KR200341244Y1 - 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 first fluid inlet 12 and the second fluid inlet 11 is formed, the locking jaw and the cylindrical wall surface 14, 15 is formed, the outer diameter of the cylindrical wall surface 15 is a screw thread Body 10 to form; A screw thread is formed on the inner wall, an injection portion 21 is formed on the outside, a semicircular groove 46 is formed on the inner side, and the center of the semi-circular groove 46 communicates with the center of the injection portion 21. The first spray nozzle 22 is formed as much as possible, and a plurality of second spray nozzles 23 are formed around the first spray nozzle 22 formed in the injection part 21, and a circular groove ( A cap 20 forming 24; It has a substantially cylindrical body, the first fluid inlet chamber 38 and the orifice 39 is formed inward, the lower end of the orifice 39 is formed in the cylindrical groove 45 to communicate with each other, the outer wall of the body A central separation hole forming an orifice forming jaw 32 and a turning jaw 47 and having a second fluid supply surface 34 having a through-hole 36 below the turning jaw 47; It is characterized by.

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 is installed in a location vulnerable to moisture penetration so as not to be damaged by moisture.

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 is formed on the upper side, the second fluid inlet is formed on the side, the first fluid A locking jaw is formed at the end of the injection hole, a cylindrical wall surface having a larger diameter than the locking jaw is formed under the locking jaw, a cylindrical wall surface having a wider diameter is formed at the lower portion thereof, and a thread is formed at the outer diameter of the cylindrical wall surface. Body to do; A first thread is formed on the inner wall surface to engage with the screw thread of the body, a spraying portion is formed at the center of the outer lower portion, a semicircular groove is formed at the inner lower center, and a first portion is formed to communicate with the center of the spraying portion at the center of the semicircular groove. A cap forming a spray nozzle, forming a plurality of second spray nozzles in communication with the semi-circular groove around the first spray nozzle formed in the spraying unit, and forming a circular groove on the inner bottom surface; It has a substantially cylindrical body, and forms a first fluid inlet chamber in the upper inside thereof, and forms an orifice smaller than the diameter of the first fluid inlet chamber at the lower end of the first fluid inlet chamber, the orifice at the lower end of the orifice A cylindrical groove having a diameter wider than the diameter of the communication tube is formed, an orifice forming jaw is formed around one side of the outer wall of the body, and a direction changing jaw having a step is formed at the bottom of the orifice forming jaw, and the lower part of the turning jaw A central separator for forming a plurality of through-holes around the second fluid supply surface formed with; It provides an internal mixed two-fluid spray nozzle, characterized in that consisting of.

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.

4 is a view showing the inner surface of the cap of the present invention.

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

10: body 11: second fluid inlet

12: first fluid inlet 13: locking jaw

14: cylindrical wall surface 15: cylindrical wall surface

20: cap 21: injection part

22: first spray nozzle 23: second spray nozzle

30: central separator 31: second fluid dispersion surface

32: orifice forming jaw 33: slope

34: second fluid supply surface 35: fluid mixing chamber

36: through-hole 37: the second fluid injection orifice

38: first fluid inlet chamber 39: orifice

40: second fluid reduction chamber 41: second fluid dispersion chamber

42, 43: sealing material 44: inclined surface

45: cylindrical groove 46: semi-circular groove

47: turning jaw

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.

The body 10 has a lower opening, a first fluid inlet 12 is formed at an upper center thereof, and a second fluid inlet 11 is formed at a side thereof. It is preferable that a screw thread is formed on the wall surfaces of the first fluid inlet 12 and the second fluid inlet 11 so that the fluid supply pipe is screwed and fastened.

A locking jaw 13 is formed at an end of the first fluid inlet 12, and a cylindrical wall surface 14 having a diameter larger than that of the locking jaw 13 is formed below the locking jaw 13, and below It forms a cylindrical wall surface 15 of larger diameter. And the outer diameter of the cylindrical wall surface 15 forms a screw thread.

The cap 20 coupled to the body 10 and sealed is formed with a screw thread engaged with the screw thread of the body 10 on an inner wall thereof, and forms an injection part 21 at the center of the outer lower portion.

The spray unit 21 faces downward from the ceiling, and a first spray nozzle is formed at the center of the spray unit 21, and a plurality of second spray nozzles 23 are formed around the spray unit 21.

A semicircular groove 46 is formed at the inner lower center of the cap 20, and the center of the semicircular groove 46 and the first spray nozzle 22 are formed to communicate with each other. The second spray nozzle 23 also communicates with the semi-circular groove 46. And the inner bottom surface of the cap 20 forms a circular groove 24 so that the bottom surface of the central separator 30 to be described later is in close contact and fixed.

The central separator 30 has a substantially cylindrical body, and forms a first fluid inlet chamber 38 inside the upper portion thereof. An orifice 39 is formed at the lower end of the first fluid inlet chamber 38 and smaller than the diameter of the first fluid inlet chamber 38, and is wider than the diameter of the orifice 39 at the lower end of the orifice 39. A cylindrical groove 45 having a diameter is formed to communicate with each other.

An orifice forming jaw 32 is formed around one side of the body outer wall surface of the central separator 30, and a direction changing jaw 47 having a step is formed at the lower portion of the orifice forming jaw 32. And when the orifice forming jaw 32, the central separator 30 is located in the interior of the body 10, the lower end of the cylindrical wall surface 14 of the body 10 is formed to be located. A second fluid injection orifice 37 is formed between the lower end of the cylindrical wall 14 and the orifice forming jaw 32.

A second fluid supply surface 34 is formed below the direction change jaw 47, and a plurality of through holes 36 are formed around the second fluid supply surface 34. The plurality of through holes 36 communicate with the cylindrical groove 45.

The sealing member 43 is put into an end portion of the cap 20 and the body 10 where the cap 20 is engaged, and the sealing member 43 is sealed between the locking jaw 13 of the body 10 and the upper surface of the central separator 30. 42) Install and seal. The sealing member 42, 43 is preferably a rubber ring.

It is preferable to form an inclined surface at the lower end of the first fluid inlet chamber 38 to smoothly flow into the orifice 39.

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

A second fluid dispersion chamber 41 is formed as a space between the second fluid dispersion surface 31 and the cylindrical wall surface 14 of the central separator 30, and is dispersed in the second fluid dispersion chamber 41. The second fluid enters the second fluid deceleration chamber 40 through the second fluid injection orifice 37.

The second fluid deceleration chamber 40 is formed to change the direction of 90 degrees by the direction change jaw 47 of the central separation port, and the second fluid deceleration chamber 40 passes through the second fluid deceleration chamber 40 in a 90 degree direction. The speed is slowed down as well.

And the cylindrical groove 45 and the semi-circular groove 46 is combined to form a fluid mixing chamber 35, the outer side of the first fluid and the central separator is supplied from the fluid mixing chamber 35 through the inside of the central separation port The second fluid supplied through the through hole 36 is met and mixed.

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 the present invention, the first fluid uses water, which is a digestive infiltrating mixture, and the second fluid uses nitrogen gas, but is not limited thereto.

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 reduces the radiant heat by water vapor and dilutes oxygen in the air to suffocate and combust it. 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 (7)

In the spray nozzle of the fire extinguishing system installed in the building for fire extinguishing, A first fluid inlet 12 is formed at an upper portion, a second fluid inlet 11 is formed at a side surface, a locking jaw 13 is formed at an end of the first fluid inlet 12, and the locking jaw ( A cylindrical wall surface 14 having a diameter larger than that of the locking step 13 is formed at the lower portion of the lower portion 13, and a cylindrical wall surface 15 having a larger diameter is formed at the lower portion thereof, and a thread is formed at the outer diameter of the cylindrical wall surface 15. Body 10 to form; The thread engaging with the thread of the body 10 is formed on the inner wall surface, the injection portion 21 is formed on the outer lower center, the semi-circular groove 46 is formed on the inner lower center, and the semi-circular groove 46 A first spray nozzle 22 is formed at the center of the spray unit 21 so as to communicate with each other, and a plurality of second spray nozzles are formed around the first spray nozzle 22 formed at the spray unit 21. A cap 20 formed to communicate with the semi-circular groove 46 and forming a circular groove 24 on an inner bottom surface thereof; An orifice (39) having a substantially cylindrical body, forming a first fluid inlet chamber (38) at an inner side thereof, and having a diameter smaller than the diameter of the first fluid inlet chamber (38) at the lower end of the first fluid inlet chamber (38). And a cylindrical groove 45 having a diameter wider than the diameter of the orifice 39 at the lower end of the orifice 39, and forming an orifice forming jaw 32 around one side of the outer wall of the body. A plurality of through holes are formed around the second fluid supply surface 34 formed at a lower portion of the orifice forming jaw 32 and having a stepped portion at the lower portion of the orifice forming jaw 32. A central separator 30 forming 36; Internally mixed two-fluid spray nozzle, characterized in that consisting of. According to claim 1, wherein the sealing member 43 is put into the end of the cap 20 and the body 10 is engaged, and the sealing jaw 13 and the central separator 30 of the body 10 An internal mixed two-fluid spray nozzle, characterized in that the sealing member 42 is installed between the upper surface of the seal. The internally mixed two-fluid spray nozzle according to claim 1, wherein an inclined surface is formed at a lower end of the first fluid inlet chamber (38) to smoothly flow into the orifice (39). The method of claim 1, wherein the second fluid dispersion chamber 41 is formed in the space between the second fluid dispersion surface 31 and the cylindrical wall surface 14 of the central separator 30, the second fluid dispersion chamber An internal mixed two-fluid spray nozzle, characterized in that the second fluid dispersed in (41) enters the second fluid deceleration chamber (40) through the second fluid injection orifice (37). The internal fluid type two-fluid spray nozzle according to claim 4, wherein the second fluid deceleration chamber (40) is decelerated in a 90 degree direction by the direction change jaw (47) of the central separator. 2. The fluid flow chamber of claim 1, wherein the cylindrical grooves 45 and the semicircular grooves 46 are combined to form a fluid mixing chamber 35, and the first fluid and the center are supplied from the fluid mixing chamber 35 through the inside of the median outlet. Internally mixed two-fluid spray nozzle, characterized in that the second fluid is supplied through the outside of the separator is supplied through the through hole 36 is met and mixed. The internally mixed two-fluid spray nozzle according to any one of claims 1 to 6, wherein the first fluid is fire water and the second fluid is nitrogen gas.