KR102117962B1 - Diffusion type spray fire extinguisher - Google Patents

Abstract

The present invention relates to a diffusion type spray fire extinguisher, a container body 11 filled with an extinguishing agent, an inlet pipe 12 installed inside the container body 11, and an upper side of the container body 11 A compression container 10 including a discharge pipe 14; It is installed on the upper end of the compression vessel 10, the opening and closing valve 20 installed between the inlet pipe 12 and the outlet pipe 14; And an injection nozzle 30 coupled to an upper portion of the compression container 10 to spray an extinguishing agent, the injection nozzle 30 having an inlet portion 31 in communication with the discharge pipe 14, and It includes a discharge portion 32 formed at a right angle and communicating with the inlet portion 31, the discharge portion 32 includes a primary discharge port 32a and a final discharge port 32b, but at the primary discharge port 32a A spray fire extinguisher having a diameter that is increased toward the final discharge port 32b is provided. According to the present invention, the discharge portion 32 of the injection nozzle 30 is expanded at a predetermined angle, so that the fire extinguishing radius is wide and the fire can be effectively extinguished.

Description

Diffusion type spray fire extinguisher {DIFFUSION TYPE SPRAY FIRE EXTINGUISHER}

The present invention relates to a diffusion type spray fire extinguisher, and according to one embodiment, relates to a diffusion type spray fire extinguisher having a wide fire extinguishing radius and an optimum spray area and an injection distance by expanding the spray nozzle at a predetermined angle.

Generally, automatic fire extinguishing facilities are installed in large buildings such as buildings and apartments. The automatic fire extinguishing facility automatically extinguishes the fire by spraying the fire extinguishing agent stored in the fire extinguishing agent storage tank through the spray nozzle when a fire is detected by the fire detection sensor. However, the automatic fire extinguishing facility requires a large initial installation cost and requires periodic inspection and replacement of parts, making it difficult to use in general homes or small buildings.

Therefore, in a general home or a small building, a spray extinguisher (or aerosol can extinguisher) having a small purchase burden is provided and used. For example, Korean Patent Registration No. 10-0768785 and Korean Patent Publication No. 10-2017-0084375 disclose techniques related to the above.

1 is a cross-sectional view showing a spray fire extinguisher according to the prior art. Referring to FIG. 1, in general, a spray extinguisher is coupled to an airtight compression container 1, an opening/closing valve 2 installed on the top of the compression container 1, and an upper portion of the compression container 1 to extinguish the medicine. The injection nozzle 3 for spraying is set as a basic configuration. In addition, a pressing portion 3b is formed at the upper end of the injection nozzle 3. The compression container 1 is composed of a metal can, and the extinguishing agent is filled with high pressure therein. The on-off valve 2 is to open and close the compression container 1, which is installed between the inlet pipe 2a and the outlet pipe 2b.

When the discharge pipe (2b) is lowered by pressing the pressing portion (3b), the on-off valve (2) is opened and the high-pressure fire extinguishing agent filled in the compression vessel (1) passes through the inlet pipe (2a) and the outlet pipe (2b). Then, it is injected to the outside through the discharge portion 3a of the injection nozzle 3. Then, when the pressed pressing portion 3b is released, the discharge pipe 2b is returned to its original position (rising) with the restoring force of the spring installed in the opening/closing valve 2, and the opening/closing valve 2 is closed to stop spraying of the extinguishing agent.

The spray fire extinguisher as described above is small and lightweight for easy storage and handling, and can be used by anyone. However, the conventional spray fire extinguisher has an inefficient problem, for example, because the discharge portion 3a formed in the injection nozzle 3 is formed to have a long diameter with the same diameter, as shown in FIG. 1. Specifically, the extinguishing agent is sprayed in an almost straight form through the discharge portion 3a, so that the spraying area (fire suppression radius) of the extinguishing agent is narrow and almost intensively sprayed at a certain point in a straight line to reduce the extinguishing efficiency and the amount of the extinguishing agent used. There are many problems.

Korean Registered Patent No. 10-0768785 Korean Patent Publication No. 10-2017-0084375

Accordingly, an object of the present invention is to provide a diffusion type spray fire extinguisher capable of effectively extinguishing a fire with a wide fire extinguishing radius by expanding the discharge portion of the injection nozzle at a predetermined angle. In addition, an object of the present invention is to provide a diffusion type spray extinguisher having an optimal spraying area, spraying distance and spraying form, and having excellent fire suppression performance and reducing the amount of fire extinguishing agent used.

The present invention to achieve the above object,

A compression container including a container body filled with an extinguishing agent, an inlet pipe installed inside the container body, and a discharge pipe installed above the container body;

An opening/closing valve installed on the upper end of the compression container and installed between the inlet pipe and the outlet pipe; And

It is coupled to the upper portion of the compression container includes a spray nozzle for spraying the extinguishing agent,

The injection nozzle includes an inlet portion which is coupled to the discharge pipe and an outlet portion formed to communicate with the inlet portion at right angles,

The discharge portion includes a primary discharge port and a final discharge port, and provides a spray extinguisher having a diameter that increases from the primary discharge port toward the final discharge port.

According to a preferred embodiment, the spray nozzle follows (a) to (c) below.

(a) A: 1.4mm ~ 1.8mm

(b) B: 2.5mm ~ 3.0mm

(c) L: 6.0mm ~ 6.5mm

Here, A is the diameter (inner diameter) of the primary outlet, B is the diameter (inner diameter) of the final outlet, and L is the distance between the primary outlet and the final outlet.

In addition, the spray fire extinguisher according to the present invention may further include a nozzle separation preventing member for preventing the injection nozzle from being separated from the compression container.

According to the present invention, the discharge portion of the injection nozzle is expanded at a predetermined angle, so that the fire extinguishing radius is wide and the fire can be effectively extinguished. In addition, according to the present invention, it has an optimal spraying area, spraying distance and spraying type, and thus has excellent fire suppression ability and the like, and has the effect of reducing the amount of fire extinguishing agent used.

1 is a cross-sectional configuration of a spray fire extinguisher according to the prior art.
2 is a cross-sectional configuration diagram of a spray fire extinguisher according to an embodiment of the present invention.
3 is a cross-sectional configuration view of a spray nozzle constituting a spray fire extinguisher according to an embodiment of the present invention.
4 is an exploded perspective view of a spray fire extinguisher according to another embodiment of the present invention.
5 is a perspective view of a nozzle separation preventing member according to an embodiment of the present invention.
6 is a cross-sectional configuration diagram of FIG. 4.

The term "and/or" used in the present invention is used to mean including at least one or more of the components listed before and after. In addition, terms such as “first”, “second”, “one side” and “the other side” used in the present invention are used to distinguish one component from other components, and each component is the above term. It is not limited by the field.

According to the first aspect, the present invention provides a spray nozzle of a fire extinguishing agent that is installed on a fire extinguisher and sprays an extinguishing agent, having a wide fire extinguishing radius and capable of effectively extinguishing a fire. According to a second aspect, the present invention provides a spray fire extinguisher comprising the spray nozzle of the present invention. In addition, the present invention provides a nozzle separation preventing member installed in a spray fire extinguisher according to the third aspect to prevent separation of a spray nozzle.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings show exemplary embodiments of the present invention, which are provided only to aid in understanding of the present invention. In addition, in describing the present invention, the spray nozzle and the nozzle separation preventing member according to the present invention will be described together while describing the spray fire extinguisher of the present invention.

2 is a cross-sectional configuration diagram of a spray fire extinguisher according to an embodiment of the present invention, and FIG. 3 is a cross-sectional configuration diagram of a spray nozzle constituting a spray fire extinguisher according to an embodiment of the present invention. In the accompanying drawings, the thickness may be enlarged to express each layer and region clearly, and the scope of the present invention is not limited by the thickness, size, and ratio indicated in the drawings.

2 and 3, the spray fire extinguisher according to the present invention is a closed compression container 10, an on-off valve 20 installed on the top of the compression container 10, and an upper portion of the compression container 10 It is coupled to the injection nozzle 30 to spray the extinguishing agent.

The compression container 10 is a closed structure, which has, for example, a cylindrical shape. The compression container 10 is filled with an extinguishing agent at high pressure. The compression container 10 includes, in particular, a container body 11 filled with an extinguishing agent, an inlet pipe 12 installed inside the container body 11, and a discharge pipe installed above the container body 11 ( 14). At this time, the discharge pipe 14 is installed on the upper side of the container body 11, which is exposed to the outside. In addition, the upper end of the discharge pipe 14 is coupled to the injection nozzle (30).

The container body 11 may be made of a metal material and/or a plastic material, which may be made of, for example, a metal material such as aluminum (Al) or aluminum alloy (Al alloy) as a metal can. And the inlet pipe 12 and the outlet pipe 14, for example, may be composed of a tube (tube) of a synthetic resin material. In addition, a curing portion 15 and a recessed portion 16 may be formed on the upper end of the compression container 10 as usual. The curling part 15 and the recessed part 16 are formed by the curling of the top plate 11a when manufacturing the container body 11 made of a metal can.

The extinguishing agent is not particularly limited as long as it can be extinguished by extinguishing the fire. The extinguishing agent may be selected from gas, liquid, foam, and/or powder, etc., as is usual. The compression container 10 may have a high pressure by the pressure of the extinguishing agent itself or by a propellant filled with the extinguishing agent. The propellant may be selected from nitrogen (N ₂ ), carbon dioxide (CO ₂ ), and/or compressed air. At this time, the fire extinguishing agent may be filled at a pressure of about 7.0kgf/cm 2 in the compression container 10 for proper spraying distance and prevention of explosion risk.

The opening/closing valve 20 is not particularly limited as long as it is installed on the top of the compression container 10 to open and close the compression container 10. The on-off valve 20 may have a structure commonly applied to a fire extinguisher in the form of an aerosol can. The opening/closing valve 20 includes, for example, a housing, a valve body installed inside the housing to open and close the flow of the extinguishing agent, a spring for elastic operation of the valve body, a gasket for airtightness, and the like. can do. The on-off valve 20 is installed between the inlet pipe 12 and the outlet pipe 14 to open and close the flow of the extinguishing agent.

The injection nozzle 30 is made of, for example, a plastic material, which has an injection passage 31 and 32 through which an extinguishing agent is injected. The injection nozzle 30 is an injection flow path 31 and 32 of the fire extinguishing agent, and includes an inlet part 31 through which the extinguishing agent flows and a discharge part 32 through which the extinguishing agent is discharged. According to a specific embodiment, the injection nozzle 30 is a nozzle body 30' of plastic material, a pressing portion 33 formed on the upper end of the nozzle body 30', and the inside of the nozzle body 30' It includes an inlet portion 31 and a discharge portion 32 formed in. In addition, the nozzle body 30' includes an upper body 34 and a lower body 35, but the lower body 35 may have a larger outer diameter than the upper body 34. At this time, the lower body 35 is inserted into the depression 16 formed on the upper end of the compression container 10. In addition, the injection nozzle 30 may further include an expansion portion 36 formed at the outermost end as usual. The expansion portion 36 is formed to have a step 36a in the discharge portion 32, which has a larger diameter than the end of the discharge portion 32.

The inlet portion 31 is formed vertically inside the nozzle body 30', and the discharge portion 32 is formed horizontally inside the nozzle body 30', and the extinguishing agent is a spray nozzle 30 It has a vertical flow and a horizontal flow inside. The inlet portion 31 is fitted to communicate with the discharge pipe 14. In addition, the discharge portion 32 is in communication with the inlet portion 31. That is, the discharge part 32 is integrally formed to communicate while forming a right angle with the inlet part 31.

Accordingly, when the discharge pipe 14 is lowered by pressing the pressing portion 33, the high-pressure fire extinguishing agent filled in the container body 11 is opened and closed, and the inlet pipe 12 and discharge pipe 14 ), and then sprayed to the outside through the injection nozzle 30. At this time, the fire extinguishing agent that has passed through the discharge pipe 14 vertically rises along the inlet portion 31 of the injection nozzle 30, and then bends at a right angle at the branch points of the inlet portion 31 and the outlet portion 32, It is injected horizontally along the discharge portion (32). And when the released pressing portion 33 is released, the opening/closing valve 20 is closed while the discharge pipe 24 is returned to its original position (rising) with the restoring force of the spring installed in the opening/closing valve 20 to stop the injection of the extinguishing agent.

Referring to FIG. 3, according to an embodiment of the present invention, the discharge part 32 includes an initial discharge port 32a and a final discharge port 32b, but toward the final discharge port 32b from the initial discharge port 32a It has a structure with an expanded diameter. That is, the discharge portion 32 includes an enlarged surface S that is opened at a predetermined angle, and has an enlarged discharge structure in which a diameter gradually increases from a discharge start point in communication with the inlet portion 31 to a discharge end point. .

According to the present invention, the fire extinguishing radius is wide and the fire can be effectively extinguished by the expanded discharge part 32. Specifically, compared to the conventional straight injection type, the extinguishing agent is diffused and sprayed while maintaining a constant angle, so the spraying area (fire suppression radius) of the extinguishing agent is wide, and the amount of the extinguishing agent used is not concentrated at a certain point. Can save.

According to a preferred embodiment of the present invention, the injection nozzle 30 follows (a) to (c) below.

(a) A: 1.4mm ~ 1.8mm

(b) B: 2.5mm ~ 3.0mm

(c) L: 6.0mm ~ 6.5mm

Here, A is the diameter (inner diameter) of the primary discharge port 32a, B is the diameter (inner diameter) of the final discharge port 32b, and L is the distance between the primary discharge port 32a and the final discharge port 32b. Specifically, according to a preferred embodiment of the present invention, the diameter (A) of the initial discharge port (32a) is 1.4mm ~ 1.8mm, the diameter (B) of the final discharge port (32b) is 2.5mm ~ 3.0mm, It is preferable that the distance L between the initial discharge port 32a and the final discharge port 32b is 6.0 mm to 6.5 mm.

Further, according to the embodiment of the present invention, the diameter B of the final discharge port 32b is smaller than the inner diameter C of the inlet portion 31. That is, in Fig. 3, A <B <C. In addition, the spray distance of the extinguishing agent sprayed through the final discharge port 32b is preferably maintained at least 3 m. At this time, when maintaining the spraying distance of 3m or more, it is sprayed at an appropriate angle, effective in extinguishing the fire, and the user can be protected from the flame.

In the present invention, the configuration of (a) to (c) in which A, B and L are specified in a certain numerical range is the filling pressure of the compression vessel 10, the diameter (inner diameter) of the inlet 31, and the discharge pipe 14 Considering the diameter (outer diameter) and the like, there is a technical significance in that it has the optimum injection area (injection angle), injection distance and injection type at such filling pressure and diameter. This is as follows.

In general, in the case of a spray fire extinguisher, it should have a filling pressure of about 7.0 kgf/cm 2 at room temperature. Here, the room temperature is the temperature of the room where the fire extinguisher is stored, which may be about 15°C to 25°C. Specifically, as mentioned above, the compression container 10 (spray can) has a pressure of about 7.0 kgf/cm 2 (based on room temperature), specifically 6.8 kgf/cm 2 ~ for proper spraying distance and prevention of explosion risk, etc. The extinguishing agent is filled at a pressure of 7.2 kgf/cm 2. This is also to comply with domestic regulations (less than 8.0kgf/㎠ at a temperature of about 35℃). In addition, the inner diameter C of the inlet 31 is about 4 mm, specifically, in the range of 3.8 mm to 4.2 mm. That is, the inner diameter (C) of the inlet portion 31 has about 4mm by the standard (outer diameter) of the discharge pipe 14 for fitting with the discharge pipe 14 installed on the top of the compression vessel (10).

According to the present invention, based on the filling pressure of the compression container 10 as above, about 7.0kgf/cm 2 and the inner diameter (C) of the inlet 31, about 4mm, the spray nozzles 30 are the (a) to ( If c) is satisfied, the existing compression container 10 and the opening/closing valve 20 may be applied as they are without modification, and may have an optimal injection area (injection angle), injection distance, and injection form.

First, in the above (a) and (b), when out of the range, that is, the diameter (A) of the initial discharge port (32a) is too large and the diameter (B) of the final discharge port (32b) is too small A and B When there is no difference or a small difference, the injection region (fire suppression radius) is narrow as it has a conventional injection shape. And when the diameter (A) of the initial discharge port (32a) is too small and the diameter (B) of the final discharge port (32b) is formed too large, the difference between A and B is too large, the spread of the extinguishing agent is severe and the injection pressure falls. The spraying distance is shortened.

In addition, in (c) above, A and B follow (a) and (b), respectively, but if L is too short as less than 6.0 mm, it is difficult for a portion of the extinguishing agent to sag downward or to have a uniform distribution. That is, when L is less than 6.0mm, most of the extinguishing agent is sprayed at 3m or more at a predetermined angle, but some extinguishing agent is sagging down near the final outlet 32b, or the extinguishing agent after spraying is concentric Eccentricity may occur without being uniformly distributed in the phase. This is considered to be due to a severe vortex phenomenon occurring at the branching point of the initial discharge port 32a, which is bent at a right angle from the inlet portion 31 to the discharge portion 32, and is sharply smaller than the inner diameter C of the inlet portion 31. In addition, A and B follow (a) and (b), respectively, but if L is too long, exceeding 6.5 mm, it may become closer to a linear injection form, and the discharge portion 32 may be too long.

Accordingly, according to the present invention, based on the filling pressure of the compression vessel 10, about 7.0kgf/cm 2 and the inner diameter C of the inlet 31, about 4mm, the diameter B of the final discharge port 32b is It is formed smaller than the inner diameter (C) of the inlet portion 31, if (a), (b) and (c), while the existing compression vessel 10 and the opening and closing valve 20 can be applied as it is It has an optimal injection area (injection angle), injection distance, and injection type. That is, by spreading and spraying at a predetermined angle, the fire extinguishing radius is appropriately wide, and the spraying distance is long as a minimum of 3 m or more, and is sprayed in a uniform distribution on concentric circles, thereby having excellent fire suppression performance and saving effect on extinguishing agents.

[Table 1] below shows the results of the injection test for the specimens of the injection nozzles 30 having different A, B and L values according to an embodiment of the present invention. The spray test was conducted while the discharge part 32 of the spray nozzle 30 was kept horizontal to the ground. At this time, in the [Table 1] below, the injection distance is the distance of the fire extinguishing agent from the end of the discharge portion 32 to the point where it is kept horizontal. In addition, the occurrence of deflection was denoted as "○" when the deflection occurred within a distance of about 2 m from the end of the discharge portion 32, and "X" when no deflection occurred. In addition, the distribution is the distribution of the extinguishing agent distributed in a concentric circle at a spray distance of about 2m (after spraying for 10 seconds).

                          <Results of injection test> Remark A
[mm] B
[mm] L
[mm] Spraying distance
[m] Sagging Distribution Psalm 1
1.6 2.8 6.0 About 4.1 X Uniformity Psalm 2
1.2 3.4 6.0 About 2.6 X Uniformity Psalm 3
1.6 2.8 5.6 About 3.2 ○ Uniformity Psalm 4
1.2 3.4 5.6 About 2.5 ○ Eccentric phenomenon

As shown in [Table 1], when the values of A, B, and L were in accordance with (a) to (c) above, it was found that there was no sag and uniform distribution while securing a spray distance of at least 3 m or more. . In particular, when the difference between A and B is large and L is small, it was found that deflection and eccentricity are severely generated.

On the other hand, the spray fire extinguisher according to the present invention may further include a lid 40 coupled from the upper side of the spray nozzle (30). On the inner surface of the lid 40, a coupling protrusion 45 (see FIG. 2) or a coupling groove 47 (see FIG. 6) may be formed. The coupling protrusion 45 or the coupling groove 47 of the lid 40 may be coupled to the crimping portion 15 of the compression container 10 through hooking or fitting. In FIG. 2, the coupling protrusion 45 of the lid 40 is illustrated on the curling portion 15 through engagement.

In addition, according to another embodiment of the present invention, the spray fire extinguisher according to the present invention may further include a nozzle separation preventing member 50. This will be described with reference to FIGS. 4 to 6 as follows. 4 is an exploded perspective view of a spray fire extinguisher according to another embodiment of the present invention, and FIG. 5 is a perspective view of a nozzle separation preventing member 50 according to an embodiment of the present invention. And Figure 6 is a cross-sectional configuration diagram of Figure 4;

4 to 6, the nozzle separation preventing member 50 is to prevent the injection nozzle 30 from being separated from the compression container 10, which is fitted and compressed at the upper side of the injection nozzle 30 It is combined with the container 10. The nozzle separation preventing member 50 may be, for example, transparent or translucent as a plastic material.

The nozzle separation preventing member 50 includes a separation preventing portion 51, an insertion hole 52 formed at the center of the separation preventing portion 51, and a blocking portion formed integrally extending from the separation preventing portion 51 It includes a 53, a side wall portion 54 formed integrally extending from the blocking portion 53, and a coupling portion 55 formed on the side wall portion 54.

The separation preventing part 51 is in close contact with the lower body 35 of the injection nozzle 30 to prevent separation of the injection nozzle 30. The upper body 34 of the injection nozzle 30 is inserted into the insertion hole 52. As mentioned above, the lower body 35 of the injection nozzle 30 has a larger diameter than the upper body 34. Accordingly, as shown in FIG. 6, the upper body 34 passes through the insertion hole 52 and is exposed upward, and the lower surface 35a of the lower body 35 has a separation prevention part 51 underneath. The sides are in close contact.

In addition, the blocking portion 53 is located on the depression 16 formed at the top of the compression container 10. The blocking part 53 blocks the inflow of an extinguishing agent or a foreign substance into the depression 16. As mentioned above, a depression 16 is formed in the compression container 10 when the upper plate 11a is cured. An extinguishing agent or a foreign substance may be introduced into the depression 16 to be stacked. For example, when spraying an extinguishing agent, an extinguishing agent may be introduced into the depression 16, or a foreign material may be introduced into the depression 16 when the fire extinguisher is stored and stacked. The blocking portion 53 is located on the depression 16 to block the inflow of extinguishing agents or foreign substances.

The side wall portion 54 is in close contact with the upper side of the compression container (10). That is, the side wall portion 54 is fitted to the sealing portion 15 of the compression container 10 to be in close contact. The coupling portion 55 is intended to promote the coupling force between the compression container 10 and the nozzle separation preventing member 50, which is coupled to the curling portion 15 formed on the top of the compression container 10. The coupling portion 55 may have a protrusion or groove structure, and in the drawing, a protrusion structure protruding from the inner surface of the side wall portion 54 is illustrated. At this time, a plurality of engaging portions 55 of the protrusion structure may be formed on the inner surface of the side wall portion 54.

In addition, a cut-out groove 56 may be formed in the side wall portion 54. The incision grooves 56 are elastically opened and coupled when the side wall portion 54 is fitted to the curling portion 15, which may be formed in plural at the bottom of the side wall portion 54. In addition, the side wall portion 54 may be formed with a protrusion 57 for a coupling force with the lid 50. The protrusion 57 may be formed to protrude along the circumference to the top or center of the outer surface of the side wall part 54, which is engaged or fitted with the engaging projection 45 or the engaging groove 47 of the lid 40. Can be combined through. In FIG. 6, the shape in which the protrusion 57 is coupled to the coupling groove 47 of the lid 40 through fitting is illustrated.

According to the present invention described above, the discharge part 32 of the injection nozzle 30 is expanded at a predetermined angle, so that the fire extinguishing radius is wide and the fire can be effectively extinguished. In addition, according to the present invention, when the discharge portion 32 includes the initial discharge port 32a and the final discharge port 32b, but follows (a) to (c) as described above, the optimum injection area, injection It has excellent fire extinguishing ability with distance and spray type, and can reduce the amount of fire extinguishing agent. Additionally, when the nozzle separation prevention member 50 as described above is included, it prevents the injection of the fire extinguishing agent or foreign substances into the depression 16 while preventing the separation of the injection nozzle 30.

10: compression container 20: opening and closing valve
30: injection nozzle 31: inlet
32: discharge portion 33: pressing portion
34: upper body 35: lower body
40: lid 50: nozzle separation prevention member

Claims (3)

delete A compression container (10) comprising a container body (11) filled with an extinguishing agent, an inlet pipe (12) installed inside the container body (11), and a discharge pipe (14) installed above the container body (11). );
It is installed on the upper end of the compression vessel 10, the on-off valve 20 is installed between the inlet pipe 12 and the outlet pipe 14; And
It is coupled to the upper portion of the compression container 10 includes a spray nozzle 30 for spraying a fire extinguishing agent,
The injection nozzle 30 includes an inlet portion 31 in communication with the discharge pipe 14 and an outlet portion 32 formed in communication with the inlet portion 31 at right angles,
The discharge part 32 includes a primary discharge port 32a and a final discharge port 32b.
The filling pressure of the extinguishing agent filled in the container body 11 of the compression container 10 is 6.8kgf/cm 2 ~ 7.2kgf/cm 2,
The inlet 31 of the injection nozzle 30 has an inner diameter (C) of 3.8mm ~ 4.2mm,
A spray extinguisher characterized in that the ejection portion 32 of the injection nozzle 30 follows (a) to (c) below.
(a) A: 1.4mm ~ 1.8mm
(b) B: 2.5mm ~ 3.0mm
(c) L: 6.0mm ~ 6.5mm
(Here, A is the diameter of the primary outlet 32a, B is the diameter of the final outlet 32b, and L is the distance between the primary outlet 32a and the final outlet 32b.)
According to claim 2,
The spray extinguisher further includes a nozzle separation preventing member 50 that prevents the injection nozzle 30 from being separated from the compression container 10,
The compression container 10 includes a curling portion 15 and a depression 16 formed by the curing of the top plate 11a at the time of manufacture of the container body 11,
The injection nozzle 30 includes a nozzle body 30', a pressing portion 33 formed on the top of the nozzle body 30', an inlet portion 31 formed inside the nozzle body 30', and Including the discharge portion 32, the nozzle body 30' passes through the insertion hole 52 formed in the nozzle separation preventing member 50, and the upper body 34 exposed upward and the compression container ( 10) includes a lower body 35 that is inserted into the depression 16 formed at the top, the lower body 35 has a larger diameter than the upper body 34,
The nozzle separation preventing member 50,
A separation preventing part 51 in close contact with the lower body 35 of the spray nozzle 30;
An insertion hole 52 formed in the center of the separation preventing portion 51 and into which the upper body 34 of the injection nozzle 30 is inserted;
It is formed extending from the separation preventing part 51 and is located on the recessed part 16 formed on the upper end of the compression container 10 to block the inflow of an extinguishing agent or a foreign substance into the recessed part 16. Part 53;
A side wall part 54 extending from the blocking part 53 and formed and in close contact with an upper side of the compression container 10; And
Spray extinguisher, characterized in that it comprises a coupling portion (55) formed on the side wall portion (54) and coupled to the curling portion (15) formed on top of the compression container (10).

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