KR20110047319A - Spray nozzle for spray extinguisher and spray extinguisher using the same - Google Patents

Abstract

When the extinguishing material discharged by the pressure in the compression container is injected from the injection nozzle, the injection pressure is increased to improve the extinguishing performance, and the injection angle and the injection amount of the extinguishing material sprayed from the injection nozzle can be The present invention provides a spray nozzle for spray extinguisher and spray extinguisher using the same, which can be easily set to an optimal condition to improve the extinguishing performance.

Spray extinguisher of the present invention, a compression vessel sealed to store and extinguish extinguishing material, an on-off valve installed through the top of the compression vessel so as to be kept airtight, and located in the upper portion of the compression vessel to open and close the valve It is coupled to the opening and closing operation to the front of the outer circumference is made of a push button protruding injection nozzle, the injection nozzle, the diameter of the outlet in which the extinguishing material discharged from the opening and closing valve through the passage in the push button flows in than the diameter of the inlet Is formed by forming a conical compression hole having a small diameter, and an injection hole having a jet inlet and a jet outlet having the same diameter as the outlet of the compression hole, and having a jet inlet connected to the outlet of the compression hole in a straight line, The compression hole and the injection hole is a sphere arranged in a straight line on the center line of the nozzle body Last name.

Description

Spray nozzle for spray fire extinguisher and spray fire extinguisher using the same {INJECTING NOZZLE AND SPRAY FIRE EXTINGUISHER USING THE SAME}

The present invention relates to a spray nozzle for spray fire extinguishers and a spray fire extinguisher using the same, and more particularly, to increase the spray pressure of the extinguishing material discharged from the spray nozzle than the spray pressure discharged depending on the pressure in the compression vessel, The present invention relates to a spray nozzle for spray extinguisher and a spray extinguisher using the same, wherein the spray amount and the spraying angle of the extinguishing substance sprayed from the extinguishing substance can be easily set to the optimum conditions to improve the extinguishing performance according to the extinguishing substance.

Fires can cause enormous casualties and property damage, so you should always pay attention to preventing fires and equip them with fire extinguishing equipment at the right place. The damage caused by

For example, well-known powder fire extinguishers, such as fire hoses and sprinklers, are equipped with fire extinguishing facilities, such as fire hoses and sprinklers. However, small buildings that are not subject to the provisions of general households or firefighting laws lack safety awareness or publicity about fires, and are expensive to provide firefighting safety facilities or powdered fire extinguishers. Since maintenance is cumbersome and necessary, most of them are not provided.

Therefore, in recent years, the purchase burden is less, can be easily used by anyone at home or a vehicle, small and light spray extinguisher is easy to store and handle.

The spray fire extinguisher is configured to compress and store the extinguishing material in the compression container and selectively open and close the valve to eject the extinguishing material through the injection nozzle. As shown in FIG. 1, the extinguishing material is sealed to store and compress the extinguishing material. Compression container (1), on / off valve (2) installed in the upper end of the compression container (1) so as to be kept airtight, combined with the on / off valve (2) in the upper portion of the compression container (1) on / off valve (2) ), And the push button (4) in which the injection nozzle (3) is integrally protruded in front of the outer circumferential surface as a basic configuration.

The on-off valve 2 is a well-known configuration, the inlet pipe (1a) which is located in the compression vessel (1) is installed at the bottom, the upper part is coupled to the push button (4) to communicate with the injection nozzle (3) When the discharge pipe 2b is provided and the push button 4 is pressed to lower the discharge pipe 2b, the opening / closing valve 2 is opened so that the extinguishing material in the compression vessel 1 is discharged into the inlet pipe 2a and By extinguishing through the discharge tube 2b, the extinguishing substance can be injected from the injection nozzle 2, and when the push button 4 is released, the discharge tube is released by the elastic restoring force of the spring provided in the on-off valve 2. As the 2b is returned to its original position, the on-off valve 2 is closed again to stop the injection of the extinguishing material.

In such spray extinguishers, the extinguishing performance is determined by the injection pressure, the injection amount and the injection angle of the extinguishing material. When the injection pressure is too low, the fire distance is difficult to extinguish the fire, and when the injection amount is too small, the extinguishing performance is reduced. If too much, it is inefficient, and if the injection angle is larger than necessary, the extinguishing power is weak and too small, there is a problem that the extinguishing performance is reduced by narrowing the extinguishing range.

Therefore, in order to increase the extinguishing performance of the spray fire extinguisher, the pressure in the compression container 1 can be set high to increase the injection pressure of the extinguishing material. However, if the pressure in the compression container 1 is set too high, there is a risk of explosion, so The pressure in the container 1 is prescribed | regulated not to exceed 8 kg / cm <2> or more normally at 40 degreeC.

In addition, the spray extinguisher of the conventional structure is formed by the injection nozzle 3 integrally formed on the outer circumferential surface of the push button 4 and protruded long, and the injection hole 3a of the injection nozzle 3 is simply formed with the same diameter. Because of the constitution, only the function of simply injecting the extinguishing substance discharged by the pressure in the compression container 1 in the linear direction could be performed.

Therefore, the injection pressure of the extinguishing material is determined depending on the pressure in the compression vessel (1), there is a limit to improve the extinguishing performance, the more the spray extinguisher is used, the lower the pressure in the compression vessel (1), the injection pressure of the extinguishing substance is also There is a problem that the digestion performance is gradually reduced. In particular, even when the pressure in the compression container 1 is the same, the injection pressure and the spray angle may be different depending on the type of the extinguishing material. As the extinguishing material, the liquid having a higher density than the low density gas is used as the injection nozzle ( When sprayed from 3) the injection pressure is reduced and this has a disadvantage in that the extruding performance is further lowered by narrowing the injection angle.

The present invention is to solve the conventional problems as described above, the object is to improve the extinguishing performance by making the injection pressure higher when the extinguishing material discharged by the pressure in the compression vessel is injected from the injection nozzle and For spray extinguishers that can effectively suppress or extinguish fires by making it easy to set the spray angle and the spray amount of extinguishing materials sprayed from the spray nozzles to the optimum conditions to improve the extinguishing performance according to the type of extinguishing materials. An injection nozzle and a spray fire extinguisher using the same are provided.

In order to achieve the above object, the present invention provides a conical compression hole having a smaller diameter of an outlet outlet than a diameter of an inlet through which extinguishing material is introduced, and an injection inlet and an injection outlet having the same diameter as the outlet of the compression hole. The injection hole is formed at the outlet of the compression hole is formed in the nozzle body is formed in a straight line in the nozzle body, the compression hole and the injection hole is characterized in that the spray nozzle for spray fire extinguisher disposed in a straight line on the center line of the nozzle body There is this.

In addition, the nozzle body of the present invention further comprises a guide hole having a diameter larger than that of the injection hole and formed in a straight line subsequent to the injection outlet of the injection hole, wherein the guide hole and the injection hole are disposed in a straight line on the center line of the nozzle body. It features a spray nozzle for spray extinguishers.

In another aspect, the present invention is a closed compression container for storing and compressing the extinguishing material, an on-off valve installed through the top of the compression container so as to be airtight, and located on top of the compression container to open and close the open / close valve. In the spray fire extinguisher coupled to the outer circumferential surface in front of the push button with the injection nozzle protruding, the injection nozzle, the diameter of the outlet in which the extinguishing material discharged from the on-off valve through the passage in the push button flows in and outflows than the diameter of the inlet Is formed by forming a conical compression hole having a small diameter, and an injection hole having a jet inlet and a jet outlet having the same diameter as the outlet of the compression hole, and having a jet inlet connected to the outlet of the compression hole in a straight line, The compression hole and the injection hole are in a straight line on the center line of the nozzle body. It is characterized in the batch spray extinguisher.

In addition, the nozzle body of the present invention further comprises a guide hole having a diameter larger than that of the injection hole and formed in a straight line subsequent to the injection outlet of the injection hole, wherein the guide hole and the injection hole are disposed in a straight line on the center line of the nozzle body. It is characterized by a spray fire extinguisher.

In another aspect, the present invention is characterized in that the spray nozzle and the push button is formed separately, the push button is formed in the spraying fire extinguisher to form a coupling hole to the injection nozzle fixed to the coupling hole.

According to the spray nozzle for spray extinguisher and spray extinguisher using the same according to the present invention having the above-described configuration, since the extinguishing material discharged by the pressure of the compression container is compressed by the compression hole of the spray nozzle, the discharge pressure of the extinguishing material is further increased. As a result, the injection pressure of the extinguishing material injected through the injection hole of the injection nozzle is increased, so that the extinguishing performance during fire extinguishing is further improved, even when the pressure in the compression vessel is weakened due to the use of the extinguisher. As the injection pressure of the extinguishing material is increased by the compression hole of the nozzle, the extinguishing performance can be maintained. In particular, when a high density liquid extinguishing material is used, it is possible to compensate for the pressure drop when spraying through the injection nozzle. Therefore, it can be usefully applied to liquid extinguishing materials.

In addition, the present invention, since the injection amount and the injection angle of the extinguishing material is adjusted by determining the diameter and the direction of the injection direction when forming the injection hole formed in the injection nozzle, it is possible to set the extinguishing performance and the extinguishing range at the time of fire extinguishing. In particular, in the case of using a gas or liquid having a different density as the extinguishing material, it is easy to set the extinguishing performance according to the type of extinguishing material to the optimum conditions by forming the diameter of the injection hole and the length of the spraying direction. It is a useful invention that can effectively suppress or extinguish a fire by improving performance.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a perspective view showing a part of the spray nozzle for the spray fire extinguisher of the present invention, the injection nozzle 10 of the present invention is composed of a cylindrical nozzle body 11, on the longitudinal center line of the nozzle body 11 The compression hole 12, the injection hole 13, and the guide hole 14 are formed successively in the linear direction.

The compression hole 12 has an inlet 12a through which extinguishing material flows in and a outlet 12b through which the extinguishing material flows, and has a conical shape in which the diameter of the outlet 12b is smaller than the diameter of the inlet 12a. have. Therefore, since the extinguishing material introduced into the inlet 12a of the compression hole 12 is gradually compressed toward the outlet 12b having a smaller diameter, the pressure at the outlet 12b side is greater than the pressure at the inlet 12a side. This pressure increase rate can be set by adjusting the diameter ratio of the inlet 12a and the outlet 12b at the time of formation of the compression hole 12.

In addition, the injection hole 13 forms an injection inlet 13a and an injection outlet 13b having the same diameter as the outlet 12b of the compression hole 12, and the outlet 12b of the compression hole 12. The injection inlet (13a) is formed in a straight line in succession to spray the extinguishing material increased pressure by the compression hole 12 to the injection outlet (13b), the inlet (13a) of the injection hole 13 is compressed It is also the outlet 12b of the hole 12.

At this time, the diameter of the injection hole 13 determines the injection speed, that is, the injection amount of the extinguishing material, the length of the injection direction of the injection hole 13 determines the injection angle of the extinguishing material. First, with respect to the diameter of the injection hole 13, the larger the diameter, the cross-sectional area of the injection hole 13 is increased to increase the injection amount of the extinguishing material to be injected, and the smaller the diameter, the lower the cross-sectional area of the injection hole 13 is injected Since the injection amount of the extinguishing substance is reduced, by setting the size of the diameter according to the type of extinguishing substance at the time of forming the injection hole 13, it is possible to determine the injection amount suitable for the fire suppression and to effectively suppress or extinguish the fire. have.

In addition, with respect to the length of the injection direction of the injection hole 13, the pressure is gradually lowered in the process of passing the injection hole 13a of the extinguishing material flowing into the injection inlet 13a of the injection hole 13, The longer the length of 13 is, the lower the injection pressure is injected to the injection outlet 13b of the injection hole 13. Therefore, the higher the injection pressure of the extinguishing material injected into the injection outlet 13b of the injection hole 13, the greater the degree of diffusion of the extinguishing material, and the lower the injection pressure, the smaller the degree of diffusion of the extinguishing material, the injection hole 13 By setting the spraying direction of the fire extinguishing angle of the extinguishing material can be adjusted, thereby determining the extinguishing range of the fire extinguisher in case of fire.

The guide hole 14 has a diameter larger than that of the injection hole 13, and is formed in a straight line in series with the injection outlet 13b of the injection hole 13. The diameter of the guide hole 14 and the length in the injection direction are shown. By setting so as not to affect the injection angle of the extinguishing material sprayed from the injection hole 13, it is preferable to prevent the extinguishing material from being sprayed and to block the extinguishing material scattering out of the spraying angle. .

3 and 4 illustrate an embodiment in which the above-described injection nozzle 10 of the present invention is applied to a spray extinguisher. As illustrated, the spray extinguisher is sealed to store and compress a extinguishing material consisting of gas or liquid. The compression container 20, the opening and closing valve 30 is installed through the top of the compression container 20 so as to be kept airtight, and the opening and closing operation of the opening and closing valve 30 in the upper portion of the compression container 20 It consists of a push button 40 coupled to the, and the injection nozzle 10 of the present invention assembled to the push button 40.

The on-off valve 30 is known as in the conventional configuration, the inlet pipe 31 is located in the compression vessel 20 is connected to the lower portion, the upper portion is coupled to the push button 40, the injection nozzle 10 The discharge pipe 32 which communicates with is provided. Therefore, when the discharge pipe 32 is lowered by pressing the push button 40, the opening / closing valve 30 is opened so that the extinguishing material in the compression container 20 is discharged through the inlet pipe 31 and the discharge pipe 32. Extinguishing material can be injected through the injection nozzle 10 of the push button 40, and when the push button 40 is released, the discharge pipe 32 is returned to its original position by the elastic restoring force of the spring provided in the opening / closing valve 30. By closing the on-off valve 30 again to stop the injection of the extinguishing material.

The push button 40 is formed with an assembly hole 41 to which the discharge pipe 32 of the on-off valve 30 is connected, the coupling hole 42 is coupled to the injection nozzle 10 is formed on one side, A passage 43 is formed between the assembly hole 41 and the coupling hole 42 so that the injection nozzle is coupled to the discharge tube 32 and the coupling hole 42 of the opening / closing valve 30 connected to the assembly hole 41. The compression hole 12 of 10 is made to communicate.

In this case, although the injection nozzle 10 and the push button 40 may be manufactured integrally by plastic injection molding, it is preferable that the injection nozzles 10 and the push button 40 are made separately by plastic injection molding, and then combined with each other to make them easier to manufacture. .

In addition, the combination of the injection nozzle 10 and the push button 40, the coupling hole 42 of the push button 40 is formed to be slightly smaller than the outer peripheral surface of the injection nozzle 10 to be fixed by mutual interference fit Also, the injection nozzle 10 is first plastic injection molded, and then immediately after the push button 40 is plastic injection molded, the outer side of the injection nozzle 10 in the engaging hole 42 of the push button 40 can be formed. The outer circumferential surface of the injection nozzle 10 and the coupling hole 42 may be brought into close contact with and fixed to each other by shrinkage of the push button 40 due to the cooling of the push button 40. In addition, the outer circumferential surface of the injection nozzle 10 fitted into the engaging hole 42 of the push button 40 is formed to have a diameter smaller than the outer circumferential surface protruding from the push button 40 to form the stepped portion 11a, thereby causing the injection nozzle. It is desirable to keep the insertion depth of (10) constant at all times.

Referring to the operation of the spray nozzle for the spray extinguisher 10 and the spray extinguisher using the same according to the present invention having such a configuration as follows. 3 and 4, the spray fire extinguisher, by inserting the injection nozzle 10 into the coupling hole 42 of the push button 40, the opening and closing valve 30 protruding above the compression vessel 20 The discharge tube 32 of the on-off valve 30 and the injection nozzle through the passage 43 inside the push button 40 by assembling the discharge tube 32 of the push button 40 into the assembly hole 41 of the push button 40. The compression hole 12 of 10 is in communication with each other, and the gas or liquid extinguishing material is compressed and stored at a predetermined pressure in the compression container 20.

Such a spray fire extinguisher is provided in a home or a vehicle to suppress or suppress an initial fire by a simple operation of pressing the push button 40 when a fire occurs. When the push button 40 is pressed, the discharge pipe 31 is pressed. Since the opening and closing valve 30 is lowered together, the extinguishing material stored in the compression container 20 is discharged to the discharge pipe 32 through the inlet pipe 31 by the pressure in the compression container 20, and then the push button. It flows into the compression hole 12 of the injection nozzle 10 through the passage 43 of 40 and is injected through the injection hole 13.

At this time, the extinguishing material introduced into the inlet 12a of the compression hole 12 formed in the injection nozzle 10 of the present invention passes through the compression hole 12 formed in the shape of a cone whose diameter decreases gradually toward the outlet 12b. Since it is compressed in the flow process, the pressure at the outlet 12b side is greater than the inlet 12a of the compression hole 12, whereby the extinguishing material can be injected at a larger injection pressure than the pressure in the compression vessel 20. Therefore, it is possible to improve the extinguishing performance during fire suppression.

In addition, even when the pressure in the compression container 20 is weakened due to the use of a fire extinguisher, since the injection pressure of the extinguishing material can be further increased by the compression hole 12 of the injection nozzle 10, the extinguishing performance rapidly decreases. In particular, in the case of a high-density liquid extinguishing material, the pressure tends to be lower than the pressure in the compression vessel 20 when injected through the injection nozzle 10. The compression hole of the injection nozzle 10 (12) can increase the pressure to compensate for this can improve the extinguishing performance even when using a liquid extinguishing material.

In the injection nozzle 10 of the present invention, the injection amount and the injection angle of the extinguishing material are determined by the diameter and the injection direction length of the linear injection hole 13 formed in series with the outlet 12b of the compression hole 12. According to the type of extinguishing material, the diameter and the length of the spraying direction are set at the time of forming the injection hole 13 so that the extinguishing performance is optimal.

For example, when the extinguishing material is a gas, since the density is relatively lower than that of the liquid and the injection pressure is high and the injection angle is large, the extinguishing performance may be reduced due to the wide extinguishing range. Increasing the amount of injection increases, and lengthening the length of the injection direction of the injection hole 13 to reduce the injection angle can be configured to the optimum conditions to narrow the extinguishing range to improve the extinguishing performance.

In addition, in the case where the extinguishing substance is a liquid, since the density is higher than the gas, the injection pressure is low and the injection angle is small, the extinguishing performance may be reduced due to the narrow extinguishing range. By increasing the injection pressure and shortening the length of the injection direction of the injection hole 13 to increase the injection angle, it is possible to configure the optimum conditions in which the extinguishing performance is improved by increasing the extinguishing range.

In this way, the injection nozzle 10 of the present invention can further increase the injection pressure of the extinguishing material by the compression hole 12, and the injection amount and the injection of the extinguishing material by setting the diameter and the injection direction length of the injection hole 13 Since the angle can be added or lowered, it is possible to maintain the extinguishing performance at the optimum conditions for extinguishing the fire early depending on the type of extinguishing material.

The embodiments described so far are merely illustrative of the preferred embodiments of the present invention, and the scope of the present invention is not limited to the described embodiments, and those skilled in the art within the technical spirit and claims of the present invention. It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

1 is a cross-sectional view showing a conventional spray fire extinguisher.

Figure 2 is a partially cutaway perspective view showing a spray nozzle for a spray fire extinguisher according to the present invention.

Figure 3 is a cross-sectional view showing the decomposition of the spray extinguisher applied to the injection nozzle of the present invention.

Figure 4 is a cross-sectional view showing the assembled assembly of the spray nozzle of the present invention spray nozzle.

<Description of the symbols for the main parts of the drawings>

10: spray nozzle 11: nozzle body

12: compression hole 12a: inlet

12b: exit 13: injection hole

13a: jet inlet 13b: jet inlet

14: guide hole 20: compression container

30: on-off valve 40: push button

43: passage

Claims (5)

A conical compression hole having a smaller diameter of the outlet than the diameter of the inlet through which the extinguishing material is introduced; It is made by forming an injection hole in the nozzle body having a jet inlet and a jet outlet having the same diameter as the outlet of the compression hole, the injection inlet is formed in a straight line in succession to the outlet of the compression hole, And the compression hole and the injection hole are arranged in a straight line on the center line of the nozzle body. The nozzle body of claim 1, further comprising a guide hole having a diameter larger than that of the injection hole and formed in a straight line in series with the injection outlet of the injection hole. The guide hole and the injection hole is spray nozzle for a fire extinguisher, characterized in that arranged in a straight line on the center line of the nozzle body. A compression vessel sealed to store and compress the extinguishing material, an on / off valve installed to be hermetically sealed at the upper end of the compression vessel, and positioned to be positioned above the compression vessel and coupled to open and close the opening / closing valve, In the spray extinguisher consisting of a push button protruding injection nozzle, The injection nozzle has a conical compression hole formed with a smaller diameter of the outlet from which the extinguishing material discharged from the on-off valve is introduced through the passage in the push button and is discharged from the diameter of the inlet, and the same diameter as the outlet of the compression hole. It has a spray inlet and a spray outlet, the injection inlet is formed at the outlet of the compression hole consecutively formed in the nozzle body formed in a straight line, the compression hole and the injection hole is arranged in a straight line on the center line of the nozzle body Spray extinguisher. 4. The nozzle body of claim 3, wherein the nozzle body further comprises a guide hole having a diameter larger than that of the injection hole and formed in a straight line in series with the injection outlet of the injection hole, wherein the guide hole and the injection hole are in a straight line on the center line of the nozzle body. Spray fire extinguisher, characterized in that arranged. [5] The spray fire extinguisher according to claim 3 or 4, wherein the injection nozzle and the push button are separately formed, and the push button forms a coupling hole to fix the injection nozzle to the coupling hole. .

Images