plug (903) is connected to one end of the spring (902). A retaining ring (905) is installed inside the guide tube (901), and a first sealing ring (906) is installed on one side of the retaining ring (905). A drain hole (904) and a drain tube (17) are respectively provided on the top of the guide tube (901).

2. A thermal gas aerosol fire extinguishing device according to claim 1, wherein: The upper part of the box (1) is connected to a vent pipe (6) via a sealed bearing, and the top end of the vent pipe (6) extends to the outside of the box (1) and is connected to a rotating drum (11).

3. A thermal gas aerosol fire extinguishing device according to claim 2, wherein: A diversion pipe (14) is installed on one side of the rotating drum (11), and a plurality of nozzles (16) are installed on one side of the diversion pipe (14), and a connecting pipe (15) extending into the interior of the rotating drum (11) is installed on the other side of the diversion pipe (14).

4. A thermal gas aerosol fire extinguishing device according to claim 2, wherein: A motor (5) is also installed on the upper part of the inside of the housing (1), and the output end of the motor (5) is connected to a drive gear (7).

5. A thermal gas aerosol fire extinguishing device according to claim 4, wherein: The outer wall of the vent pipe (6) is equipped with a driven gear (8), and the driving gear (7) meshes with the driven gear (8). The diameter of the driving gear (7) is smaller than the diameter of the driven gear (8).

6. A thermal gas aerosol fire extinguishing device according to claim 1, wherein: An electric heating tube (4) is installed between the inner shell (3) and the fire extinguishing barrel body (2).

7. A thermal gas aerosol fire extinguishing device according to claim 2, wherein: The top of the box (1) is provided with a movable groove (13), and a movable block (12) is provided inside the movable groove (13), and the top of the movable block (12) is fixedly connected to the bottom of the rotating cylinder (11).

8. A thermal gas aerosol fire extinguishing device according to claim 1, wherein: The diameter of the discharge hole (904) is smaller than the inner diameter of the discharge tube (17), and the discharge tube (17) is connected to the guide tube (901) through the discharge hole (904).

9. A thermal gas aerosol fire extinguishing device according to claim 1, wherein: The top end of the discharge tube (17) is located inside the vent tube (6). A sealed bearing is provided between the discharge tube (17) and the vent tube (6). A second sealing ring (10) is installed at the bottom end of the vent tube (6). The inner wall of the second sealing ring (10) is in contact with the outer wall of the discharge tube (17).

10. A thermal aerosol fire extinguishing device according to claim 1, characterized in that: One side of the retaining ring (905) is in contact with the sealing plug (903), the thickness of the sealing plug (903) is greater than the diameter of the glue discharge hole (904), and the sealing plug (903) is slidably connected to the glue guide tube (901).

Citation Information

Patent Citations

  • An environmentally friendly hot aerosol fire extinguishing device

    CN220938858U