A fire extinguishing device

Abstract

The application provides a fire extinguishing device, comprising a starting device, an inner chamber, an outer chamber, a first agent and a cover plate; the starting device is connected with the bottom of the inner chamber; the inner chamber is filled with a reaction agent; the outer chamber is arranged on the outer wall side of the inner chamber, and the cover plate is arranged on the open end of the outer chamber and the inner chamber; and the first agent is arranged between the outer chamber and the inner chamber. The fire extinguishing device can spray different fire extinguishing substances in multiple stages to achieve the effect of completely extinguishing the fire source and preventing the fire from rekindling.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, and in particular to a fire extinguishing device. Background Art

[0002] Aerosol fire extinguishing devices have been widely used due to their excellent fire extinguishing efficiency and environmental friendliness. However, when it comes to energy storage and new energy application scenarios, traditional aerosol fire extinguishing devices are also difficult to achieve rapid fire extinguishing effects. Therefore, based on traditional aerosol fire extinguishing devices, Chinese researchers have developed pulse fire extinguishing devices.

[0003] The main feature of the pulse aerosol fire extinguishing device is its fast fire extinguishing speed. The fire extinguishing medium can be sprayed instantly, achieving rapid fire extinguishing. However, neither the pulse aerosol fire extinguishing device nor the traditional aerosol fire extinguishing device can effectively reduce the temperature in the protected space, and it is possible that the fire will reignite after the first wave of flames is extinguished.

[0004] In view of the above problems, it is necessary to improve the existing fire extinguishing device. The present invention provides a fire extinguishing device that can effectively reduce the temperature of the protected space. Summary of the Invention

[0005] Based on the above description, the present invention provides a fire extinguishing device to solve the technical problem that the temperature in the protected space cannot be effectively reduced, resulting in the re-ignition of the flame after the first wave of flame is extinguished.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: A fire extinguishing device comprises: a starting device, an inner chamber, an outer chamber and a cover plate;

[0007] The starting device is connected to the bottom of the inner chamber; the inner chamber is filled with a reaction agent;

[0008] The outer chamber is sleeved on the outer wall of the inner chamber, and the cover plate is provided on the open ends of the outer chamber and the inner chamber;

[0009] A first medicine is filled between the outer chamber and the inner chamber.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the inner chamber includes a first chamber and a second chamber, and the second chamber is located on a side of the first chamber away from the starting device;

[0012] The reaction reagents include a second reagent and a third reagent; the second reagent is filled in the first chamber, and the third reagent is filled in the second chamber.

[0013] Furthermore, the fire extinguishing device further comprises a piston;

[0014] The piston is arranged between the outer wall of the inner chamber and the inner wall of the outer chamber.

[0015] Furthermore, a first cavity is provided on a side of the piston away from the starting device, and a second cavity is provided on a side of the piston close to the starting device.

[0016] Furthermore, the outer chamber is provided with a discharge port;

[0017] The discharge port is provided at one end of the outer chamber close to the cover plate, and the discharge port is used to provide a channel for releasing the gas in the second cavity when the piston abuts against the cover plate.

[0018] Furthermore, the starting device includes: a starting mechanism and a heat conducting wire;

[0019] One end of the heat conducting wire is arranged at the connection between the starting mechanism and the inner chamber, and the other end of the heat conducting wire is in contact with the reaction reagent.

[0020] Furthermore, the starting mechanism includes: a connecting piece, a heat conducting sheet, a medicine chamber and a lead wire;

[0021] The connecting member is provided with a first through-channel, and the heat conducting sheet is placed in the first through-channel;

[0022] One end of the medicine bin is provided with an opening, the open end of the medicine bin is connected to the connecting piece, and the medicine bin is filled with a fourth medicine;

[0023] One end of the lead is arranged between the fourth medicine and the heat conducting sheet and in contact with the fourth medicine, and the other end is arranged on the outer wall side of the medicine chamber.

[0024] Furthermore, the starting mechanism further comprises: a heat-insulating chamber;

[0025] The heat-insulating chamber is wrapped around the outer wall side of the medicine chamber, and the lead is located in the heat-insulating chamber, and the upper end of the heat-insulating chamber is connected to the connecting piece.

[0026] Furthermore, the starting mechanism further comprises: a waterproof connector;

[0027] The waterproof joint is connected to the lower end of the thermal insulation compartment;

[0028] The waterproof joint is provided with a second through-channel, and the end of the lead wire away from the fourth medicine passes through the second through-channel.

[0029] Furthermore, the cover plate is provided with a nozzle and an injector;

[0030] There are multiple nozzles, and the multiple nozzles are arranged on the cover plate;

[0031] The ejector is arranged at the nozzles above the inner chamber and the outer chamber; or is arranged at the nozzle above the outer chamber.

[0032] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0033] The present invention provides a fire extinguishing device that utilizes an aerosol-based fire extinguishing method by disposing a second agent, an aerosol generator, within an inner chamber. A third agent, a pulse agent, is disposed above the second agent within the inner chamber, enabling rapid pulsed fire extinguishing. Furthermore, an outer chamber is disposed outside the inner chamber. Perfluorohexanone, a first agent, is disposed within the outer chamber, allowing the first agent to expand due to heat and be ejected. This allows the first agent to lower the temperature of the protected space and provide a continuous suppression effect on the fire source. Compared to existing technologies, this fire extinguishing device can spray different fire extinguishing substances in multiple stages to completely extinguish the fire source and prevent it from rekindling. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A structural diagram of a fire extinguishing device provided in Example 1 of the present invention;

[0035] Figure 2 This is a schematic structural diagram of a starting mechanism in an embodiment of the present invention;

[0036] Figure 3 A schematic structural diagram of a fire extinguishing device provided in the second embodiment of the present invention;

[0037] Figure 4 A schematic structural diagram of a fire extinguishing device provided in Embodiment 3 of the present invention;

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 1. Starting device; 11. Starting mechanism; 111. Connector; 112. Heat conducting sheet; 113. Fourth agent; 114. Agent chamber; 115. Lead wire; 116. Heat insulation chamber; 117. Waterproof connector; 12. Heat conducting wire;

[0040] 2. Reaction agent; 21. Second agent; 22. Third agent;

[0041] 3. Outer chamber; 31. Drain port; 32. Piston;

[0042] 4. First Pharmacy;

[0043] 5. Cover plate; 51. Nozzle; 52. Injector;

[0044] 6. Inner warehouse. DETAILED DESCRIPTION

[0045] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only. The following examples are provided to illustrate the present invention but are not intended to limit the scope of the invention.

[0047] Example 1

[0048] Combine Figure 1 As shown, the fire extinguishing device provided by the present invention includes: an activation device 1, an inner chamber 6, a reaction agent 2, an outer chamber 3, a first agent 4, and a cover plate 5. The activation device 1 is connected to the bottom of the inner chamber 6, the outer chamber 3 is sleeved on the outer wall of the inner chamber 6, and the cover plate 5 covers the open ends of the outer chamber 3 and the inner chamber 6. The reaction agent 2 is filled in the inner chamber 6, and the first agent 4 is filled between the outer chamber 3 and the inner chamber 6. The reaction of the reaction agent 2 generates heat, which causes the first agent 4 in the outer chamber 3 to expand in volume and be ejected, thereby achieving multi-stage fire extinguishing to prevent the fire from reigniting.

[0049] On the basis of the above embodiment, further, the inner chamber includes a first chamber and a second chamber, and the inner wall sides of the first chamber and the second chamber are both provided with silica gel. The reaction agent 2 is coated with the aforementioned silica gel. The reaction agent 2 includes a second agent 21 and a third agent 22. The second agent 21 serves as an aerosol generator, so that the fire extinguishing device can realize the fire extinguishing method using aerosol. The third agent 22 serves as a pulse agent, so that the fire extinguishing device can realize pulse-type rapid fire extinguishing. The second agent 21 is arranged at one end of the inner chamber 6 close to the starting device 1, and the third agent 22 is superimposed on the second agent 21, so that after the third agent 22 is started, the second agent 21 can be further started to realize multi-stage fire extinguishing. At the same time, the second agent 21 will generate a large amount of heat during the reaction, so that the first agent 4 in the outer chamber 3 can expand in volume after being heated and thus be ejected.

[0050] On the basis of the above embodiment, further, the first agent 4 is perfluorohexanone. Since perfluorohexanone has the characteristics of low boiling point and high stability, perfluorohexanone as the first agent 4 will immediately vaporize after absorbing the heat generated by the reaction of the reaction agent 2, and then the volume will expand rapidly and be ejected from the nozzle 51 of the cover plate 5.

[0051] On the basis of the above embodiment, the fire extinguishing device further includes a piston 32, which is arranged between the outer wall of the inner chamber 6 and the inner wall of the outer chamber 3. The piston 32 divides the outer chamber 3 into a first cavity and a second cavity. The first cavity is provided on the side of the piston 32 away from the starting device 1, and the second cavity is provided on the side of the piston 32 close to the starting mechanism 11. The first agent 4 using perfluorohexanone is provided in the first cavity and the second cavity, so that the perfluorohexanone in the second cavity vaporizes after receiving the heat generated by the reaction of the second agent 21. The volume of the second cavity continues to expand due to the vaporization expansion of the perfluorohexanone, thereby pushing the piston 32 to push the unvaporized liquid perfluorohexanone in the first cavity out of the nozzle 51 of the cover plate 5, so as to achieve the effect of extinguishing the fire using liquid perfluorohexanone.

[0052] On the basis of the above embodiment, the outer chamber 3 further includes a discharge port 31, which is provided at one end of the outer chamber 3 close to the cover plate 5. The discharge port 31 is used to provide a channel for releasing the gas in the second cavity when the piston 32 abuts the cover plate 5, that is, the discharge port 31 can be provided at a position below the piston 32 when the piston 32 abuts the cover plate 5, or it can form a channel by cooperating with the piston 32, so that the gas in the second cavity can be released. When the piston 32 abuts the cover plate 5, the perfluorohexanone in the second cavity has not been completely vaporized. After the perfluorohexanone that has not been vaporized is heated and vaporized, the gaseous perfluorohexanone is pushed out from the discharge port 31, so as to continuously suppress the temperature of the protection space.

[0053] On the basis of the above embodiments, further, combined with Figure 1 and Figure 2 As shown, the starting device 1 includes a starting mechanism 11 and a heat-conducting wire 12. One end of the heat-conducting wire 12 is arranged on the side of the heat-conducting plate 112 close to the inner chamber 6, and the other end of the heat-conducting wire 12 is in contact with the reactant 2. After the starting device 1 is started, heat can be generated by the starting mechanism 11, and the heat is transferred to the heat-conducting wire 12. The contact between the heat-conducting wire 12 and the reactant 2 initiates the reaction of the reactant 2.

[0054] On the basis of the above embodiments, further, combined with Figure 2As shown, the starting mechanism 11 includes: a connecting piece 111, a heat conducting plate 112, a medicine chamber 114 and a lead 115. The connecting piece 111 is provided with a first through channel, and the heat conducting plate 112 is placed in the first through channel, so that the starting mechanism 11 is isolated from the space of the inner chamber 6. One end of the medicine chamber 114 is provided with an opening, and the end of the medicine chamber 114 with the opening is connected to the connecting piece 111. The medicine chamber 114 is filled with a fourth medicine 113. One end of the lead 115 is provided between the fourth medicine 113 and the heat conducting plate 112, and is in contact with the fourth medicine 113, so that the thermal reaction of the fourth medicine 113 can be directly started after being ignited by the lead 115.

[0055] On the basis of the above embodiments, further, combined with Figure 2 As shown, the starting mechanism 11 also includes: an insulating chamber 116, both ends of the insulating chamber 116 are provided with openings, one end of the insulating chamber 116 is connected to the connecting piece 111, the insulating chamber 116 is wrapped around the outer wall side of the medicine chamber 114, a cavity is provided between the insulating chamber 116 and the medicine chamber 114, and the lead 115 is provided in the aforementioned cavity formed between the insulating chamber 116 and the medicine chamber 114 to achieve a heat insulation effect, so that the medicine in the medicine chamber 114 will not be heated and triggered by mistake.

[0056] On the basis of the above embodiments, further, combined with Figure 2 As shown, the starting mechanism 11 also includes: a waterproof connector 117, the other end of the heat-insulating chamber 116 is connected to the waterproof connector 117, the waterproof connector 117 is provided with a second through-channel, and the end of the lead wire 115 away from the fourth agent 113 passes through the second through-channel, so that the fourth agent 113 in the agent chamber 114 will not be dampened by water.

[0057] On the basis of the above embodiments, further, combined with Figure 1 As shown, the cover plate 5 is provided with a nozzle 51 and an injector 52. A plurality of nozzles 51 are evenly distributed in the area where the cover plate 5 covers the inner chamber 6 and the outer chamber 3. The nozzles 51 pass through the cover plate 5. In this embodiment, the injector 52 is an atomizing nozzle. The injector 52 is arranged at the nozzle 51 above the outer chamber 3. The injector 52 can atomize the liquid perfluorohexanone sprayed from the nozzle 51, so that the liquid perfluorohexanone can cover a wider space.

[0058] Example 2

[0059] Combine Figure 3As shown, this embodiment has a better fire extinguishing effect than the first embodiment when extinguishing a solid deep fire. Based on the above-mentioned first embodiment, the difference from the first embodiment is that: a dry powder fire extinguishing agent is provided in the first cavity, so that the fire extinguishing device can spray the fire extinguishing agent on the fire source when encountering excessive temperature and pressure. The injector 52 is provided on all the nozzles 51 on the cover plate 5 above the inner chamber 6 and the outer chamber 3. The nozzles 51 of this embodiment have a diffusion effect, so that the fire extinguishing agent can be accurately released.

[0060] Since the other components of this embodiment are the same as those in the first embodiment, they have the same technical effects. Other components will not be described in detail here. The fire extinguishing device protected by this embodiment also has the main beneficial effects of the first embodiment.

[0061] Example 3

[0062] Combine Figure 4 As shown, this embodiment has better fire extinguishing ability than the above-mentioned embodiment 1 and embodiment 2 under the condition of the same device volume. On the basis of the above-mentioned embodiment 1, the difference from embodiment 1 is that: no agent is provided in the second cavity, and an opening is provided on the side wall of the inner chamber 6 near the end of the starting device 1, and the inner wall of the inner chamber 6 is provided with an opening, and a spike is provided at the opening. When the second agent 21 reacts to below the opening, under the action of air pressure, the silica gel covering the outside of the reaction agent 2 expands from the inside to the outside and is scratched by the action of the spike at the opening, and the second agent 21 is released to the lower side of the piston 32, pushing the liquid perfluorohexanone as the first agent 4 to be sprayed out, so as to achieve the effect of using liquid perfluorohexanone to extinguish the fire.

[0063] Since the other components of this embodiment are the same as those in the first embodiment, they have the same technical effects. Other components will not be described in detail here. The fire extinguishing device protected by this embodiment also has the main beneficial effects of the first embodiment.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fire extinguishing device, characterized in that: include: Starting device, inner chamber, outer chamber and cover; The starting device is connected to the bottom of the inner chamber; the inner chamber is filled with a reaction agent; The outer chamber is sleeved on the outer wall of the inner chamber, and the cover plate is provided on the open ends of the outer chamber and the inner chamber; A first medicine is filled between the outer chamber and the inner chamber; the inner chamber includes a first chamber and a second chamber, and the second chamber is located on a side of the first chamber away from the starting device; The reaction reagents include a second reagent and a third reagent; the second reagent is filled in the first chamber, and the third reagent is filled in the second chamber; The first agent is perfluorohexanone, the second agent is an aerosol generating agent, and the third agent is a pulse agent.

2. The fire extinguishing device according to claim 1, characterized in that: The fire extinguishing device further comprises a piston; The piston is arranged between the outer wall of the inner chamber and the inner wall of the outer chamber.

3. The fire extinguishing device according to claim 2, characterized in that: A first cavity is provided on a side of the piston away from the starting device, and a second cavity is provided on a side of the piston close to the starting device.

4. The fire extinguishing device according to claim 3, characterized in that: The outer chamber is provided with a discharge port; The discharge port is provided at one end of the outer chamber close to the cover plate, and the discharge port is used to provide a channel for releasing the gas in the second cavity when the piston abuts against the cover plate.

5. The fire extinguishing device according to claim 1, characterized in that: The starting device includes: a starting mechanism and a heat conducting wire; One end of the heat conducting wire is arranged at the connection between the starting mechanism and the inner chamber, and the other end of the heat conducting wire is in contact with the reaction reagent.

6. The fire extinguishing device according to claim 5, characterized in that: The starting mechanism includes: a connecting piece, a heat conducting sheet, a medicine chamber and a lead; The connecting member is provided with a first through-channel, and the heat conducting sheet is placed in the first through-channel; One end of the medicine bin is provided with an opening, the open end of the medicine bin is connected to the connecting piece, and the medicine bin is filled with a fourth medicine; One end of the lead is arranged between the fourth medicine and the heat conducting sheet and in contact with the fourth medicine, and the other end is arranged on the outer wall side of the medicine chamber.

7. The fire extinguishing device according to claim 6, characterized in that: The starting mechanism further comprises: a heat-insulating chamber; The heat-insulating chamber is wrapped around the outer wall side of the medicine chamber, and the lead is located in the heat-insulating chamber, and the upper end of the heat-insulating chamber is connected to the connecting piece.

8. The fire extinguishing device according to claim 7, characterized in that: The starting mechanism further includes: a waterproof connector; The waterproof joint is connected to the lower end of the thermal insulation compartment; The waterproof joint is provided with a second through-channel, and the end of the lead wire away from the fourth medicine passes through the second through-channel.

9. The fire extinguishing device according to claim 1, characterized in that: The cover plate is provided with a nozzle and an injector; There are multiple nozzles, and the multiple nozzles are arranged on the cover plate; The ejector is arranged at the nozzles above the inner chamber and the outer chamber; or is arranged at the nozzle above the outer chamber.

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