Improved non-stored-pressure perfluorohexanone fire extinguishing device

Abstract

The utility model belongs to the technical field of fire fighting, and relates to an improved non-stored-pressure perfluorohexanone fire extinguishing device which comprises a shell, a starting device and a nozzle are arranged on the upper portion of the shell, the starting device is connected with a gas producing chemical pipe and extends into an inner cavity of the shell, and a liquid fire extinguishing medium is arranged in the inner cavity of the shell. The nozzle is characterized in that a porous barrier net is arranged between the inner cavity of the shell and the inner end of the nozzle. The fire extinguishing nozzle has the advantages that the nozzle is not blocked, effective spraying of fire extinguishing media is guaranteed, product functions are guaranteed, the structure is simple, and the requirement of the standard XF 602-2010 6.6. 1 can be completely met.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire fighting and relates to an improved non-pressure storage perfluorohexanone fire extinguishing device. Background Art

[0002] The shape of the non-pressurized perfluorohexanone fire extinguishing device is similar to that of a power bank. Currently, the power bank-type non-pressurized perfluorohexanone fire extinguishing device is model YF0.16Q (structure reference attached Figure 1 ), due to its own characteristics, the outer layer of the gas-generating medicine tube 3 is a non-metallic protective shedding layer 4. When fired, certain fragments of the protective shedding layer 4 will separate from the matrix and be ejected from the nozzle 7 together with the liquid fire extinguishing medium 6 under the action of the gas. At this time, the protective shedding fragments will often cause the nozzle to be blocked, so that the fire extinguishing medium cannot be effectively ejected, and the fire extinguishing performance is reduced.

[0003] According to the provisions of standard XF 602-2010 6.6.1, the residual rate of the product fire extinguishing medium should be ≤5%. Due to the above reasons, the existing non-pressurized perfluorohexanone fire extinguishing devices often cannot meet the above standard requirements. Summary of the invention

[0004] The purpose of the utility model is to provide an improved non-pressurized perfluorohexanone fire extinguishing device in view of the above-mentioned problems. The utility model mainly comprises a porous barrier net installed at the front end of the nozzle to block the falling debris and ensure that the nozzle is not blocked. The liquid fire extinguishing medium can be smoothly ejected from the nozzle, thereby ensuring product performance and meeting the requirements of standard XF 602-2010 6.6.1 that the residual rate of fire extinguishing medium is ≤5%.

[0005] The main technical scheme of the utility model is: an improved non-pressurized perfluorohexanone fire extinguishing device, comprising a shell, a starting device and a nozzle are arranged on the upper part of the shell, the starting device is connected to the gas-producing medicine tube and extends into the inner cavity of the shell, the inner cavity of the shell is filled with liquid fire extinguishing medium, and is characterized in that a porous barrier net is arranged between the inner cavity of the shell and the inner end of the nozzle.

[0006] Preferably, the porous barrier net is provided with a plurality of evenly distributed circular holes of equal diameter, and the diameter of the circular holes is smaller than the inner diameter of the nozzle.

[0007] Further preferably, the diameter of the circular hole is not greater than 1 / 3 of the inner diameter of the nozzle.

[0008] Preferably, the porous barrier net is fixed to the upper wall and the side wall of the inner cavity of the shell.

[0009] Further preferably, one end of the porous barrier net is fixed to the upper wall of the shell cavity between the starting device and the nozzle, and the other end of the porous barrier net is fixed to the side wall of the shell cavity on the nozzle side.

[0010] The improved non-pressure storage perfluorohexanone fire extinguishing device of the utility model has the following advantages: when firing, the detached objects of the protective shedding layer are blocked on one side of the porous barrier net, so that the detached objects are isolated and the liquid fire extinguishing medium is not affected from reaching the nozzle through the circular holes of the porous barrier net to spray and extinguish the fire.

[0011] The improved non-storage perfluorohexanone fire extinguishing device of the utility model has the advantages of no blockage of the nozzle, ensuring effective spraying of the fire extinguishing medium and ensuring product functions, and has a simple structure and can fully meet the requirements of standard XF 602-2010 6.6.1. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the existing YF0.16Q type non-pressurized perfluorohexanone fire extinguishing device.

[0013] Figure 2 This is a schematic structural diagram of the improved non-pressurized perfluorohexanone fire extinguishing device according to an embodiment of the utility model.

[0014] Figure 3 It is a schematic diagram of the enlarged structure of the porous barrier net in the embodiment.

[0015] In the figure, 1-starting device, 2-gas generating agent, 3-gas generating medicine tube, 4-protective shedding layer, 5-shell, 6-liquid fire extinguishing medium, 7-nozzle, 8-porous barrier net, 9-shedding fragments, 10-gas propulsion. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the embodiments and drawings.

[0017] Example

[0018] An improved non-pressurized perfluorohexanone fire extinguishing device Figure 2 It mainly includes a shell 5, a starting device 1 and a nozzle 7 are provided on the upper part of the shell 5, the starting device is connected to the gas-producing medicine pipe 3 and extends into the inner cavity of the shell 5, and the inner cavity of the shell 5 is filled with a liquid fire extinguishing medium 6. The improvement support is to set a porous barrier net 8 between the inner cavity of the shell 5 and the inner end of the nozzle 7.

[0019] In the embodiment, the porous barrier net 8 is provided with a plurality of evenly distributed circular holes of equal diameter (see attached Figure 3 ), the diameter of the circular hole is not greater than 1 / 3 of the inner diameter of the nozzle 7.

[0020] In the embodiment, one end of the porous barrier net 8 is fixed to the upper wall of the inner cavity of the shell 5 between the starting device 1 and the nozzle 7, and the other end of the porous barrier net 8 is fixed to the side wall of the inner cavity of the shell 5 on the nozzle 7 side.

[0021] The starting device 1 of the embodiment product is started, and the gas generating agent 2 in the gas generating tube 3 generates a large amount of gas. When a certain air pressure and a certain temperature are reached in the gas generating tube 3, the protective shedding layer 4 outside the gas generating tube 3 begins to rupture from the bottom, releasing a large amount of gas. When the protective shedding layer 4 ruptures, some fragments will fall off, and the released gas pushes 10 liquid fire extinguishing medium 6 and the detached fragments 9 through the porous isolation net 8 to isolate the detached fragments 9. The liquid fire extinguishing medium 6 passes through the circular holes of the porous isolation net 8, and the filtered liquid fire extinguishing medium 6 is sprayed from the nozzle 7. The detached fragments 9 are isolated on the other side by the porous isolation net 8.

[0022] The improved structure of the embodiment ensures that the nozzle is not blocked, thereby fully realizing the fire extinguishing function of the product, and also meets the requirements of standard XF 602-2010 6.6.1. Comparative Example

[0023] The comparative example adopts the existing commercially available YF0.16Q type non-pressure storage perfluorohexanone fire extinguishing device (see Appendix Figure 1 ).

[0024] The comparative example and the embodiment were subjected to comparative tests under the same test conditions, and the test results are shown in the table below.

[0025]

[0026] From the comparison of the above test results, it can be seen that the improved structure of the embodiment has the advantages of preventing the nozzle from being blocked, ensuring the effective spraying of the fire extinguishing medium, and ensuring the product function.

Claims

1. An improved non-pressurized perfluorohexanone fire extinguishing device, comprising a shell, a starting device and a nozzle are provided on the upper part of the shell, the starting device is connected to the gas-generating medicine tube and extends into the inner cavity of the shell, and the inner cavity of the shell is filled with liquid fire extinguishing medium, characterized in that A porous barrier net is arranged between the inner cavity of the shell and the inner end of the nozzle.

2. The improved non-pressurized perfluorohexanone fire extinguishing device according to claim 1, characterized in that The porous barrier net is provided with a plurality of evenly distributed circular holes of equal diameter, wherein the diameter of the circular holes is smaller than the inner diameter of the nozzle.

3. The improved non-pressurized perfluorohexanone fire extinguishing device according to claim 2 is characterized in that The diameter of the circular hole is no greater than 1 / 3 of the inner diameter of the nozzle.

4. The improved non-pressurized perfluorohexanone fire extinguishing device according to claim 1 or 2, characterized in that The porous barrier net is fixed on the upper wall and the side wall of the inner cavity of the shell.

5. The improved non-pressurized perfluorohexanone fire extinguishing device according to claim 4 is characterized in that One end of the porous barrier net is fixed to the upper wall of the inner cavity of the shell between the starting device and the nozzle, and the other end of the porous barrier net is fixed to the side wall of the inner cavity of the shell on the nozzle side.

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