KR20020075856A - Installation for fighting fire - Google Patents

Abstract

The present invention relates to a fire extinguishing device in a transport space such as a lorry, a trailer, etc., wherein the space is bounded by a first longitudinal side wall (3); The apparatus comprises a first spray head with its first spray head positioned obliquely downward at an angle α1 of 40 ° to 70 ° with respect to the vertical plane and located in a space proximate to the first longitudinal side wall 3, the vertical plane At least two spray heads of a second spray head positioned obliquely downward at an angle α2 between 40 ° and 70 ° with respect to the second longitudinal side wall of the carriage opposite the first side wall; And a drive source for supplying extinguishing medium to at least two spray heads.

In order to effectively extinguish a fire in a trailer or the like, the drive source is a high pressure drive source 50 for injecting a fire extinguishing medium at a pressure of 15 bar or more, the fire extinguishing medium is an aqueous fire extinguishing medium, and the two spray heads 1 and 2 are provided in the space ( 5) located at a height of 3.2 to 4 m above the bottom 11, and sprays the aqueous digestive medium at spraying angles β1 and β2 between 45 ° and 120 °, the two spray heads being in the direction of the spray heads. At least two nozzles 20, 21 directed and positioned in such a way that the high pressure spray head provides a spray having a high penetration force, and each of which inhales flue gas into the spray of the digestive medium and enhances the evaporation of the digestive medium. It comprises a suction part of the spray head.

Description

Fire extinguishing system {INSTALLATION FOR FIGHTING FIRE}

Passengers carrying vehicles such as lorry and trailers are rarely equipped with fire extinguishing systems. This is due to the environment being a problem for the fire extinguishing system. One of the problems is the need to extinguish and extinguish fires that originate inside the covered trailers carried by the carriages. The upper part of the trailer is typically covered with an aluminum cover, and the sides of the trailer are covered with tarpaulin, which prevents the extinguishing medium from being sprayed from the outside of the trailer into the cargo compartment of the trailer. it's difficult. For the above reasons, before the extinguishing medium is delivered to the fire zone, the fired article has a lot of time to burn, and the fire spreads away quickly. If the extinguishing medium is sprayed towards the side of the tarpaulin, the surface is cooled to protect the tarpaulin from burning, while the articles inside the tarp can continue to burn uninterrupted.

FR 2769508 describes fire extinguishing devices in a carriage for transporting vehicles. This known device is designed in a conventional manner in which in the event of a fire the entire vehicle is wetted with an extinguishant, whereby the spray head is fully covered with the extinguishing agent. Large amounts of extinguishing media are released in case of fire.

Vehicle tunnels are another environment that is problematic for fire extinguishing because fire extinguishing systems are not installed therein. As far as fire extinguishing and extinguishing is concerned, similar problems arise with regards to carriage carriage when trailers and the like are transported in tunnels. As a result, a likely fire extinguishing device hardly prevents the trailer from burning.

The present invention relates to a fire extinguishing device in a space for transportation of a lorry, trailer, etc., wherein the space is bounded by a first longitudinal side wall, the device having a first spray head of 40 relative to a vertical plane. A first spray head positioned obliquely downward at an angle α1 of ° to 70 ° and located in a space proximate to the first longitudinal side wall, and obliquely downward at an angle α2 of 40 ° to 70 ° with respect to a vertical plane And at least two spray heads of the second spray head which are located in a space proximate the second longitudinal side wall of the carriage opposite the first side wall, and a drive source for supplying the extinguishing medium to the at least two spray heads. It is composed. The space is preferably a railway carriage or a ship.

The invention also relates to a fire extinguishing device in a tunnel, preferably in a vehicle or train tunnel.

1 is a side view showing a fire extinguishing device of the present invention in a passenger car.

FIG. 2 shows the device in the direction of arrow A of FIG. 1 with the trailer.

3 is a view from above of the device of FIG. 1;

4-6 are views corresponding to FIG. 2 showing different spray head positions.

7 shows the device of the invention in a tunnel.

8 is a front view showing a spray head that may be used in the apparatus of the present invention.

An object of the present invention is to effectively extinguish a fire in a trailer or the like when a trailer or the like is transported in a space such as a carriage or a ship, and the fire is started in either the exterior or the interior of the trailer or the like. Another object of the present invention is to effectively extinguish a fire in a trailer and a carriage when a trailer or the like passes through a tunnel.

The first object of the fire extinguishing device in the space is that the drive source is a high pressure drive source for injecting the extinguishing medium at a pressure of at least 15 bar; The digestive medium is a water-based digestive medium; The two spray heads are located at a height of 3.2 to 4 m above the bottom 11 of the space 5, spraying the aqueous digestive medium at a spread angle of 45 ° to 120 °, At least two nozzles 20 and 21 directed and positioned in such a way that a high pressure spray head in a direction provides a mist-like spray having a strong penetration power, And a suction in each spray head which inhales into the spray and enhances the evaporation of the extinguishing medium.

Preferred embodiments of the invention are described in the attached claims 1 to 12.

The second object of the fire extinguishing device in the tunnel comprises a high pressure drive source containing an aqueous fire extinguishing medium and at least two spray heads, the drive source being adapted to inject the water extinguishing medium into the spray head, The first spray head is angled downward at an angle of 40 ° to 70 ° with respect to the vertical plane of the tunnel and positioned proximate to the first longitudinal side wall of the tunnel, and the second spray head is located between 40 ° and 70 ° with respect to the vertical plane. Positioned obliquely downward at an angle and proximate the second longitudinal side wall of the tunnel opposite the first side wall, the spray head being positioned at a height of 3.2 to 4 m above the bottom of the tunnel and having a spraying angle of 45 ° to 120 °. It is characterized in that it is arranged to spray the extinguishing medium. Preferably, the spray head comprises at least two nozzles directed and positioned in such a way that the high pressure spray head provides a spray having a strong penetration in the direction that the spray head is directed, and the flue gas to the spray of the extinguishing medium. And an intake at each spray head to inhale and accelerate evaporation of the digestive medium. Preferably, the spray head comprises at least two nozzles 20 and 21 directed and positioned in such a way that the high pressure spray head in the direction of the spray head provides a spray which has a strong penetration. And an intake at each spray head that inhales into the spray of the extinguishing medium and enhances evaporation of the extinguishing medium.

The present invention places the spray head in such a location, such as a position on a passenger car, that when activated the spray head immediately sprays the water-mist type of extinguishing medium after the fire burns a hole in the tarpaulin, Thereby the extinguishing medium is injected or injected with high momentum and strong penetrating force through the hole, the spray head, on the one hand, facing the goods in the trailer to extinguish the fire, and on the other hand it is located very high When functioning it is positioned to absorb heat from the hot flue gas, which enhances the evaporation of the aqueous digestive medium used in the device, and is thus based on the idea that the area immediately above the fire cools rapidly. By selecting a wide spread angle, some digestive media can be delivered to areas where hot gas regions do not exist to prevent the flue gas from rapidly and suddenly ignitioning. In addition, the apparatus and method provide effective fire protection of the entire vehicle from the outside. Positioning additional spray heads in the area under the hole of the tarpaulin works in a relatively inefficient way to extinguish a fire that started inside the vehicle (trailer), which only cools the tarp. This is because the released extinguishing media does not affect the fire in any way. Therefore, the spray head is not located at a height of 0.5 to 3 m above the space (e.g. passenger car).

The present invention is very effective in extinguishing fire with a very small amount of extinguishing media in the applications / environments described above.

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

1 and 2 show a carriage 5 having a fire extinguishing device having several spray heads 1, 2 closely mounted along both sidewalls 3, 4 of the carriage. The width of the carriage, for example the distance between the side walls 3 and 4, is 3 to 5 m. Reference numeral 6 denotes a pipe system for supplying the extinguishing medium in the form of an aqueous liquid to the spray heads 1, 2 through the valves 7, 8. The high pressure drive source for injecting the aqueous liquid into the pipe system 6 is indicated by reference numeral 50. The high pressure drive 50 providing a pressure of at least 15 bar and up to 200 bar and even 300 bar may be, for example, a high pressure pump to which a container containing an aqueous liquid is connected or a hydraulic accumulator. The spray head is preferably of the type having several side nozzles 20 and a central nozzle 21 (see Fig. 8), and has a liquid spray having a high penetration force at high pressure, for example at 20 to 200 bar. extinguishing media in the form of liquid mist. Although FIG. 8 shows a spray having a plurality of nozzles, a spray head having only two (or any number of two or more) divergent nozzles may be employed. The spray heads 1, 2 may preferably be configured as described in WO 92/20453. Many detectors 9 and 10 are located at the ceiling level of the car. In the event of a fire, these detectors 9 and 10 signal the opening of the respective valves 7 and 8. For example, the detector 9 opens the valve 7, after which the extinguishing medium flows into the spray head 1.

The spray heads 1, 2 are directed obliquely downward at an angle α1 of 50 ° with respect to the vertical side. The starting angle, ie the spraying or output angle β1 = β2 of the spray head, is 90 °. The spray heads 1, 2 are located at a height of 3.5m above the floor 11.

Reference numeral 12 denotes a trailer having a tarp of plastic material and an aluminum roof (cover). The tarp covers the sides 130, 140 of the trailer 12.

If a fire starts in the trailer 12, the fire continues until a hole appears in the tarpaulin. Since the heat from the fire is upwards, the holes resulting from the fire always appear close to the trailer ceiling 15 on top of the tarpaulin. When a fire is detected, each valve is provided with a signal. For example, when the detector 10 detects a fire, the detector signals the valve 8 to open, and the extinguishing medium may flow into and out of the spray of the extinguishing zone 13. The check valve 31 prevents the extinguishing medium from flowing into the last five spray heads on the right side which are part of the adjacent extinguishing zone 17. Thus, the one or more spray heads 2 inject downwardly obliquely toward the burning article of the extinguishing medium spray. The central extinguishing media jet forms an angle of α1 = 50 ° with the vertical sidewall. By evaporating the extinguishing medium, this eruption suppresses the fire and quickly cools the fire location. Since hot flue gas is present around the spray head and this hot flue gas is sucked into the extinguishing medium release (spray) directed towards the fire zone, evaporation occurs quickly. Because of the wide spread angle β1 = β2, in order to cool the tarpaulin / article, part of the extinguishing medium is sprayed almost directly into the lower peripheral area. The other part of the extinguishing medium is sprayed almost horizontally towards the tarp into the upper periphery near the trailer ceiling 15. The last mentioned part prevents the flue gas from igniting quickly and suddenly, and prevents the fire from spreading to other areas, such as the area of the carriage (16).

4 to 6 show spraying and spraying angles alternative to that of FIG. 2 for the spray head. The angle α1 with respect to the vertical plane is in the range of 40 ° to 70 °, preferably 45 ° to 60 °. The spraying angles β1 and β2 are in the range of 45 ° to 120 °, preferably 90 ° to 120 °.

The height of the spray heads 1, 2 on the bottom 11 is in the range of 3.2 to 4 m, preferably 3.4 to 3.8 m. Preferably, the spray head is not located proximate to the side walls 3, 4 at a height of 0.5 to 3 m from the carriage floor 11.

7 shows a fire extinguishing device according to the invention mounted in a vehicle tunnel 5 ′. Meanwhile, the tunnel may also be a train tunnel. In the drawings, similar reference numerals are used for similar elements as in FIGS. 1 and 2. Thus, reference numeral 50 'denotes a high pressure drive source for injecting an aqueous liquid into the pipe system 6. The spray heads 1 ′, 2 ′ are located along the side walls 3 ′, 4 ′ of the tunnel in the same manner as in the carriage of FIG. 1. The spray heads 1 'and 2' are located at angles of α'1 and α'2, respectively, which are 60 ° with respect to the vertical plane. An angle α1 in the range of 40 ° to 70 °, preferably 45 ° to 60 ° is believed to produce good results in terms of extinguishing and suppressing. The appropriate angle depends on the height of the spray heads 1 ', 2' above the floor level 11 'of the tunnel and its distance from the object, ie the vehicle / trailer / article to be protected in the event of a fire. The spraying angles β1 and β2 are 45 °, and are narrower than the spraying angles of FIGS. 1 to 6. This is because the tunnel 5 'is wide with respect to the width of the carriages of FIGS. 1-6, whereby the distance of the spray heads 1', 2 'from the object to be protected is greater than that shown in FIGS. Because. Spraying angles β1 and β2 in the range of 45 ° to 120 °, preferably 90 ° to 120 °, are considered to produce good results.

The present invention has been described with reference to only one example. Therefore, it should be pointed out that details of the invention may vary in many respects within the scope of the appended claims. Thus, the apparatus can be employed in other spaces for transportation of lorry, trailer, etc., in addition to the carriages.

Claims (14)

A fire extinguishing device in a transport space such as a lorry, a trailer, etc., wherein the space is bounded by a first longitudinal side wall (3); The apparatus comprises a first spray head with its first spray head positioned obliquely downward at an angle α1 of 40 ° to 70 ° with respect to the vertical plane and located in a space proximate to the first longitudinal side wall 3, the vertical plane At least two spray heads of a second spray head positioned obliquely downward at an angle α2 between 40 ° and 70 ° with respect to the second longitudinal side wall of the carriage opposite the first side wall; In a fire extinguishing device comprising a drive source for supplying a fire extinguishing medium to at least two spray heads, The drive source is a high pressure drive source 50 for injecting a digestive medium at a pressure of 15 bar or more, Digestive media are aqueous digestive media, The two spray heads 1 and 2 are located at a height of 3.2 to 4 m above the bottom 11 of the space 5 and spray the aqueous digestion medium at spraying angles β1 and β2 between 45 ° and 120 °. Wherein the two spray heads are configured to extinguish the flue gas and at least two nozzles 20 and 21 that are directed and positioned in such a way that the high pressure spray head provides a spray having a strong penetration in the direction of the spray head. And a suction portion at each spray head for inhaling the spray of media and enhancing the evaporation of the extinguishing medium. 2. The spray heads (1) and (2) of claim 1, characterized in that the spray heads 1, 2 are mainly at least opposed to each other and arranged to spray away from the respective side walls 3, 4 close to where the spray head is located. Fire Extinguisher. 2. Fire extinguishing device according to claim 1, characterized in that the spray head (1, 2) is directed at an angle (α1, α2) of 45 ° to 60 ° with respect to the vertical plane. 2. Fire extinguishing device according to claim 1, characterized in that the spray head (1, 2) is located at a height of 3.4 to 3.8 m above the bottom (11) of the space (5). 2. Fire extinguishing device according to claim 1, characterized in that the spray head (1, 2) is arranged to spray at a spraying angle (β1, β2) of 90 ° to 120 °. 2. The spray head (1) according to claim 1, wherein the spray heads (1) and (2) are provided with a fire extinguishing medium in an area extending from the lower peripheral area which mainly extends straight down toward the bottom (11) of the space (5). A fire extinguishing device, characterized in that it is arranged to transmit mainly to the upper peripheral area extending horizontally. 7. The fire extinguisher according to claim 6, wherein said upper peripheral region extends up to about 30 degrees upward with respect to the floor level. 7. Fire extinguishing device according to claim 6, characterized in that it comprises several spray heads (1, 2) extending in the longitudinal direction of the carriage located along both side walls (3, 4) of the space (5). . 2. Fire extinguishing device according to claim 1, characterized in that the spray head (1) comprises a central nozzle (21) surrounded by a plurality of obliquely positioned nozzles (20). 10. The area according to claim 1, wherein the area close to the side walls 3, 4 of the space and above the bottom 11 of the space 5 is no spray head. Fire extinguishing system characterized in. 11. The fire extinguishing device according to claim 10, wherein the space has a width of 3 to 5 m. 12. Fire extinguishing device according to claim 11, characterized in that the space is a carriage (5). In a fire extinguishing device in a tunnel, preferably in a vehicle or train tunnel 5 ', And a high pressure drive source 50 'containing an aqueous fire extinguishing medium, and at least two spray heads 1' 2 ', the drive source being adapted to inject an aqueous fire extinguishing medium into the spray head. The first spray head 1 'is located close to the first longitudinal side wall of the tunnel and faces obliquely downward at an angle α'1 of 40 ° to 70 ° with respect to the vertical plane, and the second spray head 2' Located close to the second longitudinal side wall 4 'of the tunnel opposite the first side wall and facing obliquely downward at an angle α'2 of 40 ° to 70 ° with respect to the vertical plane, the spray head being directed to the bottom of the tunnel ( 11 ') a fire extinguishing device, positioned at a height of 3.2 to 4 m above and arranged to spray the aqueous fire extinguishing medium at a spraying angle (β1, β2) of 45 ° to 120 °. 14. The spray head (1 ', 2') according to claim 13, wherein the spray head (1 ', 2') comprises at least two nozzles directed and positioned in such a way that the spray head of the high pressure in the direction the spray head is directed provides a spray which has a strong penetration. And an intake at each spray head for inhaling flue gas into the spray of the extinguishing medium and improving evaporation of the extinguishing medium.