阅读说明：本技术 一种外贮压式全氟己酮分流喷头 (External pressure storage type perfluorohexanone flow dividing spray head ) 是由 石峥嵘 雷杰 谭石荣 胡志炯 周均伟 彭灿 谷建忠 王江林 郑晓东 黄辉 夏其溢 于 2019-08-30 设计创作，主要内容包括：本发明公开了一种外贮压式全氟己酮分流喷头,包括喷头本体、导流套及分流管,所述喷头本体内设有药剂通道和动力气体通道,所述导流套一端与所述喷头本体相连,另一端的内壁设有凸部,所述分流管与所述药剂通道连通且周向设有多个分流孔,分流管延伸至所述导流套外并设有遮挡部,所述凸部与所述遮挡部之间形成药剂细化通道。本发明具有结构简单、有利于提高雾化性能和气化速度等优点。(The invention discloses an external pressure storage type perfluorohexanone flow dividing nozzle which comprises a nozzle body, a flow guide sleeve and a flow dividing pipe, wherein a medicament channel and a power gas channel are arranged in the nozzle body, one end of the flow guide sleeve is connected with the nozzle body, the inner wall of the other end of the flow guide sleeve is provided with a convex part, the flow dividing pipe is communicated with the medicament channel and is circumferentially provided with a plurality of flow dividing holes, the flow dividing pipe extends out of the flow guide sleeve and is provided with a shielding part, and a medicament thinning channel is formed between the convex part and the shielding part. The invention has the advantages of simple structure, being beneficial to improving the atomization performance and the gasification speed, and the like.)

1. An external pressure storage type perfluorohexanone shunt nozzle is characterized in that: including shower nozzle body (1), water conservancy diversion cover (2) and shunt tubes (3), be equipped with medicament passageway (11) and power gas passageway (12) in shower nozzle body (1), water conservancy diversion cover (2) one end with shower nozzle body (1) links to each other, and the inner wall of the other end is equipped with convex part (21), shunt tubes (3) with medicament passageway (11) intercommunication and circumference are equipped with a plurality of flow distribution holes (31), and shunt tubes (3) extend to water conservancy diversion cover (2) are outer and be equipped with occlusion part (32), convex part (21) with it refines passageway (4) to form the medicament between occlusion part (32).

2. The externally stored pressure perfluorohexanone manifold according to claim 1, wherein: the convex part (21) comprises a first inclined surface (211) close to one side of the spray head body (1), a second inclined surface (212) close to one side of the shielding part (32) and a first arc surface (213) used for connecting the first inclined surface (211) and the second inclined surface (212), the shielding part (32) comprises a third inclined surface (321) close to one side of the convex part (21), and the medicament thinning channel (4) is located between the second inclined surface (212) and the third inclined surface (321) and gradually reduces the width of the medicament thinning channel (4) along the flowing direction of the medicament.

3. The externally stored pressure perfluorohexanone manifold according to claim 2, wherein: a plurality of grooves (214) are uniformly formed in the second inclined surface (212) and/or the third inclined surface (321) along the circumferential direction.

4. The external pressure storage type perfluorohexanone flow-splitting nozzle according to claim 2 or 3, wherein: a second cambered surface (322) is arranged between the third inclined surface (321) and the shunt pipe (3).

5. The external pressure storage type perfluorohexanone shunt nozzle according to any one of claims 1 to 3, wherein: the spray head body (1) and the shunt pipe (3) are coaxially arranged.

6. The external pressure storage type perfluorohexanone shunt nozzle according to any one of claims 1 to 3, wherein: the flow guide sleeve (2) is in threaded connection with the spray head body (1), and the flow dividing pipe (3) is in threaded connection with the spray head body (1).

Technical Field

The invention relates to the technical field of fire-fighting equipment, in particular to an external pressure storage type perfluorohexanone flow-dividing spray head.

Background

Perfluorohexanone is a novel environment-friendly clean fire extinguishing agent, but has poor atomization performance and gasification speed during spraying, and the poor atomization performance and gasification speed can influence the fire extinguishing effect and speed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the external pressure storage type perfluorohexanone flow dividing nozzle which is simple in structure and beneficial to improving the atomization performance and the gasification speed.

In order to solve the technical problems, the invention adopts the following technical scheme:

The utility model provides an outer pressure storage formula perfluor hexanone reposition of redundant personnel shower nozzle, includes shower nozzle body, water conservancy diversion cover and shunt tubes, this internal medicament passageway and the power gas passageway of being equipped with of shower nozzle, water conservancy diversion cover one end with the shower nozzle body links to each other, and the inner wall of the other end is equipped with the convex part, the shunt tubes with medicament passageway intercommunication and circumference are equipped with a plurality of flow distribution holes, and the shunt tubes extends to the outer shelter portion that is equipped with of water conservancy diversion cover, the convex part with it refines the passageway to form the medicament between the shelter.

as a further improvement of the above technical solution: the convex part is including being close to the first inclined plane of shower nozzle body one side, being close to the second inclined plane of occlusion part one side and be used for connecting the first cambered surface on first inclined plane and second inclined plane, the occlusion part is including being close to the third inclined plane of convex part one side, the medicament refines the passageway and is located the second inclined plane with between the third inclined plane, and along the width that the flow direction medicament of medicament refined the passageway reduces gradually.

As a further improvement of the above technical solution: and a plurality of grooves are uniformly formed in the second inclined plane along the circumferential direction.

As a further improvement of the above technical solution: and a second cambered surface is arranged between the third inclined surface and the flow dividing pipe.

As a further improvement of the above technical solution: the spray head body and the shunt pipe are coaxially arranged.

As a further improvement of the above technical solution: the flow guide sleeve is in threaded connection with the spray head body, and the flow dividing pipe is in threaded connection with the spray head body.

Compared with the prior art, the invention has the advantages that: the invention discloses an external pressure storage type perfluorohexanone shunt nozzle, which is characterized in that a medicament and power gas are separately conveyed, the thrust of a power source is more sufficient, and the external pressure storage type perfluorohexanone shunt nozzle is beneficial to realizing faster gasification and more sufficient atomization.

Drawings

FIG. 1 is a schematic perspective view of an external pressure storage type perfluorohexanone flow-dividing nozzle according to the present invention.

FIG. 2 is a schematic cross-sectional view of an external pressure storage type perfluorohexanone flow-dividing nozzle according to the present invention.

Fig. 3 is a schematic perspective view of the flow guide sleeve of the present invention.

Fig. 4 is a schematic view of a shunt according to the present invention.

The reference numerals in the figures denote: 1. a nozzle body; 11. a medicament channel; 12. a motive gas channel; 2. a flow guide sleeve; 21. a convex portion; 211. a first inclined plane; 212. a second inclined plane; 213. a first arc surface; 214. a groove; 3. a shunt tube; 31. a shunt hole; 32. a shielding portion; 321. a third inclined plane; 322. a second arc surface; 4. the medicament refines the channel.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

Fig. 1 to 4 show an embodiment of an external pressure storage type perfluorohexanone shunt nozzle according to the present invention, which includes a nozzle body 1, a flow guide sleeve 2 and a shunt tube 3, wherein the nozzle body 1 is provided with a medicament channel 11 and a motive gas channel 12, one end of the flow guide sleeve 2 is connected to the nozzle body 1, the inner wall of the other end of the flow guide sleeve 2 is provided with a protrusion 21, the shunt tube 3 is communicated with the medicament channel 11 and is uniformly provided with a plurality of shunt holes 31 in the circumferential direction, the shunt tube 3 extends to the outside of the flow guide sleeve 2 and is provided with a shielding portion 32, and a medicament thinning channel 4 is formed between the protrusion 21 and the shielding portion 32.

The external pressure storage type perfluorohexanone shunt nozzle has the advantages that the medicament and the power gas are separately conveyed, the thrust of the power source is more sufficient, the rapid gasification and the sufficient atomization are favorably realized, and during the operation, the medicament enters the shunt tube 3 from the medicament channel 11, is scattered and sprayed out from each shunt hole 31 on the shunt tube 3 to impact on the convex part 21, forms small fire extinguishing medicament particles for the first time, meanwhile, after the high-pressure power gas enters from the power gas channel 12, the high-pressure power gas is clustered and accelerated by the gap between the convex part 21 and the shunt pipe 3, so that small particles are pushed to impact the shielding part 32 for the second time to form fine particles, then the medicament enters the narrow medicament thinning channel 4 between the shielding part 32 and the convex part 21, and is folded back and impacted on the shielding part 32 and the convex part 21 for multiple times to form fine particles, so that the atomization performance and the gasification speed of the medicament are improved, and finally the medicament is driven by high-pressure power gas to be sprayed to a protection area at a high speed.

Further, in the present embodiment, the protruding portion 21 includes a first inclined surface 211 near one side of the ejection head body 1, a second inclined surface 212 near one side of the shielding portion 32, and a first arc surface 213 for connecting the first inclined surface 211 and the second inclined surface 212, the shielding portion 32 includes a third inclined surface 321 near one side of the protruding portion 21, and the medicine thinning channel 4 is located between the second inclined surface 212 and the third inclined surface 321, and the width of the medicine thinning channel 4 is gradually reduced along the flow direction of the medicine (i.e., the gap between the second inclined surface 212 and the third inclined surface 321 is gradually reduced along the radial direction). The first inclined plane 211 is beneficial to clustering and accelerating the motive gas ejected from the motive gas channel 12, the first cambered surface 213 is beneficial to guiding the motive gas to smoothly enter the medicament refining channel 4 and to powerfully impact the shielding part 32, the third inclined plane 321 on one side of the shielding part 32 close to the convex part 21 can be matched with the second inclined plane 212 on the convex part 21 to form a narrow space, and fine particles can reach ideal fine particles after being turned back and impacted for multiple times.

Furthermore, in the present embodiment, the second inclined surface 212 is uniformly provided with a plurality of grooves 214 along the circumferential direction. Compared with a smooth surface, the concave-convex surface with the groove 214 is beneficial to achieving ideal fine particles through medicament impact. Of course, in other embodiments, the groove 214 may be provided on the third slope 321, or the groove 214 may be provided on both the second slope 212 and the third slope 321.

Furthermore, in the present embodiment, a second arc surface 322 is disposed between the third inclined surface 321 and the shunt tube 3. Compared with the direct impact on the third inclined surface 321, the second arc surface 322 is adopted, so that the small particles subjected to the first impact can impact on the shielding part 32 for the second time under the pushing of the power gas to form fine particles.

As a preferred technical scheme, in this embodiment, the nozzle body 1 and the shunt tube 3 are coaxially arranged, which is beneficial to uniformly diffusing each item of the medicament to the space inside the flow guide sleeve 2, and simultaneously, the overall structure of the nozzle is more compact and occupies less space.

As preferred technical scheme, in this embodiment, water conservancy diversion cover 2 and 1 threaded connection of shower nozzle body, shunt tubes 3 and 1 threaded connection of shower nozzle body, good reliability, easy dismounting and easy to maintain.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.