KR100562482B1 - A pulverizing nozzle - Google Patents

Abstract

The present invention relates to a multi-directional spray nozzle which is installed in a fire extinguishing facility for initial fire extinguishing in the event of fire and can be extinguished initially using a very small amount of water and can be used for both internal and external mixing. In the spray nozzle which is connected to the fire extinguishing equipment installed in the building for spraying by mixing gas and water, it has a donut shape, the thread is formed on the inner wall surface and the water guide groove is formed on the lower surface by the width of the sealing material Wow; The cap formed by protruding the upper portion of the body coupling portion screwed to the body, the water inlet formed on one side of the cap is supplied with water, the donut-shaped cap on the lower side of the water guide groove to be connected to the communication hole through the water inlet A plurality of nozzle chambers formed in communication with a groove formed on the upper surface, a gas inlet formed at a center protruding from the upper portion of the cap, a gas guide flow path formed in an oblique direction on a lower surface of the gas inlet, and a gas in the nozzle chamber. Externally mixed intermediate nozzle unit, which is screwed to the nozzle unit coupling portion to the guide flow path, and the externally mixed type which is inserted into the tip of the externally mixed intermediate nozzle unit and screwed to the nozzle chamber to spray water through the water spray nozzle Characterized in that the nozzle cover unit.

Spray nozzle, fire, fire fighting, internal mixing, external mixing, combined use

Description

A pulverizing nozzle

1 is a perspective view of a multi-directional spray nozzle of the present invention.

Figure 2 is an exploded perspective view of the multi-directional spray nozzle of the present invention.

Figure 3 is a vertical cross-sectional view when using the multi-directional spray nozzle of the present invention in an external mixing type.

Figure 4 is a vertical cross-sectional view when using the multi-directional spray nozzles of the present invention in an internal mixing type.

5 is a vertical cross-sectional view when using the multi-directional spray nozzle of the present invention in an internally mixed type of another embodiment.

Figure 6 is a cross-sectional view of the external mixing intermediate nozzle unit used in the multi-directional spray nozzle of the present invention.

Figure 7 is a cross-sectional view of the external mixing nozzle cover unit of the present invention.

Figure 8 is a cross-sectional view of the internal mixing nozzle cover unit of the present invention.

9 is a cross-sectional view of the internally mixed nozzle unit of another embodiment of the present invention.

10 is a cross-sectional view taken along the line A-A of FIG.

 <Brief description of symbols for the main parts of the drawings>

10: body 11: body coupling part

12: donut groove 13: gas inlet

14 gas guide flow path 15 sealing material

16: water inlet 17: communication hole

18: water guide flow path 19: cover coupling portion

20: cap 21: nozzle unit coupling portion

22: nozzle chamber 23, 28: mixing chamber

24: Externally mixed nozzle unit 25: Externally mixed nozzle cover unit

26: internal mixing nozzle cover unit 27: mixed liquid spray nozzle

29: orifice 30: gas spray nozzle

31: water spray nozzle 32: water communication hole

33: bulkhead 34: home

35 dispersion chamber 36 water spray chamber

37: water guide groove 38: sealing fixing groove

39: cylindrical wall surface 40: inclined surface

41: gas supply vent 42: water spray guide

43: mixed liquid spray nozzle 44: internal mixing nozzle unit

45: mixing chamber 46: water communication hall

47: water dispersion chamber 48: cylindrical wall surface

The present invention relates to a mist spray nozzle used in a fire extinguishing system, and more particularly, it is installed in a fire extinguishing system for initial extinguishing in case of a fire, and thus it is possible to extinguish a fire early by using a very small amount of water and nitrogen gas. The present invention relates to a multi-directional spray nozzle configured to be used for both internal mixing and external mixing.

In general, when a fire occurs, fire extinguishing is carried out by fire trucks, but large buildings, subways, department stores, buildings, etc., are equipped with fire extinguishing equipment as a fire safety device for initial fire extinguishing.

For this early evolution, there is a method using a sprinkler and a water spraying facility, which are equipped with a detection sensor that can detect a fire in a building interior and a spray nozzle for injecting extinguishing fluid for fire extinguishing. The injection nozzle is connected to the central control unit by a supply pipe, and the extinguishing liquid necessary for extinguishing the fire is injected and supplied.

The extinguishing process of the fire extinguishing equipment currently used is that if the heat and smoke generated by the fire are detected by the sensor installed in each indoor ceiling, the fire report is applied to the central control unit and the extinguishing liquid supplied from the central control unit is supplied. Evolution occurs by the process of spraying through the spray nozzle.

In the case of the injection nozzle used in the conventional fire extinguishing equipment, the extinguishing liquid is sprayed with a certain pressure, but the fire extinguishing range for fire extinguishing is not relatively wide and is concentrated on a part, so that the extinguishing performance is poor. Fire is initially extinguished when water is sprayed, but the water injected causes secondary damage, such as flooding, electric accidents, damage to precision instruments, and damage to electronic components.

In the places where such secondary damage is large, computer room, communication equipment room, control room, library, cable room, test room, computer room, cultural property facility, dangerous goods facility, electric facility, ship, etc. Fire extinguishing method using water is required.

In the case of spray nozzle spraying very small amount of water by mist spraying method, it is to extinguish fire by penetrating power and air blocking force of micro water particles by spraying by injecting water into micro particles. When extinguishing, micro water particles can instantly take much more heat than water because they instantly change phase into steam, and in the fire part, the air pressure decreases due to lack of oxygen. It is possible to penetrate naturally into the low pressure fire.

In addition, it is surrounded by a lot of fine water particles surrounding the fire part to block the inflow of air from the outside, and at the same time it is also possible to obtain the effect of collecting the liquid soot or dust and settle down to the floor.

To this end, the role of the nozzle to determine the particle size of the water is very important, but in the case of the conventionally used nozzle, by attaching a separate rotor shape inside the nozzle, or by forming a spiral thin flow path by generating a vortex Most of the cases generate fine water particles.

Since these nozzles only target water, it is difficult to control the size of the water particles as necessary for extinguishing the fire, and due to the various components for vortex generation, the earth resistance is reduced as the pipe resistance increases, so that the proper water particle size can be obtained. There have been many problems, such as missing.

Therefore, a method of using a mixture of the two fluids was developed as a method for using a very small amount of water, that is, it occupies about 78% in the atmosphere, and water, which is a colorless, tasteless, and odorless incombustible gas, nitrogen and a fire infiltrating liquid mixture. It is intended to ensure stability by mixing and spraying.

In order to mix these two fluids and spray them in the form of mist spray, it is necessary to develop a nozzle in which the two fluids are mixed well and discharged in the form of mist spray.

However, in the method of mixing these two fluids, there are cases where the mixed liquid is sprayed by mixing inside the nozzle body, and when the mixed liquid is sprayed while mixing outside the nozzle body.

In the case of the external mixing type, the spray amount of each fluid can be easily adjusted by adjusting the discharge amount of each storage tank to easily change the situation, and the internal mixing type is mixed in advance by setting the most ideal amount inside the nozzle. Since it is difficult to change the discharge amount, but it has a great effect on the fire suppression under the set circumstances. As described above, there are advantages and disadvantages of the two methods, and it is necessary to replace the nozzle according to the situation and conditions, but there is a problem that it is difficult to separately provide an expensive spray nozzle.

The present invention has been made in order to solve the above-described problems, and can be easily replaced by the nozzle of the external mixing and the internal mixing type to mix the two fluids outside the nozzle or mixed inside the nozzle according to the expected change in the fire situation It is an object of the present invention to provide a multi-directional spray nozzle which is manufactured in a unit shape and can be easily replaced or repaired when a nozzle is clogged or a problem occurs.

The present invention provides a spray nozzle of a fire extinguishing system installed in a building for fire extinguishing in order to achieve the above object, the body is made of a donut shape and the thread is formed on the inner wall surface; The body coupling part formed with a screw thread to be coupled to the body is formed to protrude in the upper center, a plurality of nozzle chambers are formed at the same interval at the lower side, to form a water inlet on one side wall, the donut on the upper surface to communicate with the water inlet Forming a groove, and forming a plurality of water guide flow path on the lower surface of the donut groove to communicate with the nozzle chamber, a gas inlet is formed in the center of the body coupling portion, a plurality of gas guide flow path to the lower side of the gas inlet A cap is formed to communicate with the nozzle chamber, and a nozzle unit coupling portion is formed at an upper center of the nozzle chamber and a cover coupling portion is formed at a lower portion thereof; And an internally mixed type and an externally mixed type nozzle unit configured to be detachably attached to the nozzle chamber to form another flow path. The internally mixed type nozzle may be used as an internally mixed type and an externally mixed type according to the type of nozzle unit selected. The unit is composed of an internal mixing nozzle cover unit, a screw thread is formed around the upper side is coupled to the cover coupling portion, and forms an orifice narrowing along the inclined surface formed in the upper inner center, and the mixing chamber in communication with the orifice And a mixed liquid spray nozzle formed below the mixing chamber, and the internal mixed nozzle unit of another embodiment of the internal mixed nozzle unit has a thread formed on the lower sidewall for engaging with a screw thread of the lower side of the nozzle chamber. The cylindrical wall surface is formed, the nozzle unit is formed on top of the cylindrical wall surface A screw thread is formed to be coupled to a portion, and a mixing chamber is formed at the inner center of the body to communicate with the gas guide passage, and a plurality of water communication holes are formed at one side of the cylindrical wall to communicate with the mixing chamber. A mixed liquid spray nozzle is formed at the bottom of the external mixed nozzle unit, and the external mixed intermediate nozzle unit and the external mixed nozzle cover unit are configured, and the external mixed intermediate nozzle unit has a screw thread formed so that the upper part is coupled to the nozzle unit coupling part. A gas supply hole is formed in the center of the body so as to communicate with the gas guide passage, a gas spray nozzle is formed at the lower end of the gas supply hole, a partition wall is formed in the middle of the outer wall, and a plurality of water communication holes are formed in the partition wall. The hole is formed, the outer wall surface of the gas spray nozzle is a water spray guide portion, the outer mixed nozzle cover unit is the side The screw thread is formed to be coupled to the cover coupling portion, the inclined surface is narrowed in the center thereof, the cylindrical wall surface is formed, the cylindrical wall surface is formed larger than the outer diameter of the water spray guide portion, the gap is a water spray nozzle, the external mixing type A groove is formed above the partition wall of the intermediate nozzle unit, and a dispersion chamber is formed between the groove, the partition wall, and the nozzle chamber so that the water supplied from the water guide flow path circulates through the dispersion chamber to form a vortex, and a sealing material on the upper surface of the cap. Forming the fixing grooves on both sides of the donut-shaped groove, install a sealing material in the sealing material fixing groove to prevent the leakage of water, multi-direction characterized in that to form a water guide groove as much as the width between the sealing material on the lower surface of the body Provide a spray nozzle.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

The multi-directional spray nozzle of the present invention is largely divided into a body 10, a cap 20 and a nozzle unit.

The body 10 is formed in a donut shape as a whole, and a screw thread is formed on an inner wall thereof to be fastened and fixed with a screw thread formed on the body coupling part 11 of the cap 20, and the lower surface of the body 10 will be described later. The water guide groove 37 is formed low in the shape of a donut so that the shielding material 15 is located at both ends.

The cap 20 has a plurality of nozzle chambers 22 formed at a lower side thereof, and a nozzle unit coupling part 21 is formed at an upper portion of the nozzle chamber 22. The nozzle unit coupling portion 21 is formed with a screw thread is fixed to the screw thread of the upper end of the external mixing-type intermediate nozzle unit 24 to be described later. When the external mixed intermediate nozzle unit 24 is not coupled, it is just in that state. Then, a screw thread, which is a nozzle unit coupling part 21, is formed at a lower outlet portion of the nozzle chamber 22.

The nozzle unit coupling portion 21 communicates with the gas inlet 13 and the gas guide passage 14 formed at the upper center of the cap 20, and the gas guide passage 14 is connected to the nozzle chamber 22. It is formed by the number.

A donut-shaped groove 12 is formed on an upper surface of the cap 20, and a sealing material fixing groove 38 is formed at both sides of the donut-shaped groove 12, and a sealing material 5 fixed to the sealing material fixing groove 38. When the body 10 is fastened to prevent the leakage of water flowing along the donut groove 12.

A water injection hole 16 is formed at one side of the cap 20, and a communication hole 17 is formed to communicate with the donut groove 12, and one side of the donut groove 12 and the nozzle chamber 22. Water guide passage 18 is formed to communicate with the upper one side of the).

Looking at the external mixed intermediate nozzle unit 24 and the external mixed nozzle cover unit 25 constituting the external mixed nozzle in the state that the cap 20 and the body 10 as described above are as follows.

The external mixing-type intermediate nozzle unit 24 has a gas supply hole 41 formed at the inner center thereof, and a gas spray nozzle 30 is formed at the lower end of the gas supply hole 41. A circular partition 33 is formed around the outer circumference of the outer mixed intermediate nozzle unit 24, and a plurality of water communication holes 32 are formed through the partition 33. A groove 34 is formed above the partition 33 and water flows along the periphery of the partition 34 and enters the water spray chamber 36 to be described later through the water communication hole 32. Water spray guide portion 42 is formed on the outer wall surface of the gas spray nozzle 30 to the lower side of the partition 33, the cylindrical wall surface of the water spray guide portion 42 and the external mixed nozzle cover unit 25 to be described later ( The gap between 39 becomes the water spray nozzle 31.

The external mixed nozzle cover unit 25 is formed with a screw thread to be coupled to the cover coupling portion 19 on the side wall, the inclined surface 40 in the center thereof is narrowed and the cylindrical wall surface 39 is formed, the cylindrical wall surface ( 39 is larger than the outer diameter of the water spray guide portion 42.

When the external mixed nozzle unit 24 is coupled to the nozzle unit coupling part 21 of the nozzle chamber 22 and the external mixed nozzle cover unit 25 is fastened to the cover coupling part 19, the external mixed nozzle is formed. Is completed.

In the case of the externally mixed nozzle, the nitrogen gas enters the gas supply hole 41 through the gas inlet 13 through the gas inlet 13 and through the gas spray nozzle 30 which is significantly smaller than the gas supply hole 41. Sprayed. Water enters the donut-shaped groove 12 through the communication hole 17 at the water inlet 16 and rotates along the donut-shaped groove 12, and each water guide passage 18 formed at the lower side of the donut-shaped groove 12. Rotate and rotate along the dispersion chamber 35 formed by the partition 33 and the groove 34 of the nozzle chamber 22 and the external mixing intermediate nozzle unit 24 along the. Then, the water spray chamber 36 enters through the water communication hole 32 formed in the partition 33 and is sprayed through the water spray nozzle 31 described above in the water spray chamber 36.

The sprayed water and nitrogen gas are mixed outside the nozzle to surround the fire and spray the mist.

The internal mixed nozzle is as follows.

When the internal mixed nozzle cover unit 26 is fastened and fixed to the cover coupling part 19, the internal mixed nozzle is completed, and the internal mixed nozzle cover unit 26 has a thread formed on its upper side wall, and has an inner center. An orifice 29 narrowing along the inclined surface is formed, and the mixing chamber 28 is formed in succession with the orifice 29. The mixing chamber 28 is a cylindrical chamber wider than the diameter of the orifice 29, in which water and nitrogen gas are mixed again to form a vortex. The space between the nozzle chamber 22 and the lower surface of the internal mixing nozzle cover unit 26 becomes the mixing chamber 28 and is supplied through the water and gas guide passage 14 supplied through the water guide passage 18. Nitrogen gas is mixed to become a mixed liquid, and the mixture is completely mixed in the mixing chamber 28 through the orifice and mist sprayed through the mixed liquid spray nozzle 27.

Looking at another embodiment of the internally mixed nozzle, it is composed of the internally mixed nozzle unit 44 coupled to the nozzle chamber 22 as shown in Figure 9 and the detailed configuration is as follows.

Threads are formed on the lower sidewalls of the internally mixed nozzle unit 44 so as to be coupled to the threads of the nozzle chamber 22, and the cylindrical wall surface 48 is formed to be narrower than the diameter of the lower portion.

A thread is formed at an upper portion of the cylindrical wall surface 48 to be coupled to a thread formed at the center of the upper surface of the nozzle chamber 22.

The space between the cylindrical wall surface 48 and the wall surface of the nozzle chamber 22 is a water dispersion chamber 47 in which water supplied through the water guide flow passage 18 rotates around the cylindrical wall surface 48.

A mixing chamber 45 is formed to communicate with the gas guiding passage 14 toward the inner center of the body of the internal mixing nozzle unit 44, and water communication is performed such that the cylindrical wall surface 48 and the mixing chamber 45 communicate with each other. A plurality of holes 46 are formed at equal intervals around one side of the cylindrical wall surface 48.

When the internal mixing nozzle unit 44 is coupled to the nozzle chamber 22, a sealing material such as a rubber ring is placed at each threaded portion so that fluid such as water and nitrogen gas does not leak.

The lower end of the mixing chamber 45 forms a mixed liquid spray nozzle 43 smaller than the diameter of the mixing chamber 45 to spray the nitrogen gas and water mixed in the mixing chamber 45.

The gas used above occupies about 78% in the air, and in principle, nitrogen is used as colorless, tasteless, and odorless incombustible gas.

In the present invention, simply changing the inlet of water and nitrogen gas falls within the protection scope of the present invention.

As described above, the present invention can selectively use an external mixed nozzle and an internal mixed nozzle having respective advantages in the nozzle chamber of the cap of the present invention according to the situation, and are manufactured in a unit form to manage, repair and replace the nozzle. It is easy, there is an effect that can be ideal mist sprayed by the flow path formed therein.

Claims (7)

In the spray nozzle which is connected to the fire extinguishing equipment installed in the building for the fire extinguishing, to mix and spray the gas and water, A body 10 having a donut shape and a thread formed on an inner wall thereof, and a water guide groove 37 formed on a lower surface of the sealing member 15 by a width between the sealing members 15; A cap 20 protruding to form a body coupling portion 11 screwed to the body 10 and a water inlet 16 formed at one side of the cap 20 to supply water, and the water A groove 12 formed on the cap 20 in a donut shape in a lower portion of the water guide groove 37 so as to be connected to the inlet 16 through the communication hole 17, and formed in the center protruding from the upper portion of the cap 20. A plurality of nozzle chambers 22 formed in communication with a gas inlet 13 to be formed, a gas guide passage 14 formed in an oblique direction on a lower surface of the gas inlet 13, and a gas in the nozzle chamber 22. Externally mixed intermediate nozzle unit 24, which is screwed into the guide passage 14 so that gas is sprayed onto the nozzle unit coupling part 21, and inserted into the front end of the externally mixed intermediate nozzle unit 24 while being sprayed with water spray nozzles 31. Multi-directional, characterized in that consisting of the external mixing nozzle cover unit 25 is screwed to the nozzle chamber to spray water through the) No nozzle. The method of claim 1, The external mixing type intermediate nozzle unit 24 has an upper portion coupled to the nozzle unit coupling portion 21 with a screw thread, and a gas supply through-hole 41 is formed in the center of the body so as to communicate with the gas guide passage 14. A gas spray nozzle 30 is formed at a lower end of the supply hole 41, a partition wall 33 is formed at an intermediate portion of the outer wall surface, and a plurality of water communication holes 32 are formed in the partition wall 33. The outer wall surface of the gas spray nozzle (30) is a multi-directional spray nozzle, characterized in that formed to be a water spray guide (42). The method of claim 1, The external mixing nozzle cover unit 25 is inserted into the water spray guide portion 42 is coupled to the cover coupling portion 19 by a screw thread, the inclined surface 40 and the narrow cylindrical wall surface 39 is formed in the center thereof, The cylindrical wall surface 39 is formed larger than the outer diameter of the water spray guide portion 42, the gap is a multi-directional spray nozzle, characterized in that the water spray nozzle (31). The method of claim 1, The externally mixed nozzle cover unit 25 is provided in front of the externally mixed nozzle cover unit 25 coupled to the cover engaging portion 19 of the cap 20 and the orifice 29 of the externally mixed nozzle cover unit 25. Multi-directional spray nozzle, characterized in that the internal mixing nozzle cover unit 26 is formed by screwing the mixture liquid spray nozzle 27 is sprayed through the mixing chamber 28 formed in communication. The method according to claim 1 or 2, The external mixing type intermediate nozzle unit 24 has a groove 34 so that the dispersion chamber 35 is formed in the nozzle chamber 22 above the partition 33 so that the water supplied from the water guide passage 18 forms a vortex. Multi-directional spray nozzle, characterized in that formed. delete The method of claim 1, The nozzle chamber 22 is screwed to the nozzle chamber 22 on the lower side wall, a plurality of water communication holes 46 penetrating through the cylindrical cylindrical wall surface 48 on the upper side, and the water communication hole 46 In communication with the gas guide passage 14 in the hollow portion of the cylindrical wall surface 48 is formed with a mixing chamber 45 for mixing the gas and water, the mixed liquid is sprayed mixed liquid spray nozzle on the front of the mixing chamber 45 A multi-directional spray nozzle, characterized in that the internally mixed nozzle unit 44 is formed to be sprayed through the 43 is screwed.

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