DK2750770T3

DK2750770T3 - Firefighting in tunnels

Info

Publication number: DK2750770T3
Application number: DK12740135.4T
Authority: DK
Inventors: Max Lakkonen; Dirk K Sprakel
Original assignee: Fogtec Brandschutz Gmbh & Co
Priority date: 2011-08-31
Filing date: 2012-07-24
Publication date: 2015-12-21
Also published as: WO2013029883A2; EP2750770B1; CN103796719A; WO2013029883A3; DE102011111525A1; EP2750770A2; CN103796719B

Description

The subject-matter relates to a fire-fighting device and a method for fighting fires in tunnels, wherein an extinguishing fluid is forwarded via a main extinguishing fluid line to sectional lines and is output by means of extinguishing nozzles .

Fire-fighting in tunnels is hugely important, since serious danger to life exists for persons within the tunnel immediately after a fire. Particularly due to heavy goods vehicles, which occasionally also transport highly flammable materials, and the accident risk inherent in road traffic, the fire risk in tunnels is particularly high.

The fire-fighting devices used for fire-fighting in tunnels must be dimensioned in such a way that, in the event of a fire, sufficient extinguishing fluid is supplied to the seat of the fire in order to at least suppress the fire. The extinguishing fluid is distributed among sectional lines via main extinguishing fluid lines. The sectional lines are normally connected via valves to the main extinguishing fluid line and the valves can be opened or closed in an event-controlled manner. It is thus possible to open the valves which are allocated to the sectional lines in which a fire has been localised. The main fluid line must be dimensioned in such a way that it presents a sufficiently low flow resistance in relation to the extinguishing fluid, so that the nozzles connected to the sectional lines are supplied with sufficient fluid. Depending on the number of sectional lines which are connected to a main extinguishing fluid line in the event of a fire, the through-flow quantity of extinguishing fluid is to be determined by the main extinguishing fluid line and the main extinguishing fluid line is to be dimensioned accordingly. For this reason, the main extinguishing fluid line is to be dimensioned as constantly greater with a growing number of simultaneously activated sectional lines. This results in increased costs, particularly for the main extinguishing fluid line. Since the latter is normally connected to the fluid supply, particularly to fluid pumps, over lengthy distances, the dimensioning of the main extinguishing fluid line is a decisive cost criterion for a fire-fighting device.

For this reason, the subject-matter was based on the object of providing a fire-fighting device which enables efficient firefighting with simultaneously low costs for a main extinguishing fluid line.

This object is achieved according to the subject-matter by a fire-fighting device according to claim 1 and a method according to claim 10.

It has been recognised that a tunnel can be subdivided into longitudinal sections. Sectional lines can be provided in each longitudinal section which protect this longitudinal section. A longitudinal section can additionally be subdivided into transverse sections. Transverse sections can subdivide the longitudinal section of the tunnel in its width into individual sections. This means that a plurality of sectional lines, which are allocated in each case to a transverse section, are provided for each longitudinal section. A transverse section is allocated to a section subdividing the width of the tunnel. The total width of the tunnel is essentially covered by the total number of the transverse sections of a longitudinal section.

It has been recognised that a fire is allocated to a transverse section in which a fire is localised. The transverse section in which a fire essentially takes place can be localised by means of a fire localisation device. Due to a sufficiently precise localisation of the fire within the transverse sections subdividing the longitudinal section, it is possible to connect the main extinguishing fluid line to a limited selection of the sectional lines by means of a control device .

It has been recognised that, when a fire has been localised, it is not always necessary to connect all sectional lines of a longitudinal section to the main extinguishing fluid line. In fact, it has been recognised that, in the event of a sufficiently precise localisation of a fire, only those sectional lines which are adjacent to the fire need to be connected to the main extinguishing fluid line. The result of this is that the number of sectional lines and fluid nozzles to be supplied is reduced compared with conventional devices, since, according to the invention, not all sectional lines are connected to the main extinguishing fluid line, but only selected sectional lines. The dimensioning of the main extinguishing fluid line can thus be smaller than in the case of conventional fire-fighting devices. The dimensioning of the main extinguishing fluid line must only be of such a type that a limited selection of the sectional lines is supplied with sufficient extinguishing fluid. This results in substantial cost savings in the fire-fighting devices with a simultaneously equally good or even better fire-fighting result.

As already mentioned, a fire is fought via extinguishing fluid output through extinguishing fluid nozzles. The extinguishing fluid is preferably water or water mixed with surfactants. In order to output the extinguishing fluid, extinguishing fluid nozzles are arranged in the sectional lines. Said nozzles are preferably distributed along the longitudinal direction of a sectional line via a longitudinal section. At least three fluid nozzles are preferably provided per sectional line. It is also possible for four fluid nozzles to be provided per sectional line. In particular, the fluid nozzles can be arranged at intervals of three to six metres from one another along the longitudinal direction in the sectional lines.

Supply lines to the sectional lines, emerging from the main extinguishing fluid line, are present. The sectional lines essentially run parallel to the longitudinal direction of the tunnel. Sectional lines within a longitudinal section are preferably arranged parallel to one another, so that a plurality of sectional lines running parallel to one another subdivide a longitudinal section into transverse sections.

According to one embodiment, it is proposed that the transverse sections are allocated to a traffic lane in the tunnel. In the case of a three-lane tunnel, three transverse sections can thus be provided, wherein a transverse section is allocated to each traffic lane. In the case of railway tunnels, a plurality of traffic lanes can similarly be formed by a plurality of railway lines which are subdivided accordingly by transverse sections. However, the tunnel is preferably a road tunnel. A sectional line is thus allocated to a traffic lane within the tunnel. A sectional line is preferably arranged centrally in relation to the transverse section, in particular centrally in relation to the traffic lane. As a result, the sectional lines are evenly distributed over the width of the tunnel and thereby enable an optimum coverage of the tunnel area.

In tunnels, a parking bay, an emergency stopping bay or an emergency exit is frequently provided in sections. Vehicles that catch fire often preferably stop in emergency stopping bays or parking bays of this type. Precisely such areas within a tunnel are thus particularly at risk from fire and require particular attention in terms of fire protection. A transverse section is preferably allocated to such a parking bay, an emergency stopping bay or an emergency exit in the tunnel. A fire can thus be reliably fought by means of the sectional lines allocated to this transverse section. On the other hand, however, as a result of the additional transverse section, at least one further sectional line within the longitudinal section must be supplied with extinguishing fluid. In the case of a normally three-lane tunnel, a fourth lane must be protected due to the parking bay. This results in a further transverse section and thus in a further sectional line. The main extinguishing fluid line can preferably be designed to supply a total of three sectional lines within a longitudinal section with extinguishing fluid. Furthermore, the main extinguishing fluid line can be designed in such a way that two longitudinal sections are supplied simultaneously with extinguishing fluid. As a result, the main extinguishing fluid line is designed for a maximum of three or a maximum of six sectional lines. If the parking bay is also additionally protected, at least one further sectional line is added, which could result in an underdimensioning of the main extinguishing fluid line. However, this is avoided according to the invention in that, due to the localisation of the fire, it is not necessary to connect all sectional lines within a longitudinal section to the main extinguishing fluid line, but only a limited selection of the available sectional lines. In the case of a fire within a parking bay, said fire would be localised there and at least the sectional line which is allocated to the transverse section of the parking bay would be connected to the main extinguishing fluid line.

In each longitudinal section, three or four sectional lines are preferably provided which subdivide the longitudinal section into three or four transverse sections. The subdivision of the longitudinal section into transverse sections may be dependent on the number of traffic lanes within the tunnel or on the width of the tunnel. A transverse section can preferably have a width of between two and four metres. Three or four transverse sections can then be provided, depending on the total width of the tunnel.

According to one advantageous example embodiment, it is proposed that the limited selection of the sectional lines relates to three or fewer sectional lines. In the case of a four-lane tunnel, this could mean that only three sectional lines are connected to a main extinguishing fluid line per longitudinal section in the event of a fire.

The sectional lines which are in the vicinity of the localised fire should preferably be supplied with extinguishing fluid. For this reason, it is proposed that the limited selection relates to the sectional line in the respective transverse section of which the fire is localised. In addition to this sectional line, at least one further sectional line can be connected to the main extinguishing fluid line, the respective transverse section of which is immediately adjacent to the transverse section in which the fire is localised. If a fire is detected, for example in a central traffic lane, the central transverse section and the transverse sections lying to the left and right thereof or the sectional lines allocated to these transverse sections can be connected to the main extinguishing fluid line. If a fire is localised in a parking bay, the sectional line which is allocated to the parking bay can preferably be connected to the main extinguishing fluid line and the sectional lines which are allocated to the transverse sections which are adjacent to the parking bay, for example the right lane and the central lane. The sectional line of the immediately adjacent transverse section can thus be connected to the main extinguishing fluid line and the sectional line of the transverse section adjacent to this transverse section.

According to one embodiment, it is proposed that the sectional line of a longitudinal section is connected via at least two supply lines to the main extinguishing fluid line. This means that two separate supply lines lead to the main extinguishing fluid line and these two supply lines are connected to the sectional lines. Sectional lines are thus connected via two supply lines to the main extinguishing fluid line. A supply line is secured in relation to the main extinguishing fluid line by a valve. In order to prevent extinguishing fluid from flowing via the sectional line from one supply line into the other supply line, it is proposed that non-return valves are provided between the sectional lines and the supply lines. In this case, when a valve of a first supply line is opened, extinguishing fluid can flow via this supply line into the sectional line and the non-return valve which is arranged between the sectional line and the further supply line can prevent a further flowing of the extinguishing fluid into the second supply line.

The aforementioned arrangement of non-return valves between the supply line and sectional lines is advantageous, particularly if at least two sectional lines are connected to only one supply line within a longitudinal section, but all other sectional lines are connected to both supply lines. In this case, at least one supply line and one valve can be saved between the main extinguish and fluid line and the sectional line .

According to one embodiment, it is proposed that the supply lines are connected respectively via a valve to the main extinguishing fluid line. A supply line can connect one or more sectional lines to the main extinguishing fluid line. In order to feed extinguishing fluid into the sectional line, the valve which disconnects the main extinguishing fluid line from the supply line can be opened. A valve can be opened depending on the fire localisation, so that only the sectional lines that are necessary for effective fire-fighting are connected via the supply line to the main extinguishing fluid line.

According to one embodiment, it is proposed that the sectional lines allocated respectivelyto a longitudinal section form a set of sectional lines. This means that the sectional lines allocated to the transverse sections of the longitudinal section form the set of sectional lines. One set of sectional lines is thus provided in one longitudinal section. A plurality of sets of sectional lines can be provided in a plurality of longitudinal sections. This means that one set of sectional lines can be provided per longitudinal section. When a fire has been localised, at least two sets of sectional lines can preferably be activated, wherein, for each set of sectional lines, only a selection of sectional lines is connected to the main extinguishing fluid line.

According to one embodiment, a sectional line is arranged over a length of 20 m parallel to the longitudinal direction of the tunnel. Lengths of 30 or 40 m are similarly possible.

The sectional line is supplied with at least three extinguishing fluid nozzles which are preferably distributed equidistantly over the entire length of the sectional line.

An extinguishing fluid nozzle is preferably an extinguishing spray nozzle or a sprinkler nozzle. An extinguishing spray nozzle has the advantage that it finely nebulises the extinguishing fluid and thus enables effective fire-fighting, in which the seat of the fire is very effectively cooled by the fine water spray. Extinguishing spray is preferably produced at high pressures which are, in particular, above 2.5 bar, 5 bar or even 10 bar.

In order to be able to reliably fight a fire within a parking bay, an emergency stopping bay or an emergency exit, it is proposed that two sectional lines are provided behind one another therein. Each of the two sectional lines can be allocated to a separate set of sectional lines. It is also possible for the two sectional lines to be allocated to or to form a common set of sectional lines.

According to one embodiment, it is proposed that the sectional lines of a longitudinal section are connected respectively via at least two supply lines to the main extinguishing fluid line. In this case, the sectional lines are connected respectively to the supply lines to the main extinguishing fluid line and can be supplied with extinguishing fluid via both supply lines. In order to prevent a hydraulic short circuit between supply lines via the sectional lines, nonreturn valves are proposed between the supply lines and sectional lines, as already explained above. Furthermore, if the sectional lines which are arranged on the opposite-lying ends of a longitudinal section are connected to the main extinguishing fluid line via only one of the supply lines, it is possible, by opening a valve of a supply line, to connect a limited number or selection of sectional lines to the main extinguishing fluid line. Depending on the respectively opened valve between the supply line and the main extinguishing fluid line, the common sectional lines and the sectional line in each case on one end of the width of the tunnel are supplied with extinguishing fluid. A further aspect is a method according to Claim 17. Firstly, a fire must be sufficiently reliably localised. Therein, the fire can preferably be allocated to a transverse section, wherein a transverse section subdivides the longitudinal section of a tunnel in its width. Depending on the localisation of the fire, a limited selection of the sectional lines respectively allocated to a transverse section can then be connected to the main extinguishing fluid line. The corresponding valves which separate the sectional line from the main extinguishing fluid line can be opened or closed for this purpose.

According to one embodiment, it is proposed that the sectional lines which are allocated to the transverse section in which the fire has been localised are connected to the main extinguishing fluid line. Furthermore, the sectional lines which are immediately adjacent to the transverse section in which the fire has been localised can additionally be connected to the main extinguishing fluid line.

According to one embodiment, it is proposed that, out of a total number of N (where N is a natural number) , N-l or N-2 sectional lines are connected to the main extinction fluid line when a fire has been localised.

The aforementioned method can also be implemented as a computer program or as a computer program stored on the storage medium. Here, the specified method steps are carried out in the control device or the fire localisation device by a computer program which is programmed accordingly.

The features of the methods and devices can be freely combined with one another. In particular, features of the description and/or the dependent claims, also completely or partially circumventing features of the independent claims, can be independently inventive on their own or freely combined with one another.

The subject-matter is explained in detail below with reference to a drawing showing embodiments.

In the drawing:

Fig. 1 shows a schematic set-up of a fire-fighting device in a tunnel;

Fig. 2 shows an activated fire-fighting device according to Fig. 1 in the case of a fire in a first transverse section;

Fig. 3 shows an activated fire-fighting device according to Fig. 1 in the case of a fire in an emergency stopping bay;

Fig. 4 shows an activated fire-fighting device according to Fig. 1 in the case of a fire in a further transverse section .

Fig. 1 shows schematically a tunnel with three traffic lanes 1, 3, 5 and an emergency stopping bay 7. The tunnel is subdivided along its longitudinal direction into four longitudinal sections A, B, C and D. Each longitudinal section A, B, C, D is subdivided into transverse sections a, b, c, d. It is evident that the longitudinal section A is subdivided into the transverse sections a, b, c. The transverse sections a, b, c subdivide the tunnel into equally wide sections. The longitudinal sections B, C have a further transverse section d, which is allocated to the emergency stopping bay 7. The transverse sections a, b, c are allocated to the traffic lanes 1, 3, 5.

It is furthermore evident that a sectional line 2 is provided in each transverse section a, b, c, d. The sectional lines 2 are referred to below in such a way that e.g. the sectional line 2Aa is allocated to the longitudinal section A and to the transverse section a and, for example, the sectional line 2Bd is allocated to the longitudinal section B and the transverse section d.

The sectional lines 2 are connected to a main extinguishing fluid line 4 via valves 5. The connection between the main extinguishing fluid line 4 and the sectional lines 2 is established via the valves 5 and the supply lines 14.

The valves 5Ai and 5A2 connect the sectional lines 2Aa, 2Ab, 2Ac to the main extinguishing fluid line 4 via the supply line 14Ai, 14a2.

Corresponding suffixes for the designation of the valves and the supply lines are used below for the longitudinal sections B, C, D also.

The main extinguishing fluid line 4 is connected to an extinguishing fluid supply 8 which is, for example, a pump and can transport extinguishing fluid under pressure to the sectional lines 2.

Furthermore, fire localisation devices 16 are arranged in the tunnel. Said devices may, for example, be cameras or smoke gas detectors. The fire localisation devices 16 are connected to a control device 6. Depending on a localisation of a fire in a transverse section 2, the control device 6 can control the valves 5 in such a way that the latter are opened or closed.

In order to reduce the number of valves 5, it is proposed that sectional lines 2 are connected in a partially overlapping manner to two control lines 14, and non-return valves 12 are provided to avoid hydraulic short circuits.

By way of example, the sectional line 2Ab is connected in the longitudinal section A to both the supply line 14Ai and the supply line 14A2. If one of the valves 5Ai or 5A2 opens, the non-return valve 12 allocated to the opposite-lying supply line 14 closes, so that a hydraulic short circuit is prevented. By means of this arrangement, it is possible to supply a selection of three sectional lines 2 in each case with extinguishing fluid by means of two valves 5. It is evident that, in the transverse section b, the sectional line 2Ab is connected to the main extinguishing fluid line 4 via the two supply lines 14A1 and 14A2, whereas the sectional lines 2Aa and 2Ag arranged on opposite-lying ends are connected in each case to only one supply line 14A2 or 14A2.

In the area of the emergency stopping bay 7, a dedicated supply line 14Bc, for example, can be connected via the valve 5Bc to the main extinguishing fluid line 4 and can supply the sectional lines 2Bd and 2Cd with extinguishing fluid. Furthermore, the sectional lines 2Bd and 2cb can be supplied via the sectional line 14B2 and also 14cl.

It is also possible for a dedicated supply line 14 to be provided for each sectional line 2, as shown, for example, in longitudinal section D.

The supply lines 14 are shown by way of example only, and it is merely advantageous that, when a fire has been localised, only a selection of sectional lines 2 within a longitudinal section A, B, C, D is connected to a main extinguishing fluid line 4.

This is shown below by way of example in Fig. 2.

In Fig. 2, by way of example, a fire has been localised in the transverse section Ac by the fire localisation device 16A. The control device 6 receives a corresponding localisation signal from the fire localisation device 16A. In the control device 6, a control signal is then transferred to the valve 5A2 · The valve 5a2 is opened, so that extinguishing fluid flows via the main extinguishing fluid line 4 into the supply line 14A2· The supply line 14A2 is connected to the sectional lines 2Ab and 2Ac, so that extinguishing fluid emerges from the extinguishing spray nozzles 10 arranged there. Via the non-return valve 12 of the supply line 14A1, extinguishing fluid is prevented from flowing from the supply line 14A2 via the sectional line 2Ab into the supply line 14A1. It is evident that only a selection, i.e. two sectional lines 2Ab, 2Ac, is supplied with extinguishing fluid, since only the valve 5A2 is opened. The fire in the transverse section Ac is effectively fought. Since extinguishing fluid is also output in the transverse section Ab, the fire is prevented from spreading into other transverse sections .

Fig. 3 shows by way of example that a fire has been localised in a transverse section Bd. In the case of a fire of this type, the following occurs:

The fire localisation device 16B localises the fire in the transverse section Bd. A corresponding localisation signal is transferred via the control line to the control device 6. The control device 6 establishes that the transverse section Bd lies within an emergency stopping bay 7. As a result, a control signal is initially transferred to the valve 5Bc, which connects the main extinguishing fluid line 4 to the supply line 14Bc. The extinguishing fluid then flows via the supply line 14Bc into the sectional lines 2Bd and 2Cd- Extinguishing fluid is output from the extinguishing nozzles 10 of these two sectional lines 2Bd, 2Cd·

In addition, the control device 6 can transfer a control signal to the valve 5B2, so that the valve 5B2 opens. Extinguishing fluid then flows additionally via the main extinguishing fluid line 4 into the sectional lines 2Bb and 2Cd so that extinguishing fluid is also output via the extinguishing nozzles 10 arranged there.

Fig. 4 shows a further example in which a fire has been localised, for example, in the transverse section Cc. In the case of a fire of this type, the following occurs:

The fire localisation device 16C detects a fire in the traffic lane 5 in the longitudinal section C and transfers a corresponding fire detection signal to the control device 6.

The control device 6 then transfers a control signal to the valve 5ci, which then opens. Extinguishing fluid passes via the supply line 14Ci into the sectional line 2Cbr the sectional line 2Cc and also the sectional line 2Cd· The control valve 12 arranged on the supply line 14Bc prevents extinguishing fluid from flowing into the supply line 14Bc and into the sectional line 2Bd. The non-return valve 12 on the supply line 14C2 prevents extinguishing fluid from flowing via the supply line 14C2 to the sectional line 2Ca. In this case, extinguishing fluid is output via the nozzles in the sectional lines 2cb, 2Cc and 2Cd- Here also, it is evident that no extinguishing fluid is output from the extinguishing nozzles in the sectional line 2Caf so that, here also, only a limited number of sectional lines 2 allocated to the transverse sections A, B, C, D are supplied with extinguishing fluid.

By means of the device according to the invention, it is possible to dimension a main extinguishing fluid line 4 as smaller than would be necessary if an entire longitudinal section were supplied with extinguishing fluid. As a result, installation costs are reduced with equally good fire-fighting results .

It should be noted that the main extinguishing fluid line 4 and also the valves 5 are shown here outside the tunnel, which has been done merely in the interests of clarity. In particular, the main extinguishing fluid line 4 and also the valves 5 can be arranged within the tunnel. The physical arrangement of the sectional lines 2 and the supply lines 14 is also selected purely by way of example and will be adapted to local conditions.

Claims

1. Brandbekæmpelsesindretning indrettet til tunnel omfattende: - mindst en hovedslukkevæskeledning (4), - mindst to sektionsledninger (2), der er forbundet med hovedsluk-kevæskeledningen (4), hvor - sektionsledningerne (2) er tilknyttet en langsgående sektion (A, B, C) af en tunnel, og - en styreindretning (6), der er forbundet med en brandlokaliseringsindretning (16), hvor styreindretningen (6) afhængigt af en brandlokalisering forbinder hovedslukkevæskeledningen (4) med et begrænset udvalg af sektionsledningerne (2) kendetegnet ved, - at sektionsledningerne (2) hver især er tilknyttet en af mindst to tværgående sektioner (a, b, c), der underinddeler den langsgående sektion (A, B, C), - at brandlokaliseringsindretningen (16) tilknytter en lokaliseret brand til en tværgående sektion (a, b, c).A firefighting device adapted to a tunnel comprising: - at least one main extinguishing fluid conduit (4), - at least two section ducts (2) connected to the main extinguishing fluid conduit (4), wherein - the section conduits (2) are connected to a longitudinal section (A, B) , C) of a tunnel, and - a control device (6) connected to a fire location device (16), wherein the control device (6), depending on a fire location, connects the main extinguishing fluid line (4) to a limited selection of the section lines (2) characterized by - the section lines (2) are each connected to one of at least two transverse sections (a, b, c) subdividing the longitudinal section (A, B, C), - the fire locating device (16) associates a localized fire with a transverse section (a, b, c).

2. Brandbekæmpelsesindretning ifølge krav 1, kendetegnet ved, at sektionsledningerne (2) har hver deres slukkevæskedyser (10), der er fordelt i længderetningen, og/eller at sektionsledningerne (2) forløber i det væsentlige parallelt med hinanden i længderetningen.Fire fighting device according to claim 1, characterized in that the section lines (2) each have their longitudinal extinguishing liquid nozzles (10) and / or that the section lines (2) extend substantially parallel to each other in the longitudinal direction.

3. Brandbekæmpelsesindretning ifølge et af kravene 1 til 2, kendetegnet ved, at de tværgående sektioner (a, b, c) er tilknyttet et kørespor (1, 3, 5) i tunnellen, og at sektionsledningerne (2) er anbragt fortrinsvis i midten i forhold til et kørespor (1,3, 5) af den tilknyttede tværgående sektion (a, b, c).Fire fighting device according to one of Claims 1 to 2, characterized in that the transverse sections (a, b, c) are connected to a driving track (1, 3, 5) in the tunnel and that the section lines (2) are arranged preferably in the middle relative to a driving track (1,3, 5) of the associated transverse section (a, b, c).

4. Brandbekæmpelsesindretning ifølge et af kravene 1 til 3, kendetegnet ved, at en tværgående sektion (a, b, c) er tilknyttet en parkeringsindbugtning, et nødspor (7) eller en nødudgang i tunnellen, og/eller at mindst to sektionsledninger (2), der er anbragt efter hinanden i længderetningen, er tilknyttet en parkeringsindbugtning, et nødspor (7) eller en nødudgang.Fire fighting device according to one of claims 1 to 3, characterized in that a transverse section (a, b, c) is connected to a parking bay, an emergency track (7) or an emergency exit in the tunnel, and / or that at least two section lines (2 ), which are arranged longitudinally in succession, are associated with a parking bay, an emergency track (7) or an emergency exit.

5. Brandbekæmpelsesindretning ifølge et af kravene 1 til 4, kendetegnet ved, at sektionsledningerne (2) er tilknyttet hver sin af mindst tre eller fire tværgående sektioner (a, b, c), der underinddeler den langsgående sektion (A, B, C).Fire-fighting device according to one of claims 1 to 4, characterized in that the section lines (2) are connected to each of at least three or four transverse sections (a, b, c) subdividing the longitudinal section (A, B, C) .

6. Brandbekæmpelsesindretning ifølge et af kravene 1 til 5, kendetegnet ved, at det begrænsede udvalg af sektionsledningerne (2) angår tre eller færre sektionsledninger (2), og/eller at det begrænsede udvalg angår den sektionsledning (2), i hvis pågældende tværgående sektion (a, b, c) branden er lokaliseret, og at det begrænsede udvalg derudover angår mindst den sektionsledning (2), hvis pågældende tværgående sektion (a, b, c) umiddelbart grænser op til den tværgående sektion (a, b, c), i hvilken branden er lokaliseret.Fire-fighting device according to one of claims 1 to 5, characterized in that the limited selection of section lines (2) relates to three or fewer section lines (2) and / or that the limited selection relates to the section line (2) in the transverse section concerned. section (a, b, c) the fire is located and that the limited selection also relates to at least the section line (2) whose transverse section (a, b, c) directly adjacent to the transverse section (a, b, c) ) in which the fire is located.

7. Brandbekæmpelsesindretning ifølge et af kravene 1 til 6, kendetegnet ved, at sektionsledningerne (2) af en langsgående sektion (A, B; C) er forbundet med hovedslukkevæskeledningen (4) via mindst to tilledninger (14), og at mindst en af sektionsledningerne (2) er forbundet med begge tilledninger (14) via hver sin tilbageslagsventil (12).Fire suppression device according to one of claims 1 to 6, characterized in that the section leads (2) of a longitudinal section (A, B; C) are connected to the main extinguishing fluid line (4) via at least two leads (14) and at least one of the the section lines (2) are connected to both lines (14) via a separate check valve (12).

8. Brandbekæmpelsesindretning ifølge et af kravene 1 til 7, kendetegnet ved, at tilledningerne (14) er forbundet med hovedslukkevæskeledningen (4) via hver sin ventil, og at styreindretningen (8) forbinder ventilerne afhængigt af brandlokaliseringen.Fire suppression device according to one of claims 1 to 7, characterized in that the pipes (14) are connected to the main extinguishing fluid line (4) via each valve and that the control device (8) connects the valves depending on the fire location.

9. Brandbekæmpelsesindretning ifølge et af kravene 1 til 8, kendetegnet ved, at sektionsledningerne (2), der hver især er tilknyttet en langsgående sektion (A, B, C), danner et sæt af sektionsledninger (2), og at en flerhed af sæt af sektionsledninger (2) er tilknyttet en flerhed af langsgående sektioner (A, B, C).Fire-fighting device according to one of claims 1 to 8, characterized in that the section lines (2), each of which are connected to a longitudinal section (A, B, C), form a set of section lines (2) and that a plurality of sets of section leads (2) are associated with a plurality of longitudinal sections (A, B, C).

10. Brandbekæmpelsesindretning ifølge et af kravene 1 til 9, kendetegnet ved, at en sektionsledning (2) har en længde på mindst 20 meter parallelt med længderetningen.Fire fighting device according to one of claims 1 to 9, characterized in that a section line (2) has a length of at least 20 meters parallel to the longitudinal direction.

11. Brandbekæmpelsesindretning ifølge et af kravene 1 til 10, kendetegnet ved, at der i en sektionsledning (2) er anbragt mindst tre slukkevæskedyser (10), og/eller at en slukkevæskedyse (10) er en slukketågedyse eller en sprinklerdyse.Fire fighting device according to one of claims 1 to 10, characterized in that at least three extinguishing nozzles (10) are arranged in a section line (2) and / or that an extinguishing nozzle (10) is an extinguishing nozzle or a sprinkler nozzle.

12. Brandbekæmpelsesindretning ifølge et af kravene 1 til 11, kendetegnet ved, at sektionsledningerne (2) af en langsgående sektion (A, B; C) er forbundet med hovedslukkevæskeledningen (4) via i hvert tilfælde mindst to tilledninger (14), og at sektionsledninger (2), der er anbragt ved de over for hinanden liggende ender af en tværgående sektion, er forbundet med hovedslukkevæskeledningen (4) via i hvert tilfælde kun ene tilledning (14).Fire fighting device according to one of claims 1 to 11, characterized in that the section leads (2) of a longitudinal section (A, B; C) are connected to the main extinguishing fluid line (4) via at least two leads (14) and that section leads (2) arranged at opposite ends of a transverse section are connected to the main extinguishing fluid conduit (4) via only one conduit (14) in each case.

13. Fremgangsmåde til at drive en brandbekæmpelsesindretning i tunneller omfattende: - at lokalisere en brand i en af mindst to tværgående sektioner (a, b, c), der underinddeler en langsgående sektion (A, B, C) af tunnellen, - at forbinde et begrænset udvalg af sektionsledninger (2), der er tilknyttet hver sin tværgående sektion (a, b, c), med en hovedslukkevæskeledning (4) afhængigt af den lokaliserede brand.A method of operating a fire-fighting device in tunnels comprising: - locating a fire in one of at least two transverse sections (a, b, c) subdividing a longitudinal section (A, B, C) of the tunnel, - connecting a limited selection of section lines (2), each of which is transversely sectioned (a, b, c), with a main extinguishing fluid line (4) depending on the localized fire.

14. Fremgangsmåde ifølge krav 13, kendetegnet ved, at i det mindste sektionsledningerne (2), som er tilknyttet den tværgående sektion (a, b, c), i hvilken branden er lokaliseret, og de umiddelbart tilgrænsende tværgående sektioner (a, b, c), der er tilknyttet denne tværgående sektion (a, b, c), forbindes med hovedslukkevæskeledningen (4).A method according to claim 13, characterized in that at least the section lines (2), which are connected to the transverse section (a, b, c) in which the fire is located and the immediately adjacent transverse sections (a, b, c) connected to this transverse section (a, b, c) is connected to the main shut-off fluid line (4).

15. Fremgangsmåde ifølge krav 13 eller 14, kendetegnet ved, at N-1 ud af et samlet antal N sektionsledninger forbindes med hovedslukkevæskeledningen ved en lokaliseret brand.Method according to claim 13 or 14, characterized in that N-1 out of a total number of N section lines is connected to the main extinguishing fluid line by a localized fire.