KR101532592B1 - Spray nozzle for fire-extinguishing - Google Patents

Abstract

According to the present invention, an injection nozzle for fire-extinguishing comprises: a nozzle body having a supply hole through which fire-extinguishing water is supplied; an injection unit having an injection groove; and a connection unit which connects the nozzle body to the injection unit to connect the supply hole to the injection groove and has a deflector to change the direction of the fire-extinguishing water injected through the injection groove and to make the fire-extinguishing water into fine particles by coming in contact with the fire-extinguishing water. Therefore, the injection nozzle for fire-extinguishing allows the fire-extinguishing water to be widely injected with the use of a deflector which changes the direction of the fire-extinguishing water injected through the injection groove and makes the fire-extinguishing water into fine particles by coming in contact with the fire-extinguishing water; allows the fire-extinguishing water particles to be uniformly expanded to a space including a space below the center of the injection nozzle through multiple injection routes; and allows the injected fire-extinguishing water to be made into ultrafine particles.

Description

[0001] Spray nozzle for fire-extinguishing [0002]

Disclosed is a fire extinguishing spray nozzle capable of uniformly spreading fire extinguishing water particles uniformly throughout the entire length of the spray nozzle including the lower part of the spray nozzle while ensuring a wider diffusion width of the water extinguishing water particles, To the spray nozzle for fire extinguishing.

Generally, in order for a fire to proceed continuously, there must exist a chain reaction of an ignition source, oxygen and flammable substances, and it is necessary to remove any one of combustible materials, oxygen supply or chain reaction such as interruption of supply of oxygen, If the fire can be done, the fire can be suppressed. Based on this principle, fire extinguishing facilities for suppressing the fire at an early stage in various buildings and factories are installed in protected objects or protected areas.

In recent years, swirl type fire extinguishing nozzles have been used to extend the diffusion range of fire extinguishing water in such fire extinguishing facilities, and micro nozzles have been used for spraying in the form of fine powder.

However, the conventional vortex type spray nozzle for fire extinguishment may cause a problem of clogging due to foreign matter, and since it is manufactured in the form of a micro-nozzle, it is difficult to reuse because it is difficult to clean.

In addition, since the number of parts is large and the assembly is not easy, it is difficult to manufacture and separation or assembly for washing is not easy.

In addition, although the spray angle of the water can be widened by the formation of the vortex, a large amount of water is sprayed to the outside of the spray nozzle, and a small amount of water sprayed below the center of the spray nozzle forms a dead zone in which no water is sprayed, There is a difficult problem.

It is an object of the present invention to provide a spray nozzle for fire extinguishing which is designed to solve the above-mentioned problems and which can ensure a wider spread of the fire extinguisher particles.

Another object of the present invention is to provide a spray nozzle for fire extinguishing which is capable of uniformly dispersing fire-extinguishing water particles as a whole including a lower portion of the spray nozzle.

It is another object of the present invention to provide a spray nozzle for fire extinguishing which is capable of reducing the number of particles of fire water and increasing the function of pulverizing the fire water to be sprayed.

According to an aspect of the present invention, there is provided a spray nozzle for fire extinguishing, comprising: a nozzle body having a supply hole for supplying water to be sprayed; An injection unit in which a jetting groove is formed; And a connection unit connecting the nozzle body and the injection unit so that the supply hole and the injection groove are communicated with each other, and a deflector is formed so that the firewater injected through the injection hole collides with the firewater and is diverted and undifferentiated.

Specifically, the injection unit has the injection groove formed on the surface contacting the connection unit to form the injection path of the extinguished water, and the connection unit may be formed by protruding the deflector around the injection groove have.

Here, the deflector may be formed in a multi-stage in which the internal surface where the fire extinguishing water collides is different in the degree of inclination.

At this time, the angle of the plurality of the inner surfaces of the inner surface with respect to the horizontal direction with respect to the surface adjacent to the injection groove may be large.

In addition, the inner surface of the deflector may be spaced apart from the radially outer end of the injection groove formed in the radial direction.

Further, the injection unit may be arranged such that the injection groove is inclined to one side with respect to the radial direction.

At this time, the injection groove may have a triangular-shaped vertical section with respect to the longitudinal direction.

The connection unit includes a connection hole having a blocking wall for communicating the supply hole and the injection groove, wherein the through hole through which the digestion water passes is formed in the blocking wall, and a locking hole through which the locking member is inserted is formed, In the injection unit, a receiving groove communicating with the jetting groove is formed on the surface corresponding to the blocking wall, and the receiving groove is formed with a coupling groove into which the coupling member is inserted.

The defroster spraying nozzle according to the present invention is configured such that the defrosting water is directed and refined while colliding with the fire extinguishing water through the jetting grooves so that the spraying routes for the extinguishing water particles do not overlap, It has the advantage of uniformly spreading digestive water particles as a whole.

In addition, the present invention has the effect of making the particles of water of digestion water smaller and increasing the function of pulverizing digested water.

1 is a perspective view showing a fire-extinguishing nozzle according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view showing the fire-extinguishing spray nozzle of Fig. 1;
FIGS. 3 and 4 are a perspective view and a vertical cross-sectional view showing the nozzle body in the fire fighting injection nozzle of FIG. 2;
FIGS. 5 and 6 are a perspective view and a vertical cross-sectional view showing the connection unit in the fire-fighting injection nozzle of FIG.
Figs. 7 and 8 are a perspective view and a vertical cross-sectional view showing the injection unit in the fire fighting injection nozzle of Fig. 2;
Fig. 9 is a vertical sectional view showing the fire-extinguishing spray nozzle of Fig. 1;

INDUSTRIAL APPLICABILITY The fire-extinguishing spray nozzle of the present invention can ensure a wider diffusion width of the extinguishing water particles, and can uniformly diffuse the extinguishing water particles including the lower part of the spray nozzle, The deflector is constituted such that the number of digestions injected through the injection grooves collide with each other to change direction and differentiate the particles so as to increase the function of pulverizing the digested water to be smaller.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view showing a fire-extinguishing spray nozzle according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view showing the fire-extinguishing spray nozzle of FIG.

3 and 4 are a perspective view and a vertical sectional view showing the nozzle body in the fire fighting injection nozzle of FIG. 2, and FIGS. 5 and 6 are a perspective view and a vertical cross-sectional view of the connection unit in the fire fighting injection nozzle of FIG. Figs. 7 and 8 are a perspective view and a vertical cross-sectional view showing the injection unit in the fire fighting injection nozzle of Fig. 2;

The nozzle body 100 includes a supply hole 110 through which the water is supplied and an injection unit 200 in which the injection groove 211 is formed. And a connection unit 300 connecting the nozzle body 100 and the injection unit 200 so as to communicate with each other.

As shown in FIGS. 3 and 4, the nozzle body 100 may have a cylindrical shape having a circular horizontal section. In this case, the nozzle body 100 may be a hollow A hole 110 is formed in the supply hole 110. The supply hole 110 is formed at its lower end with an enlarged space 110a having a relatively large diameter. Is temporarily stored in the expansion space (110a), and is supplied to the injection unit (200) at a higher pressure. That is, when the expansion space 110a in which the number of digestions is expanded remains and remains in the relatively narrow space, the flow velocity is increased so that the digestion water can be undifferentiated when it is injected. Although the digestion water is not shown in the figure, the digestion water supply line is connected to the upper end of the supply hole 110 and flows through the digestion water supply line.

In the nozzle body 100, the connection unit 300 may be rigidly assembled and coupled to the lower portion of the nozzle body 100. For example, the nozzle body 100 may include a body screw line 120 formed on an outer surface thereof, A connecting thread line 320 is formed on the inner side surface 351 of the connection hole upper portion 310a of the connection unit 300 so that the connection screw 310 is inserted into the connection hole 310 of the connection unit 300, . Further, it is needless to say that the coupling between the nozzle body 100 and the coupling unit 300 can be achieved through any coupling structure other than screw coupling.

In addition, the nozzle body 100 is formed with an engagement protrusion 130 on the upper side of the body screw line 120, and a support protrusion 330 is formed at an edge of the upper periphery of the lower connection unit 300 The insertion jaws 130 are supported by the support jaws 330 when the jaws 130 are inserted into the connection holes 310 of the connection unit 300 so that the insertion of the jaws 130 can be restricted at an appropriate height, The bottom surface may be spaced apart from the blocking wall 341 formed in the connection hole 310 of the connection unit 300 to form a storage space (W in FIG. 9). At this time, the storage space W is a space having a larger diameter than the expansion space 110a of the supply hole 110, and the digestion water supplied through the supply hole 110 is temporarily stored in the storage space W To the injection unit 200 at a higher pressure. Of course, the assembling structure of the engagement protrusion 130 and the support protrusion 330 also prevents the nozzle body inserted into the connection hole 310 of the connection unit 300 from being detached laterally.

In addition, the nozzle body 100 may have a sealing structure to maintain airtightness with the connecting unit 300 to be coupled. For example, as shown in the figure, a sealing groove 140 is formed on the outer side of the screw body, And a sealing member 150 such as an O-ring is fitted in the sealing groove 140 so that the connection unit 300 is hermetically assembled with the inner surface 351 of the connection unit 300 when the connection unit 300 is screwed to the lower portion. . Further, the sealing structure of the nozzle body 100 and the connecting unit 300 may be configured by arranging at least one or more sealing members 150 as described above, and is not limited thereto, and any conventional sealing structure may be utilized Of course.

The connection unit 300 has a structure in which the nozzle body 100 is connected to the nozzle body 100 at an upper portion and is coupled to the injection unit 200 at the lower portion to connect the nozzle body 100 and the injection unit 200 Take it.

5 and 6, a connection hole 310 is formed in the connection unit 300. When the nozzle body 100 and the injection unit 200 are connected to each other, 310 have a structure for communicating the supply hole 110 of the nozzle body 100 and the injection groove 211 of the injection unit 200.

The injection unit 200 may be firmly assembled to the lower portion of the connection unit 300. For example, the injection unit 200 may be inserted into the connection hole lower portion 310b as shown in FIG. 342 are inserted into the connection unit 300 and the injection unit 200 so that they can be coupled to each other by fixing them together. More specifically, the connection unit 300 is formed with a locking hole 341b through which the coupling member 342 is inserted into the blocking wall 341 formed in the connection hole 310, A coupling groove 221 is formed in the receiving groove 220 formed in the surface corresponding to the coupling member 341 so that the coupling member 342 is inserted into the coupling groove, And the lower portion is inserted into the coupling groove 221 and screwed together, so that the coupling unit 300 and the injection unit 200 are firmly coupled to each other. Further, it is needless to say that the coupling structure of the coupling unit 300 and the injection unit 200 is not limited to the present invention, and any other rigid coupling structure may be utilized.

The connection hole 310 is a fire extinguishing water passage for communicating the supply hole 110 of the upper nozzle body 100 and the injection hole 211 of the lower injection unit 200. The connection hole 310a, A through hole 341a and a lower portion 310b of the connection hole are arranged in a downward sequence.

In the meantime, the injection unit 200 has a jet groove 211 formed on a surface contacting with the connection unit 300 to form the jet path of the extinguished water.

7 and 8, the spraying unit 200 includes a receiving groove 220 in which a fire extinguishing water is received and a receiving groove 220 is formed in a surface corresponding to the blocking wall 341, The injection groove 211 is formed on the upper surface of the peripheral protrusion 210. Here, the receiving groove 220 is a space having a relatively larger diameter than the through hole 341a of the connecting unit 300, and the number of digits flowing down through the through hole 341a of the connecting unit 300 So that it is temporarily stored in the receiving groove 220 and can be injected through the jet groove 211 at a higher pressure.

In addition, the injection unit 200 may be formed with an injection groove 211 in a radial direction, and may be inclined to one side with respect to the radial direction. That is, the injection grooves 211 are arranged in the radial direction on the upper surface of the protruding portion 210, but are not aligned with the radial direction, but are disposed in a direction inclined with respect to the radial direction. A plurality of the jetting grooves 211 are formed in the protruding portion 210 to form a whirling pattern as a whole. Accordingly, the extinguished water injected through the injection grooves 211 is injected with a directional direction along the direction of arrangement of the injection grooves 211 to be sprayed while forming a vortex, It is possible to secure a wider diffusion width.

In addition, it is preferable that the injection groove 211 has a triangle-shaped vertical section with respect to the longitudinal direction. The digested water flows while rubbing against the inner surface 351 forming the injection groove 211 at the time of injection through the injection groove 211. The smaller the friction surface is, the higher the injection speed is, Can be made smaller and smaller. Accordingly, the injection groove 211 has a vertical cross-section in a triangular shape so as to have a minimum friction surface while securing a flow path through which the digester water flows.

5, 6, and 9, the connection unit 300 includes a connection unit 300 for connecting the fire extinguishing water injected through the injection groove 211 of the injection unit 200, The deflector 350 is formed so as to be redirected and undifferentiated while being collided. 9, the injection unit 220 is a partially modified cross-sectional view in which the cross-sectional portion is rotated so that the injection grooves 211 are disposed on both sides in the drawing.

Conventionally, a large number of fire extinguishing water is sprayed to the outside and a lower portion of the spraying nozzle is sprayed to form a dead zone where the fire water is not sprayed. The deflector 350 is sprayed so that the fire extinguishing water It plays a role of switching the direction of digestion water.

In addition, the deflector 350 can ensure a wider diffusion width of the extinguishing water particles to be sprayed, and further serves to further differentiate the extinguishing water particles into mist particles.

9, the deflector 350 collides with the deflector 350 in the process of spraying the extinguished water through the jet grooves 211 of the ejection unit 200 to be more undifferentiated, And is formed so as to protrude from the periphery of the injection groove 211 so as to be formed. That is, in the injection groove 211, the upper surface of the protrusion 210 contacts the lower surface of the blocking wall 341 of the connection unit 300, so that the fire water is injected along the inside thereof. The deflector 350 is located in the injection path in the horizontal direction, so that the deflector 350 collides with the fire extinguishing water. After colliding with the deflector 350, the direction of the fire extinguisher is changed. For reference, the injection grooves 211 in the present invention include a horizontal arrangement structure including a horizontal direction. At this time, when the engine is out of the fire-fighting water injection grooves 211 to be injected through the injection grooves 211, (Corresponding to the first inclined surface 351a described later) of the inner side surface 351 of the deflector 350 and a lower portion (corresponding to the second inclined surface 351a described later) of the deflector 350, Corresponding to the inclined surface 351b).
In this way, the inner surface 351 of the deflector 350 is disposed in the collision region where the fire water collides with the fire water injection path through the injection groove 211.

In addition, as a preferred example, the deflector 350 may have a multi-tiered inner surface 351 on which the fire water collides, and may have a structure inclined in the horizontal direction toward the end portion. That is, the deflector 350 may be formed as a plurality of stepped structures arranged in a horizontal direction gradually toward the end side in the structure in which the surfaces to be collided with the digestion water are disposed in the vertical direction. In other words, the plurality of planes of the inner side surface 351 form a larger angle with the horizontal direction as the surface adjacent to the injection groove 211 is.

In the figure, a surface located on the upper side of the inner side surface 351 of the deflector 350 is a first inclined surface 351a, and a surface positioned below the first inclined surface 351a is a second inclined surface 351b )to be. In this case, the first inclined surface 351a and the second inclined surface 351b may have different inclination angles, and the first inclined surface 351a may be a vertical surface as shown in the drawing. Of course, the inner surface 351 of the deflector 350 is spaced apart from the radially outer end of the jetting groove 211 so that the extinguished water passes through the radially outer end, which is the outlet of the jetting groove 211, And has a certain distance to the inner side 351.

The multi-stage deflector 350 collides the extinguishing water with the surfaces having various angles, so that the diffusion width of the extinguishing water particles can be made wider and the injection route for the extinguishing water particles can be overlapped It is possible to uniformly distribute the digestive water particles evenly below the center of the injection nozzle while minimizing the number of digestive water particles and to enhance the function of superimposing the digested water to be injected.

As a result, in the present invention configured as described above, the deflector 350 is configured such that the fire extinguishing water injected through the jetting grooves 211 collides with the fire extinguishing water while the fire extinguishing water collides with the fire extinguishing water, The diffusion width of the extinguished water can be further widened and further the particles of the extinguished water can be more finely pulverized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100: nozzle body 110: supply hole
110a: extension space 120: body screw line
130: latching jaw 140: sealing groove
150: sealing member W: storage space
200: injection unit 210:
211: jetting groove 220: receiving groove
221: fastening groove 300: connecting unit
310: connection hole 310a: connection hole top
310b: connection hole bottom 320: connection thread line
330: support jaw 341: blocking wall
341a: through-hole 341b: latching hole
342: fastening member 350: deflector
351: Inner side surface 351a: First inclined surface
351b: second inclined surface

Claims (8)

A nozzle body (100) having a supply hole (110) through which water is supplied; An injection unit 200 having injection grooves 211 formed therein; And connecting the nozzle body 100 and the spray unit 200 so that the supply hole 110 and the spray groove 211 are communicated with each other and the water is sprayed through the spray groove 211, And a connection unit (300) in which a deflector (350) is formed so as to be undifferentiated,
The injection unit 200 has the injection groove 211 formed on the surface contacting the connection unit 300 to form the injection path of the extinguishing water and the extinguishing water is injected through the injection hole 211 The coupling unit 300 is formed with the deflector 350 protruding around the injection groove 211,
The inner surface 351 of the deflector 350 is disposed in a collision region where the fire extinguishing water collides with the injection path of the fire extinguishing water injected through the injection groove 211 and the inner surface 351 Wherein the plurality of surfaces of the inner side surface (351) are formed to have a larger angle with respect to the horizontal direction as the surface adjacent to the injection groove (211) is larger.
delete delete delete The method according to claim 1,
Wherein the inner side surface (351) of the deflector (350) is spaced apart from the radially outer end of the injection groove (211) formed in the radial direction side.
The method according to claim 1,
Wherein the injection unit (200) is arranged such that the injection groove (211) is inclined to one side with respect to the radial direction.
The method according to claim 1,
Wherein the injection groove (211) has a vertical cross section with respect to the longitudinal direction of the injection groove (211) in a triangular shape.
8. The method according to any one of claims 1 and 5 to 7,
The connection unit 300 is formed with a connection hole 310 having a blocking wall 341 for communicating the supply hole 110 and the injection groove 211, A through hole 341a through which the fastening member 342 is inserted and a fastening hole 341b through which the fastening member 342 is inserted,
The injection unit 200 has a receiving groove 220 in which the fire extinguishing water is received and communicated with the jetting groove 211 is formed on a surface corresponding to the blocking wall 341, Wherein a fastening groove (221) for fastening the fastening member (342) is formed.

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