EP2175939A1

EP2175939A1 - Extinguishing device, extinguishing system, and method for local firefighting

Info

Publication number: EP2175939A1
Application number: EP08758824A
Authority: EP
Inventors: Hasso von Blücher
Original assignee: Bluecher GmbH
Current assignee: Bluecher GmbH
Priority date: 2007-08-06
Filing date: 2008-05-28
Publication date: 2010-04-21
Anticipated expiration: 2028-05-28
Also published as: DE102007036902A1; DE502008002956D1; WO2009018868A1; EP2175939B1; US9186532B2; CA2695483C; CA2695483A1; EP2283902A1; ATE502681T1; US20110259615A1; EP2283902B1

Abstract

The device (1) has a jet part (2) having several of discharging nozzles (3) containing discharging devices (5) and which are trained to discharge at the place of fire having a decentralized arrangement in the building. The discharge nozzle has a fluid interaction area arranged with associated extinguishing containers (6, 7). A gas pressure production facility (8) is provided to discharge of fire-extinguishing (4) on the nozzles, and a fire alarm sensor (10). The facility (8) produces extinguishing gas to smother a fire and is under a pressure of 10 bar. An independent claim is included for a and extinguishing system.

Description

Extinguishing device, extinguishing system and method for local firefighting

The invention relates to an extinguishing device designed for local fire fighting in buildings at the location of a fire source according to the preamble of claim 1 and a corresponding method according to the preamble of claim 23. Furthermore, the present invention relates to an extinguishing system with a plurality of extinguishing devices of the aforementioned type according to claim 19.

As far as buildings are equipped with extinguishing equipment, it is, for example, in the relevant building or parts thereof, in particular laid on or in ceilings sprinkler systems, from the nozzles in the event of fire or fire water is sprayed as extinguishing agent. Sprinkler systems are automatic fire extinguishing systems that are used for preventive fire protection in special buildings such as skyscrapers, commercial buildings, department stores, industrial plants, assembly areas and underground car parks. On the ceiling or in the upper part of the side walls several water outlet nozzles, so-called sprinkler heads, attached, which are connected to a water pipe network. The water outlet nozzles in turn are closed with glass ampoules, which are filled with a colored special liquid. Within a sprinkler system, there is a constant water pressure, which is controlled in the sprinkler control center. During a fire, the special liquid in the glass vials warms and expands, causing the ampoules to burst. As a result, the nozzles are opened and the extinguishing water exits the sprinkler pipe network. The resulting pressure drop is detected by a control device and leads to the opening of other valves and the start of pumps. From this point on, water is pumped into the sprinkler system from tanks provided for this purpose or via a water outlet of high pressure. This leaks at all open water nozzles and extinguishes or minimizes the fire.

A disadvantage of sprinkler systems is. that these systems are often designed as systems interconnected over a large area, so that in the case of a small fire or in the case of a false trip, considerable damage is caused by the sprayed extinguishing agents are the result. Moreover, buildings can be retrofitted with the known, permanently installed sprinkler systems only with considerable effort.

In addition, extinguishing devices are known from the prior art, in which a fire extinguishing column is used for local fire fighting in buildings at the site of a fire. Such room extinguishing columns consist of a transportable housing with distributed over its housing wall arranged extinguishing nozzles for discharging an extinguishing agent stored in the housing, wherein in the housing connected to the extinguishing nozzles tank for receiving the extinguishing agent, a power supply module and a fire alarm sensors connected control module for controlling a deletion function the room extinguishing column are provided. The known room extinguishing columns can be placed decentralized in a building, it being possible to operate the room extinguishing columns with respect to the triggering and extinguishing function completely self-sufficient. Thus, depending on the size of the room, a single space extinguisher placed in the room in question may be sufficient. For large rooms, it is also possible to install several room extinguishing columns. The known room extinguishing columns make it possible to retrofit a building with little constructive effort and low costs, whereby false alarms can only affect a single room extinguishing column, which leads to less damage than in the case of false triggering of a sprinkler system. Due to the possibility of extinguishing a fire only locally in the surrounding area of the source of the fire, damage attributable to the sprayed extinguishing agent can be limited, which is particularly advantageous in the case of locally occurring comparatively small fire foci.

However, the known extinguishing columns have only a comparatively low effectiveness in local firefighting. In particular, embers can be erased only insufficient with the known space extinguishing columns, which can lead to a resurgence of the fire after completion of the deletion process.

The invention is therefore an object of the invention to provide an extinguishing device, a method and a fire extinguishing system each of the aforementioned type at your disposal, the effective fire fighting in buildings, on Location of a source of fire and in the immediate vicinity of the source of the fire, allow, in particular, embers are to be erased as completely as possible at the site of the fire.

In order to achieve the above object, in an extinguishing device which has an extinguishing unit having a nozzle device with a plurality of extinguishing nozzles for discharging preferably liquid extinguishing agent only at the location of the source of fire and for decentralized arrangement in the building, at least one device communicates with the extinguishing nozzles in a fluid-communicating manner Extinguishing agent container, at least one pressure generating device for discharging the extinguishing agent via the extinguishing nozzles and at least one fire sensor, provided that the pressure generating device for generating a discharge pressure of the extinguishing agent of at least 10 bar, preferably up to 1,500 bar, in particular between 20 to 200 bar trained ,

The extinguishing agent is discharged according to the invention with high pressure from the extinguishing nozzles, which requires a corresponding design of the pressure generating device. For this purpose, the pressure-generating device can have at least one (high-pressure) pump. In connection with the invention it has been found that the discharge of the extinguishing agent under high pressure leads to a faster and more complete extinguishment of a fire, in particular embers or fire nests can be extinguished quickly and completely. Moreover, the amount of extinguishing agent required for extinguishing a source of fire can be significantly reduced by the high-pressure discharge of the extinguishing agent, which reduces the occurrence of damage caused by the discharged extinguishing agent.

It can preferably be provided that the extinguishing agent is discharged or sprayed as a spray. It is understood that in this case, the nozzle device must be designed accordingly and the pressure level of the extinguishing agent must be correspondingly high in order to distribute the extinguishing agent finely distributed, in the manner of a mist, under high pressure.

The opening angle of the spray cone generated by an extinguishing nozzle may be less than 15 °, preferably less than 10 °. The smaller the opening Angle of the spray cone is generated, the more the spray cone approaches a beam, which ensures a correspondingly greater range of discharged via the extinguishing nozzles extinguishing agent.

The quenching unit may preferably be designed as a quenching column, wherein the term "column" is not limited to spatial structures with a circular cross-section. Incidentally, spatial structures are also conceivable which have a polygonal cross section. Also, sheet formations, such as plates formous erasing units, are covered by the invention. If the extinguishing units are of a columnar design, they can extend longitudinally from a floor of the building up to a ceiling height of at least 1.5 m, preferably at least 2.5 m. The extinguishing columns can also be used for decorative purposes or for advertising purposes, but it must be ensured that an unimpeded discharge of the extinguishing agent through the extinguishing nozzles is guaranteed at all times.

If the extinguishing unit is intended to be set up on a floor of the building and has an elongate housing, the nozzles can be distributed over the housing wall, preferably evenly distributed. In connection with the invention, it has been found that a particularly good fire-extinguishing effect emanates from a quenching unit set up on a building floor, when nozzles are arranged in the longitudinal direction of the housing wall at a distance of at least 1, 0 to 3.5 m above the floor, wherein preferably, the nozzles should be provided at least in the upper third of the housing wall. In order to further increase the range during the discharge of the extinguishing agent, at least one nozzle or, preferably, a plurality of nozzles may be provided on an upper end face of the housing wall.

In the simplest case, water is used as the extinguishing agent. However, the extinguishing agent may also comprise at least one hydrophilic, swellable component, wherein, preferably, the swellable component is dispersible in water, and, more preferably, the component is a superabsorbent polymer. Hydrophilic swellable materials which can be used as extinguishing agents are known, for example, from DE 35 15 865 A1 and DE 38 14 751 A1 to the Applicant. For example, you can swellable polymers based on Polyacry lat or polymethacrylate and / or based on the modifications are used.

From the state of the art, for example, a concentrate with the trade name Firesorb® is known from Degussa. Firesorb® is a liquid polymer preparation that can absorb many times more water. This forms a heat-shielding gel that adheres even to ceilings and vertical walls. Due to its high toughness (viscosity), the Firesorb® gel only flows very slowly away from burning material and therefore remains extinguishing for longer. The protective film absorbs the heat of combustion at the surface, under which the air-closing function remains. Water added with Firesorb® acts as a liquid fire blanket, stifling the fire by closing the air and providing cooling. Firesorb® is a concentrate of superabsorbent polymer particles that are slightly pre-swollen with water. By incorporation into a special, biodegradable oil, the polymers are prevented from further water absorption. In this form, the additive is very easy to transport and handle. As soon as the preswollen polymers are metered into larger amounts of water, the water binding accelerates considerably. By stirring or pumping this effect can be further enhanced. According to the last-described example, it can be provided in the invention that the extinguishing agent from a mixture of extinguishing water with a concentrate of the type described above is available as extinguishing water additive.

If the extinguishing agent is obtainable by mixing extinguishing water with an extinguishing water additive, two extinguishing agent containers may be provided, a first extinguishing agent container being provided for receiving extinguishing water and a second extinguishing agent container for receiving the extinguishing water additive. If the mixing is to take place before the discharge from the extinguishing nozzles, a mixing device is required to mix the extinguishing water and the extinguishing water additive to the usable extinguishing agent. The extinguishing water and the extinguishing water additive can be supplied separately from the nozzle device and mixed only immediately before the discharge. If it is intended to mix the extinguishing water and the extinguishing water additive before discharge, it is understood that the extinguishing nozzles are designed accordingly, preferably for a superfine. misting of the enforced mixture of extinguishing water and extinguishing water additive. In this context, it is further understood that it may come after the mixing of extinguishing water and extinguishing water additive to a further swelling of a swellable additive contained in the extinguishing water additive, which must be taken into account in the design of the nozzle device accordingly.

In order to ensure a safe discharge of the extinguishing agent, it can also be provided that the extinguishing water and the extinguishing water additive are discharged separately. Thus, two different extinguishing agents are discharged per se, namely extinguishing water and extinguishing water additive. In this case it can be provided to discharge the extinguishing water in the form of a nibble with very small liquid droplets and the extinguishing water additive with larger liquid droplets. This then leads to the extinguishing water evaporates in the surrounding area of the fire largely completely under heat absorption, while the extinguishing water additive lays as a liquid fire blanket on the fire.

The discharge quantity of the extinguishing agent can be between 100 and 5,000 l / h, preferably between 500 and 2,500 l / h. In this connection, the first extinguishing agent container for the extinguishing water may have a filling volume between 10 to 1000 l, preferably between 100 to 750 l, wherein, preferably, the second extinguishing agent container for the extinguishing water additive may include a smaller volume. It is understood that in principle both extinguishing agent container can be made the same size. If the extinguishing water and the extinguishing water additive are discharged separately, the discharge quantity for the extinguishing water and the extinguishing water additive may each be between 100 and 5000 l / h, preferably between 500 and 25001 / h.

In order to extinguish a fire as completely as possible, it will usually be necessary to discharge the extinguishing agent over a total period of 1 to 10 minutes, preferably 2 to 5 minutes. In order to reduce the amount of extinguishing agent discharged overall during a deletion operation, it may be provided that the extinguishing agent be discharged in a plurality of cycles, the total period of the extinguishing agent discharge comprising a plurality of cycles and each clock preferably has a duration of less than 1 minute.

In order to enable a self-sufficient operation of the extinguishing device, the pressure generating device, in particular a pump, and an electric motor as a drive for the pump, can be arranged within the erase unit. The arrangement of the pressure generating means within the erasing unit allows the erasing apparatus to be portable. If the site of the extinguishing device or the corresponding building permit, according to an embodiment of the invention can also be provided that the or the extinguishing agent container is connected to an external pressure supply / are.

In a preferred embodiment, it is provided that the extinguishing agent container is disposed within the quenching unit, wherein, preferably, the extinguishing agent container may be formed by a housing wall of the quenching unit. This makes it possible to supply the extinguishing device with extinguishing agent independently of a building-side stationary extinguishing medium line, which in principle, however, is also possible. The extinguishing agent container can be connected via a housing-side auxiliary connection to an external extinguishing agent supply, which makes it possible to provide a larger amount of extinguishing agent in case of fire.

If it is provided to obtain the extinguishing agent by mixing extinguishing water with an extinguishing water additive, then the mixing device required for this purpose can also be arranged within the extinguishing unit. If an autonomous operation of the extinguishing device is provided, a power supply device is required for the operation of the pressure generating device, which must also be arranged in the erase unit. The energy supply device has, for example, an accumulator as an energy store. It is understood that the extinguishing device according to the invention can also be connected to an external power supply, such a connection of the extinguishing device to the building-side power grid is usually easy and flexible to implement. In a preferred embodiment of the invention, the erasing unit is arranged stationary in the building. In this connection, means for attaching the erase unit to a wall or on a floor of the building may be provided. In principle, however, it is also possible to make the deleting unit transportable, wherein means for suspending or clamping to provided holders on ceilings, walls or also rollers, wheels or the like may be provided, which permit a method of erasing unit.

To activate a deletion function of the extinguishing device, a control device connected to the fire alarm sensor can be provided. About the controller, the operation of the extinguishing device is controlled, the extinguishing function relates to the discharge of extinguishing agent in case of fire. Preferably, the control device is also arranged within the erase unit, wherein the invention also permits, as required, in an extinguishing system with a plurality of extinguishing devices to network the control of the extinguishing devices, wherein the extinguishing devices can be controlled via a central control system. In the case of a plurality of extinguishing devices, each extinguishing device can be operated independently of other extinguishing devices in the extinguishing function. This makes it possible to activate only those extinguishing devices or to use for extinguishing a fire, which are arranged immediately adjacent to the fire. Immediately adjacent means, for example, in a radius around a fire with a radius of 5 to 15 m. Damage in the building due to the discharged extinguishing agent in the event of a false trip or locally occurring fire can be localized.

In order to limit the space utilization of the building by the extinguishing devices in the littlest possible extent, in an extinguishing system adjacent extinguishing devices may have a mutual distance of at least 3 m, preferably at least 5 m. However, the distance of the extinguishing devices should only be chosen so large that in the area between two adjacent extinguishing devices still sufficient extinguishing effect is ensured in case of fire. A plurality of adjacent extinguishing devices in an extinguishing system may also be operable simultaneously, wherein the activation of the extinguishing function of a first extinguishing device disposed in the vicinity of a fire automatically automatically activates the extinguishing functions only of those extinguishing system extinguishing devices disposed immediately adjacent to the first extinguishing device are. On the other hand, the erasing devices which are not arranged immediately adjacent to the first erasing device are not activated or not put into an erasing function. This presupposes networking of the control of the extinguishing devices, whereby, for example, all extinguishing devices within a radius of approximately 5 to 15 m around a fire are automatically activated as soon as the extinguishing device closest to the fire has been activated.

A common control device for all extinguishing devices in an extinguishing system makes it possible to control or activate the extinguishing devices starting from a central point in the building, such as a control station or the like, in order to enable targeted firefighting.

The invention further relates to an extinguishing device and a method for local firefighting outside of buildings at the location of a fire.

When fighting fires in open terrain, for example in the field of fire fighting, in addition to fire fighting aircraft and complete fire extinguishers often smaller mobile fire fighting units are used, especially when it comes to the fight against Glutnestern or fire nests. These mobile extinguishing units consist of a reservoir, which can be carried on the back, and a spray device for spraying extinguishing water stored in the reservoir on fire or Glutnester. However, this is only slightly effective because on the one hand, the amount of extinguishing water is limited and on the other hand, only small areas can be wetted with the fire water in this way.

Object of the present invention is to provide an erasing device and an erasing method respectively of the aforementioned type, the Enable local firefighting outside of buildings at the location of a fire with high efficiency and are easy to handle.

To achieve the abovementioned object, the extinguishing device according to the invention has at least one moveable extinguishing unit connected to the extinguishing agent container, at least one manually operated high-pressure spraying device with at least one extinguishing nozzle and at least one pressure generating device for discharging extinguishing agent via the high-pressure spraying unit direction to the source of the fire, wherein the pressure generating device for generating a discharge pressure of the extinguishing agent of at least 10 bar, preferably up to 1500 bar, in particular between 20 to 200 bar, is formed. Accordingly, it is provided in the inventive method that the extinguishing agent is discharged at high pressure.

15

The invention is based on this point, first of all the basic idea, the quenching unit with the extinguishing agent container movable form, so that it can be driven in the immediate vicinity of a fire. This is compared to the previously known portable Löscheinheiten a larger 0 fluid reservoir for extinguishing agent at the location of the source of fire available. The method of erasing unit can be done in the simplest case with muscle power. In principle, however, it is also possible to provide a motor drive for off-road operation. The removal of the extinguishing agent from the extinguishing agent tank via the high-pressure spray device, which, preferably, 5, carried and operated by a firefighter. The high-pressure spraying device is connected in a fluid-communicating manner with the extinguishing agent container, wherein the desired high-pressure is generated by means of the pressure-generating device. For this purpose, the pressure generating device may comprise at least one (high pressure) pump. In principle, a plurality of high-pressure spraying devices can also be connected to a quenching unit. It is equally possible that the pressure generating device is integrated into the Hochdrucksprüheinrichtung, so that the erase unit is provided only as an extinguishant memory. 5 In connection with the invention it has surprisingly been found that the discharge of the extinguishing agent under high pressure makes it possible to To extinguish embers or high-efficiency fires. Preferably, the extinguishing agent is discharged in the form of a finely divided mist or spray, which also contributes to an improved extinguishing effect. The combination of high-pressure technology and high-jet nozzle enables a particularly fine atomization of the extinguishing agent. The small droplets evaporate completely, thereby removing the maximum amount of energy from the fire. In practice, this results in an optimal extinguishing effect of the water used. By changing the extinguishing nozzles or simply twisting, a jet adjustment from the spray jet to the full jet can be achieved. Preferably, the opening angle of the spray cone generated by an extinguishing nozzle should be less than 15 °, preferably less than 10 °. With even smaller opening angle, it is also possible in principle to discharge the extinguishing agent as a full jet.

In the simplest case, the extinguishing agent is water. However, the extinguishing agent may also have at least one hydrophilic, swellable component, wherein, preferably, the component should be dispersible in water. In particular, swellable polymers, for example polyacrylate-based or polymethacrylate-based and / or based on the modifications, can be added to the extinguishing water as extinguishing water additives. In this context, at least two extinguishing agent containers may be provided, wherein a first extinguishing agent container for receiving extinguishing water and a second extinguishing agent container may be provided for receiving the extinguishing water additive. A concentrate of superabsorbent polymer particles may be contained in the second extinguishing agent container as the extinguishing water additive, wherein the polymer particles are slightly pre-swollen with water and prevented from further absorption of water by introduction into an organic phase.

In order to mix the extinguishing water and the extinguishing water additive, a mixing device is provided, wherein the extinguishing water and the extinguishing water additive are preferably supplied separately to the extinguishing nozzle and mixed together only immediately before the discharge of the extinguishing agent. When mixed, the water binding of superabsorbent polymer particles accelerates considerably. Here it must be ensured that the swelling does not hinder the discharge. This sets a corresponding formation of the extinguishing nozzle ahead. In principle, however, it can also be provided to discharge the extinguishing water and the extinguishing water additive via separate extinguishing nozzles simultaneously or via the same extinguishing nozzles in succession. Here it can be further provided to discharge the extinguishing water finely distributed in the form of a mist, while the extinguishing water additive less finely distributed is discharged with larger liquid droplets. If the extinguishing water additive is superabsorbent polymer particles in the gel state, they lay over the source of fire like a carpet, so that it is suffocated. The finely distributed extinguishing water, on the other hand, evaporates completely, thus removing a large amount of heat from the fire. In principle, it is also possible to discharge the extinguishing water additive by high-pressure discharge in the form of a finely distributed, large-area mist which covers a larger area.

The discharge amount of the extinguishing agent should be between 100 to 2,500 l / h, preferably between 500 to 1,600 l / h. In this context, the first extinguishing agent container for the extinguishing water can have a filling volume of at least 50 l, in particular between 100 and 500 l. The second extinguishing agent container for the extinguishing water additive preferably has a smaller volume. Depending on the nature of the drive of the quenching unit, the filling volume of the first and / or the second extinguishing agent container may also be correspondingly larger. It is important that the filling volume of the or the extinguishing agent container allows a method of Löhneheit in the field.

A power supply device arranged in the erase unit can be provided for the power supply independently of a deletion train or a stationary power supply line, it being possible for the energy supply device to have at least one rechargeable battery as an energy store. At the location of a rechargeable battery, it is also possible to use a gasoline-powered generator.

To ensure that embers or incinerators are completely extinguished, the extinguishing agent should be discharged for a period of 1 to 10 minutes, preferably 2 to 5 minutes. In order to ensure the best possible extinguishing effect of the amount of extinguishing agent available, it may be provided to discharge the extinguishing agent in a timed manner, wherein in short sprays each a predetermined amount of the extinguishing agent is discharged. For this purpose, a corresponding control device can be provided. Alternatively, the discharge of the extinguishing agent can also be controlled manually.

Moreover, the invention makes it possible, if necessary, to combine the features mentioned in the claims and / or the features described with reference to the drawing, even if this is not described in detail. Also, a combination of previously described features of local firefighting in extinguishing devices, with features of such extinguishing devices are designed for local firefighting outside of buildings, is possible. The above value specifications and the specified intervals in each case capture all values, so not only the lower limits or at intervals the interval limits, without this needs an explicit mention.

In particular, there are a variety of ways to design and develop the extinguishing devices according to the invention and the inventive method, reference being made on the one hand to the dependent claims and on the other hand to the following detailed description of preferred embodiments of the invention with reference to the drawings. In the drawing show

Fig. 1 is a schematic cross-sectional view of an inventive

Extinguishing device designed for local firefighting in buildings at the site of a fire and

Fig. 2 is a schematic cross-sectional view of an inventive

Extinguishing device designed for local firefighting outside of buildings at the location of a fire.

In Fig. 1, an extinguishing device 1 is shown schematically designed for local fire fighting in buildings at the site or in the immediate vicinity of a fire. The extinguishing device 1 has a nozzle device 2 with a plurality of extinguishing nozzles 3, designed for discharging extinguishing agent 4 only at the location or in the immediate vicinity of the source of the fire and for decentralized arrangement in a building, not shown on. The discharge of the extinguishing agent 4 is shown schematically in Fig. 1 only for a single extinguishing nozzle 3. It is understood that in case of fire from a plurality of extinguishing nozzles 3, preferably from all extinguishing nozzles 3, the extinguishing agent 4 is discharged.

The nozzle device 2 is an integral part of a quenching unit designed as extinguishing column 5, which in the illustrated embodiment 2 extinguishing agent container 6, 7 and a pressure generating device 8 and a mixing device 9 has. In addition, a plurality of fire sensors 10 are provided for the detection of a fire, which are set to a particular combined optics, smoke, CO, temperature indication. The data recorded by the fire alarm sensors 10 are transmitted to a control device not shown in detail, wherein the control device in response to the received signals causes the activation of a deletion function. After activation of the deletion function is a release of extinguishing agent 4 via the extinguishing nozzles 3. In the control device may be integrated in addition to a telecommunication function for transmitting a message to a given recipient. The fire alarm sensors 10 are arranged as well as the extinguishing nozzles 3 distributed over a housing wall 1 1 of the extinguishing unit 5.

The extinguishing agent 4 is obtainable from a mixture of extinguishing water 12 and at least one extinguishing water additive 13, wherein a gelatinous concentrate of at least one water-preswollen polymer in an organic phase is used as extinguishing water additive 13. The extinguishing water 12 is stored in the first extinguishing agent container 6 and the extinguishing water additive 13 in the second extinguishing agent container 7. In case of fire, after activation of the extinguishing function of the pressure generating device 8 extinguishing water 12 and extinguishing water additive 13 is sucked out in a predetermined mixing ratio and passed to the mixing device 9. Preferably, a metered addition of 1 to 10%, in particular of 2 to 3%, of the extinguishing water additive 13 to the extinguishing water 12 is provided. The pressure generating device 8 generates the discharge pressure of the extinguishing agent 4 required for discharging the extinguishing agent 4 via the extinguishing nozzles 3 of at least 10 bar, preferably up to 1,500 bar, in particular between 20 and 200 bar. In a further preferred embodiment, a discharge pressure of approximately 40 bar is achieved. testifies. The pressure generating device 8, which may be a pump in the simplest case, is connected via pressure lines 14 with the extinguishing nozzles 3 on the one hand and via suction lines 15a-c to the mixing device 9 and the two extinguishing agent containers 6, 7.

In case of fire, it comes to the discharge of the extinguishing agent 4 under pressure, the extinguishing agent 4 is discharged as a spray. The high-pressure discharge of the extinguishing agent 4 allows a particularly fine atomization of the extinguishing agent. In practice, this results in an optimal extinguishing effect of the extinguishing agent used 4. In addition, the room temperature level in the surrounding area of the fire is very quickly lowered and soot and suspended particles from the ambient air washed out. Thus, the visibility in a fire-exposed room is positively influenced. The low extinguishing agent consumption with maximum effectiveness ensures cost-effective protection of the building inventory in a very short period of time within which a fire can be completely extinguished. Moreover, it is ensured by the high-pressure discharge of the extinguishing agent 4 that embers or fire nests can be completely extinguished, so that a resurgence of the fire does not have to be feared.

The extinguishing water additive 13 contains superabsorbent polymer particles which are slightly pre-swollen with water. By incorporation into a special, biodegradable oil, the polymers are prevented from further water absorption. In this form, the extinguishing water additive 13 is very easy to transport and handle. Once the extinguishing water additive 13 is mixed in the mixing device 9 with the extinguishing water 12, it comes to re-water binding, which can be further enhanced by stirring or pumping this effect. In the extinguishing device 1 shown in FIG. 1, it is therefore necessary that after mixing extinguishing water 12 and extinguishing water additive 13, the extinguishing agent mixture thus obtained is discharged as quickly as possible via the extinguishing nozzles 3, before the degree of swelling of the polymer has increased such that a spraying of the Extinguishing agent 4 is no longer possible or disabled. The polymer particles contained in the extinguishing water additive 13 settle over the source of the fire like an extinguishing carpet after spraying and suffocate it. It is not shown that it can also be provided to mix the extinguishing water 12 and the extinguishing water additive 13 only immediately before exiting the extinguishing nozzles 3 or to spray them separately from one another via the extinguishing nozzles 3. If the extinguishing water 12 and the extinguishing water additive 13 sprayed separately, so two pressure generating means 8 may be provided to build the necessary outlet pressure of the extinguishing water 12 on the one hand and the extinguishing water additive 13 on the other. Here, extinguishing nozzles 3 for the extinguishing water 12 on the one hand and further extinguishing nozzles 3 for the extinguishing water additive 13 on the other hand can be provided and designed accordingly. If the extinguishing water 12 and the extinguishing water additive 13 sprayed separately from each other, it may happen that the pre-swollen polymer contained in the extinguishing water 13 contained in the extinguishing water additive 13 after receiving extinguishing water 12 after spraying even further, which is beneficial to the extinguishing effect effect.

In addition, it should be noted that in case of fire preferably via the fire source facing extinguishing nozzles 3 a discharge of the extinguishing agent 4 is provided. Here, the fire detection sensors 10 can be designed such that not only the occurrence of a source of fire, but also its orientation to the deletion unit 5 is passed on as control information to the control device. Depending on which side of the fire is localized, then the discharge of the extinguishing agent 4 takes place only on one or the other side or on the outside of the fire extinguishing unit 5. In order to ensure a high extinguishing effect, the extinguishing nozzles are the third preferably uniformly distributed over the housing wall 1 1 of the quenching unit 5, wherein the extinguishing nozzles 3 extend in the illustrated embodiment over the entire upper half of the housing wall 1 1. Moreover, a plurality of extinguishing nozzles 3 are provided on an upper end face 16 of the housing wall 11. As a result, the extinguishing agent discharge over the entire outer surface including the upper end face 16 of the Löscheinheit 5 done, where it is in principle also possible that extinguishing nozzles 3 are also provided in the region of the lower half of the housing 1 1. It is not shown, moreover, that an energy supply device is provided in the deleting unit 5, wherein the energy supply device has at least one rechargeable battery as an energy store for operating the pressure generating device 8. For the rest, the extinguishing unit embodied as extinguishing column 5 can be arranged, if required, in a transportable or even stationary manner in the building.

In Fig. 2, an extinguishing device 17 is shown, which is designed for local firefighting outside of buildings at the site or in the immediate vicinity of a fire. The extinguishing device 17 has a schematically represented moveable extinguishing unit 18 and at least one high-pressure spraying unit 19 shown schematically. Otherwise, a first extinguishing agent container 20 for extinguishing water 21 and a second extinguishing agent container 22 for an extinguishing water additive 23 are arranged within the extinguishing unit 18. The extinguishing water additive 23 corresponds to the extinguishing water additive 13 which is used in the extinguishing device 1 shown in FIG.

Otherwise, the erasing unit 18 has a pressure generating device 24 and a mixing device 25. By means of the pressure generating device 24, which is a high-pressure pump, the necessary discharge pressure for an extinguishing agent 26 is established, the extinguishing agent 26 is obtainable by mixing extinguishing water 21 with the extinguishing water additive 23 in a predetermined mixing ratio in the mixing device 25. Preferably, a metered addition of 1 to 10%, in particular of 2% to 3%, of the fire-extinguishing water 21 is provided. In this case, the extinguishing water 21 and the extinguishing water additive 23 is sucked to the mixing device 25 by the pressure generating device 24 via suction lines 27a and 27b. The extinguishing agent 26 is then supplied via the further suction line 27c and a pressure line 28 to an extinguishing nozzle 29 of the high-pressure spraying device 19. The discharge of the extinguishing agent 26 takes place in the form of a spray under high pressure, which leads to the advantages described in connection with the extinguishing device 1 shown in Fig. 1 during the deletion process.

The Hochdrucksprüheinrichtung 19 is manually carried by a firefighter and operable so that the spray of the extinguishing agent 26 can be targeted to the location of a source of fire aligned. Not shown In addition, the erase unit 18 has an energy supply device with at least one accumulator as an energy store for the pressure generating device 24. Thus, a self-sufficient operation of the extinguishing device 17 is independent of a stationary power supply possible. At the location of a rechargeable battery, the power supply device may also have a generator.

The extinguishing device 17 shown in Fig. 2 makes it possible to transport a larger quantity of extinguishing water to the location of a fire and using the high-pressure spraying 19 discharge the extinguishing water 21 together with the extinguishing water additive 23, so that in particular embers and fire can be effectively combated.

Claims

claims:

1. extinguishing device (1) designed for local firefighting in buildings at the location of a fire, comprising

a quenching unit (5) having a nozzle device (2) with a plurality of quenching nozzles (3), designed for discharging extinguishing agent (4) at the location of the source of the fire and for decentralized arrangement in the building,

- At least one with the extinguishing nozzles (3) fluidkommunizierend connected extinguishing agent container (6, 7),

- At least one pressure generating means (8) for discharging the extinguishing agent (4) via the extinguishing nozzles (3) and

- At least one fire detection sensor (10), d a d u r c h e c e n e c e s in that the pressure generating device (8) for generating a discharge pressure of the extinguishing agent (4) of at least 10 bar is formed.

2. Extinguishing device according to claim 1, characterized in that the extinguishing agent (4) can be discharged as a spray.

3. Extinguishing device according to claim 1 or 2, characterized in that the opening angle of the spray nozzle (3) generated by the spray cone is less than 15 °, preferably less than 10 °.

4. Extinguishing device according to one of the preceding claims, characterized in that the erase unit (5) is designed as a spatial structure, in particular as extinguishing column.

5. Extinguishing device according to one of the preceding claims, characterized in that the extinguishing nozzles (3) over an elongated housing wall (I i) of the Löhneheit (5) are arranged distributed, said extinguishing nozzles (3) when setting up the Löhneheit (5) on a floor of the building in the longitudinal direction of the housing wall (1 1) with a Distance from at least 1.0 to 3.5 m are arranged to the ground and wherein, preferably, the extinguishing nozzles (3) at least in the upper third of the housing wall (1 1) are provided.

6. Extinguishing device according to one of the preceding claims, characterized in that at least one extinguishing nozzle (3) on an upper end face (16) of the housing wall (11) is provided.

7. Extinguishing device according to one of the preceding claims, characterized in that the extinguishing agent (4) comprises at least one hydrophilic swellable component, wherein, preferably, the component is water-dispersible, and wherein, more preferably, the component is a superabsorbent polymer.

8. Extinguishing device according to one of the preceding claims, characterized in that the extinguishing agent (4) from a mixture of extinguishing water (12) with at least one extinguishing water additive (13) is obtainable, wherein, preferably, as extinguishing water additive (13) a concentrate of at least a preswollen polymer in an organic phase is provided.

9. Extinguishing device according to claim 8, characterized in that at least two extinguishing agent containers (6, 7) are provided, wherein a first extinguishing agent container (6) for receiving extinguishing water (12) and a second extinguishing agent container (7) for receiving the extinguishing water additive (13) are provided.

10. Extinguishing device according to one of the preceding claims 8 or 9, characterized in that at least one mixing device (9) for mixing extinguishing water (12) and extinguishing water additive (13) is provided.

1 extinguishing device according to any one of the preceding claims, characterized in that the discharge of the extinguishing agent (4) between 100 to 5000 l / h, preferably between 500 to 2500 l / h.

12. Extinguishing device according to one of the preceding claims, characterized in that the first extinguishing agent container (6) has a filling volume between 10 to 1000 1, preferably between 100 to 750 1, and that, more preferably, the second extinguishing agent container (7) has a smaller volume having.

13. Extinguishing device according to one of the preceding claims, characterized in that the pressure-generating device (8) is arranged within the deleting unit (5).

14. Extinguishing device according to one of the preceding claims, characterized in that the extinguishing agent container (6, 7) within the Löscheinheit (5) is arranged.

15. Extinguishing device according to one of the preceding claims, characterized in that the mixing device (9) is arranged within the deleting unit (5).

16. Extinguishing device according to one of the preceding claims, characterized in that in the Löscheheit (5) arranged power supply device is provided and that, preferably, the power supply device comprises at least one accumulator as energy storage.

17. Extinguishing device according to one of the preceding claims, characterized in that the deleting unit (5) is arranged stationarily in the building.

18. Extinguishing device according to one of the preceding claims, characterized in that a to the fire alarm sensor (10) connected

Control device for activating a deletion function of the extinguishing device is provided.

19. An extinguishing system with a plurality of extinguishing devices (1) of the aforementioned type, wherein at least one, preferably each extinguishing device tion (1), independently of other extinguishing devices (1) in the erase function is operable.

20. Extinguishing system according to claim 19, characterized in that adjacent extinguishing devices (1) have a mutual distance of at least 3 m, preferably at least 5 m.

21. Extinguishing system with a plurality of extinguishing devices (1) of the aforementioned type, in particular extinguishing system according to claim 19 or 20, character- ized in that a plurality of adjacent extinguishing devices (1) is operable simultaneously, wherein preferably, the activation of the extinguishing function of a first Erase device (1) for automatically activating the erase functions only of such further erase devices (1) feels, which are arranged immediately adjacent to the first erasing device (1).

22. Extinguishing system according to one of the preceding claims 19 to 21, characterized in that a common control device for a plurality of extinguishing devices (1) is provided.

23. A method for local firefighting in buildings by means of at least one extinguishing device (1) according to one of the preceding claims 1 to 18, wherein the extinguishing device (1) - an erase unit (5) with a plurality of extinguishing nozzles (3) having nozzle means (2 ), wherein the deleting unit (5) for discharging extinguishing agent (4) at the location of the fire and decentralized arrangement in the building is formed, - at least one with the extinguishing nozzles (3) fluidkommunizierend connected extinguishing agent container (6, 7),

at least one fire detection sensor (10), characterized that the extinguishing agent (4) is discharged at an overpressure of at least 10 bar, wherein, preferably, the extinguishing agent (4) is sprayed.

24. The method according to claim 23, characterized in that the extinguishing agent (4) from a mixture of extinguishing water (12) with at least one extinguishing water additive (13) is obtained, wherein, preferably, the extinguishing water additive (13) has at least one hydrophilic swellable component.

25. The method according to any one of the preceding claims 23 or 24, characterized in that the extinguishing water (12) and the extinguishing agent additive (13) separately from the nozzle means (2) are fed and that, more preferably, the extinguishing water (12) and the extinguishing water additive (13) are mixed immediately before discharge.

26. The method according to any one of the preceding claims 23 to 25, characterized in that the extinguishing water (12) and the extinguishing water additive (13) are discharged separately.

27. The method according to any one of the preceding claims 23 to 26, characterized in that the extinguishing agent (4) over a period of 1 to 10 minutes, preferably 2 to 5 minutes, is discharged, wherein, preferably, the extinguishing agent (4) clocked discharged becomes.

28. Extinguishing device (17) designed for local firefighting outside of buildings at the location of a fire, comprising

a movable erase unit (18) having at least one extinguishing agent container (20, 22),

- At least one with the extinguishing agent container (20, 22) fluidkommu- nizierend connected, manually operable Hochdrucksprüheinrichtung (19) with at least one extinguishing nozzle (28) and

at least one pressure generating device (24) for discharging extinguishing agent (26) via the high-pressure spraying device (19), - Wherein the pressure generating means for generating a discharge pressure of the extinguishing agent (26) of at least 10 bar is formed.

29. Extinguishing device according to claim 28, characterized in that the extinguishing agent (26) can be discharged as a spray.

30. Extinguishing device according to one of the preceding claims 28 or 29, characterized in that the opening angle of the extinguishing nozzle (28) generated by the spray cone is less than 15 °, preferably less than 10 °.

31. Extinguishing device according to one of the preceding claims 28 to 30, characterized in that the extinguishing agent (26) has at least one hydrophilic swellable component, wherein, preferably, the

Component is dispersible in water and, more preferably, the component is a superabsorbent polymer.

32. Extinguishing device according to one of the preceding claims 28 to 31, characterized in that the extinguishing agent (26) from a mixture of extinguishing water (21) with at least one extinguishing water additive (23) is available, wherein, preferably, as extinguishing water additive (23) a concentrate is provided from at least one pre-swollen polymer in an organic phase.

33. Extinguishing device according to claim 32, characterized in that at least two extinguishing agent containers (20, 22) are provided, wherein a first extinguishing agent container (20) for receiving extinguishing water (21) and a second extinguishing agent container (22) for receiving the extinguishing water additive ( 23) are provided.

34. Extinguishing device according to one of the preceding claims 32 or 33, characterized in that at least one mixing device for mixing extinguishing water (21) and extinguishing water additive (23) is hen provided.

35. Extinguishing apparatus according to one of the preceding claims 28 to 34, characterized in that the discharge of the extinguishing agent (26) between 100 to 2500 l / h, preferably between 500 to 1600 l / h.

36. Extinguishing device according to one of the preceding claims 28 to 35, characterized in that the first extinguishing agent container (20) has a filling volume of at least 50 1, in particular between 100 to 500 1, and that, preferably, the second extinguishing agent container (22) has a smaller Has volume.

37. Extinguishing device according to one of the preceding claims 28 to 36, characterized in that in the erase unit (18) arranged energy supply device is provided and that, preferably, the energy supply device as at least one accumulator

Energy storage has.

38. A method for local firefighting outside buildings at the location of a fire by means of at least one extinguishing device (17) according to any one of the preceding claims 28 to 37, wherein the extinguishing device (17)

- At least one with the extinguishing agent container (20, 22) fluidkommu- nizierend connected, manually operable Hochdrucksprüheinrichtung (19) with at least one extinguishing nozzle (28) and - at least one pressure generating means (24) for discharging the

Extinguishing agent (26) via the Hochdrucksprüheinrichtung (19),

- Wherein the extinguishing agent (26) is discharged with an overpressure of at least 10 bar.

39. The method according to claim 38, characterized in that the extinguishing agent (26) is obtainable from a mixture of extinguishing water (21) with at least one extinguishing water additive (23), wherein, preferably, the Extinguishing water additive (13) has at least one hydrophilic swellable component.

40. The method according to claim 39, characterized in that the extinguishing water (21) and the extinguishing water additive (23) separated from each other

Extinguishing nozzle (28) are supplied and that, more preferably, the

Extinguishing water (21) and the extinguishing water additive (23) immediately before

Discharge be mixed.

41. The method according to any one of the preceding claims 39 to 40, characterized in that the extinguishing water (21) and the extinguishing water additive (23) are discharged separately.

42. The method according to any one of the preceding claims 38 to 41, characterized in that the extinguishing agent (26) over a period of 1 to

10 min, preferably 2 to 5 min, is discharged, wherein, preferably, the extinguishing agent (26) is played clocked.