KR102532855B1 - Fire Fighting Nozzle having convection generating structure - Google Patents

Abstract

The present invention is a fire nozzle having a passage portion 11 through which water moves, and a vortex generating structure 20 having a smaller diameter than the diameter of the passage portion 11 is disposed inside the passage portion 11, wherein the The vortex generating structure 20 includes a hollow body portion 100 in which an inlet 110 is open and a body has a mesh structure; A vortex generating unit 200 protruding and spaced apart from the outer surface of the body unit 100; and a cover portion 300 coupled to the end of the outlet 120 of the body portion 100 to close the outlet.

Description

Fire Fighting Nozzle having convection generating structure}

The present invention relates to a fire nozzle. Specifically, it relates to a fire nozzle equipped with a vortex generating structure.

In general, a Class A fire refers to a fire in which ashes remain after burning general combustibles such as wood, fiber, paper, rubber, and plastics. The designation is "general fire".

A Class B fire refers to a fire in which flammable liquids, combustible liquids, petroleum, grease, tar, oil, oil paints, solvents, lacquers, alcohol, and flammable gases do not burn and do not leave ashes. The name is “oil fire”.

Existing fire hydrants used only water and were adaptable only to general fires (Class A). Therefore, when an oil fire (Class B) occurs, the existing indoor/outdoor fire hydrant has no fire adaptability, so the effectiveness is somewhat lowered. Po fire hydrant fire extinguishing facilities are limited to specific firefighting objects, and are not considered for general firefighting objects.

Accordingly, the present applicant has increased interest in firefighting nozzles that have fire adaptability in the initial oil fire (Class B), prevent fire spread, and are capable of early suppression and delay only by charging fire extinguishing agents.

In this case, a method of mixing a solid chemical suitable for responding to an oil fire with fire-fighting water through a fire-fighting nozzle may be proposed. However, even if the solid chemical is injected into the nozzle, a problem has been raised as to how to properly dissolve it in the fire fighting water.

For example, if the solid chemical is sprayed without being dissolved in fire-fighting water inside the fire-fighting nozzle, it will not be effective in extinguishing an oil fire. If the solid chemical is dissolved too quickly in the fire-fighting nozzle, a high-concentration solid chemical is mixed with the initially sprayed fire-fighting water and sprayed, and the fire-fighting water sprayed thereafter will not contain the solid agent.

Accordingly, the present invention intends to propose a technique for quickly dissolving the solid agent loaded into the fire nozzle and uniformly dissolving it for a certain period of time.

(Document 1) Korea Patent Registration No. 10-1869853 (2018.06.15)

The fire nozzle provided with the vortex generating structure according to the present invention has the following problems.

First, the solid chemical loaded into the fire nozzle is quickly dissolved.

Second, the solid chemical loaded into the fire nozzle is uniformly dissolved over a certain period of time.

Third, the solid medicine is charged without a separate configuration such as a solid medicine storage space or a mixer.

The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The present invention is a firefighting nozzle having a passage through which water moves, wherein a vortex generating structure having a smaller diameter than the diameter of the passage is disposed inside the passage, the inlet of the vortex generating structure is open, and the body has a mesh structure. a hollow body portion; a vortex generator protruding and spaced apart from the outer surface of the body; and a cover portion coupled to the outlet end of the body portion to close the outlet.

In the present invention, the vortex generating structure may be disposed spaced apart from the inner surface of the passage portion.

In the present invention, the body portion a plurality of transverse support provided in the longitudinal direction of the body portion; And a plurality of circular supports provided in a circular shape, disposed in the longitudinal direction, and coupled to at least one side of the inner or outer side of the transverse support, wherein a mesh structure is formed in the space between the transverse support and the circular support It can be.

In the present invention, the vortex generating portion may protrude in an oblique direction along the surface of the body portion on at least one side of the inside or outside of the body portion.

In the present invention, the vortex generating unit may be provided in a continuous structure.

In the present invention, the vortex generating unit may be provided in a discontinuous structure.

In the present invention, a protrusion may be provided on an outer surface of the cover part.

In the present invention, the protruding portion may be provided in plurality, and may have a discharge portion provided in a space between each protruding portion.

In the present invention, the passage portion includes a blocking portion having an outlet, and the protruding portion may be provided with a gap portion that is a space between the discharge portion and the blocking portion while being in contact with the blocking portion.

In the present invention, the firefighting water may flow through the gap portion, move to the discharge portion, and then flow out through the outlet.

The fire nozzle provided with the vortex generating structure according to the present invention has the following effects.

First, by generating a vortex, there is an effect of quickly dissolving the loaded solid medicine.

Second, by closing the end of the vortex generating structure, there is an effect that the solid medicine loaded inside the vortex generating structure is not discharged in an undissolved state.

Third, by closing the end of the vortex generating structure, there is an effect of substantially uniformly dissolving the solid medicine loaded into the vortex generating structure over a certain period of time.

Fourth, by adopting a structure for manually loading the solid medicine, there is an effect of not having to have a separate configuration such as a solid medicine storage space or a mixer.

Fifth, as the mixed water of water and the solid chemical is discharged through the gap formed between the cover part of the vortex generating structure and the outlet of the fire nozzle passage part, there is an effect of mixing again.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a schematic view of a firefighting nozzle according to the present invention, showing that a vortex generating structure according to the present invention is disposed inside the firefighting nozzle.
2A is a perspective view of one vortex generating structure according to the present invention, and FIG. 2B is a front cross-sectional view of FIG. 2A.
3A is a front view of one vortex generating structure according to the present invention, and FIG. 3B is a front cross-sectional view of FIG. 3A.
4 is a view showing one vortex generating structure according to the present invention from the inlet side.
5 is a view showing that vortexes are generated by a vortex generating structure disposed inside a passage part.
6 is a view illustrating the moving direction of firefighting water inside and outside the vortex generating structure using a front cross-sectional view of the vortex generating structure according to the present invention.
Figure 7 is a view explaining that the solid drug is injected into the vortex generating structure according to the present invention, and the firefighting water rapidly dissolves the solid drug by the vortex.
8A is a view showing the blocking part and the cover part separately, and FIG. 8B is a view showing that the blocking part and the cover part contact to form the contact part.
9 is a view showing a path through which firefighting water is moved by a blocking part and a cover part.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described so that those skilled in the art can easily practice it. As can be easily understood by those skilled in the art to which the present invention pertains, the embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible, identical or similar parts are indicated using the same reference numerals in the drawings.

The terminology used in this specification is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite.

As used herein, the meaning of "comprising" specifies particular characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, components, and/or components. It does not exclude the presence or addition of groups.

All terms including technical terms and scientific terms used in this specification have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. The terms defined in the dictionary are additionally interpreted as having a meaning consistent with the related technical literature and the currently disclosed content, and are not interpreted in an ideal or very formal meaning unless defined.

The present invention relates to a fire-fighting nozzle, and is a technology that enables the charging of a solid aqueous film foam fire extinguishing agent (hereinafter referred to as 'solid agent') to the fire-fighting nozzle. It relates to a fire-fighting nozzle that increases the solubility of solid chemicals due to vortex action when fire-fighting water passes through pipes, enabling initial response to oil fires (Class B).

The present invention does not require a separate storage space for storing the solid medicine or a charging structure for charging the stored solid medicine into the fire nozzle. The present invention is a structure in which the user disassembles the fire nozzle and manually inserts the solid medicine into the vortex generating structure disposed in the disassembled passage part.

Since it is very easy to disassemble the fire nozzle and the actual time required is very small, unnecessary storage space or charging structure is excluded.

Hereinafter, the present invention will be described with reference to the drawings. For reference, in the drawings, some elements may be exaggerated in order to explain the features of the present invention. In this case, it is preferable to interpret in light of the whole purpose of this specification.

1 is a schematic view of a firefighting nozzle according to the present invention, showing that a vortex generating structure according to the present invention is disposed inside the firefighting nozzle. 2A is a perspective view of one vortex generating structure according to the present invention, and FIG. 2B is a front cross-sectional view of FIG. 2A.

The present invention relates to a fire nozzle equipped with a vortex generating structure.

The present invention is a fire nozzle having a passage portion 11 through which water moves, and a vortex generating structure 20 having a smaller diameter than the diameter of the passage portion 11 may be disposed inside the passage portion 11 .

As shown in FIG. 1, a passage 11 through which firefighting water is moved is provided inside the fire nozzle, and a vortex generating structure may be disposed inside the passage.

The vortex generating structure 20 according to the present invention includes a hollow body portion 100 having an open inlet 110 and a body having a mesh structure; A vortex generating unit 200 protruding and spaced apart from the outer surface of the body unit 100; And it may include a cover part 300 coupled to the end of the outlet 120 of the body portion 100 to close the outlet.

The vortex generating structure 20 according to the present invention is disposed inside the passage part 11 and may be spaced apart from the inner surface of the passage part 11 .

A gap is maintained between the outer surface of the vortex generating structure 20 and the inner surface of the passage 11, and a vortex is generated as the firefighting water moves into the gap. Therefore, if the interval is too narrow, vortex generation and movement may be difficult, so it is preferable to secure an appropriate interval space.

The body portion 100 of the vortex generating structure 20 according to the present invention has a structure in which a mesh structure is formed by combining the transverse support 13 and the circular support 140.

Specifically, a plurality of transverse supports 130 provided in the longitudinal direction of the body portion; And provided in a circular shape and disposed in the longitudinal direction, it may include a plurality of circular supports 140 coupled to at least one side of the inner or outer side of the transverse support 130. A mesh structure may be formed in the space between the transverse support 130 and the circular support 140 by this combination.

2A is a perspective view of one vortex generating structure according to the present invention, and FIG. 2B is a front cross-sectional view of FIG. 2A. The embodiment of FIG. 2 shows an embodiment in which the lateral support 130 is provided on the inside and the circular support 140 is coupled to the outside of the lateral support 130 .

As another embodiment, the circular support 140 may be provided on the inside and the lateral support 130 may be coupled to the outside of the circular support 140 .

As another embodiment, the circular support 140 is provided on the inside, the transverse support 130 is coupled on the outside of the circular support 140, and further, the circular support 140 is again on the outside of the transverse support 130 It may be implemented as an embodiment in which is combined. For this embodiment, two types of circular supports with different diameters will be used.

As another embodiment, the transverse support 130 is provided on the inside, the circular support 140 is coupled on the outside of the transverse support 130, and furthermore, the transverse support 130 is again on the outside of the circular support 140 ) may be implemented as an embodiment in which

According to the various embodiments described above, the side surface of the hollow vortex generating structure may have various types of mesh structures.

The vortex generating unit 200 according to the present invention may protrude in an oblique direction from at least one of the inside or outside of the body 100 along the surface of the body.

The embodiments of FIGS. 2 and 3 show an embodiment in which the vortex generating unit 200 is provided on the outside of the body unit 100 .

As another embodiment, the vortex generating unit may be provided inside the body, or may be provided both inside and outside the body.

The vortex generating unit 200 according to the present invention may be provided in a continuous structure or a discontinuous structure.

The embodiment of FIGS. 2A and 3A shows an embodiment in which the vortex generating unit 200 is provided in a discontinuous structure. The discontinuous structure will include a plurality of vortex generators. Each vortex generating unit may be arranged to correspond to the vortex generating direction.

In addition, the vortex generating unit may be provided in a continuous structure. In this case, it may be implemented in a single helix form or a double helix form.

In the present invention, the cover part 300 may be provided with a protrusion 311 on the outer surface 310 . The protrusions 311 according to the present invention may be provided in plurality, and may have a discharge portion 312 provided in a space between each protrusion 311 (see FIGS. 2A and 8).

In the present invention, the passage portion 11 may include a blocking portion 12 in which an outlet 13 is formed. The protruding part 311 may be provided with a spacer 14 that is a space between the protruding part 312 and the blocking part 12 while being in contact with the blocking part 12 .

At this time, the fire-fighting water may pass through the gap part 14, move to the discharge part 321, and then flow out through the outlet 13.

Hereinafter, with reference to FIGS. 5 to 7 , it will be described that vortexes are generated through the vortex generating structure. 5 to 7 is an embodiment in which the vortex generating unit 200 is formed on the outside of the vortex generating structure 20 . In addition, in order to explain the operating principle of vortex generation, it is revealed that it is shown exaggeratedly.

Firefighting water flows into the firefighting nozzle and is also moved to the passage part (11). Inside the passage part 11, a vortex generating structure 20 having a hollow mesh structure is disposed. The inside of the vortex generating structure agent 20 is a state in which the solid medicine is manually charged.

Firefighting water is moved to the space between the outer side of the vortex generating structure 20 and the passage 11, and is also moved to the inside of the vortex generating structure 20. Since the body portion 100 of the vortex generating structure 20 has a mesh structure, firefighting water can mutually move in and out.

The firefighting water moved to the space between the outer side of the vortex generating structure 20 and the passage part 11 is rotated by the vortex generating part 200. Since the externally rotated vortex flows into the vortex generating structure 20 through the mesh structure, the firefighting water also rotates inside the vortex generating structure 20 .

The solid chemical loaded into the vortex generating structure 20 starts to dissolve while coming into contact with the fire fighting water. However, when the firefighting water becomes a vortex flow inside the vortex generating structure 20, the solid medicine will be able to dissolve more quickly.

Meanwhile, the inlet 110 of the vortex generating structure 20 is open, but the outlet 120 side is closed by the cover part 300 . Therefore, the solid medicine loaded inside is prevented from being moved to the outside by the cover part 300, and is prevented from being moved to the outside by the mesh structure body part 100. That is, the solid medicine can be all dissolved by the fire fighting water by this structure, and the undissolved solid lump will be prevented from being discharged.

If the vortex generating unit is provided on the inner surface of the body of the vortex generating structure, the vortex inside the vortex generating structure will be more strongly formed. In this case, the solid medicine will be able to dissolve more quickly.

Therefore, the position, number, height, curvature, etc. of the vortex generating units can be adjusted in consideration of selection factors such as the degree of dissolution of a specific solid medicine or the time to be dissolved. Of course, the water pressure of the supplied firefighting water may also be a factor to consider.

Next, a configuration in which firefighting water passing through the vortex generating structure 20 disposed inside the passage part 11 is discharged from the passage part 11 will be examined.

8A is a view showing the blocking part and the cover part separately, and FIG. 8B is a view showing that the blocking part and the cover part contact to form the contact part. 9 is a view showing a path through which firefighting water is moved by a blocking part and a cover part.

As shown in FIG. 8A , a blocking portion 12 having an outlet 130 may be provided at a discharged portion of the passage 11 . In addition, a protrusion 311 protrudes from the outer surface of the cover portion 300 of the vortex generating structure.

As shown in FIG. 8B , one side of the protruding portion 311 is in contact with the blocking portion 12 and a gap is generated, and the gap is the spacing portion 14 .

After the firefighting water easily dissolves the solid chemical through the eddy current, it continues to move in the direction in which it was moving. Firefighting water flowing inside the vortex generating structure 20 is moved to the outside of the vortex generating structure 20 in a state blocked by the cover 300 (see FIG. 7 ).

The movement of the firefighting water thus moved is blocked by the blocking unit 12 (see FIG. 9). The firefighting water blocked from forward movement is moved to the gap part 14 and goes to the discharge part 312 formed on the outer surface of the cover part 300. The outlet 312 communicates with the outlet 13 . Thus, firefighting water can be discharged to the outlet (13).

Through this discharge process, since the degree of mutual mixing of the fire fighting water and the solid medicine is increased, the solubility of the solid medicine can be further improved. In addition, by adjusting the outlet of the discharged fire-fighting water as above, it is possible to increase the discharge pressure of the fire-fighting water.

The embodiments described in this specification and the accompanying drawings merely illustrate some of the technical ideas included in the present invention by way of example. Therefore, since the embodiments disclosed in this specification are intended to explain rather than limit the technical spirit of the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. All modified examples and specific examples that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

10: fire nozzle 11: passage
12: blocking part 13: outlet
14: interval part
20: vortex generating structure
30: solid medicine
100: body part 110: entrance
120: exit 130: transverse support
140: circular support
200: vortex generating unit
300: cover part 310: outer surface
311: projection 312: discharge
320: inside

Claims (10)

As a fire nozzle having a passage through which water is moved,
A vortex generating structure made of a smaller diameter than the diameter of the passage is disposed inside the passage,
The vortex generating structure includes a hollow body portion having an open inlet and a body having a mesh structure; a vortex generator protruding and spaced apart from the outer surface of the body; And a cover coupled to the outlet end of the body portion to close the outlet,
The body portion includes a plurality of transverse supports provided in the longitudinal direction of the body portion; And a plurality of circular supports provided in a circular shape, disposed in the longitudinal direction, and coupled to at least one side of the inner or outer side of the transverse support, wherein a mesh structure is formed in the space between the transverse support and the circular support A fire nozzle equipped with a vortex generating structure, characterized in that. The method of claim 1,
The fire nozzle with a vortex generating structure, characterized in that the vortex generating structure is disposed spaced apart from the inner surface of the passage portion. delete The method of claim 1,
The vortex generator is a fire nozzle equipped with a vortex generating structure, characterized in that at least one side of the inner or outer side of the body portion protrudes in an oblique direction along the surface of the body portion. The method of claim 4,
The fire nozzle with a vortex generating structure, characterized in that the vortex generating unit is provided in a continuous structure. The method of claim 4,
The fire nozzle with a vortex generating structure, characterized in that the vortex generating unit is provided in a discontinuous structure. The method of claim 1,
The fire nozzle with a vortex generating structure, characterized in that the cover portion is provided with a protrusion on the outer surface. The method of claim 7,
The protrusion is provided in plurality,
A fire nozzle equipped with a vortex generating structure, characterized in that it has a discharge portion provided in the space between each protrusion. The method of claim 8,
The passage part includes a blocking part in which an outlet is formed,
While the protruding portion is in contact with the blocking portion,
A fire nozzle with a vortex generating structure, characterized in that a spacer that is a space between the discharge part and the blocking part is provided. The method of claim 9,
The fire-fighting nozzle having a vortex generating structure, characterized in that the fire-fighting water flows out through the outlet after passing through the gap and moving to the outlet.

Images