KR100500785B1 - Fire extinguishing facility - Google Patents

Abstract

The present invention relates to a fire extinguishing system in a space, the apparatus being provided near spray heads (1a ', 2a') and spray heads of the same type that are capable of discharging fire extinguishing liquid in the form of finely divided liquid mists with large penetration capabilities. With simultaneous suction. The spray heads 1a ', 2a', 1b ', and 2b' have a floor horizontal surface 24 of the room in order to obtain a facility that has a simple structure and a very efficient fire extinguishing, which purifies the smoke and at the same time requires very little water. From the pipes 3a ', 3b' having suction openings 67a ', 67b' at a distance of 1m to 10m from and spray openings 45a ', 45' near the floor horizontal plane, whereby the spray head Is arranged to be sprayed from the suction opening in the direction of the spray opening to cause suction to occur in the suction opening.

Description

Fire extinguishing equipment

The present invention relates to a fire extinguishing facility in a space, the same method being used to produce fire extinguishing fluid in the form of finely divided mists with large penetration capabilities and to create a simultaneous suction state near the spray head. With a spray head.

Such facilities are known from WO 92/20453, WO 92/22353 and WO 94/16771. These known plants have proven to be very good at extinguishing. In order to prevent the droplet size of the extinguishing liquid from becoming too large, an apparatus is disclosed in WO 94/08659 in which gas is mixed into the extinguishing liquid in the plant. As a result of the gas mixing, it is possible to keep the droplet size relatively small while emptying the hydraulic accumulator.

Some rooms, like rooms for machines such as computers, include not only expensive machines, but also bundles of electrical cables, causing large losses in the event of a fire. Electrical cables generally have a plastic envelope, such as PVC. If a fire breaks out in such a room and these cables catch fire, toxic smoke is generated, which is dangerous to humans and destroys sensitive machines such as computers. Facilities known to extinguish such fires are not capable of rapid extinguishing with a small amount of water. The use of other media for extinguishing, not water-based extinguishing fluids, for example halogens, generates chemicals that are harmful to the environment. For this reason, it is more preferable to use water-based digestive fluids. The reason why the amount of water used to extinguish a fire is important is that the loss due to water can be reduced.

The present invention relates to a new plant, which preferably has a simple structure and, for example, very effectively extinguishes a fire in a space such as a room, so that the amount of extinguishing liquid used to purify smoke gas and smoke and simultaneously use it. It is a facility that can do less.

For this purpose, the installation according to the invention is mainly characterized by a spray head arranged in a pipe having a suction opening at a distance of 1 m to 10 m from the floor horizontal plane of the space and a spray opening near the floor horizontal plane. Is arranged to spray from the suction opening in the direction of the spray opening so that suction occurs in the suction opening.

In order to obtain a better effect in a larger space, the pipe constitutes a part of the pipe system consisting of a plurality of spray openings and a plurality of suction openings for spraying digestive fluid at least along the floor from the pipe system in the form of fog, Accordingly, the pipe system further has a first extended pipe section and a second extended pipe section, and an intermediate pipe section connecting the first extended pipe section and the second extended pipe section, whereby the spray opening is The second extending pipe section is installed in its longitudinal direction, the suction opening is installed in its first extending pipe section in its longitudinal direction, the second extended pipe section is placed near the floor horizontal plane of the room and the first extended The pipe section is placed 1m to 10m above the floor horizontal.

In large spaces, the facility has another pipe system arranged at a distance from the pipe system so that the pipe system is placed near the opposite wall of the space. Smoke is the result of effective inhalation without the mixing of smoke from space. For effective smoke intake and fire extinguishing on the subfloor of the room, the facility further comprises a pipe net disposed on the subfloor, which is thus arranged on the pipe net and at least one spray for spraying extinguishing fluid into the pipe net in the form of a mist. And the pipe net is provided with a spray opening for spraying fog out of the pipe net and a suction opening for sucking smoke into the pipe net and generating a flow of digestive fluid from the spray opening toward the suction opening. Having a first extended pipe portion and a second extended pipe portion, and an intermediate pipe portion connecting the first extended pipe portion and the second extended pipe portion, whereby the first extended pipe portion is at least essentially two; Second extended pipe section Parallel to the directed spray openings and the suction openings are arranged in the pipe section extending in the longitudinal direction of the elongated pipe parts.

More preferred embodiments of the invention are set forth in the appended claims 2 to 19.

According to one aspect, the invention relates to a fire extinguishing plant in a space, in particular in a subfloor, whereby the plant is characterized by a pipe net arranged in a subfloor, the pipe The net is of a type capable of producing a fine misty extinguishing medium and is capable of simultaneous suction near the spray head and comprises at least one spray head disposed in the pipe net, the pipe net being a pipe. And a spray opening for injecting mist from the net and a suction opening for inhaling smoke and smoke gas into the pipe net to produce a flow of digestive medium from the injection opening toward the suction opening. Preferred embodiments are described in the appended claims 21 to 27.

The great advantage of this installation according to the invention is that the fire can be extinguished with simple equipment and at the same time the smoke is effectively cleaned. The plant can also be extinguished in an "environmentally friendly" way by using a very small amount of extinguishing fluid, which causes minimal material loss.

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

1 is a selected embodiment of the present invention,

2 is a view showing in more detail the drive unit of FIG.

3 is a view showing in detail the second view,

4-6 is a figure which shows the detail of this invention as another solution.

(Example)

In FIG. 1, reference numeral 100 denotes a room equipped with an extinguishing facility in accordance with the present invention. The room 100 shown is a room designed for computers 101 and 102 and having openings 103-105 as subfloors 23 of the room. However, this room can in principle be any kind of room. Subfloor 23 includes many cables (not shown) for computers 101 and 102 and other machines (not shown). Openings 103-105 are designed for cables that are connected to computers 101 and 102, and supply cooling air to the computers. The invention is particularly suitable for use where there are expensive machines in the room which can be damaged by smoke and / or water. Reference numerals 200 and 300 denote thermal sensing sprinklers installed near the ceiling of the room 100. These sprinklers are rather a type capable of producing a digestive fluid in the form of finely divided mists with large penetrating or propulsive forces and simultaneous inhalation near the spray head. Because of its ability to penetrate, extinguishing fluid can reach the site of the fire. Such sprinklers are disclosed in WO 92/20453, WO 92/22353, and WO 94/16771.

This installation consists of two rectangular pipe systems 3a ', 3b' arranged at a distance from each other on the subfloor 23 at the end wall of the room 100, and is of the same type of sprayer as sprinkler 200 and 300. Heads 1a ', 2a', 1b ', 2b' are arranged in the pipe system. In other words, the spray head under high pressure is capable of producing extinguishing liquid in the form of finely divided mists with large penetrating ability and simultaneously inhaling near the spray head. Spray heads 1a ', 2a', 1b ', 2b' are of the types described in International Publications WO 92/20453, WO 92/22353 and WO 94/16771.

The pipe system 3a 'connects the first extended pipe section 910a', the second extended pipe section 811a 'and the first and second extended pipe sections, and each spray head 1a' therein. And 2a ') are arranged in the middle pipe sections 12a' and 13a '. The second extended pipe section 811a 'may have several, for example three to ten spray openings 45a', and the first extended pipe section 910a 'may have several, for example three It has ten suction openings 67a '. The spray opening 45a 'is disposed in the longitudinal direction of the pipe section 811a', and the suction opening 67a 'is disposed in the longitudinal direction of the pipe section 910a'. The function of the suction opening 67a 'is to suck smoke into the pipe net 3a'.

The pipe section 811a 'is disposed adjacent to the floor plane 24 and sprays the fog of the extinguishing fluid essentially in the floor direction. Pipe section 910a ′ is disposed at a distance of about 3 m above the floor horizontal surface 24. The distance will of course vary depending on the application. The distance between the pipe sections 811a 'and 910a' between about 1 m and 5 m produces good results in most of the practical applications that occur, but if the room is very high, this distance can reach about 10 m. Pipe sections 910a 'and 811a' are essentially disposed in the same plane across the floor plane 24.

Pipe sections 811a ', 910a' are made of plastic and may have a diameter of, for example, 100mm to 150mm. The diameter of the spray opening or the suction opening is preferably 5 mm to 40 mm.

The pipe system 3b 'is made like a pipe system 3a' and is arranged with respect to the wall and floor horizontal surfaces 24 of the room as if the pipe system 3a 'is arranged on the wall and floor horizontal surfaces of the room. Corresponding parts are denoted by corresponding reference numerals, except that "a" is replaced by "b" in the reference numeral. The pipe system 3b 'acts in the same way as the pipe system 3a'.

A rectangular pipe net, generally indicated at 3, is arranged in the subfloor 23 of the room 100. The upper horizontal plane 24 of the subfloor is indicated by a dashed line. Two spray heads 1, 2 of the same type as the spray heads 1a ', 2a', 1b ', 2b' are arranged in the pipe net 3.

The pipe net 3 has a first extended pipe portion 910 and a second extended pipe portion 811. The pipe portion 910 is originally arranged in the same plane as the pipe sections 910a 'and 811a', and the pipe portion 811 is arranged in the same plane as the original pipe sections 910b 'and 811b'. The diameters of the pipe portions 910, 811 are for example 100 mm to 150 mm, and they are made of plastic. The pipe parts 910, 811 are connected at their ends to the first intermediate pipe part 12 on which the spray head 1 is arranged and to the second intermediate pipe part 13 on which the spray head 2 is arranged. The spray heads 1 and 2 are arranged in the center of the pipe portions 12 and 13, respectively, but it is also conceivable to be located elsewhere in the pipe net 3. The spray heads 1 and 2 are arranged to be sprayed in opposite directions, the spray head 1 being sprayed toward the pipe portion 811, while the spray head 2 is sprayed towards the pipe portion 910. The first pipe portion 910 has four spray openings 5 and four suction openings 6. The spray opening 5 in the pipe portion 910 is separated from the suction opening 6 by the plug 106. The second pipe part 811 also has four spray openings 4, four suction openings 7 and a plug 107 accordingly. The spray opening 4 is arranged so as to spray the extinguishing liquid toward the suction opening 6. The spray opening 5 is arranged to spray the extinguishing liquid toward the intake opening 7. The diameters of the spray openings 4, 5 and the suction openings 6, 7 are preferably 5 mm to 40 mm, depending, for example, on their application and the number of holes 4 to 7.

The driving source for supplying the extinguishing liquid to the sprinkler 200, 300, the spray heads 1a ', 2a', 1b ', 2b', and the spray heads 1, 2 is indicated by the reference numeral 14, respectively. And a drive unit consisting of hydraulic accumulators 15 and 15 'consisting of three pressure containers 16' having a 50 liter capacity and two pressure containers 16a and 16b each having a 10 liter capacity. The pressure containers 16 ', 16a, 16b contain a liquid based on water, i.e., a digestive fluid consisting of with or without additives in water. The pressure container 16 'is filled with approximately 80% before emptying the container or starting extinguishing. The number and size of pressure containers varies depending on their application and the size of the room 100. For large rooms, pressure containers usually require large capacity. The capacity of the pressure containers 16a, 16b will be, for example, half the size of a small room.

Sprinklers 200 and 300, spray heads 1a 'and 2b', and pressure containers 16 ', 16a and 16b for supplying the digestive fluids to the spray heads 1 and 2, respectively, are connected via conduit 108. It is connected to a gas container 21 having a capacity of liter. Each of the rising tubes 17 'is disposed in the pressure container 16'. The capacity of the gas container 21 is selected based on the volume of the room 100 and other factors. The gas is nitrogen gas at a pressure of 200 bar. Other pressure gas vessels 21 can be used: the pressure is typically from 100 bar to 300 bar before the start of extinguishing. The advantage of using nitrogen is that the digestive fluid can be properly weighted so that the liquid can initially settle on the floor, but later the gas content of the digestive fluid rises, thus reducing the oxygen content in the room 100. To extinguish or at least control fire. In place of nitrogen gas, other non-combustible gases such as argon or carbon dioxide may be used.

Reference numeral 115, referring to FIG. 2, prevents the medium from flowing into the rightmost pressure container 16 'via the rising tube 17' of the two pressure containers 16 'on the left. The reverse flow represents a non-return valve that allows.

2 shows the drive unit 14 in more detail. 3 shows details of FIG. The lifting tube 17 'of the pressure container 16' has three lateral openings 18 'at the bottom such that about 70% of the lifting tube is above the lateral opening and about 30% is below the opening. . At the bottom of the riser tube 17 ', there is a supply opening 19'.

3 is an enlarged view of the lower portion of the riser tube 17 ', and the lower portion of the riser tube 17' is shown to be contracted by the throttle 20 '. Throttle 20 'is formed below the riser tube 17' under the lateral opening 18 'of the riser tube 17'. The throttle 20 'is formed by the contraction of the rise tube 17'. The shrinkage forms an opening with a diameter d 2 = 0.5 mm, while the ordinary diameter d 1 of the riser tube 17 ′ generally ranges from 8 mm to 15 mm. The throttle 20 'preferably has a diameter of d2 = 0.2 mm to 4 mm, most preferably 0.3 mm to 2 mm. Selection of the diameter d2 of the throttle 20 'includes the type of spray heads 200, 300, 1a', 2a ', 2b', the number of spray heads, the pushing pressure of the gas container 21, the type of gas, It depends on many factors such as the diameter d1 of the riser tube 17 'and the size and number of the lateral openings 18' and the intended use of this installation, ie the type of fire extinguishing.

The pressure containers 16a and 16b have gas supply pipes 120a and 120b. This allows their contents to be connected to a conduit 108 to supply gas from the gas container 21 to the pressure container.

Reference numeral 122 denotes a non-return valve that prevents fluid from flowing from the pressure container 16b to the gas container 21 or the pressure container 16a.

Before use, ie before the start of extinguishing, the pressure container 16a is filled with water. The outlet 121a of the gas supply pipe 120a is disposed at a sufficiently long distance, for example, about 20 to 30 centimeters from the opening 130a at the bottom of the pressure container 16a. Water is passed through the opening 130a out of the pressure container to the external feed pipe 110 which is led to the spray heads 1 and 2. It is believed that a minimum distance of at least about 4 cm will be required. This distance is required so that gas does not flow into the opening 130a before the water in the pressure container 16a is emptied. A duct leading to the external feed pipe 110 leading to the spray heads 1 and 2 is indicated by 131a.

Referring to FIG. 2, the pressure container 16b is filled with about 80% water before being emptied. In the gas space of the upper portion of the pressure container 16b, nitrogen gas is filled at a high pressure from the gas container 21 so that pressure forms, for example, 140 bar before the emptying of the accumulator 15 starts. The pressure container 16b has a rising tube 17 extending downward from the pressure container and leading to the outer supply pipe 110. In connection with the rising tube 17, a throttle 121 is disposed. The function of the throttle 121 is to provide flow resistance, which is large enough for the water to allow the pressure container 16a to empty the water for the first time, after which the emptying of the pressure container 16b through the throttle can begin.

The pressure container 16a is used to purify the smoke and smoke gas, and the pressure container 16b provides an extremely finely divided mist of water droplets and nitrogen gas.

The installation according to FIG. 1 is operated by means of signals from a smoke detector 111 located near the ceiling height of the room 100. This signal causes the opening of the solenoid valve 109 located between the gas container 21 and the pressure containers 16 ', 16a', 16b '. It is conceivable that the sprinkler 200,300 of this installation is of a pressure balanced type, but optionally released by heat, for example as disclosed in publications WO 92/158370 and WO 94/1677. When the valve 109 opens by signal, nitrogen gas enters the pressure containers 16 ', 16b, in which an initial pressure is formed, for example, 140 bar. This pressure is created in the gas space of the pressure containers 16 ', 16b in the upper portion of the pressure container. Referring to FIG. 2, the gas spaces in the pressure containers 16 'and 16b make up about 20% of the volume of the pressure container. Nitrogen acts as a propellant gas that drives water out of the pressure containers 16 'and 16a. Due to the fact that the pressure container 16a does not have a rising tube for water, the water does not freeze, but instead, the pressure container 16a actively empties the water by the pressure of the gas container 21. After the pressure container 16a empties the water, the water flows from the pressure container 16b and at the same time the gas flows into the external supply pipe 110 via the opening 130a, by the pressure of the pressure container, the throttle 121. ) Flows through the duct 131a and mixes with the gas. The ratio of the amount of gas coming out of the pressure container 16a and the amount of water coming out of the pressure container 16b is, for example, 300: 1, and a range of 100: 1 to 500: 1 is appropriate. This produces very good fog from the spray heads 1, 2. The gas pressure in the upper portion of the pressure container 16b causes water to flow to the external supply pipe 110 for the first time.

At the same time as the pressure container 16a is emptied (or slightly delayed in time), the water is emptied from the supply opening 19 'or the lateral opening 18' of the rising tube 17 'as the pressure container 16' is emptied. Flows through). When emptying the pressure container 16 ', its water level is lowered, resulting in an increase in the volume of the gas space of the pressure container for the gas. The ratio of gas / water present in the riser tube 17 'is determined based on the position of the water level in the pressure container 16'. Initially, the lateral opening 18 'and the supply opening 19' supply only water through the throttle 20 to the riser tube 17 '. The gas should not be mixed with the extinguishing fluid at the beginning of extinguishment, so that the initially required suction at the intake openings 6, 7, 67a ', 67b' is not achieved. Water is used to inhale and purify smoke gas or smoke, and at the same time the fire is cooled. When the water level reaches the height of the lateral opening 18 ', for example, when 1 to 3 liters of water is sprinkled from the pressure container 16', the mixing of nitrogen gas in the water causes It begins by flowing through the directional opening 18 '. The gas pressure then drops considerably to values below 140 bar. Since the gas pressure in the pressure container 16 'has dropped considerably, the amount of gas required to obtain droplets, for example, 10 to 20 μm, is relatively large. The size of the droplets increases with increasing pressure if the remaining parameters do not change. Despite the fact that the gas is mixed in the digestive fluid, smaller droplets of higher velocity are obtained, and the intake openings 6, 7, 67a ', 67b' can be operated in the desired manner, and at the onset of evolution Because of the strong initial suction that occurs, a flow of media thus occurs from the spray openings 4, 5, 45a ', 45b' to the suction openings 6, 7, 67a ', 67b'. Emptying the pressure container 16 'continues until the pressure container is completely empty if the valves 109 and 160 are not closed.

Referring to FIG. 3, as a result of the throttle 20 ', a relatively large pressure difference p1-p2 is formed in the lateral opening 18', from the outer region of the lift tube 17 'to the inner region. This pressure difference can be trimmed to, for example, 50 bar, and when the water level of the pressure container 16 'is settled to a height below the lateral opening 18', nitrogen gas is effectively passed through the opening 18 '. Let it flow Due to the fact that gas can effectively flow into the lateral opening 18 ', as a result, the droplet size of the spray emitted from the spray heads 1a', 2a ', 1b', 2b ', 200, 300 is very small, For example, it can be obtained at the last stage of evolution, from 10 to 20 μm or smaller than 10 μm. Since gas mixing is effective, a small amount of water is sufficient.

The lateral opening may of course be arranged at other heights of the riser tube 17 '. Through the height and size of the lateral opening, it is possible to obtain the desired droplet size and concentration of the digestive fluid during the emptying process. This places the throttle below the lowest lateral opening, whereby a large pressure difference is obtained at all lateral openings, which is advantageous for attempting to mix as much gas as possible into the liquid. However, it is conceivable that the lateral opening can be disposed above or below the throttle 20 '. It is important, however, that the throttle 20 'is arranged below the highest lateral opening, whereby a large pressure difference is at least obtained in this lateral opening, and when the water level sinks to the height of this opening, Flow gas through.

If the throttle 20 'is formed by the aperture with a diameter d2 sufficiently small relative to the diameter of the lateral opening 18', the pressure difference p1-p2 becomes very large and liquid can flow through the lateral opening. The diameter of the lateral opening is satisfactorily between 0.5 mm and 5 mm, most preferably between 1 mm and 3 mm. According to the embodiment of FIG. 1, the lateral opening has a diameter of 2 mm.

The rising tube 17 'in the pressure container 16' does not always require a lateral opening 18 'and a throttle 20'.

The pipe net 3 forms two streams of media swept in opposite directions in the subfloor 23 along the floor, and by the pipe systems 3a ', 3b', smoke is sucked in the upper part of the room 100. This also happens. This can be explained by:

When the equipment of FIG. 1 is operated after the smoke detector 111 sends a signal to the drive unit 14, the spray heads 200, 300, 1, 2, 1a ', 2a', 1b ', 2b' are free of nitrogen. Start spraying misty liquid spray for the first time. The spray heads 1a ', 2a', 1b ', 2b' are sprayed along the middle of the pipe systems 3a 'and 3b', so that they are first purified (air purified from smoke or smoke) and later nitrogen gas. Water fog including the is discharged from the spray opening (45a ', 45b'). The spray heads 1, 2 spray along the middle portions 12, 13 of the pipe system 3, so that initially purified air is sprayed from the spray openings 4, 5, and later mist is sprayed ( Sprinkled from 4,5). At the same time as the spray heads 1a ', 2a', 1b ', 2b', 1, 2 are sprayed, they make a strong suction behind them, the suction being respectively at the suction openings 67a ', 67b', 6, 7 Occurs. Smoke is sucked into the intake opening and absorbed by the mist-like spray from the spray head. This absorbed smoke is absorbed into the extinguishing liquid of the pipe systems 3a 'and 3b' and the pipe net 3. As a result of the fact that the pipe systems 3a ', 3b' and the pipe net 3 inhale smoke or smoke gas, the air in the room 100 is effectively purified from smoke or smoke gas, and any damage or harmful Does not cause

In order to collect the smoke residue, the intermediate pipe portions 12, 13 also have a concave space (not shown) in the other straight pipe portion. This space is arranged on the pressure side of the spray heads 1, 2. The pipe systems 3a ', 3b' may have a collection vessel at the bottom, shown in FIGS. 5 and 6 and indicated by reference numerals 200 "'and 200" ".

When the pressure containers 16a, 16b, 16 'have emptied the digestive fluid, the room 100 and subfloor 23 are purged from smoke and smoke gas, and the subfloor is filled with a digestive fluid mist containing nitrogen gas. The room, especially its lower part, is filled with a mist-like spray that sinks towards the floor after a while. Due to the water in the digestive fluid, the digestive fluid fog in the subfloor 23 and the digestive fluid fog near the floor height 24 are relatively heavy, and the digestive fluid fog sprayed onto the subfloor 23 and the digestive fluid fog on the floor are initially subfloor. They remain at the floor level of the room and the room, and extinguish the fire that smokes. Typically, after a few minutes, the water slowly sinks and the nitrogen gas frees from the water and begins to rise into the room. This is because it is lighter than air. When the nitrogen gas goes up, it extinguishes all possible fires where it still smokes in the room on the way up. Nitrogen gas enters the computer (101,102) because of the "chimney effect" and nitrogen gas rises up the computer and functions like a chimney. Nitrogen gas flows into the computers 101 and 102 through the openings 103 to 105. As nitrogen gas enters the computers 101 and 102 and rises along their heights, all possible smoke in the computer is extinguished.

The operation of this system can also be represented as follows-according to the above.

1. In the first stage, smoke, smoke gas, and heat are drawn out of the room by sprinkling water only at high pressure through nozzles (1, 2, 1a ', 1b', 2a ', 2b'). When water is sprayed, a strong suction effect occurs and smoke is drawn into the pipe net 3 and the pipe systems 3a 'and 3b' must pass through the purified water fog in the pipe net and the pipe system. When only water fog, ie without nitrogen, is sprayed through the pipe net and must pass through at least one elbow pipe, the fog changes back to water, collects in a tank (not shown) or falls to a sewer (not shown) Therefore, contaminated water is prevented from entering the room 100 containing sensitive electronic equipment. The net or mesh of a pipe net or pipe system (not shown) can have the same effect as an elbow pipe, preventing the spread of smoke containing extinguishing gas into the room or subfloor space. Purified air (no smoke gas, smoke, or no water) is thus sprayed from the pipe net or pipe system through the exhaust openings 4, 5, 45a ', 45b'.

2. When the gas enters the water fog, or when the accumulators 15 and 15 'are used, the water droplets become more separated and obtain a higher velocity, and thus can pass through the elbow pipe without changing back to water. In this case, the extinguishing liquid mixed with gas may come out of the pipe net 3 and the pipe systems 3a 'and 3b' and extinguish the fire.

3. Fire extinguishing in the subfloor 23 is achieved by mixing the water fog with gas, which creates a gas / water mixture that is heavier than air. The pressure is also increased at the subfloor and when sufficient concentration is achieved, the gas / water mixture rises into the computer via the air inlets 103 and 105. Another reason is that the nitrogen / water mixture is colder than the temperature at the top of the room, so the mixture rises to a warmer room. Tests show that higher computers and equipment evolve faster. The chimney effect is more effective for higher installations.

Thus, the system of FIG. 1 functions in such a way that, in simple terms, the composition of the mist is changed by spraying a mist containing a relatively large amount of nitrogen gas and very little water, and then the smoke is sucked out and purified by spraying water fog. do. The water content of the fog forces the nitrogen gas down towards the floor. As the water sinks further, the nitrogen gas separates from the fog and rises, which extinguish any possible fire that is still smoking. Electricity is not necessary to operate this facility. This is a great advantage because electricity is not always available when a fire occurs.

The present invention has been described above with respect to only one embodiment. It can be pointed out that the present invention can be changed in various ways within the scope of the enclosed claims for details thereof. Thus, the width and shape of the pipe system and the pipe net may vary, for example, the number of spray aids may vary, and the number of spray and intake openings may also vary. The number of spray openings and suction openings of the intermediate pipe section may be, for example, 2 to 20. It is also conceivable that the intermediate pipe section, especially if the intermediate pipe section is long, will have simultaneous intake near one or more spray heads and types of sprays of the type capable of generating fire extinguishers in the form of finely divided water mists with large penetration capabilities. will be. By arranging such spray heads in turn at appropriate distances and spraying them in the same direction, augmentation of the finely divided water mist by the aspiration is achieved. It is also conceivable that one spray head or more can be placed in the first extended pipe part or the second extended part, and in the middle part, think of the spray heads that replenish or replace the spray head / spray heads. Can be. The first elongated pipe section is not necessarily directed parallel to the second elongated pipe section, although this structure is simple, it takes up very little space in the room and produces good results. When the extinguishing fluid source of the hydraulic accumulator is used, for example, the throttle can alternatively be installed, such as an opening made in the pipe wall of the rising tube at the bottom end of the riser tube. The number of side openings of the riser tube can be much larger than shown in the figure. It is also conceivable that there can be only one side opening. The suction unit in the upper part of the room or space, ie the pipe system, may be a vertical pipe with only a suction opening at the top and elbow (to prevent water from flowing out and entering the room) and a spray opening at the bottom. In order to achieve a more even distribution, however, it is more preferable to use a lower pipe at the floor height or a long pipe at the ceiling height. Regarding a small room, one pipe in the room is enough; Larger rooms require two or more pipes with double spray heads at each end of the pipe. It can be pointed out that the present invention can be understood as a driving source without a hydraulic accumulator. However, the hydraulic accumulators according to the enclosed claims and FIG. 1 are particularly suitable for producing such finely divided liquid mists as required by the present invention.

Claims (27)

The digestive fluid can be produced in the form of finely divided mists with a large penetration ability, and the spray heads 1a ', 2a', 1b ', 2b', which can generate a simultaneous suction state near the spray head. 1 ", 1" ', 1 "", 2 ""), The spray heads 1a ', 2a', 1b ', 2b', 1 ", 1" ', 1 "", 2 "" have a suction opening 67a', at a distance of 1 to 10 m from the floor height 24 of the room. 67b) and pipes (3a ', 3b', 3 ", 3" ', 3 "") having spray openings 45a' and 45b 'near the floor height, and the spray head from the inlet opening Equipment for extinguishing in the space 100, characterized in that the suction is arranged to be sprayed in the direction of the suction opening. The pipe according to claim 1, wherein the pipe comprises a plurality of spray openings 45a ', 45 ", 45'", 45 "" and smoke gas which are sprayed along the floor 24 in the form of mist from the pipe system. And constitutes part of a pipe system 3a ', 3 ", 3"', 3 "" having a plurality of suction openings 67a ', 67 ", 67"', 67 "" for suction. Is the first extended pipe section (910a ', 910a' ', 910a' ", 910a '"') and the second extended pipe section (811a ', 811a' ', 811a' ", 811a '"') An intermediate pipe section 12a ', 13a'. 13a ', 13a' ", 12a '"', 13a '"' connecting the extended pipe section and the second extended pipe section, and the spray opening 45a '. , 45 ", 45 '", 45 "" are longitudinally disposed in the second extended pipe section 811a', 811a ", 811a '", 811a' "', and the suction opening 67a', 67". , 67 " ', " 67 " " are longitudinally disposed in the first extended pipe sections 910a', 910a ", 910a '", 910a' " ', The second extended pipe section 811a ', 811a' ', 811a' ", 811a '"' is positioned near the floor height 24 of the space and the first extended pipe section 910a ', 910a' ', 910a '", 910a'" ') is arranged at a distance of 1 to 10 m from the floor height 24. The method of claim 2, wherein the first extended pipe sections 910a ', 910a' ', 910a' ", 910a '"' are second extended pipe sections 811a ', 811a ", 811a'", 811a '. Facility parallel to " '). 3. The pipe system 3b 'according to claim 2, comprising a plurality of spray openings 45b' and a plurality of suction openings 67b 'for spraying digestive fluid out of the pipe system along the floor 24. Further, the pipe system further comprises an intermediate pipe section 12b 'connecting the first extended pipe section 910b' and the second extended pipe section 811b 'and the first extended pipe section and the second extended pipe section. 13b ', the spray opening 45b' is longitudinally disposed in the second extended pipe section 811b ', and the inlet opening 67b' is long in the first extended pipe section 910b '. Direction, the second extended pipe section 811b 'is disposed near the floor height 24 of the room and the first extended pipe section 910b' is disposed at a distance of 1 to 10 m from the floor height. Equipment. 5. The plant according to claim 4, wherein the first extended pipe section (910b ') faces parallel to the second extended pipe section (811b'). 5. The pipe system 3a ', 3b' is located near the opposite wall of the room 100, as another pipe system 3b 'is arranged at such a distance from the pipe system 3a'. Equipment characterized in that. The device according to claim 1, further comprising a pipe net (3) in the subfloor (23), the spray heads (1, 2) being arranged in the pipe net to spray extinguishing liquid in the form of a mist on the pipe net, The pipe net has spray openings 4 and 5 for spraying fog out of the pipe net and suction openings 6 and 7 for sucking smoke and smoke gas into the pipe net and flowing digestion fluid from the spray opening toward the suction opening, The pipe net has a first pipe portion 910, a second pipe portion 811 and a middle pipe portion (12, 13) connecting the first pipe portion and the second pipe portion, The first extended pipe part faces in parallel with the second extended pipe part, and the spray opening and the suction opening are the length of the pipe part extended to the extended pipe part. Equipment characterized in that arranged in the. 8. Installation according to claim 7, characterized in that the spray head (1,2) is arranged in the intermediate pipe part (12,13). 9. The pipe net (3) according to claim 7 or 8, wherein the pipe net (3) is rectangular, the intermediate pipe part having a first intermediate pipe part (12) and a second intermediate pipe part (13), and the pipe parts (12, 13). ) Are essentially parallel and located at a distance from each other, the spray head 1 is arranged in the first intermediate pipe part 12, which is generated in the form of finely divided fog with a large penetration capacity of the digestive fluid. And another spray head 2 in such a manner that it is possible to generate simultaneous suction near another spray head 2, wherein another spray head is arranged in the second intermediate pipe part 13. Equipment. 10. The first extended pipe portion 910 has a spray opening 5 and a suction opening 6 so that the spray opening is arranged at the first portion 9 of the first extended pipe portion and suctioned. The opening is arranged in the second part 10 of the first extended pipe part, the second extended pipe part 811 has a spray opening 4 and a suction opening 7 so that the spray opening is second extended. The first part 8 of the pipe part and the suction opening is arranged in the second part 11 of the second extended pipe part, and the spray opening of the first extended pipe part is the suction part of the second extended pipe part Spray toward the opening in a direction parallel to the intermediate pipe sections 12 and 13, spray openings in the second extending pipe section towards the inlet opening of the first extending pipe section in parallel to the intermediate pipe sections. Equipment characterized in that the. 8. The first extended pipe section 910, the second extended pipe section 811a 'and the first extended pipe section 910a' of the pipe system 3a 'are essentially floors 24. Disposed in the same plane across the plane, the first extended pipe section 810 and the second extended pipe section 811b 'and the first extended pipe section 3b' 910b ') is arranged in the same plane across the plane of the floor 24. 12. The pipe system 3a 'according to claim 3 or 11, wherein the pipe system 3a' is rectangular, the middle pipe section having a first intermediate pipe section 13a 'and a second intermediate pipe section 12a'. 12a ', 13a' are essentially parallel and located at a distance from each other, the spray head 1a 'is arranged in the first intermediate pipe section 13a', and the installation is another spray head 2a of that type. ') Allows the extinguishing fluid to be expelled in the form of finely divided mists which have a high penetration capability and are simultaneously inhaled near another spray head 2a', while another spray head has a second intermediate pipe section l2a '. The equipment is characterized in that the arrangement. 8. The spray heads (1a ', 2a', 1b ', 2b') of the pipe systems (3a ', 3b') and the spray heads (1, 2) of the pipe net (3) are hydraulic accumulators (15). And 15 ") to a drive unit (14). 14. A plant as claimed in claim 13, wherein the hydraulic accumulator (15, 15 ') comprises a pressure container (16a, 16b, 16') having a space for the extinguishing fluid and a space for the propellant gas. 15. The plant as claimed in claim 14, wherein the gas source (21, 21 ') is connected to a pressure container (16a, 16b, 16') to supply propellant gas to the vessel. 16. The plant according to claim 15, wherein the extinguishing liquid in the pressure container (16a, 16b, 16 ') is a liquid based on water and the gas container is formed of a non-combustible gas container (21, 21'). 17. The plant according to claim 16, wherein the gas container is a nitrogen container (21, 21 ') filled at a pressure of 30 to 300 bar. 18. The hydraulic accumulator (15 ') for the pipe systems (3a', 3b ') is located under the lateral opening (18') and under the pressure container, and the extinguishing fluid is directed to the ascending tube or the spray head (1a) of the pipe system. ', 2a', 2b ', 2b') having a pressure container 16 'having a riser tube 17 provided with a supply opening 17' for feeding to the bottom, and raising the position below the lateral opening. The tube is characterized in that it has a throttle (20 '). 19. The spray head (1, 2) of the pipe net (3) is arranged so as to be separated from the hydraulic accumulator (15 ') for the pipe system (3a', 3b ') and two pressure containers (16a, 16b). It is operated by a hydraulic accumulator 15 having a), one of which (16a) is arranged to enter the outlet supply pipe (110), which emptyes its liquid contents entirely and leads to the spray heads (1, 2) of the pipe net. And then the other (16b) is emptied so that the propellant gas from the gas container simultaneously enters the outlet supply pipe to obtain a finely divided liquid mist. As a fire extinguishing system in space, in particular on the subfloor, a pipe net 3 is arranged on the subfloor, which is of the type capable of producing a fine mist-like extinguishing medium and is capable of simultaneous intake near the spray head. It is possible and comprises a spray head (1, 2) disposed in the pipe net, the pipe net is a spray opening (4, 5) for injecting mist from the pipe net, the smoke and smoke gas into the pipe net And a suction opening (6, 7) for generating a flow of the digestive medium from the injection opening toward the suction opening. 21. The pipe net of claim 20 wherein the pipe net connects a first extended pipe portion 910, a second extended pipe portion 811, and the first extended pipe portion to the second extended pipe portion. And an intermediate pipe part (12, 13), characterized in that the spray openings (4, 5) and the suction openings (6, 7) are arranged in the longitudinally extending pipe part of the extended pipe part. equipment. 22. An extinguishing system according to claim 21, wherein said first extended pipe portion (910) faces parallel to said second extended pipe portion (811). 23. Fire-extinguishing system according to claim 21 or 22, characterized in that the spray head (1, 2) is arranged in the intermediate pipe part (12, 13). The pipe net according to claim 20, wherein the pipe net is rectangular, whereby the intermediate pipe portion comprises a first intermediate pipe portion 12 and a second intermediate pipe portion 13, wherein these pipe portions 12, 13 are Essentially parallel and spaced apart from each other, whereby the spray head 1 is arranged in the first intermediate pipe part 12, and the plant is provided with a digestive medium in the form of a finely divided liquid It further comprises a spray head (2) of the type that can be produced, which allows simultaneous suction in the vicinity of more spray heads, said more spray heads being arranged in a second intermediate pipe part. equipment. 25. The first extended pipe portion 910 has both a spray opening 5 and a suction opening 6, so that the spray opening is connected to the first section 9 of the first extended pipe portion. And the inlet opening is arranged in the second section 10 of the first extending pipe section, the second extending pipe section 811 has both a spray opening 4 and a inlet opening 7 to spray The opening is arranged in the first section 8 of the second extended pipe part and the suction opening is arranged in the second section 11 of the second extended pipe part, whereby the spray opening of the first extended pipe part is Arranged to spray in a direction parallel to the intermediate pipe portions 12, 13 from the inlet opening of the second extending pipe portion, the spray opening of the second extending pipe portion being intermediate from the inlet opening of the first extending pipe portion. A fire extinguishing system, characterized in that arranged to spray in a direction parallel to the pipe portion. 21. Fire-extinguishing system according to claim 20, characterized in that the spray head (1, 2) of the pipe net (3) is connected to a drive unit (14) comprising a hydraulic accumulator (15). The fire extinguishing system according to claim 26, wherein the hydraulic accumulator (15) comprises a gas container (21) filled at a pressure of 30 to 300 bar.