KR20020017702A - a system nozzle spray for fire fighting tunnel - Google Patents

Abstract

PURPOSE: Provided is a spray nozzle system for fire fighting in a tunnel which enables water to spray into the section of 50m from a fire generation point so that it minimizes people and vehicle damage in causing fire. CONSTITUTION: The spray nozzle system for fire fighting in the tunnel comprises the parts of: a spray internal pipe which includes a venturi part and a movable magnet with multiple spray holes; a coupling pipe which twofold sprays water from a spray nozzle at the angle of 20deg; a distribution pipe which is connected to a dual spray nozzle(1) to spray water twofold; an integrated spray pipe which forms a circular projection at external side of exit and a bolt at external side of inlet; a nut ring which forms a circular groove to match to the circular projection and a piece for adjusting water spray angle; and an adjustment nozzle for water spray angle which is connected to the distribution pipe to spray water and form a protection wall in the internal of fire by water membrane.

Description

{A system nozzle spray for fire fighting tunnel}

The present invention relates to a fire extinguishing nozzle system installed in a tunnel. More specifically, a double spray nozzle and a water spray angle control nozzle are installed in a distribution pipe at intervals of 4 to 5 m by installing a water supply pipe in the tunnel. The nozzle is directed downward, and the water spray angle control nozzle is connected to the upper direction, and the fire extinguishing spray nozzle system has a structure in which water can be injected only in the fire zone in the event of a fire.

Conventionally, a fire extinguisher is provided in a tunnel, and when a fire occurs, a person directly sprays the fire extinguisher to extinguish a fire, or when a fire report is made to a nearby fire station where a fire has occurred, a fire engine is dispatched and a firefighter has suppressed the fire directly.

However, extinguishing a fire by using a fire extinguisher in a tunnel is difficult to access due to fear of suffocation due to flame and smoke. Also, when a fire truck is dispatched, it takes a lot of time for a fire truck to enter a traffic congestion and congestion until the fire occurs. There was an issue that took place.

In particular, the fire generated in the tunnel is not only easily spread or discharged out of flames and smoke, but also has a high risk of asphyxiation, and it is difficult to move a traffic jam and evacuate.

Therefore, in the event of a fire caused by a car accident in a tunnel, measures are taken to minimize the damages caused by fire and smoke, vehicle damage, and other facilities such as electric wires in the tunnel.

The present invention has been made in order to solve the above problems, the present invention is a double spray nozzle to the distribution pipe of the supply pipe piped along the inner wall of the tunnel in the downward direction, the water injection angle control nozzle is coupled to the upward direction and double The spray nozzle and the water spray angle control nozzle are set at an angle of 100 degrees, and a plurality of spray nozzle systems for spraying water at 170 degrees are installed at intervals of 4 to 5 m on the wall inside the tunnel, and the entire tunnel is divided into sections every 50 meters. In case of fire, two sections can be sprayed at the same time. The purpose of the present invention is to extinguish a fire early in the tunnel due to a car accident in the tunnel, thereby minimizing human damage and property damage caused by flames and smoke, and spraying the left and right 50m sections from the place of fire to spread smoke and flames. To prevent it.

1 is a spray nozzle system configuration of the dual spray nozzle and the water jet angle adjustment nozzle of the present invention combined state at 100 degrees.

Figure 2a is a cross-sectional configuration of the dual spray nozzle of the present invention.

Figure 2b is a cross-sectional view of the water jet angle control nozzle of the present invention.

Figure 3 is a spray nozzle system configuration in a state in which the one-way jet nozzle and the water jet angle control nozzle is coupled at a 90 degree angle as another embodiment of the present invention.

Figure 4a is a cross-sectional view of a one-way injection nozzle applied to the nozzle system of Figure 3;

Figure 4b is a cross-sectional view of the spray angle adjustment nozzle applied to the nozzle system of Figure

5 is an exemplary view of a state in which the injection nozzle system of the present invention is installed in a tunnel.

<Description of Signs of Main Parts in Drawings>

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

An injection inner tube having a venturi part 4 formed inside the outlet 2 and an inlet 8 having a plurality of injection holes 8 'fitted to the other inlet 3 so as to be inclined to one side to spray water. (5);

A coupling pipe (7) positioned to be spaced apart from an outer surface of the injection inner pipe (5) and screwed to an inner surface of the connector pipe (6) so as to double-inject water at a 20 degree angle from the injection nozzle;

The dual injection nozzle 1 including the injection inner pipe 5, the coupling pipe 7, and the connector pipe 6 is installed downward to communicate with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16. A configuration configured to spray water twice;

The inlet (3) side is wide and the outlet (2) is formed narrow, the inner surface is tapered, the outer surface of the outlet (3) side annular projection 12 is integrally formed, and the inlet (3) side outer surface of the integral injection tube ( 11);

An annular groove 13 is formed to correspond to the annular projection 12 on the outer surface of the integrated injection pipe 11 and fixes the water injection angle adjusting piece 14 interposed between the annular projection 12 and the annular groove 13. A nut ring 14 capable of being made;

The water injection angle control nozzle 10 including the integrated injection pipe 11, the adjustment piece 15, and the nut ring 14 communicates with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16. A configuration configured to be upwardly sprayed with water;

The water injection angle control nozzles 10 and the double injection nozzles 1 installed above and below the distribution pipe 18 of the supply pipe 17 are installed at an angle of 100 degrees to inject water onto the entire roadway width in the tunnel. Configuration.

In another embodiment of the present invention, the venturi part 4 'is formed inside the outlet 2, and an integral spray nozzle 20 having a bolt part formed on an outer surface thereof;

A fluid (8) having a plurality of injection holes (8 ') having an inclination in one direction such that water is injected into the inner surface of the inlet (3) side of the integrated injection nozzle (20);

The injection nozzle 20 including the fluid 8 is installed downward to communicate with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16 to inject water,

The water injection angle adjusting nozzle 10 'including the integral injection pipe 10' having the inner surface tapered and the adjusting piece 15 'and the nut ring 14' is provided in the tunnel 16. It is installed upwardly in communication with the pipe 18 and configured to adjust the spraying direction of water;

The water injection angle control nozzles 10 'and the integral injection nozzles 20 installed above and below the distribution pipe 18 of the supply pipe 17 are installed at a 90 degree angle so that water can be sprayed on the entire road width in the tunnel. Configuration. Reference numeral 30 is a road through which the car passes, and 40 is a drainage path through which the injected water can be discharged.

According to the present invention configured as described above, the distribution pipe 18 of the supply pipe 17 is automatically opened by the fire detection sensor (not shown) installed on the inner wall of the tunnel when a fire occurs in the vehicle in the tunnel 16. And water is injected from the water injection angle control nozzle 10 to be able to extinguish the fire initially.

That is, when a fire occurs, water passing through the distribution pipe 18 of the supply pipe 17 piped in the tunnel flows into the inner injection inner pipe 5 through the connection pipe 6 of the dual injection nozzle 1 installed downward. A part of water is sprayed by the injector (8) of the injector (3) inlet 3 of the injection inner tube 5, and a part of water is sprayed between the outer surface of the inner injection tube 5 and the inner surface of the coupling tube 7 As a result, water is sprayed in a double way, and the spraying direction is set to one side of the road 30 on the side where the spray nozzle system is installed to extinguish the fire.

The distribution holes 8 ', which have been through a plurality of the holes 8, are formed to be inclined (having the same slope as the torsion of the pinwheel), not through the straight holes, so that the water is distributed in the fluid 8 distribution holes 8'. While passing through the spray like a spray and passing through the venturi portion (4) to have a flow rate and the injection angle is injected from the water injection pipe (5).

In addition, the inner diameter of the inlet (3) side of the injection pipe (11) in the water injection angle control nozzle (10) installed in the upper portion of the distribution pipe (18) is wide, and the inner diameter of the outlet (2) side is narrow, so as to increase the flow velocity of the water to go away. However, the water injection angle adjusting piece 15 interposed between the annular projection 12 and the annular groove 13 on the outer surface of the injection pipe 11 guides the water to the other end beyond the center line to the end of the width. The water sprayed from the water spray angle control nozzle 10 is to extinguish the fire by spraying water toward the road.

As described above, the spray nozzle system that accommodates the width of both roads and sprays water has a slightly different range in which water is sprayed according to the width and height of the tunnel, but the water spray angle control nozzle installed above the distribution pipe 18 ( 10) When the angle between the center line and the downwardly installed double jet nozzle (1) is centered as shown in FIG. 1 so that the angle is 100 degrees, the entire water jet is injected between the outer surface of the dual jet nozzle 1 and the coupling pipe 7. The angle is generated at 170 degrees and the waterproof amount is 110L / min, so that the road width of both lanes in the tunnel can be accommodated in the waterproof section.

The spray spray nozzle system has a 20 to 30m range of fire effect on the watertight section of the water spraying facility, and there is a margin to install the tunnel end 50m in one section in consideration of the installation interval with other facilities. In order to cope with a fire occurring at the boundary of the city, it is standard that two sections are sprayed simultaneously. In addition, the amount of water sprayed against gasoline fires is sufficient to prevent water content of more than 6 l / min per 1 m2 of road surface, and the spray spray nozzle system of the present invention runs in order to distribute water evenly on the surface of the water as much as possible. It is preferable to use for overtaking lanes, and the installation interval is about 4 ~ 5m. At this time, the system consisting of the nozzle is installed on the upper wall side of the guard passage to facilitate maintenance, and the installation height is installed as shown in Figure 5 at a height that can obtain a distribution of spraying without obstructing the traffic on the roadway.

In this case, the bending angle of the adjusting piece of the water jet angle adjusting nozzle installed at the upper portion of the distribution pipe forms a bending angle at the time of manufacture according to the shape of the tunnel and the road width.

In another embodiment of the present invention, as shown in FIG. 3, the upper portion of the distribution pipe 18 of the water supply pipe 17 installed on the tunnel wall surface has the same water jet angle adjustment nozzle 10 'as the adjustment piece 15'. ) And the body is integrally molded at the lower part thereof, so that the venturi part 4 'is formed at the inner side of the outlet side, and the inlet side has the atomizer 8 having a plurality of injection holes 8' inside. The nozzle 20 can be installed to spray water.

The installation angle of the water injection angle control nozzle 10 'installed in the distribution pipe 18 and the injection nozzle 20 in which the body is integrated is installed at 90 degrees as shown in FIG. 3, and the spraying angle of spraying water is 120 degrees. The amount of waterproofing is 90L / min to spray the road surface of both lanes in the tunnel.

The spray injection system installed as shown in FIG. 3 is a structure suitable for a tunnel having a small tunnel and a small driver on the road.

The present invention made as described above is detected by a fire detector installed in the tunnel at the time of fire occurrence, the automatic valve selection and the fire pump is operated by the receiver, the administrator checks the fire point on the monitoring television (ITV), and then the automatic The valve is opened so that the water in the water supply pipe is supplied to the distribution pipe side.

In the present invention, a means for receiving a fire occurrence as a fire detector and receiving it in the control room while opening the automatic valve in the tunnel in the automatic control device of the central control room may be referred to as a general system.

According to the present invention made in this way it is possible to quickly extinguish early in the event of a fire in the tunnel, there is an effect that can facilitate the evacuation work without damaging the facilities such as concrete in the tunnel.

In addition, the water spraying section by setting the left and right 50m as the watering section from the starting point of fire is a tunnel-shaped water barrier to prevent any further spreading to other sections, minimizing the damage to life and property due to smoke and flames. It can work.

Claims (4)

An injection inner tube having a venturi part 4 formed inside the outlet 2 and an inlet 8 having a plurality of injection holes 8 'fitted to the other inlet 3 so as to be inclined to one side to spray water. (5); A coupling pipe (7) positioned to be spaced apart from an outer surface of the injection inner pipe (5) and screwed to an inner surface of the connector pipe (6) so as to double-inject water at a 20 degree angle from the injection nozzle; The dual injection nozzle 1 including the injection inner pipe 5, the coupling pipe 7, and the connector pipe 6 is installed downward to communicate with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16. A configuration configured to spray water twice; The inlet (3) side is wide and the outlet (2) is formed narrow, the inner surface is tapered, the outer surface of the outlet (3) side annular projection 12 is integrally formed, and the inlet (3) side outer surface of the integral injection tube ( 11); An annular groove 13 is formed to correspond to the annular projection 12 on the outer surface of the integrated injection pipe 11 and fixes the water injection angle adjusting piece 14 interposed between the annular projection 12 and the annular groove 13. A nut ring 14 capable of being made; The water injection angle control nozzle 10 including the integrated injection pipe 11, the adjustment piece 15, and the nut ring 14 is in communication with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16. A spray nozzle system for tunnel fire extinguishing, characterized in that it is extinguished by spraying water so as to form a fire barrier in the tunnel through the fire zone. The method of claim 1, The water injection angle control nozzle 10 and the double injection nozzle 1 installed above and below the distribution pipe 18 of the supply pipe 17 are formed at an angle of 100 degrees, and the spraying angle sprayed at 170 degrees is sprayed in the two lanes in the tunnel. Tunnel extinguishing spray nozzle system, characterized in that the water can be sprayed on the entire road width. The method of claim 1, An integral spray nozzle 20 having a venturi portion 4 'formed at an inside of the outlet 2 and a bolt portion formed at an outer surface thereof; A fluid (8) having a plurality of injection holes (8 ') having an inclination in one direction such that water is injected into the inner surface of the inlet (3) side of the integrated injection nozzle (20); The injection nozzle 20 including the fluid 8 is installed downward to communicate with the distribution pipe 18 of the supply pipe 17 installed in the tunnel 16 to inject water, The water injection angle adjusting nozzle 10 'including the integral injection pipe 10' having the inner surface tapered and the adjusting piece 15 'and the nut ring 14' is provided in the tunnel 16. Tunnel extinguishing spray nozzle system, characterized in that it is installed upward so as to communicate with the pipe 18 to adjust the spraying direction of water. The method of claim 3, The water injection angle control nozzle 10 'and the integrated injection nozzle 20 installed above and below the distribution pipe 18 of the supply pipe 17 are formed at an angle of 90 degrees, so that the spraying angle of spraying water is sprayed at 120 degrees. Tunnel extinguishing spray nozzle system.