KR200341246Y1 - A pulverizing nozzle for two fluid mixing in - Google Patents

Abstract

The present invention relates to a mist spray nozzle used in a fire extinguishing system, and more specifically, an internal mixed two-fluid spray designed to be extinguished initially using a small amount of water by installing in an extinguishing facility for initial fire extinguishing. It relates to a nozzle, the body for forming a first fluid inlet and a second fluid inlet on the outer side, a cylindrical wall surface 19 on the inner side and a step 37 on the upper end thereof, and a thread formed on the lower outer wall surface 10; A screw thread engaged with the screw thread of the body 10 is formed on the inner wall, a spray part 21 is formed at the center of the outer bottom, a semicircular groove 46 is formed at the center of the inner part, and A plurality of nozzle installation holes 26 formed at predetermined intervals on the circumference, and the nozzle installation holes 26 communicate with the semi-circular groove 25 and the through hole 27; A separate nozzle 22 inserted into the nozzle installation hole 26 of the cap 20 and having a spray nozzle 23 formed therein; It has a substantially cylindrical body, a cylindrical first fluid inlet chamber 34 is formed, and communicates the cylindrical groove 31 with the first fluid through-hole 32, and communicates with the cylindrical groove 31 around the outer wall surface Characterized in that consisting of; a central separator (30) to form a plurality of through holes (36).

Description

A pulverizing nozzle for two fluid mixing in}

The present invention relates to a mist spray nozzle used in a fire extinguishing system, and more specifically, an internal mixed two-fluid spray designed to be extinguished initially using a small amount of water by installing in an extinguishing facility for initial fire extinguishing. Relates to a nozzle.

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 being used is fire extinguishing liquid supplied by the supply pipe from the central control unit at the same time as the fire report is applied to the central control unit when heat and smoke generated by the fire are detected by a sensor installed in each indoor ceiling. Jinhae is made by the process of spraying through this injection nozzle.

In the case of the spray 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 the extinguishing performance is poor. Fire is initially extinguished during spraying, but the sprayed water causes secondary damage, such as flooding, electrical 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, kitchen room, test room, computer room, cultural property facility, dangerous goods facility, electric facility, ship, etc. Fire extinguishing method using water is required.

In order to use a very small amount of water, a method of mixing the two fluids has been developed. That is, it occupies about 78% in the atmosphere, and mixes nitrogen, a colorless, tasteless, and odorless non-combustible gas, with water, a digestive infiltrate mixture. By doing so, we want to secure stability.

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.

The present invention is designed to solve the problems as described above, in the spray nozzle used in the fire extinguishing equipment to increase the high extinguishing performance with a small amount of extinguishing fluid and the two fluids are well mixed and sprayed to ensure stability and reliability It is intended to provide an internally mixed two-fluid spray nozzle that can be installed at a location vulnerable to moisture penetration so as not to be damaged by moisture, and to easily select a location to be installed by varying the fluid inlet according to the installation location. have.

The present invention is a spray nozzle of a fire extinguishing system installed in a building for fire extinguishing to achieve the above object, the first fluid inlet and the second fluid inlet is formed on one side, the cylindrical wall surface is formed on the inside A body having a step on the upper end and forming a thread on the lower outer wall; A screw thread engaged with the screw thread of the body is formed on the inner wall surface, a spray part is formed at the center of the outer bottom, a semicircular groove is formed at the inner center, and a plurality of nozzle installation holes are formed at regular intervals around the spray part, The nozzle installation hole cap is in communication with the semi-circular groove through the hole; A split nozzle installed in the nozzle installation hole of the cap and having a mixed liquid spray chamber formed at one end thereof and having a plurality of spray nozzles at the other end thereof; It has a substantially cylindrical body, and forms a cylindrical first fluid inlet chamber to the inside of the upper portion, and forms a first fluid through the center of the lower surface of the first fluid inlet chamber, a cylindrical groove at the bottom of the first fluid through hole It is formed to communicate with the first fluid inlet chamber, the central separation port for forming a plurality of through-holes communicated with the cylindrical groove around the outer wall surface; provides an internal mixed-type two-fluid spray nozzle comprising a.

1 is an external perspective view showing the present invention.

Figure 2 is an exploded perspective view showing an internal mixed two-fluid spray nozzle of the present invention.

Figure 3 is a vertical cross-sectional view showing an internal mixed two-fluid spray nozzle of the present invention.

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

10 body 11: first fluid top surface inlet

12: first fluid side inlet 13: second fluid side inlet

14: second fluid top surface inlet 15: first fluid injection hole

16: second fluid injection hole 17, 18: connection hole

19: cylindrical wall surface 20: cap

21: spraying part 22: removable nozzle

23: spray nozzle 24: sealing material

25: semi-circular groove 26: nozzle installation hole

27: through hole 28: mixed liquid spray room

30: central separator 31: cylindrical groove

32: first fluid through 33: second fluid through

34: first fluid injection chamber 35: fluid mixing chamber

36: second fluid dispersion chamber 37: step

38: sealing material 39: sealing material

40, 42: blocking bolt 41, 43: wrench groove

Referring to the configuration of the present invention in detail with reference to the accompanying drawings as follows.

The spray nozzle of the fire extinguishing system installed in the building for fire extinguishing in this paper is divided into three parts. First, since the spray nozzle is mostly sprayed from the top to the bottom, there is a body 10 fixed to the ceiling, and the two fluids inserted into the body 10 and separated and injected into the body 10 are mixed. There is a central separation port 30 having a main structure, it is composed of a cap 20 is formed in the spray nozzle which is fixed to be engaged with the body 10 and sprayed downward.

In the present invention, the inlet of the first fluid and the second fluid is separately formed one by one so that the body 10 can be fixed to the wall according to the structure as well as the ceiling.

The body 10 has a lower opening, and forms a first fluid upper surface injection hole 11 at an upper side thereof, and is positioned on the same vertical line as the first fluid upper surface injection hole 11 and located at a side of the body 10. The first fluid side inlet 12 is formed to be positioned.

A second fluid upper surface inlet 14 is formed on the other side of the upper portion of the body 10, and the second fluid side surface is positioned on the same vertical line as the second fluid upper surface inlet 14 and located on the side of the body 10. The injection hole 13 is formed.

The first fluid top surface inlet 11, the first fluid side inlet 12, the second fluid side inlet 13, and the wall of the second fluid top inlet 14 are formed with threads so that the fluid supply pipe is screwed and fastened. desirable.

The first fluid upper surface inlet 11 and the first fluid side inlet 12 for supplying the first fluid may be selected according to the installed position, and the inlet not selected may be selected from the outside by the blocking bolt 40. Is blocked. The center of the upper surface of the blocking bolt 40 forms a wrench groove 41 to tighten with a wrench.

In addition, the second fluid upper surface inlet 14 and the second fluid side inlet 13 for supplying the second fluid may be selected according to the installed position, and the inlet which is not selected may be blocked from the outside by the blocking bolt 42. do. A wrench groove 43 for tightening with a wrench is formed in the center of the upper surface of the blocking bolt 42.

The first fluid side inlet 12 is formed at one side of the first fluid top inlet 11 through a connection hole 17, and the second fluid top inlet 14 is formed on a cylindrical wall surface 19. It communicates with the 2nd fluid injection hole 16 in the space which consists of the step | step 37. The second fluid side inlet 13 is connected to the second fluid injection hole 16 through a connection hole 18.

The cap 20 which is coupled to the body 10 and sealed is formed with a screw thread engaged with the thread of the body 10 on the inner wall, and forms a spraying portion 21 at the center of the outer lower portion. A semicircular groove 25 having a semicircular cross section is formed at the center of the inner lower surface, and a disc shaped groove is formed in which a lower surface of the central separator 30 to be described below is fixed to the semicircular groove 25.

The spray unit 21 protrudes downward from the ceiling, and a plurality of nozzle installation holes 26 are formed at the same inclined surface around the spray unit 21 at equal intervals. The inner wall surface of the nozzle mounting hole 26 is formed with a screw thread.

A small detachable nozzle 22 is inserted into and fixed to the nozzle mounting hole 26, and a screw thread is formed at a coupling portion of the detachable nozzle 22 to be coupled to and fixed to a screw thread of the nozzle mounting hole 26. The sealing member 24 is inserted between the end of the split nozzle 22 and the nozzle mounting hole 26 to prevent leakage.

Inside the split nozzle 22, a mixed liquid spray chamber 28 is formed in a state just before the mixed liquid containing the first fluid and the second fluid enters and is sprayed, and the mixed liquid spray chamber 28 is a through hole 27. It communicates with the semi-circular groove 25 through. The mixed liquid spray chamber 28 is formed in the space adjacent to the through hole 27 is a large diameter, the portion adjacent to the spray nozzle 23 is formed in a narrow diameter space.

The mixed liquid supplied from the through hole 27 is sent to the mixed liquid spray chamber 28 in a narrow space through the mixed liquid spray chamber 28 in a relatively larger space than the through hole 27 and sprayed through the spray nozzle 23.

The central separator 30 has a substantially cylindrical body, and forms a first fluid inlet chamber 34 in an upper side thereof.

In addition, a first fluid through hole 32 smaller than the diameter of the first fluid inlet chamber 38 is formed on a lower surface of the first fluid inlet chamber 34, and communicates with the first fluid through hole 32. A cylindrical groove 31 having a diameter larger than the diameter of the fluid through hole 32 is formed. A plurality of second fluid holes 33 are formed to communicate with the cylindrical groove 31 through the outer wall.

Sealing material 38 is inserted into an end portion of the cap 20 and the body 10 where the cap 20 is engaged, and the sealing material 42 is interposed between the inner surface of the body 10 and the upper surface of the central separator 30. Install and seal. The sealing member 38, 42 is preferably a rubber ring.

Looking at the state in which the body 10, the central separator 30 and the cap 20 is coupled, as follows.

The second fluid dispersion chamber 36 is formed as a space between the outer wall surface of the central separator 30 and the cylindrical wall surface 19 of the body 10, and is lowered on the lower side of the central separator 30. The cylindrical groove 31 and the semi-circular groove 25 of the cap 20 abut each other to form a fluid mixing chamber 35 which is one space. The first fluid is introduced into the fluid mixing chamber 35 through the first fluid through hole 32, and the second fluid is introduced through the second fluid through hole 33 and mixed therein. The mixed fluid enters each of the separate nozzles 22 through the through holes 27 and is mist sprayed through the plurality of spray nozzles 23.

In the above description, it is most preferable that the first fluid and the second fluid use water, which is a digestive infiltration mixture, and nitrogen, which is a non-combustible gas.

In an embodiment of the present invention, the first fluid uses water, which is a digestive infiltrating mixture, and the second fluid uses nitrogen gas, and vice versa, without departing from the scope of the present invention.

The present invention is environmentally friendly and safe because it mixes the number of needles and nitrogen gas inside the spray nozzle and uses it as a fire-extinguishing source. It is effective to block heat radiation.

In addition, since it is made in the form of a mist spray, the process of changing to steam to approach the fire source is instantaneously takes a large amount of heat, it has an excellent fire suppression ability.

Since the structure of the spray nozzle effectively mixes the two fluids and sprays them, an effect of simultaneously using the extinguishing properties of the two fluids occurs.

In addition, since it is a nozzle for mixing two fluids, it is possible to obtain a maximum effect by allowing the hypo fog system generated under a high pressure to be obtained at a relatively low pressure.

Claims (5)

In the spray nozzle of the fire extinguishing system installed in the building for fire extinguishing, A body 10 which forms a first fluid inlet and a second fluid inlet on an outer side, forms a cylindrical wall surface 19 on the inner side, places a step 37 on the upper end thereof, and forms a screw thread on the lower outer wall surface; A screw thread engaged with the screw thread of the body 10 is formed on the inner wall, a spray part 21 is formed at the center of the outer bottom, a semicircular groove 46 is formed at the center of the inner part, and A plurality of nozzle installation holes 26 formed at predetermined intervals on the circumference, and the nozzle installation holes 26 communicate with the semi-circular groove 25 and the through hole 27; The separation nozzle 22 is inserted into the nozzle installation hole 26 of the cap 20, and the mixed liquid spray chamber 28 is formed in one end of the cap 20, and a plurality of spray nozzles 23 are formed at the other end. ); It has a substantially cylindrical body, and forms a cylindrical first fluid inlet chamber (34) in the upper inside, a first fluid through-hole 32 in the center of the lower surface of the first fluid inlet chamber (34), The cylindrical groove 31 is formed at the lower end of the first fluid through-hole 32 to communicate with the first fluid inlet chamber 34, and the plurality of through-holes 36 to communicate with the cylindrical groove 31 around the outer wall. Inner-mixed two-fluid spray nozzle, characterized in that consisting of; According to claim 1, wherein the sealing member 38 is put at the end of the place where the cap 20 and the body 10 is engaged, and between the interior of the body 10 and the upper surface of the central separator 30 Inner-mixed two-fluid spray nozzle, characterized in that the sealing material 39 is installed and sealed. The first fluid inlet of claim 1, wherein the first fluid inlet 11 forms a first fluid top inlet 11 on one side of the top surface of the body 10, and a connection hole is formed in the first fluid top inlet 11 on one side of the body 10. It is configured to communicate with (17), the second fluid inlet is formed on the upper surface side of the body 10, the second fluid upper surface inlet 14 and the second fluid upper surface inlet 14 in communication with the body side one side The second fluid side inlet 13 is formed so as to be configured, and the first fluid inlet communicates with the first fluid inlet chamber 34 of the central separator 30 through the first fluid inlet hole 15. The second fluid injection port communicates with the second fluid dispersion chamber 36, which is a space between the cylindrical wall surface 19 of the body 10 and the outer wall surface of the central separator 30 through the second fluid injection hole 16. Internally mixed two-fluid spray nozzle, characterized in that. The method of claim 1, wherein the cylindrical groove 31 and the semi-circular groove 25 is combined to form a fluid mixing chamber 35, the first fluid through the inner side of the central separator 30 in the fluid mixing chamber 35 An internally mixed type two-fluid spray nozzle, characterized in that the first fluid supplied to the through hole 32 and the second fluid supplied to the second fluid through hole 33 through the outside of the central separator are met and mixed. The internally mixed two-fluid spray nozzle according to any one of claims 1 to 4, wherein the first fluid is fire water and the second fluid is nitrogen gas.