JPH09103514A - Fire extinguishing device being equipped with fuel injector assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fire extinguishing appliance, by which a fire can quickly be extinguished with a small quantity of fluid and the early stage extinguishing for a fire can be accomplished. SOLUTION: A fire extinguishing appliance includes an ejection nozzle assembly having a frame 120, a cap member 110 assembled on the upper part of the frame 120, and many nozzle parts 30 which are assembled on the base of the frame 120 and spread a fluid to a fire spot. The nozzle part 130 includes a nozzle tip having a hollow nozzle main body, a swirler which is built in the hollow nozzle main body and applies centrifugal force to a pressure fluid flowing in the hollow nozzle main body, a swirler holder which is inserted in the upper end part of the hollow nozzle main body, stores a pressure fluid and comes into contact with the swirler to keep the swirler from being moved, and an orifice which is inserted in the lower end part of the hollow nozzle main body and ejects a pressure fluid to a fire spot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguisher, and more particularly, to an improved jet that transforms water into fine particles by utilizing high pressure when a fire occurs and effectively jets the water to a fire place. The present invention relates to a fire extinguisher equipped with a nozzle assembly.

[0002]

2. Description of the Related Art Generally, a sprinkler system is used as a fire extinguisher for extinguishing a fire generated in a building or a room. A conventional sprinkler system includes a hydraulic pump that applies a pressure to a fluid supplied from a fluid supply source, an alarm valve that is connected to the hydraulic pump through a first pipe to generate an alarm when a fire occurs, and a second alarm valve that is connected to the alarm valve. An injection nozzle for injecting the pressure fluid, which is connected through a pipe and has passed through the alarm valve, to the outside, and a sprinkler head.

The sprinkler head has a deflector for injecting a pressure fluid, which is injected outside through a fusible link and an injection nozzle, which are melted when the temperature of the room rises above a set value due to a fire, at a predetermined angle. Are formed.

In the absence of a fire, the fusible link blocks the fluid outlet so that pressurized fluid remains in the first and second lines.

The conventional sprinkler system having such a configuration operates as follows. First, when the room temperature rises above a set value, that is, above the melting point of the fusible link due to the occurrence of a fire, the fusible link melts. The melting of the fusible link causes the pressure fluid filled in the second pipe to flow into the sprinkler head through the injection nozzle.

The pressure fluid flowing into the sprinkler head is ejected to the outside through the deflector, and the pressure fluid is given a predetermined angle when passing through the deflector and is sprinkled on the place where the fire is generated. It

On the other hand, when the pressure fluid filled in the second pipe is sprinkled to the outside, the pressure in the second pipe becomes lower than the pressure in the first pipe, so that The pressure fluid filled in the first pipe passes through the alarm valve. When the pressure fluid filled in the first pipe passes through the alarm valve, the alarm valve emits an alarm sound indicating that a fire has occurred. The pressure fluid that has passed through the alarm valve is sprinkled on the place where the fire has occurred through the second pipe, the injection nozzle, and the sprinkler head.

Further, when the pressure in the first pipe becomes lower than a set value due to the movement of the pressure fluid filled in the first pipe, the hydraulic pump is operated to operate the first pipe.
Pressure fluid will be supplied to the pipe.

However, the conventional sprinkler system having the above structure has the following problems.

First, since the particles of the polka dots to be spread are formed relatively large, the area of the polka dots exerted by the weight of the polka dots is not wide, and a large amount of fluid is required to extinguish the fire.

Also, since the evaporation time of the water droplets having large particles takes a relatively long time, the oxygen concentration in the fire area is not diluted quickly, so that it is difficult to quickly suppress the fire.

In addition, when the room temperature is lower than the melting point of the fusible link blocking the flow path, the sprinkler system does not operate, so that the fire is suppressed in the early stage of the fire when the room temperature is relatively low. Is impossible.

Therefore, there has been a demand for a fire extinguisher capable of quickly suppressing a fire with a small amount of fluid, suppressing the fire initially, and effectively suppressing a fire in a wide area.

[0014]

DISCLOSURE OF THE INVENTION The present invention is to solve the above-mentioned problems of the prior art. The technical object of the present invention is to transform a pressure fluid into fine waterdrops and jet it to a fire place. The present invention provides a fire extinguisher having an improved injection nozzle assembly capable of quickly suppressing a fire with a small amount of fluid, enabling initial suppression of the fire, and effectively suppressing a large area fire. .

[0015]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a smoke detection sensor installed inside a room for detecting smoke inside the room, and a temperature inside the room installed inside the room. A heat detecting sensor for detecting a fire, a control unit connected to the smoke detecting sensor and the heat detecting sensor for generating a control signal according to a fire detection signal from the smoke detecting sensor and the heat detecting sensor, and the control unit connected to the control unit. A remote control valve which is opened when the unit generates a control signal; a plunger pump which is connected to the control unit and supplies a high pressure fluid when the control unit generates the control signal; Centrifugal force is applied to the pressure fluid supplied through the remote control valve to transform the high pressure fluid into polka dots having fine particles and fire field. Composed of the injection nozzle assembly for spraying the.

It is to be noted that a first member is disposed between the plunger pump and the remote control valve for guiding the pressure fluid.
And a second water pipe disposed between the remote control valve and the injection nozzle assembly for guiding the pressurized fluid.

The injection nozzle assembly has an open end, and four screw holes are regularly formed on a bottom surface inclined at a predetermined angle so that the pressure fluid can be spread over a wide range. A hollow cylindrical part, which has a frame and a disk shape and is connected to the second water pipe, is integrally formed on the upper surface of the frame and is rigidly assembled to the open end of the frame to form the second pipe. It includes a cap member connected to the water pipe and containing a high-pressure fluid, and four nozzle parts assembled in a screw hole formed on the bottom surface of the frame to spray the fluid to a fire place.

The nozzle portion has a center hole and a screw hole, is screwed into the screw hole of the frame, and has a polygonal shape so as to be easily assembled in the screw hole of the frame. A hollow nozzle body including a screw portion screwed into the screw hole and a ridge portion disposed between the head portion and the screw portion, and a hollow nozzle body that is built in the hollow nozzle body. Has a cylindrical body having a center hole formed in the center thereof, which applies a centrifugal force to the pressure fluid flowing into the cylinder body, and the cylinder body has a guide body for guiding the pressure fluid flowing from the swirler holder to the nozzle tip. Two slots are regularly formed around a cylinder, and the bottom surface of the cylindrical body is configured to receive pressure fluid flowing from the swirler holder from the nozzle tip. A swirler that is incised by a predetermined depth so that it can be guided to, is stored in the screw type hole of the hollow type nozzle body of the hollow type nozzle body and stores the pressure fluid, and has a cylindrical shape, A screw is formed on the cylinder so as to be screwed into the screw-shaped hole of the nozzle body, and a hole for accommodating the pressure fluid is formed in the center thereof so that the swirler is not moved. The swirler holder has four protrusions that regularly contact with the upper surface of the swirler and is regularly separated from each other, and is inserted into the lower end of the center hole of the hollow nozzle body to inject a pressure fluid to a fire place. And a nozzle tip integrally formed with the nozzle body.

[0019]

The fire extinguisher of the present invention having the above-mentioned structure operates as follows. When a fire occurs in a room, a smoke sensor or a heat sensor installed in the room detects smoke or heat generated during the fire and transmits a fire occurrence signal to the control unit. This causes the control unit to send a valve open signal to the remote control valve and an actuation signal to the plunger pump.

The plunger pump, which receives the operation signal, supplies high-pressure fluid to the injection nozzle assembly.

The pressure fluid supplied to the injection nozzle assembly is guided to the orifice of the nozzle tip, and the pressure fluid flowing into the orifice of the nozzle tip is subjected to centrifugal force while passing through the swirler holder. Will be affected by.

The high-pressure fluid subjected to the centrifugal force is jetted to the fire place through the orifice. At this time,
The jetted high-pressure fluid is deformed and sprayed into polka dots having fine particles due to the pressure difference from the atmospheric pressure, and also has an appropriate jetting angle to receive the action of centrifugal force and effectively suppresses fire. Will be possible.

As described above, since the fire extinguisher equipped with the injection nozzle assembly according to the present invention ejects the water droplets having fine particles into the fire area, the fire can be quickly extinguished with a small amount of fluid. It has the effect of reducing the oxygen concentration at the fire site and suppressing the spread of the fire.

In addition, a sensor for detecting a fire is installed inside the room and immediately reacts to a fire factor such as smoke and an increase in temperature, thereby enabling the initial detection and suppression of the fire.

[0025]

BRIEF DESCRIPTION OF THE DRAWINGS The above objects and other features and advantages of the present invention will be apparent from the following description of some preferred embodiments of the present invention with reference to the accompanying drawings.

The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a fire extinguisher 20 according to an embodiment of the present invention.
0 is shown. As shown in FIG. 1, a fire extinguisher 200 according to an embodiment of the present invention is installed in a room 210, a smoke sensor 220 for detecting smoke in the room 210, and a room installed in the room 210. A heat detecting sensor 230 for detecting the temperature inside 210, an electronic control unit connected to the smoke detecting sensor 220 and the heat detecting sensor 230 to generate a control signal according to a fire detecting signal from the smoke detecting sensor 220 and the heat detecting sensor 230. Two
40, a plunger pump 250 connected to the electronic control unit 240 to supply a high pressure fluid by the electronic control unit 240 generating a control signal, and the electronic control unit 240 connected to the electronic control unit 240.
Is provided with a remote control valve 260 that is opened by generating a control signal, and an injection nozzle assembly 100 that sprays high-pressure fluid supplied from the plunger pump 250 to a fire place.

A first water pipe 255 is disposed between the plunger pump 250 and the remote control valve 260 to smoothly supply the high pressure fluid, and the remote control valve 260 and the injection nozzle assembly are disposed. Second between 100
The water supply pipe 265 is arranged.

FIG. 2 shows the injection nozzle assembly according to the invention in more detail. As shown in FIG. 2, the injection nozzle assembly 100 has an open end 12 at the top.
4, a frame 120 having a plurality of regularly spaced screw holes 122 formed on the bottom surface thereof, the frame 120 being firmly assembled to the open end 124 of the frame 120;
A cap member 110 connected to the second water pipe 265 for enclosing and containing a high-pressure fluid, and a plurality of nozzle units 130 assembled to screw holes 122 formed on the bottom surface of the frame 120 to sprinkle the fluid to a fire place. It is composed of.

According to a preferred embodiment of the present invention, the injection nozzle assembly 100 has four screw holes 122.
And four nozzle units 130.

The cap member 110 has a disc shape, and a cylindrical portion 114 connected to the second water supply pipe 265 is integrally formed on the upper surface thereof. The cap member 11
No. 0 has a through hole 116 through which a pressure fluid flows in at the center thereof, and the cylinder 112 of the cap member 110.
A screw is formed in the frame 120 so that it can be screwed into the open end 124 of the frame 120.

The bottom surface of the frame 120 is inclined outward by a predetermined angle so that the fluid passing through the nozzle portion 130 can be spread widely over a fire place. .

As shown in FIG. 3, each of the nozzle portions 130 includes a hollow nozzle body 131 having a center hole 131A and a screw hole 131B. In addition, the nozzle unit 130 is built in the hollow nozzle body 131, and a swirler (vortex generating member) 135 that gives a centrifugal force to the pressure fluid flowing into the hollow nozzle body 131, and the hollow nozzle body 131. A swirler holder 139, which is screwed into the screw type hole 131B and contacts the swirler 135 so that the swirler 135 can be fixed, and a lower end of the center hole 131A of the hollow type nozzle body 131, are inserted into the swirler holder 139 to fire the pressure fluid. And a nozzle tip 150 for jetting toward a location.

Although the nozzle tip 150 is shown as a separate part, the nozzle tip 150 may be integrally formed with the hollow nozzle body 131 according to another embodiment of the present invention. In addition, the diameter of the screw hole 131B is larger than that of the center hole 131A so that the swirler 135 can be easily assembled in the center hole 131A of the hollow nozzle body 131.

FIG. 4 shows the nozzle portion 130 in more detail. As shown in FIG. 4, the hollow nozzle body 131 may include the frame 120.
In the screw hole 122 of the hollow type nozzle body 13
1 is arranged in a polygonal shape so that 1 can be easily screwed, a screw portion 134 screwed into the screw hole 122, and disposed between the head portion 132 and the screw portion 134. A ridge portion 133 is included.

The swirler 135 has a cylindrical main body 135A, and a center hole 137 is formed in the center thereof. In the cylindrical body 135A of the swirler 135, a plurality of slots 136 for guiding a pressure fluid to the nozzle tip 150 are regularly formed around the cylindrical outer wall. In addition, the bottom surface of the cylindrical main body 135A allows the pressure fluid that has passed through the slot 136 to flow into the nozzle tip 150.
It is incised to a predetermined depth so that it can be easily guided to the inside (a groove extending radially is formed at the predetermined depth). According to a preferred embodiment of the present invention, the swirler 13
5 comprises four slots 136.

The swirler holder 139 has a cylindrical shape,
A hole 140 into which a pressure fluid is introduced from the through hole of the cap member 110 is formed in the center thereof, and a large number of regularly projecting portions 144 are integrally formed on the bottom surface. According to a preferred embodiment of the present invention, the swirler holder 139 includes four protrusions 144. The protrusion 144 contacts the swirler 135 to prevent the swirler 135 from moving. The swirler holder 139
A screw is formed on the cylindrical outer wall 142 so as to be screwed into the screw hole 131B of the hollow nozzle body 131.

On the other hand, the nozzle tip 1 inserted in the center hole 131A of the hollow nozzle body 131.
50 has an orifice 152 in its center that guides the pressurized fluid to the fire location.

The fire extinguisher 20 having the injection nozzle assembly 100 having the above structure according to the embodiment of the present invention.
0 operates as follows.

When a fire occurs in the room 210, the smoke detecting sensor 220 or the heat detecting sensor 230 installed in the room 210 detects smoke or heat generated during the fire and causes the electronic control unit 240 to fire. Transmit the generated signal. When the fire occurrence signal is transmitted to the electronic control unit 240, the electronic control unit 240 sends a valve opening signal to the remote control valve 260 and then sends an operation signal to the plunger pump 250.

By applying the actuation signal to the plunger pump 250, the plunger pump 2
Reference numeral 50 denotes a first water pipe 255 and a remote control valve 26 for applying a high pressure fluid to the fluid supplied from the fluid supply source.
It is supplied to the injection nozzle assembly 100 through 0 and the second water supply pipe 265.

As shown in FIG. 3, the pressure fluid supplied to the injection nozzle assembly 100 flows into the nozzle portion 130 through the through hole 116 of the cap member 110 and fires through the orifice 152 of the nozzle tip 150. Jetted into place.

That is, as shown in more detail in FIG. 5, the fluid introduced through the through hole 116 of the cap member 110 has a hole 140 of the swirler holder 139.
Will be flowed in from. Then, the fluid introduced into the hole 140 of the swirler holder 139 may have a plurality of slots 13 formed in the central hole 137 of the swirler 135 and the cylinder of the swirler 135, as shown by an arrow in FIG.
6 through the orifice 15 of the nozzle tip 150
2

At this time, the pressure fluid passing through the slot 136 and flowing into the orifice 152 of the nozzle tip 150 is subjected to the action of centrifugal force, forming a water flow in the form of a swirl to the nozzle tip 150. Be flowed in.

On the other hand, the pressure fluid is sprayed to the fire place quickly because the pressure is lowered while passing through the orifice 152 having a narrow flow passage cross-sectional area, so that the flow velocity is increased. When the pressure is jetted to a fire place, the pressure fluid is deformed and sprayed into polka dots having fine particles due to the pressure difference from the atmospheric pressure, which enables effective suppression of the fire.

Further, since the pressure fluid is subjected to the action of centrifugal force, the pressure fluid jetted to the fire place through the orifice 152 has an appropriate jet angle and has fine particles.

The polka dots having the fine particles not only cool the heat and extinguish the fire quickly, but also increase the number of steam in a short time to generate water vapor, so that the concentration of oxygen in the fire place is reduced and the fire spreads. Will be suppressed.

On the other hand, since the bottom surface of the frame 120, in which the nozzle portions 130 are regularly spaced apart, has a predetermined inclination, the spraying range of fine particles through the nozzle portion 130 is further increased.

According to the applicant's experiments, the average size of the waterdrop particles injected by the fire extinguisher 200 according to the present invention is about 100 μm, and the waterdrop particles injected through a conventional sprinkler system (about 1 m).
m) formed smaller.

Further, since the fire extinguishing condition of the fire extinguisher 200 according to the present invention is 1.3 liters / (min · m ² ), the fire extinguishing condition of the standard sprinkler is 4.0 liters / (min · m ² ). It has the advantage of saving water.

[0050]

As described above, in the fire extinguisher equipped with the injection nozzle assembly according to the present invention, a water drop having fine particles is sprinkled on the fire area, so that a small amount of fluid causes a quick fire. It not only extinguishes the fire, but also reduces the oxygen concentration at the fire site and suppresses the spread of the fire.

In addition, a sensor for detecting a fire is installed inside the room and immediately reacts to a fire factor such as smoke and an increase in temperature, thereby enabling an early detection and suppression of the fire.

Although the present invention has been described in detail with reference to the embodiments, the present invention is not limited to the embodiments, and those having ordinary knowledge in the technical field to which the present invention pertains do not depart from the spirit and the spirit of the present invention. The present invention could be modified or altered.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a fire extinguisher according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of an injection nozzle assembly according to an exemplary embodiment of the present invention.

3 is a cross-sectional view of the injection nozzle assembly shown in FIG.

FIG. 4 is an exploded perspective view of a nozzle portion of an injection nozzle assembly according to the present invention.

FIG. 5 is an enlarged perspective view of the “M” portion shown in FIG.

[Explanation of symbols]

 100 Injection Nozzle Assembly 110 Cap Member 112 Cylinder 114 Cylindrical Part 116 Through Port 120 Frame 122 Screw Hole 130 Nozzle Part 124 Open End 131A Center Hole 131B Screw Type Hole 131 Hollow Nozzle Body 135 Swirler 139 Swirler Holder 150 Nozzle Tip 132 Head Part 134 Screw part 133 Ridge part 135A Cylindrical body 137 Center hole 140 Hole 144 Projection part 142 Cylindrical outer wall 152 Orifice 200 Fire extinguisher 210 Room 220 Smoke sensor 230 Heat sensor 240 Electronic control unit 250 Plunger pump 260 Remote control valve 255 First water pipe 265 Second water pipe

Claims (15)

[Claims] 1. A smoke detection sensor installed inside a room to detect smoke inside the room, a heat detection sensor installed inside the room to detect a temperature inside the room, and the smoke detection sensor and the heat detection sensor. A control unit connected to generate a control signal according to a fire detection signal from the smoke detection sensor and the heat detection sensor; and a remote control valve connected to the control unit and opened by the control unit generating a control signal. A plunger pump, which is connected to the control unit and is driven by the control unit to generate a control signal to supply a high-pressure fluid, and means for sprinkling the high-pressure fluid to a fire place. Means imparts a centrifugal force to the high-pressure fluid passing through the fluid spraying means, transforms the high-pressure fluid into polka dots having fine particles, and sprays the fire spot. Fire extinguisher. 2. A first water pipe and a remote control valve arranged between the plunger pump and the remote control valve for supplying the high-pressure fluid from the plunger pump to the sprinkling means. The fire extinguisher according to claim 1, further comprising a second water pipe arranged between the sprinkling means and the second water pipe. 3. The frame for spraying the fluid, the frame having an open end at the top and a plurality of regularly spaced screw holes on the bottom, and the frame being firmly assembled to the open end of the frame. An injection nozzle set including a cap member that is connected to the second water supply pipe and stores a high-pressure fluid, and a plurality of nozzle parts that are assembled in a screw hole formed in a bottom surface of the frame and spray the fluid to a fire place. The fire extinguisher according to claim 2, wherein the fire extinguisher includes a solid body. 4. The fire extinguisher according to claim 3, wherein the injection nozzle assembly has four screw holes and four nozzle portions. 5. The fire extinguisher according to claim 3, wherein the bottom surface of the frame is inclined outward with a predetermined angle so that the pressure fluid can be spread over a wide range. . 6. The cap member has a disc shape, and a hollow cylindrical portion connected to the second water supply pipe is integrally formed on an upper surface of the cap member. Fire extinguisher. 7. The hollow nozzle body, wherein the nozzle portion has a center hole and a screw hole, a swirler built in the hollow nozzle body and imparting a centrifugal force to a pressure fluid flowing into the hollow nozzle body, A swirler holder, which is built into the screw type hole of the hollow nozzle body and contacts the upper surface of the swirler so as not to move the swirler, and is inserted into the lower end of the center hole of the hollow nozzle body to fire the pressure fluid. The fire extinguisher according to claim 3, further comprising a nozzle tip having an orifice for spraying to a location. 8. The fire extinguisher according to claim 7, wherein the nozzle tip is integrally formed with the hollow nozzle body. 9. The hollow nozzle body has a polygonal head portion, a screw portion screwed into the screw hole of the frame, and a ridge arranged between the head portion and the screw portion. The fire extinguisher according to claim 7, further comprising a part. 10. The swirler has a cylindrical body having a central hole formed in a central portion thereof, and the cylindrical body has a plurality of slots for guiding a pressure fluid introduced from the swirler holder to the nozzle tip. The fire extinguisher according to claim 7, wherein the fire extinguisher is formed regularly around the cylinder. 11. The fire extinguisher according to claim 10, wherein a groove having a predetermined depth is formed in the bottom surface of the cylindrical body to guide the pressure fluid passing through the slot to the nozzle tip. apparatus. 12. The fire extinguisher according to claim 10, wherein the swirler has four slots. 13. The swirler holder has a cylindrical shape and has a hole for accommodating a pressure fluid in the center thereof, and a plurality of regularly spaced protrusions are integrally formed on the bottom surface. The fire extinguisher according to claim 7, which is formed. 14. The fire extinguisher according to claim 13, wherein the swirler holder has four protrusions, and the four protrusions are in contact with an upper surface of the swirler to prevent movement of the swirler. . 15. The fire extinguisher according to claim 14, wherein a screw is formed on an outer peripheral surface of the cylinder of the swirler holder so as to be screwed into a screw hole of the hollow nozzle body.