Non-stored-pressure fire extinguishing device

Abstract

The utility model discloses a non-pressure storage type fire extinguishing device which has the advantage of simple and effective cooling measures. The non-pressure-storage type fire extinguishing device comprises an outer shell, a supporting shell, a diffusible fire extinguishing agent, a gas generating agent and a trigger starter, the outer shell is provided with a structural inner cavity, the supporting shell is provided with a material carrying cavity, the supporting shell is installed in the structural inner cavity, the fire extinguishing agent is filled in the structural inner cavity, the gas generating agent is filled in the material carrying cavity, and the trigger starter is arranged in the material carrying cavity. A plurality of jet orifices communicating with the structure inner cavity are formed in the outer surface of the outer shell, a plurality of gas jet orifices communicating with the material carrying cavity are formed in the surface of the supporting shell, the trigger starter is installed on the outer shell and used for igniting a gas generating agent, and a cooling structure is wound on the outer surface of the supporting shell.

Description

Technical Field

[0001] The utility model relates to the field of fire fighting equipment, in particular to a non-pressure storage type fire extinguishing device. Background Art

[0002] As a new type of fire extinguishing product, non-storage dry powder fire extinguishers are widely used in micro-sized places and narrow spaces such as battery packs, distribution cabinets, and small energy stations. However, when this type of fire extinguisher uses a gas generating agent to push the fire extinguishing agent out, the gas generating agent (such as an aerosol generating agent) generates gas quickly, produces a large amount of gas, and generates high temperature, so it needs to be cooled. However, the current cooling measures are not reliable and effective, and the structure is relatively complex, with a small number of outlets. All the gas acts on the fire extinguishing agent. If the dry powder cannot be discharged in time, it will bring certain safety risks. The outlets are usually concentrated in a certain area, with poor coverage and low powder discharge efficiency, and cannot effectively extinguish the fire source.

[0003] Therefore, there is an urgent need for a non-pressure storage fire extinguishing device with simple and effective cooling measures to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a non-pressure storage type fire extinguishing device with simple and effective cooling measures.

[0005] To achieve the above-mentioned purpose, the utility model provides a non-pressure storage fire extinguishing device, which includes an outer shell, a supporting shell, a diffusible fire extinguishing agent, a gas generating agent and a trigger starter, the outer shell having a structural inner cavity, the supporting shell having a loading cavity, the supporting shell being installed in the structural inner cavity, the fire extinguishing agent is filled in the structural inner cavity, the gas generating agent is loaded in the loading cavity, the outer surface of the outer shell is provided with a plurality of injection ports connected to the structural inner cavity, the surface of the supporting shell is provided with a plurality of gas injection ports connected to the loading cavity, the trigger starter is installed in the outer shell and is used to ignite the gas generating agent, and the outer surface of the supporting shell is wrapped with a cooling structure.

[0006] Preferably, the supporting shell is a box-shaped structure made of iron material, and the cooling structure is a wire made of aluminum material.

[0007] Preferably, the outer shell is arranged in a spherical or quasi-spherical shape, and the outer shell is formed by splicing a plurality of arc-shaped side panels.

[0008] Preferably, a structural groove is enclosed between the side edges of two adjacent arc-shaped side plates, and a plurality of injection ports arranged along the length direction of the structural groove are provided at the bottom of the structural groove.

[0009] Preferably, the structural groove is arranged in a wedge shape, a square shape or an arc shape.

[0010] Preferably, the trigger initiator is clamped in the structural groove, and the trigger initiator blocks the injection port when the gas generating agent is not ignited.

[0011] Preferably, the outer shell is provided with a penetration opening communicating with the structural inner cavity at the intersection of the ends of the structural groove, and the trigger starter penetrates into the structural inner cavity through the penetration opening to connect with the gas generating agent.

[0012] Preferably, the support shell is mounted on the outer shell by a support frame, and the support shell is suspended at the center of the inner cavity of the structure.

[0013] Preferably, the support frame includes at least one mounting rod, one end of the mounting rod is mounted on the support shell, and the other end of the mounting rod is mounted on the arc-shaped side plate.

[0014] Preferably, a mounting hook or a mounting ring is installed on the surface of the outer shell.

[0015] Compared with the prior art, when the non-pressure storage fire extinguishing device of the utility model is used, the trigger starter is triggered and responds when a fire occurs, igniting the gas generator, and the gas generator instantly generates a large amount of aerosol-like substances, which gush out from the gas nozzle into the inner cavity of the structure. The pressure in the inner cavity of the structure increases sharply, and the fire extinguishing agent in the inner cavity of the structure is pressed out. The fire extinguishing agent is rapidly ejected outward through the nozzle, instantly covering the fire source, and achieving the purpose of rapid fire extinguishing. After the gas generator is ignited, high temperature is generated, and the heat is transferred to the supporting shell, causing the temperature of the supporting shell to rise sharply. The utility model uses a cooling structure to wrap around the supporting shell, and the heat of the supporting shell is extracted and dissipated outward by the cooling structure, which will reduce the temperature of the supporting shell as much as possible, avoiding the possibility of re-ignition or damage to other items due to excessive temperature. It can be seen that the structure using this cooling measure is relatively simple, and the cooling measure is reliable and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the non-pressure storage type fire extinguishing device of the utility model.

[0017] Figure 2 It is a three-dimensional diagram of the non-pressure storage type fire extinguishing device of the utility model after the starter is triggered after separation.

[0018] Figure 3 It is a three-dimensional diagram of the non-pressure storage type fire extinguishing device of the utility model after the cooling structure is hidden and an arc-shaped side plate is separated.

[0019] Figure 4 It is a side view of the non-pressure storage type fire extinguishing device of the utility model.

[0020] Figure 5 yes Figure 4The non-pressure fire extinguishing system shown is along Figure 4 Sectional view after cutting along the AA line segment.

[0021] Figure 6 It is an exploded view of the non-pressure storage type fire extinguishing device of the utility model after the trigger starter is hidden.

[0022] Figure 7 It is an exploded view of the supporting shell and the gas generating agent contained therein. DETAILED DESCRIPTION

[0023] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.

[0024] like Figures 1 to 7 As shown, the utility model provides a non-pressure storage type fire extinguishing device 100, which can effectively reduce the temperature when extinguishing a fire and optimize the structure of the fire extinguishing device.

[0025] The non-pressure storage type fire extinguishing device 100 of the utility model comprises an outer shell 10, a supporting shell 20, a diffusible fire extinguishing agent (not shown), a gas generating agent 30 and a trigger starter 40. The outer shell 10 has a structural inner cavity 11, the supporting shell 20 has a loading cavity 21, the supporting shell 20 is installed in the structural inner cavity 11, the fire extinguishing agent is filled in the structural inner cavity 11, and the gas generating agent 30 is loaded in the loading cavity 21. The outer surface of the outer shell 10 is provided with a plurality of injection ports 12 connected to the structural inner cavity 11, and the outer surface of the supporting shell 20 is provided with a plurality of gas ejection ports 22 connected to the loading cavity 21. The trigger starter 40 is installed on the outer shell 10 and is used to ignite the gas generating agent 30. The outer surface of the supporting shell 20 is wrapped with a cooling structure 50.

[0026] When a fire occurs, the trigger starter 40 is triggered and responds, igniting the gas generating agent 30. The gas generating agent 30 instantly generates a large amount of aerosol-like substances, which gush out from the gas outlet 22 into the structural inner cavity 11. The pressure of the structural inner cavity 11 increases sharply, pressing the fire extinguishing agent in the structural inner cavity 11 out. The fire extinguishing agent is rapidly ejected outward through the injection port 12, instantly covering the fire source, thereby achieving the purpose of rapid fire extinguishing.

[0027] After the gas generating agent 30 is ignited, high temperature is generated, and the heat is transferred to the supporting shell 20, causing the temperature of the supporting shell 20 to rise sharply. The utility model uses a cooling structure 50 to wrap around the supporting shell 20, and the heat of the supporting shell 20 is output through the cooling structure 50. The heat is dissipated outward, which will reduce the temperature of the supporting shell 20 as much as possible, avoiding the possibility of re-ignition or damage to other items due to excessive temperature. It can be seen that the structure of this cooling measure is relatively simple, and the cooling measure is reliable and effective.

[0028] The fire extinguishing agent can be selected as an ultra-fine dry powder fire extinguishing agent, a foam fire extinguishing agent or an aqueous solution. In the embodiment provided by the utility model, the fire extinguishing agent is selected as an ultra-fine dry powder fire extinguishing agent. At this time, the gas generator 30 is preferably a gas generator with a large gas production and a low water content in the gas production (to prevent the water from being incorporated into the fire extinguishing agent during the injection process to form agglomerates and block the injection port 12). The gas product is mostly an organic high-nitrogen gas generator 30 of environmentally friendly nitrogen, such as a gas generator 30 with nitroguanidine as a gas generator. The gas generator 30 is made into an aerosol generator of columnar, blocky, or lumpy solid agents, which produces a large amount of aerosol-like substances when heated or burned. When the fire extinguishing agent is selected as a foam fire extinguishing agent or an aqueous solution, the water content of the gas produced by the gas generator 30 is not limited.

[0029] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the support shell 20 is a box-shaped structure made of iron, and the cooling structure 50 is a wire made of aluminum. The melting point of iron is about 1500°C, which is enough to withstand the temperature when the gas generating agent 30 burns. The cooling structure 50 is made of aluminum, which has good thermal conductivity and can quickly conduct the heat of the support shell 20 to avoid excessive heat accumulation. The melting point of aluminum is about 600°C, and the cooling structure 50 will not be melted when the gas generating agent 30 burns.

[0030] Preferably, the support shell 20 is a square box, and the cooling structure 50 is wound around the six sides of the square box, but the present invention is not limited thereto. The support shell 20 can also be set to a spherical, triangular, pyramidal, prism or other shape.

[0031] like Figures 1 to 6 As shown, the outer shell 10 is arranged in a spherical or quasi-spherical shape, and a plurality of injection ports 12 can be evenly arranged on the outer shell 10 to achieve a wide angle and wide range of injection of the fire extinguishing agent. In the embodiment provided by the utility model, the outer shell 10 is roughly similar in shape to a football, but according to actual needs, it can also be designed to be an ellipsoid, a water drop, etc.

[0032] Specifically, the outer shell 10 is spliced ​​by a plurality of arc-shaped side panels 13 to facilitate production and assembly. Further, in the embodiment provided by the utility model, the outer shell 10 is spliced ​​by 6 arc-shaped side panels 13, but is not limited to this number of layouts. A structural groove 14 is surrounded between the sides of two adjacent arc-shaped side panels 13, and a plurality of injection ports 12 arranged along the length direction of the structural groove 14 are provided at the bottom of the structural groove 14. In this way, a large number of injection ports 12 are arranged on the outer surface of the outer shell 10, so that the fire extinguishing agent can be discharged rapidly in a short time, ensuring safety in use, and the injection ports 12 are evenly dispersed, with a large coverage area and high powder discharge efficiency. Moreover, the injection ports 12 are arranged quite evenly on the surface of the outer shell 10, so that the fire extinguishing agent inside can be sprayed out evenly and dispersedly.

[0033] In the embodiment provided by the utility model, a total of 12 structural grooves 14 are provided, but the number is not limited to this. At least 15 injection ports 12 are provided at the bottom of each structural groove 14, but the number is not limited to this. Further, the structural grooves 14 are arranged in a wedge shape, but according to actual design requirements, they can also be designed to be square, arc-shaped, etc.

[0034] like Figures 1 to 6 As shown, the trigger starter 40 is clamped in the structural groove 14, and the trigger starter 40 blocks the injection port 12 when the gas generating agent 30 is not ignited. After the trigger starter 40 is clamped in the structural groove 14, it has a "stealth" effect, and the integrity of the non-pressure storage type fire extinguishing device 100 is better. The trigger starter 40 blocks the injection port 12 and prevents the fire extinguishing agent from flowing out of the injection port 12.

[0035] Preferably, when ultrafine dry powder fire extinguishing agent is selected, the trigger starter 40 is installed in the structural groove 14 by means of a card-mounting method. At this time, the ultrafine dry powder fire extinguishing agent inside cannot flow out from the injection port 12 due to the obstruction of the trigger starter 40. Of course, in order to improve the reliability and stability of the plugging, the trigger starter 40 can be card-mounted and bonded to the structural groove 14 by means of glue, setting a back adhesive, or even double-sided adhesive. The trigger starter 40 is installed more stably, and the gap is eliminated, effectively blocking the outflow of the ultrafine dry powder fire extinguishing agent. In addition, the inner support shell 20 can be left untreated, leaving the gas ejection port 22 open. Of course, the support shell 20 can also be covered with a film, paper, etc., or the support shell 20 can be covered with a glue layer by brushing glue, thereby closing the gas ejection port 22 to prevent the ultrafine dry powder fire extinguishing agent from mixing into the loading chamber 21. However, no matter which of the above methods is used, it is easy to be broken during fire extinguishing, leaving the gas ejection port 22 open.

[0036] When foam fire extinguishing agent or water agent is used, the trigger starter 40 is waterproofed and can be mounted to the structural groove 14 by gluing, and sealed around to prevent leakage. The supporting shell 20 can be waterproofed by brushing glue or film coating to seal the gas ejection port 22 to prevent the foam fire extinguishing agent or water agent from flowing into the loading chamber 21. However, no matter which sealing method is adopted, it is easy to be broken during fire extinguishing, exposing the ejection port.

[0037] Preferably, the trigger starter 40 is started by a thermal initiator. Of course, according to actual needs, an electric initiator can also be used for starting.

[0038] When a thermal initiator is used for starting, the trigger starter 40 is designed as a thermistor. When a fire occurs, the thermistor is ignited and burns along the wire until the gas generator 30 is ignited. When the gas generator 30 burns, a large amount of aerosol will be generated instantly. The aerosol flows rapidly into the structural cavity 11, causing the pressure of the structural cavity 11 to increase instantly. After burning, the thermistor becomes loose and falls off, and has no blocking effect. The high-temperature and high-pressure gas inside is mixed with the fire extinguishing agent and is rapidly ejected outward at a very high speed, achieving the effect of efficient fire extinguishing. The thermistor can be ignited by the fire source at the fire scene, or it can be ignited by a fuse, which can be electrically started or mechanically started. In the embodiment provided by the utility model, the thermistor is in the form of a strip, and can also be applied in the form of a sheet or a strip according to actual needs.

[0039] When an electric initiator is used for starting, a starter (not shown) is installed on the outer surface of the support shell 20, and the starter is connected to an external induction device through an electric wire. The starter is an electric heating device or an electric ignition device. The induction device is a temperature controller, a manual controller or a remote electronic control device. When a fire occurs, the temperature controller senses high temperature, or the on-site personnel discover the fire, or the remote management personnel receive a fire alarm, the induction device transmits a control signal or an electric signal to the starter through the wire, ignites or heats the gas generator 30, and allows the gas generator 30 to burn.

[0040] It is worth noting that when an electric initiator is used for starting, the trigger initiator 40 does not have to be installed in the structural groove 14, but can be outside the outer shell 10 or simply attached to the outer surface of the outer shell 10. However, when a thermal initiator is used for starting, it is preferably mounted in the structural groove 14.

[0041] like Figure 2 , Figure 3 and Figure 5 As shown in the figure, the outer shell 10 is provided with a through hole 15 communicating with the structural inner cavity 11 at the intersection of the end of the structural groove 14, and the trigger starter 40 penetrates into the structural inner cavity 11 through the through hole 15 and connects with the gas generating agent 30. The through hole 15 is generally triangular, but can be set to be circular, square, etc. The injection port 12 is generally circular, but can be set to be elliptical, square, etc. In the embodiment provided by the utility model, the part of the trigger starter 40 (thermal line) provided in the structural inner cavity 11 is not shown, but it should be understood that it exists and is necessary.

[0042] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the support shell 20 is mounted on the outer shell 10 by a support frame 60, and the support shell 20 is suspended at the center of the structural inner cavity 11. The support shell 20 is located at the center of the structural inner cavity 11, so that the gas generating agent 30 carried by it is also located at the center of the structural inner cavity 11, so that the generated aerosol is dispersed from the center of the structural inner cavity 11 to all directions. Specifically, the support frame 60 includes at least one mounting rod 61, one end of the mounting rod 61 is mounted on the support shell 20, and the other end of the mounting rod 61 is mounted on the arc-shaped side plate 13. Preferably, the support frame 60 includes 6 mounting rods 61, which can stably fix the support frame 60. Preferably, the mounting rod 61 is installed and fixed using screws. Of course, according to actual needs, it can also be fixed by snap-fitting, welding, etc. Preferably, the support shell 20 is roughly square, and includes a cover plate 23 and a square frame 24. The gas generating agent 30 is loaded into the square frame 24, and the cover plate 23 is installed in the square frame 24 and covers the gas generating agent 30. The cover plate 23 can be fixed to the frame 24 by means of screws, buckles, etc.

[0043] During installation, the arc-shaped side panels 13 are spliced ​​one by one. During the splicing process, the mounting rods 61 are also fixed to the arc-shaped side panels 13. Finally, the non-pressure storage type fire extinguishing device 100 is assembled.

[0044] It is worth noting that the non-pressure storage type fire extinguishing device 100 of the utility model can be hung for use. When a fire occurs, the fire extinguishing agent is sprayed and dispersed in all directions, covering the fire source from top to bottom to achieve fire extinguishing. For the convenience of hanging, the surface of the outer shell 10 is installed with a mounting ring 16, but the mounting ring 16 can also be replaced by a mounting hook.

[0045] In addition, the non-pressure storage fire extinguishing device 100 of the present invention can also be thrown directly to the center of the fire source. At this time, when the fire extinguishing agent is sprayed in all directions like a fountain, it can also cover the fire source to achieve fire extinguishing, which is more flexible and convenient to use.

[0046] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A non-pressure storage type fire extinguishing device, characterized in that: It includes an outer shell, a supporting shell, a diffusible fire extinguishing agent, a gas generating agent and a trigger starter, the outer shell has a structural inner cavity, the supporting shell has a loading cavity, the supporting shell is installed in the structural inner cavity, the fire extinguishing agent is filled in the structural inner cavity, the gas generating agent is loaded in the loading cavity, the outer surface of the outer shell is provided with a plurality of injection ports connected with the structural inner cavity, the surface of the supporting shell is provided with a plurality of gas injection ports connected with the loading cavity, the trigger starter is installed on the outer shell and is used to ignite the gas generating agent, and the outer surface of the supporting shell is wrapped with a cooling structure.

2. The non-pressure storage type fire extinguishing device according to claim 1, characterized in that: The supporting shell is a box-shaped structure made of iron material, and the cooling structure is a wire made of aluminum material.

3. The non-pressure storage type fire extinguishing device according to claim 1, characterized in that: The outer shell is arranged in a spherical or quasi-spherical shape, and is formed by splicing a plurality of arc-shaped side panels.

4. The non-pressure storage type fire extinguishing device according to claim 3, characterized in that: A structural groove is formed between the side edges of two adjacent arc-shaped side plates, and a plurality of injection ports arranged along the length direction of the structural groove are provided at the bottom of the structural groove.

5. The non-pressure storage type fire extinguishing device according to claim 4, characterized in that: The structural grooves are arranged in a wedge shape, a square shape or an arc shape.

6. The non-pressure storage type fire extinguishing device according to claim 4, characterized in that: The trigger initiator is clamped in the structural groove, and the trigger initiator blocks the injection port when the gas generating agent is not ignited.

7. The non-pressure storage type fire extinguishing device according to claim 4, characterized in that: The outer shell is provided with a penetration opening communicated with the structural inner cavity at the intersection of the ends of the structural groove, and the trigger starter penetrates into the structural inner cavity through the penetration opening and is connected with the gas generating agent.

8. The non-pressure storage type fire extinguishing device according to claim 3, characterized in that: The supporting shell is installed on the outer shell by a supporting frame, and the supporting shell is suspended at the center of the inner cavity of the structure.

9. The non-pressure storage type fire extinguishing device according to claim 8, characterized in that: The support frame includes at least one mounting rod, one end of the mounting rod is mounted on the support shell, and the other end of the mounting rod is mounted on the arc-shaped side plate.

10. The non-pressure storage type fire extinguishing device according to claim 1, characterized in that: A mounting hook or a mounting ring is installed on the surface of the outer shell.

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