Explosion suppression type condensed aerosol fire extinguisher

Abstract

The utility model relates to the technical field of condensed aerosol fire extinguishing, and discloses an explosion suppression type condensed aerosol fire extinguisher which comprises a condensed aerosol fire extinguisher main body, an explosion suppression shell is sleeved outside the condensed aerosol fire extinguisher main body, and a protective cover is assembled at the front end of the explosion suppression shell; a cooling sleeve is mounted at an output head of the hot aerosol fire extinguisher main body, and a protective sleeve is sleeved outside the cooling sleeve; a cooling pipe is wound outside the cooling sleeve, limiting rings are sleeved outside the cooling sleeve and located at two ends of the cooling pipe, and the limiting rings are sleeved outside the hot aerosol fire extinguisher main body; a liquid inlet head is installed at one end of the cooling pipe, a liquid outlet head is installed at the other end of the cooling pipe, through holes are formed in the two side walls of the protective sleeve, and the liquid outlet head and the liquid inlet head are inserted into the through holes respectively; according to the explosion suppression type hot aerosol fire extinguisher, the nozzle end of the fire extinguisher shell can be cooled, high temperature is prevented from flowing back into the fire extinguisher to cause explosion, and therefore the safety of the aerosol fire extinguisher can be improved, and the service life of the aerosol fire extinguisher can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of thermal aerosol fire extinguishing technology, specifically to an explosion-suppressing thermal aerosol fire extinguisher. Background Technology

[0002] Aerosol fire extinguishers utilize the absorption of large amounts of heat by metal salt particles at high temperatures, resulting in physical endothermic processes such as thermal melting and vaporization. This lowers the flame temperature, reducing the heat radiated to the combustion surface of the combustible material for vaporizing molecules and breaking down already vaporized molecules into free radicals, thus inhibiting the combustion reaction rate. However, aerosols can experience overheating and flame leakage. When the nozzle of an aerosol fire extinguisher is close to the flame, it can easily overheat. For example, patent application number 202020048739.0 discloses a thermal aerosol fire extinguishing device, which includes an outer casing and a metal canister. By using a heat-sensitive wire and a powder cake, it replaces the traditional manual activation method, allowing the device to automatically and quickly activate according to environmental changes, effectively improving its extinguishing efficiency. However, due to the lack of a cooling structure at the nozzle end, heat can easily enter the extinguisher, causing it to overheat and potentially explode, reducing the safety and lifespan of the aerosol fire extinguisher. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an explosion-suppressing thermal aerosol fire extinguisher.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An explosion-suppressing thermal aerosol fire extinguisher includes a thermal aerosol fire extinguisher body, an explosion-suppressing shell fitted over the body, and a protective cover fitted to the front end of the shell. A cooling sleeve is installed at the output head of the body, and a protective sleeve is fitted over the cooling sleeve. A cooling tube is wound around the cooling sleeve, and limit rings are fitted at both ends of the cooling tube, which are then fitted over the body. One end of the cooling tube has an inlet head, and the other end has an outlet head. Through holes are formed on both sides of the protective sleeve, and the outlet head and inlet head are respectively inserted into these holes. Countersunk screw holes are formed on the outer wall of the protective sleeve at the limit rings, and threaded grooves are formed on the side walls of the limit rings at the countersunk screw holes. Bolt bodies are screwed into the countersunk screw holes and threaded grooves.

[0006] Preferably, the protective sleeve is fitted with a mating sleeve on its outer side, the outer wall of the mating sleeve has external threads, the inner wall of the protective cover has internal threads, and the protective cover is screwed onto the outside of the mating sleeve.

[0007] Preferably, the bottom end of the bolt body is provided with a circular groove, and a bolt rod is installed at the bottom end of the circular groove. The bolt rod is screwed into the countersunk thread hole and the thread groove.

[0008] Preferably, a retaining ring is installed on the upper outer end of the bolt rod, and an annular pressure plate, a spring, and an annular rubber sheet are fitted onto the circumferential surface of the bolt rod.

[0009] Preferably, an extrusion block is installed at the upper edge of the annular rubber sheet, and the outer wall of the bolt body is provided with an arc surface, and the surface of the arc surface is provided with anti-slip texture.

[0010] Preferably, a plug is inserted into the through hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When not in use, the thermal aerosol fire extinguisher of this invention is placed entirely within a protective outer sleeve. The protective end cap and the protective outer sleeve are connected together by threads, thus enabling the aerosol fire extinguisher to be placed in a sealed manner. By installing a cooling jacket at the output end of the aerosol fire extinguisher, the nozzle end of the fire extinguisher shell can be cooled, preventing high temperature backflow into the fire extinguisher and causing an explosion. The reasonable structural design can improve the safety and service life of the aerosol fire extinguisher. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this explosion-suppressing thermal aerosol fire extinguisher;

[0014] Figure 2 This is a schematic diagram of the protective sleeve in this explosion-suppressing thermal aerosol fire extinguisher;

[0015] Figure 3 This is a schematic diagram of the cooling jacket structure in this explosion-suppressing thermal aerosol fire extinguisher;

[0016] Figure 4 This is a schematic diagram of the bolt body in this explosion-suppressing thermal aerosol fire extinguisher.

[0017] In the attached diagram: 1. Main body of the thermal aerosol fire extinguisher; 2. Explosion-suppressing shell; 3. Protective cover; 4. Internal thread; 5. Mating sleeve; 6. External thread; 7. Protective sleeve; 8. Cooling sleeve; 9. Countersunk screw hole; 10. Bolt body; 101. Circular groove; 102. Annular rubber sheet; 103. Bolt rod; 104. Extrusion block; 105. Annular pressure plate; 106. Fixing ring; 107. Spring; 108. Arc surface; 11. Through hole; 12. Hole plug; 13. Cooling pipe; 14. Threaded groove; 15. Liquid outlet head; 16. Limiting ring; 17. Liquid inlet head. Detailed Implementation

[0018] Example 1: A preferred embodiment of this utility model provides an explosion-suppressing thermal aerosol fire extinguisher, including a thermal aerosol fire extinguisher body 1. An explosion-suppressing shell 2 is fitted over the thermal aerosol fire extinguisher body 1, and a protective cover 3 is fitted to the front end of the explosion-suppressing shell 2. A cooling sleeve 8 is installed at the output head of the thermal aerosol fire extinguisher body 1, and a protective sleeve 7 is fitted over the cooling sleeve 8. A cooling pipe 13 is wound around the outside of the cooling sleeve 8, and limit rings 16 are fitted at both ends of the cooling pipe 13 on the outside of the cooling sleeve 8 to limit... The positioning ring 16 is fitted onto the outside of the main body 1 of the thermal aerosol fire extinguisher; one end of the cooling pipe 13 is equipped with an inlet head 17, and the other end of the cooling pipe 13 is equipped with an outlet head 15. Both sides of the protective sleeve 7 are provided with through holes 11, and the outlet head 15 and the inlet head 17 are respectively inserted into the through holes 11; the outer wall of the protective sleeve 7 is provided with countersunk screw holes 9 at the positioning ring 16, and the side wall of the positioning ring 16 is provided with screw grooves 14 at the countersunk screw holes 9. The bolt bodies 10 are screwed into the countersunk screw holes 9 and the screw grooves 14.

[0019] The explosion-suppressing outer shell 2 is fitted onto the outside of the thermal aerosol fire extinguisher body 1. The output end of the thermal aerosol fire extinguisher body 1 is fitted with a cooling jacket 8. The outside of the cooling jacket 8 is protected by a protective sleeve 7. The cooling jacket 8 is made by a cooling pipe 13 and is wrapped around the outside of the output end of the thermal aerosol fire extinguisher body 1 to cool it. Coolant is added into it through the liquid inlet head 17 and the coolant can be discharged through the liquid outlet head 15. The cooling jacket 8 is fixed to the outside of the output end of the thermal aerosol fire extinguisher body 1 by a limiting ring 16.

[0020] Example 2: A preferred embodiment of this utility model provides an explosion-suppressing thermal aerosol fire extinguisher, which differs from the above embodiment only in that: a mating sleeve 5 is fitted onto the outside of the protective sleeve 7, the outer wall of the mating sleeve 5 has an external thread 6, and the inner wall of the protective cover 3 has an internal thread 4. The protective cover 3 is screwed onto the outside of the mating sleeve 5. The mating sleeve 5 is fitted onto the outside of the protective sleeve 7, and the protective cover 3 can be installed on the outside of the mating sleeve 5 through the threaded engagement.

[0021] Example 3: A preferred embodiment of this utility model provides an explosion-suppressing thermal aerosol fire extinguisher, which differs from the above embodiment only in that: a circular groove 101 is provided at the bottom end of the bolt body 10, and a bolt rod 103 is installed at the bottom end of the circular groove 101. The bolt rod 103 is screwed into the countersunk screw hole 9 and the screw groove 14.

[0022] The limiting ring and protective sleeve 7 are connected and fixed by bolt rod 103 through countersunk screw hole 9 and screw groove 14. A fixing ring 106 is installed on the upper outer end of bolt rod 103. An annular pressure plate 105, spring 107 and an annular rubber sheet 102 are fitted on the circumferential surface of bolt rod 103. The annular pressure plate 105 is located on the upper side of fixing ring 106, the spring 107 is located on the upper side of annular pressure plate 105, and the annular rubber sheet 102 is located on the lower side of fixing ring 106.

[0023] Example 4: A preferred embodiment of this utility model provides an explosion-suppressing thermal aerosol fire extinguisher, which differs from the above embodiment only in that: a compression block 104 is installed at the upper edge of the annular rubber sheet 102, so that the annular pressure plate 105 is pressed downward by the action of the spring 107, and the compression block 104 is pressed downward by the action of the annular pressure plate 105, so that the compression block 104 further compresses the edge of the annular rubber sheet 102, thereby improving the sealing effect.

[0024] The outer wall of the bolt body 10 is provided with an arc surface 108, and the surface of the arc surface 108 is provided with anti-slip texture. The arc surface 108 facilitates the driving of the bolt body 10.

[0025] Example 5: A preferred embodiment of this utility model provides an explosion-suppressing thermal aerosol fire extinguisher, which differs from the above embodiment only in that: a plug 12 is inserted into the through hole 11, and the liquid outlet 15 and the liquid inlet 17 can be sealed through the plug 12.

[0026] In use, first, put the cooling jacket 8 on the output end of the thermal aerosol fire extinguisher body 1. Then, put the protective sleeve 7 on the outside of the cooling jacket 8. Place the liquid outlet 15 and liquid inlet 17 of the cooling pipe 13 into the through hole 11. Then, put the protective sleeve 7 on the outside of the cooling jacket 8. Install the thermal aerosol fire extinguisher body 1 into the explosion suppression shell 2. Then, add coolant into the cooling pipe 13. Put the mating sleeve 5 on the protective sleeve 7. Finally, screw the protective cover 3 into the outside of the mating sleeve 5.

[0027] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A deflagration-type thermal aerosol fire extinguisher, comprising a thermal aerosol fire extinguisher body (1), characterized in that: The main body (1) of the thermal aerosol fire extinguisher is fitted with an explosion-suppressing shell (2), and the front end of the explosion-suppressing shell (2) is fitted with a protective cover (3); a cooling sleeve (8) is installed at the output head of the main body (1) of the thermal aerosol fire extinguisher, and a protective sleeve (7) is fitted on the outside of the cooling sleeve (8); a cooling pipe (13) is wound around the outside of the cooling sleeve (8), and limit rings (16) are fitted at both ends of the cooling pipe (13) on the outside of the cooling sleeve (8), and the limit rings (16) are fitted on the outside of the main body (1) of the thermal aerosol fire extinguisher; the cooling pipe (13) has an inlet head (17) installed at one end and an outlet head (15) installed at the other end. Both sides of the protective sleeve (7) have through holes (11), and the outlet head (15) and inlet head (17) are respectively inserted into the through holes (11). The outer wall of the protective sleeve (7) has countersunk screw holes (9) at the limiting ring (16), and the side wall of the limiting ring (16) has a screw groove (14) at the countersunk screw hole (9). The bolt body (10) is screwed into the countersunk screw hole (9) and the screw groove (14).

2. The explosion-suppressing thermal aerosol fire extinguisher according to claim 1, characterized in that, The protective sleeve (7) is fitted with a mating sleeve (5) on its outer side. The outer wall of the mating sleeve (5) is provided with an external thread (6). The inner wall of the protective cover (3) is provided with an internal thread (4). The protective cover (3) is screwed onto the outside of the mating sleeve (5).

3. The explosion-suppressing thermal aerosol fire extinguisher according to claim 1, characterized in that, The bottom end of the bolt body (10) is provided with a circular groove (101), and a bolt rod (103) is installed at the bottom end of the circular groove (101). The bolt rod (103) is screwed into the countersunk screw hole (9) and the screw groove (14).

4. The explosion-suppressing thermal aerosol fire extinguisher according to claim 3, characterized in that, A retaining ring (106) is installed on the upper outer end of the bolt rod (103), and an annular pressure plate (105), a spring (107) and an annular rubber sheet (102) are fitted on the circumferential surface of the bolt rod (103).

5. The explosion-suppressing thermal aerosol fire extinguisher according to claim 4, characterized in that, An extrusion block (104) is installed at the upper edge of the annular rubber sheet (102), and the outer wall of the bolt body (10) is provided with an arc surface (108), and the surface of the arc surface (108) is provided with anti-slip texture.

6. The explosion-suppressing thermal aerosol fire extinguisher according to claim 1, characterized in that, A plug (12) is inserted into the through hole (11).

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