CN212854413U - Special atomizer of fire extinguisher - Google Patents

Abstract

An atomizing nozzle special for a fire extinguisher belongs to the technical field of fire-fighting equipment. Set up the medicament pipeline of intercommunication in the connecting pipe, medicament converging cavity one, the medicament converging cavity two that sets gradually the intercommunication in the atomizing spray tube, toper atomizing pipeline, straight section of thick bamboo sprays the direction pipeline, medicament converging cavity two bottoms set up the atomizing core recess, atomizing core recess bottom sets up the atomizing through-hole, it sets up rotatable atomizing core to correspond in the atomizing core recess, atomizing core outer wall correspondence sets up the helicla flute, the connecting pipe, atomizing spray tube spiro union cooperation back medicament converging cavity one, two bodies in medicament converging cavity constitute atomizing converging cavity, atomizing converging cavity is through atomizing through-hole intercommunication toper atomizing pipeline, straight section of thick bamboo sprays the direction pipeline. The special atomizing nozzle for the fire extinguisher and the use method and the use thereof can ensure gas-liquid two-phase injection during fire extinguishing, ensure the injection in a columnar form in a fire extinguishing area, and realize the maximum use and the quick and efficient fire extinguishing effect of the perfluorohexanone medicament or the 2-bromotrifluoropropene.

Description

Special atomizer of fire extinguisher

Technical Field

The utility model belongs to the technical field of fire-fighting equipment, specifically be a special atomizer of fire extinguisher.

Background

The traditional fire extinguisher nozzle mainly has three structures of an inclined nozzle, a direct current atomizing nozzle and a water-based fire extinguishing nozzle. 1. The slope spray head is small-hole slope diffusion, only satisfies the condition that dry powder is quickly suspended and diffused in air, and quickly forms dry powder extinguishing concentration in an extinguishing area, but only satisfies the dry powder fire extinguisher, and cannot satisfy the using conditions of water-based foam, perfluorohexanone and clean gas fire extinguishers. 2. The direct current atomizer has a straight-through design in the internal structure, so that the fire extinguishing agent is atomized by high pressure, and compared with an atomization type atomizer, the direct current atomizer has a good atomization effect under the condition of low pressure without rotating the atomization atomizer; the direct current atomizing nozzle uses small hole atomization, the atomization can be realized only by pressure and small holes in a certain proportion, and the saturated vapor pressure of the atomizing nozzle is higher under the atomizing condition, such as the boiling point of hexafluoropropane is-4 ℃; if only the small holes are formed, the atomization requirement cannot be met when the spray is sprayed at a lower pressure, a water flow straight column can be formed, and the boiling point of the perfluorohexanone is 49 ℃, so that the requirement cannot be met. 3. The water-based fire extinguisher nozzle sprays the fire extinguishing agent through the rotary atomizing nozzle by utilizing high-pressure driving gas, so that a liquid film generated by the fire extinguishing agent is crushed by air and atomized, and the used atomizing nozzle only emphasizes atomization and diffusion, because the working principle of the water-based fire extinguisher is that a layer of compact foam is formed on the surface of a fire, and the mode of foam coverage is used for isolating oxygen to realize fire extinguishing; therefore, the water-based fire extinguishing nozzle cannot meet the requirement that the fire extinguishing concentration of the agent can be kept in a certain time and a certain space, and therefore, the water-based fire extinguishing nozzle cannot be applied to a perfluorohexanone fire extinguisher. Fire extinguishers in which the agent is liquid at normal temperature, such as perfluorohexanone fire extinguishers and 2-bromotrifluoropropene fire extinguishers, have a breakage fire extinguishment of 60% during fire extinguishment, and 40% achieve a fire extinguishment effect by heat absorption.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the utility model aims to design provides a technical scheme of special atomizer of fire extinguisher, at first with the rotatory atomizing of medicament, then set gradually toper atomizing pipeline, straight section of thick bamboo in atomizing spray tube front end and sprayed the direction pipeline, can guarantee the double-phase injection of gas-liquid when putting out a fire to guarantee to spray in the region of putting out a fire with the column form, realize the maximize use and the high efficiency's of perfluor hexanone medicament or 2-bromine trifluoropropene fire extinguishing effect.

The utility model provides a special atomizer of fire extinguisher, a serial communication port includes the connecting pipe, the atomizing spray tube, set up the medicament pipeline of intercommunication in the connecting pipe, medicament converging chamber one, the medicament converging chamber two that sets gradually the intercommunication in the atomizing spray tube, toper atomizing pipeline, straight section of thick bamboo sprays the direction pipeline, medicament converging chamber two bottoms set up at least one atomizing core recess, atomizing core recess bottom sets up the atomizing through-hole, it sets up rotatable atomizing core to correspond in the atomizing core recess, atomizing core outer wall corresponds and sets up an at least helicla flute, the connecting pipe, atomizing spray tube spiro union cooperation back medicament converging chamber one, two combinations in medicament converging chamber constitute atomizing converging chamber, atomizing converging chamber is through atomizing through-hole intercommunication toper atomizing pipeline, straight section of thick bamboo sprays the direction pipeline.

The special atomizing nozzle for the fire extinguisher is characterized in that a group of anti-falling joints are arranged on the outer wall of a connecting pipe corresponding to a medicament conveying pipeline, and the connecting pipe is matched and connected with a medicament outlet of the fire extinguisher through the anti-falling joints.

The special atomizing nozzle for the fire extinguisher is characterized in that the first medicament converging cavity is composed of a transition circular table cavity and a main cylindrical cavity, and the upper table surface of the transition circular table cavity is communicated with a medicament conveying pipeline.

The special atomizing nozzle for the fire extinguisher is characterized in that one, two, three, four or five atomizing core grooves are formed in the bottom of the second medicament converging cavity, and two, three or four spiral grooves are uniformly formed in the outer wall of the atomizing core; the atomizing core groove consists of a groove cylindrical cavity and a groove circular truncated cone cavity, and an atomizing through hole is formed in the center of the bottom of the groove circular truncated cone cavity; the atomizing core corresponds the setting in recess cylinder intracavity, and atomizing core major structure is similar cylinder structure, and the helicla flute that the outside setting in atomizing core side extends to atomizing core about terminal surface respectively constitutes breach, medicament drainage breach down in the medicament drainage.

The special atomizing nozzle for the fire extinguisher is characterized in that the conical atomizing pipeline is a circular truncated cone-shaped cavity, the taper of the conical atomizing pipeline is 15-35 degrees, the optimum taper is-20 degrees, and the length of the conical atomizing pipeline is 25-43 mm.

The special atomizing nozzle for the fire extinguisher is characterized in that the straight cylinder injection guide pipeline is a cylindrical cavity, and the length of the straight cylinder injection guide pipeline is 15-30 mm.

The special atomizing nozzle for the fire extinguisher is characterized in that the connecting pipe is provided with an external thread, the atomizing spray pipe is correspondingly provided with an internal thread, and the connecting pipe and the atomizing spray pipe are connected through the external thread and the internal thread.

The special atomizing nozzle for the fire extinguisher is applied to a perfluorohexanone fire extinguisher and a bromotrifluoropropene fire extinguisher.

The special atomizing nozzle for the fire extinguisher combines the advantages and the characteristics of the rotary atomizing nozzle, the direct-current atomizing nozzle and the inclination nozzle; the rotatable atomizing core and the atomizing through holes can quickly atomize the liquid fire extinguishing agent, ensure that the diameter of atomized particles meets the fire extinguishing requirement, facilitate quick fire extinguishing in short-distance application and simultaneously avoid splashing of a liquid protected object; the taper diffusion of the tapered atomizing pipeline ensures the atomizing effect; the straight cylinder structure of the front straight cylinder injection guide pipeline determines the injection guide. The special atomizing nozzle is particularly suitable for being applied to a perfluorohexanone fire extinguisher or a 2-bromotrifluoropropene fire extinguisher.

Drawings

Fig. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a schematic perspective view of the connecting tube of the present invention;

FIG. 3 is a schematic cross-sectional view of the connecting tube of the present invention;

fig. 4 is a schematic perspective view of an atomizing nozzle according to a first embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of an atomizing nozzle according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of two end faces of a chemical converging cavity of an atomizing nozzle according to a first embodiment of the present invention;

fig. 7 is a schematic perspective view of the atomizing core of the present invention;

fig. 8 is a schematic side view of the atomizing core of the present invention;

fig. 9 is a schematic top view of the atomizing core of the present invention;

fig. 10 is a schematic perspective view of an atomizing nozzle according to a second embodiment of the present invention;

fig. 11 is a schematic sectional view of an atomizing nozzle according to a second embodiment of the present invention;

fig. 12 is a schematic perspective view of an atomizing nozzle according to a third embodiment of the present invention;

fig. 13 is a schematic sectional view of an atomizing nozzle according to a third embodiment of the present invention;

fig. 14 is a schematic perspective view of an atomizing nozzle according to a fourth embodiment of the present invention;

fig. 15 is a schematic sectional view of an atomizing nozzle according to a fourth embodiment of the present invention;

fig. 16 is a schematic perspective view of an atomizing nozzle according to a fifth embodiment of the present invention;

fig. 17 is a schematic sectional view of an atomizing nozzle according to a fifth embodiment of the present invention;

in the figure: 1-connecting pipe, 101-medicament conveying pipeline, 102-anti-drop joint, 103-medicament converging cavity I, 103 a-transition circular table cavity, 103 b-main body cylindrical cavity and 104-external thread; 2-atomizing spray pipe, 201-medicament converging cavity II, 202-internal thread, 203-atomizing core groove, 203 a-groove cylindrical cavity, 203 b-groove circular platform cavity, 204-conical atomizing pipeline, 205-straight cylinder injection guide pipeline and 206-atomizing through hole; 3-atomizing core, 301-spiral groove, 302-medicament drainage upper gap and 303-medicament drainage lower gap.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in the figure, this special atomizer of fire extinguisher, including connecting pipe 1, atomizing spray tube 2, set up the medicament pipeline 101 of intercommunication in the connecting pipe 1, medicament conflux chamber one 103, medicament conflux chamber two 201 that sets gradually the intercommunication in the atomizing spray tube 2, toper atomizing pipeline 204, straight section of thick bamboo sprays guide way 205, medicament conflux chamber two 201 bottoms set up at least one atomizing core recess 203, atomizing core recess 203 bottom sets up atomizing through-hole 206, it sets up rotatable atomizing core 3 to correspond in the atomizing core recess 203, the correspondence of 3 outer walls of atomizing core sets up at least one helicla flute 301, connecting pipe 1, medicament conflux chamber one 103 behind the 2 spiro union cooperations of atomizing spray tube, two 201 combined constitutions in medicament conflux chambers atomize and converge the chamber, atomizing conflux chamber passes through atomizing through-hole 206 intercommunication toper atomizing pipeline 204, straight section of thick bamboo sprays guide way 205. The rotatable atomizing core 3 and the atomizing through hole 206 of the utility model can atomize the liquid fire extinguishing agent quickly, ensure that the diameter of the atomized particles meets the fire extinguishing requirement, facilitate quick fire extinguishing in short-distance application, and simultaneously do not cause the splashing of liquid protection objects; the taper diffusion of the tapered atomizing pipe 204 ensures the atomizing effect; the straight-tube structure of the front straight-tube jet guide duct 205 determines the jet guide.

Further, the outer wall of the connecting pipe 1 corresponding to the medicament conveying pipeline 101 is provided with a group of anti-falling joints 102, and the connecting pipe 1 is connected with a medicament outlet of the fire extinguisher in a matched mode through the anti-falling joints 102, so that the connection is convenient.

Further, the first medicament converging cavity 103 is composed of a transition circular platform cavity 103a and a main body cylindrical cavity 103b, and the upper table surface of the transition circular platform cavity 103a is communicated with the medicament conveying pipeline 101; the first medicament diffusion is realized, and the impact of the first atomized particles is carried out.

The number of the atomizing cores 3 and the corresponding atomizing core grooves 203 can be adjusted according to specific engineering requirements, one, two, three, four or five atomizing core grooves 203 are formed in the bottom of the second medicament converging cavity 201, and two, three or four spiral grooves 301 are uniformly distributed in the outer wall of the atomizing core 3; the atomizing core groove 203 consists of a groove cylindrical cavity 203a and a groove circular platform cavity 203b, and an atomizing through hole 206 is arranged at the center of the bottom of the groove circular platform cavity 203 b; atomizing core 3 corresponds the setting in recess cylinder chamber 203a, and atomizing core 3 major structure is similar cylinder structure, and the outside helicla flute 301 that sets up in atomizing core 3 side extends to atomizing core 3 up-and-down terminal surface respectively and constitutes breach 302, medicament drainage lower gap 303 under the medicament drainage. Fig. 4-6 are the structure diagram of the atomizing nozzle of the first embodiment of the present invention, which is provided with three atomizing cores 3 and three atomizing core grooves 203, wherein the three atomizing core grooves 203 are annularly and uniformly distributed. Fig. 10-11 are structural diagrams of an atomizing nozzle according to a second embodiment of the present invention, in which an atomizing core 3 and an atomizing core groove 203 are disposed, and the atomizing core groove 203 is disposed at a central position of a bottom of the second chemical converging cavity 201. Fig. 12-13 are the structure diagrams of the atomizing nozzle according to the third embodiment of the present invention, in which two atomizing cores 3 and two atomizing core grooves 203 are disposed, and the atomizing core grooves 203 are disposed side by side at the bottom of the second chemical converging cavity 201. Fig. 14-15 are the structure diagram of the atomizing nozzle according to the fourth embodiment of the present invention, which includes four atomizing cores 3 and four atomizing core grooves 203, wherein the atomizing core grooves 203 are disposed in two rows and arranged side by side at the bottom of the second chemical converging cavity 201. Fig. 16-17 are the fifth atomizing nozzle structure diagram of the embodiment of the present invention, which comprises five atomizing cores 3 and five atomizing core grooves 203, wherein an atomizing core groove 203 is disposed at the center of the bottom of the second medicament converging cavity 201, and the other four atomizing core grooves 203 are uniformly distributed around the circumference.

Further, the conical atomization pipeline 204 is a truncated cone-shaped cavity, the taper of the conical atomization pipeline is 15-35 degrees, preferably 20-25 degrees, the length of the conical atomization pipeline 204 is 25-43mm, and the conical diffusion of the conical atomization pipeline 204 ensures the atomization effect. Further, the straight-cylinder jet guide pipeline 205 is a cylindrical cavity, the length of the straight-cylinder jet guide pipeline is 15-30mm, jet guide is determined, gas-liquid two-phase jet can be guaranteed during fire extinguishing, and the straight-cylinder jet guide pipeline can be guaranteed to be jetted in a columnar mode in a fire extinguishing area. The toper pipeline 204 and the straight section of thick bamboo spray guide pipe 205 combine, and the medicament diffuses at toper pipeline 204, and through straight section of thick bamboo spray guide pipe 205 time, the medicament contracts, realizes the striking between the atomizing granule, increases atomization effect.

Further, set up external screw thread 104 on the connecting pipe 1, correspond on the atomizing spray tube 2 and set up internal thread 202, connecting pipe 1, atomizing spray tube 2 pass through external screw thread 104, internal thread 202 threaded connection, installation convenient to use.

The using method of the special atomizing nozzle for the fire extinguisher comprises the following steps:

1) selecting proper perfluorohexanone fire extinguisher and 2-bromotrifluoropropene fire extinguisher, wherein the pressure of the fire extinguisher is 0.8-1.6MPa, preferably 1.2-1.4 MPa, and the optimal particle size of the fog drops of the fire extinguisher is achieved under the action of air power; one end of the connecting pipe 1 is matched and connected with a medicament outlet of the fire extinguisher;

2) turning on a switch of the fire extinguisher, and the injection time is as follows: more than or equal to 13S.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a special atomizer of fire extinguisher, a serial communication port, atomizing spray tube (2), set up medicament conveying pipe (101) of intercommunication in connecting pipe (1), medicament converging chamber one (103), medicament converging chamber two (201) that set gradually the intercommunication in atomizing spray tube (2), toper atomizing pipeline (204), straight section of thick bamboo sprays guide pipeline (205), medicament converging chamber two (201) bottom sets up at least one atomizing core recess (203), atomizing core recess (203) bottom sets up atomizing through-hole (206), it sets up rotatable atomizing core (3) to correspond in atomizing core recess (203), atomizing core (3) outer wall corresponds and sets up at least one helicla flute (301), connecting pipe (1), atomizing spray tube (2) spiro union back medicament converging chamber one (103), medicament converging chamber two (201) are combined and constitute atomizing converging chamber, atomizing converging chamber communicates toper atomizing pipeline (204) through atomizing through-hole (206), The straight-barrel injection guide pipeline (205).

2. The special atomizing nozzle for the fire extinguisher as claimed in claim 1, wherein the anti-drop joint (102) is provided on the outer wall of the connecting pipe (1) corresponding to the chemical delivery pipe (101), and the connecting pipe (1) is connected with the chemical outlet of the fire extinguisher in a matching way through the anti-drop joint (102).

3. The special atomizing nozzle for fire extinguishers as claimed in claim 1, wherein the first chemical converging chamber (103) is composed of a transition circular platform chamber (103 a) and a main cylindrical chamber (103 b), and the upper surface of the transition circular platform chamber (103 a) is communicated with the chemical delivery pipeline (101).

4. The special atomizing nozzle for the fire extinguisher according to claim 1, wherein the bottom of the second chemical converging cavity (201) is provided with one, two, three, four or five atomizing core grooves (203), and the outer wall of the atomizing core (3) is uniformly provided with two, three or four spiral grooves (301); the atomizing core groove (203) is composed of a groove cylindrical cavity (203 a) and a groove circular platform cavity (203 b), and an atomizing through hole (206) is formed in the center of the bottom of the groove circular platform cavity (203 b); atomizing core (3) correspond to set up in recess cylinder chamber (203 a), and atomizing core (3) major structure is similar cylinder structure, and the helicla flute (301) that atomizing core (3) side outside set up extend to respectively atomizing core (3) up-and-down terminal surface and constitute breach (302) on the medicament drainage, medicament drainage breach (303).

5. An atomising nozzle as claimed in claim 1, characterised in that the tapered atomising conduit (204) is a frusto-conical cavity with a taper of 15-35 °, preferably 20-25 °, and the length of the tapered atomising conduit (204) is 25-43 mm.

6. The atomizing nozzle for fire extinguisher according to claim 1, characterized in that the straight jet guiding pipe (205) is a cylindrical cavity with a length of 15-30 mm.

7. The special atomizing nozzle for fire extinguishers as claimed in claim 1, wherein the connecting pipe (1) is provided with an external thread (104), the atomizing nozzle (2) is correspondingly provided with an internal thread (202), and the connecting pipe (1) and the atomizing nozzle (2) are in threaded connection through the external thread (104) and the internal thread (202).

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