Atomizing nozzle for perfluorohexanone fire extinguishing device

Abstract

The utility model discloses an atomizing spray head for a perfluorohexanone fire extinguishing device, which relates to the technical field of accessories of the perfluorohexanone fire extinguishing device and comprises a spray head main body, the spray head main body is connected with a gas cylinder of the perfluorohexanone fire extinguishing device and is provided with a channel communicated with the gas cylinder, the atomizing spray head further comprises a plurality of atomizing holes, and each atomizing hole is communicated with the channel. The atomization holes are distributed in the circumferential direction of the end wall of the spray head body, a rotating core used for dividing the atomization hole into a plurality of spraying holes is installed in each atomization hole, and a turbulent flow structure is arranged on each rotating core. The atomizing hole is subdivided into a plurality of spraying holes through the rotating core, shunting atomization is achieved, and meanwhile the atomizing effect of the nozzle can be further improved by arranging a streaming structure on the rotating core.

Description

Technical Field

[0001] The utility model relates to the technical field of accessories for perfluorohexanone fire extinguishing devices, in particular to an atomizing nozzle for a perfluorohexanone fire extinguishing device. Background Art

[0002] Perfluorohexanone fire extinguishing agent is used as a fire extinguishing agent in various scenarios. In particular, because perfluorohexanone has good electrical insulation properties, it is often used in electronic equipment scenarios such as computer rooms. In order to maximize the fire extinguishing effect of perfluorohexanone, the nozzle needs to atomize the liquid perfluorohexanone into small droplets as much as possible so that the perfluorohexanone can quickly absorb the ambient heat and vaporize to achieve a rapid cooling effect.

[0003] Therefore, if you want to improve the atomization effect of the nozzle on perfluorohexanone, the purpose of diverting and atomizing the perfluorohexanone fire extinguishing agent is generally achieved by increasing the number of diverting holes and water mist nozzles. For example, the public text CN 218485050 U discloses a non-pressure storage perfluorohexanone fire extinguishing device, whose atomizing nozzle is composed of a sleeve-connected pipe, a truncated cone nozzle and a nozzle, wherein the interior of the truncated cone nozzle is provided with an injection cavity, and one end of the sleeve-connected pipe in this example is fixed to the bottom surface of the truncated cone nozzle, and it is connected to the injection cavity, and the other end of the sleeve-connected pipe is connected to the transfer pipe to achieve the connection of perfluorohexanone, and finally, by respectively setting the nozzle on the side and top surface of the truncated cone nozzle, the perfluorohexanone is atomized and sprayed through the five nozzles on the truncated cone nozzle, so as to achieve safe and rapid fire extinguishing. In this way, the effect of diverting atomization is achieved by increasing the number of nozzles, but the atomization effect of this method is limited. Utility Model Content

[0004] The utility model aims to provide an atomizing nozzle for a perfluorohexanone fire extinguishing device, which subdivides the atomizing hole into a plurality of injection holes through a rotating core to achieve split flow atomization, and at the same time, a flow bypass structure is arranged on the rotating core to further improve the atomizing effect of the nozzle.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A spray nozzle for a perfluorohexanone fire extinguishing device comprises a nozzle body, the nozzle body is connected to the gas cylinder of the perfluorohexanone fire extinguishing device and has a channel connected to the gas cylinder, and also comprises a plurality of spray holes, each of which is connected to the channel, and the plurality of spray holes are distributed circumferentially along the end wall of the nozzle body, and a rotating core for dividing the spray hole into a plurality of spray holes is installed in each of the spray holes, and a turbulent flow structure is provided on the rotating core, so as to turbulently spray the perfluorohexanone fire extinguishing agent transmitted from the gas cylinder of the perfluorohexanone fire extinguishing device.

[0007] In some optional embodiments, the rotor core includes a liquid outlet pipe with a central opening, and a plurality of baffles are evenly arranged along the circumference of the outer wall of the liquid outlet pipe. Adjacent baffles and the inner wall of the atomization hole are combined to form a spray hole, and the liquid outlet pipe and the spray hole are both connected to the channel.

[0008] In some optional embodiments, one end of the liquid outlet pipe away from the channel shrinks inwardly.

[0009] In some optional embodiments, the baffle is an arc-shaped plate with the same curvature and curvature direction, and the plurality of injection holes are arranged in a spiral shape.

[0010] In some optional embodiments, the spoiler structure includes convex strips extending along the liquid outlet direction, and the convex strips are arranged on the baffle.

[0011] In some optional embodiments, the flow-disturbing structure includes a guide groove, and the guide groove is arranged on the outer wall of the liquid outlet pipe along the liquid outlet direction.

[0012] In some optional embodiments, a threaded groove is provided on the inner wall of the liquid outlet pipe.

[0013] In some optional embodiments, the nozzle body includes a truncated cone nozzle and a sleeve-type connecting tube, in which a passage connected to the gas cylinder is provided, atomization holes are evenly provided along the circumference of the end wall side of the truncated cone nozzle, and atomization holes are also provided on the top surface of the truncated cone nozzle.

[0014] In some optional embodiments, the atomization hole includes a large diameter section and a small diameter section, the large diameter section is arranged close to the through hole, and the rotor core is installed in the large diameter section.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses an atomizing nozzle for a perfluorohexanone fire extinguishing device. On the one hand, a rotating core is provided to subdivide an atomizing hole into a plurality of injection holes, which not only increases the number of diversion holes but also increases the number of water mist nozzles to achieve diversion atomization. At the same time, a disturbing flow structure is provided on the rotating core to divide and disturb the perfluorohexanone fire extinguishing agent entering the injection hole to achieve the purpose of atomization diversion, thereby improving the diversion capacity in a single injection hole and further improving the atomization effect of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the cross-sectional structure of a nozzle provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the nozzle structure of the perfluorohexanone fire extinguishing device provided in the embodiment of the utility model;

[0019] Figure 3 A schematic diagram of a rotating core structure provided by an embodiment of the utility model;

[0020] Figure 4 A top view of the rotating core structure provided by an embodiment of the utility model;

[0021] Description of reference numerals:

[0022] 1- nozzle body, 11- sleeve connection pipe, 12- frustoconical nozzle, 2- channel, 3- atomization hole, 4- rotating core, 41- liquid outlet pipe, 42- baffle, 5- convex strip, 6- guide groove, 7- perfluorohexanone fire extinguishing device. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0027] Embodiment 1:

[0028] like Figure 1 to Figure 2As shown, this embodiment provides an atomizing nozzle for a perfluorohexanone fire extinguishing device 7, comprising a nozzle body 1, the nozzle body 1 is connected to the gas cylinder of the perfluorohexanone fire extinguishing device 7 and has a channel 2 connected to the gas cylinder, and also comprises a plurality of atomizing holes 3, each of which is connected to the channel 2, and the plurality of atomizing holes 3 are distributed circumferentially along the end wall of the nozzle body 1, and a rotating core 4 for dividing the atomizing hole 3 into a plurality of injection holes is installed in each atomizing hole 3, and a turbulent flow structure is provided on the rotating core 4. The perfluorohexanone fire extinguishing agent transferred from the gas cylinder of the perfluorohexanone fire extinguishing device 7 is turbulently atomized.

[0029] Specifically, Figure 3-Figure 4 As shown, the rotor 4 includes a liquid outlet pipe 41 with a central opening, and a plurality of baffles 42 are evenly arranged along the circumference of the outer wall of the liquid outlet pipe 41. Adjacent baffles 42 and the inner wall of the atomization hole 3 are surrounded to form a spray hole, and the liquid outlet pipe 41 and the spray hole are both connected to the channel 2.

[0030] In order to increase the time that the fire extinguishing agent remains converged after leaving the channel 2, the flow channel of the injection hole is set to rotate in a spiral shape, and the baffle 42 is set to be an arc-shaped plate with the same curvature and curvature direction, so that the injection hole formed by the multiple baffles 42 and the inner wall of the atomization hole 3 is spiral, and the multiple injection holes are arranged in a spiral shape. The injection hole forms a spiral rotation. When working, the liquid that flows out of the nozzle body quickly is affected by the centripetal force of the curved trajectory of the spiral injection hole. When it flows out of the injection hole, it will be ejected along the trajectory direction, forming a certain angle with its axis, and decomposed into small droplets under the action of flow rate and gravity, so as to achieve better atomization of perfluorohexanone, so as to absorb the ambient temperature more quickly and gasify, and fill the surface of the combustion material or the fire suppression material, so as to achieve the effect of rapid cooling and oxygen isolation, thereby realizing rapid fire extinguishing or suppressing the occurrence of fire.

[0031] In order to improve the diffusion effect of the outflowing perfluorohexanone liquid, thereby improving the atomization degree of perfluorohexanone, the end of the liquid outlet pipe 41 away from the channel 2 is designed to shrink inward. For example, the liquid outlet pipe 41 can be set as a tapered tube, in which the end with a smaller diameter is set away from the channel 2. The atomization hole 3 is divided into a large diameter section and a small diameter section to form a step-shaped through hole. The large diameter section is set close to the through hole, and the rotating core 4 is installed in the large diameter section. The installation can be a snap-on connection, and the small diameter section can also be set as a structure (truncated cone type) that shrinks inward away from the end of the channel 2. The liquid sprayed out from the rotating core 4 is sprayed after several fierce collisions and mixing in the small diameter section, which can further reduce the droplet particles and improve the atomization effect.

[0032] A turbulent structure for increasing the atomization effect is provided in the injection hole, for example, a convex strip 5 extending along the liquid outlet direction is provided on the baffle 42, a guide groove 6 is provided along the liquid outlet direction on the outer wall of the liquid outlet pipe 41, and a threaded groove is provided on the inner wall of the liquid outlet pipe 41.

[0033] Specifically, the nozzle body 1 includes a truncated cone nozzle 12 and a sleeve-connected pipe 11, wherein the sleeve-connected pipe 11 is provided with a channel 2 connected to the gas cylinder, and atomizing holes 3 are evenly arranged along the circumferential direction of the end wall side of the truncated cone nozzle 12, and atomizing holes 3 are also arranged on the top surface of the truncated cone nozzle 12. A filter screen is arranged at one end of the sleeve-connected pipe 11 near the gas cylinder connection, and the perfluorohexanone sprayed into the channel 2 is filtered to remove its impurities. When connected to the gas cylinder of perfluorohexanone, the outer wall of the sleeve-connected pipe 11 is provided with threads, and is threadedly connected to the perfluorohexanone fire extinguishing device 7.

[0034] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An atomizing nozzle for a perfluorohexanone fire extinguishing device, comprising a nozzle body (1), the nozzle body (1) being connected to a gas cylinder of the perfluorohexanone fire extinguishing device (7) and having a passage (2) communicating with the gas cylinder, characterized in that: It also comprises a plurality of atomizing holes (3), each of which is connected to the channel (2), and the plurality of atomizing holes (3) are distributed circumferentially along the end wall of the nozzle body (1), and a rotating core (4) for dividing the atomizing hole (3) into a plurality of injection holes is installed in each atomizing hole (3), and a flow disturbance structure is provided on the rotating core (4); The rotating core (4) comprises a liquid outlet pipe (41) with a central opening, a plurality of baffles (42) are evenly arranged along the circumference of the outer wall of the liquid outlet pipe (41), adjacent baffles (42) and the inner wall of the atomization hole (3) are combined to form a spray hole, the liquid outlet pipe (41) and the spray hole are both connected to the channel (2), the baffle (42) is an arc-shaped plate with the same curvature and curvature direction, and the plurality of spray holes are arranged in a spiral shape.

2. A perfluorohexanone fire extinguishing device atomizing nozzle according to claim 1, characterized in that: One end of the liquid outlet pipe (41) away from the channel (2) contracts inwardly.

3. A perfluorohexanone fire extinguishing device atomizing nozzle according to claim 1, characterized in that: The flow-disturbing structure comprises a convex strip (5) extending along the liquid outlet direction, and the convex strip (5) is arranged on the baffle plate (42).

4. A perfluorohexanone fire extinguishing device atomizing nozzle according to claim 1, characterized in that: The flow-disturbing structure comprises a guide groove (6), and the guide groove (6) is arranged on the outer wall of the liquid outlet pipe (41) along the liquid outlet direction.

5. The atomizing nozzle for perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The inner wall of the liquid outlet pipe (41) is provided with a threaded groove.

6. The atomizing nozzle for perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The nozzle body (1) comprises a truncated cone-shaped nozzle (12) and a sleeve-connected pipe (11), wherein a passage (2) communicating with a gas cylinder is provided in the sleeve-connected pipe (11), and atomization holes (3) are evenly provided along the circumferential direction of the side surface of the end wall of the truncated cone-shaped nozzle (12).

7. The atomizing nozzle for perfluorohexanone fire extinguishing device according to claim 1, characterized in that: The atomization hole (3) comprises a large diameter section and a small diameter section, the large diameter section is arranged close to the through hole, and the rotor core (4) is installed in the large diameter section.

Images